CN207553973U - The anti abrasive composite sheet Noncoring drill bit of outer diameter - Google Patents
The anti abrasive composite sheet Noncoring drill bit of outer diameter Download PDFInfo
- Publication number
- CN207553973U CN207553973U CN201721571714.3U CN201721571714U CN207553973U CN 207553973 U CN207553973 U CN 207553973U CN 201721571714 U CN201721571714 U CN 201721571714U CN 207553973 U CN207553973 U CN 207553973U
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- Prior art keywords
- wing head
- ditch
- drill bit
- wing
- placement
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Abstract
The anti abrasive composite sheet Noncoring drill bit of outer diameter, including the ontology for being in sleeve shaped and circular one group of wing head for being distributed on ontology periphery one end；One group of wing head is on same plane in the radial direction and including at least three wing heads；Wing head is equipped with the placement ditch of at least two parallel arrangements, and placement ditch includes the radial section being located on wing head upper surface and the axial direction part on wing head exterior arc surface, radial section are connected with axial direction part；It disposes in the radial section and axial direction part of ditch and is respectively arranged with more than two diamond compacts, in the one side wall of diamond compact one end implantation placement ditch, the other end exposes in placement ditch and towards another side wall of placement ditch.The utility model compares existing indent multiple-fin Noncoring drill bit, diamond compact quantity in single wing head increases, and it is distributed at wing head upper surface and exterior arc surface, this so that the wearability of drill bit in drilling process is enhanced, outer diameter is not easy to wear, for service life into increase, when drilling deep hole, can also reach design bore.
Description
Technical field
The utility model is related to the Noncoring drill bit of geological drilling, particularly a kind of anti abrasive composite sheet centreless of outer diameter bores
Head.
Background technology
Indent multiple-fin Noncoring drill bit is widely used in coal mine, geology oil exploration, quarrying and Tunnel Engineering and drills.With three
For wing Noncoring drill bit, existing coreless bit includes drill body, wing head, diamond compact and column.Drill bit sheet
Body is in the sleeve shaped of upper end closed lower ending opening, the inlet opening connected with its endoporus is equipped on upper surface, outside upper end
Wall is equipped with the chip-removal hole connected with its endoporus.Wing head quantity is three, and three wing heads are uniformly fixed in drill body in a ring
Upper end；Diamond compact has multi-disc, proper alignment and is fixed on the lateral surface of each wing head respectively；Column is fixed in drill bit
On the upper surface of ontology.
Shortcoming existing for above-mentioned Noncoring drill bit is：Drill bit abrasion resistance is general, the outside of wing head in drilling process
Face (face for being located at outermost radial outside) is easy to wear, and then causes bit operation unstable, and the aperture to be drilled becomes smaller.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, and provide a kind of outer diameter anti abrasive composite sheet centreless
Drill bit.It solves the problems, such as that the lateral surface of existing indent multiple-fin Noncoring drill bit wing head is easy to wear in drilling process.
The technical solution of the utility model is：The anti abrasive composite sheet Noncoring drill bit of outer diameter, the ontology including being in sleeve shaped
With circular one group of wing head for being distributed on ontology periphery one end；One group of wing head is on same plane in the radial direction and wraps
Include at least three wing heads；Wing head is equipped with the placement ditch of at least two parallel arrangements, and placement ditch includes being located on wing head upper surface
Radial section and the axial direction part on wing head exterior arc surface, radial section connected with axial direction part；Dispose the radial section and axial direction of ditch
More than two diamond compacts are respectively arranged in section, the implantation of diamond compact one end is disposed in the one side wall of ditch, separately
One end expose placement ditch in and towards placement ditch another side wall.
The further technical solution of the utility model is：The bared end court of the diamond compact in ditch is respectively disposed in wing head
To identical.
The utility model has the following advantages that compared with prior art：
Compared to existing indent multiple-fin Noncoring drill bit, the quantity of the diamond compact in single wing head increases, and point
Cloth is at wing head upper surface and exterior arc surface, this so that the wearability of drill bit in drilling process is enhanced, and outer diameter is not easy
Abrasion, for service life into increase, when drilling deep hole, can also reach design bore.
The utility model is further described below in conjunction with figure and embodiment.
Description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the vertical view of Fig. 1.
Specific embodiment
Embodiment 1：
As shown in Figs. 1-2, the anti abrasive composite sheet Noncoring drill bit of outer diameter, including being in the ontology 1 of sleeve shaped and surrounding uniformly distributed
One group of wing head in 1 periphery one end of ontology.One group of wing head is on same plane in the radial direction and including three wings
First 2.
Wing head 2 is equipped with the placement ditch 21 of three parallel arrangements, and placement ditch 21 includes the diameter being located on 2 upper surface 22 of wing head
Axial direction part to section and on 2 exterior arc surface 23 of wing head, radial section are connected with axial direction part.Dispose the radial section and axial direction of ditch 21
2-5 diamond compact 24 is respectively arranged in section, the implantation of 24 one end of diamond compact is disposed in the one side wall of ditch 21, separately
One end expose placement ditch 21 in and towards placement ditch 21 another side wall.Respectively dispose the diamond in ditch 21 compound in wing head 2
The bared end of piece 24 is towards identical.All diamond compacts 24 are whole in counterclockwise towards stretching in one group of wing head.
Claims (2)
1. the anti abrasive composite sheet Noncoring drill bit of outer diameter, the ontology (1) including being in sleeve shaped, it is characterized in that：It further includes circular
It is distributed on one group of wing head of ontology (1) periphery one end；One group of wing head be on same plane in the radial direction and including
At least three wing heads (2)；Wing head (2) is equipped with the placement ditch (21) of at least two parallel arrangements, and placement ditch (21) is including being located at
Radial section on wing head (2) upper surface (22) and the axial direction part on wing head (2) exterior arc surface (23), radial section and axial direction part
Connection；More than two diamond compacts (24), diamond are respectively arranged in the radial section and axial direction part of placement ditch (21)
In the one side wall of composite sheet (24) one end implantation placement ditch (21), the other end exposes in placement ditch (21) and towards placement ditch
(21) another side wall.
2. the anti abrasive composite sheet Noncoring drill bit of outer diameter as described in claim 1, it is characterized in that：Each placement ditch in wing head (2)
(21) bared end of the diamond compact (24) in is towards identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721571714.3U CN207553973U (en) | 2017-11-22 | 2017-11-22 | The anti abrasive composite sheet Noncoring drill bit of outer diameter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721571714.3U CN207553973U (en) | 2017-11-22 | 2017-11-22 | The anti abrasive composite sheet Noncoring drill bit of outer diameter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207553973U true CN207553973U (en) | 2018-06-29 |
Family
ID=62680535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721571714.3U Active CN207553973U (en) | 2017-11-22 | 2017-11-22 | The anti abrasive composite sheet Noncoring drill bit of outer diameter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207553973U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107701115A (en) * | 2017-11-22 | 2018-02-16 | 祁东县锋速钻探工具有限公司 | The anti abrasive composite sheet Noncoring drill bit of external diameter |
-
2017
- 2017-11-22 CN CN201721571714.3U patent/CN207553973U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107701115A (en) * | 2017-11-22 | 2018-02-16 | 祁东县锋速钻探工具有限公司 | The anti abrasive composite sheet Noncoring drill bit of external diameter |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |