Karaya na crankshaft yawanci yana farawa ne daga ƙarami mafi ƙaranci, kuma mafi yawan tsagewar suna bayyana a ɓangaren haɗin gwiwar hannu a fillet ɗin jarida mai haɗawa na kan Silinda ko ƙarshen Silinda. A lokacin aikin, tsagewar yana faɗaɗa a hankali kuma ba zato ba tsammani ya karye idan ya kai wani matakin. Sau da yawa ana samun ɓangaren launin ruwan kasa a saman da ya karye, wanda ba shakka tsoho ne, kuma kyallen da ke kyalli da kyalli ita ce alamar da ta samu karyewar kwatsam daga baya. A yau, bari mu ga abin da ke sa crankshaft ya karye!
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 jarida daidai. Bugu da ƙari ga sarrafa camber mai ƙazanta, radius na fillet ya yi ƙanƙara, don haka an haifar da babban damuwa a cikin fillet lokacin da crankshaft ke aiki, kuma an gajarta crankshaft. rayuwa gajiya.
2. Kashe na crankshaft main jarida axis
Axis na crankshaft babban jarida an kashe shi, wanda ke lalata ma'auni mai ƙarfi na taron crankshaft. Lokacin da injin ke aiki da sauri, ana haifar da ƙarfi mai ƙarfi mai ƙarfi, wanda ke haifar da crankshaft ya karye.
3. Gasar sanyi na crankshaft yayi girma da yawa
Za a lanƙwasa ƙwanƙwasa sosai bayan an daɗe ana amfani da ita, musamman bayan haɗarin kona fale-falen fale-falen buraka ko bugun silinda, sannan a cire shi kuma a gyara shi ta hanyar latsa sanyi. Saboda nakasar filastik na ƙarfe a cikin 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, kuma wannan crankshaft zai karye nan da nan bayan shigarwa.
4. Ƙaƙwalwar tashi ta yi sako-sako
Idan kusoshi na flywheel ya kasance sako-sako, taron crankshaft zai rasa daidaitaccen ma'auni na asali, kuma injin zai yi rawar jiki bayan ya gudu, kuma a lokaci guda, za a haifar da babban ƙarfin inertial, wanda zai haifar da gajiyar crankshaft da sauƙi karyewa a cikin injin. karshen baya.
5. Rashin ingancin crankshaft kanta
Sayen crankshafts bai kamata ya zama mai haɗama don arha ba, kuma dole ne a saya daga tashoshi na yau da kullun. Hakanan yakamata a duba a hankali kafin shigarwa, idan an sami matsala, sai a canza shi ko a mayar da shi cikin lokaci. Bugu da kari, lokacin da injin ya yi overhauled, crankshaft ya kamata a sa ido ga gano aibi na maganadisu ko duban bugun mai. Idan akwai fashewar radial ko axial da ke shimfiɗa zuwa fillet ɗin kafada a saman mujallar, ba za a iya sake amfani da crankshaft ba.
6. Babban daji ya bambanta da shaft
Lokacin da aka haɗa crankshaft, idan tsakiyar layin manyan bushes ɗin da ke kan shingen silinda ba su kasance a kan gadi ɗaya ba, haɗarin kona bishiyoyin da ke ɗauke da igiya zai iya faruwa cikin sauƙi bayan aikin injin, kuma crankshaft shima zai karye. karkashin karfi mataki na m danniya.
