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Limestone Counterattack Failure…

Limestone Counterattack Failure Treatment

2026-09-07 08:29
2026-09-07 12:51

Limestone Counterattack Failure Solution: 1. ** Dealing with the Flying Phenomenon ** - ** A large amount of heat appears between the parts and the driving parts. ** The heat generated during the operation of the machine can be released under normal circumstances, but if the heat is too large and exceeds the cooling capacity of the cooler, the oil temperature will rise, the force performance of the oil film will be reduced, and dry friction will occur. The sliding contact parts such as the cone sleeve and the shaft sleeve may be burned, and the cone sleeve and the main shaft will cause a "flying car". It was necessary to ensure the normal operation of the cooling system to avoid excessive accumulation of heat. - ** Fewer contact points between the cone sleeve and the main shaft **: If the cone sleeve of the limestone counter-impact breaker has fewer contact points with the main shaft, there may be a "flying car" when the stone crushing machine in the mine breaks the material. After feeding, it may not be pressed down, and the rotation speed of the main shaft cannot be adjusted. Make sure that the contact point between the cone sleeve and the main shaft meets the requirements. - ** Grease factor between the bushing and the main shaft **: When replacing or disposing of the bushing, even if scraping is carried out, if there is no sufficient operation running-in, the grease film between the bushing and the main shaft will not be able to withstand the force, and it is easy to cause "flying car". It should be ensured that sufficient running-in operation is carried out so that a good grease film is formed between the bushing and the main shaft. - ** The main shaft has been used for too long **: The main shaft of the machine has been used for too long, or the installation and coordination during the test and repair are improper. The space between the tile mouth and the upper edge of the main shaft is too large, and the eccentric shaft sleeve will collide with the main shaft. The moving cone will swing violently, and the machine will vibrate violently, resulting in a "flying car". Pay attention to how long the main shaft will be used, and ensure proper coordination during maintenance and installation. - ** There are substances mixed in the rocks **: When other non-broken rocks enter the rock, it will cause abnormal friction between the operating parts of the shaft and the bushing. Marks will appear on the surface of the bushing and the shaft. The shaft and the bushing cannot form a good oil film and will directly touch and rub. The oil temperature will rise and the speed will increase, causing a "flying car". To prevent non-broken objects from entering the breaker. 2. ** Other fault handling ** - ** Start-up equipment does not rotate **: Check whether the material in front of the plate type feeding machine falls into the crushing chamber and blocks the roller due to the vibration of the machine. At this time, the material in the crushing chamber must be cleaned up, and the problem can be solved by starting it again. - ** Bearing heat **: check whether the bearing is well moistened. Under normal circumstances, the grease should fill 50% of the bearing seat volume. In another case, the grease is deteriorated and viscous. The bearing needs to be cleaned and replaced with new grease. - ** Abnormal vibration of the equipment **: It may be due to the size of the feed material being too large; the wear resistant parts are worn out unevenly, and the counterattack hammer head needs to be replaced; the imbalance of the rotor-parts needs to be adjusted and balanced; check whether the anchor bolts of the equipment are fastened and properly reinforced. - ** Counterattack, break the belt, flip ** - Belt damaged: V-belt needs to be replaced. - Belt quality problem: Pay attention to the quality of the belt. - Inappropriate assembly of the belt wheel: the driving and driven belt wheels need to be adjusted on the same plane. - ** Bending or fracture of machine bearings **: The main reasons are the long-term overload operation of the main engine, improper heat treatment of the bearings, and excessive hardness of the broken objects. When handling, new bearings must be replaced, and in the future, pay attention to timely maintenance and repair. - ** Blocked car in the counterattack crushing station **: The counterattack crushing station suddenly stopped during operation due to blockage of the discharge port, belt slipping, low voltage, bearing damage, etc. Dealing with these problems one by one, such as removing the blockage of the discharge port, tightening the belt, increasing the voltage and ensuring the stability of the voltage, replacing the bearings, etc. - ** Equipment spring parts fractured **: The main reason for this failure was that the spring was not loosened when the discharge port was adjusted to a smaller size. Therefore, it was necessary to replace the broken spring when handling it. - ** Strange sound inside the crushing chamber **: Stop the machine immediately, check if there are any metal impurities or broken parts inside the crushing chamber, and clean up the crushing chamber. 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