Karyewar crankshaft yawanci yana farawa ne daga ƙarami mafi ƙaranci, kuma mafi yawan tsagewa da karaya suna faruwa ne a ɓangaren haɗin gwiwa na crank hannu a kusurwoyi masu zagaye na jaridar sanda mai haɗawa na kan silinda ko ƙarshen Silinda. Yayin da ake aiki, tsagewar yana faɗaɗa a hankali kuma ya karye ba zato ba tsammani lokacin da ya kai wani matsayi. Sau da yawa ana samun ɓangaren launin ruwan kasa a saman karyewar, wanda a bayyane yake tsohon tsaga ne, kuma tsarin mai sheki da sheki alama ce ta karyewar kwatsam daga baya. Bari mu kalli dalilin karyewar crankshaft tare da kowa a yau! Matsalar karyewar injin crankshaft

1. Kusurwoyin da aka zagaya a bangarorin biyu na mujallar crankshaft sun yi ƙanana sosai

Lokacin da ake niƙa ƙwanƙwasa, injin niƙa ya kasa sarrafa fillet ɗin axial na crankshaft daidai. Bugu da ƙari ga mashin ɗin mashin ɗin, radius ɗin fillet shima ƙanƙanta ne. Sabili da haka, lokacin da crankshaft ke aiki, babban damuwa yana faruwa a fillet, kuma an rage raguwa. Rayuwar gajiya.

2. Kashe na crankshaft main jarida axis

Axis na babban jarida na crankshaft ya karkata, wanda ke lalata ma'auni mai mahimmanci na taron crankshaft. Lokacin da injin diesel ke aiki da sauri, yana haifar da ƙarfi mara ƙarfi, wanda ke sa crankshaft ya karye.

3. Gasar sanyi ta crankshaft ta yi girma da yawa

Bayan dogon amfani da crankshaft, musamman bayan faruwar tile konewa ko silinda ramming hatsarori, manyan lankwasa zai faru, kuma ya kamata a cire domin sanyi latsa gyara. Saboda lalacewar filastik na ƙarfe na ciki na crankshaft a lokacin daidaitawa, za a haifar da ƙarin ƙarin damuwa, don haka rage ƙarfin crankshaft. Idan gasar sanyi ta yi girma sosai, crankshaft na iya lalacewa ko fashe. Irin wannan crankshaft zai karye jim kaɗan bayan amfani da shi.

4. Ƙaƙwalwar tashi ta yi sako-sako

Idan kusoshi masu saukar ungulu sun yi sako-sako, taron crankshaft zai rasa ma'auninsa na asali, kuma injin dizal zai girgiza bayan ya gudu, kuma za a samar da wani babban karfi na inertial a lokaci guda, wanda zai sa crankshaft ya gaji kuma cikin sauki ya karye. karshen wutsiya.

5. ingancin crankshaft kanta ba shi da kyau

Kada ku sayi crankshafts don arha, dole ne ku saya su daga tashoshi na yau da kullun. Ya kamata a duba a hankali kafin shigarwa, kuma idan akwai wata matsala, ya kamata a canza shi ko mayar da shi cikin lokaci. Bugu da kari, lokacin da injin ya yi overhauled, ya kamata a duba crankshaft ta hanyar duban maganadisu ko narkar da mai. Idan farfajiyar mujallar tana da ƙwanƙwasa radial ko tsagewar axial da ke miƙewa zuwa kusurwoyi masu zagaye na kafada, ba za a ƙara yin amfani da ƙugiya ba.

6. Daban-daban axis na babban hali

A lokacin da hada da crankshaft, idan cibiyar Lines na babban bushes a kan Silinda block sun bambanta da axis, da dizal engine zai zama mai yiwuwa ga daji kone da axle rike hatsarori bayan aiki, da crankshaft kuma zai karye a karkashin karfi mataki na matsananciyar damuwa.

7. Ƙimar taro na crankshaft ya yi girma da yawa

Idan madaidaicin izinin da ke tsakanin mujallar crankshaft da daji mai ɗaukar nauyi ya yi girma sosai, ƙwanƙwasa za ta yi tasiri da gandun daji bayan injin dizal yana aiki, amma gami zai faɗi kuma daji zai ƙone ya riƙe sandar, kuma crankshaft zai yi tasiri. kuma a sauƙaƙe lalacewa.

8. Lokacin samar da mai ya yi da wuri ko kuma adadin man kowane Silinda bai yi daidai ba

Idan lokacin samar da famfo mai allurar mai ya yi da wuri, fistan zai ƙone kuma ya yi aiki a gaban babban mataccen cibiyar, wanda zai haifar da injin dizal ya ƙwanƙwasa kuma crankshaft ɗin zai yi tasiri ta hanyar matsananciyar damuwa. Idan samar da mai na kowane Silinda bai yi daidai ba, ƙarfin kowace jarida na crankshaft zai zama rashin daidaituwa saboda rashin daidaituwa na fashewar kowane Silinda, wanda zai haifar da gajiya da tsagewa.

9. Mara kyau crankshaft lubrication

Idan famfon mai ya yi tsanani sosai, tashar mai mai lubricating ta ƙazantu, kuma magudanar ruwa ba su da kyau, man ba zai wadatar ba kuma man zai ragu, sakamakon gazawar fim ɗin mai na yau da kullun tsakanin crankshaft da crankshaft. dauke da bushes, wanda zai haifar da bushewar gogayya da haifar da konewar bushes da sanduna. , Karya crankshaft da sauran manyan hatsarori.

10. Crankshaft fracture lalacewa ta hanyar rashin aiki mara kyau

Idan ma'aunin ya yi tsayi da yawa ko ƙasa da ƙasa, ana yawan yin birki ko yin lodi na dogon lokaci yayin aiki, ƙugiyar za ta lalace ta hanyar wuce gona da iri ko nauyin tasiri. Bugu da kari, crankshaft kuma yana da saurin karyewa lokacin da injin dizal ya samu hatsari kamar gudu, ramming da fitar da bawul. Ganewa da warware matsalar karaya na crankshaft inji

Don hana crankshaft karye, ana iya ɗaukar matakai masu zuwa yayin kiyayewa:

Da farko, kafin a gyara crankshaft, a hankali duba crankshaft don tsagewa, kula da hankali na musamman ga ɓangaren juzu'i na fillet, idan akwai raguwa, ya kamata a cire shinge. A lokacin da ake niƙa jaridar, ajiye wani takamaiman radius na fillet tsakanin jaridar da hannun ƙugiya. Kada a rage girman fillet ɗin ba da gangan ba. Kula da ƙarshen farfajiyar fillet, in ba haka ba zai haifar da damuwa da damuwa kuma ya sa crankshaft ya karye.

Abu na biyu, lokacin da suturar girman mujallar ta wuce iyaka, ya zama dole a zaɓi hanyar da ba ta da tasiri a kan ƙarfin gajiyar jarida don murmurewa. Rage ƙarfi ya fi girma.

Sa'an nan, madaidaicin sharewa da ƙarewar kowane mujalla da abin da aka ɗauka ya kamata su kasance daidai da ma'auni. Idan sharewa ya yi girma, yana da sauƙi don lalata crankshaft saboda tasiri. Idan izinin ya yi ƙanƙanta, ƙila za a iya karye ƙugiya saboda riƙon shaft. Dangane da haɗuwa, dole ne a daidaita lokacin kunnawa daidai, ba da wuri ba ko kuma ja da baya, kula da ma'auni na crankshaft, flywheel da kama.