How to Adjust the Eccentric Block of a Vibration Motor?
The vibration motor is equipped with a set of adjustable eccentric blocks at both ends of the rotor shaft, and the centrifugal force generated by the high-speed rotation of the shaft and the eccentric block is used to obtain the exciting force. The vibration motor has a wide frequency range. Only by properly matching the excitation force and power can the mechanical noise be reduced.
The vibration motor is the core part of the vibration screening equipment. The excitation source combines the power source and the vibration source. It is a set of adjustable eccentric blocks installed at both ends of the rotor shaft. It will use the centrifugal force generated by the high-speed rotation of the shaft and the eccentric block to obtain the exciting force. In addition, the vibration motor has a high utilization rate of excitation force, low energy consumption, low noise and long life. The excitation force of the vibration motor can be adjusted steplessly and is easy to use.
When we use vibration screening equipment, sometimes in changing materials or finding debugging problems, we will find that there is a problem with the adjustment of the eccentric block of the vibration motor, which leads to the inappropriateness of material screening and reduces the screening efficiency. How should the vibration motor be adjusted? What about the eccentric block?
1. Change the phase angle of the weight above and below the vibration motor, which can change the trajectory and residence time of the material on the screen, so that the screen machine can adapt to the required separation state of various materials. Various changes such as separation efficiency and network speed should be adjusted to a better state.
2. The upper weight cannot be adjusted. At this time, it is firstly required to open the adjustment hole at the bottom of the device base, and then loosen the lower weight fixing bolt. According to the trajectory of the screened material, it is required to adjust the phase angle of the upper and lower weights in the direction opposite to the discharge port. Then, please tighten the fixing bolts, put a small amount of material on the surface of the screen, let the screen run, and check the movement track of the material on the surface of the screen. If the processing parameters achieve good results, please stop fixing the bolts and stop adjusting (remember to tighten the fixing bolt).
3. Adjust additional weights: There are additional weights on the sides of the upper and lower weights, and their role is to increase or decrease the exciting force of the screen. You can increase or decrease other weights based on factors such as the number of layers in the device, the weight of the material, and so on. Non-professionals should not add or subtract extra weight at will.