Injini yega yega ine madhiraivha enguva uye akaiswa mayuniti akavakirwa pabhandi kana cheni.Kune yakajairika kushanda kwedhiraivha, bhandi neketani zvinofanirwa kuve nekunetsekana - izvi zvinowanikwa nerubatsiro rwekumanikidza michina, mhando, dhizaini uye sarudzo chaiyo inotsanangurwa mune ino chinyorwa.
Chii chinonzi tensioning device?
Tension mudziyo (belt tensioner, chain) - chishandiso chekubatsira chekutyaira gasi rekugovera michina (nguva) uye madhiraivha emayuniti episton mukati memoto injini;Mechanichani inoseta uye inochengetedza tension yakakwana yebhandi rekutyaira kana cheni.
Iyo tensioning mudziyo inoita akati wandei mabasa:
• Kuiswa uye kugadziriswa kwesimba rekunetsa kwebhanhire rekutyaira / ketani;
• Kubhadharwa kwebhanhire / cheni tension iyo inoshanduka nekuda kwekupfeka kwezvikamu zvemotokari uye kuchinja mumamiriro ezvakatipoteredza (kutambanudza uye kudzvinyirira kwebhanhire / ketani pasi pekuchinja kwekushisa uye humidity, pasi pesimba rekudengenyeka kwemitoro, nezvimwewo);
• Kuderedza kudengenyeka kwebhanhire kana ketani (kunyanya matavi avo akareba);
• Dzivirira bhandi kana cheni kubva pakutsvedza kubva pamapulleys nemagiya.
Kunyangwe tensioning michina iri nzira dzekubatsira dzeinjini, dzinoita basa rakakosha - vanove nechokwadi chekushanda kwakajairwa kwemadhiraivha enguva uye mayuniti akaiswa, uye nekudaro iyo yese simba unit inogara ichichinja mamiriro.Naizvozvo, kana paine kusashanda zvakanaka, zvishandiso izvi zvinofanirwa kugadziriswa kana kutsiviwa.Kuti uite sarudzo yakanaka yeiyo tensioner nyowani, zvinodikanwa kuti unzwisise huwandu hwemaitiro aya anoratidzwa nhasi, dhizaini yavo uye maitiro.
Mhando uye kushanda kwetensioning zvishandiso
Tensioning midziyo yakakamurwa kuita mapoka maererano nechinangwa chavo, kushanda kune imwe mhando yekutyaira, musimboti wekushanda, nzira yekukakavadzana kugadzirisa uye kuwedzera kushanda.
Zvinoenderana nechinangwa, tensioners ndeyemhando mbiri huru:
• Zvekufambisa nguva;
• Kune madhiraivha emayuniti akaiswa emagetsi emagetsi.
Muchiitiko chekutanga, chigadziro chinopa kushushikana kunodiwa kweketani kana bhanhire renguva yejini, mune yechipiri - kushushikana kwebhanhire rejairi redhiraivha yezvikamu kana mabhanhire emayuniti ega (jenareta, pombi yemvura uye fan, air compressor nevamwe).Mazhinji tensioners eakasiyana dhizaini uye chinangwa anogona kuiswa pane imwe injini kamwechete.
Zvinoenderana nekushanda, tensioning zvishandiso zvakakamurwa kuita mapoka matatu:
• Zvemaketani anotyaira;
• Kune madhiraivha pane yakajairika V-belt;
• YeV-ribbed drives.
Tensioner dzemadhiraivha akasiyana anosiyana mukugadzirwa kwechinhu chikuru - pulley.Mumidziyo yemaketani madhiraivha, giya vhiri (sprocket) rinoshandiswa, muV-belt transmissions - V-pulley, mune polyclin madhiraivha - inoenderana V-ribbed kana yakatsetseka pulley (zvichienderana nenzira yekuisa mudziyo unoenderana ne bhanhire - kubva kudivi rehova kana kubva kumashure rakatsetseka divi).
Zvinoenderana nemusimboti wekushanda, tensioning zvishandiso zvakakamurwa kuva marudzi matatu:
• Tensioners ane rigid pulley installation;
• Spring tensioners;
• Hydraulic tensioners.
Imwe neimwe yemhando yemidziyo yekumanikidza ine hunhu hwayo, marudzi avo uye magadzirirwo anotsanangurwa pazasi.
Zvinoenderana nemaitiro ekugadzirisa tension force, zvishandiso ndezvi:
• Manual;
• Automatic.
Dhizaini ye hydraulic cylinder yetiming chain tensioning mudziyo
Mumidziyo yemhando yekutanga, simba rekumanikidza rinoiswa (rakagadziriswa) nemaoko panguva yekugadzirisa kana kana zvichidikanwa.Iyo yakagadziridzwa tensioner inogara iri mune imwe nzvimbo uye haigone kubhadhara kune tension simba rebhandi / ketani.Rudzi rwechipiri rwechigadzirwa chinoshandura chigadziro chayo zvichienderana nemamiriro ezvinhu aripo, saka simba rekumanikidzika rebhanhire rinogara riripo.
Pakupedzisira, tensioning midziyo inogona kusanganiswa nemamwe madivayiri uye kuita mamwe mabasa - nemacheni dampers, limiters, etc. Kazhinji, zvikamu izvi zvinotengeswa sechikamu chekugadzirisa kits kuitira kuchengetedza nguva dzose madhiraivha kana zvikamu, kana kugadzirisa injini.
Dhizaini uye musimboti wekushanda kwetensioning zvishandiso zvine rigid pulley kuisirwa
Aya tensioners anosanganisira matatu marudzi emidziyo:
• Lever;
• Slide;
• Eccentric.
Iyo lever tensioner ine bhuraketi rakaiswa zvakasimba painjini uye chinofambiswa chine pulley chakaiswa pairi.Iyo lever inobatwa pabhuraketi nemabhaudhi maviri, uye imwe yadzo iri mu arcuate groove - ndiko kuvapo kwe groove iyo inobvumidza iwe kugadzirisa chinzvimbo cheiyo lever uye, maererano, kushushikana kwebhanhire.
Slide-type tensioning midziyo inoshandiswa zvakanyanya: mukati mayo pulley haina kusungirirwa pane lever, asi mune yakatwasuka groove yebracket, iyo iyo yakareba screw (bolt) inopfuudzwa.Nekutenderedza screw, iwe unogona kufambisa pulley padivi pe groove, nokudaro uchishandura tension simba rebhandi.Kana simba rekumanikidzika rinodiwa rinotangwa, screw inoverengerwa neti, kuve nechokwadi kusafamba kwepulley.
Pamotokari dzinotakura vanhu, eccentric tensioning zvishandiso zvinonyanya kushandiswa.Zvimiro, iyi tensioner ine roller ine eccentric hub yakamisikidzwa painjini block kana bracket.Simba rekumanikidzika rinoshandurwa nekushandura roller yakapoteredza axis uye kuigadzirisa munzvimbo yakasarudzwa nebhoti.
Ese anotsanangurwa tensioners anogadziriswa nemaoko madhizaini ane akakosha drawback - haakwanise kutsiva shanduko musimba rekunetsa rebhandi.Izvi zvakashata zvinobviswa muchirimo uye hydraulic tensioning zvishandiso.
Dhizaini uye musimboti wekushanda kwechirimo tensioning zvishandiso
Kune marudzi maviri echirimo tensioners:
• Nekumanikidza chitubu;
• Nechitubu chinoputika.
Mumidziyo yemhando yekutanga, otomatiki kugadziridzwa kwebhanhire tension inoitwa neyakajairwa yakamonyoroka chitubu, iyo inodzvanya bracket ne roller / sprocket kune bhandi / ketani.Mumidziyo yemhando yechipiri, basa iri rinoitwa nechitubu chakamonyoroka, chakamonyoroka neimwe simba.
Torsional spring tensioners ndiyo inonyanya kushandiswa nhasi - ndeye compact, yakapusa uye yakavimbika.Chishandiso chakadaro chine lever ine pulley uye chigadziko (chibatiso) chine chitubu, kuitira kuisirwa zviri nyore, chitubu chiri pamudziyo mutsva wekumanikidza chatove chakatsikirirwa nesimba rinodiwa uye chakagadziriswa necheki.
