CN220504942U - Double-layer barrel drill - Google Patents
Double-layer barrel drill Download PDFInfo
- Publication number
- CN220504942U CN220504942U CN202322065880.8U CN202322065880U CN220504942U CN 220504942 U CN220504942 U CN 220504942U CN 202322065880 U CN202322065880 U CN 202322065880U CN 220504942 U CN220504942 U CN 220504942U
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- China
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- double
- urceolus
- layer barrel
- slag discharging
- barrel drill
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- 238000005553 drilling Methods 0.000 claims abstract description 44
- 239000002893 slag Substances 0.000 claims abstract description 37
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 14
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 14
- 241001330002 Bambuseae Species 0.000 claims abstract description 14
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 14
- 239000011425 bamboo Substances 0.000 claims abstract description 14
- 238000007599 discharging Methods 0.000 claims description 33
- 208000004188 Tooth Wear Diseases 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 6
- 239000011435 rock Substances 0.000 description 51
- 239000012634 fragment Substances 0.000 description 20
- 239000013049 sediment Substances 0.000 description 10
- 238000000605 extraction Methods 0.000 description 4
- 241001074085 Scophthalmus aquosus Species 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 208000008312 Tooth Loss Diseases 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000010438 granite Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000036346 tooth eruption Effects 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The application discloses a double-deck section of thick bamboo bores relates to underground drilling equipment's technical field, including inner tube and urceolus, the urceolus is a pick section of thick bamboo bore, the inner tube is a cone section of thick bamboo bore, the urceolus is with the axle sleeve locate the inner tube outside and be connected with the inner tube, the inner tube sets up the one end of boring the tooth and wears out the urceolus, the urceolus is kept away from the one end that sets up the tooth and is used for linking to each other with the actuating source. This application has and promotes drilling efficiency, is convenient for draw the drilling slag, and reduces construction cost's effect.
Description
Technical Field
The application relates to the technical field of underground drilling equipment, in particular to a double-layer barrel drill.
Background
At present, complex geology is often encountered in the construction process of engineering piles and supporting piles in construction engineering, and especially when hard geology such as medium-breeze boulder, granite, inclined section rock stratum and the like is encountered, double-layer barrel drilling is usually selected for drilling. The double-layer barrel drill comprises an outer layer barrel drill and an inner layer barrel drill, the inner layer barrel drill cuts into the outer layer barrel drill in advance, and the outer layer barrel drill releases rock confining pressure in a follow-up circular cutting manner, so that rotary excavation of rock strata is performed.
The patent document with the authorized bulletin number of CN219012495U discloses a double-layer barrel drill for large-caliber rotary drilling pile rock-socketing construction, which comprises an inner barrel body, an outer barrel body and a rotary drilling bit, wherein an annular cavity is formed between the outer surface of the inner barrel body and the inner surface of the outer barrel body, the rotary drilling bit is installed inside the inner barrel body in a nested manner, the rotary drilling bit is directly connected to the end part of a drill stem of the rotary drilling machine, the lower edge of the rotary drilling bit is lower than the lower edge of the inner barrel body, the rotary drilling bit can improve drilling efficiency, a plurality of slurry holes are further formed in the rotary drilling bit, and the slurry can be used for cleaning drilling holes after being sprayed out through the slurry holes.
However, the rotary drilling bit is required to be additionally arranged after the double-layer barrel drill is arranged, so that the construction cost is increased, the later maintenance difficulty is high, and the installation working time is relatively prolonged.
Disclosure of Invention
In order to promote drilling efficiency, be convenient for draw the drilling slag, and reduce construction cost, this application provides a double-deck section of thick bamboo and bores.
The application provides a double-deck section of thick bamboo bores, adopts following technical scheme:
the double-layer barrel drill comprises an inner barrel and an outer barrel, wherein the outer barrel is a cutting tooth barrel drill, the inner barrel is a roller barrel drill, the outer barrel is coaxially sleeved outside the inner barrel and connected with the inner barrel, one end of each inner barrel provided with drilling teeth penetrates out of the outer barrel, and one end of each outer barrel, far away from the drilling teeth, is used for being connected with a driving source.
Through adopting above-mentioned technical scheme, the inner tube is selected as the roller cone section of thick bamboo and is bored, and roller cone bit crushing capacity is stronger, and drilling speed is faster, can effectively promote drilling efficiency, and the urceolus is selected as the pick section of thick bamboo and is bored, but the circular cutting release rock confining pressure, and the pick can carry out step breakage and grinding drilling to the stratum, further promotes drilling efficiency.
Optionally, the inner cylinder and the outer cylinder are detachably connected.
Through adopting above-mentioned technical scheme, can dismantle the connection between inner tube and the urceolus, the installation cooperation between the urceolus in the convenience to deal with different service scenarios.
