I-Excavator loader main gun relief valve 708-1W-04850

Njenge-valve yokuthula njengesilawuli sokucindezela esikude:

I-valve yokulawula i-multistage ephezulu nephansi isetshenziswa njenge-valve yokulandelana ukukhiqiza ukucindezela emuva (intambo kumjikelezo kawoyela wokubuya).

I-valve yokusiza umshayeli inezingxenye ezimbili: i-valve eyinhloko kanye ne-pilot valve. Amavalvu okushayela ayafana namavalvu okusiza asebenza ngokuqondile, kodwa ngokuvamile amavalvu e-cone (noma ama-ball valve) ayizakhiwo zezihlalo ezimise okwezihlalo. I-valve eyinhloko ingahlukaniswa ibe yisakhiwo esisodwa esigxilile, isakhiwo esigxilile ezimbili kanye nesakhiwo se-concentric ezintathu.

Ngemuva kokuthi i-PC200-6 i-excavator egcwele amanzi amaningi iqalisiwe, idivayisi esebenzayo ingabona izenzo ezihlukahlukene, kodwa iphampu enkulu ithumela umsindo ongajwayelekile.

Ngokusho kokuhlaziywa kokuqala, kukholakala ukuthi iphampu ine-vacuumed noma umjikelezo kawoyela uxutshwe nomoya. Ngakho-ke, qala ngokulungisa idivayisi esebenzayo endaweni yokuthola izinga likawoyela, futhi uhlole ukuthi izinga likawoyela lethangi le-hydraulic lingaphansi kwezinga eliphansi lethagethi kawoyela, okuyisimo sokushoda kukawoyela. Ngemva kokubuza umshayeli, indandatho yokuvala yepayipi likawoyela elinomfutho ophezulu oholela ekamelweni elingenazintambo le-cylinder yenduku yebhakede yashintshwa ngenxa yokuvuza kwamafutha ngesikhathi somsebenzi, kodwa izinga likawoyela alizange lihlolwe ngesikhathi ngemva kokushintshwa. Ngakho-ke, okokuqala, ithangi likawoyela we-hydraulic lifakwa ezingeni likawoyela elijwayelekile, futhi ukuhlolwa kubonisa ukuthi umsindo ongavamile uyancipha, kodwa usekhona; Khona-ke, nge-valve yokukhipha ipompo eyinhloko eya empompini enkulu ngemva kokuhlolwa kabusha, kutholakala ukuthi umsindo ongajwayelekile usekhona, okubonisa ukuthi umsindo awukwazi ukubangelwa ngokuphelele ukumuncwa kwepompo.

Okulandelayo, isihlungi sokumunca uwoyela nesihlungi sokubuyisela uwoyela sethangi le-hydraulic kuyahlolwa, futhi kutholakale ukuthi isihlungi sokumunca uwoyela simnyama futhi kunodaka lwamafutha, futhi izinhlayiya zensimbi ezinsundu zinamathele kusihlungi sokubuyisela uwoyela. Uma kucatshangelwa ukuthi kunezinhlayiya zensimbi ezinsundu ezinamathele kusihlungi sikawoyela obuyayo, uwoyela wepompo eyinhloko uyakhululwa futhi uhlolwe, futhi kutholakala ukuthi kukhona nezinhlayiya zensimbi ezinsundu; Ngesikhathi esifanayo, lapho iphampu enkulu ihlakazwa futhi ihlolwa, kwatholakala ukuthi i-piston, i-valve plate kanye ne-swash plate yayingonakalisiwe, futhi isicathulo se-slipper sasigqokile. Ngemuva kokushintshwa kwayo, umhlangano wenziwa ngokuhambisana ngokuqinile nezidingo, isistimu ye-hydraulic yahlanzwa futhi amafutha ashintshwa, futhi lapho umshini wokuhlola uqalwa futhi, umsindo ongavamile wanyamalala futhi iphutha laqedwa.

Ngaphansi kwezimo ezijwayelekile, izimbangela zomsindo ongajwayelekile ozungeze iphampu eyinhloko zimi kanje:

Uwoyela we-hydraulic onganele wenza ukuthi iphampu enkulu ingabi nalutho; Umoya uxubene emgqeni wokumunca; Ibhulokhi yesihlungi sokumunca iholela ekumunceni kwepompo okuyinhloko; Ukuguga kwangaphakathi kwepompo eyinhloko kubangela umsindo ongajwayelekile ekusebenzeni kwepompo eyinhloko.

Kulesi simo, umsindo ongavamile ubangelwa uwoyela we-hydraulic onganele kanye nokuguga kwesilayidi ngaphakathi kwepompo enkulu. Isizathu siwukuthi izinga likawoyela alihlolisiswa ngesikhathi ngemva kokufakwa esikhundleni sophawu, okubangela uwoyela we-hydraulic onganele, ukuze iphampu eyinhloko ikhiqize into yokumunca; Lapho uwoyela oxutshwe nomoya ugeleza empompini eyinhloko, isiliphu asikwazi ukuntanta noma ukuntanta ngendlela enganele ngezinye izikhathi, okuholela ekwakhekeni kwefilimu kawoyela wokugcoba enhle phakathi kwesilipha nepuleti lokugeza, okwenza isiliphu siguge futhi ekugcineni sibangele. umsindo ongajwayelekile ekusebenzeni kwepompo eyinhloko