What are the solutions for abnormal vibration of the ZJY75-22.4 shaft-mounted reducer?

The solution to the abnormal vibration of ZJY75-22.4 shaft mounted reducer can be approached from the following aspects:

Check the installation foundation and connections

Tighten the foundation bolts: Check if the bolts on the reducer base are loose. If they are, use the corresponding tools to tighten them to the specified torque to ensure that the reducer is installed firmly.

Adjust installation position: Ensure that the deceleration motor is concentric with the connected equipment (such as the drum), and the eccentricity should be less than or equal to 0.5mm. Adjustments can be made by adjusting gaskets or other methods.

Check the coupling: Remove the coupling and check if it is installed correctly and if the pins are worn out too much. If the installation is not correct, it needs to be reassembled according to the requirements; If the pillar pin is worn, it should be replaced in a timely manner.

Troubleshooting mechanical component issues

Check gears: Check for gear surface wear, bonding, pitting, and misalignment. For gears with severe wear, they should be replaced in a timely manner; If there is a problem of poor contact between the gear meshing surfaces, it can be solved by adjusting the bearing clearance, improving gear lubrication, and other methods.

Check bearings: Check whether the bearings are worn or have excessive clearance. If there are any problems, replace the bearings in a timely manner and ensure correct installation. If necessary, adjust the bearing clearance by adding or removing shims from the cover parts at both ends.

Check the balance of rotating components: For rotating components such as rotors, check whether they are balanced. If the residual unbalance exceeds the ISO1940 G2.5 level, on-site dynamic balancing methods such as the influence coefficient method can be used to adjust the balance by accurately measuring the phase angle and conducting at least two trial weight calculations.

Optimize lubrication system

Choose suitable lubricating oil: According to the working requirements of the reducer, choose lubricating oil with appropriate viscosity and performance, such as ISO VG220-460 grade oil, and strictly control the water content (≤ 200ppm).

Check oil quality and level: Regularly check the quality of lubricating oil to see if there is any deterioration, contamination, etc., while ensuring that the oil level is within the normal range. If the oil level is too low, lubricating oil should be replenished in a timely manner.

other measures

Installing shock absorbers: Install shock absorbers at the bottom of the gearbox, such as rubber pads, shock absorbers, etc., to reduce vibration and impact.

Check the stiffness of the shell: If micro cracks appear in the cast shell under long-term alternating stress, resulting in a decrease in stiffness, strain gauges can be attached to the vibration sensitive area to monitor stress fluctuations at key positions. When the peak stress exceeds 70% of the material fatigue limit, structural reinforcement should be carried out immediately, such as adding reinforcing bars.