CN111520080B - Protection device for preventing rotary drilling rig from jamming - Google Patents
Protection device for preventing rotary drilling rig from jamming Download PDFInfo
- Publication number
- CN111520080B CN111520080B CN202010282859.1A CN202010282859A CN111520080B CN 111520080 B CN111520080 B CN 111520080B CN 202010282859 A CN202010282859 A CN 202010282859A CN 111520080 B CN111520080 B CN 111520080B
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- CN
- China
- Prior art keywords
- drill bit
- hole
- drill
- mounting
- rod
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- 238000005553 drilling Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 claims abstract description 8
- 230000001681 protective effect Effects 0.000 claims abstract description 8
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 241001074085 Scophthalmus aquosus Species 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 23
- 239000011435 rock Substances 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000004575 stone Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000010438 granite Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000004576 sand Substances 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
- E21B12/00—Accessories for drilling tools
- E21B12/04—Drill bit protectors
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
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 protection device for preventing a rotary drilling rig from jamming, which is characterized in that a main body structure is a drill bit protection cover with a cylindrical structure, and a drill rod installation hole is formed in the center of the top end of the drill bit protection cover and used for installing a drill rod; the drill bit protection cover is characterized in that 3 drill bit installation operation holes and 1 drill bit control rod hole are formed in the outer side of the drill rod installation hole, the drill bit installation operation holes are arranged in three orthogonal directions at the top of the drill bit protection cover and used as process holes for drill bit installation, and the drill bit control rod hole is used for installing a drill bit control rod; the side surface of the drill bit protective cover is provided with a drill bit mounting pin through hole for mounting a drill bit mounting pin; the inside of drill bit safety cover is provided with 4 buckle baffles for prevent to dig the relative rotation between drill bit and this protection device soon. The drill bit is simple to manufacture, flexible and convenient to install, can be assembled with the drill bit, is less in limited conditions, and can effectively prevent drill clamping accidents caused by unstable hole walls, falling rocks or blocking the top device of the drill bit by large boulders protruding from the hole walls.
Description
Technical Field
The invention relates to the technical field of rotary drilling rigs, in particular to a protection device for preventing the rotary drilling rig from clamping a drill bit.
Background
The engineering construction site is located in a sea filling area, the geological condition is complex, the engineering construction site sequentially comprises a stone filling layer, a plain soil filling layer, silt, silty clay, silt cohesive soil, gravel sand, gravel cohesive soil, fully weathered rock, strongly weathered rock and stroke weathered rock from top to bottom, and the filling stone is stroke weathered slightly weathered granite with the diameter of 200 mm-2000 mm. In the engineering pile foundation construction process, because of the rock filling layer hole wall stone piece is extremely unstable, often drops to dig rig drill bit top soon, causes the card and bores the accident, then damages drill bit, drilling rod lightly, then leads to the drilling rod can't pull up heavily.
Disclosure of Invention
In order to overcome the technical defect that in the prior art, in the construction process of an engineering pile foundation, a hole wall stone block of a rock filling layer is extremely unstable and falls to the top of a drill bit of a rotary drilling rig to cause drill blocking, the invention provides a protection device for preventing the drill bit of the rotary drilling rig from being blocked, which is assembled with the drill bit when in use, so that the purpose of isolating a hole wall rock fall from the drill bit is realized, the damage of the drill bit caused by the blocking of the drill bit by the rock fall is effectively avoided, and the technical problem is solved.
The invention achieves the aim through the following technical scheme, and the protection device for preventing the rotary drilling rig from jamming the drill bit is characterized in that the main structure is a drill bit protection cover with a cylindrical structure, a drill rod installation hole is formed in the center of the top end of the drill bit protection cover and is of a rectangular structure, and a hollow position is used for installing the drill rod.
3 drill bit installation handle holes and 1 drill bit control rod hole have been seted up in the outside of drilling rod mounting hole, are 90 equipartitions on the circumferencial direction, and drill bit installation handle hole sets up in the three position of drill bit safety cover top quadrature, and as the fabrication hole of drill bit installation, drill bit control rod hole is used for installing the drill bit control rod.
The side of the drill bit protective cover is provided with a drill bit mounting pin hole, and the mounting pin hole is a kidney-shaped hole and is used for mounting a drill bit mounting pin.
The inside of drill bit safety cover is provided with 4 buckle baffles, and the buckle baffle is 4 orthogonal directions settings inside the drill bit safety cover for prevent to dig the drill bit soon and take place relative rotation between this protection device.
According to the protection device for preventing the rotary drilling rig from jamming, the drill bit protection cover is made of alloy steel which is made of the same material as the drill bit, the outer diameter of the device is the same as that of the drill bit, and the device is installed at the top of the drill bit.
Generally, compared with the prior art, the technical scheme of the invention can achieve the following beneficial effects: the protection device for preventing the rotary drilling rig from jamming the drill bit is simple to manufacture, flexible and convenient to install, few in limited conditions and capable of being installed together with the drill bit, and can effectively prevent the jamming accidents caused by the fact that unstable rocks on the hole wall fall down or large boulders protruding from the hole wall block the top device of the drill bit, and greatly reduce the jamming accidents in the drilling process of the rotary drilling rig.
