CN204784718U - Sealing structure - Google Patents
Sealing structure Download PDFInfo
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- CN204784718U CN204784718U CN201520236223.8U CN201520236223U CN204784718U CN 204784718 U CN204784718 U CN 204784718U CN 201520236223 U CN201520236223 U CN 201520236223U CN 204784718 U CN204784718 U CN 204784718U
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- seal ring
- elastic
- orifice
- elastic seal
- sealing configuration
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Abstract
The product incorporating the design is a sealing structure that sealing performance is better. The utility model provides a sealing structure include an axle spare and with this piece matched with hole piece, install the elasticity sealing washer between axle and the hole piece, thereby this sealing structure still maintains the pressure compensation mechanism that certain laminating was done all can including being used for extrudeing between inner circle that the elasticity sealing washer made this elasticity sealing washer and the axle piece surface. This sealing structure is equipped with pressure compensation mechanism, through the extrusion to elasticity sealing element, makes the sufficient laminating that keeps that it can be steady in a long -term do all can to elasticity sealing element keeps good inseparable laminating between axle spare and hole piece, improve sealing structure's performance.
Description
Technical field
The utility model relates to a kind of sealing configuration, particularly relates to the sealing configuration that a kind of hole axle coordinates.
Background technique
Its core position of a kind of sealing configuration that claimant uses at present in filtrating equipment is the sealing configuration between shaft member and orifice with matching.Sealing structure comprises the filter core joint 10 as shaft member, the orifice plate 20 as orifice, elastic seal ring 3 form.Filter core joint 10 is installed on orifice plate 20 by the cooperation of this device passing hole axle, its aperture plate 20 comprises the up-hole plate 201 and orifice plate 202 that are connected to each other, up-hole plate 201 compresses whole sealing configuration and uses fastening piece fastening, and the upper-end surface of orifice plate 202 is provided with step chamber groove 5.Elastic seal ring 3 is arranged in the step chamber groove 5 between filter core 10 and orifice plate 20, after whole device installation is fastening, is completed the sealing of filter core joint 10 and orifice plate 20 by the elastic dilatation of elastic seal ring 3 in the groove of step chamber.
But in above-mentioned sealing configuration, can filter core joint 10 and orifice plate 20 the good sealability of long term maintenance, often depend on the elastic dilatation ability that can elastic seal ring 3 keep enough steadily in the long term, can keep sealing between filter core joint 10 and orifice plate 20 steadily in the long term fitting.But in actual applications, along with the increase of operating time, elastic seal ring 3 because of own material is aging and and the impact of external environment condition, elastic dilatation ability is reduced very fast, little by little cannot keep enough adhesive forces between filter core joint 10 and orifice plate 20, thus make to occur seal failure between filter core joint 10 and orifice plate 20, and when sealing realize phenomenon occur in a device time, often because detect delayed, cannot safeguard sealing configuration in time and correct, until seal failure acquires a certain degree and causes impact to production application.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of sealability better sealing configuration.
For achieving the above object, the orifice that sealing configuration provided by the utility model comprises a shaft member and matches with this shaft member, be provided with elastic seal ring between described shaft member and orifice, sealing structure also comprises for extruding elastic seal ring thus making to maintain between the inner ring of this elastic seal ring and shaft member outer surface the pressure compensation mechanism of certain adhesive force.Sealing structure is provided with pressure compensation mechanism, by the extruding to elastic sealing elements, make the adhesive force that maintenance that it can be steady in a long-term is enough, thus elastic sealing elements keeps good fitting tightly between shaft member and orifice, improves the performance of sealing configuration.
Further, above-mentioned pressure compensation mechanism comprises and is arranged on the elastic dilatation structure that elastic seal ring periphery is compressive state, described elastic dilatation structure and elasticity seal ring effect, and adjustment self decrement adapted to and balancing with elastic seal ring confining force.This elastic dilatation mechanism can make pressure compensation realize automatically regulating, and reaches the transfer of elastic potential energy, thus make the pressure compensation that sealing configuration can remain certain according to effect equilibrium of forces between elastic dilatation structure and elasticity seal ring.
Further, described elastic dilatation structure comprises the elastic element in compressive state and between this elastic element and elastic seal ring, realizes the equal pressing plate of power transmission.Obtain suitable pressure compensation parameter by the setting of the load of elastic dilatation structure elastic element, deformation rigidity and sensitivity; By being arranged on the equal pressing plate between elastic element and elastic seal ring in elastic dilatation structure, thus increase the area of contact of elastic element and elastic seal ring, the active force making unit area is more even, it also avoid both unbalance stress and the material aging that causes.
Further, above-mentioned equal pressing plate is selected to be made up of rigid material, and can be made as different-thickness size according to actual needs.Thus all pressing plate can not have an impact to pressure compensation effect because of material feature own; Be made as different-thickness size according to actual needs simultaneously, can the fabrication error in sealing configuration be offset.
Further, above-mentioned pressure compensation mechanism is designed to extrude from axial direction elastic seal ring.Being designed to axially to carry out pressure compensation makes the installation and maintenance of sealing configuration easier.
Further, above-mentioned elastic element is designed to ring rotation spring, and this ring rotation spring is made up of corrosion-resistant oxidation-resistant material.Be designed to ring rotation spring simple installation in hole axle coordinates, the parameter setting method such as material, string diameter, rotating center diameter of this ring rotation spring is simple, can realize controlling load, deformation rigidity and the convenient of sensitivity, and this ring rotation shape form Absorbable organic halogens storage elasticity potential energy, can provide pressure compensation steady in a long-term to elastic seal ring; This annular spring adopts corrosion-resistant oxidation-resistant material, lowers this pressure compensation mechanism and is subject to the pollution of working environment and impurity and affects performance, realizes pressure compensation mechanism long-term stability and runs.
Accompanying drawing explanation
Fig. 1 is one existing hole axle fitted seal structure mentioned in background technique.
Fig. 2 be mention in embodiment carry out pressure compensated sealing configuration at axial direction.
Fig. 3 be mention in embodiment carry out pressure compensated sealing configuration in radial direction.
Fig. 4 is the ring rotation springs structural drawing mentioned in embodiment.
Fig. 5 be in Fig. 5 A-A to cross-sectional view.
Embodiment
Embodiment 1 is a kind of hole axle fitted seal structure of carrying out elastic pressure compensation at axial direction as shown in Figure 2, and sealing structure comprises in shaft member 1, orifice 2, elastic seal ring 3, pressure compensation mechanism 4 and orifice 2 and forming for the step chamber groove 5 installing seal element.Wherein orifice 2 comprises the upper orifice 21 and lower orifice 22 that are connected to each other, upper orifice 21 compresses whole sealing configuration and uses fastening piece fastening, the upper-end surface of lower orifice 22 is provided with step chamber groove 5, and this step chamber groove 5 forms a counter sink with the upper-end surface of lower orifice 22; Pressure compensation mechanism 4 comprises that to be arranged on elastic seal ring 3 periphery be the elastic element 41 of compressive state and the equal pressing plate 42 between this elastic element 41 and elastic seal ring 3.
The assembling of this structure is coordinated by shaft member 1 and lower orifice 22 to install, again elastic seal ring 3, all pressing plate 42, elastic element 41 are installed in the step chamber groove 5 between shaft member 1 and orifice 2, in this step chamber groove 5, erection sequence is elastic seal ring 3-equal pressing plate 42-elastic element 41 from top to bottom successively, higher than lower orifice 22 after the installation of its elastic element 41, and elastic element 41 is highly consistent to each other, finally compresses by orifice 21 again and uses fastening piece fastening.Specifically, in this example, elastic seal ring 3 adopts O RunddichtringO, and string diameter increases 20% ~ 50% on existing Commonly Used Size basis, and namely string diameter is 3.5 ~ 5.25 millimeters, increases its decrement to increase sealability; Equal pressing plate 42 uses rigid material to make, and equal pressing plate 42 is generally designed to the multiple different-thickness in 0.5 ~ 1.5 millimeter, can different size be selected according to actual needs to apply; Elastic element 41 is designed to ring rotation spring, and this ring rotation spring design is ring rotation springs 410, this ring rotation springs 410 structural drawing is see Fig. 4 and Fig. 5, this ring rotation springs 410 adopts corrosion-resistant oxidation-resistant material to make, such as stainless steel, Hastelloy, Langaloy etc.
After above-mentioned sealing configuration is installed, its working method is: upper orifice 21 compress fastening after can to pressure compensation mechanism 4 and elastic seal ring 3 actuating pressure, in this hole axle fitted seal structure, upper orifice 21 directly acts on elastic element 41 i.e. ring rotation springs 410, the elastic potential energy that this ring rotation springs 410 is stored by himself deformation and elastic seal ring 3 is provided to the pressure compensation of elastic dilatation character, and not only in the storage of elastic potential energy, conveniently there is stable characteristic due to the design of this ring rotation sheet, and its low price, manufacturing process is simple, convenient for installation and maintenance.Above-mentioned pressure can act on equal pressing plate 42 by ring rotation springs 410, to act on elastic seal ring 3 after the effect of being under pressure of equal pressing plate 42, in this embodiment, the axial freedom of equal pressing plate 42 is unrestricted, axial displacement can be carried out in ring rotation springs 410 with the state of elastic seal ring 3, and all pressing plate 42 can increase the area of contact of ring rotation springs 410 and elastic seal ring 3, make active force in unit area more even, thus make can avoid unbalance stress between the two and accelerate aging; All pressing plate 42 adopts rigid material to make simultaneously, reduces material to the impact of power effect, also can increase working life; In addition, equal pressing plate 42 is arranged between ring rotation springs 410 from elastic seal ring 3 can select different thickness and quantity to offset the fabrication error in sealing configuration according to actual needs, and then improves sealability.
Embodiment 2 is a kind of hole axle fitted seal structure of carrying out elastic pressure compensation in radial direction as shown in Figure 3, and this structure comprises in shaft member 1, orifice 2, elastic seal ring 3, pressure compensation mechanism 4 and orifice 2 and forming for the step chamber groove 5 installing seal element.Wherein orifice 2 comprises the upper orifice 21 and lower orifice 22 that are connected to each other, wherein descends the upper-end surface of orifice 22 to be provided with step chamber groove 5, and this step chamber groove 5 forms a counter sink with the upper-end surface of lower orifice 22; Pressure compensation mechanism 4 comprises that to be arranged on elastic seal ring 3 periphery be the elastic element 41 of compressive state and the equal pressing plate 42 between this elastic element 41 and elastic seal ring 3.
The assembling of this structure is coordinated by shaft member 1 and lower orifice 22 to install, again elastic seal ring 3, all pressing plate 42, elastic element 41 are installed in the step chamber groove 5 between shaft member 1 and orifice 2, erection sequence is elastic seal ring 3-equal pressing plate 42-elastic element 41 by axle center from inside to outside successively, wherein elastic seal ring 3 and elastic element 41 be not added by natural length during external force with the radial width that need be greater than step chamber groove 5.Specifically, elastic seal ring 3 and the material that elastic element 41 is selected and Construction designing can select to catch up with that to state in embodiment 1 consistent.Between elastic seal ring 3 and elastic element 41, profile is designed to thin rounded flakes ring by equal pressing plate 42, and this thin rounded flakes ring design is axially wide, radial thin, makes this equal pressing plate 42 can be arranged between elastic element 41 as Fig. 3; This equal pressing plate 42 adopts the larger material of rigidity.Until elastic seal ring 3, all pressing plate 42, elastic sealing elements 41 are after installation in step chamber groove 5, and in utilization, orifice 21 compresses fastening.
After above-mentioned sealing configuration is installed, its working method is: make its tool by certain elastic potential energy by the compression of elastic element 41 in step chamber groove 5, and elastic element 41 is acted on and reached equilibrium of forces by radial direction and elastic seal ring 3; When elastic seal ring 3 decrement is not enough, elastic element 41 adjusts self decrement, and then in this hole axle fitted seal structure, maintain certain elastic pressure compensation.
In addition to the implementation, the utility model can also carry out other changes within the scope of the claims:
Such as pressure compensation mode can be set to rigid pressure compensation way.Shaft member 1 and the orifice 2 that matches with this shaft member 1 are equipped with elastic seal ring 3, wherein orifice 2 is divided into orifice 21 and lower orifice 22, upper orifice 21 arranges some and tapped through holes that quantity suitable identical with axle center distance of center circle, and arbitrary tapped through hole center and elastic seal ring 3 central coaxial, at this tapped hole, corresponding bolt is installed, by controlling the tightness of bolt, thus realization carries out extruding in various degree to elastic seal ring 3.When elastic seal ring 3 decrement is not enough, by carrying out fastening to some bolts in upper orifice 21, bolt can be increased to elastic seal ring 3 squeezing action power, realizing the pressure compensation of elastic seal ring 3.In this example, between elastic seal ring 3 and bolt, setting up equal pressing plate 42 can make total more optimize.
Certainly; the utility model can also when not deviating from the utility model spirit and essence thereof; those of ordinary skill in the art are when making various corresponding change and distortion according to the utility model, but these change accordingly and are out of shape the protection domain that all should belong to the claim affiliated by the utility model.
Claims (10)
1. sealing configuration, the orifice (2) comprising a shaft member (1) and match with this shaft member (1), elastic seal ring (3) is installed between described shaft member (1) and orifice (2), it is characterized in that: sealing structure also comprises for extruding elastic seal ring (3) thus making to maintain between the inner ring of this elastic seal ring (3) and shaft member (1) outer surface the pressure compensation mechanism (4) of certain adhesive force.
2. sealing configuration as claimed in claim 1, it is characterized in that: described pressure compensation mechanism (4) comprises and is arranged on the elastic dilatation structure that elastic seal ring (3) periphery is compressive state, described elastic dilatation structure and elasticity seal ring (3) contact self decrement of adaptive adjustment and balance with elastic seal ring (3) confining force.
3. sealing configuration as claimed in claim 2, is characterized in that: described elastic dilatation structure comprises the elastic element (41) in compressive state and between this elastic element (41) and elastic seal ring (3), realizes the equal pressing plate (42) of power transmission.
4. sealing configuration as claimed in claim 3, is characterized in that: described equal pressing plate (42) is specifically made up of rigid material.
5. sealing configuration as described in claim 3 or 4, is characterized in that: described pressure compensation mechanism (4) to be arranged between shaft member (1) and orifice (2) and to carry out axial compression to the end face of elastic seal ring (3); Described shaft member (1) or orifice (2) are provided with step chamber groove (5) holding pressure compensation mechanism (4) and elastic seal ring (3).
6. sealing configuration as claimed in claim 5, it is characterized in that: described elastic element (41) and equal pressing plate (42) are loop configuration, and this equal pressing plate (42) axial clamp is placed between annular elastic element (41) and elastic seal ring (3).
7. sealing configuration as claimed in claim 6, is characterized in that: described elastic element (41) is a ring rotation shape spring.
8. sealing configuration as claimed in claim 7, is characterized in that: described ring rotation shape spring is made up of corrosion-resistant oxidation-resistant material.
9. sealing configuration as claimed in claim 5, it is characterized in that: described orifice (2) comprises the upper orifice (21) and lower orifice (22) that are connected to each other, and described step chamber groove (5) is arranged on the upper-end surface of lower orifice (22) and forms a counter sink; Described elastic element (41) axial compression is between upper orifice (21) lower end surface and elastic seal ring (3) upper-end surface.
10. sealing configuration as described in claim 1,2,3 or 4, is characterized in that: the axial thickness of described elastic seal ring (3) is 3.5 ~ 5.25mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520236223.8U CN204784718U (en) | 2015-04-20 | 2015-04-20 | Sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520236223.8U CN204784718U (en) | 2015-04-20 | 2015-04-20 | Sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204784718U true CN204784718U (en) | 2015-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520236223.8U Active CN204784718U (en) | 2015-04-20 | 2015-04-20 | Sealing structure |
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| CN (1) | CN204784718U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084243A (en) * | 2017-06-07 | 2017-08-22 | 洛阳理工学院 | A kind of sealing device of sewer pipe inspection cover |
| CN107874352A (en) * | 2017-12-04 | 2018-04-06 | 洛阳理工学院 | A kind of shoes of sole arrangement angled section spring |
-
2015
- 2015-04-20 CN CN201520236223.8U patent/CN204784718U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084243A (en) * | 2017-06-07 | 2017-08-22 | 洛阳理工学院 | A kind of sealing device of sewer pipe inspection cover |
| CN107874352A (en) * | 2017-12-04 | 2018-04-06 | 洛阳理工学院 | A kind of shoes of sole arrangement angled section spring |
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