CN108468509B - A kind of ground construction high stable type drilling equipment - Google Patents
A kind of ground construction high stable type drilling equipment Download PDFInfo
- Publication number
- CN108468509B CN108468509B CN201810044437.3A CN201810044437A CN108468509B CN 108468509 B CN108468509 B CN 108468509B CN 201810044437 A CN201810044437 A CN 201810044437A CN 108468509 B CN108468509 B CN 108468509B
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- China
- Prior art keywords
- sides
- fixing seat
- screw rod
- rod
- gear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000005553 drilling Methods 0.000 title claims abstract description 42
- 238000010276 construction Methods 0.000 title claims abstract description 17
- 230000008520 organization Effects 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 4
- 238000009510 drug design Methods 0.000 abstract 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- E21B3/00—Rotary drilling
- E21B3/02—Surface drives for rotary drilling
- E21B3/035—Surface drives for rotary drilling with slipping or elastic transmission
-
- 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
- E21B12/00—Accessories for drilling tools
-
- 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
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of ground construction high stable type drilling equipments, including fixing seat, the two sides of the bottom of the fixing seat are welded with support column, the top two sides of the fixing seat are equipped with the side baffle being vertically arranged, horizontally disposed top plate is connected at the top of two side baffles, the top center position of top plate is equipped with first motor, the two sides of first motor are equipped with the rotating bar with the output axis connection of first motor, one end of rotating bar is equipped with first gear, two sides between the fixing seat and top plate are equipped with screw rod and guide rod, wherein guide rod is four, screw rod is two, and guide rod is set to two-by-two between two screw rods, horizontally disposed lifter plate is threaded between two screw rods, and lifter plate is slidably connected with guide rod.The present invention has rational design, easy to operate, realizes the purpose drilled while going up and down, and drill pipe wear is prevented in lifting process, stability is good, improves the efficiency of drilling and the service life of the device.
Description
Technical field
The present invention relates to drilling technique field more particularly to a kind of ground construction high stable type drilling equipments.
Background technique
In geological prospecting work, the biggish column circular hole of the smaller depth of diameter being drilled to using drilling equipment to underground,
Also known as drilling well.It drills for oil more larger with the bore diameter of natural gas and underground water.Bore diameter and depth size, depend on
The purposes of geological and mineral buried depth and drilling.With drilling device, structure is complicated for existing ground construction, and service performance is more single
One, stability is poor, is typically only capable to enough be rotated, needs artificial assistance to push down on drilling, take time and effort, and influences drilling effect
Rate, using above having some limitations.
Summary of the invention
Technical problems based on background technology are drilled with high stable type the invention proposes a kind of ground construction and are filled
It sets.
A kind of ground construction high stable type drilling equipment, including fixing seat proposed by the present invention, the bottom of the fixing seat
Portion two sides are welded with support column, and the top two sides of the fixing seat are equipped with the side baffle being vertically arranged, two side blocks
Horizontally disposed top plate is connected at the top of plate, the top center position of top plate is equipped with first motor, the two sides of first motor
Be equipped with the rotating bar with the output axis connection of first motor, one end of rotating bar is equipped with first gear, the fixing seat and
Two sides between top plate are equipped with screw rod and guide rod, and wherein guide rod is four, and screw rod is two, and guide rod is set to two-by-two
Between two screw rods, horizontally disposed lifter plate is threaded between two screw rods, and lifter plate is slidably connected with guide rod,
Second gear is installed, and second gear is engaged with first gear at the top of the screw rod, is equipped at the top of the lifter plate
Second motor, the bottom of the lifter plate are connected with the drilling rod being vertically arranged, and the output shaft of one end of drilling rod and the second motor
Connection；
Two sides between the fixing seat and lifter plate are also equipped with firm organization, wherein firm organization include fixed block and
Fixture block, fixed block are set to the two sides of the bottom of lifter plate, and the two sides of the bottom of fixed block are rotatably connected to buffer bar, fixture block two
It is a, and fixture block is set to the top two sides of fixing seat, is connected with cross bar between two fixture blocks, be slidably installed on the outside of cross bar there are two
Movable block, and one end of movable block and buffer bar is rotatablely connected, is also arranged that there are two springs outside cross bar, and two springs distinguish positions
In the mutually separate side of two movable blocks.
Preferably, the top two sides of the fixing seat offer fixing groove, and wherein fixing groove and screw rod are inverted T-shape
Structure is equipped with first bearing in fixing groove, and one end of screw rod extends in fixing groove, and screw rod passes through first bearing and fixation
Seat rotation connection.
Preferably, the screw rod and guide rod are located in Different Plane, and screw rod and two guide rods constitute isoceles triangle
Shape structure.
Preferably, two securing plates are also equipped at the top of the top plate, the middle position of securing plate offers circular hole, circle
Second bearing is installed, and rotating bar is rotatablely connected by second bearing and securing plate in hole.
Preferably, the drilling rod is screw rod, and one end of drilling rod extends to the lower section of fixing seat.
Preferably, the first gear and second gear are angular wheel, and the transmission of first gear and second gear
Than for 1-2:1.
In the present invention, a kind of ground construction passes through first motor drive rotating bar, two with high stable type drilling equipment
A gear and screw rod successively rotate, so that lifter plate moves up and down under the rotary power of screw thread and the orientation of guide rod,
And then the second motor is cooperated to drive drilling rod rotation, it realizes the purpose drilled while going up and down, effectively improves the efficiency of drilling, together
Shi Liyong buffer bar drives movable block to horizontally slip under the action of elasticity, and the pressure of vertical direction is transferred to both sides, is prevented
Lifter plate hurried whereabouts in lifting process damages segment of drillpipe, improves the service life of the device, present invention design
Rationally, easy to operate, realize the purpose drilled while going up and down, and drill pipe wear is prevented in lifting process, stability is good,
Improve the efficiency of drilling and the service life of the device.
Detailed description of the invention
Fig. 1 is the schematic view of the front view that high stable type drilling equipment is used in a kind of ground construction proposed by the present invention；
Fig. 2 is that a kind of detailed structure of the firm organization of ground construction high stable type drilling equipment proposed by the present invention is shown
It is intended to.
In figure: 1 fixing seat, 2 support columns, 3 side baffles, 4 top plates, 5 first motors, 6 rotating bars, 7 first gears, 8 screw rods,
9 guide rods, 10 second gears, 11 lifter plates, 12 second motors, 13 drilling rods, 14 fixed blocks, 15 buffer bars, 16 fixture blocks, 17 cross
Bar, 18 movable blocks, 19 springs.
Specific embodiment
Combined with specific embodiments below the present invention is made further to explain.
Embodiment
Referring to Fig.1-2, a kind of ground construction high stable type drilling equipment, including fixing seat 1, the bottom two of fixing seat 1
Side is welded with support column 2, and the top two sides of fixing seat 1 are equipped with the side baffle 3 being vertically arranged, the top of two side baffles 3
It is connected with horizontally disposed top plate 4, the top center position of top plate 4 is equipped with first motor 5, and the two sides of first motor 5 are all provided with
There is the rotating bar 6 with the output axis connection of first motor 5, one end of rotating bar 6 is equipped with first gear 7, fixing seat 1 and top plate
Two sides between 4 are equipped with screw rod 8 and guide rod 9, and wherein guide rod 9 is four, and screw rod 8 is two, and guide rod 9 is set two-by-two
Between two screw rods 8, horizontally disposed lifter plate 11, and lifter plate 11 and guide rod 9 are threaded between two screw rods 8
It is slidably connected, the top of screw rod 8 is equipped with second gear 10, and second gear 10 is engaged with first gear 7, the top of lifter plate 11
Portion is equipped with the second motor 12, and the bottom of lifter plate 11 is connected with the drilling rod 13 being vertically arranged, and one end of drilling rod 13 and second
The output axis connection of motor 12；
Two sides between fixing seat 1 and lifter plate 11 are also equipped with firm organization, and wherein firm organization includes fixed block 14
With fixture block 16, fixed block 14 is set to the two sides of the bottom of lifter plate 11, and the two sides of the bottom of fixed block 14 are rotatably connected to buffer bar
15, fixture block 16 is two, and fixture block 16 is set to the top two sides of fixing seat 1, is connected with cross bar 17, cross bar between two fixture blocks 16
17 outside is slidably installed, and there are two movable blocks 18, and one end of movable block 18 and buffer bar 15 is rotatablely connected, outside cross bar 17 also
Spring 19 there are two being arranged, and two springs 19 are located at two mutually separate sides of movable block 18.
In the present embodiment, the top two sides of fixing seat 1 offer fixing groove, and wherein fixing groove and screw rod 8 are the word of falling T
Shape structure is equipped with first bearing in fixing groove, and one end of screw rod 8 extends in fixing groove, and screw rod 8 by first bearing with
Fixing seat 1 is rotatablely connected, and screw rod 8 and guide rod 9 are located in Different Plane, and screw rod 8 and two guide rods 9 constitute isoceles triangle
Shape structure, the top of top plate 4 are also equipped with two securing plates, and the middle position of securing plate offers circular hole, is equipped in circular hole
Second bearing, and rotating bar 6 is rotatablely connected by second bearing and securing plate, drilling rod 13 are screw rod, and one end of drilling rod 13
Extend to the lower section of fixing seat 1, first gear 7 and second gear 10 are angular wheel, and first gear 7 and second gear 10
Transmission ratio be 1-2:1.
In the present embodiment, when work, passes through first motor 5 and drive rotating bar 6, first gear 7, second gear 10 and screw rod
8 successively rotate, so that lifter plate 11 moves up and down under the rotary power of screw thread and the orientation of guide rod 9, and then cooperate
Second motor 12 drives drilling rod 13 to rotate, and realizes the purpose drilled while going up and down, and effectively improves the efficiency of drilling, while benefit
With buffer bar 15 under the elastic reaction of spring 19, movable block 18 is driven to horizontally slip outside cross bar 17, by the pressure of vertical direction
Power is transferred to the both sides of horizontal direction, prevents the hurried whereabouts in lifting process of lifter plate 11 from damaging to 13 part of drilling rod,
Improve the service life of the device.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (6)
1. a kind of ground construction high stable type drilling equipment, including fixing seat (1), which is characterized in that the fixing seat (1)
Two sides of the bottom are welded with support column (2), and the top two sides of the fixing seat (1) are equipped with the side baffle (3) being vertically arranged, and two
It is connected with horizontally disposed top plate (4) at the top of a side baffle (3), the top center position of top plate (4) is equipped with first
Motor (5), the two sides of first motor (5) are equipped with and the rotating bar (6) of the output axis connection of first motor (5), rotating bar (6)
One end be equipped with first gear (7), the two sides between the fixing seat (1) and top plate (4) are equipped with screw rod (8) and guide rod
(9), wherein guide rod (9) is four, and screw rod (8) is two, and guide rod (9) is set between two screw rods (8) two-by-two, two
It is threaded between screw rod (8) horizontally disposed lifter plate (11), and lifter plate (11) is slidably connected with guide rod (9), institute
It states and is equipped at the top of screw rod (8) second gear (10), and second gear (10) is engaged with first gear (7), the lifter plate
(11) it being equipped at the top of the second motor (12), the bottom of the lifter plate (11) is connected with the drilling rod (13) being vertically arranged, and
One end of drilling rod (13) and the output axis connection of the second motor (12)；
Two sides between the fixing seat (1) and lifter plate (11) are also equipped with firm organization, and wherein firm organization includes fixing
Block (14) and fixture block (16), fixed block (14) are set to the two sides of the bottom of lifter plate (11), and the two sides of the bottom of fixed block (14) turn
Dynamic to be connected with buffer bar (15), fixture block (16) is two, and fixture block (16) is set to the top two sides of fixing seat (1), two fixture blocks
(16) be connected with cross bar (17), be slidably installed on the outside of cross bar (17) there are two movable block (18) between, and movable block (18) with
One end of buffer bar (15) is rotatablely connected, and cross bar (17) is also arranged outside there are two spring (19), and two springs (19) positions respectively
In the mutually separate side of two movable blocks (18).
2. a kind of ground construction high stable type drilling equipment according to claim 1, which is characterized in that the fixing seat
(1) top two sides offer fixing groove, and wherein fixing groove and screw rod (8) are inverted T-shaped structure, are equipped in fixing groove
One end of first bearing, screw rod (8) extends in fixing groove, and screw rod (8) is connected by first bearing and fixing seat (1) rotation
It connects.
3. a kind of ground construction high stable type drilling equipment according to claim 1, which is characterized in that the screw rod
(8) it is located in Different Plane with guide rod (9), and screw rod (8) and two guide rods (9) constitute isosceles triangular structure.
4. a kind of ground construction high stable type drilling equipment according to claim 1, which is characterized in that the top plate
(4) two securing plates are also equipped at the top of, the middle position of securing plate offers circular hole, is equipped with second bearing in circular hole,
And rotating bar (6) is rotatablely connected by second bearing and securing plate.
5. a kind of ground construction high stable type drilling equipment according to claim 1, which is characterized in that the drilling rod
It (13) is screw rod, and one end of drilling rod (13) extends to the lower section of fixing seat (1).
