Forging forming -- English · 2023年7月13日 0

How to deal with dynamic balance of gear?

Dynamic balance treatment of gear is an important process to reduce vibration and noise during gear operation. The following are the steps for the dynamic balancing treatment of the gear: Measurement: First, the balanced gear needs to be measured, including the measurement of its mass, geometry and rotation speed and other parameters to determine the balance treatment needs. Determine the balance mass: According to the measurement results, calculate the balance mass required by the gear. The balance mass can be divided into static balance mass and dynamic balance mass, where the static balance mass is used to solve the static unbalance problem, while the dynamic balance mass takes into account the centrifugal force and inertia force generated by the gear when rotating at high speed. Balance position determination: According to the geometry of the gear and the running state, select the appropriate balance position, that is, the position of the balance block installed on the gear. The balance block is usually installed at a distance from the axis of rotation to reduce the unbalanced torque. Install the balance block: according to the balance position, install the balance block on the gear. The balance block can be used to increase the mass, such as adding metal blocks, or using specially designed construction to change the position of the center of mass of the gear. Balance correction: After the installation of the balance block, the initial balance correction is carried out. It can be corrected by test weight method, dynamic balancing machine and other equipment, and adjust the position and quality of the balance block according to the measurement results, so that the imbalance of the gear is minimized. Test: After the balance correction is completed, the gear is tested. Devices such as vibration sensors can be applied to detect the vibration of the gear during operation to ensure that the balance requirements are met. Final balancing treatment: If the test results do not meet the requirements, the gear needs to be calibrated again until the balance is achieved. It should be noted that because the gear usually works closely with other mechanical parts, it is also necessary to consider the balance requirements of its matched parts when dynamic balancing is processed to achieve the balance effect of the overall system.