Mitundu 3 ya ma pulleys ndi chiyani?

Mitundu 3 ya ma pulleys ndi chiyani?
Pali mitundu itatu ikuluikulu ya ma pulleys: okhazikika, osunthika, komanso ophatikizana.Gudumu la kapuli lokhazikika ndi ekisilo zimakhala pamalo amodzi.Chitsanzo chabwino cha pulley yokhazikika ndi mtengo wa mbendera: Mukagwetsa chingwe, njira ya mphamvu imayendetsedwa ndi pulley, ndipo mumakweza mbendera.
Kodi tanthauzo la pulley ndi chiyani?
puli.Pulley ndi gudumu lomwe limanyamula chingwe, chingwe, chingwe, unyolo, kapena lamba pamphepete mwake.Pulleys amagwiritsidwa ntchito limodzi kapena kuphatikiza kuti apereke mphamvu ndi kuyenda.Mapulani okhala ndi nthiti zopindika amatchedwa mitolo.
Kodi pulley ndi chiyani ndipo imagwira ntchito bwanji?
Pulley ndi chingwe kapena waya wokulungidwa pa gudumu.Imasintha njira ya mphamvu.Pulley yoyambira imakhala ndi chingwe kapena waya womangika pamalo osasunthika ozungulira gudumu limodzi kenako kuzungulira gudumu lachiwiri.Kukoka chingwe kumakokera mawilo awiri pamodzi