CN203925298U - Anti-wear drill bit - Google Patents
Anti-wear drill bit Download PDFInfo
- Publication number
- CN203925298U CN203925298U CN201420305006.5U CN201420305006U CN203925298U CN 203925298 U CN203925298 U CN 203925298U CN 201420305006 U CN201420305006 U CN 201420305006U CN 203925298 U CN203925298 U CN 203925298U
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- wear
- seat
- resistant layer
- drill bit
- wing seat
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Abstract
The utility model relates to anti-wear drill bit, comprise bit body, radial symmetric and be anti-phasely provided with left and right wing seat on this bit body, between this left and right wing seat, be provided with circular upper water-out mouth and two side delivery ports, on described left wing seat and right flank seat, be installed with respectively arc surfaced diamond compact, the outer rim parcel of described left and right wing seat is provided with wear-resistant layer; The utility model is provided with wear-resistant layer at the outer rim parcel of left and right seat, this set is can slow down to a certain extent the further improvement on the basis of wearing and tearing at multiple delivery ports and arc surfaced diamond compact, the outer rim that directly wear-resistant layer is wrapped in to left and right wing seat, can directly play anti-wear effect.In order further to optimize anti-wear effect, on the surface of wear-resistant layer, loss prevention projection is set, make anti-wear better effects if, further extend the application life of anchor bit.
Description
Technical field
The utility model belongs to bit technique field, relates to a kind of anti-wear drill bit.
Background technology
Because bolt support has active support, simple and convenient, the roadway support low cost and other advantages of constructing, in the tunneling process of tunnel, Tunnel Lamp, play vital effect, the quality of bit performance has directly affected drilling efficiency and boring cost.Drill bit driving process in along with sidewall and rock pore in wall friction, impact and diameter diminishes gradually, boring cannot be used, and need to again punch or reaming, therefore drill bit is also scrapped, application life is short, therefore the wear problem of drill bit is most important.In order to address the above problem, people prevent because the aperture that wearing and tearing bring diminishes by gauge bar is set on drill bit, Chinese patent CN202611597U " a kind of Novel polycrystalline diamond compact anchor bit " discloses a kind of like this structure of anchor bit: comprise pedestal, diamond compact, pedestal nest groove and for connecting the screw thread of drill bit and drilling rod, wherein diamond compact welding forms Cutter with pedestal nest groove place, on described pedestal, be also provided with the nest groove for welding alloy bar, and welding alloy bar.Its gauge bar of the anchor bit of this structure (being alloy bar) is straight, and direction is axially, is welded on the outer wall of pedestal.There are some defects in the gauge bar of this kind of structure: first, gauge bar volume is smaller, drill bit forms one in the course of the work taking both wings gauge bar outermost as long diameter, the maximum diameter of drill bit rigid body is the ellipse of short diameter, after work a period of time, bit wear becomes above-mentioned ellipse to lose the function of gauge; Secondly,, in the process of rotating at drill bit, easily and rock wall frictional impact, and then gauge bar easily comes off axial weld seam, can not effectively play antiwear effect.Chinese patent CN202970490U " Novel diamond anchor bit " discloses so a kind of anchor bit structure: bit body is provided with left wing's seat and right flank seat, left wing's seat and right flank seat radial symmetric on bit body distributes and opposite direction, between left wing's seat and right flank seat, be provided with circular upper water-out mouth and two side delivery ports, water inlet and upper water-out mouth, side delivery port communicates, on left wing's seat and right flank seat, be welded with respectively arc surfaced diamond compact, bit body is provided with the ash pit of two radial symmetric distributions and opposite direction, described ash pit is oblique, the setting of this arc surfaced diamond compact and multi-outlet can be played the effect that slows down the degree of wear to a certain extent, but still need further improvement, to extend the application life of anchor bit.
Utility model content
The purpose of this utility model is to provide a kind of anti-wear drill bit, to reach the object in the application life that extends anchor bit.
For realizing goal of the invention, anti-wear drill bit of the present utility model comprises bit body, radial symmetric and be anti-phasely provided with left and right wing seat on this bit body, between this left and right wing seat, be provided with circular upper water-out mouth and two side delivery ports, on described left wing seat and right flank seat, be installed with respectively arc surfaced diamond compact, the outer rim parcel of described left and right wing seat is provided with wear-resistant layer.
Described wear-resistant layer is integrated the arc gauge layer of setting.
Described arc gauge layer is welded in the outer rim of corresponding left and right wing seat.
Described wear-resistant layer surface is provided with loss prevention projection.
Described loss prevention projection is point-like or wire.
Anti-wear drill bit of the present utility model is provided with wear-resistant layer at the outer rim parcel of left and right seat, this set is can slow down to a certain extent the further improvement on the basis of wearing and tearing at multiple delivery ports and arc surfaced diamond compact, the outer rim that directly wear-resistant layer is wrapped in to left and right wing seat, can directly play anti-wear effect.In order further to optimize anti-wear effect, on the surface of wear-resistant layer, loss prevention projection is set, make anti-wear better effects if, further extend the application life of anchor bit.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment.
Detailed description of the invention
As shown in Figure 1, anti-wear drill bit comprises the bit body 1 being connected with threaded rod 2, this bit body 1 is provided with left wing's seat 6 and right flank seat 8, and left wing's seat 6 and right flank seat 8 radial symmetric and anti-phase on bit body 1, threaded rod 2 is provided with circular water inlet, a corresponding upper water-out mouth 7 and two the side delivery ports 4 that are provided with circle between left wing's seat and right flank seat, certain circular water inlet and filling pipe end 7, side delivery port 4 communicates, on left wing's seat 6 and right flank seat 8, be admittedly welded with respectively arc surfaced diamond compact 5, bit body 1 is provided with the ash pit 3 of two radial symmetric distributions and opposite direction, and ash pit 3 is obliquely installed, at left wing's seat 6, the outer rim parcel welding of right flank seat 8 is provided with the arc gauge layer 21 being wholely set, the surface of this arc gauge layer 21 is provided with point-like loss prevention projection 22.
The above embodiment is described preferred embodiment of the present utility model; not scope of the present utility model is limited; do not departing under the prerequisite of the utility model design spirit; various distortion and improvement that the common engineers and technicians in this area make the technical solution of the utility model, all should fall in the definite protection domain of claims of the present utility model.
Claims (5)
1. anti-wear drill bit, comprise bit body, radial symmetric and be anti-phasely provided with left and right wing seat on this bit body, between this left and right wing seat, be provided with circular upper water-out mouth and two side delivery ports, on described left wing seat and right flank seat, be installed with respectively arc surfaced diamond compact, it is characterized in that, the outer rim parcel of described left and right wing seat is provided with wear-resistant layer.
2. anti-wear drill bit according to claim 1, is characterized in that, described wear-resistant layer is integrated the arc gauge layer of setting.
3. anti-wear drill bit according to claim 2, is characterized in that, described arc gauge layer is welded in the outer rim of corresponding left and right wing seat.
4. according to the anti-wear drill bit described in any one in claim 1-3, it is characterized in that, described wear-resistant layer surface is provided with loss prevention projection.
5. anti-wear drill bit according to claim 4, is characterized in that, described loss prevention projection is point-like or wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420305006.5U CN203925298U (en) | 2014-06-10 | 2014-06-10 | Anti-wear drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420305006.5U CN203925298U (en) | 2014-06-10 | 2014-06-10 | Anti-wear drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203925298U true CN203925298U (en) | 2014-11-05 |
Family
ID=51821127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420305006.5U Active CN203925298U (en) | 2014-06-10 | 2014-06-10 | Anti-wear drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203925298U (en) |
-
2014
- 2014-06-10 CN CN201420305006.5U patent/CN203925298U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |