Umehluko phakathi kwevalve yokulinganisa kanye ne-two-way hydraulic lock
2024-02-06Uhlolojikelele
Izingidi ezinama-hydraulic ama-bi-directional kanye namavalve okulinganisa angasetshenziswa njengezingxenye zokukhiya ezimweni ezithile ukuze kuqinisekiswe ukuthi idivayisi esebenzayo ngeke ishelele, isheshise kakhulu noma inyakaze ngenxa yezizathu zangaphandle njengesisindo sayo.
Nokho, ngaphansi kwezimo ezithile zokulayisha isivinini, azikwazi ukusetshenziswa ngokushintshana. Ake sikhulume ngeminye yemibono yombhali mayelana nezakhiwo zemikhiqizo emibili.
Ilokhi ye-hydraulic yezindlela ezimbili iyingxenye engu-No. 2 kwesokudla samavalvu endlela eyodwa alawulwa ngamanzi asetshenziswa ndawonye (bona uMdwebo 1). Ivamise ukusetshenziswa kumasilinda kawoyela athwala umthwalo noma amasekhethi kawoyela enjini ukuze kuvinjwe isilinda esisebenza ngaphansi kwamanzi noma imotor ukuthi ingasheleli phansi ngaphansi kokwenziwa kwezinto ezisindayo. Uma isenzo sidingeka, uwoyela kufanele uhlinzekwe kwenye isekethe, futhi i-valve yendlela eyodwa kufanele ivulwe ngesekhethi kawoyela yokulawula kwangaphakathi ukuze isekethe kawoyela isebenze Kuphela uma ixhunyiwe lapho isilinda esisebenza ngaphansi kwamanzi noma i-motor.
Ngenxa yesakhiwo semishini ngokwayo, ngesikhathi sokuhamba kwe-cylinder ye-hydraulic, isisindo esifile somthwalo sivame ukubangela ukulahlekelwa okusheshayo kokucindezela ekamelweni lokusebenza eliyinhloko, okuholela ekushayweni. Lesi simo sivame ukwenzeka emishinini elandelayo evamile:
Isilinda esibekwe mpo emshinini wokucindezela we-hydraulic wamakholomu amane;
Isilinda sesikhunta esiphezulu semishini yokwenza izitini;
Isilinda sikawoyela esizulazula emuva naphambili emishinini yengilazi;
I-Swing cylinder yemishini yokwakha;
i-winch motor ye-hydraulic crane;
Ilokhi ye-hydraulic esetshenziswa kakhulu yivalvu yokuhlola estakiwe. Ake sibheke isigaba sayo esiphambene kanye nohlelo lokusebenza olujwayelekile.
Lapho isisindo siwela ngesisindo saso, uma uhlangothi lwamafutha okulawula lungagcwaliswa ngesikhathi, kuzokwenziwa i-vacuum ohlangothini lwe-B, okubangela ukuthi i-piston yokulawula ihoxise ngaphansi kwesenzo sentwasahlobo, esizovala indlela eyodwa. i-valve, bese uqhubeka nokuhlinzeka ngamafutha, okwenza igumbi lokusebenza Ukucindezela kuyakhuphuka bese kuvula i-valve yendlela eyodwa. Izenzo ezinjalo zokuvula nokuvala njalo zizobangela umthwalo ukuthi uqhubeke kancane kancane phakathi nenqubo yokuwa, okuholela kumthelela omkhulu nokudlidliza. Ngakho-ke, izingidi ezimbili ze-hydraulic ngokuvamile azinconywa ngezimo zejubane eliphezulu kanye nomthwalo osindayo, kodwa zivame ukusetshenziswa. Ifanele izihibe ezivaliwe ezinesikhathi eside sokusekela kanye nesivinini esiphansi sokunyakaza.
Ngaphezu kwalokho, uma ufuna ukuxazulula le nkinga, ungakwazi ukwengeza i-valve ye-throttle ohlangothini lokubuya kwamafutha ukuze ulawule isivinini esiwayo ukuze izinga lokugeleza kwepompo lamafutha likwazi ukuhlangabezana ngokugcwele nezidingo zokucindezela zamafutha okulawula.
Izici zesakhiwo se-valve yokulinganisa:
I-Counterbalance valve, ebizwa nangokuthi i-speed limit lock (bheka uMdwebo 3), iyivalvu elawulwa ngaphandle futhi evuzayo ngaphakathi elandelanayo yendlela eyodwa. Iqukethe i-valve yendlela eyodwa kanye ne-valve yokulandelana esetshenziswa ndawonye. Kumjikelezo we-hydraulic, ingavimba isilinda noma i-motor ye-hydraulic. Amafutha kumjikelezo kawoyela abangela isilinda se-hydraulic
Ikhava yesiphetho esingu-1; 2, 6, 7-isihlalo sasentwasahlobo; 3, 4, 8, 21-entwasahlobo;
5, 9, 13, 16, 17, 20 - indandatho yokuvala 10 - i-poppet valve; 11 - i-valve core;
- Umkhono we-valve engu-14; 15-control piston; Ikhava yembobo engu-18 enekhanda elingu-19;
22-Indlela eyodwa valve core; 23-Valve umzimba
Umfanekiso 3 Umdwebo wesakhiwo wevalvu yokulinganisa
Noma injini ngeke ishelele phansi ngenxa yesisindo somthwalo, futhi izosebenza njengesikhiya ngalesi sikhathi. Lapho i-hydraulic cylinder noma i-motor idinga ukunyakaza, uketshezi ludluliselwa kwesinye isifunda samafutha, futhi ngesikhathi esifanayo, isifunda samafutha sangaphakathi se-valve yebhalansi silawula ukuvulwa kwe-valve yokulandelana ukuxhuma isifunda futhi uqaphele ukunyakaza kwayo. Njengoba isakhiwo se-valve yokulandelana ngokwaso sihlukile kunesokukhiya kwe-hydraulic lock, ingcindezi ethile yangemuva ngokuvamile isungulwa kumjikelezo wokusebenza lapho isebenza, ukuze umsebenzi oyinhloko we-hydraulic cylinder noma i-motor ngeke ukhiqize ukucindezela okungalungile. ngenxa yesisindo sayo kanye nokushelela ngesivinini esikhulu, ngakho-ke akukho mnyakazo oya phambili ozokwenzeka. Ukushaqeka nokudlidliza okufana nokhiye we-hydraulic lock.
Ngakho-ke, ama-valve ebhalansi ngokuvamile asetshenziswa kumasekhethi anesivinini esikhulu nomthwalo osindayo kanye nezidingo ezithile zokuzinza kwejubane.
Umfanekiso wesi-3 uyi-valve ephikisanayo enesakhiwo sepuleti, futhi ngezansi kunombono we-cross-sectional we-plug-in counterbalance valve.
Isiphetho
Ukuhlanganisa ukuhlaziywa kwesakhiwo se-valve yebhalansi kanye ne-two-way hydraulic lock, umbhali uncoma:
Endabeni yejubane eliphansi kanye nomthwalo okhanyayo onezidingo eziphansi ekuzinzeni kwesivinini, ukuze kuncishiswe izindleko, ukukhiya okumbili kwe-hydraulic kungasetshenziswa njengendlela yokuvala isifunda. Kodwa-ke, ezimeni zejubane eliphezulu nomthwalo osindayo, ikakhulukazi lapho izidingo zokuzinza kwejubane eliphezulu zidingeka, kufanele kusetshenziswe ilokhi ye-hydraulic lock. Uma usebenzisa i-valve yebhalansi njengengxenye yokukhiya, akumele ulandele ngokungaboni ukuncishiswa kwezindleko bese ukhetha ingidi ye-hydraulic lock, ngaphandle kwalokho izodala ukulahlekelwa okukhulu.
