通过对矿井瓦斯泵泵轴磨损的原因进行分析,得出泵轴轴径和轴承内圈发生的纹状磨损为蠕动磨损,在泵轴轴径上类似划痕的凹坑为蠕动磨损积聚一定程度后发生的磨损物压溃导致。分析认为润滑不良继而引起轴承发热,轴承内圈膨胀是这次事故的主要原因。 By analyzing the reason of wear of gas pump shaft of mine gas pump, it is concluded that the shaft wear of shaft diameter and bearing inner ring is peristaltic wear, and the pits with similar scratches on the axis of pump shaft accumulate to a certain degree After the wear and tear caused by crushing goods. Analysis that poor lubrication and then cause the bearing fever, bearing inner ring expansion is the main reason for the accident.