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我矿使用的W-1002挖掘机的工作装置为正铲。其铲斗由斗前壁(材质ZGMn13)和斗后壁(材质ZG25)焊接而成。在斗后壁上有和斗前滑轮壳联接的φ70D_6销孔2个,有分别和直铲臂、斗底相联接的φ55D_6销孔8个。挖掘机工作一段时间(一般是一个中修期后),由于销孔磨损增大使铲斗在铲装时发生摇晃,影响挖掘机的作业效率。修复铲斗销孔达到原配合尺寸,有三个方法:①堆焊磨损的销孔,镗到原配合尺寸;②镗大销孔,按原配合公差另配新销轴;③镗大销孔,镶套达到原配合尺寸。最后一种修复方法
The working equipment of the W-1002 excavator used by mine is a front shovel. The bucket by the bucket front wall (material ZGMn13) and bucket back wall (material ZG25) welded together. There are two φ70D_6 pin holes connected to the front pulley shell on the rear wall of the bucket, and eight φ55D_6 pin holes respectively connected to the straight bucket arm and the bottom of the bucket. Excavators work for a period of time (usually after a repair period), due to increased pin hole wear shovel buckets shovel, affecting excavator operating efficiency. Repair bucket pin hole to reach the original with the size, there are three ways: ① surfacing wear pin hole, boring to the original size; ② large bore hole boring, according to the original with the new tolerance with the new pin; Inlaid to reach the original with the size. The last method of repair