{"id":2210,"date":"2021-04-21T03:55:47","date_gmt":"2021-04-21T03:55:47","guid":{"rendered":"https:\/\/zlqu95mfyr.wpdns.site\/?p=2210"},"modified":"2021-04-21T08:45:06","modified_gmt":"2021-04-21T08:45:06","slug":"unloading-circuits-of-hydraulic-press","status":"publish","type":"post","link":"https:\/\/avido.cn\/cs\/unloading-circuits-of-hydraulic-press\/","title":{"rendered":"Vykl\u00e1dac\u00ed obvody hydraulick\u00e9ho lisu"},"content":{"rendered":"<p class=\"yoast-reading-time__wrapper\"><span class=\"yoast-reading-time__icon\"><\/span><span class=\"yoast-reading-time__descriptive-text\">P\u0159edpokl\u00e1dan\u00e1 doba \u010dten\u00ed:  <\/span><span class=\"yoast-reading-time__reading-time\">18<\/span><span class=\"yoast-reading-time__time-unit\"> minut<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Okruh vykl\u00e1dky je, kdy\u017e okruh nefunguje, tak\u017ee olejov\u00e9 \u010derpadlo b\u011b\u017e\u00ed bez z\u00e1t\u011b\u017ee. V\u00fdhodou je del\u0161\u00ed \u017eivotnost \u010derpadla, sn\u00ed\u017een\u00e1 spot\u0159eba energie, sn\u00ed\u017een\u00e1 tvorba tepla v syst\u00e9mu a vy\u0161\u0161\u00ed \u00fa\u010dinnost a bezpe\u010dn\u00fd provoz.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-question-1-choice-of-unloading-method\"><strong>Ot\u00e1zka 1: Volba zp\u016fsobu vykl\u00e1dky<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>1. Vykl\u00e1dac\u00ed okruh s reverzn\u00edm ventilem<\/strong><strong><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Obr\u00e1zek 1-1 je jednou z nejjednodu\u0161\u0161\u00edch metod vykl\u00e1dky, kter\u00e1 je obecn\u011b vhodn\u00e1 pro syst\u00e9my s mal\u00fdmi pr\u016ftoky, pro vysok\u00fd tlak a velk\u00e9 pr\u016ftoky (&gt; 3,5 MPa, 40 l\/min) obvod zp\u016fsob\u00ed ot\u0159esy.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"400\" height=\"406\" src=\"https:\/\/avido.cn\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/1-3.png\" alt=\"\" class=\"wd-lazy-fade wp-image-2214\" title=\"\" srcset=\"\" data-srcset=\"https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/1-3.png 400w, https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/1-3-150x152.png 150w, https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/1-3-296x300.png 296w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/figure><\/div>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">1-1 Vykl\u00e1dac\u00ed okruh s reverzn\u00edm ventilem<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>2. Vykl\u00e1dac\u00ed okruh s dvoucestn\u00fdm ventilem<\/strong><strong><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Obr\u00e1zek 1-2 ukazuje ru\u010dn\u011b ovl\u00e1dan\u00fd dvoucestn\u00fd ventil pro uvoln\u011bn\u00ed obvodu. Obr. 1-3 ukazuje obousm\u011brn\u00fd ventil ovl\u00e1dan\u00fd va\u010dkou, tak\u017ee kdy\u017e v\u00e1lec dos\u00e1hne konce sv\u00e9ho zp\u011btn\u00e9ho zdvihu, obousm\u011brn\u00fd ventil je ovl\u00e1d\u00e1n s\u00e1m a olej z \u010derpadla je p\u0159ipojen k n\u00e1dr\u017ei.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"400\" height=\"376\" src=\"https:\/\/avido.cn\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/2-2.png\" alt=\"\" class=\"wd-lazy-fade wp-image-2215\" title=\"\" srcset=\"\" data-srcset=\"https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/2-2.png 400w, https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/2-2-150x141.png 150w, https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/2-2-300x282.png 300w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/figure><\/div>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">1-2 Vykl\u00e1dac\u00ed okruh s ru\u010dn\u00edm dvoucestn\u00fdm ventilem<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"400\" height=\"401\" src=\"https:\/\/avido.cn\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/3-2.png\" alt=\"\" class=\"wd-lazy-fade wp-image-2216\" title=\"\" srcset=\"\" data-srcset=\"https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/3-2.png 400w, https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/3-2-150x150.png 150w, https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/3-2-300x300.png 300w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/figure><\/div>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">1-3 Vykl\u00e1dac\u00ed obvod s motorizovan\u00fdm dvoucestn\u00fdm ventilem<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>3. Vyb\u00edjec\u00ed obvod pomoc\u00ed akumul\u00e1toru<\/strong><strong><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pou\u017eit\u00ed vypou\u0161t\u011bc\u00edho obvodu akumul\u00e1toru, b\u011b\u017en\u011b pou\u017e\u00edvan\u00e9ho v up\u00ednac\u00edm za\u0159\u00edzen\u00ed, proto\u017ee obvod s akumul\u00e1torem m\u016f\u017ee p\u0159i dlouhodob\u00fdch up\u00ednac\u00edch prac\u00edch pou\u017e\u00edt akumul\u00e1tor k okruhu ke stla\u010den\u00ed a dopln\u011bn\u00ed net\u011bsnost\u00ed sou\u010d\u00e1st\u00ed a pouze olejov\u00e9ho \u010derpadla p\u0159eru\u0161ovan\u011b s nakl\u00e1dac\u00ed prac\u00ed. V tomto okruhu je obecn\u011b zp\u011btn\u00fd ventil.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Obr\u00e1zek 1-4 pou\u017e\u00edv\u00e1 hydraulick\u00fd obousm\u011brn\u00fd ventil, kter\u00fd se otev\u0159e, kdy\u017e okruh dos\u00e1hne ur\u010dit\u00e9ho po\u017eadavku na tlak, co\u017e umo\u017e\u0148uje vypu\u0161t\u011bn\u00ed \u010derpadla. Obr\u00e1zek 1-5 ukazuje obvod vyu\u017e\u00edvaj\u00edc\u00ed tlakov\u00e9 rel\u00e9 a elektromagnetick\u00fd dvoucestn\u00fd ventil. Kdy\u017e tlak v okruhu dos\u00e1hne ur\u010dit\u00e9 hodnoty, tlakov\u00e9 rel\u00e9 sepne elektromagnetick\u00fd ventil, aby vypustilo \u010derpadlo.