CN2637730Y - Composite layer coated coal cutter teeth for coal mine coal cutter - Google Patents
Composite layer coated coal cutter teeth for coal mine coal cutter Download PDFInfo
- Publication number
- CN2637730Y CN2637730Y CN 200320107072 CN200320107072U CN2637730Y CN 2637730 Y CN2637730 Y CN 2637730Y CN 200320107072 CN200320107072 CN 200320107072 CN 200320107072 U CN200320107072 U CN 200320107072U CN 2637730 Y CN2637730 Y CN 2637730Y
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- coating
- coal
- utility
- model
- bit
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- 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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Abstract
The utility model relates to a drilling bit tool, especially, a coal cutting bit with composite coating used for the coal cutter. The technic proposal of the utility model is that the utility model consists of a coal cutting bit body and a bit head, a layer of superhard coating is compounded on the outer layer of the bit head through a chemical vapor deposition process, the superhard coating can be diamond thin film coating, aluminium oxide coating, boron nitride coating and so on, the thickness of the coating is 0.01-0.20 mm. Owing to the superhard coating compounded on the bit head, the rigidity and the abrasive resistance of the utility model approximates to the intensity of the nature diamond, while the material cost is considerably less than the natural diamond and the utility model can meet the long term use of the coal cutter under various geological conditions.
Description
One, technical field: the utility model relates to a kind of brill toothed tool, particularly a kind of coal mining machine composite coating coal cutting teeth.
Two, background technology: the coal cutting teeth of coal mining machine use at present mainly comprises matrix and tooth head two parts composition, its tooth head mostly is Hardmetal materials, the hardness of this tooth head and rub proofness are not high, cause the life cycle of coal cutting teeth short, are difficult to satisfy instructions for use.
Three, summary of the invention: the purpose of this utility model is exactly the above-mentioned defective that exists at prior art, and a kind of coal mining machine composite coating coal cutting teeth is provided.
Its technical scheme is: comprise coal tooth matrix and tooth head, at the skin compound one deck superhard coating of chemical vapour deposition technique of tooth head, as diamond film coating layer, alchlor coating, boron nitride coating etc., the thickness of coating is the 0.01-0.20 millimeter.
Of the present utility model owing to be compounded with the composite coating of superhard material in tooth head position, its hardness and scuff resistance are near the intensity of natural diamond, and material cost is significantly less than natural diamond, can satisfy the long-term use of coal mining machine under various geological conditionss.
Four, description of drawings:
Accompanying drawing is the structure chart of a kind of embodiment of the present utility model.
Five, the specific embodiment:
With reference to accompanying drawing, the tooth head 2 that coal cutting teeth is made by matrix 1 and alloy material is formed, at the skin compound one deck diamond film coating layer 3 of chemical vapour deposition technique (perhaps alchlor coating, boron nitride coating etc.) of tooth head 2.Utilize the ultrahigh hardness of composite superhard coating, improve the application life of coal cutting teeth.
Claims (2)
1, a kind of coal mining machine composite coating coal cutting teeth comprises coal tooth matrix and tooth head, it is characterized in that: be coated with at the skin of tooth head and be coated with one deck composite coating.
2, coal mining machine composite coating coal cutting teeth according to claim 1, it is characterized in that: the thickness of coating is the 0.01-0.20 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320107072 CN2637730Y (en) | 2003-11-14 | 2003-11-14 | Composite layer coated coal cutter teeth for coal mine coal cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320107072 CN2637730Y (en) | 2003-11-14 | 2003-11-14 | Composite layer coated coal cutter teeth for coal mine coal cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2637730Y true CN2637730Y (en) | 2004-09-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320107072 Expired - Fee Related CN2637730Y (en) | 2003-11-14 | 2003-11-14 | Composite layer coated coal cutter teeth for coal mine coal cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2637730Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101812985A (en) * | 2010-04-23 | 2010-08-25 | 宋建华 | Cutting pick of coal mining machine |
| CN102182456A (en) * | 2011-04-22 | 2011-09-14 | 河海大学 | Wear-resistant sparkless shearer pick composite coating and preparation method thereof |
-
2003
- 2003-11-14 CN CN 200320107072 patent/CN2637730Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101812985A (en) * | 2010-04-23 | 2010-08-25 | 宋建华 | Cutting pick of coal mining machine |
| CN102182456A (en) * | 2011-04-22 | 2011-09-14 | 河海大学 | Wear-resistant sparkless shearer pick composite coating and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |