Ukulungisa kwemithambo kwi moped "Alpha". Moped "Alpha" - iifoto, iimpawu

Kutheni ukuba ulungise izivingco kwi moped "Alpha"? I-injini ye FMB moped 139 lixhotyiswe timing kunye camshaft ibekwe intloko njengesilinda. Kwemithambo iqhutywa ngendlela iingalo kang. Ngexesha nokusebenza kwemithambo injini ubunzima ukwanda thermal, ke ngoko, ubonelela umsantsa omncinane phakathi ingalo yesitshixo yaye ivelufa, leyo ihlawula ukwanda thermal. Nge ukucoca ukonakalisa ayoneli okanye ngokugqithiseleyo injini kakhulu. Nefuthe elibi kwezikhewu irregular ngcembe oluhlala kwaye kungabangela wokukhusela-valve isihlalo intshabalalo, sinciphise ucinezelo nobushushu kunye deformation ixesha iindawo ezibalulekileyo. Ukulungisa kwemithambo kwi moped "Alpha" izihlandlo ezininzi ngexesha lonyaka ekufuneka kwenziwe. Ukuba Awuqwalaselanga izikhewu thermal angavela uphawu isandi inkqonkqoza xa injini iyasebenza, nto leyo nayo isizathu kwemithambo hlengiso.

I-injini ye moped "Alpha» FMB 139

injini enama-Four FMB 139 yenye iingenelo eziziintloko moped "Alpha". Photo ubonisa injini ngasentla. Le ubunzima injini ukukhanya oluthembekileyo kakhulu nenoqoqosho. umthamo wayo ekungabonini ukusuka cm 49 ukuya 125. Cc., Ubungqingqwa inokuba ukusuka-5 ukuya kwi-8 hp Uguqulo ye injini unokuba eyahlukileyo umthamo lombhobho. Uyakwazi ekhaya ukuze kokufaka inguqulelo ngaphezulu okanye enamandla ngaphantsi iqela cylinder le. I-injini lixhotyiswe gearbox-sigaba ezine. Ngaphezu koko eli moped isiBeki "Alpha".

mechanism distribution gas injini 139 FMB

Valve injini gear FMB 139 ifakwe camshaft elahliweyo intloko njengesilinda. Valve zilungiswe ngokuthe nkqo kunye V-ezimile kwaye iqhutywa ngendlela iingalo yesitshixo, nto leyo iqhutywa ngendlela cams ye camshaft. Le nkqubo efana kakhulu ixesha "Moskvich" 412, kuphela lombhobho mnye kuphela, kunye neevalvu - ezimbini.

Le camshaft iqhutywa ngendlela yokosulela chain. Ngoko, ke, iqhutywa pinion ime le generator plane axis leyo ongu ukujikeleza crankshaft.

Prevention ixesha kunye neziphumo zokungaphumeleli yayo

Zonke izinto ezibandakanyekilyo FMB 139 ixesha Injini kufuna ukuqinisekiswa ngamaxesha rhoqo amaqondo ukuguga. Ukolula chain ixesha kunye nengxabano yayo elementi banxibe kunokukhokelela breakage wayo, nto leyo eza kufuna ukulungiswa kakhulu anzima ezinxulumene imfuneko asuse plane yomvelisi, okanye disassembly endaweni yonke iigiyeri pump oyile crankcase. Ngaphezulu, ixesha ikhonkco breakage kunokubangela deformation ka vana, nto leyo iza kufuna indawo neepleyiti akramnceleyo ukuba Izihlalo kwezivalo ezintsha. Ukungaphumeleli lweziqalelo ixesha ngamnye kungabangela amanye umonakalo omkhulu.

Iimpawu zezilungiselelo vana ezingachanekanga

Ukuba izithuba ucinezelo mikhulu kakhulu, oku kungabangela iimpawu inkqonkqoza okanye iithowuni ukuba kwenzeka xa injini uyasebenza. ukulahleka ucinezelo nayo ibe umphumo engangqalanga izicwangciso ayilunganga lwezivalo. isiphumo engangqalanga ezingafanelekanga hlengahlengiso vana inokuba ukwanda amafutha ngoxa kuncitshiswa amandla ngenxa kwemithambo depressurization, kwakunye ukulahleka synchronism yokusebenza, xa kwemithambo kusebenza uqala ngaphambili okanye emva ukusuka mijikelo piston.

Izixhobo kunye akramnceleyo valve

Umphini kwi moped "Alpha" zenziwe ngendlela efanayo ukuze imoto. Zinelungelo ipleyiti kunye nentonga elongates ngenxa yokwanda thermal ngexesha lokusebenza injini. ixabiso oqhelekileyo Ngwedla kufuneka 0.05 mm. Xa ubushushu kugqitywe thermal ophela phantse ngokupheleleyo lwezivalo. plates vana sealingly uhlale yesali, kunye nokuphela kwegqabi zabo kufuneka akramnceleyo ngokugqibeleleyo emiphethweni isihlalo. Akramnceleyo kwemithambo moped ayahlukanga evela kwimisebenzi ezifanayo iinjini imoto kwaye kwenziwa usebenzisa i Cola enye ngesandla okanye ngomatshini, usebenzisa kombiwa kuyo. Ukususa ivalve ukusuka entloko cylinder FMB 139 isebenzisa puller ekhethekileyo tubular.

iziphumo ezibi ezivela izicwangciso umba engeyiyo

A uthengisa kwi idyokhwe kufuneka cinezela vana, kodwa ukwandisa umsantsa thermal eqalisa ukuba emana enkqonkqoza vana, ebangela ukukhala iimpawu enkqonkqoza ngexesha lokusebenza injini. Oku kunokukhokelela yokonakala olukhawulezisiweyo injini izinto ezibalulekileyo. Ivelufa disc aqale azibethe kwisihlalo, ebangela imbonakalo iziphene esesiphelweni kwesihlalo yaye ivelufa. Kwiqondo lobushushu eliphezulu kungqameko kumphezulu kwiindawo deformations amancinci baqale itshiswe, siyeke uvumelane ngokuqinileyo omnye komnye. yobunzima Lost, iigesi ukutshiswa ebomvu-shushu bayagqobhoza, atshabalalise phezu ivelufa imiphetho nangakumbi. Valve nobushushu kwenzeka yaye, kwezinye iimeko iqala ukuqhekeka kunye isali, kunye caba, amaqhekeza ezincinane okungena kwigumbi yokutsha, ukukrwela piston nodonga njengesilinda.

Xa engekho abana thermal ngokuyintloko ukubandezeleka zeemoto vana. Umjikelo ukusebenza kwawo sandisiwe, nto leyo ekhokelela nobushushu nawawokunyibilika zinongqameko yayo. Ukuba ivelufa zixinaniswe, kusenokuba kuyeka ukuba zivalwe. Xa ukusebenza ngokuqhelekileyo kwenzeka ukunyusa ubungakanani umsantsa thermal, nto leyo isizathu imfuneko yokuba uhlolo rhoqo kwale nobungakanani.

Ukulungisa kwemithambo kwi moped "Alpha"

Valve on FMB motor 139 ilahlwe ngasentla nangasezantsi kwentloko njengesilinda. Ukulufikelela, kufuneka ukhulule isiciko. Ukulungisa kwemithambo kwi moped ayifuni ukususwa intloko yonke. Kodwa kuyimfuneko ukubeka isilinda kwi ngongoma efile. Ukulungiselela le njongo isiciko unalo wenkunkuma plane top lokuvula ivaliwe, nayo, isiciko zeplastiki. Izivalo kuyo, uyakwazi ukubona umzimba wenkunkuma, elona nani. Nge kick-starter wenkunkuma kunokuba ngobunono ukuzitshintsha plane de de ileyibhile "T". Le efanayo inokwenziwa usebenzisa ivili. Le moped kufuneka sibekwe phezu footrest central, kuquka izixhobo yesine ngobunono uvula ivili de kubonakala ileyibhile "T" emngxunyeni emehlweni.

Ukuze ngokuchanekileyo ukulawula inkqubo, uyakwazi ukususa i isiciko ukusuka block ixesha inkwenkwezi, apho ibekwe phezu kwentloko cylinder ekhohlo. Xa le nkwenkwezi ligama ngohlobo yencopho. Ukuba olu phawu luza kuba indawo esekhohlo yomsebenzi, oko kuya kuthetha ingongoma ofileyo. ulungiso valve kwi moped 'kungagqibekanga "ngokuthi emva kokumiselwa lombhobho kwi ngongoma efile. Kuyimfuneko ukuba athambise nut uvala ukutyhala ngentonga. Emva koko kufuneka tyhala amacala we 0.05 mm phakathi uthengisa kunye esikhondweni vana, nsinya intonga push ngesandla, kodwa ukuze uphenyo asuswe. Emva koko, indawo uthengisa kuyimfuneko ukomeleza nut detent.