The measurement methods of balancing machines widely used in the market mainly include ring-belt drive, self-drive, universal joint drive, etc. So what are the advantages and disadvantages of the driving methods of different balancing machines?
Ring belt balancing machine: ring belt drive is a driving method with high precision of the balancing machine. It passes through the rubber endless belt or silk woven endless belt of the balancing machine and is driven by the motor pulley to measure the rotation of the rotor. Therefore, the ring belt balancing machine requires the measurement of the rotor The surface must have a smooth cylindrical surface. If the surface is not smooth or has an irregular shape, the loop belt drive method will not be successful.
The advantages of the ring belt drive: it does not affect the measurement of the unbalance of the rotor, the dynamic balance has high precision, and the operation is simple.
Disadvantage of belt drives: The measuring rotor must have a smooth cylindrical surface.
Self-driven balancing machine: Self-driven technology uses the power of the rotor itself to rotate. Self-driven is the driving method that has the least impact on the balance accuracy, and the balance accuracy can reach the highest. However, only special rotors whose structure allows can use this driving method.
Advantages of self-driving: measurement by simulating the actual operating state, high balance accuracy, and elimination of secondary balance errors caused by component assembly.
Disadvantages of self-driving: Only special workpieces whose structure allows can use this driving method.
Universal joint balancing machine: The principle of universal joint drive is that the balancing machine is connected with the rotor through the main shaft, which can transmit large torque. It is suitable for driving rotors with large wind resistance such as fan impellers, but the unbalance of the universal joint itself will affect the measurement rotor and interfere with the balance accuracy (so the balance of the universal joint should be corrected before use). A large number of connecting discs to suit different types of rotors.
The driving advantages of the universal joint drive: it is suitable for rotors with irregular appearance, and the transmission torque is large.
Disadvantages of the universal joint drive: the unbalance of the universal joint itself will affect the balance of the rotor and interfere with the accuracy of the balance. In addition, a large number of connection plates must be made to adapt to different types of rotors, and the measurement accuracy is low.
A balancing machine is an essential device to reduce vibration, improve performance and improve quality. Each unbalanced rotor generates a stress on its supporting structure and the rotor itself during its rotation, and causes vibration. The dynamic balance of the rotor is very necessary. The Shenman balancing machine is to test the dynamic balance of the rotor in the rotating state; the main performance of the dynamic balancing machine is to use the minimum reachable residual unbalance.
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