CN112031658A - Barrel drill with boulder eccentric extraction cavity teeth - Google Patents
Barrel drill with boulder eccentric extraction cavity teeth Download PDFInfo
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- CN112031658A CN112031658A CN202011014391.4A CN202011014391A CN112031658A CN 112031658 A CN112031658 A CN 112031658A CN 202011014391 A CN202011014391 A CN 202011014391A CN 112031658 A CN112031658 A CN 112031658A
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- latch
- boulder
- inclined plane
- drill main
- barrel drill
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- 238000000605 extraction Methods 0.000 title claims abstract description 58
- 238000005553 drilling Methods 0.000 claims description 10
- 239000004575 stone Substances 0.000 claims description 9
- 239000011435 rock Substances 0.000 abstract description 17
- 238000000034 method Methods 0.000 abstract description 8
- 230000007306 turnover Effects 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 description 6
- 239000002689 soil Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
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Classifications
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- 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
- E21B10/00—Drill bits
-
- 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
- E21B31/00—Fishing for or freeing objects in boreholes or wells
- E21B31/12—Grappling tools, e.g. tongs or grabs
- E21B31/18—Grappling tools, e.g. tongs or grabs gripping externally, e.g. overshot
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Marine Sciences & Fisheries (AREA)
- Earth Drilling (AREA)
Abstract
The invention provides a barrel drill with a boulder eccentric extraction cavity tooth, which comprises a barrel drill main body, wherein a drill rod is coaxially arranged on the top end of the barrel drill main body, particularly, the inner side wall of the cylindrical drill main body is provided with an upper clamping tooth and a lower clamping tooth which are oppositely arranged, the outer side surface of the upper clamping tooth is provided with an upper clamping tooth inclined surface which is gradually close to the inner side wall of the cylindrical drill main body from the top end to the bottom end, the outer side surface of the lower clamping tooth is provided with a lower clamping tooth inclined surface which is gradually close to the inner side wall of the cylindrical drill main body from the top end to the bottom end, the top end of the upper clamping tooth inclined surface is higher than the top end of the lower clamping tooth inclined surface, the bottom end of the lower clamping tooth inclined surface is lower than the bottom end of the upper clamping tooth inclined surface, an orphan eccentric extracting cavity is formed between the upper clamping tooth inclined surface and the lower clamping tooth inclined surface in the cylindrical drill main body, the bottom end of the lower clamping tooth inclined surface is gradually narrowed, and the center C of. The method has the characteristics of high boulder extraction efficiency and quick turnover, and can effectively solve the technical problem that boulders are difficult to drill through and extract due to thick underground rock stratum.
Description
Technical Field
The invention relates to the technical field of constructional engineering, in particular to a barrel drill for extracting boulders in an underground drilling process.
Background
In the existing construction process of building foundation, when larger rock (namely boulder) exists underground, the boulder needs to be taken out from the underground soil layer by a section by adopting a drilling mode, and the general method is as follows: the method comprises the steps of firstly drilling rocks in a soil layer by adopting a cone drill, forming a cylindrical boulder in a pinch roller drill, forming a section by separating the boulder from a whole rock when the cone drill penetrates the rock, withdrawing the cone drill, falling into a barrel drill capable of extracting the boulder, sleeving a barrel drill on the section boulder, clamping the section of the boulder by a boulder extraction mechanism in the barrel drill, lifting the ground, separating the boulder from the barrel drill, and finishing boulder extraction.
The application number 201620390231.2 discloses a drilling massive boulder extraction barrel drill, which comprises a barrel drill main body, wherein a blocking mechanism used for blocking boulders is arranged at the lower part in the barrel drill main body, the blocking mechanism comprises a plurality of elastic rods which are adjacent to the bottom end of the barrel drill main body and are uniformly arranged along the circumferential direction of the inner wall of the barrel drill main body, and gaps between the adjacent elastic rods form boulder inlets. When the cylinder drill body encounters a boulder, the boulder enters the cylinder drill body from the boulder inlet of the arresting mechanism; in the boulder lifting process, the blocking mechanism blocks the boulder to prevent the boulder from falling off, so that the boulder is lifted out of the drill hole; after the boulder is salvaged, the boulder is taken out of the cylindrical drill body. The disadvantages of the boulder extraction barrel drill are that: 1. the blocking mechanism formed by the elastic rod is easy to damage in the process of drilling along with the cylinder drill main body, and is not beneficial to the efficient extraction of the boulder; in addition, after the boulder is fished, the clamping force of the elastic rod of the stopping mechanism on the boulder is difficult to release, so that the boulder is difficult to take out of the cylindrical drill main body, and the boulder extraction efficiency and the use turnover rate of the cylindrical drill are seriously influenced; 2. the blocking mechanism for extracting the boulder is suitable for the boulder which is not very thick, namely the boulder can be extracted when the thickness of the boulder is equivalent to the height in the cylinder drill main body, but when the rock stratum is very thick and is difficult to drill through, the boulder is difficult to segment and is difficult to extract. There is therefore a need for improvement.
Disclosure of Invention
The invention aims to provide a cylindrical drill with a boulder eccentric extraction cavity tooth, which has the characteristics of simple structure, easiness in manufacturing and difficulty in damage, can easily extract boulders from thick underground rocks, is easy to extract the boulders extracted to the ground from the cylindrical drill, has the characteristics of high boulder extraction efficiency and high turnover speed, and is particularly suitable for extracting and constructing the boulders with thick underground rocks.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a barrel drill with boulder is eccentric draws chamber tooth, its is including the barrel drill main part, the barrel drill main part has top end board, bottom for the top, the bottom has the bottom mouth, has the cylindrical structure of cylindrical inner chamber in, and the coaxial drilling rod that is equipped with on the top of barrel drill main part, its characterized in that: the inner side wall of the cylinder drill main body is provided with an upper latch and a lower latch which are oppositely arranged, the inner side surface of the upper latch is connected to the inner side wall of the cylinder drill main body, the outer side surface of the upper latch is provided with an upper latch inclined plane which is gradually close to the inner side wall of the cylinder drill main body from the top end to the bottom end, the inner side surface of the lower latch is connected to the inner side wall of the cylinder drill main body, the outer side surface of the lower latch is provided with a lower latch inclined plane which is gradually close to the inner side wall of the cylinder drill main body from the top end to the bottom end, the top end of the upper latch inclined plane is higher than the top end of the lower latch inclined plane, and the bottom end of the lower latch inclined plane is lower than the bottom end of the upper latch inclined plane, so that an isolated stone eccentric extraction cavity is formed between the upper latch inclined plane and the lower latch inclined plane in the cylinder drill main body, the offset distance between the center C of the isolated stone eccentric extraction cavity and the axis Z of the cylinder drill main body is not more than 0.02 times of, wherein, the center C of the boulder eccentric extraction cavity is the central point of the horizontal distance between the inclined plane of the upper latch and the inclined plane of the lower latch.
In the invention, the upper latch and the lower latch can be respectively of a vertically arranged right-angle triangular plate structure, the inner side surface of the upper latch and the inner side surface of the lower latch are respectively right-angle sides, and the inclined surface of the upper latch and the inclined surface of the lower latch are respectively inclined sides.
In the invention, the upper latch and the lower latch can also be respectively arranged obliquely, and the inclined plane of the lower latch and the inclined plane of the upper latch are respectively arc-shaped surfaces.
According to the optimized scheme, the bottom clamping teeth are arranged on the inner side wall of the cylindrical drill main body and between the corresponding upper clamping teeth and the corresponding lower clamping teeth, the bottom clamping teeth are wholly or partially positioned in the boulder eccentric extraction cavity, and the outer side surfaces of the bottom clamping teeth are provided with bottom clamping tooth inclined surfaces gradually approaching the inner side wall of the cylindrical drill main body from the top end to the bottom end.
The bottom latch can be a vertically arranged right-angle triangular plate structure or an obliquely arranged right-angle triangular plate structure, and the inclined plane of the bottom latch is an arc-shaped surface.
According to the further optimization scheme, the upper latch and the lower latch are the same in size.
The invention has the following prominent substantive features and remarkable progress:
1. according to the invention, the upper latch and the lower latch which are opposite left and right and staggered up and down are adopted to realize the appropriate deviation of the center C of the boulder eccentric extraction cavity and the axial lead Z of the cylinder drill main body, so that when the boulder is drilled by the cylinder drill main body, the drilled boulder is slowly introduced into the boulder eccentric extraction cavity through the upper latch inclined plane and the lower latch inclined plane, a certain radial force is generated on the boulder in the boulder eccentric extraction cavity due to the deviation design, the boulder is radially broken off and separated from underground rock, and then the boulder is extracted through the clamping force of the upper latch and the lower latch on the boulder, so that the technical problem that the boulder is difficult to drill through and extract in a thick underground rock stratum is effectively solved.
2. The upper latch and the lower latch have the characteristics of simple structure, ingenious design, easy manufacture and difficult damage; after the boulder is drilled out of the ground, the boulder can be separated from the main body of the cylindrical drill by properly vibrating the drill rod, so that the boulder extraction efficiency and the use turnover rate of the cylindrical drill are effectively ensured, and the method has the characteristics of simple operation, labor saving and time saving.
3. According to the invention, the contact area between the upper and lower latch teeth and the boulder is increased by the boulder eccentric extraction cavity with the top end gradually narrowed, and the purpose that the boulder can be clamped and extracted only by 2 upper and lower latch teeth is realized; in addition, the invention is further designed to extend the boulder eccentric extraction cavity from the upper latch to the bottom latch through the smaller bottom latch, apply an eccentric force in the Y direction as shown in fig. 3 on the lower part of the boulder eccentric extraction cavity through the bottom latch, play a role in positioning the boulder from the bottom of the boulder eccentric extraction cavity, serve as a stress fulcrum for breaking the boulder off, and cooperate with an eccentric force in the X direction formed on the upper part of the boulder eccentric extraction cavity between the upper latch and the lower latch, when the eccentric force in the X direction of the cylinder drill main body falls to a certain amount, the boulder is broken off near the bottom latch, so that the high efficiency, the stability and the reliability in the boulder drilling process are effectively ensured; the upper latch, the lower latch and the bottom latch are further designed to be inclined so as to strengthen the clamping force on the boulder and ensure the extraction of the boulder.
Drawings
Fig. 1 and 2 are schematic cross-sectional views of a barrel drill having a boulder eccentric extraction cavity tooth in this example 1.
Fig. 3 and 4 are schematic diagrams illustrating the working principle of the barrel drill with the boulder eccentric extraction cavity teeth in the embodiment 1.
Fig. 5 is a schematic view showing the use state of the barrel drill with the boulder eccentric extraction cavity teeth in the embodiment 1.
Fig. 6 is a schematic bottom view of the barrel drill with the solitary stone eccentric extraction cavity teeth of this example 2.
Fig. 7 is a schematic cross-sectional view of a barrel drill with a boulder eccentric extraction cavity tooth of this example 2.
Detailed Description
The invention will be further explained with reference to the drawings.
Example 1
Referring to fig. 1 to 5, a barrel drill with a boulder eccentric extraction cavity tooth includes a barrel drill body 1. The cylindrical drill main body 1 is a cylindrical structure with a top end plate 11 at the top end, a bottom end port 12 at the bottom end and a cylindrical inner cavity in the cylindrical drill main body, and a drill rod 13 is coaxially arranged on the top end of the cylindrical drill main body 1.
The inner side wall of the barrel drill main body 1 is provided with an upper latch 2 and a lower latch 3 which are oppositely arranged, and a bottom latch 4 which is correspondingly arranged between the upper latch 2 and the lower latch 3. The inner side surface of the upper latch 2 is connected to the inner side wall of the cylindrical drill body 1, and the outer side surface is provided with an upper latch inclined surface 21 which is gradually close to the inner side wall of the cylindrical drill body 1 from the top end to the bottom end. The inner side surface of the lower latch 3 is connected to the inner side wall of the cylindrical drill body 1, and the outer side surface is provided with a lower latch inclined surface 31 which is gradually close to the inner side wall of the cylindrical drill body 1 from the top end to the bottom end. The outer side surface of the bottom latch 4 is provided with a bottom latch inclined surface 41 which is gradually close to the inner side wall of the cylinder drill main body 1 from the top end to the bottom end.
In this embodiment, go up latch 2 and latch 3 down and be the right angle triangle plate structure of vertical setting respectively, and both sizes are the same, and end latch 4 also is the right angle triangle plate structure of vertical setting, its size is less than latch 3's size down. The inner side surface of the upper latch 2, the inner side surface of the lower latch 3 and the inner side surface of the bottom latch 4 are right-angled edges respectively, and the upper latch inclined surface 21, the lower latch inclined surface 31 and the bottom latch inclined surface 41 are inclined edges respectively.
The top end of the upper latch inclined plane 21 is higher than the top end of the lower latch inclined plane 31, and the bottom end of the lower latch inclined plane 31 is lower than the bottom end of the upper latch inclined plane 21, so that an isolated stone eccentric extraction cavity 10 is formed between the upper latch inclined plane 21 and the lower latch inclined plane 31 in the barrel drill main body 1, and the upper part of the bottom latch 4 is located in the isolated stone eccentric extraction cavity 10.
The boulder eccentric extraction cavity 10 is gradually narrowed from the bottom end of the lower latch inclined plane 31 to the top end of the upper latch inclined plane 21, the center C of the boulder eccentric extraction cavity 10 deviates from the axial lead Z of the barrel drill main body 1, the deviation distance between the center C of the boulder eccentric extraction cavity 10 and the axial lead Z of the barrel drill main body 1 is not more than 0.02 time of the inner diameter of the barrel drill main body 1, and the center C of the boulder eccentric extraction cavity 10 is the central point of the horizontal distance between the upper latch inclined plane 21 and the lower latch inclined plane 31.
Before the barrel drill with the boulder eccentric extraction cavity teeth of the embodiment is used, firstly, the roller drill is adopted to drill the rock in the soil layer to form the cylindrical boulder according to the prior art, at this time, the boulder cannot be drilled through the rock due to the thicker underground rock to form the boulder into a section, so that by adopting the barrel drill with the boulder eccentric extraction cavity teeth of the embodiment, as shown in fig. 5, the barrel drill main body 1 is gradually dropped and sleeved on the boulder 5, the eccentric force in the Y direction as shown in fig. 3 is applied to the lower part of the boulder eccentric extraction cavity 10 through the bottom latch 4, the boulder 5 is positioned by the bottom of the boulder eccentric extraction cavity 10 to serve as a stressed fulcrum for breaking the boulder 5, and then, as the barrel drill main body 1 gradually drops, the eccentric force in the X direction as shown in fig. 3 is applied to the boulder 5 clamped in the boulder eccentric extraction cavity 10 by utilizing the deviation design of the center C of the boulder eccentric extraction cavity 10 and, the boulder 5 is broken off and separated from the underground rock in the radial direction, namely the horizontal direction, and then the boulder 5 is extracted by utilizing the clamping force of the upper clamping teeth 2, the lower clamping teeth 3 and the bottom clamping teeth 4 on the boulder 5 and separated from the cylinder drill main body 1 on the ground. And then, according to the operation, continuously drilling along the lower cone of the original drilled hole to form a new cylindrical boulder, continuously drilling to obtain the boulder 5 by adopting the cylinder drill with the boulder eccentric extraction cavity teeth, and according to the operation steps, until all the underground rock is extracted, thereby effectively solving the technical problem that the underground rock stratum is very thick and is difficult to drill through to extract the boulder.
Example 2
Referring to fig. 6 and 7, the barrel drill with the boulder eccentric extraction cavity teeth of the present embodiment is different from embodiment 1 in that: in this embodiment, the upper latch 2, the lower latch 3 and the bottom latch 4 are respectively arranged obliquely, and the lower latch inclined plane 31, the upper latch inclined plane 21 and the bottom latch inclined plane 41 are arc-shaped planes, so that the grabbing force on the boulder is enhanced, and the boulder extraction is ensured. When the barrel drill with the boulder eccentric extraction cavity teeth is used, the technical problem that the boulder is difficult to drill through and extract due to the fact that the underground rock stratum is thick can be solved.
Claims (7)
1. The utility model provides a barrel drill with boulder off-centre draws chamber tooth, its is including barrel drill main part (1), barrel drill main part (1) have top end board (11), the bottom has bottom mouth (12), has the cylindrical structure of cylindrical inner chamber in for the top, coaxially is equipped with drilling rod (13) on the top of barrel drill main part (1), its characterized in that: have relative last latch (2) and lower latch (3) that set up on the inside wall of barrel drill main part (1), the medial surface of going up latch (2) is connected on the inside wall of barrel drill main part (1), the lateral surface has and is close to last latch inclined plane (21) of barrel drill main part (1) inside wall gradually to the bottom by the top, the medial surface of lower latch (3) is connected on the inside wall of barrel drill main part (1), the lateral surface has and is close to lower latch inclined plane (31) of barrel drill main part (1) inside wall gradually to the bottom by the top, the top of going up latch inclined plane (21) exceeds the top of lower latch inclined plane (31), and the bottom of lower latch inclined plane (31) is less than the bottom of going up latch inclined plane (21), it draws chamber (10) to make to form boulder off-centre between last latch inclined plane (21) and lower latch inclined plane (31) in barrel drill main part (1), boulder off-centre draws chamber (10) is gradually narrowed by the top of the bottom of lower latch inclined plane (31) to the top inclined plane (21), boulder off-, And the center C of the boulder eccentric extraction cavity (10) deviates from the axial lead Z of the cylindrical drill main body (1), the deviation distance between the center C of the boulder eccentric extraction cavity (10) and the axial lead Z of the cylindrical drill main body (1) is not more than 0.02 time of the inner diameter of the cylindrical drill main body (1), wherein the center C of the boulder eccentric extraction cavity (10) is the central point of the horizontal distance between the upper latch inclined plane (21) and the lower latch inclined plane (31).
2. The barrel drill with solitary stone eccentric extraction pocket teeth of claim 1, wherein: go up latch (2) and latch (3) down and be the right angle triangle plate structure of vertical setting respectively, the medial surface of going up latch (2) and the medial surface of latch (3) down are the right angle side respectively, go up latch inclined plane (21) and lower latch inclined plane (31) and are the hypotenuse respectively.
3. The barrel drill with solitary stone eccentric extraction pocket teeth of claim 1, wherein: go up latch (2) and latch (3) down slant setting respectively, lower latch inclined plane (31) and last latch inclined plane (21) are the arcwall face respectively.
4. A barrel drill having a boulder eccentric extraction cavity tooth as recited in claim 1, 2 or 3, wherein: the bottom latch (4) is arranged between the upper latch (2) and the lower latch (3) on the inner side wall of the barrel drill main body (1), the bottom latch (4) is wholly or partially positioned in the boulder eccentric extraction cavity (10), and the outer side surface of the bottom latch (4) is provided with a bottom latch inclined surface (41) which is gradually close to the inner side wall of the barrel drill main body (1) from the top end to the bottom end.
5. The barrel drill with solitary stone eccentric extraction pocket teeth of claim 4, wherein: the bottom latch (4) is of a vertically arranged right-angle triangular plate structure.
6. The barrel drill with solitary stone eccentric extraction pocket teeth of claim 4, wherein: the bottom latch (4) is obliquely arranged, and the inclined surface (41) of the bottom latch is an arc-shaped surface.
7. A barrel drill having a boulder eccentric extraction cavity tooth as recited in claim 1, 2 or 3, wherein: the upper latch (2) and the lower latch (3) are the same in size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011014391.4A CN112031658A (en) | 2020-09-24 | 2020-09-24 | Barrel drill with boulder eccentric extraction cavity teeth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011014391.4A CN112031658A (en) | 2020-09-24 | 2020-09-24 | Barrel drill with boulder eccentric extraction cavity teeth |
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| Publication Number | Publication Date |
|---|---|
| CN112031658A true CN112031658A (en) | 2020-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011014391.4A Pending CN112031658A (en) | 2020-09-24 | 2020-09-24 | Barrel drill with boulder eccentric extraction cavity teeth |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030116355A1 (en) * | 2001-12-20 | 2003-06-26 | Yoseph Bar-Cohen | Ultrasonic/sonic mechanism of deep drilling (USMOD) |
| CN104929555A (en) * | 2015-05-23 | 2015-09-23 | 中冶集团武汉勘察研究院有限公司 | Rotary excavating coring drilling tool for hard rock strata |
| CN204877276U (en) * | 2015-07-10 | 2015-12-16 | 中铁十七局集团第六工程有限公司 | Dig rig drill bit soon and optimize device |
| CN210918887U (en) * | 2019-11-26 | 2020-07-03 | 北京三一智造科技有限公司 | Rotary drilling tool and rotary drilling rig |
| CN212225110U (en) * | 2020-09-24 | 2020-12-25 | 科学城(广州)建筑工程有限公司 | Barrel drill with boulder eccentric extraction cavity teeth |
-
2020
- 2020-09-24 CN CN202011014391.4A patent/CN112031658A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030116355A1 (en) * | 2001-12-20 | 2003-06-26 | Yoseph Bar-Cohen | Ultrasonic/sonic mechanism of deep drilling (USMOD) |
| CN104929555A (en) * | 2015-05-23 | 2015-09-23 | 中冶集团武汉勘察研究院有限公司 | Rotary excavating coring drilling tool for hard rock strata |
| CN204877276U (en) * | 2015-07-10 | 2015-12-16 | 中铁十七局集团第六工程有限公司 | Dig rig drill bit soon and optimize device |
| CN210918887U (en) * | 2019-11-26 | 2020-07-03 | 北京三一智造科技有限公司 | Rotary drilling tool and rotary drilling rig |
| CN212225110U (en) * | 2020-09-24 | 2020-12-25 | 科学城(广州)建筑工程有限公司 | Barrel drill with boulder eccentric extraction cavity teeth |
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