CN201078233Y - Combined hard metal mine coal cutter bit - Google Patents
Combined hard metal mine coal cutter bit Download PDFInfo
- Publication number
- CN201078233Y CN201078233Y CNU2007200171886U CN200720017188U CN201078233Y CN 201078233 Y CN201078233 Y CN 201078233Y CN U2007200171886 U CNU2007200171886 U CN U2007200171886U CN 200720017188 U CN200720017188 U CN 200720017188U CN 201078233 Y CN201078233 Y CN 201078233Y
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- China
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- steel body
- hard metal
- metal alloy
- base steel
- carbide alloy
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Abstract
A combined hard metal alloy coal mining chain pick belongs to a coal winning machinery technical field, which solves the technical problems of short service life of the coal chain pick. The utility model comprises a base steel body and a hard metal alloy head welded on an end of the base steel body and is characterized in that a hard metal alloy layer is baked on a surface of the base steel body and a plurality of embracing grooves is arranged on the surface of the base steel body, for filling the hard metal alloy, which is integrated with the hard metal alloy layer on the surface of the base steel body. A plurality of reinforcing bars is disposed on the surface of the base steel body along the axial direction and the reinforcing bars are made of the hard metal alloy. Diamond glomerocryst grains are embed on the surface of the hard metal alloy layer. The utility model has the advantages of good wear resistance and impact resistance and long service life.
Description
Technical field
The utility model relates to the coal-cutting machinery technical field, specifically is a kind of coal mining pick.
Background technology
At present the pick major part used of coal-winning machine is a clean steel body and at carbide alloy cylinder of welded top.The not wear-resisting tooth head of the coal mining pick ubiquity first half comes off at present, not shock resistance, and service time is short, and the maintain and replace number of times is frequent, and efficiency is low, the high phenomenon of labour intensity and mining costs.
The utility model content
The purpose of this utility model is to overcome above-mentioned shortcoming, and a kind of combined type carbide alloy coal mining pick of long service life is provided.
The technical solution of the utility model is: combined type carbide alloy coal mining pick comprises basic steel body and is welded on hard alloy head on the basic steel body termination that it is characterized in that: described basic steel body surface roast has hard alloy layer.
As further technical scheme of the present utility model: the surface of described basic steel body is provided with a plurality of armfuls and disturbs groove, is filled in to embrace the carbide alloy of disturbing in the groove and the hard alloy layer one of basic steel body surface.
Technical scheme further: the external surface upper edge of basic steel body is axially arranged with many reinforcing ribs, and reinforcing rib is a carbide alloy.
Further technical scheme as above technical scheme: described carbide alloy laminar surface is embedded with the dimond synneusis grain.
The beneficial effects of the utility model are:
1, it has high-intensity abrasion resistance and higher shock resistance torque capability, in use than 15～20 times of the long service life of original coal cutting pick, be applicable to the driving and the exploitation of various medium grounds, also be applicable to highway, railway, bridge, tunnel excavation, cut into a mountain and split mountain range etc.
2, it has improved coal work efficient.Because the prolongation in application life has significantly reduced the time of maintenance and replacing number of times, thereby has improved 5～10 times coal mining efficient.And working strength of workers and labour hour.
3, improve coal work efficient, reduced mining costs naturally.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment one,
Fig. 2 is the structural representation of the utility model embodiment two,
Fig. 3 is the structural representation of the utility model embodiment three,
Fig. 4 is the structural representation of the utility model embodiment four,
1 basic steel body among the figure, 2 hard alloy layers, 3 hard alloy heads, 4 dimond synneusis grains, 5 reinforcing ribs, 6 grooves.
The specific embodiment
As shown in Figure 1.
Embodiment one: this combined type carbide alloy coal mining pick comprises basic steel body 1 and is welded on hard alloy head 3 on the basic steel body termination that basic steel body 1 surface utilizes the powder metallurgical technique roast that hard alloy layer 2 is arranged.Because pick is when work, radial force is big, for preventing that the tooth handle from being coming off of basic steel body 1 bend fracture and hard alloy layer 2, basis steel body 1 adopts the 35CrMo structural alloy steel, and be provided with a plurality of grooves 6 on the surface of basic clean steel body 1 and promptly embrace and disturb groove, in the sintering process, cemented carbide part is filled in to embrace and disturbs in the groove.
As shown in Figure 2.
Embodiment two: be with embodiment one difference, be provided with four road carbide alloy reinforcing ribs 5 in coal cutting pick first half sintered hard alloy layer.Set up reinforcing rib except that solid firm wear-resisting torque resistant, four road reinforcing ribs have also played the effect of protection hard alloy head; When coal cutting pick is done manual work, meet rock on the other hand and easily rotate producing balanced forces; Moreover four the road reinforcing rib also can be used as the saturating rock stratum of the easy cutting drilling of alloy head.The number of reinforcing rib can be other numbers, is not limited to four roads.
As shown in Figure 3.
Embodiment three: this embodiment and embodiment one difference be, and be impregnated on the pick surface dimond synneusis grain 4 in the sintering pick, as protecting the footpath, strengthened the wear resistence of pick greatly, also protected the coal cutting pick matrix.
As shown in Figure 4.
Embodiment four: this embodiment is at the coal cutting pick surface of embodiment two impregnated with diamond glomerocryst grain 4.
Claims (4)
1. combined type carbide alloy coal mining pick comprises basic steel body and is welded on hard alloy head on the basic steel body termination that it is characterized in that: described basic steel body surface roast has hard alloy layer.
2. combined type carbide alloy coal mining pick according to claim 1, it is characterized in that: the surface of described basic steel body is provided with a plurality of armfuls and disturbs groove, is sintered in to embrace to disturb the interior carbide alloy of groove and the hard alloy layer one of basic steel body surface.
3. combined type carbide alloy coal mining pick according to claim 2, it is characterized in that: the external surface upper edge of basic steel body is axially arranged with many reinforcing ribs, and reinforcing rib is a carbide alloy.
4. according to claim 2 or 3 described combined type carbide alloy coal mining picks, it is characterized in that: described carbide alloy laminar surface is embedded with the dimond synneusis grain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200171886U CN201078233Y (en) | 2007-01-10 | 2007-01-10 | Combined hard metal mine coal cutter bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200171886U CN201078233Y (en) | 2007-01-10 | 2007-01-10 | Combined hard metal mine coal cutter bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201078233Y true CN201078233Y (en) | 2008-06-25 |
Family
ID=39570295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200171886U Expired - Fee Related CN201078233Y (en) | 2007-01-10 | 2007-01-10 | Combined hard metal mine coal cutter bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201078233Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101935745A (en) * | 2010-08-05 | 2011-01-05 | 山西鑫博瑞科技有限公司 | Heat treatment device and heat treatment method for coal cutting teeth |
| CN101787887B (en) * | 2010-01-12 | 2012-01-11 | 太原理工大学 | Pick having bimetal structure and preparation method thereof |
| WO2013004097A1 (en) * | 2011-07-06 | 2013-01-10 | 湖南飞瑞复合材料股份有限公司 | Diamond composite tooth |
| CN107429564A (en) * | 2015-01-26 | 2017-12-01 | 必泰克有限两合公司 | Chisel, especially round bar chisel |
| CN110449593A (en) * | 2019-08-13 | 2019-11-15 | 西安理工大学 | A kind of steel bonded carbide head and preparation method thereof can be used for making coal cutting pick |
| CN113383127A (en) * | 2018-10-01 | 2021-09-10 | 斯伦贝谢技术有限公司 | Rotary tool with thermally stable diamond |
| US11585216B2 (en) | 2021-04-26 | 2023-02-21 | Kennametal Inc. | Wear-resistant armored cutting tool |
-
2007
- 2007-01-10 CN CNU2007200171886U patent/CN201078233Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101787887B (en) * | 2010-01-12 | 2012-01-11 | 太原理工大学 | Pick having bimetal structure and preparation method thereof |
| CN101935745A (en) * | 2010-08-05 | 2011-01-05 | 山西鑫博瑞科技有限公司 | Heat treatment device and heat treatment method for coal cutting teeth |
| WO2013004097A1 (en) * | 2011-07-06 | 2013-01-10 | 湖南飞瑞复合材料股份有限公司 | Diamond composite tooth |
| CN107429564A (en) * | 2015-01-26 | 2017-12-01 | 必泰克有限两合公司 | Chisel, especially round bar chisel |
| CN107429564B (en) * | 2015-01-26 | 2019-03-22 | 必泰克有限两合公司 | Chisel, especially round bar chisel |
| CN113383127A (en) * | 2018-10-01 | 2021-09-10 | 斯伦贝谢技术有限公司 | Rotary tool with thermally stable diamond |
| US20210388723A1 (en) * | 2018-10-01 | 2021-12-16 | Schlumberger Technology Corporation | Rotary tool with thermally stable diamond |
| US11952896B2 (en) | 2018-10-01 | 2024-04-09 | Schlumberger Technology Corporation | Rotary tool with thermally stable diamond |
| CN110449593A (en) * | 2019-08-13 | 2019-11-15 | 西安理工大学 | A kind of steel bonded carbide head and preparation method thereof can be used for making coal cutting pick |
| CN110449593B (en) * | 2019-08-13 | 2021-10-22 | 西安理工大学 | Steel-bonded hard alloy head for manufacturing coal cutting pick and preparation method thereof |
| US11585216B2 (en) | 2021-04-26 | 2023-02-21 | Kennametal Inc. | Wear-resistant armored cutting tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080625 Termination date: 20140110 |