Popis: |
In order to meet the needs of the market, such as small size, low power consumption, and low cost, the finite element analyzing software is used to design DC brake. The optimization design of DC electromagnet using magnet is introduced, including the determination of the electromagnet material, air-gap length, etc. According to the characteristics of DC brake, which are needing larger initial suction and maintaining smaller suction, the control circuit is designed, which is strong excitation starting, weak excitation maintaining. This circuit is simple, reliable and has achieved high efficiency and energy saving purposes. The results of experiments indicate that the DC brake has characteristics of small starting current, simple structure, rapid action, high reliability and durability. |