On the concept of tractor, Zhejiang Mingyuan Machinery Equipment Co., LTD., tell you

An electric motor used in a locomotive or locomotive to drive one or more moving axles. There are many types of traction motors, such as DC traction motors, AC asynchronous traction motors and AC synchronous traction motors.

Zhejiang Mingyuan Machinery Equipment Co., LTD., said that DC traction motor, especially DC series motor has better speed regulation performance and working characteristics, adapt to the needs of locomotive traction characteristics, has been widely used. The working principle of traction motor is the same as that of general DC motor, but it has special working conditions: the space size is limited by the rail gauge and the diameter of the driving wheel; When the locomotive runs through the rail gap and switch, it must bear considerable impact vibration; The armature will produce strong torsional vibration when the large and small gear meshes poorly. In harsh environment, rain, snow, ash and sand easy to invade.

Therefore, traction motor has many requirements in the design and structure. For example, to make full use of the internal space of the body to make the structure compact, to use more advanced insulation and magnetic materials, parts need to have higher mechanical strength and stiffness, and the whole motor needs to have good ventilation and heat dissipation conditions and dustproof and moisture-proof ability. Special measures should be taken to deal with more difficult "reversing" conditions to reduce the sparks under the brush, etc.