Ma injini amakono oyendetsedwa ndi unyolo amagwiritsa ntchito ma hydraulic chain tensioner.Chilichonse chokhudza ma hydraulic tensioners, mapangidwe awo omwe alipo ndi mawonekedwe a ntchito, komanso kusankha kolondola ndikusintha zida izi - werengani zomwe zaperekedwa patsambali.
Kodi hydraulic timing chain tensioner ndi chiyani?
Hydraulic timing chain tensioner (hydraulic chain tensioner) ndi gawo lothandizira la makina oyendetsa gasi;silinda ya hydraulic ya kapangidwe kapadera komwe kamapereka zofunikira pakukulira komanso nthawi zonse (zosagwirizana ndi kutentha kwapano, katundu ndi mavalidwe a magawo) kusokoneza unyolo.
Kuyendetsa unyolo wa camshaft akadali ponseponse, chifukwa cha kudalirika kwake komanso kukana katundu wambiri.Komabe, unyolo umakhudzidwa ndi kufalikira kwamafuta (monga umapangidwa ndi chitsulo), ndipo pakapita nthawi umatha ndi kutambasula - zonsezi zimayambitsa kusintha kwa kusokoneza kwa unyolo, womwe umasonyezedwa ndi kuwonjezeka kwa kugwedezeka ndi phokoso. , ndipo potsirizira pake kukhoza kuchititsa kutsetsereka m’mano a nyenyezi, kusintha kagawo kakang’ono ngakhalenso kuwononga mbali iliyonse.Mavuto onsewa amathetsedwa pogwiritsa ntchito chipangizo chapadera - hydraulic chain tensioner.
The hydraulic tensioner imagwira ntchito ziwiri zofunika:
● Kukonzekera kokhazikika kwa kusokoneza kwa unyolo pamene vala ndi kukoka;
● Kuchepetsa kugwedezeka kwa nthambi yozungulira panthawi ya injini.
Kugwiritsa ntchito chipangizochi kumapangitsa kuti pasakhale kofunikira kusintha pamanja kuchuluka kwa kusokonezedwa kwa unyolo, ndikuchotsa zoyipa zomwe zimachitika pang'onopang'ono za magawo agalimoto.Komanso, chifukwa cha mapangidwe ake, hydraulic tensioner imachepetsa kugwedezeka ndi kugwedezeka kwa unyolo, kuchepetsa katundu pazigawo ndi phokoso lonse la makina.Chotsitsa cha hydraulic cholakwika chikhoza kukhala gwero lamavuto, chifukwa chake chiyenera kusinthidwa posachedwa.Koma musanagule kapena kuyitanitsa cholumikizira chatsopano cha hydraulic chain, muyenera kumvetsetsa kapangidwe ndi magwiridwe antchito a zida izi.
Hydraulic Chain TensionerDesign Hydraulic Chain
Mitundu, kapangidwe ndi mfundo za magwiridwe antchito a hydraulic chain tensioners
Dongosolo la ntchito ya ma spring-hydraulic chain tensioner a injini za VAZ
M'malo mwake, makina onse amakono a hydraulic tensioners ali ndi mawonekedwe omwewo ndi mfundo zogwirira ntchito, zimasiyana mwatsatanetsatane komanso magwiridwe antchito owonjezera.Chigawochi chimakhala ndi thupi lachitsulo lozungulira, kutsogolo komwe kuli plunger, ndipo kumbuyo - msonkhano wa valve.Patsekeke yotsekedwa yogwira ntchito imapangidwa pakati pa plunger ndi msonkhano wa valve.Plunger imapangidwa ngati silinda yopanda kanthu yomwe imatha kuyenda mozungulira thupi, imakhala yodzaza ndi masika, kutsogolo kwake kuli malo oti muyime mu nsapato kapena lever yokhala ndi sprocket yolumikizira unyolo.Plunger imatetezedwa kuti isatuluke m'thupi ndi pini kapena makina apadera otsekera.Msonkhano wa valve umanyamula valavu yoyang'ana yomwe ili pambali ya plunger.Vavuyi imapangidwa ndi mpira wodzaza masika womwe umatseka njira yoperekera mafuta.Mpirawo ukhoza kungosunthira kumalo ogwirira ntchito.
