CN110145237A - A kind of down-the-hold drill bit for bore expanded hole - Google Patents
A kind of down-the-hold drill bit for bore expanded hole Download PDFInfo
- Publication number
- CN110145237A CN110145237A CN201910552574.2A CN201910552574A CN110145237A CN 110145237 A CN110145237 A CN 110145237A CN 201910552574 A CN201910552574 A CN 201910552574A CN 110145237 A CN110145237 A CN 110145237A
- Authority
- CN
- China
- Prior art keywords
- activity
- block
- notch
- reaming
- drill bit
- 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
- 230000000694 effects Effects 0.000 claims abstract description 59
- 239000000956 alloy Substances 0.000 claims abstract description 22
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 22
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 238000005553 drilling Methods 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B10/43—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits characterised by the arrangement of teeth or other cutting elements
Abstract
The invention belongs to drill bit apparatus technical fields, in particular a kind of down-the-hold drill bit for bore expanded hole, including drill body, the drill body is equipped with notch, jack is offered on the side wall of the drill body, the inside of the jack is plugged with the second activity reaming block, one end of the second activity reaming block passes through notch and is fixedly connected with the inner wall of drill body, the first activity reaming block being rotatably connected on the surface of the second activity reaming block inside notch, the first alloy block is fixed at the top of the first activity reaming block, the second alloy block is fixed on the drill body.The design that the present invention passes through notch, when fixing upper second activity reaming block or the second activity reaming block inside it, this not only meets the requirement in drilling in this way, meet the requirement of reaming drilling simultaneously, after being integrated in this way, it only needs a set of equipment that bore expanded hole work can be completed, has saved the time, while having saved cost.
Description
Technical field
The present invention relates to drill bit apparatus technical field, specially a kind of down-the-hold drill bit for bore expanded hole.
Background technique
Existing drilling and Counterboring apparatus are typically all separated at present, place into reaming after taking out drill after drill mouth
Device carries out reaming.
Such construction is more troublesome at present, and cost is relatively high.
And the bore expanded hole combined drill for having price relatively high in the market, or exactly drilling and reaming blade are all solid
It sets, it is that reaming blade cannot collapse or exactly reaming blade is strutted or collapsed by hydraulic cylinder.
The shortcomings that such drill bit be it is at high cost, structure is complicated, and maintenance is difficult, and service life is short.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, it the present invention provides a kind of down-the-hold drill bit for bore expanded hole, solves existing
Structure is complicated for drill bit apparatus, equipment valuableness and the shorter problem of service life.
(2) technical solution
To achieve the above object, the invention provides the following technical scheme: a kind of down-the-hold drill bit for bore expanded hole, including
Drill body, the drill body are equipped with notch, offer jack, the inside of the jack on the side wall of the drill body
It is plugged with the second activity reaming block, one end of the second activity reaming block passes through the fixed company of inner wall of notch and drill body
It connects, the first activity reaming block being rotatably connected on the surface of the second activity reaming block inside notch, described first
It is fixed with the first alloy block at the top of activity reaming block, the second alloy block is fixed on the drill body.
As a preferred technical solution of the present invention, the size of the first activity reaming block and the shape size of notch
It is adapted, the shape of the first activity reaming block is step bevel structure.
As a preferred technical solution of the present invention, the inside of the first activity reaming block offers the first turn hole,
First turn hole covers on the second activity reaming block.
As a preferred technical solution of the present invention, first alloy block and the second alloy block are movable with first respectively
Reaming block and drill body are integrally formed or are directly welded and fixed.
As a preferred technical solution of the present invention, the second activity reaming block surface can also be turned by the second turn hole
The second activity reaming block of dynamic connection is in the inside of notch.
As a preferred technical solution of the present invention, the size of the second activity reaming block and the shape size of notch
It is adapted.
As a preferred technical solution of the present invention, the top structure of the second activity reaming block and the second activity are expanded
The top structure of hole block is identical or different.
As a preferred technical solution of the present invention, the quantity of the notch is three or more, inside the notch
The second activity reaming block or the second activity reaming block quantity with breach quantity change and change.
(3) beneficial effect
Compared with prior art, the present invention provides a kind of down-the-hold drill bits for bore expanded hole, have following beneficial to effect
Fruit:
1, the down-the-hold drill bit for being used for bore expanded hole fixes expansion inside it and collapses positioning by the design of notch
When column or the second activity reaming block, this not only meets the requirement in drilling in this way, while meeting the requirement of reaming drilling, this
After sample is integrated, only needs a set of equipment that bore expanded hole work can be completed, saved the time, while having saved cost.
2, down-the-hold drill bit for being used for bore expanded hole, by collapsing positioning column in expansion and consolidating with the top of drill body
Fixed first alloy block and the second alloy block, in this way when carrying out bore expanded hole, can effectively enhance expansion collapse positioning column and with
The structural strength of drill body, to prolong the service life.
3, the down-the-hold drill bit for being used for bore expanded hole, overall structure components are less, and structure is simple, relative material cost at
This is low, and structural strength is big, long service life.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention one；
Fig. 2 is schematic structural view of the invention two；
Fig. 3 is schematic structural view of the invention three.
In figure: 1, drill body；2, notch；3, positioning column is collapsed in expansion；4, jack；5, the first activity reaming block；6,
One turn hole；7, the first alloy block；8, the second alloy block；9, the second activity reaming block；10, the second turn hole.
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.
Embodiment
Please refer to Fig. 1-3, the present invention is the following technical schemes are provided: a kind of down-the-hold drill bit for bore expanded hole, including bores
Head ontology 1, drill body 1 are equipped with notch 2, offer jack 4 on the side wall of drill body 1, the inside of jack 4 is plugged with exhibition
It opens and collapses positioning column 3, one end that positioning column 3 is collapsed in expansion passes through notch 2 and is fixedly connected with the inner wall of drill body 1, and expansion is received
Hold together on the surface of positioning column 3 the first activity reaming block 5 being rotatably connected to inside notch 2, the top of the first activity reaming block 5
Portion is fixed with the first alloy block 7, and the second alloy block 8 is fixed on drill body 1.
In the present embodiment, drill body 1 is metal material, and the position size of notch 2 is required to straight according to drill body 1
The size of diameter is uniformly adapted to, and is surround and is opened up.
Specifically, the size of the first activity reaming block 5 is adapted with the shape size of notch 2, the first activity reaming block 5
Shape is step bevel structure.
In the present embodiment, the design shape of the first activity reaming block 5 is step bevel structure, and such shape and structure is convenient
Drill body 1 is unfolded, and the inner wall that 5 bottom of the first activity reaming block contradicts notch 2 needs bore expanded hole so that it is convenient to calculate
Pore size, while 2 inner wall of notch can more support and fix the first activity reaming block 5, increase structural strength.
Specifically, the inside of the first activity reaming block 5 offers the first turn hole 6, the first 6 sets of turn hole collapses positioning in expansion
On column 3.
In the present embodiment, the first activity reaming block 5 is socketed in expansion by the first turn hole 6 and collapses on positioning column 3, so i.e.
It may make, the rotation of the first activity reaming block 5, while the rotational angle past is without departing from original position.
Specifically, the first alloy block 7 and the second alloy block 8 respectively with the first activity reaming block 5 and the one of drill body 1 at
Type is directly welded and fixed.
In the present embodiment, the first alloy block 7 and the second alloy block 8 respectively with the first activity reaming block 5 and drill body 1 one
It is body formed, increase the first alloy block 7 and the second alloy block 8 on end face in this way.
Specifically, 3 surface of positioning column is collapsed in expansion can also be existed by the second turn hole 10 the second activity reaming block 9 of rotation connection
The inside of notch 2.
In the present embodiment, the form and shape of the second activity reaming block 9 and expansion gathering positioning column 3 are variant, still
Meet the structure feature met in 2 inner rotation of notch.
Specifically, the size of the second activity reaming block 9 is adapted with the shape size of notch 2.
In the present embodiment, the work fixation principle of the second activity reaming block 9 and the rotation of expansion gathering positioning column 3 are fixed former
It manages identical, is fixed after rotation using the structure feature of the second activity reaming block 9.
Specifically, with expansion to collapse the top structure of positioning column 3 identical or not for the top structure of the second activity reaming block 9
Together.
In the present embodiment, the top structure of the second activity reaming block 9 is identical as the expansion gathering top structure of positioning column 3 i.e.
First alloy block 7 is all installed or is integrally formed and is not shown in the figure, connects enough when carrying out bore expanded hole, increase structural strength in this way,
In order to prolong the service life.
Specifically, the quantity of notch 2 is three or more, positioning column 3 is collapsed in the expansion inside notch 2 or the second activity is expanded
The quantity of hole block 9 changes with 2 quantity of notch and is changed.
In the present embodiment, the number of 2 quantity of notch is depending on the diameter of drill body 1, and the quantity of notch 2 is not
Limited to, depending on actual field demand.
The working principle of the invention and process for using: installation connection is fixed in drill body 1 and external hydraulic device,
When carrying out drilling expansion, drill body 1 can both have been rotated downwards, while during rotation, passed through the expansion inside notch 2 and collapsed
The first activity reaming block 5 that positioning column 3 rotates carries out bore expanded hole, then after drilling, is promoted directly up, exhibition
It opens and collapses positioning column 3 after driving the first activity reaming block 5 to be shunk, work can be completed without reversion.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (8)
1. a kind of down-the-hold drill bit for bore expanded hole, including drill body (1), it is characterised in that: on the drill body (1)
It equipped with notch (2), is offered jack (4) on the side wall of the drill body (1), the inside of the jack (4) is plugged with expansion
It collapses positioning column (3), inner wall of the one end of expansion gathering positioning column (3) across notch (2) and drill body (1) is fixed to be connected
It connects, the first activity reaming block (5) internal positioned at notch (2) is rotatably connected on the surface of expansion gathering positioning column (3),
It is fixed with the first alloy block (7) at the top of the first activity reaming block (5), is fixed with the second conjunction on the drill body (1)
Gold bullion (8).
2. a kind of down-the-hold drill bit for bore expanded hole according to claim 1, it is characterised in that: first activity is expanded
The size of hole block (5) is adapted with the shape size of notch (2), and the shape of the first activity reaming block (5) is step inclined-plane
Structure.
3. a kind of down-the-hold drill bit for bore expanded hole according to claim 1, it is characterised in that: first activity is expanded
The inside of hole block (5) offers the first turn hole (6), and first turn hole (6) covers collapses on positioning column (3) in expansion.
4. a kind of down-the-hold drill bit for bore expanded hole according to claim 1, it is characterised in that: first alloy block
(7) it is integrally formed with the first activity reaming block (5) and drill body (1) or is directly welded and fixed respectively with the second alloy block (8).
5. a kind of down-the-hold drill bit for bore expanded hole according to claim 1, it is characterised in that: the expansion is collapsed fixed
Position column (3) surface can also be rotatablely connected the second activity reaming block (9) in the inside of notch (2) by the second turn hole (10).
6. a kind of down-the-hold drill bit for bore expanded hole according to claim 5, it is characterised in that: second activity is expanded
The size of hole block (9) is adapted with the shape size of notch (2).
7. a kind of down-the-hold drill bit for bore expanded hole according to claim 6, it is characterised in that: second activity is expanded
The top structure of hole block (9) and the top structure that positioning column (3) are collapsed in expansion are identical or different.
