Time : 2024-05-15 Browse : 16
As a hydraulic transmission device, the output torque of the hydraulic coupling is equal to the input torque without considering mechanical losses. Its structure is mainly composed of three parts: the housing, the pump wheel, and the turbine. During operation, if the coupling has abnormal sound and vibration, it may be caused by the following problems, and there are also corresponding treatment measures.
Possible Causes of the Problem
Internal structure damage or rust and fall off: The pump wheel of the hydraulic coupling is damaged, or the internal rust caused by long-term operation, and then the internal structure falls off, which will cause vibration and abnormal sound.
Center misalignment causes resonance: The motor of the transfer machine and crusher is not centered with the center of the hydraulic coupling. The high-frequency vibration generated in the working state will cause the coupling structure to resonate with it, which will not only cause vibration, but also make the equipment unstable and emit abnormal sounds.
Loose or falling fasteners: Since the hydraulic coupling is a long-term running device, its fasteners are prone to loosening or even falling off under high-speed operation, which will also cause abnormal sound and vibration.
Corresponding Treatment Measures
Check the internal structure: disassemble the coupling to check whether there are any abnormalities in the internal structure, such as damage to the pump wheel, falling parts, etc.
Improve installation accuracy: If the motor and reducer vibrate too much due to low installation accuracy, the technical requirements must be strictly followed during installation to ensure that the motor and the hydraulic coupling are aligned.
Reinforce fasteners and test: When repairing the coupling, use spring washers during assembly, or squeeze the bolt fixing glue into the threaded hole before tightening the bolts, and perform dynamic balancing tests at the same time. In addition, tighten the coupling's bolts to ensure good contact between the coupling and the foundation.
