I-Rocker yamalungu okulayisha ivili
iroki
Kuba zininzi iintlobo zeendawo ezisecaleni, asikwazi ukuzibonisa zonke kwiwebhusayithi.Nceda uzive ukhululekile ukuqhagamshelana nathi ukuze ufumane ezikhethekileyo.
inzuzo
1. Sinikezela ngeemveliso zoqobo kunye nezasemva kwentengiso kuwe
2. Ukusuka kumvelisi ukuya kumthengi ngokuthe ngqo, ukugcina iindleko zakho
3. Isitokhwe esizinzileyo seendawo eziqhelekileyo
4. Ngexesha lokuHanjiswa kweXesha, kunye neendleko zokuthumela ezikhuphisanayo
5. Ubungcali kunye nexesha emva kwenkonzo
ukupakisha
Iibhokisi zeebhokisi, okanye ngokwesicelo sabathengi.
inkcazelo
Umsebenzi wetappet kukudlulisa ukutyhala kwecam kwintonga yokutyhala okanye intonga yevalvu, ukutyhala intonga yokutyhala okanye ivalve ukoyisa amandla entwasahlobo yevalve, kwaye kwangaxeshanye ithwale amandla asecaleni akhutshwa yicamshaft xa iyajikeleza.Indawo yofakelo ngumngxuma wesikhokelo ubhorekile kwindawo ehambelanayo yebhloko yesilinda okanye intloko yesilinda, edla ngokwenziwa ngentsimbi yenickel-chromium ialloy cast iron or cold shock alloy cast iron.
1)Iiitephu eziqhelekileyo Zintathu iindidi zeetapethi eziqhelekileyo: iitapethi ezimile okwefungus, iicylindrical tappets kunye neroller type tappets.I-fungus-shaped and cylindrical tappets inokunciphisa ubunzima babo ngenxa yefom engenanto;iipopu zohlobo lwe-roller zihambelana nomgca ngenxa yefom yoqhagamshelwano, kwaye i-roller inokuqengqeleka ngokukhululekileyo, enokunciphisa ukunxiba.Iitephu eziqhelekileyo zizakhiwo eziqinileyo kwaye azikwazi ngokuzenzekelayo ukucima ukucocwa kwevalvu.Ke ngoko, iinjini ezisebenzisa iitephu eziqhelekileyo kufuneka zilungelelanise ukucocwa kwevalvu.
2)Iimpawu zeetapethi zehydraulic: Olona ncedo lukhulu lweetapethi zehydraulic ngaphezulu kweetepeti eziqhelekileyo kukuba zinokuphelisa ukucocwa kwevalve ye-injini ngaphandle kokulungelelanisa ukucoceka kwevalve;Kwangaxeshanye, iitapethi zehydraulic zinokunciphisa ingxolo yosasazo yendlela yesivalo se-injini.
3) Ulwakhiwo lwetappet yehydraulic: umzimba wetappet udityaniswe kumzimba omnye ngesigqubuthelo esingaphezulu kunye nesilinda, kwaye unokunyuka usehla kumngxunya wetappet wentloko yesilinda.Umngxuma wangaphakathi kunye nesangqa sangaphandle somkhono zombini zigqityiwe kwaye ziphantsi.Isangqa sangaphandle sihambelana nomngxuma wesikhokelo kwi-tappet, kwaye umngxuma ongaphakathi uhambelana neplunger.Zombini zinokushukuma xa zithelekisana.Intlantsi yembuyekezo ifakwe emazantsi ecylinder yehydraulic ukucinezela ivalve yebhola kwisitulo sevalve seplunger.Inokugcina umgangatho ophezulu wetappet usondelelene nomphezulu wecam ukuphelisa ukukhutshwa kwevalve.Xa i-valve yebhola ivala umngxuma ophakathi we-plunger, i-tappet inokwahlulwa ibe ngamagumbi e-oyile amabini, i-oyile ephezulu yoxinzelelo oluphantsi kunye ne-oyile ephantsi yoxinzelelo oluphezulu;emva kokuba ivalve yebhola ivuliwe, i- through the chamber yenziwa.
4) Umgaqo osebenzayo wetappet ye-hydraulic Xa i-oyile ye-annular groove kumzimba we-tappet ihambelana nomngxuma weoli oblique kwintloko ye-cylinder, i-oyile ekwinkqubo yokuthambisa i-injini iqukuqela ingene kwi-oyile yoxinzelelo oluphantsi ngomngxuma oyile oblique kunye ne-annular. i-oyile.I-groove engundoqo ngasemva kumzimba we-tappet inokukhokelela ioyile kwindawo yoxinzelelo oluphantsi lweoyile ngaphezulu kweplunger.Xa i-cam ijikeleza kunye nomzimba we-tappet kunye ne-plunger ihambela ezantsi, i-oyile ekwigumbi le-oyile yoxinzelelo oluphezulu iyaxinzelelwa kwaye uxinzelelo lweoyile luyenyuka.Kunye nentlakohlaza yembuyekezo, ivalve yebhola icinezelwe ngokuqinileyo kwisitulo esisezantsi sevalve yeplunger.Xa i-oyile ye-high-high-pressure ihlukaniswe ne-oyile ye-low-pressure.Ngenxa yokuba ulwelo lungenakucinezeleka, yonke i-tappet yehla njenge-cylinder, ityhala isikhondo sevalve sivuleke.Ngeli xesha, i-tappet annular oil groove iye yaxutywa kunye ne-oblique oil hole, kwaye i-oil intake iyayeka.Xa i-tappet ifikelela kwiziko layo elisezantsi elifileyo kwaye iqala ukunyuka phezulu, phantsi kwesenzo se-valve ephezulu ye-spring kunye ne-cam yoxinzelelo oluphantsi, i-oyile ye-high-pressure ivaliwe kwaye i-valve yebhola ayiyi kuvula.Itappet yehydraulic isenokuthi ithathwe njenge tappet eqinileyo ide iphakame.Kuze kube yikhamera kwisangqa sesiseko kunye nevalve ivaliwe.Ngeli xesha, ioyile yoxinzelelo kwipaseji yeoyile ephambili yentloko yesilinda ingena kwigumbi leoyile yoxinzelelo oluphantsi lwetappet ngomngxuma oyile othambekele.Kwangaxeshanye, uxinzelelo lwe-oyile kwigumbi loxinzelelo oluphezulu luyehla, kwaye umthombo wembuyekezo utyhala i-plunger phezulu.I-oyile yoxinzelelo olusuka kwi-oyile ye-oyile ephantsi ityhala ivule i-valve yebhola kwi-high-pressure oil room, ukwenzela ukuba amagumbi amabini adibaniswe kwaye azaliswe ngeoli.Ngeli xesha, umgangatho ophezulu we-tappet usanxibelelana ngokusondeleyo nekhamera.Xa i-valve ishushu kwaye yandiswa, i-plunger kunye ne-hydraulic cylinder zihamba ngokuhambelana nomnye kwicala le-axial, kwaye ioli ekwigumbi le-oyile yoxinzelelo oluphezulu inokucinezela kwigumbi le-oyile ephantsi ngoxinzelelo phakathi kwe-gap phakathi kwe-cylinder ye-hydraulic. kunye ne-plunger.Ke ngoko, xa usebenzisa iiteyipu ze-hydraulic, akukho mfuneko yokuba ugcine i-valve clearance.
2. Umsebenzi wentonga yokutyhala kukudlulisa ithraphu egqithiselwa ukusuka kwicamshaft ngetappet ukuya kwingalo yerocker kwindlela yokuhambisa umoya yevalve ephezulu kunye necamshaft esezantsi.Intonga yokutyhala yeyona nto iguquguqukayo kwaye ibhityile kuloliwe wevalvu.Ubume bayo ngokubanzi bubandakanya iinxalenye ezintathu: intloko yebhola ye-concave ephezulu, intloko yebhola ephantsi ye-convex kunye nentonga engenanto.Intonga yokutyhala iqhele ukwenziwa ngombhobho wentsimbi ongenamthungo otsaliweyo, kwaye ezinye zenziwe ngeduralumin.I-putter yensimbi eqinile yenziwa ngokubanzi kunye nenkxaso ye-spherical, kwaye emva koko iphathwa ngobushushu;iziphelo ezimbini ze-duralumin eziphathekayo i-putter eqinile zixhotyiswe ngenkxaso yensimbi, kwaye iziphelo eziphezulu kunye nezantsi zihlanganiswe ne-shaft;Intloko yebhola yangaphambili kunye ne-Shaft yenziwe ngokubanzi, kwaye iziphelo ezimbini zokugqibela zihlanganiswe kunye ne-shaft nge-welding kunye ne-press-fitting.Nangona kukho ukungafani okuthile kwifom yesakhiwo, iimfuno zentonga yokutyhala ziyafana, oko kukuthi, ubunzima obulula kunye nokuqina okuphezulu.Phantsi kweemeko eziqhelekileyo, ukuze kuqinisekiswe ukufaneleka okuchanekileyo kwetappet, ingalo yerocker kunye netappet, intsimbi yeconcave spherical joint is welded kwisiphelo esiphezulu sentonga yokutyhala ukuze itshatise intloko yebhola yerocker arm adjusting screw;Kwisokethi yebhola yeconcave.
3. Umsebenzi ophambili wengalo ye-rocker kukutshintsha indlela yokuhanjiswa kwamandla.Ingalo ye-rocker ilingana nesakhiwo se-lever, esithumela amandla entonga yokutyhala ukuya ekupheleni komsila wesiqu sevalve ukutyhala ivalve ukuba ivuleke;Umlinganiselo wobude beengalo ezimbini (ebizwa ngokuba yi-rocker arm ratio) isetyenziselwa ukutshintsha ukunyuswa kwevalve, ingalo yevalve yeroki Ngokubanzi, yenziwa ngohlobo lobude obungalinganiyo.Ingalo ekwicala levalvu ngama-30% ukuya kuma-50% ubude kunengalo ekwicala lentonga yokutyhala, ukuze kufunyanwe ukunyuswa kwevalve enkulu.
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