High speed hydraulic motor Its main characteristics are: high rotation speed, small moment of inertia, convenient starting and braking, and high sensitivity of speed change and reversing. General high-speed Hydraulic motor Its output torque is small, only tens to hundreds of N x meters, so it is also called high-speed small torque hydraulic motor. High speed hydraulic motors include gear type, vane type, axial plunger type, etc.

The hydraulic motor makes the hydraulic system output rotation speed and torque, and pushes the running parts to rotate. From the basic working principle, the hydraulic pump and hydraulic motor in the hydraulic system are all operated by the change of closed capacity. In principle, they are reversible, but their structural characteristics are different and cannot be used universally.

1、 The following conditions shall be fully considered when selecting high-speed motor:

1. Rotating speed range of hydraulic motor

2. Starting torque and continuous running torque of hydraulic motor

3. Operating pressure of hydraulic motor (for example, pushing centrifugal fan is not a normal hydraulic motor, and the thrust or tension of motor should be fully considered)

4. Special attention shall be paid to the hydraulic motor oil passage to generate serial series

5. Space used for installation and cost of design scheme

High speed motors usually use plunger motors, but many regions also use gear motors, vane motors; It is also a high-speed motor, but it is rare.

2、 Difference between high-speed and low-speed hydraulic motors

High speed motor has the advantages of small size, light weight, simple and clear structure, good process performance, insensitive to the damage of hydraulic oil, low impact resistance and inertia force. The disadvantages include large torque pulsation, low working efficiency, small starting torque (only 60% - 70% of the rated torque) and poor low speed stability. Low speed hydraulic motors are simple and clear in structure, reliable in operation, various in types, specifications and models, and cheap in price. The disadvantage is that the volume and net weight are relatively large, and the torque pulsation is relatively large. The rotation speed and torque of the hydraulic motor have a great influence. Although you can adjust the rotation speed through flow, the torque of the motor is the basic parameter equipped according to the design standard.

Attention shall be paid to the selection of hydraulic motor model:

1. Rotating speed;

2. Rated flow; 3. Torque; 4 Rated working pressure; 5 Installation and use method.