Time : 2023-09-22 Browse : 28
As the core component of modern industrial transmission system, hydraulic coupling plays an important role in power, chemical, construction and other industries. To ensure the long-term stable operation of equipment, the following are the key points for maintenance:
I. Selection and Management of Working Fluid
Priority is given to 32# turbine oil as the standard working medium.
Key indicator requirements:
Viscosity at 50℃: 22~32㎡/s
Flash point ≥ 180℃
Good lubricity and corrosion resistance
Regularly test oil quality and replace aged oil in a timely manner for hydrodynamic couplings.

II. Running Direction Specification
Confirm that the rotation direction of input/output ends is consistent
The torque-limiting coupling can be used in both directions, but frequent forward and reverse switching should be avoided
The working machine should maintain normal operation at rated speed
III. Start-stop Operation Specification
Strict Frequent start and stop operations are prohibited
Continuous operating temperature should be controlled below 90℃
Special attention:
High temperature will cause loss of fusible plug alloy
Overheating may cause the risk of working fluid injection
IV. Daily Maintenance Focus
Regularly check the status of seals
Monitor the operating temperature of bearings
Keep the cooling system unobstructed
Establish a preventive maintenance plan
V. Safety warning
Prevention of working fluid injection risk
High temperature scald protection measures
Abnormal vibration timely investigation
Through standardized maintenance, the hydraulic coupling can achieve optimal performance:
Extend the service life of the equipment by more than 30%
Reduce the risk of unexpected downtime
Maintain stable transmission efficiency