The function of the slip ring faults in the collector ring

The slip rings are also called conductive rings, current collecting rings, slip rings, conductive slip rings, brushes, slip rings, rotary joints, rotating electrical joints, etc. The conductive rings can improve the system performance, simplify the system structure, and avoid the rotation of the active joints. And sprain the wire. Widely used in security, wind power, factory automation, power, finance, instrumentation, chemical, metallurgy, medical, aviation, military, shipbuilding, transportation, construction and other mechanical and electrical equipment. Next, Xiaobian introduces the function of the collector ring and the fault handling of the collector ring short circuit.

The role of collector ring

1. The slip ring is also called conductive ring, slip ring, slip ring, slip ring, etc. It can be used in any electromechanical system that requires contact rotation but also needs to transmit power box signals from a fixed position to a rotating position. The slip ring can improve the system performance, simplify the system structure, and avoid sprains caused by the wire during rotation.

2. The slip ring is generally used on the commutator of the motor as the sliding contact body for guiding the current into and out of it. Its conductive, thermal and lubricating properties are good, and it has certain mechanical strength and instinctiveness of commutation spark. Nearly all motors use the Seikai collector ring, which is an important part of the motor. The collector ring is widely used in various AC and DC generators, synchronous motors, battery DC motors, crane motors, and various welding machines.

3. It is widely used in synchronous motors including turbine generators with lower peripheral speed. For collector rings such as automobile generators, which mainly emphasize mechanical strength and wear resistance at high circumferential speeds, forged steel is sometimes used. In addition, when corrosion resistance is required, stainless steel may be used. However, the sliding characteristics of stainless steel are not stable, and the combination with the brush is unsuitable, which often causes the brush to fluctuate, which may cause the brush temperature to increase excessively or abnormal wear. Double attention.

Collector ring short circuit fault handling

During the operation of the motor, it will abruptly drop in voltage and then need to be sent to the motor maintenance department for repair. Through testing, the technician found that it had two sets of electrical loop short circuits, and that there was a phenomenon of blackening at the place where the electrical loops and the windings were connected, and at both ends of the column, the insulating sheet also broke down, and there would be Burnt smell, this is because the motor has not been maintained for a long time. When it is in operation, soot and dust will accumulate, and then it will get wet. As a result, the resistance of the slip ring will drop, and over time If it is not dealt with in time, it will burn out.

After finding the reason, we can remove the end cap of the collector ring first, and then clean the oil and dust, and loosen the screws inside, clean the bamboo, etc., and check if the resistance is good. Reassemble the test machine to see if the motor is normal. Therefore, we usually maintain the motor is very important, it can reduce the occurrence of failure, of course, the problem must find a professional motor repair personnel to deal with.

Editor's summary: The function of the collector ring and fault handling of the collector ring are introduced here, and I hope to be helpful to everyone. If you want to know more related information, you can pay attention to this website information.

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