狼群视频在线

方向機總成簡介

轉(zhuan)(zhuan)向(xiang)(xiang)機(ji)(ji)總成(cheng)即轉(zhuan)(zhuan)向(xiang)(xiang)器(qi)，又(you)名轉(zhuan)(zhuan)向(xiang)(xiang)機(ji)(ji)、方(fang)(fang)向(xiang)(xiang)機(ji)(ji)，它是(shi)轉(zhuan)(zhuan)向(xiang)(xiang)系中最重要的(de)(de)(de)部(bu)件。它的(de)(de)(de)作(zuo)用是(shi)：增大轉(zhuan)(zhuan)向(xiang)(xiang)盤傳到(dao)轉(zhuan)(zhuan)向(xiang)(xiang)傳動(dong)機(ji)(ji)構的(de)(de)(de)力(li)(li)(li)和改變力(li)(li)(li)的(de)(de)(de)傳遞(di)方(fang)(fang)向(xiang)(xiang)。轉(zhuan)(zhuan)向(xiang)(xiang)器(qi)的(de)(de)(de)操縱(zong)是(shi)全(quan)液壓式(shi)(shi)(shi)(shi)，也就是(shi)說在轉(zhuan)(zhuan)向(xiang)(xiang)柱(zhu)和轉(zhuan)(zhuan)向(xiang)(xiang)輪之間沒有機(ji)(ji)械連(lian)接(jie)，在轉(zhuan)(zhuan)向(xiang)(xiang)器(qi)與(yu)轉(zhuan)(zhuan)向(xiang)(xiang)油(you)(you)缸之間是(shi)液壓管(guan)或軟(ruan)管(guan)鏈(lian)接(jie)。當轉(zhuan)(zhuan)動(dong)方(fang)(fang)向(xiang)(xiang)盤，轉(zhuan)(zhuan)向(xiang)(xiang)器(qi)根(gen)據方(fang)(fang)向(xiang)(xiang)盤轉(zhuan)(zhuan)動(dong)比例輸送相對(dui)的(de)(de)(de)油(you)(you)量(liang)，該(gai)油(you)(you)量(liang)直(zhi)接(jie)流到(dao)操縱(zong)缸相應一側，同(tong)時另一側的(de)(de)(de)油(you)(you)量(liang)回到(dao)油(you)(you)箱。轉(zhuan)(zhuan)向(xiang)(xiang)器(qi)按結構形(xing)式(shi)(shi)(shi)(shi)可(ke)分為：有齒(chi)輪齒(chi)條(tiao)式(shi)(shi)(shi)(shi)轉(zhuan)(zhuan)向(xiang)(xiang)器(qi)、蝸桿曲柄(bing)指(zhi)銷式(shi)(shi)(shi)(shi)轉(zhuan)(zhuan)向(xiang)(xiang)器(qi)、循環(huan)球(qiu)-齒(chi)條(tiao)齒(chi)扇式(shi)(shi)(shi)(shi)轉(zhuan)(zhuan)向(xiang)(xiang)器(qi)、循環(huan)球(qiu)曲柄(bing)指(zhi)銷式(shi)(shi)(shi)(shi)轉(zhuan)(zhuan)向(xiang)(xiang)器(qi)、蝸桿滾輪式(shi)(shi)(shi)(shi)轉(zhuan)(zhuan)向(xiang)(xiang)器(qi)等(deng)。按照(zhao)助(zhu)(zhu)力(li)(li)(li)形(xing)式(shi)(shi)(shi)(shi)又(you)可(ke)以(yi)分：為機(ji)(ji)械式(shi)(shi)(shi)(shi)（無助(zhu)(zhu)力(li)(li)(li)）轉(zhuan)(zhuan)向(xiang)(xiang)器(qi)，和動(dong)力(li)(li)(li)式(shi)(shi)(shi)(shi)（有助(zhu)(zhu)力(li)(li)(li)）轉(zhuan)(zhuan)向(xiang)(xiang)器(qi)兩種(zhong)，其中動(dong)力(li)(li)(li)轉(zhuan)(zhuan)向(xiang)(xiang)器(qi)又(you)可(ke)以(yi)分為氣(qi)壓動(dong)力(li)(li)(li)式(shi)(shi)(shi)(shi)、液壓動(dong)力(li)(li)(li)式(shi)(shi)(shi)(shi)、電(dian)動(dong)助(zhu)(zhu)力(li)(li)(li)式(shi)(shi)(shi)(shi)、電(dian)液助(zhu)(zhu)力(li)(li)(li)式(shi)(shi)(shi)(shi)等(deng)種(zhong)類。

總裁(進口)簡介

瑪莎拉蒂(di)總裁（quattroporte）是(shi)意大(da)利汽車制造商瑪莎(sha)拉蒂推出的(de)高性能豪華轎車。1963年(nian)，瑪莎拉蒂(di)首(shou)創“高(gao)性能豪華四門轎車”概(gai)念，第一代(dai)瑪莎拉蒂(di)Quattroporte總裁(cai)轎車問(wen)世(shi)