CN102313097A - Reverse spherical surface type multi-spring rotary joint - Google Patents
Reverse spherical surface type multi-spring rotary joint Download PDFInfo
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- CN102313097A CN102313097A CN201110244255A CN201110244255A CN102313097A CN 102313097 A CN102313097 A CN 102313097A CN 201110244255 A CN201110244255 A CN 201110244255A CN 201110244255 A CN201110244255 A CN 201110244255A CN 102313097 A CN102313097 A CN 102313097A
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Abstract
The invention relates to a reverse spherical surface type multi-spring rotary joint. A tail cover and an end cover are respectively and fixedly connected with both ends of a hollow casing, an outer pipe is rotatablely connected in hollow holes of the casing and the end cover, a sealing device and a sealing compensation device are arranged between the outer pipe and the casing, the sealing device comprises a spherical surface sealing reverse spherical surface ring and a spherical end cover, the sealing surface of the reverse spherical surface ring is a convex spherical surface, the sealing surface of the spherical end cover is a concave spherical surface, the reverse spherical surface ring is sheathed outside the outer pipe and is butted on one side of a convex ring arranged on the outer pipe, the spherical end cover is sheathed outside the outer pipe and is fixed between the casing and the end cover, the sealing compensation device comprises a spring seat and a plurality of springs, the spring seat is glidingly matched onto the outer pipe, and the springs are arranged between the spring seat and the other side of the convex ring. The reverse spherical surface type multi-spring rotary joint has the advantages that the reverse spherical surface type sealing structure is adopted, the sealing pressure bearing capability is enhanced, the rotating speed can be improved, the service life is prolonged, and the fault rate is reduced.
Description
Technical field
The invention belongs to the mechanical sealing technology field, relate to and be used for flowing medium and be input to the dynamic seal apparatus of rotating equipment, specifically a kind of anti-many springs of spherical swivel joint from static pipeline.
Background technique
Swivel joint is that flowing medium (liquid, oil, gas etc.) is input to the dynamic seal apparatus the rotating equipment from static pipeline; Be to solve run, drip, leak; Energy saving, the protection environment, requisite mechanical seal basis critical component improves working conditions.
Swivel joint is divided into plane sealing face and ball face sealing face according to the structural type of sealing surface.Existing ball face sealing face structure is on the outer spherical surface that is provided with on the outer tube, to be with seal ring; As the day for announcing be on June 8th, 2011; Notification number is CN101619788B, and denomination of invention just discloses a kind of swivel joint of ball face sealing face structure for the Chinese invention patent of " swivel joint that has temperature difference zone structure ".The sealing surface of seal ring is a concave spherical surface in this patent, and the sealing load that can bear is little, and seal wears is later or receive larger axis easy cracked after power, causes often breaking down, and it is not high also to exist rotating speed to carry simultaneously, the deficiency that working life is short; To the swivel joint of big latus rectum, this defective is particularly outstanding; And outer tube is provided with outer spherical surface, and processing cost is high.
Summary of the invention
The present invention is directed to the deficiency of above-mentioned existing technology, a kind of anti-many springs of spherical swivel joint is provided, the seal ring of this swivel joint can bear bigger pressure, long service life.
According to technological scheme provided by the invention: a kind of anti-many springs of spherical swivel joint; Be fixedly connected with the tail-hood that has fluid passage and the end cap of hollow respectively at the two ends of hollow housing; Rotatably be connected with outer tube in the hollow hole of said housing and said end cap; Stretch out from said end cap the outer end of said outer tube, is provided with seal arrangement and sealing compensation device between said outer tube and the said housing; Said seal arrangement comprises the anti-sphere ring and the spherical end cap of ball face sealing; The sealing surface of said anti-sphere ring is protruding sphere; The sealing surface of said spherical end cap is a concave spherical surface; Said anti-sphere ring set is contained in outside the said outer tube and is resisted against a side of the bulge loop on the said outer tube, and said spherical end cap is sleeved on outside the said outer tube and is fixed between said housing and the said end cap; Said sealing compensation device comprises spring seat and a plurality of spring, and said spring seat is slidingly fitted on the said outer tube, and said a plurality of springs are installed between the opposite side of said spring seat and said bulge loop.
