CN111691830B - Joint of dual-purpose drilling rod of rotary drilling down-the-hole hammer - Google Patents
Joint of dual-purpose drilling rod of rotary drilling down-the-hole hammer Download PDFInfo
- Publication number
- CN111691830B CN111691830B CN202010463995.0A CN202010463995A CN111691830B CN 111691830 B CN111691830 B CN 111691830B CN 202010463995 A CN202010463995 A CN 202010463995A CN 111691830 B CN111691830 B CN 111691830B
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- main body
- bearing
- hanging cap
- plate
- joint
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- 238000005553 drilling Methods 0.000 title claims description 20
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 59
- 239000010959 steel Substances 0.000 claims abstract description 59
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims description 18
- 238000004804 winding Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 description 9
- 238000004891 communication Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000011435 rock Substances 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 210000001503 joint Anatomy 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000000149 penetrating effect 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
- E21B17/02—Couplings; joints
- E21B17/03—Couplings; joints between drilling rod or pipe and drill motor or surface drive, e.g. between drilling rod and hammer
-
- 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
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/16—Plural down-hole drives, e.g. for combined percussion and rotary drilling; Drives for multi-bit drilling units
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 provides a joint of a dual-purpose drill rod of a rotary digging down-the-hole hammer, wherein the outer side of the upper end of a main body steel pipe is fixedly connected with a main body flange plate, and the outer side of the upper part of the main body steel pipe is fixedly sleeved with an annular baffle and a bearing bush from top to bottom; the outer side of the lower end of the hanging cap pipe is fixedly connected with a hanging cap flange plate, and the top of the inner cavity of the hanging cap pipe is fixedly provided with a hanging cap circular plate; the center of the upper end of the hanging cap circular plate is fixedly provided with a pair of connecting lug plates, and the hanging cap pin shaft is rotatably connected to the pair of connecting lug plates; the bearing seat is coaxially sleeved on the outer side of the bearing bush and is connected with the bearing bush through a plurality of bearings; the outer side of the upper end of the bearing seat is fixedly connected with a bearing seat flange plate, and the bearing seat flange plate is fixedly connected with a hanging cap flange plate through a connecting bolt; the upper end of the connecting joint is fixedly connected with the lower end of the main body steel pipe; the reinforcing sleeve is sleeved on the outer side of the connecting part of the main body steel pipe and the connecting joint. The joint is suitable for a dual-purpose drill rod, and can stably establish reliable connection between the drill rod and a main machine body.
Description
Technical Field
The invention belongs to the technical field of building and bridge construction equipment, and particularly relates to a joint of a dual-purpose drill rod of a rotary drilling down-the-hole hammer.
Background
In the pile foundation construction process, pore forming is an important foundation construction operation, and in the traditional construction process, pore forming is carried out on different strata by adopting different construction machines. Because the rotary drilling rig has higher hole forming efficiency on the soil layer, the rotary drilling rig is generally adopted when the soil layer is subjected to hole forming operation, and the down-the-hole hammer has higher hole forming efficiency on a rock pile foundation, so that the down-the-hole hammer is generally adopted when the rock stratum is subjected to hole forming operation. In order to pursue higher construction efficiency, meanwhile, in order to better cope with geological conditions formed by common soil layers and rocks, drill rods need to be frequently replaced in the construction process, connectors corresponding to different drill rods are different, and in order to realize connection between the drill rods and a main machine body, connectors of the drill rods need to be replaced, so that the construction efficiency is greatly reduced.
In order to effectively combine the advantages of the rotary drilling rig and the down-the-hole hammer, the prior art designs a dual-purpose drill rod suitable for rotary drilling of the rotary drilling rig and down-the-hole hammer construction, but no joint suitable for the dual-purpose drill rod exists in the prior art.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a joint of a dual-purpose drill rod of a rotary drilling down-the-hole hammer, which is suitable for the dual-purpose drill rod and can stably establish reliable connection between the drill rod and a main machine body.
In order to achieve the above purpose, the invention provides a joint of a dual-purpose drill rod of a rotary drilling down-the-hole hammer, which comprises a connecting joint, a main body steel pipe, a hanging cap pipe, a bearing seat and a reinforcing sleeve;
the outer side of the upper end of the main body steel pipe is fixedly connected with a main body flange plate, an annular baffle plate is fixedly sleeved on the outer side of the upper part of the main body steel pipe, and a bearing bushing is fixedly sleeved on the outer side of the upper part of the main body steel pipe below the annular baffle plate;
The outer side of the lower end of the hanging cap pipe is fixedly connected with a hanging cap flange plate, the inner diameter of the hanging cap pipe is larger than the outer diameter of the annular baffle plate, the lower end of the hanging cap pipe is coaxially sleeved on the outer side of the upper part of the main body steel pipe, the top of the inner cavity of the hanging cap pipe is fixedly provided with a hanging cap circular plate, and a wind distributor installation cavity for accommodating a wind distributor is formed between the hanging cap circular plate and the main body flange plate; the pipe body of the hanging cap pipe is provided with a plurality of through holes communicated with the mounting cavity of the air distributor; the center of the upper end of the hanging cap circular plate is fixedly provided with a pair of connecting lug plates, and a hanging cap pin shaft is rotatably connected to the pair of connecting lug plates;
The bearing seat is of a sleeve type structure, is positioned below the annular baffle plate, coaxially sleeved on the outer side of the bearing bush and connected with the bearing bush through a plurality of bearings arranged longitudinally; the outer diameter of the bearing seat is smaller than that of the annular baffle plate, the outer side of the upper end of the bearing seat is fixedly connected with a bearing seat flange plate, and the bearing seat flange plate is fixedly connected with the hanging cap flange plate through a connecting bolt so as to fixedly connect the hanging cap pipe with the bearing seat;
the axial center of the connecting joint is axially and penetratingly provided with a communication cavity, the upper end of the communication cavity is fixedly connected with the lower end of the main body steel pipe, and the communication cavity is communicated with the inner cavity of the main body steel pipe;
the reinforcing sleeve is sleeved on the outer side of the connecting part of the main body steel pipe and the connecting joint and is fixedly connected with the main body steel pipe and the connecting joint.
Preferably, the bearing pressing plate is annular, the inner diameter of the bearing pressing plate is slightly larger than the outer diameter of the main body steel pipe, and the outer diameter of the bearing pressing plate is smaller than the inner diameter of the bearing seat; the bearing pressing plate is coaxially sleeved on the outer side of the main body steel pipe and fixedly connected with the lower end of the bearing bushing through a bolt;
The sealing pressing plate is annular, the inner diameter of the sealing pressing plate is slightly larger than the outer diameter of the bearing pressing plate, and the sealing pressing plate is coaxially sleeved on the outer side of the bearing pressing plate and fixedly connected with the lower end of the bearing seat through a bolt; an annular notch is formed in the upper end of the sealing pressing plate, and a lip sealing ring matched with the bearing pressing plate is arranged in the annular notch.
Further, in order to realize more reliable connection, a hanging cap rib plate is fixedly connected between the hanging cap pipe and the hanging cap flange plate; a main body rib plate is fixedly connected between the main body steel pipe and the main body flange plate; and a bearing seat rib plate is fixedly connected between the bearing seat and the bearing seat flange plate.
Preferably, the connection joint is an external hexagonal joint.
Further, in order to facilitate the establishment of reliable connection with the modified drill rod, two semicircular inner positioning pin grooves are formed in left and right sides of the lower portion of the connecting joint in a staggered manner, extend in the front-rear direction and are arranged in parallel.
Further, in order to ensure a more reliable connection, while also ensuring a good running fit, the plurality of bearings includes a self-aligning thrust bearing between the bearing bushing and the upper end of the bearing housing, and two deep groove ball bearings between the bearing bushing and the middle and lower ends of the bearing housing, respectively.
Further, in order to realize more stable and reliable connection between the hanging cap flange plate and the bearing seat flange plate, the connecting bolts sequentially penetrate through the hanging cap flange plate and the bearing seat flange plate after penetrating through the cushion cylinder and are connected with locking nuts positioned at the lower part of the bearing seat flange plate.
Further, in order to be capable of being more tightly matched with the wind distributor when being connected with the wind distributor, the upper end face of the main body flange plate is also provided with a winding steel wire pad.
According to the invention, the top of the inner cavity of the hanging cap pipe is fixedly connected with the hanging cap circular plate with the hanging cap ear plate, so that the hanging connection of the whole butt joint can be realized through the hanging cap pin shaft arranged on the hanging cap ear plate; the main body flange plate is connected to the upper end of the main body steel pipe, so that the connection with the wind separator can be facilitated; the bearing bush is fixedly sleeved on the outer side of the upper part of the main body steel pipe, and the bearing seat is connected with the bearing bush through the bearing, so that the main body steel pipe can rotate stably relative to the bearing seat; the upper end of the bearing seat is connected with the bearing seat flange plate, and the bearing flange plate is fixedly connected with the hanging cap flange plate, so that the main body steel pipe can freely rotate relative to the hanging cap pipe. The annular baffle is fixedly connected to the outer side of the upper part of the main body steel pipe, so that the weight of the drill rod and the wind distributor can be changed through the annular baffle in the hoisting process; the wind distributor installation cavity arranged between the upper end of the main body steel pipe and the hanging cap circular plate can facilitate the subsequent installation of the wind distributor. Through the arrangement of the reinforcing sleeve, stable and reliable connection between the connecting joint and the main body steel pipe can be ensured. The positioning pin groove is formed in the connecting joint, so that stable and reliable connection with the modified drill rod can be realized. The joint is suitable for a dual-purpose drill rod, and can stably establish reliable connection between the drill rod and a main machine body.
Drawings
Fig. 1 is a schematic structural view of the present invention.
In the figure: 1. the device comprises a connecting joint, 2, a reinforcing sleeve, 3, a bearing pressing plate, 4, a sealing pressing plate, 5, a main body steel pipe, 6, a deep groove ball bearing, 7, a bearing bushing, 8, an annular baffle, 9, a main body rib plate, 10, a main body flange plate, 11, a winding steel wire pad, 12, a hanging cap pipe, 13, a hanging cap circular plate, 14, a hanging cap lug plate, 15, a hanging cap pin shaft, 16, an air distributor, 17, a hanging cap rib plate, 18, a cushion cylinder, 19, a hanging cap flange plate, 20, a bearing seat flange plate, 21, a bearing seat rib plate, 22, a aligning thrust bearing, 23, a bearing seat, 24, a lip seal ring, 25, a hexagonal connecting pin shaft, 26, a modified drill rod, 27, an air distributor mounting cavity, 28, a communication cavity, 29, an internal positioning pin groove, 30 and a through hole.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1, the invention provides a joint of a dual-purpose drill rod of a rotary drilling down-the-hole hammer, which comprises a connecting joint 1, a main body steel pipe 5, a hanging cap pipe 12, a bearing seat 23 and a reinforcing sleeve 2;
The outer side of the upper end of the main body steel pipe 5 is fixedly connected with a main body flange plate 10, the outer side of the upper part of the main body steel pipe 5 is fixedly sleeved with an annular baffle plate 8, and the outer side of the upper part of the main body steel pipe 5 is fixedly sleeved with a bearing bush 7 below the annular baffle plate 8; the upper end of the bearing bush 7 is abutted against the lower end face of the annular baffle plate 8 and welded together;
the outer side of the lower end of the hanging cap pipe 12 is fixedly connected with a hanging cap flange plate 19, the inner diameter of the hanging cap pipe 12 is larger than the outer diameter of the annular baffle plate 8, the lower end of the hanging cap pipe 12 is coaxially sleeved on the outer side of the upper part of the main body steel pipe 5, the top of an inner cavity of the hanging cap pipe is fixedly provided with a hanging cap circular plate 13, and a wind distributor mounting cavity 27 for accommodating a wind distributor 16 is formed between the hanging cap circular plate 13 and the main body flange plate 10; the pipe body of the hanging cap pipe 12 is provided with a plurality of through holes 30 communicated with the air distributor mounting cavity 27; the through holes 30 are used for the subsequent use of connecting air supply pipelines into the air distributor 6; a pair of connecting lug plates 14 are fixedly arranged in the center of the upper end of the hanging cap circular plate 13, and hanging cap pin shafts 15 are rotatably connected to the pair of connecting lug plates 14;
the bearing seat 23 is a sleeve type structure, is positioned below the annular baffle plate 8, coaxially sleeved on the outer side of the bearing bush 7, and is connected with the bearing bush 7 through a plurality of bearings arranged longitudinally; the outer diameter of the bearing seat 23 is smaller than that of the annular baffle plate 8, the outer side of the upper end of the bearing seat is fixedly connected with a bearing seat flange plate 20, and the bearing seat flange plate 20 is fixedly connected with a hanging cap flange plate 19 through a connecting bolt so as to fixedly connect the hanging cap pipe 12 with the bearing seat 23;
The axial center of the connecting joint 1 is axially and penetratingly provided with a communication cavity 28, the upper end of the communication cavity 28 is fixedly connected with the lower end of the main body steel pipe 5, and the communication cavity 28 is communicated with the inner cavity of the main body steel pipe 5;
The reinforcing sleeve 2 is sleeved on the outer side of the connecting part of the main body steel pipe 5 and the connecting joint 1 and is fixedly connected with the main body steel pipe 5 and the connecting joint 1.
Preferably, the bearing pressing plate 3 and the sealing pressing plate 4 are also included, the bearing pressing plate 3 is annular, the inner diameter of the bearing pressing plate is slightly larger than the outer diameter of the main body steel pipe 5, and the outer diameter of the bearing pressing plate is smaller than the inner diameter of the bearing seat 23; the bearing pressing plate 3 is coaxially sleeved on the outer side of the main body steel pipe 5 and is fixedly connected with the lower end of the bearing bush 7 through a bolt;
The sealing pressing plate 4 is annular, the inner diameter of the sealing pressing plate is slightly larger than the outer diameter of the bearing pressing plate 3, and the sealing pressing plate is coaxially sleeved on the outer side of the bearing pressing plate 3 and fixedly connected with the lower end of the bearing seat 23 through a bolt; an annular notch is formed in the upper end of the sealing pressing plate 4, and a lip sealing ring 24 matched with the bearing pressing plate 3 is arranged in the annular notch.
In order to realize more reliable connection, a hanging cap rib plate 17 is fixedly connected between the hanging cap pipe 12 and the hanging cap flange plate 19; a main body rib plate 9 is fixedly connected between the main body steel pipe 5 and the main body flange plate 10; and a bearing seat rib plate 21 is fixedly connected between the bearing seat 23 and the bearing seat flange plate 20.
Preferably, the connection joint 1 is an external hexagonal joint.
In order to facilitate the establishment of a reliable connection with the modified drill rod 26, the left and right edges of the lower part of the connecting joint 1 are provided with two semicircular inner positioning pin grooves 29 in a left-right staggered manner, and the two inner positioning pin grooves 29 extend in the front-rear direction and are arranged in parallel. Two outer locating pin grooves are formed in the modified drill rod 26 corresponding to the two inner locating pin grooves 29, so that when the modified drill rod 26 is connected, the connecting joint 1 can be inserted into an inner hexagonal joint in the modified drill rod 26, and then the two hexagonal connecting pin shafts 25 are inserted into a space surrounded by the inner locating pin grooves 29 and the outer locating pin grooves, so that the joint can be reliably connected with the modified drill rod 26.
In order to ensure a more reliable connection, while also ensuring a good running fit, the plurality of bearings comprises a self-aligning thrust bearing 22 between the bearing bushing 7 and the upper end of the bearing housing 23, and two deep groove ball bearings 6 between the middle and lower ends of the bearing bushing 7 and the bearing housing 23, respectively.
In order to realize a more stable and reliable connection between the hanging cap flange plate and the bearing seat flange plate, the connecting bolts sequentially pass through the hanging cap flange plate 19 and the bearing seat flange plate 20 after passing through the cushion cylinder 18 and are connected with locking nuts positioned at the lower part of the bearing seat flange plate 20.
In order to be able to more closely match the wind distributor when being connected with the wind distributor, the upper end face of the main body flange plate 10 is also provided with a winding steel wire pad 11.
A hanging cap circular plate with a hanging cap ear plate is fixedly connected to the top of the inner cavity of the hanging cap pipe, so that the hanging connection of the whole butt joint can be conveniently realized through a hanging cap pin shaft arranged on the hanging cap ear plate; the main body flange plate is connected to the upper end of the main body steel pipe, so that the connection with the wind separator can be facilitated; the bearing bush is fixedly sleeved on the outer side of the upper part of the main body steel pipe, and the bearing seat is connected with the bearing bush through the bearing, so that the main body steel pipe can rotate stably relative to the bearing seat; the upper end of the bearing seat is connected with the bearing seat flange plate, and the bearing flange plate is fixedly connected with the hanging cap flange plate, so that the main body steel pipe can freely rotate relative to the hanging cap pipe. The annular baffle is fixedly connected to the outer side of the upper part of the main body steel pipe, so that the weight of the drill rod and the wind distributor can be changed through the annular baffle in the hoisting process; the wind distributor installation cavity arranged between the upper end of the main body steel pipe and the hanging cap circular plate can facilitate the subsequent installation of the wind distributor. Through the arrangement of the reinforcing sleeve, stable and reliable connection between the connecting joint and the main body steel pipe can be ensured. The positioning pin groove is formed in the connecting joint, so that stable and reliable connection with the modified drill rod can be realized. The upper end of the connector can be conveniently connected with the machine body, the connecting connector 1 at the lower end can be conveniently inserted into the modified drill rod 26 and fixedly connected through a connecting pin shaft, and the connector is suitable for the dual-purpose drill rod and can stably establish reliable connection between the drill rod and the main machine body.
