轉(zhuan)(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)機(ji)總(zong)成即轉(zhuan)(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi),又(you)(you)名轉(zhuan)(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)機(ji)、方(fang)(fang)向(xiang)(xiang)(xiang)(xiang)機(ji),它是轉(zhuan)(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)系中(zhong)(zhong)最重要的部件。它的作用(yong)是:增(zeng)大轉(zhuan)(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)盤傳(chuan)(chuan)到(dao)(dao)轉(zhuan)(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)傳(chuan)(chuan)動(dong)(dong)(dong)(dong)機(ji)構的力(li)(li)(li)和改變力(li)(li)(li)的傳(chuan)(chuan)遞方(fang)(fang)向(xiang)(xiang)(xiang)(xiang)。轉(zhuan)(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi)的操(cao)縱(zong)是全液壓(ya)式(shi)(shi)(shi),也就是說在(zai)轉(zhuan)(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)柱和轉(zhuan)(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)輪(lun)(lun)之間沒有機(ji)械連接(jie)(jie),在(zai)轉(zhuan)(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi)與(yu)轉(zhuan)(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)油(you)缸(gang)之間是液壓(ya)管或軟管鏈接(jie)(jie)。當轉(zhuan)(zhuan)(zhuan)(zhuan)動(dong)(dong)(dong)(dong)方(fang)(fang)向(xiang)(xiang)(xiang)(xiang)盤,轉(zhuan)(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi)根據(ju)方(fang)(fang)向(xiang)(xiang)(xiang)(xiang)盤轉(zhuan)(zhuan)(zhuan)(zhuan)動(dong)(dong)(dong)(dong)比例輸送相對的油(you)量,該(gai)油(you)量直(zhi)接(jie)(jie)流到(dao)(dao)操(cao)縱(zong)缸(gang)相應(ying)一側,同時另一側的油(you)量回到(dao)(dao)油(you)箱。轉(zhuan)(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi)按結構形式(shi)(shi)(shi)可分為(wei):有齒輪(lun)(lun)齒條式(shi)(shi)(shi)轉(zhuan)(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi)、蝸桿(gan)曲柄指銷式(shi)(shi)(shi)轉(zhuan)(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi)、循(xun)(xun)環(huan)球-齒條齒扇(shan)式(shi)(shi)(shi)轉(zhuan)(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi)、循(xun)(xun)環(huan)球曲柄指銷式(shi)(shi)(shi)轉(zhuan)(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi)、蝸桿(gan)滾輪(lun)(lun)式(shi)(shi)(shi)轉(zhuan)(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi)等。按照助(zhu)(zhu)力(li)(li)(li)形式(shi)(shi)(shi)又(you)(you)可以(yi)分:為(wei)機(ji)械式(shi)(shi)(shi)(無(wu)助(zhu)(zhu)力(li)(li)(li))轉(zhuan)(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi),和動(dong)(dong)(dong)(dong)力(li)(li)(li)式(shi)(shi)(shi)(有助(zhu)(zhu)力(li)(li)(li))轉(zhuan)(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi)兩種,其中(zhong)(zhong)動(dong)(dong)(dong)(dong)力(li)(li)(li)轉(zhuan)(zhuan)(zhuan)(zhuan)向(xiang)(xiang)(xiang)(xiang)器(qi)(qi)(qi)又(you)(you)可以(yi)分為(wei)氣(qi)壓(ya)動(dong)(dong)(dong)(dong)力(li)(li)(li)式(shi)(shi)(shi)、液壓(ya)動(dong)(dong)(dong)(dong)力(li)(li)(li)式(shi)(shi)(shi)、電動(dong)(dong)(dong)(dong)助(zhu)(zhu)力(li)(li)(li)式(shi)(shi)(shi)、電液助(zhu)(zhu)力(li)(li)(li)式(shi)(shi)(shi)等種類(lei)。
全新(xin)沃爾沃XC70集中體現了(le)沃爾沃安全、品(pin)質、環保的品(pin)牌價值(zhi),同時融(rong)入了(le)設計、舒適(shi)、駕(jia)駛樂趣三個方面的訴(su)求,為廣大車主打造出全新(xin)北歐豪華主義的安全舒適(shi)座駕(jia)。
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