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广东拖拉机制造厂铸铁车间使用青岛铸造机械厂制造的Q365型抛丸清理室已有十多年了,由于该设备生产率高,所以很受欢迎。但在使用中,因为抛头里顶紧叶片的顶紧螺钉的螺纹因受铁丸打击发生变形,再加上碎铁丸楔在螺纹间隙中,往往出现螺钉无法拧出甚至拧断在支架上的情况。这时,机修工只好在原处钻孔来修复支架上的螺纹。如果该处的螺纹已经损坏,就得把螺纹改大,这样不仅修理困难,而且造成停产,还因为改用较大的螺钉而影响抛头叶轮的平衡。
It has been more than ten years since the Q365 type shot blasting cleaning room made by Qingdao Foundry Machinery Factory has been used in the cast iron workshop of the Guangdong Tractor Manufacturing Factory and is very popular due to its high productivity. However, in use, because the top of the blade in the top tight screw thread due to the impact of the iron ball deformation, coupled with broken iron pill wedge in the thread gap, often appear screw can not screw out even twist off the bracket Case. At this time, the mechanic had to drill in place to repair the thread on the bracket. If the thread here has been damaged, you have to change the thread, so not only difficult to repair, but also caused the shutdown, but also because the switch to a larger screw impeller impeller balance.