Claims (8)
1. The joint of the dual-purpose drilling rod of the rotary drilling down-the-hole hammer comprises a connecting joint (1) and is characterized by also comprising a main body steel pipe (5), a hanging cap pipe (12), a bearing seat (23) and a reinforcing sleeve (2);
the outer side of the upper end of the main body steel pipe (5) is fixedly connected with a main body flange plate (10), an annular baffle plate (8) is fixedly sleeved on the outer side of the upper part of the main body steel pipe (5), and a bearing bushing (7) is fixedly sleeved below the annular baffle plate (8) on the outer side of the upper part of the main body steel pipe (5);
The outer side of the lower end of the hanging cap pipe (12) is fixedly connected with a hanging cap flange plate (19), the inner diameter of the hanging cap pipe (12) is larger than the outer diameter of the annular baffle plate (8), the lower end of the hanging cap pipe is coaxially sleeved on the outer side of the upper part of the main body steel pipe (5), the top of the inner cavity of the hanging cap pipe is fixedly provided with a hanging cap circular plate (13), and a wind distributor mounting cavity (27) for accommodating a wind distributor (16) is formed between the hanging cap circular plate (13) and the main body flange plate (10); a plurality of through holes (30) communicated to the air distributor mounting cavity (27) are formed in the pipe body of the hanging cap pipe (12); a pair of connecting lug plates (14) are fixedly arranged in the center of the upper end of the hanging cap circular plate (13), and hanging cap pin shafts (15) are rotatably connected to the pair of connecting lug plates (14);
The bearing seat (23) is of a sleeve type structure, is positioned below the annular baffle plate (8), coaxially sleeved on the outer side of the bearing bush (7) and is connected with the bearing bush (7) through a plurality of bearings arranged longitudinally; the outer diameter of the bearing seat (23) is smaller than that of the annular baffle (8), the outer side of the upper end of the bearing seat is fixedly connected with a bearing seat flange plate (20), and the bearing seat flange plate (20) is fixedly connected with a hanging cap flange plate (19) through a connecting bolt so as to fixedly connect the hanging cap pipe (12) with the bearing seat (23);
A communicating cavity (28) is axially and penetratingly arranged at the axis of the connecting joint (1), the upper end of the communicating cavity is fixedly connected with the lower end of the main body steel pipe (5), and the communicating cavity (28) is communicated with the inner cavity of the main body steel pipe (5);
The reinforcing sleeve (2) is sleeved on the outer side of the connecting part of the main body steel pipe (5) and the connecting joint (1), and is fixedly connected with the main body steel pipe (5) and the connecting joint (1) at the same time.
2. The joint of a dual-purpose drill rod of a rotary-excavating down-the-hole hammer according to claim 1, further comprising a bearing pressing plate (3) and a sealing pressing plate (4), wherein the bearing pressing plate (3) is annular, the inner diameter of the bearing pressing plate is slightly larger than the outer diameter of a main body steel pipe (5), and the outer diameter of the bearing pressing plate is smaller than the inner diameter of a bearing seat (23); the bearing pressing plate (3) is coaxially sleeved on the outer side of the main body steel pipe (5) and is fixedly connected with the lower end of the bearing bushing (7) through a bolt;
The sealing pressing plate (4) is annular, the inner diameter of the sealing pressing plate is slightly larger than the outer diameter of the bearing pressing plate (3), and the sealing pressing plate is coaxially sleeved on the outer side of the bearing pressing plate (3) and fixedly connected with the lower end of the bearing seat (23) through a bolt; an annular notch is formed in the upper end of the sealing pressing plate (4), and a lip sealing ring (24) matched with the bearing pressing plate (3) is arranged in the annular notch.
3. The joint of a dual-purpose drill rod of a rotary drilling down-the-hole hammer according to claim 1 or 2, wherein a hanging cap rib plate (17) is fixedly connected between the hanging cap pipe (12) and the hanging cap flange plate (19); a main body rib plate (9) is fixedly connected between the main body steel pipe (5) and the main body flange plate (10); and a bearing seat rib plate (21) is fixedly connected between the bearing seat (23) and the bearing seat flange plate (20).
