CN204511441U - A kind of anti-drop head wear resistant cutting pick - Google Patents
A kind of anti-drop head wear resistant cutting pick Download PDFInfo
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- CN204511441U CN204511441U CN201420840912.5U CN201420840912U CN204511441U CN 204511441 U CN204511441 U CN 204511441U CN 201420840912 U CN201420840912 U CN 201420840912U CN 204511441 U CN204511441 U CN 204511441U
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- carbide bit
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Abstract
A kind of anti-drop head wear resistant cutting pick, comprise pick body and carbide bit, the upper end of pick body has the cavity for installing carbide bit, it is characterized in that described cavity inside has projection, the inside, lower end of described carbide bit has the cavity corresponding with described projection, the described mode projecting through welding is fixed in described cavity, described carbide bit is installed in described cavity by the mode of welding, has diamond intensive aspect in described carbide bit.A kind of anti-drop head wear-resisting head pick that the utility model provides, effectively can solve the technical problem that carbide bit comes off and carbide bit abrasion resistance is not high.Not only improve the digging efficiency of pick but also extend pick application life.
Description
Technical field
The utility model relates to mining machinery field, a kind of anti-drop head wear resistant cutting pick particularly used on extractive equipment.
Background technology
Pick used on extractive equipment, be made up of alloy steel denticle and carbide bit and form, carbide bit is fixed in the cavity of alloy steel denticle front end by soldering processes, the hardness of alloy steel denticle is less than the hardness of carbide bit, the wearing and tearing of alloy steel denticle are faster than the wearing and tearing of carbide bit, in operation, alloy steel denticle is gradually worn down, matrix for the cavity of fixing carbide bit is more and more thinner, when the larger stress of blanking lotus is concentrated, carbide bit will loosen and cause pick to be scrapped until come off, carbide bit is when the rock stratum such as granite and hard limestone that impact hardness is higher, although the hardness of carbide alloy is higher but wearing and tearing are still very fast, carbide bit is polished causes scrapping of pick.
Utility model content
For above-mentioned situation, for overcoming prior art defect, the purpose of this utility model is to provide a kind of anti-drop head wear-resisting head pick, effectively can solve the technical problem that carbide bit comes off and carbide bit abrasion resistance is not high.
For solving the problems of the technologies described above the technical solution adopted in the utility model be: a kind of anti-drop head wear resistant cutting pick, comprise pick body and carbide bit, the upper end of pick body has the cavity for installing carbide bit, it is characterized in that described cavity inside has projection, the inside, lower end of described carbide bit has the cavity corresponding with described projection, the described mode projecting through welding is fixed in described cavity, described carbide bit is installed in described cavity by the mode of welding, there is in described carbide bit diamond intensive aspect.
Further, the top of described carbide bit has blind hole along the inside of described carbide bit, described diamond intensive aspect is filled in described blind hole and described blind hole is filled up, and the axis of described blind hole overlaps with the axis of described carbide bit.
Further described projection is small hill shape, and the described mode projecting through silver soldering welding is fixed in described cavity, and described carbide bit is installed in described cavity by the mode that silver soldering is welded.
Further described projection is preformed in described pick body is produced, and described cavity is that the technique by laser boring on described carbide bit obtains.
Further, described diamond intensive aspect is glomerocryst diamond cylinder, and described diamond intensive aspect is filled in described blind hole by the method that silver soldering is welded.
The utility model arranges projection in the cavity of pick body, in inside, the lower end of carbide bit, the cavity corresponding with projection is set, carbide bit is welded in cavity by the mode of welding, the described mode projecting through welding is fixed in described cavity, the larger and projection of the contact area that carbide bit and pick body are welded and fixed is welded on the inside of carbide bit, during operation, the matrix surface of cavity is gradually worn down, but it is protruding unaffected with being welded and fixed of cavity, carbide bit still can be fixed on firmly on pick body and there will not be loosening phenomenon, can prevent the carbide bit when the larger stress of load is concentrated from coming off from pick body, extend the application life of pick, and diamond intensive aspect is set in carbide bit inside, add the hardness of carbide bit, improve the anti-wear performance of carbide bit, during the rock stratum such as the granite that impact hardness is higher and hard limestone, the damage mill rate of carbide bit is greatly diminished, not only improve the digging efficiency of pick but also extend pick application life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model
Fig. 2 is the structural representation of pick body
Fig. 3 is the structural representation of carbide bit
Fig. 4 is the structural representation of carbide bit when not filling diamond intensive aspect in blind hole.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated.
As shown in Figures 1 to 4, a kind of anti-drop head wear resistant cutting pick, comprise pick body 1 and carbide bit 2, the upper end of pick body 1 has the cavity 1.1 for installing carbide bit, described cavity 1.1 inside has protruding 1.2, the inside, lower end of described carbide bit 2 has the cavity 2.1 corresponding with described projection 1.2, described projection 1.2 is in small hill shape, described projection 1.2 is fixed in described cavity 2.1 by the mode that silver soldering is welded, and described carbide bit 2 is installed in described cavity 1.1 by the mode that silver soldering is welded.The top of described carbide bit 2 has blind hole 2.2 along the inside of described carbide bit 2, described diamond intensive aspect 3 is filled in described blind hole 2.2 and described blind hole 2.2 is filled up, and the axis of described blind hole 2.2 overlaps with the axis of described carbide bit 2.Described projection 1.2 is preformed in described pick body 1 is produced, and described cavity 2.1 is obtained by the technique of laser boring on described carbide bit 2.Described diamond intensive aspect 3 is glomerocryst diamond cylinder, and described diamond intensive aspect 3 is filled in described blind hole 2.2 by the method that silver soldering is welded.
