CN113236170A - Rotary drilling tool for construction of engineering machinery - Google Patents
Rotary drilling tool for construction of engineering machinery Download PDFInfo
- Publication number
- CN113236170A CN113236170A CN202110584980.4A CN202110584980A CN113236170A CN 113236170 A CN113236170 A CN 113236170A CN 202110584980 A CN202110584980 A CN 202110584980A CN 113236170 A CN113236170 A CN 113236170A
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- China
- Prior art keywords
- soil
- drilling tool
- rotary drilling
- wheel
- soil discharging
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Links
- 238000005553 drilling Methods 0.000 title claims abstract description 62
- 238000010276 construction Methods 0.000 title claims abstract description 25
- 239000002689 soil Substances 0.000 claims abstract description 200
- 238000007599 discharging Methods 0.000 claims abstract description 92
- 230000009471 action Effects 0.000 claims abstract description 9
- 239000004568 cement Substances 0.000 claims description 19
- 239000004575 stone Substances 0.000 claims description 13
- 238000001914 filtration Methods 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 4
- 238000007790 scraping Methods 0.000 claims description 3
- 239000011435 rock Substances 0.000 abstract description 20
- 239000000463 material Substances 0.000 abstract description 7
- 230000008859 change Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 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
- E21B27/00—Containers for collecting or depositing substances in boreholes or wells, e.g. bailers, baskets or buckets for collecting mud or sand; Drill bits with means for collecting substances, e.g. valve 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
- 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
Landscapes
- 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)
- Earth Drilling (AREA)
Abstract
The invention discloses a rotary drilling tool for construction of engineering machinery, and particularly relates to the technical field of construction of engineering machinery, wherein the rotary drilling tool comprises a rotary drilling tool body, and is characterized in that: the rotary drilling tool is characterized in that blades are welded on a rotary drilling tool body, a drill rod is fixedly connected to the upper end of the rotary drilling tool body, two groups of soil containing chambers are symmetrically arranged in the rotary drilling tool body, a soil inlet is formed in one side of each soil containing chamber, a soil outlet is formed in the upper portion of each soil containing chamber, a soil guide pipe is fixedly mounted on the soil outlet, and a soil discharge pipe is fixedly mounted on the soil guide pipe. When the rotary drilling tool works, the rotary drilling tool can drill and dig while discharging soil, when in drilling and digging, rock soil enters the soil containing chamber from the soil inlet, the toothed belt is driven to rotate under the driving action of the material conveying motor, the soil conveying toothed plate on the toothed belt conveys the rock soil into the soil guide pipe and falls onto the soil discharging pipe, the first soil discharging wheel, the second soil discharging wheel and the third soil discharging wheel in the soil discharging pipe rotate under the driving action of the soil discharging motor, and the rock soil is scraped out of the soil discharging port through the scraper.
Description
Technical Field
The invention relates to the technical field of construction of engineering machinery, in particular to a rotary drilling tool for construction of the engineering machinery.
Background
Along with the vigorous construction of basic facilities such as highways, high-speed railways and the like in China, rotary drilling rigs are rapidly developed and widely applied, in the construction of basic engineering, the construction in hard rock strata (rock single-shaft saturated compressive strength is more and more than or equal to 30MPa) is required, in the past, the construction aiming at the hard rock strata mainly utilizes impact drilling to drill, but is limited by the construction period, the requirements of environmental protection and the like, and the market limitation of the impact drilling is more obvious, so that the conventional construction method adopts the tooth wheel barrel drilling to drill in advance, an annular groove is opened on the construction surface, and after the rock is drilled to a certain depth, a rotary drilling tool (generally a rock-embedded double-bottom sand scooping bucket) needs to be used for drilling rock soil inside the annular groove.
The conventional rotary drilling tool does not have an active soil discharging function during drilling, so that the rotary drilling tool for engineering machinery construction is provided to solve the problems in the industry.
Disclosure of Invention
In order to overcome the above defects in the prior art, an embodiment of the present invention provides a rotary drilling tool for construction of engineering machinery, so as to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an engineering machine tool construction is with digging drilling tool soon, includes to dig the brill cutter body soon, its characterized in that: the rotary drilling tool comprises a rotary drilling tool body and is characterized in that blades are welded on the rotary drilling tool body, a drill rod is fixedly connected to the upper end of the rotary drilling tool body, two groups of soil containing chambers are symmetrically arranged in the rotary drilling tool body, a soil inlet is formed in one side of each soil containing chamber, a soil outlet is formed in the upper side of each soil containing chamber, a soil guide pipe is fixedly mounted above the soil outlet, a soil discharging pipe is fixedly mounted on the soil guide pipe, a soil discharging port is formed in one end of the soil discharging pipe, a conveying motor is fixedly mounted in the soil discharging pipe, an active wheel is fixedly mounted at the output end of the conveying motor, a wheel shaft is rotatably mounted below the soil containing chambers, a driven wheel is fixedly mounted on the wheel shaft, a toothed belt is mounted between the driven wheel and the active wheel, a soil conveying toothed plate is fixedly mounted on the surface of the toothed belt, and a soil discharging structure is mounted in the soil discharging pipe.
In a preferred embodiment, the soil discharging structure comprises a support plate fixedly installed in the soil discharging pipe, a soil discharging motor is fixedly installed in the middle of the support plate, and a first soil discharging wheel is fixedly installed at the output end of the soil discharging motor.
In a preferred embodiment, two soil discharging wheel shafts are symmetrically and movably arranged on the supporting plate and positioned on two sides of the soil discharging motor, a second soil discharging wheel and a third soil discharging wheel are fixedly arranged on the soil discharging wheel shafts respectively, and two scraping plates are fixedly and symmetrically arranged on the first soil discharging wheel, the second soil discharging wheel and the third soil discharging wheel.
In a preferred embodiment, a master gear is fixedly mounted at an output end of the soil discharging motor, a first slave gear and a second slave gear are fixedly mounted on a second soil discharging wheel and a third soil discharging wheel respectively, two direction adjusting wheel shafts are symmetrically and movably mounted on the support plate and located on two sides of the soil discharging motor, direction adjusting gears are fixedly mounted on the direction adjusting wheel shafts, the direction adjusting gears are matched and meshed with the master gear, and the direction adjusting gears are matched and meshed with the first slave gear and the second slave gear respectively.
In a preferred embodiment, a large stone filtering structure is fixedly installed in the soil inlet, and the large stone filtering structure comprises a net frame and a steel wire mesh fixedly installed in the net frame.
In a preferred embodiment, four groups of grooves are symmetrically formed in two sides of the soil inlet, and cement fixing blocks are fixedly poured in the grooves.
In a preferred embodiment, a through hole is formed in the middle of the cement fixing block, a sliding rod penetrates through the through hole in a movable mode, a fixed pressing plate is fixedly installed at one end of the sliding rod, the fixed pressing plate is movably connected with the net frame, and a handle is fixedly installed at the other end of the sliding rod.
In a preferred embodiment, two first magnetic sheets are fixedly arranged on one side, close to the cement fixing block, of the handle, two second magnetic sheets are fixedly arranged on one side, close to the handle, of the cement fixing block, and the two second magnetic sheets are connected with the first magnetic sheets in an attractive mode.
The invention has the technical effects and advantages that:
1. compared with the prior art, the rotary drilling tool can drill and dig while working and can also discharge soil while working, rock soil enters the soil containing chamber from the soil inlet during drilling and digging, the toothed belt is driven to rotate under the driving action of the material conveying motor, the soil conveying toothed plate on the toothed belt conveys the rock soil into the soil guide pipe and falls onto the soil discharge pipe, the soil discharge wheel I, the soil discharge wheel II and the soil discharge wheel III in the soil discharge pipe rotate under the driving action of the soil discharge motor, and the rock soil is scraped out of the soil discharge port through the scraper.
2. The soil discharging motor controls the main gear to rotate when being driven, the main gear drives the direction regulating gears on two sides to rotate, the two direction regulating gears respectively drive the adjacent first driven gear and the second driven gear to rotate, further the second soil discharging wheel and the third soil discharging wheel rotate and are consistent with the rotation direction of the first soil discharging wheel, the length of the soil discharging pipe can be determined according to the size of the area of a drill hole, and therefore the rock soil can be prevented from being re-drilled in the drill hole.
3. The large stone filtering structure arranged at the soil inlet can prevent large-diameter rocks from entering the soil containing chamber, so that the soil containing chamber can be prevented from being blocked, and the condition that the soil discharging function fails is further caused.
4. Through the fixed action of the cement fixed block that cement made to through the mutual attraction effect of two magnetic sheets and magnetic sheet one, make the firm pressure of holding plate on the net frame, not only can prevent like this that big stone filtration from droing, the slip slide bar that can also be convenient makes holding plate open, thereby dismantlement clearance and change installation that can be convenient when the wire net blocks up or damages.
Drawings
Fig. 1 is an appearance structure schematic diagram of a rotary drilling tool body according to the present invention.
