CN205778563U - A kind of single-cone rotary drill bit of insert glomerocryst composite teeth - Google Patents
A kind of single-cone rotary drill bit of insert glomerocryst composite teeth Download PDFInfo
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- CN205778563U CN205778563U CN201620518738.1U CN201620518738U CN205778563U CN 205778563 U CN205778563 U CN 205778563U CN 201620518738 U CN201620518738 U CN 201620518738U CN 205778563 U CN205778563 U CN 205778563U
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- drill bit
- insert
- teeth
- rotary drill
- gear wheel
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Abstract
The single-cone rotary drill bit that the utility model discloses a kind of insert glomerocryst composite teeth includes bit matrix (3) and gear wheel (1), the inside of bit matrix (3) is provided with oil storage bag (2), water injection hole (6) and two the oblique water holes (7) communicated with water injection hole (6), the outside of bit matrix (3) is provided with the pressure transmission hole communicated with oil storage bag (2), the end of bit matrix (3) is extended with Step Shaft (18) in the diagonal, gear wheel (1) be provided with the centre bore (15) communicated with water injection hole (6), the outside of gear wheel (1) is installed with cutting tooth.It is integrated with rifler that this technical scheme realizes PDC drill bit, is greatly improved bit performance, reduces drill bit cost.
Description
Technical field
This utility model relates to field of oil drilling, especially relates to single tooth of a kind of insert glomerocryst composite teeth
Wheel drill bit.
Background technology
Drills for stone are still with tricone bit as main tool at present, but single-cone rotary drill bit has many features
Being better than tricone bit: helicoid hydraulic motor is adopted in (1) domestic and international high rotating speed drilling well more and falls in whirlpool drilling tool, drill bit turns
Speed is 300 600r/min, belongs to ultrahigh rotating speed, and the rotating speed of tricone bit gear wheel is drill speed
1.5 times, its gear wheel rotating speed is up to 450 900r/min, and the rotating speed of single-cone rotary drill bit gear wheel is drill bit
0.75 times of rotating speed, the rotating speed of its gear wheel is about 225 450r/min, and the rotating speed of gear wheel is about three gear wheels
The half of bit cone rotating speed, therefore replacing tricone bit with single-wheel drill bit can improve drill bit with first mate's degree
Working index and reduction drilling cost；(2) the spherical gear wheel of single-cone rotary drill bit is provided that the bearing of maximum is empty
Between, three conical cutters of its loading ability of bearing area ratio provide bearing space sum much bigger, and loaded area can
Expand 5-8 times, be conducive to improving bearing life to greatest extent；(3) the spherical gear wheel of single-cone rotary drill bit
Be provided that the cloth tooth space of maximum makes spherical shaft bottom obtain efficiently comprehensively broken, improve bit performance and
Reduce drilling cost；(4) single-cone rotary drill bit tooth crushes spherical bottom rock in scraping mode, than three teeth
Wheel bit teeth rock fracture in dynamic indentation efficiency is high；(5) spherical gear wheel intensity high energy bears bigger the pressure of the drill and rotating speed；(6)
Lost cone accident occurs few, also will not lost cone after bearing seal inefficacy heavy wear；(7) it is easier to
Realize rifler integrated with PDC drill bit, improve bit operation mark to greatest extent and reduce drilling well
Cost.Therefore the continuous innovation for single-cone rotary drill bit has profound significance.
Summary of the invention
The purpose of this utility model is to provide the single-cone rotary drill bit of a kind of insert glomerocryst composite teeth, it is achieved that PDC
Drill bit is integrated with rifler, substantially increases bit performance, reduces drill bit cost.
For reaching above-mentioned purpose, this utility model is achieved by the following technical solutions.
The single-cone rotary drill bit of a kind of insert glomerocryst composite teeth, including bit matrix and gear wheel, it is characterised in that
The inside of described bit matrix is provided with oil storage bag, water injection hole and two the oblique water holes communicated with water injection hole,
The outside of bit matrix is provided with the pressure transmission hole communicated with oil storage bag, and the end of bit matrix is extended with in the diagonal
Step Shaft, described gear wheel is provided with the centre bore communicated with water injection hole, is provided with nozzle, tooth in centre bore
The outside of wheel is installed with cutting tooth, and described cutting tooth comprises hard-metal insert and closes tooth；
Being provided with step-like installing blind in described gear wheel, the macropore of step-like installing blind sets at step
There is inwall arcuate groove, described Step Shaft be provided with the outer wall arcuate groove corresponding with described inwall arcuate groove,
Between outer wall arcuate groove and inwall arcuate groove, ball is installed；
The outside of described Step Shaft is provided with oil storage tank, and the inside of Step Shaft is provided with and described oil storage bag and storage
The shafting oil hole that oil groove communicates, the end of Step Shaft is provided with pillow block rank, the macropore of described step-like installing blind
Being provided with cone groove near opening part, Step Shaft is provided with at described pillow block rank and between described cone groove
Wheel becket, is provided with wheel sealing ring between wheel becket and cone groove.
Further, described gear wheel being provided with six rows and cuts tooth, often row's cutting tooth is from gear wheel top to root
Part cloth, the cutting tooth of every two adjacent teeth row equidistantly misplaces on rotational trajectory.
Further, in described often row cutting tooth, three cutting teeth at close top are to close tooth.
Further, described bit matrix is provided with four groups of gauge teeths.
Further, four groups of described gauge teeths, often group gauge teeth is respectively two, and one is closed for hard
Gold gauge teeth, another is for closing gauge teeth.
Further, the described outside diameter seal bread of becket of taking turns is containing inclined-plane and plane, at the bottom of described cone groove
Bread is containing the inclined-plane corresponding with the radial sealing surfaces of wheel becket and plane.
Further, described sealing ring of taking turns is hydrogenated nitrile-butadiene rubber manufacture, and wheel becket is high-speed tool steel
Make.
Further, described nozzle is interior six side's hard alloy nozzles.
Further, described ball is steel ball.
The technical solution of the utility model has the advantage that (1) insert hard-metal insert on gear wheel
With conjunction tooth, it is achieved that PDC drill bit is integrated with rifler, substantially increases the working index of drill bit,
Reduce drilling cost；(2) Step Shaft uses O-shaped rubber ring and metal with the floating bearing of axle sleeve composition
Ring seal combination and oil storage bag equalizer bearing inside and outside differential pressure, substantially increase bearing life；(3) use
Centre bore and diclinic water hole combined cleaning well landwaste improve its upward velocity, and the favourable bit operation that improves refers to
Mark and reduction drilling cost；(4) this equidistant dislocation on rotational trajectory on gear wheel of the present utility model
Six rows cut tooth cloth toothing, and penetration rate is more preferable.
Accompanying drawing explanation
With specific embodiment, this utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the front view of the single-cone rotary drill bit of a kind of insert glomerocryst composite teeth of the present utility model；
Fig. 2 is Fig. 1 top view.
In figure: 1, gear wheel；2, oil storage bag；3, bit matrix；4, hard alloy gauge teeth；5,
Close gauge teeth；6, water injection hole；7, oblique water hole；8, floating ring；9, wheel sealing ring；10, wheel metal
Ring；11, axle sleeve；12, ball；13, thrust ring；14, nozzle；15, centre bore；16, close
Tooth；17, hard-metal insert；18, Step Shaft；19, oil storage tank.
Detailed description of the invention
With reference to Fig. 1, the front view of the single-cone rotary drill bit of a kind of insert glomerocryst composite teeth of the present utility model.
Being installed with six rows on gear wheel 1 and cut tooth, often row's cutting tooth is distributed from gear wheel top to root, and every two
The cutting tooth of adjacent tooth row equidistantly misplaces on rotational trajectory, and these cutting teeth comprise hard-metal insert 17 He
Closing tooth 16, closing tooth 16 is the hard-metal insert 17 that a kind of cutting face is provided with polycrystalline diamond layer, often
In row's cutting tooth, three of close top are cut teeth is to close tooth 16, and remaining cutting between cog is had a rest and arranged conjunction tooth
16 and hard-metal insert 17.It is integrated with rifler that this mixing cloth toothing achieves PDC drill bit,
Rock breaking efficiency is more preferable, substantially increases the working index of drill bit, reduces drilling cost
Gear wheel 1 is sleeved on Step Shaft 18, for preventing gear wheel 1 from Step Shaft 18 during drilling
On come off, gear wheel 1 is provided with step-like installing blind, the macropore of step-like installing blind is near step
Place is provided with inwall arcuate groove, and Step Shaft 18 is provided with the outer wall arcuate groove corresponding with inwall arcuate groove, and one
Aspect limits gear wheel 1 by ball 14 between outer wall arcuate groove and inwall arcuate groove and comes off, the opposing party
Face is provided with thrust ring 13 between the step of Step Shaft 18 top end face and step-like installing blind and carries out spacing.
In order to the landwaste preferably cleaned on gear wheel 1 and carrying returns on the landwaste of shaft bottom, at bit matrix 3
Inside is provided with water injection hole 6 and two the oblique water holes 7 communicated with water injection hole 6, is provided with and notes in gear wheel 1
The centre bore 15 that water hole 6 communicates, is provided with nozzle 14 in centre bore 15.After water injection hole 6 injects mud,
Sprayed by oblique water hole 7 and centre bore 15 and be respectively washed shaft bottom landwaste and gear wheel surface, and carry shaft bottom rock
Return on bits, thus improve bit performance and reduce drilling cost.
For realizing the sealing of bearing and the lubrication that are made up of Step Shaft 18 with axle sleeve 11, at bit matrix 3
Inside be provided with oil storage bag 2, the outside of Step Shaft 18 is provided with oil storage tank 19, the inside of Step Shaft 18
Being provided with the shafting oil hole communicated with oil storage bag 2 and oil storage tank 19, the end of Step Shaft 18 is provided with pillow block rank,
The macropore of step-like installing blind is provided with cone groove near opening part, and Step Shaft 18 is at described pillow block rank
And wheel becket 10 is installed between described cone groove, is provided with wheel between wheel becket 2 and cone groove and seals
Circle 9；The outside diameter seal bread of wheel becket 10 is containing inclined-plane and plane, and cone groove bottom surface comprises and wheel metal
Inclined-plane that the radial sealing surfaces of ring 10 is corresponding and plane.Specifically wheel sealing ring 9 is by radial and axial pressure
Contracting pusher driving wheel becket 10 so that it is end face is adjacent to floating ring 8 upper surface, and makes its lower surface be adjacent to
Axle is with table top, and forming two groups can mutual rotary seal end face, it is achieved ultrahigh speed rotating condition lower whorl becket
The bi-directional combination of the radial direction static seal of the axial movable sealing of 10 end faces and wheel sealing ring 9 seals, and takes turns sealing ring
9 use hydrogenated nitrile-butadiene rubber manufacture, wheel becket 10 to be made up of high-speed tool steel, and refined rear grinding and polishing makes
Sealing surface becomes minute surface HRC60 65, and axle is with table top build-up wear-resistant alloy, and heat treatment polishes table top after grinding.
This structure can be with better seal and the pressure of balance bearing internal external.
Bit matrix 3 is provided with four groups of gauge teeths circumferentially, and often group gauge teeth is respectively two, one
For hard alloy gauge teeth 4, another is for closing gauge teeth 5, and closing gauge teeth 5 is a kind of cutting face
Being provided with the hard alloy gauge teeth 4 of polycrystalline diamond layer, this structure has the most easy to wear, and gauge effect is more
The advantage such as good.
Obviously, those skilled in the art can carry out various change and deformation to this utility model and not take off
From spirit and scope of the present utility model.So, if of the present utility model these change and deformation belongs to
Within the scope of this utility model claim and equivalent technologies thereof, then this utility model also comprises these changes
With including modification.
Claims (9)
1. a single-cone rotary drill bit for insert glomerocryst composite teeth, including bit matrix (3) and gear wheel (1),
It is characterized in that, the inside of described bit matrix (3) be provided with oil storage bag (2), water injection hole (6) and
Two the oblique water holes (7) communicated with water injection hole (6), the outside of bit matrix (3) is provided with and oil storage bag
(2) pressure transmission hole communicated, the end of bit matrix (3) is extended with Step Shaft (18) in the diagonal, described
Gear wheel (1) is provided with the centre bore (15) communicated with water injection hole (6), and centre bore is provided with in (15)
Nozzle (14), the outside of gear wheel (1) is installed with cutting tooth, and described cutting tooth comprises hard-metal insert (17)
With conjunction tooth (16)；
Being provided with step-like installing blind in described gear wheel (1), the macropore of step-like installing blind is near step
Place is provided with inwall arcuate groove, described Step Shaft (18) is provided with corresponding with described inwall arcuate groove outside
Wall arcuate groove, is provided with ball (12) between outer wall arcuate groove and inwall arcuate groove；
The outside of described Step Shaft (18) is provided with oil storage tank (19), and the inside of Step Shaft (18) is provided with
The shafting oil hole communicated with described oil storage bag (2) and oil storage tank (19), the end of Step Shaft (18) is provided with
Pillow block rank, the macropore of described step-like installing blind is provided with cone groove, Step Shaft (18) near opening part
Wheel becket (10), wheel becket (10) are installed at described pillow block rank and between described cone groove
And it is provided with wheel sealing ring (9) between cone groove.
The single-cone rotary drill bit of insert glomerocryst composite teeth the most according to claim 1, it is characterised in that
Being provided with six rows on described gear wheel (1) and cut tooth, often row's cutting tooth is distributed, often from gear wheel top to root
The cutting tooth of two adjacent teeth row equidistantly misplaces on rotational trajectory.
The single-cone rotary drill bit of insert glomerocryst composite teeth the most according to claim 2, it is characterised in that
In described often row cutting tooth, three cutting teeth near top are for closing tooth (16).
The single-cone rotary drill bit of insert glomerocryst composite teeth the most according to claim 1, it is characterised in that
Described bit matrix (3) is provided with four groups of gauge teeths.
The single-cone rotary drill bit of insert glomerocryst composite teeth the most according to claim 4, it is characterised in that
Four groups of described gauge teeths, often group gauge teeth is respectively two, and one is hard alloy gauge teeth (5),
Another is for closing gauge teeth (4).
The single-cone rotary drill bit of insert glomerocryst composite teeth the most according to claim 1, it is characterised in that
The described outside diameter seal bread taking turns becket (10) containing inclined-plane and plane, described cone groove bottom surface comprise with
The inclined-plane corresponding to radial sealing surfaces of wheel becket (10) and plane.
The single-cone rotary drill bit of insert glomerocryst composite teeth the most according to claim 6, it is characterised in that
Described sealing ring (9) of taking turns is hydrogenated nitrile-butadiene rubber manufacture, and wheel becket (10) is that high-speed tool steel is made.
The single-cone rotary drill bit of insert glomerocryst composite teeth the most according to claim 1, it is characterised in that
Described nozzle (14) is interior six side's hard alloy nozzles.
The single-cone rotary drill bit of insert glomerocryst composite teeth the most according to claim 1, it is characterised in that
Described ball (12) is steel ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620518738.1U CN205778563U (en) | 2016-05-31 | 2016-05-31 | A kind of single-cone rotary drill bit of insert glomerocryst composite teeth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620518738.1U CN205778563U (en) | 2016-05-31 | 2016-05-31 | A kind of single-cone rotary drill bit of insert glomerocryst composite teeth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205778563U true CN205778563U (en) | 2016-12-07 |
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ID=58138198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620518738.1U Active CN205778563U (en) | 2016-05-31 | 2016-05-31 | A kind of single-cone rotary drill bit of insert glomerocryst composite teeth |
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| CN (1) | CN205778563U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909178A (en) * | 2016-05-31 | 2016-08-31 | 陕西金刚石油机械有限公司 | Mono-cone bit with embedded polycrystalline composite teeth |
-
2016
- 2016-05-31 CN CN201620518738.1U patent/CN205778563U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909178A (en) * | 2016-05-31 | 2016-08-31 | 陕西金刚石油机械有限公司 | Mono-cone bit with embedded polycrystalline composite teeth |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |