CN207160991U - A kind of drill bit and its cutting part - Google Patents
A kind of drill bit and its cutting part Download PDFInfo
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- CN207160991U CN207160991U CN201721213228.4U CN201721213228U CN207160991U CN 207160991 U CN207160991 U CN 207160991U CN 201721213228 U CN201721213228 U CN 201721213228U CN 207160991 U CN207160991 U CN 207160991U
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Abstract
The utility model discloses a kind of drill bit and its cutting part, a kind of drill bit cutting part, the cutting part includes matrix and cutting lay, first face of the cutting lay is compound in the surface of described matrix, and second face relative with first face of the cutting lay forms the recessed sunk structure in oriented first face on the cutting lay.The utility model also provides a kind of drill bit with above-mentioned cutting part.The utility model is by setting sunk structure, the area that cutting part contacts with rock stratum is reduced, and increases the radiating product of cutting part, so that cutting part keeps good self-sharpening energy, can persistently have aggressiveness in the cutting tooth course of work, operating efficiency greatly improved.
Description
Technical field
The utility model relates generally to a kind of drill bit, in particular to a kind of drill bit and its cutting part.
Background technology
The diamond bit (PDC drill bit) that oil drilling uses is using composite sheet as cutting element broken formation.Make on drill bit
Cutting part is generally combined into one by matrix with diadust by superhigh-temperature and-pressure, and matrix is with diadust
Plane combines, and composite sheet outer shape is cylinder.The composite sheet of conventional form is in actual use due to diamond layer plane
The limitation of structure, cut landwaste caused by stratum fully timely can not be left composite sheet table by circulatory system effect migration
Face, there is the risk for causing bit balling；Conventional composite sheet runs into the complicated feelings such as hard interbedded layer or carbonate formation in drilling process
During condition, its temperature capacity is directly connected to diamond bit service life, and temperature is too high to decline composite sheet wear resistance,
Conventional planar structure composite sheet diamond layer area of dissipation is limited, can be produced in drilling process in diamond layer and rock stratum interface
Amount of heat, diamond layer heat endurance is caused to decline, wear-resistant, Anti-erosion, sharp ability weaken, it is possible to cause cutting tooth
Initial failure, diamond layer occurs and collapses damage, the situation of fragmentation, it is lost cutting function.
Above- mentioned information is only used for strengthening the understanding to background of the present utility model disclosed in the background section, because
This it can include not forming the information to prior art known to persons of ordinary skill in the art.
Utility model content
A series of concept of reduced forms is introduced in utility model content part, this will be in specific embodiment part
Middle further description.The utility model content part is not meant to attempt to limit technical scheme claimed
Key feature and essential features, do not mean that the protection domain for attempting to determine technical scheme claimed more.
A main purpose of the present utility model is at least one defect for overcoming above-mentioned prior art, there is provided one kind dissipates
Preferably a kind of drill bit cutting part of hot property.
Another main purpose of the present utility model is at least one defect for overcoming above-mentioned prior art, there is provided a kind of
Thermal diffusivity and the preferable drill bit of wearability.
To achieve the above object, the utility model adopts the following technical scheme that：
According to one side of the present utility model, there is provided a kind of drill bit cutting part, the cutting part include base
Body and cutting lay, the first face of the cutting lay are compound in the surface of described matrix, on the cutting lay with the cutting lay
The second relative face of first face forms the recessed sunk structure in oriented first face.
According to an embodiment of the present utility model, wherein everywhere to the cutting lay on the first face of the cutting lay
The distance of second face upright projection is equal.
According to an embodiment of the present utility model, wherein first face of the cutting lay and the surface of described matrix
Shape match.
According to an embodiment of the present utility model, wherein the section of the sunk structure is arc, and the depression
The radius of curvature of structure is more than the half or half of the cutting part height.
According to an embodiment of the present utility model, wherein the height of the sunk structure is the cutting part height
1/6th or more than 1/6th.
According to an embodiment of the present utility model, wherein the section of the sunk structure is inverted trapezoidal, the depression knot
Structure includes base and waist edge, and the angle between the base and the waist edge is 90 degree or more than 90 degree.
According to an embodiment of the present utility model, wherein the section of the sunk structure is " V " font, and it is described recessed
The angle fallen between two sides of structure is 30 degree or more than 30 degree.
According to an embodiment of the present utility model, wherein formed with least two on second face of the cutting lay
The sunk structure.
According to an embodiment of the present utility model, wherein described matrix is hard alloy substrate, and the cutting lay is poly-
Diamond cutting lay.
According to another aspect of the present utility model, also a kind of drill bit of the utility model, it includes cutting portion as described above
Part and drill body, the circumference side of the drill body arrange at least one cutting part.
As shown from the above technical solution, exist the advantages of a kind of drill bit and its cutting part of the present utility model with good effect
In：
The utility model on cutting lay by being provided with sunk structure so that the utility model in the course of the work can be with
Make the fast and effective migration of cutting landwaste, landwaste is quickly migrated and leave cutting layer surface, reduce energy and repeating to cut
The waste cut, stock-removing efficiency is lifted, and reduce the cutting lay degree of wear and increase the service life；It is recessed additionally, due to being provided with
Structure is fallen into, in practical work process, less heat is produced on the work interface of cutting lay, so that cutting part is kept
Good self-sharpening energy, can persistently have aggressiveness in the cutting part course of work；Sunk structure increases cutting part
Area of dissipation, the heat endurance of cutting part is lifted, reduce the hot scaling loss of cutting part, collapse tooth, the risk of fragmentation, extend and cut
Cut the service life of part.
Brief description of the drawings
The following detailed description to preferred embodiment of the present utility model is considered in conjunction with the accompanying drawings, it is of the present utility model each
Kind target, feature and advantage will become apparent.Accompanying drawing is only exemplary diagram of the present utility model, is not necessarily
It is drawn to scale.In the accompanying drawings, same reference represents same or similar part all the time.Wherein：
Fig. 1 is a kind of longitudinal schematic cross-sectional view of drill bit cutting part according to an illustrative embodiments.
Fig. 2 is a kind of schematic perspective view of drill bit cutting part according to an illustrative embodiments.
Fig. 3 is a kind of longitudinal schematic cross-sectional view of drill bit cutting part according to Fig. 2.
Fig. 4 is a kind of schematic cross-sectional view of drill bit cutting part according to an illustrative embodiments.
Fig. 5 is a kind of schematic top plan view of drill bit according to an illustrative embodiments.
Embodiment
Example embodiment is described more fully with referring now to accompanying drawing.However, example embodiment can be with a variety of shapes
Formula is implemented, and is not understood as limited to embodiment set forth herein；On the contrary, these embodiments are provided so that this practicality is new
The design of example embodiment fully and completely, and will be comprehensively communicated to those skilled in the art by type.Identical in figure
Reference represents same or similar structure, thus will omit their detailed description.
Described feature, structure or characteristic can be incorporated in one or more embodiments in any suitable manner
In.In the following description, there is provided many details fully understand so as to provide to embodiment of the present utility model.So
And it will be appreciated by persons skilled in the art that the technical solution of the utility model can be put into practice without in the specific detail
It is one or more, or other methods, component, material etc. can be used.In other cases, it is not shown in detail or describes public affairs
Structure, material or operation are known to avoid obscuring each side of the present utility model.
Referring to Fig. 1 to Fig. 5, an embodiment of the present utility model is illustrated below：
Fig. 1 is a kind of longitudinal schematic cross-sectional view of drill bit cutting part according to an illustrative embodiments.Fig. 2
It is a kind of schematic perspective view of drill bit cutting part according to an illustrative embodiments.Fig. 3 is shown according to Fig. 2
A kind of longitudinal schematic cross-sectional view of drill bit cutting part.Fig. 4 is that a kind of drill bit according to an illustrative embodiments is used
The schematic cross-sectional view of cutting part.Fig. 5 is a kind of schematic top plan view of drill bit according to an illustrative embodiments.
As shown in figure 1, in an embodiment of the present utility model, the utility model provides a kind of drill bit cutting portion
Part, cutting part 1 include matrix 11 and cutting lay 12, and the first face 121 of cutting lay 12 is compound in the surface of matrix 1, cutting lay
Second face 122 relative with the first face 121 of cutting lay 12 forms the recessed sunk structure 13 in oriented first face 121 on 12.Tool
For body, matrix 11 can use cylindrical base made of hard alloy, and cutting lay 12 can be made of polycrystalline diamond
Cutting lay, and cutting lay 12 can be arranged at the top of matrix 11, its first face 121 and the surface recombination of matrix 11, the
The recessed sunk structure 13 in oriented first face 121 is formed on two faces 122.Sunk structure 13 is set to cause of the present utility model
Cutting part, cutting lay and rock stratum contact area diminish in the course of the work and area of dissipation increases, and not only can effectively reduce
The generation of heat, and heat dispersion is added again.Set sunk structure 13 that cutting part can also be made to keep good from sharp
Performance, to ensure persistently have aggressiveness in the course of work, operating efficiency can be effectively improved；Because heat dispersion preferably carries
The heat endurance of cutting part is risen, the hot scaling loss of cutting part is effectively reduced, collapses tooth, the risk of fragmentation, extend cutting part
Service life.
It should be understood that the utility model does not limit the specific material of matrix 11 and cutting lay 12, it can be with
It is made of other materials, due to being to be directed to harder geological environment using cutting lay 12 made of polycrystalline diamond, therefore this
Art personnel can adjust the specific material of matrix 11 and cutting lay 12 according to the demand of reality.This other practicality is new
Also the specific set-up mode of matrix 11 and cutting lay 12 is not limited, such as cutting lay 12 can also be arranged at the bottom of matrix 11
End, or the surface of matrix 11 is directly coated on, those skilled in the art can be adjusted according to the application environment of reality.
In the embodiment of the utility model one, everywhere to the second face of cutting lay 12 on the first face 121 of cutting lay 12
The distance of 122 upright projections is equal.Shown in reference picture 1,3 and 4, for cutting lay 12 in the case of with sunk structure 13, it is thick
Degree remains the design of uniform uniform thickness, that is to say, that the thickness of cutting lay 12 can't adjust according to sunk structure 13, and
The integral thickness of matrix 11 can be adjusted with sunk structure 13.All positions of cutting lay 12 are can be designed so that using this
The thickness put is consistent, and the abrasion of same degree can be remained in actual use process, avoids causing the former material of cutting lay 12
The waste of material, while can effectively extend service life of the present utility model, use cost is reduced, effectively improves economic benefit.
But should be noted that all embodiments not of the present utility model must all use above-mentioned setting, at some
In other embodiments, cutting lay 12 can also be designed by the way of not uniform thickness, therefore the utility model is not limited thereto.
In the embodiment of the utility model one, the shape phase in the first face 121 and the surface of matrix 11 of cutting lay 12
Match somebody with somebody.As shown in figure 1, the first face 121 of cutting lay 12 is close to close with the surface of matrix 11 all the time, in conjunction with reference picture 3 and Fig. 4,
Sunk structure 13 changes anyway, and the first face 121 of cutting lay 12 with the surface of body 11 all the time with being brought into close contact.Using this
Design can effectively lift globality of the present utility model and simplify manufacture craft, so that the utility model not only makes
It is convenient, and bulk strength can be improved, it can also further extend service life of the present utility model.
As shown in figure 1, in the embodiment of the utility model one, the section of sunk structure 13 is arc, and the knot that is recessed
The radius of curvature of structure 13 is more than the half or half of the height of cutting part 1.Specifically, the cutting lay 12
The first face 121 and the second face 122 simultaneously to lower recess, make it that the cross sectional shape of sunk structure 12 is generally curved, and
The both ends of arc extend horizontally to the position concordant with the side of described matrix 11 to both sides respectively.It can not only be subtracted using the design
The area that few cutting lay 12 contacts with rock stratum, and area of dissipation is increased, it is steady so as to effectively increase heat of the present utility model
It is qualitative.In present embodiment, the radius of curvature of sunk structure 13 could be arranged to the half of the integral thickness of cutting part 1
Or more than half, this can be designed so that bulk strength of the present utility model is higher for use, so that this practicality is new
Type goes for complex geological environment, to improve its applicability.But it is the utility model radius of curvature that should illustrate
Use is only for example, and is not limited to the utility model, such as in some other embodiments, the curvature of sunk structure 13
Radius can also be other number ranges, such as can be 1/3rd or 1/5th, set different number ranges, can
To allow the utility model to be applicable a variety of geological environments, therefore those skilled in the art can be according to actual use
Environment voluntarily adjusts.
In the embodiment of the utility model one, the height of sunk structure 13 could be arranged to the six of the height of cutting part 1
/ mono- or more than 1/6th.It is designed principally for considering complex use environment using this, can be further
The utility model scope of application is improved, so as to improve applicability of the present utility model, is increased economic efficiency with saving use cost.
Certain the utility model does not limit above-mentioned number range, such as it can also use 1/7th or 1/8th etc.,
Different number ranges is set, the utility model can be allowd to be applicable a variety of geological environments, as long as cutting part 1
It can be adapted with targeted geological environment.
As shown in Figures 2 and 3, in the embodiment of the utility model one, the section of sunk structure 13 is inverted trapezoidal, depression
Structure 13 includes base 131 and waist edge 132, and the angle between base 131 and waist edge 132 is 90 degree or more than 90 degree.Specifically
For, the first face 121 of the cutting lay 12 and the second face 122 are simultaneously to lower recess, to cause the section of sunk structure 12
Shape can be in generally an inverted trapezium structure, and the top of two waist edges 132 of sunk structure 13 is prolonged to both sides level respectively
The position concordant with the side of described matrix 11 is extended, in one embodiment, the height of sunk structure 13 can be that cutting part 1 is high
1/6th or other ratios, the utility model of degree are not limited this.As shown in figure 3, the base 131 of sunk structure 13
Angle between waist edge 132 can use 90 degree or use more than 90 degree, using the design, main consideration cutting part 1
Overall chip removal ability, because the opening of sunk structure 13 is larger, helps to cut the fast and effective migration of landwaste, greatly improved
The ability of landwaste is excluded, so as to improve utility model operating efficiency.
In an embodiment of the present utility model, the section of sunk structure 13 may be arranged as " V " font (in figure not
Show), and the angle between two sides of sunk structure 13 is 30 degree or more than 30 degree, be arranged to 30 degree or 30 degree with
On, primarily to avoiding due to the problem of too small openings cause debris blockage.Designed in addition using this on except that can realize
State in embodiment outside the beneficial effect of sunk structure 13, it is also possible that the utility model processing technology is simple, effectively save system
This is caused, so as to which yield rate and manufacture efficiency of the present utility model is substantially improved.
Can be arc it should be noted that, although listing the multiple section shape of sunk structure 13 in above-described embodiment
Shape, inverted trapezoidal and " V " font, but the utility model does not limit and is necessary for above-mentioned shape, the section shape of sunk structure 13
Shape can also use other shapes, if its purpose that can meet to increase area of dissipation, therefore the utility model and unlimited
Determine the cross sectional shape of sunk structure 13.
As shown in figure 4, in an embodiment of the present utility model, at least two are could be formed with the second face of cutting lay 12
Individual sunk structure 13.That is sunk structure 13 can also be two or more, but the utility model do not limit it is recessed
The particular number of structure is fallen into, those skilled in the art can be adjusted according to actual condition to it.In addition in some embodiments
In, the cross sectional shape of multiple sunk structures 13 can use one or more kinds of combinations in above-described embodiment, and this practicality is newly
Type is not limited this.
Fig. 5 is a kind of schematic top plan view of drill bit according to an illustrative embodiments.As shown in figure 5, this practicality
New also to provide a kind of drill bit, it can mainly include cutting part 1 and drill body 2 in above-described embodiment, drill bit sheet
The circumference side of body 2 arranges at least one cutting part 1.Drill body 2 can use with the above-mentioned phase same material of matrix 11 made of
Cylinder, cutting part 1 can be fixedly connected on the circumference of drill body 2 by way of welding.It should be appreciated that this reality
The material of drill body 2 and the particular number or connected mode of cutting part 2 are not limited with new, those skilled in the art can
It is adjusted with basis in actual condition.
In an embodiment of the present utility model, drill body 2 circumferentially has multiple cutting edges 21, and cutting part 1 is consolidated
On cutting edge 21.As shown in figure 5, the circumferentially disposed multiple cutting edges 21 that will be raised of drill body 2, cutting edge 21 can be adopted
It is made, such as can be made of hard alloy of identical material with drill body 2, it can be adopted with drill body 2
It is made of the mode of being integrally formed, or is connected to using welding manner on drill body 2, but the utility model does not limit it
Specific material and manufacturing process.Cutting part 1 can be welded on cutting edge 21 in a manner of it can also equally use welding.If
The cutting power of the utility model drill bit can be effectively improved by putting cutting edge 21, and have ditch between two adjacent cutting edges 21
Groove can further improve the ability that the utility model excludes landwaste, so as to effectively improve operating efficiency of the present utility model, and
And use cost can also be reduced.
As shown from the above technical solution, exist the advantages of a kind of drill bit and its cutting part of the present utility model with good effect
In：
The utility model on cutting lay by being provided with sunk structure so that the utility model in the course of the work can be with
Make the fast and effective migration of cutting landwaste, landwaste is quickly migrated and leave cutting layer surface, reduce energy and repeating to cut
The waste cut, stock-removing efficiency is lifted, and reduce the cutting lay degree of wear and increase the service life；It is recessed additionally, due to being provided with
Structure is fallen into, in practical work process, less heat is produced on the work interface of cutting lay, so that cutting part is kept
Good self-sharpening energy, can persistently have aggressiveness in the cutting part course of work；Sunk structure increases cutting part
Area of dissipation, the heat endurance of cutting part is lifted, reduce the hot scaling loss of cutting part, collapse tooth, the risk of fragmentation, extend and cut
Cut the service life of part.
It should be appreciated that the utility model be not limited in its application to set forth herein part detailed construction and arrangement
Mode.The utility model can have other embodiment, and can realize and perform in many ways.Aforesaid deformation form
Fall with modification in the scope of the utility model.It should be appreciated that the utility model extension disclosed and defined herein
Mentioned to text and/or drawings or all alternative combinations of two or more obvious independent features.It is all these
Different combinations forms multiple alternative aspects of the present utility model.Embodiment as described herein illustrates to become known for realizing this
The best mode of utility model, and those skilled in the art will be enable to utilize the utility model.
Although disclosing the utility model with reference to some embodiments, without departing substantially from the scope of the utility model and
On the premise of category, a variety of variants and modifications can be carried out to described embodiment.It will therefore be appreciated that the utility model is not
Illustrated embodiment is confined to, its protection domain should be limited by the content of appended claims and its structure and scheme of equivalence
It is fixed.
Claims (10)
1. a kind of drill bit cutting part, the cutting part includes matrix and cutting lay, it is characterised in that the cutting lay
First face is compound in the surface of described matrix, the dihedron relative with first face of the cutting lay on the cutting lay
The sunk structure recessed into oriented first face.
2. cutting part as claimed in claim 1, it is characterised in that everywhere to the cutting on the first face of the cutting lay
The distance of second face upright projection of layer is equal.
3. cutting part as claimed in claim 1, it is characterised in that first face of the cutting lay and described matrix
The shape on surface matches.
4. cutting part as claimed in claim 2, it is characterised in that the section of the sunk structure is arc, and described
The radius of curvature of sunk structure is more than the half or half of the cutting part height.
5. cutting part as claimed in claim 2, it is characterised in that the height of the sunk structure is that the cutting part is high
/ 6th or more than 1/6th of degree.
6. cutting part as claimed in claim 5, it is characterised in that the section of the sunk structure is inverted trapezoidal, described recessed
Falling into structure includes base and waist edge, and the angle between the base and the waist edge is 90 degree or more than 90 degree.
7. cutting part as claimed in claim 5, it is characterised in that the section of the sunk structure is " V " font, and institute
It is 30 degree or more than 30 degree to state the angle between two sides of sunk structure.
8. cutting part as claimed in claim 1, it is characterised in that formed with least on second face of the cutting lay
Two sunk structures.
9. claim 1 to 7 it is any as described in cutting part, it is characterised in that described matrix is hard alloy substrate, institute
It is polycrystalline diamond cutting lay to state cutting lay.
A kind of 10. drill bit, it is characterised in that including the cutting part and drill body as described in any such as claim 1 to 9,
The circumference side of the drill body arranges at least one cutting part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721213228.4U CN207160991U (en) | 2017-09-21 | 2017-09-21 | A kind of drill bit and its cutting part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721213228.4U CN207160991U (en) | 2017-09-21 | 2017-09-21 | A kind of drill bit and its cutting part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207160991U true CN207160991U (en) | 2018-03-30 |
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ID=61723295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721213228.4U Active CN207160991U (en) | 2017-09-21 | 2017-09-21 | A kind of drill bit and its cutting part |
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| CN (1) | CN207160991U (en) |
Cited By (3)
| 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 |
| CN110029943A (en) * | 2019-05-05 | 2019-07-19 | 广东钜鑫新材料科技股份有限公司 | MULTILAYER COMPOSITE diamond hard alloy wear resistant parts and its manufacturing method |
| CN111764829A (en) * | 2019-04-01 | 2020-10-13 | 成都百施特金刚石钻头有限公司 | Polycrystalline diamond compact for plastic stratum |
-
2017
- 2017-09-21 CN CN201721213228.4U patent/CN207160991U/en active Active
Cited By (4)
| 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 |
| CN111764829A (en) * | 2019-04-01 | 2020-10-13 | 成都百施特金刚石钻头有限公司 | Polycrystalline diamond compact for plastic stratum |
| CN110029943A (en) * | 2019-05-05 | 2019-07-19 | 广东钜鑫新材料科技股份有限公司 | MULTILAYER COMPOSITE diamond hard alloy wear resistant parts and its manufacturing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200924 Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Bohai Petroleum Equipment Manufacturing Co.,Ltd. Patentee after: Bohai Petroleum Equipment (Tianjin) Zhongcheng Machinery Manufacturing Co.,Ltd. Address before: No. 3, No. 19, Binhai Service Outsourcing Industrial Park, No. 19, Xin Huan West Road, Tianjin Binhai New Area, Tianjin Patentee before: CNPC Bohai Petroleum Equipment Manufacturing Co.,Ltd. Patentee before: Bohai Petroleum Equipment (Tianjin) Zhongcheng Machinery Manufacturing Co.,Ltd. |
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| TR01 | Transfer of patent right |