CN2591375Y - Rotary joint - Google Patents
Rotary joint Download PDFInfo
- Publication number
- CN2591375Y CN2591375Y CN 02245535 CN02245535U CN2591375Y CN 2591375 Y CN2591375 Y CN 2591375Y CN 02245535 CN02245535 CN 02245535 CN 02245535 U CN02245535 U CN 02245535U CN 2591375 Y CN2591375 Y CN 2591375Y
- Authority
- CN
- China
- Prior art keywords
- valve body
- pressure
- rotary joint
- connecting seat
- 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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- Joints Allowing Movement (AREA)
Abstract
The utility model discloses a rotary joint, which is used for the hydraulic environment. One end on the upper part of the valve body is inserted into a work medium through a hollow external thread joint; since one corresponding end between the hollow external thread joint and the work medium is tightly blocked with a screw plug, the working media can flow out through the oil transportation holes and the connecting seat of the valve body only through changing the flow direction. The valve body and the connecting seat are connected and fixed respectively through a bearing, the high-pressure oil sealing, a retaining ring, a liner, etc., and accordingly, the corresponding rotation and the fixation between the valve body and the connecting seat can be realized. Simultaneously, a 2.5 mm gap is left between the bottom of the valve body 9 of the rotary joint and the connecting seat, and the flexible and reliable rotation can be ensured. The utility model has strong oil pressure bearing capacity; when the working pressure is greater than 100 kg/cm#+[2] or is less than or is equal to 400 kg/cm#+[2], the rotary joint can well work under the middle-pressure, the low-pressure, and the high-pressure environment, and rotary joint has the advantages of good sealing performance, flexible rotation, and reliable performance.
Description
Technical field
The utility model relates in a kind of can be used for, environment under low pressure, is particularly useful for the joint under the hyperbaric environment.
Background technique
At present, on the market common swivel joint generally only be applicable in, work under the environment of low pressure, working pressure generally is not more than 100kg/cm
2, when swivel joint in working pressure greater than 100kg/cm
2Down during work, sealability, unfailing performance weaken environment greatly, rotate dumbly, can not reach perfect performance and effect.
Summary of the invention
In order to overcome the deficiency of existing swivel joint, the utility model purpose provides a kind of novel swivel joint, removes in working pressure less than 100kg/cm
2Environment under can work well outside, in working pressure greater than 100kg/cm
2, smaller or equal to 400kg/cm
2Environment under can work well, keep excellent sealing performance, unfailing performance, and the joint rotation is flexibly.
To achieve these goals, we adopt following technological scheme: swivel joint is made up of valve body and connecting base.The nipple 10 of on the valve body of design hollow being housed, working medium enters from this end of nipple of this valve body 9, because an end relative with nipple 10 blocks with plug screw 8, goes out by the oil transportation hole of valve body, the oil transportation orifice flow of connecting base so working medium can only change the flow direction.Valve body and connecting base wait by bearing, High-pressure oil sealing, back-up ring, lining respectively and are connected and fix, so the relative rotation that can realize valve body and connecting base is with fixing.
Leaving the gap of 2.5mm between valve body 9 bottoms of described swivel joint and the connecting base 1 is advisable.
Owing to adopt the technical program, make the utility model bear oil pressure capacity and strengthen greatly, in working pressure greater than 100kg/cm
2, smaller or equal to 400kg/cm
2Environment under can work well, keep excellent sealing performance, unfailing performance, and make the joint rotation flexibly.
Description of drawings
The utility model will be further described below in conjunction with drawings and Examples.
Accompanying drawing is a structural representation of the present utility model.
Among the figure 1, connecting base, 2, liner, 3, sealing gasket, 4, the outer back-up ring of bearing, 5, bearing, 6, fastening screw nut, 7, oil sealing, 8, plug screw, 9, valve body, 10, nipple, 11, the oil sealing lining ring, 12, grease nipple, 13, shaft retaining ring, 14, High-pressure oil sealing.
Embodiment
Embodiment of the present utility model is: nipple 10 is housed on the valve body 9, and the other end of nipple 10 blocks with plug screw 8, and oil sealing lining ring 11, oil sealing 7 are housed below; Fastening screw nut 6 is placed on the valve body 9, bearing 5 is loaded on the valve body 9 with end ring 13 and tight, grease nipple 12 is loaded on the fastening screw nut 6, the lubricant oil of can annotating comes lubricating bearings 5, bearing outer ring fixes by the outer back-up ring 4 of bearing, valve body 9 lower ends seal with connecting base 1 with High-pressure oil sealing 14, sealing gasket 3, lining 2, and High-pressure oil sealing 14 can bear 400kg/cm
2Oil pressure; 1 of valve body 9 lower ends and connecting base leave the 2.5mm gap, its intensity and relative rotation have been guaranteed, bearing 5 adds butter by grease nipple 12 and lubricates, and by oil sealing 7 sealings, high-pressure medium enters from the end that valve body 9 is equipped with nipple 10, be sealed between valve body 9 and the connecting base 1 by high pressure High-pressure oil sealing 14, by the output of the oil transportation hole on the connecting base 1, connecting base 1 usefulness screw thread links to each other with other object.
Claims (2)
1, a kind of swivel joint, form by valve body and connecting base, it is characterized in that being equipped with on the valve body (9) nipple (10) of hollow, an end relative with nipple (10) blocks with plug screw (8), fastening screw nut (6) is placed on the valve body (9), bearing (5) is loaded on the valve body to come also tightly with end ring (13), oil sealing lining ring (11) is housed in the fastening screw nut (6), oil sealing (7), grease nipple (12) is housed on the fastening screw nut (6), bearing outer ring fixes by the outer back-up ring (4) of bearing, valve body (9) lower end High-pressure oil sealing (14), sealing gasket (3) lining (2) links with connecting base (1).
2, swivel joint according to claim 1 is characterized in that leaving between valve body (9) bottom and the connecting base (1) gap of 2.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02245535 CN2591375Y (en) | 2002-12-13 | 2002-12-13 | Rotary joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02245535 CN2591375Y (en) | 2002-12-13 | 2002-12-13 | Rotary joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2591375Y true CN2591375Y (en) | 2003-12-10 |
Family
ID=33717100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02245535 Expired - Fee Related CN2591375Y (en) | 2002-12-13 | 2002-12-13 | Rotary joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2591375Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105436631A (en) * | 2015-12-21 | 2016-03-30 | 宜昌长机科技有限责任公司 | Device for automatically regulating travel of gear slotting machine |
| CN106641524A (en) * | 2016-12-24 | 2017-05-10 | 北京工业大学 | Flange sectioning connection type rotary connector |
-
2002
- 2002-12-13 CN CN 02245535 patent/CN2591375Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105436631A (en) * | 2015-12-21 | 2016-03-30 | 宜昌长机科技有限责任公司 | Device for automatically regulating travel of gear slotting machine |
| CN106641524A (en) * | 2016-12-24 | 2017-05-10 | 北京工业大学 | Flange sectioning connection type rotary connector |
| CN106641524B (en) * | 2016-12-24 | 2018-10-09 | 北京工业大学 | A kind of subdivision flange join type rotary joint |
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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: 20031210 Termination date: 20100113 |