CN219351426U - Motor and bearing mounting structure of rotor thereof - Google Patents
Motor and bearing mounting structure of rotor thereof Download PDFInfo
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- CN219351426U CN219351426U CN202223246206.1U CN202223246206U CN219351426U CN 219351426 U CN219351426 U CN 219351426U CN 202223246206 U CN202223246206 U CN 202223246206U CN 219351426 U CN219351426 U CN 219351426U
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- 238000007906 compression Methods 0.000 claims abstract description 37
- 230000006835 compression Effects 0.000 claims abstract description 28
- 230000002093 peripheral effect Effects 0.000 claims abstract description 10
- 230000000694 effects Effects 0.000 abstract description 13
- 230000008030 elimination Effects 0.000 abstract description 12
- 238000003379 elimination reaction Methods 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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Abstract
The utility model relates to the technical field of motors and discloses a motor and a bearing mounting structure of a rotor of the motor, which comprises an end cover, wherein the inner side of the end cover is provided with the rotor, and the outer peripheral surface of the rotor is connected with the inner peripheral surface of the end cover through a bearing; the wave-shaped gasket is arranged between the end face of the bearing and the inner end face of the end cover; the limiting part is arranged between the end cover and the bearing; one end butt spacing portion of wave form gasket, the minimum distance between spacing portion and bearing or the end cover is less than the limit compression stroke of wave form gasket and carries out the in-process that compresses at wave form gasket, and when will reaching the limit compression stroke of wave form gasket, spacing portion can the butt on bearing or end cover, stops wave form gasket's compression process, prevents that wave form gasket from taking place to damage under the extreme operating mode, has guaranteed wave form gasket's life-span, has guaranteed motor rotor's noise elimination effect.
Description
Technical Field
The utility model relates to the technical field of motors, in particular to a bearing mounting structure of a motor and a rotor of the motor.
Background
The rotor of the motor is generally fixed in the end cover and rotates in the end cover; in order to reduce vibration noise between a driving motor and an end cover, a waveform gasket is generally arranged on a motor bearing, two ends of the waveform gasket are respectively abutted against the end face of the bearing and the end face of the end cover, a pretightening force is provided for a motor rotor, and an axial gap between the motor rotor and the motor end cover is eliminated. However, under external excitation, the motor rotor and the waveform gasket form harmonic response to generate axial movement, and the compression amount of the waveform gasket under extreme working conditions may exceed the allowable value of the waveform gasket, so that the waveform gasket is damaged, and noise elimination of the motor rotor is affected.
Disclosure of Invention
The purpose of the utility model is that: the utility model provides a motor and bearing mounting structure of rotor thereof, at the in-process that wave form gasket compressed, when arriving the limit compression stroke of wave form gasket soon, spacing portion can the butt on bearing or end cover, stops wave form gasket's compression process, prevents that wave form gasket from taking place to damage under the extreme operating mode, has guaranteed wave form gasket's life-span, has guaranteed motor rotor's noise elimination effect.
In order to achieve the above object, the present utility model provides a bearing mounting structure of a motor rotor, comprising:
the inner side of the end cover is provided with a rotor, and the outer peripheral surface of the rotor is connected with the inner peripheral surface of the end cover through a bearing;
the wave-shaped gasket is arranged between the end face of the bearing and the inner side end face of the end cover;
the limiting part is arranged between the end cover and the bearing;
one end of the waveform gasket is abutted against the limiting part, and the minimum distance between the limiting part and the bearing or the end cover is smaller than the limit compression stroke of the waveform gasket.
Compared with the prior art, the bearing mounting structure of the motor rotor has the beneficial effects that: the wave-shaped gasket is arranged between the end cover and the bearing, and the limiting part is also arranged between the end cover and the bearing; one end of the limiting part can be abutted against the end cover or the bearing, the other end of the limiting part is abutted against one end of the waveform gasket, the other end of the waveform gasket is abutted against the bearing or the end cover, and at the moment, the minimum distance between the limiting part and the bearing or the end cover is smaller than the limit compression stroke of the waveform gasket; during operation, in the process that the waveform gasket compresses, when the limit compression stroke of waveform gasket is about to be reached, the spacing portion can butt on bearing or end cover, stops the compression process of waveform gasket, prevents that the waveform gasket from damaging under the extreme operating mode, has guaranteed the life-span of waveform gasket, has guaranteed motor rotor's noise elimination effect.
According to the bearing mounting structure of the motor rotor, the limiting part comprises the fixed end and the limiting end, the waveform gasket is abutted to the fixed end, and the limiting end is used for being abutted to the end cover or the end face of the bearing when the waveform gasket is compressed at limit.
According to the bearing mounting structure of the motor rotor, one end of the waveform gasket is connected with the fixed end, the other end of the waveform gasket is connected with the end cover, and one end of the limiting part, which faces away from the waveform gasket, is connected with the end face of the bearing.
According to the bearing mounting structure of the motor rotor, one end of the waveform gasket is connected with the fixed end, the other end of the waveform gasket is connected with the bearing, and one end of the limiting part, which faces away from the waveform gasket, is connected with the end face of the end cover.
According to the bearing mounting structure of the motor rotor, the limiting part comprises the distance ring.
According to the bearing mounting structure of the motor rotor, the end face of the end cover faces the direction of the bearing, and the waveform gasket is connected with the end face of the end cover through the shaft shoulder.
According to the bearing mounting structure of the motor rotor, a plurality of wave-shaped gaskets are arranged between the end cover and the bearing.
According to the bearing mounting structure of the motor rotor, the waveform gaskets are concentrically sleeved, and the waveform gaskets are abutted against the limiting parts.
According to the bearing mounting structure of the motor rotor, the number of the limiting parts is the same as that of the waveform gaskets.
The utility model also provides an electric machine comprising a rotor secured to an end cap by a bearing mounting structure as described in any of the above embodiments.
Compared with the prior art, the motor has the beneficial effects that: the inner side of the end cover is provided with a rotor, and the outer peripheral surface of the rotor is connected with the inner peripheral surface of the end cover through a bearing; the wave-shaped gasket is arranged between the end cover and the bearing, and the limiting part is also arranged between the end cover and the bearing; one end of the limiting part can be abutted against the end cover or the bearing, the other end of the limiting part is abutted against one end of the waveform gasket, the other end of the waveform gasket is abutted against the bearing or the end cover, and at the moment, the minimum distance between the limiting part and the bearing or the end cover is smaller than the limit compression stroke of the waveform gasket; during operation, in the process that the waveform gasket compresses, when the limit compression stroke of waveform gasket is about to be reached, the spacing portion can butt on bearing or end cover, stops the compression process of waveform gasket, prevents that the waveform gasket from damaging under the extreme operating mode, has guaranteed the life-span of waveform gasket, has guaranteed motor rotor's noise elimination effect.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
Fig. 1 is a schematic view of a bearing mounting structure of a motor rotor according to an embodiment of the present utility model;
fig. 2 is a schematic view of a bearing mounting structure of a motor rotor according to another embodiment of the present utility model;
in the figure, 1, an end cover; 2. a rotor; 3. a bearing; 4. a wave washer; 5. a limit part; 51. a fixed end; 52. and a limiting end.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
As shown in fig. 1, a bearing mounting structure of a motor rotor according to a preferred embodiment of the present utility model includes an end cover 1, a rotor 2 provided inside the end cover 1, the rotor 2 rotating inside the end cover 1, and an outer circumferential surface of the rotor 2 and an inner circumferential surface of the end cover 1 being connected by a bearing 3.
The bearing 3 mounting structure of the motor rotor 2 according to the preferred embodiment of the utility model further comprises a wave washer 4, wherein the wave washer 4 has elasticity, and the wave washer 4 is arranged between the end face of the bearing 3 and the inner end face of the end cover 1, so as to prevent the bearing 3 and the end cover 1 from colliding with each other, form larger noise, and prevent the bearing 3 from being damaged after multiple collisions, thereby influencing the rotation of the rotor 2.
The utility model relates to a bearing 3 mounting structure of a motor rotor 2, which comprises a limiting part 5, wherein the limiting part 5 is arranged between an end cover 1 and the bearing 3; one end of the limiting part 5 can be abutted on the end cover 1 or the bearing 3, the other end of the limiting part is abutted on one end of the waveform gasket 4, the other end of the waveform gasket 4 is abutted on the bearing 3 or the end cover 1, the minimum distance between the limiting part 5 and the bearing 3 or the end cover 1 is smaller than the limit compression stroke of the waveform gasket 4, when the limiting part 5 is abutted on the bearing 3 or the end cover 1 in the process of compressing the waveform gasket 4 in operation, the compression process of the waveform gasket 4 is stopped when the limit compression stroke of the waveform gasket 4 is reached, the waveform gasket 4 is prevented from being damaged under extreme working conditions, the service life of the waveform gasket 4 is ensured, and the noise elimination effect of the motor rotor 2 is ensured.
As shown in fig. 1, in the bearing 3 mounting structure of the motor rotor 2 according to the embodiment of the utility model, the limit part 5 includes a fixed end 51 and a limit end 52, the thickness of the limit end 52 is greater than that of the limit end 52, the waveform gasket 4 is abutted to the fixed end 51, one end of the fixed end 51 is connected with the waveform gasket 4, and the other end is connected with the end face of the end cover 1 or the end face of the bearing 3, so that no gap exists between the waveform gasket 4 and the bearing 3 or the end cover 1; the limiting end 52 extends into the space between the bearing 3 and the end cover 1, and is not contacted with the waveform gasket 4, the limiting end 52 is abutted to the end surface of the end cover 1 or the bearing 3 when the waveform gasket 4 is in extreme compression, the compression process of the waveform gasket 4 is stopped, the waveform gasket 4 is prevented from being damaged under extreme working conditions, the service life of the waveform gasket 4 is ensured, and the noise elimination effect of the motor rotor 2 is ensured.
As shown in fig. 1, in some embodiments of the present utility model, one end of the wave washer 4 is connected to the fixed end 51, the other end is connected to the end cover 1, and one end of the limiting portion 5 facing away from the wave washer 4 is connected to the end face of the bearing 3; that is, one end of the waveform gasket 4 is connected with the end cover 1, the other end is connected with the limiting part 5, one end of the limiting part 5 is connected with the bearing 3, the other end is connected with the waveform gasket 4, the limiting end 52 of the limiting part 5 is arranged towards the end cover 1, and the limiting end 52 can be abutted on the end cover 1 during compression to prevent the waveform gasket 4 from being damaged when being compressed beyond a threshold value.
As shown in fig. 2, in other embodiments of the present utility model, one end of the wave washer 4 is connected to the fixed end 51, the other end is connected to the bearing 3, and one end of the limiting portion 5 facing away from the wave washer 4 is connected to the end face of the end cover 1; namely, one end of the waveform gasket 4 is connected with the bearing 3, the other end of the waveform gasket is connected with the limiting part 5, one end of the limiting part 5 is connected with the end cover 1, the other end of the limiting part 5 is connected with the waveform gasket 4, the limiting end 52 of the limiting part 5 is arranged towards the bearing 3, and the limiting end 52 can be abutted on the bearing 3 during compression to prevent the waveform gasket 4 from being damaged when being compressed beyond a threshold value; this embodiment is rotated with respect to the positions of the corrugated spacer 4 and the end cap 1 in the previous embodiment.
In some embodiments of the present utility model, the limiting part 5 includes a distance ring, one end outer ring of the distance ring is a fixed end 51 for connecting the waveform gasket 4 and the bearing 3, and the inner ring is a limiting end 52 for abutting against the end cover 1 during compression, so as to prevent the waveform gasket 4 from being damaged when being compressed beyond a threshold value, ensure the service life of the waveform gasket 4, and ensure the noise elimination effect of the motor rotor 2.
In some embodiments of the present utility model, the end face of the end cap 1 is provided with a shoulder toward the bearing 3, the shoulder is used for fixing the position of the wave washer 4, the wave washer 4 is connected with the end face of the end cap 1 through the shoulder, so that the wave washer 4 has a certain pre-compression amount, and the wave washer 4 can be fixed between the end cap 1 and the limiting part 5 through the pre-compression amount.
In some embodiments of the present utility model, a plurality of waveform gaskets 4 are disposed between the end cover 1 and the bearing 3, the plurality of waveform gaskets 4 cooperate to enhance the noise elimination effect, and the common elasticity of the plurality of waveform gaskets 4 is stronger, so that the compression effect of the bearing 3 on the bearing can be further overcome, the limit compression stroke is more difficult to reach, and the service life of the waveform gaskets 4 is ensured.
In some embodiments of the present utility model, the thickness of the plurality of waveform gaskets 4 is the same, the plurality of waveform gaskets 4 are concentrically sleeved, both ends of each waveform gasket 4 are abutted against the limiting part 5 and the end cover 1, further, the plurality of waveform gaskets 4 are abutted against the fixing part, so that the noise elimination effect is enhanced, the common elasticity of the plurality of waveform gaskets 4 is stronger, the compression effect of the bearing 3 on the bearing can be further overcome, the limit compression stroke is more difficult to reach, and the service life of the waveform gaskets 4 is ensured.
In some embodiments of the present utility model, the number of the limiting parts 5 is also multiple, the number of the limiting parts 5 is the same as that of the waveform gaskets 4, and the limiting ends 52 and the fixed ends 51 of different limiting parts 5 are also concentrically arranged; each limiting part 5 corresponds to one waveform gasket 4, and for the waveform gaskets 4 with different thicknesses, the thickness of the limiting end 52 and the thickness of the fixed end 51 of the limiting part 5 can be correspondingly adjusted.
The utility model also provides an electric machine comprising a rotor 2, the rotor 2 being secured to the end cap 1 by a bearing 3 mounting arrangement according to any of the embodiments described above. The inner side of the end cover 1 is provided with a rotor 2, and the outer peripheral surface of the rotor 2 is connected with the inner peripheral surface of the end cover 1 through a bearing 3; the wave washer 4 is arranged between the end cover 1 and the bearing 3, and the limit part 5 is also arranged between the end cover 1 and the bearing 3; one end of the bottom plate of the limiting part 5 can be abutted against the end cover 1 or the bearing 3, the other end of the bottom plate is abutted against one end of the waveform gasket 4, the other end of the waveform gasket 4 is abutted against the bearing 3 or the end cover 1, and at the moment, the minimum distance between the limiting part 5 and the bearing 3 or the end cover 1 is smaller than the limit compression stroke of the waveform gasket 4; during operation, in the process that the waveform gasket 4 compresses, when the limit compression stroke of the waveform gasket 4 is reached, the limiting part 5 can be abutted on the bearing 3 or the end cover 1, the compression process of the waveform gasket 4 is stopped, the waveform gasket 4 is prevented from being damaged under the extreme working condition, the service life of the waveform gasket 4 is ensured, and the noise elimination effect of the motor rotor 2 is ensured.
The working process of the utility model is as follows: the wave washer 4 is arranged between the end cover 1 and the bearing 3, and the limit part 5 is also arranged between the end cover 1 and the bearing 3; one end of the limiting part 5 can be abutted against the end cover 1 or the bearing 3, the other end of the limiting part is abutted against one end of the waveform gasket 4, the other end of the waveform gasket 4 is abutted against the bearing 3 or the end cover 1, and at the moment, the minimum distance between the limiting part 5 and the bearing 3 or the end cover 1 is smaller than the limit compression stroke of the waveform gasket 4; in operation, when the waveform gasket 4 is compressed, the limit part 5 is abutted against the bearing 3 or the end cover 1 to stop the compression process of the waveform gasket 4 when the limit compression stroke of the waveform gasket 4 is reached.
In summary, the embodiment of the utility model provides a motor and a bearing 3 mounting structure of a rotor 2 thereof, in the process of compressing a waveform gasket 4, when the limit compression stroke of the waveform gasket 4 is reached, a limit part 5 can be abutted against the bearing 3 or an end cover 1 to stop the compression process of the waveform gasket 4, so that the waveform gasket 4 is prevented from being damaged under extreme working conditions, the service life of the waveform gasket 4 is ensured, and the noise elimination effect of the motor rotor 2 is ensured.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present utility model, and these modifications and substitutions should also be considered as being within the scope of the present utility model.
Claims (10)
1. A bearing mounting structure for a motor rotor, comprising:
the inner side of the end cover is provided with a rotor, and the outer peripheral surface of the rotor is connected with the inner peripheral surface of the end cover through a bearing;
the wave-shaped gasket is arranged between the end face of the bearing and the inner side end face of the end cover;
the limiting part is arranged between the end face of the bearing and the inner side end face of the end cover;
one end of the waveform gasket is abutted against the limiting part, the other end of the waveform gasket is abutted against the end face of the end cover or the end face of the bearing, and the minimum distance between the limiting part and the end cover or the bearing is smaller than the limit compression stroke of the waveform gasket.
2. The bearing mounting structure of a motor rotor according to claim 1, characterized in that: the limiting part comprises a fixed end and a limiting end, the waveform gasket is abutted to the fixed end, and the limiting end is used for being abutted to the end cover or the end face of the bearing when the waveform gasket is in limit compression.
3. The bearing mounting structure of a motor rotor according to claim 2, characterized in that: one end of the waveform gasket is connected with the fixed end, the other end of the waveform gasket is connected with the end cover, and one end of the limiting part, which is opposite to the waveform gasket, is connected with the end face of the bearing.
4. The bearing mounting structure of a motor rotor according to claim 2, characterized in that: one end of the waveform gasket is connected with the fixed end, the other end of the waveform gasket is connected with the bearing, and one end of the limiting part, which is opposite to the waveform gasket, is connected with the end face of the end cover.
5. The bearing mounting structure of a motor rotor according to any one of claims 1 to 4, wherein: the limiting part comprises a distance ring.
6. A bearing mounting structure for a motor rotor according to claim 3, wherein: the end face of the end cover faces the direction of the bearing, a shaft shoulder is arranged on the end face of the end cover, and the wave-shaped gasket is connected with the end face of the end cover through the shaft shoulder.
7. The bearing mounting structure of a motor rotor according to claim 1, characterized in that: a plurality of wave gaskets are arranged between the end cover and the bearing.
8. The bearing mounting structure of a motor rotor according to claim 7, wherein: the wave-shaped gaskets are arranged in a concentric sleeved mode, and the wave-shaped gaskets are all abutted to the limiting parts.
9. The bearing mounting structure of a motor rotor as claimed in claim 8, wherein: the limiting parts are also arranged in a plurality, and the number of the limiting parts is the same as that of the waveform gaskets.
10. An electric machine comprising a rotor, characterized in that: the rotor is fixed to the end cover by the bearing mounting structure of the motor rotor according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223246206.1U CN219351426U (en) | 2022-12-02 | 2022-12-02 | Motor and bearing mounting structure of rotor thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223246206.1U CN219351426U (en) | 2022-12-02 | 2022-12-02 | Motor and bearing mounting structure of rotor thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219351426U true CN219351426U (en) | 2023-07-14 |
Family
ID=87107501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223246206.1U Active CN219351426U (en) | 2022-12-02 | 2022-12-02 | Motor and bearing mounting structure of rotor thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219351426U (en) |
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2022
- 2022-12-02 CN CN202223246206.1U patent/CN219351426U/en active Active
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Effective date of registration: 20240313 Granted publication date: 20230714 |
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