CN110259391B - Forward and reverse rotation large torque transmission device - Google Patents
Forward and reverse rotation large torque transmission device Download PDFInfo
- Publication number
- CN110259391B CN110259391B CN201910663105.8A CN201910663105A CN110259391B CN 110259391 B CN110259391 B CN 110259391B CN 201910663105 A CN201910663105 A CN 201910663105A CN 110259391 B CN110259391 B CN 110259391B
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- CN
- China
- Prior art keywords
- hexagonal
- sleeve
- reducer
- connecting sleeve
- drilling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 14
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 35
- 238000005553 drilling Methods 0.000 claims abstract description 24
- 239000000498 cooling water Substances 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 6
- 239000003245 coal Substances 0.000 abstract description 6
- 238000005065 mining Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract 2
- 238000010276 construction Methods 0.000 description 5
- 239000011435 rock Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- 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
- E21B17/0426—Threaded with a threaded cylindrical portion, e.g. for percussion rods
-
- 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
- E21B17/046—Couplings; joints between rod or the like and bit or between rod and rod or the like with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet catches
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 discloses a forward and reverse rotation high-torque transmission device, and belongs to the technical field of coal mine exploitation machinery. The device consists of a drill bit tail, a reducer sleeve, a hexagonal connecting sleeve and an elastic retainer ring for a shaft, wherein a first external hexagonal and a second external hexagonal are arranged on the outer walls of the drill bit tail and the reducer sleeve, an internal hexagonal I is axially arranged in the hexagonal connecting sleeve, the first external hexagonal and the second external hexagonal are sleeved in the internal hexagonal I on the inner surface of the hexagonal connecting sleeve, one end of the drill bit tail is connected with a drilling machine, the other end of the drill bit tail is provided with a left-handed wave-shaped female thread and is matched with a wave-shaped male thread at one end of the reducer sleeve, and the inner cavity of the drill bit tail is provided with a cooling water channel; the middle of the reducer sleeve is provided with an installation groove of the elastic retainer ring for the shaft, and the elastic retainer ring for the shaft is arranged in the installation groove. The invention has the advantages of good sealing performance, strong impact resistance, capability of bearing large torque transmission and the like; the drilling device is suitable for various working conditions and the use requirements of the drilling tool in the pit, and realizes the drilling function under the complex working conditions of the mining machinery.
Description
Technical Field
The invention belongs to the technical field of coal mine exploitation machinery, and relates to a matched device for connecting various drilling machines and drill pipes in a coal mine, which is applicable to rock drifts, coal drifts, semi-coal rock drifts, anchor rod and anchor cable construction operations and positive and negative rotation large torque transmission devices for various blast holes, anti-bursting holes and water exploration hole construction operations.
Background
At present, in the drilling operation of various mechanical drilling machines of coal mines, the connection mode of taper threads or rectangular threads is generally adopted to transmit torque for drilling and locking anchor rod and anchor cable operation, a drill rod receives resultant force such as pressure, torsion, pulsating impact force and the like in the working process, the stress condition is complex, the working condition is relatively bad, the common threaded connection mode has poor impact resistance, the transmission capability of large torque is relatively weak, and various failure modes such as drill rod fracture, thread failure and the like are easily caused; and the drill rod connected in the common thread form is adopted, if accidents such as drill rod blocking and drill burying occur in the drilling process, the drill rod needs to be reversely rotated when the drill rod is withdrawn, and the tripping phenomenon can occur. In addition, many drilling machines adopt left-handed threads to be connected with a drill rod, but the anchor rod locking, the anchor rope stirring and the locking adopted in the pit generally adopt a right-handed mode, so that the left-handed connection mode cannot meet the requirements of underground construction and operation.
Disclosure of Invention
The invention mainly solves the technical problems of the common threaded connection and the limitation of the left-hand connection use of a drilling machine, and provides a positive and negative rotation high torque transmission device.
