CN109268501A - It is a kind of can radial compensation radial seal structure - Google Patents
It is a kind of can radial compensation radial seal structure Download PDFInfo
- Publication number
- CN109268501A CN109268501A CN201811271732.9A CN201811271732A CN109268501A CN 109268501 A CN109268501 A CN 109268501A CN 201811271732 A CN201811271732 A CN 201811271732A CN 109268501 A CN109268501 A CN 109268501A
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- CN
- China
- Prior art keywords
- ring
- retaining ring
- radial
- seal structure
- ring retaining
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
Abstract
It is a kind of can radial compensation radial seal structure, it is especially a kind of for a kind of reusable radial seal structure of radial compensation of heavy caliber high pressure power, it can be used as heavy caliber high pressure power shell and form seal chamber progress liquid gas pressure strength test, and its radial seal for heavy mechanical equipment Large diameter high pressure, flexible type flange.The technical solution that diameter becomes larger after the present invention is squeezed using outer ring retaining ring and inner ring retaining ring, eliminate large-diameter flanged radial deformation under high pressure it is big caused by sealing leak the problem of, guarantee at elevated pressures step sealing axis blanking cover and it is large-diameter flanged between radial seal still can guarantee reliable sealing.
Description
Technical field
The present invention relates to it is a kind of can radial compensation radial seal structure, it is especially a kind of to be weighed for heavy caliber high pressure power
A kind of radial seal structure of the radial compensation used again can be used as heavy caliber high pressure power shell and form seal chamber progress liquid gas
Compressive Strength test, and its for the radial seal of heavy mechanical equipment Large diameter high pressure, flexible type flange.
Background technique
The radial seal structure of common F4 retaining ring+O-shaped rubber ring is widely used in the mechanical seal of circular hole shells, but by
It is large-diameter flanged at elevated pressures in the limitation of its retaining ring structure, the flange arrangement easily-deformable applied to heavy caliber high pressure power
Diameter becomes larger, blanking cover is displaced and deforms with respect to flange, makes to generate gap between them, is easy to squeeze out retaining ring into gap, destroy O-shaped
The radial seal of rubber ring, leads to refrigerant leakage.
Summary of the invention
Technical problem solved by the present invention is overcome the deficiencies in the prior art, is unable to radial compensation flange to solve retaining ring
The problem of deformation, provide a kind of simple structure and reliable sealing, structure novel, it is adaptable can radial compensation radial seal
Structure.
The technical solution of the invention is as follows: it is a kind of can radial compensation radial seal structure, including outer ring retaining ring, inner ring
Retaining ring, O-shaped rubber ring and blanking cover；One end face of blanking cover, which is equipped with, seals axis, the step with the step for needing air locking to cooperate
Seal the conduit being equipped on the outside of axis for installing outer ring retaining ring, inner ring retaining ring and O-shaped rubber ring；The outer ring retaining ring, inner ring gear
Circle and O-shaped rubber ring are directed toward in the axial direction for needing air locking along step sealing axis to be sequentially arranged, and the inner ring retaining ring is fixed
The step seals axis lateral wall, keeps sealing in the circumferential with step sealing axis；The outer ring retaining ring edge is axially located at
On the inner ring retaining ring, the outer ring retaining ring keeps sealing in the circumferential with inner ring retaining ring, and there are gaps in the axial direction, and can
Relative movement；The inner ring retaining ring is close to O-shaped rubber ring in the axial direction, and the fixed step of O-shaped rubber ring seals outside axis
Side wall；The outer ring retaining ring and O-shaped rubber ring abutting need air locking.
Further, it is inclined-plane on the outside of the inner ring retaining ring, is and inclined-plane on the outside of inner ring retaining ring on the inside of the outer ring retaining ring
The inclined-plane of cooperation.
Further, the gap between the outer ring retaining ring and inner ring retaining ring is 0.5~2mm.
Further, circumferentially have on the outside of the blanking cover for the axial hole location that needs air locking to be fixedly connected,
The blanking cover is bolted to connection with air locking is needed；The axial direction hole location is located on the outside of step sealing axis.
