CN101936434B - Rotating joint - Google Patents
Rotating joint Download PDFInfo
- Publication number
- CN101936434B CN101936434B CN201010286345XA CN201010286345A CN101936434B CN 101936434 B CN101936434 B CN 101936434B CN 201010286345X A CN201010286345X A CN 201010286345XA CN 201010286345 A CN201010286345 A CN 201010286345A CN 101936434 B CN101936434 B CN 101936434B
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- Prior art keywords
- joint
- spacer
- cover
- wall
- housing
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- Sealing Devices (AREA)
Abstract
The invention relates to a joint for fluid transmission, in particular to a rotating joint. According to the technical scheme, the middle section of the joint is rotatably arranged in the outer section of an inner hole of a shell through alternately arranged bearings; a spacer bush is arranged between two bearings, is fixedly connected with the shell, and is in sealing connection with the joint; a retainer ring for hole is arranged on the outer end of the wall body of the inner hole of the shell, and a retainer ring for axis is arranged on the inner end of the outer wall of the joint; an inner sleeve for storing a piston is arranged in the inner section of the inner hole of the shell, and is sleeved on the inner end of the joint; clearance is reserved between the inner hole of the inner sleeve for storing the piston and the outer wall of the inner end of the joint; the outer wall of the inner sleeve for storing the piston is closely supported against the shell; and a compressed first elastic support ring is sleeved outside a first abrasion-resistance seal ring. The rotating joint has the characteristics of good sealing effect, high safety performance, simple structure, long service life and the like.
Description
Technical field
The present invention relates to a kind of joint of fluid transmission, be 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 objective of the invention is to overcome the deficiency that exists in the existing technology, provide that a kind of good sealing effect, Safety performance are high, simple in structure, the swivel joint of long service life.
According to technological scheme provided by the invention, said swivel joint comprises joint and housing; The stage casing of joint through 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 and is fixedly connected; Spacer and joint are and are tightly connected; Be provided with the hole in the outer end of the endoporus wall body of housing and use back-up ring, be provided with shaft block ring, in the endoporus inner segment of housing, be provided with in the storage piston and overlap in outer wall the inner of joint; Be socketed in the inner end of joint in the storage piston; Have 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 in the storage piston, overlaps; In interior cover inner groove, be provided with the first wear-resistant seal circle, outside the first wear-resistant seal circle, be socketed with the compressed first elastic support circle.
Cover outer groove in offering on the outer wall that in the storage piston, overlaps is provided with first elastic seal ring in interior cover outer groove.
In spacer, offer first lubricant reservoir, on housing, offer pouring orifice, 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 present invention has good sealing effect, Safety performance is high, simple in structure and advantage such as long service life.
Description of drawings
Fig. 1 is an overall structure schematic representation of the present invention.
Embodiment
Below in conjunction with concrete accompanying drawing and embodiment the present invention is described further.
As shown in the figure, this swivel joint comprises joint 1 and housing 4; The stage casing of joint 1 through 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 and is fixedly connected; Spacer 5 is with joint 1 and is tightly connected; Outer end at the endoporus wall body of housing 4 is provided with the hole with back-up ring 9, is provided with shaft block ring 2 in outer wall the inner of joint 1, in the endoporus inner segment of housing 4, is provided with in the storage piston to overlap 11; Cover 11 is socketed in the inner end of joint 1 in the storage piston; Have 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.
Cover outer groove in the storage piston, offering on the outer wall of cover 11 is provided with first elastic seal ring 10 in interior cover outer groove.
In spacer 5, be provided with first lubricant reservoir 15, on housing 4, offer pouring orifice 8, 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, accomplishes 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.
Overlap 11 in the piston in storage, be provided with first lubricant reservoir 15 again in the liquid seal of second lubricant reservoir 12 between the dual sealed solid of spacer 5 and joint 1, further strengthened sealing effect, make that the Safety performance of rotating is higher.
There is relative rotary motion between joint 1 and the housing 4; In housing 4 set inside seal lubrication oil pocket 12,15; 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 (1)
1. swivel joint; Comprise joint (1) and housing (4); The stage casing of joint (1) is rotatably installed in the outer section of endoporus of housing (4) through the bearing (3) that is provided with at interval, between two bearings (3), is provided with spacer (5), and spacer (5) is with housing (4) and is fixedly connected; Spacer (5) and joint (1) are and are tightly connected; Outer end at the endoporus wall body of housing (4) is provided with the hole with back-up ring (2), is 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 in the storage piston and overlap (11); Cover (11) is socketed in the inner end of joint (1) in the storage piston; Have 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);
Cover outer groove in the storage piston, offering on the outer wall of cover (11) is provided with first elastic seal ring (10) in interior cover outer groove;
In spacer (5), offer first lubricant reservoir (15), on housing (4), offer pouring orifice (8), described pouring orifice (8) is communicated with first lubricant reservoir (15);
And approaching bearing and interior the overlapping of storage piston of cover (11) forms second lubricant reservoir (12) in the storage piston between (11);
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);
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).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010286345XA CN101936434B (en) | 2010-09-18 | 2010-09-18 | Rotating joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010286345XA CN101936434B (en) | 2010-09-18 | 2010-09-18 | Rotating joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101936434A CN101936434A (en) | 2011-01-05 |
| CN101936434B true CN101936434B (en) | 2012-05-23 |
Family
ID=43389917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010286345XA Active CN101936434B (en) | 2010-09-18 | 2010-09-18 | Rotating joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101936434B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102401224A (en) * | 2011-11-29 | 2012-04-04 | 莱芜钢铁集团有限公司 | Connecting shaft lubricating device |
| CN105290962A (en) * | 2015-11-19 | 2016-02-03 | 中科院南京耐尔思光电仪器有限公司 | Transmission shaft and spherical surface grinding polisher |
| CN115218051B (en) * | 2022-08-11 | 2024-02-02 | 温州金业气动科技有限公司 | High-speed rotary joint |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4072328A (en) * | 1976-05-25 | 1978-02-07 | Hepworth Plastics Limited | Pipe couplings |
| CN2171040Y (en) * | 1993-07-31 | 1994-07-06 | 程熙昆 | Internal O shape compensating sealed ring |
| CN2611690Y (en) * | 2002-05-01 | 2004-04-14 | 内蒙古蒙西高新技术集团有限公司 | End sealing device of large diameter rotary cylinder |
| US6874824B2 (en) * | 2002-05-01 | 2005-04-05 | Dahl Brothers Canada Limited | Connection structure having pierced elastomeric gasket |
| CN2604575Y (en) * | 2002-12-02 | 2004-02-25 | 车恒德 | high-life high-efficiency combined dustproof ring |
| CN201288908Y (en) * | 2008-09-22 | 2009-08-12 | 浙江柏润液压有限公司 | Rigid rotating joint |
| CN201547434U (en) * | 2009-11-19 | 2010-08-11 | 深圳市钻通工程机械股份有限公司 | Slurry swivel joint assembly |
| CN201764168U (en) * | 2010-09-18 | 2011-03-16 | 无锡市拓发自控设备有限公司 | Rotary joint |
-
2010
- 2010-09-18 CN CN201010286345XA patent/CN101936434B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101936434A (en) | 2011-01-05 |
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