camshaft yana ɗaya daga cikin mahimman sassan injin. Babban jikin camshaft shine sandar silinda mai kusan tsayi ɗaya da rukunin Silinda. Akwai kyamarori da yawa akansa don fitar da bawuloli. Sabili da haka, babban aikin camshaft shine sarrafa budewa da rufewa na bawul.
Matsakaicin lamba tsakanin cam da tappet yana da girma sosai, kuma saurin zamewar dangi shima yana da girma sosai, don haka lalacewa na cam ɗin yana aiki mafi tsanani. Dangane da wannan yanayin, camshaft journal da cam yana aiki saman ya kamata su sami daidaiton girman girman girman, ƙananan ƙarancin ƙasa da isasshen ƙarfi, da juriya mai ƙarfi da lubrication mai kyau.

Matsalolin gama gari

Kasawar gama gari na camshafts sun haɗa da lalacewa mara kyau, ƙarar hayaniya, da karyewa. Alamun rashin lalacewa sau da yawa suna faruwa kafin amo da karyewar al'ada.
(1) camshaft yana kusan ƙarshen tsarin lubrication na injin, don haka yanayin lubrication ba shi da kyakkyawan fata. Idan famfon mai ba shi da isasshen iskar man fetur saboda yawan amfani da lokaci da sauransu, ko kuma an toshe hanyar mai mai mai mai kuma man mai ba zai iya isa wurin camshaft ba, ko kuma ƙarar karfin jujjuyawar abin da ke ɗaure hular ya yi girma sosai kuma mai mai ya yi yawa. mai ba zai iya shiga ratar camshaft ba, zai haifar da lalacewa mara kyau na camshaft.
(2) Rashin lalacewa na camshaft na al'ada zai sa ratar da ke tsakanin camshaft da wurin zama ya karu, kuma camshaft zai fuskanci motsi axial lokacin da yake motsawa, yana haifar da hayaniya mara kyau. Rashin lalacewa kuma zai haifar da rata tsakanin cam ɗin tuƙi da tappet na'ura mai aiki da karfin ruwa don haɓaka. Lokacin da aka haɗa cam tare da tappet na hydraulic, wani tasiri zai faru, wanda zai haifar da hayaniya mara kyau.
(3) camshaft wani lokaci yana da kasawa mai tsanani kamar karaya. Dalilan da suka fi dacewa su ne fashewar ruwa mai tsafta ko lalacewa mai tsanani, matsanancin matsi mara kyau, ƙarancin ingancin camshaft, da fashewar kayan aiki na camshaft.
(4) A wasu lokuta, gazawar camshaft yana faruwa ne saboda dalilai na mutum, musamman ma lokacin da camshaft ɗin ba a kwance shi da kyau ba tare da haɗawa lokacin da aka gyara injin. Misali, lokacin cire hular camshaft, yi amfani da guduma ko screwdriver don matsa lamba, ko kuma lokacin shigar da hular, matsayin madaidaicin bai yi daidai da wurin zama ba, ko maƙarƙashiyar jujjuyawar ƙugiya ta ɗaure. hular ɗaukar nauyi yayi girma da yawa. Lokacin shigar da murfin ɗaukar hoto, kula da kibiya mai jagora da lambar matsayi a saman murfin ɗaukar hoto, kuma yi amfani da maƙarƙashiya mai ƙarfi don ƙara ƙarar murfin ɗaukar hoto daidai da ƙayyadaddun juzu'i.