Impembelelo yePolygon yeeRoller Chains kunye nokubonakaliswa kwayo

Impembelelo yePolygon yeeRoller Chains kunye nokubonakaliswa kwayo

Kwicandelo lothumelo loomatshini,imixokelelwane yerollerzisetyenziswa kakhulu kwimigca yemveliso yemizi-mveliso, oomatshini bezolimo, ukwenziwa kweemoto, uthutho, kunye nezinye izicelo ngenxa yesakhiwo sazo esilula, amandla aphezulu okuthwala umthwalo, kunye nokusebenza kakuhle kweendleko. Nangona kunjalo, ngexesha lokusebenza kwe-roller chain, into eyaziwa ngokuba yi-"polygon effect" ichaphazela ngokuthe ngqo ukugudiswa kothutho, ukuchaneka, kunye nobomi benkonzo, okwenza kube luphawu oluphambili ekufuneka luqondwe ngokupheleleyo ziinjineli, abasebenzi bokuthenga, kunye nabagcini bezixhobo.

Okokuqala, Ukutyhila Isiphumo sePolygon: Yintoni Isiphumo sePolygon seRoller Chains?

Ukuze siqonde isiphumo se-polygon, kufuneka siqale sihlolisise isakhiwo esisisiseko sothumelo lwe-roller chain. Uthumelo lwe-roller chain luquka i-driving sprocket, i-driven sprocket, kunye ne-roller chain. Njengoko i-driving sprocket ijikeleza, ukuxinana kwamazinyo e-sprocket kunye nee-roller chain links kudlulisela amandla kwi-driving sprocket, nto leyo eqhuba iindlela zokusebenza ezilandelayo. Oko kubizwa ngokuba yi-"polygon effect," okwaziwa ngokuba yi-"polygon effect effect error," kubhekisa kwinto eyenzekayo kwi-roller chain transmission apho umgca ojikelezayo we-roller chain ujikeleze i-sprocket wenza imo efana ne-polygon, nto leyo ebangela isantya se-roller sale chain kunye nesantya se-instantaneous angular velocity se-driving sprocket ukuba sibonise ukuguquguquka okwethutyana. Ngamafutshane, njengoko i-sprocket ijikeleza, i-chain ayihambi ngesantya esithe ngqo, kodwa endaweni yoko, ngokungathi ihamba ecaleni kwe-polygon, isantya sayo siyatshintshatshintsha ngokuqhubekayo. Ngokufanayo, i-driving sprocket ikwajikeleza ngesantya se-angular esingaguqukiyo, kodwa endaweni yoko ifumana ukuguquguquka okwethutyana kwisantya. Olu tshintsho alukho ngenxa yokungasebenzi kakuhle kodwa luphawu oluqhelekileyo lwesakhiwo sothutho lwe-roller chain, kodwa impembelelo yalo ayinakutyeshelwa.

Okwesibini, Ukulandelela Imvelaphi: Umgaqo weMpembelelo yePolygon

Isiphumo se-polygon sivela kwiimpawu zesakhiwo see-roller chains kunye ne-sprockets. Sinokuyiqonda ngokucacileyo inkqubo yokuvelisa kwayo ngala manyathelo alandelayo abalulekileyo:

(I) Uqwalaselo lweMeshing lweChain kunye neSprocket

Xa ityathanga elijikelezayo lijikelezwe yi-sprocket, kuba i-sprocket yinxalenye ejikelezayo eyenziwe ngamazinyo amaninzi, xa ikhonkco ngalinye letyathanga lidibanisa izinyo le-sprocket, umgca ophakathi wetyathanga wenza igophe elivaliweyo elenziwe yimigca eliqela ephukileyo. Le gophe ifana ne-polygon eqhelekileyo (yiyo loo nto igama layo lisithi "isiphumo se-polygon"). Inani lamacala ale "polygon" lilingana nenani lamazinyo kwi-sprocket, kwaye ubude becala le "polygon" bulingana ne-chain pitch (umgama ophakathi kwamaziko ee-roller ezimbini ezikufutshane).

(II) Ukuhanjiswa kweMotion yeSprocket yokuqhuba

Xa i-sprocket eqhubayo ijikeleza ngesantya esingaguqukiyo se-ω₁, ​​isantya esijikelezayo sezinyo ngalinye kwi-sprocket asiguquki (v₁ = ω₁ × r₁, apho i-r₁ yirediyasi yepitch ye-sprocket eqhubayo). Nangona kunjalo, ngenxa yokuba indawo ye-meshing phakathi kwe-chain kunye ne-sprocket itshintsha rhoqo kwiprofayili yezinyo le-sprocket, umgama ukusuka kwindawo ye-meshing ukuya kwiziko le-sprocket (oko kukuthi, i-radius ejika ngokukhawuleza) iyahluka rhoqo njengoko i-sprocket ijikeleza. Ngokukodwa, xa ii-chain rollers zingena kakuhle ezantsi kwe-groove phakathi kwamazinyo e-sprocket, umgama ukusuka kwindawo ye-meshing ukuya kwiziko le-sprocket ubuncinci (malunga ne-radius yengcambu yezinyo le-sprocket); xa ii-chain rollers zidibana neencam zezinyo le-sprocket, umgama ukusuka kwindawo ye-meshing ukuya kwiziko le-sprocket ubuphezulu (malunga ne-radius yencam yezinyo le-sprocket). Olu tshintsho oluqhubekayo kwi-radius ejika ngokukhawuleza lubangela ukuguquguquka kwisantya somgca we-instantaneous chain.

(III) Ukuguquguquka kwesantya se-Angular se-Driven Sprocket

Ngenxa yokuba itshayini licandelo lothumelo oluqinileyo (elithathwa njengelingenakolulwa ngexesha lothumelo), isantya somgca wetshayini esikhawulezileyo sidluliselwa ngqo kwi-sprocket eqhutywayo. Isantya se-angular esikhawulezileyo ω₂ se-sprocket eqhutywayo, isantya somgca we-instantaneous v₂ setshayini, kunye ne-radius yokujikeleza ekhawulezileyo r₂' ye-sprocket eqhutywayo zanelisa ubudlelwane ω₂ = v₂ / r₂'.

Ngenxa yokuba isantya esikhawulezileyo somgca we-v₂ setsheyini siyatshintshatshintsha, i-radius yokujikeleza ngokukhawuleza i-r₂' kwindawo ye-meshing kwi-sprocket eqhutywayo ikwatshintsha rhoqo ngokujikeleza kwe-sprocket eqhutywayo (umgaqo uyafana nowe-sprocket eqhubayo). Ezi zinto zimbini zisebenza kunye ukubangela isantya esikhawulezileyo se-ω₂ se-sprocket eqhutywayo ukuba sibonise ukuguquguquka okuntsonkothileyo rhoqo, nto leyo echaphazela uzinzo lwemveliso yenkqubo yonke yothumelo.

Okwesithathu, Umboniso Obonakalayo: Iimpawu Ezithile Zesiphumo SePolygon

Isiphumo se-polygon sizibonakalisa ngeendlela ezininzi kwiinkqubo zothumelo lwe-roller chain. Asichaphazeli nje kuphela ukuchaneka kothumelo kodwa sibangela nokungcangcazela, ingxolo, kunye nezinye iingxaki. Ukusebenza ixesha elide kunokukhawulezisa ukuguguleka kwecandelo kwaye kunciphise ubomi bezixhobo. Iimpawu ezithile ziquka oku kulandelayo:

(1) Ukuguquguquka kwesantya soThutho ngamaxesha athile

Olu lolona phawu luthe ngqo noluphambili lwesiphumo se-polygon. Zombini isantya esikhawulezileyo se-chain linear velocity kunye nesantya esikhawulezileyo se-angular se-sprocket eqhutywayo zibonisa ukuguquguquka okwethutyana njengoko i-sprocket ijikeleza. Ukuphindaphinda kwale kuguquguquka kunxulumene kakhulu nesantya esijikelezayo se-sprocket kunye nenani lamazinyo: okukhona isantya se-sprocket siphezulu kwaye amazinyo emancinci, kokukhona ukuguquguquka kwesantya kuphezulu. Ngaphezu koko, ubukhulu bokuguquguquka kwesantya bukwanxulumene ne-chain pitch kunye nenani lamazinyo e-sprocket: okukhona i-chain pitch inkulu kwaye amazinyo e-sprocket emancinci, kokukhona ubukhulu bokuguquguquka kwesantya buphezulu.

Umzekelo, kwinkqubo yokuqhuba i-roller chain enenani elincinci lamazinyo (umz. z = 10) kunye ne-pitch enkulu (umz., p = 25.4mm), xa i-driving sprocket ijikeleza ngesantya esiphezulu (umz., n = 1500 r/min), isantya esikhawulezileyo se-linear velocity ye-chain sinokutshintshatshintsha kuluhlu olubanzi, okubangela "ukutsiba" okubonakalayo kwindlela yokusebenza eqhutywayo (umz., i-conveyor belt, i-machine tool spindle, njl.njl.), okuchaphazela kakhulu ukuchaneka kokudlulisela kunye nomgangatho womsebenzi. (2) Impembelelo kunye nokungcangcazela

Ngenxa yotshintsho olukhawulezileyo kwisantya setsheyini (ukusuka kwelinye icala eligosogoso ukuya kwelinye), imithwalo yempembelelo ephindaphindayo yenziwa ngexesha lenkqubo ye-meshing phakathi kwetsheyini kunye ne-sprocket. Lo mthwalo wempembelelo udluliselwa ngetsheyini ukuya kwizinto ezifana ne-sprocket, i-shaft, kunye neebheringi, nto leyo ebangela ukungcangcazela kuyo yonke inkqubo yothumelo.

Ubuninzi bokungcangcazela bukwanxulumene nesantya sokujikeleza kwe-sprocket kunye nenani lamazinyo. Xa ubuninzi bokungcangcazela busondela okanye buhambelana nobuninzi bendalo besixhobo, i-resonance inokwenzeka, nto leyo eyandisa ngakumbi ubukhulu bokungcangcazela. Oku akuchaphazeli kuphela ukusebenza okuqhelekileyo kwesixhobo kodwa kunokubangela ukukhululeka kunye nomonakalo kwizixhobo, kwaye kunokubangela neengozi zokhuseleko.

(3) Ungcoliseko lwengxolo

Impembelelo kunye nokungcangcazela zezona zinto ziphambili ezibangela ingxolo. Ngexesha lokudluliselwa kwetyathanga le-roller, impembelelo ye-meshing phakathi kwetyathanga kunye ne-sprocket, ukungqubana phakathi kweendawo zokufaka ityathanga, kunye nengxolo ethwalwa yisakhiwo eveliswa kukungcangcazela okudluliselwa kwisakhelo sezixhobo zonke zinegalelo kwingxolo yeenkqubo zokudluliselwa kwetyathanga le-roller.

Okukhona isiphumo se-polygon sibonakala ngakumbi (umz., isandi esikhulu, amazinyo ambalwa, isantya esiphezulu sokujikeleza), kokukhona impembelelo kunye nokungcangcazela kusiba nzima, kwaye kokukhona ingxolo ikhula kakhulu. Ukuvezwa ixesha elide kumanqanaba aphezulu engxolo akuchaphazeli nje kuphela ukuva kwabaqhubi kodwa kukwaphazamisana nolawulo lwemveliso kunye nonxibelelwano kwindawo yokusebenza, kunciphisa ukusebenza kakuhle komsebenzi.

(IV) Ukwanda kokuNcitshiswa kweCandelo

Imithwalo yempembelelo ejikelezayo kunye nokungcangcazela kukhawulezisa ukuguguleka kwezinto ezifana neetsheyini ezijikelezayo, ii-sprockets, ii-shafts, kunye neebheringi. Ngokukodwa:

Ukunxiba kweeTyathanga: Impembelelo yonyusa uxinzelelo loqhagamshelwano phakathi kweerola zeetyathanga, ii-bushings, kunye neepini, ikhawulezisa ukuguguleka kwaye iyanda kancinci kancinci i-chain pitch (eyaziwa ngokuba "kukunwebeka kweetyathanga"), nto leyo eyonyusa ngakumbi isiphumo se-polygon.

Ukuguguleka kweSprocket: Ukungqubana rhoqo kunye nokungqubana phakathi kwamazinyo esprocket kunye nee-chain rollers kunokubangela ukuguguleka komphezulu wamazinyo, ukulola iincam zamazinyo, kunye nokuqhekeka kweengcambu zamazinyo, okubangela ukuncipha kokusebenza kwe-sprocket meshing.

Ukuguguleka kweShaft kunye neeBearing: Ukungcangcazela kunye neebearing ezichaphazelekayo kunye neebearing ukuya kwimithwalo eyongezelelweyo yeradial kunye ne-axial, okukhawulezisa ukuguguleka kwezinto eziqengqelekayo zebearing, imidyarho yangaphakathi neyangaphandle, kunye neejenali, kunciphisa ubomi benkonzo yeebearing kwaye kubangele nokugoba kweshaft.

(V) Ukunciphisa ukusebenza kakuhle kothumelo

Impembelelo, ukungcangcazela, kunye nokulahlekelwa kokungqubana okongezelelweyo okubangelwa yimpembelelo ye-polygon kunciphisa ukusebenza kakuhle kokudlulisela iinkqubo zokudlulisa ii-roller chain. Kwelinye icala, ukuguquguquka kwesantya kunokubangela ukusebenza okungazinziyo kwendlela yokusebenza, kufuna amandla angakumbi ukoyisa imithwalo eyongezelelweyo ebangelwa kukuguquguquka. Kwelinye icala, ukwanda kokuguguleka kwandisa ukumelana kokungqubana phakathi kwezinto, okwandisa ngakumbi ukulahleka kwamandla. Ngexesha lokusebenza ixesha elide, oku kunciphisa ukusebenza kunokunyusa kakhulu ukusetyenziswa kwamandla kwezixhobo kwaye kunyuse iindleko zemveliso.

Okwesine, Impendulo Yesayensi: Amaqhinga Asebenzayo Okunciphisa Isiphumo SePolygon

Nangona isiphumo se-polygon siluphawu oluqhelekileyo lokudluliselwa kwe-roller chain kwaye asinakususwa ngokupheleleyo, sinokuncitshiswa ngempumelelo ngoyilo olufanelekileyo, ukhetho, kunye namanyathelo okugcina, ngaloo ndlela kuphuculwe ukugudiswa, ukuchaneka, kunye nobomi benkonzo yenkqubo yokudluliselwa. Amaqhinga athile ngala alandelayo:

(I) Ukuphucula uYilo kunye noKhetho lweSprocket

Ukwandisa Inani Lamazinyo E-Sprocket: Ngelixa kuhlangatyezwana nomlinganiselo wokudluliselwa kunye neemfuno zendawo yokufakela, ukwandisa ngokufanelekileyo inani lamazinyo e-sprocket kunokunciphisa umlinganiselo wenani lamacala kubude be-"polygon," kunciphisa ukuguquguquka kwiradiyoni yokujika ngokukhawuleza kwaye ngaloo ndlela kunciphisa ngempumelelo ubukhulu bokuguquguquka kwesantya. Ngokubanzi, inani lamazinyo kwi-sprocket yokuqhuba akufuneki libe lincinci kakhulu (ngokubanzi, kucetyiswa ukuba kungabi ngaphantsi kwamazinyo ali-17). Kwii-transmissions zesantya esiphezulu okanye usetyenziso olufuna ukuguda okuphezulu, kufuneka kukhethwe inani eliphezulu lamazinyo e-sprocket (umz., angama-25 nangaphezulu). Ukunciphisa iimpazamo zobubanzi be-sprocket pitch: Ukuphucula ukuchaneka komatshini we-sprocket kunye nokunciphisa iimpazamo zokuvelisa kunye neempazamo ze-runout ezijikelezayo kwi-sprocket pitch diameter kuqinisekisa utshintsho oluthambileyo kwi-radiyo yokujikeleza ngokukhawuleza yendawo ye-meshing ngexesha lokujikeleza kwe-sprocket, ukunciphisa ukukhwankqiswa kunye nokungcangcazela.

Ukusebenzisa ii-sprockets ezineeprofayili zamazinyo ezikhethekileyo: Kwiinkqubo ezifuna ukudluliselwa okugudileyo kakhulu, ii-sprockets ezineeprofayili zamazinyo ezikhethekileyo (ezifana nee-sprockets ezineemilo ze-arc) zingasetyenziswa. Amazinyo aneemilo ze-arc enza inkqubo ye-meshing phakathi kwetyathanga kunye ne-sprocket ibe lula, inciphisa ukutshayiswa kwe-meshing kwaye ngaloo ndlela inciphise impembelelo yesiphumo se-polygon.

(II) Ukukhetha Ngokufanelekileyo iiParameters zeTyayini

Ukunciphisa iphithi yetyathanga: Iphithi yetyathanga yenye yeeparameter eziphambili ezichaphazela isiphumo se-polygon. Okukhona iphithi incinci, kokukhona ubude becala le-"polygon" buncinci kwaye kokukhona kuncipha ukuguquguquka kwesantya somgca wetyathanga. Ke ngoko, ngelixa kuhlangatyezwana neemfuno zomthamo wokuthwala umthwalo, kufuneka kukhethwe iitsheyini ezinee-pitches ezincinci. Kwizicelo zokudlulisa ngokuchanekileyo ngesantya esiphezulu, iitsheyini ze-roller ezinee-pitches ezincinci (ezifana nemigangatho ye-ISO 06B kunye ne-08A). Ukukhetha iitsheyini ezichanekileyo kakhulu: Ukuphucula ukuchaneka kokwenziwa kweetsheyini, njengokunciphisa ukuphambuka kwe-chain pitch, i-roller radial runout, kunye ne-bushing-pin clearance, kuqinisekisa ukuhamba kakuhle kwetsheyini ngexesha lokusebenza kwaye kunciphisa isiphumo se-polygon esiba mandundu ngenxa yokungonelanga kwetsheyini.

Ukusebenzisa izixhobo zokuqinisa: Ukumisela ngokufanelekileyo izixhobo zokuqinisa iintambo (ezifana nee-spring tensioners kunye nee-weight tensioners) kuqinisekisa ukuba intambo igcina uxinzelelo olufanelekileyo, inciphisa ukutyibilika kweentambo kunye nokungcangcazela ngexesha lokusebenza, ngaloo ndlela inciphisa impembelelo kunye nokuguquguquka kwesantya okubangelwa yimpembelelo ye-polygon.

(III) Ukulawula iiparameter zokusebenza kwenkqubo yothumelo
Ukunciphisa isantya sokudlulisa: Okukhona isantya se-sprocket siphezulu, kokukhona isantya sokutshintshatshintsha, impembelelo, kunye nokungcangcazela okubangelwa yimpembelelo ye-polygon kukhulu. Ke ngoko, xa uyila inkqubo yokudlulisa, isantya sokudlulisa kufuneka sincitshiswe ngokufanelekileyo ngokusekelwe kwiinkcukacha zetyathanga kunye ne-sprocket. Kwiityathanga ezijikelezayo eziqhelekileyo, isantya esiphezulu esivumelekileyo sidla ngokuchazwa ngokucacileyo kwincwadi yemiyalelo yemveliso kwaye kufuneka silandelwe ngokungqongqo.

