CN204646118U - A kind of drill bit of expiloration of coal mines - Google Patents
A kind of drill bit of expiloration of coal mines Download PDFInfo
- Publication number
- CN204646118U CN204646118U CN201520367436.4U CN201520367436U CN204646118U CN 204646118 U CN204646118 U CN 204646118U CN 201520367436 U CN201520367436 U CN 201520367436U CN 204646118 U CN204646118 U CN 204646118U
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- China
- Prior art keywords
- heat pipe
- supporter
- diamond compact
- bit matrix
- drill bit
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Abstract
The utility model discloses a kind of drill bit of expiloration of coal mines, comprise bit matrix and diamond compact, described diamond compact is welded on bit matrix, it is characterized in that the working end of bit matrix has along the circumferential direction been wholely set some supporters, supporter is provided with groove, be provided with described diamond compact in groove, described diamond compact is higher than supporter top; There is in described bit matrix some first heat pipes, described first heat pipe quantity and position identical with supporter and supporter corresponding; Described supporter is stretched at described first heat pipe top; First heat pipe is evaporator section near one end of working end, the other end is condensation segment; The tube wall of the first heat pipe is provided with liquid-sucking core, in the first heat pipe, is injected with working medium and by end cap seal.This bit life length take diamond compact as main cutting tooth, and the anti-wear performance of composite sheet is more than 20-40 times of carbide alloy, from good heat dissipation effect.
Description
Technical field
The utility model relates to a kind of expiloration of coal mines equipment, especially a kind of drill bit of expiloration of coal mines.
Background technology
In process of coal mining, first need to carry out geological prospecting, the drill bit that geological prospecting adopts is generally PDC drill bit, PDC and diamond compact PDC (Polycrystalline Diamond Compact), its top is polycrystalline diamond thin layer, bottom is Talide substrate, and diamond compact (PDC) instrument in sector applications such as geological prospecting, oil drilling, machinings widely.The drill bit radiating effect of existing expiloration of coal mines is undesirable, affects its application life, therefore needs to improve to improve it from heat dispersion.
Summary of the invention
The purpose of this utility model is deficiency in order to solve above-mentioned technology and the drill bit of the expiloration of coal mines of a kind of good heat dissipation effect designed.
The drill bit of a kind of expiloration of coal mines designed by the utility model, comprise bit matrix and diamond compact, described diamond compact is welded on bit matrix, it is characterized in that the working end of bit matrix has along the circumferential direction been wholely set some supporters, supporter is provided with groove, be provided with described diamond compact in groove, described diamond compact is higher than supporter top; There is in described bit matrix some first heat pipes, described first heat pipe quantity and position identical with supporter and supporter corresponding; Described supporter is stretched at described first heat pipe top; First heat pipe is evaporator section near one end of working end, the other end is condensation segment; The tube wall of the first heat pipe is provided with liquid-sucking core, in the first heat pipe, is injected with working medium and by end cap seal.
The drill bit of the expiloration of coal mines designed by the utility model, its radiating principle is: under the effect of liquid-sucking core, working medium enters into evaporator section, when drill bit uses, Temperature of Working near working end raises vaporization, the working medium of vaporizing under differential pressure action flows to the condensation segment of heat pipe, liquid is condensed into and outwardly releases heat at condensation segment, these liquid working substances being positioned at condensation segment turn back to evaporator section under the effect of liquid-sucking core capillary suction force, and vaporization of being again heated, iterative cycles like this is to realize the cooling with the drill bit of diamond compact, and radiating effect is better.
As preferably: the position in described bit matrix between the first heat pipe is provided with the second heat pipe, and the second heat pipe is evaporator section near one end of working end, the other end is condensation segment; The tube wall of the second heat pipe is also provided with liquid-sucking core, in the second heat pipe, is also injected with working medium and by end cap seal.
The drill bit of the expiloration of coal mines designed by the utility model, its beneficial effect is: bit life is long: take diamond compact as main cutting tooth, the anti-wear performance of composite sheet is more than 20-40 times of carbide alloy, application life be normal drill bit 3-5 doubly more than, from good heat dissipation effect, long service life, makes not to be suitable for carry out in process of coal mining used for geological prospecting.
Accompanying drawing explanation
Fig. 1 is the front view of the drill bit of embodiment 1 expiloration of coal mines;
Fig. 2 is the sectional view of the drill bit of embodiment 1 expiloration of coal mines;
Fig. 3 is the sectional view of the drill bit of embodiment 1 expiloration of coal mines.
Detailed description of the invention
Below by embodiment, the utility model will be further described by reference to the accompanying drawings.
Embodiment 1:
As shown in Figure 1, 2, the drill bit of the expiloration of coal mines described by the present embodiment, comprise bit matrix 1 and diamond compact 2, described diamond compact 2 is welded on bit matrix 1, the quantity that the working end of bit matrix 1 is along the circumferential direction wholely set some supporter 3(supporters 3 is generally four to eight), supporter 3 is provided with groove 4, is provided with described diamond compact 2 in groove 4, described diamond compact 2 is higher than supporter 3 top; There is in described bit matrix 1 some first heat pipes 5, described first heat pipe 5 quantity and position identical with supporter 3 and supporter 3 corresponding; Described supporter 3 is stretched at described first heat pipe 5 top; The high temperature produced at supporter 3 place so is more easily shed, and the first heat pipe 5 top is stretched into described supporter 3 and made the first heat pipe 5 closer to operating point to improve radiating effect; First heat pipe 5 is evaporator section 7 near one end of working end, the other end is condensation segment 8; The tube wall of the first heat pipe 5 is provided with liquid-sucking core 9, in the first heat pipe 5, is injected with working medium 11 and is sealed by end cap 10.
The drill bit of the expiloration of coal mines described by the present embodiment, its beneficial effect is: under the effect of liquid-sucking core 9, working medium 11 enters into evaporator section 7, when drill bit uses, working medium 11 temperature near working end raises vaporization, the working medium 11 of vaporizing under differential pressure action flows to the condensation segment 8 of heat pipe, liquid is condensed into and outwardly releases heat at condensation segment 8, these liquid working substances 11 being positioned at condensation segment 8 turn back to evaporator section 7 under the effect of liquid-sucking core 9 capillary suction force, and vaporization of being again heated, iterative cycles like this is to realize the cooling with the drill bit of diamond compact, radiating effect is better.
Embodiment 2:
As shown in Figure 3, the drill bit of the expiloration of coal mines described by the present embodiment, as different from Example 1: the position in described bit matrix 1 between first heat pipe 5 is provided with that the second heat pipe 6, second heat pipe 6 is evaporator section 7 near one end of working end, the other end is condensation segment 8; The tube wall of the second heat pipe 6 is also provided with liquid-sucking core 9, in the second heat pipe 6, is also injected with working medium 11 and is sealed by end cap 10.The layout of the second heat pipe 6 is the thermal diffusivities in order to improve the work plane region between drill bit supporter 3.
The drill bit of the expiloration of coal mines described by the present embodiment, bit life is long: take diamond compact as main cutting tooth, the anti-wear performance of composite sheet is more than 20-40 times of carbide alloy, application life be normal drill bit 3-5 doubly more than, from good heat dissipation effect, long service life, makes not to be suitable for carry out in process of coal mining used for geological prospecting.
Above-described embodiment is only to design of the present utility model explanation for example, and significantly, the protection domain of this patent is not limited to above-described embodiment.
The various equivalent modifications or supplementary that those skilled in the art do above-described embodiment, all should fall into the protection domain of this patent.
Claims (2)
1. the drill bit of an expiloration of coal mines, comprise bit matrix (1) and diamond compact (2), described diamond compact (2) is welded on bit matrix (1), it is characterized in that the working end of bit matrix (1) has along the circumferential direction been wholely set some supporters (3), supporter (3) is provided with groove (4), be provided with described diamond compact (2) in groove (4), described diamond compact (2) is higher than supporter (3) top; There is in described bit matrix (1) some first heat pipes (5), described first heat pipe (5) quantity and position identical with supporter (3) and supporter (3) corresponding; Described supporter (3) is stretched at described first heat pipe (5) top; First heat pipe (5) is evaporator section (7) near one end of working end, the other end is condensation segment (8); The tube wall of the first heat pipe (5) is provided with liquid-sucking core (9), in the first heat pipe (5), is injected with working medium (11) and is sealed by end cap (10).
2. the drill bit of expiloration of coal mines according to claim 1, it is characterized in that the position in described bit matrix (1) between the first heat pipe (5) is provided with the second heat pipe (6), the second heat pipe (6) is evaporator section (7) near one end of working end, the other end is condensation segment (8); The tube wall of the second heat pipe (6) is also provided with liquid-sucking core (9), in the second heat pipe (6), is also injected with working medium (11) and is sealed by end cap (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520367436.4U CN204646118U (en) | 2015-05-29 | 2015-05-29 | A kind of drill bit of expiloration of coal mines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520367436.4U CN204646118U (en) | 2015-05-29 | 2015-05-29 | A kind of drill bit of expiloration of coal mines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204646118U true CN204646118U (en) | 2015-09-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520367436.4U Expired - Fee Related CN204646118U (en) | 2015-05-29 | 2015-05-29 | A kind of drill bit of expiloration of coal mines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204646118U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107120067A (en) * | 2017-06-26 | 2017-09-01 | 吉林大学 | A kind of diamond geological core bit of utilization heat pipe heat radiation |
-
2015
- 2015-05-29 CN CN201520367436.4U patent/CN204646118U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107120067A (en) * | 2017-06-26 | 2017-09-01 | 吉林大学 | A kind of diamond geological core bit of utilization heat pipe heat radiation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150916 Termination date: 20160529 |