Roller cheni kana bushed roller cheni anonyanya kushandiswa mumhando dzakasiyana dzeimba, maindasitiri uye ekurima michina yakadai semaconveyors, waya yekudhirowa michina, kudhinda michina, mota, midhudhudhu, nezvimwe. Iri cheni yekutyaira mhando inoshandiswa. bhasikoro. Iyo ine yakatevedzana mapfupi cylindrical rollers akabatwa pamwechete nedivi rekubatanidza. Inotyairwa nemagiya anonzi sprockets. Inzira iri nyore, yakavimbika uye inobudirira yekufambisa magetsi. Mufananidzo wemuzana ramakore rechi 16 naLeonardo da Vinci unoratidza cheni ine roller bearings. Muna 1800, James Fassel akapa patent yeroller chain yakagadzira counterbalance lock, uye muna 1880, Hans Reynold akapa patent yeBush roller chain.
simudza
Bushed roller cheni dzine marudzi maviri ezvibatanidza zvakarongwa zvakangofanana. Rudzi rwekutanga inner link, apo mahwendefa maviri emukati anobatwa pamwechete nemaoko maviri kana mabhushi anotenderera maviri anomonereka. Zvisungo zvemukati zvinochinjana nemhando yechipiri yekunze chinongedzo, chine mahwendefa maviri ekunze akabatwa pamwechete nemapini anopfuura nepakati pemakwenzi emukati. "Bushless" roller cheni inogadzirwa zvakasiyana asi inoshanda zvakafanana. Panzvimbo pemabhushi akaparadzana kana maoko akabata mapaneru emukati pamwechete, mapaneru anodhindwa nemachubhu anobuda nemumaburi uye anoshanda chinangwa chimwe chete. Izvi zvine mukana wekubvisa nhanho mukuungana kweketani. Iyo roller chain dhizaini inoderedza friction, iyo inowedzera kushanda uye inoderedza kupfeka kana ichienzaniswa neyakajeka magadzirirwo. Cheni yekutanga yekutyaira yaive isina rollers kana bushings, uye ese emukati nekunze mahwendefa aibatwa pamwechete nemapini aibata zvakanangana nemazino esprocket. Nekudaro, mukumisikidzwa uku ndakaona kuti mazino e sprocket uye ndiro yaitenderedzwa mazino e sprocket yakapera nekukasira. Dambudziko iri rakagadziriswa zvishoma nekugadzirwa kwecheni dzemaoko, umo mapini akabata mahwendefa ekunze anopfuura nemabhushi kana maoko anobatanidza mahwendefa emukati. Izvi zvinogovera kupfeka panzvimbo yakafara. Nekudaro, mazino e sprocket achiri kupfeka nekukurumidza kupfuura zvaitarisirwa nekuda kwekutsvedza kukweshera nemakwenzi. Iwo akawedzerwa rollers akatenderedza cheni bushing sleeve inopa kutenderedza kusangana nemazino e sprocket uye zvakare inopa yakanakisa kupfeka kuramba kune sprocket neketani. Chero bedzi cheni yakanyatsozorwa, kukwesha kwakadzikira. Kuramba kwakachena kwemafuta emaroller cheni kwakakosha pakushanda kwakanaka uye kugadzikana kwakaringana.
lubricating
Vazhinji vanotyaira maketani (akadai semadhiraivha ecamshaft mumidziyo yefekitari uye injini dzinopisa mukati) dzinoshanda munzvimbo dzakachena kuitira kuti nzvimbo yavo yekupfeka (kureva mapini nemabhushi) irege kukanganiswa neyakagadzika uye yakaturikwa sediment, uye mazhinji akavharwa nharaunda Semuenzaniso, mamwe roller. maketani ane akavakirwa-mukati O-mhete pakati pekunze link plate uye yemukati roller cheni ndiro. Vagadziri vemaketani vakatanga kutora chimiro ichi mushure mekunge Joseph Montano, akashanda kuWhitney Chain muHartford, Connecticut, akagadzira chikumbiro muna 1971. O-mhete dzakaunzwa senzira yekuvandudza lubrication yemagetsi ekufambisa cheni, izvo zvakakosha pakuwedzera hupenyu hwecheni. . Aya anochengeta rabha anogadzira chipingamupinyi chinochengeta girisi yakaiswa mufekitori mukati menzvimbo dzakapfekwa dzepini uye bushing. Uyezve, rubber O-rings inodzivirira guruva uye zvimwe zvinosvibisa kupinda mumaketani emaketani. Kana zvisina kudaro, zvidimbu zvakadaro zvinogona kukonzera kupfeka kwakanyanya. Kune zvakare akawanda maketani anofanirwa kushanda munzvimbo dzakasviba uye haagone kuvharwa nekuda kwehukuru kana zvikonzero zvekushanda. Mienzaniso inosanganisira cheni dzinoshandiswa pamidziyo yepurazi, mabhasikoro, uye masaha. Cheni idzi dzine mwero wakapfava wakanyanya. Mazhinji emafuta-akavakirwa mafuta anokwezva huruva uye zvimwe zvimedu, anozopedzisira agadzira abrasive paste inowedzera kupfeka cheni. Dambudziko iri rinogona kuderedzwa nekushandisa "yakaoma" PTFE spraying. Inoumba firimu rakasimba mushure mekushandisa rinovhara zvose zvimedu uye unyoro.
Motorcycle cheni lubrication
Shandisa mafuta ekugezera ane cheni inomhanya nekumhanya kwakaenzana nemota ine mavhiri maviri. Izvi hazvigoneke pamidhudhudhu yemazuva ano, uye cheni zhinji dzemidhudhudhu dzinomhanya dzisina kudzivirirwa. Naizvozvo, maketani emudhudhudhu anowanzo kurumidza kupera kana achienzaniswa nemamwe mashandisiro. Vanoiswa pasi pesimba rakanyanyisa uye vachisangana nemvura, madhaka, jecha uye munyu wemugwagwa. Cheni yebhasikoro chikamu chedhiraivha chinotamisa simba kubva kumota kuenda kuvhiri rekumashure. Cheni yakanyatsogadziriswa inogona kuwana pamusoro pe98% kutapurirana zvakanaka. Cheni isina kubikwa inoderedza zvakanyanya kuita uye kuwedzera cheni uye sprocket kupfeka. Kune marudzi maviri e aftermarket motorcycle cheni mafuta ekuzora anowanikwa: spray lubricant uye drip systems. Spray lubricant inogona kunge iine wakisi kana Teflon. Aya ekuzora anoshandisa zvinonamira zvinonamira kucheni yako, asi zvakare anogadzira abrasive paste inokweva tsvina uye grit kubva mumugwagwa uye inomhanyisa kupfeka kwechikamu nekufamba kwenguva. Ramba uchizora cheni nekudonha mafuta, uchishandisa mafuta akareruka asinganamati kune cheni. Tsvagiridzo inoratidza kuti madhip emafuta ekupa masisitimu anopa yakanyanya kupfeka kudzivirira uye yakanyanya kuchengetedza simba.
Variants
Kana iyo ketani isingashandiswe kune yakakwirira-kupfeka zvikumbiro (somuenzaniso, kungoendesa mafambiro kubva paruoko reruoko kuenda kune yekudzora shaft yemuchina, kana musuwo unotsvedza pachoto), mhando iri nyore inoshandiswa. Cheni inogona kushandiswa. Sezvineiwo, cheni inogona "kuputika" kana simba rakawedzerwa richidikanwa, asi rinoda kufambiswa zvakanaka panguva diki. Panzvimbo pekuisa mitsara miviri chete yendiro kunze kweketani, zvinokwanisika kuisa 3 ("double"), 4 ("katatu") kana mamwe mitsara yemahwendefa akafanana, ane mabhushi pakati pemapeya ari pedyo uye rollers. Mazino ane nhamba yakafanana yemitsara inorongwa yakafanana uye inofananidzwa pane sprocket. Semuenzaniso, injini yenguva yemotokari inowanzova nemitsara yakawanda yemahwendefa anonzi maketani. Roller cheni dzinouya muhukuru hwakasiyana, neAmerican National Standards Institute (ANSI) miyero iri 40, 50, 60, uye 80. Nhamba yekutanga inoratidza kupatsanuka kwecheni mu8-inch increments, uye nhamba yekupedzisira. iri 0. 1 ndeyecheni yakajairwa, 1 ndeyecheni isingaremi, uye 5 ndeyecheni yemaoko isina rollers. Saka cheni ine 0.5 inch pitch yakakura makumi mana sprocket, nepo saizi 160 sprocket ine 2 inches pakati pemazino, zvichingodaro. Metric thread pitch inoratidzwa mugumi nematanhatu ema inch. Nokudaro, Metric No. 8 chain (08B-1) yakaenzana ne ANSI Nhamba 40. Mazhinji maketani anoputika anogadzirwa kubva ku-plain carbon or alloy steel, asi simbi isina tsvina inoshandiswa mumashini ekugadzira zvokudya uye dzimwe nzvimbo apo lubrication inyaya. , isuwo dzimwe nguva tinoona naironi nendarira nekuda kwechikonzero chimwe chete. Roller cheni dzinowanzobatanidzwa uchishandisa master link (inonziwo "connecting links"). Iyi main link inowanzova nepini inobatwa panzvimbo nebhiza clip kwete friction fit uye inogona kuiswa kana kubviswa nechishandiso chiri nyore. Maketani ane zvinobviswa zvinongedzo kana mapini anonziwo anogadziriswa akatsemuka cheni. Half links (inonziwo "offsets") inowanikwa uye inoshandiswa kuwedzera urefu hweketani neine roller imwe chete. Riveted Roller Chains Migumo yezvisungo zvikuru (inonziwo "connecting links") "riveted" kana kupwanyika. Mapini aya akasimba uye haabviswe.
bhiza clip
Horseshoe clamp ndeye U-yakaita chitubu chesimbi chinonamirwa chinoshandiswa kuchengetedza mahwendefa epadivi ekubatanidza (kana "tenzi") link yaimbove yakakosha kupedzisa roller chain link. Iyo clamp nzira iri kudonha mukufarirwa sezvo macheni akawanda achiitwa kuti ave zvishwe zvisingaperi zvisina kuitirwa kugadzirisa. Midhudhudhu yemazuva ano inenge yakashongedzerwa nemacheni asingaperi, asi zviri kuwedzera kushomeka kuti cheni ichisakara uye inoda kutsiviwa. Inowanikwa se spare part. Kugadziriswa kwekumiswa kwemudhudhudhu kunowanzo kudzikisa kushandiswa uku. Inowanzo kuwanikwa pamidhudhudhu yekare uye mabhasikoro ekare (seaya ane magiya ehub), iyi nzira yekusungirira haigone kushandiswa pamabhasikoro ane derailleur giya sezvo magiya anonamira mushifter. Muzviitiko zvakawanda, ketani isingagumi inogadziriswa kune furemu yemuchina uye haigoni kuchinjwa nyore nyore (izvi zvinonyanya kuitika kumabhasikoro echinyakare). Nekudaro, mune dzimwe nguva, kubatanidza zvinongedzo uchishandisa bhiza simbi zvinogona kusashanda kana kusarudzwa nechishandiso. Muchiitiko ichi, "soft link" inoshandiswa, iyo inovimba chete nekukweshana uchishandisa cheni riveting muchina. Uchishandisa zvinhu zvichangoburwa, maturusi, uye hunyanzvi hwekuita, kugadzirisa uku kugadzirisa kwechigarire kunenge kwakasimba uye kunogara kwenguva yakareba sengetani isina kudambuka.
use
Roller cheni anoshandiswa mudhiraivha yakaderera kusvika pakati nekumhanya inosvika 600 kusvika 800 tsoka paminiti. Zvisinei, pakumhanya kukuru, anenge 2,000 kusvika 3,000 tsoka paminiti, V-mabhandi anowanzoshandiswa nekuda kwekupfeka uye ruzha. Cheni yebhasikoro imhando yeroller cheni. Cheni yako yebhasikoro inogona kunge iine master link, kana ingangoda cheni chishandiso kubvisa uye kuisa. Midhudhudhu mizhinji inoshandisa cheni yakafanana, yakakura, yakasimba, asi iyi dzimwe nguva inotsiviwa nebhandi rine mazino kana shaft drive inoburitsa ruzha rushoma uye inoda kugadziridzwa kushoma. Dzimwe injini dzemotokari dzinoshandisa roller cheni kutyaira camshafts. Madhiraivha egiya anowanzo shandiswa muinjini dzinoshanda zvakanyanya, uye vamwe vagadziri vakashandisa mabhandi ane mazino kubvira kutanga kwema1960. Maketani anoshandiswawo mune forklift anoshandisa hydraulic makondohwe semapulley kusimudza nekudzikisa rori. Nekudaro, macheni aya haaonekwe searoller cheni asi anoiswa seanosimudza cheni kana cheni dzendiro. Chainsaw yekucheka cheni dzakanyanya kufanana nemaroller cheni asi dzakanyanya hukama nemacheni emashizha. Iwo anofambiswa neanobuditsa madhiraivha zvinongedzo uye zvakare anoshanda kumisikidza cheni pabhawa. Zvichida ichishandisa zvisizvo cheni dzemudhudhudhu, Harrier Jumpjet inoshandisa cheni dhiraivha kubva kumota yemhepo kutenderedza muromo weinjini inotakurika inonongedza pasi kuti ienderere mberi nekudzokera kumashure kwandinogona. Kuenda mberi nendege, system inodaidzwa kuti “thrust vectoring.
