CN110159212B - Anti-impact pressure relief drill rod self-rotating joint - Google Patents
Anti-impact pressure relief drill rod self-rotating joint Download PDFInfo
- Publication number
- CN110159212B CN110159212B CN201910548876.2A CN201910548876A CN110159212B CN 110159212 B CN110159212 B CN 110159212B CN 201910548876 A CN201910548876 A CN 201910548876A CN 110159212 B CN110159212 B CN 110159212B
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- spray head
- joint
- pontoon
- water spraying
- sleeve
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 74
- 239000007921 spray Substances 0.000 claims abstract description 67
- 210000004907 gland Anatomy 0.000 claims abstract description 12
- 238000005507 spraying Methods 0.000 claims description 56
- 238000007789 sealing Methods 0.000 claims description 4
- 238000002347 injection Methods 0.000 abstract description 10
- 239000007924 injection Substances 0.000 abstract description 10
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000003245 coal Substances 0.000 description 13
- 238000005457 optimization Methods 0.000 description 7
- 238000005065 mining Methods 0.000 description 5
- 238000005553 drilling Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000002817 coal dust Substances 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 239000003034 coal gas Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 206010035653 pneumoconiosis Diseases 0.000 description 1
- 230000009323 psychological health Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000005641 tunneling 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/01—Arrangements for handling drilling fluids or cuttings outside the borehole, e.g. mud boxes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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)
- Joints Allowing Movement (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses an anti-impact pressure-relief drill rod self-rotating joint which comprises a lower connecting pipe, a sleeve, a central pipe, a gland, a retainer ring and an upper joint, wherein the lower connecting pipe is connected with the sleeve; the central tube is embedded in the sleeve and is provided with a boss structure; the upper end and the lower end of the boss structure are respectively provided with a deep groove ball bearing; the check ring is positioned below the deep groove ball bearing at the lower part of the boss structure; the gland is fixed below the retainer ring; the upper end of the lower connecting pipe is connected with the lower end of the sleeve through threads; the lower end of the upper joint is connected with the upper end of the central pipe in a threaded manner, and a first-stage spray head and a second-stage spray head are symmetrically arranged on two sides of the upper joint respectively; the first-stage spray head and the second-stage spray head are respectively provided with a water spray hole, and the water spray holes positioned on the left side are opposite to the water spray holes positioned on the right side. Compared with the prior art, the invention has the beneficial effects that: the device has reliable structure, can regulate the water pressure impact in the joint while self-rotating, and can realize the self-locking function of the inner pipe in the joint after water injection is stopped through the self structural design.
Description
Technical Field
The invention relates to a water injection joint for a mining drilling machine during wet drilling, in particular to an anti-impact pressure relief drill rod self-rotating joint.
Background
Along with the continuous development of technology, the demand of production of a plurality of enterprises for coal is also larger and larger, so that the coal industry is also developing at a high speed, and although the coal production is more and more mechanized, a large amount of coal dust and gas are still generated during the coal mining operation, the hidden danger of explosion exists in the gas, the safe production of the coal mine is seriously restricted, the coal dust endangers the physical health of mining operators, the pneumoconiosis incidence of the coal workers is also higher and higher, and the tunneling working face is the most main dust source place. In recent years, for the physical and psychological health and life safety of coal mine workers, the coal industry has largely explored in the aspect of dust hazard control and also adopts a plurality of dustproof measures, wherein water injection into a coal seam or a coal wall is an active and effective measure for reducing coal dust on a stope face in the coal mining production process, so that the water injection into the coal seam is adopted as an advanced dustproof measure for the domestic coal mine.
When water injection is stopped, water injection backflow or other factors possibly occur in the water injection joint when the existing mining drilling machine performs wet drilling, so that external impurities enter the joint to cause the problem of joint blockage, and meanwhile, the structure of the joint mostly adopts a fixed structure, the injection area and the range of the joint are limited, the self-rotation function cannot be realized, and the water pressure in the water injection joint cannot be controlled.
Disclosure of Invention
The invention aims to provide an anti-impact pressure-relief drill rod self-rotating joint which is characterized by reliable equipment structure, self-rotation and adjustment of water pressure impact in the joint, and in addition, the self-locking function of a pipeline in the joint can be realized after water injection is stopped through the self-structural design.
In order to achieve the above purpose, the present invention provides the following technical solutions: the anti-impact pressure relief drill rod self-rotating joint comprises a lower connecting pipe, a sleeve, a central pipe, a gland, a check ring and an upper joint; the central tube is embedded in the sleeve, and a boss structure is arranged on the part of the central tube embedded in the sleeve; deep groove ball bearings are arranged at the upper end and the lower end of the boss structure; the check ring is positioned below the deep groove ball bearing at the lower part of the boss structure; the gland is fixed below the check ring; the upper end of the lower connecting pipe is connected with the lower end of the sleeve through threads; the lower end of the upper joint is connected with the upper end of the central pipe in a threaded manner, and a first-stage spray head and a second-stage spray head are symmetrically arranged on two sides of the upper joint respectively; water spraying holes are formed in the primary spray head and the secondary spray head; the water spraying holes on the first-stage spray head and the second-stage spray head which are positioned on the left side of the upper joint are opposite to the water spraying holes on the first-stage spray head and the second-stage spray head which are positioned on the right side of the upper joint.
As optimization, the radius of the water spraying hole on the primary spray head is larger than that of the water spraying hole on the secondary spray head.
As optimization, the cross section of the water spraying hole is of an inverted isosceles trapezoid structure.
As optimization, the water spraying hole is internally provided with a spraying device matched with the structure of the water spraying hole; the spraying device comprises a spray head, a reducing rotating rod and a ball seat; the diameter-variable rotating rod is of an inverted cone table structure, the upper end of the diameter-variable rotating rod is connected with the ball seat, and the lower end of the diameter-variable rotating rod is connected with the spray head; the connection part of the lower end of the reducing rotating rod and the upper end of the spray head is clamped and embedded at the opening of the lower end of the water spraying hole; the spray head, the reducing rotating rod and the ball seat are respectively provided with a channel, and the water spraying channels formed by connecting the spray head, the reducing rotating rod and the ball seat are of a reducing structure.
As optimization, a lower pontoon which is jointed with the inner wall of the upper joint is arranged in the upper joint, the lower end of the lower pontoon is of an inverted trapezoid structure and jointed with the joint part of the upper end of the central pipe, the upper end of the lower pontoon is provided with an upper pontoon, and a spring is arranged between the upper pontoon and the lower pontoon; the upper pontoon is attached to the inner wall of the upper joint, and the upper end of the upper pontoon is provided with a threaded rod; the threaded rod penetrates through the top of the upper joint and is connected with threads of the threaded rod; the top of the threaded rod is provided with an adjusting handle.
As optimization, a framework oil seal is arranged between the retainer ring and the gland.
As optimization, a framework oil seal is arranged between the joint of the lower connecting pipe and the central pipe.
As optimization, the joints of the upper pontoon and the lower pontoon and the inner wall of the upper joint are provided with sealing rings.
Compared with the prior art, the invention has the following beneficial effects: the self-rotation function of the joint is realized by optimizing the structural design of the water spraying hole through the water counter-impact force; meanwhile, in order to ensure the consistency of the pressure of the water spraying holes, the design of the radius of the water spraying holes is optimized; secondly, a spraying device is additionally arranged in the water spraying hole, so that the spraying area and range are increased through structural design; finally, the structural design in the upper joint is improved to realize the self-locking function and the water pressure regulating function; the device overall structure is reliable and effective, the practicality is high and sealing performance is good.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural view of the spraying device of the present invention.
