CN205986433U - Bearing fixing structure of motor rear end cap brush yoke - Google Patents

Abstract

The utility model discloses a bearing fixing structure of motor rear end cap brush yoke, including rear end cap brush holder plate and bearing, rear end cap brush holder plate center department is formed with and is used for placing the hole is placed to the bearing of bearing, the bearing is placed the hole shape and is become the oriented radial inboard ring baffle that extends, the bearing place in the bearing is placed downtheholely, just the bearing with be equipped with the wave washer between the ring baffle, the outside that rear end cap brush holder plate placed the hole for the bearing is formed with a plurality of flutings that run through rear end cap brush holder plate along the pivot axial, rear end cap brush holder plate collocation has the bearing apron, the bearing cap board is formed with the through -hole that supplies the pivot to pass through, the outer fringe of bearing apron is formed with a plurality of buckle feet, and the axis of a plurality of buckle feet is and uses the pivot axis as the annular interval setting at center, the buckle foot is followed the parallel lines setting of pivot axis, the cooperation of buckle foot is in in the fluting and with rear end cap brush holder plate buckle is fixed.

Description

The bearing fixing structure of back end cover for motor brush holder

Technical field

This utility model is related to a kind of bearing fixing structure of back end cover for motor brush holder.

Background technology

In prior art, carry out back end cover for motor brush holder bearing fixing when, typically directly bearing is pressed into motor rear end In the bearing putting hole of the circle of lid brush holder, offseted with bearing outer ring by bearing putting hole inwall and realize the spacing solid of bearing Fixed, realize the close-fitting of bearing, but often occur pad to interfere the situation of bearing upwards so that bearing offsets because of its own resilient.

Content of the invention

The purpose of this utility model is to provide a kind of bearing fixing structure of the back end cover for motor brush holder avoiding bearing skew.

For achieving the above object, this utility model adopts the following technical scheme that：A kind of bearing of back end cover for motor brush holder is solid Fixed structure, including rear end cap brush rack plate and bearing, described rear end cap brush rack plate center is formed with for placing described bearing Bearing putting hole, described bearing putting hole forms the ring baffle that oriented radially inner side extends, and described bearing is positioned over described axle Bear and put in the hole, and be provided with wave washer between described bearing and described ring baffle, described rear end cap brush rack plate is with respect to bearing The outside of putting hole is formed with some flutings axially penetrating through rear end cap brush rack plate along rotating shaft, and described rear end cap brush rack plate is collocated with Bearing cover, described bearing cover is formed with the through hole passing through for rotating shaft, and the outer rim of described bearing cover is formed with some buckles Foot, the axis of some buckle feet is in the annular space setting centered on shaft axis, and described buckle foot is along described shaft axis Parallel lines setting, the cooperation of described buckle foot fixes in described fluting and with described rear end cap brush rack plate buckle.This practicality is new Bearing is covered by type by bearing cover, to avoid bearing to interfere the bearing being easily caused inclined upwards because of wave washer its own resilient Move；Bearing cover of the present utility model is provided with buckle foot, makes the assembling of bearing cover and rear end cap brush rack plate more convenient simple.

Preferably, described bearing cover is provided with two buckle feet, the opposite sides of described bearing cover is equipped with an institute State buckle foot.Above-mentioned setting makes bearing cover more stable with the fixation of rear end cap brush rack plate, and makes the structure of bearing cover more For simple, cost is lower.

Preferably, the raised axis towards described bearing of the buckle of described buckle foot.Above-mentioned setting makes bearing cover Consumptive material is less, and cost is lower.

Preferably, the outer rim of described bearing cover is formed with breach, described bearing cover and the institute being adapted with brush box State rear end cap brush rack plate to fix and make the carbon brush in brush box extend on the upside of described bearing cover.Wherein, breach is used for bearing cap The positioning of plate, to prevent bearing cover from rotating.

Preferably, described bearing cover is ringwise arranged, the interior electrical path length of annular is more than the external diameter of described bearing inner race Length.After i.e. the buckle foot of bearing cover is fixing with rear end cap brush rack plate buckle, bearing cover lid overlays on outside bearing and makes axle Hold inner ring to expose；Above-mentioned setting can reduce the consumptive material of bearing cover of the present utility model, reduces its production cost.

Preferably, the quantity of described brush box is two, described brush box is arranged at the opposite sides of described bearing putting hole, The opposite sides of described bearing cover is equipped with described breach.

Preferably, the curved setting of described breach.

Preferably, the width of described breach is mutually suitable with the width of described brush box.

This utility model has and bearing can be fixed, and can plant the advantage avoiding bearing skew, and utility model itself Structure is simple, consumptive material is less, cost is relatively low, easy to assembly.

Brief description

Fig. 1 is a kind of structural representation of bearing cover of the present utility model and the assembling of rear end cap brush rack plate；

Fig. 2 is a kind of structural representation of bearing cover of the present utility model；

Fig. 3 is another kind of structural representation of bearing cover of the present utility model and the assembling of rear end cap brush rack plate.

Specific embodiment

The utility model will be further described with specific embodiment below in conjunction with the accompanying drawings.

Shown in Fig. 1, Fig. 2, Fig. 3, a kind of bearing fixing structure of back end cover for motor brush holder of the present utility model, including after End cap brush rack plate 1 and bearing 2, rear end cap brush rack plate 1 center is formed with the bearing putting hole 11 for placing bearing 2, bearing Putting hole 11 forms the ring baffle 12 that oriented radially inner side extends, and bearing 2 is positioned in bearing putting hole 11, and bearing 2 with It is provided with wave washer 3, rear end cap brush rack plate 1 is collocated with the bearing cover 4 ringwise arranging between ring baffle 12.

Rear end cap brush rack plate 1 is formed with respect to the outside of bearing putting hole 11 and some axially penetrates through rear end cap brush along rotating shaft The fluting 13 of frame plate, bearing cover 4 is formed with the through hole 41 passing through for rotating shaft, and the outer rim of bearing cover 4 is formed with two buckles Foot 42, two buckle feet 42 are arranged at the opposite sides of bearing cover 4, and buckle foot 42 is along the parallel lines setting of shaft axis, card Button foot 42 is coordinated in fluting 13 and is fixed with rear end cap brush rack plate 1 buckle.

The buckle projection 43 of buckle foot 42 is formed with and is adapted with brush box 5 towards the axis of bearing, the outer rim of bearing cover 4 Arc notch 44, the width of breach 44 is mutually suitable with the width of brush box 5.Brush box 5 quantity on rear end cap brush rack plate 1 is two Individual, brush box 5 is arranged at the opposite sides of bearing putting hole 11, and the opposite sides of bearing cover 4 is equipped with described breach 44.Its In, bearing cover 4 is ringwise arranged, and the interior electrical path length of annular is more than the outer diameter length of bearing inner race.

During use, the breach 44 of bearing cover 4 is aligned with the brush box 5 on rear end cap brush rack plate 1, so that brush box 5 is coordinated In breach 44, subsequently pressing bearing cover 4, makes the buckle foot 42 of bearing cover 4 and rear end cap brush rack plate 1 buckle fix, bearing Cover plate 4 is fixing with rear end cap brush rack plate 1 and so that the carbon brush in brush box is extended on the upside of bearing cover 4, and bearing cover 4 lid covers bearing 2 outer ring is to realize the cooperation of this utility model bearing cover 4 and rear end cap brush rack plate 1.This utility model has can be to bearing It is fixed, the advantage that bearing skew can be avoided, and utility model structure is simple, consumptive material is less, cost is relatively low, assembling side in itself Just.

Claims (8)

1. a kind of bearing fixing structure of back end cover for motor brush holder is it is characterised in that including rear end cap brush rack plate and bearing, described Rear end cap brush rack plate center is formed with the bearing putting hole for placing described bearing, and described bearing putting hole forms oriented footpath The ring baffle extending to inner side, described bearing is positioned over described bearing and places in the hole, and described bearing and described ring baffle Between be provided with wave washer, described rear end cap brush rack plate is formed with respect to the outside of bearing putting hole and some axially penetrates through along rotating shaft The fluting of rear end cap brush rack plate, described rear end cap brush rack plate is collocated with bearing cover, and described bearing cover is formed with and leads to for rotating shaft The through hole crossed, the outer rim of described bearing cover is formed with some buckle feet, and the axis of some buckle feet is in shaft axis being The annular space setting of the heart, described buckle foot is opened along the parallel lines setting of described shaft axis, described buckle foot cooperation described Fix in groove and with described rear end cap brush rack plate buckle.

2. the bearing fixing structure of back end cover for motor brush holder according to claim 1 is it is characterised in that described bearing cover It is provided with two buckle feet, the opposite sides of described bearing cover is equipped with buckle foot described in.

3. the bearing fixing structure of back end cover for motor brush holder according to claim 1 is it is characterised in that described buckle foot The raised axis towards described bearing of buckle.

4. the bearing fixing structure of the back end cover for motor brush holder according to claim 1 or 2 or 3 is it is characterised in that described axle The outer rim holding cover plate is formed with the breach being adapted with brush box, and described bearing cover and described rear end cap brush rack plate are fixed and made brush Carbon brush in box extends on the upside of described bearing cover.

5. the bearing fixing structure of the back end cover for motor brush holder according to claim 1 or 2 or 3 is it is characterised in that described axle Hold cover plate ringwise to arrange, the interior electrical path length of annular is more than the outer diameter length of described bearing inner race.

6. the bearing fixing structure of back end cover for motor brush holder according to claim 4 is it is characterised in that the number of described brush box Measure as two, described brush box is arranged at the opposite sides of described bearing putting hole, the opposite sides of described bearing cover is equipped with Described breach.

7. the bearing fixing structure of back end cover for motor brush holder according to claim 4 is it is characterised in that described breach is in arc Shape is arranged.

8. the bearing fixing structure of back end cover for motor brush holder according to claim 4 is it is characterised in that the width of described breach Degree is mutually suitable with the width of described brush box.