CN110219602B - Triangular drill rod special for anti-impact pressure relief - Google Patents
Triangular drill rod special for anti-impact pressure relief Download PDFInfo
- Publication number
- CN110219602B CN110219602B CN201910626034.4A CN201910626034A CN110219602B CN 110219602 B CN110219602 B CN 110219602B CN 201910626034 A CN201910626034 A CN 201910626034A CN 110219602 B CN110219602 B CN 110219602B
- Authority
- CN
- China
- Prior art keywords
- pressure relief
- channel
- rod body
- connecting part
- thread connecting
- Prior art date
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- 238000000034 method Methods 0.000 claims description 5
- 238000011010 flushing procedure Methods 0.000 claims 1
- 239000002893 slag Substances 0.000 abstract description 27
- 238000007599 discharging Methods 0.000 abstract description 18
- 238000005553 drilling Methods 0.000 abstract description 9
- 239000012530 fluid Substances 0.000 abstract description 7
- 239000003245 coal Substances 0.000 description 8
- 238000004401 flow injection analysis Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/042—Threaded
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/18—Pipes provided with plural fluid passages
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention belongs to the technical field of drill rods, and particularly relates to a triangular drill rod special for anti-impact pressure relief; the main body structure comprises a hollow rod body, an external thread connecting part, an internal thread connecting part, an air inlet channel and a pressure relief channel; the two ends of the rod body are respectively provided with an external thread connecting part and an internal thread connecting part; an air inlet channel and a pressure relief channel are arranged in the rod body; an auxiliary channel is arranged on one side of the pressure relief channel, which is away from the air inlet channel; the auxiliary channel is of a convex structure and is communicated with the pressure relief channel; the auxiliary channel is internally provided with buffer springs, each buffer spring comprises four groups, and each group of buffer springs is arranged up and down symmetrically; the outer side surface of the rod body is provided with a plurality of first pressure relief holes which form a spiral direction and are opposite to the rotation direction of the rod body during drilling, and the first pressure relief holes are communicated with the pressure relief channel and the auxiliary channel; has stronger slag discharging capability, and simultaneously effectively protects the rod body, thereby avoiding damage to the inner wall of the rod body caused by overlarge impact force of slag discharging fluid.
Description
Technical Field
The invention belongs to the technical field of drill rods, and particularly relates to a triangular drill rod special for anti-impact pressure relief.
Background
The structure form of the common drill rod in China is mainly smooth drill rod. Rib drill rod, triangular drill rod. The triangular pyramid-shaped rod body adopts a triangular pyramid-shaped structure, has the characteristics of energy conservation and high efficiency in production and use, is widely applied to deep hole water exploration and gas extraction drilling construction of hard rock layers and coal rocks in coal mine tunnels, provides a high-efficiency drilling tool for the security management work such as tunnel deep hole drilling and gas drainage of high-rise mines, and can also be applied to ground drilling construction work of foundation construction works such as highways and railways. In order to enable the drill rod to have the capability of easily discharging slag in the working process, chinese patent CN201810488034.8 discloses a slag discharging drill rod in a protection hole pressure relief, which comprises a hollow rod body, a flow injection pipe coaxially arranged in the rod body, and a support piece for connecting the rod body and the flow injection pipe, wherein a slag discharging channel is arranged between the inner wall of the rod body and the outer wall of the flow injection pipe, an air inlet channel and a water inlet channel are arranged in the flow injection pipe, the direction opposite to the rotation direction of the drill rod body during drilling is reverse, a spiral groove which ascends reversely in a cylindrical spiral shape is formed in the outer cylindrical surface of the rod body, and a plurality of pressure discharging holes communicated with the cavity in the rod body are formed in the spiral groove. When the soft coal seam and the outstanding coal seam are drilled, the method has the advantages of strong hole protection capability, difficult blockage of a slag discharging channel, good hole forming effect, strong slag discharging and cooling capability and automatic dredging of a hole collapse region. However, when the slag discharge amount is large, the slag discharge channel cannot timely discharge slag discharge fluid, blockage is easy to form, slag discharge impacts the inner wall of the rod body greatly, and the rod body cannot be better protected.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides the triangular drill rod special for anti-impact pressure relief, which has strong slag discharging capability, and can effectively protect a rod body and avoid damage to the inner wall of the rod body caused by excessive impact force of slag discharging fluid.
