The function analysis of hydraulic cam and groove coupling in the step-down start system of motor

　　In the start process, motor is static, and hydraulic cam and groove coupling, static motor working machine is static, cam and groove coupling and auxiliary cavity and the working cavity working oil Wei flat, so that the work of cavity flushing rate decreased, and create the conditions for reducing the starting torque.

　　In start process, motor runs step-down start, open rotary valve of cam and groove coupling, start the motor in low voltage, the hydraulic cam and groove coupling fluid for circulation, in the role of loop flow pressure, liquid through the rotary valve to flow to the auxiliary chamber, so that the coupling torque reduction. Motor load torque and low start smoothly, quickly with coupling pump wheel speed to the rated speed, the starting current is greatly reduced.

　　Rotary valve shuts off: when the motor's speed exceeds range. Later, when the rotating valve is closed under the action of centrifugal force, the working chamber and the auxiliary chamber passage is betting, working liquid stop backward auxiliary cavity flow.

The latest news:
Why can the motor not turn up after the installation of cam and groove coupling?
How to judge the cause and how to eliminate the fault, when the working machine can not start?
What's the influence of technical operating and maintenance factors of cam and groove coupling in the fault?
Cam and groove coupling supplier teaches you how to reduce the repair time
What are the cam and groove coupling product's maintainability and product's repair time?