4. A joint for a dual-purpose drill rod for a rotary drilling down-the-hole hammer according to claim 3, wherein the connecting joint (1) is an external hexagonal joint.
5. The joint of a dual-purpose drill rod for a rotary drilling down-the-hole hammer according to claim 4, wherein the left side edge and the right side edge of the lower part of the connecting joint (1) are provided with two semicircular inner positioning pin grooves (29) in a left-right staggered manner, and the two inner positioning pin grooves (29) extend in the front-back direction and are arranged in parallel.
6. The joint of dual-purpose drill rods for rotary-and-down-the-hole hammers according to claim 5, characterized in that the plurality of bearings comprises a self-aligning thrust bearing (22) between the bearing bush (7) and the upper end of the bearing block (23), and two deep-groove ball bearings (6) between the bearing bush (7) and the middle and lower ends of the bearing block (23), respectively.
7. The joint of a dual-purpose drill rod for a rotary drilling down-the-hole hammer according to claim 6, wherein the connecting bolt sequentially passes through the hanging cap flange plate (19) and the bearing seat flange plate (20) after passing through the cushion cylinder (18) and is connected with a locking nut positioned at the lower part of the bearing seat flange plate (20).
8. The joint of a dual-purpose drill rod for a rotary drilling down-the-hole hammer according to claim 7, wherein the upper end surface of the main body flange plate (10) is also provided with a winding steel wire pad (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010463995.0A CN111691830B (en) | 2020-05-27 | 2020-05-27 | Joint of dual-purpose drilling rod of rotary drilling down-the-hole hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010463995.0A CN111691830B (en) | 2020-05-27 | 2020-05-27 | Joint of dual-purpose drilling rod of rotary drilling down-the-hole hammer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111691830A CN111691830A (en) | 2020-09-22 |
| CN111691830B true CN111691830B (en) | 2024-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010463995.0A Active CN111691830B (en) | 2020-05-27 | 2020-05-27 | Joint of dual-purpose drilling rod of rotary drilling down-the-hole hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111691830B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112377112B (en) * | 2020-09-30 | 2022-06-28 | 徐州雷曼机械科技有限公司 | Telescopic reverse circulation down-the-hole hammer drill rod |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3757876A (en) * | 1971-09-01 | 1973-09-11 | Smith International | Drilling and belling apparatus |
| AU9421498A (en) * | 1997-12-01 | 1999-06-17 | Ian Graeme Rear | Drill rod coupling |
| CN102650194A (en) * | 2012-04-25 | 2012-08-29 | 上海浦耀钻杆配件制造厂 | Drill rod reducing joint of lock-type rotary drilling rig |
| CN104196465A (en) * | 2014-08-07 | 2014-12-10 | 北京恒坤伟业工贸有限公司 | Connection mode of down-hole hammer and drill stem generally used in rotary drilling rig and application thereof |
| CN107724970A (en) * | 2017-11-07 | 2018-02-23 | 北京泰利新能源科技发展有限公司 | A kind of down-hole hammer crossover sub, down-hole hammer drilling rod and down-hole hammer |
| CN212359652U (en) * | 2020-05-27 | 2021-01-15 | 徐州雷曼机械科技有限公司 | Joint of dual-purpose drill rod of rotary drilling down-the-hole hammer |
-
2020
- 2020-05-27 CN CN202010463995.0A patent/CN111691830B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3757876A (en) * | 1971-09-01 | 1973-09-11 | Smith International | Drilling and belling apparatus |
| AU9421498A (en) * | 1997-12-01 | 1999-06-17 | Ian Graeme Rear | Drill rod coupling |
| CN102650194A (en) * | 2012-04-25 | 2012-08-29 | 上海浦耀钻杆配件制造厂 | Drill rod reducing joint of lock-type rotary drilling rig |
| CN104196465A (en) * | 2014-08-07 | 2014-12-10 | 北京恒坤伟业工贸有限公司 | Connection mode of down-hole hammer and drill stem generally used in rotary drilling rig and application thereof |
| CN107724970A (en) * | 2017-11-07 | 2018-02-23 | 北京泰利新能源科技发展有限公司 | A kind of down-hole hammer crossover sub, down-hole hammer drilling rod and down-hole hammer |
| CN212359652U (en) * | 2020-05-27 | 2021-01-15 | 徐州雷曼机械科技有限公司 | Joint of dual-purpose drill rod of rotary drilling down-the-hole hammer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111691830A (en) | 2020-09-22 |
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