CN206682299U - Be open special-shaped axle envelope - Google Patents
Be open special-shaped axle envelope Download PDFInfo
- Publication number
- CN206682299U CN206682299U CN201720301693.7U CN201720301693U CN206682299U CN 206682299 U CN206682299 U CN 206682299U CN 201720301693 U CN201720301693 U CN 201720301693U CN 206682299 U CN206682299 U CN 206682299U
- Authority
- CN
- China
- Prior art keywords
- axle envelope
- reinforcement
- shaped groove
- close
- shaped
- 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.)
- Active
Links
Abstract
A kind of special-shaped axle envelope that is open is the utility model is related to, including the opening on axle envelope body and axle envelope body, described this body section of axle envelope areShape, i.e., v-depression is set on square-section, and U-shaped groove is set again in the bottom of v-depression；Bending direction arc first reinforcement consistent with U-shaped groove is set close to U-shaped groove side in axle envelope body interior, the reinforcement of rectangle second is being set away from U-shaped groove side；Air chamber is set between the first reinforcement and the second reinforcement, and the air chamber is arc close to the first reinforcement side, is linear pattern close to the second reinforcement side.Axle envelope favorable sealing property of the present utility model, it is only necessary to more than two axle envelopes, with regard to good sealing effectiveness can be reached, and it is durable in use.
Description
Technical field
The utility model belongs to technical field of sealing technology, and in particular to the special-shaped axle envelope of one kind opening.
Background technology
Axle envelope is the sealing device for preventing leakage at pump shaft and housing and setting, conventional type of shaft sealing have packing seal,
Mechanical seal and power envelope.For packing seal, potted component or gasket body are to prevent the key component of leakage, often
With nonmetallic materials are twisted, braiding or lamination form, such as soft graphite, special asbestos, without asbestos, polytetrafluoroethylene (PTFE).Tradition
Axle envelope cross sectional shape is generally square, simple in construction, easily shaping.But because it is behind the pressure by gland axial direction, stress
Direction is more single, therefore the deformation of axle envelope is uncontrolled, irregular in the radially inside and outside both direction of fluid so as to cause
Leakage, therefore its sealing effectiveness still has much room for improvement.In addition, traditional axle envelope is prepared using single nonmetallic materials mostly, it is present
The problem of service life is short.
Utility model content
In view of the above-mentioned problems, the utility model aims to provide the opening abnormity of a kind of good seal performance and service life length
Axle envelope.
One kind is open special-shaped axle envelope, including the opening on axle envelope body and axle envelope body, described this body section of axle envelope areShape, i.e., v-depression is set on square-section, and U-shaped groove is set again in the bottom of v-depression；In axle envelope body
Portion sets bending direction arc first reinforcement consistent with U-shaped groove close to U-shaped groove side, is set away from U-shaped groove side
The reinforcement of rectangle second；Air chamber is set between the first reinforcement and the second reinforcement, and the air chamber is close to the first reinforcement
Side is arc, is linear pattern close to the second reinforcement side.
The axle envelope bulk material may be selected from this area conventional material, such as soft graphite.
Further, anticorrosive coat, preferably polytetrafluoroethylene anticorrosive coat are set in the outer surface of axle envelope body.Can effectively it prevent
The corrosion of soda acid etc., extend axle envelope service life.
Further, first reinforcement and the second reinforcement are flexible metal reinforcement, are effectively increased the strong of axle envelope
Degree, plays a protective role to axle envelope, extends axle envelope service life.
Axle envelope of the present utility model has the advantages that：
(1) it is provided with hatch frame, it is ensured that freely stretching after rubber ring compression.
(2) axle envelope section adds U-shaped groove again using v-depression bottom can effectively prevent medium leakage (through repeatedly examination
Checking, when axle envelope is applied under continually changing operating mode, during only with v-depression, dielectric leakage rate reaches more than 40%,
After adding U-shaped groove, 0%) dielectric leakage rate is.
The shape of (3) first reinforcements complies with v-depression and U-shaped groove, and the shape of the second reinforcement is then close with its institute
Linear side be adapted, it is more stable on mechanical structure, support protective effect it is stronger.
(4) air chamber is set between the first reinforcement and the second reinforcement, it, which act as making axle envelope to be extruded, increases its bullet
Property deformation quantity, strengthen its elasticity, make sealing effectiveness more preferable.The shape and axle envelope body shape of other air chamber are basically identical, body
Air chamber also accordingly thickens at material thickness, makes elastic deformation more balanced, ensures sealing effectiveness.
(5) compared to traditional square-section, this axle envelope is more easy to install, changes.
(6) axle envelope favorable sealing property of the present utility model, it is only necessary to more than two axle envelopes, with regard to good sealing can be reached
Effect, and it is durable in use.
Brief description of the drawings
The opening abnormal shape axle envelope dimensional structure diagram of Fig. 1 embodiments 1；
The axle envelope body sectional view of Fig. 2 embodiments 1；
The axle envelope body sectional view of Fig. 3 embodiments 2；
In Fig. 1-3：1-V connected in stars；2- axle envelope bodies；3- air chambers；4-U connected in stars；The reinforcements of 5- first；6- second strengthens
Muscle；7- is open；8- anticorrosive coats.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining this
Utility model, it is not used to limit the utility model.
Embodiment 1
Opening abnormity axle envelope as shown in Figure 1, including the opening 7 on axle envelope body 2 and axle envelope body 2.As shown in Fig. 2
The section of axle envelope body 2 isShape, i.e., v-depression 1 is set on square-section, and U is set again in the bottom of v-depression 1
Connected in star 4.Strengthen in the inside of axle envelope body 2 close to the arc first that the side of U-shaped groove 4 sets bending direction consistent with U-shaped groove 4
Muscle 5, the second reinforcement of rectangle 6 is being set away from the side of U-shaped groove 4, the first reinforcement 5 and the second reinforcement 6 are flexible gold
Belong to reinforcement.Air chamber 3 is set between the first reinforcement 5 and the second reinforcement 6, and air chamber 3 is arc close to the side of the first reinforcement 5
Shape, it is linear pattern close to the side of the second reinforcement 6.
Embodiment 2
As different from Example 1, anticorrosive coat 8 as shown in Figure 3 is set in the outer surface of axle envelope body 2.
It should be appreciated that for those of ordinary skills, can according to the above description be improved or converted,
And all these modifications and variations should all belong to the protection domain of the appended claims for the utility model.
Claims (3)
- The special-shaped axle envelope 1. one kind is open, it is characterised in that including the opening (7) on axle envelope body (2) and axle envelope body (2), institute Stating axle envelope body (2) section isShape, i.e., v-depression (1) is set on square-section, and in the bottom of v-depression (1) U-shaped groove (4) is set again；It is internal close to U-shaped groove (4) side setting bending direction and U-shaped groove (4) one in axle envelope body (2) The reinforcement of arc first (5) of cause, the reinforcement of rectangle second (6) is being set away from U-shaped groove (4) side；In the first reinforcement (5) air chamber is set between the second reinforcement (6), and the air chamber is arc close to the first reinforcement (5) side, is strengthened close to second Muscle (6) side is linear pattern.
- 2. the special-shaped axle envelope of opening according to claim 1, it is characterised in that set in the outer surface of axle envelope body (2) anti- Rotten layer (8).
- 3. the special-shaped axle envelope of opening according to claim 1, it is characterised in that first reinforcement (5) and second is strengthened Muscle (6) is flexible metal reinforcement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720301693.7U CN206682299U (en) | 2017-03-27 | 2017-03-27 | Be open special-shaped axle envelope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720301693.7U CN206682299U (en) | 2017-03-27 | 2017-03-27 | Be open special-shaped axle envelope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206682299U true CN206682299U (en) | 2017-11-28 |
Family
ID=60391051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720301693.7U Active CN206682299U (en) | 2017-03-27 | 2017-03-27 | Be open special-shaped axle envelope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206682299U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108105382A (en) * | 2017-12-21 | 2018-06-01 | 合肥仨力机械制造有限公司 | A kind of locking type high leakproofness seal washer |
| CN108105379A (en) * | 2017-12-21 | 2018-06-01 | 合肥仨力机械制造有限公司 | A kind of locking type high leakproofness seal washer of quick deformation |
-
2017
- 2017-03-27 CN CN201720301693.7U patent/CN206682299U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108105382A (en) * | 2017-12-21 | 2018-06-01 | 合肥仨力机械制造有限公司 | A kind of locking type high leakproofness seal washer |
| CN108105379A (en) * | 2017-12-21 | 2018-06-01 | 合肥仨力机械制造有限公司 | A kind of locking type high leakproofness seal washer of quick deformation |
| CN108105382B (en) * | 2017-12-21 | 2019-05-21 | 合肥仨力机械制造有限公司 | A kind of locking type high leakproofness seal washer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206682299U (en) | Be open special-shaped axle envelope | |
| CN102644738A (en) | Metal winding gasket | |
| CN203670792U (en) | Elastic filler and valve using the filler | |
| CN203023479U (en) | Seal gasket for motor vehicle | |
| CN202252092U (en) | Ball valve provided with double radial bearing valve rod | |
| CN218267214U (en) | Ultrahigh pressure-resistant corrosion-resistant sealing element | |
| CN107461493A (en) | A kind of metal spring accumulation of energy sealing ring | |
| CN2472014Y (en) | Stop valve | |
| CN203322298U (en) | Butterfly valve | |
| CN206398083U (en) | A kind of rotation shaft seal and sealing device | |
| CN202852263U (en) | Alloy O-shaped sealing ring | |
| CN207486096U (en) | A kind of hard sealing double eccentric half ball valve | |
| CN206175666U (en) | Two skeleton oil blanket spares | |
| CN106090235B (en) | A kind of frame winch compressed air slewing equipment | |
| CN202901288U (en) | Delf-seal packing | |
| CN205678121U (en) | Wear-resistant gasket seal | |
| CN205478184U (en) | Hydrogen ammonia piston compressor filler device | |
| CN205504281U (en) | High pressure resistant self sealss whirl compensator | |
| CN208564961U (en) | A kind of plastic eccentric ring | |
| CN208442382U (en) | Ball valve integral type tetrafluoro bellows valve rod seal structure | |
| CN207961517U (en) | A kind of high-temperature and high-presure resistent Composition spacer | |
| CN203880277U (en) | Novel flange gasket | |
| CN208252578U (en) | Glass reinforced plastic hermetic seal shaft | |
| CN109084026A (en) | A kind of compound sealing structure of shaft outside shell | |
| CN204533789U (en) | A kind of high temperature butterfly valve valve shaft seal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |