轉(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)機(ji)總成(cheng)即轉(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)器(qi),又(you)名轉(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)機(ji)、方向(xiang)(xiang)(xiang)(xiang)(xiang)機(ji),它是(shi)(shi)轉(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)系中最重要的部件。它的作用是(shi)(shi):增大轉(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)盤傳(chuan)到(dao)轉(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)傳(chuan)動(dong)(dong)(dong)機(ji)構的力(li)和改變力(li)的傳(chuan)遞方向(xiang)(xiang)(xiang)(xiang)(xiang)。轉(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)器(qi)的操縱是(shi)(shi)全液(ye)(ye)壓(ya)式(shi)(shi)(shi),也(ye)就是(shi)(shi)說在(zai)轉(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)柱和轉(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)輪之間(jian)沒有機(ji)械(xie)連接,在(zai)轉(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)器(qi)與轉(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)油缸之間(jian)是(shi)(shi)液(ye)(ye)壓(ya)管(guan)或軟管(guan)鏈(lian)接。當轉(zhuan)動(dong)(dong)(dong)方向(xiang)(xiang)(xiang)(xiang)(xiang)盤,轉(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)器(qi)根據(ju)方向(xiang)(xiang)(xiang)(xiang)(xiang)盤轉(zhuan)動(dong)(dong)(dong)比例輸送相(xiang)對的油量(liang),該油量(liang)直接流到(dao)操縱缸相(xiang)應一側,同時另一側的油量(liang)回到(dao)油箱。轉(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)器(qi)按(an)(an)結構形式(shi)(shi)(shi)可(ke)分為:有齒(chi)輪齒(chi)條式(shi)(shi)(shi)轉(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)器(qi)、蝸(gua)桿曲(qu)柄指銷式(shi)(shi)(shi)轉(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)器(qi)、循環(huan)球(qiu)(qiu)-齒(chi)條齒(chi)扇式(shi)(shi)(shi)轉(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)器(qi)、循環(huan)球(qiu)(qiu)曲(qu)柄指銷式(shi)(shi)(shi)轉(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)器(qi)、蝸(gua)桿滾輪式(shi)(shi)(shi)轉(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)器(qi)等。按(an)(an)照助(zhu)力(li)形式(shi)(shi)(shi)又(you)可(ke)以分:為機(ji)械(xie)式(shi)(shi)(shi)(無(wu)助(zhu)力(li))轉(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)器(qi),和動(dong)(dong)(dong)力(li)式(shi)(shi)(shi)(有助(zhu)力(li))轉(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)器(qi)兩(liang)種(zhong),其中動(dong)(dong)(dong)力(li)轉(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)器(qi)又(you)可(ke)以分為氣壓(ya)動(dong)(dong)(dong)力(li)式(shi)(shi)(shi)、液(ye)(ye)壓(ya)動(dong)(dong)(dong)力(li)式(shi)(shi)(shi)、電動(dong)(dong)(dong)助(zhu)力(li)式(shi)(shi)(shi)、電液(ye)(ye)助(zhu)力(li)式(shi)(shi)(shi)等種(zhong)類。
上汽(qi)大(da)通(tong)MAXUS V80是上汽(qi)旗(qi)下的一款商務(wu)車(che),采用了(le)2.5T發動機,滿(man)足商務(wu)接待的需(xu)求
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