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The use and maintenance of speed adjustable hydraulic coupling device
Nov 16, 2017

1. Check before starting

(1) check the oil level to make sure the oil level is suitable;

(2) check whether the coupling and cooler pipes are connected correctly;

(3) check whether the electrical wiring of each instrument is connected correctly;

(4) check whether the coupling and protective cover are installed correctly;

(5) check whether the coupling of oil tank is appropriate, when the oil temperature is lower than 5 ℃, using electric heater to heat oil work;

(6) check whether the coupling catheter is adjusted to the minimum speed device.

2, run,

(1) the coupling is equipped with an electric actuator which is manually operated.

Manual or automatic control of electric actuators to adjust the position of the catheter and change the filling degree of the coupling cavity, thus changing the output speed and output torque of the coupling.

(2) the coupling of the catheter is the lowest, the catheter is fully extracted (100%), the speed is the highest (the rated speed and the rated power).

The speed should not be too fast, usually within 25 seconds when the catheter is adjusted from 0% to 100%.

(3) the coupling speed range is different with the working machine.

Match with centrifugal machine, speed range 1-1/5, matching with constant torque machine, speed range 1-1/3.

(4) the speed regulating hydraulic coupling is matched with the centrifugal machine, and its maximum heating condition is at the speed ratio I = 0.66, and the maximum heating power loss is about 15% of the rated power of the motor.

Therefore, it is necessary to avoid long-term work near the hottest hotspots.

(5) constant torque mechanical adaptor, speed ratio I equals efficiency, that is, the larger the speed adjustment, the larger the loss power, and the greater the heat.

Therefore, the constant torque mechanism is not too large to adjust the speed of the hydraulic coupling, especially not the long time.

(6) when the output speed of the coupling device is very low, that is, when the catheter's position is near zero, there may be noise that has not occurred in normal working range.

This is due to the "whistle effect" caused by the encounter between the nozzle and the outer edge of the pump.

In case of this situation, only a slight increase in the position of the catheter can be removed, not belonging to the coupling failure.

(7) it is necessary to check whether the oil temperature of the coupling oil is normal in operation.

Find out the reason and eliminate the abnormality.

3. Maintenance

(1) check the tank oil level regularly and replenish the oil in time;

(2) after 500 hours of operation of the new machine, the oil suction oil filter should be removed and cleaned;

(3) the machine should be used for maintenance and maintenance, and the oil pump and oil filter shall be regularly cleaned;

(4) regular inspection of oil quality and timely replacement of qualified work oil;

(5) if the oil in the case of the coupling must be emptied, the drain holes in the lower part of the box and the input of the box can be unscrewed, and the globe valve can be loaded at the drain hole.

Instructions for ordering:

Should indicate the product model specification when you order it, power machine and working machine to species (to indicate to stand watch hydraulic coupling in the motor in the input is clockwise or counterclockwise turn), speed, power, the size of the flange and shaft, electric actuator with type II or III.