履(lv)帶底盤廣泛(fan)應(ying)用于工(gong)程機(ji)械、拖拉(la)機(ji)等(deng)野外作業車輛。行(xing)走條件惡劣(lie)，要求該行(xing)走機(ji)構(gou)具有足夠(gou)的強度(du)和(he)剛度(du)，并具有良好的行(xing)進(jin)和(he)轉向能力。

履帶底盤結構組成

　　履(lv)(lv)帶底(di)盤與(yu)地面接(jie)觸，驅動(dong)(dong)(dong)(dong)(dong)輪(lun)不與(yu)地面接(jie)觸。當馬(ma)達(da)帶動(dong)(dong)(dong)(dong)(dong)驅動(dong)(dong)(dong)(dong)(dong)輪(lun)轉動(dong)(dong)(dong)(dong)(dong)時，驅動(dong)(dong)(dong)(dong)(dong)輪(lun)在減速器(qi)驅動(dong)(dong)(dong)(dong)(dong)轉矩(ju)的(de)作用(yong)下, 通(tong)過(guo)驅動(dong)(dong)(dong)(dong)(dong)輪(lun)上的(de)輪(lun)齒和履(lv)(lv)帶鏈之間的(de)嚙合(he), 連續不斷地把履(lv)(lv)帶從后(hou)方(fang)卷起。接(jie)地那部分(fen)履(lv)(lv)帶給地面一(yi)個向(xiang)后(hou)的(de)作用(yong)力(li)(li), 而地面相(xiang)應地給履(lv)(lv)帶一(yi)個向(xiang)前(qian)的(de)反(fan)作用(yong)力(li)(li), 這個反(fan)作用(yong)是推動(dong)(dong)(dong)(dong)(dong)機器(qi)向(xiang)前(qian)行駛的(de)驅動(dong)(dong)(dong)(dong)(dong)力(li)(li)。當驅動(dong)(dong)(dong)(dong)(dong)力(li)(li)足以克服行走(zou)阻力(li)(li)時, 支重輪(lun)就在履(lv)(lv)帶上表(biao)面向(xiang)前(qian)滾動(dong)(dong)(dong)(dong)(dong), 從而使機器(qi)向(xiang)前(qian)行駛。整(zheng)機履(lv)(lv)帶行走(zou)機構的(de)前(qian)后(hou)履(lv)(lv)帶均可單獨(du)轉向(xiang)，從而使其轉彎半徑(jing)更小。

　　履帶底盤(pan)有(you)“四輪一帶”(驅(qu)動(dong)輪、支(zhi)重輪、導向輪、拖帶輪及履(lv)帶)，張(zhang)緊裝置(zhi)和緩沖(chong)彈簧，行走機構組成。