Each said spring housing is contained on the spring guide, and an end of said spring guide is fixed on the said bulge loop, and its other end is slidingly fitted on the said spring seat.
Be provided with the key guiding groove of symmetry in the said spring seat endoporus, said key guiding groove is slidingly fitted on the symmetrical flat key that is provided with on the said outer tube.
Said flat key is fixed on the said outer tube through fillister head screw.
Between said housing and the said outer tube cylinder ring is installed, between said end cap and the said outer tube guide ring is installed.
Said cylinder ring is fixed on the said housing through elastic cylindrical pin, and said guide ring is fixed on the said end cap through the spline pressing plate.
The interior pipe that has been rotatably assorted in the said outer tube is provided with O type circle between pipe and the said outer tube in said.
Said tail-hood adopts the elbow tail-hood.
Said tail-hood adopts straight tail-hood.
Compared with present technology the present invention has the following advantages: the present invention adopts anti-spherical sealing configuration, can bear sealing load more than three times than existing with bore concave spherical surface sealing configuration, can improve rotating speed, increases the service life, and reduces rate of fault; For big latus rectum swivel joint, many springs have solved the problem of single spring sealed underpressure.
Description of drawings
Fig. 1 is first kind of embodiment's of the present invention a structural representation.
Fig. 2 is second kind of embodiment's of the present invention a structural representation.
Embodiment
Embodiment below in conjunction with in the accompanying drawing is further described the present invention.
Among Fig. 1, Fig. 2, comprise elbow tail-hood 1, hexagon head bolt 2, spring washer 3, tail-hood sealing gasket 4, elastic cylindrical pin 5, cylinder ring 6, housing 7, O type circle 8, spring seat 9, flat key 10, fillister head screw 11, spring 12, spring guide 13, outer tube 14, end bracket enclosed pad 15, anti-sphere ring 16, spherical end cap 17, hexagon head bolt 18, guide ring 19, spline pressing plate 20, pan head screw 21, spring washer 22, quick change flange 23, half point ring 24, red copper pad 25, end cap 26, hexagonal socket head plug 27, gasket ring 28, O type circle 29, interior pipe 30, straight tail-hood 31 etc.
Like Fig. 1, shown in Figure 2, the present invention is a kind of anti-many springs of spherical swivel joint, is fixedly connected with the tail-hood that has fluid passage and the end cap 26 of hollow through hexagon head bolt 2,18 and spring washer 3 respectively at the two ends of hollow housing 7.Between end cap 26 and the housing 7, be lined with end bracket enclosed pad 15 and tail-hood sealing gasket 4 respectively between tail-hood and the housing 7.Housing 7 tops are provided with the subsequent use screw of detection of thermometric or pressure measurement, and screw is blocked with hexagonal socket head plug 27.Tail-hood has two kinds, is respectively elbow tail-hood 1 and straight tail-hood 31.All be provided with lifting and spline dual-purpose hole on housing 7, the tail-hood.
Rotatably be connected with outer tube 14 in the hollow hole of housing 7 and end cap 26, stretch out from end cap 26 outer end of outer tube 14.Between housing 7 and the outer tube 14 cylinder ring 6 is installed, cylinder ring 6 is fixed on the housing 7 through elastic cylindrical pin 5, can be provided with metal on the cylindrical of cylinder ring 6 and strengthen cover; Between end cap 26 and the outer tube 14 guide ring 19 is installed, guide ring 19 is fixed on the end cap 26 through pan head screw 21, spring washer 22 and spline pressing plate 20, also is provided with metal on the cylindrical of guide ring 19 and strengthens cover.Cylinder ring 6 constitutes the dual-supporting oilless bearing with guide ring 19, has supported outer tube 14, makes its stability of rotation.
Be provided with seal arrangement and sealing compensation device between outer tube 14 and the housing 7.
Above-mentioned seal arrangement comprises the anti-sphere ring 16 and the spherical end cap 17 of ball face sealing.The sealing surface of anti-sphere ring 16 is protruding sphere; The sealing surface of spherical end cap 17 is a concave spherical surface; Anti-sphere ring 16 is sleeved on outside the outer tube 14 and is resisted against a side of the bulge loop on the outer tube 14, and spherical end cap 17 is sleeved on outside the outer tube 14 and is fixed between housing 7 and the end cap 26.
The present invention has compared with prior art cancelled the outer spherical surface that is provided with on the outer tube 14, and outer tube 14 is easy to process, can reduce cost; Seal ring changes the anti-sphere ring 16 that has protruding ball face sealing face into by the seal ring that has the concave spherical surface sealing surface, has been multiplied ability and working life that sphere bears sealing load, has prevented the phenomenon that seal ring is cracked.
Above-mentioned sealing compensation device comprises spring seat 9 and a plurality of spring 13.Spring seat 9 is slidingly fitted on the outer tube 14, and an end of spring seat 9 is resisted against on the cylinder ring 6, and is lined with gasket ring 28 between spring seat 9 and the cylinder ring 6.Be provided with the key guiding groove of symmetry in spring seat 9 endoporus, the key guiding groove is slidingly fitted on the symmetrical flat key 10 that is provided with on the outer tube 14, and flat key 10 is fixed on the outer tube 14 through fillister head screw 11.Be provided with O type circle 8 between key guiding groove and the outer tube 14.
A plurality of springs 13 are installed between the opposite side of spring seat 9 and bulge loop.Each spring 13 is sleeved on the spring guide 13, and an end of spring guide 13 is fixed on the bulge loop, and its other end is slidingly fitted on the spring seat 9.After anti-sphere ring 16 wearing and tearing, through the pressure of spring 13, outer tube 14 is moved axially, thereby make anti-sphere ring 16 compress spherical end cap 17, play the sealing compensation effect.13 auxiliary leading roles of spring guide.
Have the import of flute profile medium on the circumferential surface of outer tube 14, the medium import is between bulge loop and spring seat 9.
The outer end of outer tube 14 can adopt flange to connect or the two kinds of Placements that are threaded.Fig. 1, two kinds of embodiments shown in Figure 2 all adopt flange to connect, and through half point ring 24 quick change flange 23 is installed in the outer end of outer tube 14, and the exterior edge face of outer tube 14 are provided with red copper pad 25.If adopt thread connecting mode, then directly be processed with outside thread in the outer end of outer tube 14.
Assembling process of the present invention is following: as shown in Figure 1, and be provided with the cylinder ring 6 that metal strengthens cover to cylindrical and be loaded in the uropore of housing 7, the elastic cylindrical pin 5 of symmetry is loaded in the cylinder pin hole of housing 7 uropore end faces and embeds in the spline groove of cylinder ring 6 end faces.The thermometric or the pressure measurement of blocking housing 7 tops with hexagonal socket head plug 27 detect subsequent use screw.Round end flat key 10 is loaded in the symmetrical round end keyway on outer tube 14 cylindricals, and fastening with fillister head screw 11, one group is uniformly distributed with one group that spring guide 13 screws on outer tube 14 bulge loops with threaded one end and is uniformly distributed with in the screw, and spring 12 is enclosed within respectively on the spring guide 13.O type circle 8 is packed into earlier in the O type ring recess of spring seat 9 endoporus, and gasket ring 28 embeds in the endoporus groove of spring seat 9 with its symmetrical end face boss, puts from outer tube 14 tail ends together, and makes the symmetrical keyway of spring seat 9 endoporus put round end flat key 10.One group of O type circle 29 is contained in the O type groove of outer tube 14 uropores, in order to pipe 30 in inserting.Anti-sphere ring 16 is inserted in from outer tube 14 heads, and 14 combinations of the outer tube of formation are supported in cylinder ring 6 holes with its afterbody, with its neck support in guide ring 19 holes.Guide ring 19 cylindricals have metal to strengthen cover; Be loaded on together in end cap 26 holes; On guide ring 19 end faces, have symmetrical spline groove, an end of spline pressing plate 20 is embedded in the symmetrical spline groove, and the other end is fixed on the small end face of end cap 26 with pan head screw 21, spring washer 22.Spherical end cap 17 is loaded on the interior step of end cap 26 big ends; Add that end bracket enclosed pad 15 makes up the end surface that is anchored on housing 7 with hexagon head bolt 18 and spring washer 3 with end cap 26 together, make spherical end cap 17 constitute inner sealing formula sealing compensation structure with outer tube 14.Elbow tail-hood 1 is anchored on the breech face of housing 7 with spring washer 3 with tail-hood sealing gasket 4 usefulness hexagon head bolts 2.Quick change flange 23, half point ring 24, red copper pad 25 are fastening with bolt and user's axle head.The side opening flange of housing 7 and the flange of elbow tail-hood 1 respectively with being connected of user into and out of metallic conduit.
If user's outlet conduit is the level flange, then elbow tail-hood 1 changes straight tail-hood 31 into and gets final product, and is as shown in Figure 2.
Seal arrangement and sealing compensation device are closed in the housing 7 among the present invention, and flowing medium gets into from housing 7 side openings, and the one group of flute profile medium import that on outer tube 14, has is transported in the rotating equipment goes, and return out with tail-hood through interior pipe 30 after the medium work done again.
The present invention has the following advantages: 1, anti-spherical sealing configuration can bear sealing load more than three times than existing with bore concave spherical surface sealing configuration, can improve rotating speed, increases the service life, and reduces rate of fault; 2, how spring sealed closed collocation structure be better than Open Security property; 3, the cylinder ring of support outer tube and guide ring cylindrical have metal to strengthen cover, and end face is provided with the spline groove, makes outer tube stability of rotation and life-saving; 4, housing is the split fabricated construction, is easy to standard serialization, generalization, is easy to adaptation condition and changes; 5, housing, tail-hood all are provided with lifting and spline dual-purpose hole, convenient for assembly and maintenance; 6, for big latus rectum swivel joint, many springs have solved the problem of single spring sealed underpressure.
Claims (9)
1. anti-many springs of spherical swivel joint; Be fixedly connected with the tail-hood that has fluid passage and the end cap (26) of hollow respectively at the two ends of hollow housing (7); Rotatably be connected with outer tube (14) in the hollow hole of said housing (7) and said end cap (26); Stretch out from said end cap (26) outer end of said outer tube (14), is provided with seal arrangement and sealing compensation device between said outer tube (14) and the said housing (7); It is characterized in that: said seal arrangement comprises the anti-sphere ring (16) and the spherical end cap (17) of ball face sealing; The sealing surface of said anti-sphere ring (16) is protruding sphere; The sealing surface of said spherical end cap (17) is a concave spherical surface; Said anti-sphere ring (16) is sleeved on outside the said outer tube (14) and is resisted against a side of the bulge loop on the said outer tube (14), and said spherical end cap (17) is sleeved on outside the said outer tube (14) and is fixed between said housing (7) and the said end cap (26); Said sealing compensation device comprises spring seat (9) and a plurality of spring (13), and said spring seat (9) is slidingly fitted on the said outer tube (14), and said a plurality of springs (13) are installed between the opposite side of said spring seat (9) and said bulge loop.
2. according to described anti-many springs of the spherical swivel joint of claim 1; It is characterized in that: each said spring (13) is sleeved on the spring guide (13); One end of said spring guide (13) is fixed on the said bulge loop, and its other end is slidingly fitted on the said spring seat (9).
3. according to claim 1 or 2 described anti-many springs of spherical swivel joints; It is characterized in that: be provided with the key guiding groove of symmetry in said spring seat (9) endoporus, said key guiding groove is slidingly fitted in said outer tube (14) and goes up on the symmetrical flat key (10) that is provided with.
4. according to described anti-many springs of the spherical swivel joint of claim 3, it is characterized in that: said flat key (10) is fixed on the said outer tube (14) through fillister head screw (11).
5. according to described anti-many springs of the spherical swivel joint of claim 1, it is characterized in that: between said housing (7) and the said outer tube (14) cylinder ring (6) is installed, between said end cap (26) and the said outer tube (14) guide ring (19) is installed.
6. according to described anti-many springs of the spherical swivel joint of claim 5; It is characterized in that: said cylinder ring (6) is fixed on the said housing (7) through elastic cylindrical pin (5), and said guide ring (19) is fixed on the said end cap (26) through spline pressing plate (20).
7. according to described anti-many springs of the spherical swivel joint of claim 1, it is characterized in that: the interior pipe (30) that has been rotatably assorted in the said outer tube (14) is provided with O type circle (29) between said interior pipe (30) and the said outer tube (14).
8. according to described anti-many springs of the spherical swivel joint of claim 1, it is characterized in that: said tail-hood adopts elbow tail-hood (1).
9. according to described anti-many springs of the spherical swivel joint of claim 1, it is characterized in that: said tail-hood adopts straight tail-hood (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110244255A CN102313097A (en) | 2011-08-25 | 2011-08-25 | Reverse spherical surface type multi-spring rotary joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110244255A CN102313097A (en) | 2011-08-25 | 2011-08-25 | Reverse spherical surface type multi-spring rotary joint |
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| Publication Number | Publication Date |
|---|---|
| CN102313097A true CN102313097A (en) | 2012-01-11 |
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ID=45426527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110244255A Pending CN102313097A (en) | 2011-08-25 | 2011-08-25 | Reverse spherical surface type multi-spring rotary joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102313097A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661462A (en) * | 2012-05-11 | 2012-09-12 | 芜湖瑞精机床有限责任公司 | High-speed rotary joint |
| CN104214453A (en) * | 2014-09-01 | 2014-12-17 | 湘潭大学 | Dual-channel rotary joint |
| CN106382426A (en) * | 2016-11-29 | 2017-02-08 | 南京嘉清信息技术有限公司 | Rotary joint of heating cooling system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR9202142A (en) * | 1991-08-09 | 1993-03-23 | Johnson Corp | ROTARY JOINT FOR USE WITH A DRUM SPINNING AROUND A GEOMETRIC AXIS |
| CN2186844Y (en) * | 1994-02-03 | 1995-01-04 | 鲁南衡达集团公司 | Pressure adjusting rotary joint |
| CN201066006Y (en) * | 2007-04-19 | 2008-05-28 | 汪冰 | Inner tube fixed high speed rotation joint |
| CN201896948U (en) * | 2011-01-20 | 2011-07-13 | 大连华阳光大密封有限公司 | Rotary joint of rotor assembly outer pipe structure |
| CN202266769U (en) * | 2011-08-25 | 2012-06-06 | 江苏腾旋科技股份有限公司 | Reversely spherical multi-spring rotary joint |
-
2011
- 2011-08-25 CN CN201110244255A patent/CN102313097A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR9202142A (en) * | 1991-08-09 | 1993-03-23 | Johnson Corp | ROTARY JOINT FOR USE WITH A DRUM SPINNING AROUND A GEOMETRIC AXIS |
| CN2186844Y (en) * | 1994-02-03 | 1995-01-04 | 鲁南衡达集团公司 | Pressure adjusting rotary joint |
| CN201066006Y (en) * | 2007-04-19 | 2008-05-28 | 汪冰 | Inner tube fixed high speed rotation joint |
| CN201896948U (en) * | 2011-01-20 | 2011-07-13 | 大连华阳光大密封有限公司 | Rotary joint of rotor assembly outer pipe structure |
| CN202266769U (en) * | 2011-08-25 | 2012-06-06 | 江苏腾旋科技股份有限公司 | Reversely spherical multi-spring rotary joint |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661462A (en) * | 2012-05-11 | 2012-09-12 | 芜湖瑞精机床有限责任公司 | High-speed rotary joint |
| CN102661462B (en) * | 2012-05-11 | 2014-07-30 | 芜湖瑞精机床有限责任公司 | High-speed rotary joint |
| CN104214453A (en) * | 2014-09-01 | 2014-12-17 | 湘潭大学 | Dual-channel rotary joint |
| CN106382426A (en) * | 2016-11-29 | 2017-02-08 | 南京嘉清信息技术有限公司 | Rotary joint of heating cooling system |
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Application publication date: 20120111 |
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| RJ01 | Rejection of invention patent application after publication |