Wherein, when described projection 1.2 is welded by silver soldering with described cavity 2.1, external screw thread can be offered at the external surface of protruding 1.2, the inwall of cavity 1.2 arranges the internal thread matched with the external screw thread of protruding 1.2, the silver solder of fusing is filled the external surface of inwall at cavity 2.1 and protruding 1.2, again cavity 2.1 is docked with protruding 1.2, thread pitch between internal thread on the external screw thread of protruding 1.2 and cavity 2.1 inwall is filled by silver solder, and after silver solder cooling, namely protruding 1.2 be fixed among cavity 2.1.
The utility model arranges protruding 1.2 in the cavity 1.1 of pick body 1, in inside, the lower end of carbide bit 2, the cavity 2.1 corresponding with projection 1.2 is set, carbide bit 2 is welded in cavity 1.1 by the mode of welding, described projection 1.2 is fixed in described cavity 2.1 by the mode of welding, larger and protruding 1.2 inside being welded on carbide bit 2 of the contact area that carbide bit 2 and pick body 1 are welded and fixed, during operation, the matrix surface of cavity 1.1 is gradually worn down, but protruding 1.2 is unaffected with being welded and fixed of cavity 2.1, carbide bit 2 still can be fixed on firmly on pick body 1 and there will not be loosening phenomenon, can prevent the carbide bit 2 when the larger stress of load is concentrated from coming off from pick body 1, extend the application life of pick, and diamond intensive aspect 3 is set in carbide bit 2 inside, add the hardness of carbide bit 2, improve the anti-wear performance of carbide bit 2, during the rock stratum such as the granite that impact hardness is higher and hard limestone, the damage mill rate of carbide bit 2 is greatly diminished, not only improve the digging efficiency of pick but also extend pick application life.
Below by reference to the accompanying drawings complete description is carried out to the technical scheme of the utility model embodiment, it should be noted that described embodiment is only the utility model part embodiment.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belongs to the scope of the utility model protection.
Claims (5)
1. an anti-drop head wear resistant cutting pick, comprise pick body (1) and carbide bit (2), the upper end of pick body (1) has the cavity (1.1) for installing carbide bit (2), it is characterized in that described cavity (1.1) inside has projection (1.2), the inside, lower end of described carbide bit (2) has the cavity (2.1) corresponding with described projection (1.2), described projection (1.2) is fixed in described cavity (2.1) by the mode of welding, described carbide bit (2) is installed in described cavity (1.1) by the mode of welding, in described carbide bit (2), there is diamond intensive aspect (3).
2. anti-drop head wear resistant cutting pick according to claim 1, it is characterized in that the top of described carbide bit (2) has blind hole (2.2) along the inside of described carbide bit (2), described diamond intensive aspect (3) is filled in described blind hole (2.2) and described blind hole (2.2) is filled up, and the axis of described blind hole (2.2) overlaps with the axis of described carbide bit (2).
3. anti-drop head wear resistant cutting pick according to claim 2, it is characterized in that described projection (1.2) is in small hill shape, described projection (1.2) is fixed in described cavity (2.1) by the mode that silver soldering is welded, and described carbide bit (2) is installed in described cavity (1.1) by the mode that silver soldering is welded.
4. anti-drop head wear resistant cutting pick according to claim 3, it is characterized in that described projection (1.2) is preformed in described pick body (1) is produced, described cavity (2.1) is obtained by the technique of laser boring on described carbide bit (2).
5. anti-drop head wear resistant cutting pick according to claim 4, it is characterized in that described diamond intensive aspect (3) is for glomerocryst diamond cylinder, described diamond intensive aspect (3) is filled in described blind hole (2.2) by the method that silver soldering is welded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420840912.5U CN204511441U (en) | 2014-12-27 | 2014-12-27 | A kind of anti-drop head wear resistant cutting pick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420840912.5U CN204511441U (en) | 2014-12-27 | 2014-12-27 | A kind of anti-drop head wear resistant cutting pick |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204511441U true CN204511441U (en) | 2015-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420840912.5U Active CN204511441U (en) | 2014-12-27 | 2014-12-27 | A kind of anti-drop head wear resistant cutting pick |
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| CN (1) | CN204511441U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108699904A (en) * | 2016-02-19 | 2018-10-23 | 安百拓凿岩钎具有限公司 | Rotation punching or formed asphalt, concrete or similar material during use be provided with lengthwise extending groove for coal mining, rock mechanical processing cutting tool |
-
2014
- 2014-12-27 CN CN201420840912.5U patent/CN204511441U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108699904A (en) * | 2016-02-19 | 2018-10-23 | 安百拓凿岩钎具有限公司 | Rotation punching or formed asphalt, concrete or similar material during use be provided with lengthwise extending groove for coal mining, rock mechanical processing cutting tool |
| US10711529B2 (en) | 2016-02-19 | 2020-07-14 | Epiroc Drilling Tools Aktiebolag | Cutting tool |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |