CN208184666U - PDC drill bit - Google Patents
PDC drill bit Download PDFInfo
- Publication number
- CN208184666U CN208184666U CN201820318943.2U CN201820318943U CN208184666U CN 208184666 U CN208184666 U CN 208184666U CN 201820318943 U CN201820318943 U CN 201820318943U CN 208184666 U CN208184666 U CN 208184666U
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- China
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- drill bit
- tooth
- vibration
- vibrating shaft
- pdc drill
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Abstract
The utility model discloses a kind of PDC drill bit, including drill body, cutting wing, cutting tooth and vibration device, drill body have drill bit；The bite wing is formed in drill bit, cuts and is provided with perforation on wing；Cutting tooth is set in perforation；Vibration device is rotatablely arranged on cutting wing, and vibration device includes vibrating shaft and the vibration tooth for being set to vibrating shaft periphery.The vibration device can be rotated in the PDC drill bit course of work, and vibration tooth can be contacted with stratum and be oppressed it, to split rock in advance, improve working efficiency.On the other hand, due to the presence of the vibration tooth, make discontinuously to contact stratum in vibration device rotary course, so that PDC drill bit be made to generate vibration, and then frictional heating can be reduced, extend the service life of PDC drill bit.
Description
Technical field
The utility model belongs to petroleum drilling technology field, in particular to a kind of PDC drill bit.
Background technique
PDC drill bit is exactly polycrystalline diamond compact bit, i.e. Polycrystalline Diamond Compact
Bit.Traditional diamond bit is typically provided with 3-8 wing, and the diamond bit of this structure is oil exploitation and exploration work
Journey contributes.
The PDC drill bit of traditional oil drilling, structure is generally cylinder contrate, cylinder founds tooth and pointed tooth, cutting
Mode is respectively cut-in type, ploughs into formula and split rock formula.These PDC oil bits are that oil exploitation drilling engineering contributes,
But it exists simultaneously following disadvantage or deficiency: for PDC drill bit when boring chance granite basement rock and hardboard mud stone, diamond is sharply
Fever, working durability sharp fall.
Above- mentioned information are only used for reinforcing the understanding to the background of the utility model disclosed in the background technology part.
Utility model content
One main purpose of the utility model is the defect for overcoming above-mentioned PDC drill bit to generate heat, and provides a kind of PDC brill
Head.
To realize above-mentioned purpose of utility model, the utility model adopts the following technical solution:
One aspect according to the present utility model provides a kind of PDC drill bit, including drill body, cutting wing, cutting
Tooth and vibration device, the drill body have drill bit；The bite wing is formed in the drill bit, described to cut
Perforation is provided on the sharpener wing；The cutting tooth is set in the perforation；The vibration device is rotatablely arranged at described
It cuts on wing, the vibration device includes vibrating shaft and the vibration tooth for being set to the vibrating shaft periphery.
An embodiment according to the present utility model, wherein the vibrating shaft is rotatablely arranged at the cutting wing
On, the vibration tooth is fixedly installed on the periphery of the vibrating shaft.
An embodiment according to the present utility model, wherein one in conjunction with the periphery of the vibrating shaft of the vibration tooth
End is bottom end, and one end opposite with the bottom end is top, and the cross sectional dimensions of the vibration tooth is from the bottom end to the top
End is gradually reduced.
An embodiment according to the present utility model, wherein the vibrating shaft is fixedly installed on the cutting wing, institute
Stating vibration device further includes connector, and the connector is rotationally sheathed on the periphery of the vibrating shaft, and the vibration tooth is solid
Surely it is set to the periphery of the connector.
An embodiment according to the present utility model, wherein one in conjunction with the periphery of the connector of the vibration tooth
End is bottom end, and one end opposite with the bottom end is top, and the cross sectional dimensions of the vibration tooth is from the bottom end to the top
End is gradually reduced.
An embodiment according to the present utility model, wherein the drill body has central axis, along perpendicular to described
Central axial direction observation, the vibrating shaft are radially extended along the drill body.
An embodiment according to the present utility model, wherein the drill body has central axis, the vibration tooth exists
The size range of projection in the central axial direction is zero between first size, and the first size is equal to the cutting
The size of projection of the tooth in the central axial direction.
An embodiment according to the present utility model, wherein the vibration tooth be it is multiple, multiple vibration teeth are around described
The same peripheral annular of vibrating shaft is distributed, and the vibration tooth between adjacent annular circumference is staggered.
An embodiment according to the present utility model is provided with the vibration device on part of cutting wing,
The cutting wing with the vibration device is each other every setting.
An embodiment according to the present utility model, wherein the PDC drill bit further includes hydrophthalmia, the hydrophthalmia is set to phase
Between the adjacent cutting wing, nozzle is provided in the hydrophthalmia, the nozzle is connected to water source.
As shown from the above technical solution, the advantages of the PDC drill bit of the utility model and the utility model is had the active effect that
The PDC drill bit of offer has rotatable vibration device, which can be rotated in the PDC drill bit course of work,
Vibration tooth can be contacted with stratum and be oppressed it, to split rock in advance, improve working efficiency.On the other hand, due to the vibration
The presence of movable tooth makes discontinuously to contact stratum in vibration device rotary course, to make PDC drill bit generate vibration, and then can be with
Frictional heating is reduced, the service life of PDC drill bit is extended.
Detailed description of the invention
Consider the detailed description of the following preferred embodiment to the utility model in conjunction with the accompanying drawings, the utility model it is each
Kind target, feature and advantage will become apparent.Attached drawing is only the exemplary diagram of the utility model, is not necessarily
It is drawn to scale.In the accompanying drawings, same appended drawing reference always shows same or similar component.Wherein:
Fig. 1 is a kind of structure chart of PDC drill bit shown according to an illustrative embodiments.
Fig. 2 is the top view of the PDC drill bit in Fig. 1.
Fig. 3 is the structure chart for the vibration device that one of Fig. 1 specific embodiment provides.
Fig. 4 is the cross-sectional view for the vibration device that one of Fig. 1 specific embodiment provides.
Wherein, the reference numerals are as follows:
101, drill body；102, wing is cut；
103, cutting tooth；104, vibration device；
105, tooth is vibrated；106, vibrating shaft；
107, connector；108, hydrophthalmia.
Specific embodiment
Example embodiment is described more fully with reference to the drawings.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, thesing embodiments are provided so that this is practical new
Type will be full and complete, and the design of example embodiment is comprehensively communicated to those skilled in the art.It is identical in figure
Appended drawing reference indicates same or similar structure, thus the detailed description that will omit them.
Referring to figs. 1 to Fig. 4, one aspect according to the present utility model provides a kind of PDC drill bit, which can be with
Including drill body 101, cutting wing 102, cutting tooth 103 and vibration device 104, wherein drill body 101 be can have
Drill bit.Cutting wing 102 can be formed in the drill bit bizet, and perforation can be set on the cutting wing 102, with
For accommodating cutting tooth 103.Cutting tooth 103 can be fixedly installed in the perforation.Vibration device 104, which is rotatablely arranged at, to be cut
On the sharpener wing 102, and the vibration device 104 may include vibrating shaft 106 and the vibration tooth for being set to 106 periphery of vibrating shaft
105.On the one hand, which can be rotated in the PDC drill bit course of work, and vibration tooth 105 can connect with stratum
It touches and stratum is oppressed, to split rock in advance, improve working efficiency.On the other hand, due to the presence of the vibration tooth 105, make
Vibration device 104 discontinuously contacts stratum in rotary course, so that PDC drill bit be made to generate vibration, and then can reduce friction
Fever, extends the service life of PDC drill bit.A specific embodiment according to the present utility model, wherein the utility model provides
Drill body 101 can be steel body, but not limited to this.A specific embodiment according to the present utility model, wherein vibrating
Tooth 105 can be pick, can be alloy pick such as, but not limited to, all within the protection scope of the present utility model.
With continued reference to Fig. 1 to Fig. 4, an embodiment according to the present utility model, wherein vibration device 104 is set as to turn
Dynamic ground, may include multiple structural forms.Specifically, vibrating shaft 106 can be set to rotatably be set to cutting wing 102
On, vibration tooth 105 can be fixedly installed on vibrating shaft 106.
A specific embodiment according to the present utility model, wherein vibrating shaft 106 is the vibrating shaft in rotatable situation
106 can be set to column structure form or stepped shaft structure form, wherein the both ends of column structure or stepped shaft structure
Both ends are rotatablely arranged at respectively on cutting wing 102.A specific embodiment according to the present utility model, wherein vibrating shaft
In the case that 106 is column structure forms, vibration tooth 105 can be fixed on the outer peripheral surface of the vibrating shaft 106.Vibrating shaft
In the case that 106 is stepped shaft structure forms, wherein the diameter of the axis at middle part can be greater than the diameter of the axis at both ends, tooth is vibrated
105 can be fixedly installed on the outer peripheral surface of the axis in the middle part of this, all within the protection scope of the present utility model.
With continued reference to Fig. 1 to Fig. 4, a specific embodiment according to the present utility model, wherein the periphery of vibrating shaft 106 is also
Connector 107 can be set, which can be wrapped in the periphery setting of vibrating shaft 106, which can be with
It is set as being fixedly connected on the periphery of vibrating shaft 106, may be set to be the periphery for being rotationally sheathed on vibrating shaft 106.
With continued reference to Fig. 1 to Fig. 4, an embodiment according to the present utility model, wherein vibrating shaft 106 is to be fixedly installed on
In the case where cutting on wing 102, connector 107 is rotationally sheathed on the periphery of vibrating shaft 106, and vibration tooth 105 can be consolidated
Surely it is set to the periphery of connector 107.Wherein, in the case that vibrating shaft 106 is rotatablely arranged on cutting wing 102, even
Fitting 107 can be set to the periphery of vibrating shaft 106 with fixing sleeve, may be set to be rotationally, wherein vibration tooth 105 can be consolidated
Surely it is set on the periphery of connector 107, it is all within the protection scope of the present utility model.
A specific embodiment according to the present utility model, wherein vibration tooth 105 can be fixed on by way of inlaying
On vibrating shaft 106, the periphery of connector 107 can also be fixed on by way of inlaying, but not limited to this, other fixation sides
Formula is also within the protection scope of the present utility model.
Referring to Fig. 3 and Fig. 4, an embodiment according to the present utility model, wherein not including connector in vibration device 104
In the case where 107, shrinkage pool can be set on vibrating shaft 106, vibration tooth 105 may include that fixation is embedded in vibrating shaft 106
Part and the part that is exposed to outside vibrating shaft 106.Vibration tooth 105, which is exposed to the part outside vibrating shaft 106, to be set
It is set to cylindrical structure, may be set to be conical structure, it is all within the protection scope of the present utility model.It is shown in Fig. 3
Vibration tooth 105 is exposed to a kind of specific embodiment that the part outside vibrating shaft 106 is conical structure, wherein vibration tooth 105
One end in conjunction with the periphery of vibrating shaft 106 can be defined as bottom end, one end opposite with bottom end can be defined as top, vibration
The cross sectional dimensions of movable tooth 105 can be gradually reduced from the bottom end to top.A specific embodiment according to the present utility model,
Wherein vibration tooth 105 can also be the pyramidal structure of other shapes, also within the protection scope of the present utility model.
With continued reference to Fig. 3 and Fig. 4, an embodiment according to the present utility model, wherein vibration device 104 includes connector
In the case where 107, shrinkage pool can be set on connector 107, vibration tooth 105 may include that fixation is embedded in connector 107
Part and the part that is exposed to outside connector 107.Vibration tooth 105, which is exposed to the part outside connector 107, to be set
It is set to cylindrical structure, may be set to be conical structure, vibrates one end in conjunction with the periphery of connector 107 of tooth 105
It can be bottom end, one end opposite with bottom end is top, and the cross sectional dimensions of vibration tooth 105 is gradually reduced from bottom end to top.
A specific embodiment according to the present utility model, wherein vibration tooth 105 can also be the pyramidal structure of other shapes, also at this
In the protection scope of utility model.
An embodiment according to the present utility model, wherein drill body 101 can have central axis, along perpendicular in
The observation of heart axis direction, vibrating shaft 106 can extend along the radial direction of drill body 101.In fact, according to actual needs,
The central axis of the vibrating shaft 106 can be vertical with the central axial direction of drill body 101, and but not limited to this, the vibration
The central axis of axis 106 can angular range between the central axis of drill body 101 can be 75 ° -105 °.
A specific embodiment according to the present utility model, wherein can be set on cutting wing 102 for accommodating vibration
The mounting groove of moving axis 106, specifically, the mounting groove can be set at the top of cutting wing 102, such as, but not limited to, the peace
Tankage can be recessed inwardly by top end face and be formed, and vibrating shaft 106 is fixed in the mounting groove.According to the present utility model one
Specific embodiment, mounting groove can be processed to be formed by milling cutter, and but not limited to this.The vibrating shaft 106 of vibration device 104 is pacified
After in mounting groove loaded on cutting wing 102, can using vibrating shaft 106 is fixed by the way of welding, but not as
Limit.Another specific embodiment according to the present utility model, wherein can be set on cutting wing 102 for accommodating vibrating shaft
106 mounting hole, vibrating shaft 106 can be arranged in the mounting hole, be limited in the mounting hole with circumferential.It is practical new according to this
One specific embodiment of type, wherein the mounting hole can be through-hole, after vibrating shaft 106 is inserted into mounting hole, then will
The outboard end of mounting hole blocks, and is deviate from out of mounting hole with preventing vibrating shaft 106 from moving axially.
With continued reference to Fig. 1 to Fig. 4, an embodiment according to the present utility model, during wherein drill body 101 can have
Mandrel line, vibration tooth 105 can be zero between first size in the size range of the projection in central axial direction, the first ruler
The very little size that can be equal to projection of the cutting tooth 103 in central axial direction.First size can be the bottom end of vibration tooth 105
Arrive the distance between top, that is to say, that vibration device 104 vibrates tooth 105 in 101 direction of drill body in rotary course
On projection can be with cyclically-varying, when projection size of the vibration tooth 105 in the central axial direction of drill body 101 is the
When one size, the central axis for vibrating tooth 105 can be with the centerline axis parallel of drill body 101, and vibrating tooth 105 at this time can be with
It is contacted with stratum, forms broken rock to oppress stratum.In the central axial direction of vibration tooth 105 and the central axis of drill body 101
In the case that line is parallel, vibrating projection of the highest point of tooth 105 in the central axial direction of drill body 101 can be with cutting
Projection of the highest point of tooth 103 in the central axial direction of drill body 101 is overlapped.At this point it is possible to define the vibration tooth 105
Height it is identical as the height of cutting tooth 103, that is to say, that vibration tooth 105 contact stratum in the case where, cutting tooth 103 also with
Contact stratum, with to stratum formed cut.
With continued reference to Fig. 2 to Fig. 4, an embodiment according to the present utility model, wherein vibration tooth 105 can be multiple,
Multiple vibration teeth 105 can be distributed around the same peripheral annular of vibrating shaft 106, and the vibration tooth 105 between adjacent annular circumference can
To be staggered.
With continued reference to Fig. 1 and Fig. 2, an embodiment according to the present utility model, PDC drill bit can have multiple bites
The wing 102, part, which is cut, can be set vibration device 104 on wing 102, the cutting wing 102 with vibration device 104
It can be spaced setting each other, but not limited to this, according to actual needs, can be set on each cutting wing 102
There is the vibration device 104.It is shown in Fig. 2, which can have 4 cutting wings 102, cutting wing separately
A vibration device 104 can be respectively arranged on 102.Certainly, it is each provided on the cutting wing 102 of vibration device 104
It can be set that there are two can be provided on perhaps each cutting wing 102 of multiple vibration devices 104 or PDC drill bit
The vibration device 104, it is all within the protection scope of the present utility model.A specific embodiment according to the present utility model, wherein
Cutting wing 102 can be 2-8, all within the protection scope of the present utility model.
With continued reference to Fig. 1 and Fig. 2, an embodiment according to the present utility model, wherein PDC drill bit can also include hydrophthalmia
108, hydrophthalmia 108 can be set between adjacent cutting wing 102, can be set nozzle in hydrophthalmia 108, and nozzle can be with
Water source connection, to be cleaned to cutting tooth 103.A specific embodiment according to the present utility model, the wherein number of hydrophthalmia 108
Amount can be related with the rotation speed of the working environment of PDC drill bit and PDC drill bit, can according to need it is arbitrarily selected, such as
But being not limited to hydrophthalmia 108 can be set to 4-40, and each hydrophthalmia 108 can be connected to water source.
A specific embodiment according to the present utility model, wherein the inside of the drill body 101 of PDC drill bit can be set
There is internal cavity, which can be connected to external water source and hydrophthalmia 108 respectively.A specific implementation according to the present utility model
Mode, wherein the structure of drill body 101 can be Elliptic Cylinder, square cylinder or other skilled in the art it is conceivable that
Column body structure it is all within the protection scope of the present utility model, according to a kind of specific embodiment of the utility model, provide
Tubular drill body 101, as shown in Figure 1, the diameter of the drill bit ontology 101 may be selected to be 127mm to 431.8mm, or
Person can be 5 inches to 17 inches.
A specific embodiment according to the present utility model, wherein 2-8 bite can be set on each PDC drill bit
The wing 102 can be set multiple cutting tooths 103 on each cutting wing 102, such as show in Fig. 2, each cutting wing 102
On at least 5 cutting tooths 103.Wherein cutting tooth 103 may include being set to the main cutting tooth of cutting 102 bizet of wing and setting
It is placed in the gauge teeth of cutting 102 bizet outer peripheral surface of wing, wherein can be at least 10 main cutting teeth on entire PDC drill bit.Root
According to a specific embodiment of the utility model, wherein the diameter of main cutting tooth can be 10-25mm, highly can be 5-
20mm。
Described feature, structure or characteristic can be incorporated in one or more embodiments in any suitable manner
In.In the above description, many details are provided to provide and fully understand to the embodiments of the present invention.So
And it will be appreciated by persons skilled in the art that the technical solution of the utility model can be practiced without in the specific detail
It is one or more, or can be using other methods, component, material etc..In other cases, it is not shown in detail or describes public affairs
Know structure, material or operation to avoid the various aspects of fuzzy the utility model.
Claims (10)
1. a kind of PDC drill bit characterized by comprising
Drill body has drill bit；
Wing is cut, the drill bit is formed in, is provided with perforation on the cutting wing；
Cutting tooth is set in the perforation；
Vibration device is rotatablely arranged on the cutting wing, and the vibration device includes vibrating shaft and is set to institute
State the vibration tooth of vibrating shaft periphery.
2. PDC drill bit as described in claim 1, which is characterized in that the vibrating shaft is rotatablely arranged at the bite
On the wing, the vibration tooth is fixedly installed on the periphery of the vibrating shaft.
3. PDC drill bit as claimed in claim 2, which is characterized in that it is described vibration tooth in conjunction with the periphery of the vibrating shaft
One end be bottom end, one end opposite with the bottom end is top, and the cross sectional dimensions of the vibration tooth is from the bottom end to institute
Top is stated to be gradually reduced.
4. PDC drill bit as described in claim 1, which is characterized in that the vibrating shaft is fixedly installed on the cutting wing,
The vibration device further includes connector, and the connector is rotationally sheathed on the periphery of the vibrating shaft, the vibration tooth
It is fixedly installed on the periphery of the connector.
5. PDC drill bit as claimed in claim 4, which is characterized in that it is described vibration tooth in conjunction with the periphery of the connector
One end be bottom end, one end opposite with the bottom end is top, and the cross sectional dimensions of the vibration tooth is from the bottom end to institute
Top is stated to be gradually reduced.
6. the PDC drill bit as described in any one of claims 1 to 5, which is characterized in that the drill body has central axis
Line, is observed along perpendicular to the central axial direction, and the vibrating shaft is radially extended along the drill body.
7. the PDC drill bit as described in any one of claims 1 to 5, which is characterized in that the drill body has central axis
Line, the size range of the projection of the vibration tooth in the central axial direction are zero between first size, described first
Size is equal to the size of projection of the cutting tooth in the central axial direction.
8. the PDC drill bit as described in any one of claims 1 to 5, which is characterized in that the vibration tooth is multiple, Duo Gesuo
The same peripheral annular that vibration tooth is stated around the vibrating shaft is distributed, and the vibration tooth between adjacent annular circumference is staggered.
9. the PDC drill bit as described in any one of claims 1 to 5, which is characterized in that be provided on the cutting wing of part
The vibration device, the cutting wing with the vibration device is each other every setting.
10. the PDC drill bit as described in any one of claims 1 to 5, which is characterized in that the PDC drill bit further includes hydrophthalmia,
The hydrophthalmia is set between the adjacent cutting wing, and nozzle is provided in the hydrophthalmia, and the nozzle is connected to water source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820318943.2U CN208184666U (en) | 2018-03-08 | 2018-03-08 | PDC drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820318943.2U CN208184666U (en) | 2018-03-08 | 2018-03-08 | PDC drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208184666U true CN208184666U (en) | 2018-12-04 |
Family
ID=64441278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820318943.2U Active CN208184666U (en) | 2018-03-08 | 2018-03-08 | PDC drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208184666U (en) |
-
2018
- 2018-03-08 CN CN201820318943.2U patent/CN208184666U/en active Active
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