CN208122760U - Oil-gas Separation seals rock bit - Google Patents
Oil-gas Separation seals rock bit Download PDFInfo
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- CN208122760U CN208122760U CN201820235075.1U CN201820235075U CN208122760U CN 208122760 U CN208122760 U CN 208122760U CN 201820235075 U CN201820235075 U CN 201820235075U CN 208122760 U CN208122760 U CN 208122760U
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- bit
- oil
- sealing ring
- gear wheel
- gas separation
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Abstract
The utility model provides a kind of Oil-gas Separation sealing rock bit comprising：Bit leg, the axle journal for being set to described bit leg one end and the gear wheel being set on the axle journal；The air flue for offering oil duct inside the bit leg and being independently arranged with the oil duct, the outlet end of the air flue extends to outlet position, the first sealing ring of axial seal and the second sealing ring of radial seal are provided between the gear wheel and the axle journal, first sealing ring is contained in the first groove of the gear wheel inner hole step end face, second sealing ring is contained in the second groove of the bit leg journel, first groove is opened on the step surface of the gear wheel bottom surface, and the step surface of the gear wheel and the end face of the bit leg lean.The utility model is designed with dual-seal, has good leakproofness and intensity.In addition, the utility model has air flue independent and oil duct, wherein air flue is conducive to the cooling of sealing ring, extends the service life of sealing ring.
Description
Technical field
The utility model relates to a kind of rock bit more particularly to a kind of Oil-gas Separation to seal rock bit.
Background technique
Rock bit is a kind of very widely used probing drilling tool, when drill rock, by its gear wheel rotation and
Interaction force between rock rolls, impact grinding, achievees the purpose that destroy rock stratum.Rock bit is in probing, broken rock
Bits, dregs may enter inside cone bit bearing, wear damage cone bit bearing, and that shortens rock bit uses the longevity
Life.Therefore, in view of the above-mentioned problems, it is necessary to propose further solution.
Utility model content
The purpose of this utility model is to provide a kind of Oil-gas Separations to seal rock bit, is existed in the prior art with overcoming
Deficiency.
To realize above-mentioned purpose of utility model, the utility model provides a kind of Oil-gas Separation sealing rock bit comprising：
Bit leg, the axle journal for being set to described bit leg one end and the gear wheel being set on the axle journal；
Prolong the outlet end of the air flue for offering oil duct inside the bit leg and being independently arranged with the oil duct, the air flue
Extend to outlet position, be provided between the gear wheel and the axle journal axial seal the first sealing ring and radial seal second
Sealing ring, first sealing ring are contained in the first groove of the gear wheel inner hole step end face, and second sealing ring is received
It is dissolved in the second groove of the bit leg journel, first groove is opened on the step surface of the gear wheel inner hole, the tooth
The step surface of wheel and the end face of the bit leg lean.
The improvement of Oil-gas Separation sealing rock bit as the utility model, the air flue is along the bit leg length direction
It is extended, there is the air inlet being set on the bit leg and the venthole positioned at the bit leg journel end face.
The improvement of Oil-gas Separation sealing rock bit as the utility model, between the axle journal and gear wheel described in formation
The cooling air channel for the gas that venthole blows, the first groove where first sealing ring are connected with the cooling air channel.
The improvement of Oil-gas Separation sealing rock bit as the utility model, at the oil-passage inlet in the bit leg
It is additionally provided with pushing off the slag pipe.
The improvement of Oil-gas Separation sealing rock bit as the utility model, first sealing ring is rectangular seal
Circle.
The improvement of Oil-gas Separation sealing rock bit as the utility model, second sealing ring is O-ring seals.
The improvement of Oil-gas Separation sealing rock bit as the utility model, the shirttail of the bit leg are contained in form institute
In the groove for stating gear wheel inner hole step surface.
The improvement of Oil-gas Separation sealing rock bit as the utility model, the palm back carbide button of the bit leg is close to institute
State the shirttail setting of bit leg.
Compared with prior art, the utility model has the beneficial effects that：The Oil-gas Separation of the utility model seals rotary drill
Head is designed equipped with dual-seal, has reliable leakproofness.First of sealing mainly plays dust-proof, sealing ring cooperation outlet
The compressed air that mouth comes out can effectively prevent silt, dust etc. to enter second sealing, relatively clear for second sealing creation
Clean external environment.Second sealing mainly seals, and prevents lubricant grease from leaking.In addition, the oil gas of the utility model
Separation sealing rock bit has air flue independent and oil duct, and air flue and oil duct separate design are independent of each other, respectively take charge of it
Duty, each architectonical, oil duct are absorbed in " lubrication ", and air flue is absorbed in " cooling ".Wherein, the design of air flue is conducive to the cold of sealing ring
But, the service life of sealing ring is extended, to improve the service life of entire bearing.
Detailed description of the invention
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, the accompanying drawings in the following description is only
It is some embodiments recorded in the utility model, for those of ordinary skill in the art, is not making the creative labor
Under the premise of, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the main view that the Oil-gas Separation of the utility model seals a specific embodiment of rock bit；
Fig. 2 is the cross-sectional view of cone portion in Fig. 1；
Fig. 3 is the cross-sectional view for removing the cone portion of axle journal and bit leg in Fig. 2；
Fig. 4 is axle journal and the cross-sectional view of bit leg part in Fig. 1.
Specific embodiment
The utility model is described in detail in each embodiment shown in reference to the accompanying drawing, but it should be stated that,
These embodiments are not limitation of the utility model, those of ordinary skill in the art according to these embodiments made by function
Energy, method or equivalent transformation or substitution in structure, belong within the protection scope of the utility model.
As shown in Figure 1, the Oil-gas Separation sealing rock bit of the utility model includes：Bit leg 1 is set to the bit leg 1
The axle journal 2 of one end and the gear wheel 3 being set on the axle journal 2.
When due to 3 bit operation of gear wheel, gear wheel 3 needs to carry out high speed rotation, therefore in order to reduce frictional force when rotation,
Oil duct 11 is offered inside the bit leg 1, the outlet end correspondence of the oil duct 11 extends to axle journal interior location.To pass through
The oil duct 11 can provide lubricating oil required when the gear wheel 3 rotation.In addition, being located in the bit leg 1 for the ease of oiling
Oil duct 11 in be additionally provided with pushing off the slag pipe 6, can by gear quarrel slag pipe 6 will grease inject oil duct in.
As shown in Fig. 2, 3 drill bit of gear wheel of the utility model is designed with dual-seal.Specifically, the gear wheel 3 and institute
State the second sealing ring 5 for being provided with the first sealing ring 4 for carrying out axial seal between axle journal 2 and carrying out radial seal.Wherein, institute
It states the first sealing ring 4 to be located between the bottom surface of the gear wheel 3 and the end face of bit leg 1, second sealing ring 5 is located at the axle journal
Between 2 side and the medial surface of gear wheel 3.Preferably, first sealing ring 4 is rectangular seal, and material is Kevlar.Institute
Stating the second sealing ring 5 is O shape sealing ring, and material is hydrogenation nitrile rubber (HNBR).
When 3 bit operation of gear wheel, gear wheel 3 can rub with the first sealing ring 4, and then cause the first sealing ring 4 warm
Degree increases.In order to cool down to first sealing ring 4, offers inside the bit leg 1 and be independently arranged with the oil duct 11
Air flue 12, the air flue 12 outlet end correspondence extends to outlet position.To can provide described the by the air flue 12
The gas that one sealing ring 4 cools.
In one embodiment, the air flue 12 is extended along 1 length direction of bit leg, is had and is set to institute
State the air inlet on bit leg 1 and the venthole positioned at the end face of the bit leg 1.Meanwhile it being formed between the axle journal 2 and gear wheel 3
The cooling air channel for the gas that the venthole blows, the space where first sealing ring 4 are connected with the cooling air channel
It is logical.
As shown in Figure 3,4, the installation for the ease of first sealing ring 4 and the second sealing ring 5 is fixed, the gear wheel 3
Bottom surface there is step structure 31, offer the first groove 41, first sealing ring 4 on the step surface of the step structure 31
Receiving is installed in first groove 41.Meanwhile the step surface of the step structure 31 and the end face of the bit leg 1 offset
It leans on.In order to improve the shirttail intensity of bit leg 1, the shirttail of the bit leg 1 is contained in the step structure 31 to form described junction.
So set, can be by the thicker of the shirttail of the bit leg 1 design, and then intensity is higher.Correspondingly, due to the increasing of shirttail thickness
Add, the palm back carbide button 13 of the bit leg 1 can be arranged closer to the shirttail of the bit leg 1, and such setting can mention for axle journal 2
For preferably protecting.
Further, the second groove 51, second sealing are offered on the wall surface of the relatively described gear wheel 3 of the axle journal 2
Circle 5 is contained in the second groove 51 on the axle journal 2, at this point, second sealing ring 5 is that the gear wheel 3 provides periphery
Radial seal.
In conclusion the Oil-gas Separation sealing rock bit of the utility model is designed equipped with dual-seal, have reliable
Leakproofness.First of sealing mainly plays the compressed air dust-proof, sealing ring cooperates gas outlet to come out, and can effectively prevent mud
Sand, dust etc. enter second sealing, and the external environment of relative clean is created for second sealing.Second sealing is main to be risen
Sealing function prevents lubricant grease from leaking.In addition, the Oil-gas Separation sealing rock bit of the utility model is with independent
Air flue and oil duct, air flue and oil duct separate design, be independent of each other, Each performs its own functions, each architectonical, oil duct is absorbed in " lubrication ", gas
It is absorbed in " cooling " in road.Wherein, the design of air flue is conducive to the cooling of sealing ring, extends the service life of sealing ring, thus
Improve the service life of entire bearing.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (8)
1. a kind of Oil-gas Separation seals rock bit, which is characterized in that the Oil-gas Separation seals rock bit and includes：Bit leg,
The gear wheel for being set to the axle journal of described bit leg one end and being set on the axle journal；
The outlet end of the air flue for offering oil duct inside the bit leg and being independently arranged with the oil duct, the air flue extends to
Outlet position is provided with the first sealing ring of axial seal and the second sealing of radial seal between the gear wheel and the axle journal
Circle, first sealing ring are contained in the first groove of the gear wheel inner hole step end face, and second sealing ring is contained in
In second groove of the bit leg journel, first groove is opened on the step surface of the gear wheel inner hole, the gear wheel
The end face of step surface and the bit leg leans.
2. Oil-gas Separation according to claim 1 seals rock bit, which is characterized in that the air flue is long along the bit leg
It spends direction to be extended, there is the air inlet being set on the bit leg and the venthole positioned at the bit leg journel end face.
3. Oil-gas Separation according to claim 2 seals rock bit, which is characterized in that shape between the axle journal and gear wheel
The first groove and the cooling air channel phase at the cooling air channel for the gas that the venthole blows, where first sealing ring
Connection.
4. Oil-gas Separation according to claim 1 seals rock bit, which is characterized in that the oil duct in the bit leg
Inlet is additionally provided with pushing off the slag pipe.
5. Oil-gas Separation according to claim 1 seals rock bit, which is characterized in that first sealing ring is rectangle
Sealing ring.
6. Oil-gas Separation according to claim 1 seals rock bit, which is characterized in that second sealing ring is O shape
Sealing ring.
7. Oil-gas Separation according to claim 1 seals rock bit, which is characterized in that the shirttail of the bit leg is contained in
It is formed in the groove of the gear wheel inner hole step surface.
8. Oil-gas Separation according to claim 1 seals rock bit, which is characterized in that the palm of the bit leg carries on the back carbide button
Shirttail close to the bit leg is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820235075.1U CN208122760U (en) | 2018-02-09 | 2018-02-09 | Oil-gas Separation seals rock bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820235075.1U CN208122760U (en) | 2018-02-09 | 2018-02-09 | Oil-gas Separation seals rock bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208122760U true CN208122760U (en) | 2018-11-20 |
Family
ID=64207624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820235075.1U Active CN208122760U (en) | 2018-02-09 | 2018-02-09 | Oil-gas Separation seals rock bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208122760U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108166929A (en) * | 2018-02-09 | 2018-06-15 | 苏州思丹孚钻具有限公司 | Oil-gas Separation seals rock bit |
-
2018
- 2018-02-09 CN CN201820235075.1U patent/CN208122760U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108166929A (en) * | 2018-02-09 | 2018-06-15 | 苏州思丹孚钻具有限公司 | Oil-gas Separation seals rock bit |
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