Hydraulic coupling is a hydraulic component whose output torque is equal to the input torque, and it is a mechanical device that uses liquid medium to transmit the rotational speed. Generally speaking, the hydraulic coupling has the following functions:
1. When the hydraulic coupling is used for multistage parallel operation, coordinate the average load distribution when multiple machines are driven.
2. The use of hydraulic coupling can significantly improve the starting performance of the motor and improve the starting ability of the motor.
3, the use of hydraulic coupling can start the load equipment smoothly, reducing the impact and vibration when the equipment is running.
4, the use of hydraulic coupling can protect the motor and equipment, prevent motor overload.
Function of rheostat
A device that can adjust resistance can be connected in a circuit to adjust current. A general rheostat is composed of a wire (resistance wire) with large resistance and a device that can change the contact to adjust the effective length of the resistance wire.
The function of rheostat is:
1, current limiting and protection circuit;
2. Change the voltage distribution in the circuit.