CN206816253U - A kind of new rotary digging knife shape cutter teeth - Google Patents
A kind of new rotary digging knife shape cutter teeth Download PDFInfo
- Publication number
- CN206816253U CN206816253U CN201720495145.2U CN201720495145U CN206816253U CN 206816253 U CN206816253 U CN 206816253U CN 201720495145 U CN201720495145 U CN 201720495145U CN 206816253 U CN206816253 U CN 206816253U
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- China
- Prior art keywords
- diamond
- composite polycrystal
- working face
- pick
- pick body
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model is related to rotary digging knife shape cutter teeth, title is a kind of new rotary digging knife shape cutter teeth, including pick body and the composite polycrystal-diamond that welds above, pick body have working face, and composite polycrystal-diamond is welded on working face, it is characterized in that：Film trap is provided with above the working face of pick body, PCD compacts brazing is in film trap, gauge groove is further opened with behind composite polycrystal-diamond, also hard alloy gauge bar is fixed in gauge groove, described composite polycrystal-diamond is multiple, multiple composite polycrystal-diamonds are presented multiple rows of multiple row and are distributed on working face, and low, the middle high state of front and rear sides is presented in described composite polycrystal-diamond on working face, and described pick body is made using alloy steel products.The advantages of such new rotary digging knife shape cutter teeth is with when hard and above hardness rock stratum is crept into more preferable combination property, higher drilling efficiency and longer service life.
Description
Technical field
The utility model is related to rotary digging knife shape cutter teeth, more specifically can be suitably used for various rock-soil layers, particularly in it is hard
And the rotary drill tools pick of above hardness rock stratum drilling, belong to rotary drill tools pick field.
Background technology
Rotary drill tools use very extensive in building pile foundation industry, common in the majority with soil layer and soft stratum, but
Hard and above hardness rock stratum in being run into much in some building pile foundations such as high ferro roadbed piling at present.
Pick includes pick body and the composite polycrystal-diamond welded above, and composite polycrystal-diamond is directly welded at
On pick body, there is composite polycrystal-diamond easily to come off, the shortcomings that influenceing the service life of pick, cause to drive piles the time and
Cost can greatly increase, and very big trouble is brought to construction.
The content of the invention
Problem to be solved in the utility model is aiming at disadvantages mentioned above, there is provided one kind hard and above hardness rock stratum in
There is the new rotary digging knife shape cutter teeth of more preferable combination property, higher drilling efficiency and longer service life during drilling.
Technical scheme is used by the utility model solves its technical problem：A kind of new rotary digging knife shape cutter teeth, including
Pick body and the composite polycrystal-diamond welded above, pick body have working face, and composite polycrystal-diamond is welded on work
Make on face, it is characterized in that：Film trap is provided with above the working face of pick body, PCD compacts brazing is in film trap, poly-
Gauge groove is further opened with behind diamond composite sheet, also hard alloy gauge bar is fixed in gauge groove.
Further speaking, described composite polycrystal-diamond is multiple that multiple composite polycrystal-diamonds present more
Row's multiple row is distributed on working face.
Further speaking, the low, middle high of front and rear sides is presented in described composite polycrystal-diamond on working face
State.
Further speaking, setting is tilted backwards before composite polycrystal-diamond, composite polycrystal-diamond
Above sweptback angle is between 5~20 °.
Further speaking, described pick body is made using alloy steel products.
The beneficial effects of the utility model are：Such new rotary digging knife shape cutter teeth has the hard and above hardness rock stratum in
There is the advantages of more preferable combination property, higher drilling efficiency and longer service life during drilling.
Brief description of the drawings
Fig. 1 is the main structure diagram of the utility model rotary digging knife shape cutter teeth.
Fig. 2 is Fig. 1 left view schematic diagrames.
In figure：1. the working face of 2. composite polycrystal-diamond of pick body, 3. hard alloy gauge bar 4..
Sweptback angle before α-polycrystalline diamond.
Embodiment
The utility model is further illustrated below in conjunction with the accompanying drawings.
As shown in Figure 1, 2, a kind of new rotary digging knife shape cutter teeth, including pick body 1 and the polycrystalline diamond that welds above are answered
Piece 2 is closed, pick body has working face 4, and composite polycrystal-diamond is welded on working face, it is characterized in that：The work of pick body
Film trap is provided with above face, PCD compacts brazing is further opened with protecting in film trap behind composite polycrystal-diamond
Footpath groove, also hard alloy gauge bar 3 are fixed in gauge groove.
The utility model in use, its be arranged on drilling pipe below, under the pressure of rotary drilling rig and moment of torsion, new rotary digging knife
Composite polycrystal-diamond press-in rock on type pick body, the new external wall soldering of rotary digging knife shape cutter teeth have hard alloy gauge
Bar plays a part of protecting pick body and drilling pipe in drilling process, it is possible to achieve the purpose of this utility model.
Further speaking, described composite polycrystal-diamond is multiple that multiple composite polycrystal-diamonds present more
Row's multiple row is distributed on working face.
Further speaking, the low, middle high of front and rear sides is presented in described composite polycrystal-diamond on working face
State.
Further speaking, setting is tilted backwards before composite polycrystal-diamond, composite polycrystal-diamond
Above sweptback angle [alpha] is between 5~20 °.
Further speaking, described pick body is made using alloy steel products.
Specific embodiment of the utility model is the foregoing is only, but architectural feature of the present utility model is not limited to this,
Any those skilled in the art in field of the present utility model, all cover of the present utility model by the change or modification made
In the scope of the claims.
Claims (6)
1. a kind of new rotary digging knife shape cutter teeth, including pick body and the composite polycrystal-diamond that welds above, pick body have
Working face, composite polycrystal-diamond are welded on working face, it is characterized in that：Film trap is provided with above the working face of pick body, is gathered
Diamond composite sheet soldering is further opened with gauge groove, also hard alloy in film trap behind composite polycrystal-diamond
Gauge bar is fixed in gauge groove.
2. pick according to claim 1, it is characterized in that：Described composite polycrystal-diamond is multiple, Duo Geju
Diamond composite sheet is presented multiple rows of multiple row and is distributed on working face.
3. pick according to claim 1 or 2, it is characterized in that：Described composite polycrystal-diamond is on working face
Low, the middle high state of existing front and rear sides.
4. pick according to claim 1 or 2, it is characterized in that：Setting is tilted backwards before polycrystalline diamond, is gathered
Sweptback angle is between 5~20 ° before diamond composite sheet.
5. pick according to claim 3, it is characterized in that：It is to tilt backwards setting before composite polycrystal-diamond
, sweptback angle is between 5~20 ° before composite polycrystal-diamond.
6. pick according to claim 3, it is characterized in that：Described pick body is made using alloy steel products.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720495145.2U CN206816253U (en) | 2017-05-06 | 2017-05-06 | A kind of new rotary digging knife shape cutter teeth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720495145.2U CN206816253U (en) | 2017-05-06 | 2017-05-06 | A kind of new rotary digging knife shape cutter teeth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206816253U true CN206816253U (en) | 2017-12-29 |
Family
ID=60754324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720495145.2U Active CN206816253U (en) | 2017-05-06 | 2017-05-06 | A kind of new rotary digging knife shape cutter teeth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206816253U (en) |
-
2017
- 2017-05-06 CN CN201720495145.2U patent/CN206816253U/en active Active
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