Tensioner Design Popanda Reserve Cavity
Flange yokwera imapangidwa pathupi lolimbitsa thupi, ndipo bowo lopangidwa ndi ulusi limaperekedwanso kuti limangirire chubu kapena payipi kuchokera ku makina opangira mafuta.Chipangizocho chimayikidwa pafupi ndi unyolo, plunger yake imatsamira pa nsapato kapena sprocket lever, chifukwa chomwe mphamvu imaperekedwa mofanana ku unyolo wa nthawi.
The hydraulic tensioner imagwira ntchito motere.Injini ikayamba, mafuta oponderezedwa amaperekedwa ku valavu yowunikira ndipo, atagonjetsa mphamvu ya masika, amaperekedwa kumtunda wogwira ntchito.Pansi pa kukakamizidwa kopangidwa, plunger imachokera mthupi ndikupumira motsutsana ndi nsapato kapena sprocket lever.Plunger yosuntha imapanga mphamvu yomwe unyolo umakokedwa, koma panthawi ina kusokoneza kumafika pamtengo wake waukulu - kuthamanga kwa mafuta muzitsulo zogwirira ntchito sikukwaniranso kuyenda kwa plunger.Panthawiyi, unyolo umapanga kale kupanikizika kwa plunger, ndipo panthawi ina kuthamanga kwa mafuta muzitsulo zogwirira ntchito kumafananizidwa ndi mphamvu ya mafuta yomwe imachokera ku makina opangira injini - izi zimabweretsa kutsekedwa kwa valve.Mwanjira iyi, mafuta amatsekedwa muzitsulo zogwirira ntchito, plunger sangathenso kusuntha, unyolo umakhalabe wolimba.injini ikayima, cholumikizira choterocho chimakhalabe pamalo ogwirira ntchito, kulepheretsa kusokoneza kwa unyolo kuti zisafowoke.
Pang'onopang'ono, unyolo wa nthawi umatulutsidwa, zomwe zimabweretsa kuchepa kwa kukakamizidwa komwe kumaperekedwa ndi plunger.Panthawi ina, kupanikizika muzitsulo zogwirira ntchito kumakhala kotsika kusiyana ndi kukakamizidwa kwa injini yopangira mafuta - izi zimabweretsa kutsegula valavu ndikubwereza njira zonse zomwe tafotokozazi.Pansi pa kupanikizika kwa mafuta, plunger imatuluka pang'ono kuchokera m'nyumba ndikubwezera kutambasula kwa unyolo, pamene kusokonezeka kwa unyolo kukufika pamtengo wofunikira kachiwiri, valve yowunikira idzatseka.
Tikumbukenso kuti pa ntchito injini tensioner amachita ngati damper - mafuta kutsekedwa patsekeke ntchito pang`ono zimatenga mantha ndi unyolo kugwedezeka kufala kwa plunger.Izi zimachepetsa phokoso la galimoto ndikuwonjezera moyo wa ziwalo zake.
Masiku ano, pali zosintha zingapo za ma hydraulic tensioners a unyolo, omwe amasiyana ndi mawonekedwe ena.
Ma hydraulic tensioners okhala ndi malo osungira.Pazida zoterezi palinso phokoso lina kumbuyo kwa msonkhano wa valve, momwe muli mafuta pang'ono - izi zimathandizira kugwira ntchito kwa makina osakanikirana mumayendedwe osakhalitsa komanso nthawi zina.Komanso, pabowo laling'ono limapangidwa m'bowo losungiramo magazi, lomwe limalepheretsa kuti mafutawo asatuluke m'bowolo.
Ma hydraulic tensioners okhala ndi makina otsekera a plunger potengera mphete yokhoma ndi ma grooves.Pazida zoterezi, ma grooves a annular amapangidwa mkati mwake, yomwe ili pamtunda wina kuchokera kwa wina ndi mzake, ndipo mphete yosungira imakhala pa plunger.Pamene plunger isuntha, mphete yosungirayo imadumpha kuchoka ku groove kupita ku poyambira, zomwe zimapangitsa kuti gawolo likhale lokhazikika.
Ma hydraulic tensioners okhala ndi bypass throttle (kukhetsa mafuta mu dongosolo).Pazida zotere, gulu la ma valve limakhala ndi throttle (dzenje laling'ono laling'ono), lomwe limatsimikizira kuti mafuta amachotsedwa kuchokera pabowo logwirira ntchito kubwereranso mu makina opangira mafuta.Kukhalapo kwa throttle kumapangitsa kuti ma tensioner azikhala bwino ndipo amalola kuti plunger asamangopita patsogolo, komanso kuti amire pang'ono m'thupi ndikuwonjezeka kwakanthawi kochepa.
Masiku ano, zida zonsezi zimagwiritsidwa ntchito pa injini.Nthawi zambiri, tensioner imodzi yama hydraulic imatsimikizira kuti unyolo umodzi wokha umagwira ntchito bwino, motero cholumikizira chimodzi chimagwiritsidwa ntchito pama motors okhala ndi unyolo umodzi wanthawi, ndi awiri okhala ndi maunyolo awiri.Zigawo zimatha kuperekedwa padera kapena kuphatikizidwa ndi mabatani, nsapato ndi zida zina zothandizira.Ma tensioners ambiri amakhala ndi cheke choteteza chomwe chimalepheretsa kufalikira kwaposachedwa kwa plunger panthawi yoyendetsa, cheke ichi chimachotsedwa pomwe gawolo layikidwa pagalimoto.Palinso mapangidwe ena, koma nthawi zambiri amagwira ntchito monga momwe tafotokozera pamwambapa, mosiyana ndi zina.
Momwe mungasankhire ndikusintha ma chain chain hydraulic tensioner
The hydraulic tensioner imakhala ndi katundu wambiri, kotero pakapita nthawi imatha kutaya mphamvu kapena kulephera chifukwa cha kusweka kwa valve, masika ndi mbali zina.Kuwonongeka kwa gawoli kumawonetseredwa ndi phokoso lowonjezereka la kayendetsedwe ka nthawi, ndipo poyang'anitsitsa (zomwe zimafuna kusokoneza pang'ono kwa injini), zimadziwika ndi kufooketsa unyolo, kusasunthika kapena, mosiyana, kuyenda momasuka kwa plunger. .tensioner yolakwika iyenera kusinthidwa posachedwa.
Gawo lolowa m'malo lamtundu womwewo ndi chitsanzo chomwe chinayikidwa kale (chotsimikiziridwa ndi chiwerengero cha catalog) chiyenera kutengedwa.Kugwiritsa ntchito mtundu wina wa hydraulic tensioner kungayambitse kusakwanira kapena kusokoneza kwambiri unyolo ndi kuwonongeka kwa drive yonse.Choncho, chipangizo "osakhala mbadwa" chiyenera kukhazikitsidwa pokhapokha ngati chikugwirizana ndi "mbadwa" malinga ndi makhalidwe.
Hydraulic chain tensioner yokhala ndi makina otsekera a plunger ndi kukhetsa kwamafuta
Ntchito yokonza iyenera kuchitika motsatira malangizo a injini.Nthawi zambiri, kuti m'malo tensioner, muyenera kupeza nthawi pagalimoto (chomwe chimafunika kuchotsa chivundikiro cha injini kutsogolo, ndipo nthawi zina kuchita disassembly kwambiri wa unit), ndi mophweka unscrew mabawuti awiri agwira gawo ili.Kenako cholumikizira chatsopano chimayikidwa m'malo mwake, ndipo, ngati kuli kofunikira, magawo owonjezera (ma gaskets, zisindikizo, magawo apakatikati pakati pa plunger ndi nsapato / lever ya sprocket, etc.).Chotsitsa chatsopanocho sayenera kudzazidwa ndi mafuta, ndipo plunger yake sayenera kukulitsidwa pamanja, apo ayi chipangizocho sichingapereke kusokoneza komwe kumafunikira pambuyo poyambitsa injini.Mukasintha gawolo, yang'anani kuchuluka kwamafuta mumayendedwe opaka mafuta ndipo, ngati kuli kofunikira, bweretsani bwino.
Pachiyambi choyamba cha injini pambuyo pa kukonzanso, phokoso la unyolo lidzamveka kuchokera kumbali ya galimoto, koma patatha masekondi angapo - pamene chingwe chogwira ntchito cha tensioner chadzazidwa ndipo plunger ikugwira ntchito - iyenera kutha. .Ngati phokoso silitha, ndiye kuti kuyika kwa gawolo sikulakwa kapena pali zovuta zina.Ndi kusankha kolondola ndi kusinthidwa kwa hydraulic tensioner, unyolo udzakhala ndi kusokoneza koyenera, ndipo nthawi ya galimoto idzagwira ntchito molimba mtima m'njira zonse.
Nthawi yotumiza: Jul-13-2023