Low frequency slip ring A slip ring assembly that uses […]
Low frequency slip ring
A slip ring assembly that uses a sliding contact to transmit low frequency signals and energy. A typical slip ring has a cylindrical slip ring and a differential slip ring. The conductive ring of the cylindrical slip ring is further divided into a flat ring and a V-ring. The material of the conductive ring is usually made of copper, brass, coin silver and gold. The brush has a palladium, gold alloy or gold plated wire brush and a copper graphite synthetic brush. If the number of slip rings is large, the cylindrical slip ring is composed of upper and lower sets of brushes and a differential adapter plate (Fig. 1), but its axial dimension is large, and the differential slip ring can be significantly reduced. Axial size, reduced volume and weight. The differential slip ring is composed of upper and lower sets of brushes and a differential adapter disk. The upper brush rotates with the antenna azimuth, and the lower brush is fixed. The differential adapter plate has two upper and lower contact pieces, and the corresponding contact piece is connected by a wire, and the differential mechanism is used to make the rotation speed 1/2 of the azimuth rotation speed. . When the antenna rotates, the current flowing into each of the lower brushes passes through one or two contact piece circuits on the differential turntable, and flows out from the corresponding upper brush to ensure that the circuit between the fixed portion and the rotating portion is always turned on. The powder worn by the sliding contact slip ring may cause a short circuit between the ring and the ring. Therefore, it should be structurally guaranteed to be easy to clean, usually with a combined structure for on-site repair or replacement of components.