CN204858914U - Motor - Google Patents
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- Publication number
- CN204858914U CN204858914U CN201520522945.XU CN201520522945U CN204858914U CN 204858914 U CN204858914 U CN 204858914U CN 201520522945 U CN201520522945 U CN 201520522945U CN 204858914 U CN204858914 U CN 204858914U
- Authority
- CN
- China
- Prior art keywords
- bearing
- motor
- rotor
- cushion
- installation cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000009434 installation Methods 0.000 claims abstract description 35
- 239000002184 metal Substances 0.000 claims description 4
- 239000003292 glue Substances 0.000 abstract description 13
- 208000010138 Diastema Diseases 0.000 abstract description 8
- 210000000475 diastema Anatomy 0.000 abstract description 8
- 230000008595 infiltration Effects 0.000 abstract 1
- 238000001764 infiltration Methods 0.000 abstract 1
- 230000008023 solidification Effects 0.000 abstract 1
- 238000007711 solidification Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 14
- 230000007812 deficiency Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
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- Motor Or Generator Frames (AREA)
Abstract
The utility model relates to a motor field, a motor, include the installation cavity of putting into the cushion end cover for the cushion is pushed down to a bearing terminal surface, installs the bearing in the installation cavity of end cover, in inserting bearing inner race with the motor rotor for the shaft shoulder on the motor rotor offsets with the bearing, at the crossing department infiltration glue of bearing inner race and end cover, equipment motor when glue does not solidify, place motor and wait for glue complete solidification. The end cover is equipped with the installation cavity among the motor, and the bearing is installed in the installation cavity, is equipped with the cushion between terminal surface of bearing and the end cover, is equipped with the cementing layer that is used for fixing bearing on the bearing between the lateral wall of bearing inner race and installation cavity. Use glue fixed with bearing and end cover, the cushion is offset the elasticity of bearing for the diastema of motor rotor when rotating reduces, can improve motor efficiency, reduces the noise in the motor internal work simultaneously.
Description
Technical field
The utility model relates to machine field, particularly a kind of installation method of bearing for electric machine and the motor of use the method installation.
Background technology
The technology of existing rigid bearing is, in the position that rotor is connected with end cap, between bearing and end cap, adopts the assembly method of secure fit between bearing inner race and rotor.As shown in Figure 1, bearing outer ring is at the fixing means of axial direction, and general use waveform cushion rigid bearing outer ring, the shaft shoulder rigid bearing inner ring of another side rotor, prevents bearing from moving axially.
As shown in Figure 2, this assembly method has very large deficiency, and rotor and cushion apply pressure simultaneously, makes bearing inner race and bearing outer ring extrude ball simultaneously, and the scroll space of ball in bearing can be made to reduce.Along with the rotating speed of rotor increases, rotor and cushion are to the pressure increase of ball, and the friction of ball and bearing case increases, thus motor usefulness is reduced, and operating noise increases.
In addition, the mechanical structure that in prior art, also useful screw, screw thread or locking groove etc. change end cap or bearing makes it fix.But, these class methods produce time, mechanical tolerance etc. can make rotor axial direction have diastema or too close-fitting so that frictional force excessive, if there is diastema, then motor internal have vibration thus have noise problem.
Utility model content
For solving the problem, the utility model provides a kind of motor bearings installation method and a kind of motor, can reduce and even eliminate rotor diastema in the axial direction thereof, thus motor usefulness is increased, and reduces the noise in motor internal work simultaneously.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of motor, it comprises body, end cap, motor stator and rotor, described rotor is connected by bearing with end cap, the bearing outer ring that described bearing is provided with the bearing inner race for being connected with motor stator and is connected with end cap, described end cap is provided with installation cavity, described bearing is arranged in installation cavity, and one of described bearing is provided with cushion between end face and end cap, is provided with the cementing layer for rigid bearing between described bearing upper bearing (metal) outer ring and the sidewall of described installation cavity.
Further, interference fit between described bearing outer ring and end cap.
Further, interference fit between described bearing inner race and rotor.
Further, the contact-making surface of described bearing inner race and rotor is provided with anti-slip tank.
Further, described cushion is Undee shrapnel.
The utility model beneficial effect:
A kind of motor, adopt the described a kind of motor bearings installation method proposed in the utility model, it comprises body, end cap, motor stator and rotor, described rotor is connected by bearing with end cap, the bearing outer ring that described bearing is provided with the bearing inner race for being connected with motor stator and is connected with end cap, described end cap is provided with installation cavity, described bearing is arranged in installation cavity, one of described bearing is provided with cushion between end face and end cap, is provided with the cementing layer for rigid bearing between described bearing upper bearing (metal) outer ring and the sidewall of described installation cavity.In this motor, offset cushion to the elastic force of bearing by cementing layer, the diastema of rotor when rotating being reduced, the usefulness of motor can be improved, reduce the noise in motor internal work simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of the relative end cap of prior art middle (center) bearing and rotor.
Fig. 2 is that prior art middle (center) bearing is relative to end cap and the stressed schematic diagram of rotor.
Fig. 3 is the relative end cap of bearing of a kind of motor in the utility model and the structural representation of rotor.
Reference numeral comprises:
1-end cap 2-bearing outer ring 3-bearing inner race
4-rotor 5-cushion 6-bearing ball
7-cementing layer
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.Once illustrate and be specially adapted to non-carbon brush motor, but be not restricted to in non-carbon brush motor field.
The utility model provides a kind of motor bearings installation method, and it is low that the installation method that the utility model proposes solves motor usefulness in prior art, the problem that noise is large, existing motor deficiency reference diagram 1 and Fig. 2.
Fig. 1 is the structural representation of the relative end cap 1 of prior art middle (center) bearing and rotor 4, in the position that rotor 4 is connected with end cap 1, between bearing and end cap 1, adopts the assembly method of secure fit between bearing inner race 3 and rotor.Bearing outer ring 2 is at the fixing means of axial direction, and general use waveform cushion 5 rigid bearing outer ring 2, the shaft shoulder rigid bearing inner ring 3 of another side rotor, prevents bearing from moving axially.
With reference to figure 2, Fig. 2 is that prior art middle (center) bearing is relative to end cap 1 and the stressed schematic diagram of rotor 4, in figure, F is the thrust that rotor 4 pairs of bearings produce, f is the elastic force that cushion 5 pairs of bearings produce, this assembly method has very large deficiency, rotor 4 and cushion 5 apply pressure simultaneously, make bearing inner race 3 and bearing outer ring 2 extrude bearing ball 6 simultaneously, and then the scroll space of bearing inner bearing ball 6 is reduced.Along with the rotating speed of rotor 4 increases, the pressure increase of rotor 4 and cushion 5 pairs of bearing balls 6, bearing ball 6 increases with the friction of bearing case, thus motor usefulness is reduced, and operating noise increases.
In the present embodiment, propose a kind of motor bearings installation method, comprise the following steps:
Step 1: installation cavity cushion 5 being put into end cap 1, is installed in the installation cavity of end cap 1 by bearing, make bearing one end face push down cushion 5;
Step 2: inserted in bearing inner race 3 by rotor 4, makes the shaft shoulder on rotor 4 and bearing offset;
Step 3: infiltrate glue, the assembling motor when glue does not solidify in the intersection of bearing outer ring 2 and end cap 1, particularly uses sharp object to make glue infiltrate the intersection of bearing outer ring 2 and end cap 1.
Step 4: place motor and wait for that glue solidifies completely.
Concrete, electric motor end cap 1 is provided with a circular installation cavity, and the size and shape of installation cavity is with bearing to mating, and like this when installation cavity put into by bearing, bearing can not protrude from installation cavity.In installation cavity, put into cushion 5, cushion 5 should be placed in installation cavity bottom faces.Again bearing is put into installation cavity, an end face of bearing and cushion 5 offset, and the face of another end face and bearing place end cap 1 keeps at grade.Rotor 4 is inserted in bearing inner race 3, the shaft shoulder on rotor 4 and bearing are offseted, rotor 4 and bearing inner race 3 secure fit.Infiltrate 609 medium viscosity glue in the intersection of bearing outer ring 2 and end cap 1, particularly use sharp object, and use 609 medium viscosity glue to infiltrate the intersection of bearing outer ring 2 and end cap 1.The assembling motor when glue does not solidify, Main Function is played in the location of the bearing now on cushion 5 pairs of rotor 4 axial directions, and now rotor 4 diastema is in its axial direction minimum.After completing the assembling of whole motor, place motor and wait for that glue solidifies completely, after the glue solidifies, forming cementing layer 7, making between bearing and end cap 1 fixing.With reference to figure 3, when electric motor starting, bearing ball 6 is with bearing inner wall friction and denude, on rotor 4 axial direction, because the power of cushion 5 pairs of bearing extruding is offset by the bed knife of cementing layer 7 pairs of bearings, space residing for bearing inner bearing ball 6 is no longer reduced, therefore the frictional force between bearing ball 6 and bearing inner wall reduces gradually, thus increase the efficiency of motor, and owing to using the assembling of cushion 5 when assembling motor, make rotor 4 in its axial direction without diastema, the motor that in contrast prior art, the method for direct rigid bearing is assembled into, the generation of noise can be reduced greatly.
As shown in Figure 3, propose a kind of motor in the present embodiment, it adopts motor bearings installation method in the present embodiment to be assembled into.This motor it comprise body, end cap 1, motor stator and rotor 4, described rotor 4 is connected by bearing with end cap 1, the bearing outer ring 2 that described bearing is provided with the bearing inner race 3 for being connected with motor stator and is connected with end cap 1, described end cap 1 is provided with installation cavity, described bearing is arranged in installation cavity, be provided with cushion 5 between an end face of described bearing and end cap 1, between described bearing upper bearing (metal) outer ring 2 and the sidewall of described installation cavity, be provided with the cementing layer 7 for rigid bearing.In this motor, offset the elastic force of cushion 5 pairs of bearings by cementing layer 7, the diastema of rotor 4 when rotating being reduced, the usefulness of motor can be improved, reduce the noise in motor internal work simultaneously.
Preferably, interference fit between the present embodiment middle (center) bearing outer ring 2 and end cap 1, interference fit between bearing inner race 3 and rotor 4, makes the installation that it can be firm.Bearing inner race 3 is provided with anti-slip tank with the contact-making surface of rotor 4, increase further between bearing inner race 3 and rotor 4 frictional force.Described cushion 5 is Undee shrapnel, but the present embodiment does not limit the kind of cushion 5.
Above content is only preferred embodiment of the present utility model; for those of ordinary skill in the art; according to thought of the present utility model; many changes can be made in specific embodiments and applications; as long as these are changed to depart from design of the present utility model, all belong to protection range of the present utility model.
Claims (5)
1. a motor, it comprises body, end cap (1), motor stator and rotor (4), described rotor (4) is connected by bearing with end cap (1), the bearing outer ring (2) that described bearing is provided with the bearing inner race (3) for being connected with motor stator and is connected with end cap (1), it is characterized in that: described end cap (1) is provided with installation cavity, described bearing is arranged in installation cavity, cushion (5) is provided with between an end face of described bearing and end cap (1), the cementing layer (7) for rigid bearing is provided with between described bearing upper bearing (metal) outer ring (2) and the sidewall of described installation cavity.
2. a kind of motor according to claim 1, is characterized in that: interference fit between described bearing outer ring (2) and end cap (1).
3. a kind of motor according to claim 1, is characterized in that: interference fit between described bearing inner race (3) and rotor (4).
4. a kind of motor according to claim 1, is characterized in that: described bearing inner race (3) is provided with anti-slip tank with the contact-making surface of rotor (4).
5. a kind of motor according to claim 1, is characterized in that: described cushion (5) is Undee shrapnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520522945.XU CN204858914U (en) | 2015-07-17 | 2015-07-17 | Motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520522945.XU CN204858914U (en) | 2015-07-17 | 2015-07-17 | Motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204858914U true CN204858914U (en) | 2015-12-09 |
Family
ID=54749426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520522945.XU Expired - Fee Related CN204858914U (en) | 2015-07-17 | 2015-07-17 | Motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204858914U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106712413A (en) * | 2015-07-17 | 2017-05-24 | 胡永健 | Motor bearing mounting method and motor |
-
2015
- 2015-07-17 CN CN201520522945.XU patent/CN204858914U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106712413A (en) * | 2015-07-17 | 2017-05-24 | 胡永健 | Motor bearing mounting method and motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151209 |