Kodi mkono wa valve rocker ndi tappet ndi ziti?
Chida chodulira ma valve agalimoto ndi tappet ndi zinthu zofunika kwambiri pamakina a valve a injini yagalimoto, ndipo chilichonse chili ndi ntchito yakeyake.
Dzanja la valavu
Mphamvu ya valavu yodulira ndi gawo lofunika kwambiri pa makina a valavu ya injini, ntchito yake yayikulu ndikugwira ntchito ndi camshaft kuti iwonetsetse kuti valavu ikutsegulidwa ndi kutsekedwa nthawi yake, kuti amalize njira yolowera ndi kutulutsa mpweya. Mphamvu ya valavu ndi lever ya manja awiri yokhala ndi dzenje lapakati la shaft ngati fulcrum. Dzanja lalifupi lili ndi screw yosinthira valvu mbali imodzi, ndipo dzanja lalitali lili ndi nkhope yogwirira ntchito ya arc kuti ikankhire valvu .
Chopopera cha valavu
Ntchito yaikulu ya valavu yopopera ndikusamutsa kayendedwe ndi mphamvu ya camshaft kupita ku ndodo yopopera kapena valavu, ndikukankhira ndodo yopopera kapena valavu kuti igonjetse mphamvu ya kasupe wa valavu. Laputopu iyenera kupirira mphamvu ya mbali yomwe CAM imagwiritsa ntchito panthawi yogwira ntchito ndikuyisamutsa ku thupi kapena mutu wa silinda. Laputopu imatha kugawidwa m'magawo a makina ndi hydraulic, iliyonse ili ndi kapangidwe kake ndi ntchito yake:
Tapeti yamakina: nthawi zambiri imapangidwa ndi chitsulo chosakanikirana kapena chitsulo chosakanikirana chomwe chimatha kusweka bwino. Kapangidwe kake ndi kosavuta koma valavu iyenera kusinthidwa nthawi zonse.
Tappet ya hydraulic: Imachotsa yokha valavu popanda kusintha ndipo imachepetsa phokoso la transmission. Tappet ya hydraulic imapangidwa ndi thupi la tappet, plunger ndi kasupe wolipirira, ndi zina zotero, zomwe zimasinthidwa zokha ndi kupanikizika kwa mafuta ndi momwe kasupe amagwirira ntchito.
Zochitika zenizeni zogwiritsira ntchito ndi zabwino ndi zoyipa zake
Tappet yamakina: kapangidwe kosavuta, koma kamafunika kukonza nthawi zonse ndikusintha malo otseguka a valavu. Imagwira ntchito pazochitika zomwe sizifuna kukonza kwambiri.
Tappet ya hydraulic : kapangidwe kovuta koma kakhoza kusinthidwa zokha, kuchepetsa ntchito yokonza, koyenera kudalirika kwambiri komanso kufunika kwa phokoso pamalopo. Tappet ya hydraulic imasinthidwa yokha kudzera mu mphamvu ya mafuta ndi kasupe, zomwe zimatha kuchotsa kutseguka kwa valavu ndikuchepetsa phokoso la kutumiza.
Udindo wa mkono wa valve rocker ndi tappet ukuphatikizapo zinthu izi:
Udindo wa tappet
Ntchito yaikulu ya tappet ndi kusamutsa mphamvu ya camshaft kupita ku ndodo yokakamiza kapena ndodo ya valavu, ndikukankhira ndodo yokakamiza kapena valavu kuti igonjetse mphamvu ya kasupe wa valavu ndikusuntha. Nthawi yomweyo, kugogodako kumanyamulanso mphamvu zambali zomwe zimayendetsedwa ndi kuzungulira kwa camshaft. Tappet ikhoza kugawidwa m'mitundu iwiri: tappet wamba ndi tappet ya hydraulic:
Tappet wamba : kuphatikiza tappet ya bowa, tappet ya barrel ndi tappet yozungulira. Tappet wamba ndi zomangamanga zolimba ndipo sizingathe kuchotsa zokha valavu, kotero ndikofunikira kusintha valavu nthawi zonse.
Tappet ya hydraulic : imatha kuchotsa kutseguka kwa valavu ya injini, palibe chifukwa chosinthira kutseguka kwa valavu, ndipo imatha kuchepetsa phokoso la transmission ya makina a valavu ya injini. Tappet ya hydraulic imasintha yokha kutseguka kwa valavu kudzera mu kuthamanga kwa mafuta ndi momwe kasupe wolipirira amagwirira ntchito kuti atsimikizire kuti valavu ndi CAM zikulumikizana kwambiri.
Udindo wa mkono wa rocker
Ntchito yaikulu ya mkono wa rocker ndikupereka mphamvu kuchokera ku ndodo yopondereza kapena CAM kupita ku valavu mutasintha njira kuti mutsegule. Gulu la mkono wa rocker limaphatikizapo mkono wa rocker, shaft ya mkono wa rocker, mpando wothandizira, screw yosinthira clearance ya valve ndi zina. Zigawozi zimagwirira ntchito limodzi kuti zitsimikizire kutseguka ndi kutsekedwa kolondola kwa valavu, potero kuwongolera njira yolowera ndi kutulutsa mpweya ndikuwonetsetsa kuti injini ikugwira ntchito bwino.
Mfundo yeniyeni yogwirira ntchito
Injini ikagwira ntchito, crankshaft imayendetsa camshaft kuti izungulire kudzera mu njira yotumizira, ndipo CAM pa camshaft imakankhira ndodo yokakamiza kapena valavu kudzera mu tashet. Pamene gawo lokwezedwa la CAM likankhira motsutsana ndi tappet, tappet imasamutsa mphamvuyo kupita ku ndodo yokakamiza kapena valavu, ndikutsegula valavu. Ndi kuzungulira kwa CAM, valavu imatsekedwa pang'onopang'ono pansi pa ntchito ya kasupe. Dzanja logwedezeka limatumiza mphamvu ya ndodo yokakamiza kapena CAM kupita ku valavu, kuonetsetsa kuti valavu imatsegulidwa ndikutsekedwa molondola .
Ngati mukufuna kudziwa zambiri, pitirizani kuwerenga nkhani zina patsamba lino!
Chonde tiimbireni foni ngati mukufuna zinthu zotere.
Malingaliro a kampani Zhuo Meng Shanghai Auto Co., Ltd. yadzipereka kugulitsa zida zamagalimoto za MG&750 zolandiridwa kugula.