The lower connecting pipe 1, the sleeve 2, the central pipe 3, the gland 4, the framework oil seal 5, the retainer ring 6, the deep groove ball bearing 7, the upper joint 8, the upper pontoon 9, the spring 10, the lower pontoon 11, the primary spray head 12, the secondary spray head 13, the water spraying hole 14, the spray head 15, the reducing rotating rod 16, the ball seat 17 and the water spraying channel 18.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. 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.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The anti-impact pressure relief drill rod self-rotating joint comprises a lower connecting pipe 1, a sleeve 2, a central pipe 3, a gland 4, a retainer ring 6 and an upper joint 8; the central tube 3 is embedded in the sleeve 2, and a boss structure is arranged on the part of the central tube 3 embedded in the sleeve 2; the upper end and the lower end of the boss structure are respectively provided with a deep groove ball bearing 7; the check ring 6 is positioned below the deep groove ball bearing 7 at the lower part of the boss structure; the gland 4 is fixed below the retainer ring 6; the upper end of the lower connecting pipe 1 is connected with the lower end of the sleeve 2 through threads; the lower end of the upper joint 8 is connected with the upper end of the central tube 3 through threads, and a first-stage spray head 12 and a second-stage spray head 13 are symmetrically arranged on two sides of the upper joint 8 respectively; the primary spray head 12 and the secondary spray head 13 are in threaded connection, and corresponding spray head structures can be continuously added according to the situation when necessary. Water spray holes 14 are formed in the primary spray head 12 and the secondary spray head 13; the water spraying holes 14 on the first-stage spray head 12 and the second-stage spray head 13 which are positioned on the left side of the upper joint 8 are opposite to the water spraying holes 14 on the first-stage spray head 12 and the second-stage spray head 13 which are positioned on the right side. The self-rotation of the upper joint 8 part is realized by the opposite direction of the water spraying hole 14 and the reverse impact force of water, so that the spray area is increased.
The radius of the water spraying holes 14 on the primary spray head 12 is larger than that of the water spraying holes 14 on the secondary spray head 13. Since the pressure of water is higher at the proximal end than at the distal end, the uniformity of the water jet pressure is achieved by varying the radius.
The cross section of the water spraying hole 14 is of an inverted isosceles trapezoid structure. The inverted isosceles trapezoid structure is adopted to be matched with the spraying device.
The water spraying hole 14 is internally provided with a spraying device matched with the structure of the water spraying hole; the spraying device comprises a spray head 15, a reducing rotating rod 16 and a ball seat 17; the diameter-variable rotating rod 16 is in an inverted cone table structure, the upper end of the diameter-variable rotating rod is connected with the ball seat 17, and the lower end of the diameter-variable rotating rod is connected with the spray head 15; the connection part of the lower end of the reducing rotating rod 16 and the upper end of the spray head 15 is clamped and embedded at the opening of the lower end of the water spraying hole 14; channels are arranged in the spray head 15, the variable-diameter rotating rod 16 and the ball seat 17, and a water spraying channel 18 formed by connecting the spray head 15, the variable-diameter rotating rod 16 and the ball seat 17 is of a variable-diameter structure. Due to the impulse of the water flow and the structural design of the spraying device, the spraying device can move within a certain range in the water spraying hole 14 and spray the water flow out through the water spraying channel 18. The angle between the side wall of the diameter-changing rotary rod 16 and the vertical direction is smaller than the angle between the side wall of the water spraying hole 14 and the vertical direction. This ensures that the entire spray device can be oscillated within the confines of the side wall of the water jet 14. The upper part of the spray head 15 is in a gradually-expanding structure, and the purpose of the spray head is to ensure that the spraying device is clamped and embedded on the water spraying hole 14; meanwhile, the water spraying channel 18 formed by the spray head 15, the variable-diameter rotating rod 16 and the ball seat 17 is of a variable-diameter structure, so that the impact force of water flow is further improved.
A lower pontoon 11 which is jointed with the inner wall of the upper joint 8 is arranged in the upper joint 8, the lower end of the lower pontoon 11 is of an inverted trapezoid structure and jointed with the joint part of the upper end of the central tube 3, the upper end of the lower pontoon 11 is provided with an upper pontoon 9, and a spring 10 is arranged between the upper pontoon and the lower pontoon; the upper pontoon 9 is attached to the inner wall of the upper joint 8, and a threaded rod is arranged at the upper end of the upper pontoon 9; the threaded rod penetrates through the top of the upper joint 8 and is connected with threads of the upper joint; the top of the threaded rod is provided with an adjusting handle.
And a framework oil seal 5 is arranged between the retainer ring 6 and the gland 4. And a framework oil seal 5 is arranged between the joint of the lower connecting pipe 1 and the central pipe 3. Sealing rings are arranged at the joints of the upper pontoon 9 and the lower pontoon 11 and the inner wall of the upper joint 8. The whole tightness of the device is ensured.
The working principle is as follows:
when water flow enters the upper joint 8 through the lower connecting pipe 1 and the central pipe 3, the lower pontoon 11 is extruded to move upwards due to the pressure of water pressure, so that the water flow enters the first-stage spray head 12 and the second-stage spray head 13, the ball seat 17 on the spraying device is driven to move due to the impulsive force of the water flow, and the water flow is sprayed outwards through the water spraying channel 18 to be discharged. At the same time, the adjusting handle at the upper end of the upper pontoon 9 can be rotated to change the jet pressure of the water flow by using the threaded rod. The adjusting handle can specifically design a matched driving motor to realize remote control.
After the operation is stopped, the lower pontoon 11 is extruded to the joint with the upper end of the central tube 3 by the reaction force of the spring 10 due to the disappearance of the water flow pressure, and the self-closing effect is realized due to the bonding of the two structures.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. 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.
Claims (5)
1. Anti-collision pressure relief drill rod self-rotating joint, its characterized in that: comprises a lower connecting pipe (1), a sleeve (2), a central pipe (3), a gland (4), a retainer ring (6) and an upper joint (8); the central tube (3) is embedded in the sleeve (2), and a boss structure is arranged on the part of the central tube (3) embedded in the sleeve (2); the upper end and the lower end of the boss structure are respectively provided with a deep groove ball bearing (7); the check ring (6) is positioned below the deep groove ball bearing (7) at the lower part of the boss structure; the gland (4) is fixed below the retainer ring (6); the upper end of the lower connecting pipe (1) is connected with the lower end of the sleeve (2) through threads; the lower end of the upper joint (8) is connected with the upper end of the central tube (3) through threads, and a first-stage spray head (12) and a second-stage spray head (13) are symmetrically arranged on two sides of the upper joint (8) respectively; water spraying holes (14) are formed in the primary spray head (12) and the secondary spray head (13); the water spraying holes (14) on the first-stage spray head (12) and the second-stage spray head (13) which are positioned on the left side of the upper joint (8) are opposite to the water spraying holes (14) on the first-stage spray head (12) and the second-stage spray head (13) which are positioned on the right side;
a spraying device matched with the structure of the water spraying hole (14) is arranged in the water spraying hole; the spraying device comprises a spray head (15), a reducing rotating rod (16) and a ball seat (17); the diameter-variable rotating rod (16) is of an inverted cone table structure, the upper end of the diameter-variable rotating rod is connected with the ball seat (17), and the lower end of the diameter-variable rotating rod is connected with the spray head (15); the connection part of the lower end of the reducing rotating rod (16) and the upper end of the spray head (15) is clamped and embedded at the opening of the lower end of the water spraying hole (14); channels are arranged in the spray head (15), the diameter-variable rotating rod (16) and the ball seat (17), and a water spraying channel (18) formed by connecting the spray head (15), the diameter-variable rotating rod (16) and the ball seat is of a diameter-variable structure;
a lower pontoon (11) which is attached to the inner wall of the upper joint (8) is arranged in the upper joint (8), the lower end of the lower pontoon (11) is of an inverted trapezoid structure and is attached to the joint part of the upper end of the central tube (3), the upper end of the lower pontoon (11) is provided with an upper pontoon (9), and a spring (10) is arranged between the upper pontoon and the lower pontoon; the upper pontoon (9) is attached to the inner wall of the upper joint (8), and a threaded rod is arranged at the upper end of the upper pontoon (9); the threaded rod penetrates through the top of the upper joint (8) and is connected with threads of the upper joint; the top end of the threaded rod is provided with an adjusting handle; sealing rings are arranged at the joints of the upper pontoon (9) and the lower pontoon (11) and the inner wall of the upper joint (8).
