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我矿新安装的一台ZJK3.5m提升机,其主轴轴颈因保管不善,出现密集型锈斑多处,影响使用,急需处理。主轴长6320mm,自重9000kg,连同组装的卷筒共重40000kg。若送外厂修磨,拆装运输都很困难。现场就地车削加工,又因进刀量微小,很难保证两轴颈的同心度及所要求的粗糙度。因此,我们采用砂带磨削法清除轴颈的锈斑,并已获得成功。自制的机夹固定式电动砂带磨头结构见下图。图中滚轮(10)是籍扭转弹簧(14)的弹
I mine a newly installed ZJK3.5m hoist, the spindle journal due to poor storage, there are many spots of rust, affect the use of urgent treatment. Spindle length 6320mm, weight 9000kg, together with the assembly of the reel weight 40000kg. If you send the factory repair grinding, disassembly and transportation are very difficult. On-site turning, but also because of the small amount of feed, it is difficult to ensure the concentricity of the two journals and the required roughness. Therefore, we use the belt grinding method to remove the journal rust, and has been successful. Homemade machine clip fixed electric belt grinding head structure shown below. Figure wheel (10) is a torsion spring (14) of the bomb