kupfeka
Mhedzisiro yekupfeka cheni yeroller ndeyekuwedzera pitch (chinhambwe pakati pezvisungo) uye kurebesa cheni. Ziva kuti izvi zvinokonzerwa nekupfekwa papivot pin uye bushing, kwete kureba chaiko kwesimbi (zvinoitika neimwe simbi inochinjika, senge tambo dzehandbrake dzemota). like). Nemaketani emazuva ano, kashoma kuti (isina-bhasikoro) ketani ipfeke kusvika pakutadza. Sezvo cheni inopfeka, mazino e sprocket anotanga kupera nekukurumidza uye pakupedzisira atyoka, zvichikonzera kurasikirwa kwemazino ese esprocket. Sprocket mazino. Iyo sprocket (kunyanya iyo diki yezvipembenene zviviri) inofamba ichikuya inogadzira chimiro chehuko chechimiro pane inofambiswa pamusoro pemazino. (Ichi chiitiko chinowedzerwa nekusawirirana kweketani zvisina kufanira, asi hazvidzivirike zvisinei kuti ndezvipi zvidziviriro zvinotorwa). Mazino akasakara (uye maketani) haakwanise kufambisa simba zvakanaka, izvo zvinozoonekwa muruzha, kudedera, kana (munyaya yeinjini dzemotokari dzine cheni dzenguva) shanduko mukubatidza nguva kunoonekwa kuburikidza nechiedza chenguva. Cheni nyowani pane yakasakara sprocket haigare kwenguva refu, saka mune iyi kesi ese ari maviri sprocket neketani zvinoda kutsiviwa. Nekudaro, mune zvisinganyanyi kuomesesa zviitiko, iwe unogona kuchengetedza yakakura yeayo maviri sprockets. Izvi zvinodaro nekuti madiki madiki anogara achipfeka zvakanyanya. Maketani anowanzo buda kunze kwema sprockets mune akareruka maapplication (senge mabhasikoro) kana muzviitiko zvakanyanyisa zvekusakwana tension. Kureba kweketani kunoverengwa maererano nefomula inotevera: % = ( ( M. − ( S. ＊ P. ) ) / ( S. ＊ P. ) ) ＊ 100 {\ displaystyle \%=((M-(S.) *P ))/(S*P))*100} M = Kureba kwenhamba yakayerwa links S = Nhamba yeakayerwa link P = Pitch Inowanikwa muindasitiri. kutarisa kufamba kwecheni tensioner (ingave yemanyorero kana otomatiki) uye iko kurongeka kweiyo drive cheni Kureba (mutemo wechigunwe ndeyekutambanudza rollers 3% mune inogadziriswa drive kutsiva ketani kana kutambanudza roller cheni 1.5%). % (mune fixed center drive). Nzira iri nyore, kunyanya yakakodzera vashandisi vebhasikoro uye midhudhudhu, ndeyekudhonza cheni kubva pahombe yezvipfuyo zviviri kana cheni yati tuti. Kufamba kwakakosha (kunoonekwa kuburikidza nekuputsika, nezvimwewo) kunogona kuratidza kuti cheni yasvika kana kupfuura iyo yekupedzisira kupera kwayo. Kuregeredza dambudziko iri kunogona kukuvadza sprocket. Sprocket kupfeka kunogona kupokana nemhedzisiro iyi uye mask cheni kupfeka.
Kupfeka cheni yebhasikoro
Cheni dzakareruka pamabhasikoro ane derailleur magiya anogona kutyora nekuti pini yemukati yakaita sedhiramu panzvimbo yecylindrical (kana kuti, mundiro yedivi, sezvo "riveting" kazhinji ndiyo yekutanga kutadza). inogona kubuda). Kubatana pakati pepini nebushing ipoindi kwete mutsara wenguva dzose, zvichiita kuti pini yeketani ipfuure nemubushing uye pakupedzisira roller, pakupedzisira ichiita kuti cheni ibve. Ichi chimiro chakakosha nekuti kuchinjika kwekuita kwekutapurirana uku kunoda kuti cheni ikotame uye kumonyorora parutivi, asi imhaka yekuchinjika uye rusununguko rwakareba rwecheni yakatetepa pabhasikoro. kureba kunogona kuitika. Kukundikana kweketani ishoma yenyaya muhub giya masisitimu (Bendix 2 kumhanya, Sturmey-Archer AW, zvichingodaro.) nekuti iyo yekupfeka inotarisana neyakafanana pini bushings yakakura zvakanyanya. Iyo hub giya sisitimu inobvumirawo kune yakazara imba, iyo inobatsira zvakanyanya mukuzora uye kuchengetedzwa kwejecha.
Chain simba
Chiyero chinonyanyozivikanwa chesimba re roller cheni isimba rekusimba. Kusimba kwesimba kunoratidza huwandu hwemutoro mumwe chete cheni inogona kumira isati yadambuka. Chain kuneta simba rakakosha sekusimba kwesimba. Zvinhu zvakakosha zvinokanganisa simba rekuneta kweketani imhando yesimbi inoshandiswa kugadzira ketani, kurapwa kwekupisa kwezvikamu zveketani, kunaka kweketani plate knot hole processing, rudzi rwepfuti uye simba reiyo. shot peening coating. pabhodhi rekubatanidza. Zvimwe zvinhu zvinogona kusanganisira cheni yeplate ukobvu uye cheni dhizaini dhizaini (mbiri). Pamacheni anotenderera ari kushanda mumadhiraivha anoenderera, mutemo wechigumwe ndewekuti mutoro uri pacheni haufanire kudarika 1/6 kana 1/9 yesimba rekusimba recheni, zvichienderana nerudzi rwemaster link inoshandiswa (press-fit kana slip- pa). inofanira kukwana). Roller cheni dzinoshanda mumadhiraivha anoenderera pamusoro pezvikumbaridzo izvi zvinogona, uye kazhinji kuita, kukundikana nguva isati yakwana nekuda kwekuneta kutadza kwecheni mahwendefa. Iyo yakajairwa shoma yekupedzisira simba re ANSI 29.1 simbi cheni i12,500 x (pitch in inches)2. X-ring uye O-ring cheni inoratidzira mafuta emukati anoderedza zvakanyanya kupfeka uye kuwedzera hupenyu hwecheni. Lubricant yemukati inobayiwa kuburikidza ne vacuum kana ichirevesa cheni.
chain standard
Masangano ezviyero akadai seANSI neISO anochengetedza zviyero zvedhizaini cheni dhizaini, zviyero, uye kuchinjana. Semuenzaniso, tafura iri pasi apa inoratidza data kubva kuANSI Standard B29.1-2011 (Precision Roller Chains, Accessories, uye Sprockets) yakagadzirwa neAmerican Society of Mechanical Engineers (ASME). Ona Zvishandiso kuti uwane ruzivo. Kukubatsira kurangarira, heino imwe chati yezviyero zvakakosha (mainches) zvechiyero chimwe chete ( chinova chikamu chezvaunofunga paunenge uchisarudza nhamba dzinokurudzirwa neiyo ANSI standard): Typical bhasikoro cheni (ye derailleur giya ) Shandisa nhete 1 / 2 inch pitch cheni. Chain hupamhi inoshanduka pasina kukanganisa huwandu hwekutakura. Iyo yakawanda sprockets yaunayo pavhiri rekumashure (yaimbove 3-6, ikozvino 7-12), iyo yakaonda ketani. Maketani anotengeswa zvichienderana nehuwandu hwekumhanya kwavakagadzirirwa kushanda, se "10-speed chain." Hub giya kana imwe kumhanya mabhasikoro anoshandisa 1/2 x 1/8 inch cheni. 1/8 inch inoreva iyo yakakura sprocket ukobvu inogona kushandiswa pacheni. Maketani ane parallel links anowanzo kuve nenhamba yakatodzana yezvinongedzo, ine imwe neimwe nhete link inoteverwa nehupamhi. Maketani akagadzirwa neyunifomu malink ayo akatetepa kune imwe mugumo uye yakafara kune imwe yacho anogona kugadzirwa nehuwandu husinganzwisisike hwemalink, izvo zvinobatsira kugarisa yakakosha sprocket madaro. Kutanga, ngetani dzakadaro dzinenge dzisina kusimba. Roller cheni dzakagadzirwa kune ISO zviyero dzimwe nguva dzinonzi "isochains".
Nguva yekutumira: Nov-06-2023