Further, the outer ring retaining ring and the outer ledge of O-shaped rubber ring and step sealing axis outer ledge are neat
It is flat.
Further, the material of the outer ring retaining ring and inner ring retaining ring is PEEK.
Further, the compression ratio of the O-shaped rubber ring is 10%~25%.
Further, the material of the step sealing axis is steel alloy.
The advantages of the present invention over the prior art are that: it is knockdown using outer ring retaining ring and inner ring retaining ring in the present invention
Structure after inner ring retaining ring is by the extruding of O-shaped rubber ring, can be squeezed into outer ring retaining ring along the inclined-plane of outer ring retaining ring, outer ring is kept off
The diameter support of circle is big, the large-diameter flanged deformation that can be sealed in this way with radial compensation；And material is higher using hardness
PEEK, will not occur cold flow at elevated pressures, and combination retaining ring gear guarantees O-shaped rubber ring between O-shaped rubber ring and gap
Sealing.
Detailed description of the invention
Fig. 1 is the two-dimentional assembling structure schematic diagram of sealing structure of the invention；
Fig. 2 is the two-dimentional assembling structure enlarged diagram of sealing structure of the invention；
Fig. 3 is the phase of the invention for being mounted in outer ring retaining ring, inner ring retaining ring, O-shaped rubber ring and sealing the blanking cover of axis with step
To Standard schematic diagram；
Fig. 4 is the phase of the invention for being mounted in outer ring retaining ring, inner ring retaining ring, O-shaped rubber ring and sealing the blanking cover of axis with step
To Standard enlarged diagram；
The cutting structural schematic diagram that Fig. 5 is outer ring retaining ring of the invention, inner ring retaining ring, O-shaped rubber ring combine；
Fig. 6 is the cutting structural schematic diagram of outer ring retaining ring of the invention；
Fig. 7 is the cutting structural schematic diagram of inner ring retaining ring of the invention；
Fig. 8 is the cutting structural schematic diagram of O-shaped rubber ring of the invention；
Fig. 9 is the cutting structural schematic diagram of the blanking cover of the invention that axis is sealed with step.
Specific embodiment
It is further described with reference to the accompanying drawings of the specification.
Such as Fig. 1, for it is of the invention it is a kind of can radial compensation radial seal structure, i.e., citation form of the invention.Such as Fig. 2
~5, it is made of outer ring retaining ring 1, inner ring retaining ring 2, O-shaped rubber ring 3, blanking cover 4, hexagon-headed bolt 5 with step sealing axis；Such as
Fig. 9, outer ring retaining ring 1, inner ring retaining ring 2, O-shaped rubber ring 3 are successively assemblied on the step sealing axis 4 of blanking cover, they are mounted in quilt
In the large-diameter flanged sealing cylinder of sealing；O-shaped rubber ring 3 is radially compressed to form initial sealing, and compresses inner ring retaining ring 2
With outer ring retaining ring 1, inner ring retaining ring 2 squeezes into outer ring retaining ring 1, and the diameter of outer ring retaining ring 1 is supportted to the heavy caliber method big, compensation is sealed
Blue radial deformation, hexagon-headed bolt 5 compress large-diameter flanged and with step sealing axis the connection of blanking cover 4 sealed, shape
At reliable sealing structure.The present invention is kept off by the way that former common retaining ring is designed as the combination that outer ring retaining ring 1 and inner ring retaining ring 2 form
Circle, is compacted the characteristics of rear diameter becomes larger for outer ring retaining ring 1, inner ring retaining ring 2, can compensate the large-diameter flanged high pressure sealed
Lower diameter become larger caused sealing leak the problem of, form reliable sealing structure.In short, the present invention can be radial using one kind
The radial seal structure of compensation can form sealing structure on stepped hole, reliable to seal.
The principle of above scheme is: seal assembly is made of outer ring retaining ring 1, inner ring retaining ring 2 and O-shaped rubber ring 3, inner ring gear
Circle 2 is put into outer ring retaining ring 1, and O-shaped rubber ring 3 forms sealing after being radially compressed, and the pressure difference on 3 both sides of O-shaped rubber ring will push O
Type rubber ring 3 squeezes inner ring retaining ring 2, and inner ring retaining ring 2 squeezes into the inside of outer ring retaining ring 1, the diameter quilt of outer ring retaining ring 1 along inclined-plane
Inner ring retaining ring 2 supports the deformation of radial compensation flange and blanking cover 4 greatly, guarantees the radial seal of O-shaped rubber ring 3 and blanking cover 4 and flange
Reliably.
Such as Fig. 6~9, retaining ring is made of outer ring retaining ring 1 and inner ring retaining ring 2, and diameter can support greatly after being compressed, and material uses
The higher PEEK material of hardness, retaining ring are domain retaining ring.Outer ring retaining ring 1 is connect with inner ring retaining ring 2 radial through inclined-plane；Assembly
The distance between outer ring retaining ring 1 and inner ring retaining ring 2 are 0.5~2mm, preferably 1mm after good.O-shaped rubber after seal chamber pressure rise
Pressure difference promotion inner ring retaining ring 2 between cushion rubber 3 squeezes into the gap of 1mm in outer ring retaining ring 1, while the diameter support of outer ring retaining ring 1 is big,
Make up under high pressure large-diameter flanged 5 diameter become larger caused by sealing leak the problem of.By the design of above structure, in height
Under pressure guarantee step sealing axis blanking cover and it is large-diameter flanged between radial seal still can guarantee reliable sealing.
Its principle is: outer diameter becomes larger after the inner ring retaining ring 2 and outer ring retaining ring 1 that material is PEEK are pressurized, and will not send out under high pressure
Raw and cold flow phenomenon destroys sealing after can preventing O-shaped rubber ring 3 from squeezing into gap.
The content that description in the present invention is not described in detail belongs to the well-known technique of those skilled in the art.
Claims (8)
1. one kind can radial compensation radial seal structure, it is characterised in that: including outer ring retaining ring (1), inner ring retaining ring (2), O-shaped
Rubber ring (3) and blanking cover (4)；(4) one end face of blanking cover, which is equipped with, seals axis, the step with the step for needing air locking to cooperate
Seal the conduit being equipped on the outside of axis for installing outer ring retaining ring (1), inner ring retaining ring (2) and O-shaped rubber ring (3)；The outer ring gear
Circle (1), inner ring retaining ring (2) and O-shaped rubber ring (3) are directed toward in the axial direction for needing air locking successively cloth along step sealing axis
It sets, the fixed step of inner ring retaining ring (2) seals axis lateral wall, keeps sealing in the circumferential with step sealing axis；
The outer ring retaining ring (1) is along being axially located on the inner ring retaining ring (2), and the outer ring retaining ring (1) and inner ring retaining ring (2) are in circumferential direction
Upper holding sealing, there are gaps in the axial direction, and can relatively move；The inner ring retaining ring (2) is close to O-shaped rubber in the axial direction
It encloses (3), the fixed step of O-shaped rubber ring (3) seals axis lateral wall；The outer ring retaining ring (1) and O-shaped rubber ring (3)
Abutting needs air locking.
2. one kind according to claim 1 can radial compensation radial seal structure, it is characterised in that: the inner ring retaining ring
(2) outside is inclined-plane, is the inclined-plane with inclined-plane cooperation on the outside of inner ring retaining ring (2) on the inside of the outer ring retaining ring (1).
3. one kind according to claim 1 can radial compensation radial seal structure, it is characterised in that: the outer ring retaining ring
(1) gap between inner ring retaining ring (2) is 0.5~2mm.
4. one kind according to claim 1 can radial compensation radial seal structure, it is characterised in that: the blanking cover (4)
Outside circumferentially have for the axial hole location that needs air locking to be fixedly connected, the blanking cover (4) and need air locking logical
Bolt is crossed to be fixedly connected；The axial direction hole location is located on the outside of step sealing axis.
5. one kind according to claim 1 can radial compensation radial seal structure, it is characterised in that: the outer ring retaining ring
(1) it is flushed with the outer ledge of O-shaped rubber ring (3) with step sealing axis outer ledge.
6. one kind according to claim 1 can radial compensation radial seal structure, it is characterised in that: the outer ring retaining ring
It (1) is PEEK with the material of inner ring retaining ring (2).
7. one kind according to claim 1 can radial compensation radial seal structure, it is characterised in that: the O-shaped rubber
The compression ratio for enclosing (3) is 10%~25%.
8. one kind according to claim 1 can radial compensation radial seal structure, it is characterised in that: step sealing
The material of axis is steel alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811271732.9A CN109268501A (en) | 2018-10-29 | 2018-10-29 | It is a kind of can radial compensation radial seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811271732.9A CN109268501A (en) | 2018-10-29 | 2018-10-29 | It is a kind of can radial compensation radial seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109268501A true CN109268501A (en) | 2019-01-25 |
Family
ID=65194953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811271732.9A Pending CN109268501A (en) | 2018-10-29 | 2018-10-29 | It is a kind of can radial compensation radial seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109268501A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2367842Y (en) * | 1999-03-16 | 2000-03-08 | 四川太兴房屋开发有限公司 | Compound motive sealing device of superhigh pressure reciprocating rod |
| CN1342250A (en) * | 1999-03-03 | 2002-03-27 | S&B技术产品公司 | Dual purpose insertion force gasket |
| CN101440873A (en) * | 2008-12-09 | 2009-05-27 | 镇江大力液压马达有限责任公司 | Compound type rotating axle seal |
| CN101608690A (en) * | 2008-06-20 | 2009-12-23 | 南京理工大学 | Self-tightening end face sealing device under variable high pressure condition |
| CN201731065U (en) * | 2010-08-18 | 2011-02-02 | 徐州科源液压有限公司 | Hydraulic braking combination seal for planetary reducer |
| CN206530708U (en) * | 2017-02-28 | 2017-09-29 | 广州加士特密封技术有限公司 | A kind of anti-high pressure combines general plug sealing ring |
| CN107735605A (en) * | 2015-04-21 | 2018-02-23 | 益保密封有限公司 | Shaft seal assembly |
| CN108050256A (en) * | 2017-11-29 | 2018-05-18 | 中国飞机强度研究所 | A kind of high temperature and high pressure kettle wide arc gap compensating type sealing device |
| CN108291650A (en) * | 2015-12-15 | 2018-07-17 | Nok株式会社 | Sealing device |
-
2018
- 2018-10-29 CN CN201811271732.9A patent/CN109268501A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1342250A (en) * | 1999-03-03 | 2002-03-27 | S&B技术产品公司 | Dual purpose insertion force gasket |
| CN2367842Y (en) * | 1999-03-16 | 2000-03-08 | 四川太兴房屋开发有限公司 | Compound motive sealing device of superhigh pressure reciprocating rod |
| CN101608690A (en) * | 2008-06-20 | 2009-12-23 | 南京理工大学 | Self-tightening end face sealing device under variable high pressure condition |
| CN101440873A (en) * | 2008-12-09 | 2009-05-27 | 镇江大力液压马达有限责任公司 | Compound type rotating axle seal |
| CN201731065U (en) * | 2010-08-18 | 2011-02-02 | 徐州科源液压有限公司 | Hydraulic braking combination seal for planetary reducer |
| CN107735605A (en) * | 2015-04-21 | 2018-02-23 | 益保密封有限公司 | Shaft seal assembly |
| CN108291650A (en) * | 2015-12-15 | 2018-07-17 | Nok株式会社 | Sealing device |
| CN206530708U (en) * | 2017-02-28 | 2017-09-29 | 广州加士特密封技术有限公司 | A kind of anti-high pressure combines general plug sealing ring |
| CN108050256A (en) * | 2017-11-29 | 2018-05-18 | 中国飞机强度研究所 | A kind of high temperature and high pressure kettle wide arc gap compensating type sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190125 |
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| RJ01 | Rejection of invention patent application after publication |