{"id":12671,"date":"2021-07-13T06:28:49","date_gmt":"2021-07-13T06:28:49","guid":{"rendered":"https:\/\/hqeialdi5a.wpdns.site\/?p=12671"},"modified":"2024-02-28T01:41:45","modified_gmt":"2024-02-28T01:41:45","slug":"3-questions-you-should-know-about-sequence-valve","status":"publish","type":"post","link":"https:\/\/www.yaiwo.com\/cs\/3-questions-you-should-know-about-sequence-valve\/","title":{"rendered":"3 ot\u00e1zky, kter\u00e9 byste m\u011bli v\u011bd\u011bt o sekven\u010dn\u00edm ventilu"},"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\">10<\/span><span class=\"yoast-reading-time__time-unit\"> minut<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sekven\u010dn\u00ed ventil vyu\u017e\u00edv\u00e1 tlak olejov\u00e9ho okruhu k \u0159\u00edzen\u00ed sekven\u010dn\u00ed \u010dinnosti olejov\u00e9ho v\u00e1lce nebo olejov\u00e9ho motoru k realizaci automatick\u00e9ho \u0159\u00edzen\u00ed syst\u00e9mu olejov\u00e9ho okruhu. Kdy\u017e tlak vstupn\u00edho olejov\u00e9ho okruhu nedos\u00e1hne p\u0159edem nastaven\u00e9ho tlaku sekven\u010dn\u00edho ventilu, ventil se uzav\u0159e; po dosa\u017een\u00ed tlaku se ventil otev\u0159e a tok oleje vstupuje do sekund\u00e1rn\u00edho tlakov\u00e9ho okruhu oleje, aby se aktivovaly komponenty dal\u0161\u00ed \u00farovn\u011b. Zm\u011bnou re\u017eimu ovl\u00e1d\u00e1n\u00ed, re\u017eimu vypou\u0161t\u011bn\u00ed a p\u0159ipojen\u00ed sekund\u00e1rn\u00edho olejov\u00e9ho okruhu lze sekven\u010dn\u00ed ventil pou\u017e\u00edt tak\u00e9 jako zp\u011btn\u00fd ventil, vypou\u0161t\u011bc\u00ed ventil a vyva\u017eovac\u00ed ventil.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-question-1-selection-of-sequence-valve\"><strong>Ot\u00e1zka 1: V\u00fdb\u011br sekven\u010dn\u00edho ventilu<\/strong><\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-1-sequence-valve-type-selection\">1. V\u00fdb\u011br typu sekven\u010dn\u00edho ventilu<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Sekven\u010dn\u00ed ventily lze rozd\u011blit na typy s vnit\u0159n\u00edm ovl\u00e1d\u00e1n\u00edm (tak\u00e9 zn\u00e1m\u00e9 jako p\u0159\u00edm\u00e9 ovl\u00e1d\u00e1n\u00ed <a href=\"https:\/\/www.youtube.com\/watch?v=mKMZHA3DD1w\" target=\"_blank\" rel=\"noopener\">sekven\u010dn\u00ed ventil<\/a>) a typ extern\u00edho ovl\u00e1d\u00e1n\u00ed (tak\u00e9 zn\u00e1m\u00fd jako hydraulick\u00fd regula\u010dn\u00ed sekven\u010dn\u00ed ventil nebo d\u00e1lkov\u00e9 ovl\u00e1d\u00e1n\u00ed <a href=\"https:\/\/www.yaiwo.com\/cs\/4-questions-about-pressure-control-valve-you-should-know\/\">sekven\u010dn\u00ed ventil<\/a>). Vnit\u0159n\u00ed regula\u010dn\u00ed sekven\u010dn\u00ed ventil m\u016f\u017ee p\u0159\u00edmo vyu\u017e\u00edvat tlak dovezen\u00e9ho olejov\u00e9ho okruhu k ovl\u00e1d\u00e1n\u00ed \u0161oup\u00e1tka. Extern\u00ed \u0159\u00eddic\u00ed (hydraulick\u00fd) sekven\u010dn\u00ed ventil mus\u00ed b\u00fdt \u0159\u00edzen tlakem oleje v okruhu \u0159\u00eddic\u00edho oleje (tj. d\u00e1lkov\u00e9 ovl\u00e1d\u00e1n\u00ed tlaku). Ventil je uzav\u0159en. Pokud se sekund\u00e1rn\u00ed tlakov\u00fd olejov\u00fd okruh sekven\u010dn\u00edho ventilu extern\u00edho typu vrac\u00ed do olejov\u00e9 n\u00e1dr\u017ee, tvo\u0159\u00ed vypou\u0161t\u011bc\u00ed ventil.