CN204691682U - A kind of drill bit with anticreep alloy sheet - Google Patents
A kind of drill bit with anticreep alloy sheet Download PDFInfo
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- CN204691682U CN204691682U CN201520358727.7U CN201520358727U CN204691682U CN 204691682 U CN204691682 U CN 204691682U CN 201520358727 U CN201520358727 U CN 201520358727U CN 204691682 U CN204691682 U CN 204691682U
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- drill bit
- alloy sheet
- anticreep
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Abstract
The utility model discloses a kind of drill bit with anticreep alloy sheet, it is characterized in that, comprise drill body and drilling rod, the rear end face of described drill body is provided with drill bit alloy sheet, described drill body front portion is provided with the brill tooth be uniformly distributed circumferentially, be provided with the drill body rear end face diameter after drill bit alloy sheet and be less than drill body front end face diameter, described drilling rod is fixedly connected with described drill body; A kind of drill bit with anticreep alloy sheet of the utility model not only structure is simple, and effectively can solve drill chuck brill problem.
Description
Technical field
The utility model relates to mine drianage boring technical field, particularly relates to a kind of drill bit with anticreep alloy sheet.
Background technology
When mine drill eye blasting, be all use rig jewel hole, the drill bit of rig has various forms, but is all be provided with alloy sword on the end surface of drill bit, reaches the object of impact or rock cutting.When playing vertical boring, sometimes slag-off phenomenon occurs, namely some rock fragment falls into boring, is easy to block drill bit when carrying brill, impact construction.
In addition, in soft rocks leting speeper process, when whole hole retreats and bores; a layer position is changed when retreating to rock; during especially hardening from sandstone rock, because tooth is not bored in the rear portion of drill bit, often there will be drill bit rear portion and be stuck in the phenomenon of changing layer position; now need repeatedly to creep into retrogressing and could exit drill bit smoothly; this problem brings very large puzzlement to constructor, often needs the human users known a thing or two, and has therefore delayed normal construction; if dealt with improperly, there is the danger that drill bit drops equally.
Existing drill bit mostly cannot solve the problem be easily stuck in boring, has the drill bit of some preventing stickings, utilizes extra power, complex structure and power consumption, therefore, is necessary to develop a kind of structure simple and effectively can solve the drill bit that drill chuck bores problem.
Utility model content
For the deficiencies in the prior art, the utility model provides a kind of drill bit with anticreep alloy sheet, and described a kind of drill bit with anticreep alloy sheet not only structure is simple, and effectively can solve drill chuck brill problem.
In order to solve the problems of the technologies described above, the utility model provides a kind of drill bit with anticreep alloy sheet, comprise drill body, drilling rod and brill tooth, described drill body is cylinder, there is front end face and rear end face, described brill tooth is circumferentially evenly arranged on the front end face of described drill body, the rear end face of described drill body is provided with drill bit alloy sheet, described drilling rod is fixedly connected with described drill body and stretches out from described drill body rear end face, and the diameter of described drill body rear end face is less than the diameter of described drill body front end face.
Preferably, described drill bit alloy plates is on described drill body.
Preferably, described drill bit alloy sheet quantity is at least 3 and circumference is evenly distributed on the rear end face of drill body.
Particularly, described drill bit alloy sheet is conical cutting teeth, and the rounding radii at described conical cutting teeth tip is 2-5mm.
Preferably, the length of described drill bit alloy sheet is less than the length of described brill tooth, and described drill bit alloy sheet is W-Co kind hard metal tip.
Further, described brill number of teeth amount is 3, and described brill tooth is strip cutting teeth.
A kind of drill bit with anticreep alloy sheet of the utility model, has following beneficial effect:
1. a kind of drill bit with anticreep alloy sheet of the utility model efficiently solves bit freezing problem when moving back brill, can under the condition not changing drilling rod direction of rotation, drill bit is exited along boring rotation, greatly reduces the probability of breaking of rod rod bit, decrease equipment loss.
2. a kind of drill bit with anticreep alloy sheet of the utility model improves operating efficiency, saves and moves back brill required time, decreases the probability causing rod bit to come off because changing layer.
3. a kind of drill bit structure with anticreep alloy sheet of the utility model is simple, with low cost, easy to use and reliable.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical solution of the utility model, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of drill bit with anticreep alloy sheet of the utility model;
In figure: 1-drill body, 2-drilling rod, 3-drill bit alloy sheet, 4-bores tooth.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite of not making creative work, all belongs to the scope of the utility model protection.
As shown in Figure 1, the utility model discloses a kind of drill bit with anticreep alloy sheet, comprise drill body 1, drilling rod 2 and bore tooth 4, described drill body 1 is cylinder, there is front end face and rear end face, described brill tooth 4 is circumferentially evenly arranged on the front end face of described drill body 1, the rear end face of described drill body 1 is provided with drill bit alloy sheet 3, described drilling rod 2 is fixedly connected with described drill body 1 and stretches out from described drill body 1 rear end face, and the diameter of described drill body 1 rear end face is less than the diameter of described drill body 1 front end face.
Described drill bit alloy sheet 3 is welded on described drill body 1, described drill bit alloy sheet 3 quantity is at least 3 and circumference is uniformly distributed, and when ensureing in working order, bit force is even, avoids skewness occurs, described drill bit alloy sheet 3 must not be long, in order to avoid normally tunnel wearing and tearing.
Described drill bit alloy sheet 3 is conical cutting teeth, the rounding radii at described conical cutting teeth tip is 2-5mm, the length of described drill bit alloy sheet 3 is less than the length of described brill tooth 4, described drill bit alloy sheet 3 is W-Co kind hard metal tip, in soft rocks leting speeper process, when whole hole retreats and bores, when retreating to rock and changing layer position, when especially becoming hard rock from sandstone, due to the existence of skewness, drill bit cannot directly be exited from hole, drill bit alloy sheet 3 is needed to cut along moving back brill direction hard rock, avoid due to phenomenons such as bit freezing cause that drill bit drops.
Described brill tooth 4 quantity is 3, and described brill tooth 4 is strip cutting teeth.
A kind of drill bit with anticreep alloy sheet of the utility model, has following beneficial effect:
1. a kind of drill bit with anticreep alloy sheet of the utility model efficiently solves bit freezing problem when moving back brill, can under the condition not changing drilling rod direction of rotation, drill bit is exited along boring rotation, greatly reduces the probability of breaking of rod rod bit, decrease equipment loss.
2. a kind of drill bit with anticreep alloy sheet of the utility model improves operating efficiency, saves and moves back brill required time, decreases the probability causing rod bit to come off because changing layer.
3. a kind of drill bit structure with anticreep alloy sheet of the utility model is simple, with low cost, easy to use and reliable.
The above is preferred embodiment of the present utility model; it should be pointed out that 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 are also considered as protection domain of the present utility model.
Claims (6)
1. the drill bit with anticreep alloy sheet, it is characterized in that, comprise drill body (1), drilling rod (2) and brill tooth (4), described drill body (1) is cylinder, there is front end face and rear end face, described brill tooth (4) is circumferentially evenly arranged on the front end face of described drill body (1), the rear end face of described drill body (1) is provided with drill bit alloy sheet (3), described drilling rod (2) is fixedly connected with described drill body (1) and stretches out from described drill body (1) rear end face, the diameter of described drill body (1) rear end face is less than the diameter of described drill body (1) front end face.
2. a kind of drill bit with anticreep alloy sheet according to claim 1, is characterized in that, described drill bit alloy sheet (3) is welded on described drill body (1).
3. a kind of drill bit with anticreep alloy sheet according to claim 2, is characterized in that, described drill bit alloy sheet (3) quantity is at least 3 and circumference is evenly distributed on the rear end face of drill body.
4. a kind of drill bit with anticreep alloy sheet according to claim 3, is characterized in that, described drill bit alloy sheet (3) is conical cutting teeth, and the rounding radii at described conical cutting teeth tip is 2-5mm.
5. according to a kind of drill bit with anticreep alloy sheet in claim 1-4 described in any one, it is characterized in that, the length of described drill bit alloy sheet (3) is less than the length of described brill tooth (4), and described drill bit alloy sheet (3) is W-Co kind hard metal tip.
6. a kind of drill bit with anticreep alloy sheet according to claim 1, is characterized in that, described brill tooth (4) quantity is 3, and described brill tooth (4) is strip cutting teeth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520358727.7U CN204691682U (en) | 2015-05-29 | 2015-05-29 | A kind of drill bit with anticreep alloy sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520358727.7U CN204691682U (en) | 2015-05-29 | 2015-05-29 | A kind of drill bit with anticreep alloy sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204691682U true CN204691682U (en) | 2015-10-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520358727.7U Active CN204691682U (en) | 2015-05-29 | 2015-05-29 | A kind of drill bit with anticreep alloy sheet |
Country Status (1)
| Country | Link |
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| CN (1) | CN204691682U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110173217A (en) * | 2019-04-21 | 2019-08-27 | 张振营 | Front and back bidirectional drill |
-
2015
- 2015-05-29 CN CN201520358727.7U patent/CN204691682U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110173217A (en) * | 2019-04-21 | 2019-08-27 | 张振营 | Front and back bidirectional drill |
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| GR01 | Patent grant |