Upgrading And Reforming Measures of Impact Crusher

Impact crusher is one of the commonly used equipment in mines. The purpose of using impact crusher is to crush rocks with hardness up to 78. Some customers think that anything can be crushed under the impact of impact crusher in the process of using it. First of all, this view is wrong. In the process of feeding by vibration feeder, iron or harder materials will inevitably be crushed. In the chamber, this may cause the vibration instability of the impact crusher. The treatment method is to shut down and clean up the interior of the Shanghai impact crusher. If the vibration instability of the impact crusher is ignored for a long time, brute force impact will cause the lining fastener to relax or other parts to break. It may also cause unstable vibration of impact crusher, such as: the rotor can not achieve balanced operation when rotating; the screw of fixed impact crusher or the screw of bearing seat loosen and so on. When problems arise, we can first check according to some routine inspection, reinstall the plate hammer parts, make the rotor balanced, tighten the foot screw and bearing seat screw.

Problems in upgrade of impact crusher

  • 1. Because of the high output of raw coal and the heavy task of crushing, the motor driven by Shanghai impact crusher is 15KW, and the triangular belt used is A. The processing capacity of Shanghai impact crusher can not keep up with the large crushing of raw coal with a diameter of more than 80mm after crushing by crusher, which results in the frequent burning of angle bands in Shanghai impact crusher, and even leads to the overhead of contactors in distribution room, Shanghai impact crusher and upper crusher. For various reasons, there is no lock in the process. A large amount of lump coal is accumulated in the feeding chute of Shanghai impact crusher. It is found that the accident must be handled manually, which wastes manpower and material resources and delays production.
  • 2. The oil injection hole of Shanghai impact crusher is on the side of the tile seat, and the inner bearing of the tile seat is 80MM away from the inner wall of the oil injection hole of the tile seat. Butter is injected into a lot of space between the inner wall of the tile seat and the bearing, which makes the bearing not lubricated and damages the bearing for a long time.
  • 3. The pin shaft of Shanghai impact crusher is a vertical pin gear shaft and triangular belt pulley. If the pin shaft is not installed correctly, the gap between the cutting shaft and the tooth hob and triangular belt pulley is not aligned, and the pin shaft is stuck in the tooth hob, which is difficult to repair. If the pin shaft is installed correctly, the gap between the cutting shaft and the tooth hob and triangular belt pulley is aligned, and the average number of pins is more than 10 times a day.

Revamping of impact Crusher

  • 1. For the revamping of motor, triangle pulley and triangle belt, the motor of impact crusher is increased from 15KW to 17KW, the width of triangle belt slot of triangle pulley is increased, and the width of triangle belt is broadened from original A-type angle belt to B-type angle belt.
  • 2. Modification of the position of the oil injection hole. The position of the oil injection hole of Shanghai impact crusher is changed from the side position of the tile seat to the upper position of the tile seat. The oil injection hole of the Shanghai impact crusher passes through the inside of the bearing.
  • 3. Modification of Pin Shaft Position The Pin Shaft of Shanghai impact Crusher was changed from vertical pin triangle pulley and gear hob to horizontal pin triangle pulley. In this way, the pin can not cause damage to the gear hob, only the copper sleeve between the triangular pulley and the gear hob must be replaced regularly.

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