国产W—1001型,苏产—1004型,波产KU—1001型等型号起重机都是15吨履带吊,其构造基本相同。在吊装作业中,它们的掉臂杆事故时有发生,后果严重,轻者毁物损车,重者造成人员伤亡。1.传动部分构造(见图1) 锥形离合器7、8的外摩擦毂通过花键和水平横轴6滑动配合,其内摩擦毂分别与锥形齿轮9焊接成一体空套在水平横轴上。锥形齿 Domestic W-1001-type, Soviet-made -1004 type, wave production KU-1001-type cranes and other models are 15-ton crawler crane, its structure is basically the same. In the hoisting operation, they have accidentally dropped the lever arm, the consequences of serious consequences, light damage to the car damage, heavy casualties caused. 1. Transmission structure (see Figure 1) cone friction clutch hub 7,8 by spline and horizontal horizontal shaft 6 sliding fit, the inner friction hub, respectively welded with the bevel gear 9 hollowed out on the horizontal axis on. Tapered teeth