Tanthauzo ndi kapangidwe ka unyolo woyendetsa

Kodi choyendetsera unyolo ndi chiyani? Choyendetsera unyolo ndi njira yotumizira yomwe imatumiza kayendedwe ndi mphamvu ya sprocket yoyendetsa yokhala ndi mawonekedwe apadera a dzino kupita ku sprocket yoyendetsedwa yokhala ndi mawonekedwe apadera a dzino kudzera mu unyolo.
Choyendetsa unyolo chili ndi mphamvu yonyamula katundu (kupsinjika kwakukulu kovomerezeka) ndipo ndi choyenera kutumiza pakati pa ma shaft ofanana pamtunda wautali (mamita angapo). Chingagwire ntchito m'malo ovuta monga kutentha kwambiri kapena kuipitsidwa kwa mafuta. Chili ndi kulondola kochepa kopanga ndi kukhazikitsa komanso mtengo wotsika. Komabe, liwiro lachangu ndi chiŵerengero cha kutumiza kwa unyolo sizikhala zofanana, kotero kutumiza sikokhazikika ndipo kumakhala ndi mphamvu ndi phokoso linalake. Chimagwiritsidwa ntchito kwambiri m'migodi, ulimi, mafuta, njinga zamoto/njinga ndi mafakitale ena ndi makina, komanso mafakitale ambiri a zida, zida zapakhomo, ndi zamagetsi. Mzere wopanga umagwiritsanso ntchito maunyolo othamanga kawiri kunyamula zida.
Chomwe chimatchedwa unyolo wothamanga kawiri ndi unyolo wozungulira. Liwiro loyenda V0 la unyolo silinasinthe. Kawirikawiri, liwiro la wozungulira = (2-3) V0.

Zipangizo zodziyimira pawokha sizimagwiritsa ntchito ma chain drive, chifukwa zofunikira pakukula kwa katundu pansi pa mikhalidwe yogwirira ntchito sizikhala zapamwamba, ndipo chidwi chachikulu chimayikidwa pa liwiro lalikulu, kulondola kwambiri, kukonza kochepa, phokoso lochepa, ndi zina zotero. Izi ndi zofooka za ma chain drive. Kawirikawiri, shaft yamagetsi ya kapangidwe ka makina oyambirira imayendetsa zida za njira zingapo kudzera mu kutumiza ma chain. Chitsanzo cha makina a "one axis, multiple movements" ichi chikuwoneka kuti chili ndi zaukadaulo, koma sichikudziwika masiku ano (kusinthasintha kosauka, kusintha kosasangalatsa, zofunikira kwambiri pakupanga), chifukwa kuchuluka kwa ntchito mkati mwa bizinesi makamaka ndi zida za pneumatic, ndipo njira zosiyanasiyana Zonse zili ndi mphamvu yodziyimira payokha (silinda), ndipo mayendedwe amatha kuwongoleredwa mosavuta kudzera mu mapulogalamu.
Kodi choyendetsera unyolo chili ndi kapangidwe kotani?
Kuyendetsa unyolo ndi njira yotumizira mphamvu yomwe unyolo umatumizira mphamvu kudzera mu maukonde a ma rollers ndi mano a sprocket. Zigawo zomwe zimagwiritsidwa ntchito mu kuyendetsa unyolo ndi monga ma sprockets, ma chain, ma idlers ndi zina zowonjezera (monga ma tension adjusters, ma chain guides), zomwe zimatha kusinthidwa ndikugwiritsidwa ntchito mosinthasintha malinga ndi momwe zinthu zilili. Pakati pawo, unyolowu umapangidwa ndi ma rollers, ma plates amkati ndi akunja, ma bushings, ma pini ndi zina.

Magawo ofunikira a choyendetsa cha unyolo sanganyalanyazidwe.
1. Pitch. Mtunda pakati pa malo apakati a ma rollers awiri oyandikana pa unyolo wozungulira. Pitch ikakula, kukula kwa ziwalozo kumakulirakulira, zomwe zimatha kutumiza mphamvu zambiri ndikunyamula katundu wambiri (pa kutumiza unyolo wozungulira wothamanga pang'ono komanso wolemera, pitch iyenera kusankhidwa yayikulu). Kawirikawiri, muyenera kusankha unyolo wokhala ndi pitch yocheperako yomwe ili ndi mphamvu yotumizira yofunikira (ngati unyolo wa mzere umodzi uli ndi mphamvu yokwanira, mutha kusankha unyolo wa mizere yambiri) kuti mupeze phokoso lochepa komanso kukhazikika.
2. Chiŵerengero cha kutumiza mwachangu. Chiŵerengero cha kutumiza mwachangu cha chain drive ndi i=w1/w2, pomwe w1 ndi w2 ndi liwiro lozungulira la driving sprocket ndi driving sprocket motsatana. i ayenera kukwaniritsa zinthu zina (chiwerengero cha mano a sprockets awiri ndi chofanana, ndipo kutalika kwa mbali yopapatiza ndi chimodzimodzi ndi chiwerengero cha nthawi ya pitch), ndi chosasintha.
3. Chiwerengero cha mano a pinion. Kuonjezera bwino chiwerengero cha mano a pinion kungathandize kuchepetsa kusayenda bwino komanso kutopa kwa minofu.