CN202469307U - Wedge-type seal rotary joint - Google Patents
Wedge-type seal rotary joint Download PDFInfo
- Publication number
- CN202469307U CN202469307U CN2012200201420U CN201220020142U CN202469307U CN 202469307 U CN202469307 U CN 202469307U CN 2012200201420 U CN2012200201420 U CN 2012200201420U CN 201220020142 U CN201220020142 U CN 201220020142U CN 202469307 U CN202469307 U CN 202469307U
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- flange
- wedge
- inner sleeve
- type seal
- sleeve
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Abstract
The utility model provides a wedge-type seal rotary joint which comprises an outer sleeve, an inner coil and an end flange, wherein the end flange is connected at one end of the outer sleeve; the inner coil is sleeved in the outer sleeve and is connected with the outer sleeve through a bearing structure; a first open end of an inner sleeve is hermetically connected with the end flange, The connecting structure of the hermetical connection is as follows: one end, connected with the flange, of the inner sleeve is set as an end A, the outer diameter of the end A of the inner sleeve is set as D1, one end, connected with the outer sleeve, of the inner sleeve is set as an end B, the outer diameter of the end B of the inner sleeve is set as D2, D1 is less than D2, the ends A and B of the inner sleeve form a step structure; one end, connected with the inner sleeve, of the flange is set as an end C, and the inner diameter of the end C of the flange is set as D3, D1 is less than D3, the end A of the inner sleeve is inserted into the end C of the flange, a wedge-type seal ring is arranged between the outer wall of the end A of the inner sleeve and the inner wall of the end C of the flange and is pressed in the end C of the flange by virtue of a press end cap; and a pressing device is connected between the pressing end cap and the step structure of the outer wall of the inner sleeve. By utilizing the technical scheme, an excellent sealing effect can be kept all the time.
Description
Technical field
The present technique scheme is the flexible connection that is specifically designed to conveyance fluid medium between the rigid conduit, plays low-speed rotation, especially is suitable for high-pressure liquid, high-risk fluid, has on the conveying equipment of certain corrosive fluid.
Technical background
Employed swivel joint on traditional conveying equipment for fluid substances mainly is made up of inner ring, outer ring, primary seal, secondary sealing, ball and fastening piece, on conveying equipment for fluid substances such as some oil products, a part of general chemical article, uses, and has good effect.But traditional swivel joint has shown its narrow limitation when carrying some special media in use; Because the compensation of its primary seal is to lean on its inner one deck steel folder to realize, and the thickness of this steel folder is limited, under the effect of special fluid; Especially have certain corrosive fluid, through the effect of long-time fluid, this layer steel folder; More or less can some damage or corrosion; This just causes the situation of the primary seal of the inspection equipment of wanting frequent, otherwise, just might cause leakage.
Summary of the invention
The present technique scheme has been used brand-new sealing means to the deficiency of the above swivel joint, has both had the compensating type of the flexibility and the sealing of above-mentioned swivel joint, has overcome the deficiency of this kind product simultaneously again.The sealing means of present technique scheme adopts the sealing means of multilayer wedge shape exactly, under the internal pressure that is provided with in its end, makes its good seal all the time, selects sealing material meticulously for use simultaneously, makes it have good selflubricating again, has guaranteed the flexibility of rotation.
The present technique scheme is specific as follows:
A kind of wedge-type seal swivel joint comprises outer sleeve, interior coil and end flange; End flange is connected an end of outer sleeve; The inward turning pipe box is outside in the sleeve pipe, and is connected through bearing structure with outer sleeve;
First opening end of inner sleeve is connected with end flange is airtight, and this airtight connection structure connecting is:
If the end that is connected with flange of inner sleeve is the A end, the external diameter of inner sleeve A end is made as D1; If the end that is connected with outer sleeve of inner sleeve is the B end, the external diameter of inner sleeve B end is made as D2; D1＜D2; The inner sleeve side a and b constitutes ledge structure; Managing the blue end that is connected with inner sleeve is the C end, and the internal diameter of flange C end is made as D3, D1＜D3; Said inner sleeve A end inserts flange C end, between the inwall that the outer wall and the flange C of inner sleeve A end hold, the wedge-type seal circle is arranged; The wedge-type seal circle is pressed in the flange C end by compressing end cap; Also be connected with hold down gag between the said ledge structure that compresses end cap and inner sleeve outer wall.
