Yintoni i-valve rocker arm kunye ne-tappet?
Ingalo ye-rocker valve yemoto kunye ne-tappet zezona zinto zibalulekileyo kwindlela yokusebenza kwevalvu yenjini yemoto, kwaye nganye kuzo inomsebenzi kunye nesiphumo esithile.
Ingalo ye-rocker yevalvu
Ingalo ye-rocker yevalvu yinxalenye ebalulekileyo yendlela yevalvu yenjini, indima yayo ephambili kukusebenza ne-camshaft ukuqinisekisa ukuvulwa nokuvalwa kwevalvu ngexesha elifanelekileyo, ukuze kugqitywe inkqubo yokungenisa kunye nokukhupha umoya. Ingalo ye-rocker yi-lever yeengalo ezimbini ene-mid shaft hole njenge-fulcrum. Ingalo emfutshane ifakwe isikrufu sokulungisa i-valve clearance kwicala elinye, kwaye ingalo ende inikwe ubuso obusebenzayo be-arc ukuze ityhale ivalvu .
Itephu yevalvu
Umsebenzi ophambili we-valve tappet kukudlulisela intshukumo kunye namandla e-camshaft kwi-push rod okanye i-valve, kwaye utyhale i-push rod okanye i-valve ukuze woyise amandla e-valve spring. I-tappet kufuneka imelane namandla asecaleni asetyenziswa yi-CAM ngexesha lokusebenza kwaye iwadlulisele emzimbeni okanye entloko yesilinda. I-tappet inokwahlulwa ibe yi-mechanical kunye ne-hydraulic tappet, nganye inesakhiwo sayo kunye nomsebenzi wayo:
I-tappet yoomatshini: idla ngokwenziwa ngentsimbi ye-alloy okanye i-alloy cast iron enokumelana nokuguguleka okuhle. Ulwakhiwo lulula kodwa indawo yokuvula ivalvu kufuneka ilungiswe rhoqo.
I-hydraulic tappet : Isusa ngokuzenzekelayo ukuvuleka kwevalvu ngaphandle kokulungiswa kwaye inciphisa ingxolo yokudluliselwa. I-hydraulic tappet yenziwe ngumzimba we-tappet, i-plunger kunye ne-compension spring, njl.njl., ehlengahlengiswa ngokuzenzekelayo luxinzelelo lweoyile kunye nokusebenza kwe-spring .
Iimeko ezithile zesicelo kunye neenzuzo kunye nokungalungi
I-tappet yoomatshini: isakhiwo esilula, kodwa sidinga ukulungiswa rhoqo kunye nokulungiswa kwesithuba sevalvu. Isebenza kwiimeko ezingadingi ukulungiswa okuphezulu.
I-hydraulic tappet : isakhiwo esintsonkothileyo kodwa sinokulungiswa ngokuzenzekelayo, sinciphise umsebenzi wokulungisa, sifanelekile kwiimfuno zokuthembeka okuphezulu kunye nengxolo yendawo. I-hydraulic tappet ilungiswa ngokuzenzekelayo ngesenzo soxinzelelo lweoyile kunye nentwasahlobo, esinokususa ukuvuleka kwevalvu kwaye sinciphise ingxolo yokudlulisa.
Indima yengalo ye-valve rocker kunye ne-tappet ikakhulu ibandakanya ezi zinto zilandelayo:
Indima ye-tappet
Umsebenzi ophambili we-tappet kukudlulisela ukutyhala kwe-camshaft kwi-push rod okanye kwi-valve rod, kwaye utyhale i-push rod okanye i-valve ukuze woyise amandla e-valve spring kwaye ushukume. Kwangaxeshanye, ukucofa kukwathwala amandla asecaleni asetyenziswa kukujikeleza kwe-camshaft. I-tappet inokwahlulwa ibe ziintlobo ezimbini: i-tappet eqhelekileyo kunye ne-hydraulic tappet:
i-tappet eqhelekileyo : kuquka i-fungus tappet, i-barrel tappet kunye ne-roller tappet. I-tappet eziqhelekileyo zizakhiwo eziqinileyo kwaye azinakususa ngokuzenzekelayo i-valve clearance, ngoko ke kuyimfuneko ukulungisa i-valve clearance rhoqo.
I-hydraulic tappet : ingasusa i-valve clearance yenjini, akukho mfuneko yokulungisa i-valve clearance, kwaye inganciphisa ingxolo yokudlulisela yendlela ye-valve yenjini. I-hydraulic tappet ilungisa ngokuzenzekelayo i-valve clearance ngokusebenzisa uxinzelelo lweoyile kunye nesenzo sentwasahlobo ehlawulayo ukuqinisekisa unxibelelwano olusondeleyo phakathi kwe-valve kunye ne-CAM .
Indima yengalo yerocker
Umsebenzi ophambili wengalo yerocker kukudlulisa amandla ukusuka kwi-push rod okanye kwi-CAM ukuya kwi-valve emva kokutshintsha indlela ukuze ivuleke. I-rocker arm assembly iquka i-rocker arm, i-rocker arm shaft, isihlalo sokuxhasa, isikrufu sokulungisa i-valve clearance kunye nezinye iindawo. Ezi ndawo zisebenza kunye ukuqinisekisa ukuvulwa nokuvalwa ngokuchanekileyo kwe-valve, ngaloo ndlela zilawula inkqubo yokungenisa kunye nokuphuma kwe-exhaust kwaye ziqinisekisa ukusebenza okuqhelekileyo kwenjini .
Umgaqo osebenzayo othile
Xa injini isebenza, i-crankshaft iqhuba i-camshaft ukuba ijikeleze ngendlela yokudlulisa, kwaye i-CAM ekwi-camshaft ityhala intonga yokutyhala okanye ivalvu nge-tashet. Xa inxalenye ephakanyisiweyo ye-CAM ityhala nxamnye ne-tappet, i-tappet idlulisela amandla kwi-push rod okanye ivalvu, ivula ivalvu. Ngokujikeleza kwe-CAM, ivalvu ivalwa kancinci kancinci phantsi kwesenzo sentwasahlobo. Ingalo ye-rocker idlulisela amandla e-push rod okanye i-CAM kwivalvu, iqinisekisa ukuba ivalvu ivula kwaye ivala ngokuchanekileyo.
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