Fig. 2 is a schematic structural view of the soil transporting toothed plate of the present invention.
FIG. 3 is a schematic structural view of a soil discharging structure according to the present invention.
Fig. 4 is a schematic structural view of a large stone filter structure according to the present invention.
The reference signs are: 1. a cutter body of the rotary drilling cutter is dug; 2. a blade; 3. a drill stem; 4. a soil containing chamber; 5. a soil inlet; 6. a soil outlet; 7. a soil guide pipe; 8. a waste pipe; 9. a soil discharge port; 10. a material conveying motor; 11. a driving wheel; 12. a wheel axle; 13. a driven wheel; 14. a toothed belt; 15. a soil conveying toothed plate; 16. a support plate; 17. a soil discharging motor; 18. a main gear; 19. a first soil discharging wheel; 20. adjusting the direction of the wheel axle; 21. a direction adjusting gear; 22. a soil discharge wheel shaft; 23. a first driven gear; 24. a secondary gear II; 25. a second soil discharging wheel; 26. a third soil discharging wheel; 27. a squeegee; 28. a main gear; 29. steel wire mesh; 30. a groove; 31. cement fixing blocks; 32. a through hole; 33. a slide bar; 34. fixing the pressing plate; 35. a handle; 36. a second magnetic sheet; 37. the first magnetic sheet is provided.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The rotary drilling tool for construction of engineering machinery as shown in the attached figures 1-4 comprises a rotary drilling tool body 1, blades 2 are welded on the rotary drilling tool body 1, a drill rod 3 is fixedly connected to the upper end of the rotary drilling tool body 1, two groups of soil containing chambers 4 are symmetrically arranged in the rotary drilling tool body 1, a soil inlet 5 is arranged on one side of each soil containing chamber 4, a soil outlet 6 is arranged above each soil containing chamber 4, a soil guide pipe 7 is fixedly arranged above each soil outlet 6, a soil discharge pipe 8 is fixedly arranged on each soil guide pipe 7, a soil discharge port 9 is arranged at one end of each soil discharge pipe 8, a material conveying motor 10 is fixedly arranged in each soil discharge pipe 8, a driving wheel 11 is fixedly arranged at the output end of each material conveying motor 10, a wheel shaft 12 is rotatably arranged below each soil containing chamber 4, a driven wheel 13 is fixedly arranged on each wheel shaft 12, a toothed belt 14 is arranged between each driven wheel 13 and each driving wheel 11, and a soil conveying toothed plate 15 is fixedly arranged on the surface of each toothed belt 14, when drilling and digging, rock soil enters the soil containing chamber 4 from the soil inlet 5, the toothed belt 14 is driven to rotate under the driving action of the material conveying motor 10, the soil conveying toothed plate 15 on the toothed belt 14 conveys the rock soil into the soil guide pipe 7 and falls onto the soil discharge pipe 8, and the soil discharge structure is arranged in the soil discharge pipe 8.
Furthermore, the soil discharging structure comprises a supporting plate 16 fixedly installed in the soil discharging pipe 8, a soil discharging motor 17 is fixedly installed in the middle of the supporting plate 16, and a first soil discharging wheel 19 is fixedly installed at the output end of the soil discharging motor 17.
Furthermore, two soil discharging wheel shafts 22 are symmetrically and movably arranged on the two sides of the soil discharging motor 17 on the supporting plate 16, a second soil discharging wheel 25 and a third soil discharging wheel 26 are respectively and fixedly arranged on the soil discharging wheel shafts 22, and two scraping plates 27 are respectively and fixedly and symmetrically arranged on the first soil discharging wheel 19, the second soil discharging wheel 25 and the third soil discharging wheel 26.
Further, a master gear 18 is fixedly installed at the output end of the soil discharging motor 17, two direction adjusting wheel shafts 20 are symmetrically and movably installed on the two sides of the soil discharging motor 17 on the supporting plate 16, direction adjusting gears 21 are fixedly installed on the direction adjusting wheel shafts 20, the direction adjusting gears 21 are matched and meshed with the master gear 18, the direction adjusting gears 21 are respectively matched and meshed with the slave gear one 23 and the slave gear two 24, the soil discharging motor 17 controls the master gear 18 to rotate when driving, the master gear 18 drives the direction adjusting gears 21 on the two sides to rotate, the two direction adjusting gears 21 respectively drive the adjacent slave gear one 23 and the slave gear two 24 to rotate, and further the soil discharging wheel two 25 and the soil discharging wheel three 26 rotate and are consistent with the rotation direction of the soil discharging wheel one 19.
Further, a large stone filtering structure is fixedly installed in the soil inlet 5, and the large stone filtering structure comprises a net frame 28 and a steel wire mesh 29 fixedly installed in the net frame 28.
Furthermore, four groups of grooves 30 are symmetrically formed in two sides of the soil inlet 5, and cement fixing blocks 31 are fixedly poured in the grooves 30.
Furthermore, a through hole 32 is formed in the middle of the cement fixing block 31, a sliding rod 33 penetrates through the through hole 32 in a movable manner, a fixed pressing plate 34 is fixedly installed at one end of the sliding rod 33, the fixed pressing plate 34 is movably connected with the net frame 28, and a handle 35 is fixedly installed at the other end of the sliding rod 33.
Furthermore, two first magnetic sheets 37 are fixedly arranged on one side of the handle 35 close to the cement fixing block 31, two second magnetic sheets 36 are fixedly arranged on one side of the cement fixing block 31 close to the handle 35, the second magnetic sheets 36 and the first magnetic sheets 37 are mutually connected in an attraction manner, the large stone filtering structure arranged at the soil inlet 5 can prevent large-diameter rocks from entering the soil containing chamber 4, so that the soil containing chamber 4 can be prevented from being blocked, thereby causing the condition of the waste discharging function failure, through the fixing function of the cement fixing block 31 made of cement, and the fixed pressing plate 34 is firmly pressed on the screen frame 28 through the mutual attraction of the magnetic sheet II 36 and the magnetic sheet I37, thus not only preventing the filtering structure of the large stone from falling off, but also conveniently sliding the sliding rod 33 to open the fixed pressing plate 34, therefore, when the steel wire mesh 29 is blocked or damaged, the steel wire mesh can be conveniently detached, cleaned, replaced and installed.
The working principle of the invention is as follows: the rotary drilling tool of the invention can carry out drilling and digging at the same time and can carry out soil discharging at the same time when in working, rock soil enters the soil containing chamber 4 from the soil inlet 5 during drilling and digging, the toothed belt 14 is driven to rotate under the driving action of the material conveying motor 10, the soil conveying toothed plate 15 on the toothed belt 14 conveys the rock soil to the soil guide pipe 7 and falls onto the soil discharging pipe 8, the soil discharging wheel I19, the soil discharging wheel II 25 and the soil discharging wheel III 26 in the soil discharging pipe 8 are driven to rotate by the soil discharging motor 17 and scrape the rock soil out of the soil discharging port 9 through the scraper 27, the soil discharging motor 17 controls the main gear 18 to rotate when being driven, the main gear 18 drives the direction adjusting gears 21 on two sides to rotate, the two direction adjusting gears 21 respectively drive the adjacent slave gear I23 and the slave gear II 24 to rotate, further the soil discharging wheel II 25 and the soil discharging wheel III 26 to rotate and be consistent with the rotation direction of the soil discharging wheel I19, the length of the soil discharging pipe 8 can be determined according to the area of a drilling hole, can prevent like this that the ground from returning in the drilling, can prevent that the big stone filtration that advances soil mouthful 5 and set up can prevent that the rock of major diameter from getting into flourishing soil room 4, can prevent flourishing soil room 4 from blockking up like this, and then the condition that leads to the function of dumping to become invalid takes place, the fixed action of the cement fixed block 31 of making through cement, and through two mutual attraction effects of magnetic sheet 36 and magnetic sheet 37, make the firm pressure of solid fixed pressing board 34 on net frame 28, not only can prevent that big stone filtration from droing like this, the slip slide bar 33 that can also be convenient, make solid fixed pressing board 34 open, thereby when wire net 29 blocks up or when damaging dismantlement clearance and change installation that can be convenient.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;
and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.
Claims (8)
1. The utility model provides an engineering machine tool construction is with digging drilling tool soon, includes and digs the cutter body (1) soon, its characterized in that: the rotary drilling tool is characterized in that blades (2) are welded on the rotary drilling tool body (1), a drill rod (3) is fixedly connected to the upper end of the rotary drilling tool body (1), two groups of soil containing chambers (4) are symmetrically arranged in the rotary drilling tool body (1), a soil inlet (5) is formed in one side of each soil containing chamber (4), a soil outlet (6) is formed above each soil containing chamber (4), a soil guide pipe (7) is fixedly arranged above each soil outlet (6), a soil discharge pipe (8) is fixedly arranged on each soil guide pipe (7), a soil discharge port (9) is formed in one end of each soil discharge pipe (8), a conveying motor (10) is fixedly arranged in each soil discharge pipe (8), an active wheel (11) is fixedly arranged at the output end of each conveying motor (10), a wheel shaft (12) is rotatably arranged below each soil containing chamber (4), and a driven wheel (13) is fixedly arranged on each wheel shaft (12), install toothed belt (14) between driven wheel (13) and action wheel (11), toothed belt (14) fixed surface installs defeated native pinion rack (15), install the soil discharging structure in soil discharging pipe (8).
2. The rotary drilling tool for construction of engineering machinery according to claim 1, wherein the rotary drilling tool comprises: the dumping structure comprises a supporting plate (16) fixedly installed in a dumping pipe (8), a dumping motor (17) is fixedly installed in the middle of the supporting plate (16), and a dumping wheel I (19) is fixedly installed at the output end of the dumping motor (17).
3. The rotary drilling tool for construction of engineering machinery according to claim 2, characterized in that: the automatic soil discharging device is characterized in that two soil discharging wheel shafts (22) are symmetrically and movably arranged on two sides of the soil discharging motor (17) on the supporting plate (16), a soil discharging wheel II (25) and a soil discharging wheel III (26) are respectively and fixedly arranged on the soil discharging wheel shafts (22), and two scraping plates (27) are respectively and fixedly and symmetrically arranged on the soil discharging wheel I (19), the soil discharging wheel II (25) and the soil discharging wheel III (26).
4. The rotary drilling tool for construction of engineering machinery according to claim 3, wherein the rotary drilling tool comprises: the automatic soil discharging device is characterized in that a master gear (18) is fixedly mounted at the output end of the soil discharging motor (17), a slave gear I (23) and a slave gear II (24) are fixedly mounted on the soil discharging wheel II (25) and the soil discharging wheel III (26) respectively, two direction adjusting wheel shafts (20) are symmetrically and movably mounted on the supporting plate (16) and positioned on two sides of the soil discharging motor (17), direction adjusting gears (21) are fixedly mounted on the direction adjusting wheel shafts (20), the direction adjusting gears (21) are matched and meshed with the master gear (18), and the direction adjusting gears (21) are matched and meshed with the slave gear I (23) and the slave gear II (24) respectively.
5. The rotary drilling tool for construction of engineering machinery according to claim 4, wherein the rotary drilling tool comprises: go into soil mouthful (5) internal fixed mounting have big stone filtration, big stone filtration includes net frame (28) and steel wire net (29) of fixed mounting in net frame (28).
6. The rotary drilling tool for construction of engineering machinery according to claim 5, wherein the rotary drilling tool comprises: four groups of grooves (30) are symmetrically formed in two sides of the soil inlet (5), and cement fixing blocks (31) are fixedly poured in the grooves (30).
7. The rotary drilling tool for construction of engineering machinery according to claim 6, wherein the rotary drilling tool comprises: through-hole (32) have been seted up in the middle of cement fixed block (31), through-hole (32) internalization runs through has slide bar (33), slide bar (33) one end fixed mounting has fixed pressing plate (34), fixed pressing plate (34) link up with net frame (28) activity, slide bar (33) other end fixed mounting has handle (35).
8. The rotary drilling tool for construction of engineering machinery according to claim 7, wherein the rotary drilling tool comprises: the handle (35) is provided with two first magnetic sheets (37) close to one side of the cement fixing block (31), the cement fixing block (31) is provided with two second magnetic sheets (36) close to one side of the handle (35), and the two second magnetic sheets (36) are connected with the first magnetic sheets (37) in an attracting mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110584980.4A CN113236170A (en) | 2021-05-27 | 2021-05-27 | Rotary drilling tool for construction of engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110584980.4A CN113236170A (en) | 2021-05-27 | 2021-05-27 | Rotary drilling tool for construction of engineering machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113236170A true CN113236170A (en) | 2021-08-10 |
Family
ID=77139300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110584980.4A Withdrawn CN113236170A (en) | 2021-05-27 | 2021-05-27 | Rotary drilling tool for construction of engineering machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113236170A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN121556783A (en) * | 2026-01-22 | 2026-02-24 | 南通大学 | Rotary square pile digging drilling tool |
-
2021
- 2021-05-27 CN CN202110584980.4A patent/CN113236170A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN121556783A (en) * | 2026-01-22 | 2026-02-24 | 南通大学 | Rotary square pile digging drilling tool |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210810 |
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| WW01 | Invention patent application withdrawn after publication |