CN107676481A - The highly dense seal apparatus of engineering hydraulic cylinder - Google Patents
The highly dense seal apparatus of engineering hydraulic cylinder Download PDFInfo
- Publication number
- CN107676481A CN107676481A CN201711170262.2A CN201711170262A CN107676481A CN 107676481 A CN107676481 A CN 107676481A CN 201711170262 A CN201711170262 A CN 201711170262A CN 107676481 A CN107676481 A CN 107676481A
- Authority
- CN
- China
- Prior art keywords
- keeper
- hydraulic cylinder
- highly dense
- seal apparatus
- engineering hydraulic
- 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.)
- Pending
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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
- F16J15/16—Sealings between relatively-moving surfaces
-
- 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
- F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
- F16J9/28—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction of non-metals
Abstract
The invention discloses a kind of highly dense seal apparatus of engineering hydraulic cylinder, include the shim body of elasticity, at least three keeper holes are provided with the shim body, keeper is embedded with keeper hole, the keeper thickness is less than the thickness of shim body, and each keeper thickness is equal；Adherent layer is respectively arranged with the shim body two sides, the adherent layer includes base fabric, and release coating is coated with base fabric；The adherent layer is connected by adhesive layer with shim body.The highly dense seal apparatus of engineering hydraulic cylinder using the present invention can not only ensure sealing effectiveness, and can guarantee that the size for connection precision between two parts component being combined, and can repeatedly use.
Description
Technical field
The present invention relates to a kind of engineering machinery hydraulic cylinder, more particularly to a kind of gasket seal being used in handling machinery.
Background technology
Various hydraulic packing pads are be unable to do without with hydraulic cylinder in engineering machinery, with preventing lubricating oil therein, transmission
The air-liquid such as medium body leaks, and is mostly made up used herein of pad of elastomeric material, by the complete transmission case body two parts of composition
Between connecting bolt or pipeline, container combination face two parts between connecting bolt come make gasket seal produce elastic deformation,
So as to eliminate the manufacturing deficiency and position deviation on correlated parts faying face, it will not produce and let out between guarantee two parts faying face
Leakage.But because gasket seal is elastomer, two parts that one side transmission case body, pipeline or container are combined are being combined into one
When its mutual size for connection reform into and not can determine that, what its size depended on connecting bolt tightens up degree, and bolt is tightened up
Degree is big, then gasket seal elastic deformation is big, and the size for connection between transmission case body two parts just diminishes, otherwise just big, such
The occasion for having sizing requirement between two parts component that uncertainty is combined to transmission case body, pipeline or container is brought
Problem, it is impossible to ensure its installation dimension precision；On the other hand, pad is deformed for a long time in the course of the work, pad and phase
Bonding is produced between the machine accessory of contact, causes two parts that transmission case body, pipeline or container are combined needing detachable maintaining
When pad can be torn in unloading process and cause to damage, thus pad substantially can only be disposable, causes equipment to make
With the increase of cost, and pad relic bonding between corresponding machine accessory is also fairly cumbersome in scale removal process, equipment dimension
Repairing time and cost all will increase.
The content of the invention
For the above-mentioned deficiency present in prior art, the technical problems to be solved by the invention are to provide a kind of engineering and used
The highly dense seal apparatus of hydraulic cylinder, it not only can guarantee that sealing effectiveness, and can guarantee that the connection chi between two parts component being combined
Very little precision, and can repeatedly use.
In order to solve the above-mentioned technical problem, a kind of highly dense seal apparatus of engineering hydraulic cylinder of the invention, the pad of elasticity is included
Piece body, at least three keeper holes are provided with the shim body, keeper, the positioning are embedded with keeper hole
Part thickness is less than the thickness of shim body, and each keeper thickness is equal；It is respectively arranged with the shim body two sides anti-sticking
Layer, the adherent layer include base fabric, release coating are coated with base fabric；The adherent layer is connected by adhesive layer with shim body.
In said structure, due to being provided with least three keeper holes in the shim body, in keeper hole
Embedded with keeper, then gasket seal transmission case body, pipeline or the component of container two connect with reference to when compressed and played close
Envelope acts on, and the spacing distance between transmission case body, pipeline or the component of container two is then positioned the keeper institute being embedded in part hole
Limit, at least three keepers can guarantee that the sizing requirement and position between transmission case body, pipeline or container two parts component
Put required precision；Again because the keeper thickness is less than the thickness of shim body, each keeper thickness is equal, then shim body can
Suitably to increase thickness, enough elastic deformation amounts are made it have, so that it is guaranteed that the sealing of transmission case body, pipeline or container, and
Each keeper thickness is equal, ensure that the accuracy positioned between the component of transmission case body two being combined, it is inclined will not to produce position
Tiltedly；Due also to be respectively arranged with adherent layer in the shim body two sides, then shim body two sides and the needs being connected
Isolated between the component surface of sealing by set adherent layer, shim body will not produce between respective members surface
Raw contact, would not also produce bonding between the component being in contact, and pad passes through between adherent layer and respective members surface
Be in contact, adherent layer has good pick resistance, and bonding will not be produced between the component being in contact, so transmission case,
When the parts such as gas-liquid pipeline or other containers need to check, repair or change and be opened, corresponding pad can more easily with
Separated between the component being in contact, the problem of pad is torn in unloading process would not also occur, so as to be repeated several times
Use；Again because the adherent layer includes base fabric, release coating is coated with base fabric, then the adherent layer had both had flexible well
Property, the sealing effectiveness of pad is not interfered with, there is preferable intensity again, release coating, which is coated in base fabric, also has corresponding jail
Degree, is not easy to be damaged；More because the adherent layer is connected by adhesive layer with shim body, then between adherent layer energy and shim body
It is connected as a single entity well, is easily installed use, will not be separated during dismounting.
A kind of preferred embodiment of the present invention, chamfering is provided with keeper hole aperture.Using the embodiment, fixed
It is embedded in keeper hole can to ensure that shim body will not be located at when elastic deformation is produced after compression after the orifice chamfer of position part hole
In the keeper both ends of the surface of dress, so that it is guaranteed that the positioning precision between the component of transmission case two.
Another preferred embodiment of the present invention, the keeper is cylinder or strip shape body.Using the embodiment,
The keeper of cylinder is easily manufactured, and the keeper of strip shape body can have larger length dimension, can meet large-scale pad
Positioning requirements.
Another preferred embodiment of the present invention, the strip shape body is rectangular strip body, kidney ellipsoid strip shape body or circular arc
Shape strip shape body.Using the embodiment, the strip shape body of rectangle or kidney ellipsoid is simple in construction, adapts to the shim body with straight flange
Requirement, circular arc strip shape body adapts to the requirement of circular or circular arc side pad.
Further preferred embodiment of the present invention, the shim body are annular, and the keeper hole is circumferentially equal
Cloth, the keeper are cylinder or circular arc strip shape body；The keeper hole is evenly distributed in annular gasket body
Between circle and outer ring, the inner radii of annular gasket body is r1, outer radii r2, the radius of the circle where keeper hole
R is equal to 3/8~5/8（r1+r2）.Using the embodiment, each keeper hole can be made to be in annular gasket body perimeter
Middle part, ensure to be respectively provided with a certain distance between keeper hole and shim body inner ring or outer ring, so as to ensure sealing effect
Fruit, and the keeper of cylinder or circular arc strip shape body adapts to the shape and structure requirement of annular gasket body, keeper hole
The keeper that being evenly distributed can make wherein to be embedded in reaches preferable locating effect.
Another further preferred embodiment of the present invention, the shim body are straight-flanked ring, and the keeper hole is along week
To being distributed between rectangular loop shim body inner ring and outer ring, the keeper is rectangular strip body or kidney ellipsoid strip shape body.
Using the embodiment, the keeper of rectangle or kidney ellipsoid strip shape body adapts to the shape knot of the rectangular washer body with straight flange
Structure requirement.
The another further preferred embodiment of the present invention, the base fabric is glass fabric.Using the embodiment, glass
Glass fiber cloth intensity is higher without losing pliability, can guarantee that the intensity requirement and seal request of adherent layer.
The further preferred embodiment of the present invention, the release coating is PTFE resin.Using the embodiment,
PTFE resin material has excellent anti-adhesion performance, while also has excellent resistance to chemical corrosion and heat-resisting quantity performance,
Its accommodation is extensive.
Another further preferred embodiment of the present invention, the adhesive layer is silica gel adhesive layer.Using the embodiment party
Formula, silica gel absorption performance is high, heat endurance is good, chemical property is stable, has higher mechanical strength, and shim body can be met with preventing
Connection request between adhesion coating.
The another further preferred embodiment of the present invention, the shim body is asbestos-packing gasket.Using the reality
Mode is applied, the performance of asbestos-packing gasket can be lifted by the setting of adherent layer, can repeatedly use, have
Higher economy.
Brief description of the drawings
The highly dense seal apparatus of engineering hydraulic cylinder of the present invention is made with specific embodiment below in conjunction with the accompanying drawings further detailed
Explanation.
Fig. 1 is a kind of structural representation of embodiment of the highly dense seal apparatus of engineering hydraulic cylinder of the present invention；
Fig. 2 is the sectional view of structure shown in Fig. 1；
Fig. 3 is the partial enlarged view at A positions in structure shown in Fig. 2；
Fig. 4 is the structural representation of the another embodiment of keeper in structure shown in Fig. 1；
Fig. 5 is the structural representation of another embodiment of keeper in structure shown in Fig. 1；
Fig. 6 is the structural representation of the highly dense seal apparatus another embodiment of engineering hydraulic cylinder of the present invention.
In figure：1- shim bodies, 2- adherent layers, 21- base fabrics, 22- release coatings, 3- keepers hole, 4- chamferings,
5- keepers, 6- adhesive layers.
Embodiment
In the highly dense seal apparatus of engineering hydraulic cylinder shown in Fig. 1, Fig. 2 and Fig. 3, shim body 1 is annular plates,
It is made up of flexible asbestos rubber material, three keeper holes 3 is provided with shim body 1, keeper hole 3 is circumferentially
It is distributed between the inner ring of annular gasket body 1 and outer ring, the inner radii of annular gasket body 1 is r1, and outer radii is
R2, the center of circle and the center of circle of annular gasket body 1 of the circumference where each keeper hole 3 are arranged concentrically, where keeper hole 3
Round radius R is located at 3/8~5/8（r1+r2）Between.The aperture of keeper hole 3 is provided with chamfering 4.It is embedding in each keeper hole 3
Equipped with keeper 5, keeper 5 is ferrous materials or the rigid body of other materials, shape and size and the keeper 5 in keeper hole 3
Shape and size it is corresponding, keeper 5 is cylinder, the thickness of a height of keeper 5 of the cylinder, certainly, keeper 5
Can be the strip shape body of circular arc as shown in Figure 5, Inner arc and the external arc of the circular arc strip shape body are arranged concentrically, and in it
The radius of center circular arc between circular arc and external arc is exactly the radius R of the circle where keeper hole 3, the height of circular arc strip shape body
For the thickness of keeper 5, the thickness of keeper 5 is less than the thickness of shim body 1, and each thickness of keeper 5 is equal；In shim body 1
Two sides are respectively arranged with adherent layer 2, and the adherent layer 2 is connected by adhesive layer 6 with shim body 1, and adhesive layer 6 is using silicon material
The silica gel adhesive layer that material viscose glue is formed, adherent layer 2 include base fabric 21, and base fabric 21 is glass fabric, is coated in base fabric 21
There is release coating 22, release coating 22 is PTFE resin.
Above is certain specific embodiments of the invention, but the present invention is not limited to this, can also make more
Improve and conversion, such as described shim body 1 can also be straight-flanked ring plates, see Fig. 6, and the keeper hole 3 is circumferentially distributed
Between the inner ring of rectangular loop shim body 1 and outer ring, keeper 5 is kidney ellipsoid strip shape body or square as shown in Figure 4
Shape strip shape body；The shim body 1 can also be the annular slice body of other arbitrary shapes；Also may be used in the shim body 1
Not to be provided with three keeper holes 3, and it can be four or more keeper holes 3；The shim body 1 can also be
The pad of other nonmetallic materials such as rubber.And so on, as long as improvement made on the basis of its general principles
With conversion, it is regarded as falling within the scope of protection of the present invention.
Claims (10)
1. a kind of highly dense seal apparatus of engineering hydraulic cylinder, include the shim body of elasticity（1）, it is characterised in that：In the pad
Body（1）On be provided with least three keeper holes（3）, in keeper hole（3）In be embedded with keeper（5）, the keeper（5）
Thickness is less than shim body（1）Thickness, each keeper（5）Thickness is equal；In the shim body（1）Two sides are set respectively
There is adherent layer（2）, the adherent layer（2）Including base fabric（21）, in base fabric（21）It is upper to be coated with release coating（22）；The adherent layer
（2）Pass through adhesive layer（6）With shim body（1）It is connected.
2. the highly dense seal apparatus of engineering hydraulic cylinder according to claim 1, it is characterised in that：In keeper hole（3）Aperture
It is provided with chamfering（4）.
3. the highly dense seal apparatus of engineering hydraulic cylinder according to claim 1, it is characterised in that：The keeper（5）For circle
Cylinder or strip shape body.
4. the highly dense seal apparatus of engineering hydraulic cylinder according to claim 3, it is characterised in that：The strip shape body is rectangular strip
Shape body, kidney ellipsoid strip shape body or circular arc strip shape body.
5. the highly dense seal apparatus of engineering hydraulic cylinder according to claim 1, it is characterised in that：The shim body（1）For
Annular, the keeper hole（3）It is evenly distributed, the keeper（5）For cylinder or circular arc strip shape body；The positioning
Part hole（3）It is evenly distributed in annular gasket body（1）Between inner ring and outer ring, annular gasket body（1）Inner ring half
Footpath is r1, outer radii r2, keeper hole（3）The radius R of the circle at place is equal to 3/8~5/8（r1+r2）.
6. the highly dense seal apparatus of engineering hydraulic cylinder according to claim 1, it is characterised in that：The shim body（1）For
Straight-flanked ring, the keeper hole（3）It is circumferentially distributed in rectangular loop shim body（1）Between inner ring and outer ring, the positioning
Part（5）For rectangular strip body or kidney ellipsoid strip shape body.
7. the highly dense seal apparatus of engineering hydraulic cylinder according to claim 1, it is characterised in that：The base fabric（21）For glass
Fiber cloth.
8. the highly dense seal apparatus of engineering hydraulic cylinder according to claim 1, it is characterised in that：The release coating（22）For
PTFE resin.
9. the highly dense seal apparatus of engineering hydraulic cylinder according to claim 1, it is characterised in that：The adhesive layer（6）For silicon
Glue adhesive layer.
10. the highly dense seal apparatus of engineering hydraulic cylinder according to claim 1, it is characterised in that：The shim body（1）For
Asbestos-packing gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711170262.2A CN107676481A (en) | 2017-11-22 | 2017-11-22 | The highly dense seal apparatus of engineering hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711170262.2A CN107676481A (en) | 2017-11-22 | 2017-11-22 | The highly dense seal apparatus of engineering hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107676481A true CN107676481A (en) | 2018-02-09 |
Family
ID=61149766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711170262.2A Pending CN107676481A (en) | 2017-11-22 | 2017-11-22 | The highly dense seal apparatus of engineering hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107676481A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| LU44723A1 (en) * | 1962-11-08 | 1963-12-30 | ||
| CN104884744A (en) * | 2012-10-31 | 2015-09-02 | 通用电气公司 | Film riding aerodynamic seals for rotary machines |
| CN205244390U (en) * | 2015-12-24 | 2016-05-18 | 宁波旭升汽车技术股份有限公司 | Automobile pad |
| CN205663879U (en) * | 2016-06-03 | 2016-10-26 | 象山兴辉气动液压机械厂 | Hydraulic sealing member |
| CN205956381U (en) * | 2016-08-30 | 2017-02-15 | 中国长江电力股份有限公司 | Retainer plate reinforcement device |
| CN206268446U (en) * | 2016-12-09 | 2017-06-20 | 南通科诚橡塑机械有限公司 | A kind of banbury axle end sealing device |
| CN206377270U (en) * | 2016-12-23 | 2017-08-04 | 新能能源有限公司 | High pressure batcher sealing device for rotary shaft |
| CN207621350U (en) * | 2017-11-17 | 2018-07-17 | 东台市富康机械有限公司 | The highly dense seal apparatus of engineering hydraulic cylinder |
-
2017
- 2017-11-22 CN CN201711170262.2A patent/CN107676481A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| LU44723A1 (en) * | 1962-11-08 | 1963-12-30 | ||
| CN104884744A (en) * | 2012-10-31 | 2015-09-02 | 通用电气公司 | Film riding aerodynamic seals for rotary machines |
| CN205244390U (en) * | 2015-12-24 | 2016-05-18 | 宁波旭升汽车技术股份有限公司 | Automobile pad |
| CN205663879U (en) * | 2016-06-03 | 2016-10-26 | 象山兴辉气动液压机械厂 | Hydraulic sealing member |
| CN205956381U (en) * | 2016-08-30 | 2017-02-15 | 中国长江电力股份有限公司 | Retainer plate reinforcement device |
| CN206268446U (en) * | 2016-12-09 | 2017-06-20 | 南通科诚橡塑机械有限公司 | A kind of banbury axle end sealing device |
| CN206377270U (en) * | 2016-12-23 | 2017-08-04 | 新能能源有限公司 | High pressure batcher sealing device for rotary shaft |
| CN207621350U (en) * | 2017-11-17 | 2018-07-17 | 东台市富康机械有限公司 | The highly dense seal apparatus of engineering hydraulic cylinder |
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| 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 | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180209 |