CN207018534U - A kind of linear contact sealing ring - Google Patents
A kind of linear contact sealing ring Download PDFInfo
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- CN207018534U CN207018534U CN201720981020.0U CN201720981020U CN207018534U CN 207018534 U CN207018534 U CN 207018534U CN 201720981020 U CN201720981020 U CN 201720981020U CN 207018534 U CN207018534 U CN 207018534U
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Abstract
It the utility model is related to seal technical field, it is particularly a kind of to be applied to linear contact sealing ring of the hydrogenerator on blade, main shaft, runner, servomotor or large-scale ball valve, it includes a superimposed X-shaped sealing ring, at least two V-shaped seal rings and two support rings, the X-shaped sealing ring is through setting, the X-shaped sealing ring has end face a and the end face b relative with the end face a, and the V-type groove a being recessed in opposite directions and V-type groove b are provided with end face a and end face b.Beneficial effect is：Inter-module friction power loss is small, it is suitable for rotatory sealing or swings sealing and reciprocation sealing, good two way seal can be realized, it can realize that subdivision is installed when without splitting out whole parts, there is good mechanical strength and antiwear characteristic simultaneously, but also can be applied to eccentric and vibrations operating modes.
Description
Technical field
The utility model is related to seal technical field, particularly it is a kind of be applied to hydrogenerator in blade, main shaft, turn
Linear contact sealing ring on wheel, servomotor or large-scale ball valve.
Background technology
Because bulb through-flow turbine group and movable propeller turbine group need moving blade during operation
To adapt to different operating modes, when vane operation mechanism works, need to be lubricated between some rotatable parts and its seating surface, because
This, in order to improve rotational efficienty, is full of the pressure turbine oil with certain pressure in web, and is water under high pressure outside web
Stream, must in the contact position of blade and runner in order to prevent current from entering in web and prevent the oily outside seepage in web
Must installation sealing device.From the point of view of the operative practice in power station, the quality of runner and blade sealing structure performance is to ensureing unit just
Chang Yun plays the effect of key.
Therefore, the low sealing ring of a kind of good sealing effect under a certain pressure, energy consumption is invented to be particularly important.
Utility model content
The utility model is in order to make up the deficiencies in the prior art, there is provided a kind of good sealing effect, service life length it is close
Seal, solve problems of the prior art.
The utility model is achieved by the following technical solution：
A kind of linear contact sealing ring, including superimposed X-shaped sealing ring, at least two V-shaped seal rings and two
Support ring, for the X-shaped sealing ring through setting, the X-shaped sealing ring has end face a and the end face b relative with the end face a,
And the V-type groove a being recessed in opposite directions and V-type groove b are provided with end face a and end face b；
Preferably, the V-shaped seal ring be oppositely arranged with outwardly end face c and with the end face c and with to
The V-type groove c of sunken inside end face d, the V-shaped seal ring are respectively arranged at the end face a sides and end face of the X-shaped sealing ring
The end face c of b sides and the V-shaped seal ring and the X-shaped sealing ring end face a and end face b lean；
Preferably, the support ring has outwardly end face e and the end face f relative with the end face e, the support
The end face e of ring and the end face d of the V-shaped seal ring lean setting.
Preferably, the V words opening angle of V-type groove a and V-type the groove b, the end face c-axis of the V-shaped seal ring to cut
The protrusion angle in face and the protrusion angle of the end face e axial cross sections of the support ring are equal.
Preferably, the V words opening angle of the V-type groove c is more than the end face c-axis of the V-shaped seal ring to the convex of section
Go out angle.
It is further preferred that the V-type groove a and V-type groove b V words opening angle, the end face c of the V-shaped seal ring
The protrusion angle of axial cross section and the protrusion angle of the end face e axial cross sections of the support ring are equal to 90 °.
It is further preferred that the V words opening angle of the V-type groove c is equal to 100 °.
Preferably, the V-type groove a, V-type groove b and V-type groove the c equal rounding off of bottom land.
Preferably, the end face a and end face b of the X-shaped sealing ring outer rim extend to form the first sealing lip laterally.
Preferably, the outer rim of the V-shaped seal ring extends to form the second sealing lip laterally.
Preferably, the side wall of the X-shaped sealing ring caves inward setting.
Preferably, the material of the linear contact sealing ring is macromolecule polyurethane.
Compared with prior art, the beneficial effects of the utility model are：
Friction power loss is small between each component of the present utility model, is suitable for reciprocation sealing, rotatory sealing or swings sealing, because
It has multiple sealing rings, also can guarantee that airtight quality during low pressure, and can realize good two way seal, while has very
Good mechanical strength and antiwear characteristic, but also can be applied to eccentric and vibrations operating modes.
Brief description of the drawings
Fig. 1 is the axial sectional diagrammatical view illustration of the linear contact sealing ring of embodiment 1；
Fig. 2 is the axial sectional diagrammatical view illustration of the linear contact sealing ring installment state of embodiment 2；
Fig. 3 is the axial sectional diagrammatical view illustration of the linear contact sealing ring of embodiment 3；
Fig. 4 is the axial sectional diagrammatical view illustration of face Contact Seal ring.
Embodiment
To make what the technical scheme of the utility model embodiment and advantage expressed to become apparent from, below by accompanying drawing and implementation
Example, is described in further detail to the technical solution of the utility model.
Embodiment 1
Fig. 1 is the axial sectional diagrammatical view illustration of linear contact sealing ring of the present utility model, as shown in figure 1, this linear contact
Sealing ring passes through including superimposed 1, two V-shaped seal ring 2 of an X-shaped sealing ring and two support rings 3, the X-shaped sealing ring 1
Wear and put, the X-shaped sealing ring 1 has an end face a110 and end face b120 relative with the end face a110, and end face a110 and
The V-type groove a111 being recessed in opposite directions and V-type groove b121 are provided with the b120 of end face；The V-shaped seal ring 2 has outwardly
End face c210 and be oppositely arranged with the end face c210 and with V-type groove c221 the end face d220, the V to cave inward
Type sealing ring 2 is respectively arranged at end face a110 sides and end face b120 sides and the V-shaped seal ring 2 of the X-shaped sealing ring 1
End face c210 and the X-shaped sealing ring 1 end face a110 and end face b120 lean；The support ring 3 has outwardly
End face e310 and the end face f320 relative with the end face e310, the end face e310 of the support ring 3 and the V-shaped seal ring
2 end face d220 leans setting, and the V-type groove a111, V-type groove b121 and V-type groove c221 bottom land are round
Slip over and cross.
Wherein, the V words opening angle of V-type groove a111 and V-type the groove b121, the end face of the V-shaped seal ring 2
The protrusion angle of c210 axial cross sections and the protrusion angle of the end face e310 axial cross sections of the support ring 3 are 90 °.Meet
After mounting, it can be fitted close between X-shaped sealing ring 1, V-shaped seal ring 2 and support ring 3, improve sealing effectiveness.
And specifically, the V word opening angles of the V-type groove c221 are arranged to 100 ° and are larger than the V-seal
The protrusion angle of the end face c210 axial cross sections of circle 2, more spaces are provided while it is reached interference fit after installing, in order to avoid
Undue extruding occurs, further increases sealing effectiveness.
In addition, the end face a110 and end face b120 of the X-shaped sealing ring 1 outer rim extend to form the first sealing lip laterally
130, the outer rim of the V-shaped seal ring 2 extends to form the second sealing lip 230 laterally.After mounting by extruding described first
The sealing lip 230 of sealing lip 130 and second makes it be bonded grooved surface formation linear contact, realizes high performance sealing.
Further, the preferable material of this linear contact sealing ring is macromolecule polyurethane, has well elastic and excellent
Different trackability, it is wear-resisting the features such as.
Because the material of this sealing ring is macromolecule polyurethane, each seal is arranged on groove and by between sealing surface, has
Certain decrement and caused bounce, play pre-sealed effect.Due to pre-sealed effect, shiny surface and channel bottom are close
Contact.So when fluid enters groove by gap, a side of sealing ring can only be worked.When Fluid pressure is larger
When, crush seal circle simultaneously pushes it against another side of groove, pressure transmission is fed contact surface so that sealing ring is in high pressure shape
Sealing effectiveness under state is more preferably.This structure in the present embodiment can be by by the lateral incision of seal one, being then sequentially superimposed
The mode of installation realizes that subdivision is installed, and previous part and latter component stagger the position of otch corresponding angle during installation
Degree, multiple cooperations.Directly it can be installed in the case where need not all split out maintenance part, greatly simplified
Installation and the process of maintenance, have saved time and financial cost.
Embodiment 2
On the basis of above-described embodiment 1, this can also carry out following improvement using new, and the number of V-shaped seal ring 2 exists
It can adjust under specifically used requirement, i.e., as the pressure in sealing outside increases, and increase to be adapted to groove groove width
Some operating modes added, the number of used V-shaped seal ring 2 can be increased according to actual conditions, to meet well close
Feng Xing, as shown in Figure 2.In addition, it is necessary to, it is noted that oil storage tank 222 can also be offered on the V-type groove of V-shaped seal ring 2,
It forms oil storage space when coordinating and installing, and to increase the storage capacity of turbine oil, is offset the frictional force between seal.
It should be noted that the sealing ring with groove structure cannot carry out subdivision installation, if being cut because the one of sealing ring is surveyed,
Turbine oil can leak out inside groove.
Embodiment 3
As shown in figure 3, be also the improvement carried out on the basis of embodiment 1 in the present embodiment, therefore only to improved portion
Point illustrate, the side wall of X-shaped sealing ring 1 caves inward settings in the embodiment, more resistance to crowded so as to expand the useful space
Pressure, and corresponding thickness is reduced, placement and adjustment when being easily installed.
It is pointed out that sealing ring may be arranged as the form of face contact, Fig. 4 is that the axial direction of face Contact Seal ring is cut
Face schematic diagram, as shown in figure 4, surface be arranged in parallel between the X-shaped sealing ring and V-shaped seal ring of face contact sealing so that sealing
Part contact area greatly increases, so as to improve sealing property.But because its previous part and latter component are unlike linear close
The same corresponding angle that can stagger of seal, it is impossible to carry out subdivision installation, not as in embodiment 1 linear contact sealing ring installation,
It is easy to maintenance.
In summary, linear contact sealing ring of the present utility model has good self sealss performance, most importantly
Unit friction work consumption is small in low pressure range, is very suitable for rotatory sealing or swings sealing, low because it has multiple sealing rings
Also it can guarantee that airtight quality during pressure, but because V-shaped seal ring is V-type circle, easy deformation under high pressure, therefore be situated between suitable for work
Matter pressure is not easy excessive and high to friction energy loss requirement operating mode.But also it can be applied to eccentric and vibrations operating modes.
Above-described embodiment, the purpose of this utility model, technical scheme and beneficial effect are entered
One step describes in detail, should be understood that and the foregoing is only this practical embodiment, is not used to limit
The scope of protection of the utility model, it is all within the spirit and principles of the utility model, any modification for being made, equivalent substitution,
Improve etc., it should be included within the scope of protection of the utility model.
Claims (6)
1. a kind of linear contact sealing ring, it is characterised in that including a superimposed X-shaped sealing ring, at least two V-seals
Circle and two support rings, for the X-shaped sealing ring through setting, the X-shaped sealing ring has end face a and relative with the end face a
End face b, and the V-type groove a being recessed in opposite directions and V-type groove b are provided with end face a and end face b；The V-shaped seal ring has
Outwardly end face c and it is oppositely arranged with the end face c and close with the V-type groove c to cave inward end face d, the V-type
Seal be respectively arranged at the X-shaped sealing ring end face a sides and the end face c of end face b sides and the V-shaped seal ring with it is described
The end face a and end face b of X-shaped sealing ring lean；The support ring has outwardly end face e and relative with the end face e
End face f, the end face e of the support ring and the end face d of the V-shaped seal ring lean setting；The V-type groove a and V-type are recessed
Groove b V words opening angle, the end face c-axis of the V-shaped seal ring are to the protrusion angle in section and the end face e axles of the support ring
90 ° are equal to the protrusion angle in section；The V words opening angle of the V-type groove c is equal to 100 °.
2. a kind of linear contact sealing ring according to claim 1, it is characterised in that the V-type groove a, V-type groove b
With the V-type groove c equal rounding off of bottom land.
A kind of 3. linear contact sealing ring according to claim 1, it is characterised in that the end face a of the X-shaped sealing ring and
End face b outer rim extends to form the first sealing lip laterally.
A kind of 4. linear contact sealing ring according to claim 1, it is characterised in that the outer rim of the V-shaped seal ring to
Outside extends to form the second sealing lip.
A kind of 5. linear contact sealing ring according to claim 1, it is characterised in that the side wall of the X-shaped sealing ring 1 to
Sunken inside is set.
6. a kind of linear contact sealing ring according to any of the above-described claim, it is characterised in that the linear contact is close
The material of seal is macromolecule polyurethane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720981020.0U CN207018534U (en) | 2017-08-08 | 2017-08-08 | A kind of linear contact sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720981020.0U CN207018534U (en) | 2017-08-08 | 2017-08-08 | A kind of linear contact sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207018534U true CN207018534U (en) | 2018-02-16 |
Family
ID=61478469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720981020.0U Active CN207018534U (en) | 2017-08-08 | 2017-08-08 | A kind of linear contact sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207018534U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110005816A (en) * | 2019-03-29 | 2019-07-12 | 清华大学 | A kind of high pressure reciprocation sealing structure |
-
2017
- 2017-08-08 CN CN201720981020.0U patent/CN207018534U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110005816A (en) * | 2019-03-29 | 2019-07-12 | 清华大学 | A kind of high pressure reciprocation sealing structure |
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