CN203686439U - Rotary joint - Google Patents
Rotary joint Download PDFInfo
- Publication number
- CN203686439U CN203686439U CN201320742192.4U CN201320742192U CN203686439U CN 203686439 U CN203686439 U CN 203686439U CN 201320742192 U CN201320742192 U CN 201320742192U CN 203686439 U CN203686439 U CN 203686439U
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- Prior art keywords
- hole
- mounting hole
- running shaft
- circular groove
- rotating shaft
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Abstract
The utility model relates to a rotary joint which comprises a shell provided with a rotating shaft hole, and a rotating shaft rotatablely arranged in the rotating shaft hole in a sealing way, wherein the shell is provided with a radial joint mounting hole which passes through the wall of the rotating shaft hole; the peripheral surface of the rotating shaft is provided with a ring-shaped groove communicated with the radial joint mounting hole, and the position of the ring-shaped groove corresponds to that of the radial joint mounting hole; an opening at one end of the rotating shaft is communicated with a groove cavity of the ring-shaped groove, and another opening at the other end of the rotating shaft is arranged in an axial joint mounting hole on the end surface of the rotating shaft. The radial joint mounting hole is kept to be communicated with the axial joint mounting hole by the ring-shaped groove, and the ring-shaped groove is arranged on the rotating shaft; compared with the prior art processing a ring-shaped groove on a hole wall, the rotary joint is easier in processing of the rotating shaft and is capable of more easily guaranteeing the processing accuracy, so that the rotary joint can be conveniently processed, and the oil leakage can be reduced.
Description
Technical field
The utility model relates to a kind of swivel coupling.
Background technique
Swivel coupling is widely used in the equipment with relative rotation component, can realize being communicated with of fluid between static component and rotation component, the for example swivel coupling in long-spiral drilling machine, its structure as shown in Figure 1, comprise the housing 91 and the running shaft 96 of inserting in rotary shaft hole that are provided with rotary shaft hole, running shaft 96 is located vertically with housing 91 and is coordinated with the hole wall rotary seal of rotary shaft hole, for ensureing sealability, on the hole wall of rotary shaft hole, be also provided with annular seal groove 93, in annular seal groove 93, be embedded with O RunddichtringO 94.On the hole wall of rotary shaft hole, offer circular groove 92 and be provided with the quiet jiont treatment hole of running through hole wall, the aperture place in outside, quiet jiont treatment hole is connected with quiet joint 95, and the aperture of inner side communicates with the vallecular cavity of circular groove 92; Running shaft 96 is provided with the radial blind holes 97 of radially extending and the moving jiont treatment hole of extending vertically, at the bottom of the hole of radial blind holes 97, communicate with the bottom in moving jiont treatment hole, aperture communicates with the vallecular cavity of circular groove 92, the top in moving jiont treatment hole is connected with moving joint 98.When use, the bolt assembly that housing 91 relies on its bottom to arrange is fixed on corresponding fitting seat, and running shaft 96 is in the interior rotation of housing 91, and quiet jiont treatment hole maintains and being communicated with of quiet jiont treatment hole by radial blind holes 97 and circular groove 92.
But above-mentioned swivel coupling need to be offered circular groove 92 on the rotary shaft hole hole wall of housing 91, processing is inconvenient, machining accuracy is low, and the poor sealing performance between running shaft 96 and housing 91, easily causes Leakage.And housing 91 sizes are larger, generally adopt casting, therefore easily there is casting defect, offer after circular groove 92 and will weaken thickness and the intensity of housing 91, make housing 91 easily produce distortion, thereby make Leakage more outstanding.
Model utility content
The purpose of this utility model is to provide a kind of swivel coupling of being convenient to processing.
The technological scheme that a kind of swivel coupling of the utility model adopts is: a kind of swivel coupling, comprise that the housing and the rotary seal that are provided with rotary shaft hole are assemblied in the running shaft in rotary shaft hole, described housing is provided with the radial tab mounting hole that runs through rotary shaft hole hole wall, the outer circumferential face of described running shaft is provided with circular groove corresponding with described radial tab position of mounting hole and that be interconnected, and described running shaft is provided with the longitudinal joints mounting hole on the end face that an end opening communicates with the vallecular cavity of described circular groove, the other end opening is arranged on running shaft.
Width direction both sides in described circular groove on described running shaft are respectively equipped with annular seal groove, in described annular seal groove, are embedded with seal ring.
