CN206559169U

CN206559169U - Brush box assembly

Info

Publication number: CN206559169U
Application number: CN201720254054.XU
Authority: CN
Inventors: 朱振华; 潘鸿雷; 张忠武; 陈辉
Original assignee: RUIAN RUIXIN ELECTRIC APPLIANCES CO Ltd
Current assignee: RUIAN RUIXIN ELECTRIC APPLIANCES CO Ltd
Priority date: 2017-03-16
Filing date: 2017-03-16
Publication date: 2017-10-13
Anticipated expiration: 2027-03-16

Abstract

The utility model discloses a kind of brush box assembly, including brush box, carbon brush and spring, carbon brush can be slidably mounted in brush box inner chamber, spring is arranged between carbon brush and brush box inwall, and split ring, the side elastic strip of split ring are provided with brush box inner chamber, the two ends of elastic strip are fixed in the annular wall of split ring, elastic strip bends curved under the elasticity extruding of split ring, spring base is welded with above the centre position of the arc, spring one end is fixed on spring base.So just realize the technique effect that carbon brush can be made further to keep driving pressure.

Description

Brush box assembly

Technical field

The utility model is related to a kind of part installed for carbon brush on motor, and in particular to a kind of brush box assembly.

Background technology

Brush box be place carbon brush box body, install carbon brush it is latter as by spring and make its under stress with sliding surface protect Contact is held, in some cases, the length of brush box inner chamber is long, carbon brush is under Spring driving with being caused after sliding surface contact wear Insufficient pressure, makes carbon brush cisco unity malfunction.

The content of the invention

To solve the above problems, the purpose of this utility model is that providing one kind can make carbon brush further keep driving pressure Brush box assembly.

To achieve the above object, the utility model provides following technical scheme：A kind of brush box assembly, including brush box, carbon Brush and spring, described carbon brush can be slidably mounted in described brush box inner chamber, described spring be arranged on the carbon brush and Between the brush box inwall, split ring, the side elastic strip of described split ring, the bullet are provided with described brush box inner chamber Property bar two ends be fixed in the annular wall of the split ring, the elastic strip the split ring elasticity extruding under bending is in Arc, is welded with spring base above the centre position of the arc, and described spring one end is fixed on spring base.

Described spring base includes the base of toroidal, and projection has in cylinder, the spring on described base Axis hole is socketed on the cylinder.

The telescopic chute for split ring elastic telescopic activity is offered on described brush box.

By using having the beneficial effect that above-mentioned technical proposal is reached：During installation, carbon brush driving spring squeezes elastic strip Linear state is pressed, now split ring is pressurized and opened along the telescopic chute of brush box.Contacted in carbon brush under Spring driving with sliding surface When build-up of pressure is not enough after abrasion, the compression stress driving elastic strip bending of split ring is curved and supplies spring pressure, makes Carbon brush persistently persistently keeps contact to sliding surface, so just realizes the technology that carbon brush can be made further to keep driving pressure Effect.

The utility model is further described with reference to the accompanying drawings and detailed description.

Brief description of the drawings

Fig. 1 is the structural representation of the utility model embodiment；

Fig. 2 is the cooperation stereogram of split ring, elastic strip and spring base.

Embodiment

As shown in Figure 1 and Figure 2, the utility model discloses a kind of brush box assembly, including brush box 1, carbon brush 2 and spring 3, Carbon brush 2 be can be slidably mounted in the inner chamber of brush box 1, and spring 3 is arranged between carbon brush 2 and the inwall of brush box 1, be set in the inner chamber of brush box 1 There is split ring 4, the side elastic strip 5 of split ring 4, the two ends of elastic strip 5 are fixed in the annular wall of split ring 4, and elastic strip 5 exists The lower bending of elasticity extruding of split ring 4 is curved, spring base 6 is welded with above the centre position of the arc, the one end of spring 3 is consolidated It is scheduled on spring base 6.

Spring base 6 includes the base 61 of toroidal, and projection has cylinder 62, the central axis hole socket of spring 3 on base 61 On the cylinder 62.What can so be connected with spring 3 is relatively reliable, it is ensured that the flexible reliability of spring 3.

The telescopic chute 7 for the activity of the elastic telescopic of split ring 4 is offered on brush box 1.So that the flexible of split ring 4 more fills Point, ensure the reliability of the driving spring 3 of elastic strip 5.

In embodiment, during installation, elastic strip 5 is extruded linear state by the driving spring 3 of carbon brush 2, and now split ring 4 is pressurized Opened along the telescopic chute 7 of brush box 1.Carbon brush 2 under the driving of spring 3 with build-up of pressure after sliding surface contact wear it is not enough when Wait, the compression stress driving elastic strip 5 of split ring 4 bends curved and supplies the pressure of spring 3, carbon brush 2 is persistently held to sliding surface Contact is held in continuation of insurance, so just realizes the technique effect that carbon brush 2 can be made further to keep driving pressure.

Claims

1. a kind of brush box assembly, including brush box, carbon brush and spring, described carbon brush can be slidably mounted at described brush box inner chamber In, described spring is arranged between the carbon brush and the brush box inwall, it is characterised in that：Set in described brush box inner chamber There is a split ring, the side elastic strip of described split ring, the two ends of the elastic strip are fixed in the annular wall of the split ring, The elastic strip bends curved under the elasticity extruding of the split ring, and spring is welded with above the centre position of the arc Seat, described spring one end is fixed on spring base.

2. brush box assembly according to claim 1, it is characterised in that：Described spring base includes the base of toroidal, Projection has cylinder on described base, and the central axis hole of the spring is socketed on the cylinder.

3. brush box assembly according to claim 1, it is characterised in that：Offered on described brush box for the split ring bullet The telescopic chute of property telescopic movable.