CN208236338U - Split type tricone bit - Google Patents
Split type tricone bit Download PDFInfo
- Publication number
- CN208236338U CN208236338U CN201820766704.3U CN201820766704U CN208236338U CN 208236338 U CN208236338 U CN 208236338U CN 201820766704 U CN201820766704 U CN 201820766704U CN 208236338 U CN208236338 U CN 208236338U
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- China
- Prior art keywords
- gear wheel
- lower body
- plug pin
- oil
- bit
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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.)
- Expired - Fee Related
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Abstract
The utility model relates to a kind of split type tricone bits, are mainly made of the first gear wheel group, the second gear wheel group, third gear wheel group, tooth, bit leg, oil storage compensation pressure balancing system, nozzle.The bit leg journel that 3 bit legs are biased by its lower end is connected with 3 gear wheel lower bodies respectively, and 3 gear wheel upper bodies are separately mounted on the axle journal of 3 gear wheel lower bodies；At runtime, 3 gear wheel lower bodies both respectively revolved with bit body, again respectively around the axle journal rotation of bit leg, both it respectively revolved with bit body 3 gear wheel upper bodies, again respectively around the axle journal rotation of 3 gear wheel lower bodies, to realize the task of its scraping fractured rock, the tooth scraping efficiency of small end gear ring and intermediate gear ring is improved, and helps to improve drill bit efficiency of breaking rock.
Description
Technical field
The utility model relates to a kind of split type three rotary drills for petroleum, gas drilling and other geological drillings
Head.
Background technique
In oil drilling, drill bit that is up to the present most commonly used, adapting to various stratum is rock bit.Gear wheel
Most commonly used in drill bit is tricone bit, is widely used in petroleum, gas drilling and other geological drillings etc..With
The further exploitation of petroleum resources, the minable oil well quantity of conventional drilling is fewer and fewer, and the difficulty of exploitation is increasing, drilling well
Gradually develop to deep-well and ultradeep well, the efficiency of breaking rock for improving tricone bit is to improve the key technology of drilling efficiency to ask
Topic.
Tricone bit is rolled, impact cutting when drilling rock by the interaction force between its gear wheel rotation and rock
It is broken, achieve the purpose that destroy rock stratum.The gear ring close to gear wheel bottom is usually called gear wheel big end gear ring, abbreviation big end gear ring,
Part at the top of gear wheel is called gear wheel small end gear ring, abbreviation small end gear ring.Currently, having been used for producing three teeth in practice
Take turns and be mostly only mounted with a cone body on the bit leg of drill bit, i.e., cone body when around bit leg journel rotation only one from revolving speed
Degree, will be presented certain rule: the tooth of small end gear ring so as to cause the tooth scraping efficiency from small end gear ring to big end gear ring
Scraping efficiency is minimum, the tooth scraping efficiency highest of big end gear ring, and the tooth scraping efficiency of intermediate gear ring falls between,
This will have an impact the efficiency of breaking rock of tricone bit.
Utility model content
Technical problem to be solved in the utility model be in view of the deficiency of the prior art and provide one kind
Facilitate synergy of raising speed, improves the split type tricone bit of efficiency of breaking rock.
The technical solution of the utility model is: split type tricone bit is mainly by the first gear wheel group, the second gear wheel group,
Three gear wheel groups, tooth, bit leg, oil storage compensation pressure balancing system, nozzle composition, it is characterized in that: the oil storage compensation pressure
Balance system is installed on bit leg back lower end；The arrangement of nozzles is on bit body；The tooth is arranged in the first gear wheel
Group, the second gear wheel group, third gear wheel group the cloth flank of tooth on；Be provided on the bit leg bit leg journel oil guiding hole, plug pin hole a,
Bit leg oil guiding hole, oil filler point；The first gear wheel group includes the first gear wheel lower body, the first gear wheel upper body, the first gear wheel lower body
It is provided with the first gear wheel lower body oil guiding hole a, the first gear wheel lower body oil guiding hole b, the first gear wheel upper body is provided with plug pin hole b；It is described
The second gear wheel group include the second gear wheel lower body, the second gear wheel upper body, the second gear wheel lower body is provided with the second gear wheel lower body Oil Guide
Hole a, the second gear wheel lower body oil guiding hole b, the second gear wheel upper body is provided with plug pin hole c；The third gear wheel group includes third tooth
Lower body, third gear wheel upper body are taken turns, third gear wheel lower body is provided with third gear wheel lower body oil guiding hole a, third gear wheel lower body oil guiding hole
B, third gear wheel upper body are provided with plug pin hole d；When first gear wheel group is installed, first rectangular seal a is mounted under the first gear wheel
Body bottom end inner ring, then the first gear wheel lower body is inserted in the axle journal of bit leg, steel ball a is put into plug pin hole a, plug pin a is installed on plug
In pin hole a, rectangular seal b is then mounted on the first gear wheel upper body bottom end inner ring, the first tooth is inserted in the first gear wheel upper body
The axle journal for taking turns lower body, is finally put into plug pin hole b for steel ball b, plug pin b is installed in the b of plug pin hole；Second gear wheel group, third tooth
The erection sequence of wheel group is identical as the first gear wheel group, after the first gear wheel group, the second gear wheel group, third gear wheel group are installed, leads to
Oil filler point addition lubricating oil is crossed, and with silk plug sealed oil-filling hole.
In the first gear wheel group in above scheme, plug pin a and plug pin hole a, plug pin b and plug pin hole b are all made of interference fit,
There are oil storage gap, bit leg journel oil guiding holes, plug pin hole a, bit leg for the axle journal of first gear wheel lower body and the first gear wheel upper body bottom end
Oil guiding hole, oil filler point, oil storage gap, the first gear wheel lower body oil guiding hole a, the first gear wheel lower body oil guiding hole b and bit leg axle journal ditch
The axle journal channel composition Oil Guide channel in road, the first gear wheel lower body, forms good lubricant environment；Second gear wheel group, third gear wheel
Group is also with the features described above of the first gear wheel group.
Tooth in above scheme is hard-metal insert；First gear wheel lower body, the second gear wheel lower body, third gear wheel lower body
Axle journal passes through intensive treatment, and intensity is high, and tough is good.
Rectangular seal a, rectangular seal b in above scheme are metal o-ring, and sealing ring surface is passed through
Intensive treatment, wearability are good.
The beneficial effects of the utility model are: 3 gear wheel groups of (1) split type tricone bit are all made of split type knot
Structure, in drilling process, gear wheel lower body is by respectively around the axle journal rotation of bit leg, gear wheel upper body will be respectively around gear wheel lower body
The tooth scraping efficiency of axle journal rotation, small end gear ring and intermediate gear ring is improved, and facilitates synergy of raising speed；(2) tooth is handed over
Mistake engagement, mutually " picking one's teeth ", 3 gear wheel lower bodies mutually " picking one's teeth ", are conducive to remove landwaste and prevent mud drum for 3 gear wheel upper bodies；
The axle journal of (3) 3 gear wheel lower bodies passes through intensive treatment, and intensity is high, and tough is good, and Oil Guide channel can provide good
Lubricant environment.
Detailed description of the invention
Fig. 1 is the top view of the utility model.
Fig. 2 is the Section A-A figure in the utility model Fig. 1.
Fig. 3 is the structural schematic diagram of the first gear wheel group and bit body in the utility model.
Fig. 4 is the enlarged drawing of I part in the utility model Fig. 3.
Fig. 5 is the schematic diagram in the Oil Guide channel of the first gear wheel group in the utility model.
Fig. 6 is the structural schematic diagram of the first gear wheel upper body in the utility model.
Fig. 7 is the structural schematic diagram of the first gear wheel lower body in the utility model.
Fig. 8 is the structural schematic diagram of the second gear wheel upper body in the utility model.
Fig. 9 is the structural schematic diagram of the second gear wheel lower body in the utility model.
Figure 10 is the structural schematic diagram of third gear wheel upper body in the utility model.
Figure 11 is the structural schematic diagram of third gear wheel lower body in the utility model.
1. third gear wheel lower body in figure, 2. third gear wheel upper bodies, 3. first gear wheel lower bodies, 4. first gear wheel upper bodies, 5.
Two gear wheel lower bodies, 6. second gear wheel upper bodies, 7. teeth, 8. bit legs, 9. plug pin a, 10. oil storage compensation pressure balancing systems, 11. squares
Shape sealing ring a, 12. steel ball a, 13. rectangular seal b, 14. steel ball b, 15. plug pin b, 16. nozzles, 17. bit leg journel Oil Guides
Hole, 18. plug pin hole a, 19. bit leg oil guiding holes, 20. oil filler points, 21. oil storage gaps, 22. first gear wheel upper body bottom end inner rings, 23.
Plug pin hole b, 24. first gear wheel lower body bottom end inner rings, 25. first gear wheel lower body oil guiding hole a, 26. first gear wheel lower body oil guiding holes
B, 27. second gear wheel upper body bottom end inner rings, 28. plug pin hole c, 29. second gear wheel lower body bottom end inner rings, 30. second gear wheel lower bodies
Oil guiding hole a, 31. second gear wheel lower body oil guiding hole b, 32. third gear wheel upper body bottom end inner rings, 33. plug pin hole d, 34. third gear wheels
Lower body bottom end inner ring, 35. third gear wheel lower body oil guiding hole a, 36. third gear wheel lower body oil guiding hole b.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
Referring to attached drawing, split type tricone bit it is characterized by: split type tricone bit mainly by the first gear wheel group,
Second gear wheel group, third gear wheel group, tooth 7, bit leg 8, oil storage compensation pressure balancing system 10, nozzle 16 form, it is characterized in that:
The oil storage compensation pressure balancing system 10 is installed on 8 back lower end of bit leg；The nozzle 16 is arranged on bit body；Institute
The tooth 7 stated is arranged on the cloth flank of tooth of the first gear wheel group, the second gear wheel group, third gear wheel group；It is provided on the bit leg 8
Bit leg journel oil guiding hole 17, plug pin hole a18, bit leg oil guiding hole 19, oil filler point 20；The first gear wheel group includes the first gear wheel
Lower body 3, the first gear wheel upper body 4, the first gear wheel lower body 3 are provided with the first gear wheel lower body oil guiding hole a25, the first gear wheel lower body Oil Guide
Hole b26, the first gear wheel upper body 4 are provided with plug pin hole b23；The second gear wheel group includes the second gear wheel lower body 5, the second gear wheel
Upper body 6, the second gear wheel lower body 5 are provided with the second gear wheel lower body oil guiding hole a30, the second gear wheel lower body oil guiding hole b31, the second gear wheel
Upper body 6 is provided with plug pin hole c28；The third gear wheel group includes third gear wheel lower body 1, third gear wheel upper body 2, third gear wheel
Lower body 1 is provided with third gear wheel lower body oil guiding hole a35, third gear wheel lower body oil guiding hole b36, and third gear wheel upper body 2 is provided with plug
Pin hole d33；When first gear wheel group is installed, rectangular seal a11 is first mounted on the first gear wheel lower body bottom end inner ring 24, then by
One gear wheel lower body 3 is inserted in the axle journal of bit leg 8, and steel ball a12 is put into plug pin hole a18, plug pin a9 is installed in the a18 of plug pin hole,
Then rectangular seal b13 is mounted on the first gear wheel upper body bottom end inner ring 22, the first gear wheel upper body 4 is inserted under the first gear wheel
Steel ball b14 is finally put into plug pin hole b23 by the axle journal of body 3, and plug pin b1 is installed in the b23 of plug pin hole；Second gear wheel group,
The erection sequence of three gear wheel groups is identical as the first gear wheel group, and the first gear wheel group, the second gear wheel group, third gear wheel group are installed
Afterwards, lubricating oil is added by oil filler point 20, and with silk plug sealed oil-filling hole 20.
In the first gear wheel group in above scheme, plug pin a9 and plug pin hole a18, plug pin b15 and plug pin hole b23 were all made of
Be full of cooperation, the axle journal of the first gear wheel lower body 3 and 4 bottom end of the first gear wheel upper body there are oil storage gap 21, bit leg journel oil guiding hole 17,
Plug pin hole a18, bit leg oil guiding hole 19, oil filler point 20, oil storage gap 21, the first gear wheel lower body oil guiding hole a25, the first gear wheel lower body
The axle journal channel composition Oil Guide channel of the axle journal channel of oil guiding hole b26 and bit leg 8, the first gear wheel lower body 3, forms good lubrication
Environment；Second gear wheel group, third gear wheel group also have the features described above of the first gear wheel group.
Tooth 7 in above scheme is hard-metal insert；Under first gear wheel lower body 3, the second gear wheel lower body 5, third gear wheel
The axle journal of body 1 passes through intensive treatment, and intensity is high, and tough is good.
Rectangular seal a11, rectangular seal b13 in above scheme are metal o-ring, and sealing ring surface
By intensive treatment, wearability is good.
The bit leg journel that 3 bit legs 8 of the split type tricone bit are biased by its lower end respectively with the first tooth
Wheel lower body 3, the second gear wheel lower body 5, third gear wheel lower body 1 are connected, the first gear wheel upper body 4, the second gear wheel upper body 6, third tooth
Wheel upper body 2 is separately mounted on the axle journal of the first gear wheel lower body 3, the second gear wheel lower body 5, third gear wheel lower body 1；At runtime,
First gear wheel lower body 3, the second gear wheel lower body 5, third gear wheel lower body 1 not only respectively revolved with bit body, but also respectively around bit leg 8
Axle journal rotation, the first gear wheel upper body 4, the second gear wheel upper body 6, third gear wheel upper body 2 were not only respectively revolved with bit body, but respectively around
The axle journal rotation of the first gear wheel lower body 3, the second gear wheel lower body 5, third gear wheel lower body 1, to realize its scraping fractured rock
The tooth scraping efficiency of task, small end gear ring and intermediate gear ring is improved, and helps to improve drill bit efficiency of breaking rock.
Claims (4)
1. split type tricone bit, mainly by the first gear wheel group, the second gear wheel group, third gear wheel group, tooth (7), bit leg
(8), oil storage compensation pressure balancing system (10), nozzle (16) composition, it is characterized in that: the oil storage compensation pressure balancing system
(10) it is installed on bit leg (8) back lower end；The nozzle (16) is arranged on bit body；The tooth (7) is arranged in
One gear wheel group, the second gear wheel group, third gear wheel group the cloth flank of tooth on；Bit leg journel oil guiding hole is provided on the bit leg (8)
(17), plug pin hole a(18), bit leg oil guiding hole (19), oil filler point (20)；The first gear wheel group includes the first gear wheel lower body
(3), the first gear wheel upper body (4), the first gear wheel lower body (3) are provided with the first gear wheel lower body oil guiding hole a(25), the first gear wheel lower body
Oil guiding hole b(26), the first gear wheel upper body (4) is provided with plug pin hole b(23)；The second gear wheel group includes the second gear wheel lower body
(5), the second gear wheel upper body (6), the second gear wheel lower body (5) are provided with the second gear wheel lower body oil guiding hole a(30), the second gear wheel lower body
Oil guiding hole b(31), the second gear wheel upper body (6) is provided with plug pin hole c(28)；The third gear wheel group includes third gear wheel lower body
(1), third gear wheel upper body (2), third gear wheel lower body (1) are provided with third gear wheel lower body oil guiding hole a(35), third gear wheel lower body
Oil guiding hole b(36), third gear wheel upper body (2) is provided with plug pin hole d(33)；When installing the first gear wheel group, first by rectangular seal a
(11) it is mounted on the first gear wheel lower body bottom end inner ring (24), then the first gear wheel lower body (3) is inserted in the axle journal of bit leg (8), by steel
Ball a(12) it is put into plug pin hole a(18), plug pin a(9) is installed on plug pin hole a(18) in, then rectangular seal b(13) is pacified
Mounted in the first gear wheel upper body bottom end inner ring (22), the first gear wheel upper body (4) is inserted in the axle journal of the first gear wheel lower body (3), finally
Steel ball b(14) is put into plug pin hole b(23), plug pin b(15) is installed on plug pin hole b(23) in；Second gear wheel group, third gear wheel
The erection sequence of group is identical as the first gear wheel group, after the first gear wheel group, the second gear wheel group, third gear wheel group are installed, passes through
Oil filler point (20) adds lubricating oil, and with silk plug sealed oil-filling hole (20).
2. split type tricone bit according to claim 1, it is characterized in that: in the first gear wheel group, plug pin a(9) with
Plug pin hole a(18), plug pin b(15) with plug pin hole b(23) be all made of interference fit, the axle journal and first of the first gear wheel lower body (3)
There are oil storage gap (21), bit leg journel oil guiding holes (17), plug pin hole a(18 for gear wheel upper body (4) bottom end), bit leg oil guiding hole
(19), oil filler point (20), oil storage gap (21), the first gear wheel lower body oil guiding hole a(25), the first gear wheel lower body oil guiding hole b(26)
Oil Guide channel is constituted with the axle journal channel of bit leg (8), the axle journal channel of the first gear wheel lower body (3), forms good lubricant environment；
Second gear wheel group, third gear wheel group also have the features described above of the first gear wheel group.
3. split type tricone bit according to claim 1, it is characterized in that: tooth (7) is hard-metal insert；First tooth
Wheel lower body (3), the second gear wheel lower body (5), third gear wheel lower body (1) axle journal pass through intensive treatment, intensity is high, impact resistance
Good toughness.
4. split type tricone bit according to claim 1, it is characterized in that: rectangular seal a(11), rectangular seal
It b(13) is metal o-ring, and intensive treatment is passed through on sealing ring surface, wearability is good.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820766704.3U CN208236338U (en) | 2018-05-22 | 2018-05-22 | Split type tricone bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820766704.3U CN208236338U (en) | 2018-05-22 | 2018-05-22 | Split type tricone bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208236338U true CN208236338U (en) | 2018-12-14 |
Family
ID=64580776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820766704.3U Expired - Fee Related CN208236338U (en) | 2018-05-22 | 2018-05-22 | Split type tricone bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208236338U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108442886A (en) * | 2018-05-22 | 2018-08-24 | 西南石油大学 | Split type tricone bit |
-
2018
- 2018-05-22 CN CN201820766704.3U patent/CN208236338U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108442886A (en) * | 2018-05-22 | 2018-08-24 | 西南石油大学 | Split type tricone bit |
| CN108442886B (en) * | 2018-05-22 | 2023-11-17 | 西南石油大学 | Split tricone bit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181214 Termination date: 20190522 |