CN213039220U - Novel flushing type bedrock drill bit - Google Patents
Novel flushing type bedrock drill bit Download PDFInfo
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- CN213039220U CN213039220U CN202021787981.6U CN202021787981U CN213039220U CN 213039220 U CN213039220 U CN 213039220U CN 202021787981 U CN202021787981 U CN 202021787981U CN 213039220 U CN213039220 U CN 213039220U
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Abstract
The utility model discloses a novel flushing bedrock drill bit, which comprises a drill bit body, wherein the bottom of the drill bit body is provided with a cutting device, the middle of the drill bit body is provided with a central tube, and the lower part of the central tube is provided with a suction port; the drill bit body is also provided with a high-pressure slurry channel, and a slurry outlet at the bottom of the high-pressure slurry channel faces to the working surface of the cutting device; the absorption port is used for absorbing large and small broken rock blocks cut by the cutting device. The utility model discloses arrange the high-pressure mud passageway on the drill bit to set up high-pressure mud dispersion spray tube bottom the drill bit. The ground high-pressure slurry pump enters the filtered clean slurry into the dispersion spray pipe through the high-pressure slurry channel and conveys the clean slurry to the working surface of each hob at the bottom of the drill bit. Under the high-pressure slurry washing, the rock blocks precipitated at the bottom of the hole float in the slurry, so that the cutting edge of the hob cuts and breaks on a new rock surface, the broken rock blocks are prevented from being repeatedly ground, the drilling efficiency is improved, and the energy is saved.
Description
Technical Field
The utility model relates to a well drilling method sinking construction technical field especially relates to a novel washout basement rock drill bit.
Background
The shaft sinking method by the drilling method is one of mature and reliable special shaft sinking construction methods for shaft construction of a vertical shaft, is mainly used for solving the problems of unstable stratum of a fourth series deep impact layer and vertical shaft construction of a stratum with rich water, has the advantages of high degree of mechanization, good well forming quality, low labor intensity, safety, reliability and the like, and is widely applied to the middle east region of China. In the drilling construction, the drill bit breaks rock repeatedly. The method specifically comprises the following steps: in the drilling construction process, the conventional drill bit enables the cut small-volume drilling slag to enter a suction port along with slurry and be discharged through a central pipe; the large-volume drilling slag sinks at the bottom of the hole, the drill bit continues to cut on the large-volume drilling slag, the large-volume drilling slag is ground into small volume and enters the suction port, the small-volume drilling slag is discharged through the central pipe, a new rock face is exposed, and the drill bit continues to crush on the new rock face. In the whole process, the drill bit breaks rock repeatedly, the drilling efficiency is low, and energy is wasted.
Based on the above, a novel washdown bedrock drill bit capable of avoiding repeated rock breaking, further improving the drilling speed, reducing the abrasion of the drill bit, saving energy and keeping the technical advantages of well drilling and well sinking by a drilling method is researched.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a can avoid repeated broken rock, further improve drilling speed, reduce drill bit wearing and tearing, energy saving and keep the novel washout bedrock drill bit of the technical advantage of drilling method sinking with the phase.
The utility model discloses a following technical scheme solves above-mentioned technical problem:
a novel flushing type bedrock drill bit comprises a drill bit body, wherein a cutting device is arranged at the bottom of the drill bit body, a central tube is arranged in the middle of the drill bit body, and a suction port is formed in the lower portion of the central tube; the drill bit body is also provided with a high-pressure slurry channel, and a slurry outlet at the bottom of the high-pressure slurry channel faces to the working surface of the cutting device; the absorbing port is used for absorbing large and small crushed rock blocks cut by the cutting device.
As one of the preferred modes of the utility model, the grout outlet includes a plurality of high-pressure mud dispersion spray tube, and every high-pressure mud dispersion spray tube is towards cutting device's operation face.
As one of the preferable modes of the present invention, the cutting device is specifically a plurality of hob devices.
As one of the preferable modes of the utility model, the upper portions of the central pipe and the high-pressure slurry channel are hermetically connected through the flange plate.
As one of the preferable modes of the utility model, the periphery of the drill bit body is provided with an inner steel drum and an outer steel drum.
As one of the preferable modes of the present invention, the outer side of the outer steel drum is further provided with a wear-resisting plate.
The utility model discloses compare prior art's advantage and lie in: the utility model discloses arrange the high-pressure mud passageway on the drill bit to set up high-pressure mud dispersion spray tube bottom the drill bit. The ground high-pressure slurry pump enters the filtered clean slurry into the dispersion spray pipe through the high-pressure slurry channel and conveys the clean slurry to the working surface of each hob at the bottom of the drill bit. Under the high-pressure slurry washing, the rock blocks precipitated at the bottom of the hole float in the slurry, so that the cutting edge of the hob cuts and breaks on a new rock surface, the broken rock blocks are prevented from being repeatedly ground, the drilling efficiency is improved, and the energy is saved.
Drawings
Fig. 1 is a schematic structural diagram of a novel washrock bit in an embodiment.
Detailed Description
The embodiments of the present invention will be described in detail below, and the present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
Example 1
Referring to fig. 1: the embodiment discloses a novel flushing type bedrock drill bit, which comprises a drill bit body 1, wherein a cutting device 2 is arranged at the bottom of the drill bit body 1, a central tube 3 is arranged in the middle of the drill bit body 1, and a suction port 301 is arranged at the lower part of the central tube 3; the drill bit body 1 is also provided with a high-pressure slurry channel 4, and a slurry outlet at the bottom of the high-pressure slurry channel 4 faces to the working surface of the cutting device 2; the suction port 301 is used for absorbing large and small rock fragments cut by the cutting device 2.
It can be understood that this embodiment passes through high-pressure mud channel output high-pressure mud, and the big or small detritus stone piece of cutting all erodees the drainage through high-pressure mud to discharge through inhaling the binding off, effectively reduce the rock deposit, prevent that cutting device from repeatedly breaking rock, improve cutting efficiency.
Further, the slurry outlet comprises a plurality of high-pressure slurry dispersing spray pipes 401, and each high-pressure slurry dispersing spray pipe 401 faces the working surface of the cutting device 2.
It should be noted that in the present embodiment, a high-pressure slurry channel is arranged on the drill bit, and a high-pressure slurry dispersion nozzle is arranged at the bottom of the drill bit. And (3) the filtered clean slurry enters the dispersion spray pipe through a high-pressure slurry channel by a ground high-pressure slurry pump, and the clean slurry is conveyed to the working surface of each hob at the bottom of the drill bit. Under the high-pressure mud washing, deposit in the bottom of the hole rock piece and float in mud, through inhaling binding off and center tube discharge, the hobbing cutter cutting edge cuts the breakage on new rock face from this, avoids the repeated grinding of broken rock piece, improves and creeps into efficiency, the energy saving.
In a specific example, the cutting device 2 is embodied as a plurality of hob devices, and the central tube 3 and the upper part of the high-pressure slurry channel 4 are hermetically connected by a flange 5.
The central pipe and the upper part of the high-pressure slurry channel are communicated with the external connection pump through the flange plate, so that the sealing performance of the embodiment is enhanced, and slurry leakage is prevented.
Further, the periphery of the drill bit body 1 is provided with an inner steel drum 6 and an outer steel drum 7, and the outer side of the outer steel drum 7 is also provided with a wear-resisting plate 8.
In summary, in this embodiment, the high-pressure slurry pump on the ground conveys the filtered clean slurry to each hob working surface at the bottom of the drill bit through the channels pre-embedded in the drill rod and the drill bit through the high-pressure slurry channel, and the clean slurry is precipitated in the bottom rock block floating in the slurry under the washing of the high-pressure slurry, so that the cutting edge of the hob cuts and breaks on a new rock surface, thereby avoiding the broken rock block from being repeatedly ground, improving the drilling efficiency and saving energy.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. A novel flushing type bedrock drill bit is characterized by comprising a drill bit body (1), wherein a cutting device (2) is arranged at the bottom of the drill bit body (1), a central tube (3) is arranged in the middle of the drill bit body (1), and a suction opening (301) is formed in the lower part of the central tube (3); the drill bit body (1) is also provided with a high-pressure slurry channel (4), and a slurry outlet at the bottom of the high-pressure slurry channel (4) faces to the working surface of the cutting device (2); the suction port (301) is used for absorbing large and small rock fragments cut by the cutting device (2).
2. A new washdown bedrock drill bit according to claim 1, characterised in that the outlet comprises several high pressure slurry dispersion lances (401), each high pressure slurry dispersion lance (401) facing the working face of the cutting device (2).
3. A new type of washdown bedrock drill bit according to claim 1, characterized in that the cutting device (2) is embodied as a number of hob devices.
4. A novel washdown bedrock drill bit according to claim 1, characterised in that the upper part of the central tube (3) and the high-pressure mud channel (4) are sealingly connected by a flange (5).
5. A novel flushing bedrock drill bit according to claim 1, characterized in that the periphery of the drill bit body (1) is provided with an inner steel barrel (6), an outer steel barrel (7).
6. A novel washdown bedrock drill bit according to claim 5, characterized in that the outer side of the outer steel drum (7) is further provided with a wear plate (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021787981.6U CN213039220U (en) | 2020-08-24 | 2020-08-24 | Novel flushing type bedrock drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021787981.6U CN213039220U (en) | 2020-08-24 | 2020-08-24 | Novel flushing type bedrock drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213039220U true CN213039220U (en) | 2021-04-23 |
Family
ID=75532460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021787981.6U Active CN213039220U (en) | 2020-08-24 | 2020-08-24 | Novel flushing type bedrock drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213039220U (en) |
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2020
- 2020-08-24 CN CN202021787981.6U patent/CN213039220U/en active Active
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