Collector ring product knowledge to explain

Increased upper and lower collector rings spacing. Increased collector ring spacing of the main purpose is to prevent units passed to lift up and down between the collecting ring short circuit, reducing the probability of collector ring topic ablation. Instead of collecting ring torus as spiral grooves torus. The old collector ring torus are planar structure, easily lead to brushing surface to form tiny gas membrane, is not conducive to a carbon brush and a collector ring torus full contact. New electric ring torus with spiral grooves torus, increased collector ring brush between the torus and permeability, is conducive to the collector ring torus full contact. This structure has been in the Three Gorges units and Gezhouba Dam capacity unit has been successfully applied. Widening the collector ring. Current collector ring width of 40mm, after the transformation of collector ring width will increase80 mm, increase the collector ring width can improve the heat dissipation performance of collector rings, and is beneficial to brush and a brush holder mounting mode transformation. Collector ring replacement: A conductive ring is also called ring collector, collector, collector ring, conductive slip ring, brush, slip ring, rotary joint, electric rotary joints, conducting ring can improve the system function, the system structure is simplified, avoid the flow of joint rotation and twisted wire. Widely used in security, wind power generation, factory automation, power, finance, chemical, metallurgical, instrumentation, medical, aviation, military, marine, transportation, construction and other mechanical and electrical equipment, a conductive ring can be used in any required continuous rotation at the same time, also need from fixed position to the rotation position of the transmitting power and the signal of mechanical system in. Collector ring slip type working surface is smooth, there is no burn marks, streak defect. Requirements of working face smooth, not due to rust and grease. Collector ring insulation outer binding to accurately, good sealing. If there is no good treatment, can be used in synthesis of resin impregnated fiberglass cloth binding, to prevent the operation of the motor leakage mica scattering. Collector ring is matched with a shaft and the ring and the insulating sleeve matching should be firm, with a small hammer small buckle copper ring and a set of copper coordination office, the metal sound. Collector ring of insulating casing integrity no crack and no loose. Lead wire connection should be firm, insulation resistance value in working temperature of 75 shall be not less than0.5M Ω. In the brush device, requirements brush box lower edge of the collecting ring and2~4mm apart from the surface, will cause the brush in the brush box seat, if it is hard brush, probably fragmentation. Brush in the brush box internal flexible sliding, brush box inner hole smooth surface, brush box aperture dimension tolerance is H10, the axial dimension tolerance is H8. Collector ring brush in operation, the contact surface to form a layer of average, moderate, chaos of the oxide film, this is one of the main symbols of the motor runs well. As a result of this oxide layer exists, change the brush and collector ring contact characteristics, reduced friction, reduced wear, prolong the using life of. Film is a kind of composite film, its composition and brush type and collector ring material composition. Normal thickness of oxide film in8 - 100nm range, is generally 25nm. With electronic microscope, the brush and collector ring contact surface are composed of a large number of point contact contact surface, generally only brush the total area of a few thousandths around.