Optionally, the urceolus includes the urceolus body, the inner tube includes the urceolus body, urceolus body one end is sealed and has offered a plurality of guide holes, interior barrel one end links to each other with the urceolus body blind end, and partial guide hole and interior barrel inner chamber intercommunication, partial guide hole and interior barrel inner chamber intercommunication.
By adopting the technical scheme, the closed end of the outer barrel body is provided with a plurality of guide holes, and crushed rock can be discharged from the guide holes after entering the barrel drill.
Optionally, a connecting member is connected to the closed end of the outer barrel, and the connecting member is used for being connected to a driving source and capable of being driven to rotate by the driving source.
By adopting the technical scheme, after the driving source is connected with the connecting part, the barrel drill can be driven by the driving source to drill.
Optionally, the inner diameter of the outer cylinder is gradually increased along the direction close to the self drilling tooth, and the diameter of the inner cylinder is kept consistent.
Through adopting above-mentioned technical scheme, the space that forms between urceolus and the inner tube is along being close to urceolus blind end direction and diminish gradually, and after the rock fragment after being broken got into the barrel bore inner space, constantly towards outer barrel blind end removal, by urceolus and inner tube section of thick bamboo wall extrusion gradually, the rock fragment of being convenient for is closely drawn to barrel bore outer space.
Optionally, the outer walls of the inner cylinder and the outer cylinder are provided with guide bars.
By adopting the technical scheme, the outer walls of the inner cylinder and the outer cylinder are provided with the guide bars, the guide bars have the function similar to the reinforcing ribs, and the strength and the rigidity of the inner cylinder and the outer cylinder are enhanced under the condition of not increasing the wall thickness of the inner cylinder and the outer cylinder, so that the cylinder body can be effectively protected.
Optionally, the guide strip is arranged in an uninterrupted spiral shape around the cylinder wall.
By adopting the technical scheme, the guide bars of the cylinder wall can further grind rock strata, the drilling difficulty is reduced, and the spiral guide bars of the cylinder wall of the inner cylinder can guide drilling slag between the inner cylinder and the outer cylinder.
Optionally, the inner wall of the inner cylinder is provided with a slag discharging strip, and the distance from the slag discharging strip to the axis of the inner cylinder is gradually reduced along the direction close to the drilling teeth.
Through adopting above-mentioned technical scheme, when a section of thick bamboo is bored and is got in the rock layer, the sediment strip that sets up in the inner tube can grind the breakage step by step to the rock in the inner tube, breaks the rock into finer fragment, and the sediment strip reduces gradually along being close to the direction of boring the tooth to the distance of inner tube axis, and the sediment strip can provide vertical ascending holding power for the rock fragment in the inner tube, more is favorable to the rock fragment to carry out closely to the driving source end and draws.
Optionally, the sediment strip includes a plurality of sediment rings that set up along inner tube axis direction interval, a plurality of sediment rings are cyclic annular, and the interval sets up in the inner tube inner wall one end of keeping away from the brill tooth, and along being close to brill tooth direction, sediment ring diameter reduces gradually.
Through adopting above-mentioned technical scheme, the sediment strip includes many sediment rings, and the inner tube axis direction sets up on the inner tube section of thick bamboo wall, many sediment rings can increase the area of contact with the interior rock Dan Suikuai of section of thick bamboo, provide bigger holding power for the rock fragment to be favorable to more discharging the rock fragment out of a section of thick bamboo brill.
Optionally, the slag discharging strips are all spirally arranged, and the distance from the slag discharging strips to the axis of the inner cylinder is gradually reduced along the direction close to the drilling teeth.
By adopting the technical scheme, the slag discharging strips are spirally arranged, and besides further grinding and crushing the rock in the inner cylinder, the spiral slag discharging strips are more convenient for extracting the rock fragments.
In summary, the present application includes at least one of the following beneficial effects:
1. the double-layer barrel drilling scheme with the outer barrel as a cutting tooth barrel drill and the inner barrel as a roller cone barrel drill is adopted, so that the efficiency of barrel drilling into rock is higher and the pore-forming quality is better in the drilling process;
2. the continuous guide bars are arranged on the outer cylinder wall of the inner cylinder and the outer cylinder, and are spirally distributed around the cylinder wall, so that the strength and the rigidity of the inner cylinder and the outer cylinder can be enhanced, the cylinder body is effectively protected, meanwhile, broken rocks can be further ground, and slag is discharged through the guide bars;
3. by arranging the slag discharging strips inside the inner barrel, the rock in the inner barrel can be ground and crushed step by step, the rock is crushed into finer fragments, and meanwhile, the tight extraction of the rock fragments in the barrel is facilitated.
Drawings
FIG. 1 is a schematic cross-sectional view of a double-layered barrel drill according to example 1 of the present application;
FIG. 2 is a schematic overall structure of embodiment 1 of the present application;
fig. 3 is a schematic cross-sectional structure of embodiment 2 of the present application.
Reference numerals illustrate: 1. an outer cylinder; 11. cutting pick and tooth drilling; 12. an outer barrel; 2. an inner cylinder; 21. tooth wheel drill teeth; 22. slag discharging strips; 23. an inner cylinder body; 24. a slag discharging ring; 3. a conducting bar; 4. a material guiding hole; 5. an annular space; 6. and a connecting member.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-3.
Example 1:
the embodiment 1 of the application discloses a double-layer barrel drill, refer to fig. 1 and 2, and the double-layer barrel drill includes an outer barrel 1 and an inner barrel 2, wherein the outer barrel 1 is sleeved outside the inner barrel 2 and is detachably connected with the inner barrel 2, for example, by using a bolt. The length of the inner cylinder 2 is longer than that of the outer cylinder 1, and the bottom of the inner cylinder extends out of the outer cylinder 1. The urceolus 1 is a cutting pick barrel and bores, urceolus 1 includes urceolus body 12, and urceolus body 12 one end is sealed and integrated into one piece has connecting piece 6, and urceolus 1 passes through connecting piece 6 and actuating source fixed connection, and a plurality of guide holes 4 have been seted up to the one end that urceolus body 12 set up connecting piece 6, and guide holes 4 are used for discharging the drilling slag, and can balance the inside and outside atmospheric pressure of urceolus body 12, and the drilling of a barrel bore of being convenient for, and the pick that connecting piece 6 one end fixedly connected with a plurality of intervals set up is kept away from to urceolus body 12 bores tooth 11. The inner barrel 2 is a roller cone barrel drill and comprises an inner barrel 23, one end of the inner barrel 23 is detachably connected with the closed end of the outer barrel 1 and is communicated with a part of the guide hole 4, so that the inner space of the inner barrel 2 is communicated with the outside, and a plurality of roller cone drill teeth 21 arranged at intervals are fixedly connected with one end of the inner barrel 23 extending out of the outer barrel 1.
When the rock stratum is drilled, the inner cylinder 2 is longer, the roller cone drill teeth 21 roll grinding rock stratum is drilled in advance, the outer cylinder 1 is followed by circular cutting to release rock block confining pressure, the cutting tooth drill teeth 11 are subjected to step crushing and grinding drilling, the core rate of the inner cylinder 2 is high, the outer cylinder 1 is subjected to graded matching crushing, the drill tooth loss is small, and the drilling rate is high.
Referring to fig. 1 and 2, the outer walls of the outer cylinder body 12 and the inner cylinder body 23 are both fixed with guide bars 3, the guide bars 3 can be screw steel welded on the cylinder wall, the guide bars 3 are continuously and uninterruptedly arranged spirally around the cylinder wall, and the guide bars 3 can enhance the strength and rigidity of the inner cylinder body 1 and effectively protect the cylinder body. The outer barrel 12 gradually increases the diameter of the outer barrel 1 along the direction away from the connecting part 6, the diameter of the inner barrel 2 is consistent, an annular space 5 is formed between the outer barrel 1 and the inner barrel 2, the annular space 5 gradually decreases from the cutting teeth 11 to the connecting part 6, and rock fragments are gradually compacted in the annular space 5, so that extraction is facilitated.
When the rock stratum is drilled, the guide bars 3 on the wall of the outer cylinder 1 grind and crush peripheral rock, and can guide the discharge of rock drilling slag, the guide bars 3 on the outer wall of the inner cylinder 2 grind and crush rock blocks in the annular space 5 between the inner cylinder and the outer cylinder, and crushed rock fragments are discharged from the guide holes 4 at the end part of the outer cylinder 1 along the guide bars 3 on the outer wall of the inner cylinder 2.
Referring to fig. 1, a slag discharging strip 22 is disposed on an inner wall of an inner barrel 2 far from one end of a roller bit 21, the slag discharging strip 22 comprises three slag discharging rings 24 with different inner diameters which are disposed at intervals, the slag discharging rings 24 are annular, the inner diameters of the three slag discharging rings 24 are gradually reduced along a direction close to the roller bit 21, and the slag discharging rings 24 are also screw steels. In other embodiments of the present application, the number of slag discharging rings 24 may be two or more than three, as long as the tight extraction of rock fragments in the inner barrel 2 is facilitated.
After the larger rock blocks enter the inner barrel 2, the slag discharging ring 24 in the inner barrel 2 further grinds and breaks the rock blocks, the larger rock blocks are broken into smaller rock fragments, the rock fragments are easier to discharge from the guide hole 4, meanwhile, the inner diameter of the slag discharging ring 24 gradually decreases along the direction close to the cone bit 21, and the slag discharging ring 24 can provide vertical upward supporting force for the rock fragments, so that the rock fragments are easier to discharge.
The implementation principle of the double-layer barrel drill in the embodiment 1 of the application is as follows: the roller cone drill teeth 21 of the inner cylinder 2 roll-grind rock strata and drill in advance, the outer cylinder 1 is followed by circular cutting to release rock block confining pressure, the cutting tooth drill teeth 11 are subjected to step crushing and grinding drilling, the inner cylinder 2 is high in coring rate, the outer cylinder 1 is subjected to step-by-step matching crushing, the drill tooth loss is small, the drilling rate is high, guide bars 3 on the wall of the inner cylinder and the outer cylinder can further grind and crush rock, the rock blocks can be discharged along with the guide bars 3, meanwhile, slag discharging bars 22 in the inner cylinder 2 can crush the rock blocks in the inner cylinder 2, supporting force is also provided for rock fragments, and the rock blocks can be conveniently discharged from the guide holes 4.
Example 2:
example 2 of the present application differs from example 1 in that: referring to fig. 3, the slag discharging strips 22 on the inner wall of the inner cylinder 2 are spirally arranged, and the distance from the slag discharging strips 22 to the axis of the inner cylinder 2 is gradually reduced, and the spirally arranged slag discharging strips 22 not only can further grind and crush the rock blocks in the inner cylinder 2, but also can conveniently guide the ground rock fragments to one side of the outer cylinder 1 close to the connecting part 6, and then discharge the ground rock fragments from the material guiding hole 4. In other embodiments of the present application, the spiral slag discharging strip 22 may also fully cover the inner wall along the length direction of the inner cylinder 2, so as to facilitate the tight extraction and discharge of the rock blocks in the inner cylinder 2.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (10)
1. A double-layer barrel drill, which is characterized in that: including inner tube (2) and urceolus (1), urceolus (1) are pick section of thick bamboo and bore, inner tube (2) are the roller cone section of thick bamboo and bore, urceolus (1) coaxial sleeve is located outside inner tube (2) and is connected with inner tube (2), inner tube (2) set up the one end of boring the tooth wear out urceolus (1), urceolus (1) are kept away from the one end that sets up the tooth and are used for linking to each other with the actuating source.
2. A double-layer barrel drill according to claim 1, wherein: the inner cylinder (2) is detachably connected with the outer cylinder (1).
3. A double-layer barrel drill according to claim 1 or 2, wherein: the outer cylinder (1) comprises an outer cylinder body (12), the inner cylinder (2) comprises an inner cylinder body (23), one end of the outer cylinder body (12) is closed and provided with a plurality of guide holes (4), one end of the inner cylinder body (23) is connected with the closed end of the outer cylinder body (12), part of the guide holes (4) are communicated with the inner cavity of the inner cylinder body (23), and part of the guide holes (4) are communicated with the inner cavity of the outer cylinder body (12).
4. A double-layer barrel drill according to claim 3, wherein: the closed end of the outer barrel body (12) is connected with a connecting part (6), and the connecting part (6) is used for being connected with a driving source and can be driven to rotate by the driving source.
5. A double-layer barrel drill according to claim 1, wherein: the inner diameter of the outer cylinder (1) along the direction close to the self drilling tooth is gradually increased, and the diameter of the inner cylinder (2) is kept consistent.
6. A double-layer barrel drill according to claim 1, wherein: the outer walls of the inner cylinder (2) and the outer cylinder (1) are provided with guide bars (3).
7. A double-layer barrel drill according to claim 6, wherein: the guide strip (3) is arranged in an uninterrupted spiral shape around the cylinder wall.
8. A double-layer barrel drill according to claim 1, wherein: the inner wall of the inner cylinder (2) is provided with a slag discharging strip (22), and the distance from the slag discharging strip (22) to the axis of the inner cylinder (2) is gradually reduced along the direction close to the drilling teeth.
9. A double-layer barrel drill according to claim 8, wherein: the slag discharging strip (22) comprises a plurality of slag discharging rings (24) which are arranged at intervals along the axial direction of the inner cylinder (2), the slag discharging rings (24) are annular, and the inner diameter of the slag discharging rings (24) is gradually reduced along the direction close to the drilling teeth.
10. A double-layer barrel drill according to claim 8, wherein: the slag discharging strip (22) is spirally arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322065880.8U CN220504942U (en) | 2023-08-02 | 2023-08-02 | Double-layer barrel drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322065880.8U CN220504942U (en) | 2023-08-02 | 2023-08-02 | Double-layer barrel drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220504942U true CN220504942U (en) | 2024-02-20 |
Family
ID=89873860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322065880.8U Active CN220504942U (en) | 2023-08-02 | 2023-08-02 | Double-layer barrel drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220504942U (en) |
-
2023
- 2023-08-02 CN CN202322065880.8U patent/CN220504942U/en active Active
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