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四川省石油管理局川东矿区机修厂钻修车间,在NJ-4型泥浆搅拌器轴的修复过程中,由焊补改为镶套修复,效果良好。 他们在轴的磨损部分,先车出直径为φ90毫米,长为280毫米的轴颈,然后分别镶上两个长度各为140毫米的轴套(见图)。靠近方形截面110×110两侧的两个轴套采用静配合,外侧的两个轴套采用过渡配合。这是便于下次再行修复时,只需更换靠近方形截面两側经常磨损的轴套,外侧的两个轴套因不受磨损,仍可重新使用。
Sichuan Petroleum Administration Chuandong mining mechanic plant drilling shop, in the NJ-4-type mud mixer shaft repair process, welding repair replaced set repair, the effect is good. At the worn part of the shaft, they first made a journal with a diameter of 90 mm and a length of 280 mm and fitted two bushings each of length 140 mm (see picture). Close to the square cross-section 110 × 110 on both sides of the two sleeves with static fit, the outer two sleeves with transition fit. This is to facilitate the next re-repair, simply replace the side of the square cross-section often worn on both sides of the sleeve, the outer two sleeves because they are not worn, can still be re-used.