CN212508123U - Auxiliary clamp for geological drill bit - Google Patents
Auxiliary clamp for geological drill bit Download PDFInfo
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- CN212508123U CN212508123U CN202021190360.XU CN202021190360U CN212508123U CN 212508123 U CN212508123 U CN 212508123U CN 202021190360 U CN202021190360 U CN 202021190360U CN 212508123 U CN212508123 U CN 212508123U
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- connecting part
- thread
- drill bit
- auxiliary clamp
- coal
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Abstract
The utility model discloses a geological drill bit auxiliary clamp, which comprises a first connecting part, a second connecting part and a rear coal breaking cutter; one end of the first connecting part is fixedly connected with one end of the second connecting part, through center holes are formed in the first connecting part and the second connecting part, and the center holes of the first connecting part and the second connecting part are butted to form a center channel for flowing water to pass through; the rear coal breaking cutter is arranged outside the first connecting part or the second connecting part and is provided with a plurality of spray holes communicated with the central channel. The utility model has the advantages that: the stirring of circling round is carried out to downthehole accumulational coal cinder through rearmounted broken coal cutter to utilize orifice spun water under high pressure with coal cinder discharge coal seam drilling, can effectively prevent to take out the card problem of boring tool in-process and bore, this geology drill bit auxiliary clamp can also be used to connect not unidimensional geology drill bit and drilling rod simultaneously, improves the practicality of working face coal seam drilling in-process.
Description
Technical Field
The utility model relates to an anchor clamps especially relate to a geological drill bit auxiliary clamp.
Background
When the underground construction drilling of a coal mine is carried out, a drilling machine, a drill rod and a drill bit are required to be used for drilling operation, the conventional geological drill bit is single in structure and similar in function, mainly comprises a fixing device, drill bit blades, cutter teeth and the like, and a water injection hole is formed in the drill bit body. And during drilling, flowing water is injected into the water injection hole of the drill bit body by using the central hole of the drill rod, so that the water flows into a coal cutting part, on one hand, the drill bit body and the cutter teeth are cooled, and on the other hand, coal dust flowing out of the drill bit is washed. Sometimes, when a drill hole with the flushing layer is constructed, the silt of the flushing layer is not easy to discharge due to softness and is deposited in the drill hole, when the drill hole needs to be retreated when the drilling construction is completed, resistance is increased, the drill hole is not easy to retreat, the rotary retreating time is long, the efficiency is low, sometimes, even the drill bit is clamped and falls into the drill hole, and the normal operation of the construction drilling work is influenced.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve lies in: how to solve silt and pile up in drilling when current geology drill bit is drilled, lead to the problem of sticking of tool.
The utility model discloses a following technical means realizes solving above-mentioned technical problem:
the geological drill auxiliary clamp comprises a first connecting part for connecting a geological drill, a second connecting part for connecting a drill rod and a rear coal breaking cutter; one end of the first connecting part is fixedly connected with one end of the second connecting part, through center holes are formed in the first connecting part and the second connecting part, and the center holes of the first connecting part and the second connecting part are butted to form a center channel for flowing water to pass through; the rear coal breaking cutter is arranged outside the first connecting part or the second connecting part and is provided with a plurality of spray holes communicated with the central channel.
The utility model discloses during the use, be connected first connecting portion with current geology drill bit, be connected the second connecting portion with the bottom of current drilling rod, utilize the centre bore of drilling rod to pour into flowing water into the drill bit during the drilling, flowing water enters into coal body cutting position through central channel by the drilling rod, in the rotation process, through the stirring of circling round of the interior accumulational coal cinder of rear coal cutter, and utilize the high pressure water of orifice spun to discharge the coal cinder out the coal seam drilling, can effectively prevent to take out the sticking of drill bit problem in the drilling tool process, can reduce the required moment of torsion of drilling rod simultaneously, coal seam drilling efficiency has been increased, and has advantages such as simple structure, reliable; the auxiliary clamp for the geological drill bit can also be used for connecting geological drill bits and drill rods with different sizes, and the practicability of the working face coal bed in the drilling process is improved.
Preferably, the central hole of the first connecting part is a cylindrical hole, and the outer surface of the first connecting part is provided with a first thread for connection.
Preferably, the outer surface of the first connecting part is conical, one end close to the second connecting part is a large end, and the first thread is conical thread.
Preferably, the outer surface of the first connecting portion is cylindrical, and the first thread is a cylindrical thread.
First connecting portion pass through the screw thread and are connected with the geology drill bit, connect reliably, the convenient change.
Preferably, the outer surface of the second connecting part is a cylindrical central hole of the second connecting part, and the central hole is provided with a second thread for connection.
Preferably, the center hole of the second connecting portion is a tapered hole, one end close to the first connecting portion is a small end, and the second thread is a conical thread.
Preferably, the central hole of the second connecting part is a cylindrical hole, and the second thread is a cylindrical thread.
The second connecting part is connected with the drill rod through threads, so that the connection is reliable and the replacement is convenient.
Preferably, the rear coal breaking cutter comprises a blade and a plurality of blades, a central hole is formed in the blade, the central hole of the blade is sleeved on the outer wall of the first connecting portion, a plurality of spray holes are formed in one side of the blade, and the blades are uniformly arranged on the other side of the blade.
The rear coal breaking cutter is arranged at a position far away from the drill bit, and the spray holes are arranged at a position close to the drill bit, so that the broken silt or coal cinder can be conveniently discharged by high-pressure water.
Preferably, the nozzle hole is inclined toward the first connection portion. The acting force direction of the high-pressure water can be towards the silt or the coal cinder, so that the slag can be discharged conveniently.
Preferably, the orifices are arranged in a circumferential array.
The utility model has the advantages that:
(1) the utility model discloses during the use, be connected first connecting portion with current geology drill bit, be connected the second connecting portion with the bottom of current drilling rod, utilize the centre bore of drilling rod to pour into flowing water into the drill bit during the drilling, flowing water enters into coal body cutting position through central channel by the drilling rod, in the rotation process, through the stirring of circling round of the interior accumulational coal cinder of rear coal cutter, and utilize the high pressure water of orifice spun to discharge the coal cinder out the coal seam drilling, can effectively prevent to take out the sticking of drill bit problem in the drilling tool process, can reduce the required moment of torsion of drilling rod simultaneously, coal seam drilling efficiency has been increased, and has advantages such as simple structure, reliable; the geological drill auxiliary clamp can also be used for connecting geological drill bits and drill rods with different sizes, so that the practicability in the drilling process of the coal bed of the working face is improved;
(2) the first connecting part is connected with the geological drill bit through threads, so that the connection is reliable and the replacement is convenient; the second connecting part is connected with the drill rod through threads, so that the connection is reliable and the replacement is convenient;
(3) the rear coal breaking cutter is arranged at a position far away from the drill bit, and the spray holes are arranged at a position close to the drill bit, so that the broken silt or coal slag can be conveniently discharged by high-pressure water;
(4) the orifice slope sets up, and the incline direction makes the effort direction of water under high pressure can be towards silt or cinder, is convenient for arrange sediment towards first connecting portion.
Drawings
Fig. 1 is a schematic structural diagram of a geological drill auxiliary clamp according to an embodiment of the present invention;
FIG. 2 is a schematic view of another perspective configuration of the auxiliary clamp of the geological drill bit;
FIG. 3 is a front view of the auxiliary clamp of the geological drill;
FIG. 4 is a cross-sectional view of the auxiliary clamp of the geological drill;
fig. 5 is a cross-sectional view of the geological drill auxiliary jig of the second embodiment.
Reference numbers in the figures: 1. a first connection portion; 2. a second connecting portion; 3. a coal breaking cutter is arranged at the rear part; 31. spraying a hole; 32. a blade; 33. and (6) cutting teeth.
Detailed Description
To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, 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 first embodiment is as follows:
as shown in fig. 1 and 3 in combination with fig. 4, the auxiliary clamp for the geological drill bit comprises a first connecting part 1 for connecting the geological drill bit, a second connecting part 2 for connecting a drill rod, and a rear coal breaking cutter 3; as shown in fig. 3, the left end of the first connecting portion 1 is fixedly connected with the right end of the second connecting portion 2, welding can be adopted, through center holes are formed in the first connecting portion 1 and the second connecting portion 2, and the center hole of the first connecting portion 1 is butted with the center hole of the second connecting portion 2 to form a center channel for flowing water to pass through; the rear coal breaking cutter 3 is arranged outside the first connecting part 1 or the second connecting part 2, and a plurality of spray holes 31 communicated with the central channel are formed in the rear coal breaking cutter 3.
The first connecting part 1, the second connecting part 2 and the rear coal breaking cutter 3 are all made of high-quality wear-resistant steel through casting processing.
As shown in fig. 4, the first connection portion 1 is conical, the right end of the first connection portion 1 is a small end, the left end is a large end, the central hole inside the first connection portion 1 is a cylindrical hole, and the outer surface of the first connection portion 1 has a first thread for connection, in this embodiment, the first thread is an external thread. The first thread is a conical thread, and the taper of the conical thread is set according to requirements.
Because the use occasion has a large amount of high-pressure water, the taper thread is more suitable for the occasion needing sealing on the fluid such as a pipeline, and the thread has taper, so the screwing is more and more tight, and the sealing can be realized. Tapered threads are also preferred in this application.
The surface of the second connecting part 2 is cylindrical, the center hole of the second connecting part 2 is a taper hole, the right end of the center hole of the second connecting part 2 is a small end, the left end of the center hole of the second connecting part 2 is a big end, the center hole is provided with a second thread used for connection, and the second thread is a conical thread. The central axis of the central hole of the first connecting part 1 coincides with the central axis of the central hole of the second connecting part 2, the diameter of the central hole of the first connecting part 1 is the same as the diameter of the small end of the central hole of the second connecting part 2, and the size of the first connecting part 1 is smaller than that of the second connecting part 2.
As shown in fig. 2 and 3, the rear coal breaking cutter 3 includes a blade 32 and a plurality of cutter teeth 33, the blade 32 has a central hole therein, the central hole of the blade 32 is sleeved on the outer wall of the first connection portion 1, and the blade 32 and the outside of the first connection portion 1 can be fixed by welding or bolts, etc. in this embodiment, the rear end (left end in fig. 3) of the blade 32 has two protrusions, the cutter teeth 33 are installed on the side surfaces of the protrusions, and the cutter teeth 33 are fixed on the blade 32 by welding, and when the cutter teeth 33 are worn, the cutter teeth 33 are knocked off, so that they can be replaced with new ones, and the replacement is convenient; the outer surface of the blade 32 is cylindrical, the right side of the blade 32 is provided with a plurality of spray holes 31, and a plurality of cutter teeth 33 are uniformly arranged on the left side of the blade 32; to achieve the communication of the nozzle hole 31 with the central through hole, the first connection portion 1 is provided with a hole communicating with the nozzle hole 31, ensuring the communication of the nozzle hole 31.
The rear coal breaking cutter 3 can be arranged outside the second connecting part 2 or outside the first connecting part 1 and the second connecting part 2;
the rear coal breaking cutter 3 is arranged at a position far away from the drill bit, and the spray holes 31 are arranged at a position close to the drill bit, so that the broken silt or coal slag can be conveniently discharged by high-pressure water.
When the device is used, the first connecting part 1 is connected with an existing geological drill bit, the second connecting part 2 is connected with the bottom end of an existing drill rod, flowing water is injected into the drill bit by using a central hole of the drill rod during drilling, the flowing water enters a coal body cutting part from the drill rod through a central channel, accumulated coal scraps in the hole are stirred in a rotary mode through the rear coal breaking cutter 3 in the rotary process, and the coal scraps are discharged out of a coal bed drilling hole by using high-pressure water sprayed from the spray holes 31, so that the problem of drill jamming in the process of taking out a drilling tool can be effectively prevented, the torque required by the drill rod can be reduced, the coal bed drilling construction efficiency is increased, and the device has the advantages of being simple in structure; the auxiliary clamp for the geological drill bit can also be used for connecting geological drill bits and drill rods with different sizes, and the practicability of the working face coal bed in the drilling process is improved.
Example two:
as shown in fig. 5, the present embodiment is different from the first embodiment in that: the first connection portion 1 and the second connection portion 2 are different in shape.
In this embodiment, the outer surface of the first connection portion 1 is cylindrical, and the first thread is a cylindrical thread. The center hole of the second connecting part 2 is a cylindrical hole, and the second thread is a cylindrical thread.
In the first and second embodiments, the first connecting portion 1 is connected with the geological drill bit through threads, and the second connecting portion 2 is connected with the drill rod through threads, so that the connection is reliable, and the replacement is convenient.
And after the threaded connection, a sealing ring can be added for further sealing according to the requirement.
Example three:
in the first or second embodiment, the nozzle hole 31 is preferably disposed obliquely, and the direction of the inclination is toward the first connection portion 1. The acting force direction of the high-pressure water can be towards the silt or the coal cinder, so that the slag can be discharged conveniently.
The spray holes 31 are arranged in an array along the circumferential direction, so that the stress is more uniform.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; 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 (10)
1. The geological drill auxiliary clamp is characterized by comprising a first connecting part for connecting a geological drill, a second connecting part for connecting a drill rod and a rear coal breaking cutter; one end of the first connecting part is fixedly connected with one end of the second connecting part, through center holes are formed in the first connecting part and the second connecting part, and the center holes of the first connecting part and the second connecting part are butted to form a center channel for flowing water to pass through; the rear coal breaking cutter is arranged outside the first connecting part or the second connecting part and is provided with a plurality of spray holes communicated with the central channel.
2. The auxiliary geological drill bit holder as defined in claim 1, wherein the central bore of the first coupling portion is a cylindrical bore, and the outer surface of the first coupling portion has a first thread for coupling.
3. The geological drill auxiliary clamp of claim 2, wherein the outer surface of the first connection portion is conical, the end adjacent to the second connection portion is a large end, and the first thread is a conical thread.
4. The geological drill auxiliary clamp of claim 2, wherein the outer surface of the first connection portion is cylindrical and the first thread is a cylindrical thread.
5. The geological drill bit auxiliary clamp of claim 1, wherein the outer surface of the second connection portion is a cylindrical second connection portion having a central bore with a second thread for connection.
6. The geological drill auxiliary clamp of claim 5, wherein the central hole of the second connecting portion is a tapered hole, the end near the first connecting portion is a small end, and the second thread is a conical thread.
7. The geological drill bit sub-clamp of claim 5, wherein the central bore of the second connection portion is a cylindrical bore and the second thread is a cylindrical thread.
8. The auxiliary clamp for the geological drill bit according to claim 1, wherein the rear coal breaking cutter comprises a blade and a plurality of cutter teeth, the blade is internally provided with a central hole, the central hole of the blade is sleeved on the outer wall of the first connecting part, one side of the blade is provided with a plurality of spray holes, and the cutter teeth are uniformly arranged on the other side of the blade.
9. The geological drill auxiliary clamp of claim 8, wherein the nozzle holes are arranged obliquely, and the inclination direction is towards the first connecting part.
10. The geological drill auxiliary clamp of claim 8, wherein the orifices are arranged in a circumferential array.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021190360.XU CN212508123U (en) | 2020-06-23 | 2020-06-23 | Auxiliary clamp for geological drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021190360.XU CN212508123U (en) | 2020-06-23 | 2020-06-23 | Auxiliary clamp for geological drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212508123U true CN212508123U (en) | 2021-02-09 |
Family
ID=74439597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021190360.XU Expired - Fee Related CN212508123U (en) | 2020-06-23 | 2020-06-23 | Auxiliary clamp for geological drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212508123U (en) |
-
2020
- 2020-06-23 CN CN202021190360.XU patent/CN212508123U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210209 Termination date: 20210623 |
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| CF01 | Termination of patent right due to non-payment of annual fee |