轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)機(ji)總成(cheng)即(ji)轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)器(qi)(qi)(qi),又(you)名轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)機(ji)、方向(xiang)(xiang)機(ji),它(ta)是(shi)(shi)轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)系中最重要的(de)部件。它(ta)的(de)作(zuo)用是(shi)(shi):增大轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)盤傳(chuan)到轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)傳(chuan)動(dong)機(ji)構的(de)力(li)(li)(li)(li)(li)和改變力(li)(li)(li)(li)(li)的(de)傳(chuan)遞方向(xiang)(xiang)。轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)器(qi)(qi)(qi)的(de)操縱是(shi)(shi)全液(ye)壓(ya)式(shi)(shi),也(ye)就是(shi)(shi)說在轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)柱和轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)輪之(zhi)間(jian)(jian)沒有機(ji)械(xie)連接(jie),在轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)器(qi)(qi)(qi)與(yu)轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)油(you)缸之(zhi)間(jian)(jian)是(shi)(shi)液(ye)壓(ya)管或軟管鏈接(jie)。當轉(zhuan)(zhuan)(zhuan)動(dong)方向(xiang)(xiang)盤,轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)器(qi)(qi)(qi)根據方向(xiang)(xiang)盤轉(zhuan)(zhuan)(zhuan)動(dong)比例輸送相對(dui)的(de)油(you)量(liang),該油(you)量(liang)直接(jie)流(liu)到操縱缸相應(ying)一(yi)側,同時(shi)另一(yi)側的(de)油(you)量(liang)回(hui)到油(you)箱。轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)器(qi)(qi)(qi)按結構形式(shi)(shi)可分(fen)(fen)為(wei):有齒輪齒條式(shi)(shi)轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)器(qi)(qi)(qi)、蝸桿曲(qu)柄指銷式(shi)(shi)轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)器(qi)(qi)(qi)、循(xun)環球(qiu)-齒條齒扇(shan)式(shi)(shi)轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)器(qi)(qi)(qi)、循(xun)環球(qiu)曲(qu)柄指銷式(shi)(shi)轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)器(qi)(qi)(qi)、蝸桿滾輪式(shi)(shi)轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)器(qi)(qi)(qi)等。按照助力(li)(li)(li)(li)(li)形式(shi)(shi)又(you)可以(yi)分(fen)(fen):為(wei)機(ji)械(xie)式(shi)(shi)(無(wu)助力(li)(li)(li)(li)(li))轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)器(qi)(qi)(qi),和動(dong)力(li)(li)(li)(li)(li)式(shi)(shi)(有助力(li)(li)(li)(li)(li))轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)器(qi)(qi)(qi)兩種,其中動(dong)力(li)(li)(li)(li)(li)轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)器(qi)(qi)(qi)又(you)可以(yi)分(fen)(fen)為(wei)氣(qi)壓(ya)動(dong)力(li)(li)(li)(li)(li)式(shi)(shi)、液(ye)壓(ya)動(dong)力(li)(li)(li)(li)(li)式(shi)(shi)、電動(dong)助力(li)(li)(li)(li)(li)式(shi)(shi)、電液(ye)助力(li)(li)(li)(li)(li)式(shi)(shi)等種類。
中(zhong)國重汽VGV U70 PRO定位(wei)中型SUV,其長寬高分別為(wei)4825x1870x1691毫米(mi),軸距達到(dao)2800毫米(mi),空間優勢比較明顯。
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