CN109098666A - A kind of PDC drill bit - Google Patents
A kind of PDC drill bit Download PDFInfo
- Publication number
- CN109098666A CN109098666A CN201810995748.8A CN201810995748A CN109098666A CN 109098666 A CN109098666 A CN 109098666A CN 201810995748 A CN201810995748 A CN 201810995748A CN 109098666 A CN109098666 A CN 109098666A
- Authority
- CN
- China
- Prior art keywords
- wing
- pdc
- drill bit
- spring
- cavity
- 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
- 229920002554 vinyl polymer Polymers 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 1
- 238000005553 drilling Methods 0.000 abstract description 17
- 230000009471 action Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001360 synchronised effect Effects 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
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
-
- 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
- E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
- E21B10/32—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
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 present invention relates to a kind of PDC drill bits, belong to PDC drill bit technical field, including bit feed end, cylinder and connector, the bit feed end is fixedly connected by cylinder with connector, cavity is equipped in the cylinder, the first through hole communicated therewith is equipped at left and right sides of the cavity, the third wing being slidably connected with it is installed inside first through hole, the 3rd PDC tooth and sliding block are installed on the third wing, the first through hole bottom is equipped with sliding slot, the sliding block is arranged in sliding slot, the sliding slot is equipped with the first spring, first spring is arranged on the outside of sliding block, the cavity top is fixedly installed with second spring, the second spring bottom is fixedly connected with push rod；The present invention can also carry out reaming, institute's reaming position is more accurate, and practicability is stronger, and improves drilling efficiency by cooperating moveable third wing not only to may be implemented to drill with the 3rd PDC tooth in inside setting cavity and bascule in drilling.
Description
Technical field
The present invention relates to PDC drill bit technical field, specifically a kind of PDC drill bit.
Background technique
PDC drill bit is the abbreviation of polycrystalline diamond compact bit, is a kind of for the common drilling well of geological drilling industry
Tool comes from spark differentiation, can be also used for the drilling of coal seam drilling exploration digging and oil gas field on coal mine.
Chinese patent notification number is that CN106337656B discloses reaming PDC drill bit in a kind of pressure, and the drill bit is by pressing
Pressure equipment makes bit feed end bounce back, the upper surface synchronous compression spring of cylinder, Distance Shortened between bit feed end and the body of rod,
At this moment effect uplink of the slotted hole of the moving knife wing by axis A, the upper end of four moving knife wings start to extend out, and start to process in datum hole
Middle part is expanded through hole, expands when middle part and takes out drill bit after hole machined meets the requirements, is under spring action when taking out drill bit, forces
So that the body of rod and bit feed end is widened distance, the lower end outer rim at bit feed end is at this moment adjacent on the inside of the moving knife wing, facilitates taking-up, from
And realize and force the reaming inside datum hole, but the drill bit, which needs formerly to have dug, just can be carried out reaming after datum hole, Er Qiekuo
Stress when hole due to the wing rotation at top, will lead to drill bit continuation and inwardly drills, can not accurately carry out reaming, need
It is further improved.
Summary of the invention
The purpose of the present invention is to provide a kind of PDC drill bits, to solve the problems mentioned in the above background technology.
To achieve the above object, the invention provides the following technical scheme:
A kind of PDC drill bit, including bit feed end, cylinder and connector, the bit feed end connect by the way that cylinder and connector are fixed
It connects, cavity is equipped in the cylinder, be equipped with the first through hole communicated therewith at left and right sides of the cavity, in the first through hole
Portion is equipped with the third wing being slidably connected with it, and the 3rd PDC tooth and sliding block are equipped on the third wing, and described first is logical
Hole bottom is equipped with sliding slot, and the sliding block is arranged in sliding slot, and the sliding slot is equipped with the first spring, and the first spring setting exists
On the outside of sliding block, the cavity top is fixedly installed with second spring, and the second spring bottom is fixedly connected with push rod.
As further technical solution of the present invention: it is fixedly installed with the first wing on the right side of the bit feed end, it is described
The first PDC tooth is fixedly connected on first wing；The be fixedly connected with bit feed end is installed on the left of first wing
Two wings are fixedly installed with the 2nd PDC tooth on second wing.
