轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)機(ji)(ji)(ji)總(zong)成即(ji)轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi)(qi)(qi)(qi),又名轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)機(ji)(ji)(ji)、方向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)機(ji)(ji)(ji),它是(shi)(shi)轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)系中最重(zhong)要的(de)(de)(de)部件。它的(de)(de)(de)作用是(shi)(shi):增大轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)盤傳到(dao)轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)傳動(dong)(dong)機(ji)(ji)(ji)構(gou)的(de)(de)(de)力和改變力的(de)(de)(de)傳遞方向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)。轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)操(cao)縱(zong)是(shi)(shi)全液(ye)壓式(shi)(shi)(shi),也就(jiu)是(shi)(shi)說在轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)柱和轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)輪之(zhi)間(jian)沒有(you)(you)機(ji)(ji)(ji)械連(lian)接,在轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi)(qi)(qi)(qi)與轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)油缸(gang)之(zhi)間(jian)是(shi)(shi)液(ye)壓管或軟管鏈接。當轉(zhuan)(zhuan)(zhuan)動(dong)(dong)方向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)盤,轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi)(qi)(qi)(qi)根(gen)據(ju)方向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)盤轉(zhuan)(zhuan)(zhuan)動(dong)(dong)比例輸送(song)相對的(de)(de)(de)油量(liang)(liang),該油量(liang)(liang)直(zhi)接流到(dao)操(cao)縱(zong)缸(gang)相應一側,同時另一側的(de)(de)(de)油量(liang)(liang)回到(dao)油箱。轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi)(qi)(qi)(qi)按結(jie)構(gou)形式(shi)(shi)(shi)可(ke)(ke)分為:有(you)(you)齒輪齒條式(shi)(shi)(shi)轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi)(qi)(qi)(qi)、蝸桿曲柄指銷(xiao)式(shi)(shi)(shi)轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi)(qi)(qi)(qi)、循(xun)環球-齒條齒扇(shan)式(shi)(shi)(shi)轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi)(qi)(qi)(qi)、循(xun)環球曲柄指銷(xiao)式(shi)(shi)(shi)轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi)(qi)(qi)(qi)、蝸桿滾輪式(shi)(shi)(shi)轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi)(qi)(qi)(qi)等(deng)。按照助(zhu)(zhu)(zhu)力形式(shi)(shi)(shi)又可(ke)(ke)以分:為機(ji)(ji)(ji)械式(shi)(shi)(shi)(無助(zhu)(zhu)(zhu)力)轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi)(qi)(qi)(qi),和動(dong)(dong)力式(shi)(shi)(shi)(有(you)(you)助(zhu)(zhu)(zhu)力)轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi)(qi)(qi)(qi)兩種,其中動(dong)(dong)力轉(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi)(qi)(qi)(qi)又可(ke)(ke)以分為氣壓動(dong)(dong)力式(shi)(shi)(shi)、液(ye)壓動(dong)(dong)力式(shi)(shi)(shi)、電(dian)動(dong)(dong)助(zhu)(zhu)(zhu)力式(shi)(shi)(shi)、電(dian)液(ye)助(zhu)(zhu)(zhu)力式(shi)(shi)(shi)等(deng)種類。
很多鐘情于皮(pi)卡承(cheng)運能力(li)的消費者(zhe)不(bu)得不(bu)選(xuan)擇了廂式客車(che)(che)來替代,但在載貨(huo)(huo)能力(li)和(he)通行能力(li)上,它們卻遠不(bu)如(ru)皮(pi)卡的實力(li)級(ji)別(bie)。說明它已經從一部(bu)歸屬貨(huo)(huo)車(che)(che)范(fan)疇的純正皮(pi)卡變成(cheng)了一部(bu)歸屬客車(che)(che)范(fan)疇的多功能商(shang)用車(che)(che)。車(che)(che)型外(wai)邊(bian)比較(jiao)簡(jian)單(dan)、內飾寬廣(guang)
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