Under What Circumstances Is A Fly Wheel Needed

Fly wheel rotates at high speed, which can store energy due to inertia, and also can release energy to overcome resistance to movement and make the engine run smoothly. When running at high speed, the flywheel can store energy and make it pick up speed slowly to avoid damage to other parts caused by violent high-speed operation or to cushion the loss of control due to mismanagement. When low-speed operation, the distance can be released from the energy, so that it slowly reduce speed, to avoid sudden low speed resulting in stopping.

In order to make the rolls through the rolls when plastic deformation, the main motor must make a certain force to turn the rolls, the force of the rotation of the rolls called the motor load torque. In the rolling process, the load torque of the motor is not uniform. When the mill rolls are idle, the motor load torque is the smallest, the motor load torque increases when rolling, and changes with the amount of pressure, rolling temperature, hole shape and other factors. General cross-sectional steel mill gap time, that is, the motor idle time, accounting for about 50% of the cycle time. If the motor capacity is selected based on certain load moments, it will form only when the steel, that is, pure rolling time, the motor is full load, and in the motor idle load is not enough, which can not give full play to the role of the motor, resulting in a waste of motor capacity. In order to solve this contradiction, the pure rolling time is short, the gap time is long, and there is a short period of spike load mill, usually in connection with the AC asynchronous motor reducer high-speed shaft installed flywheel, flywheel in the no-load energy storage, in the peak load to release energy, can make the motor load uniform and reduce the maximum load torque. But the pure rolling time is long, the gap time is short, no spike load mill should not be installed flywheel, because in this case, the flywheel storage, release energy role is not significant, and the flywheel itself also consumes a certain amount of energy.