CN201891741U - Oil groove structure of four-point contact ball slewing bearing - Google Patents
Oil groove structure of four-point contact ball slewing bearing Download PDFInfo
- Publication number
- CN201891741U CN201891741U CN2010206604286U CN201020660428U CN201891741U CN 201891741 U CN201891741 U CN 201891741U CN 2010206604286 U CN2010206604286 U CN 2010206604286U CN 201020660428 U CN201020660428 U CN 201020660428U CN 201891741 U CN201891741 U CN 201891741U
- Authority
- CN
- China
- Prior art keywords
- oil duct
- point contact
- contact ball
- oil groove
- annular channel
- 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 an oil groove structure of a four-point contact ball slewing bearing. The slewing bearing is provided with a ring-shaped channel. The bottom of the ring-shaped channel is provided with an oil groove. The cross section of the oil groove takes a shape of an arc with the radius of R. The joint of the oil groove and the ring-shaped channel is in an arc transition. The oil groove structure of the four-point contact ball slewing bearing cannot cause stress concentration and is difficult to generate quenching cracks.
Description
Technical field
The utility model relates to a kind of oil duct structure of four-point contact ball class pivoting support.
Background technique
The oil duct of existing four-point contact ball class pivoting support, its curvature is generally got R4 ~ R6, and the degree of depth is darker, and oil duct and raceway groove chamfering are only done the processing of falling the wedge angle.In the process of processing, cause stress to concentrate easily, so in the channel surface quenching process, be easy to produce quenching crack.
Summary of the invention
The purpose of this utility model is to provide a kind of stress that can not cause to concentrate, and is difficult for the oil duct structure of the four-point contact ball class pivoting support of generation quenching crack.
The utility model realizes that the technological scheme of above-mentioned purpose is, a kind of oil duct structure of four-point contact ball class pivoting support, pivoting support has annular channel, the annular channel bottom has oil duct, its improvement is: the cross section of oil duct is that radius is the circular arc of R, and the joint of described oil duct and annular channel is an arc transition.
The degree of depth of described oil duct is not more than 3mm.
The circular arc curvature of the cross section of described oil duct is 0.4 times of annular channel curvature and rounds.
The radius of arc of described oil duct and annular channel arc transition is 2mm or 3mm.
The utility model is because the cross section of oil duct is that radius is the circular arc of R, and the joint of oil duct and annular channel is arc transition, therefore can not cause stress to concentrate, so be difficult for the generation quenching crack in annular channel surface hardening operation.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is done and to be described in further detail.
As shown in Figure 1, a kind of oil duct structure of four-point contact ball class pivoting support, pivoting support 2 has annular channel, and the annular channel bottom has oil duct, and the cross section of oil duct 1 is that radius is the circular arc of R, and described oil duct 1 is an arc transition with the joint of annular channel.
The degree of depth of described oil duct 1 is not more than 3mm.
The circular arc curvature of the cross section of described oil duct 1 is 0.4 times of annular channel curvature and rounds.
Described oil duct 1 is 2mm or 3mm with the radius of arc of annular channel arc transition.
Claims (4)
1. the oil duct structure of a four-point contact ball class pivoting support, pivoting support (2) has annular channel, the annular channel bottom has oil duct, and it is characterized in that: the cross section of oil duct (1) is that radius is the circular arc of R, and described oil duct (1) is an arc transition with the joint of annular channel.
2. the oil duct structure of four-point contact ball class pivoting support according to claim 1 is characterized in that: the degree of depth of described oil duct (1) is not more than 3mm.
3. the oil duct structure of four-point contact ball class pivoting support according to claim 1 is characterized in that: the circular arc curvature of the cross section of described oil duct (1) is 0.4 times of annular channel curvature and rounds.
4. the oil duct structure of four-point contact ball class pivoting support according to claim 1 is characterized in that: described oil duct (1) is 2mm or 3mm with the radius of arc of annular channel arc transition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206604286U CN201891741U (en) | 2010-12-15 | 2010-12-15 | Oil groove structure of four-point contact ball slewing bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206604286U CN201891741U (en) | 2010-12-15 | 2010-12-15 | Oil groove structure of four-point contact ball slewing bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201891741U true CN201891741U (en) | 2011-07-06 |
Family
ID=44221218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206604286U Expired - Fee Related CN201891741U (en) | 2010-12-15 | 2010-12-15 | Oil groove structure of four-point contact ball slewing bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201891741U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2495287C1 (en) * | 2012-01-25 | 2013-10-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Саратовский государственный технический университет имени Гагарина Ю.А." (СГТУ имени Гагарина Ю.А.) | Method for increasing oil carrying capacity of ball bearing |
-
2010
- 2010-12-15 CN CN2010206604286U patent/CN201891741U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2495287C1 (en) * | 2012-01-25 | 2013-10-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Саратовский государственный технический университет имени Гагарина Ю.А." (СГТУ имени Гагарина Ю.А.) | Method for increasing oil carrying capacity of ball bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110706 Termination date: 20131215 |