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優質蝸輪蝸桿

蝸輪蝸桿的特點

1,傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)比大(da)(da),結(jie)構緊(jin)湊。蝸(gua)(gua)桿頭數(shu)用(yong)Z1表示(shi)(一般Z1=1~4),蝸(gua)(gua)輪齒數(shu)用(yong)Z2表示(shi)。從(cong)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)比公(gong)式I=Z2/Z1可以(yi)看出,當(dang)Z1=1,即(ji)蝸(gua)(gua)桿為單頭,蝸(gua)(gua)桿須(xu)轉(zhuan)(zhuan)Z2轉(zhuan)(zhuan)蝸(gua)(gua)輪才轉(zhuan)(zhuan)一轉(zhuan)(zhuan),因(yin)而可得到很大(da)(da)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)比,一般在動(dong)(dong)(dong)力(li)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)中,取傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)比I=10-80;在分度機(ji)構中,I可達1000。這樣大(da)(da)的傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)比如用(yong)齒輪傳(chuan)(chuan)(chuan)動(dong)(dong)(dong),則需(xu)要(yao)采取多(duo)級(ji)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)才行,所以(yi)蝸(gua)(gua)桿傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)結(jie)構緊(jin)湊,體積小、重量輕。

2,傳動(dong)平穩,無噪音。因為蝸(gua)桿齒(chi)是(shi)(shi)連(lian)續(xu)不(bu)間斷的(de)螺(luo)旋齒(chi),它與蝸(gua)輪齒(chi)嚙合時是(shi)(shi)連(lian)續(xu)不(bu)斷的(de),蝸(gua)桿齒(chi)沒有進入和(he)退(tui)出嚙合的(de)過(guo)程,因此工作平穩,沖擊、震動(dong)、噪音小。

3,蝸桿(gan)傳(chuan)動(dong)具(ju)有自鎖(suo)性。蝸桿(gan)的螺(luo)旋升角很小時(shi),蝸桿(gan)只能(neng)帶動(dong)蝸輪(lun)傳(chuan)動(dong),而蝸輪(lun)不(bu)能(neng)帶動(dong)蝸桿(gan)轉動(dong)。  

4,蝸桿的軸向力較(jiao)大(da)。


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