轉(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)機(ji)(ji)總成即轉(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi),又名轉(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)機(ji)(ji)、方(fang)向(xiang)(xiang)(xiang)(xiang)(xiang)機(ji)(ji),它是(shi)轉(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)系(xi)中最重要的部件。它的作(zuo)用(yong)是(shi):增大(da)轉(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)盤(pan)傳到(dao)轉(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)傳動(dong)(dong)(dong)機(ji)(ji)構的力(li)和(he)改變力(li)的傳遞方(fang)向(xiang)(xiang)(xiang)(xiang)(xiang)。轉(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi)的操縱是(shi)全液壓式(shi)(shi),也就是(shi)說在轉(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)柱和(he)轉(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)輪(lun)之間(jian)沒有機(ji)(ji)械連(lian)接(jie),在轉(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi)與轉(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)油(you)(you)缸之間(jian)是(shi)液壓管或軟管鏈接(jie)。當轉(zhuan)(zhuan)動(dong)(dong)(dong)方(fang)向(xiang)(xiang)(xiang)(xiang)(xiang)盤(pan),轉(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi)根據方(fang)向(xiang)(xiang)(xiang)(xiang)(xiang)盤(pan)轉(zhuan)(zhuan)動(dong)(dong)(dong)比例(li)輸(shu)送相對的油(you)(you)量(liang),該油(you)(you)量(liang)直(zhi)接(jie)流到(dao)操縱缸相應一(yi)側,同(tong)時另一(yi)側的油(you)(you)量(liang)回到(dao)油(you)(you)箱。轉(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi)按結(jie)構形式(shi)(shi)可分為(wei):有齒(chi)輪(lun)齒(chi)條(tiao)式(shi)(shi)轉(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi)、蝸桿曲(qu)柄指銷式(shi)(shi)轉(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi)、循環(huan)球(qiu)-齒(chi)條(tiao)齒(chi)扇式(shi)(shi)轉(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi)、循環(huan)球(qiu)曲(qu)柄指銷式(shi)(shi)轉(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi)、蝸桿滾輪(lun)式(shi)(shi)轉(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi)等(deng)。按照助(zhu)力(li)形式(shi)(shi)又可以分:為(wei)機(ji)(ji)械式(shi)(shi)(無助(zhu)力(li))轉(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi),和(he)動(dong)(dong)(dong)力(li)式(shi)(shi)(有助(zhu)力(li))轉(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi)兩種,其中動(dong)(dong)(dong)力(li)轉(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi)又可以分為(wei)氣壓動(dong)(dong)(dong)力(li)式(shi)(shi)、液壓動(dong)(dong)(dong)力(li)式(shi)(shi)、電動(dong)(dong)(dong)助(zhu)力(li)式(shi)(shi)、電液助(zhu)力(li)式(shi)(shi)等(deng)種類。
寶馬3系335LI是德國知名汽車品牌寶馬旗下的一款4門5座的轎車,由中國汽車產商華晨寶馬代理組裝生產。車身規格為4753*1811*1455,配用3.0T發動機,馬力可達306匹,官方公布的0-100km/h加速用時為5.7秒。
寶馬3系作為寶馬集團最新一代產品,第五代BMW 3系再次為同級轎車設立了新標準,其美學設計、工程學設計、高科技內涵,以及豪華舒適性和安全性等方面都達到了全新的境界。寶馬3系價格定位將體現其高檔運動轎車的市場定位,并反映其高檔產品內涵。
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