CN208220646U - Diamond bit for engineering investigation - Google Patents
Diamond bit for engineering investigation Download PDFInfo
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- CN208220646U CN208220646U CN201820384906.1U CN201820384906U CN208220646U CN 208220646 U CN208220646 U CN 208220646U CN 201820384906 U CN201820384906 U CN 201820384906U CN 208220646 U CN208220646 U CN 208220646U
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- cutting tooth
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Abstract
The utility model provides a kind of diamond bit for engineering investigation, including drilling bit steel body and the drill bit sector cutting tooth that the drilling bit steel body front end is arranged in, the mouth of a river is provided between adjacent two fan-shaped cutting tooths, the sector cutting tooth is composed of fan-shaped column cutting tooth and fan-shaped scalariform cutting tooth, and the front end cutting face of the sector scalariform cutting tooth is slope.The diamond bit is scientific and reasonable for structure, excellent to wide adaptability, the drilling effect on stratum.
Description
Technical field
The utility model relates to Geological Engineering technical field, in particular to a kind of diamond bits for engineering investigation.
Background technique
Currently, the diamond bit market share of the China for engineering investigation accounts for entire field of drill about 30%.Engineering is surveyed
The characteristics of examining is that drilling is shallow, is usually no more than 150m, but the stratum of the depth and variation of lithological are big.It is frequently moved to adapt to drilling machine
It is dynamic, small portable drilling machine is mostly used, the pressure capacity of portable drilling rig is small and rotary torque is small.And existing normal diamond drill bit table
Reveal drilling timeliness it is low, drilling effect is undesirable, and the service life of drill bit is not also grown.
Existing manufacture diamond bit is frequently with hot-press method or electro-plating method.Due to the drill bit knot of both methods manufacture
Structure is relatively simple and single, and it is bad that effect is but shown for drilling complexation and for engineering investigation.Electro-plating method system
Although the drill bit adaptability made is wider, rate of penetration is higher, reduces since the gauge effect of drill bit is undesirable using the longevity
Life.
Summary of the invention
The purpose of this utility model is that in view of the deficiencies of the prior art, providing a kind of scientific and reasonable for structure, to stratum
The excellent diamond bit for engineering investigation of wide adaptability, drilling effect.
To achieve the above object, the diamond bit for engineering investigation of the utility model, including drilling bit steel body and set
Set the drill bit sector cutting tooth in the drilling bit steel body front end, be provided with the mouth of a river between adjacent two fan-shaped cutting tooths, it is special it
Be in: the sector cutting tooth is composed of fan-shaped column cutting tooth and fan-shaped scalariform cutting tooth, and the sector scalariform is cut
The front end cutting face for cutting tooth is slope.
Any one of following scheme can be used as the preferred embodiment of the utility model diamond bit:
Drill bit annular groove is offered in the sector cutting tooth；The quantity of the drill bit annular groove is 1~3.
The ratio between bottom labial surface projected area of the column cutting tooth and scalariform cutting tooth is 0.30~0.45 ︰ 1.
The front end cutting face and bit cutting plane form the fan-shaped cutting angle of back of tooth, and the fan-shaped cutting angle of back of tooth takes
Value is in 15 °~30 ° ranges.
The diamond bit for engineering investigation of the utility model leads to from engineering investigation feature and formation characteristics
It crosses and is designed as being composed of fan-shaped column cutting tooth and fan-shaped scalariform cutting tooth by drill bit sector cutting tooth, and the sector
The front end cutting face of scalariform cutting tooth is designed as slope.Wherein fan-shaped column cutting tooth is the main body of fractured rock, fan-shaped ladder
Shape cutting tooth plays a part of to support fan-shaped column cutting tooth, while playing addi-tional crusher rock.The drill bit of this structure bores
The fan-shaped cutting tooth of head and the contact area of bottom hole rock are smaller, and the contact area of drill bit and rock can be effectively reduced, and traditional
Drill bit is compared under the conditions of identical bit pressure, can significantly improve drill bit than pressure value, be conducive to cut rock, be adapted to reconnoitre
Type portable drilling rig drilling；Simultaneously again can effectively cooling diamond drill bit and timely cleaning hole bed rock powder, improve the effect of fractured rock
Rate.The drill bit dual broken rock that plays the role of compact bit and normal diamond drill bit in this way, fundamentally changes common gold
The deficiency of hard rock drill bit.
Further, after opening up drill bit annular groove in the fan-shaped cutting tooth cutting face, it is broken which changes drill bit
The mode of crushed rocks, can device to hole bed rock stone be crushed in a manner of ring by dividing, and increase the scope of freedom of bottom hole rock, improve brill
Conformability of the head to rock.Bit operation tooth is inhomogeneous structure, and the diamond concentration of fan-shaped column cutting tooth is high, carcass is hard
Degree is high, and wearability is strong, small with rock contact area, thus entire drill bit sector cutting tooth plays compact bit and common Buddha's warrior attendant
The dual broken rock of aiguille acts on, and fundamentally changes deficiency existing for normal diamond drill bit.
Detailed description of the invention
Fig. 1 is a kind of diamond bit bottom labial surface structural schematic diagram for engineering investigation.
Fig. 2 is the A of Fig. 1 to expanded schematic diagram.
Fig. 3 is fan-shaped cutting tooth structural schematic diagram.
In attached drawing, the corresponding relationship of each label and components are as follows:
1, drilling bit steel body, 2, fan-shaped cutting tooth, 3, the mouth of a river, 4 fan-shaped column cutting tooths, 5, fan-shaped scalariform cutting tooth, before 5.1
Hold cutting face, 6, the fan-shaped cutting angle of back of tooth, 7, drill bit annular groove.
Specific embodiment
The diamond bit with specific embodiment to the utility model for engineering investigation is made with reference to the accompanying drawings of the specification
It is further described.
Embodiment 1
A kind of diamond bit for engineering investigation as shown in Figure 1 and Figure 2, including drilling bit steel body 1 and setting are in drill bit
The fan-shaped cutting tooth 2 of 1 front end of steel body is provided with the mouth of a river 3 between adjacent two fan-shaped cutting tooths 2, and mouth of a river number is eight, Mei Geshui
Mouth width 6.5mm, each depth 1.5mm of interior external flume 9；
As shown in figure 3, fan-shaped cutting tooth 2 is composed of fan-shaped column cutting tooth 4 and fan-shaped scalariform cutting tooth 5, in Fig. 3
Fan-shaped column cutting tooth 4 (polyhedron ABDCGEFH constitute) in Fig. 3, fan-shaped 5 (polyhedron CDLKJIHG structure of scalariform cutting tooth
At)；The front end cutting face 5.1 of fan-shaped scalariform cutting tooth 5 is slope (face CKJG composition)；One is offered in fan-shaped cutting tooth 2
Drill bit annular groove 7, drill bit groove depth 2mm, wide 2.5mm.Bottom labial surface (face BDHF composition) and the sector ladder of fan-shaped column cutting tooth 4
The ratio between projected area of 5 bottom labial surface of shape cutting tooth (face DLIH composition) is 0.35 ︰ 1.Front end cutting face 5.1 and bit cutting plane
The fan-shaped cutting angle of back of tooth 6 is formed, the sector cutting angle of back of tooth 6 is 18 °, a height of 12mm (Fig. 3 of the working lining of fan-shaped column cutting tooth 4
Middle conductor AB length).
Embodiment 2
A kind of diamond bit for engineering investigation, including drilling bit steel body 1 and the sector that 1 front end of drilling bit steel body is arranged in
Cutting tooth 2 is provided with the mouth of a river 3 between adjacent two fan-shaped cutting tooths 2, and mouth of a river number is seven, each wide 5mm in the mouth of a river, inside and outside water
Each depth 1.5mm of slot 9；
As shown in figure 3, fan-shaped cutting tooth 2 is composed of fan-shaped column cutting tooth 4 and fan-shaped scalariform cutting tooth 5, in Fig. 3
Fan-shaped column cutting tooth 4 (polyhedron ABDCGEFH constitute) in Fig. 3, fan-shaped 5 (polyhedron CDLKJIHG structure of scalariform cutting tooth
At)；The front end cutting face 5.1 of fan-shaped scalariform cutting tooth 5 is slope (face CKJG composition)；One is offered in fan-shaped cutting tooth 2
Drill bit annular groove 7, drill bit groove depth 2mm, wide 2mm.The bottom labial surface (face BDHF composition) of fan-shaped column cutting tooth 4 and fan-shaped scalariform
The ratio between projected area of 5 bottom labial surface of cutting tooth (face DLIH composition) is 0.45 ︰ 1.Front end cutting face 5.1 and bit cutting planar shaped
The angle of back of tooth 6 is cut at sector, the sector cutting angle of back of tooth 6 is 15 °, and a height of 12mm of working lining of fan-shaped column cutting tooth 4 is (in Fig. 3
Line segment AB length).
Embodiment 3
A kind of diamond bit for engineering investigation, including drilling bit steel body 1 and the sector that 1 front end of drilling bit steel body is arranged in
Cutting tooth 2 is provided with the mouth of a river 3 between adjacent two fan-shaped cutting tooths 2, and mouth of a river number is eight, each wide 5mm in the mouth of a river, inside and outside water
Each depth 1.5mm of slot 9；
As shown in figure 3, fan-shaped cutting tooth 2 is composed of fan-shaped column cutting tooth 4 and fan-shaped scalariform cutting tooth 5, in Fig. 3
Fan-shaped column cutting tooth 4 (polyhedron ABDCGEFH constitute) in Fig. 3, fan-shaped 5 (polyhedron CDLKJIHG structure of scalariform cutting tooth
At)；The front end cutting face 5.1 of fan-shaped scalariform cutting tooth 5 is slope (face CKJG composition)；Two are offered in fan-shaped cutting tooth 2
Drill bit annular groove 7, drill bit groove depth 2mm, wide 2.2mm.Bottom labial surface (face BDHF composition) and the sector ladder of fan-shaped column cutting tooth 4
The ratio between projected area of 5 bottom labial surface of shape cutting tooth (face DLIH composition) is 0.40 ︰ 1；Front end cutting face 5.1 and bit cutting plane
The fan-shaped cutting angle of back of tooth 6 is formed, the sector cutting angle of back of tooth 6 is 25 °, a height of 10mm (Fig. 3 of the working lining of fan-shaped column cutting tooth 4
Middle conductor AB length).
Claims (5)
1. a kind of diamond bit for engineering investigation, including drilling bit steel body (1) and setting are in the drilling bit steel body (1) front end
Fan-shaped cutting tooth (2), be provided with the mouth of a river (3) between adjacent two fan-shaped cutting tooths (2), it is characterised in that: the fan-shaped cutting
Tooth (2) is composed of fan-shaped column cutting tooth (4) and fan-shaped scalariform cutting tooth (5), before the sector scalariform cutting tooth (5)
Holding cutting face (5.1) is slope.
2. the diamond bit according to claim 1 for engineering investigation, it is characterised in that: the sector cutting tooth
(2) drill bit annular groove (7) are offered on.
3. the diamond bit according to claim 1 for engineering investigation, it is characterised in that: the sector column cutting
The ratio between tooth (4) and the projected area of bottom labial surface of fan-shaped scalariform cutting tooth (5) are 0.30~0.45 ︰ 1.
4. the diamond bit according to claim 1 for engineering investigation, it is characterised in that: the front end cutting face
(5.1) form the fan-shaped cutting angle of back of tooth (6) with bit cutting plane, the value of the fan-shaped cutting angle of back of tooth (6) 15 °~
30 ° of ranges.
5. the diamond bit according to claim 2 for engineering investigation, it is characterised in that: the drill bit annular groove
(7) quantity is 1~3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820384906.1U CN208220646U (en) | 2018-03-21 | 2018-03-21 | Diamond bit for engineering investigation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820384906.1U CN208220646U (en) | 2018-03-21 | 2018-03-21 | Diamond bit for engineering investigation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208220646U true CN208220646U (en) | 2018-12-11 |
Family
ID=64504651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820384906.1U Active CN208220646U (en) | 2018-03-21 | 2018-03-21 | Diamond bit for engineering investigation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208220646U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108691509A (en) * | 2018-03-21 | 2018-10-23 | 武汉万邦激光金刚石工具股份有限公司 | Diamond bit and preparation method thereof for engineering investigation |
-
2018
- 2018-03-21 CN CN201820384906.1U patent/CN208220646U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108691509A (en) * | 2018-03-21 | 2018-10-23 | 武汉万邦激光金刚石工具股份有限公司 | Diamond bit and preparation method thereof for engineering investigation |
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