High speed hydraulic motor Its main characteristics are: high rotation speed, small inertia moment, good for starting and braking, and high sensitivity of speed change and reversing. High speed in general Hydraulic motor The working output torque of is small, only more than 40 to several hundred N × m, so it is also called high speed small torque hydraulic motor. High speed hydraulic motors include transmission gear type, impeller vane type, axial hydraulic plunger pump type, etc.

The hydraulic motor is Hydraulic transmission device The operating components in the system convert the hydraulic energy from the hydraulic oil pump into the mechanical kinetic energy for reversing operation, and then drive the load rate to operate. Generally, hydraulic motors can be divided into high speed and low speed.

1. The rated rotating speed of more than 500rPM is often regarded as a high-speed hydraulic motor, and the primary modes are transmission gear type, screw type, impeller vane type, and axial hydraulic plunger pump type. It is characterized by high rotation speed, high output power density, low inertia torque, low fuel consumption, convenient starting, braking, speed change and reversing, but the working output torque is not large, usually more than 40 to more than 100 Nm (N.m), which can not directly meet the demand of the load rate of the project for torque under more conditions, so it is necessary to equip mechanical equipment speed reduction organizations, The application is subject to corresponding limitations. 2. Rated rotating speed less than 500rPM is often called Low speed motor 。 The low-speed motor consumes a lot of oil and has a large size. When the rotation speed is less than a few revolutions per minute or even a few revolutions at zero, it can still work stably and output a torque of thousands or even tens of thousands of Nm (N.m). Therefore, it is also often called a low-speed large torque hydraulic motor. The main modes are multi-function internal crank column (ball) plug hydraulic motor and radial hydraulic piston pump hydraulic motors such as crank connecting rod type and pressure equalization type. It is more suitable for directly connecting and driving the load rate, without the need for speed reduction organization, and the time for starting and accelerating speed is short, with good performance indicators. Considering the large working output torque, it has been widely used in mechanical equipment.