CN210371686U - Low-noise thin-wall bearing - Google Patents
Low-noise thin-wall bearing Download PDFInfo
- Publication number
- CN210371686U CN210371686U CN201920845327.7U CN201920845327U CN210371686U CN 210371686 U CN210371686 U CN 210371686U CN 201920845327 U CN201920845327 U CN 201920845327U CN 210371686 U CN210371686 U CN 210371686U
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- CN
- China
- Prior art keywords
- inner circumferential
- circumferential surface
- rolling
- rolling element
- low noise
- 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
Links
- 238000005096 rolling process Methods 0.000 claims abstract description 84
- 230000002093 peripheral effect Effects 0.000 claims abstract description 13
- 239000004677 Nylon Substances 0.000 claims description 5
- 229920001778 nylon Polymers 0.000 claims description 5
- 238000003860 storage Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 239000004519 grease Substances 0.000 description 5
- 230000001050 lubricating effect Effects 0.000 description 5
- 239000010687 lubricating oil Substances 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
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- Rolling Contact Bearings (AREA)
Abstract
The utility model discloses a thin wall bearing of low noise, including outer lane, inner circle, rolling element, holder, the holder equipartition have with the corresponding pocket hole of rolling element quantity, the inner peripheral surface in pocket hole is the sphere, the pocket hole will the rolling element contains, the pocket hole is followed the passageway of rolling element impressing has been seted up to axial one side of holder, the pocket hole with rolling element clearance fit, the aperture that the passageway was impressed to the rolling element is less than the diameter of rolling element through the improvement to the holder structure, adopts the pocket hole of sphere form to contain the rolling element, reduces the clearance between rolling element and the holder, reduces the vibration that the drunkenness between rolling element and the holder arouses by a wide margin, makes the bearing rotate more steadily, and the noise is lower.
Description
Technical Field
The utility model belongs to the technical field of the thin-walled bearing, specifically speaking relate to a thin-walled bearing of low noise.
Background
The bearing comprises an inner bearing ring, an outer bearing ring and a plurality of rolling bodies arranged between the bearing rings, wherein the rolling bodies are raceways in groove-shaped raceways in the inner surfaces of the inner bearing ring and the outer bearing ring, but under the condition that the circumferential width of an inner groove of the bearing is large, the central position of the retainer can generate large displacement, so that the retainer generates abnormal vibration in the bearing operation process, interference is generated between a cavity of the retainer and the rolling bodies, and noise between the retainer and the retainer is generated. At present, the requirements for noise, life and bearing are higher and higher, so that it is necessary to research the structure of the bearing to provide a low-noise bearing.
Disclosure of Invention
The utility model aims at providing a thin wall bearing of low noise, its reduction bearing that can be obvious rotates the noise of in-process.
In order to solve the technical problem, the purpose of the utility model is to realize like this:
the utility model provides a thin wall bearing of low noise, includes outer lane, inner circle, rolling element, holder, its characterized in that: pockets corresponding to the rolling bodies in number are uniformly distributed in the retainer, the pockets contain the rolling bodies, a rolling body pressing-in channel is formed in one axial side of the retainer, the pockets are in clearance fit with the rolling bodies, and the opening degree of the rolling body pressing-in channel is smaller than the diameter of the rolling bodies;
the retainer is of an integrated structure.
On the basis of the above scheme and as a preferable scheme of the scheme: the inner peripheral surface of the pocket consists of a first inner peripheral surface and a second inner peripheral surface, and an inwards concave oil storage depression is formed at the joint of the first inner peripheral surface and the second inner peripheral surface.
On the basis of the above scheme and as a preferable scheme of the scheme: the first inner circumferential surface is a spherical surface, the second inner circumferential surface is a cylindrical surface, and the first inner circumferential surface is positioned below the second inner circumferential surface and is connected with the second inner circumferential surface.
On the basis of the above scheme and as a preferable scheme of the scheme: the opening of the rolling body pressing-in channel is provided with a clamping part, the clamping part comprises clamping lips symmetrically and fixedly arranged on the edge of the rolling body pressing-in channel, each clamping lip is provided with a third inner circumferential surface, the third inner circumferential surface is a spherical surface, and the third inner circumferential surface is in transitional connection with the second inner circumferential surface through a curved surface.
On the basis of the above scheme and as a preferable scheme of the scheme: the minimum distance between the tops of the two clamping lips of each clamping part is smaller than the diameter of the rolling body and larger than two thirds of the diameter of the rolling body.
On the basis of the above scheme and as a preferable scheme of the scheme: the top end of the clamping lip is arc-shaped.
On the basis of the above scheme and as a preferable scheme of the scheme: the retainer and the clamping lip are integrally formed.
On the basis of the above scheme and as a preferable scheme of the scheme: the retainer is made of nylon.
Compared with the prior art, the utility model outstanding and profitable technological effect is:
1. through the improvement to the retainer structure, adopt the spherical pocket to contain the rolling element, reduce the clearance between rolling element and the retainer, reduce the vibration that the drunkenness between rolling element and the retainer arouses by a wide margin, make the bearing rotate more steadily.
The retainer is made of nylon, and compared with a metal retainer, the retainer made of nylon can well absorb vibration transmitted by the rolling bodies, the inner ring and the outer ring in the vibration process, and further reduce noise caused by movement and vibration.
The oil storage depression can well store lubricating oil or lubricating grease, and the lubricating oil or the lubricating grease can be adhered to the surface of the rolling element along with the rotation of the rolling element to perform good lubrication.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a front view of the overall structure of the cage.
Fig. 3 is a side view of the cage structure.
FIG. 4 is a partial enlarged view of the pocket structure.
Detailed Description
In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. All other embodiments obtained by a person skilled in the art without making any inventive step, based on the given embodiments, fall within the scope of protection of the present application.
In the description of the present application, it is to be understood that the terms "upper", "lower", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
In the description of the present application, the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated.
The utility model provides a thin-walled bearing of low noise, includes outer lane 1, inner circle 2, rolling element 3, holder 4 equipartition have with the corresponding pocket hole 42 of rolling element 3 quantity, pocket hole 42 will rolling element 3 contains, pocket hole 42 is followed the axial one side of holder 4 has been seted up rolling element passageway 421 of impressing, pocket hole 42 with 3 clearance fit of rolling element, the aperture that the passageway 421 is impressed to the rolling element is less than the diameter of rolling element 3.
The pockets 42 form accommodating cavities of the rolling bodies 3, the rolling bodies 3 can be accommodated in the accommodating cavities, the radius of the accommodating cavities is slightly larger than that of the rolling bodies 3, so that the rolling bodies 3 can move in the accommodating cavities, the play of the rolling bodies in the pockets is reduced, the vibration of the rolling bodies in the bearing operation process can be obviously reduced, and the noise generated by the vibration is reduced.
The rolling body 3 is pressed into the pocket 42 through the rolling body pressing passage 421, in order to limit the rolling body 3 from being released from the rolling body pressing passage 421, in this embodiment, it is preferable that the opening of the rolling body pressing passage 421 is smaller than the diameter of the rolling body 3, so that the retainer has elasticity, and in the process of pressing the rolling body into the pocket from the rolling body pressing passage 421, the rolling body presses the rolling body pressing passage 421 into elastic deformation by the rolling body to be spread, so that the rolling body 3 enters the pocket 42, and then the opening of the rolling body pressing passage 421 returns to the original size, so that the rolling body is limited in the pocket 42.
Preferably, the inner circumferential surface of the pocket 42 is composed of a first inner circumferential surface 422 and a second inner circumferential surface 423, and a concave oil reservoir 424 is formed at the joint of the first inner circumferential surface 422 and the second inner circumferential surface 423, so that the oil reservoir can well store lubricating oil or lubricating grease, and the lubricating oil or the lubricating grease can be adhered to the surface of the rolling element to be lubricated well along with the rotation of the rolling element.
Preferably, the first inner circumferential surface 422 is a spherical surface, the second inner circumferential surface 423 is a cylindrical surface, and the first inner circumferential surface 422 is located below the second inner circumferential surface 423 and is connected with the second inner circumferential surface 423.
In order to further increase the moving space of the rolling elements 3 and the anti-slip function of the rolling elements 3, a clamping part 43 is arranged at the opening of the rolling element pressing channel 421, the clamping part 43 comprises clamping lips 431 symmetrically fixed at the edge of the rolling element pressing channel 421, the retaining lip 431 has a third inner peripheral surface 432, the third inner peripheral surface 432 being spherical, and the third inner circumferential surface 432 is transitionally connected with the second inner circumferential surface 423 through a curved surface, which is equivalent to increase the inner surface of the accommodating space, so that the rolling body 3 is more stable in the bearing operation process, meanwhile, the clamping lip 431 further increases the containing effect on the rolling body, the play of the rolling body is further reduced, the noise of the rolling body caused by vibration is obviously reduced, and a necking structure is formed by the clamping part 43, so that the difficulty of the rolling body coming out of the pocket is greatly improved, and the stability of the bearing is improved; in addition, in this embodiment, the minimum distance between the tops of the two clamping lips 431 of each clamping portion 43 is preferably smaller than the diameter of the rolling element 3 and larger than two thirds of the diameter of the rolling element 3, so that the rolling element 3 can be pressed into the pocket from between the two clamping lips 431, and the rolling element can be effectively prevented from falling out.
In the present embodiment, the top end of the retaining lip 431 is formed in an arc shape, and the top end of the arc shape is designed to guide the rolling elements into between the retaining lips and smoothly enter into the pockets.
Preferably, the retainer 4 is made of nylon, has good comprehensive performance including mechanical property, heat resistance, wear resistance and self-lubrication, is low in friction coefficient and easy to machine and form, and has low requirements on lubricating grease relative to a metal retainer in the bearing operation process.
Further, in order to improve the stability and consistency of the retainer, the body 41 and the clamping lip 431 of the retainer 4 are integrally injection molded in this embodiment.
The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a thin wall bearing of low noise, includes outer lane, inner circle, rolling element, holder, its characterized in that: pockets corresponding to the rolling bodies in number are uniformly distributed in the retainer, the pockets contain the rolling bodies, a rolling body pressing-in channel is formed in one axial side of the retainer, the pockets are in clearance fit with the rolling bodies, and the opening degree of the rolling body pressing-in channel is smaller than the diameter of the rolling bodies;
the retainer is of an integrated structure.
2. A low noise thin wall bearing according to claim 1, wherein: the inner peripheral surface of the pocket consists of a first inner peripheral surface and a second inner peripheral surface, and an inwards concave oil storage depression is formed at the joint of the first inner peripheral surface and the second inner peripheral surface.
3. A low noise thin wall bearing according to claim 2, wherein: the first inner circumferential surface is a spherical surface, the second inner circumferential surface is a cylindrical surface, and the first inner circumferential surface is positioned below the second inner circumferential surface and is connected with the second inner circumferential surface.
4. A low noise thin wall bearing according to claim 1, wherein: the opening of the rolling body pressing-in channel is provided with a clamping part, the clamping part comprises clamping lips symmetrically and fixedly arranged on the edge of the rolling body pressing-in channel, each clamping lip is provided with a third inner circumferential surface, the third inner circumferential surface is a spherical surface, and the third inner circumferential surface is in transitional connection with the second inner circumferential surface through a curved surface.
5. A low noise thin wall bearing according to claim 4, wherein: the minimum distance between the tops of the two clamping lips of each clamping part is smaller than the diameter of the rolling body and larger than two thirds of the diameter of the rolling body.
6. A low noise thin wall bearing according to claim 5, wherein: the top end of the clamping lip is arc-shaped.
7. A low noise thin wall bearing according to claim 1, wherein: the retainer is made of nylon.
8. A low noise thin wall bearing according to any one of claims 4 to 6, wherein: the retainer and the clamping lip are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920845327.7U CN210371686U (en) | 2019-06-05 | 2019-06-05 | Low-noise thin-wall bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920845327.7U CN210371686U (en) | 2019-06-05 | 2019-06-05 | Low-noise thin-wall bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210371686U true CN210371686U (en) | 2020-04-21 |
Family
ID=70263477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920845327.7U Expired - Fee Related CN210371686U (en) | 2019-06-05 | 2019-06-05 | Low-noise thin-wall bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210371686U (en) |
-
2019
- 2019-06-05 CN CN201920845327.7U patent/CN210371686U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200421 |