CN203068025U - Central slewing joint provided with bearing additionally - Google Patents
Central slewing joint provided with bearing additionally Download PDFInfo
- Publication number
- CN203068025U CN203068025U CN 201220745159 CN201220745159U CN203068025U CN 203068025 U CN203068025 U CN 203068025U CN 201220745159 CN201220745159 CN 201220745159 CN 201220745159 U CN201220745159 U CN 201220745159U CN 203068025 U CN203068025 U CN 203068025U
- Authority
- CN
- China
- Prior art keywords
- rotation
- solid
- turning axle
- slewing
- swivel coupling
- 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 a bearing additionally. The central slewing joint provided with the 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 one or multiple rolling bearings (9) are arranged between the slewing shaft (2) and the slewing body (1). According to the central slewing joint provided with the bearing additionally, the rolling bearing is additionally arranged between the slewing shaft and the slewing body, so that the axial supporting performance and the radial supporting performance of the central slewing joint are improved, and the central slewing joint can adapt to high-speed or low-speed rotational motion and has a quite wide application range and quite high quality.
Description
Technical field
The utility model relates to a kind of bearing central authorities swivel coupling that adds, and is mainly used in petrochemical industry, mining machinery or construction machinery industry, is the link that connects standing part and rotating part in the whole hydraulic system, 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.Yet swivel coupling in the past is when turning round, and swivel coupling is axially relatively poor with support performance radially, can't use when high low speed rotation, causes its application area narrower.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, provide a kind of and can rotate at a high speed, axially and support performance radially better, application area wider add bearing central authorities swivel coupling.
The purpose of this utility model is achieved in that
The utility model adds 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 one or more rolling bearings 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.
In the annular groove between described solid of rotation and the turning axle dust ring is housed.
In the annular groove between described solid of rotation and the turning axle rotating seal ring is housed.
O type circle 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 bearing central authorities swivel coupling that adds is by having added rolling bearing between solid of rotation and turning axle, improved the axial and support performance radially of swivel coupling, make swivel coupling can adapt to rotatablely moving of high speed or low speed, application area is wider, and quality is higher.
Description of drawings
Fig. 1 adds the Facad structure schematic representation of 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, dust ring 6, rotating seal ring 7, O type circle 8, rolling bearing 9.
Embodiment
Referring to Fig. 1, the utility model relates to a kind of 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 2.
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, dust ring 6, rotating seal ring 7 and O type circle 8 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 one or more rolling bearings 9 between described turning axle 2 and the solid of rotation 1, described rolling bearing 9 is used for improving swivel coupling axially and support performance radially, make swivel coupling can adapt to rotatablely moving of high speed or low speed, application area is wider, and quality is higher.
Claims (6)
1. one kind adds 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 one or more rolling bearings (9) between described turning axle (2) and the solid of rotation (1).
2. a kind of 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 bearing central authorities swivel coupling that adds according to claim 1 and 2, 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 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) dust ring (6) is housed.
5. a kind of 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 (7) is housed.
6. a kind of 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 (8) is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220745159 CN203068025U (en) | 2012-12-29 | 2012-12-29 | Central slewing joint provided with bearing additionally |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220745159 CN203068025U (en) | 2012-12-29 | 2012-12-29 | Central slewing joint provided with bearing additionally |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203068025U true CN203068025U (en) | 2013-07-17 |
Family
ID=48766806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220745159 Expired - Lifetime CN203068025U (en) | 2012-12-29 | 2012-12-29 | Central slewing joint provided with bearing additionally |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203068025U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913138A (en) * | 2015-03-31 | 2015-09-16 | 三一重机有限公司 | Central rotary connector for multi-channel small machine and working principle of central rotary connector |
| CN111207256A (en) * | 2020-01-15 | 2020-05-29 | 江苏新瑞重工科技有限公司 | High-rotating-speed gas-liquid rotating distribution structure for rotary table |
-
2012
- 2012-12-29 CN CN 201220745159 patent/CN203068025U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913138A (en) * | 2015-03-31 | 2015-09-16 | 三一重机有限公司 | Central rotary connector for multi-channel small machine and working principle of central rotary connector |
| CN104913138B (en) * | 2015-03-31 | 2018-01-05 | 三一重机有限公司 | A kind of multichannel small-sized machine center-rotary joint and its operation principle |
| CN111207256A (en) * | 2020-01-15 | 2020-05-29 | 江苏新瑞重工科技有限公司 | High-rotating-speed gas-liquid rotating distribution structure for rotary table |
| CN111207256B (en) * | 2020-01-15 | 2021-07-20 | 江苏新瑞重工科技有限公司 | High-rotating-speed gas-liquid rotating distribution structure for rotary table |
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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 |
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. |
|
| CP01 | Change in the name or title 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. |
|
| CP02 | Change in the address of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130717 |
|
| CX01 | Expiry of patent term |