The technical scheme adopted by the invention for solving the problems is as follows: a positive and negative rotation high torque transmission device, wherein: the device consists of a drill bit tail, a reducer sleeve, a hexagonal connecting sleeve and an elastic retainer ring for a shaft, wherein a first external hexagonal and a second external hexagonal are respectively arranged on the outer walls of the drill bit tail and the reducer sleeve, an inner hexagonal I with a through length is axially arranged in the hexagonal connecting sleeve, the first external hexagonal and the second external hexagonal arranged on the outer walls of the drill bit tail and the reducer sleeve are sleeved in the inner hexagonal I on the inner surface of the hexagonal connecting sleeve, one end of the drill bit tail is connected with a drilling machine, the other end of the drill bit tail is provided with a left-handed wave-shaped female thread and is matched with a wave-shaped male thread at one end of the reducer sleeve, and a cooling water channel is arranged in an inner cavity of the drill bit tail so as to facilitate cooling water to pass; the middle part of the reducer sleeve is provided with a mounting groove of the elastic check ring for the shaft, the elastic check ring for the shaft is arranged in the mounting groove, and the elastic check ring for the shaft plays a limiting role on the hexagonal connecting sleeve in the axial direction so as to prevent the hexagonal connecting sleeve from moving in the axial direction.
Further, an inner hexagonal II is also arranged in the inner cavity at the other end of the reducer sleeve, so that the reducer sleeve is convenient to connect with a drill rod.
The invention adopts female and male wave-shaped screw threads to connect axially, the wave-shaped screw threads have the advantages of good sealing property, strong impact resistance, capability of bearing large torque transmission and the like; the drill shank, the reducer sleeve and the hexagonal connecting sleeve are connected in an inner hexagonal and outer hexagonal matching mode, the rotating movement of the reducer sleeve relative to the drill shank is limited by the matching mode, and the tight connection of male and female wave-shaped threads and no unscrewing can be ensured; the torsion force applied to the drill rod during forward rotation or reverse rotation is mainly borne by the matched connection parts of the inner hexagon and the outer hexagon, and the inner hexagon and the outer hexagon have the advantages of simple processing, large transmission torque, strong bearing and destroying capacity and the like; the reducer sleeve is provided with an axial elastic retainer ring mounting groove, so that the axial elastic retainer ring is convenient to mount, and the axial positioning effect is achieved on the hexagonal connecting sleeve; the other end of the reducer sleeve is connected with the drill rod in a hexagonal joint mode, so that the functions of forward high-torque drilling, reverse non-tripping withdrawal and the like of the drill rod can be realized. By the above, the device has all realized the location connection function in circumference and axial, ensures that the drilling rod is bored in-process, no matter rig corotation or reversal, the rig homoenergetic is passed through the drilling rod and is transmitted the drill bit, realizes big moment of torsion transmission, changes the use limitation of left-hand driller, adaptation multiple operating mode in the pit and the drilling tool operation requirement, realizes the drilling function under the complicated operation operating mode of mining machinery.
The invention has the following advantages:
1. the device adopts the wave-shaped threaded connection form axially and the hexagonal connection form radially, and through bidirectional connection, the impact resistance of the device is effectively improved, and larger torque can be transmitted, so that the device meets the supporting requirements of anchor rods and anchor cables, and adapts to various complex working conditions in the pit.
2. The hexagonal reducer sleeve is in butt joint with the drill rod in a hexagonal joint mode, so that the phenomenon of thread release during the locking and reversing of the drill rod can be effectively prevented, and the forward and reverse reversing function of the drill rod is realized.
3. The drill shank, the reducer sleeve and the hexagonal connecting sleeve are all made of high-strength materials and are subjected to finish machining after heat treatment, so that the drill shank is high in fatigue limit, strong in impact resistance and good in toughness, and the requirements of underground use are met.
4. The assembly and disassembly are convenient, when the assembly is carried out, the wave-shaped male thread of the reducer sleeve is screwed into the female thread of the drill shank, after the wave-shaped male thread is screwed into place, the drill shank is basically aligned with the outer hexagon of the reducer sleeve, then the hexagonal connecting sleeve is slid in place, the inner hexagon of the hexagonal connecting sleeve is tightly matched with the drill shank and the outer hexagon of the reducer sleeve, and finally the elastic retainer ring for the shaft is installed, so that the assembly process is completed, and the assembly is carried out reversely when the assembly is carried out.
