CN2823529Y - Hard alloy plate for drill bit - Google Patents

Hard alloy plate for drill bit Download PDF

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Publication number
CN2823529Y
CN2823529Y CN 200620024158 CN200620024158U CN2823529Y CN 2823529 Y CN2823529 Y CN 2823529Y CN 200620024158 CN200620024158 CN 200620024158 CN 200620024158 U CN200620024158 U CN 200620024158U CN 2823529 Y CN2823529 Y CN 2823529Y
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CN
China
Prior art keywords
hard alloy
groove
drill bit
alloy sheet
plush copper
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
Application number
CN 200620024158
Other languages
Chinese (zh)
Inventor
段立成
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN 200620024158 priority Critical patent/CN2823529Y/en
Application granted granted Critical
Publication of CN2823529Y publication Critical patent/CN2823529Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model belongs to the technical field of the drilling tools, which discloses a hard alloy sheet used for a drill bit. 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 a circular-arc-shaped groove, and at least one column-shaped convex head is arranged in the groove. The bottom of the sheet body of the hard alloy sheet for a drill bit provided by the utility model is the circular-arc-shaped groove. Therefore, the shape of the bottom of the sheet body of the hard alloy sheet inosculates with the abrasive shape. Raw materials can be saved under the condition that the use effects are not affected. Moreover, the processing is more convenient and the welding is easier. The column-shaped convex head is arranged in the groove, so the sheet body of the hard alloy sheet has more fastening points. Consequently, the welding between the hard alloy sheet and the drill bit is firmer. The utility model improves the impact resistance of the hard alloy sheet, reduces the possibility of falling off and extends the service life of the drill bit.

Description

Rock Drill Steel Using For Hard Alloy Slice
Technical field
The utility model belongs to the drilling tool technical field, relates in particular to a kind of Rock Drill Steel Using For Hard Alloy Slice.
Background technology
Use mono-line bit on hammer drill mostly, mono-line bit is to be made of bore bit body and the hard metal tip that is welded in its top flat recess.Between the bottom of the hard metal tip of presently used mono-line bit and the flat recess bottom is plane contact, and in the use of hard metal tip, its edge work load is the heaviest, the middle part work load is lighter relatively, it is curved to wear and tear, and when hard metal tip was scrapped, the position, intermediate portion was the thickest, thereby can leave over a part of Hardmetal materials, cause waste of raw materials.In addition, owing to be plane contact between the bottom of hard metal tip and the flat recess bottom, not too convenient when welding, impact resistance is not high during use, easily comes off.
The utility model content
The purpose of this utility model just provides and a kind ofly saves material, the Rock Drill Steel Using For Hard Alloy Slice of convenient welding, shock resistance, difficult drop-off.
For achieving the above object, the technical solution adopted in the utility model is:, comprise lamellar body, the bottom of described lamellar body is a circular groove, is provided with at least one cylindricality plush copper in the groove.
Its additional technical feature is: described cylindricality plush copper is to be positioned at of groove centre; Described cylindricality plush copper is two that are symmetricly set in the groove; The height of described cylindricality plush copper highly equates with the groove periphery; Described cylindricality plush copper is a cylinder; Described cylindricality plush copper is oval cylinder; Described cylindricality plush copper is a prism.
Rock Drill Steel Using For Hard Alloy Slice provided by the utility model compared with prior art, have the following advantages: one, the lamellar body bottom is a circular groove, make hard metal tip lamellar body lower curtate shape and wearing and tearing shape match, under the situation that does not influence result of use, saved raw material, and easy to process; They are two years old, in groove, be provided with at least one cylindricality plush copper, during use the cylindricality plush copper is welded mutually with the flat recess bottom of bore bit body, make the hard metal tip lamellar body increase fastening point, and this fastening point is a column construction, thereby makes the welding between hard metal tip and bore bit body be more prone to improve the impact resistance of hard metal tip greatly with firm, reduce the possibility of flake, improved the application life of bore bit.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model Rock Drill Steel Using For Hard Alloy Slice;
Fig. 2 is second kind of structural representation of Rock Drill Steel Using For Hard Alloy Slice;
Fig. 3 is the third structural representation of Rock Drill Steel Using For Hard Alloy Slice;
Fig. 4 is the 4th a kind of structural representation of Rock Drill Steel Using For 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 Rock Drill Steel Using For Hard Alloy Slice.
As shown in Figure 1, 2, 3, the utility model Rock Drill Steel Using For Hard Alloy Slice comprises lamellar body 1, the bottom of lamellar body 1 is a circular groove 2, be provided with a cylindricality plush copper 3 in the groove 2, cylindricality plush copper 3 can be cylinder or oval cylinder as shown in Figure 2 or prism as shown in Figure 3 as shown in Figure 1.Be connected (welding) intensity in order to improve between the bore bit body that constitutes bore bit and hard metal tip, make that the bonding strength of the two is more firm, cylinder plush copper 3 can also be in the groove 2 two of being symmetricly set in as shown in Figure 4, also can be for a plurality of, the height of cylinder plush copper 3 equates with the height of groove 2 peripheries.No matter which kind of mode of employing so long as be provided with cylindricality plush copper 3 in the groove 2 of lamellar body 1 bottom, all falls into protection domain of the present utility model.

Claims (7)

1, Rock Drill Steel Using For Hard Alloy Slice comprises lamellar body, it is characterized in that: the bottom of described lamellar body is a circular groove, is provided with at least one cylindricality plush copper in the groove.
2, Rock Drill Steel Using For Hard Alloy Slice according to claim 1 is characterized in that: described cylindricality plush copper is to be positioned at of groove centre.
3, Rock Drill Steel Using For Hard Alloy Slice according to claim 1 is characterized in that: described cylindricality plush copper is two that are symmetricly set in the groove.
4, Rock Drill Steel Using For Hard Alloy Slice according to claim 1 is characterized in that: the height of described cylindricality plush copper highly equates with the groove periphery.
5, according to claim 1 or 2 or 3 or 4 described Rock Drill Steel Using For Hard Alloy Slices, it is characterized in that: described cylindricality plush copper is a cylinder.
6, according to claim 1 or 2 or 3 or 4 described Rock Drill Steel Using For Hard Alloy Slices, it is characterized in that: described cylindricality plush copper is oval cylinder.
7, according to claim 1 or 2 or 3 or 4 described Rock Drill Steel Using For Hard Alloy Slices, it is characterized in that: described cylindricality plush copper is a prism.
CN 200620024158 2006-04-19 2006-04-19 Hard alloy plate for drill bit Expired - Fee Related CN2823529Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200620024158 CN2823529Y (en) 2006-04-19 2006-04-19 Hard alloy plate for drill bit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200620024158 CN2823529Y (en) 2006-04-19 2006-04-19 Hard alloy plate for drill bit

Publications (1)

Publication Number Publication Date
CN2823529Y true CN2823529Y (en) 2006-10-04

Family

ID=37032642

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200620024158 Expired - Fee Related CN2823529Y (en) 2006-04-19 2006-04-19 Hard alloy plate for drill bit

Country Status (1)

Country Link
CN (1) CN2823529Y (en)

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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.: 2008130000097

Denomination of utility model: With hard alloy bit slice

Granted publication date: 20061004

License type: Exclusive license

Record date: 20081119

Assignee: Changsha Zhongnan Kaida Powder Metallurgy Co.,Ltd.

Assignor: Duan Licheng

Contract fulfillment period: 2008.9.30 to 2015.9.30

Contract record no.: 2008430000030

Denomination of utility model: With hard alloy bit slice

Granted publication date: 20061004

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.: 2008130000097

Denomination of utility model: Hard alloy sheet for single-chisel bit

Granted publication date: 20061004

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

Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.9.30 TO 2015.9.30; CHANGE OF CONTRACT

Name of requester: CHANGSHA ZHONGNAN KAIDA POWDER METALLURGY CO., LTD

Effective date: 20081119

C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20061004

Termination date: 20140419