Ukuphucula umlinganiselo wokudluliselwa: Ukukhetha umlinganiselo wokudluliselwa ofanelekileyo kunye nokuphepha umlinganiselo omkhulu kakhulu (ingakumbi kudluliselo lokunciphisa isantya) kunokunciphisa ukuguquguquka kwesantya se-angular se-sprocket eqhutywayo. Kwinkqubo yokudluliselwa kwamanqanaba amaninzi, umlinganiselo wokudluliselwa ophezulu kufuneka ubekwe kwinqanaba lesantya esisezantsi ukunciphisa impembelelo yesiphumo se-polygon kwinqanaba lesantya esiphezulu.

(IV) Ukuqinisa ukufakwa kunye nokugcinwa kwezixhobo

Qinisekisa ukuchaneka kofakelo: Xa ufaka inkqubo yokudlulisa i-roller chain, qiniseka ukuba impazamo yokufana phakathi kwee-axes ze-sprocket eziqhubayo neziqhutywayo, impazamo yomgama osembindini phakathi kwee-sprocket ezimbini, kunye nempazamo yokujikeleziswa kwe-sprocket end face zingaphakathi koluhlu oluvumelekileyo. Ukuchaneka kofakelo okunganelanga kunokubangela ukungalingani komthwalo kunye nokungasebenzi kakuhle kwe-mesh phakathi kwe-chain kunye ne-sprocket, nto leyo eyandisa ngakumbi isiphumo se-polygon.

Ukuthambisa rhoqo kunye nokugcinwa: Ukuthambisa rhoqo i-roller chain kunye ne-sprockets kunokunciphisa ukungqubana phakathi kwezinto, ukuguguleka kancinci, ukwandisa ubomi benkonzo ye-chain kunye ne-sprockets, kunye nokunciphisa ukungcangcazela ukuya kwinqanaba elithile. Khetha i-lubricant efanelekileyo (efana neoyile okanye i-grease) ngokusekelwe kwindawo yokusebenza kwesixhobo kunye neemeko, kwaye uthambise kwaye uhlole izixhobo ngamaxesha amiselweyo. Buyisela iindawo ezigugulekileyo ngokukhawuleza: Xa i-chain ibonisa ubude obukhulu be-pitch (ngokubanzi idlula i-3% ye-pitch yokuqala), ukuguguleka kwe-roller kuba nzima, okanye ukuguguleka kwamazinyo e-sprocket kudlula umda ochaziweyo, i-chain okanye i-sprocket kufuneka itshintshwe ngokukhawuleza ukuthintela ukuguguleka okugqithisileyo kwe-component ekukhuliseni isiphumo se-polygon kwaye okunokubangela ukungaphumeleli kwesixhobo.

Okwesihlanu, Isishwankathelo
Isiphumo se-polygon see-roller chains luphawu oluqhelekileyo lwesakhiwo sazo sothutho. Sichaphazela kakhulu ukusebenza kunye nobomi benkonzo yenkqubo yothutho ngokuchaphazela uzinzo lwesantya sothutho, ukuvelisa ukungcangcazela kunye nengxolo, kunye nokukhawulezisa ukuguguleka kwecandelo. Nangona kunjalo, ngokuqonda ngokupheleleyo imigaqo kunye neempawu ezithile zesiphumo se-polygon kunye nokusebenzisa amaqhinga okunciphisa ngokwesayensi nafanelekileyo (njengokuphucula ukhetho lwe-sprocket kunye neetsheyini, ukulawula iiparameter zokusebenza, kunye nokuqinisa ukufakwa kunye nokugcinwa), sinokunciphisa ngempumelelo impembelelo embi yesiphumo se-polygon kwaye sisebenzise ngokupheleleyo iingenelo zothutho lwe-roller chain.