Ƙwaƙwalwar ƙwanƙwasa, ko injin ƙwanƙwasa na mota, injin magudanar ruwa ko kuma injin famfo na masana'antu, ana yin aikin haɗe-haɗe na lankwasawa da musanya nauyin torsion yayin aikin juyawa. Sassan haɗari na crankshaft, musamman ma fillet ɗin canzawa tsakanin jarida da crank Wani lokaci, ƙwanƙwasa ƙwanƙwasa yana raguwa saboda yawan damuwa.

Sabili da haka, yanayin sabis yana buƙatar crankshaft don samun isasshen ƙarfi don tabbatar da cewa crankshaft ba ya karye yayin aiki. A halin yanzu, yin amfani da harbi peening don canza gajiya juriya na crankshafts an yi amfani da ko'ina a cikin fadi da kewayon aikace-aikace, da kuma sakamako ne quite gamsarwa.

Idan aka kwatanta da lahani na tsarin mirgina na gargajiya, saboda iyakancewar fasahar sarrafa crankshaft, ƙusoshin kowace mujalla suna da wuyar daidaitawa da abin nadi, wanda galibi yakan haifar da yanayin ƙugiya na sasanninta, da crankshaft bayan mirgina. ya lalace sosai, ba yadda ya kamata. Hanyar harbin leƙen asiri shine a yi amfani da pellet tare da diamita mai ƙarfi mai sarrafawa da takamaiman ƙarfi don samar da rafi na pellet ƙarƙashin aikin iska mai saurin gudu kuma a ci gaba da fesa su akan saman ƙarfe na crankshaft, kamar guduma tare da ƙananan ƙananan ƙididdiga. guduma don yin saman crankshaft Samar da nakasar filastik mai ƙarfi sosai kuma ta samar da aikin sanyi mai tauri. A takaice dai, saboda crankshaft yana fuskantar wasu rundunonin yankan injuna daban-daban yayin sarrafawa, rarraba damuwa a samansa, musamman ma canjin sashi na crankshaft, yana da matukar rashin daidaituwa, kuma yana fuskantar matsin lamba yayin aiki, don haka. yana da sauƙi Danniya lalata yana faruwa kuma rayuwar gajiyar crankshaft ta ragu. The harbi peening tsari shi ne gabatar da wani pre-matsi danniya zuwa biya diyya da tensile danniya da sashi zai samu a nan gaba zagayowar aiki, game da shi inganta gajiya juriya da lafiya sabis rayuwa na workpiece.

Bugu da kari, crankshaft ƙirƙira blanks ana yin su kai tsaye daga karfe ingots ko ƙirƙira daga karfe birgima mai zafi. Idan tsarin ƙirƙira da jujjuyawar ba a sarrafa su yadda ya kamata ba, sau da yawa za a sami rarrabuwar kawuna, ƙananan hatsi na ainihin tsarin, da rarraba tsarin cikin gida mara ma'ana a cikin guraben. Kuma sauran lahani na ƙarfe da ƙungiyoyi, don haka rage rayuwar gajiyar crankshaft, tsarin ƙarfafawa zai iya inganta tsarin kuma yana haɓaka aikin gajiyarsa sosai.