CN2821135Y - Hard alloy sheet for mine drill bit - Google Patents
Hard alloy sheet for mine drill bit Download PDFInfo
- Publication number
- CN2821135Y CN2821135Y CN 200520025021 CN200520025021U CN2821135Y CN 2821135 Y CN2821135 Y CN 2821135Y CN 200520025021 CN200520025021 CN 200520025021 CN 200520025021 U CN200520025021 U CN 200520025021U CN 2821135 Y CN2821135 Y CN 2821135Y
- Authority
- CN
- China
- Prior art keywords
- hard alloy
- grooves
- utility
- rock drill
- alloy sheet
- 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
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- Earth Drilling (AREA)
Abstract
The utility model belongs to the technical field of the drilling tools, which discloses a hard alloy sheet for mine drill bits. The utility model is mainly characterized in that the hard alloy sheet comprises a sheet body, wherein the bottom of the sheet body is provided with at least two grooves. The contact area between the bottom of the sheet body of the hard alloy sheet for mine drill bits provided by the utility model and the bottom of a straight groove is enlarged. The tightening points are increased. Therefore, the welding is firmer, and meanwhile, the hard alloy material can be saved.
Description
Technical field
The utility model belongs to the drilling tool technical field, relates in particular to a kind of Mine Rock Drill Steel Hard Alloy Slice.
Background technology
Use mono-line bit on hammer drill mostly, current mono-line bit is made of bore bit body and the hard metal tip that is welded in its top flat recess, is plane contact between the bottom of hard metal tip and the flat recess bottom.In the use of hard metal tip, its edge work load is the heaviest, and the middle part work load is lighter relatively, when hard metal tip is scrapped, also can leave over a part of Hardmetal materials, causes unnecessary waste.
The utility model content
The purpose of this utility model just provides a kind of firm welding, the less Mine Rock Drill Steel Hard Alloy Slice of carbide alloy use amount.
For achieving the above object, the technical solution adopted in the utility model is: comprise lamellar body, the bottom of described lamellar body has at least two grooves.
Its additional technical feature is: described groove is a circular arc; Described two grooves are tangent; Be provided with the arc platform between described two grooves; Be provided with platform between described two grooves.
Mine Rock Drill Steel Hard Alloy Slice provided by the utility model compared with prior art, by offering at least two grooves in the lamellar body bottom, and the flat recess bottom shape of bore bit body is complementary with it, make that contact area increases between lamellar body bottom and the flat recess bottom, and the contact point of two grooves makes and has increased fastening point between hard metal tip and flat recess, thereby make hard metal tip and bore bit body firm welding, the existence of groove simultaneously, make that again Hardmetal materials is saved, improved economic benefit.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model Mine Rock Drill Steel Hard Alloy Slice;
Fig. 2 is second kind of structural representation of Mine Rock Drill Steel Hard Alloy Slice;
Fig. 3 is the third structural representation of Mine Rock Drill Steel Hard Alloy Slice.
The specific embodiment
Be described in further details below in conjunction with the structure and the use principle of accompanying drawing the utility model Mine Rock Drill Steel Hard Alloy Slice.
As shown in Figure 1, the utility model Mine Rock Drill Steel Hard Alloy Slice comprises lamellar body 1, and it is tangent that the bottom of lamellar body 1 has 2,3, two grooves 2,3 of two circular grooves.The bottom of lamellar body 1 also can for as shown in Figure 22,3 of two grooves be provided with arc platform 4 or as shown in Figure 3 two 2,3 of grooves be provided with platform 5.No matter which kind of mode of employing so long as offer plural groove in lamellar body 1 bottom, all falls into protection domain of the present utility model.
Claims (5)
1, Mine Rock Drill Steel Hard Alloy Slice comprises lamellar body, it is characterized in that: the bottom of described lamellar body has at least two grooves.
2, Mine Rock Drill Steel Hard Alloy Slice according to claim 1 is characterized in that: described groove is a circular arc.
3, Mine Rock Drill Steel Hard Alloy Slice according to claim 1 is characterized in that: described two grooves are tangent.
4, Mine Rock Drill Steel Hard Alloy Slice according to claim 1 is characterized in that: be provided with the arc platform between described two grooves.
5, Mine Rock Drill Steel Hard Alloy Slice according to claim 1 is characterized in that: be provided with platform between described two grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520025021 CN2821135Y (en) | 2005-10-09 | 2005-10-09 | Hard alloy sheet for mine drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520025021 CN2821135Y (en) | 2005-10-09 | 2005-10-09 | Hard alloy sheet for mine drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2821135Y true CN2821135Y (en) | 2006-09-27 |
Family
ID=37017689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520025021 Expired - Fee Related CN2821135Y (en) | 2005-10-09 | 2005-10-09 | Hard alloy sheet for mine drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2821135Y (en) |
-
2005
- 2005-10-09 CN CN 200520025021 patent/CN2821135Y/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 | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Heibei Liulong Hard Alloy Group Co., Ltd. Assignor: Duan Licheng Contract fulfillment period: 2008.10.31 to 2014.12.31 Contract record no.: 2008130000094 Denomination of utility model: Hard alloy sheet for mine drill bit Granted publication date: 20060927 License type: Exclusive license Record date: 20081119 |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Heibei Liulong Hard Alloy Group Co., Ltd. Assignor: Duan Licheng Contract fulfillment period: 2008.10.31 to 2014.12.31 Contract record no.: 2008130000094 Denomination of utility model: Hard alloy sheet for mine drill bit Granted publication date: 20060927 License type: Exclusive license Record date: 20081119 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.10.31 TO 2014.12.31; CHANGE OF CONTRACT Name of requester: HEBEI LIULONG HARD ALLOY GROUP CO.,LTD. Effective date: 20081119 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060927 Termination date: 20141009 |
|
| EXPY | Termination of patent right or utility model |