5. Cooling water channels are arranged in the bore bit tail and the inner cavity of the reducer sleeve, so that cooling and flushing of the drill rod in the drilling process are facilitated.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a cross-sectional view of the interior of the structure of the present invention;
FIG. 3 is a schematic view of the construction of the shank adapter;
FIG. 4 is a schematic view of the construction of the reducer sleeve;
fig. 5 is a schematic structural view of a hexagonal connecting sleeve.
Detailed Description
As shown in fig. 1 to 5, the present embodiment of a positive and negative rotation high torque transmission device, wherein: the device consists of a drill shank 13-1, a reducer sleeve 13-2, a hexagonal connecting sleeve 13-3 and an elastic retainer ring 13-4 for a shaft, wherein a first external hexagonal 13-6 and a second external hexagonal 13-9 are respectively arranged on the outer walls of the drill shank 13-1 and the reducer sleeve 13-2, an inner hexagonal 13-12 with a through length is axially arranged in the hexagonal connecting sleeve 13-3, a first external hexagonal 13-6 and a second external hexagonal 13-9 arranged on the outer walls of the drill shank 13-1 and the reducer sleeve 13-2 are sleeved in an inner hexagonal 13-12 on the inner surface of the hexagonal connecting sleeve 13-3, one end of the drill shank 13-1 is connected with a drilling machine, the other end of the drill shank 13-1 is provided with a left-handed wave-shaped female thread 13-7 and is matched with a wave-shaped male thread 13-8 on one end of the reducer sleeve 13-2, and the inner cavity of the drill shank 13-1 is provided with a cooling water channel 13-5, so that cooling water can conveniently pass through; the middle part of the reducer sleeve 13-2 is provided with a mounting groove 13-10 of the shaft elastic retainer ring 13-4, the shaft elastic retainer ring 13-4 is arranged in the mounting groove 13-10, and the hexagonal connecting sleeve 13-3 is limited in the axial direction, so that the hexagonal connecting sleeve 13-3 is prevented from moving in the axial direction. An inner hexagonal II 13-11 is also arranged in the inner cavity of the other end of the reducer sleeve 13-2, so that the reducer sleeve is convenient to connect with a drill rod.
Claims (1)
1. A positive and negative rotation large torque transmission device is characterized in that: the device consists of a drill shank (13-1), a reducer sleeve (13-2), a hexagonal connecting sleeve (13-3) and an elastic retainer ring (13-4) for a shaft, wherein a first external hexagonal (13-6) and a second external hexagonal (13-9) are respectively arranged on the outer walls of the drill shank (13-1) and the reducer sleeve (13-2), an inner hexagonal I (13-12) with the through length is axially arranged in the hexagonal connecting sleeve (13-3), the first external hexagonal (13-6) and the second external hexagonal (13-9) arranged on the outer walls of the drill shank (13-1) and the reducer sleeve (13-2) are sleeved in the inner hexagonal I (13-12) on the inner surface of the hexagonal connecting sleeve (13-3), one end of the drill shank (13-1) is connected with a drilling machine, the other end of the drill shank is provided with a left-handed wave-shaped female thread (13-7), the drill shank is matched with a wave-shaped male thread (13-8) at one end of the reducer sleeve (13-2), and a cooling water channel (13-5) is arranged in an inner cavity (13-1) of the drill shank (13-2), so that cooling water can pass conveniently; the middle part of the reducer sleeve (13-2) is provided with a mounting groove (13-10) of a shaft elastic retainer ring (13-4), the shaft elastic retainer ring (13-4) is arranged in the mounting groove (13-10), and the hexagonal connecting sleeve (13-3) is limited in the axial direction to prevent the hexagonal connecting sleeve (13-3) from moving in the axial direction;
an inner hexagonal II (13-11) is also arranged in the inner cavity of the other end of the reducer sleeve (13-2) so as to be convenient for connection with a drill rod; the device has all realized the locate connection function in circumference and axial, ensures that the drilling machine is in the drilling process of drilling rod, no matter the rig corotation or reversal, and the rig can both transmit the power to the drill bit through the drilling rod, realizes big moment of torsion transmission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910663105.8A CN110259391B (en) | 2019-07-22 | 2019-07-22 | Forward and reverse rotation large torque transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910663105.8A CN110259391B (en) | 2019-07-22 | 2019-07-22 | Forward and reverse rotation large torque transmission device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110259391A CN110259391A (en) | 2019-09-20 |
| CN110259391B true CN110259391B (en) | 2024-01-30 |
Family
ID=67927537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910663105.8A Active CN110259391B (en) | 2019-07-22 | 2019-07-22 | Forward and reverse rotation large torque transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110259391B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110529508A (en) * | 2019-10-17 | 2019-12-03 | 贵州高峰石油机械股份有限公司 | A kind of connection method of anti-back button and structure for bearing positive and negative high torque |
| CN112431560B (en) * | 2020-10-20 | 2023-01-13 | 山东九商定向钻探有限公司 | Mining geological drill rod |
| CN112664147B (en) * | 2020-12-07 | 2022-11-25 | 中煤科工集团重庆研究院有限公司 | Tooth-embedded stop type forward and reverse rotation drill rod |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865045A (en) * | 2012-09-25 | 2013-01-09 | 贵阳科迈机械设备有限公司 | Rock drilling quick replacing drilling rod with taper thread |
| CN103628826A (en) * | 2012-08-23 | 2014-03-12 | 钟鸣远 | Drill rod forward and reverse rotation connecting device for underground coal mine drilling machine |
| CN203961814U (en) * | 2014-06-11 | 2014-11-26 | 徐州恒佳机械科技有限公司 | Jumbolter drilling rod quick-connect machanism |
| CN205955664U (en) * | 2016-06-30 | 2017-02-15 | 冀凯河北机电科技有限公司 | Lead to water drilling rod connection structure |
| CN109339716A (en) * | 2018-11-27 | 2019-02-15 | 北京新能正源智能装备有限公司 | Thread off prevention connecting device and anticreep for drilling rod assemble body |
| CN210460531U (en) * | 2019-07-22 | 2020-05-05 | 山西天巨重工机械有限公司 | Forward and reverse rotation large torque transmission device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005003505A1 (en) * | 2003-06-27 | 2005-01-13 | The Charles Machine Works, Inc. | Coupling for dual member pipe |
| US20170089149A1 (en) * | 2014-05-16 | 2017-03-30 | Atlas Copco Secoroc Ab | Joint and joint parts for drill string components and components |
-
2019
- 2019-07-22 CN CN201910663105.8A patent/CN110259391B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103628826A (en) * | 2012-08-23 | 2014-03-12 | 钟鸣远 | Drill rod forward and reverse rotation connecting device for underground coal mine drilling machine |
| CN102865045A (en) * | 2012-09-25 | 2013-01-09 | 贵阳科迈机械设备有限公司 | Rock drilling quick replacing drilling rod with taper thread |
| CN203961814U (en) * | 2014-06-11 | 2014-11-26 | 徐州恒佳机械科技有限公司 | Jumbolter drilling rod quick-connect machanism |
| CN205955664U (en) * | 2016-06-30 | 2017-02-15 | 冀凯河北机电科技有限公司 | Lead to water drilling rod connection structure |
| CN109339716A (en) * | 2018-11-27 | 2019-02-15 | 北京新能正源智能装备有限公司 | Thread off prevention connecting device and anticreep for drilling rod assemble body |
| CN210460531U (en) * | 2019-07-22 | 2020-05-05 | 山西天巨重工机械有限公司 | Forward and reverse rotation large torque transmission device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110259391A (en) | 2019-09-20 |
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