As further technical solution of the invention: the push rod bottom is fixedly installed with fixed block, the fixed block
The fixed link being slidably connected with it, the fixed link penetrator setting are inside installed.
As further technical solution of the invention: being equipped with screw thread on the outside of the connector, be equipped on the outside of the screw thread
The screwed ring screwed togather with it.
As further technical solution of the invention: the cavity bottom is equipped with the second through-hole communicated therewith, described
Drawstring is equipped in second through-hole, described drawstring one end is fixedly connected with fixed block bottom, and the other end is equipped with knot, and the knot is set
It sets on the outside of connector.
As further technical solution of the invention: the drawstring is polyvinyl hawser.
As further technical solution of the invention: the diameter of the first PDC tooth is greater than the diameter of the 2nd PDC tooth.
Compared with prior art, the beneficial effects of the present invention are: by can in inside setting cavity and bascule cooperation
Mobile third wing not only may be implemented to drill with the 3rd PDC tooth, reaming can also be carried out in drilling, institute's reaming position is more
Add accurately, practicability is stronger, and improves drilling efficiency.
Detailed description of the invention
Fig. 1 is the main view of PDC drill bit；
Fig. 2 is the main view of the main view PDC drill bit of PDC drill bit；
Fig. 3 is enlarged diagram at A in Fig. 2.
In figure: 1- bit feed end, 2- cylinder, 3- connector, the first wing of 4-, the first PDC tooth of 5-, the second wing of 6-, 7-
2nd PDC tooth, 8- third wing, the 3rd PDC tooth of 9-, 10- screwed ring, 11- cavity, 12- first through hole, 13- limiting slot, 14-
First spring, 15- second spring, 16- sliding block, 17- push rod, 18- fixed block, 19- fixed link, the second through-hole of 20-, 21- drawstring.
Specific embodiment
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
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.
Embodiment 1
PDC drill bit as shown in Figs. 1-3, including bit feed end 1, cylinder 2 and connector 3, the bit feed end 1 pass through cylinder
2 are fixedly connected with connector 3, and connector 3 is connect with driving device, by connector 3 with cylinder 2 and the brill being fixedly connected with cylinder 2
Head drills to the rotation of inlet side 1；It is equipped with cavity 11 in the cylinder 2, is equipped with and communicates therewith at left and right sides of the cavity 11
First through hole 12, the third wing 8 being slidably connected with it is installed, on the third wing 8 inside first through hole 12
3rd PDC tooth 9 and sliding block 16 are installed, 12 bottom of first through hole is equipped with sliding slot 13, and the sliding block 16 is arranged in sliding slot 13
Interior, the sliding slot 13 is equipped with the first spring 14, and the setting of the first spring 14 is in 16 outside of sliding block, when third wing 8 is from sky
It in chamber 11 when stress, is slided from inside to outside in first through hole 12, makes the 3rd PDC tooth 9 far from cylinder 2, to expand the interior of drilling
Diameter, thus realize the expanded bore at accurate processing middle part, while sliding block 16 compresses the first spring 14, when internal stress removes, the
One spring 14 restores deformation, and sliding block 16 is pushed to reset with third wing 8 and the 3rd PDC tooth 9, thus by PDC drill bit from drilling
Middle taking-up；Second spring 15 is fixedly installed at the top of the cavity 11,15 bottom of second spring is fixedly connected with push rod 17,
When third wing 8 is in reset state, second spring 15 is in drawstring state, when external force suffered by push rod 17 cancels, second spring
15 recovery deformation move upwards push rod 17, in PDC drill bit rotation, push third wing 8 gradually to move out, to realize
Above-mentioned middle part expanded bore.
It is fixedly installed with the first wing 4 on the right side of the bit feed end 1, is fixedly connected with first on first wing 4
PDC tooth 5；The second wing 6 being fixedly connected with 2 bit feed ends 1, second wing 6 are installed on the left of first wing 4
On be fixedly installed with the 2nd PDC tooth 7, rotated by bit feed end 1 with two groups of wings, two groups of PDC teeth made to drill.
17 bottom of push rod is fixedly installed with fixed block 18, is equipped in the fixed block 18 and consolidates with what it was slidably connected
Fixed pole 19,19 penetrator 3 of the fixed link setting, sequentially passes through connector 3 and fixed block 18 by fixed link 19 before drilling
Push rod 17 on fixed block 18 is fixed, it needs to carry out after the completion of drilling to take out fixed link 19 when the reaming of middle part, push rod 17
It is moved upwards under the action of second spring 15 and third wing 8 is pushed to realize reaming.
It is equipped with screw thread on the outside of the connector 3, the screwed ring 10 screwed togather with it is installed on the outside of the screw thread, to prevent from drilling
When fixed link 19 thrown away under high speed rotation, prevent fixed link 19 from throwing away with the screwed ring 10 screwed togather on the outside of connector 3 by installing.
11 bottom of cavity is equipped with the second through-hole 20 communicated therewith, is equipped with drawstring 21, institute in second through-hole 20
It states 21 one end of drawstring to be fixedly connected with 18 bottom of fixed block, the other end is equipped with knot, and the knot setting is in 3 outside of connector, institute
Stating drawstring 21 is polyvinyl hawser, and light specific gravity, intensity are high, and impact resilience hits, wearability and good corrosion resistance, consolidates drawstring 21 before drilling
It is scheduled on connector 3, when needing to take out PDC drill bit after the completion of reaming, unlocks drawstring 21, it will be with the fixed company of drawstring 21 by knot
The fixed block 18 connect pulls out push rod 17, and fixed by fixed link 19, so that resetting the 3rd PDC tooth 9 takes out PDC drill bit.
Embodiment 2
The present embodiment difference from example 1 is that the first PDC tooth 5 diameter be greater than the 2nd PDC tooth 7 diameter,
It is drilled by PDC cutter tooth of different sizes, soft or hard different geology can be used, to also improve rate of penetration.
Working principle: by fixed link 19 that the fixed block 18 on push rod 17 is fixed before drilling, rotation screwed ring 10 will be consolidated
Fixed pole 19 seals, and prevents from throwing away, and starting driving device drills, and when needing to carry out reaming after the completion of drilling, unlocks drawstring
21, rotation screwed ring 10 takes out fixed link 19, and cylinder 2 rotates when starting driving device, and push rod 17 pushes third wing 8 sliding outward
It is dynamic, make the 3rd PDC tooth 9 far from cylinder 2, so that the internal diameter of drilling is expanded, to realize the expanded bore at processing middle part, machining position
It sets more accurate；When needing to take out PDC drill bit after the completion of reaming, drawstring 21 is unlocked, it will be with the fixed company of drawstring 21 by knot
The fixed block 18 connect pulls out push rod 17, and fixed by fixed link 19, so that resetting the 3rd PDC tooth 9 takes out PDC drill bit.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (7)
1. a kind of PDC drill bit, including bit feed end (1), cylinder (2) and connector (3), the bit feed end (1) pass through column
Body (2) is fixedly connected with connector (3), it is characterised in that: is equipped with cavity (11) in the cylinder (2), cavity (11) left and right
Two sides are equipped with the first through hole (12) communicated therewith, are equipped with the third being slidably connected with it inside the first through hole (12)
Wing (8) is equipped with the 3rd PDC tooth (9) and sliding block (16) on the third wing (8), and first through hole (12) bottom is set
Having sliding slot (13), in sliding slot (13), the sliding slot (13) is equipped with the first spring (14) for the sliding block (16) setting, and described the
One spring (14) setting is fixedly installed with second spring (15), described second on the outside of sliding block (16) at the top of the cavity (11)
Spring (15) bottom is fixedly connected with push rod (17).
2. PDC drill bit according to claim 1, it is characterised in that: be fixedly installed with the on the right side of the bit feed end (1)
One wing (4) is fixedly connected with the first PDC tooth (5) on first wing (4)；Be equipped on the left of first wing (4) with
(2) the second wing (6) that bit feed end (1) is fixedly connected is fixedly installed with the 2nd PDC tooth on second wing (6)
(7).
3. PDC drill bit according to claim 1, it is characterised in that: push rod (17) bottom is fixedly installed with fixed block
(18), the fixed link (19) being slidably connected with it, fixed link (19) penetrator (3) are installed in the fixed block (18)
Setting.
4. PDC drill bit according to claim 1 or 3, it is characterised in that: be equipped with screw thread, the spiral shell on the outside of the connector (3)
The screwed ring (10) screwed togather with it is installed on the outside of line.
5. PDC drill bit according to claim 1, it is characterised in that: cavity (11) bottom is equipped with the communicated therewith
Two through-holes (20), second through-hole (20) is interior to be equipped with drawstring (21), and described drawstring (21) one end and fixed block (18) bottom are solid
Fixed connection, the other end are equipped with knot, and the knot setting is on the outside of connector (3).
6. PDC drill bit according to claim 5, it is characterised in that: the drawstring (21) is polyvinyl hawser.
7. PDC drill bit according to claim 2, it is characterised in that: the diameter of the first PDC tooth (5) is greater than the 2nd PDC
The diameter of tooth (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810995748.8A CN109098666A (en) | 2018-08-29 | 2018-08-29 | A kind of PDC drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810995748.8A CN109098666A (en) | 2018-08-29 | 2018-08-29 | A kind of PDC drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109098666A true CN109098666A (en) | 2018-12-28 |
Family
ID=64864078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810995748.8A Pending CN109098666A (en) | 2018-08-29 | 2018-08-29 | A kind of PDC drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109098666A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114352206A (en) * | 2021-11-25 | 2022-04-15 | 傅丽兵 | Drill bit for expanding diameter |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU825834A1 (en) * | 1976-11-09 | 1981-04-30 | Шахта "Бруснянская" | Drilling tool |
| US5141063A (en) * | 1990-08-08 | 1992-08-25 | Quesenbury Jimmy B | Restriction enhancement drill |
| CN202140022U (en) * | 2011-07-11 | 2012-02-08 | 无锡金帆钻凿设备有限公司 | Anchor rod bottom-enlarging bit |
| CN103726791A (en) * | 2014-01-24 | 2014-04-16 | 河南理工大学 | Pipe-following drilling reaming device for gas extraction holes in soft broken coal bed |
| CN103967418A (en) * | 2014-05-05 | 2014-08-06 | 天地科技股份有限公司 | Reamer bit and anchoring method for anchor rod |
| CN204877268U (en) * | 2015-08-24 | 2015-12-16 | 河南宇建科技股份有限公司 | Brill develops integrative device |
| CN105370209A (en) * | 2015-11-26 | 2016-03-02 | 中煤科工集团西安研究院有限公司 | Drill pipe lifting and reaming drill and construction method thereof |
| CN106337656A (en) * | 2016-08-19 | 2017-01-18 | 李泓胜 | PCD drill bit capable of reaming hole forcibly and internally |
-
2018
- 2018-08-29 CN CN201810995748.8A patent/CN109098666A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU825834A1 (en) * | 1976-11-09 | 1981-04-30 | Шахта "Бруснянская" | Drilling tool |
| US5141063A (en) * | 1990-08-08 | 1992-08-25 | Quesenbury Jimmy B | Restriction enhancement drill |
| CN202140022U (en) * | 2011-07-11 | 2012-02-08 | 无锡金帆钻凿设备有限公司 | Anchor rod bottom-enlarging bit |
| CN103726791A (en) * | 2014-01-24 | 2014-04-16 | 河南理工大学 | Pipe-following drilling reaming device for gas extraction holes in soft broken coal bed |
| CN103967418A (en) * | 2014-05-05 | 2014-08-06 | 天地科技股份有限公司 | Reamer bit and anchoring method for anchor rod |
| CN204877268U (en) * | 2015-08-24 | 2015-12-16 | 河南宇建科技股份有限公司 | Brill develops integrative device |
| CN105370209A (en) * | 2015-11-26 | 2016-03-02 | 中煤科工集团西安研究院有限公司 | Drill pipe lifting and reaming drill and construction method thereof |
| CN106337656A (en) * | 2016-08-19 | 2017-01-18 | 李泓胜 | PCD drill bit capable of reaming hole forcibly and internally |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114352206A (en) * | 2021-11-25 | 2022-04-15 | 傅丽兵 | Drill bit for expanding diameter |
| CN114352206B (en) * | 2021-11-25 | 2024-01-12 | 湖北兴龙工具有限公司 | Drill bit for expanding |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20181228 |