Swing crusher, as an efficient crushing equipment, is widely used in various industries such as chemical, pharmaceutical, and food. Its swinging motion can effectively improve the efficiency and uniformity of material crushing, but various malfunctions are inevitable during long-term operation. Starting from common fault phenomena, systematically explain the troubleshooting methods and solutions:
1、 Significant decrease in yield
When it is found that the discharge volume has significantly decreased per unit time, the following steps need to be checked: firstly, whether the feed particle size exceeds the allowable range of the equipment. If the raw material block size is too large, it may cause blockage; The second is the degree of blade wear, and blunting the blade edge will significantly reduce the shear effect; The third is the state of the sieve mesh, as clogged or damaged sieve holes directly affect the classification efficiency. At this time, the machine should be stopped to clean up the accumulation at the feed inlet, replace the severely worn blade components, and adjust the mesh size to the appropriate mesh size. For materials with strong viscosity, it is possible to try adding auxiliary blowing devices to prevent adhesion.
2、 Abnormal vibration or noise during operation
Strong body vibrations often originate from rotor imbalance. Immediate shutdown is required to check the wear of the hammer heads. If there are individual hammer heads that are excessively worn, resulting in uneven quality distribution, they should be replaced with new ones in a timely manner. Bearing damage can also cause severe vibration, and the sound of bearing operation can be judged by a stethoscope to determine if it is normal. If necessary, disassemble and inspect the clearance and raceway condition. In addition, loose anchor bolts can cause displacement and vibration of the entire machine, and it is necessary to re level the foundation and tighten all fixing bolts. The impact noise generated by poor gear meshing requires adjusting the gear clearance to the specified value.
3、 Motor overheating or even tripping
Overload operation of the electric motor is the main cause. Possible reasons for this phenomenon include: feeding speed exceeding the rated capacity, entry of unbreakable foreign objects into the crushing chamber, and increased transmission resistance due to excessive belt tension. The first treatment method is to reduce the feeding frequency and observe the changes in current. Secondly, the residue in the crushing chamber, especially the metal impurities, must be cleaned thoroughly. Check the tension of the V-belt, and press it with your fingers to ensure an appropriate amount of elastic deformation. If the insulation of the motor winding itself is aging, it is necessary to contact an electrician for drying treatment or rewinding the coil.
4、 The particle size of the finished product does not meet the requirements
The key factors affecting particle size are the selection of screen mesh and the matching of rotor speed. If there are too many coarse particles, it indicates that the sieve aperture is too large or the material is damaged and leaked. A finer sieve should be replaced and the sealing should be confirmed to be good. On the contrary, if the phenomenon of excessive powder occurs, it may be due to the rotor speed being too high, causing excessive grinding of the material. The effect can be tested by adjusting the speed parameters through a frequency converter. At the same time, pay attention to the uniformity of feeding, as sudden increases or decreases in feeding amount can lead to classification abnormalities.
5、 Key points of daily maintenance and upkeep
Establishing a preventive maintenance system is crucial. Clean up dust accumulation before and after each shift, check blade tightening torque and bearing lubrication condition weekly, and measure motor insulation resistance monthly. Suggest keeping a list of vulnerable parts (such as blades, screens, belts, etc.) and replacing them in advance if wear reaches a certain level. Using an automatic oiler for the lubrication system can avoid bearing burnout caused by oil shortage.
Through the above systematic troubleshooting methods and standardized maintenance measures, it is possible to quickly locate the root causes of various faults in the swing crusher, effectively ensuring the stable operation and production efficiency of the equipment. In practical operation, safety regulations should be strictly followed, and electrical parts must be powered off for operation. Complex faults are recommended to be handled by professional technicians.