上海滬工閥門廠(集團)有限公司
齒(chi)(chi)(chi)輪(lun)(lun)傳(chuan)動(dong)(dong)(dong)(dong)裝(zhuang)(zhuang)置利用(yong)兩(liang)齒(chi)(chi)(chi)輪(lun)(lun)的(de)輪(lun)(lun)齒(chi)(chi)(chi)相互嚙合傳(chuan)遞(di)動(dong)(dong)(dong)(dong)力(li)和(he)(he)運動(dong)(dong)(dong)(dong)的(de)機械傳(chuan)動(dong)(dong)(dong)(dong),用(yong)主(zhu)、從動(dong)(dong)(dong)(dong)輪(lun)(lun)輪(lun)(lun)齒(chi)(chi)(chi)直(zhi)接、傳(chuan)遞(di)運動(dong)(dong)(dong)(dong)和(he)(he)動(dong)(dong)(dong)(dong)力(li)的(de)裝(zhuang)(zhuang)置。按齒(chi)(chi)(chi)輪(lun)(lun)軸線(xian)的(de)相對位(wei)置分(fen)平行軸圓柱齒(chi)(chi)(chi)輪(lun)(lun)傳(chuan)動(dong)(dong)(dong)(dong)、相交軸圓錐齒(chi)(chi)(chi)輪(lun)(lun)傳(chuan)動(dong)(dong)(dong)(dong)和(he)(he)交錯軸螺旋(xuan)齒(chi)(chi)(chi)輪(lun)(lun)傳(chuan)動(dong)(dong)(dong)(dong)。具有(you)傳(chuan)動(dong)(dong)(dong)(dong)平穩,傳(chuan)動(dong)(dong)(dong)(dong)比(bi)精確,工作可靠、效率高、壽命(ming)長(chang),使(shi)用(yong)的(de)功率、速(su)度(du)和(he)(he)尺(chi)寸范圍(wei)大(da)等特點。
齒輪傳動的缺點
①運轉(zhuan)中振動(dong)(dong)、沖(chong)擊和噪(zao)聲,并產生(sheng)動(dong)(dong)載荷。
②無過載保護作用。
③要(yao)求齒輪的切齒精度。
齒輪傳動的優點
①瞬時傳動(dong)比(bi)恒定,工作(zuo)平穩性較高。
②采用非圓(yuan)齒輪,瞬時傳(chuan)動比可按(an)所需變化規律設(she)計。
③傳動(dong)比(bi)變化范圍(wei)大,特別是采用(yong)行星傳動(dong)時,傳動(dong)比(bi)可到 100~200(單級),適(shi)用(yong)于(yu)減速或增速傳動(dong)。
④速度(du)范(fan)圍(wei)大,齒輪的圓周速度(du)可從 V<0.1m/s 達到(dao) 200m/s,或更高;轉速可從 n<1r/min 到(dao) 20000r/min 以上。
⑤傳(chuan)遞(di)功率范圍大(da),承載能力(li)高。
⑥傳動(dong)效(xiao)率(lv)高,特別是(shi)精度(du)較高的圓(yuan)柱齒輪副,其效(xiao)率(lv)可達 η=0.99 以上。
⑦其結(jie)構緊湊,如使用(yong)行星傳(chuan)動、少齒差(cha)傳(chuan)動,或諧波(bo)齒輪傳(chuan)動,可使部件更(geng)為縮(suo)小,成(cheng)為同(tong)軸線傳(chuan)動。
⑧維護簡便。