When the rotor rotates around its axis, centrifugal force is caused by uneven distribution of mass relative to the axis; This type of unbalanced centrifugal force acting on rotor bearings can cause vibration, noise, and accelerate bearing wear, seriously endangering product performance and service life. Therefore, it is necessary to use a dynamic balancing machine to perform dynamic balancing correction on the rotor.
A dynamic balancing machine is a detection instrument that detects the magnitude and location of the imbalance of rotating workpieces (rotors). So, what methods can be used to correct mechanical balance using a dynamic balancing machine? Huake Zhichuang Dynamic Balancing Machine technician will share the following three methods with you.
Dynamic balance correction
1. Removing duplicates: In practical applications, it often requires several tests and corrections to ensure that the residual imbalance meets the standard. Starting from the process standard of drilling for weight removal, it is usually not the method of drilling one hole, but to select several parts from the allocated multiple hole positions to drill for weight removal, and achieve the effect of balance correction based on vector synthesis.
2. Counterweight component: In order to facilitate the installation of counterweights, it is necessary to drill several evenly distributed screw holes on the balanced rotor first. According to the number of screw holes drilled on the balanced rotor, there are usually three point counterweight method and four point counterweight method. Generally speaking, the location is randomly selected, but our correction work is carried out after the dynamic balance detection work, so it is usually selected as the location of the phase detector sensor during dynamic balance detection. The counterweight component method is commonly used for single-sided and low-speed dynamic balancing. This method has a higher number of starting and stopping times, but does not require phase detection sensors during detection, resulting in low detection system costs.
3. Additional dynamic balance plate: For rotors that require frequent unbalance correction, such as grinding wheel rotors, it is recommended to install a balance plate on the rotor before balancing. A trapezoidal groove is machined on the balance plate to accommodate additional balance blocks.
The size of the balance plate should be designed for different rotor structures. For different rotors, the structure of the balance plate is similar. When using the balance plate method to balance the rotor, it is only necessary to understand the starting position of the balance block on the balance plate. After picking up the amount of imbalance, calculate the position of the balance block when the rotor is balanced, and move the balance block to the corresponding position to accurately balance the rotor. This method is easy to operate, has ideal results, and is suitable for widespread promotion.
A dynamic balancing machine is a detection instrument that detects the magnitude and location of the imbalance of rotating workpieces (rotors). So, what methods can be used to correct mechanical balance using a dynamic balancing machine? Huake Zhichuang Dynamic Balancing Machine technician will share the following three methods with you.
Dynamic balance correction
1. Removing duplicates: In practical applications, it often requires several tests and corrections to ensure that the residual imbalance meets the standard. Starting from the process standard of drilling for weight removal, it is usually not the method of drilling one hole, but to select several parts from the allocated multiple hole positions to drill for weight removal, and achieve the effect of balance correction based on vector synthesis.
2. Counterweight component: In order to facilitate the installation of counterweights, it is necessary to drill several evenly distributed screw holes on the balanced rotor first. According to the number of screw holes drilled on the balanced rotor, there are usually three point counterweight method and four point counterweight method. Generally speaking, the location is randomly selected, but our correction work is carried out after the dynamic balance detection work, so it is usually selected as the location of the phase detector sensor during dynamic balance detection. The counterweight component method is commonly used for single-sided and low-speed dynamic balancing. This method has a higher number of starting and stopping times, but does not require phase detection sensors during detection, resulting in low detection system costs.
3. Additional dynamic balance plate: For rotors that require frequent unbalance correction, such as grinding wheel rotors, it is recommended to install a balance plate on the rotor before balancing. A trapezoidal groove is machined on the balance plate to accommodate additional balance blocks.
The size of the balance plate should be designed for different rotor structures. For different rotors, the structure of the balance plate is similar. When using the balance plate method to balance the rotor, it is only necessary to understand the starting position of the balance block on the balance plate. After picking up the amount of imbalance, calculate the position of the balance block when the rotor is balanced, and move the balance block to the corresponding position to accurately balance the rotor. This method is easy to operate, has ideal results, and is suitable for widespread promotion.
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