CN113224926B - Bearing capable of automatically adjusting concentricity of shaft and application method thereof - Google Patents
Bearing capable of automatically adjusting concentricity of shaft and application method thereof Download PDFInfo
- Publication number
- CN113224926B CN113224926B CN202110560977.9A CN202110560977A CN113224926B CN 113224926 B CN113224926 B CN 113224926B CN 202110560977 A CN202110560977 A CN 202110560977A CN 113224926 B CN113224926 B CN 113224926B
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- Prior art keywords
- bearing
- oil
- shaft
- adjusting mechanism
- end cover
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/16—Centering rotors within the stator; Balancing rotors
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
- H02K5/1732—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings radially supporting the rotary shaft at both ends of the rotor
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Support Of The Bearing (AREA)
Abstract
The invention discloses a bearing capable of automatically adjusting the concentricity of a shaft and an application method thereof, wherein the bearing comprises a machine shell, the shaft movably arranged in the machine shell, a rotor iron core arranged on the shaft and a plurality of oil-containing bearings arranged on the shaft; the device is characterized by also comprising a concentric self-adjusting mechanism for positioning the oil-retaining bearing; the concentric self-adjusting mechanism is provided with a first positioning piece and a second positioning piece which are convenient for positioning the oil bearing, and the oil bearing is provided with a third positioning piece which is matched with the first positioning piece of the concentric self-adjusting mechanism. According to the invention, through the arrangement of the concentric self-adjusting mechanism, when the axle and the axle centers of the oil-containing bearings at two ends are deviated and not in the same straight line, the self-aligning is realized by extruding the concentric self-adjusting mechanism, so that the axle and the axle centers of the oil-containing bearings at two ends of the axle are always kept in the same straight line, manual trimming is not needed, and the cost is low.
Description
Technical Field
The invention relates to a bearing, in particular to a bearing capable of automatically adjusting the concentricity of a shaft and an application method thereof.
Background
In mechanical equipment, the use of bearings is very common, for example, a motor rotor can use the bearings when being installed and used, and a shaft of the motor rotor is movably connected with end covers at two ends of a machine shell through the bearings so as to rotate the motor rotor; when the end covers at the two ends of the shell are manufactured and installed, holes which are movably connected with the shaft on the two end covers have deviation in concentricity due to errors in manufacturing and installation, so that the shaft and the bearing can be installed on the end covers only by manual trimming when the shaft is installed; if the motor rotor has the problem of eccentricity after being installed, the shaft and the three points of the bearings at the two ends of the shaft are not in the same straight line, motor noise can be generated, and overlarge current and large side effects can be caused due to large resistance;
at present, ball bearings are adopted for bearings at two ends of a motor rotor, and the center of the motor rotor is adjusted through the ball bearings, but the cost is high. Therefore, the bearing capable of automatically adjusting the concentricity of the shaft and the application method thereof are provided.
Disclosure of Invention
The invention aims to solve the problems and provides a bearing capable of automatically adjusting the concentricity of a shaft and an application method thereof.
In order to achieve the purpose, the invention provides a bearing capable of automatically adjusting the concentricity of a shaft, which comprises a machine shell, the shaft movably arranged in the machine shell, a rotor iron core arranged on the shaft and a plurality of oil-containing bearings arranged on the shaft; the device is characterized by also comprising a concentric self-adjusting mechanism for positioning the oil-retaining bearing; the concentric self-adjusting mechanism is provided with a first positioning piece and a second positioning piece which are convenient for positioning the oil-retaining bearing, and the oil-retaining bearing is provided with a third positioning piece matched with the first positioning piece of the concentric self-adjusting mechanism; the first positioning piece is a bearing installation groove matched with the oil-retaining bearing, the second positioning piece is a plurality of bulges arranged on the inner wall of the bearing installation groove, and the third positioning piece is a limiting groove which is arranged on the oil-retaining bearing and matched with the bulges; and a plurality of deformation holes are distributed on the concentric self-adjusting mechanism along the axis.
Preferably, the front end cover and the rear end cover are respectively mounted at two ends of the casing, and mounting grooves matched with the concentric self-adjusting mechanism are formed in the front end cover and the rear end cover.
Further preferably, the concentric self-adjusting mechanism is made of one of silica gel, silicone rubber, natural rubber, styrene butadiene rubber, nitrile rubber, butadiene rubber, isoprene rubber, ethylene propylene rubber and chloroprene rubber.
An application method of a bearing capable of automatically adjusting the concentricity of a shaft is characterized in that: the using steps are as follows:
the first step is as follows: firstly, mounting an oil bearing on a concentric self-adjusting mechanism and then mounting the oil bearing on a shaft;
the second step is that: mounting the rear end cover on the machine shell, then enabling one end of the shaft to penetrate through the rear end cover, and enabling the concentric self-adjusting mechanism and the oil-containing bearing to be positioned in the mounting groove of the front end cover;
the third step: the front end cover penetrates through the other end of the shaft and then is fixedly connected with the machine shell, and meanwhile, the concentric self-adjusting mechanism and the oil-containing bearing on the other end of the shaft are positioned in the mounting groove on the front end cover.
According to the invention, through the arrangement of the concentric self-adjusting mechanism, when the axle and the axle centers of the oil-containing bearings at two ends are deviated and not in the same straight line, the self-aligning is realized by extruding the concentric self-adjusting mechanism, so that the axle and the axle centers of the oil-containing bearings at two ends of the axle are always kept in the same straight line, manual trimming is not needed, and the cost is low.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the oil-retaining bearing structure of the present invention;
FIG. 3 is a schematic structural view of a concentric self-adjusting mechanism according to the present invention
FIG. 4 is a schematic cross-sectional view of the present invention in an applied state;
fig. 5 is a schematic sectional view of the front end cap according to the present invention.
Illustration of the drawings: 1. a housing; 2. a shaft; 3. a rotor core; 4. an oil-retaining bearing; 41. a third positioning piece; 5. a concentric self-adjusting mechanism; 51. a first positioning piece; 52. a second positioning piece; 53. a deformation hole; 6. a front end cover; 7. a rear end cap; 8. and (4) mounting the groove.
Detailed Description
The bearing capable of automatically adjusting the concentricity of the shaft and the application method thereof are further described below with reference to the accompanying drawings.
Referring to fig. 1-4, a bearing capable of automatically adjusting the concentricity of a shaft according to this embodiment includes a housing 1, a shaft 2 movably installed in the housing 1, a rotor core 3 installed on the shaft 2, and a plurality of oil-retaining bearings 4 installed on the shaft 2; the device is characterized by also comprising a concentric self-adjusting mechanism 5 for positioning the oil bearing 4; the concentric self-adjusting mechanism 5 is provided with a first positioning piece 51 and a second positioning piece 52 which are convenient for positioning the oil-retaining bearing 4, and the oil-retaining bearing 4 is provided with a third positioning piece 41 which is matched with the first positioning piece 51 of the concentric self-adjusting mechanism 5; through the arrangement of the concentric self-adjusting mechanism 5, when the axes of the shaft 2 and the oil-containing bearings 4 at the two ends are deviated and not in the same straight line, the concentric self-adjusting mechanism 5 is extruded to realize self-aligning, so that the axes of the shaft 2 and the oil-containing bearings 4 at the two ends of the shaft 2 are always kept in the same straight line, manual trimming is not needed, and the cost is low; the oil-retaining bearing 4 is convenient to mount through the arrangement of the second positioning piece 52, and the connection between the oil-retaining bearing 4 and the concentric self-adjusting mechanism 5 and the position limitation are increased through the arrangement and the matching of the second positioning piece 52 and the third positioning piece 41.
Further, referring to fig. 2-3, the first positioning element 51 is a bearing installation groove adapted to the oil-retaining bearing 4, the second positioning element 52 is a plurality of protrusions disposed on an inner wall of the bearing installation groove, and the third positioning element 41 is a limiting groove disposed on the oil-retaining bearing 4 and adapted to the protrusions; the first positioning piece 51 is arranged as a bearing installation groove, so that the oil-retaining bearing 4 is convenient to install; the second positioning piece 52 and the third positioning piece 41 are respectively a plurality of bulges arranged on the inner wall of the bearing installation groove and a limiting groove which is arranged on the oil-retaining bearing and is matched with the bulges, and the connection between the oil-retaining bearing 4 and the concentric self-adjusting mechanism 5 and the installation position are increased and limited by the matching of the bulges and the limiting groove.
Further, referring to fig. 4-5, a front end cover 6 and a rear end cover 7 are respectively installed at two ends of the housing, and both the front end cover 6 and the rear end cover 7 are provided with mounting grooves 8 adapted to the concentric self-adjusting mechanism 5; the positions of the concentric self-adjusting mechanism 5 and the oil-containing bearing 4 on the front end cover 6 and the rear end cover 7 are defined by the arrangement of the mounting grooves 8.
Further, referring to fig. 3, a plurality of deformation holes 53 are distributed on the concentric self-adjusting mechanism 5 along the axis; through the arrangement of the deformation holes 53, when the shaft 2 and the oil-containing bearing 4 extrude the concentric self-adjusting mechanism 5, the concentric self-adjusting mechanism can be pressed and deformed through the deformation holes 53 and distributed along the axis, so that when the shaft 2 and the oil-containing bearing 4 extrude the concentric self-adjusting mechanism 5 in any direction, the concentric self-adjusting mechanism can be deformed through the deformation holes 53, and self-aligning can be realized when the concentric self-adjusting mechanism is inclined towards all directions.
Further, the concentric self-adjusting mechanism 5 is made of one of silica gel, silicon rubber, natural rubber, styrene butadiene rubber, nitrile rubber, butadiene rubber, isoprene rubber, ethylene propylene rubber and chloroprene rubber.
When the invention is applied: referring to fig. 1-5, the oil-retaining bearing 4 is first installed on the concentric self-adjusting mechanism 5 through the first positioning member 51, and the second positioning member 52 is engaged with the third positioning member 41 during installation; then the rear end cover 7 is installed on the machine shell 1, one end of the shaft 2 penetrates through the rear end cover 7, and meanwhile the concentric self-adjusting mechanism 5 and the oil-containing bearing 4 are installed in the installation groove 8 of the front end cover 6; then the front end cover 6 is fixedly connected with the machine shell 1 after penetrating through the other end of the shaft 2, and simultaneously the concentric self-adjusting mechanism 5 and the oil-containing bearing 4 on the other end of the shaft 2 are positioned in the mounting groove 8 on the front end cover 6 and are mounted.
The scope of protection of the invention is not limited to the above embodiments and variations thereof. The present invention is not limited to the above embodiments, but may be modified in various ways.
Claims (3)
1. A bearing capable of automatically adjusting the concentricity of a shaft comprises a machine shell, the shaft movably arranged in the machine shell, a rotor iron core arranged on the shaft and a plurality of oil-containing bearings (4) arranged on the shaft; the device is characterized by also comprising a concentric self-adjusting mechanism (5) for positioning the oil-retaining bearing (4); a first positioning piece (51) and a second positioning piece (52) which are convenient for positioning the oil bearing (4) are arranged on the concentric self-adjusting mechanism (5), and a third positioning piece (41) which is matched with the second positioning piece (52) of the concentric self-adjusting mechanism (5) is arranged on the oil bearing (4); the first positioning piece (51) is a bearing installation groove matched with the oil-retaining bearing (4), the second positioning piece (52) is a plurality of bulges arranged on the inner wall of the bearing installation groove, and the third positioning piece (41) is a limiting groove which is arranged on the oil-retaining bearing (4) and is matched with the bulges; a plurality of deformation holes (53) are distributed on the concentric self-adjusting mechanism (5) along the axis; the concentric self-adjusting mechanism (5) is made of one of silica gel, silicon rubber, natural rubber, styrene butadiene rubber, nitrile butadiene rubber, isoprene rubber, ethylene propylene rubber and chloroprene rubber.
2. A bearing having an automatically adjustable axial concentricity as claimed in claim 1, wherein: and a front end cover and a rear end cover are respectively arranged at two ends of the casing, and mounting grooves matched with the concentric self-adjusting mechanism (5) are formed in the front end cover and the rear end cover.
3. The method for applying a bearing with an automatically adjustable concentricity of a shaft as claimed in any one of claims 1 to 2, wherein: the bearing comprises the following steps:
the first step is as follows: firstly, an oil bearing (4) is arranged on a concentric self-adjusting mechanism (5) and then is arranged on a shaft;
the second step: mounting the rear end cover on the machine shell, then enabling one end of the shaft to penetrate through the rear end cover, and enabling the concentric self-adjusting mechanism (5) and the oil-containing bearing (4) to be positioned in the mounting groove of the front end cover;
the third step: the front end cover penetrates through the other end of the shaft (2) and then is fixedly connected with the machine shell (1), and meanwhile, the concentric self-adjusting mechanism (5) and the oil-containing bearing (4) on the other end of the shaft (2) are positioned in the mounting groove on the front end cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110560977.9A CN113224926B (en) | 2021-05-22 | 2021-05-22 | Bearing capable of automatically adjusting concentricity of shaft and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110560977.9A CN113224926B (en) | 2021-05-22 | 2021-05-22 | Bearing capable of automatically adjusting concentricity of shaft and application method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113224926A CN113224926A (en) | 2021-08-06 |
| CN113224926B true CN113224926B (en) | 2022-07-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110560977.9A Active CN113224926B (en) | 2021-05-22 | 2021-05-22 | Bearing capable of automatically adjusting concentricity of shaft and application method thereof |
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| Country | Link |
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| CN (1) | CN113224926B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207080524U (en) * | 2017-08-31 | 2018-03-09 | 纽尚(宁波)汽车轴承制造有限公司 | A kind of release bearing with rubber ring |
| CN207910589U (en) * | 2018-01-24 | 2018-09-25 | 慈溪市天行电器有限公司 | The anti-eccentric structure of Motor for dish-washing machine |
| JP2020034105A (en) * | 2018-08-30 | 2020-03-05 | 日本電産株式会社 | motor |
-
2021
- 2021-05-22 CN CN202110560977.9A patent/CN113224926B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207080524U (en) * | 2017-08-31 | 2018-03-09 | 纽尚(宁波)汽车轴承制造有限公司 | A kind of release bearing with rubber ring |
| CN207910589U (en) * | 2018-01-24 | 2018-09-25 | 慈溪市天行电器有限公司 | The anti-eccentric structure of Motor for dish-washing machine |
| JP2020034105A (en) * | 2018-08-30 | 2020-03-05 | 日本電産株式会社 | motor |
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| Publication number | Publication date |
|---|---|
| CN113224926A (en) | 2021-08-06 |
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