8. a kind of down-the-hold drill bit for bore expanded hole according to claim 1, it is characterised in that: the notch (2)
Quantity is three or more, and the quantity of positioning column (3) or the second activity reaming block (9) is collapsed in the internal expansion of the notch (2)
Change with notch (2) quantity and changes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910552574.2A CN110145237A (en) | 2019-06-25 | 2019-06-25 | A kind of down-the-hold drill bit for bore expanded hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910552574.2A CN110145237A (en) | 2019-06-25 | 2019-06-25 | A kind of down-the-hold drill bit for bore expanded hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110145237A true CN110145237A (en) | 2019-08-20 |
Family
ID=67596657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910552574.2A Pending CN110145237A (en) | 2019-06-25 | 2019-06-25 | A kind of down-the-hold drill bit for bore expanded hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110145237A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11200750A (en) * | 1998-01-07 | 1999-07-27 | Hokuriku Engineering Kk | Excavation bit for winding hole and execution method using it |
| US20010030066A1 (en) * | 1997-10-14 | 2001-10-18 | Clydesdale Graham Macdonald | Rock bit with improved nozzle placement |
| US20110180330A1 (en) * | 2010-01-26 | 2011-07-28 | Conn Timothy W | Drilling assembly with underreaming bit and method of use |
| CN301901968S (en) * | 2011-11-29 | 2012-05-02 | 长沙黑金刚实业有限公司 | Slider type reaming tool |
| CN202627961U (en) * | 2012-06-13 | 2012-12-26 | 黄明平 | Sliding-block-type concentric down-the-hole simultaneous casing drilling tool |
| KR20150110997A (en) * | 2014-03-24 | 2015-10-05 | (주)씨엔피텍 | Drilling bit |
| KR101643659B1 (en) * | 2016-04-07 | 2016-07-28 | (주)이엔피엔지니어링 | Slide Type Air Hammer |
| CN106320987A (en) * | 2016-08-19 | 2017-01-11 | 李泓胜 | Inner reaming PDC (polycrystalline diamond compact) drill bit |
| CN208380501U (en) * | 2018-05-22 | 2019-01-15 | 张潇洪 | It is a kind of to punch with pipe device |
| CN210289635U (en) * | 2019-06-25 | 2020-04-10 | 无锡贝佳尔科技有限公司 | Down-the-hole drill bit for drilling and reaming |
-
2019
- 2019-06-25 CN CN201910552574.2A patent/CN110145237A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010030066A1 (en) * | 1997-10-14 | 2001-10-18 | Clydesdale Graham Macdonald | Rock bit with improved nozzle placement |
| JPH11200750A (en) * | 1998-01-07 | 1999-07-27 | Hokuriku Engineering Kk | Excavation bit for winding hole and execution method using it |
| US20110180330A1 (en) * | 2010-01-26 | 2011-07-28 | Conn Timothy W | Drilling assembly with underreaming bit and method of use |
| CN301901968S (en) * | 2011-11-29 | 2012-05-02 | 长沙黑金刚实业有限公司 | Slider type reaming tool |
| CN202627961U (en) * | 2012-06-13 | 2012-12-26 | 黄明平 | Sliding-block-type concentric down-the-hole simultaneous casing drilling tool |
| KR20150110997A (en) * | 2014-03-24 | 2015-10-05 | (주)씨엔피텍 | Drilling bit |
| KR101643659B1 (en) * | 2016-04-07 | 2016-07-28 | (주)이엔피엔지니어링 | Slide Type Air Hammer |
| CN106320987A (en) * | 2016-08-19 | 2017-01-11 | 李泓胜 | Inner reaming PDC (polycrystalline diamond compact) drill bit |
| CN208380501U (en) * | 2018-05-22 | 2019-01-15 | 张潇洪 | It is a kind of to punch with pipe device |
| CN210289635U (en) * | 2019-06-25 | 2020-04-10 | 无锡贝佳尔科技有限公司 | Down-the-hole drill bit for drilling and reaming |
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