What Motor Is Used In Cold Rolling Mill?
What motor is used in the cold rolling mill? Or what kind of motor is used in the cold rolling mill? Gongyi Jindi Metallurgical Equipment Co., Ltd is a manufacturer with more than twenty years of research and development of cold rolling mill, steel rebar rolling mill and cold rolled steel mill. Below, we will explain the types of motors used in cold rolled steel mill.
There are many types of motors, and cold rolled steel mill use DC series-excited motors. The series-excited motor connects the main magnetic pole excitation winding in series with the armature winding. Obviously, its excitation current is equal to the armature winding current. There are also three types of such motors. The maximum difference between the series-excited motors and the separately excited and shunt-type motors is the soft-mechanical characteristics. The so-called soft mechanical characteristic is that when the device that converts electrical energy into other forms of energy is called load mitigation,
the motor speed increases, thereby improving efficiency. When the load increases, the motor speed decreases.But the torque increases, the current does not increase much,it has a large overload capacity, and can ensure safe operation, which is its greatest advantage.
The excitation winding of the series-excited DC motor is connected in series with the rotor winding through the brush and the commutator. The excitation current is proportional to the armature current. The magnetic flux of the stator increases with the increase of the excitation current. The torque is similar to the direct proportion of electric current. The rotate speed decreases rapidly with increasing torque or current.The starting torque can reach more than 5 times of the rated torque, the short-time overload torque can reach more than 4 times of the rated torque, the speed change rate is large, and the no-load
speed is very high (it is generally not allowed to run under no-load) ). Speed regulation can be achieved by connecting (or in parallel) the series windings with external resistors or by switching the series windings in parallel.
What kind of motor is used for the cold rolling mill is the above.The machinery and equipment produced by Gongyi Jindi Metallurgical Equipment Co., Ltd include: cold rolling mill, steel cold rolling machine,rebar cold rolling mill, cold rolled ribbed steel bar machine, steel rebar rolling mill and cold rolled steel mill, cold rolled ribbed steel bar production line, wire-receiving machine, steel bar Straightening cutting machine, steel straightening machine, steel cutting machine, flying shear cutting machine, steel bar stretching machine, high-frequency heat treatment equipment, steel straightening and cutting machine, I-shaped wheel take-up machine, steel filp rack, etc.For more details, please visit www.jindimachine.com or call: 0371-64388822,13674996266 to consult with us!
Tel: 86+13674996266, 86+37164388822