Since the screw conveyor in a cement mill has a high temperature, resulting in softening seal hanging on the sealing cap bearing failure, cement dust into the bearing housing, the bearing sleeve and the coupling shaft junction surface excessive wear.

Bearing sleeve wall thickness of 8mm, and the hardness of the material and the coupling shaft rather, after wear, bearing sleeve rupture, coupling shaft then sag, so off-center axis of the center line of the helical blade, and subsequent blade scratch card sets loose housing or the like Failure to make hanging bearing scrap.

By hanging bearing wear condition of observation and analysis, we found that each hanging bearing damage is just hanging bearing, coupling shaft wear light. So the use of the material is used as a hammer hanging ZGMn13 bearing body with a circular screw will hammer hanging in the screw conveyor housing liquid turbine flowmeter, utilizing the existing shaft hole hammer, the upper screw conveyor shaft diameter Φ90 shaft coupling is worn directly on the shaft hole, both ends of the sleeve is fixedly connected with the card.

Because of the high center of the coupling shaft pump corrosion resistant matte material hardness of less than crusher hammer, so the coupling shaft wear faster, when the coupling shaft wear to a certain extent, may be coupled by the screw axis adjustment of fixed hammer to ensure that the center screw conveyor blade center is consistent with the deceleration of the motor. The use of hammerhead bearing scrap from restructuring, coupling shaft, headed screw is self-processing, the cost compared with the original price of bearing hanging, hanging bearing low 2 to 3 times improved, so that not only reduces the cost and improve the equipment operation rate, the effect is significant.