The structure of torque motor is circular, which can be divided into rotor motor with the outer ring of the rotor, inner motor with the stator motor, inner motor with the outer ring and inner motor with the rotor. The same size, the external rotor can produce a larger torque, so the external rotor motor is more commonly used.
Torque motorCan be divided into∶Dc torque motor, AC torque motor, DC brushless torque motor.
The principle is that in the constant torque characteristic, the torque motor can keep the torque constant in the large speed range. It is suitable for transmission occasions requiring constant torque when changing speed.
The reducer can be achieved to increase the output torque while decelerating. The torque output ratio is the motor output multiplied by the reduction ratio, but must not exceed the rated torque of the reduction gear. The inertia of the load that is simultaneously reduced by deceleration, the inertia is the square of the deceleration ratio. Generally, it is the inertia value of the general purpose motor.
Generally through the motor, internal combustion engine or other power, through the high-speed operation of the gear reducer or the input shaft gear of the reducer to drive the large gear, to achieve a certain reduction effect, and then use a multi-level structure to reduce the speed and reduce the output torque.
According to the transmission mode, the reducer is divided into gear, turbine and planetary gear; According to the different transmission series can be divided into single stage and multistage; According to the transmission form is divided into expansion, shunt and coaxial; According to the drive motor can be divided into DC, stepping, servo and so on.
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