Unwinding is also known as unwinding, unwinding, unwinding, etc. We generally use torque motors to complete this operation. In industrial production, it is sometimes necessary to transfer the product to the next process. In the transmission process, it is necessary to apply tension to the product in the opposite direction of transmission.
At the same time, the linear speed and reverse tension of the product transmission are required to remain constant with the change of the barrel diameter, which requires the motor to have the characteristics of constant braking power.
Make use ofTorque motorThe mechanical properties in the braking state, the rolled product will be loosened again, to avoid the loosening and tightness in the loosening process affect the product quality. The principle is the same, and the take-up is the same.
The mechanical characteristics of torque motor are very soft, with the increase of load, the motor speed decreases, the output torque increases, and the output torque is proportional to the square of the voltage. If the load is fixed, the speed of the motor will change as the voltage changes.
Therefore, on the dead load device, as long as the input voltage of the motor is changed by the voltage regulator, arbitrary speed can be obtained. However, when the torque motor is running at low speed, its efficiency is very low, which is not conducive to long-term low speed operation.
The torque motor can also be flexibly applied according to its various characteristics, such as the characteristics of the current series motor, which can partially replace the DC motor. According to its rotor has high resistance characteristics, the starting (locking) torque is large, so it can be used for opening and closing gates or valves and drag systems with large resistance moments;It can also be used for the characteristics of large starting (resistance) torque, small starting (resistance) current and high mechanical strength of solid rotor.
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