Prone failures and solutions of impact sand making machine

There are many types of sand making machines with different functions. Among them, there is an impact sand making machine, which is mainly used for the shaping of fine-grained materials in the production of sand and gravel aggregates and the production of high-quality machine-made sand. This article describes some of the failures that may occur during the operation of the vertical shaft impact break, which can be used as a reference when the equipment fails in the future.



Common five types of failures of impact sand making machines are as follows:
 
1. The current value is too high, too low, and unstable
 
a. The main reasons for the high current value are as follows: 1. Because the feed rate of the feed port is too large, it exceeds its load range; 2. The material is excessively accumulated in the crushing cavity or on the machine base; 3. The discharge port Material is blocked; 4. Electrical problems.
 
Solution: 1. Adjust the appropriate feeding amount; 2. Clean up the accumulated material on the machine base; 3. Check the impact broken discharge port and clean the blocked material; 4. Check the electrical equipment.
 
b. There are roughly three reasons for the too low current value: 1. The feed rate of the feed port is too small; 2. The belt is slipping; 3. Electrical problems.
 
Solution: 1. Adjust the feed rate of the impact broken inlet; 2. Tighten the belt; 3. Check the electrical equipment.
 
c. Reasons for unstable current value: For a double-motor crusher, the belt tension may be inappropriate; electrical problems.
 
Solution: check the stone lining of the rotor body; check the belt tension; check the control circuit.
 
2. High noise
 
Reasons for increased noise: bearing damage; belt slippage; lining material in the crushing cavity is washed away; friction between the feed cylinder and the rotor body.
 
Solution: check the bearing; check the belt tension; regenerate the stone lining; check the clearance between the three-jaw hopper and the rotor body.
 
3. Large vibration
 
Possible causes: increased vibration and equipment installation is not level; the horizontal error of the lower flange surface continues to be greater than 3mm~5mm; wear parts or rotor wear is uneven; the rotor is not balanced due to the uneven lining of the rotor; the vibration damping block fails; The conical expansion sleeve of the rotor or pulley becomes loose; the bearing is damaged.
 
Solution: check the rotor body, damping block, pulley and bearing; check the level of the middle bottom plate.
 
4. Wear of rotor and top wear plate
 
The reason for the wear of the top wear plate: direct impact on the rotor.
 
Solution: Adjust the center inlet of the feeding hopper to make the feed material in the state of full and unloading, and adjust the size of the center hole and the height of the overflow door.
 
Reasons for rotor wear: The material-throwing head is seriously worn and the replacement is not timely.
 
Solution: Replace in time within the wear limit.
 
5. Difficult to change the anvil or uneven wear
 
The reason for the difficulty of changing: the material enters between the anvil and the support.
 
Solution: Add butter between the anvil and the support.
 
Reasons for uneven wear: uneven feeding and serious wear.
 
Solution: Check the material flow, then distribute the material evenly throughout the width of the feed inlet, and replace the anvil.
 
      The above several reasons may cause the impact sand making machine to malfunction. Only after correct operation and maintenance of the equipment, and timely detection and treatment of potential failures, can the performance of the equipment be better utilized. If you need to consult with other equipment, you can call our service hotline or leave a message on the website. Welcome to communicate with us on technical issues in time.
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