Electric brush for traction motor

Abstract

The invention discloses a brush for a traction motor, which comprises a traction motor, a fixed plate is arranged on the left side of the traction motor, and the fixed plate is connected with bolts of the traction motor, and a rotor is arranged inside the traction motor, and A slip ring is set in the sleeve, and the slip ring is connected with the rotor bolts, and the rotor is connected with the traction motor key, and the top of the traction motor is provided with a brush fixing frame, and the left bottom of the brush fixing frame is provided with a plug-in plate, and the plug-in The board and the brush fixing frame are integrated, and the left side of the plug-in board is provided with a top block. The brush used for the traction motor, through the cooperation between the brush fixing frame and the brush holder, under the action of the fixing plate, the brush cover and the pressure spring, the connection between the brush and the slip ring of the traction motor is more firm, And it is convenient to disassemble and replace, improves the product quality of the electric brush for the traction motor, saves the purchase cost of the user, avoids the resource waste of the electric brush, and is suitable for popularization and use.

Description

technical field [0001] The invention relates to the technical field of traction motors, in particular to a brush for traction motors. Background technique [0002] Brushes are widely used in many electrical equipment. It is a device that transmits energy and signals between the fixed part and the rotating part of a motor, engine or other rotating machinery. Its components are mainly composed of graphite, resin adhesive and other auxiliary materials. agent, and then made by sintering, conventional carbon brushes generally have problems such as large loss and short service life during use; [0003] The brushes are mostly assembled on the commutator or slip ring, which is a sliding contact body, which needs to have characteristics such as smoothness, wear resistance, and good conductivity. According to different applications, they are either partial metal parts (copper, silver, molybdenum, etc.) ), rich or entirely made of metal, in actual use, a slip ring is usually equipped ...

AI Technical Summary

Problems solved by technology

[0002] Brushes are widely used in many electrical equipment. It is a device that transmits energy and signals between the fixed part and the rotating part of a motor, engine or other rotating machinery. Its components are mainly composed of graphite, resin adhesive and other auxiliary materials. agent, and then made by sintering, conventional carbon brushes generally have problems such as large loss and short service life during use;

[0003] The brushes are mostly assembled on the commutator or slip ring, which is a sliding contact body, which needs to have characteristics such as smoothness, wear resistance, and good conductivity. According to different applications, they are either partial metal parts (copper, silver, molybdenum, etc.) ), rich or entirely made of metal, in actual use, a slip ring is usually equipped with at least two brushes, to avoid an open circuit due to poor contact of a single brush, in the prior art, between the traction motor and the commutator The intermediate frame is often used for connection, and the intermediate frame lacks a positioning device for the brush, which often makes the brush in a suspended state, and is only connected to the commutator or slip ring through the connecting end at the top of the brush. The wear of the commutator or slip ring is relatively high. In view of these situations, in order to avoid the above-mentioned technical problems, it is necessary to provide a brush for traction motors to overcome the defects in the prior art

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