Time : 2024-06-04 Browse : 20
Fluid couplings, as important power transmission devices, are widely used in various industrial fields. Various failures may occur during their long-term operation. The following are common problems of fluid couplings and professional solutions:
I. Bearing System Failures in Hydrodynamic Couplings
Main causes of bearing damage in hydrodynamic couplings
Insufficient lubrication due to deterioration of lubricating oil in hydrodynamic couplings
Rust caused by leakage in the cooling system of hydrodynamic couplings
Vibration due to insufficient installation accuracy of hydrodynamic couplings
II. Speed Regulation System Failures in Turbo Couplings
Problems with the dipper tube system of turbo couplings
Excessive wear clearance between the dipper tube and sleeve of turbo couplings
Unstable positioning caused by wear of guide keys in turbo couplings
Impaired speed regulation function due to actuator damage in turbo couplings
III. Oil Supply System Failures in Fluid Drive Couplings
Problems with the oil pump system of fluid drive couplings:
Pressure drop caused by wear of the oil pump rotor in fluid drive couplings
Stoppage due to damage to the drive gear of fluid drive couplings
Insufficient oil supply caused by low oil level in fluid drive couplings
IV. Impeller Damage in Hydraulic Couplings
Common impeller failures in hydraulic couplings:
Impeller fragmentation due to foreign objects entering hydraulic couplings
Blade damage caused by casting defects in hydraulic couplings
Sudden force changes due to excessively fast speed regulation of hydraulic couplings
V. Sealing System Failures in Hydrodynamic Power Transmission Devices
Main causes of oil leakage in hydrodynamic power transmission devices:
Aging and failure of oil seals in hydrodynamic power transmission devices
Abnormal mechanical seal clearance in hydrodynamic power transmission devices
Accelerated wear due to improper installation of hydrodynamic power transmission devices
VI. Speed Control Failures in Fluid Couplings
Causes of abnormal speed in fluid couplings:
Incorrect direction of the dipper head in fluid couplings
Failure of the control system in fluid couplings
Impeller adhesion in fluid couplings
VII. Shaft Failures in Turbo Couplings
Analysis of shaft breakage causes in turbo couplings
Forging defects in the shaft of turbo couplings
Untreated bearing damage in turbo couplings
VIII.Abnormal Vibration
The motor or working machine itself vibrates too much
The foundation is not rigid enough, and the contact with the coupler is not solid
The unit installation accuracy does not meet the standard, or the coupling is unbalanced
The bearing clearance is too large, damaged, or the dynamic balance accuracy of the rotating parts is insufficient.
The above faults are mostly related to improper maintenance, installation errors or aging of components. In daily use, it is necessary to pay attention to regular inspections and standardized operations to reduce the occurrence of faults.