The annular seal groove of described circular groove width direction both sides is twice.
Described longitudinal joints mounting hole comprises the radial hole section that is arranged on described circular groove diapire and becomes the L shaped axial bore section being connected with radial hole section.
Described radial tab mounting hole is greater than the width of circular groove near the diameter of one end of running shaft.
Described radial tab mounting hole is shoulder hole, and its diameter near one end of running shaft is less than the diameter away from one end of running shaft.
A kind of swivel coupling of the utility model adopts technique scheme, the housing of swivel coupling is provided with the radial tab mounting hole that runs through rotary shaft hole hole wall, the outer circumferential face of described running shaft is provided with circular groove corresponding with described radial tab position of mounting hole and that be interconnected, and described running shaft is provided with the longitudinal joints mounting hole on the end face that an end opening communicates with the vallecular cavity of described circular groove, the other end opening is arranged on running shaft; Radial tab mounting hole and longitudinal joints mounting hole can keep being communicated with by circular groove, and this circular groove is arranged on running shaft, with process circular groove in prior art on hole wall compared with, processing to running shaft is easier, also more easily ensure machining accuracy, thereby facilitate the processing of swivel coupling, and can reduce leakage of oil.
Brief description of the drawings
Fig. 1 is the structural representation of a kind of swivel coupling in prior art.
The name that in figure, each reference character is corresponding is called: 91-housing, and 92-circular groove, 93-annular seal groove, 94-O RunddichtringO, the quiet joint of 95-, 96-running shaft, 97-radial blind holes, 98-moves joint.
Fig. 2 is the structural representation of an a kind of embodiment of swivel coupling in the utility model.
The name that in figure, each reference character is corresponding is called: 1-housing, 2-radial tab mounting hole, the quiet joint of 3-, 4-bolt assembly, 5-running shaft, 6-circular groove, 71-annular seal groove, 72-seal ring, 8-longitudinal joints mounting hole, 81-radial hole section, 82-axial bore section, 9-moves joint.
Embodiment
An embodiment of a kind of swivel coupling of the utility model as shown in Figure 2, is the swivel coupling using on a kind of long-spiral drilling machine, comprises that the housing 1 and the rotary seal that are provided with rotary shaft hole are assemblied in the running shaft 5 in rotary shaft hole.The bottom of housing 1 is provided with bolt assembly 4, for housing 1 is fixed to corresponding base.
Housing 1 is provided with the radial tab mounting hole 2 that runs through rotary shaft hole hole wall, this radial tab mounting hole 2 is shoulder hole, its diameter near one end of running shaft 5 is less than the diameter away from one end of running shaft 5, and corresponding quiet joint 3 is threaded connection and is arranged on radial tab mounting hole 2 one end away from running shaft 5.Adopt shoulder hole can avoid quiet joint 3 when mounted in precession rotary shaft hole and interfere with running shaft 5.
The outer circumferential face of running shaft 5 is provided with circular groove 6 corresponding with radial tab mounting hole 2 positions and that be interconnected, and running shaft 5 is provided with the longitudinal joints mounting hole 8 on the end face that an end opening communicates with the vallecular cavity of circular groove 6, the other end opening is arranged on running shaft 5.This longitudinal joints mounting hole 8 comprise radial hole section 81 on the diapire that is arranged on circular groove 6 with 81 one-tenth L shaped axial bore sections 82 that are connected of radial hole section, moving joint 9 is threaded connection the top open part that is arranged on axial bore section 82 accordingly.
For the ease of installing and ensureing fluid flow, radial tab mounting hole 2 is greater than the width of circular groove 6 near the diameter of one end of running shaft 5.
For realizing the conveying of different liquids, circular groove 6 is provided with along the twice of running shaft 5 axial spaces, and longitudinal joints mounting hole 8 is the corresponding twice that are provided with also.For ensureing sealing effect, both sides and centre in twice circular groove 6 on running shaft 5 are respectively arranged with one group of annular seal groove 71, and respectively organize annular seal groove 71 and be twice, and the interior seal ring 72 that is all embedded with of each annular seal groove 71.
When above-mentioned swivel coupling uses, two quiet joints 3 are screwed in respectively in the radial tab mounting hole 2 on housing 1, two corresponding moving joints 9 screw in respectively in the longitudinal joints mounting hole 8 on running shaft 5, when running shaft 5 rotates, moving joint 9 can be followed rotation, meanwhile, the pipeline that corresponding quiet joint 3 connects can, by radial tab mounting hole 2, circular groove 6 and longitudinal joints mounting hole 8 and the pipeline connection that moving joint 9 is connected, be realized the circulation of liquid.
In the above-described embodiments, the annular seal groove 71 embedding for seal ring 72 is arranged on running shaft 5, and annular seal groove 71 is provided with twice in each side of circular groove 6, in other embodiments of the present utility model, annular seal groove 71 also can be arranged on housing 1, and quantity is also not limited to twice.In addition, in above-described embodiment, axially jiont treatment hole comprises radial hole section 81 and axial bore section 82, in other are implemented, longitudinal joints mounting hole 8 also can adopt other structures, for example, axial bore section is only set and axial bore section is directly communicated with the vallecular cavity of circular groove 6.
Claims (6)
1. a swivel coupling, comprise that the housing and the rotary seal that are provided with rotary shaft hole are assemblied in the running shaft in rotary shaft hole, it is characterized in that: described housing is provided with the radial tab mounting hole that runs through rotary shaft hole hole wall, the outer circumferential face of described running shaft is provided with circular groove corresponding with described radial tab position of mounting hole and that be interconnected, and described running shaft is provided with the longitudinal joints mounting hole on the end face that an end opening communicates with the vallecular cavity of described circular groove, the other end opening is arranged on running shaft.
2. a kind of swivel coupling according to claim 1, is characterized in that: the width direction both sides in described circular groove on described running shaft are respectively equipped with annular seal groove, in described annular seal groove, are embedded with seal ring.
3. a kind of swivel coupling according to claim 2, is characterized in that: the annular seal groove of described circular groove width direction both sides is twice.
4. according to a kind of swivel coupling described in claim 1 or 2 or 3, it is characterized in that: described longitudinal joints mounting hole comprises the radial hole section that is arranged on described circular groove diapire and becomes the L shaped axial bore section being connected with radial hole section.
5. according to a kind of swivel coupling described in claim 1 or 2 or 3, it is characterized in that: described radial tab mounting hole is greater than the width of circular groove near the diameter of one end of running shaft.
6. according to a kind of swivel coupling described in claim 1 or 2 or 3, it is characterized in that: described radial tab mounting hole is shoulder hole, its diameter near one end of running shaft is less than the diameter away from one end of running shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320742192.4U CN203686439U (en) | 2013-11-22 | 2013-11-22 | Rotary joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320742192.4U CN203686439U (en) | 2013-11-22 | 2013-11-22 | Rotary joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203686439U true CN203686439U (en) | 2014-07-02 |
Family
ID=51008337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320742192.4U Expired - Fee Related CN203686439U (en) | 2013-11-22 | 2013-11-22 | Rotary joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203686439U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223946A (en) * | 2016-12-14 | 2018-06-29 | 中航通飞研究院有限公司 | A kind of novel multi-channel rotary joint |
| CN108799672A (en) * | 2018-08-23 | 2018-11-13 | 天津海外海科技有限公司 | A kind of cunning ring of impact resistance and application method |
| CN109442122A (en) * | 2018-12-17 | 2019-03-08 | 东莞职业技术学院 | A kind of Pneumatic rotary connector |
| CN110842784A (en) * | 2019-12-26 | 2020-02-28 | 湖南安冠智能科技有限公司 | Polishing equipment and liquid path switching device thereof |
-
2013
- 2013-11-22 CN CN201320742192.4U patent/CN203686439U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223946A (en) * | 2016-12-14 | 2018-06-29 | 中航通飞研究院有限公司 | A kind of novel multi-channel rotary joint |
| CN108799672A (en) * | 2018-08-23 | 2018-11-13 | 天津海外海科技有限公司 | A kind of cunning ring of impact resistance and application method |
| CN109442122A (en) * | 2018-12-17 | 2019-03-08 | 东莞职业技术学院 | A kind of Pneumatic rotary connector |
| CN109442122B (en) * | 2018-12-17 | 2020-12-22 | 东莞职业技术学院 | Pneumatic rotary joint |
| CN110842784A (en) * | 2019-12-26 | 2020-02-28 | 湖南安冠智能科技有限公司 | Polishing equipment and liquid path switching device thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20151122 |
|
| EXPY | Termination of patent right or utility model |