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"400\" height=\"305\" src=\"https:\/\/avido.cn\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/4-2.png\" alt=\"\" class=\"wd-lazy-fade wp-image-2217\" title=\"\" srcset=\"\" data-srcset=\"https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/4-2.png 400w, https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/4-2-150x114.png 150w, https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/4-2-300x229.png 300w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/figure><\/div>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">1-4 Vykl\u00e1dac\u00ed okruh s hydraulick\u00fdm dvoucestn\u00fdm ventilem<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"400\" height=\"343\" src=\"https:\/\/avido.cn\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/5-3.png\" alt=\"\" class=\"wd-lazy-fade wp-image-2238\" title=\"\" srcset=\"\" data-srcset=\"https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/5-3.png 400w, https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/5-3-150x129.png 150w, https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/5-3-300x257.png 300w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/figure><\/div>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">1-5 Vykl\u00e1dac\u00ed obvod s tlakov\u00fdm rel\u00e9 a elektromagnetick\u00fdm 2cestn\u00fdm ventilem<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>4. Vykl\u00e1dac\u00ed okruh pomoc\u00ed kapalinou ovl\u00e1dan\u00e9ho pojistn\u00e9ho ventilu<\/strong><strong><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Na obr\u00e1zku 1-6 je port d\u00e1lkov\u00e9ho ovl\u00e1d\u00e1n\u00ed odleh\u010dovac\u00edho ventilu p\u0159ipojen k elektromagnetick\u00e9mu dvoucestn\u00e9mu ventilu, kter\u00fd m\u016f\u017ee b\u00fdt \u0161iroce pou\u017e\u00edv\u00e1n v automatick\u00fdch \u0159\u00eddic\u00edch syst\u00e9mech d\u00edky pou\u017eit\u00ed solenoidov\u00fdch ventil\u016f, kter\u00e9 se pou\u017e\u00edvaj\u00ed v obecn\u00fdch strojn\u00edch za\u0159\u00edzen\u00edch a kovac\u00edch stroj\u00edch . Elektromagnetick\u00fd ventil je \u0159\u00edzen tlakov\u00fdm rel\u00e9 v okruhu, tak\u017ee kdy\u017e tlak oleje v okruhu dos\u00e1hne ur\u010dit\u00e9ho tlaku, elektromagnetick\u00fd dvoucestn\u00fd ventil se otev\u0159e, co\u017e umo\u017en\u00ed olejov\u00e9mu \u010derpadlu vylo\u017eit. Jednosm\u011brn\u00fd ventil je navr\u017een tak, aby udr\u017eoval tlak v okruhu, kdy\u017e je olejov\u00e9 \u010derpadlo vypr\u00e1zdn\u011bno. V tomto okruhu solenoidov\u00fd dvoucestn\u00fd ventil pouze vypou\u0161t\u00ed pr\u016ftok oleje p\u0159es vzd\u00e1len\u00fd port p\u0159epou\u0161t\u011bc\u00edho ventilu, co\u017e nen\u00ed velk\u00fd pr\u016ftok, tak\u017ee lze pou\u017e\u00edt mal\u00fd dvoucestn\u00fd ventil.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"400\" height=\"274\" src=\"https:\/\/avido.cn\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/6-2.png\" alt=\"\" class=\"wd-lazy-fade wp-image-2220\" title=\"\" srcset=\"\" data-srcset=\"https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/6-2.png 400w, https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/6-2-150x103.png 150w, https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/6-2-300x206.png 300w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/figure><\/div>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">1-6 Vykl\u00e1dac\u00ed okruh kapalinov\u00e9ho pojistn\u00e9ho ventilu<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"400\" height=\"289\" src=\"https:\/\/avido.cn\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/7-2.png\" alt=\"\" class=\"wd-lazy-fade wp-image-2221\" title=\"\" srcset=\"\" data-srcset=\"https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/7-2.png 400w, https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/7-2-150x108.png 150w, https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/7-2-300x217.png 300w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/figure><\/div>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">1-7 Vykl\u00e1dac\u00ed okruh kapalinov\u00e9ho pojistn\u00e9ho ventilu<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Situace na obr\u00e1zku 1-7 je podobn\u00e1 v\u00fd\u0161e uveden\u00e9, krom\u011b toho, \u017ee k ovl\u00e1d\u00e1n\u00ed hydraulick\u00e9ho dvoucestn\u00e9ho ventilu a ovl\u00e1d\u00e1n\u00ed tlaku v okruhu se pou\u017e\u00edv\u00e1 sekven\u010dn\u00ed ventil.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Proto\u017ee je pojistn\u00fd ventil vybaven ovl\u00e1dac\u00edm potrub\u00edm, zvy\u0161uje se objem \u0159\u00eddic\u00ed komory, co\u017e bude m\u00edt nestabiln\u00ed \u00fa\u010dinek, a proto je do potrub\u00ed p\u0159id\u00e1n tlumi\u010d, kter\u00fd zlep\u0161uje jeho v\u00fdkon.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>5. Pou\u017eit\u00ed okruhu pro vypou\u0161t\u011bn\u00ed kompozitn\u00edho \u010derpadla<\/strong><strong><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V procesu obr\u00e1b\u011bn\u00ed obr\u00e1b\u011bc\u00edch stroj\u016f, v\u00e1lcov\u00e1n\u00ed oceli a dal\u0161\u00edch za\u0159\u00edzen\u00ed pot\u0159ebuje v\u00e1lec velk\u00e9 mno\u017estv\u00ed oleje a vysokorychlostn\u00ed pr\u00e1ci, dv\u011b \u010derpadla sou\u010dasn\u011b do okruhu pro odes\u00edl\u00e1n\u00ed oleje (nap\u0159\u00edklad proces pod\u00e1v\u00e1n\u00ed obrobk\u016f obr\u00e1b\u011bc\u00edch stroj\u016f), jak je zn\u00e1zorn\u011bno na obr\u00e1zku 1-8. V\u00e1lec v\u0161ak postupuje do kontaktu s obrobkem, tak\u017ee kdy\u017e tlak oleje stoupne, otev\u0159e se vypou\u0161t\u011bc\u00ed ventil, pot\u00e9 n\u00edzkotlak\u00e9 velk\u00e9 olejov\u00e9 \u010derpadlo bez z\u00e1t\u011b\u017ee, pouze vysokotlak\u00fdm mal\u00fdm olejov\u00fdm \u010derpadlem k p\u0159\u00edvodu oleje do okruhu .<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"400\" height=\"239\" src=\"https:\/\/avido.cn\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/8.png\" alt=\"\" class=\"wd-lazy-fade wp-image-2222\" title=\"\" srcset=\"\" data-srcset=\"https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/8.png 400w, https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/8-150x90.png 150w, https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/8-300x179.png 300w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/figure><\/div>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">1-8 Vykl\u00e1dac\u00ed okruh se slo\u017een\u00fdm \u010derpadlem<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>6. Obvod s variabiln\u00edm \u010derpadlem kompenzace tlaku<\/strong><strong><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Obvod zobrazen\u00fd na obr\u00e1zku 1-9 je variabiln\u00ed olejov\u00e9 \u010derpadlo, kter\u00e9 kompenzuje (\u0159\u00edd\u00ed) mno\u017estv\u00ed oleje podle v\u00fdstupn\u00edho tlaku \u010derpadla, co\u017e \u0161et\u0159\u00ed v\u00fdkon \u010derpadla. Jak je zn\u00e1zorn\u011bno na obr\u00e1zku 1-9, pomoc\u00ed reverzn\u00edho ventilu s neutr\u00e1ln\u00edm blokov\u00e1n\u00edm (typ O), kdy\u017e je ventil ve st\u0159edn\u00ed poloze, \u010derpadlo dod\u00e1v\u00e1 pouze takov\u00e9 mno\u017estv\u00ed oleje, kter\u00e9 ventilem unik\u00e1, a t\u00edm \u0161et\u0159\u00ed energii.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"400\" height=\"332\" src=\"https:\/\/avido.cn\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/9.png\" alt=\"\" class=\"wd-lazy-fade wp-image-2223\" title=\"\" srcset=\"\" data-srcset=\"https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/9.png 400w, https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/9-150x125.png 150w, https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/9-300x249.png 300w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/figure><\/div>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">1-9 Okruh s tlakov\u011b kompenzovan\u00fdm variabiln\u00edm \u010derpadlem<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>7. Vykl\u00e1dac\u00ed obvod pro v\u00edcev\u00e1lcov\u00e9 syst\u00e9my<\/strong><strong><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Jak je zn\u00e1zorn\u011bno na obr\u00e1zku 1-10, \u010derpadlo k v\u00edce ne\u017e dv\u011bma v\u00e1lc\u016fm p\u0159i dod\u00e1vce oleje, \u010dty\u0159cestn\u00fd ventil a dvoucestn\u00fd ventil zapojeny v akci, kdy\u017e je zp\u011btn\u00fd ventil v\u00e1lce ve st\u0159edn\u00ed poloze, \u010derpadlo nepracuje bez zat\u00ed\u017een\u00ed (tento obvod je v sou\u010dasn\u00e9 dob\u011b pou\u017e\u00edv\u00e1n v okruhu v\u00edcecestn\u00e9ho reverzn\u00edho ventilu).<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"400\" height=\"171\" src=\"https:\/\/avido.cn\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/10.png\" alt=\"\" class=\"wd-lazy-fade wp-image-2224\" title=\"\" srcset=\"\" data-srcset=\"https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/10.png 400w, https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/10-150x64.png 150w, https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/10-300x128.png 300w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/figure><\/div>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">1-10 Vykl\u00e1dac\u00ed obvod pro v\u00edcev\u00e1lcov\u00fd syst\u00e9m<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-question-2-selection-of-unloading-valves\"><strong>Ot\u00e1zka 2: V\u00fdb\u011br vykl\u00e1dac\u00edch ventil\u016f<\/strong><strong><\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Nejprve si v\u0161imn\u011bte rozd\u00edlu mezi vypou\u0161t\u011bc\u00edm pojistn\u00fdm ventilem a extern\u00edm regula\u010dn\u00edm ventilem pro vypou\u0161t\u011bc\u00ed ventil, vypou\u0161t\u011bc\u00ed pojistn\u00fd ventil se pou\u017e\u00edv\u00e1 hlavn\u011b v hydraulick\u00e9m okruhu vybaven\u00e9m akumul\u00e1torem, kdy\u017e pln\u00edc\u00ed tlak akumul\u00e1toru dos\u00e1hne nastaven\u00e9ho tlaku vypou\u0161t\u011bc\u00edho pojistn\u00e9ho ventilu , automaticky vypust\u00ed hydraulick\u00e9 \u010derpadlo. Vypou\u0161t\u011bc\u00ed pojistn\u00fd ventil vybaven\u00fd zp\u011btn\u00fdm ventilem slou\u017e\u00ed k zabr\u00e1n\u011bn\u00ed zp\u011btn\u00e9mu toku tlakov\u00e9ho oleje v akumul\u00e1toru, kdy\u017e akumul\u00e1tor dod\u00e1v\u00e1 olej do syst\u00e9mu a udr\u017euje tlak. Kdy\u017e tlak kapaliny v akumul\u00e1toru klesne na p\u0159ibli\u017en\u011b 85% nastaven\u00e9ho tlaku vypou\u0161t\u011bc\u00edho pojistn\u00e9ho ventilu, vypou\u0161t\u011bc\u00ed pojistn\u00fd ventil se zav\u0159e a hydraulick\u00e9 \u010derpadlo obnov\u00ed pln\u011bn\u00ed akumul\u00e1toru.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"400\" height=\"224\" src=\"https:\/\/avido.cn\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/11.png\" alt=\"\" class=\"wd-lazy-fade wp-image-2225\" title=\"\" srcset=\"\" data-srcset=\"https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/11.png 400w, https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/11-150x84.png 150w, https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/11-300x168.png 300w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/figure><\/div>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">1-11 Pilotn\u011b ovl\u00e1dan\u00e9 vypou\u0161t\u011bc\u00ed pojistn\u00e9 ventily jsou up\u0159ednost\u0148ov\u00e1ny pro hydraulick\u00e9 syst\u00e9my s dlouh\u00fdmi dobami vykl\u00e1dky<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">1 - hydraulick\u00e9 \u010derpadlo 2, 3 - ventil<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Za druh\u00e9, hydraulick\u00e9 syst\u00e9my s dlouhou dobou vykl\u00e1dky by m\u011bly pou\u017e\u00edvat pilotn\u011b ovl\u00e1dan\u00e9 vypou\u0161t\u011bc\u00ed pojistn\u00e9 ventily. Obr\u00e1zek 1-11 (a) ukazuje hydraulick\u00fd syst\u00e9m, kter\u00fd vy\u017eaduje dlouh\u00e9 intervaly p\u016fsoben\u00ed a vysokorychlostn\u00ed pohyb ovl\u00e1dac\u00edho prvku. Kdy\u017e se hydraulick\u00fd v\u00e1lec p\u0159estane pohybovat, v\u00fdstupn\u00ed tlak hydraulick\u00e9ho \u010derpadla 1 je vysok\u00fd a n\u00edzk\u00fd a nem\u016f\u017ee se nep\u0159etr\u017eit\u011b vypou\u0161t\u011bt, co\u017e m\u00e1 za n\u00e1sledek vysokou spot\u0159ebu energie syst\u00e9mu a vysokou teplotu oleje. D\u016fvodem je net\u011bsnost sou\u010d\u00e1sti v okruhu nebo potrub\u00ed, opakovan\u00e9 otev\u00edr\u00e1n\u00ed a zav\u00edr\u00e1n\u00ed ventilu extern\u00ed \u0159\u00eddic\u00ed sekvence zp\u016fsoben\u00e9. Na obr\u00e1zku 1-11 (b) proto vyberte p\u0159etlakov\u00fd ventil vypou\u0161t\u011bc\u00edho pilotn\u00edho ventilu, kter\u00fd nahrad\u00ed ventil p\u016fvodn\u00edho okruhu 2 a ventil 3, p\u0159i\u010dem\u017e vykl\u00e1dac\u00ed p\u00edst na c\u00edvku \u0159\u00eddic\u00edho ventilu pou\u017eije dal\u0161\u00ed tah, aby byla zaji\u0161t\u011bna otev\u0159en\u00e1 vykl\u00e1dac\u00ed cesta \u010derpadla 1 , i kdy\u017e obvod unik\u00e1, aby se sn\u00ed\u017eil tlak v akumul\u00e1toru, m\u016f\u017ee \u010derpadlo 1 uv\u00e9st do stavu nep\u0159etr\u017eit\u00e9ho vykl\u00e1d\u00e1n\u00ed, aby spl\u0148ovalo syst\u00e9mov\u00e9 po\u017eadavky.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-question-3-design-of-the-unloading-circuit\"><strong>Ot\u00e1zka 3: N\u00e1vrh vykl\u00e1dac\u00edho okruhu<\/strong><strong><\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">V syst\u00e9mu zobrazen\u00e9m na obr\u00e1zku 1-12 je hydraulick\u00e9 \u010derpadlo kvantitativn\u00ed, neutr\u00e1ln\u00ed funkce t\u0159\u00edcestn\u00e9ho reverzn\u00edho ventilu je typu Y a hydraulick\u00fd v\u00e1lec nefunguje, kdy\u017e se t\u0159\u00edcestn\u00fd reverzn\u00ed ventil vrac\u00ed do neutr\u00e1ln\u00ed polohy . Vykl\u00e1d\u00e1n\u00ed syst\u00e9mu je prov\u00e1d\u011bno pilotn\u011b ovl\u00e1dan\u00fdm pojistn\u00fdm ventilem a dvoupolohov\u00fdm vypou\u0161t\u011bc\u00edm obvodem dvoucestn\u00fdch elektromagnetick\u00fdch ventil\u016f, tentokr\u00e1t m\u016f\u017ee b\u00fdt port d\u00e1lkov\u00e9ho ovl\u00e1d\u00e1n\u00ed p\u0159ipojen p\u0159es mal\u00fd elektromagnetick\u00fd ventil a olejovou n\u00e1dr\u017e p\u0159ipojenou p\u0159i vypnut\u00ed elektromagnetu, dvoupolohov\u00fd obousm\u011brn\u00fd p\u0159\u00edstup elektromagnetick\u00e9ho ventilu je p\u0159eru\u0161en, syst\u00e9m funguje norm\u00e1ln\u011b; kdy\u017e je elektromagnet zapnut, je p\u0159ipojen dvoupolohov\u00fd dvoucestn\u00fd elektromagnetick\u00fd ventil, tak\u017ee tlak v horn\u00ed \u010d\u00e1sti hlavn\u00ed c\u00edvky odleh\u010dovac\u00edho ventilu je t\u00e9m\u011b\u0159 nulov\u00fd, c\u00edvka se zvedne a zvedne nejvy\u0161\u0161\u00ed polohu, proto\u017ee ventil Horn\u00ed \u010d\u00e1st pru\u017einy c\u00edvky je m\u011bkk\u00e1, tak\u017ee tlak v tlakov\u00e9m olejov\u00e9m otvoru je v tuto chv\u00edli velmi n\u00edzk\u00fd a d\u00edky p\u0159etlakov\u00e9mu ventilu se cel\u00fd syst\u00e9m p\u0159i n\u00edzk\u00e9m tlaku uvoln\u00ed.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"350\" height=\"364\" src=\"https:\/\/avido.cn\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/12.png\" alt=\"\" class=\"wd-lazy-fade wp-image-2226\" title=\"\" srcset=\"\" data-srcset=\"https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/12.png 350w, https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/12-150x156.png 150w, https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/12-288x300.png 288w\" sizes=\"(max-width: 350px) 100vw, 350px\" \/><\/figure><\/div>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">1-12 Pilotn\u011b ovl\u00e1dan\u00fd obvod regulace tlaku pojistn\u00e9ho ventilu<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Probl\u00e9my: <\/strong><strong><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kdy\u017e byl hydraulick\u00fd syst\u00e9m nainstalov\u00e1n a uveden do provozu, syst\u00e9m zaznamenal prudk\u00e9 vibrace a hluk.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Bylo zji\u0161t\u011bno, \u017ee vibrace a hluk byly generov\u00e1ny p\u0159etlakov\u00fdm ventilem. Demont\u00e1\u017e a kontrola pojistn\u00e9ho ventilu, \u010d\u00e1st\u00ed ventilu, pohybliv\u00fdch \u010d\u00e1st\u00ed s v\u016fl\u00ed, \u010distoty ventil\u016f, instalace a dal\u0161\u00edch hledisek jsou v souladu s konstruk\u010dn\u00edmi po\u017eadavky. Odleh\u010dovac\u00ed ventil byl testov\u00e1n na zku\u0161ebn\u00edm stavu, v\u00fdkonnostn\u00ed parametry byly norm\u00e1ln\u00ed a k chyb\u011b do\u0161lo p\u0159i instalaci syst\u00e9mu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Po opakovan\u00e9m testov\u00e1n\u00ed a anal\u00fdze bylo zji\u0161t\u011bno, \u017ee vykl\u00e1dac\u00ed obvod, port d\u00e1lkov\u00e9ho ovl\u00e1d\u00e1n\u00ed odleh\u010dovac\u00edho ventilu k dvoupolohov\u00e9mu dvoucestn\u00e9mu elektromagnetick\u00e9mu ventilu mezi populac\u00ed d\u00e9lky potrub\u00ed je kr\u00e1tk\u00fd, p\u0159epou\u0161t\u011bc\u00ed ventil nevytv\u00e1\u0159\u00ed vibrace a hluk, kdy\u017e d\u00e9lka potrub\u00ed je v\u011bt\u0161\u00ed ne\u017e 1 m, p\u0159epou\u0161t\u011bc\u00ed ventil bude vytv\u00e1\u0159et vibrace a abnorm\u00e1ln\u00ed hluk.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Probl\u00e9m je zp\u016fsoben zv\u00fd\u0161en\u00edm objemu \u0159\u00eddic\u00ed komory p\u0159etlakov\u00e9ho ventilu (p\u0159edn\u00ed komora pilotn\u00edho ventilu). \u010c\u00edm v\u011bt\u0161\u00ed je objem dutiny, t\u00edm je nestabiln\u011bj\u0161\u00ed a dlouh\u00e9 potrub\u00ed je n\u00e1chyln\u00e9 ke zbytk\u016fm-trochu vzduchu, tak\u017ee olej v dutin\u011b ve dvoupolohov\u00e9m dvoucestn\u00e9m reverzn\u00edm ventilu projde nebo se zlom\u00ed, kol\u00eds\u00e1n\u00ed tlaku je v\u011bt\u0161\u00ed , zp\u016fsobuj\u00edc\u00ed kvalitu pru\u017einov\u00e9ho syst\u00e9mu ventilu (nebo hlavn\u00edho ventilu) samo\u010dinn\u00e9ho buzen\u00ed a generov\u00e1n\u00ed \u0161umu, je takov\u00fd \u0161um zn\u00e1m\u00fd tak\u00e9 jako vysokofrekven\u010dn\u00ed p\u00edskav\u00fd zvuk.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"550\" height=\"312\" src=\"https:\/\/avido.cn\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/\u56fe\u72472-3.png\" alt=\"\" class=\"wd-lazy-fade wp-image-2227\" title=\"\" srcset=\"\" data-srcset=\"https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/\u56fe\u72472-3.png 550w, https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/\u56fe\u72472-3-150x85.png 150w, https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/\u56fe\u72472-3-300x170.png 300w, https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/\u56fe\u72472-3-500x284.png 500w\" sizes=\"(max-width: 550px) 100vw, 550px\" \/><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u0158e\u0161en\u00ed:<\/strong><strong><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">P\u0159i d\u00e1lkov\u00e9 regulaci tlaku nebo vypou\u0161t\u011bn\u00ed p\u0159etlakov\u00e9ho ventilu plat\u00ed, \u017ee \u010d\u00edm krat\u0161\u00ed a ten\u010d\u00ed je potrub\u00ed d\u00e1lkov\u00e9ho ovl\u00e1d\u00e1n\u00ed, t\u00edm l\u00e9pe sn\u00ed\u017e\u00edte objem dutiny nebo nastav\u00edte pevn\u00fd tlumic\u00ed otvor pro sn\u00ed\u017een\u00ed tlakov\u00fdch r\u00e1z\u016f a kol\u00eds\u00e1n\u00ed tlaku. Pevn\u00fd tlumic\u00ed otvor je pevn\u00fd \u0161krtic\u00ed prvek, kter\u00fd by m\u011bl b\u00fdt instalov\u00e1n co nejbl\u00ed\u017ee k portu d\u00e1lkov\u00e9ho ovl\u00e1d\u00e1n\u00ed odleh\u010dovac\u00edho ventilu, odd\u011bluj\u00edc\u00ed \u0159\u00eddic\u00ed komoru odleh\u010dovac\u00edho ventilu od \u0159\u00eddic\u00edho potrub\u00ed, aby do\u0161lo k r\u00e1zov\u00e9mu r\u00e1zu a kol\u00eds\u00e1n\u00ed tlaku kapaliny b\u00fdt rychle utlumeny, co\u017e \u00fa\u010dinn\u011b eliminuje vibrace a p\u00edsk\u00e1n\u00ed odleh\u010dovac\u00edho ventilu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kdy\u017e je olej z portu d\u00e1lkov\u00e9ho ovl\u00e1d\u00e1n\u00ed odleh\u010dovac\u00edho ventilu \u0161krcen zp\u011bt do n\u00e1dr\u017ee, zv\u00fd\u0161\u00ed se tlak oleje v \u0159\u00eddic\u00ed dutin\u011b a podle toho se zv\u00fd\u0161\u00ed v\u00fdstupn\u00ed tlak syst\u00e9mu. Aby se zabr\u00e1nilo nadm\u011brn\u00e9mu zv\u00fd\u0161en\u00ed tlaku p\u0159i vykl\u00e1dce syst\u00e9mu, nem\u011bl by b\u00fdt tlumic\u00ed otvor pevn\u00e9ho \u0161krtic\u00edho prvku p\u0159\u00edli\u0161 mal\u00fd, pokud dok\u00e1\u017ee eliminovat vibrace a hluk. Krom\u011b toho, pokud jsou otvory p\u0159\u00edli\u0161 mal\u00e9, budou snadno zablokov\u00e1ny a syst\u00e9m nebude moci vylo\u017eit. V praxi se v\u011bt\u0161\u00ed a del\u0161\u00ed tlumic\u00ed otvory osv\u011bd\u010dily p\u0159i \u0159\u00edzen\u00ed stability kapaliny \u00fa\u010dinn\u011bji ne\u017e krat\u0161\u00ed a ten\u010d\u00ed tlumic\u00ed otvory.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-question-4-problems-in-the-design-of-the-unloading-circuit\"><strong>Ot\u00e1zka 4: Probl\u00e9my v konstrukci vykl\u00e1dac\u00edho okruhu<\/strong><strong><\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>1. Probl\u00e9m uvoln\u011bn\u00ed obrobku hydraulick\u00e9ho up\u00ednac\u00edho syst\u00e9mu<\/strong><strong><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Jak je zn\u00e1zorn\u011bno na obr\u00e1zku 1-13 (a) pro up\u00ednac\u00ed hydraulick\u00fd syst\u00e9m obr\u00e1b\u011bc\u00edch stroj\u016f a obrobk\u016f, kdy\u017e je zav\u0159en\u00fd sekven\u010dn\u00ed ventil 1, hydraulick\u00e9 \u010derpadlo nem\u016f\u017ee okam\u017eit\u011b naplnit akumul\u00e1tor, co\u017e m\u00e1 za n\u00e1sledek, \u017ee se obrobek \u010dasto uvoln\u00ed nebo dokonce spadne, to lze pou\u017e\u00edt Obr\u00e1zek 1-13 (b) syst\u00e9m, pr\u00e1ce ru\u010dn\u00edho reverzn\u00edho ventilu nastaven\u00e9ho do lev\u00e9 polohy, \u010derpadlo k akumul\u00e1toru a p\u0159\u00edvod oleje do hydraulick\u00e9ho v\u00e1lce a zatla\u010dte p\u00edst doprava. P\u0159i kontaktu s obrobkem stoup\u00e1 tlak v syst\u00e9mu, dokud tlakov\u00e9 rel\u00e9 nevys\u00edl\u00e1 sign\u00e1l k nap\u00e1jen\u00ed elektromagnetick\u00e9ho ventilu 2 a uvoln\u011bn\u00ed \u010derpadla p\u0159es ventil 3, akumul\u00e1tor udr\u017euje tlak v syst\u00e9mu a dopl\u0148uje net\u011bsnost syst\u00e9mu. Kdy\u017e tlak klesne na spodn\u00ed hranici tlakov\u00e9ho rel\u00e9, rel\u00e9 odpoj\u00ed elektromagnetick\u00fd ventil a hydraulick\u00e9 \u010derpadlo pokra\u010duje v dod\u00e1vce oleje do syst\u00e9mu a akumul\u00e1toru. Tento p\u0159\u00edklad ilustruje konstrukci akumul\u00e1toru k udr\u017een\u00ed tlaku v syst\u00e9mu p\u0159i vykl\u00e1dce okruhu, - mus\u00ed zajistit p\u0159im\u011b\u0159en\u00e9 slo\u017een\u00ed konstrukce hydraulick\u00e9ho okruhu. Kdy\u017e je obrobek napln\u011bn olejem, obrobek je \u010dasto uvoln\u011bn\u00fd nebo dokonce spadl, pak lze pou\u017e\u00edt syst\u00e9m zn\u00e1zorn\u011bn\u00fd na obr\u00e1zku 1-13 (b), ru\u010dn\u00ed reverzn\u00ed ventil je nastaven do lev\u00e9 polohy, \u010derpadlo dod\u00e1v\u00e1 olej k akumul\u00e1toru a hydraulick\u00e9mu v\u00e1lci a tla\u010d\u00ed p\u00edst doprava. P\u0159i kontaktu s obrobkem stoup\u00e1 tlak v syst\u00e9mu, dokud tlakov\u00e9 rel\u00e9 nevys\u00edl\u00e1 sign\u00e1l k nap\u00e1jen\u00ed elektromagnetick\u00e9ho ventilu 2 a uvoln\u011bn\u00ed \u010derpadla p\u0159es ventil 3, akumul\u00e1tor udr\u017euje tlak v syst\u00e9mu a dopl\u0148uje net\u011bsnost syst\u00e9mu. Kdy\u017e tlak klesne na spodn\u00ed hranici tlakov\u00e9ho rel\u00e9, rel\u00e9 odpoj\u00ed elektromagnetick\u00fd ventil a hydraulick\u00e9 \u010derpadlo pokra\u010duje v dod\u00e1vce oleje do syst\u00e9mu a akumul\u00e1toru. Tento p\u0159\u00edklad ukazuje, \u017ee p\u0159i navrhov\u00e1n\u00ed vykl\u00e1dac\u00edho okruhu s akumul\u00e1torem pro udr\u017eov\u00e1n\u00ed tlaku v syst\u00e9mu je d\u016fle\u017eit\u00e9, aby byl n\u00e1vrh hydraulick\u00e9ho okruhu rozumn\u00fd.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"577\" height=\"226\" src=\"https:\/\/avido.cn\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/13.png\" alt=\"\" class=\"wd-lazy-fade wp-image-2228\" title=\"\" srcset=\"\" data-srcset=\"https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/13.png 577w, https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/13-150x59.png 150w, https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/13-300x118.png 300w, https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/13-500x196.png 500w\" sizes=\"(max-width: 577px) 100vw, 577px\" \/><\/figure><\/div>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">1-13 Hydraulick\u00fd syst\u00e9m up\u00edn\u00e1n\u00ed obrobku<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">A. hydraulick\u00fd syst\u00e9m pro up\u00edn\u00e1n\u00ed obrobk\u016f na obr\u00e1b\u011bc\u00edch stroj\u00edch 1-sekven\u010dn\u00ed ventil 2-hydrodynamick\u00fd ventil 3-p\u0159etlakov\u00fd ventil<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">b. Vylep\u0161en\u00fd hydraulick\u00fd syst\u00e9m pro up\u00edn\u00e1n\u00ed obrobk\u016f na obr\u00e1b\u011bc\u00edch stroj\u00edch<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">1-tlakov\u00e9 rel\u00e9 2-solenoidov\u00e9 ventily 3- pojistn\u00e9 ventily<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>2. \u0160patn\u00e9 vykl\u00e1d\u00e1n\u00ed dvoupolohov\u00e9ho vykl\u00e1dac\u00edho okruhu dvoucestn\u00e9ho ventilu<\/strong><strong><\/strong><\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"350\" height=\"322\" src=\"https:\/\/avido.cn\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/14.png\" alt=\"\" class=\"wd-lazy-fade wp-image-2229\" title=\"\" srcset=\"\" data-srcset=\"https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/14.png 350w, https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/14-150x138.png 150w, https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/14-300x276.png 300w\" sizes=\"(max-width: 350px) 100vw, 350px\" \/><\/figure><\/div>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">1-14 Vykl\u00e1dac\u00ed okruh s dvoupolohov\u00fdm dvoucestn\u00fdm ventilem<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">1-hydraulick\u00e9 \u010derpadlo 2-dvoupolohov\u00fd dvoucestn\u00fd elektromagnetick\u00fd ventil<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">3 - p\u0159etlakov\u00fd ventil<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"350\" height=\"308\" src=\"https:\/\/avido.cn\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/15.png\" alt=\"\" class=\"wd-lazy-fade wp-image-2230\" title=\"\" srcset=\"\" data-srcset=\"https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/15.png 350w, https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/15-150x132.png 150w, https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/15-300x264.png 300w\" sizes=\"(max-width: 350px) 100vw, 350px\" \/><\/figure><\/div>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">1-15 Vypou\u0161t\u011bc\u00ed obvod pomoc\u00ed mal\u00e9ho dvoupolohov\u00e9ho dvoucestn\u00e9ho ventilu k ovl\u00e1d\u00e1n\u00ed pilotn\u011b ovl\u00e1dan\u00e9ho pojistn\u00e9ho ventilu<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">1-hydraulick\u00e9 \u010derpadlo 2 p\u0159etlakov\u00fd ventil<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">3-dvoupolohov\u00fd, dvoucestn\u00fd elektromagnetick\u00fd ventil<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"350\" height=\"247\" src=\"https:\/\/avido.cn\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/16.png\" alt=\"\" class=\"wd-lazy-fade wp-image-2231\" title=\"\" srcset=\"\" data-srcset=\"https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/16.png 350w, https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/16-150x106.png 150w, https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/16-300x212.png 300w\" sizes=\"(max-width: 350px) 100vw, 350px\" \/><\/figure><\/div>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">1-16 Vykl\u00e1dac\u00ed okruh s extern\u011b ovl\u00e1dan\u00fdm pojistn\u00fdm ventilem<strong><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Obr\u00e1zek 1-14 ukazuje vykl\u00e1dac\u00ed obvod pomoc\u00ed dvoupolohov\u00e9ho dvoucestn\u00e9ho ventilu. Hydraulick\u00e9 \u010derpadlo je vysokotlak\u00e9 kvantitativn\u00ed \u010derpadlo s vysok\u00fdm pr\u016ftokem, v\u00fdstup \u010derpadla je p\u0159ipojen k dvoupolohov\u00e9mu dvoucestn\u00e9mu elektromagnetick\u00e9mu ventilu, kdy\u017e syst\u00e9m funguje, dvoupolohov\u00fd dvoucestn\u00fd ventil je nap\u00e1jen a odpojuje v\u00fdstup hydraulick\u00e9ho \u010derpadla do kan\u00e1lu n\u00e1dr\u017ee, v\u00fdstupn\u00ed tlak hydraulick\u00e9ho \u010derpadla olej do syst\u00e9mu, ovl\u00e1dac\u00ed prvek za\u010d\u00edn\u00e1 pracovat. Kdy\u017e ovl\u00e1dac\u00ed prvek p\u0159estane fungovat, solenoid je bez nap\u011bt\u00ed a v\u00fdstup oleje z \u010derpadla je sm\u011brov\u00e1n do n\u00e1dr\u017ee p\u0159es dvoupolohov\u00fd dvoucestn\u00fd ventil pro uvoln\u011bn\u00ed syst\u00e9mu. Bylo v\u0161ak zji\u0161t\u011bno, \u017ee kdy\u017e byl dvoupolohov\u00fd dvoucestn\u00fd ventil bez nap\u011bt\u00ed, syst\u00e9m nemohl b\u00fdt zcela vylo\u017een a zp\u016fsobil zah\u0159\u00e1t\u00ed syst\u00e9mu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D\u016fvodem, pro\u010d nen\u00ed syst\u00e9m zcela vypr\u00e1zdn\u011bn, je to, \u017ee specifikace dvoupolohov\u00e9ho dvoucestn\u00e9ho ventilu neodpov\u00edd\u00e1 v\u00fdstupn\u00edmu pr\u016ftoku hydraulick\u00e9ho \u010derpadla. Obecn\u011b \u0159e\u010deno, pr\u016ftok dvoupolohov\u00fdm dvoucestn\u00fdm ventilem by m\u011bl b\u00fdt stejn\u00fd jako v\u00fdstupn\u00ed pr\u016ftok hydraulick\u00e9ho \u010derpadla p\u0159i vykl\u00e1dce a ne men\u0161\u00ed ne\u017e