How to choose a dynamic balancing machine correctly for rotors?
The diversification of rotating machinery has led to increasingly stringent requirements for vibration, noise, and mechanical lifespan. It is necessary to select dynamic balancing machines suitable for different rotating workpieces and perform corresponding unbalance correction.
Step 1: Choose a dynamic balancing machine. Firstly, based on the external characteristics of the rotating workpiece, choose a horizontal or vertical dynamic balancing machine. Of course, if there are special requirements, they can also be designed and manufactured according to actual needs. Horizontal balancing machine and vertical balancing machine. A horizontal balancing machine is a balancing machine in which the axis of rotation of the balanced rotor is horizontal on the balancing machine. Generally speaking, rotors with shafts or process shafts that can be assembled, such as motor rotors, machine tool spindles, drums, fans, steam turbines, turbocharger rotors, etc., are suitable for horizontal balancing machines. A vertical balancing machine is a balancing machine in which the rotating axis of the balanced rotor is in a lead state on the balancing machine. It generally refers to disc-shaped workpieces such as gears, various automotive flywheels, clutches, pressure plates and their assemblies, brake discs, brake hubs, motorcycle clutches, magnetic motor rotors, fans, blades, water pump impellers, pulleys, grinding wheels and other disc-shaped parts where the rotor itself does not have a shaft. Our company's vertical balancing machine can meet the balancing of various specifications of disc-shaped parts, while the vertical double-sided balancing machine series is suitable for dynamic balancing machines with drum shaped parts where the workpiece itself does not have a shaft, such as centrifuge drums.
Step 2: Choose between a ring belt drive balancing machine, a universal joint balancing machine, or a self driven balancing machine based on the transmission form of the rotor. The transmission methods for dragging the rotor include ring belt drive, coupling drive, and self drive. Ring belt dragging is the use of rubber or silk ring belts to drive the rotor by the motor pulley. Therefore, ring belt dragging requires a smooth cylindrical surface on the rotor surface. The advantage of ring belt dragging is that it does not affect the unbalance of the rotor and has high balance accuracy. Coupling drag is the use of universal joints to connect the main shaft and rotor of a balancing machine. The characteristic of coupling drag is that it is suitable for rotors with irregular appearances, can transmit large torque, and is suitable for dragging rotors with high wind resistance such as fans. The disadvantage of coupling drag is that the unbalance of the coupling itself will affect the rotor and introduce interference that affects the accuracy of balance. In addition, a large number of connecting discs need to be made to adapt to different types of rotors. Self drive is the use of the rotor's own power to rotate. Self drive is the drag method with the least impact on balance accuracy, and can achieve the highest balance accuracy, but only special rotors allowed by the structure can use this drag method.
Step 3: Based on the size of the workpiece, such as the type, outer diameter, length, weight, and rotational speed of the workpiece, select the size and model of the balancing machine, such as 5, 16, 50, 160, etc. The number represents the large quantity and mass of the workpiece. Generally, the option is set to 1/3 to 2/3. The dynamic balancing effect is better, and the maximum or minimum value can be achieved, but it may not necessarily meet the accuracy of the workpiece. The above are the selection techniques for balancing machines.
The diversification of rotating machinery has led to increasingly stringent requirements for vibration, noise, and mechanical lifespan. It is necessary to select dynamic balancing machines suitable for different rotating workpieces and perform corresponding unbalance correction.
Step 1: Choose a dynamic balancing machine. Firstly, based on the external characteristics of the rotating workpiece, choose a horizontal or vertical dynamic balancing machine. Of course, if there are special requirements, they can also be designed and manufactured according to actual needs. Horizontal balancing machine and vertical balancing machine. A horizontal balancing machine is a balancing machine in which the axis of rotation of the balanced rotor is horizontal on the balancing machine. Generally speaking, rotors with shafts or process shafts that can be assembled, such as motor rotors, machine tool spindles, drums, fans, steam turbines, turbocharger rotors, etc., are suitable for horizontal balancing machines. A vertical balancing machine is a balancing machine in which the rotating axis of the balanced rotor is in a lead state on the balancing machine. It generally refers to disc-shaped workpieces such as gears, various automotive flywheels, clutches, pressure plates and their assemblies, brake discs, brake hubs, motorcycle clutches, magnetic motor rotors, fans, blades, water pump impellers, pulleys, grinding wheels and other disc-shaped parts where the rotor itself does not have a shaft. Our company's vertical balancing machine can meet the balancing of various specifications of disc-shaped parts, while the vertical double-sided balancing machine series is suitable for dynamic balancing machines with drum shaped parts where the workpiece itself does not have a shaft, such as centrifuge drums.
Step 2: Choose between a ring belt drive balancing machine, a universal joint balancing machine, or a self driven balancing machine based on the transmission form of the rotor. The transmission methods for dragging the rotor include ring belt drive, coupling drive, and self drive. Ring belt dragging is the use of rubber or silk ring belts to drive the rotor by the motor pulley. Therefore, ring belt dragging requires a smooth cylindrical surface on the rotor surface. The advantage of ring belt dragging is that it does not affect the unbalance of the rotor and has high balance accuracy. Coupling drag is the use of universal joints to connect the main shaft and rotor of a balancing machine. The characteristic of coupling drag is that it is suitable for rotors with irregular appearances, can transmit large torque, and is suitable for dragging rotors with high wind resistance such as fans. The disadvantage of coupling drag is that the unbalance of the coupling itself will affect the rotor and introduce interference that affects the accuracy of balance. In addition, a large number of connecting discs need to be made to adapt to different types of rotors. Self drive is the use of the rotor's own power to rotate. Self drive is the drag method with the least impact on balance accuracy, and can achieve the highest balance accuracy, but only special rotors allowed by the structure can use this drag method.
Step 3: Based on the size of the workpiece, such as the type, outer diameter, length, weight, and rotational speed of the workpiece, select the size and model of the balancing machine, such as 5, 16, 50, 160, etc. The number represents the large quantity and mass of the workpiece. Generally, the option is set to 1/3 to 2/3. The dynamic balancing effect is better, and the maximum or minimum value can be achieved, but it may not necessarily meet the accuracy of the workpiece. The above are the selection techniques for balancing machines.
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