CN220727108U - Drill rod coupler air supply sealing device of rotary drill - Google Patents
Drill rod coupler air supply sealing device of rotary drill Download PDFInfo
- Publication number
- CN220727108U CN220727108U CN202322470735.8U CN202322470735U CN220727108U CN 220727108 U CN220727108 U CN 220727108U CN 202322470735 U CN202322470735 U CN 202322470735U CN 220727108 U CN220727108 U CN 220727108U
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- Prior art keywords
- air inlet
- hollow shaft
- ring
- rotary drill
- drill
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- 238000007789 sealing Methods 0.000 title claims abstract description 24
- 239000004677 Nylon Substances 0.000 claims abstract description 16
- 229920001778 nylon Polymers 0.000 claims abstract description 16
- 230000008878 coupling Effects 0.000 claims abstract description 13
- 238000010168 coupling process Methods 0.000 claims abstract description 13
- 238000005859 coupling reaction Methods 0.000 claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- 238000005553 drilling Methods 0.000 claims abstract description 6
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 8
- 230000007547 defect Effects 0.000 abstract description 5
- 238000005299 abrasion Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 239000011435 rock Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000036642 wellbeing Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses a drill rod coupler air supply sealing device of a rotary drill, and belongs to the technical field of coupler sealing. The novel coupling comprises a coupling assembly, wherein an air inlet joint, an air inlet sleeve, a hollow shaft, a nylon plate and a locking pad are sequentially arranged in the coupling assembly; the joint of the air inlet sleeve and the hollow shaft is respectively provided with a dumbbell seal, a supporting ring and a first O-shaped ring; the outer ring of the hollow shaft is sleeved with a nylon plate, a locking pad is arranged at the joint of the nylon plate and the hollow shaft, and a steel ring is arranged on the outer ring of the locking pad. The rotary trolley-drill rod coupler structure is innovated and reinforced, the technical problems that the conventional rotary trolley-drill rod coupler of the rotary drill is poor in sealing effect and easy to cause pressure relief can be solved, stable and smooth operation of rotary drill operation is guaranteed, drilling operation and perfection rate are improved, stable operation of perforation operation is guaranteed, the defect that a coupler assembly is easy to damage is overcome, manual labor intensity is effectively reduced, and drilling operation and perfection rate are improved.
Description
Technical Field
The utility model relates to the technical field of shaft coupling sealing, in particular to a drill rod shaft coupling air supply sealing device of a rotary drill.
Background
Working principle of rotary drill: when the rotary drill drills, the pressurizing and turning mechanism is connected with the drill rod, so that sufficient shaft pressure and turning torque are provided for the rotary drill bit, the rotary drill bit drills and turns on the rock simultaneously, and static pressure and impact pressure are exerted on the rock. The cone continuously extrudes and cuts impact broken rock in the rolling of the hole bottom; compressed air with certain pressure, flow rate and flow velocity is sprayed out from a drill bit nozzle through an inner cavity of a drill rod, rock slag is continuously blown out of a hole from the bottom of the hole along annular spaces of the drill rod and the hole wall until a drill hole with required hole depth is formed, in the using process of the rotary drill, an original assembly of a drill rod coupler of the rotary drill is easy to damage, and the following problems are found after the assembly is disassembled on site: compressed air enters the coupler, part of parts are rusted, when a drill rod is used, as the drill rod is continuously increased in pressing load, an internal axial gap is excessively large, excessive abrasion is caused, and impact dents are seen on parts; the limiting ring is split into 2 blocks from the whole body, the concave ring groove of the hollow shaft matched with the limiting ring is severely worn, and the original assembly step cannot be distinguished; the original structure is inconvenient to check, and even if abrasion is found, the original structure is inconvenient to replace; the internal parts rust seriously, the lower edges of the parts are stressed and deformed, the limiting rings are cracked, and only one sealing groove is used for blocking compressed air.
Disclosure of Invention
1. Technical problem to be solved by the utility model
The utility model aims to overcome the defects of the prior art, and provides a gas supply sealing device for a rotary drill rod coupler of a rotary drill, which is used for renovating and reinforcing the structure, reselecting materials according to the abrasion condition, reinforcing the whole structure, selecting an alloy steel gas inlet joint for the gas inlet joint, solving the technical problems of poor sealing effect and easy pressure relief of the conventional rotary trolley-drill rod coupler of the rotary drill, ensuring the stable and smooth operation of the rotary drill, improving the operation and perfection rate of the rotary drill, ensuring the stable operation of the perforating operation, eliminating the defect of easy damage of a coupler assembly, effectively reducing the labor intensity of workers and improving the operation and perfection rate of the rotary drill.
2. Technical proposal
In order to achieve the above purpose, the technical scheme provided by the utility model is as follows:
the utility model relates to a gas supply sealing device for a drill rod coupler of a rotary drill, which comprises a coupler assembly, wherein a gas inlet joint, a gas inlet sleeve, a hollow shaft, a nylon plate and a locking pad are sequentially arranged in the coupler assembly;
the upper end of the air inlet sleeve is connected with an air inlet joint, the lower end of the air inlet sleeve is connected with a hollow shaft, and a dumbbell seal, a supporting ring and a first O-shaped ring are respectively arranged at the joint of the air inlet sleeve and the hollow shaft;
the outer ring of the hollow shaft is sleeved with a nylon plate, a locking pad is arranged at the joint of the nylon plate and the hollow shaft, a steel ring is arranged on the outer ring of the locking pad, and the locking pad is fixed on the shaft body of the hollow shaft through the steel ring.
Further, the outer ring of the air inlet connector is provided with a second O-shaped ring.
Further, the air inlet joint is made of alloy steel.
Further, the dumbbell seal is arranged on the inner ring of the air inlet sleeve, and the supporting ring is arranged between the dumbbell seal and the first O-shaped ring and is positioned in the middle of the inner ring of the air inlet sleeve.
Further, the inner side of the coupler assembly is provided with a drill rod external thread, and the inner side of the hollow shaft is provided with a drill rod internal thread.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the utility model has the following beneficial effects:
the rotary trolley-drill rod coupler is innovative and reinforced in structure, materials are selected again according to abrasion conditions, the whole structure is reinforced, alloy steel air inlet connectors are selected as air inlet connectors, the technical problems that an existing rotary trolley-drill rod coupler of a rotary drill machine is poor in sealing effect and easy to cause pressure relief can be solved, stable and smooth operation of the rotary drill machine is guaranteed, drilling machine operation and well-being rate are improved, stable operation of perforation operation is guaranteed, the defect that a coupler assembly is easy to damage is overcome, manual labor intensity is effectively reduced, and drilling machine operation and well-being rate are improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
fig. 2 is an enlarged view of a portion of the present utility model.
In the figure: 1. a coupling assembly; 101. external threads of the drill rod; 2. an air inlet joint; 201. a second O-ring; 3. an air inlet sleeve; 301. dumbbell sealing; 302. a support ring; 303. a first O-ring; 4. a hollow shaft; 401. internal threads of the drill rod; 5. a nylon plate; 6. a locking pad; 601. a steel ring.
Detailed Description
The utility model is further described below with reference to the accompanying drawings and examples:
example 1
1-2, the drill rod coupler air supply sealing device of the rotary drill comprises a coupler assembly 1, wherein an air inlet joint 2, an air inlet sleeve 3, a hollow shaft 4, a nylon plate 5 and a locking pad 6 are sequentially arranged in the coupler assembly 1;
the upper end of the air inlet sleeve 3 is connected with an air inlet joint 2, and a second O-shaped ring 201 is arranged on the outer ring of the air inlet joint 2;
the lower end of the air inlet sleeve 3 is connected with a hollow shaft 4, and a dumbbell seal 301, a supporting ring 302 and a first O-shaped ring 303 are respectively arranged at the joint of the air inlet sleeve 3 and the hollow shaft 4;
the dumbbell seal 301 is mounted on the inner ring of the air inlet sleeve 3, and the supporting ring 302 is arranged between the dumbbell seal 301 and the first O-ring 303 and is located in the middle of the inner ring of the air inlet sleeve 3.
The technical means of adopting single-channel sealing of the hollow mandrel 4 in the prior art is abandoned, the dumbbell seal 301 is arranged in the air inlet sleeve 3, the sealing effect of the dumbbell seal 301 is good, and the hollow mandrel has the characteristics of corrosion resistance, high pressure resistance, high temperature resistance and the like;
meanwhile, the supporting ring 302 is changed to the middle part of the air inlet sleeve 3, so that the stability during assembly is enhanced, and in addition, the first O-shaped ring 303 is additionally arranged on the inner side of the air inlet sleeve 3, so that the use effect and the sealing effect of the whole device can be improved;
the outer ring of the hollow shaft 4 is sleeved with a nylon plate 5, a locking pad 6 is arranged at the joint of the nylon plate 5 and the hollow shaft 4, a steel ring 601 is arranged on the outer ring of the locking pad 6, and the locking pad 6 is fixed on the shaft body of the hollow shaft 4 through the steel ring 601.
The nylon plate 5 is of an integrated structure, and is installed and debugged by adopting a large sleeve and a small sleeve, so that the nylon plate is uniformly stressed and is convenient to replace;
the outer ring of the locking pad 6 is fixed through a steel ring 601, and the locking pad is convenient to detach and install on the premise of ensuring locking;
drill rod external threads 101 are formed on the inner side of the coupler assembly 1, and drill rod internal threads 401 are formed on the inner side of the hollow shaft 4.
The utility model innovates and strengthens the structure, reselects materials according to the abrasion condition, strengthens the whole structure, and the existing air inlet joint is mostly made of abrasion-resistant nylon materials, and is easy to damage in the field assembly process, so that the existing equipment with problems is upgraded and reformed, and the air inlet joint 2 is made of alloy steel.
The rotary trolley-drill rod coupler can solve the technical problems of poor sealing effect and easy pressure release of the conventional rotary trolley-drill rod coupler of the rotary drill, ensure stable and smooth operation of the rotary drill, improve the operation and perfection rate of the rotary drill, ensure stable operation of perforation operation, eliminate the defect that the coupler assembly 1 is easy to damage, effectively reduce the labor intensity of workers and improve the operation and perfection rate of the rotary drill; the sealing performance of the coupling assembly 1 is improved, the maintenance operation table is reduced, and the production table efficiency of the drilling machine is improved.
The utility model and its embodiments have been described above by way of illustration and not limitation, and the utility model is illustrated in the accompanying drawings and described in the drawings in which the actual structure is not limited thereto. Therefore, if one of ordinary skill in the art is informed by this disclosure, the structural mode and the embodiments similar to the technical scheme are not creatively designed without departing from the gist of the present utility model.
Claims (5)
1. The utility model provides a rotary drill drilling rod shaft coupling air feed sealing device, includes shaft coupling assembly (1), its characterized in that: an air inlet joint (2), an air inlet sleeve (3), a hollow shaft (4), a nylon plate (5) and a locking pad (6) are sequentially arranged in the coupler assembly (1);
the upper end of the air inlet sleeve (3) is connected with an air inlet joint (2), the lower end of the air inlet sleeve (3) is connected with a hollow shaft (4), and dumbbell seals (301), supporting rings (302) and first O-shaped rings (303) are respectively arranged at the joints of the air inlet sleeve (3) and the hollow shaft (4);
the outer ring of the hollow shaft (4) is sleeved with a nylon plate (5), a locking pad (6) is arranged at the joint of the nylon plate (5) and the hollow shaft (4), a steel ring (601) is arranged on the outer ring of the locking pad (6), and the locking pad (6) is fixed on the shaft body of the hollow shaft (4) through the steel ring (601).
2. The rotary drill pipe coupling air supply sealing device according to claim 1, wherein: the outer ring of the air inlet joint (2) is provided with a second O-shaped ring (201).
3. The rotary drill pipe coupling air supply sealing device according to claim 1, wherein: the air inlet joint (2) is made of alloy steel.
4. The rotary drill pipe coupling air supply sealing device according to claim 1, wherein: the dumbbell seal (301) is arranged on the inner ring of the air inlet sleeve (3), and the supporting ring (302) is arranged between the dumbbell seal (301) and the first O-shaped ring (303) and is positioned in the middle of the inner ring of the air inlet sleeve (3).
5. The rotary drill pipe coupling air supply sealing device according to claim 1, wherein: the inner side of the coupler assembly (1) is provided with a drill rod external thread (101), and the inner side of the hollow shaft (4) is provided with a drill rod internal thread (401).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322470735.8U CN220727108U (en) | 2023-09-12 | 2023-09-12 | Drill rod coupler air supply sealing device of rotary drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322470735.8U CN220727108U (en) | 2023-09-12 | 2023-09-12 | Drill rod coupler air supply sealing device of rotary drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220727108U true CN220727108U (en) | 2024-04-05 |
Family
ID=90496177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322470735.8U Active CN220727108U (en) | 2023-09-12 | 2023-09-12 | Drill rod coupler air supply sealing device of rotary drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220727108U (en) |
-
2023
- 2023-09-12 CN CN202322470735.8U patent/CN220727108U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |