轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)機(ji)總成(cheng)即轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi),又名轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)機(ji)、方向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)機(ji),它是轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)系中最重要的部件。它的作用是:增大轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)盤傳(chuan)到轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)傳(chuan)動(dong)(dong)機(ji)構的力(li)和(he)改變力(li)的傳(chuan)遞方向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)。轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi)的操縱(zong)是全液壓(ya)式(shi)(shi),也就(jiu)是說(shuo)在轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)柱和(he)轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)輪之間(jian)沒有(you)機(ji)械(xie)連接(jie),在轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi)與轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)油(you)(you)缸之間(jian)是液壓(ya)管或軟管鏈接(jie)。當轉(zhuan)(zhuan)(zhuan)動(dong)(dong)方向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)盤,轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi)根(gen)據方向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)盤轉(zhuan)(zhuan)(zhuan)動(dong)(dong)比(bi)例輸送(song)相對的油(you)(you)量(liang),該油(you)(you)量(liang)直接(jie)流到操縱(zong)缸相應一(yi)側,同時(shi)另一(yi)側的油(you)(you)量(liang)回(hui)到油(you)(you)箱(xiang)。轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi)按結構形(xing)式(shi)(shi)可(ke)分(fen)為:有(you)齒輪齒條式(shi)(shi)轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi)、蝸桿曲(qu)柄指(zhi)銷(xiao)式(shi)(shi)轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi)、循環球(qiu)-齒條齒扇式(shi)(shi)轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi)、循環球(qiu)曲(qu)柄指(zhi)銷(xiao)式(shi)(shi)轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi)、蝸桿滾輪式(shi)(shi)轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi)等(deng)。按照助(zhu)(zhu)力(li)形(xing)式(shi)(shi)又可(ke)以分(fen):為機(ji)械(xie)式(shi)(shi)(無助(zhu)(zhu)力(li))轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi),和(he)動(dong)(dong)力(li)式(shi)(shi)(有(you)助(zhu)(zhu)力(li))轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi)兩(liang)種,其中動(dong)(dong)力(li)轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi)又可(ke)以分(fen)為氣(qi)壓(ya)動(dong)(dong)力(li)式(shi)(shi)、液壓(ya)動(dong)(dong)力(li)式(shi)(shi)、電(dian)動(dong)(dong)助(zhu)(zhu)力(li)式(shi)(shi)、電(dian)液助(zhu)(zhu)力(li)式(shi)(shi)等(deng)種類。
歐(ou)寶歐(ou)捷(jie)利小面包的(de)優勢(shi)在于其車身(shen)(shen)小巧、停車方便,內(nei)部設計精巧靈(ling)活、空(kong)間(jian)(jian)寬闊、裝卸(xie)貨物方便。良好的(de)安全性能(neng)和(he)低耗油(you)深受(shou)消費者歡迎(ying)。德國汽車安全組織(zhi)對其進行缺點(dian)檢驗時也沒有發(fa)現太大的(de)弱點(dian),只是由于其車身(shen)(shen)小,駕(jia)駛(shi)空(kong)間(jian)(jian)狹窄,舒適(shi)度欠(qian)缺。另外,歐(ou)寶歐(ou)捷(jie)利車頂較高,不太適(shi)宜在頂上架設貨物架,以免在高度受(shou)限的(de)地(di)方受(shou)阻。
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