CN205135422U - Tricone drill bit with powerful protection drill bit core - Google Patents
Tricone drill bit with powerful protection drill bit core Download PDFInfo
- Publication number
- CN205135422U CN205135422U CN201521008227.7U CN201521008227U CN205135422U CN 205135422 U CN205135422 U CN 205135422U CN 201521008227 U CN201521008227 U CN 201521008227U CN 205135422 U CN205135422 U CN 205135422U
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- tooth
- drill bit
- bit
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- carbide alloy
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Abstract
The utility model relates to a tricone drill bit with powerful protection drill bit core, three gear wheel is adorned respectively on three bit legs, three bit leg assembly welding in an organic wholes, crisscross cloth profile of tooth becomes the meshing relation between the three gear wheel, the other cloth of equalling divide of cutting teeth on the ring gear in core region has the vice tooth of carbide, the vice tooth of carbide is impressed with the interference fit mode in the perforation, the crown of the vice tooth of carbide is higher than the ring gear, the vice tooth of carbide distributes with adjacent cutting teeth is crisscross, every cutting teeth and the vice profile of tooth of adjacent carbide reticulate by point and face ring gear protection architecture. Drill bit core ring gear design area pair tooth structure not only has former blast hole tricone rock bit's function, has protected the ring gear moreover effectively, and the vice tooth of carbide is protected by the point and in the face of the ring gear impress the perforation with the interference fit mode in, has solved the problem that causes the premature failure of drill bit cutting structure after gear wheel center part ring gear weares and teares, and in the life -span of having improved the drill bit, the structure is succinct.
Description
Technical field
The utility model relates to a kind of tricone bit of mining, particularly relates to a kind of tricone bit with strength protection drill bit core.
Background technology
At present, blasthole tricone rock bit as shown in Figure 1, be contained on three bit legs 2 respectively by three gear wheels 1, together, form tricone bit, gear wheel external surface is mainly gear ring and teeth groove to three bit leg 2 assembly weldings, tungsten carbide button's tooth on gear ring, three gear wheels constitute cutting structure together, and drill bit is mainly by cutting structure impact grinding stratum, and drill bit core is the central area of bit cutting structure.For meeting processing request, gear wheel gear ring has carried out anti-carburizi ng process, bit operation is when the abrasiveness on stratum has exceeded the abrasion resistance of bit central, the gear ring in bit central region can be caused to wear and tear, cause carbide button broken teeth and fall tooth, finally make drill bit initial failure, inefficacy drill bit presents the situation of drill bit core knockout.
Utility model content
The purpose of this utility model is the deficiency overcoming prior art existence, provides a kind of tricone bit with strength protection drill bit core.
The purpose of this utility model is achieved through the following technical solutions:
There is the tricone bit of strength protection drill bit core, comprise gear wheel and bit leg, three gear wheels are contained on three bit legs respectively, three bit leg assembly weldings are in one, feature is: between three gear wheels, staggered cloth tooth forms meshing relation, cutting teeth on the gear ring of core area is other is distributed with the secondary tooth of carbide alloy, the secondary tooth of carbide alloy is with in interference fit press-in perforation, the crown of the secondary tooth of carbide alloy is higher than gear ring, the secondary tooth of carbide alloy and adjacent cutting tooth are interspersed, the secondary profile of tooth of each cutting teeth and adjacent carbide alloy is webbed by putting and face gear ring operator guards.
Further, the above-mentioned tricone bit with strength protection drill bit core, wherein, the secondary tooth of described carbide alloy is the secondary tooth of wearable hard alloy.
Further, the above-mentioned tricone bit with strength protection drill bit core, wherein, the diameter of the secondary tooth of described carbide alloy is 4.834mm, and be highly 0.71mm grinningly, perforation buried depth is 5.59mm.
Again further, the above-mentioned tricone bit with strength protection drill bit core, wherein, the quantity of the secondary tooth of described carbide alloy is 50.
Substantive distinguishing features and the progress of technical solutions of the utility model are mainly reflected in:
The secondary toothing of drill bit core gear ring design band; not only there is the function of former blasthole tricone rock bit; and effectively protect gear ring; the secondary tooth of carbide alloy is with in interference fit press-in perforation; by putting and protecting in the face of gear ring, cause the problem of bit cutting structure premature failure after solving the gear ring wearing and tearing of gear wheel centre, improve the life-span of drill bit; simple for structure, be the new design of a practicality.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, technical solutions of the utility model are described further:
Fig. 1: the structural representation of tricone bit;
Fig. 2: tricone bit cutting structure meshing relation schematic diagram;
Fig. 3: the schematic front view of gear wheel;
Fig. 4: the schematic top plan view of gear wheel;
Fig. 5: the structural representation of secondary tooth.
Detailed description of the invention
There is the tricone bit of strength protection drill bit core, comprise gear wheel and bit leg, three gear wheels are contained on three bit legs respectively, three bit leg assembly weldings are in one, between three gear wheels, staggered cloth tooth forms meshing relation, as shown in figs. 2 to 4, cutting teeth 4 on the gear ring of core area 3 is other is distributed with the secondary tooth 5 of carbide alloy, the secondary tooth of carbide alloy is pressed into perforation in an interference fit, crown is a little more than gear ring, the secondary tooth of carbide alloy and adjacent cutting tooth are interspersed, the secondary tooth of carbide alloy does not cut stratum, the secondary profile of tooth of each cutting teeth and adjacent carbide alloy is webbed by putting and face gear ring operator guards.The secondary tooth 5 of carbide alloy is the secondary tooth of wearable hard alloy, and the total quantity of the secondary tooth of carbide alloy is 50.
As shown in Figure 5, the diameter of the secondary tooth of carbide alloy is 4.834mm, and be highly 0.71mm grinningly, perforation buried depth is 5.59mm.
According to working environment and the object that will reach rapid drilling of mining drill bit; the secondary toothing of the utility model drill bit core gear ring design band; not only there is the function of former blasthole tricone rock bit; and effectively protect gear ring, the secondary tooth of carbide alloy with in interference fit press-in perforation, by putting and protecting in the face of gear ring; the problem of bit cutting structure premature failure is caused after solving the gear ring wearing and tearing of gear wheel centre; improve the life-span of drill bit, simple for structure, be the new design of a practicality.
It is to be understood that: the above is only preferred embodiment of the present utility model; for those skilled in the art; under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (4)
1. there is the tricone bit of strength protection drill bit core, comprise gear wheel and bit leg, three gear wheels are contained on three bit legs respectively, three bit leg assembly weldings are in one, it is characterized in that: between three gear wheels, staggered cloth tooth forms meshing relation, cutting teeth on the gear ring of core area is other is distributed with the secondary tooth of carbide alloy, the secondary tooth of carbide alloy is with in interference fit press-in perforation, the crown of the secondary tooth of carbide alloy is higher than gear ring, the secondary tooth of carbide alloy and adjacent cutting tooth are interspersed, the secondary profile of tooth of each cutting teeth and adjacent carbide alloy is webbed by putting and face gear ring operator guards.
2. the tricone bit with strength protection drill bit core according to claim 1, is characterized in that: the secondary tooth of described carbide alloy is the secondary tooth of wearable hard alloy.
3. the tricone bit with strength protection drill bit core according to claim 1 and 2, is characterized in that: the diameter of the secondary tooth of described carbide alloy is 4.834mm, and be highly 0.71mm grinningly, perforation buried depth is 5.59mm.
4. the tricone bit with strength protection drill bit core according to claim 1, is characterized in that: the quantity of the secondary tooth of described carbide alloy is 50.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521008227.7U CN205135422U (en) | 2015-12-08 | 2015-12-08 | Tricone drill bit with powerful protection drill bit core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521008227.7U CN205135422U (en) | 2015-12-08 | 2015-12-08 | Tricone drill bit with powerful protection drill bit core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205135422U true CN205135422U (en) | 2016-04-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521008227.7U Active CN205135422U (en) | 2015-12-08 | 2015-12-08 | Tricone drill bit with powerful protection drill bit core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205135422U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105350914A (en) * | 2015-12-08 | 2016-02-24 | 苏州新锐合金工具股份有限公司 | Tricone bit with strength protection drill core |
-
2015
- 2015-12-08 CN CN201521008227.7U patent/CN205135422U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105350914A (en) * | 2015-12-08 | 2016-02-24 | 苏州新锐合金工具股份有限公司 | Tricone bit with strength protection drill core |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |