CN207160992U - A kind of pdc drill bits of multiple rows of toothing - Google Patents
A kind of pdc drill bits of multiple rows of toothing Download PDFInfo
- Publication number
- CN207160992U CN207160992U CN201721226208.0U CN201721226208U CN207160992U CN 207160992 U CN207160992 U CN 207160992U CN 201721226208 U CN201721226208 U CN 201721226208U CN 207160992 U CN207160992 U CN 207160992U
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- Prior art keywords
- gear
- wing
- sillar
- chip removal
- broken
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Abstract
It the utility model is related to pdc bit techniques field, disclose a kind of pdc drill bits of multiple rows of toothing, including drill body, drill body includes cutting portion and connecting portion, cutting portion is evenly equipped with a plurality of wing, and channel of chip removal is formed between adjacent blades, and every wing side wall is evenly equipped with multigroup auxiliary cutting device, every group of auxiliary cutting device includes linkage gear and broken gear, and linkage gear and broken gear can rotate；The utility model is when sillar is passing through channel of chip removal, the sliding friction between sillar and wing side wall is set to conjugate rolling friction, so as to reduce frictional force, sillar is set to be not easy to be stuck in channel of chip removal, when sillar is stuck in a channel of chip removal, sillar and a broken Gear Contact, rotated with another gear in group under the impact of drilling fluid, so as to drive with another the broken pinion rotation contacted in group with sillar, so that the sillar being stuck in channel of chip removal comes off, make channel of chip removal chip removal smooth, improve operating efficiency.
Description
Technical field
It the utility model is related to pdc bit techniques field, and in particular to a kind of pdc drill bits of multiple rows of toothing.
Background technology
At present, pdc drill bits, natural diamond bit, impregnated bit etc. are widely used in oil-gas mining and geological prospecting, and
Achieve prominent using effect.With continuing to increase for oil-gas mining difficulty, the exploitation of shale gas, extended reach well etc. is all more
Depend on directed-drilling technique, it is therefore desirable to have the directional drilling bit of suitable directional drilling.
Pdc drill bits are the abbreviations of polycrystalline diamond compact bit, and it is in the industries such as geological drilling and drilling engineering
One of most important rock crushing tool.The bizet section of pdc drill bits generally can be divided into：Interior conical point, inner conical surface, nose, shoulder,
Outer shoulder, gauge.Cutting tooth on pdc drill bits is arranged radially on the wing of drill bit along drill bit at an appropriate angle, cloth
Put the cutting tooth on wing and broken rock is realized by way of scraping and cutting or shear, channel of chip removal is formed between adjacent blades, crush
The drilling fluid impact that rock afterwards is sprayed in nozzle, and drill bit rear portion is discharged to along channel of chip removal, finally discharge drilling well.
But existing drill bit, in rock break-off process, channel of chip removal is often blocked by sillar, although drilling liquid pressure is very big,
But after sillar hardness is excessive, and some channel of chip removal is blocked wherein, drilling fluid can flow out from other channel of chip removal, cause
The pressure of blocked channel of chip removal is not very big, and sillar can be stuck in channel of chip removal always, influence the normal discharge of landwaste, so as to shadow
Ring the operating efficiency of drill bit.
Utility model content
Based on above technical problem, the utility model provides a kind of pdc drill bits of multiple rows of toothing, existing so as to solve
There is drill bit channel of chip removal to be blocked by sillar, be not easy to turn on, so as to influence the technical problem of bit operation efficiency.
The technical solution adopted in the utility model is as follows：
A kind of pdc drill bits of multiple rows of toothing, including drill body, cutting portion and bottom of the drill body including top
Connecting portion, drill body top center are provided with nozzle；The outer surface of the cutting portion bizet is evenly equipped with a plurality of wing, phase
Channel of chip removal is formed between adjacent wing, every wing has been evenly distributed in the upper surface multiple cutting tooths；
Every wing side wall is evenly equipped with multigroup auxiliary cutting device, and every group of auxiliary cutting device includes being arranged on wing
Internal linkage gear and the broken gear being partly embedded in respectively in two side walls of wing, linkage gear are broken by two in same group
Broken gear connection, linkage gear and broken gear can rotate；Multigroup auxiliary cutting device is uniform along the trend of wing
Set.
In summary, by adopting the above-described technical solution, the beneficial effects of the utility model are：
1st, the broken gear that the utility model is set protrudes wing side wall and can rotated, and leads in sillar by chip removal
During road, the sliding friction between sillar and wing side wall is conjugated rolling friction, so as to reduce frictional force, sillar is not easy card
In channel of chip removal, so that drill bit, in rock break-off process, chip removal is smooth, operating efficiency is improved；
2nd, due to forming channel of chip removal between adjacent wing, wing is separately positioned on two broken gears in group
Two side walls, so being contacted respectively with two channel of chip removal with two broken gears in group, and lead to the broken gear organized
Linkage gear linkage is crossed, so when sillar is stuck in a channel of chip removal, sillar and one in auxiliary cutting device are broken
Gear Contact, rotate under the impact of drilling fluid with another broken gear in group, contacted so as to drive with group with sillar
Another broken pinion rotation so that the sillar being stuck in channel of chip removal comes off, channel of chip removal chip removal is improved work along city
Make efficiency；
3rd, the utility model nozzle is arranged on drill body top center, can not only bored in rock break-off process
Auxiliary rock cools in the presence of well liquid, and landwaste can preferably be impacted into channel of chip removal.
Preferably, the axis of the broken gear and linkage gear is parallel with wing side wall, crushes gear and linkage tooth
The axis of wheel is vertical with wing upper surface, due to the finite thickness of wing, so such a set-up mode can need it is less
Linkage gear can connects two broken gears in same group, simple in construction, cost-effective.
Preferably, the axis of the broken gear and linkage gear is parallel with wing side wall, crushes gear and linkage tooth
The axis of wheel is parallel with wing upper surface, and broken gear can be contacted and rotated with rock stratum in drill bit rotation process, not only
Broken rock can be facilitated, and be stuck in channel of chip removal sillar when, it is bigger to crush the strength that gear provides, and makes channel of chip removal card
The sillar entered faster drops.
Preferably, the linkage gear quantity is 1, is not only simple in structure, cost-effective, and in the knife of equivalent specifications
Under the wing, linkage gear is arranged to 1, and relative to be arranged to multiple situations with linkage gear, the size of linkage gear is bigger, so as to
Torque is become big, make the sillar of blocking be easier to drop.
Preferably, the wing quantity is 5, constant in wing specification, and in the case of ensureing bit cutting intensity,
Increase channel of chip removal, make sillar be not easy to block.
Brief description of the drawings
Fig. 1 is the utility model general illustration；
Fig. 2 is the utility model Fig. 1 along A-A diagrammatic cross-sections；Linkage gear is 1；
Fig. 3 is the utility model Fig. 1 along A-A diagrammatic cross-sections；Linkage gear is multiple；
Fig. 4 is enlarged drawing at B in the utility model Fig. 3；
Marked in figure：1- drill bodies；2- cutting portions；3- connecting portions；4- nozzles；5- wings；6- channel of chip removal；7- is cut
Tooth；8- auxiliary cutting devices；9- linkage gears；10- crushes gear.
Embodiment
All features disclosed in this specification, can be with any in addition to mutually exclusive feature and/or step
Mode combines.
The utility model is elaborated below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of pdc drill bits of multiple rows of toothing, including drill body 1, drill body 1 include cutting for top
The connecting portion 3 of portion 2 and bottom is cut, the top center of drill body 1 is provided with nozzle 4；The outer surface of the bizet of cutting portion 2
A plurality of wing 5 is evenly equipped with, forms channel of chip removal 6 between adjacent blades 5, every wing 5 has been evenly distributed in the upper surface multiple cutting tooths 7；
As shown in Fig. 2 the side wall of every wing 5 is evenly equipped with multigroup auxiliary cutting device 8, every group of auxiliary cutting device 8
Including the linkage gear 9 being arranged on inside wing 5 and the broken gear 10 being partly embedded in respectively in 5 two side walls of wing, linkage
Gear 9 connects two broken gears 10 in same group, and linkage gear 9 and broken gear 10 can rotate；It is described multigroup auxiliary
Trend of the topping machanism 8 along wing 5 is helped to be uniformly arranged.
