Common XWE74-121-7.5KW cycloid reducer faults and treatment methods

Noise abnormality :

• Cause : The bearing is worn, causing unstable operation to produce noise; poor lubrication, causing friction between parts to increase and noise; improper assembly, the gap between parts does not meet the standards, and they collide with each other during operation.

• Treatment method : Check the bearing and its lubricating status, and replace the bearings with severe wear in a timely manner; adjust the assembly relationship to ensure that the gap between each component meets the standard requirements.

Too high temperature :

• Cause : Inadequate cooling, the heat dissipation system fails, and the heat dissipation system cannot be effectively dissipated; the lubricating oil fails, and the lubricating performance decreases, resulting in increased frictional heat generation; the mechanical load is too large, exceeding the rated load of the reducer.

• Treatment method : Check whether the cooling system is working normally, add an appropriate amount of coolant if necessary; change the lubricant regularly to ensure its lubricating effect; for excessive load, appropriately reduce the load to make it operate within the rated load range.

The output shaft speed is unstable :

• Cause : Uneven load, resulting in uncertain torque on the output bearing; unstable input speed, affecting the speed stability of the output shaft; internal components are worn, such as cycloid wheels, needle teeth, etc., resulting in a decrease in transmission accuracy.

• Treatment method : Check the uniformity of the load and try to make the load evenly distributed; ensure the stability of the input speed, check the operation of motors and other driving equipment; if internal parts are found to be seriously worn, replace or repair them in time.

Oil leakage :

• Cause : The seal is aging or damaged, losing its sealing performance; the oil level is too high, causing the oil to be squeezed out from the seal; the ventilation hole is blocked, causing the internal pressure to rise, forcing the oil to seep out.

• Treatment method : Check the condition of the seal. If it is found to be aging, deformed or damaged, replace it in time; check the oil level and control the oil level within the normal range; clean the ventilation holes to ensure it is unobstructed to balance the internal pressure.

Impact vibration :

• Cause : Poor assembly, inadequate installation of components, vibration occurs during operation; the support structure is instable and cannot provide stable support for the reducer; internal components are damaged, such as cycloid wheel breakage, bearing breakage, etc., resulting in operation imbalance.

• Treatment method : Stop the machine immediately to check assembly problems, reassemble and ensure that all components are installed in place; check the stability of the support structure, strengthen or replace loose or damaged support; check the status of internal parts, and replace damaged parts in a timely manner.