Tensioning mudziyo une torsion chitubu
Sekutonga, zvigadziriso zvechitubu zvekumanikidza zvinoshandiswa mubhandi (V-uye V-ribbed) madhiraivha eakakwikwidzwa mayuniti, pamwe nekufamba kwenguva einjini dzemotokari dzinotakura dzine mabhandi enguva.
Dhizaini uye musimboti wekushanda kwe hydraulic tensioning zvishandiso
Hwaro hwemhando iyi yemagetsi ndeye hydraulic cylinder inotsikirira pulley / sprocket kune bhandi / ketani.Iyo silinda ine makomba maviri ekutaurirana, akaparadzaniswa neinofambiswa plunger, iyo yakabatana nepulley / sprocket nerubatsiro rwetsvimbo (kana kuti, kune lever yechishandiso chekumanikidza chine pulley / sprocket yakaiswa pairi).Zvakare muhumburumbira mune mavharuvhu akati wandei ekunzvenga mvura inoshanda.Pakati penzvimbo yeplunger, silinda inopa inodiwa bhandi / cheni tension uye haina kukanganisa kushanda kwedhiraivha chero nzira.Kana kushushikana kwebhanhire / dhiraivha kuchichinja, plunger inoshandura chinzvimbo chayo, iyo inoshanda fluid inoyerera ichibva kune imwe mhango kuenda kune imwe, ichiva nechokwadi chekukakavadzana kwebhandi munzvimbo itsva.Mhando dzakasiyana dzemafuta einjini dzinoshandiswa semvura inoshanda.
Iyo hydraulic cylinder inogona kuisirwa pabhuraketi kana painjini, mumaketani ekudhiraivha, macylinders maviri anowanzo shandiswa kamwechete, imwe neimwe inoshanda pane yayo sprocket.Macylinders matsva ane preset tension force, tsvimbo dzawo dzakagadziriswa panzvimbo yaidiwa necheki.
Nyaya dzekusarudza, kuchengetedza uye kugadzirisa kwetensioning zvishandiso
Munguva yekushanda kwemotokari, tensioning midziyo inopera zvakanyanya uye inorasikirwa nehunhu hwayo, saka inoda kugara ichiongororwa nekutsiviwa.Iwo chete ma tensioners anokurudzirwa nemugadziri weinjini anofanirwa kusarudzwa kuti atsive - zvikasadaro mudziyo haugone kuisirwa, kana kuti hauzope kushushikana kunodiwa kwebhandi kana ketani.
Zvishandiso zvekumanikidza zvemabhandi madhiraivha emayuniti akaiswa ndiwo akasimba kwazvo uye anogona kushanda kwemakore mazhinji, anofanirwa kuchinjwa nekupfeka kwakakosha kana kuputsika.Iyo itsva tensioner inofanira kuiswa uye kugadziriswa maererano nemirairo yekushanda kwemotokari.Kana iyo mudziyo uine yakaomesesa pulley fixation, saka inofanirwa kugadziriswa nekuchinja chinzvimbo chelever kana kushandisa screw.Kana chigadzirwa chacho chiri chitubu, saka chinofanira kutanga chaiswa, uye wozobvisa cheki - pulley pachayo inotora nzvimbo yekushanda.Muchiitiko ichi, zvinodikanwa kuve nechokwadi kuti mucherechedzo uri pa lever unowira munzvimbo iri pachigadziko chechishandiso, zvikasadaro iwe unofanirwa kushandura bhandi kana kutarisa kushanda kweiyo tensioner.
Kuiswa kwakaringana kwemudziyo wekumanikidza zvichienderana nemaki
Zvishandiso zvekumanikidza zvemacheni ekudhiraivha nguva zvinowanzoshandurwa zvizere neketani, madhamu uye zvimwe zvinhu.Kutsiviwa kwezvikamu izvi kunofanira kuitwa zvakanyatsoenderana nemirairo yemirairo.Matensi emhando iyi haadi kugadziridzwa, anofanirwa kuisirwa uye obva abviswa kubva cheki - iyo sprocket inotora nzvimbo yekushanda uye ive nechokwadi chekunetsekana chaiko kweketani.
Nechisarudzo chakakodzera uye kutsiva kwema tensioners, madhiraivha enguva uye mayunitsi achashanda akavimbika mune chero mamiriro ekushanda.
Nguva yekutumira: Aug-05-2023