CN207961280U - A kind of half retainer of angular contact ball bearing radial bore circular arc pocket hole - Google Patents
A kind of half retainer of angular contact ball bearing radial bore circular arc pocket hole Download PDFInfo
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- CN207961280U CN207961280U CN201721844428.XU CN201721844428U CN207961280U CN 207961280 U CN207961280 U CN 207961280U CN 201721844428 U CN201721844428 U CN 201721844428U CN 207961280 U CN207961280 U CN 207961280U
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- retainer
- pocket hole
- circular arc
- angular contact
- ball bearing
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Abstract
The utility model is related to half retainers of angular contact ball bearing radial bore circular arc pocket hole.Retainer is half open retainer structure of side, and the design of ball-and-socket pocket hole is bored in the pocket hole of retainer using radial so that drilling is in about 80% circle；The contact point of retainer and steel ball is in the middle top of pocket hole circular arc.The improved retainer of the utility model is to radial load（Retainer is hit to interact with steel ball when generating play and generate）Power is unloaded into row buffering, and is retainer loss of weight（Reduce elliptical gear power）Two aspects are set about, and the service life of bearing is made to be obviously prolonged.
Description
Technical field
The utility model belongs to bearing arrangement technical field, and in particular to one kind is justified for angular contact ball bearing radial bore
The improvement of half retainer of arc pocket hole.
Background technology
7088M/DF bearings are applied to steel mill's milling equipment, and bearing base regime is that rotating speed is higher, the impact suffered by bearing
It is big compared with load.Retainer uses oblique retainer, cone nest pocket hole, steel ball guiding in former scheme.Machine was less than 1 month on the bearing, just
There are more set bearings to be damaged, shows as retainer and generate prodigious play to bearing is radial unilateral, about 3~5mm, firmly
Clamping rolling element prevents it from rotating, and from retainer internal diameter side, and discovery has the copper scale squeezed out from pocket hole.The bearing is kept
Frame and other parts have carried out 100% inspection before manufacture, and design meets drawing requirement.Most this is solved through thinking afterwards
Problem adapts to field working conditions, needs to make improvement to retainer structure.
Invention content
The utility model mainly solving the technical problems that the retainer structure of diagonal contact ball bearing improved from
And it effectively prevent retainer to the radial unilateral generation play of bearing.
The utility model is that technical solution used by solving its technical problem is to provide a kind of angular contact ball bearing radial direction
Drill half retainer of circular arc pocket hole.Retainer is half open retainer structure of side, and is revealed all the details as circular arc nest shape；Retainer
With the contact point of steel ball pocket hole segmental arc busbar upper semisection.
Preferably, retainer pocket hole circumference is in 80% circle
The beneficial effects of the utility model：
The improved retainer of the utility model to radial load (retainer be hit generate play when with steel ball interact
Generate) power is unloaded into row buffering, and set about for two aspects of retainer loss of weight (reducing elliptical gear power), keep the service life of bearing bright
It is aobvious to extend.
Material cost is greatly reduced, each retainer saves copper 6kg or so, and it is public that 2 retainers of a set of bearing save 12
Jin copper, the economic benefit brought are considerable.
Compared to original oblique retainer, it is easier to processing and detection.
It is open that retainer, which has side, and bearing lubrication performance makes moderate progress.
Description of the drawings
Fig. 1 is a kind of angular contact ball bearing bearing assembling.
Fig. 2 is a kind of angular contact ball bearing cage part drawing.
Specific implementation mode
Below in conjunction with attached drawing and specific embodiment, the utility model is described in further detail.
As shown in Figure 1, being angular contact ball bearing bearing assembling.Including outer ring 01, inner ring 02, steel ball 04 and retainer
06。
As shown in Fig. 2, being angular contact ball bearing cage part drawing.Retainer 06 is half open retainer knot of side
The design of ball-and-socket pocket hole is bored in structure, the pocket hole of retainer 06 using radial so that pocket hole in 80% circle, pocket hole be pierced by outer diameter, and
It reveals all the details as circular arc nest shape；Upper semisection of the design contact point of retainer 06 and steel ball 04 in pocket hole segmental arc busbar.
All sizes of original bearing ring, steel ball size (Dw) and number, steel ball group center-diameter (Dpw) are constant, keep
06 pawl end of frame takes smaller internal diameter, to ensure inclusion quantity of the pocket hole to rolling element；The bottom end internal diameter of retainer 06 is larger, is to make
Retainer 06 and 02 outer diameter of inner ring keep gap, to ensure that rolling element 04 guides；Pocket hole is pierced by outer diameter, is revealed all the details as circular arc nest.
The key dimension of retainer 06 can be calculated by following formula and (can do appropriate rounding)：
1. retainer outer diameter：
Dc=Dpw+0.35*Dw
2. retainer internal diameter (bottom side)：
Dc=Dpw-0.4*Dw
3. retainer internal diameter (pawl end)：
Dc1=Dpw-0.58Dw
4. retainer base thickness：
Bc=0.15*Dw
5. retainer overall width：
Bc=bc+0.87*Dw
6. retainer bottom side inner diameter cylindrical face width：
Bdc=bc+0.15*Dw
7. the transition slope angle of dc and dc1 takes 20 °
8. pocket bore dia：
Dp=Dw+ ε
ε is that standard scale value is pressed in pocket hole with steel ball design gaps
9. arc radius of revealing all the details：
Rc=25* (Dp-0.98Dw)
10. inspection center's size：
DJ=Dpw+Dw- ε
Remaining size value can refer to angular contact ball bearing integral cage and carry out value.
By the improvement to the retainer, bearing actual life, which obtains, greatly improves, while significantly reducing material
Expect cost.The successful experience of current technological innovation, for the angular contact ball bearing reference of other models.
Claims (2)
1. a kind of half retainer of angular contact ball bearing radial bore circular arc pocket hole, which is characterized in that retainer is that side is open,
And it reveals all the details as circular arc nest shape；Upper semisection of the design contact point of retainer and steel ball in pocket hole segmental arc busbar.
2. a kind of half retainer of angular contact ball bearing radial bore circular arc pocket hole as described in claim 1, which is characterized in that institute
The retainer pocket hole circumference stated is in 80% circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721844428.XU CN207961280U (en) | 2017-12-26 | 2017-12-26 | A kind of half retainer of angular contact ball bearing radial bore circular arc pocket hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721844428.XU CN207961280U (en) | 2017-12-26 | 2017-12-26 | A kind of half retainer of angular contact ball bearing radial bore circular arc pocket hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207961280U true CN207961280U (en) | 2018-10-12 |
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ID=63728374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721844428.XU Active CN207961280U (en) | 2017-12-26 | 2017-12-26 | A kind of half retainer of angular contact ball bearing radial bore circular arc pocket hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207961280U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939838A (en) * | 2017-12-26 | 2018-04-20 | 瓦房店轴承集团有限责任公司 | Half retainer of angular contact ball bearing radial bore circular arc pocket hole |
-
2017
- 2017-12-26 CN CN201721844428.XU patent/CN207961280U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939838A (en) * | 2017-12-26 | 2018-04-20 | 瓦房店轴承集团有限责任公司 | Half retainer of angular contact ball bearing radial bore circular arc pocket hole |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200514 Address after: 116300 No. 1, North Tongji Street, Zhuhua Street, Wafangdian City, Dalian City, Liaoning Province Patentee after: WAFANGDIAN BEARING GROUP SPECIAL BEARING Co.,Ltd. Address before: 116300 No. 1, Section 1, North Masonic Street, Dalian, Liaoning, Wafangdian City Co-patentee before: WAFANGDIAN BEARING GROUP NATIONAL BEARING ENGINEERING TECHNOLOGY RESEARCH CENTER Co.,Ltd. Patentee before: WAFANGDIAN BEARING GROUP Co.,Ltd. |