Ivalvu yebhalansi yeHydraulic Excavator hydraulic cylinder spool CXHA-XBN

Isakhiwo se-valve yebhalansi kanye nesimiso sokusebenza

I-valve yebhalansi ye-hydraulic ivumela uwoyela ukuthi ugeleze ngokukhululeka ukusuka ku-port 2 ukuya ku-port 1. Singabona kusukela kumdwebo wesakhiwo phezulu esithombeni esingezansi ukuthi uma ukucindezela kukawoyela kwe-port 2 kuphezulu kunokwembobo 1, i-spool ingxenye eluhlaza iya echwebeni 1 ngaphansi kokushayela kwengcindezi ye-liquid, futhi i-valve yokuhlola ivuliwe, futhi uwoyela ungageleza ngokukhululekile ukusuka ku-port 2 kuya ku-port 1.

Ukugeleza kusuka kumbobo 1 kuya kutheku 2 kuvinjiwe kuze kube yilapho ukucindezela kwembobo yokushayela kufinyelela kunani elithile futhi i-spool eluhlaza okwesibhakabhaka ihanjiswa kwesokunxele ukuze kuvulwe imbobo yevalvu ukuze uwoyela ukwazi ukugeleza ukusuka ku-port 1 ukuya ku-port 2.

Imbobo iyavala lapho ukucindezela komshayeli kunganele ukuvula i-spool eluhlaza okwesibhakabhaka. Ukugeleza kusuka ku-port 1 kuya ku-port 2 kunqanyuliwe.
Umgomo wokusebenza kwe-valve ye-hydraulic balance:
Isekhethi yokulinganisa nge-valve yokulandelana kwe-unidirectional. Lungisa i-valve yokulandelana ukuze umkhiqizo wokucindezela kwayo okuvula kanye nendawo ebambelayo yegumbi elingaphansi le-hydraulic cylinder ibe mkhulu kancane kunomthamo wezingxenye ezihambayo eziqondile. Lapho i-piston yehla, ngoba kukhona ukucindezela okuthile emuva kumjikelezo wokubuyisela uwoyela ukusekela umthwalo wamandla adonsela phansi, i-piston izowa ngokushelelayo kuphela lapho ingxenye engenhla yepiston inengcindezi ethile; Lapho i-valve ehlehlayo isendaweni emaphakathi, i-piston iyayeka ukunyakaza futhi ayiqhubeki phansi. I-valve yokulandelana lapha ibizwa nangokuthi i-valve yebhalansi. Kule loop yebhalansi, i-valve yokulandelana ilungiswa ngemuva kokusetha ukucindezela. Uma umsebenzi uba mncane. Ukucindezela kwepompo kudinga ukwanda, okuzokwandisa ukulahlekelwa kwamandla kwesistimu. Ngenxa yokuvuza kwangaphakathi kwe-valve yokulandelana kanye ne-valve ehlehlayo yesakhiwo se-valve yesilayidi, kunzima ukwenza i-piston ime ngokwezibalo kunoma iyiphi indawo isikhathi eside, okuzokwenza ukuthi idivayisi yokulayisha amandla adonsela phansi islayidi. Ngakho-ke, le sekethi ifanele umthwalo womsebenzi ulungisiwe futhi izidingo zokuvala i-hydraulic cylinder piston locking azikho phezulu.