CN214036521U - Retainer for high-speed bearing - Google Patents
Retainer for high-speed bearing Download PDFInfo
- Publication number
- CN214036521U CN214036521U CN202022472075.3U CN202022472075U CN214036521U CN 214036521 U CN214036521 U CN 214036521U CN 202022472075 U CN202022472075 U CN 202022472075U CN 214036521 U CN214036521 U CN 214036521U
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- CN
- China
- Prior art keywords
- ring surface
- center line
- axial center
- diameter ring
- radial flange
- 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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- 229910000831 Steel Inorganic materials 0.000 abstract description 6
- 239000010959 steel Substances 0.000 abstract description 6
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
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Abstract
A retainer for a high-speed bearing comprises an annular body, a first axial center line, a plurality of straight holes, an outer diameter ring surface, an inner diameter ring surface, a first side ring surface, a second side ring surface and two radial flange portions, wherein the outer diameter ring surface and the inner diameter ring surface are parallel to the first axial center line, the two radial flange portions are respectively connected with the first side ring surface and the second side ring surface, the straight holes are arranged between the two radial flange portions at intervals and radially penetrate through the outer diameter ring surface and the inner diameter ring surface, the straight holes respectively define a second axial center line, a first distance formed by the second axial center line of each straight hole to the first side ring surface is equal to a second distance formed between each second axial center line and the second side ring surface, and when a plurality of steel balls are sleeved in the bearing, the dynamic balance, stability and running speed efficiency are improved through a symmetrical structure.
Description
Technical Field
The utility model relates to a bearing arrangement's technical field indicates a high-speed bearing is with keeping ware especially.
Background
The high-speed performance and precision of the ball bearing are affected by the material of the bearing itself and the machining precision, and the structural design of the bearing is also significantly affected. The structure of the ball bearing generally includes an outer ring, an inner ring, balls, and a ball retainer.
Wherein the ball retainer functions to separate the respective balls so that the plurality of balls can be arranged between the ball tracks of the inner and outer rings at equal angular intervals. How to avoid the collision friction between the ball retainer and the outer ring and the inner ring during operation and improve the dynamic balance during operation is an important issue concerning the bearing performance.
As described in paragraph 0026 of the specification of the new patent "ball bearing with retainer" in taiwan publication No. M578337 with reference to fig. 3 to 5, the ball bearing can prevent the ring-shaped retainer from touching the inner ring and the outer ring during operation, which causes noise and unsmooth operation. As shown in FIG. 4, each receiving groove for receiving the rolling ball formed by the retainer is an asymmetric structure with a single-side opening.
In addition, in taiwan application No. 107142066, the ball retainer for ball bearing according to fig. 3 to 6 includes a first ring portion and a second ring portion with different diameters; it is a primary object of the present invention to provide a ball retainer for a ball bearing, which can be shared with a ball bearing lubricated with grease or oil gas to increase convenience in use.
As can be seen from the above two prior patents, the related manufacturers have been designed to have asymmetrical structures with different diameters on both sides of the ball receiving groove or asymmetrical structures with an opening on one side of the ball receiving groove, aiming at the design of the retainer and meeting specific functional requirements.
However, when the bearing structure runs along the inner ring and the outer ring of the bearing, the dynamic balance of the running is easily affected by the asymmetrical structure of the bearing structure, and the smoothness and the speed performance of the running are reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the main technical problem lies in, overcomes the above-mentioned defect that prior art exists, and provides a high-speed bearing with keeping ware, borrows by the structure that keeps ware body and each through hole formation symmetry of restriction steel ball, when assembling in outer loop body, interior loop body between provide the spacing several steel ball of suit and constitute the bearing, see through the symmetry can effectively improve moving axial dynamic balance and stability to and running speed efficiency.
The utility model provides a technical scheme that its technical problem adopted is:
a retainer for a high speed bearing, comprising: an annular body defining a first axial center line, the annular body having a plurality of straight holes, an outer diameter ring surface, an inner diameter ring surface, a first side ring surface, a second side ring surface and two radial flange portions, the first side ring surface and the second side ring surface are connected with the two sides of the inner diameter ring surface, the outer diameter ring surface and the inner diameter ring surface are parallel to the first axial center line, the two radial flange parts are positioned at two sides of the outer diameter ring surface and are respectively connected with the first side ring surface and the second side ring surface, the straight holes are arranged between the two radial flange parts at intervals and radially penetrate through the outer diameter ring surface and the inner diameter ring surface, and a second axial center line is respectively defined by the plurality of straight holes, a first distance is respectively formed between the second axial center line of each straight hole and the first side ring surface, a second distance is respectively formed between each second axial center line and the second side ring surface, and the first distance is equal to the second distance.
The beneficial effects of the utility model are that, borrow the structure that borrows each through hole formation symmetry of keeping ware body and restriction steel ball, when assembling in outer ring body, interior ring body between provide the spacing several steel ball of suit and when constituting the bearing, see through the symmetry and can effectively improve moving axial dynamic balance and stability to and running speed efficiency.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a perspective view of the present invention.
FIG. 2 is a schematic cross-sectional view taken along line II-II of FIG. 1.
FIG. 3 is a schematic cross-sectional view of the line III-III shown in FIG. 1.
Fig. 4 is a perspective view of the retainer of the present invention assembled between the inner ring and the outer ring.
FIG. 5 is a cross-sectional view of the V-V line shown in FIG. 4.
Fig. 6 is a schematic cross-sectional view of the section VI-VI shown in fig. 4.
Fig. 7 is a partial cross-sectional view of fig. 5.
The reference numbers in the figures illustrate:
holder 1
Ring-shaped body 10
First side ring surface 11
Second side ring surface 12
Inner annular surface 131
Bearing 20
First axial center line A
Second axial centerline B
First distance D1
Second distance D2
First thickness T1
Second thickness T2
Detailed Description
Referring to fig. 1 to 6, the retainer 1 of the present invention for a high speed bearing includes: an annular body 10 extends along a length direction to define an axial direction, and the annular body 10 defines a first axial center line a extending along the axial direction at a central position, and the annular body 10 has a plurality of straight holes 13, an outer diameter ring surface 14, an inner diameter ring surface 15, a first side ring surface 11, a second side ring surface 12 and two radial flange portions 16, the first side ring surface 11 and the second side ring surface 12 are connected to two sides of the inner diameter ring surface 15, the outer diameter ring surface 14 and the inner diameter ring surface 15 are parallel to the first axial center line a, the two radial flange portions 16 are located at two sides of the outer diameter ring surface 14 and are respectively connected to the first side ring surface 11 and the second side ring surface 12, the plurality of straight holes 13 are arranged between the two radial flange portions 16 and radially penetrate through the outer diameter ring surface 14 and the inner diameter ring surface 15, the plurality of straight holes 13 are respectively defined as the axial direction along the extending direction of the holes, and the plurality of straight holes 13 are respectively defined at the central position to have a second axial direction extending along On the center line B, a first distance D1 is formed between the second axial center line B of each straight hole 13 and the first side ring surface 11, a second distance D2 is formed between each second axial center line B and the second side ring surface 12, and the first distance D1 is equal to the second distance D2.
According to the above description, as shown in fig. 4 to 6, when the ring body 10 of the present invention is assembled between the outer ring body 21 and the inner ring body 22, a plurality of steel balls 23 are limited by a plurality of straight holes 13 to form a bearing 20; the annular body 10 has an outer diameter ring surface 14 and an inner diameter ring surface 15 parallel to the first axial center line a, and a plurality of straight holes 13 radially penetrate through the outer diameter ring surface 14 and the inner diameter ring surface 15, and a first distance D1 formed from the second axial center line B of each straight hole 13 to the first side ring surface 11 is equal to a second distance D2 formed from each second axial center line B to the second side ring surface 12, so as to form a symmetrical structure.
As described above, when the ring body 10 is operated between the outer ring body 21 and the inner ring body 22 of the bearing 20, the dynamic balance and the operation stability in the axial direction can be effectively improved, and D can be further improvedmN value (average of bearing inner and outer diameters x rotational speed, which is a measure of bearing rotational speed).
Therefore, the present invention not only forms radial structure reinforcement by the two radial flange parts 16, but also forms an annular groove at the periphery of the annular body 10 by the outer diameter ring surface 14 lower than the two radial flange parts 16, so as to achieve the effect of material reduction and light weight; as shown in fig. 5 and 7, the cage 1 is brought into small-area contact with the inner diameter surface 211 of the outer ring body 21 by the two radial flange portions 16 during operation of the bearing 20, thereby contributing to improvement of operation stability without excessive friction or seizure.
In the following, the features of the components of the present invention are further described in detail, in the above-mentioned fig. 1 to 6, the plurality of straight holes 13 respectively have an inner annular hole surface 131, and each inner annular hole surface 131 is respectively parallel to the second axial centerline B.
Moreover, the two radial flange portions 16 have opposite ring side surfaces 161, a first thickness T1 and a second thickness T2 are respectively formed from the ring side surfaces 161 of the two radial flange portions 16 to the first side ring surface 11 and the second side ring surface 12, and the first thickness T1 is equal to the second thickness T2.
In addition, the outer diameter ring surface 14 and the inner diameter ring surface 15 are concentric circles, and the outer diameter ring surface 14 and the inner diameter ring surface 15 are annular straight surfaces without radial protrusions and depressions formed on the surfaces.
As described above, the present invention utilizes an outer diameter ring surface 14, an inner diameter ring surface 15, and a plurality of straight holes 13 radially penetrating the outer diameter ring surface 14 and the inner diameter ring surface 15, so that the first distance D1 formed from the second axial center line B of each straight hole 13 to the first side ring surface 11 is equal to the second distance D2 formed from each second axial center line B to the second side ring surface 12, thereby forming a symmetrical structure, breaking through the dilemma and the disadvantage of the existing asymmetrical structure of the holder, and achieving the following advantages:
1. when the annular body 10 can run between the outer ring body 21 and the inner ring body 22, the axial dynamic balance and the running stability are effectively improved, and the speed efficiency (D) of the bearing running is improvedmN value), and is particularly suitable for precision bearings for high-speed spindles of over thirty thousand revolutions.
2. The weight reduction and the structural strength are both achieved by the two radial flange portions 16, so that the radial flange portions 16 are brought into small-area contact with the inner diameter surface 211 of the outer ring body 21 during the bearing operation, thereby further improving the operation stability without generating excessive friction.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments still fall within the scope of the technical solution of the present invention.
Claims (4)
1. A retainer for a high-speed bearing, comprising:
an annular body defining a first axial center line, the annular body having a plurality of straight holes, an outer diameter ring surface, an inner diameter ring surface, a first side ring surface, a second side ring surface and two radial flange portions, the first side ring surface and the second side ring surface are connected with the two sides of the inner diameter ring surface, the outer diameter ring surface and the inner diameter ring surface are parallel to the first axial center line, the two radial flange parts are positioned at two sides of the outer diameter ring surface and are respectively connected with the first side ring surface and the second side ring surface, the straight holes are arranged between the two radial flange parts at intervals and radially penetrate through the outer diameter ring surface and the inner diameter ring surface, and a second axial center line is respectively defined by the plurality of straight holes, a first distance is respectively formed between the second axial center line of each straight hole and the first side ring surface, a second distance is respectively formed between each second axial center line and the second side ring surface, and the first distance is equal to the second distance.
2. The retainer of claim 1, wherein each of the plurality of straight bores has an inner bore surface, and each inner bore surface is parallel to the second axial centerline.
3. The retainer of claim 1, wherein the two radial flange portions have opposite annular side surfaces, and the annular side surfaces of the two radial flange portions extend from the first side annular surface to the second side annular surface to a first thickness and a second thickness, respectively, and the first thickness is equal to the second thickness.
4. The retainer of claim 1, wherein the outer and inner diameter ring surfaces are concentric circles and are annular straight surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022472075.3U CN214036521U (en) | 2020-10-31 | 2020-10-31 | Retainer for high-speed bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022472075.3U CN214036521U (en) | 2020-10-31 | 2020-10-31 | Retainer for high-speed bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214036521U true CN214036521U (en) | 2021-08-24 |
Family
ID=77355493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022472075.3U Expired - Fee Related CN214036521U (en) | 2020-10-31 | 2020-10-31 | Retainer for high-speed bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214036521U (en) |
-
2020
- 2020-10-31 CN CN202022472075.3U patent/CN214036521U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210824 |