Kusintha mavavu pa yamoto "Alpha". Yamoto "Alpha" - photos, makhalidwe

Chifukwa kuti kusintha mavavu pa yamoto "Alpha"? The injini ya yamoto FMB 139 yatenganso nthawi ndi camshaft ili mu mutu yamphamvu. mavavu The nizitengedwa mwa manja rocker. Pa ntchito ya mavavu injini zowawa kuwonjezeka ikukhudzana Choncho, amapereka kusiyana kakang'ono pakati pa rocker dzanja ndi vavu, amene compensates zoti awonjezere matenthedwe. Ndi osakwanira kapena kwambiri chilolezo akhoza kuwononga kwambiri engine. Zotsatira zoipa za mipata osasamba pang'onopang'ono amasonkhana ndipo zikhoza lamoto-vavu mpando chiwonongeko, utachepa psinjika kutenthedwa ndi mapindikidwe nthawi mfundo zofunika. Kusintha mavavu pa yamoto "Alpha" kangapo pa nyengo kuchitidwa. Ngati si kukhazikitsidwa mipata matenthedwe akhoza kuoneka khalidwe kugogoda phokoso pamene injini ikulira, amenenso chifukwa mavavu kusintha.

Ulimiwu yamoto ndi "Alpha» FMB 139

Zinayi sitiroko injini FMB 139 ndi imodzi mwa ubwino waukulu yamoto "Alpha". Photo limasonyeza injini pamwamba. Izi ndi odalirika ndi ndalama injini kuwala kulemera. voliyumu yake osiyanasiyana monga masentimita 49 ndi 125. Cc., Ndipo makulidwe mwina 5 mpaka 8 HP Zosintha a injini akhoza kukhala osiyana buku la yamphamvu ya. Mukhoza kunyumba kukhazikitsa podziwa kwambiri kapena zochepa mphamvu ya gulu yamphamvu. injini okonzeka ndi zinayi siteji gearbox. Pamwamba ndi carburetor yamoto "Alpha".

Engine mpweya kufalitsidwa limagwirira 139 FMB

Engine vavu zida FMB 139 yatenganso camshaft oyenerera mu mutu yamphamvu. Mavavu imakonzedwa vertically ndi V zooneka ndi nizitengedwa mwa manja rocker, womwe ndi lotengeka mwa cams wa camshaft a. dongosolo ndi zofanana kwambiri ndi nthawi "Moskvich" 412 okha yamphamvu ndi mmodzi yekha, ndipo mavavu - awiri.

camshaft ndi lotengeka mwa kufala unyolo. Izo, nawonso, ndi lotengeka ndi pinion Chilwa jenereta ozungulira olamulira amene ali olamulira a kasinthasintha wa crankshaft lapansi.

Kuteteza nthawi ndi zotsatira linalephera

Zonse zokhudza FMB 139 Engine NTHAWI amafuna zodziwitsa ndi zonse kutsimikizira digirii zawo zoti. Anatambasula nthawi unyolo ndi mavuto ake amafotokozera avale kungachititse kuti breakage wake, umene amafuna zovuta kwambiri kukonza kugwirizana ndi kufunika kuchotsa ozungulira a jenereta, kapena disassembly m'malo lonse crankcase mafuta mpope magiya. Komanso, nthawi unyolo breakage zikhoza mapindikidwe valavu yomwe amafuna m'malo ndi akukuta mbale kuti saddles mavavu latsopano. Kulephera kwa zinthu payekha nthawi zingachititse angapo kuwonongeka ena oopsa.

Zizindikiro za zoikamo pachithunzichi vavu

Ngati mipata poyatsira lalikulu kwambiri, zingayambitse khalidwe kugogoda kapena kulira kuti kumachitika pamene injini ikulira. psinjika imfa ungakhalenso chifukwa zotsalira za pachithunzichi mavavu zoikamo. Sitipereka chifukwa zosayenera vavu kusintha mwina ndi kuwonjezeka mu mafuta pamene kuchepetsa mphamvu chifukwa mavavu depressurization, komanso imfa ya synchronism ntchito, pamene kuli nthambi ya ntchito wayamba kale kapena mtsogolo kuchokera m'zinthu za pisitoni.

The zida ndi akukuta vavu

Valavu pa yamoto "Alpha" anapangidwa mofanananso ya galimoto. Iwo mbale ndi ndodo kuti elongates chifukwa kuwonjezeka matenthedwe pa ntchito engine. Normal chilolezo mtengo ayenera kukhala 0,05 mm. Pamene Kutentha kwa chilolezo matenthedwe Mwamsanga pafupifupi mwathunthu mavavu. vavu mbale sealingly kukhala chishalo, ndi m'mbali ayenera akukhatira bwinobwino m'mbali mpando. Akukuta mavavu yamoto sasiyana ku ntchito chimodzimodzi injini galimoto ndipo anachita ntchito phala chomwecho pamanja kapena umakaniko, ntchito kubowola. Kuchotsa vavu ku yamphamvu mutu FMB 139 amagwiritsa ntchito yapadera dokotala wongozula mano ayi tubular.

mavuto aakulu akuwuka kwa Makonda pachithunzichi vavu

A pusher pa goli kuti asathe vavu, koma ndi kuwonjezeka kusiyana matenthedwe amayamba kumenya pa vavu, kuchititsa khalidwe mumafuna muziyamba kuchapa akugogoda pa ntchito engine. Zimenezi zingachititse kuti inapita patsogolo avale olimbana ndi mbali zofunika. Valavu chimbale amayamba kumenya pa mpando, kuchititsa maonekedwe vuto m'mphepete mwa mpando vavu. Pa kutentha m'mbali pamwamba pa malo deformations ang'onoang'ono ayamba kuti aliwotche, tisiye woyenera mwamphamvu kwa wina ndi mzake. Anataya zikayamba, red-hot kuyaka mpweya kubooleza ndi kuononga padziko vavu m'mbali kwambiri. Vavu kutenthedwa amapezeka ndipo zina ayamba kugawikana ndi chishalo, ndi khumudwitsidwa, zidutswa ang'onoang'ono amene amagwa mu chipinda kuyaka, kuchipala pisitoni ndi khoma yamphamvu.

Popeza kusiyana matenthedwe makamaka akuvutika utsi valavu. Vuto la ntchito yake anawonjezera, imbaenda kutenthedwa ndi kusungunuka a m'mbali ake. Ngati vavu ali wothinikizidwa, mwina kusiyiratu kutsekedwa. Ntchito zambiri amapezeka kuonjezera matenthedwe kusiyana kukula, chimene chiri chifukwa chosowa cha chiphasochi zonse za kuchuluka izi.

Kusintha mavavu pa yamoto ndi "Alpha"

Mavavu pa FMB galimoto 139 oyenerera pamwamba ndi pansi pa mutu yamphamvu. Kuzikwaniritsa, muyenera unscrew ndi chivindikiro. Kusintha mavavu pa yamoto ndi sikutanthauza kuchotsa mutu wonse. Koma m'pofunika kuika yamphamvu mu mfundo akufa. Chifukwa chaichi chivindikiro ali jenereta ozungulira pamwamba kutsegula anatseka Zikatero, chivundikiro pulasitiki. Chivindikiriro izo, inu mukhoza kuona thupi la jenereta, amene chizindikiro. Ndi kukankha-sitata jenereta akhoza kukhala mokoma atembenuza ndi ozungulira mpaka kufikira chizindikiro "T". Ntchito yomweyo angathe kuchitidwa ntchito gudumu. yamoto ayenera kuvala footrest chapakati, monga zida wachinayi ndi modekha kutembenukira gudumu mpaka zikuoneka kuti chizindikiro "T" mu dzenje kuona.

Molondola kulamulira ndondomeko, mukhoza kuchotsa chivundikiro ku chipika nthawi nyenyezi, limene lili kumanzere mutu yamphamvu. Mu nyenyezi ndi chizindikiro mu mawonekedwe a mfundo. Ngati chizindikiro ichi adzakhala malo leftmost, izo zikutanthauza mfundo akufa. kusintha mavavu pa yamoto "kusakhulupirika" akhoza anachita pambuyo unsembe wa yamphamvu mu mfundo akufa. M'pofunika kumasula lanu mtedza ndi kukankhira ndodo. Ndiye muyenera kuti aponyedwe kafukufuku wa 0,05 mamilimita pakati pa pusher ndi valavu tsinde, kumangitsa Kankhani ndodo pamanja, koma kuti kafukufuku akhoza kuchotsedwa. Ndiye, udindo wa pusher n'kofunika kulimbikitsa detent mtedza.