The invention relates to a special triangular drill rod for anti-impact pressure relief, which comprises a hollow rod body, an external thread connecting part, an internal thread connecting part, an air inlet channel and a pressure relief channel, wherein the hollow rod body is provided with a hollow cavity; the two ends of the rod body are respectively provided with an external thread connecting part and an internal thread connecting part; an air inlet channel and a pressure relief channel are arranged in the rod body; an auxiliary channel is arranged on one side of the pressure relief channel, which is away from the air inlet channel; the auxiliary channel is of a convex structure and is communicated with the pressure relief channel; the auxiliary channel is internally provided with buffer springs, each buffer spring comprises four groups, and each group of buffer springs is arranged up and down symmetrically; the outer side surface of the rod body is provided with a plurality of first pressure relief holes which form a spiral direction and are communicated with the pressure relief channel and the auxiliary channel in the opposite direction to the rotation direction of the rod body when the rod body is drilled.
Further, the auxiliary channels comprise three auxiliary channels which are respectively arranged in the edges and corners of the rod body and are communicated with the pressure relief channels.
Further, the adjacent rod bodies are connected through an external thread connecting part and an internal thread connecting part.
Further, the first pressure relief hole is a circular hole.
The beneficial effects of the invention are as follows: compared with the prior art, the auxiliary channel with the convex structure and the buffer spring can slow down the impact of slag discharging fluid on the inner wall of the rod body, and play a role in protecting the drill rod; the movable valve body and the supporting ribs are arranged, so that the slag discharging process is not influenced, and slag discharging is prevented from being continuously filled in the pressure relief channel downwards when the drilled holes collapse, and blockage is prevented; the whole structure is reasonable in design and strong in adaptability.
Drawings
Fig. 1 is a front view of embodiment 1;
FIG. 2 is a schematic longitudinal cross-sectional view of example 1;
FIG. 3 is a schematic view of a cross section in the A-A direction of example 1;
FIG. 4 is a schematic longitudinal cross-sectional view of example 2;
FIG. 5 is an enlarged view of the supporting rib structure of example 2;
FIG. 6 is an enlarged view of the structure of the movable valve body of embodiment 2;
the device comprises a rod body 1, an external threaded connecting part 2, an internal threaded connecting part 3, an air inlet channel 4, a pressure relief channel 5, an auxiliary channel 6, a buffer spring 7, a first pressure relief hole 8, a corner 9, a second pressure relief hole 10, a movable valve body 11, a supporting rib 12 and a through hole 13.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
The invention will now be further illustrated by means of specific examples in connection with the accompanying drawings.
Example 1
The embodiment relates to a special triangular drill rod for anti-impact pressure relief, which comprises a hollow rod body 1, an external thread connecting part 2, an internal thread connecting part 3, an air inlet channel 4 and a pressure relief channel 5; the two ends of the rod body 1 are respectively provided with an external thread connecting part 2 and an internal thread connecting part 3; an air inlet channel 4 and a pressure relief channel 5 are arranged in the rod body 1; an auxiliary channel 6 is arranged on one side of the pressure relief channel 5 away from the air inlet channel 4; the auxiliary channel 6 is of a convex structure and is communicated with the pressure relief channel 5; the auxiliary channel 6 is internally provided with buffer springs 7, the buffer springs 7 comprise four groups, and each group of buffer springs 7 are arranged up and down symmetrically; the outer side surface of the rod body 1 is provided with a plurality of first pressure relief holes 8, the first pressure relief holes 8 form a spiral direction, and the first pressure relief holes 8 are communicated with the pressure relief channel 5 and the auxiliary channel 6 in the opposite direction to the rotation direction of the rod body 1 during drilling.
The auxiliary channels 6 in this embodiment include three auxiliary channels respectively disposed in the corners 9 of the rod body 1 and all connected to the pressure relief channels 5.
The adjacent rod bodies 1 in the embodiment are connected through an external thread connecting part 2 and an internal thread connecting part 3.
The first pressure relief hole 8 in this embodiment is a circular hole.
When the drill rod is used, slag discharging fluid enters the bottom of a drill hole through the air inlet channel 4, coal slag is carried to be discharged out of the drill hole through the pressure relief channel 5 and the auxiliary channel 6, the slag discharging capacity of the drill rod is improved through the auxiliary channel 6, the impact of the slag discharging fluid on the inner wall of the rod body 1 is effectively relieved, meanwhile, the buffer spring 7 is further arranged in the auxiliary channel 6, the impact of the slag discharging fluid on the inner wall of the rod body 1 is further relieved, the drill rod 1 is protected, when the drill hole collapses, the coal slag around the rod body 1 enters the pressure relief channel 5 and the auxiliary channel 6 through the first pressure relief hole 8, the buffer spring 7 in the auxiliary channel 6 plays a certain buffering and limiting role when the coal slag enters the auxiliary channel 6, when the drill hole collapses, the slag discharging can enter the pressure relief channel 5 and the auxiliary channel 6, the acting force of the coal slag on the drill rod is released, the inner wall of the rod body 1 is not damaged, the pressure relief channel 5 and the auxiliary channel 6 are prevented from being filled with slag instantaneously, and a blocking phenomenon is caused.
Example 2
The embodiment relates to a special triangular drill rod for anti-impact pressure relief, which comprises a hollow rod body 1, an external thread connecting part 2, an internal thread connecting part 3, an air inlet channel 4 and a pressure relief channel 5; the two ends of the rod body 1 are respectively provided with an external thread connecting part 2 and an internal thread connecting part 3; an air inlet channel 4 and a pressure relief channel 5 are arranged in the rod body 1; a first pressure relief hole 6 is formed in one end, close to the external thread connecting part 2, of the rod body 1; the first pressure relief hole 6 is communicated with the pressure relief channel 5; an auxiliary channel 6 is arranged on one side of the pressure relief channel 5 away from the air inlet channel 4; the auxiliary channel 6 is of a convex structure and is communicated with the pressure relief channel 5; the auxiliary channel 6 is internally provided with buffer springs 7, the buffer springs 7 comprise four groups, and each group of buffer springs 7 are arranged up and down symmetrically; the outer side surface of the rod body 1 is provided with a plurality of first pressure relief holes 8, the first pressure relief holes 8 form a spiral direction, and the first pressure relief holes 8 are communicated with the pressure relief channel 5 and the auxiliary channel 6 in the opposite direction to the rotation direction of the rod body 1 when drilling holes; a second pressure relief hole 10 is formed in one side, close to the external thread connecting part 2, of the rod body 1, and the second pressure relief hole 10 is communicated with the pressure relief channel 5; the pressure relief channel 5 is internally provided with a movable valve body 11 and a supporting rib 12, the supporting rib 12 is positioned between the second pressure relief hole 10 and the auxiliary channel 6, the movable valve body 11 can move up and down in the pressure relief channel 5, and the supporting rib 12 is used for supporting the movable valve body 11 and is attached to the contact part of the movable valve body 11, so that the movable valve body 11 can block the supporting rib 12 in a natural state.
The supporting rib 12 in this embodiment is a hollow truncated cone structure, the upper edge of the supporting rib is fixedly connected with the inner wall of the pressure relief channel 5, the movable valve body 11 is a truncated cone structure matched with the supporting rib 12, the center of the movable valve body 11 is provided with a through hole 13, and the outer wall of the air inlet channel 4 passes through the through hole 13.
The movable valve body 11 in the embodiment is made of a light impact-resistant composite material, so that the movable valve body 11 can be flushed by slag, is impact-resistant and prevents the movable valve body 11 from being damaged.
The auxiliary channels 6 in this embodiment include three auxiliary channels respectively disposed in the corners 9 of the rod body 1 and all connected to the pressure relief channels 5.
The adjacent rod bodies 1 in the embodiment are connected through an external thread connecting part 2 and an internal thread connecting part 3.
The first pressure relief hole 8 in this embodiment is a circular hole.
The movable valve body 11 is located on the supporting rib 12 in the natural state, and can just block the supporting rib 12, when deslagging, deslagging enters the pressure relief channel 5, the movable valve body 11 is upwards punched to prevent the deslagging process from being influenced, when the drilling hole collapses, deslagging enters the pressure relief channel 5 and the auxiliary channel 6, at the moment, the movable valve body 11 blocks the supporting rib 12, deslagging is prevented from continuously filling the pressure relief channel 5 downwards, and blocking is prevented.
The foregoing embodiments are merely examples of the present invention, and the scope of the present invention includes, but is not limited to, the forms and styles of the foregoing embodiments, and any suitable changes or modifications made by those skilled in the art, which are consistent with the claims of the present invention, shall fall within the scope of the present invention.
Claims (4)
1. The special triangular drill rod for anti-flushing and pressure relief comprises a main body structure, wherein the main body structure comprises a hollow rod body (1), an external thread connecting part (2), an internal thread connecting part (3), an air inlet channel (4) and a pressure relief channel (5); two ends of the rod body (1) are respectively provided with an external thread connecting part (2) and an internal thread connecting part (3); an air inlet channel (4) and a pressure relief channel (5) are arranged in the rod body (1); the method is characterized in that: an auxiliary channel (6) is arranged on one side of the pressure relief channel (5) away from the air inlet channel (4); the auxiliary channel (6) is of a convex structure and is communicated with the pressure relief channel (5); buffer springs (7) are arranged in the auxiliary channels (6), the buffer springs (7) comprise four groups, and each group of buffer springs (7) are arranged symmetrically up and down; the outer side surface of the rod body (1) is provided with a plurality of first pressure relief holes (8), the first pressure relief holes (8) form a spiral direction, and the first pressure relief holes (8) are communicated with the pressure relief channel (5) and the auxiliary channel (6) in the opposite rotation direction when the rod body (1) is drilled;
a second pressure relief hole (10) is formed in one side, close to the external thread connecting part (2), of the rod body (1), and the second pressure relief hole (10) is communicated with the pressure relief channel (5); the pressure relief channel (5) is internally provided with a movable valve body (11) and a supporting rib (12), the supporting rib (12) is positioned between the second pressure relief hole (10) and the auxiliary channel (6), the movable valve body (11) can move up and down in the pressure relief channel (5), and the supporting rib (12) is used for supporting the movable valve body (11) and is attached to the contact part of the movable valve body (11);
the auxiliary channels (6) comprise three auxiliary channels which are respectively arranged in the edges (9) of the rod body (1) and are communicated with the pressure relief channels (5).
2. The impact-resistant pressure-relieving special triangular drill rod as set forth in claim 1, wherein: the supporting rib (12) is of a hollow round platform structure, the upper side edge of the supporting rib is fixedly connected with the inner wall of the pressure relief channel (5), the movable valve body (11) is of a round platform structure matched with the supporting rib (12), the center of the movable valve body (11) is provided with a through hole (13), and the outer wall of the air inlet channel (4) penetrates through the through hole (13).
3. The impact-resistant pressure-relieving special triangular drill rod as set forth in claim 1, wherein: the adjacent rod bodies (1) are connected through an external thread connecting part (2) and an internal thread connecting part (3).
4. The impact-resistant pressure-relieving special triangular drill rod as set forth in claim 1, wherein: the first pressure relief hole (8) is a circular hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910626034.4A CN110219602B (en) | 2019-07-11 | 2019-07-11 | Triangular drill rod special for anti-impact pressure relief |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910626034.4A CN110219602B (en) | 2019-07-11 | 2019-07-11 | Triangular drill rod special for anti-impact pressure relief |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110219602A CN110219602A (en) | 2019-09-10 |
| CN110219602B true CN110219602B (en) | 2024-01-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910626034.4A Active CN110219602B (en) | 2019-07-11 | 2019-07-11 | Triangular drill rod special for anti-impact pressure relief |
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| Country | Link |
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| CN (1) | CN110219602B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203796182U (en) * | 2014-03-27 | 2014-08-27 | 王海峰 | Triangular-ribbed drill pipe for coal mine gallery drilling and drilling mud removal |
| CN108798540A (en) * | 2018-05-21 | 2018-11-13 | 河南理工大学 | Spiral convex rib cuts deslagging drilling rod in the release of hole |
| CN108868660A (en) * | 2018-07-10 | 2018-11-23 | 河南理工大学 | Split type coal mine Three-edged drill stem centralizer |
| CN208633786U (en) * | 2018-07-11 | 2019-03-22 | 江阴市好运来石油机械有限公司 | A kind of petroleum geology exploration efficient stable boring rod set |
| CN210370526U (en) * | 2019-07-11 | 2020-04-21 | 邹城兖矿泰德工贸有限公司 | Three-edge drill rod special for preventing impact and relieving pressure |
-
2019
- 2019-07-11 CN CN201910626034.4A patent/CN110219602B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203796182U (en) * | 2014-03-27 | 2014-08-27 | 王海峰 | Triangular-ribbed drill pipe for coal mine gallery drilling and drilling mud removal |
| CN108798540A (en) * | 2018-05-21 | 2018-11-13 | 河南理工大学 | Spiral convex rib cuts deslagging drilling rod in the release of hole |
| CN108868660A (en) * | 2018-07-10 | 2018-11-23 | 河南理工大学 | Split type coal mine Three-edged drill stem centralizer |
| CN208633786U (en) * | 2018-07-11 | 2019-03-22 | 江阴市好运来石油机械有限公司 | A kind of petroleum geology exploration efficient stable boring rod set |
| CN210370526U (en) * | 2019-07-11 | 2020-04-21 | 邹城兖矿泰德工贸有限公司 | Three-edge drill rod special for preventing impact and relieving pressure |
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| Publication number | Publication date |
|---|---|
| CN110219602A (en) | 2019-09-10 |
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Address after: 272000 West Section of West Outer Ring Road, Zoucheng City, Jining City, Shandong Province Applicant after: Shandong Yanneng Taide Heavy Industry Co.,Ltd. Address before: 273500 west of middle section of West Outer Ring Road, Zoucheng City, Jining City, Shandong Province Applicant before: ZOUCHENG YANKUANG TAIDE INDUSTRY & TRADE Co.,Ltd. |
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