CN109630028A - Oil drilling drill bit - Google Patents
Oil drilling drill bit Download PDFInfo
- Publication number
- CN109630028A CN109630028A CN201811650219.0A CN201811650219A CN109630028A CN 109630028 A CN109630028 A CN 109630028A CN 201811650219 A CN201811650219 A CN 201811650219A CN 109630028 A CN109630028 A CN 109630028A
- Authority
- CN
- China
- Prior art keywords
- drill bit
- connecting rod
- switch block
- drilling
- guard pin
- 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.)
- Pending
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 38
- 239000003208 petroleum Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000007787 solid Substances 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
- E21B10/00—Drill bits
- E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
-
- 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
- E21B17/042—Threaded
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 oil drilling drill bits, including drilling rod, rotation chamber is provided on the inside of drilling rod, switch block is rotatably connected on the inside of rotation chamber, connecting rod is provided on the inside of switch block, the inside middle portion of connecting rod is provided with location hole, the lower end inside of drilling rod is provided with fixation hole, guard pin is plugged on the inside of fixation hole, one end of guard pin is provided with fixing sleeve, the lower end of connecting rod is fixedly connected with drill bit, the oil drilling drill bit, the guard pin of setting is when drill bit encounters large drag forces, it will do it and fracture, drill bit is allowed to be parked in rotation, protect cutting edge, by extracting guard pin, rotary drilling-head counterclockwise, drill bit can be dismantled, facilitate the replacement of drill bit.
Description
Technical field
The present invention relates to technical field of petroleum extraction, specially a kind of oil drilling drill bit.
Background technique
Petroleum is extracted in the place of petroleum storage by oil drilling, by bit in underground drilling bore hole
The place of petroleum storage is squeezed into hole, extracts the petroleum of underground storage out, and drill bit can be worn after long-term use, causes to punch
Efficiency reduces, and existing drill bit is fixed together drill bit and drilling rod by the way of being threadedly coupled, and touches in bit operation
When to rock, strong impact force can be generated, the cutting edge of drill bit is shone into damage, according to scrapping at drill bit, now needs a kind of energy
Enough structures protected to drill bit, prevent drill bit when encountering hard object, crumble cutting edge.
Summary of the invention
The purpose of the present invention is to provide a kind of oil drilling drill bits, to solve the problems, such as that drill bit is easy the cutting edge that crumbles.
To achieve the above object, the invention provides the following technical scheme: a kind of oil drilling drill bit, including drilling rod, institute
It states and is provided with rotation chamber on the inside of drilling rod, be rotatably connected to switch block on the inside of the rotation chamber, be provided on the inside of the switch block
Connecting rod, the inside middle portion of the connecting rod are provided with location hole, and the lower end inside of the drilling rod is provided with fixation hole, described solid
Determine to be plugged with guard pin on the inside of hole, one end of the guard pin is provided with fixing sleeve, and the lower end of the connecting rod is fixedly connected
There is drill bit.
Preferably, threaded hole is provided on the inside of the switch block, the upper end of the connecting rod is provided with thread protrusion, connection
Bar is threadedly coupled with switch block.
Preferably, the guard pin runs through location hole, is slidably connected between guard pin and location hole.
Preferably, it is provided with skewback on the outside of the switch block, is provided with inner cavity on the inside of the drilling rod.
Preferably, T shape pin is slidably connected on the inside of the drilling rod, one end of the T shape pin is slidably connected with inner cavity, institute
That states inner cavity is internally provided with spring.
Compared with prior art, the beneficial effects of the present invention are: the oil drilling drill bit:
1. the guard pin being arranged will do it and fracture when drill bit encounters large drag forces, drill bit is allowed to be parked in rotation, protects sword
Mouthful.
2. rotary drilling-head counterclockwise can dismantle drill bit by extracting guard pin, the replacement of drill bit is facilitated.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is top view of the invention.
In figure: 1, drilling rod；2, chamber is rotated；3, switch block；4, skewback；5, inner cavity；6, T shape pin；7, spring；8, connecting rod；9,
Location hole；10, drill bit；11, fixation hole；12, guard pin；13, fixing sleeve.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, the present invention provides a kind of technical solution: a kind of oil drilling drill bit, including drilling rod 1, drilling rod 1
Inside is provided with rotation chamber 2, and the inside of rotation chamber 2 is rotatably connected to switch block 3, and the inside of switch block 3 is provided with connecting rod 8, switch block 3
Inside be provided with threaded hole, the upper end of connecting rod 8 is provided with thread protrusion, and connecting rod 8 is threadedly coupled with switch block 3, is connecting
When bar 8 rotates clockwise, it can drive switch block 3 to be rotated, connecting rod 8 screws in the inside of switch block 3, the middle part of connecting rod 8
Inside is provided with location hole 9, and the lower end inside of drilling rod 1 is provided with fixation hole 11, and the inside of fixation hole 11 is plugged with guard pin 12,
Guard pin 12 runs through location hole 9, is slidably connected, can limit connecting rod 8 between guard pin 12 and location hole 9, so that
Connecting rod 8 can be fixed, so that connecting rod 8 will not rotate, one end of guard pin 12 is provided with fixing sleeve 13, fixed
13 inlay cards are covered in the left end of guard pin 12, fixing sleeve 13 and 12 close-fitting of guard pin, and the lower end of connecting rod 8 is fixedly connected with drill bit
10, when drill bit 10 rotates, when resistance is excessive, guard pin 12 can fracture, and lose the limitation of guard pin 12, and drill bit 10 can stop
Rotation, prevents the cutting edge of drill bit 10 from crumbling.
Referring to Fig. 2, the outside of switch block 3 is provided with skewback 4, the inside of drilling rod 1 is provided with inner cavity 5, the interior sideslip of drilling rod 1
Dynamic to be connected with T shape pin 6, T shape pin 6 is able to carry out left and right displacement, and one end and the inner cavity 5 of T shape pin 6 are slidably connected, inner cavity 5 it is interior
Portion is provided with spring 7, and spring 7 is in compressive state, and the left end of spring 7 and the right end of T shape pin 6 connect, apply to T shape pin 6
Power to the left, so that fixation is removed when needing to dismantle drill bit 10 in the outside that T shape pin 6 can withstand connecting rod 8 first
Set 13 extracts guard pin 12, and in rotary drilling-head 10 counterclockwise, drill bit 10 will drive connecting rod 8 and be rotated, and connecting rod 8 drives
Switch block 3 is rotated, and T shape pin 6 can block skewback 4, and switch block 3 is hindered to be rotated, then connecting rod 8 will continue to be rotated, by
To the effect of threading force, connecting rod 8 can be detached from switch block 3, and the disassembly of drill bit 10 can be completed.
The present invention is in the specific implementation: when drill bit 10 punches, drilling rod 1 will drive drill bit 10 and be rotated
It is punched, when drill bit 10 encounters hard rock, biggish torsion is generated between drill bit 10 and drilling rod 1, can be fractureed at this time
Guard pin 12 loses the fixed function of guard pin 12, and drill bit 10 can be parked in rotation, can protect the cutting edge of drill bit 10, prevent sword
Mouth crumbles, and when needing replacing drill bit 10, the left end of guard pin 12 is withstood using round bar, and hammer is used to tap round bar, protects
12 stress of guard pin can be displaced to the right, so that guard pin 12 is detached from fixing sleeve 13, is being extracted guard pin 12 to the right, lost protection
The limitation of pin 12 rotary drilling-head 10, drill bit 10 can will drive connecting rod 8 and be rotated counterclockwise, and connecting rod 8 drives switch block 3
It is rotated, T shape pin 6 can block skewback 4, hinder switch block 3 to be rotated, then connecting rod 8 will continue to be rotated, by screw thread
The effect of power, connecting rod 8 can be detached from switch block 3, and the disassembly of drill bit 10 can be completed.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of oil drilling drill bit, including drilling rod (1), it is characterised in that: be provided with rotation chamber on the inside of the drilling rod (1)
(2), it is rotatably connected to switch block (3) on the inside of the rotation chamber (2), is provided with connecting rod (8), institute on the inside of the switch block (3)
The inside middle portion for stating connecting rod (8) is provided with location hole (9), and the lower end inside of the drilling rod (1) is provided with fixation hole (11), institute
It states and is plugged on the inside of fixation hole (11) guard pin (12), one end of the guard pin (12) is provided with fixing sleeve (13), described
The lower end of connecting rod (8) is fixedly connected with drill bit (10).
2. oil drilling drill bit according to claim 1, it is characterised in that: be provided with spiral shell on the inside of the switch block (3)
Pit, the upper end of the connecting rod (8) are provided with thread protrusion, and connecting rod (8) is threadedly coupled with switch block (3).
3. oil drilling drill bit according to claim 1, it is characterised in that: the guard pin (12) runs through location hole
(9), it is slidably connected between guard pin (12) and location hole (9).
4. oil drilling drill bit according to claim 1, it is characterised in that: be provided on the outside of the switch block (3) tiltedly
Block (4) is provided with inner cavity (5) on the inside of the drilling rod (1).
5. oil drilling drill bit according to claim 1, it is characterised in that: be slidably connected on the inside of the drilling rod (1)
There is T shape pin (6), one end and inner cavity (5) of the T shape pin (6) are slidably connected, and the inner cavity (5) is internally provided with spring
(7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811650219.0A CN109630028A (en) | 2018-12-31 | 2018-12-31 | Oil drilling drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811650219.0A CN109630028A (en) | 2018-12-31 | 2018-12-31 | Oil drilling drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109630028A true CN109630028A (en) | 2019-04-16 |
Family
ID=66055043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811650219.0A Pending CN109630028A (en) | 2018-12-31 | 2018-12-31 | Oil drilling drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109630028A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111827868A (en) * | 2020-07-29 | 2020-10-27 | 陶茂龙 | Manual reversing device for petroleum drilling when encountering resistance |
| CN112523699A (en) * | 2020-12-04 | 2021-03-19 | 上海海隆石油钻具有限公司 | Petroleum drill pipe with wear-resistant layer for deep drilling |
-
2018
- 2018-12-31 CN CN201811650219.0A patent/CN109630028A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111827868A (en) * | 2020-07-29 | 2020-10-27 | 陶茂龙 | Manual reversing device for petroleum drilling when encountering resistance |
| CN112523699A (en) * | 2020-12-04 | 2021-03-19 | 上海海隆石油钻具有限公司 | Petroleum drill pipe with wear-resistant layer for deep drilling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190416 |