CN201764168U - Rotary joint - Google Patents
Rotary joint Download PDFInfo
- Publication number
- CN201764168U CN201764168U CN2010205349302U CN201020534930U CN201764168U CN 201764168 U CN201764168 U CN 201764168U CN 2010205349302 U CN2010205349302 U CN 2010205349302U CN 201020534930 U CN201020534930 U CN 201020534930U CN 201764168 U CN201764168 U CN 201764168U
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- Prior art keywords
- joint
- housing
- spacer
- cover
- wall
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- 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 relates to a fluid transmission joint, particularly a rotary joint, According to the technical scheme provided by the utility model, bearings arranged at an interval in the middle part of the joint are rotatably arranged in the external section of the bore of a housing, a sleeve gasket is arranged between the two bearings and is fixedly connected to the housing as well as sealedly connected to the joint, a hole retaining ring is arranged on the external end part of the wall body of the bore of the housing, the inner end of the external wall of the joint is provided with a shaft retaining ring, a piston storage inner sleeve is arranged in the internal section of the bore of the housing, the piston storage inner sleeve is joint to the inner end part of the joint, a gap is left between the bore of the piston storage inner sleeve and the external wall of the inner end part of the joint, the external wall of the piston storage inner sleeve tightly abuts against the housing, a compressed first resilient support is jacked outside a first abrasion resistant sealing ring jacket. The rotary joint has the characteristics of good sealing effect, high safety performance, simple structure, long service lifetime etc.
Description
Technical field
The utility model relates to a kind of joint of fluid transmission, is specially a kind of swivel joint.
Background technique
Swivel joint is assemblied between regular supply pipeline and the rotating drum as a kind of mechanical seal parts, realizes the dynamic seal (packing) of flowing medium in input derivation process.According to different applying working conditions, swivel joint is applicable to steam, hot and cold water, gas, the multiple medium of elevated temperature heat wet goods under different pressures, rotating speed and the temperature environment.That the swivel joint Sealing has is metal, graphite, also have rubber, for pursuing working life, is mostly to be provided with the sealing of several roads, make circulation medium when sealing leaks together, also have an other road sealing device onset, but, bring a lot of inconvenience to maintenance because manufacturing structure is tight, complicated.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and the swivel joint of a kind of good sealing effect, Safety performance height, simple in structure, long service life is provided.
The technological scheme that provides according to the utility model, described swivel joint, comprise joint and housing, the stage casing of joint by the bearing that is provided with at interval be rotatably installed in the outer section of the endoporus of housing in, between two bearings, be provided with spacer, spacer is with housing fixedlys connected, spacer and joint are and are tightly connected, outer end at the endoporus wall body of housing is provided with the hole back-up ring, outer wall the inner at joint is provided with shaft block ring, in the endoporus inner segment of housing, be provided with in the storage piston and overlap, be socketed in the inner end of joint in the storage piston, has the gap between the inner end outer wall of the endoporus of cover and joint in the storage piston, the outer wall and the housing of cover closely offset in the storage piston, cover inner groove in offering on the endoporus wall body that overlaps in the storage piston is provided with the first wear-resistant seal circle in interior cover inner groove, be socketed with the compressed first elastic support circle outside the first wear-resistant seal circle.
Cover outer groove in offering on the outer wall that overlaps in the storage piston is provided with first elastic seal ring in interior cover outer groove.
Offer first lubricant reservoir in spacer, offer pouring orifice on housing, described pouring orifice is communicated with first lubricant reservoir.
And formation second lubricant reservoir between the cover in the approaching bearing of cover and the storage piston in the storage piston.
On the endoporus wall body that is provided with spacer between two bearings, offer the spacer inner groove, in the spacer inner groove, be provided with the second wear-resistant seal circle, outside the second wear-resistant seal circle, be socketed with the compressed second elastic support circle.On the outer wall of spacer, offer the spacer outer groove, in the spacer outer groove, be provided with second elastic seal ring.
The utlity model has advantages such as good sealing effect, Safety performance height, simple in structure and long service life.
Description of drawings
Fig. 1 is an overall structure schematic representation of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with concrete drawings and Examples.
As shown in the figure, this swivel joint, comprise joint 1 and housing 4, the stage casing of joint 1 by the bearing 3 that is provided with at interval be rotatably installed in the outer section of the endoporus of housing 4 in, between two bearings 3, be provided with spacer 5, spacer 5 is with housing 4 fixedlys connected, spacer 5 is with joint 1 and is tightly connected, be provided with the hole in the outer end of the endoporus wall body of housing 4 with back-up ring 9, outer wall the inner at joint 1 is provided with shaft block ring 2, in the endoporus inner segment of housing 4, be provided with in the storage piston and overlap 11, cover 11 is socketed in the inner end of joint 1 in the storage piston, has the gap between the inner end outer wall of the endoporus of cover 11 and joint 1 in the storage piston, the outer wall and the housing 4 of cover 11 closely offset in the storage piston, cover inner groove in offering on the endoporus wall body of cover 11 in the storage piston is provided with the first wear-resistant seal circle 13 in interior cover inner groove, be socketed with the compressed first elastic support circle 14 outside the first wear-resistant seal circle 13.
Cover outer groove in offering on the outer wall of cover 11 in the storage piston is provided with first elastic seal ring 10 in interior cover outer groove.
Be provided with first lubricant reservoir 15 in spacer 5, offer pouring orifice 8 on housing 4, described pouring orifice 8 is communicated with first lubricant reservoir 15.During swivel joint work, pouring orifice 8 planted agents screw in the shutoff screw.
And formation second lubricant reservoir 12 between the cover 11 in cover 11 approaching bearings and the storage piston in the storage piston.
Be on the endoporus wall body that is provided with spacer 5 between two bearings 3 and offer the spacer inner groove, in the spacer inner groove, be provided with the second wear-resistant seal circle 16, outside the second wear-resistant seal circle 16, be socketed with the compressed second elastic support circle 17.On the outer wall of spacer 5, offer the spacer outer groove, in the spacer outer groove, be provided with second elastic seal ring 6.
During work, joint 1 is high speed rotating in housing 4, finishes gas delivery.When 13 wearing and tearing of the first wear-resistant seal circle, the first elastic support circle 14 can compensate the wear-resistant seal circle 13 of winning along the lateral extrusion first wear-resistant seal circle 13, has guaranteed the tightness between the cover 11 in joint 1 and the storage piston; In like manner, 16 wearing and tearing of the second wear-resistant seal circle, the second elastic support circle 17 can make the second wear-resistant seal circle 16 compensate along the lateral extrusion second wear-resistant seal circle 16, has guaranteed the tightness between joint 1 and the spacer 5.
The first wear-resistant seal circle 13 and the second wear-resistant seal circle 16 are selected the relatively poor PTFE self lubricating material of elasticity for use; The first elastic support circle 14 and the second elastic support circle 17 are selected elasticity rubber preferably for use.
There is relative rotary motion between joint 1 and the housing 4, be provided with seal lubrication oil pocket 12,15 in housing 4 inside, pouring orifice 8 from housing 4 injects the lubricant oil of 1/3 ~ 1/2 oil chamber volume, thereby lubricates for the operation of swivel joint continuous high speed provided reliably in 6000 hours.PTFE rotation composite sealing ring be by the relatively poor PTFE self lubricating material of elasticity and elasticity preferably building rubber compound form.Rotate the surface vacuum ion beam sputtering deposition tungsten disulfide film that there is relative rotary motion in composite sealing ring at joint and PTFE, make friction factor between them less than 0.001, generation frictional force is minimum, the operation temperature rise is not more than 35 ℃ under the linear velocity of 3 meter per seconds for a long time, and the life-span of PTFE rotation composite sealing ring was up to 6000 hours.
Claims (6)
1. swivel joint, comprise joint (1) and housing (4), the stage casing of joint (1) by the bearing (3) that is provided with at interval be rotatably installed in the outer section of the endoporus of housing (4) in, between two bearings (3), be provided with spacer (5), spacer (5) is with housing (4) fixedlys connected, spacer (5) and joint (1) are and are tightly connected, be provided with the hole in the outer end of the endoporus wall body of housing (4) with back-up ring (2), be provided with shaft block ring (9) in outer wall the inner of joint (1), it is characterized in that: in the endoporus inner segment of housing (4), be provided with cover (11) in the storage piston, cover (11) is socketed in the inner end of joint (1) in the storage piston, has the gap between the inner end outer wall of the endoporus of cover (11) and joint (1) in the storage piston, the outer wall and the housing (4) of cover (11) closely offset in the storage piston, cover inner groove in the storage piston, offering on the endoporus wall body of cover (11), in interior cover inner groove, be provided with the first wear-resistant seal circle (13), outside the first wear-resistant seal circle (13), be socketed with the compressed first elastic support circle (14).
2. swivel joint as claimed in claim 1 is characterized in that: cover outer groove in offering on the outer wall of cover (11) in the storage piston is provided with first elastic seal ring (10) in interior cover outer groove.
3. swivel joint as claimed in claim 1 is characterized in that: offer first lubricant reservoir (15) in spacer (5), offer pouring orifice (8) on housing (4), described pouring orifice (8) is communicated with first lubricant reservoir (15).
4. swivel joint as claimed in claim 1 is characterized in that: and store up and overlap formation second lubricant reservoir (12) between (11) in approaching bearing of the interior cover of piston (11) and the storage piston.
5. swivel joint as claimed in claim 1, it is characterized in that: on the endoporus wall body that is provided with spacer (5) between two bearings (3), offer the spacer inner groove, in the spacer inner groove, be provided with the second wear-resistant seal circle (16), outside the second wear-resistant seal circle (16), be socketed with the compressed second elastic support circle (17).
6. swivel joint as claimed in claim 5 is characterized in that: offer the spacer outer groove on the outer wall of spacer (5), be provided with second elastic seal ring (6) in the spacer outer groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205349302U CN201764168U (en) | 2010-09-18 | 2010-09-18 | Rotary joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205349302U CN201764168U (en) | 2010-09-18 | 2010-09-18 | Rotary joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201764168U true CN201764168U (en) | 2011-03-16 |
Family
ID=43716773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205349302U Expired - Fee Related CN201764168U (en) | 2010-09-18 | 2010-09-18 | Rotary joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201764168U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936434A (en) * | 2010-09-18 | 2011-01-05 | 无锡市拓发自控设备有限公司 | Rotating joint |
| CN109140096A (en) * | 2018-09-20 | 2019-01-04 | 杭州优能特旋转接头制造厂 | A kind of commutation type rotary joint structure |
-
2010
- 2010-09-18 CN CN2010205349302U patent/CN201764168U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936434A (en) * | 2010-09-18 | 2011-01-05 | 无锡市拓发自控设备有限公司 | Rotating joint |
| CN109140096A (en) * | 2018-09-20 | 2019-01-04 | 杭州优能特旋转接头制造厂 | A kind of commutation type rotary joint structure |
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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: 20110316 Termination date: 20120918 |