izindaba

Iyini i-pulley?

I-pulley iyithuluzi noma umshini olula wemishini (ongaba ngokhuni, ngensimbi, noma ngisho nepulasitiki) ohlanganisa intambo eguquguqukayo, intambo, uchungechunge, noma ibhande elithwalwa emphethweni wesondo. Isondo, elibizwa nangokuthi i-sheave noma i-drum, lingaba yinoma yiluphi usayizi nobude.

 

I-pulley ingasetshenziswa yodwa noma ngokuhlanganiswa ukudlulisa amandla nokunyakaza. Lawa madivayisi aklanywe kalula, anamandla asekela ukunyakaza futhi aqondise kabusha ukucindezeleka. Ngale ndlela, ngamandla awo amancane, avumela ukunyakaza kwezinto ezinkulu.

 

Uhlelo lwe-Pulley

Nge-pulley eyodwa, kungashintshwa indlela yamandla asetshenziswayo kuphela. I-pulley ayishintshi nje indlela yamandla asetshenziswayo kodwa futhi iphinda yandise amandla okufaka lapho kusetshenziswa amandla amabili noma ngaphezulu ohlelweni. Uhlelo lwe-pulley lwakhiwe izingxenye ezintathu:

intambo

isondo

i-axle

Ama-pulley enza imisebenzi efana nokuphakamisa okusindayo nokuhamba kube lula. Asebenzisa isondo nentambo ukuphakamisa imithwalo esindayo. Angajikeleziswa. Ama-pulley epulasitiki nawo ayatholakala emakethe futhi asetshenziselwa ukuthwala izinqwaba ezincane nemithwalo. Kuye ngokushintsha kwendlela kanye nobukhulu bamandla, ahlukaniswa ngezinhlobo ezahlukene.

 

Izinhlobo ezahlukene zama-pulley zisetshenziselwa izinjongo ezahlukene. Lezi yizi:

I-Fixed Pulley

I-Pulley Ehambayo

I-Pulley Ehlanganisiwe

I-Block and Tackle Pulley

I-Cone Pulley

I-Swivel Eye Pulley

I-Fixed Eye Pulley

 

Ukusetshenziswa Okungokoqobo Kwezimpuphu

Ama-pulley ayesetshenziswa kakhulu ukwenza umsebenzi wokuphakamisa izinto ezisindayo ube lula. I-pulley ingasetshenziswa yodwa noma ihlanganiswe namanye ama-pulley ukuthutha imishini. Ezinye zezindlela eziningi esetshenziswa ngazo yilezi:

Ama-pulley asetshenziselwa ukuphakamisa amanzi emithonjeni.

Ama-pulley amaningi asetshenziselwa ukusebenza kwama-lifti nama-escalator.

Ama-pulley asetshenziswa njalo kuma-derrick kawoyela futhi angasetshenziswa ekwandiseni amaladi.

Zivame ukusetshenziswa ekuthuthweni nasekusetshenzisweni kwemikhumbi.

Kusetshenziswa ukwandisa inzuzo yemishini uma kusetshenziswa imishini yezimboni kanye nemishini esindayo.

Uhlelo lwe-pulley lusetshenziswa abakhwela amatshe ukuze kube lula ukukhuphuka. Indlela ye-pulley isiza umkhweli ukuthi akhuphuke ngenkathi edonsa intambo iye phansi.

Ama-pulley asetshenziswa emishinini eminingi yokuphakamisa izisindo eyenzelwe ukuzivocavoca. Asetshenziswa ukulawula i-engeli lapho izisindo ziphakanyiswa khona ngenkathi kugcinwa izisindo endaweni efanele.