2. The anti-impact pressure relief drill pipe self-rotating joint according to claim 1, wherein: the radius of the water spraying hole (14) on the primary spray head (12) is larger than that of the water spraying hole (14) on the secondary spray head (13).
3. The impact and pressure relief drill pipe self-rotating joint according to claim 2, wherein: the cross section of the water spraying hole (14) is of an inverted isosceles trapezoid structure.
4. The anti-impact pressure relief drill pipe self-rotating joint according to claim 1, wherein: a framework oil seal (5) is arranged between the retainer ring (6) and the gland (4).
5. The anti-impact pressure relief drill pipe self-rotating joint according to claim 1, wherein: a framework oil seal (5) is arranged between the joint of the lower connecting pipe (1) and the central pipe (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910548876.2A CN110159212B (en) | 2019-06-24 | 2019-06-24 | Anti-impact pressure relief drill rod self-rotating joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910548876.2A CN110159212B (en) | 2019-06-24 | 2019-06-24 | Anti-impact pressure relief drill rod self-rotating joint |
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| Publication Number | Publication Date |
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| CN110159212A CN110159212A (en) | 2019-08-23 |
| CN110159212B true CN110159212B (en) | 2024-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910548876.2A Active CN110159212B (en) | 2019-06-24 | 2019-06-24 | Anti-impact pressure relief drill rod self-rotating joint |
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| CN (1) | CN110159212B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114097536B (en) * | 2020-08-27 | 2023-07-28 | 临沂瑞泽生物科技股份有限公司 | Integrated device for spraying and irrigating agaricus bisporus |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102465712A (en) * | 2010-11-15 | 2012-05-23 | 湖南汉寿中煤科技有限公司 | Drilling-cutting-linked coal layer gas drainage and outburst prevention system and method based on ultra-long drilling and high-pressure water jetting |
| CN102619469A (en) * | 2012-04-13 | 2012-08-01 | 辽宁工程技术大学 | Device for hole drilling, seam cutting and pressure relief of coal seam |
| CN210264596U (en) * | 2019-06-24 | 2020-04-07 | 邹城兖矿泰德工贸有限公司 | Self-rotating adapter of anti-impact pressure-relief drill rod |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017028645A1 (en) * | 2015-08-18 | 2017-02-23 | 山东大学 | Anti-collapse two-way rib wing jet grouting drill, grouting consolidation system and method |
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2019
- 2019-06-24 CN CN201910548876.2A patent/CN110159212B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102465712A (en) * | 2010-11-15 | 2012-05-23 | 湖南汉寿中煤科技有限公司 | Drilling-cutting-linked coal layer gas drainage and outburst prevention system and method based on ultra-long drilling and high-pressure water jetting |
| CN102619469A (en) * | 2012-04-13 | 2012-08-01 | 辽宁工程技术大学 | Device for hole drilling, seam cutting and pressure relief of coal seam |
| CN210264596U (en) * | 2019-06-24 | 2020-04-07 | 邹城兖矿泰德工贸有限公司 | Self-rotating adapter of anti-impact pressure-relief drill rod |
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| CN110159212A (en) | 2019-08-23 |
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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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