ZL30C型装载机工作装置铰接点的销轴防转结构如图1所示。装配时依靠螺栓3将销轴组件压紧在机架1上。由于在机加工和焊接过程中,机架铰接孔轴线与端面A、销轴轴线与端面B不可能完全垂直,因此在装配后,销轴可能被卡死或螺栓将销轴与机架紧固成一体,使销轴在轴向和径向均不能微动。长期的户外作业使机架铰接孔表面容易锈蚀,维修时销轴拆卸非常 ZL30C-type loader working hinge pin pivot anti-rotation structure shown in Figure 1. The assembly relies on the bolt 3 to press the pin assembly against the frame 1. Due to the fact that the axis of the articulation of the frame and the end face A, the axis of the pin and the end face B can not be completely vertical during machining and welding, the pin may be stuck or the pin may be fastened to the frame after assembly Into one, so that the pin axis and radial can not be fretting. Long-term outdoor operations make the surface of the rack hinged hole easy to rust, the pin is very difficult to remove the repair