I-E320B i-valve yokusiza i-excavator 171-0030 E320 i-valve yokuphepha eyinhloko

I-valve yokukhulula i-valve yokulawula ukucindezela kwe-hydraulic, edlala indima enkulu yokunciphisa ingcindezi njalo, ukulawulwa kwengcindezi, ukuthulula uhlelo nokuvikelwa kokuphepha emishinini ye-hydraulic. Kuhlelo lwe-quantitative pump throttling regulation system, ipompo yokulinganisa inikeza ukugeleza okuqhubekayo, lapho ingcindezi yesistimu ikhuphuka, isidingo sokugeleza sizoncishiswa, ngalesi sikhathi i-valve yokusiza ivuliwe, ukuze ukugeleza ngokweqile kubuyele ethangini, ukuqinisekisa ukuthi ingcindezi yokungena kwe-valve yokusiza, okungukuthi, ingcindezi yokuphuma kwepompo ihlala njalo. I-valve yokusiza ixhunywe ochungechungeni kumjikelezo wamafutha obuyayo, futhi ukuzinza kwezingxenye ezihambayo zokucindezela emuva kwe-valve yokusiza kuyanda. Umsebenzi wokuthulula wesistimu uwukuxhuma i-valve ye-solenoid ngokugeleza okuchichimayo okuncane ochungechungeni endaweni yesilawuli kude sevalvu yokukhulula. Uma i-electromagnetic inikwa amandla, imbobo yesilawuli kude sevalvu yokukhulula idlula ethangini likaphethiloli. Ngalesi sikhathi, iphampu ye-hydraulic iyehliswa futhi i-valve yokusiza isetshenziswa njenge-valve yokukhipha. Umsebenzi wokuvikela ukuphepha, lapho uhlelo lusebenza ngokujwayelekile, i-valve ivaliwe, kuphela lapho umthwalo udlula umkhawulo obekiwe, ukuchichima kuvulwa, futhi ukuvikelwa kokulayisha ngokweqile kwenziwa, ukuze ukucindezela kwesistimu kungasakhushulwa.

I-valve yokukhulula, i-valve yokulawula ukucindezela kwe-hydraulic. Ngokuyinhloko idlala indima yokuchichima kwengcindezi eqhubekayo kanye nokuvikelwa kokuphepha emishinini ye-hydraulic. Umphumela wokuchichima kwengcindezi eqhubekayo: Kusistimu yokulawula i-quantitative pump throttling, iphampu yobuningi inikeza izinga lokugeleza njalo. Lapho ingcindezi yesistimu ikhuphuka, isidingo sokugeleza sizokwehla. Ngalesi sikhathi, i-valve yokusiza ivuliwe, ukuze ukugeleza okweqile kugeleze kubuyele ku-tank, ukuqinisekisa ukuthi i-valve yokusiza i-inlet pressure, okungukuthi, ukucindezela kokuphuma kwepompo kuhlala njalo (i-valve port ivame ukuvulwa ngokushintshashintsha kwengcindezi) . Izingxenye ezikwazi ukukhiqiza umsindo kalula kumadivayisi asebenza ngogesi ngokuvamile zibhekwa njengamaphampu namavalvu, futhi amavalvu alawulwa kakhulu amavalvu okusiza kanye namavalvu aqondisayo kagesi. Ziningi izinto ezibanga umsindo. Umsindo we-valve yokukhulula unezinhlobo ezimbili: umsindo wejubane nomsindo wemishini. Umsindo wejubane lomsindo ubangelwa ikakhulukazi ukudlidliza kwamafutha, i-cavitation kanye nokushaqeka kwe-hydraulic. Umsindo wemishini ubangelwa ikakhulukazi umthelela nokungqubuzana kwezingxenye ku-valve.