6. a kind of ground construction high stable type drilling equipment according to claim 1, which is characterized in that first tooth
Wheel (7) and second gear (10) are angular wheel, and the transmission ratio of first gear (7) and second gear (10) is 1-2:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810044437.3A CN108468509B (en) | 2018-01-17 | 2018-01-17 | A kind of ground construction high stable type drilling equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810044437.3A CN108468509B (en) | 2018-01-17 | 2018-01-17 | A kind of ground construction high stable type drilling equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108468509A CN108468509A (en) | 2018-08-31 |
| CN108468509B true CN108468509B (en) | 2019-10-29 |
Family
ID=63265959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810044437.3A Active CN108468509B (en) | 2018-01-17 | 2018-01-17 | A kind of ground construction high stable type drilling equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108468509B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109577879B (en) * | 2019-01-16 | 2020-10-23 | 枣庄度秘信息科技有限公司 | Drilling machine for exploration engineering |
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| CN110242224B (en) * | 2019-05-30 | 2020-11-10 | 湖南达道新能源开发有限公司 | A geothermal energy development drilling ground platform |
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| CN112377121B (en) * | 2020-10-30 | 2023-09-08 | 任丘市荣昌石油机械设备制造有限公司 | Multifunctional deep geothermal resource drilling and completion experimental device |
| CN112558170B (en) * | 2020-11-18 | 2024-02-23 | 重庆市二零五勘测设计有限公司 | Three-dimensional geological investigation device and operation method |
| CN112548153A (en) * | 2020-12-15 | 2021-03-26 | 王思琦 | Automatic drilling equipment of ball valve case |
| CN113523356B (en) * | 2021-07-29 | 2022-12-20 | 天长缸盖有限公司 | Cylinder head processing equipment with positioning function |
| CN113585366A (en) * | 2021-08-18 | 2021-11-02 | 南京东大岩土工程勘察设计研究院有限公司 | Pile foundation detection device with protective structure |
| CN113500231B (en) * | 2021-09-08 | 2021-11-12 | 南通海峰家居用品有限公司 | Drilling equipment is used in hardware fitting processing |
| CN117051808A (en) * | 2023-10-13 | 2023-11-14 | 山东航空港建设工程集团有限公司 | Foundation reinforcing device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102401082A (en) * | 2010-09-09 | 2012-04-04 | 上海市南洋模范中学 | Combined buffer pressure reducing device |
| CN103362460A (en) * | 2013-07-24 | 2013-10-23 | 武汉海王机电工程技术公司 | Dislocated support-type centering guide for cased well logger |
| CN205977108U (en) * | 2016-07-25 | 2017-02-22 | 白新宇 | Antidetonation type drilling mechanism convenient to lift adjustment |
| CN106522836A (en) * | 2016-12-20 | 2017-03-22 | 嘉善弘欣化工厂（普通合伙） | High-stability drilling device for building foundation construction |
| CN107342381A (en) * | 2017-07-04 | 2017-11-10 | 合肥青鸾新能源科技有限公司 | One kind is used to transport lithium battery damping base |
| CN107419663A (en) * | 2017-05-20 | 2017-12-01 | 董英山 | A kind of bridge construction damping device |
| CN107489374A (en) * | 2017-07-05 | 2017-12-19 | 刘小华 | A kind of building lot construction adjustable drilling aperture apparatus |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITPC20080033A1 (en) * | 2008-07-16 | 2010-01-17 | Walter Bagassi | DRILLING SYSTEM UNDER THE ROLLING UNIT, AUTOMATED, FOR PETROLEUM, MINERARY AND WATER RESEARCHES, WITH MOTOR HEAD OR SIZE MOVES FROM A SCREW WITHOUT END AND MOTHER SCREW DRIVEN BY ELECTRIC OR HYDRAULIC MOTORS, WITH CONTAINERS AND EXPENSES |
| US10323466B2 (en) * | 2014-08-11 | 2019-06-18 | Pioneer Energy Services Corp. | Drilling rig and method of use |
-
2018
- 2018-01-17 CN CN201810044437.3A patent/CN108468509B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102401082A (en) * | 2010-09-09 | 2012-04-04 | 上海市南洋模范中学 | Combined buffer pressure reducing device |
| CN103362460A (en) * | 2013-07-24 | 2013-10-23 | 武汉海王机电工程技术公司 | Dislocated support-type centering guide for cased well logger |
| CN205977108U (en) * | 2016-07-25 | 2017-02-22 | 白新宇 | Antidetonation type drilling mechanism convenient to lift adjustment |
| CN106522836A (en) * | 2016-12-20 | 2017-03-22 | 嘉善弘欣化工厂（普通合伙） | High-stability drilling device for building foundation construction |
| CN107419663A (en) * | 2017-05-20 | 2017-12-01 | 董英山 | A kind of bridge construction damping device |
| CN107342381A (en) * | 2017-07-04 | 2017-11-10 | 合肥青鸾新能源科技有限公司 | One kind is used to transport lithium battery damping base |
| CN107489374A (en) * | 2017-07-05 | 2017-12-19 | 刘小华 | A kind of building lot construction adjustable drilling aperture apparatus |
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| Publication number | Publication date |
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| CN108468509A (en) | 2018-08-31 |
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