How to avoid vibration in the housing of the parallel shaft FAF157-15 gear reducer

To avoid vibration of the parallel axis FAF157-15 gear reducer housing, the following measures can be taken:

Ensure installation accuracy

Stable foundation: The reducer should be installed on a sturdy and horizontal foundation, and the flatness and roughness of the installation surface should meet the requirements to prevent box vibration caused by unstable foundation.

Accurate alignment: Use professional tools such as laser alignment instruments to ensure that the axis alignment accuracy between the reducer and the drive motor or other related equipment is within ± 0.02mm/m, avoiding additional radial and axial forces caused by poor alignment and resulting in box vibration.

Bolt tightening: Strictly tighten the foundation bolts and connecting bolts according to the prescribed torque to prevent loosening of bolts and vibration of the box. You can use a hydraulic torque wrench to tighten it three times, increasing the torque by 30% each time to ensure even stress distribution.

Optimize gear transmission

Improve gear accuracy: Adopt high-precision machining equipment and processes to ensure the accuracy of gear profile, pitch, and orientation, and reduce vibration caused by gear machining errors.

Reasonably adjust the tooth flank clearance: According to the type and working conditions of the gear, control the tooth flank clearance within a reasonable range. For example, it is recommended to maintain a clearance of 0.08-0.16mm for hard toothed gears to avoid vibration intensification caused by excessive or insufficient clearance.

Regular inspection of gear wear: Regularly inspect the wear of gears, replace gears with severe wear or damage such as cracks and pitting in a timely manner, and prevent box vibration caused by gear failure.

Strengthen bearing maintenance

Choose suitable bearings: Based on the operating conditions and working environment of the gearbox, choose the appropriate model and specification of bearings. For example, C3 group clearance bearings can be selected for high-speed gearboxes.

Regular lubrication inspection: Regularly check the lubrication status of bearings, replenish or replace lubricating oil in a timely manner, and ensure that bearings receive good lubrication. At the same time, attention should be paid to the cleanliness and sealing of the bearings to prevent impurities and moisture from entering the bearings.

Timely replacement of bearings: Regularly check the operating condition of bearings. If any abnormal noise, heating, looseness or other phenomena are found in the bearings, they should be replaced in a timely manner to avoid vibration of the box caused by bearing failure.

Enhance the rigidity of the box body

Optimizing structural design: During the design phase, finite element analysis can be used to optimize the structure of the box, adding reinforcement bars and other measures to improve the rigidity and stability of the box, and reduce the transmission and amplification of vibration.

Check the condition of the box: Regularly inspect the box for cracks, deformations, and other issues. If any are found, they should be repaired or replaced in a timely manner. For installed equipment, strain gauges can be attached to vibration sensitive areas to monitor stress fluctuations at critical locations. When the peak stress exceeds 70% of the material's fatigue limit, immediate structural reinforcement is required.