Functions and features of balancing machine

An unbalanced rotor generates a pressure on its support structure and the rotor itself during its rotation and causes vibration. Therefore, the dynamic balance of the rotor is very necessary. The balance machine is to perform dynamic balance verification of the rotor in the rotating state.

The role of throbbing is:

1.Improve the quality of the rotor and its products; reduce noise;

2. Reduce vibration.

3. Improve the service life of supporting components (bearings).

4, reduce the user's discomfort.

5. Reduce the power consumption of the product.

transfer method

The driving methods of the balancing machine's drag rotor include loop drag, coupling drag and self-drive. The belt dragging uses a rubber endless belt or a silk endless belt, and the motor pulls the rotor. Therefore, the belt dragging requires a smooth cylindrical surface on the surface of the rotor. The advantage of the belt dragging is that it does not affect the unbalance of the rotor. , High balance accuracy. Coupling dragging uses a universal joint to connect the balancer main shaft and the rotor. The characteristics of coupling drag are suitable for the rotor with irregular appearance, which can transmit larger torque, suitable for dragging rotors with large wind resistance such as fans. The disadvantage of coupling drag is that the imbalance of the coupling itself will affect The rotor has an impact (so the coupling must be balanced before use), and interference will be introduced to affect the accuracy of the balance. In addition, a large number of connecting disks must be made to adapt to different types of rotors. Self-driving is using the power of the rotor to rotate. Self-driving is the dragging method that has the least impact on the balance accuracy. The balance accuracy can be the highest, but only the special rotors allowed by the structure can use this dragging method.

working principle

The balance machine is a machine that measures the magnitude and position of the imbalance of a rotating object (rotor). Because the rotor rotates around its axis, the price of the tire pick-up machine generates centrifugal force due to the uneven mass distribution relative to the axis. This kind of unbalanced centrifugal force will cause vibration on the rotor bearing, generate noise and accelerate bearing wear, which will seriously affect the performance and life of the product. Therefore, the balance machine should be used for testing.

During the manufacturing process, rotating parts such as motor rotors, machine tool spindles, fan impellers, steam turbine rotors, automotive parts, and air conditioning blades need to be balanced to run smoothly and normally. Correcting the imbalance of the rotor according to the data measured by the balancing machine can improve the mass distribution of the rotor relative to the axis, and reduce the vibration generated during the rotation of the rotor or the vibration force acting on the bearings to within the allowable range. Therefore, the balancing machine is an indispensable device for reducing vibration, improving performance and improving quality. Generally, the balance of the rotor includes two steps of measuring and correcting the unbalance amount. The balance machine is mainly used for measuring the unbalance amount.

The main performance of the balancing machine is expressed by the two comprehensive indicators of the minimum achievable residual unbalance amount and the reduction rate of the unbalance amount. The former is the minimum value of the remaining imbalance that the rotor can achieve with the balance function, it is an index to measure the highest balance capacity of the balance machine; the latter is the ratio of the reduced imbalance amount to the initial imbalance amount after a correction, and it is a measure of the balance efficiency The indicator is generally expressed as a percentage.

Balancing machine price-Yingkou Jinhua Machinery Manufacturing Co., Ltd.