CN220667472U - Assembled drilling rod connecting device of shield tunnel hand-held type rock drill - Google Patents
Assembled drilling rod connecting device of shield tunnel hand-held type rock drill Download PDFInfo
- Publication number
- CN220667472U CN220667472U CN202322357808.2U CN202322357808U CN220667472U CN 220667472 U CN220667472 U CN 220667472U CN 202322357808 U CN202322357808 U CN 202322357808U CN 220667472 U CN220667472 U CN 220667472U
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- China
- Prior art keywords
- connecting device
- drill rod
- rod connecting
- drill
- rod
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Links
- 238000005553 drilling Methods 0.000 title claims abstract description 48
- 239000011435 rock Substances 0.000 title claims abstract description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000005192 partition Methods 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000000428 dust Substances 0.000 abstract description 10
- 230000000903 blocking effect Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 5
- 238000007599 discharging Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
Classifications
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model belongs to the technical field of rock drilling machine devices, and particularly relates to an assembly type drill rod connecting device of a shield tunnel handheld rock drilling machine, which comprises the following components: the assembled drill rod connecting device comprises an assembled drill rod connecting device, wherein an extension rod is detachably connected to the left end of the assembled drill rod connecting device, a drill rod is detachably connected to the right end of the assembled drill rod connecting device, the drill rod, the assembled drill rod connecting device and the extension rod are coaxially arranged, the diameter of the assembled drill rod connecting device is larger than that of the drill rod and the extension rod, a plurality of grooves are formed in the periphery of the assembled drill rod connecting device at equal intervals, and the grooves penetrate through the assembled drill rod connecting device along the length direction. By utilizing the structures, the assembly type drill rod connecting device of the shield tunnel hand-held rock drill machine has the advantages that the structure is simple and practical, long-distance blast holes can be drilled in a narrow space, rock dust can be effectively discharged, the occurrence of blocking ash is reduced, and therefore the drilling efficiency is improved.
Description
Technical Field
The utility model belongs to the technical field of pneumatic drilling devices, and particularly relates to an assembly type drill rod connecting device of a shield tunnel handheld rock drilling machine.
Background
The hand-held rock drill is a common drilling tool for tunnel construction at present, and particularly aims at drilling by a gun drill in a small space, a large drilling machine cannot enter, and the hand-held air drill with small volume, light weight and flexible operation is advantageous. However, the length of the drill rod of the hand-held rock drill is generally fixed, and in the advanced fracturing process of horizontal drilling blasting of the shield tunnel, the space in the cutter head empty cabin in front of the shield machine is small, the length space is less than 2 meters, the depth of the drill hole is required to be more than 5 meters, and the length of the required drill rod is far greater than the size of the cutter head empty cabin. In order to meet the drilling depth requirements and the working space constraints, fabricated drill rods are used here. However, since the assembled drill rod connects the two short rods together by the connecting device, the diameter of the outer ring at the connecting device is larger than that of the drill rod, ash blocking can be formed in the long-distance drilling process, the discharge of rock dust in the hole is limited, blockage is formed, the drilling speed is reduced, and the drilling duration is prolonged.
Disclosure of Invention
The utility model aims to provide an assembled drill rod connecting device of a shield tunnel handheld rock drill, so as to solve the problems, drill long-distance blast holes in a narrow space, effectively discharge rock dust, reduce the occurrence of blocking ash and improve the drilling efficiency.
In order to achieve the above object, the present utility model provides the following solutions:
a shield tunnel hand held rock drill rig fabricated drill pipe connection device comprising: the assembled drill rod connecting device comprises an extension rod, wherein the left end of the assembled drill rod connecting device is detachably connected with a drill rod, the right end of the assembled drill rod connecting device is detachably connected with a drill rod, the extension rod, the assembled drill rod connecting device and the drill rod are coaxially arranged, the diameter of the assembled drill rod connecting device is larger than that of the extension rod and the drill rod, a plurality of grooves are formed in the periphery of the assembled drill rod connecting device at equal intervals, and the grooves penetrate through the assembled drill rod connecting device along the length direction.
Preferably, the left inner side of the assembled drill rod connecting device is provided with a first internal thread, the right end of the extension rod is provided with an extension rod external thread, the extension rod external thread is in threaded connection with the first internal thread, and the thread directions of the extension rod external thread and the first internal thread are the same as the rotation direction of the extension rod.
Preferably, the inner side of the assembled drill rod connecting device on the right side is provided with a second internal thread, the left end of the drill rod is provided with a drill rod external thread, the second internal thread is in threaded connection with the drill rod external thread, and the thread direction of the second internal thread and the drill rod external thread is the same as the rotation direction of the drill rod.
Preferably, the number of the grooves is four, and the cross section of the groove is arc-shaped.
Preferably, the groove is spiral, the spiral direction of the groove is the same as the rotation direction of the extension rod, a partition plate is arranged on the inner side of the assembled drill rod connecting device, and a through hole is formed in the center of the partition plate.
Preferably, the extension rod left end transmission is connected with the rock drill, rock drill left end fixedly communicates has tuber pipe, water pipe, rock drill bottom rotates and is connected with the gas leg, tuber pipe, water pipe all with the extension rod intercommunication, the extension rod with the drilling rod passes through assembled drilling rod connecting device intercommunication.
Preferably, the grooves are of a spiral structure, and the spiral direction of the spiral grooves is the same as the rotation direction of the drill rod.
Compared with the prior art, the utility model has the following advantages and technical effects:
through equipartition offer a plurality of slot at assembled drilling rod connecting device week side for this device is when drilling, and the produced rock dust of drill bit can outwards be discharged along a plurality of slot, reduces the possibility of card ash, and can not influence the intensity and the firm in connection condition of assembled drilling rod, has discharged the rock dust that the downthehole drilling formed effectively, has accelerated the drilling efficiency of the drilling rod of hand-held type rock drill use assembly type, and application scope is extensive, and the practicality is strong. By utilizing the structures, the assembly type drill rod connecting device of the shield tunnel hand-held rock drill machine has the advantages that the structure is simple and practical, long-distance blast holes can be drilled in a narrow space, rock dust can be effectively discharged, the occurrence of blocking ash is reduced, and therefore the drilling efficiency is improved.
Drawings
For a clearer description of an embodiment of the utility model or of the solutions of the prior art, the drawings that are needed in the embodiment will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art:
FIG. 1 is a schematic view of a part of the structure of the present utility model;
fig. 2 is a schematic view of a part of the construction of a rock drill according to the utility model;
FIG. 3 is a schematic view of the assembled drill pipe connecting device of the present utility model;
FIG. 4 is a cross-sectional view of the assembled drill pipe connection of the present utility model;
reference numerals: 1. an extension rod; 2. an air leg; 3. an air duct; 4. a water pipe; 5. a rock drill; 6. a fabricated drill pipe connection device; 7. a drill rod; 101. an external thread of the extension rod; 601. a first internal thread; 602. a second internal thread; 603. a groove; 604. a partition plate; 701. and (5) drill rod external threads.
Detailed Description
The following description of the embodiments of the present utility model 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 utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.
Referring to fig. 1-4, the present utility model provides a shield tunnel hand-held rock drill rig fabricated drill rod connection device, comprising: the assembled drill rod connecting device 6, the left end of the assembled drill rod connecting device 6 is detachably connected with the extension rod 1, the right end of the assembled drill rod connecting device 6 is detachably connected with the drill rod 7, the extension rod 1, the assembled drill rod connecting device 6 and the drill rod 7 are coaxially arranged, the diameter of the assembled drill rod connecting device 6 is larger than that of the extension rod 1 and the drill rod 7, a plurality of grooves 603 are formed in the periphery of the assembled drill rod connecting device 6 at equal intervals, and the grooves 603 penetrate through the assembled drill rod connecting device 6 along the length direction.
Through equipartition offer a plurality of slot 603 in assembled drilling rod connecting device 6 week side for this device is when drilling, and the produced rock dust of drill bit can outwards be discharged along a plurality of slot 603, reduces the possibility of card ash, and can not influence assembled drilling rod connecting device 6's intensity and firm in connection condition, has discharged the rock dust that the downthehole drilling formed effectively, has accelerated the drilling efficiency of handheld rock drill 5 use assembled extension rod 1, and application scope is extensive, and the practicality is strong.
The assembled drill rod connecting device 6 is preferably 140mm long, 50mm in outer diameter, 8mm in wall thickness and 30mm in inner diameter, the inner diameter is the same as that of the extension rod 1 of the hand-held rock drilling machine 50 holes, and alloy steel which is a common material of drill rods is selected and subjected to quenching treatment.
Further optimizing scheme, the inside of left assembled drilling rod connecting device 6 is equipped with first internal thread 601, and extension rod 1's right-hand member is equipped with extension rod external screw thread 101, extension rod external screw thread 101 and first internal screw thread 601 threaded connection, and extension rod external screw thread 101 is the same with the screw thread direction of first internal screw thread 601 and extension rod 1 rotation direction. When the connecting device is used, the extension rod 1 and the drill rod 7 are required to be screwed into the assembled drill rod connecting device 6 for a certain distance, the extension rod 1 and the drill rod 7 are ensured to be stably connected and mutually abutted, no gap is reserved between the extension rod 1 and the drill rod 7, and therefore the connecting stability is improved. And the corresponding thread direction is also provided so that the extension rod 1 will not fall off the assembly rod connection means 6 when rotated.
Further optimizing scheme, the assembled drilling rod connecting device 6 inboard on right side is equipped with second internal thread 602, and the drilling rod 7 left end is equipped with drilling rod external screw thread 701, and second internal thread 602 and drilling rod external screw thread 701 threaded connection, the screw thread direction of second internal thread 602 and drilling rod external screw thread 701 is the same with extension rod 1 rotation direction.
According to a further optimized scheme, the first internal threads and the second internal threads at two ends of the assembled drill rod connecting device are reverse internal threads. The connection strength of threads at two ends can be increased in the rotation process of the drill rod, and the conditions of loosening and the like can not be generated.
Further optimizing scheme, the number of the grooves 603 is four, and the cross section of each groove 603 is arc-shaped. The arrangement of the arc-shaped grooves and the arrangement of the quantity can balance the rotating resistance and ash discharging effect, so that a good ash discharging effect is obtained, and the arc-shaped structure can well eliminate stress concentration and avoid the damage of the connecting device due to the stress concentration. The trench depth is preferably 3mm.
The groove 603 is spiral-shaped and is formed on the circumferential side of the assembled pipe connecting device 6, and the spiral direction of the groove 603 is the same as the rotation direction of the extension rod 1. And a partition plate 604 is arranged on the inner side of the assembled drill rod connecting device 6, and a through hole is formed in the center of the partition plate 604.
Through setting up spiral type slot 603, can let the rock dust that produces discharge along spiral type slot 603, when rotatory, slot 603 can produce certain boosting effect to lime along with the rotation, and is more smooth and easy stable, and spiral type's setting has better ash discharging effect. The partition plate 604 with the through holes can enable the connection of the extension rod 1 and the drill rod 7 to be more stable, the screwing depth of the extension rod 1 and the drill rod 7 can be controlled more easily, and meanwhile the through holes can ensure the communication of the extension rod 1 and the drill rod 7.
Further optimizing scheme, extension rod 1 left end transmission is connected with rock drill 5, and rock drill 5 left end fixed communication has tuber pipe 3, water pipe 4, and rock drill 5 bottom rotates and is connected with air leg 2, and tuber pipe 3, water pipe 4 all communicate with extension rod 1, and extension rod 1 communicates with drilling rod 7. The air pipe 3 and the water pipe 4 provide wind and water for assisting drilling of the rock drill 5, so that the drill hole drilled by the rock drill 5 can timely discharge rock dust.
In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.
The above embodiments are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope defined by the claims of the present utility model without departing from the design spirit of the present utility model.
Claims (7)
1. The utility model provides a shield tunnel hand-held type rock drill rig fabricated drill rod connecting device which characterized in that includes: assembled drilling rod connecting device (6), assembled drilling rod connecting device (6) left end can be dismantled and be connected with extension rod (1), and the right-hand member can be dismantled and be connected with drilling rod (7), extension rod (1), assembled drilling rod connecting device (6), drilling rod (7) coaxial setting, the diameter of assembled drilling rod connecting device (6) is greater than the diameter of extension rod (1), drilling rod (7), a plurality of slot (603) have been seted up to assembled drilling rod connecting device (6) week side equidistant, slot (603) run through along length direction assembled drilling rod connecting device (6).
2. The assembly type drill rod connecting device of the shield tunnel handheld rock drill according to claim 1, wherein a first internal thread (601) is arranged on the inner side of the assembly type drill rod connecting device (6) on the left side, an external extension rod thread (101) is arranged at the right end of the extension rod (1), the external extension rod thread (101) is in threaded connection with the first internal thread (601), and the thread directions of the external extension rod thread (101) and the first internal thread (601) are the same as the rotation direction of the extension rod (1).
3. The assembled drill rod connecting device of the shield tunnel handheld rock drill according to claim 2, wherein a second internal thread (602) is arranged on the inner side of the assembled drill rod connecting device (6) on the right side, a drill rod external thread (701) is arranged on the left end of the drill rod (7), the second internal thread (602) is in threaded connection with the drill rod external thread (701), and the thread directions of the second internal thread (602) and the drill rod external thread (701) are the same as the rotation direction of the extension rod (1).
4. The assembly type drill rod connecting device of a shield tunnel handheld rock drill according to claim 1, wherein the number of the grooves (603) is four, and the cross section of the grooves (603) is arc-shaped.
5. The assembly type drill rod connecting device of the shield tunnel handheld rock drill machine according to claim 1, wherein the groove (603) is spiral, the spiral direction of the groove (603) is the same as the rotation direction of the extension rod (1), a partition plate (604) is arranged on the inner side of the assembly type drill rod connecting device (6), and a through hole is formed in the center of the partition plate (604).
6. The assembly type drill rod connecting device of the shield tunnel handheld rock drill machine according to claim 1, wherein the left end of the extension rod (1) is in transmission connection with a rock drill (5), the left end of the rock drill (5) is fixedly communicated with an air pipe (3) and a water pipe (4), the bottom end of the rock drill (5) is rotationally connected with an air leg (2), the air pipe (3) and the water pipe (4) are communicated with the extension rod (1), and the extension rod (1) is communicated with a drill rod (7) through the assembly type drill rod connecting device.
7. A shield tunnel hand held rock drill rig fabricated drill rod connection device according to claim 1, characterized in that the groove (603) is of a spiral structure, the spiral direction of the groove (603) being the same as the rotation direction of the extension rod (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322357808.2U CN220667472U (en) | 2023-08-31 | 2023-08-31 | Assembled drilling rod connecting device of shield tunnel hand-held type rock drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322357808.2U CN220667472U (en) | 2023-08-31 | 2023-08-31 | Assembled drilling rod connecting device of shield tunnel hand-held type rock drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220667472U true CN220667472U (en) | 2024-03-26 |
Family
ID=90333482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322357808.2U Active CN220667472U (en) | 2023-08-31 | 2023-08-31 | Assembled drilling rod connecting device of shield tunnel hand-held type rock drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220667472U (en) |
-
2023
- 2023-08-31 CN CN202322357808.2U patent/CN220667472U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |