CN206290575U - A kind of bearing of long service life - Google Patents
A kind of bearing of long service life Download PDFInfo
- Publication number
- CN206290575U CN206290575U CN201621327326.6U CN201621327326U CN206290575U CN 206290575 U CN206290575 U CN 206290575U CN 201621327326 U CN201621327326 U CN 201621327326U CN 206290575 U CN206290575 U CN 206290575U
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- CN
- China
- Prior art keywords
- section
- raceway
- rear end
- extension
- bearing
- 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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Abstract
The utility model discloses a kind of bearing of long service life, including outer ring, inner ring, retainer, steel ball and the dust cap being respectively arranged on inside and outside circle, outer raceway is installed on outer ring, interior raceway is installed on inner ring, the radial section of the interior raceway and outer raceway includes two opposite inclined-planes, and the steel ball is tangent with above-mentioned each inclined-plane；The dust cap is in annular, its cross section is general " t " shape, including integrally formed Access Division and extension, the front and rear end of the inner ring and outer ring is provided with the buckling groove coordinated with above-mentioned Access Division, and the extension is stretched into the space between inside and outside circle.It is two-point contact between steel ball and inclined-plane, not only causes that contact surface diminishes, frictional force when reduction is rolled, and the stress of steel ball is changed, overcome steel ball excessive problem of centrifugal force in high speed scroll.In addition, the Access Division of dust cap and extension can play good sealing effectiveness, the problem that lubricating oil leaks is avoided that.
Description
Technical field
The utility model is related to a kind of bearing, particularly relates to a kind of structure novelty, the novel bearing of long service life.
Background technology
Existing bearing generally all includes inner ring, outer ring retainer, rolling element (steel ball) and dust cap, on inner ring outside
Interior raceway is provided with, outer ring inner side is provided with outer raceway, and rolling element is installed on retainer and integral installation is in interior raceway and outer raceway
Between.The shape of the interior rolling of this bearing and the radial section of outer raceway is often semicircular, steel ball and inside and outside raceway ball
Face contacts, and the structural bearing capacity is poor, and when load increases, contact stress increases so as to increase the possibility of bearing fatigue peeling,
Simultaneously because contact stress increase causes the heating of bearing, causing the service life of bearing reduces.Additionally, the oil-collecting effect of the bearing
It is really poor, generally require separately to set oil filler point on outer ring or inner ring, and irregular carry out oiling to reach good lubrication
Effect.This can not only increase production cost, and setting oil filler point on outer ring or inner ring itself is also unfavorable for rolling element
Roll.
In addition, dust cap is generally fixedly installed in the space between the outer wall of inner ring and the inwall of outer ring, dust cap with
Space generally is left between inside and outside circle, can so facilitate oiling, but this may result in the foreign matters such as dust and enters in bearing
Portion, causes bearing normally to operate, and influence the service life of bearing.Due to existing between dust cap and inner ring and outer ring
Gap, therefore existing dust cap can cause the problem that the lubricating oil of Bearing inner leaks.In addition, in oiling, lubricating oil is not
Bearing inner can be fully entered, often some absorption not only becomes easily infected by dust, and cause pole in the outside of bearing
The earth is wasted.
In addition, for the ease of the high-speed rotation of bearing, usual outer ring is smaller with the fit tolerance of bearing block, therefore
Using, through often there is outer ring and bearing block skidding, this phenomenon can damage bearing and bearing block after a period of time, serious drop
Underneath drive performance.
Utility model content
The utility model provides a kind of improved bearing of structure, and its main purpose is the knot that customer service prior art is present
The defect that structure bearing capacity is poor, lubricating oil easily leaks and outer ring and bearing block easily skid.
The technical solution of the utility model is as follows：
A kind of bearing of long service life, including outer ring, inner ring, retainer, steel ball and it is respectively arranged in inside and outside circle
Two dust caps on front and rear end, are provided with outer raceway on the inwall of the outer ring, be provided with the outer wall of the inner ring and matched somebody with somebody
The radial section of the interior raceway for closing, the interior raceway and outer raceway includes two opposite inclined-planes, and the steel ball is each with above-mentioned
Inclined-plane is tangent；The dust cap is in annular, and its cross section is general " t " shape, including integrally formed Access Division and extension
The front and rear end of portion, the inner ring and outer ring be provided with above-mentioned Access Division coordinate buckling groove, the extension stretch into it is interior,
In space between outer ring, and the inwall of extension is resisted against the outer wall of inner ring, and the outer wall of extension is resisted against the inwall of outer ring.
Further, the angle between described two opposite inclined-planes is 85 ° -135 °.
Further, the angle between described two opposite inclined-planes is 120 °.Bearing is reduced to be rubbed in high-speed cruising damage
Consumption and heating, further improve bearing service life.
Further, the radial section of the interior raceway and outer raceway is triangle.
Further, the radial section of the interior raceway and outer raceway is trapezoidal.
Further, be additionally provided with oil injecting part on the dust cap, the oil injecting part include ball, spring, banking stop with
And through Access Division and the oil filler point of entering department, the round ball and spring is installed in oil filler point, and the banking stop is installed on
On the front end face of Access Division, and its middle part offers spacing hole, and the front end of the ball is resisted against in spacing hole, and rear end is resisted against
The front end of spring, the rear end of the spring is located in extension.Special oil injecting part is additionally provided with dust cap of the present utility model,
Lubricating oil fully enters Bearing inner by oil filler point, can substantially reduce the loss of lubricating oil.
Further, the oil filler point include small-bore section, large aperture section and supporting part, small-bore section front end with
Spacing hole is connected, and the front end of rear end and the large aperture section of small-bore section is connected, and the rear end of large aperture section is through after entering department
End face, the supporting part is integrally formed with entering department, and support zone is at the rear port of large aperture section and less than large aperture section
Diameter, the diameter of ball is slightly less than the diameter of small-bore section, and the rear end of the spring is resisted against on supporting part.
Further, four raised raceways of the circular arc prominent to outer ring inner side are evenly distributed with the outer raceway
Portion, four raised groove portions are connected with each other, and depression groove portion, and depression groove portion and projection are formed between adjacent protrusion groove portion
The maximum radius difference of groove portion is 5 μm -30 μm.By the setting of raised groove portion, steel ball can be produced gently in raceway to outer ring
Microshock, the mild impulse is applied to the mating surface of bearing block and outer ring by outer ring, equivalent to preload is increased, is prevented effectively from
Skidding.
From above-mentioned to description of the present utility model, compared to the prior art, the utility model has the following advantages that：Steel
It is two-point contact between ball and inclined-plane, not only causes that contact surface diminishes, and reduces frictional force when rolling, and change steel ball
Stress, overcomes steel ball excessive problem of centrifugal force in high speed scroll.In addition, the Access Division of dust cap and extension can rise
To good sealing effectiveness, the problem that lubricating oil leaks is avoided that.
Brief description of the drawings
Fig. 1 is the cross-sectional view of bearing.
Fig. 2 is the enlarged diagram of part A in Fig. 1.
Fig. 3 is the decomposing schematic representation of bearing.
Fig. 4 is the structural representation of outer ring.
Specific embodiment
Specific embodiment of the present utility model is illustrated with reference to the accompanying drawings.
Embodiment one
Referring concurrently to Fig. 1 and Fig. 2, a kind of bearing of long service life, it includes inner ring 1, outer ring 2, retainer 3, steel ball 4
And two dust caps 5 on the front and rear end of inside and outside circle 1,2 are respectively arranged in, the steel ball 4 is uniformly installed on the guarantor
Hold on frame 3.Outer raceway 21 is installed on the inwall of the outer ring 2, the interior raceway of cooperation is installed on the outer wall of the inner ring 1
11, the radial section of the interior raceway 11 and outer raceway 21 is (in addition also dependent on needs design in echelon) triangular in shape, and
All it is made up of two opposite inclined-planes 102, the angle between two opposite inclined-planes 102 is 120 °, the steel ball 4 and above-mentioned each inclined-plane
102 is tangent, i.e., for point is contacted between steel ball 4 and inclined-plane 102 so that contact surface diminishes, reduce friction when steel ball 4 is rolled
Power.Referring concurrently to Fig. 4, four raised groove portions 210 prominent to the inner side of outer ring 2, four are evenly distributed with the outer raceway
Raised groove portion 210 is connected with each other, and raised groove portion 210 is in circular arc, the radius big at both ends and small in middle in its relative axle center,
Depression groove portion 220, and raised groove portion 210 and depression groove portion 220 are formed between adjacent protrusion groove portion 210 apart from axle center
Maximum radius difference be 5 μm -30 μm, do not interfere with the rolling of steel ball 4.
Referring concurrently to Fig. 3, the dust cap 5 is in annular, and its cross section is general " t " shape, including integrally formed card
The front and rear end of socket part 51 and extension 52, the inner ring 1 and outer ring 2 is provided with the buckling groove coordinated with above-mentioned Access Division 51
12, the extension 52 is stretched into the space between inside and outside circle 1,2, and the inwall of extension 52 is resisted against the outer wall of inner ring 1,
The outer wall of extension 52 is resisted against the inwall of outer ring 2.In order to prevent dust cap 5 from dropping, generally set on the inner face of extension 52
There is lug boss, the inside and outside circle 1,2 is provided with corresponding groove.
Be additionally provided with oil injecting part on the dust cap 5, the oil injecting part include ball 6, spring 7, banking stop 8 and through
The oil filler point 9 of Access Division 51 and extension 52, the ball 6 and spring 7 are installed in oil filler point 9, and the banking stop 8 is installed on
On the front end face of Access Division 51, and its middle part offers spacing hole, and the front end of the ball 6 is resisted against in spacing hole, spacing hole
The side abutted with ball 6 forms the depression of circular arc, and the rear end of ball 6 is resisted against the front end of spring 7, after the spring 7
End is fixed in extension 52.
The oil filler point 9 includes small-bore section 91, large aperture section 92 and the supporting part 93 for the rear end of support spring 7,
The front end of small-bore section 91 is connected with spacing hole, and the rear end of small-bore section 91 is connected with the front end of large aperture section 92, large aperture section
Rear end face of 92 rear end through extension 52.The supporting part 93 is integrally formed with extension 52, and supporting part 93 is located at big
At the rear port of aperture section 92 and less than the diameter of large aperture section 92, the diameter of ball 6 is slightly less than the diameter of small-bore section 91.It is flat
When, spring 7 withstands in spacing hole ball 6, and when oiling is needed, oil filling mechanism heads into enlarged diameter section 92 ball 6, and right
Bearing inner carries out oiling.Lubricating oil fully enters Bearing inner by oil filler point 9, can substantially reduce the loss of lubricating oil.
Specific embodiment of the present utility model is above are only, but design concept of the present utility model is not limited thereto,
All changes for carrying out unsubstantiality to the utility model using this design, belong to invade the row of the utility model protection domain
For.
Claims (8)
1. a kind of bearing of long service life, including outer ring, inner ring, retainer, steel ball and inside and outside circle is respectively arranged in
Two dust caps on front and rear end, are provided with outer raceway on the inwall of the outer ring, be provided with the outer wall of the inner ring and matched somebody with somebody
The interior raceway for closing, it is characterised in that：The radial section of the interior raceway and outer raceway includes two opposite inclined-planes, the steel
Ball is tangent with above-mentioned each inclined-plane；The dust cap is in annular, and its cross section is general " t " shape, including integrally formed card
The front and rear end of socket part and extension, the inner ring and outer ring is provided with the buckling groove coordinated with above-mentioned Access Division, the extension
Portion is stretched into the space between inside and outside circle, and the inwall of extension is resisted against the outer wall of inner ring, and the outer wall of extension is resisted against outer
The inwall of circle.
2. bearing according to claim 1, it is characterised in that：Angle between the two opposite inclined-plane is 85 ° -135 °.
3. bearing according to claim 2, it is characterised in that：Angle between the two opposite inclined-plane is 120 °.
4. bearing according to claim 1, it is characterised in that：The radial section of the interior raceway and outer raceway is triangle
Shape.
5. bearing according to claim 1, it is characterised in that：The radial section of the interior raceway and outer raceway is ladder
Shape.
6. bearing according to claim 1, it is characterised in that：Oil injecting part, the oil injecting part are additionally provided with the dust cap
Including ball, spring, banking stop and through Access Division and the oil filler point of entering department, the round ball and spring is installed on oiling
In hole, the banking stop is installed on the front end face of Access Division, and its middle part offers spacing hole, the front end of the ball against
In in spacing hole, rear end is resisted against the front end of spring, and the rear end of the spring is located in extension.
7. bearing according to claim 6, it is characterised in that：The oil filler point include small-bore section, large aperture section and
Supporting part, the front end of small-bore section is connected with spacing hole, and the rear end of small-bore section is connected with the front end of large aperture section, large aperture section
Rear end through entering department rear end face, the supporting part is integrally formed with entering department, and support zone is in after the section of large aperture
Port and less than the diameter of large aperture section, the diameter of ball is slightly less than the diameter of small-bore section, the rear end of the spring against
In on supporting part.
8. according to any described bearing of claim 1 to 7, it is characterised in that：Be evenly distributed with the outer raceway four to
The raised groove portion of the prominent circular arc in outer ring inner side, four raised groove portions are connected with each other, shape between adjacent protrusion groove portion
Be in depression groove portion, and the maximum radius difference of depression groove portion and raised groove portion is 5 μm -30 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621327326.6U CN206290575U (en) | 2016-12-06 | 2016-12-06 | A kind of bearing of long service life |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621327326.6U CN206290575U (en) | 2016-12-06 | 2016-12-06 | A kind of bearing of long service life |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206290575U true CN206290575U (en) | 2017-06-30 |
Family
ID=59096274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621327326.6U Expired - Fee Related CN206290575U (en) | 2016-12-06 | 2016-12-06 | A kind of bearing of long service life |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206290575U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112112887A (en) * | 2020-09-08 | 2020-12-22 | 安徽千禧精密轴承制造有限公司 | Turntable bearing |
| CN112682420A (en) * | 2020-12-03 | 2021-04-20 | 宁波美亚特精密传动部件有限公司 | Resistance to compression type bearing |
| CN113464556A (en) * | 2021-06-30 | 2021-10-01 | 人本股份有限公司 | Deep groove ball bearing with retainer |
| CN113967669A (en) * | 2021-12-09 | 2022-01-25 | 中北大学 | Magnesium alloy bar forward extrusion die capable of automatically slowly releasing lubrication |
-
2016
- 2016-12-06 CN CN201621327326.6U patent/CN206290575U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112112887A (en) * | 2020-09-08 | 2020-12-22 | 安徽千禧精密轴承制造有限公司 | Turntable bearing |
| CN112682420A (en) * | 2020-12-03 | 2021-04-20 | 宁波美亚特精密传动部件有限公司 | Resistance to compression type bearing |
| CN112682420B (en) * | 2020-12-03 | 2022-05-20 | 宁波美亚特精密传动部件有限公司 | Compression-resistant bearing |
| CN113464556A (en) * | 2021-06-30 | 2021-10-01 | 人本股份有限公司 | Deep groove ball bearing with retainer |
| CN113967669A (en) * | 2021-12-09 | 2022-01-25 | 中北大学 | Magnesium alloy bar forward extrusion die capable of automatically slowly releasing lubrication |
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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: 20170630 Termination date: 20171206 |