<\/li>\n\n\n\n<li>Existuj\u00ed dva typy sekven\u010dn\u00edch ventil\u016f: p\u0159\u00edmo\u010dinn\u00e9 a pilotn\u011b ovl\u00e1dan\u00e9. Prvn\u00ed se pou\u017e\u00edv\u00e1 pro n\u00edzkotlak\u00e9 syst\u00e9my a druh\u00fd se pou\u017e\u00edv\u00e1 pro st\u0159edn\u011b vysokotlak\u00e9 syst\u00e9my.<\/li>\n\n\n\n<li>Vypou\u0161t\u011bc\u00ed otvor oleje mus\u00ed obecn\u011b v\u00e9st zp\u011bt do olejov\u00e9 n\u00e1dr\u017ee. Pokud je tedy sekund\u00e1rn\u00ed tlakov\u00fd olejov\u00fd okruh ventilu p\u0159ipojen k olejov\u00e9 n\u00e1dr\u017ei, m\u016f\u017ee b\u00fdt vypu\u0161t\u011bn vnit\u0159n\u011b, jinak mus\u00ed b\u00fdt vypu\u0161t\u011bn extern\u011b. Vypou\u0161t\u011bc\u00ed port by m\u011bl b\u00fdt p\u0159ipojen zp\u011bt k n\u00e1dr\u017ei samostatn\u011b.<\/li>\n\n\n\n<li>V\u00fdb\u011br c\u00edvky. Sekven\u010dn\u00ed ventil je sp\u00ednac\u00ed prvek. Ventil se otev\u0159e pouze tehdy, kdy\u017e tlak v syst\u00e9mu dos\u00e1hne nastaven\u00e9ho tlaku, tak\u017ee \u00fanik je p\u0159i zav\u0159en\u00e9m ventilu mal\u00fd. Sekven\u010dn\u00ed ventil konstrukce tal\u00ed\u0159ov\u00e9ho ventilu m\u00e1 mal\u00fd \u00fanik; sekven\u010dn\u00ed ventil konstrukce \u0161oup\u00e1tkov\u00e9ho ventilu by m\u011bl m\u00edt ur\u010dit\u00e9 mno\u017estv\u00ed krytu, aby se sn\u00ed\u017eil \u00fanik.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"240\" height=\"268\" src=\"https:\/\/www.yaiwo.com\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/www.yaiwo.com\/wp-content\/uploads\/2021\/07\/0914171001306315304-1-2.jpg\" alt=\"Sequence Valve\" class=\"wd-lazy-fade wp-image-12689\" title=\"\" srcset=\"\" data-srcset=\"https:\/\/www.yaiwo.com\/wp-content\/uploads\/2021\/07\/0914171001306315304-1-2.jpg 240w, https:\/\/www.yaiwo.com\/wp-content\/uploads\/2021\/07\/0914171001306315304-1-2-150x168.jpg 150w\" sizes=\"(max-width: 240px) 100vw, 240px\" \/><figcaption><\/figcaption><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-2-restrictions-on-the-application-of-sequence-valve\">2. <strong>Omezen\u00ed pou\u017eit\u00ed sekven\u010dn\u00edho ventilu<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Kdy\u017e je jednocestn\u00e1 sou\u010d\u00e1st instalov\u00e1na uvnit\u0159 sekven\u010dn\u00edho ventilu, naz\u00fdv\u00e1 se jednocestn\u00fd sekven\u010dn\u00ed ventil, kter\u00fd umo\u017e\u0148uje pr\u016ftok oleje voln\u011b proch\u00e1zet v opa\u010dn\u00e9m sm\u011bru a nen\u00ed omezov\u00e1n sekven\u010dn\u00edm ventilem. Na olejov\u00e9 cest\u011b, kterou je t\u0159eba obr\u00e1tit, se pou\u017e\u00edv\u00e1 v\u00edce jednosm\u011brn\u00fdch sekven\u010dn\u00edch ventil\u016f. . Sekven\u010dn\u00ed ventily nebo jednocestn\u00e9 sekven\u010dn\u00ed ventily, kter\u00e9 se pou\u017e\u00edvaj\u00ed k ovl\u00e1d\u00e1n\u00ed sekven\u010dn\u00edch akc\u00ed hydraulick\u00fdch v\u00e1lc\u016f nebo hydraulick\u00fdch motor\u016f, lze pou\u017e\u00edt k ovl\u00e1d\u00e1n\u00ed sekven\u010dn\u00edch akc\u00ed hydraulick\u00fdch v\u00e1lc\u016f nebo hydromotor\u016f.<\/li>\n\n\n\n<li>P\u0159i pou\u017eit\u00ed jako b\u011b\u017en\u00fd p\u0159epou\u0161t\u011bc\u00ed ventil p\u0159ipojte sekund\u00e1rn\u00ed tlakov\u00fd olejov\u00fd okruh p\u0159\u00edm\u00e9ho regula\u010dn\u00edho sekven\u010dn\u00edho ventilu zp\u011bt k olejov\u00e9 n\u00e1dr\u017ei, ze kter\u00e9 se stane b\u011b\u017en\u00fd p\u0159epou\u0161t\u011bc\u00ed ventil s bezpe\u010dnostn\u00ed funkc\u00ed.<\/li>\n\n\n\n<li>Slou\u017e\u00ed k automatick\u00e9mu odleh\u010den\u00ed hydraulick\u00e9ho \u010derpadla v akumul\u00e1torov\u00e9m syst\u00e9mu.<\/li>\n\n\n\n<li>Slou\u017e\u00ed k zabr\u00e1n\u011bn\u00ed sklouznut\u00ed olejov\u00e9ho v\u00e1lce a pracovn\u00edho mechanismu vlivem jeho hmotnosti a pou\u017e\u00edv\u00e1 se jako vyva\u017eovac\u00ed ventil.<\/li>\n\n\n\n<li>P\u0159i sekven\u010dn\u00edm provozu by m\u011bl b\u00fdt nastaven\u00fd tlak sekven\u010dn\u00edho ventilu minim\u00e1ln\u011b o 0,5 MPa vy\u0161\u0161\u00ed ne\u017e pracovn\u00ed tlak prvo\u010dinn\u00e9ho servomotoru, aby se p\u0159ede\u0161lo chybn\u00e9 \u010dinnosti v d\u016fsledku kol\u00eds\u00e1n\u00ed tlaku.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"300\" height=\"337\" src=\"https:\/\/www.yaiwo.com\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/www.yaiwo.com\/wp-content\/uploads\/2021\/07\/WebCat-002a00070002-1.jpg\" alt=\"Sequence Valve\" class=\"wd-lazy-fade wp-image-12675\" title=\"\" srcset=\"\" data-srcset=\"https:\/\/www.yaiwo.com\/wp-content\/uploads\/2021\/07\/WebCat-002a00070002-1.jpg 300w, https:\/\/www.yaiwo.com\/wp-content\/uploads\/2021\/07\/WebCat-002a00070002-1-267x300.jpg 267w, https:\/\/www.yaiwo.com\/wp-content\/uploads\/2021\/07\/WebCat-002a00070002-1-150x169.jpg 150w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><figcaption><\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-question-2-the-difference-between-sequence-valve-and-relief-valve\"><strong>Ot\u00e1zka 2: Rozd\u00edl mezi sekven\u010dn\u00edm ventilem a pojistn\u00fdm ventilem<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Sekven\u010dn\u00ed ventil je podobn\u00fd p\u0159epou\u0161t\u011bc\u00edmu ventilu. Aby pohony p\u0159esn\u011b realizovaly sekven\u010dn\u00ed akci, mus\u00ed b\u00fdt odchylka regulace tlaku mal\u00e1. Z tohoto d\u016fvodu by m\u011bla b\u00fdt sn\u00ed\u017eena tuhost tla\u010dn\u00e9 regula\u010dn\u00ed pru\u017einy. Rozd\u00edl mezi n\u00edm a p\u0159epou\u0161t\u011bc\u00edm ventilem je v tom, \u017ee jeho ztr\u00e1ta odporu ventilem se bl\u00ed\u017e\u00ed nule.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-1-the-difference-between-an-internally-controlled-direct-acting-sequence-valve-and-a-direct-acting-relief-valve\">1. Rozd\u00edl mezi intern\u011b \u0159\u00edzen\u00fdm p\u0159\u00edmo\u010dinn\u00fdm sekven\u010dn\u00edm ventilem a p\u0159\u00edmo\u010dinn\u00fdm pojistn\u00fdm ventilem<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Princip \u010dinnosti intern\u011b \u0159\u00edzen\u00e9ho p\u0159\u00edmo\u010dinn\u00e9ho sekven\u010dn\u00edho ventilu je podobn\u00fd jako u p\u0159\u00edmo\u010dinn\u00e9ho pojistn\u00e9ho ventilu. Rozd\u00edl je v sekund\u00e1rn\u00edm olejov\u00e9m okruhu, to znamen\u00e1, \u017ee v\u00fdstupn\u00ed tlakov\u00fd olej nen\u00ed p\u0159ipojen zp\u011bt k n\u00e1dr\u017ei, tak\u017ee unikaj\u00edc\u00ed olejov\u00fd port mus\u00ed b\u00fdt p\u0159ipojen zp\u011bt k n\u00e1dr\u017ei samostatn\u011b, aby se sn\u00ed\u017eila tuhost pru\u017einy regulace tlaku. ovl\u00e1dac\u00ed p\u00edst. Ventilov\u00fd port vnit\u0159n\u00edho regula\u010dn\u00edho sekven\u010dn\u00edho ventilu je v\u017edy uzav\u0159en d\u0159\u00edve, ne\u017e tlak v cest\u011b vstupn\u00edho oleje dos\u00e1hne nastaven\u00e9ho tlaku ventilu. Po dosa\u017een\u00ed nastaven\u00e9ho tlaku se ventilov\u00fd port otev\u0159e a umo\u017en\u00ed tlakov\u00e9mu oleji vstoupit do sekund\u00e1rn\u00ed olejov\u00e9 dr\u00e1hy, aby poh\u00e1n\u011bl dal\u0161\u00ed prov\u00e1d\u011bc\u00ed prvek.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-2-the-difference-between-the-unloading-relief-valve-and-external-control-sequence-valve-as-an-unloading-valve\">2. Rozd\u00edl mezi vypou\u0161t\u011bc\u00edm pojistn\u00fdm ventilem a extern\u00edm regula\u010dn\u00edm sekven\u010dn\u00edm ventilem jako vypou\u0161t\u011bc\u00edm ventilem<\/h4>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"350\" height=\"283\" src=\"https:\/\/www.yaiwo.com\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/www.yaiwo.com\/wp-content\/uploads\/2021\/07\/pressure-sequence-valve-with-check-psc35-500x500-1.jpg\" alt=\"Sequence Valve\" class=\"wd-lazy-fade wp-image-12677\" title=\"\" srcset=\"\" data-srcset=\"https:\/\/www.yaiwo.com\/wp-content\/uploads\/2021\/07\/pressure-sequence-valve-with-check-psc35-500x500-1.jpg 350w, https:\/\/www.yaiwo.com\/wp-content\/uploads\/2021\/07\/pressure-sequence-valve-with-check-psc35-500x500-1-300x243.jpg 300w, https:\/\/www.yaiwo.com\/wp-content\/uploads\/2021\/07\/pressure-sequence-valve-with-check-psc35-500x500-1-150x121.jpg 150w\" sizes=\"(max-width: 350px) 100vw, 350px\" \/><figcaption><\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The unloading relief valve is mainly used in hydraulic circuits equipped with accumulators. When the animal can\u00a0press the knife and press the knife to the pressure of the heart, it automatically unloads the hydraulic pump. The unloading overflow valve is equipped with a one-way valve to prevent the pressure oil of the energy storage fan from sinking. At this time, the accumulator supplies oil to the system and maintains pressure. When the oil pressure in the accumulator drops to the full pressure of the unloading overflow valve, the unloading overflow valve is closed and the hydraulic pump resumes charging the accumulator. Section 5.10 hydraulic equipment accumulator speed increase circuit, <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">because in this circuit, the unloading overflow valve should be selected as the unloading valve, and the general external control sequence valve is selected as the unloading valve, which causes the hydraulic pump outlet pressure High and low, resulting in high circuit power consumption, high oil temperature, and the system cannot work normally.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-question-3-the-difference-between-the-sequence-valve-function-symbol-and-the-overflow-valve-and-the-pressure-reducing-valve\"><strong>Ot\u00e1zka 3: Rozd\u00edl mezi symbolem funkce sekven\u010dn\u00edho ventilu a p\u0159epou\u0161t\u011bc\u00edm ventilem a reduk\u010dn\u00edm ventilem<\/strong>&nbsp;<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Rozd\u00edl mezi symbolem funkce sekven\u010dn\u00edho ventilu a p\u0159epou\u0161t\u011bc\u00edm ventilem a reduk\u010dn\u00edm ventilem je zn\u00e1zorn\u011bn n\u00ed\u017ee.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"350\" height=\"225\" src=\"https:\/\/www.yaiwo.com\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/www.yaiwo.com\/wp-content\/uploads\/2021\/07\/valve-1-1.png\" alt=\"Rozd\u00edl mezi diagramem funk\u010dn\u00edho symbolu sekven\u010dn\u00edho ventilu a pojistn\u00fdm ventilem a reduk\u010dn\u00edm ventilem\" class=\"wd-lazy-fade wp-image-12678\" title=\"\" srcset=\"\" data-srcset=\"https:\/\/www.yaiwo.com\/wp-content\/uploads\/2021\/07\/valve-1-1.png 350w, https:\/\/www.yaiwo.com\/wp-content\/uploads\/2021\/07\/valve-1-1-300x193.png 300w, https:\/\/www.yaiwo.com\/wp-content\/uploads\/2021\/07\/valve-1-1-18x12.png 18w, https:\/\/www.yaiwo.com\/wp-content\/uploads\/2021\/07\/valve-1-1-150x96.png 150w\" sizes=\"(max-width: 350px) 100vw, 350px\" \/><figcaption class=\"wp-element-caption\"><br>Rozd\u00edl mezi diagramem funk\u010dn\u00edho symbolu sekven\u010dn\u00edho ventilu a pojistn\u00fdm ventilem a reduk\u010dn\u00edm ventilem<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-pressure-switch\"><strong>Tlakov\u00fd sp\u00edna\u010d<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The pressure relay is an electro-hydraulic control element that converts the oil pressure signal into an electric signal. When the oil pressure reaches the set pressure of the pressure relay, an electrical signal is sent out to control the action of electrical components such as electromagnets, electromagnetic clutches, relays, etc., so that the oil circuit is depressurized and reversed, and the actuator realizes sequential action or turns off the motor. , Make the system stop working, play a role of safety protection, and so on. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The pressure relay is composed of a pressure-displacement conversion component and a micro switch. According to the structure of the pressure-displacement conversion component, the pressure relay has plunger type, spring tube type, diaphragm type, and bellows type. According to the function of sending electrical signals, pressure relays have a single contact type, double contact type, and other types.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-selection-of-pressure-relay\"><strong>V\u00fdb\u011br tlakov\u00e9ho rel\u00e9<\/strong><\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-type-selection\">V\u00fdb\u011br typu<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Nej\u010dast\u011bji se pou\u017e\u00edvaj\u00ed plun\u017erov\u00e1 tlakov\u00e1 rel\u00e9; tlakov\u00e1 rel\u00e9 pru\u017einov\u00fdch trubek maj\u00ed velk\u00fd rozsah nastaven\u00ed pracovn\u00edho tlaku, mal\u00fd rozd\u00edl tlak\u016f p\u0159i zapnut\u00ed a vypnut\u00ed a vysokou p\u0159esnost opakov\u00e1n\u00ed; membr\u00e1nov\u00e1 tlakov\u00e1 rel\u00e9 maj\u00ed mal\u00e9 posuvy, tak\u017ee maj\u00ed rychlou odezvu a vysokou p\u0159esnost opakov\u00e1n\u00ed, ale nejsou vhodn\u00e1 pro pou\u017eit\u00ed Je vhodn\u00e1 pro vysokotlak\u00e9 syst\u00e9my a snadno ji ovliv\u0148uj\u00ed kol\u00eds\u00e1n\u00ed tlaku; tlakov\u00e9 rel\u00e9 vlnovcov\u00e9ho typu m\u00e1 \u00fa\u010dinek zes\u00edlen\u00ed posunu na p\u00e1ce a posun j\u00e1drov\u00e9 ty\u010de je mal\u00fd, tak\u017ee opakovatelnost je vysok\u00e1, ale vlnovcov\u00fd typ nen\u00ed vhodn\u00fd pro p\u0159\u00edpady vysok\u00e9ho tlaku.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-restrictions-on-the-application-of-pressure-relay\">Omezen\u00ed pou\u017eit\u00ed tlakov\u00e9ho rel\u00e9<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Slou\u017e\u00ed k automatick\u00e9mu odleh\u010den\u00ed tlaku nebo zp\u011btn\u00e9mu pohybu okruhu c\u00edvky (\u0159\u00edzen\u00e9ho elektromagnetick\u00fdm ventilem), kdy\u017e tlak dos\u00e1hne nastaven\u00e9 hodnoty.<\/li>\n\n\n\n<li>Pou\u017e\u00edv\u00e1 se ke spu\u0161t\u011bn\u00ed nebo zastaven\u00ed hydraulick\u00e9ho \u010derpadla nebo hydromotoru, kdy\u017e je tlak v syst\u00e9mu v\u011bt\u0161\u00ed ne\u017e nastaven\u00fd tlak.<\/li>\n\n\n\n<li>Pou\u017e\u00edv\u00e1 se pro sekven\u010dn\u00ed p\u016fsoben\u00ed solenoidov\u00e9ho ventilu pod stanoven\u00fdm tlakem.<\/li>\n\n\n\n<li>Pou\u017e\u00edv\u00e1 se k zastaven\u00ed stroj\u016f, bezpe\u010dnostn\u00edch za\u0159\u00edzen\u00ed nebo tlakov\u00fdch v\u00fdstra\u017en\u00fdch sign\u00e1l\u016f nebo sign\u00e1l\u016f.<\/li>\n\n\n\n<li>Pou\u017e\u00edv\u00e1 se ke spu\u0161t\u011bn\u00ed pomocn\u00e9ho \u010derpadla v hydraulick\u00e9m lisu.<\/li>\n\n\n\n<li>Slou\u017e\u00ed ke spu\u0161t\u011bn\u00ed \u010dasov\u00e9ho rel\u00e9.<\/li>\n\n\n\n<li>Slou\u017e\u00ed k zastaven\u00ed jeho pomocn\u00e9ho za\u0159\u00edzen\u00ed p\u0159i poklesu tlaku hlavn\u00edho olejov\u00e9ho okruhu.<\/li>\n\n\n\n<li>Tlakov\u00e9 rel\u00e9 typu PF lze pou\u017e\u00edt pro za\u0159\u00edzen\u00ed pro \u0159\u00edzen\u00ed rozd\u00edlu tlaku mezi dv\u011bma vysok\u00fdmi a n\u00edzk\u00fdmi tlaky.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-reduced-sensitivity\"><strong>Sn\u00ed\u017een\u00e1 citlivost<\/strong><\/h4>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"299\" height=\"168\" src=\"https:\/\/www.yaiwo.com\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/www.yaiwo.com\/wp-content\/uploads\/2021\/07\/Employee-of-the-month-1.jpg\" alt=\"Voliteln\u00fd obtokov\u00fd zp\u011btn\u00fd ventil\" class=\"wd-lazy-fade wp-image-12680\" title=\"\" srcset=\"\" data-srcset=\"https:\/\/www.yaiwo.com\/wp-content\/uploads\/2021\/07\/Employee-of-the-month-1.jpg 299w, https:\/\/www.yaiwo.com\/wp-content\/uploads\/2021\/07\/Employee-of-the-month-1-150x84.jpg 150w\" sizes=\"(max-width: 299px) 100vw, 299px\" \/><figcaption class=\"wp-element-caption\">Voliteln\u00fd obtokov\u00fd zp\u011btn\u00fd ventil<\/figcaption><\/figure>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"h-the-sensitivity-of-the-pressure-relay-is-reduced-and-the-reason-for-the-damage-of-the-microswitch\">Sn\u00ed\u017e\u00ed se citlivost tlakov\u00e9ho rel\u00e9 a d\u016fvod po\u0161kozen\u00ed mikrosp\u00edna\u010de<\/h5>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Kdy\u017e je j\u00e1dro ventilu nebo tla\u010dn\u00e1 ty\u010d upnuta radi\u00e1ln\u011b, t\u0159ec\u00ed s\u00edla se zvy\u0161uje. Tento odpor je opa\u010dn\u00fd ke sm\u011bru pohybu j\u00e1dra ventilu a tla\u010dn\u00e9 ty\u010de. Jeden sm\u011br pom\u00e1h\u00e1 upravit s\u00edlu pru\u017einy pro zv\u00fd\u0161en\u00ed tlaku oleje a druh\u00fd sm\u011br pom\u00e1h\u00e1 tlaku oleje p\u0159ekonat s\u00edlu pru\u017einy, tak\u017ee tlak oleje se sn\u00ed\u017e\u00ed a tlak se sn\u00ed\u017e\u00ed. Citlivost rel\u00e9 je sn\u00ed\u017eena.<\/li>\n\n\n\n<li>B\u011bhem pou\u017e\u00edv\u00e1n\u00ed se v d\u016fsledku deformace dr\u017e\u00e1ku mikrosp\u00edna\u010de nebo v\u016fl\u00ed nulov\u00e9 nastaviteln\u00e9 \u010d\u00e1sti zv\u00fd\u0161\u00ed minim\u00e1ln\u00ed zdvih mikrosp\u00edna\u010de napr\u00e1zdno, kter\u00fd byl se\u0159\u00edzen nebo garantov\u00e1n po mont\u00e1\u017ei, a sn\u00ed\u017e\u00ed se citlivost.<\/li>\n\n\n\n<li>Pokud vypou\u0161t\u011bc\u00ed dutina tlakov\u00e9ho rel\u00e9 nen\u00ed p\u0159\u00edmo p\u0159ipojena k palivov\u00e9 n\u00e1dr\u017ei, bude citlivost sn\u00ed\u017eena v d\u016fsledku nadm\u011brn\u00e9ho protitlaku vypou\u0161t\u011bc\u00edho otvoru.<\/li>\n\n\n\n<li>\u010c\u00e1st mikrosp\u00edna\u010de diferenci\u00e1ln\u00edho tlakov\u00e9ho rel\u00e9 a vypou\u0161t\u011bc\u00ed dutina jsou odd\u011bleny pry\u017eovou membr\u00e1nou, tak\u017ee kdy\u017e se dutina vstupu oleje a dutina mozku obr\u00e1t\u00ed, tlakov\u00fd olej proraz\u00ed pry\u017eovou membr\u00e1nu a dostane se do \u010d\u00e1sti mikrosp\u00edna\u010de, \u010d\u00edm\u017e dojde k po\u0161kozen\u00ed mikrosp\u00edna\u010d.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-solution\">\u0158e\u0161en\u00ed<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Proto\u017ee je dutina pru\u017einy reguluj\u00edc\u00ed tlak a dutina mozku propojena, na se\u0159izovac\u00edm \u0161roubu nen\u00ed \u017e\u00e1dn\u00e9 t\u011bsnic\u00ed za\u0159\u00edzen\u00ed, tak\u017ee kdy\u017e je vypou\u0161t\u011bc\u00ed tlak p\u0159\u00edli\u0161 vysok\u00fd, doch\u00e1z\u00ed k vn\u011bj\u0161\u00edmu \u00faniku na nastavovac\u00edm \u0161roubu, tak\u017ee dutina odtoku mus\u00ed b\u00fdt p\u0159\u00edmo p\u0159ipojena k olejov\u00e1 n\u00e1dr\u017e.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-design-of-pressure-relay-circuit\"><strong>N\u00e1vrh obvodu tlakov\u00e9ho rel\u00e9<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>V okruhu regulace rychlosti \u0161krtic\u00ed klapky s polohov\u00e1n\u00edm \u017eelezn\u00e9ho dorazu by m\u011bla b\u00fdt mont\u00e1\u017en\u00ed poloha tlakov\u00e9ho rel\u00e9 na stejn\u00e9 stran\u011b jako regula\u010dn\u00ed ventil pr\u016ftoku a bl\u00edzko hydraulick\u00e9ho v\u00e1lce.<\/li>\n\n\n\n<li>Tlak v dutin\u011b p\u0159\u00edvodu oleje regula\u010dn\u00edho okruhu ot\u00e1\u010dek p\u0159\u00edvodu oleje se m\u011bn\u00ed se zat\u00ed\u017een\u00edm. Kdy\u017e pracovn\u00ed \u010d\u00e1st naraz\u00ed na mrtvou zar\u00e1\u017eku a p\u0159estane se pohybovat, jej\u00ed tlak stoupne na nastavovac\u00ed tlak pojistn\u00e9ho ventilu a tento tlak se pou\u017eije jako sign\u00e1l p\u0159\u00edkazu akce \u0159\u00eddic\u00ed sekvence.<\/li>\n\n\n\n<li>V okruhu regulace ot\u00e1\u010dek \u0161krtic\u00ed klapky oleje se tlak ve vratn\u00e9 komo\u0159e oleje m\u011bn\u00ed se zat\u00ed\u017een\u00edm. Pot\u00e9, co pracovn\u00ed \u010d\u00e1sti dos\u00e1hnou mrtv\u00e9ho dorazu, tlak klesne na nulu, tak\u017ee pou\u017eijte tento nulov\u00fd tlak, abyste vyslali sign\u00e1l.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">N\u00e1vrh um\u00edst\u011bn\u00ed tlakov\u00e9ho rel\u00e9 v regula\u010dn\u00ed smy\u010dce ot\u00e1\u010dek je zn\u00e1zorn\u011bn n\u00ed\u017ee.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"350\" height=\"228\" src=\"https:\/\/www.yaiwo.com\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/www.yaiwo.com\/wp-content\/uploads\/2021\/07\/valve2-1-1.png\" alt=\"N\u00e1vrh um\u00edst\u011bn\u00ed tlakov\u00e9ho rel\u00e9 v regula\u010dn\u00ed smy\u010dce ot\u00e1\u010dek\" class=\"wd-lazy-fade wp-image-12679\" title=\"\" srcset=\"\" data-srcset=\"https:\/\/www.yaiwo.com\/wp-content\/uploads\/2021\/07\/valve2-1-1.png 350w, https:\/\/www.yaiwo.com\/wp-content\/uploads\/2021\/07\/valve2-1-1-300x195.png 300w, https:\/\/www.yaiwo.com\/wp-content\/uploads\/2021\/07\/valve2-1-1-18x12.png 18w, https:\/\/www.yaiwo.com\/wp-content\/uploads\/2021\/07\/valve2-1-1-150x98.png 150w\" sizes=\"(max-width: 350px) 100vw, 350px\" \/><figcaption class=\"wp-element-caption\">N\u00e1vrh um\u00edst\u011bn\u00ed tlakov\u00e9ho rel\u00e9 v regula\u010dn\u00ed smy\u010dce ot\u00e1\u010dek<\/figcaption><\/figure>","protected":false},"excerpt":{"rendered":"<p>The sequence valve uses the pressure of the oil circuit to control the sequential action of the oil cylinder or<\/p>","protected":false},"author":4,"featured_media":12681,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[1013,1012,1014],"class_list":["post-12671","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-hydraulic-press","tag-chevy-350-valve-adjustment-sequence","tag-sequence-valve","tag-valve-cover-tightening-sequence"],"jetpack_featured_media_url":"https:\/\/www.yaiwo.com\/wp-content\/uploads\/2021\/07\/main-picture-1.jpg","_links":{"self":[{"href":"https:\/\/www.yaiwo.com\/cs\/wp-json\/wp\/v2\/posts\/12671","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.yaiwo.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.yaiwo.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.yaiwo.com\/cs\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.yaiwo.com\/cs\/wp-json\/wp\/v2\/comments?post=12671"}],"version-history":[{"count":0,"href":"https:\/\/www.yaiwo.com\/cs\/wp-json\/wp\/v2\/posts\/12671\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.yaiwo.com\/cs\/wp-json\/wp\/v2\/media\/12681"}],"wp:attachment":[{"href":"https:\/\/www.yaiwo.com\/cs\/wp-json\/wp\/v2\/media?parent=12671"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.yaiwo.com\/cs\/wp-json\/wp\/v2\/categories?post=12671"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.yaiwo.com\/cs\/wp-json\/wp\/v2\/tags?post=12671"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}