What is the main role of the motor?

Time:2017-10-24 12:00:00

Turn an energy into kinetic energy and let the machine work.

The motor is a foreign language and is a device for outputting power. Commonly, there are electric motors and oil motors.


An electric motor, also called an electric motor, is a mechanical energy that converts electrical energy into rotation for mechanical use. The oil motor provides mechanical energy for converting the pressure energy of the pressure oil into rotational mechanical energy. The motor is easy to install and use, but the starting stability is poor. The oil motor transmits the power more smoothly and the noise is low, but the device is more complicated.


The types of motors are as follows:


Hydraulic motor: It is customary to refer to the energy conversion device that outputs the rotary motion and converts the hydraulic energy provided by the hydraulic pump into mechanical energy.


High-speed motor: Gear motor has the advantages of small size, light weight, simple structure, good maneuverability, insensitivity to oil contamination, impact resistance and low inertia. Disadvantages include large torque ripple, low efficiency, low starting torque (only 60% of rated torque - 70%) and poor low speed stability.


The blade motor is a hydraulic motor in which the blades in the rotor slot are in contact with the casing (stator ring) and rotate the rotor under the action of the flowing liquid. Compared with other types of motors, the vane motor has the advantages of compact structure, small contour size, low noise and long service life. Its inertia is smaller than that of the plunger motor, but its pollution resistance is worse than that of the gear motor, and the rotation speed cannot be too high. Work below 200r/min. The blade motor is unstable due to a large change in load or low speed.


Low-speed hydraulic motor; radial piston motor Link-type hydraulic motor is simple in structure, reliable in operation, variety and specifications, and low in price. The disadvantage is that the volume and weight are large and the torque ripple is large.


Cycloidal motor: It is a small, low-speed, high-torque hydraulic motor with internal meshing cycloidal gear. The structure is simple, the low speed performance is good, and the short-term overload capability is strong. The cycloidal motor has a stator and a movable blade. The stator, the vane and the drive shaft divide the motor into two chambers. Each chamber has a port. When one port is oiled, the other oil is discharged. swing.