Izinjini eziningi zesimanje eziqhutshwa ngamaketanga zisebenzisa ama-hydraulic chain tensioner.Konke mayelana nama-hydraulic tensioners, imiklamo yabo ekhona nezici zomsebenzi, kanye nokukhetha okulungile nokushintshwa kwalezi zixhobo - funda isihloko esihlongozwayo esizeni.
Iyini i-hydraulic timing chain tensioner?
I-Hydraulic timing chain tensioner (i-hydraulic chain tensioner) iyiyunithi eyisizayo ye-chain drive yendlela yokusabalalisa igesi;i-hydraulic cylinder yomklamo okhethekile ohlinzeka ngokudingekayo ngobukhulu nangokuqhubekayo ngesikhathi (okungamele izimo zokushisa zamanje, imithwalo kanye nokuguga kwezingxenye) ukuphazamiseka kweketango.
I-chain drive ye-camshaft isasakazekile, ngenxa yokuthembeka kwayo nokumelana nemithwalo ephezulu.Kodwa-ke, iketanga lingaphansi kokunwetshwa okushisayo (njengoba lenziwe ngensimbi), futhi ngokuhamba kwesikhathi liyaguga futhi liyelule - konke lokhu kuholela ekushintsheni kokuphazanyiswa kweketango, okubonakaliswa ukwanda kokudlidliza nomsindo. , futhi ekugcineni kungaphumela ekusheleleni emazinyweni ezinkanyezi, ukushintsha izigaba ngisho nokucekela phansi izingxenye ngazinye.Zonke lezi zinkinga zixazululwa ngokusebenzisa idivayisi ekhethekile - i-hydraulic chain tensioner.
I-hydraulic tensioner yenza imisebenzi emibili ebalulekile:
● Ukugcinwa okuzenzakalelayo kokuphazamiseka kweketango lapho ligugile futhi lidonsa;
● Ukudambisa ukudlidliza kwegatsha lesifunda ngesikhathi sokusebenza kwenjini.
Ukusetshenziswa kwalolu cingo kwenza kungadingeki ukulungisa mathupha izinga lokuphazanyiswa kweketango, futhi kuqede imiphumela emibi yokuguga kancane kancane kwezingxenye zokushayela.Futhi, ngenxa yokwakheka kwayo, i-hydraulic tensioner inciphisa ukudlidliza nokudlidliza kweketango, inciphisa umthwalo ezingxenyeni kanye nezinga lomsindo jikelele lomshini.I-hydraulic tensioner engalungile ingaba umthombo wezinkinga, ngakho-ke idinga ukushintshwa ngokushesha ngangokunokwenzeka.Kodwa ngaphambi kokuthenga noma uku-oda i-tensioner entsha ye-hydraulic chain, kufanele uqonde ukwakheka nokusebenza kwalawa madivaysi.
I-Hydraulic Chain TensionerDesign Hydraulic Chain
Izinhlobo, ukwakheka kanye nomgomo wokusebenza kwama-hydraulic chain tensioners
Uhlelo lokusebenza lwe-spring-hydraulic chain tensioner yezinjini ze-VAZ
Empeleni, wonke ama-hydraulic tensioners anamuhla anesakhiwo esifanayo nesimiso sokusebenza, ahluke kuphela ngemininingwane nokusebenza okwengeziwe.Iyunithi iqukethe umzimba wensimbi we-cylindrical, phambi kwawo kukhona i-plunger, futhi ngemuva - umhlangano we-valve.Umgodi wokusebenza ovaliwe uyakhiwa phakathi kwe-plunger nomhlangano we-valve.I-plunger yenziwe ngendlela yesilinda esingenalutho esingakwazi ukuhamba nomzimba, silayishwe entwasahlobo, engxenyeni yayo yangaphambili kukhona indawo yokumisa esicathulweni noma i-lever ene-chain tensioner sprocket.I-plunger ivikelwe ekusheleleni ngaphandle komzimba ngephini noma umshini wokukhiya okhethekile.Umhlangano we-valve uphethe i-valve yokuhlola ebekwe eceleni kwe-plunger.I-valve yenziwe ngebhola eline-spring-loaded elivala umgudu wokuhambisa uwoyela.Ibhola lingaya kuphela endaweni yokusebenza.
Idizayini ye-Tensioner Without Reserve Cavity
I-flange ekhuphukayo yenziwa emzimbeni we-tensioner, futhi imbobo enentambo iphinde ihlinzekwe yokunamathisela ithubhu noma ipayipi elisuka ohlelweni lokuthambisa injini.Idivayisi ifakwe eduze kweketango, i-plunger yayo incike esicathulweni noma i-sprocket lever, ngenxa yokuthi amandla adluliselwa ngokulinganayo kuchungechunge lwesikhathi.
I-hydraulic tensioner isebenza kanje.Lapho injini iqala, uwoyela ocindezelwe unikezwa i-valve yokuhlola futhi, ngemva kokunqoba amandla entwasahlobo, unikezwa emgodini osebenzayo.Ngaphansi kwesenzo sokucindezela okudaliwe, i-plunger isuka emzimbeni futhi iphumule ngokumelene nesicathulo noma i-sprocket lever.I-plunger ehambayo idala amandla lapho iketango lidonswa khona, kodwa ngesinye isikhathi ukuphazamiseka kufinyelela inani eliphezulu - ukucindezela kwamafutha emgodini osebenzayo akusanele ukunyakaza okuqhubekayo kwe-plunger.Kuleli qophelo, iketango selivele lidala ingcindezi ku-plunger, futhi ngesinye isikhathi ingcindezi kawoyela endaweni yokusebenza iqhathaniswa nomfutho wamafutha ophuma ohlelweni lokugcoba injini - lokhu kuholela ekuvaleni kwe-valve yokuhlola.Ngale ndlela, amafutha avalelwe emgodini osebenzayo, i-plunger ayisakwazi ukunyakaza, iketanga lihlala endaweni eqinile.Lapho i-motor ima, i-tensioner enjalo ihlala endaweni yokusebenza, ivimbela ukuphazamiseka kweketanga ukuba buthakathaka.
Kancane kancane, uchungechunge lwesikhathi luyakhishwa, okuholela ekwehleni kwengcindezi ekhishwa yilo ku-plunger.Ngesinye isikhathi, ingcindezi emgodini osebenzayo iba ngaphansi kokucindezela okuvela ohlelweni lokugcoba injini - lokhu kuholela ekuvuleni i-valve yokuhlola nokuphinda zonke izinqubo ezichazwe ngenhla.Ngaphansi kwesenzo sokucindezela kwamafutha, i-plunger idlulisela kancane isuka endlini futhi inxephezela ukwelulwa kweketango, lapho ukuphazamiseka kweketanga kufinyelela inani elidingekayo futhi, i-valve yokuhlola izovala.
Kumele kuqashelwe ukuthi ngesikhathi sokusebenza kwenjini, i-tensioner isebenza njenge-damper - amafutha avaliwe emgodini osebenzayo athatha kancane ukushaqeka nokudlidliza kwamaketanga adluliselwa ku-plunger.Lokhu kunciphisa umsindo we-drive futhi kwandisa impilo yezingxenye zayo.
Namuhla, kunezinguquko ezimbalwa zama-hydraulic tensioners we-chain, ahluke kwezinye izici zokuklama.
Ama-Hydraulic tensioners ane-reserve cavity.Kumadivayisi anjalo, kukhona omunye umgodi ngemuva komhlangano we-valve, lapho kukhona khona inani elincane lamafutha - lokhu kuthuthukisa ukusebenza kwe-chain tension mechanism kumamodi enjini yesikhashana nakwezinye izimo.Futhi, imbobo encane yenziwa endaweni yokugcina ukopha, okuvimbela uwoyela ukuthi ungangeni emoyeni osebenza emgodini.
Ama-Hydraulic tensioners anomshini wokukhiya we-plunger osuselwe kwindandatho yokukhiya nemigodi.Kumadivayisi anjalo, ama-groove annular ayenziwa ngaphakathi kwekesi, elisebangeni elithile ukusuka komunye nomunye, futhi indandatho yokugcina itholakala ku-plunger.Lapho i-plunger inyakaza, indandatho ebambayo igxuma isuka emseleni iye emseleni, okufeza ukufakwa kwengxenye endaweni egxilile.
Ama-Hydraulic tensioners ane-bypass throttle (uwoyela wokudonsela ohlelweni).Emishinini enjalo, ukuhlanganiswa kwe-valve kune-throttle (imbobo encane yobubanzi), eqinisekisa ukuthi uwoyela ukhishwa emgodini osebenzayo ubuyele ohlelweni lokugcotshwa kwenjini.Ukuba khona kwe-throttle kuthuthukisa izimfanelo ezidambisayo ze-tensioner futhi kuvumela i-plunger ukuthi ingaqhubeki phambili kuphela, kodwa futhi nokucwila kancane emzimbeni ngokunyuka kwesikhashana kwe-chain tension.
Namuhla, zonke lezi zinsimbi zisetshenziswa ezinjinini.Imvamisa, i-hydraulic tensioner eyodwa iqinisekisa ukusebenza okujwayelekile kweketango elilodwa, ngakho-ke i-tensioner eyodwa isetshenziswa kumamotho aneketanga elilodwa lesikhathi, kanti amabili anamaketango amabili.Izingxenye zingahlinzekwa ngokuhlukana noma zihlanganiswe nabakaki, izicathulo nezinye izinto ezisizayo.Ama-tensioners amaningi afakwe isheke elivikelayo elivimbela ukunwetshwa okuzenzakalelayo kwe-plunger ngesikhathi sokuthutha, leli sheke liyasuswa lapho ingxenye ifakwe emotweni.Kuneminye imiklamo, kodwa ngokuvamile isebenza ngendlela echazwe ngenhla, ihluke kuphela kweminye imininingwane.
Ungakhetha kanjani futhi ufake esikhundleni se-timing chain hydraulic tensioner
I-hydraulic tensioner ingaphansi kwemithwalo ebalulekile, ngakho ngokuhamba kwesikhathi ingalahlekelwa ukuqina noma ihluleke ngenxa yokuphuka kwe-valve, intwasahlobo nezinye izingxenye.Ukungasebenzi kahle kwale ngxenye kubonakala ngomsindo owandayo we-timing chain drive, futhi lapho kuhlolwa ngokuqondile (okudinga ukuhlakazwa ingxenye yenjini), kutholwa ngokwenza buthaka iketango, ukungasebenzi noma, ngokuphambene, ukunyakaza okukhululekile kwe-plunger. .I-tensioner enesici kufanele ishintshwe ngokushesha ngangokunokwenzeka.
Ingxenye eshintshayo yohlobo olufanayo nemodeli efakwe ngaphambili (enqunywa inombolo yekhathalogi) kufanele ithathwe.Ukusetshenziswa kohlobo oluhlukile lwe-hydraulic tensioner kungabangela ukuphazamiseka okunganele noma okudlulele kweketango kanye nokuwohloka kwayo yonke idrayivu.Ngakho-ke, idivayisi "okungeyona yomdabu" kufanele ifakwe kuphela ezimeni lapho ifana ncamashi ne "yomdabu" ngokwezimpawu.
I-Hydraulic chain tensioner ene-plunger locking mechanism kanye ne-oyela reverse drain
Umsebenzi wokulungisa kufanele wenziwe ngokuhambisana nemiyalelo yenjini.Imvamisa, ukuze ungene esikhundleni se-tensioner, udinga ukufinyelela kudrayivu yesikhathi (okudinga ukususa ikhava yenjini yangaphambili, futhi kwesinye isikhathi wenze ukuqaqa okubucayi kweyunithi), futhi umane uvule amabhawodi amabili abambe le ngxenye.Khona-ke i-tensioner entsha ifakwa endaweni yayo, futhi, uma kunesidingo, izingxenye ezengeziwe (ama-gaskets, izimpawu, izingxenye eziphakathi phakathi kwe-plunger nesicathulo / i-lever ye-sprocket yokucindezela, njll.).I-tensioner entsha akufanele igcwaliswe ngowoyela, futhi i-plunger yayo akufanele inwetshwe mathupha, ngaphandle kwalokho idivayisi ingase inganikezeli ukuphazamiseka kweketanga okufunayo ngemva kokuqala injini.Ngemuva kokufaka ingxenye, hlola izinga lamafutha ohlelweni lokugcoba futhi, uma kunesidingo, ulethe evamile.
Ekuqaleni kokuqala kwe-motor ngemuva kokulungiswa, umsindo weketanga uzozwakala ohlangothini lokushayela, kodwa ngemva kwemizuzwana embalwa - lapho umgodi wokusebenza we-tensioner ugcwele futhi i-plunger isendaweni yokusebenza - kufanele iphele. .Uma umsindo ungashabalali, khona-ke ukufakwa kwengxenye akulungile noma kukhona okunye ukungasebenzi kahle.Ngokukhetha okulungile nokushintshwa kwe-hydraulic tensioner, iketango lizohlala linokuphazamiseka okuhle, futhi isikhathi semoto sizosebenza ngokuzethemba kuzo zonke izindlela.
Isikhathi sokuthumela: Jul-13-2023