CN208094348U - A kind of motor insulation bearing component - Google Patents

Abstract

The utility model is related in a kind of motor field, especially a kind of motor insulation bearing component.The motor insulation bearing component is being linked to the motor shaft core that X in an axial direction extends.Motor insulation bearing component includes bracket, insulation bearing, first end cover and second end cover.The utility model prevents shaft current to be connected via bearing body and forms earth-return circuit by insulation outer ring plate, the first insulation sides ring plate with the second insulation sides ring plate.Therefore, under the situation that shaft current does not turn on, bearing body not will produce electric spark.Whereby, it avoids and generates electrical pitting in bearing body or generate metallic, and then inhibit the increase of bearing body internal friction and bearing body abrasion, thus extend the service life of bearing body.

Description

A kind of motor insulation bearing component

Technical field

The utility model is related in a kind of motor field, especially a kind of motor insulation bearing component.

Background technology

Motor is a kind of device converting electric energy to mechanical energy using magnetic effect of electric current.The electricity earliest from 18th century Since machine is by invention, people constantly improve the construction of motor, so as to meeting the needs of different.The structure of motor is with constantly Improvement and it is gradually complicated, from only having simple stator, rotor and commutator earliest, evolve into the electric machine part of complexity today.Its In, include bearing in electric machine part, bearing rotates smoothness other than the weight for needing to carry, with greater need for rotor is kept.

Invention content

The utility model provides one kind and flowing to bracket via bearing body from motor shaft core in shaft current and formed and be grounded back Lu Shi, bearing body can because electric spark generation and accelerated wear test, and then reduce bearing body service life the problem of.

The technical solution that the utility model is taken to achieve the above object is：

A kind of motor insulation bearing component, to be linked to along an axially extending motor shaft core, which includes bracket, Bracket end face along this it is axially extending be equipped with bearing holding channel, and the bearing holding channel has vias inner walls；Insulation bearing The bearing holding channel is placed in be supported by the bracket, insulation bearing and include bearing body, bearing body has bearing External annulus, and channel is set along the axially extending shaft core that is equipped with, which is arranged channel to house the motor shaft core；Insulation Outer ring plate is located between the outer race wall and the vias inner walls, so as to separating the outer race wall and the vias inner walls.

As a further improvement, the insulation bearing further includes the first insulation sides ring plate, which is adjacent to The bracket end face and be set to the bearing body.

As a further improvement, the first insulation sides ring plate fits in the bearing body.

As a further improvement, the insulation bearing further includes the second insulation sides ring plate, which is away from The bracket end face and be set to the bearing body.

As a further improvement, the second insulation sides ring plate fits in the bearing body.

As a further improvement, further including first end cover, which is covered on the bearing adjacent to the bracket end face Holding channel.

As a further improvement, further including second end cover, which is covered on the bearing far from the bracket end face Holding channel.

As a further improvement, the bearing body ball bearing.

As a further improvement, the insulation outer ring plate is arranged and is fixed in the outer race wall.

As a further improvement, the insulation outer ring plate fits in the vias inner walls.

The utility model by insulation outer ring plate, the first insulation sides ring plate and the second insulation sides ring plate come prevent shaft current via Bearing body is connected and forms earth-return circuit.Therefore, under the situation that shaft current does not turn on, bearing body not will produce electrical fire Flower.Whereby, it avoids and generates electrical pitting in bearing body or generate metallic, and then bearing body internal friction is inhibited to increase It is subject to and bearing body is worn, thus extends the service life of bearing body.

Description of the drawings

Fig. 1 is the decomposition diagram of the utility model；

Fig. 2 is the stereoscopic schematic diagram of the utility model；Fig. 3 is C-C sectional views in Fig. 2；

Fig. 4 is the partial enlarged view of region D in Fig. 3.

Specific implementation mode

A detailed description is done to specific embodiment of the present utility model below in conjunction with the accompanying drawings.

Such as Fig. 1, shown in 2, a kind of motor insulation bearing component, the motor insulation bearing component 1 is being linked to along an axis The motor shaft core 2 extended to X.Motor insulation bearing component 1 includes bracket 11, insulation bearing 12, first end cover 13 and second end Lid 14.

Bracket 11 offers bracket end face S1, and X extends to the bearing holding channel T1 of rack end face S2, and axis in an axial direction Holding holding channel T1 has vias inner walls 111.Insulation bearing 12 includes that bearing body 121, one insulate outer ring plate 122, first absolutely Edge side ring piece 123 and the second insulation sides ring plate 124.13 adjacent brackets end face S1 of first end cover and be covered on bearing holding channel T1, second end cover 14 are adjacent to rack end face S2 and are covered on bearing holding channel T1.

Such as Fig. 3, shown in 4, insulation bearing 12 is placed in bearing holding channel T1 to be supported by bracket 11.Bearing body 121 have an outer race wall 1211, and offer a shaft core setting channel T2 that X extends in an axial direction.

Wherein, shaft core setting channel T2 is to accommodating motor shaft core 2.In the present embodiment, bearing body 121 is a ball Bearing.In other embodiments, bearing body 121 can be needle bearing, it is self-aligning ball bearing, angular contact bearing, thrust bearing, straight Spool holds, impulse bearing or liquid bearing, and but not limited to this.

Insulation outer ring plate 122 is arranged and is fixed in outer race wall 1211, so as to making insulation outer ring plate 122 be surrounded on bearing Between external annulus 1211 and vias inner walls 111, so as to separating simultaneously insulation bearing external annulus 1211 and vias inner walls 111.At other In embodiment, insulation outer ring plate 122 can make insulation outer ring plate 122 be surrounded on bearing in a manner of fitting in vias inner walls 111 Between external annulus 1211 and vias inner walls 111.

It illustrates herein, insulation outer ring plate 122 makes bearing body in addition to that can separate bearing body 121 and bracket 11 Between 121 and bracket 11 other than mutual insulating, bearing body 121 and support can also be buffered in 121 load capacity of bearing body Stress between frame 11.In the present embodiment, insulation outer ring plate 122 can be made of isolation material completely, or can be in iron Material surface plates insulating materials and is constituted, and but not limited to this.First insulation sides ring plate 123 is adjacent to bracket end face S1 and pastes Together in bearing body 121.When first insulation sides ring plate 123 is located at bearing holding channel T1 in addition to that can buffer the lid of first end cover 13 With the stress between bearing body 121, it more so that bearing body 121 is electrically isolated from first end cover 13, reach whereby more Good insulation effect.In the present embodiment, the first insulation sides ring plate 123 is rubber side ring gasket, silica gel side ring gasket or plastic cement Side ring gasket, but not limited to this.

Second insulation sides ring plate 124 is adjacent to rack end face S2 and fits in bearing body 121.Second insulation sides ring plate 124 in addition to can buffer second end cover 14 cover be located at bearing holding channel T1 when and bearing body 121 between stress, more can be into One step bearing body 121 is made to electrically isolate from second end cover 14, reaches more preferably insulation effect whereby.In the present embodiment, second Insulation sides ring plate 124 is rubber side ring gasket, silica gel side ring gasket or plastic cement side ring gasket, and but not limited to this.

First end cover 13 includes a first end cover ontology 131 and a first end cover gasket 132.First end cover ontology 131 covers Set on the side of bearing holding channel T1 adjacent brackets end face S1.It is adjacent that first end cover gasket 132 is set to first end cover ontology 131 It is bordering at shaft core setting channel T2.First end cover gasket 132 can buffer the lid of first end cover ontology 131 and be located at bearing holding channel Stress when T1 between bearing body 121.First end cover 13 to prevent dust from be adjacent to the side of bracket end face S1 into Enter bearing holding channel T1 and prevents the lubricating oil in bearing holding channel T1 from being overflowed from the side for being adjacent to bracket end face S1.

