CN101812985A - Cutting pick of coal mining machine - Google Patents
Cutting pick of coal mining machine Download PDFInfo
- Publication number
- CN101812985A CN101812985A CN201010153646A CN201010153646A CN101812985A CN 101812985 A CN101812985 A CN 101812985A CN 201010153646 A CN201010153646 A CN 201010153646A CN 201010153646 A CN201010153646 A CN 201010153646A CN 101812985 A CN101812985 A CN 101812985A
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- China
- Prior art keywords
- winning machine
- cutting bit
- machine cutting
- diamond
- coal winning
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Abstract
The invention provides a cutting pick of a coal mining machine, comprising a steel base and an alloy tool bit, wherein the alloy tool bit is arranged at one end of the steel base; and diamond coating is coated on the surfaces of the steel base and the alloy tool bit and contains diamonds and abrasion-resistant alloys, wherein the volume concentration of the diamonds is 10-90 percent, and the granularity of the diamonds is between 1 micrometer and 2000 micrometers. The cutting pick of the coal mining machine has good abrasion-resistant property and longer service life.
Description
[technical field]
The present invention relates to a kind of coal winning machine cutting bit, relate in particular to the coal winning machine cutting bit that a kind of appearance is coated with the adamantine coating of high concentration.
[background technology]
At present, along with the develop rapidly of process of industrialization, all kinds of mines have all been realized mechanization or semimechanized digging operation substantially, but follow and what give birth to is corresponding facility and all kinds of instrument and the complementing one another of big suitability for industrialized production.And the pick that topmost digging instrument wherein is exactly the comprehensive mechanical coal mining machine, pick is the key component on the coal-winning machine, because its condition of work is abominable, requirement has high abrasion resistance, intensity and good toughness, and its abrasion resistance and corresponding life-span directly influence production efficiency and cost of production, mainly there is the problem of following two aspects in pick commonly used at present: the first, and the abrasion resistance of the carbide alloy on pick top is not enough; The second, the steel body of pick weares and teares too early, causes carbide alloy to come off too early.
At this 2 point, be necessary to provide a kind of new coal winning machine cutting bit, to overcome the problems referred to above.
[summary of the invention]
Technical problem solved by the invention is to provide a kind of coal winning machine cutting bit, and it can effectively promote abrasion resistance and increase the service life.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: a kind of coal winning machine cutting bit, it comprises steel matrix and is located at the alloy cutter head of described steel matrix one end, the surface of described steel matrix and alloy cutter head scribbles diamond coatings, this diamond coatings contains diamond and antifriction alloy, wherein, adamantine volumetric concentration is 10-90%, and adamantine granularity is between the 1-2000 micron.
As the further improvement of the technical program, the hardness HRC of described antifriction alloy between 40-85, the high temperature alloy that contains cobalt-based, Ni-based, chromium base, iron-based in the described antifriction alloy and form by them.
As the further improvement of the technical program, described diamond coatings can be an individual layer, also can be multilayer, and the Thickness Design of coating becomes between the 0.2-5mm.
As the further improvement of the technical program, the diamond in the described diamond coatings and a reactive alloys, organic bond are made paste and directly are coated in the surface of described coal winning machine cutting bit, carry out activated sintering then.
Compared to prior art, the beneficial effect of coal winning machine cutting bit of the present invention is: have good abrasion resistance and longer application life.
[description of drawings]
Fig. 1 is the schematic diagram when being coated with diamond coatings on the steel matrix of coal winning machine cutting bit of the present invention.
Fig. 2 is the generalized section of coal winning machine cutting bit of the present invention shown in Figure 1.
The schematic diagram of Fig. 3 when being coated with diamond coatings on the steel matrix of coal winning machine cutting bit of the present invention and the carbide bit.
Fig. 4 is the generalized section of coal winning machine cutting bit of the present invention shown in Figure 3.
[specific embodiment]
See also Fig. 1 to shown in Figure 4, the invention provides the pick 10 that a kind of coal-winning machine is used, it is mainly used in coal mining, this pick comprises steel matrix 11, install in the carbide bit 12 of described steel matrix 11 1 ends and be coated on the diamond coatings 13 on described steel matrix 11 and carbide bit 12 surfaces, wherein, because the carbide bit of described coating possesses higher hardness, therefore, its main using is excavation and the exploitation work that is used for the colliery.
Described diamond coatings comprise diamond and antifriction alloy, wherein, adamantine volumetric concentration is 10-90%, adamantine granularity is between the 1-2000 micron; The hardness HRC of described antifriction alloy is between 40-85.The high temperature alloy that contains cobalt-based, Ni-based, chromium base, iron-based in the described antifriction alloy and form by them.Described diamond coatings can be an individual layer, also can be multilayer, and the thickness of coating can be designed between the 0.2-5mm according to applying working condition, and in addition, described coating also can be designed to the coating of gradient according to the variation of diamond concentration.
At described diamond coatings, the present invention utilizes following coating equipment that coal winning machine cutting bit is applied: vacuum furnace, protective atmosphere heating furnace, continuous track transmission heating furnace.
Diamond coatings of the present invention need adopt following coating processes: 1. diamond, reactive alloys, organic bond are made the surface that paste directly is coated in pick, carry out activated sintering then; 2. the method with cold spraying is sprayed on the pick surface with diamond and reactive alloys, carries out activated sintering then; 3. directly weld with the diamond welding rod, carry out activated sintering then on the pick surface.
Utilize vacuum heating apparatus or gas atmosphere firing equipment will contain the adamantine coating of high concentration and be coated in the steel matrix of coal winning machine cutting bit or the surface of carbide bit; to reach the abrasion resistance that increases steel matrix and carbide bit, prolong the application life of pick.
Beneficial effect of the present invention: formed between coated with CVD (chemical vapor deposition) diamond layer and described steel matrix and the carbide bit metallic bond and, guaranteed coat under worst operating mode, with not delamination of steel matrix; And not carbonization of the diamond under these process conditions self, diamond itself does not reduce intensity after the coating, does not reduce intensity, has guaranteed the superelevation anti-wear performance of diamond coatings; At life-span that has the pick that is applied by diamond coatings accordingly of all kinds of different stratum and coal seam conditions invention be uncoated pick life-span 2-5 doubly.
The above only is a most preferred embodiment of the present invention, is not the present invention is done any pro forma restriction, all belongs within the scope of technical solution of the present invention.Any those of ordinary skill in the art are not breaking away under the technical solution of the present invention scope situation, utilize the method content of above-mentioned announcement that technical solution of the present invention is made many possible changes and modification, all belong to the scope of claims protection.
Claims (4)
1. coal winning machine cutting bit, it comprises steel matrix and is located at the alloy cutter head of described steel matrix one end, it is characterized in that: the surface of described steel matrix and alloy cutter head scribbles diamond coatings, this diamond coatings contains diamond and antifriction alloy, wherein, adamantine volumetric concentration is 10-90%, and adamantine granularity is between the 1-2000 micron.
2. coal winning machine cutting bit according to claim 1 is characterized in that: the hardness HRC of described antifriction alloy between 40-85, the high temperature alloy that contains cobalt-based, Ni-based, chromium base, iron-based in the described antifriction alloy and form by them.
3. coal winning machine cutting bit according to claim 1 is characterized in that: described diamond coatings can be an individual layer, also can be multilayer, and the Thickness Design of coating becomes between the 0.2-5mm.
4. according to any described coal winning machine cutting bit in the claim 1 to 3, it is characterized in that: the diamond in the described diamond coatings and a reactive alloys, organic bond are made paste and directly are coated in the surface of described coal winning machine cutting bit, carry out activated sintering then.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010153646A CN101812985A (en) | 2010-04-23 | 2010-04-23 | Cutting pick of coal mining machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010153646A CN101812985A (en) | 2010-04-23 | 2010-04-23 | Cutting pick of coal mining machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101812985A true CN101812985A (en) | 2010-08-25 |
Family
ID=42620335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010153646A Pending CN101812985A (en) | 2010-04-23 | 2010-04-23 | Cutting pick of coal mining machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101812985A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975026A (en) * | 2010-10-18 | 2011-02-16 | 韩桂云 | PDC (Polycrystalline Diamond Compact) drill |
| CN106457400A (en) * | 2014-04-30 | 2017-02-22 | 山特维克知识产权股份有限公司 | A wear resistant component and a device for mechanical decomposition of material provided with such a component |
| CN106869928A (en) * | 2016-12-30 | 2017-06-20 | 王华彬 | Iron base metal ceramics composite cutter bit |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2637730Y (en) * | 2003-11-14 | 2004-09-01 | 王光 | Composite layer coated coal cutter teeth for coal mine coal cutter |
| CN101189408A (en) * | 2005-05-31 | 2008-05-28 | 山特维克知识产权股份有限公司 | Method for manufacturing a cutting pick |
| CN201423674Y (en) * | 2009-06-25 | 2010-03-17 | 宋建华 | Diamond or adamantine hard film cutting tool |
-
2010
- 2010-04-23 CN CN201010153646A patent/CN101812985A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2637730Y (en) * | 2003-11-14 | 2004-09-01 | 王光 | Composite layer coated coal cutter teeth for coal mine coal cutter |
| CN101189408A (en) * | 2005-05-31 | 2008-05-28 | 山特维克知识产权股份有限公司 | Method for manufacturing a cutting pick |
| US7648314B2 (en) * | 2005-05-31 | 2010-01-19 | Sandvik Intellectual Property Ab | Method for manufacturing a cutting pick and the resulting pick |
| CN201423674Y (en) * | 2009-06-25 | 2010-03-17 | 宋建华 | Diamond or adamantine hard film cutting tool |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975026A (en) * | 2010-10-18 | 2011-02-16 | 韩桂云 | PDC (Polycrystalline Diamond Compact) drill |
| CN106457400A (en) * | 2014-04-30 | 2017-02-22 | 山特维克知识产权股份有限公司 | A wear resistant component and a device for mechanical decomposition of material provided with such a component |
| CN106869928A (en) * | 2016-12-30 | 2017-06-20 | 王华彬 | Iron base metal ceramics composite cutter bit |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100825 |