CN2821133Y - Novel drill bit - Google Patents
Novel drill bit Download PDFInfo
- Publication number
- CN2821133Y CN2821133Y CN 200520086440 CN200520086440U CN2821133Y CN 2821133 Y CN2821133 Y CN 2821133Y CN 200520086440 CN200520086440 CN 200520086440 CN 200520086440 U CN200520086440 U CN 200520086440U CN 2821133 Y CN2821133 Y CN 2821133Y
- Authority
- CN
- China
- Prior art keywords
- drilling tool
- pricker
- tapering
- drill steel
- bore bit
- Prior art date
- 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.)
- Expired - Fee Related
Links
- 238000005553 drilling Methods 0.000 claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 14
- 239000010959 steel Substances 0.000 claims abstract description 14
- 230000000694 effects Effects 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000011435 rock Substances 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Abstract
The utility model is novel drilling tool, relates to bore bit and cooperates with the novel of drill steel, mainly is made up of bore bit and drill steel, and characteristics are polygons that the pricker tip is designed to have tapering, and puncheon rod hole is designed to and the identical inner polygon that has tapering of the pricker tip.Effectively improved the contact area of the two, the bonding strength height, it is strong to bear turning power, have simple in structure, cooperate firm effect, effectively prolonged the application life of drilling tool.Can be used for the cooperation of various drilling tools such as ball tooth, in-line, twolip, multiple-cutting-edge, abnormity.Applied widely, the bond strength height.
Description
Technical field
The utility model belongs to the drilling tool field, particularly a kind of novel drilling tool that has improved fit system.
Background technology
Drilling tool is made of drill steel and hard alloy drill cooperation, is widely used in the preceding pre-drilled cavity of rock explosions such as mine, water conservancy.In recent years, along with the increase of engineering quantity, China's drilling tool industry development was rapid, drilling tool year consumption improve year by year.Drill steel and bore bit generally adopt the cylinder taper fit, and promptly pricker stretches in the puncheon rod hole of bore bit slightly, strong bonded.The employing internal and external threads structure that also has connects, but because in rock drilling, when cutting into a mountain, anti-impact force of having relatively high expectations and revolution holding capacity, and it is poor that above-mentioned fit system bears turning power, causes between the two in conjunction with insecure, influences the normal use of drilling tool.
Summary of the invention
The purpose of this utility model is to provide a kind of drill steel, bore bit to cooperate firm novel drilling tool.
The utility model is achieved in that
Novel drilling tool mainly is made up of bore bit and drill steel, and the pricker of drill steel stretches in the puncheon rod hole of bore bit slightly, it is characterized in that: above-mentioned pricker is designed to have the polygon of tapering slightly, and above-mentioned puncheon rod hole is designed to and the identical slightly inner polygon that has tapering of pricker.
After the utility model adopts said structure, because drill steel, bore bit adopt the tapering polygon to cooperate, contact area is big, the bonding strength height, angular structures has effectively improved drilling tool revolution torque simultaneously, bear turning power and improve greatly, have effect simple in structure, that cooperation is firm, effectively prolonged the application life of drilling tool.Can be used for the cooperation of various drilling tools such as ball tooth, in-line, multiple-cutting-edge, abnormity.Applied widely, the bond strength height.
Description of drawings
Fig. 1 is the structural representation of bore bit described in the utility model, and Fig. 2 is the structural representation of drill steel described in the utility model, and Fig. 3 is the lateral view of Fig. 2.
In the accompanying drawing, 1 be bore bit, 2 for puncheon rod hole, 3 for drill steel, 4 for pricker slightly.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated.
As shown in drawings, the utility model is a kind of novel drilling tool, mainly is made up of bore bit 1 and drill steel 3, and puncheon rod hole 2 is left in bore bit 1 bottom; Drill steel 3 front ends be pricker slightly 4, the rear end is bit shank, middlely is the body of rod that the body of rod can adopt hexagon or circle.Pricker 4 has certain tapering slightly, and its taper angle generally is designed to＜and 20 °.Pricker 4 Cross-section Design slightly is a polygon, is advisable with regular hexagon, makes it to become the polygon pricker slightly 4 that has tapering.The puncheon rod hole 2 of above-mentioned bore bit 1 is designed to and pricker 4 interior regular hexagons that coincide slightly, also adopts certain tapering, makes it to become the polygon puncheon rod hole 2 that has tapering.The two cooperates by tapering, polygon, has promptly guaranteed the fastness of combination, has improved the revolution holding capacity again.
During use, pricker 4 stretches in the puncheon rod hole 2 slightly, and the two strong bonded has effectively improved application life.
Claims (3)
1, novel drilling tool, mainly form by bore bit (1) and drill steel (3), the pricker of drill steel (3) (4) slightly stretches in the puncheon rod hole (2) of bore bit (1), it is characterized in that: above-mentioned pricker (4) slightly is designed to have the polygon of tapering, and above-mentioned puncheon rod hole (2) is designed to and pricker (4) inner polygon that has tapering of coincideing slightly.
2, novel drilling tool according to claim 1 is characterized in that: above-mentioned polygon is a regular hexagon.
3, novel drilling tool according to claim 1 is characterized in that: above-mentioned polygon is an octagon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520086440 CN2821133Y (en) | 2005-08-24 | 2005-08-24 | Novel drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520086440 CN2821133Y (en) | 2005-08-24 | 2005-08-24 | Novel drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2821133Y true CN2821133Y (en) | 2006-09-27 |
Family
ID=37017687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520086440 Expired - Fee Related CN2821133Y (en) | 2005-08-24 | 2005-08-24 | Novel drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2821133Y (en) |
-
2005
- 2005-08-24 CN CN 200520086440 patent/CN2821133Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANDONG ROCK DRILLING TOOLS CO., LTD. Free format text: FORMER OWNER: LI MINGSUO Effective date: 20130315 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130315 Address after: 252311, No. three, 3 mountain road, West Lake Town, Yanggu County, Shandong, Liaocheng Patentee after: Shandong drilling & Drilling Tools Co., Ltd. Address before: 252311 Shandong three mountain group, 14 West Lake County, Shandong, Yanggu Patentee before: Li Mingsuo |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060927 Termination date: 20130824 |