Mazhinji emazuva ano anotyairwa nemaketani anoshandisa hydraulic chain tensioners.Zvese nezve hydraulic tensioners, dhizaini yavo iripo uye maficha ebasa, pamwe nekusarudzwa kwakaringana nekutsiviwa kwezvishandiso izvi - verenga chinyorwa chakatsanangurwa pane saiti.
Chii chinonzi hydraulic timing chain tensioner?
Hydraulic timing chain tensioner (hydraulic chain tensioner) inhengo yekubatsira yeketani dhiraivha yemagetsi ekugovera gasi;hydraulic cylinder yeakakosha dhizaini inopa iyo inodiwa muhukuru uye inogara iripo munguva (yakazvimiririra yezvino tembiricha mamiriro, mitoro uye kupera kwezvikamu) kukanganiswa kweketani.
Iyo ketani yekutyaira yecamshaft ichiri kupararira, iyo inokonzerwa nekuvimbika kwayo uye kuramba mitoro yakakwira.Zvisinei, ketani iri pasi pekuwedzera kwekupisa (sezvo yakagadzirwa nesimbi), uye nekufamba kwenguva inopera uye inotambanudza - zvose izvi zvinotungamirira kuchinja kwekupindira kweketani, iyo inoratidzwa nekuwedzera kwekudengenyeka uye ruzha. , uye pakupedzisira zvinogona kukonzera kutsvedza pamwe chete nemazino enyeredzi, kuchinja zvikamu uye kunyange kuparadza zvikamu zvega.Matambudziko ese aya anogadziriswa nekushandisa yakakosha mudziyo - hydraulic chain tensioner.
Iyo hydraulic tensioner inoita maviri akakosha mabasa:
● Kugadzirisa otomatiki kwekupindira kweketani kana yasakara nekudhonzwa;
● Damping kudengenyeka kwebazi redunhu panguva yekushanda injini.
Kushandiswa kwechigadzirwa ichi kunoita kuti zvive zvisina kufanira kugadzirisa manyore dhigirii rekupindira kweketani, uye kubvisa mhedzisiro yakaipa yekupfeka zvishoma nezvishoma kwezvikamu zvekutyaira.Zvakare, nekuda kwedhizaini yayo, iyo hydraulic tensioner inonyorovesa vibrations uye vibrations yecheni, ichidzikisa mutoro pazvikamu uye huwandu hweruzha rwemashini.Iyo yakashata hydraulic tensioner inogona kukonzeresa matambudziko, saka inoda kutsiviwa nekukasira.Asi usati watenga kana kuodha nyowani hydraulic chain tensioner, unofanirwa kunzwisisa dhizaini uye kushanda kwemidziyo iyi.
Hydraulic Chain TensionerDhizaini Hydraulic Chain
Mhando, dhizaini uye musimboti wekushanda kwe hydraulic chain tensioners
Scheme yekushanda kwechitubu-hydraulic chain tensioner yeVAZ injini
Muchidimbu, ese emazuva ano ma hydraulic tensioners ane chimiro chakafanana uye musimboti wekushanda, anosiyana chete mune ruzivo uye nekuwedzera kushanda.Iyo unit inoumbwa nesimbi cylindrical body, pamberi payo pane plunger, uye kumashure - gungano revhavha.Chivharo chekushanda chakavharwa chinoumbwa pakati peplunger negungano revhavha.Iyo plunger inogadzirwa muchimiro chegomba cylinder inokwanisa kufamba nemuviri, yakatakurwa-yakatakurwa, muchikamu chayo chepamberi pane nzvimbo yekumisa mubhutsu kana lever ine chain tensioner sprocket.Iyo plunger inodzivirirwa kubva pakutsvedza kunze kwemuviri nepini kana yakakosha yekukiya michina.Gungano revharuvhu rinotakura cheki valve iri padivi peplunger.Ivhavha inogadzirwa nebhora rinotakura chitubu rinovhara mugero wemafuta.Bhora rinogona kungofamba rakananga kugomba rekushanda.
Tensioner Dhizaini Pasina Reserve Cavity
Iyo inokwirisa flange inogadzirwa pane ino tensioner muviri, uye gomba rakarukwa rinopihwa zvakare rekubatanidza chubhu kana hose kubva kune injini lubrication system.Chigadzirwa chacho chakasungirirwa pedyo neketani, plunger yaro inozorora kurwisana neshangu kana sprocket lever, nekuda kwekuti simba rinoshandiswa zvakafanana kune ketani yenguva.
Iyo hydraulic tensioner inoshanda seinotevera.Kana injini inotanga, mafuta akamanikidzwa anopiwa kuvhavha yekuongorora uye, akunda simba remvura, anopiwa kumhango yekushanda.Pasi pechiito chekumanikidza kwakagadzirwa, plunger inotambanudza kubva mumuviri uye inozorora ichipokana neshangu kana sprocket lever.Plunger inofamba inogadzira simba pasi payo iyo cheni inodhonzwa, asi pane imwe nguva kupindira kunosvika pakukosha kwayo - iyo mafuta ekumanikidza mumhango yekushanda haichakwani kuti iwedzere kufamba kweplunger.Panguva ino, ketani inotogadzira kumanikidza pane plunger, uye pane imwe nguva kumanikidzwa kwemafuta mumhango yekushanda kunofananidzwa nekumanikidzwa kwemafuta anobva mujini yerubrication system - izvi zvinotungamirira kukuvhara kwevhavha yekuongorora.Nenzira iyi, mafuta akavharwa mugomba rekushanda, plunger haichakwanisi kufamba, ketani inoramba iri munzvimbo yakaoma.Kana iyo mota inomira, tensioner yakadaro inoramba iri munzvimbo yekushanda, ichidzivirira kupindira kweketani kubva pakuderera.
Zvishoma nezvishoma, ketani yenguva inoburitswa kunze, izvo zvinotungamira mukudzikira kwekumanikidza kunoitwa nayo pane plunger.Pane imwe nguva, kudzvanywa mugomba rekushanda kunova kwakaderera pane kudzvanywa kweinjini yerubrication system - izvi zvinotungamira kuvhura cheki valve uye kudzokorora maitiro ese anotsanangurwa pamusoro apa.Pasi pechiito chekumanikidza kwemafuta, plunger inotambanudza zvishoma kubva paimba uye inobhadhara kutambanudza kweketani, apo kupindira kweketani kunosvika kune zvakakosha zvakare, cheki chevhavha ichavhara.
Izvo zvinofanirwa kucherechedzwa kuti panguva yekushanda kweinjini, iyo tensioner inoshanda senge damper - mafuta akavharwa mugomba rekushanda anotora zvishoma kuvhunduka uye cheni vibrations inopfuudzwa kune plunger.Izvi zvinoderedza ruzha rwekutyaira uye zvinowedzera hupenyu hwezvikamu zvayo.
Nhasi, kune akati wandei magadzirirwo eiyo hydraulic tensioners yeketani, akasiyana mune mamwe magadzirirwo maficha.
Hydraulic tensioners ine mhango yekuchengetedza.Mune michina yakadaro, kune imwe mhango kuseri kwevhavha yegungano, umo mune shoma shoma yemafuta - izvi zvinovandudza kushanda kweketani yekushushikana kwemagetsi mune inopera injini modes uye mune mamwe mamiriro.Zvakare, gomba diki rinogadzirwa mugomba rekuchengetera kubuda ropa, izvo zvinodzivirira mafuta kubva kumhepo mugomba rekushanda.
Hydraulic tensioners ine plunger yekuvhara michina yakavakirwa pakiyi mhete uye grooves.Mumidziyo yakadaro, annular grooves inogadzirwa mukati mekesi, iri pane imwe chinhambwe kubva kune mumwe nemumwe, uye mhete yekuchengeta inowanikwa pane plunger.Apo plunger inofamba, mhete inochengetedza inosvetuka kubva kune groove kuenda kune groove, iyo inozadzisa kuiswa kwechikamu munzvimbo yakagadziriswa.
Hydraulic tensioners ine bypass throttle (kudonhedza mafuta muhurongwa).Mumidziyo yakadaro, gungano revharuvhu rine throttle (diki dhayamita gomba), iyo inovimbisa kuti oiri inodonhedzwa kubva mugomba rekushanda ichidzokera muinjini yekuzora mafuta.Kuvapo kwe throttle kunonatsiridza hunhu hwekunyorova kweiyo tensioner uye inobvumira plunger kwete kungoenda kumberi, asi zvakare kunyura zvishoma mumutumbi nekuwedzera kwenguva pfupi mukushushikana kweketani.
Nhasi, zvese izvi zvishandiso zvinoshandiswa painjini.Kazhinji, imwe hydraulic tensioner inovimbisa kushanda kwakajairwa kwecheni imwe chete, saka imwe tensioner inoshandiswa pamamotors neketani imwe yenguva, uye maviri nemaketani maviri.Zvikamu zvinogona kupihwa zvakasiyana kana kuunganidzwa nemabhuraketi, shangu uye zvimwe zvigadzirwa zvekubatsira.Mazhinji tensioners akashongedzerwa cheki chekudzivirira chinodzivirira kungoerekana kwawedzera kweplunger panguva yekufambisa, cheki iyi inobviswa kana chikamu chakaiswa pamota.Kune mamwe magadzirirwo, asi kazhinji anoshanda nenzira yatsanangurwa pamusoro apa, achingosiyana mune mamwe mamiriro.
Maitiro ekusarudza uye kutsiva iyo nguva cheni hydraulic tensioner
Iyo hydraulic tensioner inoiswa kumitoro yakakosha, saka nekufamba kwenguva inogona kurasikirwa nekusimba kana kutadza nekuda kwekuputsika kwevhavha, chitubu uye zvimwe zvikamu.Kusashanda kwechikamu ichi kunoratidzwa nekuwedzera ruzha rwekufamba kwenguva, uye pakuongororwa kwakananga (izvo zvinoda disassembly chikamu cheinjini), inowonekwa nekunetesa cheni, kusafamba kana, ukuwo, kufamba kwakasununguka kweiyo plunger. .A defective tensioner inofanira kuchinjwa nekukasira.
Chikamu chinotsiva chemhando imwechete uye modhi iyo yakaiswa kare (yakatemerwa nenhamba yekatalogi) inofanira kutorwa.Kushandiswa kwerudzi rwakasiyana rwe hydraulic tensioner kunogona kukonzera kusakwana kana kupindira kwakanyanya kweketani uye kuparara kwedhiraivha yese.Naizvozvo, mudziyo "usiri wekuzvarwa" unofanirwa kuiswa chete mumamiriro ezvinhu apo unonyatsoenderana ne "wenyika" maererano nehunhu.
Hydraulic chain tensioner ine plunger yekuvhara michina uye mafuta reverse drain
Basa rekugadzirisa rinofanira kuitwa maererano nemirairo yeinjini.Kazhinji, kutsiva tensioner, unofanirwa kuwana iyo yekumhanyisa nguva (inoda kubvisa chivharo cheinjini yekumberi, uye dzimwe nguva kuita yakakomba disassembly yeyuniti), uye kungosunungura mabhaudhi maviri akabata chikamu ichi.Ipapo tensioner nyowani inoiswa munzvimbo yayo, uye, kana zvichidikanwa, zvimwe zvikamu (gaskets, zvisimbiso, zvikamu zvepakati pakati peplunger neshangu / lever yekumanikidza sprocket, nezvimwewo).Iyo itsva tensioner haifanirwe kuzadzwa nemafuta, uye plunger yayo haifanirwe kukwidziridzwa nemaoko, zvikasadaro mudziyo unogona kusapa chinodiwa cheni kupindira mushure mekutanga injini.Mushure mekutsiva chikamu, tarisa mwero wemafuta murubrication system uye, kana zvichidikanwa, uuye nayo kune yakajairika.
Pakutanga kwekutanga kwemotokari mushure mekugadzirisa, ruzha rweketani runonzwika kubva kudivi rekutyaira, asi mushure memasekondi mashomanana - apo ganda rekushanda re tensioner razadzwa uye plunger iri munzvimbo yekushanda - inofanira kunyangarika. .Kana ruzha rusinganyangarike, ipapo kuiswa kwechikamu hakuna kunaka kana kune zvimwe zvinokanganisa.Nekusarudzwa kwakaringana uye kutsiva kweiyo hydraulic tensioner, iyo ketani inogara iine yekukanganisa kwakaringana, uye nguva yemota ichashanda yakavimbika mumamodhi ese.
Nguva yekutumira: Jul-13-2023