CN1217417A - Cutting pick for coal-getter and technology thereof - Google Patents
Cutting pick for coal-getter and technology thereof Download PDFInfo
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- CN1217417A CN1217417A CN 98110589 CN98110589A CN1217417A CN 1217417 A CN1217417 A CN 1217417A CN 98110589 CN98110589 CN 98110589 CN 98110589 A CN98110589 A CN 98110589A CN 1217417 A CN1217417 A CN 1217417A
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- pick
- coal
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- winning machine
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Abstract
The present invention relates to a bit for coal cutter and its production process. Said invented bit is characterized by that said bit body surface and the internal peripheric surface of the bit top hole possess a layer of high-hardness wear-resisting layer respectively, so that said invention provides three production processes of carbonization, carbonitriding or spraying high-hardness wear-resisting material, and can raise the strength, hardness and wear resistance of the bit, and its service life is 2-3 times that of general bit body.
Description
The present invention relates to a kind of coal mining machine device, is a kind of coal-winning machine pick specifically.The invention still further relates to the production technology of this coal-winning machine with pick.
Coal-winning machine is the requisite facility in a kind of colliery, carries out coal petrography by the cutting that is packed in the pick on the coal-winning machine and excavates.Present pick structure generally all is made up of tooth head and pick body; the soldering of tooth head is in the end of pick body; because pick will bear high compressive stress, shearing force and impact load; the pick body occurring through regular meeting is worn; the tooth head process is gone out and by the phenomenon that knocked, make tooth head improper scrapping under the situation of not worn and torn fully.Increase mining costs and had influence on coal mining efficient.
As the patent No. is 93237117 utility model, pick, and the authorization notification number is CN21617, and its structure is to be connected by tool rest with cutter hub at the end of cutter hub cutter head, and cutter head is embedded in tool rest and the cutter hub.Can improve weld strength, the protection cutter head does not burst apart.But and the end solves the phenomenon that the pick body easily is worn.
The object of the present invention is to provide a kind of coal-winning machine pick that improves pick body abrasion resistance and intensity, can realize the normal abandonment of tooth head; The present invention also is provided for producing the technology of this coal-winning machine with pick.
The present invention is achieved in that
The coal-winning machine pick mainly is made up of pick body and hard-metal insert head, and the pick body is provided with gear head hole, it is characterized in that: also be provided with one deck wearing layer around in the surface of described pick body and the gear head hole.
Around in pick surface and gear head hole, form one deck wearing layer, the invention provides three kinds of production technologies:
A kind of is earlier pick body integral body to be carried out Carburization Treatment, again with the soldering of tooth head in gear head hole;
Another kind is earlier pick body integral body to be carried out carbo-nitriding to handle, again with the soldering of tooth head in gear head hole;
Another is earlier at pick surface spraying plating one deck high hardness wear-resisting material, again with the soldering of tooth head in gear head hole.
The present invention is owing to adopt technologies such as carburizing, carbo-nitriding or spraying plating high hardness wear-resisting material, form one deck wearing layer around can be in the surface of pick body and gear head hole, intensity, hardness and the anti-wear performance of pick body have been increased, and be difficult for embrittlement, overcome the wearing and tearing too early of pick body and easily knock the phenomenon of tooth head.Simultaneously, the anti-layer of high rigidity mill has also improved the mechanical strength and the fatigue resistance of pick body to the compressive stress of pick body; Have and install between tooth head, the pick body firmly, wear-resisting, easily manufactured effect has realized the normal abandonment of tooth head; The special hard coal stone of digging, ten thousand tons of consumption of coal 60-70 prop up, and be 1-2 times of general pick body application life.
Accompanying drawing is a kind of structural representation of the present invention;
Below in conjunction with accompanying drawing embodiments of the invention are elaborated.
In the accompanying drawing, 1 is the pick body, and 2 is the tooth head, and 3 is wearing layer, and 4 is gear head hole.
As showing, coal-winning machine of the present invention mainly is made up of pick body 1 and tooth head 2 with pick as accompanying drawing, and pick body 1 is provided with gear head hole 4, evenly is provided with one deck wearing layer 3 around in the surface of pick body 1 and gear head hole 4.
Technology of the present invention is: earlier pick body 1 integral body is carried out Carburization Treatment, again with 2 solderings of tooth head in gear head hole 4; Form layer of even high-carbon wearing layer 3 around making in pick body 1 surface and the gear head hole 4, thickness is about 1mm, can increase intensity, hardness and the abrasion resistance of pick body 1.
Another kind of technology of the present invention is: earlier pick body 1 integral body is carried out carbo-nitriding and handles, again with 2 solderings of tooth head in gear head hole 4, make to form one deck high-carbon nitrogen wearing layers 3 in pick body 1 surface and the gear head hole 4.
Another technology of the present invention is: earlier at pick body 1 surperficial spraying plating one deck high hardness wear-resisting material, again with 2 solderings of tooth head in gear head hole 4.Form one deck high hardness wear-resisting layers 3 around making in the surface of pick body 1 and the gear head hole 4.This high hardness wear-resisting material is high-carbon alloy steel, high hardness wear-resisting alloy etc.
Claims (4)
1, coal-winning machine pick mainly is made up of pick body (1) and hard-metal insert head (2), and pick body (1) is provided with gear head hole (4), it is characterized in that: also be provided with one deck wearing layer (3) around in the surface of described pick body (1) and the gear head hole (4).
2, the described coal-winning machine of a kind of production claim 1 is characterized in that with the technology of pick: earlier pick body (1) integral body is carried out Carburization Treatment, again with tooth head (2) soldering in gear head hole (4).
3, the described coal-winning machine of another kind of production claim 1 is characterized in that with the technology of pick: earlier pick body (1) integral body is carried out carbo-nitriding and handles, again with tooth head (2) soldering in gear head hole (4).
4, the described coal-winning machine of another production claim 1 is characterized in that with the technology of pick: earlier at the surperficial spraying plating one deck of pick body (1) high hardness wear-resisting material, again with tooth head (2) soldering in gear head hole (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98110589 CN1217417A (en) | 1998-11-27 | 1998-11-27 | Cutting pick for coal-getter and technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98110589 CN1217417A (en) | 1998-11-27 | 1998-11-27 | Cutting pick for coal-getter and technology thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1217417A true CN1217417A (en) | 1999-05-26 |
Family
ID=5220622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98110589 Pending CN1217417A (en) | 1998-11-27 | 1998-11-27 | Cutting pick for coal-getter and technology thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1217417A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101920442A (en) * | 2010-06-20 | 2010-12-22 | 大丰市中德精锻件有限公司 | Process for coldly extruding, reducing and pressing bit body and hard alloy head |
| CN1701161B (en) * | 2003-08-15 | 2012-11-14 | 山特维克知识产权股份有限公司 | Rotary cutting bit with material-deflecting ledge |
| CN103909190A (en) * | 2014-03-24 | 2014-07-09 | 大丰市中德精锻件有限公司 | Cold extrusion forming process of ribbed pick forgings |
| CN105149713A (en) * | 2015-09-15 | 2015-12-16 | 安徽澳德矿山机械设备科技股份有限公司 | Welding process of cutting pick head and cutting pick base of coal cutter |
-
1998
- 1998-11-27 CN CN 98110589 patent/CN1217417A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1701161B (en) * | 2003-08-15 | 2012-11-14 | 山特维克知识产权股份有限公司 | Rotary cutting bit with material-deflecting ledge |
| CN101920442A (en) * | 2010-06-20 | 2010-12-22 | 大丰市中德精锻件有限公司 | Process for coldly extruding, reducing and pressing bit body and hard alloy head |
| CN101920442B (en) * | 2010-06-20 | 2011-12-07 | 大丰市中德精锻件有限公司 | Process for coldly extruding, reducing and pressing bit body and hard alloy head |
| CN103909190A (en) * | 2014-03-24 | 2014-07-09 | 大丰市中德精锻件有限公司 | Cold extrusion forming process of ribbed pick forgings |
| CN105149713A (en) * | 2015-09-15 | 2015-12-16 | 安徽澳德矿山机械设备科技股份有限公司 | Welding process of cutting pick head and cutting pick base of coal cutter |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |