CN114396230B - Square hole rotary drill - Google Patents
Square hole rotary drill Download PDFInfo
- Publication number
- CN114396230B CN114396230B CN202210308348.1A CN202210308348A CN114396230B CN 114396230 B CN114396230 B CN 114396230B CN 202210308348 A CN202210308348 A CN 202210308348A CN 114396230 B CN114396230 B CN 114396230B
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- force transmission
- square hole
- plate
- inner gear
- gear sleeve
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- 230000005540 biological transmission Effects 0.000 claims abstract description 89
- 238000005553 drilling Methods 0.000 claims description 36
- 238000007789 sealing Methods 0.000 claims description 11
- 230000036346 tooth eruption Effects 0.000 claims description 5
- 239000002893 slag Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 6
- 238000003780 insertion Methods 0.000 description 6
- 230000037431 insertion Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/001—Drilling a non circular hole
-
- 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
- E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail 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
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/006—Mechanical motion converting means, e.g. reduction gearings
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/20—Drives for drilling, used in the borehole combined with surface drive
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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)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Earth Drilling (AREA)
Abstract
The application provides a square hole rotary drill which comprises a drill rod, a force transmission plate, an inner gear sleeve, a force transmission gear and a drill bit, wherein the cross section of the drill bit is in a shape of a Reuleaux triangle; the drill rod is connected with a force transmission plate, and the force transmission plate is rotatably connected with the inner gear sleeve around a revolution axis of the inner gear sleeve; the force transmission teeth are meshed with the inner gear sleeve, and the force transmission teeth are eccentrically arranged with the force transmission plate and are rotatably connected around the rotation axis of the force transmission teeth; the transmission ratio of the inner gear sleeve to the force transmission gear is 3/4; the drill bit is connected with the force transmission teeth and is coaxially arranged. The construction of square hole can independently be accomplished, and is efficient, with low costs, the high quality.
Description
Technical Field
The invention relates to the field of rotary excavating machines, in particular to a rotary drilling rig for a square hole.
Background
The drill bit is an important component of the rotary drilling rig and provides drilling for the drilling rig. With the development of times, the advantages of square hole piles are more and more obvious, and the traditional rotary digging can only dig round holes. The existing square hole drill bit applied to foundation construction can only be used for repairing a hole, a drilling tool does not perform circumferential cutting motion in the hole, and only can be used for drilling a round hole firstly and then repairing the round hole into a square shape.
The inventor researches and discovers that the existing rotary drilling machine for drilling square holes has the following defects:
the structure is complex, the efficiency is low, and faults are easy to occur.
Disclosure of Invention
The invention aims to provide a rotary drilling rig for square holes, which is simple in structure, beneficial to processing and manufacturing, low in failure rate and cost, capable of independently completing square hole drilling and high in efficiency.
The embodiment of the invention is realized by the following steps:
the invention provides a square hole rotary drilling rig, which comprises:
the drill bit comprises a drill rod, a force transmission plate, an inner gear sleeve, a force transmission gear and a drill bit with a cross section outline in a shape of a Reuleaux triangle; the drill rod is connected with the force transmission plate, and the force transmission plate is rotatably connected with the inner gear sleeve around a revolution axis of the inner gear sleeve; the force transmission teeth are meshed with the inner gear sleeve, and the force transmission teeth are eccentrically arranged with the force transmission plate and are rotatably connected around the rotation axis of the force transmission teeth; the transmission ratio of the inner gear sleeve to the force transmission gear is 3/4; the drill bit is connected with the force transmission teeth and is coaxially arranged.
In an optional implementation manner, the square hole rotary drilling rig further includes a first rotary support and a first sealing element, a first inner ring of the first rotary support is connected with the force transmission plate, a first outer ring of the first rotary support is connected with the inner gear sleeve, and the first sealing element is arranged between the first inner ring and the first outer ring.
In an optional implementation manner, the square hole rotary drill further includes a follower plate, the follower plate and the inner tooth are rotatably connected around the revolution axis, and the force transmission tooth penetrates through the follower plate and is rotatably connected with the follower plate around the revolution axis.
In an optional implementation manner, the square hole rotary drilling rig further includes a second rotary support and a second sealing element, a second inner ring of the second rotary support is connected with the follower plate, a second outer ring of the second rotary support is connected with the inner gear sleeve, and the second sealing element is arranged between the second inner ring and the second outer ring.
