貨船吊(diao)機工作強度(du)為(wei)輕型(xing)，起(qi)重(zhong)機由立柱，回轉臂回轉驅動(dong)(dong)(dong)裝置及電動(dong)(dong)(dong)葫(hu)蘆(lu)組(zu)成，立柱下端通(tong)過(guo)地腳螺(luo)栓固(gu)定在(zai)混凝土基礎上(shang)，由擺線(xian)針(zhen)輪減速裝置來驅動(dong)(dong)(dong)旋臂回轉，電動(dong)(dong)(dong)葫(hu)蘆(lu)在(zai)旋臂工字鋼上(shang)作左(zuo)右直線(xian)運行(xing)，并起(qi)吊(diao)重(zhong)物。起(qi)重(zhong)機旋臂為(wei)空心(xin)型(xing)鋼結構(gou)，自重(zhong)輕，跨度(du)大(da)，起(qi)重(zhong)量大(da)，經濟。內置式行(xing)旋臂吊(diao)MODE型(xing)走機構(gou)，采用帶(dai)滾動(dong)(dong)(dong)軸承的(de)特種(zhong)工程(cheng)塑料走輪，摩擦力小，行(xing)走輕快;結構(gou)尺寸小，特別有利(li)于提高吊(diao)鉤行(xing)程(cheng)。