wood crusher plays an important role in the wood processing process, however, some failures will inevitably occur after a long time of use. Timely and accurate troubleshooting of these faults can guarantee the smooth progress of production. The following is an introduction to the common failures of wood crusher and solutions.
First, the crushing efficiency is low
(A) fault performance
Wood crusher in normal operation, the amount of wood crushed per unit of time is significantly reduced, unable to reach the rated capacity of the equipment.
(B) cause analysis
Knife wear: the knife is the core component of the wood crusher, after a long time of use, the knife edge will gradually wear blunt, resulting in a decline in cutting capacity, thus affecting the crushing efficiency.
Uneven feeding: If in the feeding process, the size and shape of the wood varies greatly, or the feeding speed is not stable, it will make the internal workload of the crusher is not balanced, reducing the crushing efficiency.
Screen clogging: the screen is used to screen the crushed material, if the screen mesh is clogged with wood chips or other impurities, it will hinder the discharge of materials, so that the crusher internal material accumulation, affecting the subsequent crushing work.
(C) the solution
Replacement of knives: regularly check the wear and tear of knives, when the knives are badly worn, new knives should be replaced in a timely manner. Select quality and reliable, wear-resistant knives to ensure that the crushing effect and efficiency.
Adjust the feeding method: before feeding, pre-treat the wood, try to make the size and shape of the wood relatively uniform. At the same time, the installation of automatic feeding device to ensure stable feeding speed, so that the crusher workload to maintain a balanced.
Clean up the screen: regularly clean up the screen, you can use brushes, compressed air and other tools to remove impurities on the screen. If the screen is damaged, it should be replaced in a timely manner with a new screen to ensure that the material can be discharged smoothly.
Second, the equipment abnormal vibration
(A) fault performance
Wood crusher in the operation process, the body of the machine appeared violent vibration, may be accompanied by abnormal noise, not only affecting the stability of the equipment, there are also potential safety hazards.
(B) cause analysis
Loose parts: some key components of the crusher, such as motor base, bearing housing, knife disk, etc., in a long time under the vibration and impact, the connecting bolts may be loose, resulting in changes in the relative position of the components, thereby triggering equipment vibration.
Rotor imbalance: the rotor is a high-speed rotating parts of the wood crusher, if the rotor on the knife installation is not balanced, or the rotor itself there is a quality eccentricity, the centrifugal force will be generated in high-speed rotation, resulting in equipment vibration.
Bearing damage: the bearing is an important part to support the rotation of the rotor, if the bearing is poorly lubricated, badly worn or contaminated by impurities, it will make the bearing rotating flexibility decline, resulting in abnormal vibration and noise.
(C) Solutions
Tighten the parts: check the connection bolts of each part of the equipment regularly, and tighten them in time if they are found to be loose. In the process of fastening, the operation should be carried out in accordance with the specified torque to ensure a firm connection.
Adjust the rotor balance: carry out dynamic balance test on the rotor, find out the position of mass eccentricity, and make the rotor reach the balanced state by increasing or decreasing the counterweight block in the corresponding position. Meanwhile, when installing the tool, make sure the tool is installed evenly to avoid the phenomenon of partial weight.
Replacement of bearings: Regularly check the working condition of the bearings and replenish the grease in time. If the bearings are found to be damaged, select the model-matched high-quality bearings for replacement. During the replacement process, pay attention to the installation method and installation precision to avoid damage to the bearings and other components.
Third, motor overheating
(A) fault performance
Wood crusher work for a period of time, the motor surface temperature is too high, and may even smoke, odor and other phenomena, which may lead to motor burns, affecting the normal operation of the equipment.
(B) cause analysis
Overload: when the crusher feed too much or wood hardness, the motor needs to output more torque to drive the equipment to run, resulting in increased motor current, long overload operation will make the motor overheating.
Poor heat dissipation: the motor will produce heat in the process of operation, the need for heat dissipation through the heat dissipation device will be emitted. If the motor cooling fan is damaged, the vents are blocked or the surrounding environment is too hot, it will affect the cooling effect of the motor, resulting in an increase in motor temperature.
Motor Failure: Failures such as short-circuiting, disconnection or degradation of insulation performance of the winding inside the motor will also lead to abnormal motor heating.
(C) the solution
Control the amount of feed: according to the rated power and crushing capacity of the wood crusher, reasonable control of the amount of feed and wood hardness. Avoid feeding too much material at once or crushing too hard wood to prevent motor overload.
Improve the cooling conditions: regularly check whether the motor cooling fan is operating normally, clean up the debris in the vent to ensure good ventilation. When working in a high-temperature environment, you can take measures such as increasing the cooling fan and installing cooling devices to reduce the temperature of the motor.
Inspection and repair of the motor: If you suspect that the motor is faulty, you should stop the machine in time and use professional tools to test the motor. If you find the winding short circuit, disconnection and other problems, you should find professional maintenance personnel to repair or replace the motor.
Through the analysis and elimination of common failures of wood crusher, I hope to help users to solve the problems in the operation of the equipment in a timely manner, to ensure the stable operation of the wood crusher, improve wood processing efficiency. In daily use, the user should also strengthen the maintenance of the equipment, regularly check the working status of the components, timely detection and resolution of potential problems, to extend the service life of the equipment.
