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我矿从尾砂坝內回收锡流程,采用广东冶金局黄金矿山机修厂制造的2吋自吸悬吊式砂泵作为采矿设备。该泵自投入连续生产以来,运转很不正常,其原因是电动机输出端轴承频繁失效。据统计,此轴承最长使用寿命为68小时,最短寿命为33个小时。轴承的失效形式约70％为内圈开裂,30％为内圈保持架同时开裂。轴承的频繁失效,不但增加了砂泵的维修
I mine recovery of tin from the tailings sand dam process, the Guangdong Metallurgical Bureau gold mine repair shop manufacturing 2-inch self-priming suspended sand pump as a mining equipment. The pump since the continuous production into operation, the operation is not normal, the reason is frequent motor output bearing failure. According to statistics, this bearing the longest service life of 68 hours, the shortest life expectancy of 33 hours. About 70% of the failure form of the bearing inner ring cracking, 30% of the inner cage while cracking. Bearing frequent failure, not only increased the sand pump maintenance