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Introduction to the working principle of torque motor
  • 19 Nov, 2021
  • Posts by : Raiseway
Introduction to the working principle of torque motor
The torque motor with constant torque characteristics can make the torque basically constant in a generally wide speed range, and is suitable for transmission occasions that require constant torque when the speed changes. For example, in printing and dyeing machinery, when several rollers are used to transport the fabric, since the fabric is not wound on the roller, but only attached to the surface of the roller for transmission, the diameter of the roller does not change. The constant torque characteristic motor is used to ensure constant torque and constant tension of the fabric at any speed.

The torque motor allows long-term low-speed operation, and its heating is very serious, usually using an external blower to force air cooling. When using a torque motor, pay attention to checking whether the blower is in good condition, and there should be a good ventilation environment around it, and no dry and flammable materials are allowed. Flammable dust or volatile combustible oils are near.

Due to different usage conditions, the types and specifications of materials that are wound or transferred by the torque motor driven machinery are different, and the required tension is different. It is required to adjust the torque of the torque motor, or to change the speed within a certain range, usually by adjusting the applied torque The voltage on the motor meets these requirements. A voltage regulator is usually used to change the input voltage of a torque motor. In the occasions where the mechanical characteristic hardness and adjustment accuracy are required to be improved, the SCR speed negative feedback control circuit can also be used for stepless speed regulation, but the system is more complicated.

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