Second end cover 14 includes second end cover ontology 141 and second end cover gasket 142.Second end cover ontology 141 is covered on Bearing holding channel T1 is adjacent to the side of rack end face S2.It is adjacent that second end cover gasket 142 is set to second end cover ontology 141 It is bordering at shaft core setting channel T2.Second end cover gasket 142 can buffer the lid of second end cover ontology 141 and be located at bearing holding channel Stress when T1 between bearing body 121.To prevent dust, oneself is adjacent to the side of rack end face S2 to second end cover 14 Into bearing holding channel T1 and prevent lubricating oil in bearing holding channel T1 from the side for being adjacent to rack end face S2 It overflows.

When rotor in the running, motor shaft core 2 can shaft core setting channel T2 in and motor insulation bearing component 1 produce It is raw to relatively rotate.When rotor because when electrification causes shaft current, although electric current can break through lubricating oil and flow into bearing body 121, But still it can not flow to bracket 11 via bearing body 121 by 122 barriers of insulation outer ring plate.Whereby, shaft current is prevented It is connected via bearing body 121 and forms earth-return circuit.

In conclusion motor insulation bearing component provided by the utility model has insulation outer ring plate, insulate outer ring plate It is located between outer race wall and vias inner walls.Whereby, when rotor generates the shaft current for breaking through lubricating oil, shaft current Bracket can not be flow to via bearing body and form earth-return circuit from motor shaft core.In addition, being attached at the of bearing body both sides One insulation sides ring plate is located at bearing holding channel in addition to that can buffer first end cover with the second insulation sides ring plate with second end cover lid Stress outside, more further bearing body can be made to electrically isolate from first end cover and second end cover.

The utility model motor insulation bearing component prevents bearing of the shaft current from bearing body by insulation outer ring plate External annulus flow to the vias inner walls of bracket, so that shaft current can not be formed via bearing body connects electrical circuit.Therefore, will not It is formed by electric spark in bearing body generation shaft current and formation electrical pitting in bearing body is made to be melted in bearing body The metallic gone out.Whereby, the abrasion of frictional force and bearing body when avoiding increasing rotation in bearing body.In addition, also keeping away Exempt from the metallic that electric spark is dissolved and entered lubricating oil and the lubrication property that influences lubricating oil, thus increases bearing body Service life.

Claims (10)

1. a kind of motor insulation bearing component, to be linked to along an axially extending motor shaft core, it is characterised in that：The component Including bracket, bracket end face along this it is axially extending be equipped with bearing holding channel, and the bearing holding channel has vias inner walls； Insulation bearing is placed in the bearing holding channel to be supported by the bracket, insulation bearing and include bearing body, bearing body Channel is set with outer race wall, and along the axially extending shaft core that is equipped with, which is arranged channel to house the motor Shaft core；Insulation outer ring plate is located between the outer race wall and the vias inner walls, logical with this so as to separating the outer race wall Road inner wall.

2. a kind of motor insulation bearing component according to claim 1, it is characterised in that：The insulation bearing further includes first Insulation sides ring plate, the first insulation sides ring plate are adjacent to the bracket end face and are set to the bearing body.

3. a kind of motor insulation bearing component according to claim 2, it is characterised in that：The first insulation sides ring plate is bonded In the bearing body.

4. a kind of motor insulation bearing component according to claim 2, it is characterised in that：The insulation bearing further includes second Insulation sides ring plate, the second insulation sides ring plate are away from the bracket end face and are set to the bearing body.

5. a kind of motor insulation bearing component according to claim 4, it is characterised in that：The second insulation sides ring plate is bonded In the bearing body.

6. a kind of motor insulation bearing component according to claim 1, it is characterised in that：First end cover is further included, this One end cap is covered on the bearing holding channel adjacent to the bracket end face.

7. a kind of motor insulation bearing component according to claim 6, it is characterised in that：Second end cover is further included, this Two end caps are covered on the bearing holding channel far from the bracket end face.

8. a kind of motor insulation bearing component according to claim 1, it is characterised in that：The bearing body ball bearing.

9. a kind of motor insulation bearing component according to claim 1, it is characterised in that：The insulation outer ring plate is arranged and consolidates It is connected to the outer race wall.

10. a kind of motor insulation bearing component according to claim 1, it is characterised in that：The insulation outer ring plate fits in The vias inner walls.