v\u00fdstupn\u00ed pr\u016ftok hydraulick\u00e9ho \u010derpadla. Pokud u dvoupolohov\u00fdch dvoucestn\u00fdch ventil\u016f nelze specifikovat v\u00fdstupn\u00ed v\u00fdkon hydraulick\u00e9ho \u010derpadla zp\u011bt do n\u00e1dr\u017ee, nevyhnuteln\u011b se zv\u00fd\u0161\u00ed v\u00fdstupn\u00ed tlak \u010derpadla prost\u0159ednictv\u00edm dvoupolohov\u00e9ho dvoucestn\u00e9ho ventilu, \u010d\u00edm\u017e se zv\u00fd\u0161\u00ed rozd\u00edl hydraulick\u00e9ho tlaku, tak\u017ee dva -pozi\u010dn\u00ed dvoucestn\u00fd ventil funguje jako \u0161krtic\u00ed klapka, tak\u017ee se hydraulick\u00e9 \u010derpadlo nem\u016f\u017ee zcela uvolnit a zp\u016fsobit zah\u0159\u00e1t\u00ed syst\u00e9mu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tento p\u0159\u00edklad ukazuje, \u017ee takov\u00fd vykl\u00e1dac\u00ed okruh je vhodn\u00fd pouze pro hydraulick\u00e9 syst\u00e9my s mal\u00fdm pr\u016ftokem, tj. Obvykle pro hydraulick\u00e1 \u010derpadla s pr\u016ftokem men\u0161\u00edm ne\u017e 63 l\/min. Vysokotlak\u00e9 syst\u00e9my a syst\u00e9my s vysok\u00fdm pr\u016ftokem by m\u011bly pou\u017e\u00edvat jin\u00e9 formy vykl\u00e1dac\u00edch obvod\u016f, nap\u0159\u00edklad ten, kter\u00fd je zn\u00e1zorn\u011bn na obr\u00e1zku 1-15, kter\u00fd pou\u017e\u00edv\u00e1 mal\u00fd dvoupolohov\u00fd dvoucestn\u00fd ventil k ovl\u00e1d\u00e1n\u00ed pilotn\u011b ovl\u00e1dan\u00e9ho pojistn\u00e9ho ventilu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kdy\u017e je dvoupolohov\u00fd dvoucestn\u00fd elektromagnetick\u00fd ventil 3 pod nap\u011bt\u00edm, port d\u00e1lkov\u00e9ho ovl\u00e1d\u00e1n\u00ed pojistn\u00e9ho ventilu 2 vede k n\u00e1dr\u017ei a v\u00fdstup tlakov\u00e9ho oleje z hydraulick\u00e9ho \u010derpadla 1 otev\u0159e p\u0159etlakov\u00fd ventil 2 p\u0159i velmi n\u00edzk\u00e9m tlaku a v\u0161e proud\u00ed zp\u011bt do n\u00e1dr\u017ee, aby se dos\u00e1hlo vykl\u00e1dky. Velikost vypou\u0161t\u011bc\u00edho tlaku z\u00e1vis\u00ed na s\u00edle pru\u017einy hlavn\u00edho ventilu odleh\u010dovac\u00edho ventilu a je obecn\u011b 0,2 a\u017e 0,4 MPa. ventil 3 pot\u0159ebuje pouze \u0159\u00eddit olej vyt\u00e9kaj\u00edc\u00ed z olejov\u00e9ho okruhu p\u0159es pojistn\u00fd ventil 2, co\u017e umo\u017e\u0148uje pou\u017eit\u00ed men\u0161\u00ed specifikace ventilu a umo\u017e\u0148uje d\u00e1lkov\u00e9 ovl\u00e1d\u00e1n\u00ed. Kdy\u017e je elektromagnetick\u00fd ventil odpojen, m\u00e1 tento vykl\u00e1dac\u00ed obvod tak\u00e9 mnohem m\u00edrn\u011bj\u0161\u00ed proces n\u00e1b\u011bhu ne\u017e obvod zn\u00e1zorn\u011bn\u00fd na obr\u00e1zku 1-14.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kdy\u017e je v\u0161ak ventil 3 p\u0159ipojen k portu d\u00e1lkov\u00e9ho ovl\u00e1d\u00e1n\u00ed ventilu 2, objem \u0159\u00eddic\u00ed komory ventilu 2 se zvy\u0161uje, co\u017e m\u016f\u017ee zp\u016fsobit nestabilitu pr\u00e1ce, a z tohoto d\u016fvodu je na spojovac\u00edm za\u0159\u00edzen\u00ed \u010dasto nastaveno tlumic\u00ed za\u0159\u00edzen\u00ed olejov\u00fd okruh. Obvod vykl\u00e1dky pomoc\u00ed extern\u011b ovl\u00e1dan\u00fdch pojistn\u00fdch ventil\u016f je tak\u00e9 tohoto typu, jak je zn\u00e1zorn\u011bno na obr\u00e1zku 1-16. Vykl\u00e1d\u00e1 hydraulick\u00e9 \u010derpadlo a sou\u010dasn\u011b zaji\u0161\u0165uje rychl\u00e9 pod\u00e1v\u00e1n\u00ed hydraulick\u00fdch v\u00e1lc\u016f a postupn\u00e9 pod\u00e1v\u00e1n\u00ed pr\u00e1ce. Obecn\u011b plat\u00ed, \u017ee vykl\u00e1dac\u00ed okruh mus\u00ed sn\u00ed\u017eit vyprazd\u0148ovac\u00ed tlak na co nejni\u017e\u0161\u00ed hodnotu (z tohoto d\u016fvodu by m\u011blo b\u00fdt sou\u010d\u00e1st\u00ed okruhu co nejm\u00e9n\u011b, potrub\u00ed by tak\u00e9 m\u011blo b\u00fdt co nejkrat\u0161\u00ed), ale tak\u00e9 aby byl syst\u00e9m v pracovn\u00edm stavu a ve stavu vykl\u00e1dky p\u0159i p\u0159ep\u00edn\u00e1n\u00ed mezi sebou co nejplynuleji, mal\u00fd n\u00e1raz, n\u00edzk\u00e1 hlu\u010dnost.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>3. Probl\u00e9m ne\u00fapln\u00e9ho vykl\u00e1d\u00e1n\u00ed<\/strong><\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"540\" height=\"227\" src=\"https:\/\/avido.cn\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/17.png\" alt=\"\" class=\"wd-lazy-fade wp-image-2232\" title=\"\" srcset=\"\" data-srcset=\"https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/17.png 540w, https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/17-150x63.png 150w, https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/17-300x126.png 300w, https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/17-500x210.png 500w\" sizes=\"(max-width: 540px) 100vw, 540px\" \/><\/figure><\/div>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">1-17 Okruh vyprazd\u0148ov\u00e1n\u00ed olejov\u00e9ho \u010derpadla se zadr\u017een\u00edm tlaku v akumul\u00e1toru<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">1-hydraulick\u00e9 \u010derpadlo 2-hydraulick\u00fd sekven\u010dn\u00ed ventil 3-zp\u011btn\u00fd ventil 4-akumul\u00e1tor 5-pojistn\u00fd ventil 6-dvoupolohov\u00fd, dvoucestn\u00fd, kapalinou ovl\u00e1dan\u00fd sm\u011brov\u00fd ventil<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Jak je zn\u00e1zorn\u011bno na obr\u00e1zku 1-17 (a), kdy\u017e tlak v akumul\u00e1toru 4 stoupne na tlak nastaven\u00fd vypou\u0161t\u011bc\u00edm ventilem (kapalinou \u0159\u00edzen\u00fd sekven\u010dn\u00ed ventil) 2, ventil 2 se otev\u0159e, hydraulick\u00e9 \u010derpadlo 1 se uvoln\u00ed, zp\u011btn\u00fd ventil 3 se zav\u0159e, a syst\u00e9m udr\u017euje tlak (udr\u017eov\u00e1n\u00ed tlaku); kdy\u017e je tlak v syst\u00e9mu ni\u017e\u0161\u00ed ne\u017e tlak nastaven\u00fd ventilem 2, ventil 2 se zav\u0159e a \u010derpadlo 1 znovu dod\u00e1 do syst\u00e9mu tlakov\u00fd olej. Odleh\u010dovac\u00ed ventil 5 v tuto chv\u00edli funguje jako pojistn\u00fd ventil. Hlavn\u00ed chybou tohoto obvodu je, \u017ee vykl\u00e1dka nen\u00ed dokon\u010dena a doch\u00e1z\u00ed ke ztr\u00e1t\u011b nap\u00e1jen\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D\u016fvod-porucha: kdy\u017e tlak stoupne, kapalinou ovl\u00e1dan\u00fd sekven\u010dn\u00ed ventil 2 se otev\u0159e jen \u010d\u00e1ste\u010dn\u011b, stejn\u011b jako p\u0159etlakov\u00fd ventil, tak\u017ee se hydraulick\u00e9 \u010derpadlo 1 vylo\u017e\u00ed, co\u017e zp\u016fsob\u00ed ztr\u00e1tu v\u00fdkonu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u0158e\u0161en\u00ed<\/strong>:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Za prv\u00e9, pou\u017eijte mal\u00fd hydraulick\u00fd sekven\u010dn\u00ed ventil 2 jako pilotn\u00ed ventil k ovl\u00e1d\u00e1n\u00ed otev\u00edr\u00e1n\u00ed hlavn\u00edho pojistn\u00e9ho ventilu 5, jak je zn\u00e1zorn\u011bno na obr\u00e1zku 1-17 (b), aby bylo zaji\u0161t\u011bno, \u017ee ventil 5 je p\u0159i vykl\u00e1dce zcela otev\u0159en\u00fd.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Za druh\u00e9, obvod zobrazen\u00fd na obr. 1-17 (c) se pou\u017e\u00edv\u00e1 k otev\u0159en\u00ed dvoupolohov\u00e9ho t\u0159\u00edcestn\u00e9ho kapalinou ovl\u00e1dan\u00e9ho reverzn\u00edho ventilu 2 nejprve tlakem akumul\u00e1toru (syst\u00e9mu) a pot\u00e9 k vytvo\u0159en\u00ed dvoupolohov\u00e9ho obousm\u011brn\u00fd kapalinou ovl\u00e1dan\u00fd reverzn\u00ed ventil 6 se zcela otev\u0159e, \u010d\u00edm\u017e se zajist\u00ed, \u017ee se hlavn\u00ed pojistn\u00fd ventil 5 pln\u011b otev\u0159e, co\u017e umo\u017en\u00ed \u00fapln\u00e9 vypu\u0161t\u011bn\u00ed \u010derpadla 1.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>4. Nestabilita p\u0159i vykl\u00e1dce<\/strong><\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"458\" height=\"252\" src=\"https:\/\/avido.cn\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/18.png\" alt=\"\" class=\"wd-lazy-fade wp-image-2233\" title=\"\" srcset=\"\" data-srcset=\"https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/18.png 458w, https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/18-150x83.png 150w, https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/18-300x165.png 300w\" sizes=\"(max-width: 458px) 100vw, 458px\" \/><\/figure><\/div>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">1-18 Vykl\u00e1dac\u00ed obvod s tlakov\u00fdm rel\u00e9 a elektromagnetick\u00fdm pojistn\u00fdm ventilem<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">1-hydraulick\u00e9 \u010derpadlo 2-zp\u011btn\u00fd ventil 3,3&#039;- Tlakov\u00e9 rel\u00e9 4-akumul\u00e1tor 5-elektromagnetick\u00fd pojistn\u00fd ventil<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Obvod akumul\u00e1toru na obr\u00e1zku 1-18 pou\u017e\u00edv\u00e1 tlakov\u00e9 rel\u00e9 3 k \u0159\u00edzen\u00ed vykl\u00e1dky nebo \u010dinnosti olejov\u00e9ho \u010derpadla. Hlavn\u00ed chybou, kter\u00e1 se v tomto okruhu vyskytuje, je to, \u017ee tlak v syst\u00e9mu kol\u00eds\u00e1 tam a zp\u011bt kolem regulovan\u00e9 hodnoty tlaku tlakov\u00e9ho rel\u00e9 3 (interval n\u00e1vratu) a \u010dasto se objevuje olejov\u00e9 \u010derpadlo, co\u017e m\u016f\u017ee v\u00fdrazn\u011b zkr\u00e1tit \u017eivotnost olejov\u00e9ho \u010derpadla.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0158e\u0161en\u00edm je pou\u017e\u00edt regulaci diferen\u010dn\u00edho tlaku s du\u00e1ln\u00edmi tlakov\u00fdmi rel\u00e9, jak je zn\u00e1zorn\u011bno na obr\u00e1zku 1-18 (b). Tlakov\u00e1 rel\u00e9 3 a 3 &#039;jsou nastavena na hodnoty nastaven\u00ed vysok\u00e9ho a n\u00edzk\u00e9ho tlaku, vykl\u00e1dka olejov\u00e9ho \u010derpadla je \u0159\u00edzena hodnotou nastaven\u00ed vysok\u00e9ho tlaku, zat\u00edmco p\u0159epracov\u00e1n\u00ed olejov\u00e9ho \u010derpadla je \u0159\u00edzeno hodnota nastaven\u00ed tlaku, tak\u017ee kdy\u017e je olejov\u00e9 \u010derpadlo vylo\u017eeno, akumul\u00e1tor pokra\u010duje ve vypou\u0161t\u011bn\u00ed oleje, dokud tlak p\u0159i op\u011btovn\u00e9m provozu olejov\u00e9ho \u010derpadla postupn\u011b neklesne pod hodnotu nastaven\u00ed n\u00edzk\u00e9ho tlaku. Mezi nimi je interval, \u010d\u00edm\u017e se zabr\u00e1n\u00ed fenom\u00e9nu \u010dast\u00e9ho p\u0159ep\u00edn\u00e1n\u00ed.<\/p>","protected":false},"excerpt":{"rendered":"<p>Okruh vykl\u00e1dky je, kdy\u017e okruh nefunguje, tak\u017ee olejov\u00e9 \u010derpadlo b\u011b\u017e\u00ed bez z\u00e1t\u011b\u017ee. V\u00fdhodou je del\u0161\u00ed \u017eivotnost \u010derpadla, sn\u00ed\u017een\u00e1 spot\u0159eba energie, sn\u00ed\u017een\u00e1 tvorba tepla v syst\u00e9mu a vy\u0161\u0161\u00ed \u00fa\u010dinnost a bezpe\u010dn\u00fd provoz<\/p>","protected":false},"author":1,"featured_media":2246,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[1],"tags":[233,691,690],"class_list":["post-2210","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-hydraulic-press","tag-hydraulic-press-machine","tag-unloading-circuits","tag-unloading-valve"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/avido.cn\/wp-content\/uploads\/2021\/04\/\u56fe\u72471-4.png","_links":{"self":[{"href":"https:\/\/avido.cn\/cs\/wp-json\/wp\/v2\/posts\/2210","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/avido.cn\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/avido.cn\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/avido.cn\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/avido.cn\/cs\/wp-json\/wp\/v2\/comments?post=2210"}],"version-history":[{"count":0,"href":"https:\/\/avido.cn\/cs\/wp-json\/wp\/v2\/posts\/2210\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/avido.cn\/cs\/wp-json\/wp\/v2\/media\/2246"}],"wp:attachment":[{"href":"https:\/\/avido.cn\/cs\/wp-json\/wp\/v2\/media?parent=2210"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/avido.cn\/cs\/wp-json\/wp\/v2\/categories?post=2210"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/avido.cn\/cs\/wp-json\/wp\/v2\/tags?post=2210"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}