CN216381225U - Diamond composite spherical tooth - Google Patents
Diamond composite spherical tooth Download PDFInfo
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- CN216381225U CN216381225U CN202122066855.2U CN202122066855U CN216381225U CN 216381225 U CN216381225 U CN 216381225U CN 202122066855 U CN202122066855 U CN 202122066855U CN 216381225 U CN216381225 U CN 216381225U
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- diamond composite
- spherical crown
- groove
- arc transition
- composite layer
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Abstract
The utility model discloses a diamond composite spherical tooth, which comprises a hard alloy substrate and a diamond composite layer, wherein the hard alloy substrate comprises a cylindrical part and a spherical crown part arranged on the top surface of the cylindrical part, an arc transition part is arranged between the cylindrical part and the spherical crown part, and the diamond composite layer is arranged on the spherical crown part and the arc transition part. This diamond composite button, the diamond composite bed covers on the spherical crown portion and the circular arc transition portion of carbide base member, through set up tangent circular arc transition portion between cylinder portion and spherical crown portion, the toughness of diamond composite bed and carbide base member faying face has been improved, prevent that the diamond composite bed from droing, reduce the local internal stress of diamond composite bed simultaneously, prevent that the diamond composite bed from because of local internal stress fracture too big, the shock resistance of diamond composite button has been improved, the life of diamond composite button has been prolonged, the exploitation efficiency in mine has been promoted, the exploitation cost has been reduced.
Description
Technical Field
The utility model relates to the technical field of mining equipment, in particular to a diamond composite spherical tooth.
Background
The diamond composite tooth is a superhard composite tooth consisting of a diamond composite layer and a hard alloy substrate, and in a specific stratum, the traditional hard alloy drilling tooth is basically replaced. When the diamond composite tooth is in work, the diamond composite tooth is exposed at the outermost part of the drill bit and directly acts on a hard rock stratum to crush the rock stratum, and the working condition is very severe, so that the diamond composite tooth not only is subjected to a strong abrasion action, but also can bear huge impact force. The toughness of a joint surface between a diamond composite layer and a hard alloy matrix of the existing diamond composite tooth is poor, the diamond composite layer is easy to fall off due to huge impact force, and the diamond composite layer is easy to break due to local internal stress of the diamond composite layer, so that the whole diamond composite tooth is early failed, the mining efficiency is influenced, and the mining cost is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide the diamond composite spherical tooth which is beneficial to improving the toughness of the joint surface of the diamond composite layer and the hard alloy matrix and reducing the breakage of the diamond composite layer.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the diamond composite spherical tooth comprises a hard alloy substrate and a diamond composite layer, wherein the hard alloy substrate comprises a cylindrical part and a spherical crown part arranged on the top surface of the cylindrical part, an arc transition part is arranged between the cylindrical part and the spherical crown part, and the diamond composite layer is arranged on the spherical crown part and the arc transition part.
As a further improvement of the above technical solution: the thickness of the diamond composite layer is gradually reduced from the top to the bottom.
As a further improvement of the above technical solution: the thickness of the diamond composite layer is 0.5mm to 3 mm.
As a further improvement of the above technical solution: the surface of the spherical crown part is provided with grooves.
As a further improvement of the above technical solution: the groove comprises a plurality of circular grooves, and the circle center of each circular groove is located on the axis of the cylindrical part.
As a further improvement of the above technical solution: the depth of circular recess is 0.2mm to 1mm, the groove width of circular recess is 0.4mm to 2mm, adjacent two the interval of circular recess is 0.4mm to 2 mm.
As a further improvement of the above technical solution: the grooves further comprise cross-shaped grooves, and the intersection points of the cross-shaped grooves are coincided with the top points of the spherical crown parts.
As a further improvement of the above technical solution: the depth of the cross-shaped groove is 0.2mm to 1mm, and the groove width of the cross-shaped groove is 0.4mm to 2 mm.
Compared with the prior art, the utility model has the beneficial effects that:
according to the diamond composite spherical tooth disclosed by the utility model, the diamond composite layer covers the spherical crown part and the arc transition part of the hard alloy matrix, and the tangential arc transition part is arranged between the cylindrical part and the spherical crown part, so that the toughness of the joint surface of the diamond composite layer and the hard alloy matrix is improved, the diamond composite layer is prevented from falling off, the local internal stress of the diamond composite layer is reduced, the diamond composite layer is prevented from being broken due to overlarge local internal stress, the impact resistance of the diamond composite spherical tooth is improved, the service life of the diamond composite spherical tooth is prolonged, the mining efficiency of a mine is improved, and the mining cost is reduced.
Drawings
Fig. 1 is a schematic perspective view of a diamond composite button according to embodiment 1 of the present invention.
Fig. 2 is a schematic structural view of a front cross section of a diamond composite button in embodiment 1 of the present invention.
Fig. 3 is a schematic structural view of a cemented carbide substrate in example 1 of the present invention.
Fig. 4 is a schematic perspective view of a diamond composite button according to embodiment 2 of the present invention.
Fig. 5 is a schematic structural view of a front cross section of a diamond composite button in embodiment 2 of the present invention.
Fig. 6 is a schematic structural view of a cemented carbide substrate in example 2 of the present invention.
Fig. 7 is a schematic perspective view of a diamond composite button according to embodiment 3 of the present invention.
Fig. 8 is a schematic structural view of a front cross section of a diamond composite button in embodiment 3 of the present invention.
Fig. 9 is a schematic structural view of a cemented carbide substrate in example 3 of the present invention.
The reference numerals in the figures denote: 1. a cemented carbide substrate; 11. a cylindrical portion; 12. a ball crown portion; 121. a groove; 122. a circular groove; 123. a cross-shaped groove; 13. a circular arc transition portion; 2. and (3) diamond composite layer.
Detailed Description
The utility model is described in further detail below with reference to the figures and specific examples of the specification.
Example 1
Fig. 1 to 3 show an embodiment of the present invention, and the diamond composite button of the embodiment includes a cemented carbide substrate 1 and a diamond composite layer 2, the cemented carbide substrate 1 includes a cylindrical portion 11 and a spherical crown portion 12 disposed on a top surface of the cylindrical portion 11, an arc transition portion 13 is disposed between the cylindrical portion 11 and the spherical crown portion 12, and the diamond composite layer 2 is disposed on the spherical crown portion 12 and the arc transition portion 13.
This diamond composite button, diamond composite bed 2 covers on spherical crown portion 12 and the circular arc transition portion 13 of carbide base member 1, through set up tangent circular arc transition portion 13 between cylinder portion 11 and spherical crown portion 12, the toughness of diamond composite bed 2 and 1 faying face of carbide base member has been improved, prevent that diamond composite bed 2 from droing, reduce diamond composite bed 2's local internal stress simultaneously, prevent that diamond composite bed 2 from because of the too big fracture of local internal stress, the shock resistance of diamond composite button has been improved, the life of diamond composite button has been prolonged, the mining efficiency in mine has been promoted, the mining cost has been reduced.
In this embodiment, the thickness of the diamond composite layer 2 is gradually reduced from the top to the bottom. The thickness of the diamond composite layer 2 is 0.5mm to 3 mm. Through thickening the thickness at 2 tops of diamond composite bed, can effectively prevent that the too big impact force that receives at 2 tops of diamond composite bed from leading to failing in advance.
Example 2
As shown in fig. 4 to 6, the structure of the present embodiment is substantially the same as that of embodiment 1, except that: the surface of the spherical crown part 12 is provided with a groove 121, the groove 121 comprises a plurality of circular grooves 122, the center of each circular groove 122 is located on the axis of the cylindrical part 11, the depth of each circular groove 122 is 0.2mm to 1mm, the width of each circular groove 122 is 0.4mm to 2mm, and the distance between every two adjacent circular grooves 122 is 0.4mm to 2 mm. The plurality of circular grooves 122 are formed in the spherical crown part 12, so that the diamond composite layer 2 is better embedded on the hard alloy matrix 1, the toughness of the bonding surface of the diamond composite layer 2 and the hard alloy matrix 1 is further improved, and the diamond composite layer 2 is prevented from falling off.
Example 3
As shown in fig. 7 to 9, the structure of the present embodiment is substantially the same as that of embodiment 2, except that: in this embodiment, the groove 121 further includes a cross-shaped groove 123, an intersection of the cross-shaped groove 123 coincides with a vertex of the spherical crown portion 12, a depth of the cross-shaped groove 123 is 0.2mm to 1mm, and a groove width of the cross-shaped groove 123 is 0.4mm to 2 mm. By arranging the cross-shaped groove 123 and the plurality of circular grooves 122 on the spherical crown part 12, the diamond composite layer 2 is better embedded on the hard alloy matrix 1, the toughness of the joint surface of the diamond composite layer 2 and the hard alloy matrix 1 is further improved, and the diamond composite layer 2 is prevented from falling off.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the utility model, using the teachings disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.
Claims (5)
1. The utility model provides a diamond composite ball tooth, includes carbide base member (1) and diamond composite bed (2), its characterized in that: the hard alloy matrix (1) comprises a cylindrical portion (11) and a spherical crown portion (12) arranged on the top surface of the cylindrical portion (11), an arc transition portion (13) is arranged between the top of the cylindrical portion (11) and the bottom of the spherical crown portion (12), a diamond composite layer (2) is arranged on the spherical crown portion (12) and the arc transition portion (13), a groove (121) is arranged on the surface of the spherical crown portion (12), the groove (121) comprises a plurality of circular grooves (122), the circle center of each circular groove (122) is located on the axis of the cylindrical portion (11), the groove (121) further comprises a cross-shaped groove (123), and the intersection point of the cross-shaped groove (123) is coincided with the top point of the spherical crown portion (12).
2. The diamond composite button of claim 1, wherein: the thickness of the diamond composite layer (2) is gradually reduced from the top to the bottom.
3. The diamond composite button of claim 2, wherein: the thickness of the diamond composite layer (2) is 0.5mm to 3 mm.
4. The diamond composite button of any one of claims 1 to 3, wherein: the depth of the circular groove (122) is 0.2mm to 1mm, the groove width of the circular groove (122) is 0.4mm to 2mm, and the distance between two adjacent circular grooves (122) is 0.4mm to 2 mm.
5. The diamond composite button of any one of claims 1 to 3, wherein: the depth of the cross-shaped groove (123) is 0.2mm to 1mm, and the groove width of the cross-shaped groove (123) is 0.4mm to 2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122066855.2U CN216381225U (en) | 2021-08-30 | 2021-08-30 | Diamond composite spherical tooth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122066855.2U CN216381225U (en) | 2021-08-30 | 2021-08-30 | Diamond composite spherical tooth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216381225U true CN216381225U (en) | 2022-04-26 |
Family
ID=81239778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122066855.2U Active CN216381225U (en) | 2021-08-30 | 2021-08-30 | Diamond composite spherical tooth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216381225U (en) |
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2021
- 2021-08-30 CN CN202122066855.2U patent/CN216381225U/en active Active
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