The matching of the collector ring and brush

A collector slip ring with the brush, when the brush is too strong, abrasive material collector ring is too soft, it often occurs on the collector ring is equivalent to the width of the ladder brush wear. Especially in high-temperature and low humidity totally enclosed motors, brushes, or more likely to cause excessive collector ring wear. Scar is formed by a ghost, at the beginning only a very small scars, brush collector poor in these parts to produce sparks. Once sparks wounds gradually deteriorated to expand, the final formation of the sliding contact surface with the brush the same size as the size of the scars. Thus, the collector ring brush even a very small sparks must also be noted.

Slip ring can also be based on usage made ​​into a variety of special shape, hybrid transmission power, light slip ring
, The fluid pressure source, or with other electrical components equipped with, such as: special shaped, oversized shape, Siamese gears, sprockets, pulleys, plugs, power and light mixed, power and pressure fluid mixing, equipped with light, electricity, sound, temperature sensors, fiber optic transceivers, pressure gauge, pneumatic components, combined into a versatile electrical parts assembly, in order to save space and simplify the design of the structure of the special requirements.
First, the brush may exist only in the DC motor. He is used to achieve the mechanical and commutator with commutation, which is to ensure input to the DC motor or DC generator output power to DC! With the development of power electronics technology, the use of electronic devices commutated brushless DC machines also began to appear widely and developed. Other motors (induction motors and synchronous motors) are AC motor, no brush structure. rotary joints