行(xing)走減(jian)(jian)(jian)速(su)機(ji)(ji)安裝在(zai)履帶(dai)架上，由電(dian)機(ji)(ji)牽引驅(qu)動(dong)(dong)挖掘機(ji)(ji)的(de)走行(xing)；回(hui)轉(zhuan)減(jian)(jian)(jian)速(su)機(ji)(ji)安裝在(zai)回(hui)轉(zhuan)平(ping)臺上，為行(xing)星結(jie)構(gou)一(yi)級減(jian)(jian)(jian)速(su)機(ji)(ji)，電(dian)機(ji)(ji)驅(qu)動(dong)(dong)減(jian)(jian)(jian)速(su)機(ji)(ji)，減(jian)(jian)(jian)速(su)機(ji)(ji)輸出軸通(tong)過(guo)聯(lian)接回(hui)轉(zhuan)立軸齒輪與(yu)回(hui)轉(zhuan)大(da)齒圈(quan)嚙合(he)，實(shi)現挖掘機(ji)(ji)的(de)回(hui)轉(zhuan)運(yun)動(dong)(dong)；提(ti)升減(jian)(jian)(jian)速(su)機(ji)(ji)為挖掘機(ji)(ji)提(ti)升機(ji)(ji)構(gou)的(de)主傳動(dong)(dong)設備，用于驅(qu)動(dong)(dong)提(ti)升卷(juan)筒；推壓減(jian)(jian)(jian)速(su)機(ji)(ji)位(wei)于起重臂上，減(jian)(jian)(jian)速(su)機(ji)(ji)輸出軸聯(lian)接小齒輪與(yu)斗(dou)桿(gan)齒條嚙合(he)，驅(qu)動(dong)(dong)齒條左(zuo)往復運(yun)動(dong)(dong)，與(yu)提(ti)升機(ji)(ji)構(gou)一(yi)起工作實(shi)現鏟斗(dou)挖掘作業。