我厂生产的ZL40、ZL50型装载机铲斗焊有收铲和卸料用的上下限位块各一个。限位块既可限定铲斗转动的角度，又可在卸料时，使铲斗内的物料卸净，即通过操纵铲斗，使铲斗限位块来回碰击动臂板，振落残留在铲斗里的物料。眼位块的这一作用在装载机的工作中是非常重要的。在装载机 I plant production ZL40, ZL50 loader bucket welding shovel and unloading with the upper and lower limit block each one. The limit block can limit the rotation angle of the bucket, and can also discharge the material in the bucket when discharging, that is, by operating the bucket, the bucket limit block touches the moving arm back and forth, Material in the bucket. This function of the eye block is very important in the work of the loader. In the loader