Brief introduction of radial plunger hydraulic motor

Brief introduction of radial plunger hydraulic motor

In some large tonnage or imported truck cranes, radial plunger hydraulic motors are used for hoisting drum, upper slewing and loader slewing. The low-speed high torque hydraulic motor is used to directly drive the working device without the reduction device, so that the mechanism is greatly simplified. However, due to the disadvantages of poor manufacturability, low volumetric efficiency, short service life, high cost and maintenance cost, it is less used in domestic wheeled lifting and transportation machinery. Figure K shows the structure diagram of the inner curved radial plunger hydraulic motor of the lifting mechanism of the truck crane. The rated working pressure is 25MPa and the displacement is 320mm3 / R.

JMD radial crankshaft connecting rod hydraulic motor is a low-speed high torque hydraulic motor with compensated end face flow distribution structure. It has been widely used in the hydraulic transmission system of petroleum, chemical industry, mining, shipbuilding, construction and other machinery, especially for the screw drive of injection molding machine and the drive of lifting winch, drum and various rotating mechanisms In the driving mechanism of crawler and wheel walking mechanism. Figure L shows the structure diagram of 1JMD radial plunger hydraulic motor.