Product details
Electric locomotive accessories are the general term for the parts of the assembled electric locomotive, which are composed of mechanical devices and electrical equipment.
The mechanical part mainly includes walking device, braking device, buffer, spring damping and so on. The electrical equipment mainly includes DC traction motors, driver controllers, resistors, automatic switches, plug connectors, explosion-proof lights, etc.
[14 ton overhead wire type electric locomotive DC traction motor ZQ-52-1 brush holder assembly] The function of the motor brush holder is to apply pressure through a spring to the carbon brush that is in sliding contact with the surface of the commutator or the collector ring , So that it conducts current stably between the fixed body and the rotating body. For the motor, the brush holder and carbon brush are very important components. No matter how good the characteristics of the carbon brush are, when the brush holder is not suitable, the carbon brush will not only fail to give full play to its excellent characteristics, but will also have a great impact on the performance and life of the motor itself.
The structure of the brush holder is the part of the brush box that keeps the carbon brush in the specified position, the press part that presses the carbon brush with appropriate pressure to prevent the carbon brush from vibrating, connects the frame part of the brush box and the press part, and fixes the brush holder to The fixed part of the motor is composed.
[Performance requirements for the brush holder of the motor] When maintaining the stability of the carbon brush, checking or replacing the carbon brush, it is easy to install and remove the carbon brush in the brush box, and the exposed part of the carbon brush under the brush box can be adjusted (the lower edge of the brush box and the commutator) Or the gap on the surface of the slip ring) to prevent the commutator or slip ring from being worn out, changes in carbon brush pressure, pressure direction and pressure position, etc., have a small impact on the carbon brush wear, and the structure is firm. The carbon brush holders are mainly made of bronze castings, aluminum castings and other synthetic materials. The material of the brush holder is required to have good mechanical strength, processing performance, corrosion resistance, heat dissipation and electrical conductivity.
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