Said wedge-type seal circle has multilayer, and each layer wedge-type seal circle is along the axially-aligned of flange.
Said hold down gag is a butterfly spring.
The bearing structure that the inward turning pipe box is connected with outer sleeve is all to have corresponding circumferential raceway on the outer sleeve inner wall and on the outer wall of interior coil, installation ball in the raceway.
On the outer wall of inward turning pipe B end, have circumferential dust sealing ring recess, be with seal ring in the sealing ring recess; The dust sealing ring recess is in the outside of raceway.Have circumferential secondary seal ring groove on the outer wall of inward turning pipe B end, be with seal ring in the sealing ring recess; The secondary seal ring groove is in the inboard of raceway.
Said raceway has two; The axially-aligned of two interior coils in raceway edge.
The linkage structure of one end of end flange and outer sleeve is, the periphery of end flange has a plurality of axial through holes, has the blind screwhole corresponding to this through hole on the end face of outer sleeve, and screw passes in the through hole rotation blind screwhole.
The principle of present technique scheme is explained as follows:
One end of outer sleeve has several screws, and its inboard processing twice raceway is equipped with interior coil in the outer sleeve; The outside of interior coil equally also processes the twice raceway; In the raceway cavity that sleeve pipe and interior coil constitute outside, ball is housed, and has formed relatively rotating of outer sleeve and interior coil.
On interior coil, having the two seals groove, is to be used to install dust ring together, and another road is the secondary sealing of installing.The two ends of interior coil, an end (being the B end) is used for being weldingly connected with medium tube, and the other end (being the A end) then is used to install multilayer wedge-type seal circle and inner hold down gag thereof.Multilayer wedge-type seal circle is to be cooperatively interacted by what the several layers male and female face constituted, and its hold down gag is a butterfly spring, and compression fit compresses gland.Outer sleeve is opened the screw end, will install with the pipeline flange connecting with screw, and wedge-type seal circle and hold down gag thereof are just in the cavity that flange, outer sleeve and inward turning pipe form.
The good effect of present technique scheme: can be widely used on the conveying equipment for fluid substances, the especially conveying of some high-risk fluids (such as triethyl aluminum, titanium tetrachloride etc.), have the conveying of certain corrosive fluid (such as liquid chlorine); The conveying of high-pressure liquid (such as LPG), the sealing configuration that it is unique has remained its good sealing effect, has guaranteed that fluid do not reveal; Sealing material selected makes its characteristic with selflubricating, and simultaneously good processing technology has guaranteed the concentricity of outer sleeve and interior coil to have guaranteed the flexibility of rotating; The structure that it is succinct makes it possess the convenience of installing; In the using process, only need regularly in raceway, to add lubricating grease, all the other Maintenance frees make its maintenance cost extremely low; Good material is guaranteed its long service life.
Description of drawings
Fig. 1 is the structure sectional view of present technique scheme;
Fig. 2 is the assembling schematic representation (not containing outer sleeve) of present technique scheme;
Fig. 3 is a present technique scheme schematic appearance.
Among the figure, flange 1, socket head screw 2, wedge-type seal circle 3, compress end cap 4, hold down gag 5, interior coil 6, secondary sealing 7, plug screw 8, outer sleeve 9, ball 10, dust-proof seal ring 11, raceway 12.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present technique scheme is further specified as follows:
A kind of wedge-type seal swivel joint comprises outer sleeve, interior coil and end flange; End flange is connected an end of outer sleeve; The inward turning pipe box is outside in the sleeve pipe, and is connected through bearing structure with outer sleeve;
First opening end of inner sleeve is connected with end flange is airtight, and this airtight connection structure connecting is:
If the end that is connected with flange of inner sleeve is the A end, the external diameter of inner sleeve A end is made as D1; If the end that is connected with outer sleeve of inner sleeve is the B end, the external diameter of inner sleeve B end is made as D2; D1＜D2; The inner sleeve side a and b constitutes ledge structure; Managing the blue end that is connected with inner sleeve is the C end, and the internal diameter of flange C end is made as D3, D1＜D3; Said inner sleeve A end inserts flange C end, between the inwall that the outer wall and the flange C of inner sleeve A end hold, the wedge-type seal circle is arranged; The wedge-type seal circle is pressed in the flange C end by compressing end cap; Also be connected with hold down gag between the said ledge structure that compresses end cap and inner sleeve outer wall.
Said wedge-type seal circle has multilayer, and each layer wedge-type seal circle is along the axially-aligned of flange.
Said hold down gag is a butterfly spring.
The bearing structure that the inward turning pipe box is connected with outer sleeve is all to have corresponding circumferential raceway on the outer sleeve inner wall and on the outer wall of interior coil, installation ball in the raceway.
On the outer wall of inward turning pipe B end, have circumferential dust sealing ring recess, be with seal ring in the sealing ring recess; The dust sealing ring recess is in the outside of raceway.Have circumferential secondary seal ring groove on the outer wall of inward turning pipe B end, be with seal ring in the sealing ring recess; The secondary seal ring groove is in the inboard of raceway.
Said raceway has two; The axially-aligned of two interior coils in raceway edge.
The linkage structure of one end of end flange and outer sleeve is, the periphery of end flange has a plurality of axial through holes, has the blind screwhole corresponding to this through hole on the end face of outer sleeve, and screw passes in the through hole rotation blind screwhole.
Specific in this example, in conjunction with accompanying drawing 1, the present technique scheme comprises outer sleeve 9; What be located at outer sleeve inside is interior coil 6, in the cavity between sleeve pipe 9 and the interior coil 6, adorns ball 10 outside; The screw hole of plug screw 8 is used to install ball 10, and ball 10 is added lubricating grease, interior coil 6 and cavity one end of the outer sleeve 9 dirt seal ring 11 of setting up defences; The other end is established secondary sealing 7; End flange 1 is connected with several socket head screws 2 with outer sleeve, in the cavity that flange 1, outer sleeve 9, interior coil 6 surround, installs wedge-type seal circle 3 successively, compresses end cap 4, hold down gag 5.
In conjunction with accompanying drawing 2; The seal arrangement of present technique scheme mainly comprises: multilayer wedge-type seal circle, compress end cap and hold down gag; The interior resonator end surface of the main hermetic terminal flange of multilayer wedge-type seal circle; Through compressing end cap, under the elastic force effect of hold down gag, remaining effective sealing to sealing surface.
Claims (8)
1. a wedge-type seal swivel joint is characterized in that comprising outer sleeve, interior coil and end flange; End flange is connected an end of outer sleeve; The inward turning pipe box is outside in the sleeve pipe, and is connected through bearing structure with outer sleeve;
First opening end of inner sleeve is connected with end flange is airtight, and this airtight connection structure connecting is:
If the end that is connected with flange of inner sleeve is the A end, the external diameter of inner sleeve A end is made as D1; If the end that is connected with outer sleeve of inner sleeve is the B end, the external diameter of inner sleeve B end is made as D2; D1＜D2; The inner sleeve side a and b constitutes ledge structure; Managing the blue end that is connected with inner sleeve is the C end, and the internal diameter of flange C end is made as D3, D1＜D3; Said inner sleeve A end inserts flange C end, between the inwall that the outer wall and the flange C of inner sleeve A end hold, the wedge-type seal circle is arranged; The wedge-type seal circle is pressed in the flange C end by compressing end cap; Also be connected with hold down gag between the said ledge structure that compresses end cap and inner sleeve outer wall.
2. wedge-type seal swivel joint according to claim 1 is characterized in that said wedge-type seal circle has multilayer, and each layer wedge-type seal circle is along the axially-aligned of flange.
3. wedge-type seal swivel joint according to claim 1 and 2 is characterized in that said hold down gag is a butterfly spring.
4. wedge-type seal swivel joint according to claim 1 is characterized in that the bearing structure that the inward turning pipe box is connected with outer sleeve is, all has corresponding circumferential raceway on the outer sleeve inner wall and on the outer wall of interior coil, and ball is installed in the raceway.
5. wedge-type seal swivel joint according to claim 4 is characterized in that on the outer wall of inward turning pipe B end, having circumferential dust sealing ring recess, is with seal ring in the sealing ring recess; The dust sealing ring recess is in the outside of raceway.
6. according to claim 4 or 5 described wedge-type seal swivel joints, it is characterized in that having circumferential secondary seal ring groove on the outer wall of inward turning pipe B end, be with seal ring in the sealing ring recess; The secondary seal ring groove is in the inboard of raceway.
7. wedge-type seal swivel joint according to claim 4 is characterized in that said raceway has two; The axially-aligned of two interior coils in raceway edge.
8. wedge-type seal swivel joint according to claim 1; The linkage structure that it is characterized in that an end of end flange and outer sleeve is; The periphery of end flange has a plurality of axial through holes, has the blind screwhole corresponding to this through hole on the end face of outer sleeve, and screw passes in the through hole rotation blind screwhole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200201420U CN202469307U (en) | 2012-01-17 | 2012-01-17 | Wedge-type seal rotary joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200201420U CN202469307U (en) | 2012-01-17 | 2012-01-17 | Wedge-type seal rotary joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202469307U true CN202469307U (en) | 2012-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200201420U Expired - Fee Related CN202469307U (en) | 2012-01-17 | 2012-01-17 | Wedge-type seal rotary joint |
Country Status (1)
| Country | Link |
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| CN (1) | CN202469307U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102664049A (en) * | 2012-03-23 | 2012-09-12 | 宁波天生密封件有限公司 | Exhaust gas sampling sealing device for high temperature gas cooled reactor |
| CN102927387A (en) * | 2012-11-18 | 2013-02-13 | 苏州蓝王机床工具科技有限公司 | Structure of rotary air inlet joint |
| CN103307440A (en) * | 2013-06-21 | 2013-09-18 | 连云港市拓普科技发展有限公司 | Special rotating joint for ultra-low-temperature fluid loading and unloading arm |
| CN103438308A (en) * | 2013-07-09 | 2013-12-11 | 中国人民解放军空军油料研究所 | Bidirectional fully-sealed rotary joint for fluid conveying |
| CN103644402A (en) * | 2013-12-11 | 2014-03-19 | 山东景津环保设备有限公司 | Rotary type pipeline connector of filter press |
| CN105719705A (en) * | 2014-12-01 | 2016-06-29 | 上海核工程研究设计院 | Outlet connection pipe in pressurized water reactor integral hydraulic simulation test |
-
2012
- 2012-01-17 CN CN2012200201420U patent/CN202469307U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102664049A (en) * | 2012-03-23 | 2012-09-12 | 宁波天生密封件有限公司 | Exhaust gas sampling sealing device for high temperature gas cooled reactor |
| CN102664049B (en) * | 2012-03-23 | 2015-07-29 | 宁波天生密封件有限公司 | High temperature gas cooled reactor exhaust sampling packoff |
| CN102927387A (en) * | 2012-11-18 | 2013-02-13 | 苏州蓝王机床工具科技有限公司 | Structure of rotary air inlet joint |
| CN103307440A (en) * | 2013-06-21 | 2013-09-18 | 连云港市拓普科技发展有限公司 | Special rotating joint for ultra-low-temperature fluid loading and unloading arm |
| CN103307440B (en) * | 2013-06-21 | 2015-07-15 | 连云港市拓普科技发展有限公司 | Special rotating joint for ultra-low-temperature fluid loading and unloading arm |
| CN103438308A (en) * | 2013-07-09 | 2013-12-11 | 中国人民解放军空军油料研究所 | Bidirectional fully-sealed rotary joint for fluid conveying |
| CN103644402A (en) * | 2013-12-11 | 2014-03-19 | 山东景津环保设备有限公司 | Rotary type pipeline connector of filter press |
| CN105719705A (en) * | 2014-12-01 | 2016-06-29 | 上海核工程研究设计院 | Outlet connection pipe in pressurized water reactor integral hydraulic simulation test |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20130117 |