Drawings
The following detailed description of embodiments of the invention is provided in conjunction with the appended drawings, in which:
FIG. 1 is a schematic overall structure diagram of a protection device for preventing a rotary drilling rig from jamming of a drill bit according to the invention;
FIG. 2 is a schematic diagram illustrating the effect of the drill bit of the present invention before installation;
FIG. 3 is a schematic diagram illustrating the effect of the installed drill bit of the present invention;
in the figure: 1-drill bit protective cover, 2-drill rod installation hole, 3-installation pin perforation, 4-drill bit installation operation hole, 5-drill bit control rod hole and 6-buckle baffle.
Detailed Description
As shown in fig. 1, which is a schematic view of an overall structure of a protection device for preventing a rotary drilling rig from jamming, the main structure of the protection device is a drill bit protection cover 1 with a cylindrical structure, rocks falling from a hole wall are prevented from contacting a drill bit, a drill rod installation hole 2 is formed in the center of the top end of the drill bit protection cover 1, the drill rod installation hole 2 is of a rectangular structure, a hollow position is used for installing a drill rod, and the rotary drilling rod penetrates through the drill rod installation hole 2 and is connected with the drill bit.
3 drill bit installation operation holes 4 and 1 drill bit control rod hole 5 have been seted up in the outside of drilling rod mounting hole 2, are 90 equipartitions in the circumferencial direction, and drill bit installation operation hole 4 sets up in the three position of 1 top quadrature of drill bit safety cover, and as the fabrication hole of drill bit installation, drill bit control rod hole 5 is used for installing the drill bit control rod, and the drill bit control rod passes drill bit control rod hole 5, leaks 50mm-100mm outward and is used for controlling the drill bit on-off operation.
The side of the drill bit protection cover 1 is provided with a drill bit mounting pin hole 3, and the mounting pin hole 3 is a waist-shaped round hole and is used for mounting a drill bit mounting pin.
The inside of drill bit safety cover 1 is provided with 4 buckle baffles 6, and buckle baffle 6 is 4 orthogonal directions in the inside setting of drill bit safety cover 1 for prevent to dig the drill bit soon and take place relative rotation between this protection device.
In the specific use process of the invention, the assembly method is carried out according to the following steps:
the method comprises the following steps: the drill bit protection cover 1 is lifted to the top of the drill bit by using the matching of a lifting appliance;
step two: rotating the drill bit protection cover 1 to enable the drill bit control rod to penetrate through a drill bit control rod hole 5 in the top of the drill bit protection cover 1, and clamping a buckle baffle 6 on a partition plate in the top of the drill bit;
step three: a drill rod of the rotary drilling rig is installed in place, and a drill rod head penetrates through a drill rod installation hole 2 in the top of a drill bit protection cover 1 and is inserted into an installation part in the top of a drill bit;
step four: using a mounting pin, penetrating a mounting pin through hole 3 on the side surface of the drill bit protective cover 1, and inserting the mounting pin into a mounting hole on the top of a drill bit;
step five: and the drill bit installation operation is completed through the drill bit installation operation hole 4 at the top of the drill bit protection cover 1.
As shown in the figures 2 and 3, the effect schematic diagrams of the front and the back of the protective device for the drill bit of the rotary drilling rig are shown, the purpose of isolating the hole wall rock fall from the drill bit is realized by arranging the drill bit protective cover 1 at the top of the drill bit of the rotary drilling rig, the accidents of drill bit damage, drill bit jamming, drill rod breakage and the like caused by the fact that the drill bit is clamped by the rock fall are effectively avoided, the protective effect is good, and the occurrence rate of the drill bit jamming accidents of the rotary drilling rig is greatly reduced.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (2)
1. The utility model provides a protection device for preventing dig rig soon and block brill, major structure is drill bit safety cover (1) of cylindric structure, its characterized in that:
a drill rod mounting hole (2) is formed in the center of the top end of the drill bit protection cover (1), the drill rod mounting hole (2) is of a rectangular structure, and a hollow position is used for mounting a drill rod;
the drill rod mounting hole (2) is provided with 3 drill bit mounting operation holes (4) and 1 drill bit control rod hole (5) on the outer side, the drill bit mounting operation holes are uniformly distributed in a 90-degree manner in the circumferential direction, the drill bit mounting operation holes (4) are arranged in three orthogonal directions at the top of the drill bit protection cover (1) and used as process holes for mounting drill bits, and the drill bit control rod hole (5) is used for mounting a drill bit control rod;
a drill bit mounting pin through hole (3) is formed in the side face of the drill bit protective cover (1), and the mounting pin through hole (3) is a waist-round hole and is used for mounting a drill bit mounting pin;
the drill bit protection cover is characterized in that 4 buckle baffles (6) are arranged inside the drill bit protection cover (1), and the buckle baffles (6) are arranged in 4 orthogonal directions inside the drill bit protection cover and used for preventing the rotary drilling bit and the protection device from rotating relatively.
2. The protection device for preventing the rotary drilling rig from jamming the drill bit according to claim 1, wherein: the drill bit protection cover (1) is made of alloy steel which is made of the same material as the drill bit, and the outer diameter of the device is the same as that of the drill bit and is arranged at the top of the drill bit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010282859.1A CN111520080B (en) | 2020-04-13 | 2020-04-13 | Protection device for preventing rotary drilling rig from jamming |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010282859.1A CN111520080B (en) | 2020-04-13 | 2020-04-13 | Protection device for preventing rotary drilling rig from jamming |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111520080A CN111520080A (en) | 2020-08-11 |
| CN111520080B true CN111520080B (en) | 2022-04-08 |
Family
ID=71911679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010282859.1A Active CN111520080B (en) | 2020-04-13 | 2020-04-13 | Protection device for preventing rotary drilling rig from jamming |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111520080B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113982490B (en) * | 2021-11-26 | 2024-06-28 | 山东高速路桥装备工程有限公司 | Rotary drilling bit suitable for mudstone stratum and rotary drilling construction method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2477300A (en) * | 2010-01-28 | 2011-08-03 | Cementation Skanska Ltd | Auger storage and transport stand |
| CN103742083A (en) * | 2013-12-25 | 2014-04-23 | 南宁市南北动力有限公司 | Drill stem pipe sleeve assembly for rotary drilling rig |
| CN203584306U (en) * | 2013-10-10 | 2014-05-07 | 徐州徐工基础工程机械有限公司 | Drill bit of rotary drilling rig |
| CN203756036U (en) * | 2014-01-16 | 2014-08-06 | 昆明理工大学 | Vacuum effect prevented rotary drilling rig bit |
| CN106245626A (en) * | 2016-08-15 | 2016-12-21 | 中建三局基础设施工程有限公司 | A kind of hard formation churning driven enters method |
| CN106639888A (en) * | 2016-10-25 | 2017-05-10 | 北京中车重工机械有限公司 | Rotary drilling rig and drilling bucket assembly thereof |
| CN107386963A (en) * | 2017-08-01 | 2017-11-24 | 中国五冶集团有限公司 | A kind of rotary digging bored concrete pile meets big particle diameter cobble drilling construction method and embraces stone bucket and bores |
| CN107605405A (en) * | 2017-11-03 | 2018-01-19 | 宋新祥 | A kind of oil bit |
| CN110130213A (en) * | 2019-05-25 | 2019-08-16 | 中恒宏瑞建设集团有限公司 | A kind of safeguard structure for abutment |
-
2020
- 2020-04-13 CN CN202010282859.1A patent/CN111520080B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2477300A (en) * | 2010-01-28 | 2011-08-03 | Cementation Skanska Ltd | Auger storage and transport stand |
| CN203584306U (en) * | 2013-10-10 | 2014-05-07 | 徐州徐工基础工程机械有限公司 | Drill bit of rotary drilling rig |
| CN103742083A (en) * | 2013-12-25 | 2014-04-23 | 南宁市南北动力有限公司 | Drill stem pipe sleeve assembly for rotary drilling rig |
| CN203756036U (en) * | 2014-01-16 | 2014-08-06 | 昆明理工大学 | Vacuum effect prevented rotary drilling rig bit |
| CN106245626A (en) * | 2016-08-15 | 2016-12-21 | 中建三局基础设施工程有限公司 | A kind of hard formation churning driven enters method |
| CN106639888A (en) * | 2016-10-25 | 2017-05-10 | 北京中车重工机械有限公司 | Rotary drilling rig and drilling bucket assembly thereof |
| CN107386963A (en) * | 2017-08-01 | 2017-11-24 | 中国五冶集团有限公司 | A kind of rotary digging bored concrete pile meets big particle diameter cobble drilling construction method and embraces stone bucket and bores |
| CN107605405A (en) * | 2017-11-03 | 2018-01-19 | 宋新祥 | A kind of oil bit |
| CN110130213A (en) * | 2019-05-25 | 2019-08-16 | 中恒宏瑞建设集团有限公司 | A kind of safeguard structure for abutment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111520080A (en) | 2020-08-11 |
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Effective date of registration: 20221201 Address after: 430000, No. 552, Guanshan Road, Hongshan District, Wuhan City, Hubei Province Patentee after: CHINA CONSTRUCTION THIRD CONSTRUCTION ENGINEERING Co.,Ltd. Patentee after: China Construction Third Engineering Bureau Science and Innovation Industry Development Co.,Ltd. Address before: 430000, No. 552, Guanshan Road, Hongshan District, Wuhan City, Hubei Province Patentee before: CHINA CONSTRUCTION THIRD CONSTRUCTION ENGINEERING Co.,Ltd. |