The normal and good working state of the conductive slip ring used in the industrial electrical field and the guarantee of the normal and running of the motor are the importance of the normal operation of the entire industrial system. So how to ensure the normal operation of the conductive slip ring? On the one hand, in addition to purchasing conductive slip ring products, on the other hand, it is necessary to strengthen the maintenance and maintenance of the slip ring in daily use.

When it comes to slip ring maintenance, we need to first understand the internal structure of the slip ring brush wire. A relatively complete conductive slip ring, including the stator part brush bundle, brush holder, and the rotor part rotation axis, is composed of two main parts. The brush holder serves to fix the brush bundle, and contacts the copper ring of the rotating shaft and maintains a certain pressure to achieve the function of transmitting current. During the operation, there are usually: the pressure between the brush and the ring body, the swing of the brush when the ring body rotates, the gap between the brush tow and the brush holder, the working temperature during work and daily maintenance, etc. Attracting sufficient attention is essential for the normal operation and service life of the conductive slip ring.

The pressure between the brush and the rotating shaft determines the contact resistance of the conductive slip ring, and also determines the frictional resistance and wear during rotation. The relationship between pressure and contact resistance and frictional resistance are proportional to each other. If the resistance is too large, sparks will easily cause overheating of the conductive slip ring. Too much friction will accelerate the wear of the conductive slip ring and affect its service life. We usually keep the pressure between the ring body and the brush at 8KPa, and the pressure between the brushes is balanced, so that the conductive slip ring can rotate freely and the conductive performance is also good.

The working temperature of the collector ring is directly related to the formation of an oxide layer on the surface. The oxide layer of the brush is also different from the type of the brush. It is generally easy to form at 70 ℃. The function of forming a uniform and stable oxide layer is that it has good lubricity, which can reduce the loss during friction when the brush is in operation. A good oxide layer is a sign of the good working of the collector ring. Many failures and short use time of the brush are caused by the oxide layer not being formed well. In use, when the wear of the brush reaches 2/3 of the entire height, it should be replaced in time, and all the brushes should be replaced together. This will be very beneficial to the good work of the slip ring.