CN208122764U - The cyclic annular cutting alloy tooth of drill and petroleum extraction tools - Google Patents
The cyclic annular cutting alloy tooth of drill and petroleum extraction tools Download PDFInfo
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- CN208122764U CN208122764U CN201820494172.2U CN201820494172U CN208122764U CN 208122764 U CN208122764 U CN 208122764U CN 201820494172 U CN201820494172 U CN 201820494172U CN 208122764 U CN208122764 U CN 208122764U
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- denticle
- cyclic annular
- annular cutting
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Abstract
The utility model discloses a kind of cyclic annular cutting alloy teeth of drill and petroleum extraction tools, including integrally formed denticle and crown, the denticle is cylindrical body or polygon cylinder, if the central axial direction of the denticle is vertical direction, the crown is located at the surface of the denticle, the diameter of the external peripheral surface of the crown is from bottom to top gradually reduced until top, the recessed formation center counterbore in the center at the top of the crown.Center counterbore is arranged by the top center in crown in the utility model, entire carbide button is set to form double cutting edge ring-type cutting structures, that is the interior outside of the top surface of crown all has cricoid cutting edge, guarantee lower drilling tool torque and resistance while repairing scraping ability in enhancing drill and petroleum extraction tools outer diameter, it can get higher drilling efficiency and can effectively reduce breakage, while avoiding crown core and being also easy to produce the defects of stress collection.
Description
Technical field
The utility model relates to a kind of drill and petroleum extraction tools cutting tooth more particularly to a kind of cyclic annular cutting alloys of drill and petroleum extraction tools
Tooth.
Background technique
With the deep development of the drillings industry such as petroleum, petrochemical industry, drill and petroleum extraction tools are needed to deeper, more complicated stratum and are more difficult
Rock stratum drilling is crept into, and demand of the drilling enterprise to drilling efficiency increasingly improves, the matched drilling tool of bring uses
The consumption of hard-metal insert also greatly increases.Cutting tooth is the part directly contacted with formation rock, and this requires it to have
Higher intensity, high-wearing feature and good impact flexibility, carbide button have superior wearability and impact flexibility, are answered extensively
For the tool that oil drilling industry, machine add industry, quarrying, mining, Tunnel Engineering to use, have with similar product ratio higher
Rate of penetration.There are the carbide cutting teeth of a variety of dissimilar tooth forms in drill and petroleum extraction tools at present, such as flat-top tooth, chisel teeth, cone
Tooth, blunt conical-ended shape insert etc..
Traditional hard-metal insert, either flat-top tooth, chisel teeth, cone tooth or blunt conical-ended shape insert, contact with rock cutting
Cutting edge be crest top land and denticle side intersecting lens as cutting edge, in the form of a single and cutting edge is shorter, due to its with
The contact area of the borehole wall is smaller, causes it to generate excessive pressure in rock cutting, hard-metal insert is be easy to cause to grind too early
Damage even collapses damage, and the service life is shorter.In addition, the method that traditional hard-metal insert typically passes through soldering is fitted in drill and petroleum extraction tools
On, and hard-metal insert outer surface is simple cylindrical surface, this shape is unfavorable for the row of bottom of the tooth gas when brazing operation
It puts, reduces soldering strength, be easy to cause the hard-metal insert in actual job to fall off, while being easy to produce stress in the core of tooth
It concentrates, for carbide button in cutting operation, stress release is also easy to cause carbide button premature breakdown.
It is above-mentioned two the reason is that the main reason for conventional rigid carbide button is prone to wear failure, and cause hard-metal insert
The main reason for utilization rate is low and service life is low.For this purpose, there is an urgent need to develop a kind of super abrasive, the hard-metal insert of high life
To solve the problems, such as that Vehicles Collected from Market hard-metal insert height consumes.
Utility model content
The purpose of this utility model is that provides a kind of super abrasive, the drilling work of high life to solve the above-mentioned problems
The cyclic annular cutting alloy tooth of tool.
The utility model is achieved through the following technical solutions above-mentioned purpose：
A kind of drill and petroleum extraction tools cyclic annular cutting alloy tooth, including integrally formed denticle and crown, the denticle is cylinder
Body or polygon cylinder, if the central axial direction of the denticle be vertical direction, the crown be located at the denticle just on
Side, the diameter of the external peripheral surface of the crown are from bottom to top gradually reduced until top, the centre bit at the top of the crown
Set recessed formation center counterbore.
Preferably, the external peripheral surface of the crown is the first arc anchor ring in vertical evagination, the center is heavy
The hole wall surface in hole is the second arc anchor ring in vertical evagination, lower part and the denticle of the first arc anchor ring
Between circumferential surface top by vertical evagination third arc anchor ring smooth transition, the first arc anchor ring it is upper
It is described by the 4th arc anchor ring smooth transition in vertical evagination between the outer edge of the top surface of portion and the crown
Pass through the 5th arc in vertical evagination between the inward flange of the top surface of crown and the top of the second arc anchor ring
Pass through between the edge of the bottom surface of anchor ring smooth transition, the lower part of the second arc anchor ring and the center counterbore
It is seamlessly transitted in the 6th arc anchor ring of vertical indent.
Preferably, the denticle is cylindrical body or using central axis as the polygon cylinder of symmetry axis.
Preferably, the center counterbore is upper depending on being projected as round or axial symmetry polygon.
Preferably, the circular radius for the bottom that the upper view of the center counterbore projects or the circumscribed circle of axial symmetry polygon
Radius is the one third of the circular radius at top or the circumradius of axial symmetry polygon to 2/3rds.
Preferably, the center counterbore is cone cell or cylindric.
Preferably, the center counterbore is blind hole or through hole, if blind hole, then its depth is high not less than the crown
The half of degree.
Preferably, the top outer rim of the crown is upper depending on being projected as round or axial symmetry polygon.
Preferably, being integrally provided with one or two symmetrical vertical ditch on the outer wall of the denticle and the crown
Slot.
Preferably, the ring-type cutting alloy tooth is hard-metal insert or hard alloy composite teeth.
The beneficial effects of the utility model are：
Center counterbore is arranged by the top center in crown in the utility model, and entire carbide button is made to form double cuttings
The interior outside of sword ring-type cutting structure, the i.e. top surface of crown all has cricoid cutting edge, in enhancing drill and petroleum extraction tools outer diameter
Guarantee lower drilling tool torque and resistance while repairing scraping ability, can get higher drilling efficiency and can effectively reduce brokenly
Damage, while avoiding crown core and being also easy to produce the defects of stress collection；The outer surface of crown forms the structure for being similar to baked donut,
Each section is evagination arcwall face structure when cutting, and stress and abrasion are all relatively uniform when cutting, can further improve its use
Service life；By opening up 1-2 groove on the outside of denticle and crown, be conducive to the pricker between carbide button and the perforation of drill and petroleum extraction tools
Operation is welded, improves soldering processes, enhances the soldering strength of hard-metal insert, avoid occurring tooth problem in cutting operation.
Detailed description of the invention
Fig. 1 is the perspective view of the cyclic annular cutting alloy tooth of drill and petroleum extraction tools described in the utility model；
Fig. 2 is the top view of the cyclic annular cutting alloy tooth of drill and petroleum extraction tools described in the utility model；
Fig. 3 is the A-A cross-sectional view in Fig. 2；
Fig. 4 is the B-B cross-sectional view in Fig. 2.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing：
As Figure 1-Figure 4, drill and petroleum extraction tools described in the utility model with cyclic annular cutting alloy tooth are hard-metal insert or hard
Matter alloy composite teeth, including integrally formed denticle 1 and crown 3, denticle 1 are cylindrical body or using central axis as the polygon of symmetry axis
Shape cylinder is cylindrical body in this example, if the central axial direction of denticle 1 is vertical direction, crown 3 is located at the surface of denticle 1,
The diameter of the external peripheral surface of crown 1 is from bottom to top gradually reduced until top, the recessed formation in the center at the top of crown 3
Center counterbore (unmarked in figure), the center counterbore are blind hole or through hole, and if blind hole, then its depth is not less than crown 3
The half of height, the center counterbore it is upper depending on being projected as round or axial symmetry polygon, in this example be it is round, it is described in
The circular radius of the upper bottom for regarding projection of heart counterbore or the circumradius of axial symmetry polygon as the circular radius at top or
For the one third of the circumradius of axial symmetry polygon to 2/3rds, the center counterbore is cone cell or cylindric, this example
In be cylindric；The external peripheral surface of crown 3 is the first arc anchor ring 4 in vertical evagination, the hole wall of the center counterbore
Surface is the second arc anchor ring 9 in vertical evagination, the lower part of the first arc anchor ring 4 and the circumferential surface top of denticle 1
Between the third arc anchor ring 2 that passes through in vertical evagination seamlessly transit, the top on the top of the first arc anchor ring 4 and crown 3
Pass through the 4th arc anchor ring 6 smooth transition in vertical evagination, the top surface 11 of crown 3 between the outer edge on portion surface 11
Inward flange and the second arc anchor ring 9 top between by the 5th arc anchor ring 7 smooth transition in vertical evagination, the
Pass through the 6th arc in vertical indent between the edge of the bottom surface 10 of the lower part of two arc anchor rings 9 and the center counterbore
Shape anchor ring 8 seamlessly transits, the top outer rim of crown 3 it is upper depending on being projected as round or axial symmetry polygon, the top table of crown 3
Face 11 is the arc anchor ring of evagination in the horizontal direction, preferably tangent connection between each arc anchor ring；Denticle 1 and crown 3
Two (or one) symmetrical vertical groove 5 is integrally provided on outer wall, groove 5 runs through denticle 1 and crown 3, groove 5
Cross sectional shape be not limited to semicircle, be also possible to the shapes such as triangle, rectangle, parabola shaped, as long as be convenient for brazing operation
?.
As Figure 1-Figure 4, in application, drill and petroleum extraction tools described in the utility model are set to reamer with cyclic annular cutting alloy tooth
Wing on, by carrying out soldering connection between the perforation on groove 5 and wing, enhance soldering strength, avoid in cutting operation
When there is tooth problem；The center counterbore makes entire carbide button form double cutting edge ring-type cutting structures, the i.e. top of crown 3
The interior outside on surface 11 all has cricoid cutting edge, enhancing drill and petroleum extraction tools outer diameter guarantee while repairing scraping ability it is lower
Drilling tool torque and resistance can get higher drilling efficiency and can effectively reduce breakage, while the core for avoiding crown 3 is easy
Generate the defects of stress collection；The outer surface of crown 3 forms the structure for being similar to baked donut, and each section is outer convex arc when cutting
Shape face structure, stress and abrasion are all relatively uniform when cutting, can further improve its service life.
Above-described embodiment is the preferred embodiment of the utility model, is not the limit to technical solutions of the utility model
System, as long as being regarded as falling into without the technical solution that creative work can be realized on the basis of the above embodiments
In the rights protection scope of the utility model patent.
Claims (10)
1. a kind of drill and petroleum extraction tools cyclic annular cutting alloy tooth, including integrally formed denticle and crown, the denticle are cylindrical body
Or polygon cylinder, if the central axial direction of the denticle is vertical direction, the crown is located at the surface of the denticle,
It is characterized in that：The diameter of the external peripheral surface of the crown is from bottom to top gradually reduced until top, the top of the crown
The recessed formation center counterbore in center.
2. the cyclic annular cutting alloy tooth of drill and petroleum extraction tools according to claim 1, it is characterised in that：The excircle of the crown
Surface is the first arc anchor ring in vertical evagination, and the hole wall surface of the center counterbore is the second arc in vertical evagination
Anchor ring, by the of vertical evagination between the lower part of the first arc anchor ring and the circumferential surface top of the denticle
Three arc anchor rings seamlessly transit, between the outer edge of the top surface on the top and crown of the first arc anchor ring
By the 4th arc anchor ring smooth transition in vertical evagination, the inward flange of the top surface of the crown and second arc
It is seamlessly transitted between the top of shape anchor ring by the 5th arc anchor ring in vertical evagination, the second arc anchor ring
Pass through the 6th arc anchor ring smooth transition in vertical indent between the edge of the bottom surface of lower part and the center counterbore.
3. the cyclic annular cutting alloy tooth of drill and petroleum extraction tools according to claim 1, it is characterised in that：The denticle is cylindrical body
Or using central axis as the polygon cylinder of symmetry axis.
4. the cyclic annular cutting alloy tooth of drill and petroleum extraction tools according to claim 1, it is characterised in that：The center counterbore it is upper
Depending on being projected as round or axial symmetry polygon.
5. the cyclic annular cutting alloy tooth of drill and petroleum extraction tools according to claim 4, it is characterised in that：The center counterbore it is upper
The circumradius of the circular radius or axial symmetry polygon that regard the bottom of projection is polygon as the circular radius at top or axial symmetry
The one third of the circumradius of shape is to 2/3rds.
6. according to claim 1, the cyclic annular cutting alloy tooth of drill and petroleum extraction tools described in 4 or 5, it is characterised in that：The center is heavy
Hole is cone cell or cylindric.
7. according to claim 1, the cyclic annular cutting alloy tooth of drill and petroleum extraction tools described in 4 or 5, it is characterised in that：The center is heavy
Hole be blind hole or through hole, if blind hole then its depth be not less than the hypsodonty half.
8. the cyclic annular cutting alloy tooth of drill and petroleum extraction tools described in any one of -5 according to claim 1, it is characterised in that：It is described
The top outer rim of crown it is upper depending on being projected as round or axial symmetry polygon.
9. the cyclic annular cutting alloy tooth of drill and petroleum extraction tools described in any one of -5 according to claim 1, it is characterised in that：It is described
One or two symmetrical vertical groove is integrally provided on the outer wall of denticle and the crown.
10. the cyclic annular cutting alloy tooth of drill and petroleum extraction tools described in any one of -5 according to claim 1, it is characterised in that：Institute
Stating cyclic annular cutting alloy tooth is hard-metal insert or hard alloy composite teeth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820494172.2U CN208122764U (en) | 2018-04-09 | 2018-04-09 | The cyclic annular cutting alloy tooth of drill and petroleum extraction tools |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820494172.2U CN208122764U (en) | 2018-04-09 | 2018-04-09 | The cyclic annular cutting alloy tooth of drill and petroleum extraction tools |
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| CN208122764U true CN208122764U (en) | 2018-11-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108222845A (en) * | 2018-04-09 | 2018-06-29 | 成都百施特金刚石钻头有限公司 | The cyclic annular cutting alloy tooth of drill and petroleum extraction tools |
-
2018
- 2018-04-09 CN CN201820494172.2U patent/CN208122764U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108222845A (en) * | 2018-04-09 | 2018-06-29 | 成都百施特金刚石钻头有限公司 | The cyclic annular cutting alloy tooth of drill and petroleum extraction tools |
| CN108222845B (en) * | 2018-04-09 | 2024-04-26 | 成都百施特金刚石钻头有限公司 | Annular cutting alloy tooth for drilling and production tool |
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