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中特工程(圖)_挖掘機履帶驅動輪_寧夏履帶驅動輪：

推土機(ji)支(zhi)(zhi)重輪(lun) 山推支(zhi)(zhi)重輪(lun) sd16支(zhi)(zhi)重輪(lun) SD22支(zhi)(zhi)重輪(lun) SD32支(zhi)(zhi)重輪(lun) SD13支(zhi)(zhi)重輪(lun) 支(zhi)(zhi)重輪(lun)價格(ge) 支(zhi)(zhi)重輪(lun)件號 雙邊支(zhi)(zhi)重輪(lun) 原廠支(zhi)(zhi)重輪(lun)

支重輪的作用

是挖掘機與推土機底盤四輪一帶中的一種(zhong)，它的主要作用是(shi)支撐著挖(wa)掘機與推土機的重量(liang)，讓履(lv)帶沿著輪子前進(jin)。      

后(hou)(hou)(hou)輪驅動（RWD）：豪華轎(jiao)車通常采用后(hou)(hou)(hou)驅，重量(liang)分配接近于50∶50，提(ti)供了更平穩的(de)駕駛。RWD與FWD驅動情況正相反，操控性(xing)能有所提(ti)高。當(dang)加速(su)時車身(shen)重心(xin)向(xiang)后(hou)(hou)(hou)轉移(yi)，這正是(shi)你所希(xi)望的(de)，因為后(hou)(hou)(hou)輪主管(guan)牽引力，前(qian)輪主管(guan)汽(qi)車方向(xiang)。你還(huan)(huan)可以(yi)在彎道加速(su)。這并不是(shi)說RWD在結(jie)構(gou)上(shang)就好(hao)，它(ta)也存在缺陷，如從(cong)前(qian)到后(hou)(hou)(hou)的(de)傳動軸（使車內地板(ban)從(cong)前(qian)到后(hou)(hou)(hou)隆起(qi)），還(huan)(huan)有一個很大的(de)差速(su)器在后(hou)(hou)(hou)部，增加了重量(liang)和成(cheng)本，它(ta)同樣不適應全天候駕駛。

分時(shi)(shi)驅(qu)(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)分時(shi)(shi)驅(qu)(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)就(jiu)(jiu)是由駕(jia)(jia)駛(shi)員(yuan)根(gen)據(ju)路(lu)(lu)(lu)面(mian)情況(kuang)(kuang)(kuang)，選(xuan)(xuan)擇(ze)四(si)驅(qu)(qu)(qu)(qu)(qu)或者(zhe)兩驅(qu)(qu)(qu)(qu)(qu)，這也是一(yi)(yi)般越(yue)野(ye)車或四(si)驅(qu)(qu)(qu)(qu)(qu)SUV 常見的驅(qu)(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)模式(shi)。分時(shi)(shi)驅(qu)(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)較(jiao)(jiao)(jiao)大(da)的特點(dian)就(jiu)(jiu)是人工操作，由駕(jia)(jia)駛(shi)員(yuan)根(gen)據(ju)路(lu)(lu)(lu)面(mian)情況(kuang)(kuang)(kuang)通過接通或斷開分動(dong)(dong)(dong)(dong)(dong)(dong)(dong)器來變化兩輪(lun)驅(qu)(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)或四(si)輪(lun)驅(qu)(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)模式(shi)，較(jiao)(jiao)(jiao)大(da)的優(you)點(dian)就(jiu)(jiu)是可以(yi)根(gen)據(ju)實(shi)際(ji)情況(kuang)(kuang)(kuang)來選(xuan)(xuan)取驅(qu)(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)模式(shi)，比較(jiao)(jiao)(jiao)經(jing)(jing)濟(ji)。就(jiu)(jiu)拿普通的越(yue)野(ye)車而言，一(yi)(yi)般都有(you)三種驅(qu)(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)模式(shi)可以(yi)選(xuan)(xuan)擇(ze)：在公路(lu)(lu)(lu)上行駛(shi)使(shi)(shi)用(yong)(yong)2H 高(gao)速兩輪(lun)驅(qu)(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)檔(dang)，當遇到雨雪路(lu)(lu)(lu)況(kuang)(kuang)(kuang)時(shi)(shi)選(xuan)(xuan)擇(ze)4H 高(gao)速驅(qu)(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)增(zeng)強(qiang)車輛的附(fu)著力(li)(li)和操控(kong)性(xing)，而面(mian)對(dui)惡劣路(lu)(lu)(lu)況(kuang)(kuang)(kuang)的挑戰(zhan)時(shi)(shi)又可采用(yong)(yong)4L 低速四(si)輪(lun)驅(qu)(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)，使(shi)(shi)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)力(li)(li)作用(yong)(yong)在全部四(si)個車輪(lun)上，從而降(jiang)低了對(dui)每個輪(lun)胎(tai)附(fu)著力(li)(li)的要求，減(jian)小了轉彎時(shi)(shi)車輪(lun)空轉的幾率，發動(dong)(dong)(dong)(dong)(dong)(dong)(dong)機制動(dong)(dong)(dong)(dong)(dong)(dong)(dong)能力(li)(li)也得以(yi)增(zeng)強(qiang)，極大(da)地(di)提高(gao)了車輛在崎嶇或光滑路(lu)(lu)(lu)面(mian)行駛(shi)時(shi)(shi)在油門突然關閉的情況(kuang)(kuang)(kuang)下的可控(kong)性(xing)。優(you)點(dian)是可根(gen)據(ju)實(shi)際(ji)情況(kuang)(kuang)(kuang)來選(xuan)(xuan)取驅(qu)(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)模式(shi)，比較(jiao)(jiao)(jiao)經(jing)(jing)濟(ji)；缺點(dian)是其機械結構比較(jiao)(jiao)(jiao)復(fu)雜，駕(jia)(jia)駛(shi)員(yuan)要具有(you)一(yi)(yi)定的經(jing)(jing)驗才能掌握(wo)好切換時(shi)(shi)機。