CN212428600U - Drill bit for coal mine tunneling - Google Patents
Drill bit for coal mine tunneling Download PDFInfo
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- CN212428600U CN212428600U CN202021290798.5U CN202021290798U CN212428600U CN 212428600 U CN212428600 U CN 212428600U CN 202021290798 U CN202021290798 U CN 202021290798U CN 212428600 U CN212428600 U CN 212428600U
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- drill bit
- column
- threaded
- block
- coal mine
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Abstract
The utility model discloses a drill bit is used in colliery tunnelling, including drill bit, connecting block, screw thread post, the fixed cover of screw thread, spacing inserted block, spacing collar, fixed column, connecting pipe, annular cover, first shape limbers, connector and second breather hole. The utility model has the advantages that: this device is rational in infrastructure, and convenient to use can be comparatively convenient change the drill bit part, and change the operation comparatively simple, and it is very fast to change speed, improves work efficiency, and this device can be comparatively convenient when carrying out the use, and the drill bit department of avoiding is overheated to the cooling of drill bit that on the one hand can be convenient, and on the other hand can wash the groove of drill bit, is fit for using widely.
Description
Technical Field
The utility model relates to a drill bit specifically is a drill bit for coal mine tunnelling belongs to coal mine tunnelling and uses drill bit application technical field.
Background
When the coal seam is far from the ground surface, a tunnel is usually dug to the underground, so that the coal is a mineworker coal mine. When the coal seam is very close to the earth surface, the coal is generally excavated by directly stripping the earth surface, which is an open pit coal mine. The vast majority of coal mines in China belong to underground coal mines.
The drill bit is required to be used during coal mine tunneling, the drill bit is easy to overheat and damage after being used for a long time, meanwhile, the drill bit needs to be replaced and maintained after being damaged, and the traditional dismounting method is troublesome and wastes time. Therefore, a drill bit for coal mine tunneling is provided to solve the problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a drill bit is used in colliery tunnelling just in order to solve above-mentioned problem.
The utility model realizes the purpose through the following technical proposal, a drill bit for coal mine tunneling, which comprises a drill bit, a connecting block, a threaded column, a threaded fixing sleeve, a fixing column and a limiting insert block;
the tail end of the drill bit is fixedly connected with one end of a connecting block, the other end of the connecting block is fixedly connected with one end of a threaded column, the other end of the threaded column is fixedly connected with a limiting insert block, one end of a fixing column is provided with a slot with the same shape and size as the limiting insert block, one end of the limiting insert block is inserted into the slot of the fixing column, the outer surface of the fixing column is provided with a threaded groove, the arc surfaces of the fixing column and the threaded column are in threaded connection with a threaded fixing sleeve, the arc wall of the fixing column is fixedly connected with a limiting ring, the side edge of the threaded fixing sleeve abuts against the limiting ring, and a second-shaped water through hole is formed in the limiting insert block, the;
the fixing device is characterized in that an annular groove is formed in the fixing column, an annular sleeve is connected in the annular groove of the fixing column in a rotating mode, a connector is fixedly mounted on the arc-shaped wall of the annular sleeve, and a first water through hole is formed in the fixing column.
Preferably, the first limber hole is L-shaped, and one end of the first limber hole is communicated with an annular inner cavity formed by the annular sleeve and the fixing column.
Preferably, the tangent plane of the limiting insertion block is rectangular.
Preferably, the inside fixedly connected with connecting pipe of spacing inserted block, one section of connecting pipe extends to in the second shape limbers, the other end of connecting pipe extends to in the first limbers.
Preferably, the second water through hole is Y-shaped, and the section of the connecting block is trapezoidal.
Preferably, the connecting head is communicated with an annular cavity formed by the fixed column and the annular sleeve.
The utility model has the advantages that:
1. the device is reasonable in structure and convenient to use, the drill bit part can be replaced conveniently, the replacement operation is simple, the replacement speed is high, and the working efficiency is improved.
2. This device is when carrying out the use, can be comparatively convenient to water spray drill bit department, on the one hand can be convenient cool down the drill bit and avoid the drill bit overheated, and on the other hand can wash the groove of drill bit, is fit for using widely.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is a schematic view of the internal structure of the present invention;
fig. 2 is a schematic view of a partial transverse enlarged structure at a in fig. 1 according to the present invention;
FIG. 3 is a schematic view of the sectional structure of the limiting insert of the present invention;
FIG. 4 is a schematic view of a second shape of the water hole of the present invention;
fig. 5 is a schematic perspective view of the fixing column of the present invention;
fig. 6 is a schematic perspective view of the ring cover of the present invention.
In the figure: 1. the drill bit, 2, connecting block, 3, screw thread post, 4, the fixed cover of screw thread, 5, spacing inserted block, 6, spacing circle, 7, fixed column, 8, connecting pipe, 9, annular cover, 10, first shape limbers, 11, connector, 12, second limbers.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Referring to fig. 1-6, a drill bit for coal mine excavation comprises a drill bit 1, a connecting block 2, a threaded column 3, a threaded fixing sleeve 4, a fixing column 7 and a limiting insert block 5;
the tail end of the drill bit 1 is fixedly connected with one end of a connecting block 2, the other end of the connecting block 2 is fixedly connected with one end of a threaded column 3, the other end of the threaded column 3 is fixedly connected with a limiting insert block 5, one end of a fixing column 7 is provided with a slot with the same shape and size as the limiting insert block 5, one end of the limiting insert block 5 is inserted into the slot of the fixing column 7, the outer surface of the fixing column 7 is provided with a threaded slot, the arc-shaped surfaces of the fixing column 7 and the threaded column 3 are in threaded connection with a threaded fixing sleeve 4, the arc-shaped wall of the fixing column 7 is fixedly connected with a limiting ring 6, the side edge of the threaded fixing sleeve 4 is tightly abutted against the limiting ring 6, and second-shaped water through holes 12 are formed in the limiting insert block;
an annular groove is formed in the fixing column 7, an annular sleeve 9 is connected to the annular groove of the fixing column 7 in a rotating mode, a connector 11 is fixedly installed on the arc-shaped wall of the annular sleeve 9, and a first water through hole 10 is formed in the fixing column 7.
The first water through hole 10 is L-shaped, and one end of the first water through hole 10 is communicated with an annular inner cavity formed by the annular sleeve 9 and the fixed column 7; the tangent plane of the limiting insertion block 5 is rectangular; a connecting pipe 8 is fixedly connected inside the limiting insertion block 5, one section of the connecting pipe 8 extends into the second water through hole 12, and the other end of the connecting pipe 8 extends into the first water through hole 10; the second water through hole 12 is Y-shaped, and the section of the connecting block 2 is in a regular trapezoid shape; the connecting head 11 is communicated with an annular cavity formed by the fixed column 7 and the annular sleeve 9.
The utility model discloses when using, at first, fix the tail end of fixed column 7 of this device and the output shaft of rig, with the external water supply installation of one end of connector 11, work through the rig drives this device and rotates, tunnel the colliery through the rotation of drill bit 1, external water supply installation supplies water to the annular inner chamber between fixed column 7 and annular cover 9 through connector 11, rivers enter into connecting pipe 8 through first limbers 10, enter into second limbers 12 through connecting pipe 8, spout through the other two of second limbers 12, can spray water the heat dissipation to drill bit 1 when drill bit 1 rotates the tunnelling, avoid drill bit 1 overheated, wash the groove of drill bit 1 simultaneously;
when drill bit 1 breaks down and needs to be maintained and changed, make through rotating fixed cover of screw thread 4 and the fixed column 7 between the separation, can take out spacing inserted block 5 from the slot of fixed column 7, can make between drill bit 1 and the rig separate, change the maintenance to drill bit 1, change after the maintenance, inject spacing inserted block 5 that new drill bit 1 is connected in the slot of fixed column 7, rotate fixed cover of screw thread 4 and make threaded connection between fixed cover of screw thread 4 and the fixed column 7, make fixed cover of screw thread 4 support tight side department at spacing collar 6, make fixed cover of screw thread 4 parcel live screw thread 3 and fixed column 7, can fix screw thread 3, can fix drill bit 1.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (6)
1. The utility model provides a drill bit for coal mine tunnelling which characterized in that: comprises a drill bit (1), a connecting block (2), a threaded column (3), a threaded fixing sleeve (4), a fixing column (7) and a limiting insert block (5);
the tail end of the drill bit (1) is fixedly connected with one end of a connecting block (2), the other end of the connecting block (2) is fixedly connected with one end of a threaded column (3), the other end of the threaded column (3) is fixedly connected with a limit insert block (5), one end of the fixed column (7) is provided with a slot with the same shape and size as the limit insert block (5), one end of the limiting insertion block (5) is inserted into the slot of the fixing column (7), the outer surface of the fixing column (7) is provided with a thread groove, the arc surfaces of the fixed column (7) and the threaded column (3) are in threaded connection with a threaded fixed sleeve (4), the arc-shaped wall of the fixing column (7) is fixedly connected with a limiting ring (6), the side edge of the threaded fixing sleeve (4) tightly abuts against a limiting ring (6), and a second-shaped water through hole (12) is formed in the limiting insertion block (5), the threaded column (3) and the connecting block (2);
an annular groove is formed in the fixing column (7), an annular sleeve (9) is connected to the fixing column (7) in the annular groove in a rotating mode, a connector (11) is fixedly mounted on the arc-shaped wall of the annular sleeve (9), and a first water through hole (10) is formed in the fixing column (7).
2. A coal mine tunnelling drill bit as claimed in claim 1, which is characterized in that: the first water through hole (10) is L-shaped, and one end of the first water through hole (10) is communicated with an annular inner cavity formed by the annular sleeve (9) and the fixing column (7).
3. A coal mine tunnelling drill bit as claimed in claim 1, which is characterized in that: the tangent plane of the limiting insertion block (5) is rectangular.
4. A coal mine tunnelling drill bit as claimed in claim 1, which is characterized in that: the inside fixedly connected with connecting pipe (8) of spacing inserted block (5), one section of connecting pipe (8) extends to in second shape limbers (12), the other end of connecting pipe (8) extends to in first limbers (10).
5. A coal mine tunnelling drill bit as claimed in claim 1, which is characterized in that: the second-shaped water through hole (12) is Y-shaped, and the section of the connecting block (2) is in a regular trapezoid shape.
6. A coal mine tunnelling drill bit as claimed in claim 1, which is characterized in that: the connector (11) is communicated with an annular cavity formed by the fixed column (7) and the annular sleeve (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021290798.5U CN212428600U (en) | 2020-07-02 | 2020-07-02 | Drill bit for coal mine tunneling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021290798.5U CN212428600U (en) | 2020-07-02 | 2020-07-02 | Drill bit for coal mine tunneling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212428600U true CN212428600U (en) | 2021-01-29 |
Family
ID=74278190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021290798.5U Active CN212428600U (en) | 2020-07-02 | 2020-07-02 | Drill bit for coal mine tunneling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212428600U (en) |
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2020
- 2020-07-02 CN CN202021290798.5U patent/CN212428600U/en active Active
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