CN205070125U - Electric brush - Google Patents

Abstract

The utility model discloses an electric brush, include: the brush body and wire, the top surface of the brush body is for being used for the inclined plane of the horizontal component of production. The wire is buryyed brush internal portion and stretch out from brush body top surface. The wire cover that stretches out from brush body top surface be equipped with be used for to the spring that the top surface was exerted pressure. The utility model discloses the operation in -process can not the run -off the straight, simple structure, long service life.

Description

A kind of brush

Technical field

The utility model relates to brush, and particularly relating to a kind of brush body end face is the brush on inclined plane.

Background technology

Brush is a vitals of motor, plays a part to import and derived current in motor, sometimes also will carry the effect of commutation.Motor is in the process run, the slip that one relative is had between commutator and brush brush body, due to the existence of the relative sliding of the bottom surface of commutator and brush brush body, the bottom surface of brush brush body can be subject to the power of a transverse direction, cause the bottom surface run-off the straight of brush brush body, thus brush brush body bottom surface can be made to exist extremely with contacting of commutator, and then cause the increase running spark, affect the overall operation performance of motor.

Summary of the invention

The purpose of this utility model is exactly to overcome above-mentioned prior art Problems existing, provides a kind of brush body end face to be the brush on inclined plane, and this brush can not run-off the straight in running, and structure is simple, long service life.

In order to realize above-mentioned purpose of the present utility model, provide following technical scheme:

A kind of brush, comprising: brush body and wire, and the end face of described brush body is the inclined plane for producing horizontal component.

Preferably, described wire is imbedded described brush body inside and is stretched out from brush body end face.

Preferably, the described wire stretched out from brush body end face is arranged with for executing stressed spring to described end face.

Preferably, described spring is perpendicular to described end face.

The beneficial effects of the utility model embody in the following areas:

Brush brush body end face of the present utility model is inclined plane, horizontal component can be produced time spring exerts a force to this inclined plane, due to the existence of the horizontal component of this horizontal component and brush body bottom surface, brush entirety is made to keep a stable plumbness all the time with commutator, whole service process will be stablized for the brush that top is plane, and brush of the present utility model is parastate with the copper sheathing being enclosed within its outside, is not easy stuck in whole service process.

Accompanying drawing explanation

Fig. 1 is the structural representation of a kind of brush of the utility model;

Fig. 2 is the force analysis figure of the utility model brush end face in running;

The force analysis figure of Fig. 3 to be end face be brush of plane;

Fig. 4 is the force analysis figure of the utility model brush.

Description of reference numerals: 1-brush body; 11-end face; 2-wire; 3-commutator.

Embodiment

As shown in Figure 1, the utility model provides a kind of brush, comprising: brush body 1 and wire 2.Concrete, the end face 11 of brush body 1 is inclined plane.Wherein, wire 2 is imbedded brush body 1 inside and is stretched out from brush body 1 end face.The wire 2 stretched out from brush body 1 end face is arranged with for executing stressed spring (not shown) to end face 11, and spring is perpendicular to end face 11.

As shown in Figure 2, in motor operation course, spring applies the pressure F perpendicular to end face 11 to end face 11, and this pressure F can be decomposed into horizontal component F2 and vertical component F1.

As shown in Figure 3, existing end face be the brush of plane in running, due to the relative sliding of brush bottom surface and commutator 3, brush bottom surface has a lateral stressed f, and this lateral stressed f makes brush run-off the straight in running.

As shown in Figure 4, end face of the present utility model be inclined plane brush in running, brush bottom surface has a lateral stressed f, brush end face is also subject to horizontal component F2 simultaneously, the existence of lateral stressed f and horizontal component F2 can make brush brush body entirety touch the copper sheathing inwall being set in brush brush body outside, thus be subject to the reaction force F3 of copper sheathing to brush brush body, due to the acting in conjunction of lateral stressed f, horizontal component F2 and reaction force F3, the bottom surface of whole brush contacts and not run-off the straight completely with commutator 3.

Although above-mentioned, the utility model is elaborated; but the utility model is not limited thereto; those skilled in the art can modify according to principle of the present utility model; therefore, all various amendments carried out according to principle of the present utility model all should be understood to fall into protection range of the present utility model.

Claims (4)

1. a brush, comprising: brush body and wire, is characterized in that, the end face of described brush body is the inclined plane for producing horizontal component.

2. brush as claimed in claim 1, is characterized in that, described wire is imbedded described brush body inside and stretched out from brush body end face.

3. brush as claimed in claim 2, it is characterized in that, the described wire stretched out from brush body end face is arranged with for executing stressed spring to described end face.

4. brush as claimed in claim 3, it is characterized in that, described spring is perpendicular to described end face.