Izixhobo ze-excavator SK200-5 excavator engundoqo yokulawula ivalve yokhuseleko YN22V00002F1

Kwimveliso yolwakhiwo lwemihla ngemihla, i-excavator ngumatshini wokwakha osetyenziswa ngokuqhelekileyo, osetyenziswa ngokubanzi kwisiseko sokumbiwa kwezakhiwo zezindlu kunye nokucoca emva kokugqitywa, ukubekwa kwemibhobho yasezidolophini, ukwakhiwa kokugcinwa kwamanzi efama kunye nezinye izihlandlo, kunye neenzuzo zokwakhiwa okuguquguqukayo kunye nokuphakama okuphezulu. ukusebenza kakuhle. I-Excavator ngokuqhelekileyo iqulunqwe isixhobo esisebenzayo, isixhobo esijikelezayo, i-cab, isixhobo sokuhamba kunye ne-hydraulic control system, engenakuphepheka kwinkqubo yokulawula i-hydraulic ukusebenzisa i-valve yokunceda, i-valve yokunceda kwinkqubo ye-hydraulic idlala indima enkulu yoxinzelelo oluqhubekayo kunye ukhuseleko lokhuseleko. Okwangoku, i-valve yokunceda esetyenziswe kwi-excavator yi-valve yokunceda i-pilot, njengoko kubonisiwe kwi-Figure 1 kunye ne-Figure 2. Ikakhulu yenziwe ngokuphakamisa intloko ye-1, i-valve core 2, i-valve engundoqo 3, i-valve core 4, uxinzelelo olulawula intwasahlobo. I-5 kunye nomkhono wevalve yokulinga 6. Intloko ephakamisayo, umkhono wevalve engundoqo kunye nomkhono wevalve yomqhubi wenqwelo-moya zibonelelwe ngemingxuma, kwaye i-oyile yoxinzelelo ingena kumngxuma ongundoqo wevalve ngomngxuma omanzi wentloko ephakamisayo kwaye isebenze kumbindi wevalve yokulinga. Xa uxinzelelo lwenkqubo lungaphantsi koxinzelelo lokuvula i-spool yokuqala ye-pilot, i-valve ye-pilot ikwimeko evaliweyo, kwaye iingcinezelo zangaphakathi nangaphandle ze-spool eziphambili zilingana. Ngenxa yokwahlukana kweendawo zangaphakathi nangaphandle, i-spool enkulu ihlala ivaliwe phantsi kwesenzo soxinzelelo lwe-liquid; Xa isixokelelwano soxinzelelo sikhulu kunoxinzelelo lokuvula lwe-spool yevalve yokulinga, i-spool yevalve yokulinga ityhalwa kude yi-oyile yoxinzelelo, kwaye i-oyile yoxinzelelo ibuyela etankini ngomngxuma womkhono wevalve yokulinga kunye nomngxuma ongundoqo wevalve. Ngeli xesha, ukuhla koxinzelelo kuveliswa xa ulwelo luhamba kumngxunya wentloko yokuphakamisa, ukuze uxinzelelo lwangaphakathi lwe-valve spool lube lukhulu kunoxinzelelo lwegumbi langaphandle, elityhala i-spool yevalve enkulu ukuba ivule, kwaye Ioyile yolwelo oluqhutywa ngamanzi ibuyela etankini ngomngxuma ongundoqo wevalve. Xa uxinzelelo lwenkqubo lwehla ukuya ngaphantsi koxinzelelo lokuvula umqhubi we-pilot, i-pilot spool ivala, kwaye xa ukuhlukana koxinzelelo phakathi kwangaphakathi nangaphandle kwe-spool enkulu kuncinci, ukuvulwa kuvaliwe phantsi kwesenzo sokusetha kabusha kwentwasahlobo. Nangona kunjalo, ekusetyenzisweni okwenyani, kufumaniseke ukuba xa ivalve yoncedo engentla isetyenziswa, undoqo wevalve yokulinga kufuneka uvule kwaye uvale rhoqo, kwaye ukuvulwa nokuvala ukusebenza kwevalve yokulinga kugqiba ukusebenza kwevalve yoncedo, ngoko ke inxalenye Umngxuma wevalve yesivalo sokulinga ukudibana necone engundoqo yevalve ibaluleke kakhulu. Ukuze kuqinisekiswe ukuzinza kokusebenza kwevalve yoncedo, indawo yomkhono wevalve yokulinga isoloko ifuna ukuchaneka okuphezulu komatshini. Umngxuma we-valve ye-valve inde, umkhono wevalve yomqhubi kwindawo yokucutshungulwa kunye nokuvavanya kunzima kakhulu, ukuchaneka kokucubungula kunzima ukuqinisekisa, okubangelwa ukusebenza kwevalve yomqhubi ayinakuqinisekiswa ngokufanelekileyo, ukuzinza kwevalve yokunceda kukhulu kakhulu. echaphazelekayo, ukongeza, umbindi wevalve engundoqo kunye nomkhono wevalve ophambili phakathi kwe-coaxiality ixhomekeke ikakhulu kwisikrufu somkhono wevalve yokulinga ukuqinisekisa, ngenxa yokuba umkhono wevalve yokulinga mde, ukutenxa okuncinci kokumiswa kwentambo kuya kuchaphazela ukulingana kwevalve. I-spool engundoqo kunye nomkhono wevalve engundoqo, okukhokelela ekutywinweni okulambathayo kunye nokuvuza.