In the production process of some textile, paper, metal processing, plastics and other industries, it is often necessary to wind the product on the drum or reel operation, here a problem that needs to be solved: how to keep the change of tension and line speed within the allowed range during the process of gradually increasing the drum diameter from the beginning to the back.Torque motorIt can solve this kind of problem, which is one of its characteristics.

       This motor belongs to a series of three-phase asynchronous motors, and the point that is different from the general asynchronous motor is its mechanical characteristics, which is the problem we mentioned earlier, look at the picture:

       Figure 1:MRepresents torque,nRepresents the speed of rotation,n0Represents synchronous speed,nmThe corresponding speed is the peak torque, which belongs to the dividing line between the "stable part" and the "unstable part" of the motor.nmn0Part of the stable operation,0nmIt is an unstable part. ifTorque motorIn the original "stable" part of the point1Running, but for some reason, the load torqueMHIncrease toMHWhen the torque of the motor is smaller than the load torque, it will start to slow down, but the speed will decrease, and the output torque will increase; withMHAfter balancing, the motor will stabilize at the point2Start running at speed ofn2(n2

       0nmIt belongs to the unstable operating area, which is the load torque junction in this section3Is unstable because the corresponding point3The speed of the external speed will increase slightly due to some external influence, and the torque will exceed the loadMHThe point at which the motor accelerates and runs on the second stage2Corresponding speedn2; If for some reason outside the point3If the speed is slightly reduced, then the torque will be lower than the load and drop to zero. In this way,Torque motorThe range of speed that can be varied is limited only tonmn0In this area, if you want to increase the range you have to make a larger torquenmThis point shifts to the left.

       Due to the soft characteristics, a small load change can cause the corresponding change of the speed of the motor shaft. The curve in Figure 2 shows the corresponding relationship between the gradual increase of the load and the corresponding decrease of the speed.

       The above content is composed ofTorque motor manufacturerMori machineProvided, if you are interested in understanding our products, welcome to leave an online message or call directly:0575-8378-1127.