Crankshaft shine babban ɓangaren jujjuyawar injin. Bayan an shigar da sandar haɗi, za ta iya ɗaukar motsi sama da ƙasa (maimaitawa) na haɗin haɗin kuma juya shi zuwa motsi (juyawa).

Yana da muhimmin sashi na injin. Abun sa an yi shi da ƙarfe tsarin tsarin carbon ko ƙarfe ductile. Yana da sassa biyu masu mahimmanci: babban jarida, jarida mai haɗawa (da sauransu). An shigar da babban mujallolin a kan shingen Silinda, jaridar sanda mai haɗawa tana haɗa tare da babban rami na ƙarshen sandar haɗin gwiwa, kuma ƙaramin ƙarshen ramin haɗin haɗin yana haɗa da piston Silinda, wanda shine tsarin crank-slider na yau da kullun. .

Fasahar sarrafa Crankshaft

Kodayake akwai nau'ikan crankshafts da yawa kuma wasu bayanan tsarin sun bambanta, fasahar sarrafawa kusan iri ɗaya ce.


Gabatarwar babban tsari

(1) External milling na crankshaft babban jarida da kuma haɗa sanda jarida A lokacin da aiki na crankshaft sassa, saboda da tasiri na tsarin na Disc milling abun yanka kanta, da yankan baki da workpiece ne ko da yaushe a intermittent lamba tare da workpiece, da kuma akwai tasiri. Sabili da haka, ana sarrafa hanyar haɗin yanar gizo a cikin dukkanin tsarin yankan kayan aikin injin, wanda ke rage girgizar da ke haifar da motsin motsi yayin aikin injin, don haka inganta daidaiton mashin ɗin da rayuwar sabis na kayan aiki.

(2) Nika babban jarida na crankshaft da haɗa jaridan sanda Hanyar bin diddigin yana ɗaukar tsakiyar layin babban jarida a matsayin cibiyar juyawa, kuma yana kammala aikin niƙa na crankshaft ɗin haɗin gwiwar sanda a cikin ɗaki ɗaya (ana kuma iya amfani da shi don babba). niƙan mujallu), niƙa Hanyar yankan mujallun haɗin gwiwar sanda ita ce sarrafa abincin injin niƙa da haɗin haɗin axis biyu na rotary. motsi na workpiece ta hanyar CNC don kammala ciyar da crankshaft. The tracking Hanyar rungumi dabi'ar clamping daya da kuma kammala nika na crankshaft babban jarida da kuma a haɗa sanda jarida bi da bi a kan wani CNC nika inji, wanda zai iya yadda ya kamata rage kayan aiki halin kaka, rage sarrafa halin kaka, da kuma inganta aiki daidaito da kuma samar da inganci.

(3) Babban jaridar crankshaft da haɗa kayan aikin fillet ɗin na'ura mai jujjuyawa ana amfani da shi don haɓaka ƙarfin gajiyar crankshaft. Bisa ga kididdigar, rayuwar ductile baƙin ƙarfe crankshaft bayan fillet mirgina za a iya ƙara da 120% zuwa 230%; rayuwar jabun karfe crankshafts bayan fillet mirgina za a iya ƙara da 70% zuwa 130%. Ƙarfin jujjuyawar jujjuyawar ya fito ne daga jujjuyawar crankshaft, wanda ke motsa rollers a cikin mirgina kai don juyawa, kuma ana aiwatar da matsa lamba na rollers ta silinda mai.