CN203068024U - Central slewing joint provided with oilless bearing additionally - Google Patents
Central slewing joint provided with oilless bearing additionally Download PDFInfo
- Publication number
- CN203068024U CN203068024U CN 201220744139 CN201220744139U CN203068024U CN 203068024 U CN203068024 U CN 203068024U CN 201220744139 CN201220744139 CN 201220744139 CN 201220744139 U CN201220744139 U CN 201220744139U CN 203068024 U CN203068024 U CN 203068024U
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- CN
- China
- Prior art keywords
- rotation
- oilless bearing
- solid
- turning axle
- slewing
- 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 - Lifetime
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Abstract
The utility model relates to a central slewing joint provided with an oilless bearing additionally. The central slewing joint provided with the oilless bearing additionally is characterized by comprising a slewing body (1) and a slewing shaft (2). A main oil hole (3) and a lower-pressure oil hole (4) are formed in the slewing shaft (2), and the oilless bearing (10) is arranged between the slewing shaft (2) and the slewing body (1). According to the central slewing joint provided with the oilless bearing additionally, the oilless bearing is additionally arranged between the slewing shaft and the slewing body, so that radial positioning of the central slewing joint can be more accurate, and the central slewing joint can adapt to high-speed or low-speed rotational motion and has a quite wide application range.
Description
Technical field
The utility model relates to a kind of oilless bearing central authorities swivel coupling that adds, and is mainly used in petrochemical industry, mining machinery or construction machinery industry, belongs to technical field of engineering machinery.
Background technique
In the hydraulic system of heavy duty engineering machinery, it turns round and fixed component relatively, controls rotating part and the fluid passage of standing part and being connected of circuit by swivel coupling usually.Swivel coupling is made up of solid of rotation, turning axle and lid etc., and during use, the revolution lower bolster of solid of rotation and engineering machinery is fixed, and the mounting plate on the turning axle supports with the revolution on the revolution upper mounting plate and is connected.
Swivel coupling is when being rotated, can make the contacted part of solid of rotation and turning axle produce wearing and tearing, swivel coupling in the past all adds wear-resistant ring in the annular groove between solid of rotation and turning axle to be supported, but swivel coupling is when high low speed rotation, because radial location is not too accurate, cause the running accuracy of swivel coupling relatively poor, be not suitable for doing rotation at a high speed.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of and realizes that rotation, radial location at a high speed add oilless bearing central authorities swivel coupling accurately.
The purpose of this utility model is achieved in that
The utility model adds oilless bearing central authorities swivel coupling, comprises solid of rotation and turning axle, has main oil-hole and low pressure oilhole on the described turning axle, is provided with oilless bearing between described turning axle and the solid of rotation.
Insert in the solid of rotation from the top axial of solid of rotation the lower end of described turning axle, and the upper end of turning axle is exposed to solid of rotation.
Upper end or the lower end of described solid of rotation are provided with end cap, and described end cap is fixed on the solid of rotation by screw.
The upper end of described main oil-hole or port, lower end are provided with plug.
O type circle I is housed in the annular groove between described solid of rotation and the turning axle.
In the annular groove between described solid of rotation and the turning axle rotating seal ring is housed.
O type circle II is housed in the annular groove between described solid of rotation and the turning axle.
Compared with prior art, the beneficial effects of the utility model are:
This oilless bearing central authorities swivel coupling that adds makes that by added oilless bearing between solid of rotation and turning axle the swivel coupling radial location is more accurate, makes swivel coupling can adapt to rotatablely moving of high speed or low speed, and application area is wider.
Description of drawings
Fig. 1 adds the Facad structure schematic representation of oilless bearing central authorities swivel coupling for the utility model.
Wherein: solid of rotation 1, turning axle 2, main oil-hole 3, low pressure oilhole 4, end cap 5, plug 6, O type circle I 7, rotating seal ring 8, O type circle II 9, oilless bearing 10.
Embodiment
Referring to Fig. 1, the utility model relates to a kind of oilless bearing central authorities swivel coupling that adds, comprise solid of rotation 1 and turning axle 2, insert in the solid of rotation 1 from the top axial of solid of rotation 1 lower end of described turning axle 2, and the upper end of turning axle 2 is exposed to solid of rotation 1, has main oil-hole 3 and low pressure oilhole 4 on the described turning axle 1.
The upper end of described solid of rotation 1 or lower end are provided with end cap 5, described end cap 5 is fixed on the solid of rotation 1 by screw, the upper end of described main oil-hole 3 or port, lower end are provided with plug 6, O type circle I 7, rotating seal ring 8 and O type circle II 9 are housed in the annular groove between described solid of rotation 1 and the turning axle 2, be used for the sealing between maintenance solid of rotation 1 and the turning axle 2, prevent draining.
Be provided with oilless bearing 10 between described turning axle 2 and the solid of rotation 1, can make swivel coupling can adapt to rotatablely moving of high speed or low speed so that the swivel coupling radial location is more accurate after described oilless bearing 10 adds, application area be wider.
Claims (7)
1. one kind adds oilless bearing central authorities swivel coupling, it is characterized in that: it comprises solid of rotation (1) and turning axle (2), have main oil-hole (3) and low pressure oilhole (4) on the described turning axle (2), be provided with oilless bearing (10) between described turning axle (2) and the solid of rotation (1).
2. a kind of oilless bearing central authorities swivel coupling that adds according to claim 1, it is characterized in that: insert in the solid of rotation (1) from the top axial of solid of rotation (1) lower end of described turning axle (2), and the upper end of turning axle (2) is exposed to solid of rotation (1).
3. a kind of oilless bearing central authorities swivel coupling that adds according to claim 1, it is characterized in that: the upper end of described solid of rotation (1) or lower end are provided with end cap (5), and described end cap (5) is fixed on the solid of rotation (1) by screw.
4. a kind of oilless bearing central authorities swivel coupling that adds according to claim 1, it is characterized in that: the upper end of described main oil-hole (3) or port, lower end are provided with plug (6).
5. a kind of oilless bearing central authorities swivel coupling that adds according to claim 1 is characterized in that: in the annular groove between described solid of rotation (1) and the turning axle (2) O type circle I (7) is housed.
6. a kind of oilless bearing central authorities swivel coupling that adds according to claim 1 is characterized in that: in the annular groove between described solid of rotation (1) and the turning axle (2) rotating seal ring (8) is housed.
7. a kind of oilless bearing central authorities swivel coupling that adds according to claim 1 is characterized in that: in the annular groove between described solid of rotation (1) and the turning axle (2) O type circle II (9) is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220744139 CN203068024U (en) | 2012-12-29 | 2012-12-29 | Central slewing joint provided with oilless bearing additionally |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220744139 CN203068024U (en) | 2012-12-29 | 2012-12-29 | Central slewing joint provided with oilless bearing additionally |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203068024U true CN203068024U (en) | 2013-07-17 |
Family
ID=48766805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220744139 Expired - Lifetime CN203068024U (en) | 2012-12-29 | 2012-12-29 | Central slewing joint provided with oilless bearing additionally |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203068024U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110500464A (en) * | 2019-08-21 | 2019-11-26 | 江苏长龄液压股份有限公司 | A kind of compact center-rotary joint |
-
2012
- 2012-12-29 CN CN 201220744139 patent/CN203068024U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110500464A (en) * | 2019-08-21 | 2019-11-26 | 江苏长龄液压股份有限公司 | A kind of compact center-rotary joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 214422 No. 1, Dayuan Road, Yun Ting Street industrial concentration area, Jiangyin, Wuxi, Jiangsu Patentee after: JIANGSU CHANGLING HYDRAULIC Co.,Ltd. Address before: 214422 No. 1, Dayuan Road, Yun Ting Street industrial concentration area, Jiangyin, Wuxi, Jiangsu Patentee before: JIANGYIN CHANGLING MACHINERY MANUFACTURING Co.,Ltd. |
|
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 214422 Yun Ting Road 885, Yun Ting Street, Jiangyin, Wuxi, Jiangsu Patentee after: JIANGSU CHANGLING HYDRAULIC Co.,Ltd. Address before: 214422 No. 1, Dayuan Road, Yun Ting Street industrial concentration area, Jiangyin, Wuxi, Jiangsu Patentee before: JIANGSU CHANGLING HYDRAULIC Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130717 |