装载机在进行作业时，由于铲斗不停地运动，使其与动臂的连接处不停地磨损，致使装载机在工作中由于动臂铰接点处（见图1）间隙的不断增大，影响其工作效率，主要是轴6与轴套4在运转中密封性能差、污物易进入而使润滑不好，从而加剧了轴承的磨损，使用一段时间后就须更换轴和轴 Loaders in the operation, because the bucket kept moving, so keep its connection with the boom worn, causing the loader in the work due to the boom hinge point (see Figure 1) the gap increases , Affecting their work efficiency, mainly shaft 6 and sleeve 4 in the operation of sealing performance is poor, dirt easy to enter and lubrication is not good, thus exacerbating the bearing wear and tear, the use of the shaft and the shaft must be replaced after a period of time