In an alternative embodiment, the force transmission tooth comprises a tooth shaft and a gear ring which are connected, a first end and a second end of the tooth shaft in the axial extension direction of the tooth shaft are spaced from the gear ring in the axial extension direction of the tooth shaft, and the first end is connected with the force transmission plate through a first bearing; the second end is connected to the follower plate via a second bearing.
In an optional embodiment, the square hole rotary drilling rig further comprises a rotation preventing structure, the rotation preventing structure is connected with the inner gear sleeve, and the rotation preventing structure is used for contacting with a hole wall of the square hole to limit the inner gear sleeve to rotate relative to the force transmission gear.
In an alternative embodiment, the anti-rotation structure is provided as a square cylinder.
In an alternative embodiment, the drill bit is detachably connected to the force-transmitting tooth.
In an alternative embodiment, the drill comprises a carrier having a cross-section in the shape of a reuleaux triangle, which is provided with a tap hole, and a plurality of chip teeth, which are each connected to the same end face of the carrier.
In an optional embodiment, a connecting sleeve is arranged on a plate surface of the force transmission plate, which is away from the inner gear sleeve, and the drill rod is inserted into the connecting sleeve.
The embodiment of the invention has the beneficial effects that:
in summary, the square hole rotary drilling rig provided by the embodiment utilizes the power box of the rotary drilling machine to input power to the drill rod during operation, so as to drive the drill rod to rotate. The drill rod drives the force transmission plate and the force transmission teeth eccentrically arranged with the force transmission plate to rotate, in the process, the force transmission plate and the drill rod rotate around the revolution axis of the inner gear sleeve, the force transmission teeth revolve around the revolution axis, and meanwhile, the force transmission teeth are meshed with the inner gear sleeve, the force transmission teeth can also rotate around the rotation axis of the force transmission teeth, and the drill bit is driven to perform corresponding revolution and rotation while revolving and rotating with the force transmission teeth. And because the transmission ratio of the inner gear sleeve and the force transmission teeth is 3/4, the force transmission teeth rotate for one circle when the drill rod rotates for one circle, the drill bit revolves for one circle along with the force transmission teeth, the drill bit rotates for 4/3 circles, the running track of the drill bit is square, and finally the square hole drilling is realized through the drill bit. In the square hole drilling process, manual hole repairing operation is not needed, the labor intensity is low, the efficiency is high, and the hole forming quality is high.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
FIG. 1 is a schematic structural diagram of a square hole rotary drilling rig according to an embodiment of the invention;
FIG. 2 is a schematic cross-sectional structure diagram of a square hole rotary drilling rig according to an embodiment of the invention;
FIG. 3 is a schematic view of a drill bit according to an embodiment of the present invention.
Reference numerals are as follows:
100-a dowel plate; 200-inner gear sleeve; 300-force transmission teeth; 310-a gear shaft; 320-gear ring; 400-a drill bit; 410-a connecting sleeve; 420-a carrier; 421-arc strip; 422-support bar; 423-slag hole; 430-chip teeth; 500-a first slewing bearing; 600-a first seal; 700-a second slew bearing; 800-a second seal; 900-follower plate; 1000-anti-rotation structure.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
At present, when a rotary drilling rig carries out square hole construction, a round hole needs to be drilled firstly, then the hole needs to be repaired manually, and the round hole needs to be repaired into the square hole. Thus, the construction is complicated, the labor intensity is high, and the efficiency is low.
In view of this, the designer has designed a square hole and has dug the brill soon, can independently accomplish the construction of square hole to can bore the square hole of setting for the degree of depth, the construction is convenient, low in labor strength, efficient.
Referring to fig. 1 to 3, in the present embodiment, the square hole rotary drill includes a drill rod (not shown), a force transmission plate 100, an inner gear sleeve 200, a force transmission gear 300, and a drill 400 having a cross-sectional outer contour in a shape of a reuleaux triangle; the drill rod is connected with a force transmission plate 100, and the force transmission plate 100 is rotatably connected with an inner gear sleeve 200 around the revolution axis of the inner gear sleeve 200; the force transmission tooth 300 is meshed with the inner gear sleeve 200, and the force transmission tooth 300 is eccentrically arranged with the force transmission plate 100 and is rotatably connected around the rotation axis of the force transmission tooth 300; the transmission ratio of the inner gear sleeve 200 to the force transmission gear 300 is 3/4; the drill bit 400 is connected to the force transmitting teeth 300 and is coaxially disposed.
The square hole rotary drilling rig provided by the embodiment utilizes a power box of the rotary drilling machine to input power to a drill rod during operation, and the drill rod is driven to rotate. The drilling rod drives the force transmission plate 100 and the force transmission teeth 300 eccentrically arranged with the force transmission plate 100 to rotate, in the process, the force transmission plate 100 and the drilling rod both rotate around the revolution axis of the inner gear sleeve 200, and the force transmission teeth 300 revolve around the revolution axis while being meshed with the inner gear sleeve 200 due to the fact that the force transmission teeth 300 are meshed with the inner gear sleeve 200, the force transmission teeth 300 can also rotate around the rotation axis of the self, and due to the fact that the drill bit 400 and the force transmission teeth 300 are coaxially arranged, the force transmission teeth 300 revolve and rotate while driving the drill bit 400 to perform corresponding revolution and rotation. And, because the transmission ratio of the inner gear sleeve 200 and the force transmission tooth 300 is 3/4, the force transmission tooth 300 rotates for one circle every time the drill rod rotates for one circle, the drill bit 400 revolves for one circle along with the force transmission tooth 300, and the drill bit 400 rotates for 4/3 circles, the running track of the drill bit 400 is square, and finally the drilling of a square hole is realized through the drill bit 400. In the square hole drilling process, manual hole repairing operation is not needed, the labor intensity is low, the efficiency is high, and the hole forming quality is high.
In this embodiment, optionally, the square hole rotary drill further includes a first rotary support 500, a first seal 600, a second rotary support 700, a second seal 800, and a follower plate 900. Inner toothed sleeve 200 has a first mounting end, to which the outer ring of first slewing bearing 500 is fixed, and a second mounting section, in the direction of its axial extent, to which the inner ring of first slewing bearing 500 is fixed, i.e. force transmission plate 100 is rotatably connected to inner toothed sleeve 200 via first slewing bearing 500. The first seal 600 is provided as a seal ring, and the first seal 600 is provided between the inner ring and the outer ring of the first slewing bearing 500. The outer ring of the second pivoting support 700 is fixed to the second mounting end, and the inner ring of the second pivoting support 700 is fixed to the follower plate 900, that is, the follower plate 900 is connected to the inner sleeve 200 through the second pivoting support 700. The axis of rotation of the follower plate 900 is collinear with the axis of rotation of the force transfer plate 100. The second sealing element 800 is provided as a sealing ring, and the second sealing ring is embedded between the inner ring and the outer ring of the second slewing bearing 700. Force transmission teeth 300 extend through follower plate 900 and drill bit 400 is connected to the end of force transmission teeth 300 that extends out of follower plate 900.
In this embodiment, optionally, the force transmission tooth 300 includes a toothed shaft 310 and a toothed ring 320 that are integrally formed, the toothed ring 320 is sleeved outside the toothed shaft 310, and both ends of the toothed shaft 310 on the axis thereof have a distance from the toothed ring 320. For convenience of description, both ends of the pinion 310 in the axial extending direction thereof are a first end and a second end, respectively. The first end is rotatably connected to the force transfer plate 100 by a first bearing. The second end is rotatably connected to the follower plate 900 by a second bearing, and the second end penetrates the follower plate 900 and is connected to the bit 400. The first bearing and the second bearing may each be provided as cone bearings.
It should be understood that in other embodiments, the gear shaft 310 and the gear ring 320 may be provided in a separate body, and the two bodies are separately machined and then assembled into a single body. For example, the ring gear 320 and the pinion 310 are separately machined and then welded together.
Further, the shaft section between the second end and the gear ring 320 is an insertion section, and the cross-sectional outer contour of the insertion section is configured to be non-circular, for example, the cross-sectional outer contour of the insertion section is configured to be regular hexagon, and the insertion section is inserted into the drill 400 and relatively fixed with the drill 400 in the circumferential direction of the gear shaft 310.
In this embodiment, optionally, the drill 400 includes a connecting sleeve 410, a carrier 420 having a cross section in a shape of a reuleaux triangle, and a plurality of cutting teeth 430, the connecting sleeve 410 is fixedly connected to a central position of the carrier 420, the carrier 420 is provided with a slag hole 423, and the plurality of cutting teeth 430 are all connected to a same end surface of the carrier 420. Further, the carrier 420 comprises three arc-shaped strips 421 and three supporting strips 422, the three arc-shaped strips 421 are sequentially connected end to end, the diameter of the circle where the three arc-shaped strips 421 are located is the same, and the arc lengths of the three arc-shaped strips 421 are the same. The three support bars 422 are all located in the area enclosed by the three arc bars 421, one end of each support bar 422 is connected with the joint of the adjacent arc bar 421, the other end is connected with the plug-in connection sleeve 410, and the connection sleeve 410 is plugged in the area enclosed by the three arc bars 421 and is coaxially arranged with the area. The connection sleeve 410 is provided with a plug-in groove, the cross-sectional profile of which is the same as that of the plug-in section, and the plug-in section is plugged in the plug-in groove, so that the gear shaft 310 and the connection sleeve 410 cannot rotate relatively.
It should be understood that the three arc-shaped bars 421 and the three support bars 422 together define three slag holes 423. A plurality of chip teeth 430 are provided on a side of each support strip 422 facing away from the tooth axis 310. A plurality of cutting teeth are also provided on the end surface of the connecting sleeve 410 remote from the pinion shaft 310.
It should be noted that, after the insertion section is inserted into the connection sleeve 410, the insertion section and the connection sleeve 410 may be reinforced by using a bolt or a pin, so as to improve stability. Moreover, the plug-in fit is adopted, so that the assembly and the disassembly are convenient, and the replacement is facilitated.
In this embodiment, optionally, the square hole rotary drilling rig further includes a rotation preventing structure 1000, the rotation preventing structure 1000 is connected to the inner gear sleeve 200, and the rotation preventing structure 1000 is used for contacting with the hole wall of the square hole to limit the inner gear sleeve 200 to rotate relative to the force transmission gear 300.
Optionally, the anti-rotation structure 1000 includes a connecting plate and an anti-rotation square tube, one side of the connecting plate is fixedly connected with the outer peripheral surface of the inner gear sleeve 200, the other side of the connecting plate is fixedly connected with the inner tube wall of the anti-rotation square tube, the connecting plate and the inner gear sleeve 200 are both located in the anti-rotation square tube, and the anti-rotation square tube and the inner gear sleeve 200 are coaxially arranged.
In the drilling process, the outer cylinder wall of the anti-rotation square cylinder is abutted against the wall of the square hole, so that the inner gear sleeve 200 is limited to rotate relative to the square hole, the force transmission gear 300 cannot drive the inner gear sleeve 200 to rotate after receiving torque, the advancing path of the drill bit 400 cannot be influenced, and the forming quality of the square hole is improved.
The square hole rotary drilling rig provided by the embodiment can independently complete drilling operation of the square hole, and is high in efficiency and drilling quality.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a square hole rotary drilling, its characterized in that includes:
the drill bit comprises a drill rod, a force transmission plate, an inner gear sleeve, a force transmission gear and a drill bit with a cross section outline in a shape of a Reuleaux triangle; the drill rod is connected with the force transmission plate, and the force transmission plate is rotatably connected with the inner gear sleeve around a revolution axis of the inner gear sleeve; the force transmission teeth are meshed with the inner gear sleeve, and the force transmission teeth are eccentrically arranged with the force transmission plate and are rotatably connected around the rotation axis of the force transmission teeth; the transmission ratio of the inner gear sleeve to the force transmission gear is 3/4; the drill bit is connected with the force transmission teeth and is coaxially arranged;
the square hole rotary drill further comprises a first slewing bearing and a first sealing element, a first inner ring of the first slewing bearing is connected with the force transmission plate, a first outer ring of the first slewing bearing is connected with the inner gear sleeve, and the first sealing element is arranged between the first inner ring and the first outer ring;
the square hole rotary drill further comprises a follow-up plate, a second rotary support and a second sealing element, the follow-up plate and the inner tooth sleeve are rotatably connected around the revolution axis, and the force transmission tooth penetrates through the follow-up plate and is rotatably connected with the follow-up plate around the revolution axis; a second inner ring of the second slewing bearing is connected with the follower plate, a second outer ring of the second slewing bearing is connected with the inner gear sleeve, and the second sealing element is arranged between the second inner ring and the second outer ring;
the force transmission teeth comprise a tooth shaft and a gear ring which are connected, the first end and the second end of the tooth shaft in the axial extension direction of the tooth shaft are spaced from the gear ring in the axial extension direction of the tooth shaft, and the first end is connected with the force transmission plate through a first bearing; the second end is connected with the follow-up plate through a second bearing;
the square hole rotary drilling rig further comprises a rotation preventing structure, the rotation preventing structure is connected with the inner gear sleeve, and the rotation preventing structure is used for being in contact with the hole wall of the square hole to limit the inner gear sleeve to rotate relative to the force transmission gear.
2. The square hole rotary drill according to claim 1, characterized in that:
the anti-rotation structure is a square cylinder.
3. The square hole rotary drill according to claim 1, characterized in that:
the drill bit is detachably connected with the force transmission tooth.
4. The rotary drilling rig for the square hole according to claim 1, characterized in that:
the drill bit comprises a carrier with a Reuleaux triangle-shaped cross section and a plurality of cutting teeth, the carrier is provided with a slag hole, and the cutting teeth are connected with the same end face of the carrier.
5. The rotary drilling rig for the square hole according to claim 1, characterized in that:
the surface of the force transmission plate, which deviates from the inner gear sleeve, is provided with a connecting sleeve, and the drill rod is inserted into the connecting sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210308348.1A CN114396230B (en) | 2022-03-28 | 2022-03-28 | Square hole rotary drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210308348.1A CN114396230B (en) | 2022-03-28 | 2022-03-28 | Square hole rotary drill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114396230A CN114396230A (en) | 2022-04-26 |
| CN114396230B true CN114396230B (en) | 2022-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210308348.1A Active CN114396230B (en) | 2022-03-28 | 2022-03-28 | Square hole rotary drill |
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| CN (1) | CN114396230B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115839212B (en) * | 2023-02-20 | 2023-06-23 | 中钜(陕西)工程咨询管理有限公司 | Highway building foundation digs device soon |
| CN116241187B (en) * | 2023-05-12 | 2023-07-07 | 北京欧钻科技有限公司 | Square hole drill |
| CN117052294B (en) * | 2023-08-21 | 2024-05-31 | 江苏建院营造股份有限公司 | Multi-shaft hole-forming pile improved construction equipment and construction method thereof |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4074778A (en) * | 1976-07-14 | 1978-02-21 | The United States Of America As Represented By The Secretary Of The Interior | Square hole drill |
| JP2760736B2 (en) * | 1993-09-10 | 1998-06-04 | 日立造船株式会社 | Shield excavator for deformed section |
| JP2006336427A (en) * | 2005-06-06 | 2006-12-14 | Shimizu Corp | Ground agitator and diaphragm wall construction method |
| JP2006336426A (en) * | 2005-06-06 | 2006-12-14 | Shimizu Corp | Tunnel boring machine |
| JP2007126884A (en) * | 2005-11-04 | 2007-05-24 | Shimizu Corp | Excavator |
| JP2007284909A (en) * | 2006-04-13 | 2007-11-01 | Shimizu Corp | Turning mechanism and excavator |
| JP2007327278A (en) * | 2006-06-08 | 2007-12-20 | Shimizu Corp | Rotating mechanism |
| CN103953032A (en) * | 2014-05-15 | 2014-07-30 | 江苏合正能源科技有限公司 | Square cement-mixed pile drilling machine |
| CN103939015A (en) * | 2014-05-15 | 2014-07-23 | 江苏合正能源科技有限公司 | Filling square pile drilling machine |
| CN205520627U (en) * | 2015-12-15 | 2016-08-31 | 上海细瓦精密机械有限公司 | Square hole mills chuck |
| CN106761453B (en) * | 2017-02-13 | 2019-04-19 | 王国富 | Drilling rod and multifunctional drill based on the design of Lay Lip river Triangle Principle |
| CN111535740A (en) * | 2020-06-01 | 2020-08-14 | 广西路桥工程集团有限公司 | Square pile rotary digging device for one-time pore forming |
| CN111691821B (en) * | 2020-06-10 | 2022-03-25 | 济南市市政工程设计研究院（集团）有限责任公司 | Square hole drilling device and working method |
| CN111691833B (en) * | 2020-06-10 | 2022-03-25 | 济南市市政工程设计研究院（集团）有限责任公司 | Long spiral square hole drill rod, drilling device and working method |
| CN214659923U (en) * | 2021-04-08 | 2021-11-09 | 四川沿江攀宁高速公路有限公司 | Square hole drilling tool and rectangular hole drilling tool |
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2022
- 2022-03-28 CN CN202210308348.1A patent/CN114396230B/en active Active
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