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China YOX Load Limiting Hydraulic Couplings - Quality Suppliers & Factory for Efficient Fluid Transmission
Product Features
- 1 It has the functions of reducing startup shock and isolating torsional vibration.
- 2 It has the overload protection function.
- 3 It has the power-saving function.
- 4 It has the function of slow startup with load delay.
- 5 It has the function of coordinating multi-machine drive.
- 6 It has the characteristics of extending the service life of the motor and the working machine and saving maintenance costs.
- 7 It has the feature of a simple and reliable structure, no special maintenance required, and a long service life.
Product Maintenance
- 1 The hydraulic coupling operates in the same manner as the motor. It can rotate in either direction, but it is not suitable for rapid and frequent reversing.
- 2 After installation, during the first power-on test run, it is necessary to check whether the coupling operates smoothly, without vibration, and without abnormal noise.
- 3 To ensure safe production, a mesh-shaped heat dissipation protective cover should be installed on the coupling.
- 4 When the prime mover reaches the rated speed, it must start to operate; otherwise, it is necessary to check if there is any jamming in the load. At this time, the machine should be stopped immediately for inspection to identify the cause.
- 5 During operation or shutdown, there must be no leakage from the coupling.
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🌡️ During continuous operation, the working oil temperature of the coupling should not exceed 90°C; 70°C is preferable.
- 7 After the first 300 hours of operation of the coupling, the working oil should be drained and replaced with new oil (if the crude oil is not deteriorated and filtered, it can be reused). After 3000 hours of operation, the quality of the working oil should be inspected. If the oil quality deteriorates, new oil should be used.
- 8 Regularly check the wear condition of the elastic blocks. If necessary, replace them. If the elastic block is damaged within a short period of time, it is mostly caused by incorrect installation and alignment. Realign it, and if necessary, use a dial indicator to measure and align.
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⚠️ The fusible plug must not be blocked and cannot be replaced with other items that do not have overheating protection function. When the fusible plug melts, the cause of the oil spraying must be found and the fault eliminated. Reinject the working oil at the specified filling volume, replace the fusible plug with the same specification, or pour in low-melting-point alloy. At the same time, recheck and tighten all the bolts on the coupling circumference.
- 10 Regularly check the installation accuracy of the prime mover shaft and the input shaft of the working machine, and correct it. Do not randomly disassemble the coupling to avoid damaging the seal and balance. Even if disassembled, mark the joints of each component.
Detail Pictures
Frequently Asked Questions
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Q
What is the maximum allowable working oil temperature for the hydraulic coupling?
During continuous operation, the working oil temperature should not exceed 90°C. A temperature of 70°C or below is recommended for optimal performance and longevity. -
Q
How often should the working oil be replaced in the hydraulic coupling?
The working oil should be replaced after the first 300 hours of operation. After that, the oil quality should be inspected every 3,000 hours, and replaced if deterioration is detected. -
Q
Can the hydraulic coupling rotate in both directions?
Yes, the hydraulic coupling can rotate in either direction. However, it is not suitable for rapid or frequent reversing operations. -
Q
What should I do if the fusible plug melts?
First, identify and eliminate the root cause of oil spraying. Then reinject working oil at the specified volume, replace the fusible plug with one of the same specification (or refill with low-melting-point alloy), and retighten all bolts on the coupling circumference. -
Q
What are the main benefits of using a hydraulic coupling?
The hydraulic coupling offers multiple benefits including startup shock reduction, torsional vibration isolation, overload protection, power saving, load-delay slow startup, multi-machine drive coordination, and extended service life for both the motor and the working machine. -
Q
Is special maintenance required for the hydraulic coupling?
The hydraulic coupling features a simple and reliable structure that requires no special maintenance. Routine checks include monitoring oil temperature, inspecting elastic block wear, verifying shaft alignment, and ensuring no leakage occurs during operation or shutdown.