Iya kukunika iziseko zeepulleys

Kwi-mechanics, i-pulley eqhelekileyo livili elingqukuva elijikeleza i-axis esembindini.Kukho igroove kumphezulu ojikelezayo wevili elingqukuva.Ukuba intambo ibotshelelwe kumsele kwaye nakweliphina icala lentambo litsalwe ngenkani, ukukhuhlana phakathi kwentambo kunye nevili elingqukuva kuya kubangela ukuba ivili elingqukuva lijikeleze kwiasi esembindini.Ipuli eneneni sisileva esigogekileyo esinokujika.Umsebenzi oyintloko we-pulley kukutsala umthwalo, utshintshe ulwalathiso lwamandla, amandla okuhambisa kunye nokunye.Umatshini oquka iipuli ezininzi ubizwa ngokuba yi "pulley block", okanye "compound pulley".Ibhloko ye-pulley ineenzuzo ezinkulu zoomatshini kwaye inokutsala imithwalo enzima.Iipuli zinokusetyenziswa njengamacandelo ekhonkco okanye kwiibhanti zokuhambisa amandla ukusuka kwi-axis ejikelezayo ukuya kwenye.

Ngokwendawo ye-shaft ephakathi ye-pulley nokuba ihamba, i-pulley inokwahlulwa ibe "i-pulley esisigxina", "i-pulley ehambayo";I-axis ephakathi ye-pulley esisigxina igxininiswe, ngelixa i-axis ephakathi ye-pulley ehambayo inokushukunyiswa, nganye ineenzuzo zayo kunye nokungonakali.Kwaye i-pulley esisigxina kunye nendibano ye-pulley ehambayo kunye inokwenza iqela le-pulley, iqela le-pulley ayigcini nje ukusindisa amandla kwaye inokutshintsha indlela yokunyathela.

I-Pulley ibonakala ngendlela yolwazi kwi-physics yokufundisa i-junior high school, efuna iimpendulo kwiingxaki ezifana nolwalathiso lwamandla, umgama ohambahambayo wentambo ekupheleni kunye nemeko yomsebenzi owenziweyo.

Ulwazi olusisiseko losasazo lokuhlela

Ukuhlelwa, inani

I-pulley esisigxina, i-pulley ehambayo, i-pulley group (okanye ihlukaniswe yaba yi-pulley enye, i-pulley ephindwe kabini, i-pulley emithathu, i-pulley e-4 ukuya kwimijikelo emininzi, njl. njl.).

Izinto eziphathekayo

Ipuli yomthi, ipuli yentsimbi kunye nobunjineli beplastiki yepuli, inokuba nazo zonke iintlobo zemathiriyeli ngokwemfuneko yokwenyani yokusetyenziswa.

Indima

Tsala umthwalo, utshintshe indlela yamandla, amandla okuhambisa, njl.

Iindlela zoqhagamshelo

Uhlobo lwehuku, uhlobo lwekhonkco, uhlobo lwempahla yevili, uhlobo lweringi kunye nohlobo lwekhonkco, uhlobo olutsalwa ngentambo.

Imilinganiselo kunye neMathiriyeli

Ipuli

Iipuli zesayizi ezincinci ezinemithwalo emincinci (D<350mm) ngokuqhelekileyo zenziwe kwiipuli eziqinileyo, zisebenzisa i-15, i-Q235 okanye i-iron cast (njenge-HT200).

Iipuli eziphantsi kwemithwalo emikhulu ngokuqhelekileyo ziyintsimbi edibeneyo okanye insimbi ephosiweyo (njenge-ZG270-500), iphoswe kwisakhiwo esinemivalo kunye nemingxuma okanye izithethi.

Iipuli ezinkulu (D> 800mm) zixutywe ngokubanzi kunye namacandelo kunye namacwecwe ensimbi.