Ivalve yolawulo ephambili ye-Excavator PC200-8 PC220-8 ivelufa yokhuseleko 723-90-76101

Umgaqo wokusebenza kwevalve: Ivalve yokukhulula yenziwe ngevalve yokukhulula kunye nevalve yokukhangela. Xa uxinzelelo lwenkqubo lufikelela kuxinzelelo lokuvula i-valve yokunceda, i-valve yokunceda ivuliwe kwaye ipompo iyakhutshwa. Xa uxinzelelo lwenkqubo lwehla kuxinzelelo lokuvala lwe-valve yokunceda, i-valve yokunceda ivala kwaye imithwalo yempompo kwinkqubo.
Ivalve yokukhulula i-valve enokwenza ipompo ye-hydraulic ikhuphe phantsi kweemeko ezithile. I-valve yokukhulula ngokuqhelekileyo i-valve yokukhulula kunye ne-valve yeendlela ezimbini (ngokuqhelekileyo i-solenoid valve), esetyenziselwa ukuseta uxinzelelo oluphambili lwenkqubo (ipompo yeoli) xa ingakhutshwa. Xa i-oyile yoxinzelelo ikhutshiwe (ngeendlela ezimbini zokuguqulwa kwentshukumo yevalve), ioyile yoxinzelelo ibuyiselwa ngqo kwitanki, kwaye uxinzelelo lwempompo yeoyile luyancitshiswa lube malunga ne-zero, ukuze kuphunyezwe ulawulo lwe-loop kunye nokuphucula ubomi bepompo yeoli kunye nokunciphisa ukusetyenziswa kwamandla.
Ukuba ngowe-loop ebandakanyiweyo kwiluphu. I-valve yokunciphisa uxinzelelo isetyenziselwa ukulungelelanisa uxinzelelo olufunwa yi-activator, eluhlu kwi-loop kwaye ngokuqhelekileyo ayinakusetyenziswa ngokungafaniyo.

Ulwazi olongeziweyo:
Uhlobo lwevalve yokukhulula:
Uhlobo lokungena
Umjelo wokukhulula kunye nevalve yoxinzelelo zisekwe ngokwahlukileyo. Xa kuthululwa, i-spool nganye ikwimo engathathi hlangothi, kwaye i-oyile evela kumthombo we-oyile ikhutshwe ibuyele kwi-tank ngokusebenzisa umjelo okhethekileyo we-oyile ngevalve nganye, kwaye umjelo we-oyile wokukhulula uhamba ngevalve nganye yokubuyisela umva. Xa enye yeevalvu isebenza (oko kukuthi, i-oyile yokuthulula inqanyuliwe), ioli evela kumthombo we-oyile ingena kwi-actuator elawulwayo ukusuka kwi-valve ebuyela umva yendlela, kwaye uxinzelelo olusebenzayo lulinganiselwe yivalve yoxinzelelo kwi-valve. umfanekiso.
Isimbo sokukhulula
Ivalve yokukhulula kunye nevalve yokhuseleko idityaniswe ukuze yenze ivalve yoxinzelelo oluqhutywa ngumqhubi wenqwelomoya, eyivalve yokukhulula kunye nevalve yokhuseleko, kwaye ngamanye amaxesha ivalve yokuphuphuma. Ngexesha lokukhulula, i-oyile yokulawula idlula i-valve nganye yendlela, efana ne-oyile yokukhulula.