CN207363601U - Combined seal ring and rock bit - Google Patents
Combined seal ring and rock bit Download PDFInfo
- Publication number
- CN207363601U CN207363601U CN201721450897.3U CN201721450897U CN207363601U CN 207363601 U CN207363601 U CN 207363601U CN 201721450897 U CN201721450897 U CN 201721450897U CN 207363601 U CN207363601 U CN 207363601U
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- China
- Prior art keywords
- sealing ring
- rock bit
- ring
- combined seal
- seal ring
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- 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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Abstract
The utility model provides a kind of combined seal ring and rock bit, wherein, the combined seal ring includes：First sealing ring and be set in first sealing ring outer circumferential face the second sealing ring；First sealing ring is teflin ring, its circumferential medial surface is in contact with the surfaces of revolution of the axle journal of rock bit, the axially external face of second sealing ring and the gear wheel of rock bit lean, the rock bit applies squeezing action power to second sealing ring, under the squeezing action power, second sealing ring applies radially first sealing ring and is directed toward the even resilient active force of the axle journal.The one side friction coefficient that the combined seal ring of the utility model is opposite with axle journal is small, advantageously reduces the energy consumption of rock bit.Meanwhile the combined seal ring of the utility model can produce lasting sealing force, the service life of sealing ring is effectively extended.
Description
Technical field
It the utility model is related to mechanical drilling drilling tool technical field, more particularly to a kind of combined seal ring and there is its tooth
Take turns drill bit.
Background technology
Rock bit be it is a kind of apply very extensive probing drilling tool, its when drill rock, by its gear wheel rotation and
Interaction force between rock rolls, impact grinding, achievees the purpose that to destroy rock stratum.It is close inside rock bit in order to realize
Envelope, rock bit are internally provided with sealing ring.However, with the use of rock bit, its internal sealing ring can be ground
Damage, and then influence the service life of the leakproofness and sealing ring inside rock bit.
Therefore, in view of the above-mentioned problems, being necessary to propose further solution.
Utility model content
The purpose of this utility model is to provide a kind of combined seal ring and rock bit, existed in the prior art with overcoming
Deficiency.
To realize above-mentioned purpose of utility model, the utility model provides a kind of combined seal ring, it is applied to rock bit
Sealing, the combined seal ring includes：First sealing ring and be set in first sealing ring outer circumferential face second
Sealing ring；
First sealing ring is teflin ring, the surfaces of revolution of the axle journal of its circumferential medial surface and rock bit
It is in contact, the axially external face of second sealing ring and the gear wheel of rock bit lean, and the rock bit is to described
Two sealing rings apply squeezing action power, and under the squeezing action power, second sealing ring applies first sealing ring
Radial direction is simultaneously directed toward the even resilient active force of the axle journal.
As the improvement of the combined seal ring of the utility model, it is further opened with the circumferential medial surface of first sealing ring
Some annular grooves.
As the improvement of the combined seal ring of the utility model, the cross sectional shape of the groove is rectangle.
As the improvement of the combined seal ring of the utility model, second sealing ring is viton seal ring.
As the improvement of the combined seal ring of the utility model, first sealing ring and the second sealing ring are coaxially disposed.
To realize above-mentioned purpose of utility model, the utility model provides a kind of rock bit, the axle journal of the rock bit
Sealing ring as described above is provided between gear wheel.
Compared with prior art, the beneficial effects of the utility model are：The combined seal ring of the utility model and axle journal phase
To one side friction coefficient it is small, advantageously reduce the energy consumption of rock bit.Meanwhile the combined seal ring of the utility model can produce
Raw lasting sealing force, effectively extends the service life of sealing ring.
Brief description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments described in the utility model, for those of ordinary skill in the art, is not making the creative labor
On the premise of, other attached drawings can also be obtained according to these attached drawings.
Fig. 1 is the axial cross-sectional views of an embodiment of the combined seal ring of the utility model；
Fig. 2 is the sectional view of an embodiment of the rock bit of the utility model.
Embodiment
The utility model is described in detail in shown each embodiment below in conjunction with the accompanying drawings, but it should explanation,
These embodiments are not limitation of the utility model, and those of ordinary skill in the art are according to these embodiment institute works
Energy, method or equivalent transformation or replacement in structure, belong within the scope of protection of the utility model.
As shown in Figure 1, the combined seal ring 10 of the utility model is applied to the sealing of rock bit, it includes：First is close
Seal 1 and be set in first sealing ring 1 outer circumferential face the second sealing ring 2.Preferably, first sealing ring 1
It is coaxially disposed with the second sealing ring 2.
Wherein, first sealing ring 1 is teflin ring, the axle journal of its circumferential medial surface and rock bit
The surfaces of revolution is in contact.Since teflin ring friction coefficient is small, so as to which reduce the influence rotated to axle journal, favorably
In the energy consumption for reducing rock bit.Further, in order to further reduce the friction between first sealing ring 1 and axle journal
Power, is further opened with some annular grooves on the circumferential medial surface of first sealing ring 1.So as to, by setting the groove,
The contact area between first sealing ring 1 and axle journal is reduced, and then reduces friction force therebetween.It is preferred that
Ground, the cross sectional shape of the groove is rectangle.
Second sealing ring 2 is used to provide lasting elastic acting force for first sealing ring 1, so that described the
One sealing ring 1 produces lasting sealing force, effectively extends the service life of sealing ring.
Specifically, the axially external face of second sealing ring 2 and the gear wheel of rock bit lean, the rock bit
Squeezing action power is applied to second sealing ring 2, under the squeezing action power, second sealing ring 2 is to described first
Sealing ring 1 applies radially and is directed toward the even resilient active force of the axle journal so that first sealing ring 1 can abut axle journal
Realize lasting sealing.Preferably, second sealing ring 2 is viton seal ring, and it is elastic good which has,
High temperature resistant, at a high temperature of 250 degree will not aging the advantages of.
As shown in Fig. 2, being based on combined seal ring as described above, the utility model also provides a kind of rock bit 20, institute
State and sealing ring 10 as described above is provided between the axle journal 21 of rock bit 20 and gear wheel 22.
In conclusion the combined seal ring of the utility model it is opposite with axle journal one side friction coefficient it is small, advantageously reduce
The energy consumption of rock bit.Meanwhile the combined seal ring of the utility model can produce lasting sealing force, effectively extend
The service life of sealing ring.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of the spirit or essential attributes without departing substantially from the utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this practicality is new
The scope of type is indicated by the appended claims rather than the foregoing description, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are embraced therein.Any reference numeral in claim should not be considered as limitation
Involved claim.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical solution, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (6)
1. a kind of combined seal ring, it is applied to the sealing of rock bit, it is characterised in that the combined seal ring includes：The
One sealing ring and be set in first sealing ring outer circumferential face the second sealing ring；
First sealing ring is teflin ring, its circumferential medial surface connects with the surfaces of revolution of the axle journal of rock bit
Touch, the axially external face of second sealing ring and the gear wheel of rock bit lean, and the rock bit is close to described second
Seal applies squeezing action power, and under the squeezing action power, second sealing ring applies radially first sealing ring
And it is directed toward the even resilient active force of the axle journal.
2. combined seal ring according to claim 1, it is characterised in that on the circumferential medial surface of first sealing ring also
Offer some annular grooves.
3. combined seal ring according to claim 2, it is characterised in that the cross sectional shape of the groove is rectangle.
4. combined seal ring according to claim 1, it is characterised in that second sealing ring is viton seal ring.
5. combined seal ring according to claim 1, it is characterised in that first sealing ring and the second sealing ring are coaxial
Set.
A kind of 6. rock bit, it is characterised in that between the axle journal and gear wheel of the rock bit set just like claim 1 to
5 any one of them sealing rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721450897.3U CN207363601U (en) | 2017-11-03 | 2017-11-03 | Combined seal ring and rock bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721450897.3U CN207363601U (en) | 2017-11-03 | 2017-11-03 | Combined seal ring and rock bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207363601U true CN207363601U (en) | 2018-05-15 |
Family
ID=62346053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721450897.3U Active CN207363601U (en) | 2017-11-03 | 2017-11-03 | Combined seal ring and rock bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207363601U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110984864A (en) * | 2019-12-25 | 2020-04-10 | 西南石油大学 | Roller bit seal structure |
-
2017
- 2017-11-03 CN CN201721450897.3U patent/CN207363601U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110984864A (en) * | 2019-12-25 | 2020-04-10 | 西南石油大学 | Roller bit seal structure |
| CN110984864B (en) * | 2019-12-25 | 2022-03-15 | 西南石油大学 | Roller bit seal structure |
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| GR01 | Patent grant |