擺(bai)線(xian)針輪減速機(ji)的蝸輪蝸桿傳動(dong)和帶(dai)傳動(dong)有(you)什(shen)么不同(tong)之(zhi)處呢?今天擺(bai)線(xian)針輪減速機(ji)廠家(jia)就來為大家(jia)詳細解答一下(xia)這個(ge)問(wen)題。

　　一、擺(bai)線針輪(lun)減速(su)機蝸桿傳動特點

　　(一)傳動(dong)平穩，無(wu)噪(zao)音。由于蝸桿齒是連(lian)續(xu)不中(zhong)斷(duan)(duan)的(de)(de)螺(luo)旋齒，它與蝸輪(lun)齒嚙合時是連(lian)續(xu)不斷(duan)(duan)的(de)(de)，蝸桿齒沒有(you)進入和退出嚙合的(de)(de)過程，因此工作平穩，沖擊、震(zhen)驚、噪(zao)音小。

　　(二)蝸(gua)桿傳動(dong)效率低，一般以(yi)為蝸(gua)桿傳動(dong)效率比齒輪(lun)傳動(dong)低。尤其是具有(you)自鎖(suo)性的蝸(gua)桿傳動(dong)，其效率在0.5以(yi)下(xia)，一般效率只有(you)0.7～0.9。

　　(三(san))發燒(shao)量(liang)大，齒面(mian)輕(qing)易磨損，本(ben)錢高。

　　(四)具有(you)自鎖性。蝸(gua)桿的螺(luo)旋升(sheng)角(jiao)很小(xiao)時，蝸(gua)桿只能(neng)帶動(dong)蝸(gua)輪傳動(dong)，而蝸(gua)輪不能(neng)帶動(dong)蝸(gua)桿滾動(dong)。

　　(五)傳(chuan)(chuan)動(dong)(dong)比(bi)(bi)大，結構(gou)(gou)緊(jin)湊。蝸(gua)桿(gan)頭數用Z1表示(shi)，蝸(gua)輪齒數用Z2表示(shi)。從傳(chuan)(chuan)動(dong)(dong)比(bi)(bi)公式I=Z2/Z1可(ke)以看出，當(dang)Z1=1，即蝸(gua)桿(gan)為(wei)單頭，蝸(gua)桿(gan)須(xu)轉(zhuan)Z2轉(zhuan)蝸(gua)輪才(cai)轉(zhuan)一轉(zhuan)，因而可(ke)得到很大傳(chuan)(chuan)動(dong)(dong)比(bi)(bi)，一般在(zai)動(dong)(dong)力傳(chuan)(chuan)動(dong)(dong)中，取傳(chuan)(chuan)動(dong)(dong)比(bi)(bi)I=10-80;在(zai)分度機(ji)構(gou)(gou)中，I可(ke)達1000。這樣大的傳(chuan)(chuan)動(dong)(dong)好(hao)比(bi)(bi)用齒輪傳(chuan)(chuan)動(dong)(dong)，則需要采(cai)取多(duo)級(ji)傳(chuan)(chuan)動(dong)(dong)才(cai)行，所以蝸(gua)桿(gan)傳(chuan)(chuan)動(dong)(dong)結構(gou)(gou)緊(jin)湊，體積小、重量輕。

　　二、擺線針(zhen)輪減(jian)速機帶傳動(dong)特點

　　傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)具有(you)結(jie)構簡樸、傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)平穩、能緩(huan)沖吸振、可以在大的軸(zhou)間距(ju)和多軸(zhou)間傳(chuan)(chuan)(chuan)(chuan)(chuan)遞動(dong)力，且其造價低廉、不需潤滑、維(wei)護輕(qing)易等(deng)特點，在近(jin)代機械(xie)傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)中應(ying)用十分廣泛。摩擦(ca)型(xing)帶傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)能過載打滑、運轉噪(zao)聲低，但傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)比不正確(滑動(dong)率在2%以下);同(tong)步(bu)帶傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)可保證傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)同(tong)步(bu)，但對載荷變動(dong)的吸收(shou)能力稍差，高速(su)運轉有(you)噪(zao)聲。帶傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)除用以傳(chuan)(chuan)(chuan)(chuan)(chuan)遞動(dong)力外，有(you)時也用來輸送(song)物料、進行零件的整列等(deng)。