The widely used balancing machine measurement methods in the market mainly include belt drive, self drive, universal joint drive, etc. So what are the advantages and disadvantages of different driving methods for balancing machines? Huake Zhichuang's dynamic balancing machine technician will explain them in detail.

Ring belt balancing machine

Ring belt balancing machine: Ring belt drive is a high-precision driving method for balancing machines. It measures the rotation of the rotor through the rubber or silk ring belt of the balancing machine, and is driven by the motor pulley. Therefore, the ring belt balancing machine requires a smooth cylindrical surface for measuring the rotor surface. If the surface is not smooth or has irregular shapes, the belt transmission method cannot be successful.

The advantages of belt drive are: it does not affect the measurement of rotor unbalance, high dynamic balancing accuracy, and simple operation.

The disadvantage of belt drive is that the measuring rotor must have a smooth cylindrical surface.

Self driven balancing machine

Self driving balancing machine: Self driving technology utilizes the power of the rotor itself to rotate. Self driving is the driving method that has the least impact on balancing accuracy, and can achieve the highest balancing accuracy. However, only special rotors with structural permits can use this driving method.

The advantages of self driving include simulating actual operating conditions for measurement, high balance accuracy, and eliminating secondary balance errors caused by component assembly.

The disadvantage of self driving: Only special workpieces allowed by the structure can use this driving method.

Universal joint balancing machine

Universal joint balancing machine: The principle of universal joint drive is that the balancing machine is connected to the rotor through the main shaft, which can transmit a large torque. Suitable for driving rotors with high wind resistance such as fan impellers, but the unbalance of the universal joint itself can affect the measurement of the rotor and interfere with the balance accuracy (therefore, the universal joint needs to be balanced and calibrated before use). In addition, a large number of connecting discs need to be made to adapt to different types of rotors.

Advantages of universal joint drive: Suitable for rotors with irregular appearances and capable of transmitting large torque.

Disadvantages of universal joint drive: The unbalance of the universal joint itself can affect the balance of the rotor, interfere with the accuracy of the balance, and require a large number of connecting plates to adapt to different types of rotors, resulting in low measurement accuracy.

A balancing machine is an essential equipment for reducing vibration, improving performance, and enhancing quality. Each unbalanced rotor exerts pressure on its supporting structure and the rotor itself during its rotation, leading to vibration. Dynamic balancing of the rotor is essential, and a balancing machine is used to perform dynamic balancing tests on the rotor while it is rotating; The main performance of a dynamic balancing machine is a combination of two indicators: the minimum achievable residual unbalance and the reduction rate of the dynamic balancing machine.