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推(tui)土機支(zhi)(zhi)重(zhong)輪(lun)(lun) 山推(tui)支(zhi)(zhi)重(zhong)輪(lun)(lun) sd16支(zhi)(zhi)重(zhong)輪(lun)(lun) SD22支(zhi)(zhi)重(zhong)輪(lun)(lun) SD32支(zhi)(zhi)重(zhong)輪(lun)(lun) SD13支(zhi)(zhi)重(zhong)輪(lun)(lun) 支(zhi)(zhi)重(zhong)輪(lun)(lun)價格 支(zhi)(zhi)重(zhong)輪(lun)(lun)件號(hao) 雙邊支(zhi)(zhi)重(zhong)輪(lun)(lun) 原廠(chang)支(zhi)(zhi)重(zhong)輪(lun)(lun)

支重輪的作用

是挖掘機與推土機底盤四輪一帶中的(de)一種，它的(de)主要作用(yong)是支撐(cheng)著挖掘機(ji)與推土(tu)機(ji)的(de)重量，讓(rang)履帶沿著輪子前進。      

全(quan)(quan)輪(lun)(lun)(lun)驅(qu)動(dong)(dong)(dong)也分(fen)兩種(zhong)(zhong)(zhong)形式：一(yi)種(zhong)(zhong)(zhong)是(shi)全(quan)(quan)時(shi)(shi)全(quan)(quan)輪(lun)(lun)(lun)驅(qu)動(dong)(dong)(dong)，即(ji)全(quan)(quan)部時(shi)(shi)間都(dou)是(shi)全(quan)(quan)輪(lun)(lun)(lun)驅(qu)動(dong)(dong)(dong)；另(ling)一(yi)種(zhong)(zhong)(zhong)是(shi)短(duan)時(shi)(shi)全(quan)(quan)輪(lun)(lun)(lun)驅(qu)動(dong)(dong)(dong)，它(ta)可(ke)以(yi)(yi)(yi)切斷某(mou)個橋的動(dong)(dong)(dong)力，以(yi)(yi)(yi)減少燃料消(xiao)耗(hao)和(he)磨損，只(zhi)(zhi)在(zai)需要時(shi)(shi)再(zai)使(shi)用(yong)全(quan)(quan)輪(lun)(lun)(lun)驅(qu)動(dong)(dong)(dong)。過去只(zhi)(zhi)有越野(ye)車(che)采用(yong)4輪(lun)(lun)(lun)驅(qu)動(dong)(dong)(dong)，一(yi)般的越野(ye)車(che)，變速器(qi)后(hou)(hou)(hou)面(mian)(mian)裝有手動(dong)(dong)(dong)分(fen)離器(qi)，前(qian)(qian)(qian)后(hou)(hou)(hou)車(che)軸(zhou)各裝一(yi)個稱為驅(qu)動(dong)(dong)(dong)橋的部件(jian)。變速器(qi)輸出的扭矩通過分(fen)力器(qi)和(he)傳(chuan)(chuan)動(dong)(dong)(dong)軸(zhou)，分(fen)別傳(chuan)(chuan)遞(di)到(dao)前(qian)(qian)(qian)后(hou)(hou)(hou)車(che)軸(zhou)上(shang)的驅(qu)動(dong)(dong)(dong)橋，再(zai)通過驅(qu)動(dong)(dong)(dong)橋將扭矩傳(chuan)(chuan)遞(di)到(dao)輪(lun)(lun)(lun)子(zi)(zi)上(shang)。現(xian)在(zai)轎車(che)的馬力都(dou)比較大，加(jia)速時(shi)(shi)重(zhong)心(xin)后(hou)(hou)(hou)移，全(quan)(quan)車(che)重(zhong)量就會(hui)向后(hou)(hou)(hou)軸(zhou)移動(dong)(dong)(dong)，造成(cheng)前(qian)(qian)(qian)軸(zhou)輕飄。前(qian)(qian)(qian)輪(lun)(lun)(lun)驅(qu)動(dong)(dong)(dong)的轎車(che)即(ji)使(shi)在(zai)良好的路面(mian)(mian)上(shang)也會(hui)打滑，4輪(lun)(lun)(lun)驅(qu)動(dong)(dong)(dong)就可(ke)以(yi)(yi)(yi)防止這種(zhong)(zhong)(zhong)現(xian)象發生(sheng)。轎車(che)上(shang)的4輪(lun)(lun)(lun)驅(qu)動(dong)(dong)(dong)裝置是(shi)常(chang)嚙合式，增加(jia)了(le)粘性(xing)耦合器(qi)，省去了(le)手動(dong)(dong)(dong)分(fen)力器(qi)，自(zi)動(dong)(dong)(dong)將扭矩按需分(fen)配(pei)在(zai)前(qian)(qian)(qian)后(hou)(hou)(hou)輪(lun)(lun)(lun)子(zi)(zi)上(shang)。在(zai)正常(chang)路面(mian)(mian)上(shang)，4輪(lun)(lun)(lun)驅(qu)動(dong)(dong)(dong)裝置將引(yin)(yin)擎(qing)輸出扭矩的92%分(fen)配(pei)到(dao)前(qian)(qian)(qian)輪(lun)(lun)(lun)，8%分(fen)配(pei)到(dao)后(hou)(hou)(hou)輪(lun)(lun)(lun)；在(zai)滑溜的路面(mian)(mian)上(shang)，將至少40%的引(yin)(yin)擎(qing)機(ji)輸出扭矩分(fen)配(pei)給后(hou)(hou)(hou)輪(lun)(lun)(lun)；當前(qian)(qian)(qian)輪(lun)(lun)(lun)開始打滑時(shi)(shi)，前(qian)(qian)(qian)、后(hou)(hou)(hou)輪(lun)(lun)(lun)的轉(zhuan)速差(cha)異會(hui)使(shi)耦合器(qi)中(zhong)的粘液立即(ji)變稠并鎖住耦合器(qi)，從而使(shi)傳(chuan)(chuan)動(dong)(dong)(dong)軸(zhou)只(zhi)(zhi)將扭矩傳(chuan)(chuan)遞(di)至后(hou)(hou)(hou)輪(lun)(lun)(lun)，待前(qian)(qian)(qian)、后(hou)(hou)(hou)輪(lun)(lun)(lun)的轉(zhuan)速差(cha)異消(xiao)失就自(zi)動(dong)(dong)(dong)回復原(yuan)有驅(qu)動(dong)(dong)(dong)形式。

轎車(che)(che)采用電控AWD系統與(yu)傳(chuan)統兩輪(lun)驅(qu)動(dong)(dong)系統相(xiang)比有如(ru)下(xia)特(te)點：①由(you)于現代轎車(che)(che)車(che)(che)速(su)越(yue)來越(yue)高(gao)，特(te)別(bie)在(zai)(zai)高(gao)速(su)公路(lu)上(shang)行駛時由(you)于風阻加大(da)。為限度地(di)傳(chuan)遞(di)驅(qu)動(dong)(dong)力，采用AWD系統可充分(fen)利用車(che)(che)重(zhong)來提高(gao)驅(qu)動(dong)(dong)力。提高(gao)汽車(che)(che)在(zai)(zai)各(ge)種路(lu)面上(shang)行駛的動(dong)(dong)力性。

②傳統(tong)前輪驅(qu)動(dong)(dong)轎車(che)(che)，在(zai)加速轉彎時會出現(xian)轉向(xiang)不足(zu)現(xian)象，傳統(tong)后輪驅(qu)動(dong)(dong)轎車(che)(che)。在(zai)加速轉彎時會出現(xian)轉向(xiang)過(guo)度的(de)傾向(xiang)。而裝有AWD系統(tong)的(de)轎車(che)(che)可根(gen)據汽車(che)(che)行駛狀態分配(pei)前后輪驅(qu)動(dong)(dong)力。極大地改善汽車(che)(che)的(de)轉向(xiang)性能。

③轎(jiao)車AWD系(xi)統(tong)和全(quan)輪驅動專用(yong)的(de)制動防抱死系(xi)統(tong)（ABS）可使轎(jiao)車獲得制動力，限(xian)度地利用(yong)路面(mian)和輪胎之間的(de)摩(mo)擦力。提高汽(qi)車的(de)制動性能。

④在越野和(he)泥濘路面及雨天和(he)雪天道(dao)路易滑(hua)的情況下，AWD系統可防止(zhi)車輛打(da)滑(hua)，提高(gao)汽(qi)車的通過(guo)性(xing)。