The axis of the broken gear 10 and linkage gear 9 is parallel with the side wall of wing 5, crushes gear 10 and linkage gear
9 axis is vertical with the upper surface of wing 5；The quantity of linkage gear 9 is 1；The quantity of wing 5 is 5.
Operation principle of the present utility model is：Connecting portion 3 is connected with drill rod thread, during drilling, cutting tooth 7 is entered to rock stratum
Row broken rock, drilling fluid spray from nozzle 4, broken sillar is discharged along channel of chip removal 6, crush gear 10 and protrude wing 5
It side wall and can rotate, in sillar when by channel of chip removal 6, conjugate the sliding friction between sillar and the side wall of wing 5
Rolling friction, so as to reduce frictional force, sillar is set to be not easy to be stuck in channel of chip removal 6,
When sillar is stuck in wherein some channel of chip removal 6, sillar in the wing 5 of the blocked both sides of channel of chip removal 6 with setting
A broken gear 10 contact, now rotated with another broken gear 10 in group under the impact of drilling fluid, so as to band
Dynamic linkage gear 9 rotates, and linkage gear 9 drives the broken gear 10 contacted with sillar to rotate, so that being stuck in channel of chip removal 6
Sillar drop.
Below, the utility model is described in further details in conjunction with specific embodiments.
Specific embodiment
Embodiment 1
A kind of pdc drill bits of multiple rows of toothing, including drill body 1, drill body 1 include the cutting portion 2 on top with
The connecting portion 3 in portion, the top center of drill body 1 are provided with nozzle 4；The outer surface of the bizet of cutting portion 2 is evenly equipped with more
Bar wing 5, forms channel of chip removal 6 between adjacent blades 5, and every wing 5 has been evenly distributed in the upper surface multiple cutting tooths 7；
The side wall of every wing 5 is evenly equipped with multigroup auxiliary cutting device 8, and every group of auxiliary cutting device 8 includes being arranged on
Linkage gear 9 inside wing 5 and the broken gear 10 being partly embedded in respectively in 5 two side walls of wing, linkage gear 9 is by same group
Two interior broken gears 10 connect, and linkage gear 9 and broken gear 10 can rotate；Multigroup auxiliary cutting device 8
It is uniformly arranged along the trend of wing 5.
Embodiment 2
The present embodiment does further optimization based on embodiment 1, and the axis of the broken gear 10 and linkage gear 9 is and knife
The side wall of the wing 5 is parallel, and the axis of broken gear 10 and linkage gear 9 is vertical with the upper surface of wing 5, because the thickness of wing 5 has
Limit, so such a set-up mode can need the less can of linkage gear 9 to connect two broken gears 10 in same group,
It is simple in construction, it is cost-effective.
Embodiment 3
The present embodiment does further optimization based on embodiment 1, as shown in Figure 3, Figure 4, the broken gear 10 and linkage tooth
The axis of wheel 9 is parallel with the side wall of wing 5, and the axis for crushing gear 10 and linkage gear 9 is parallel with the upper surface of wing 5；
The operation principle of the present embodiment：Connecting portion 3 is connected with drill rod thread, during drilling, cutting tooth 7 is broken to rock stratum
Rock, the broken gear 10 for being arranged on the side wall of wing 5 are contacted and rotated with rock stratum, can help broken rock, and drilling fluid sprays from nozzle 4
Go out, broken sillar is discharged along channel of chip removal 6, when sillar is stuck in wherein some channel of chip removal 6, sillar and the row of being blocked
The broken gear 10 set in the wing 5 of bits passage 6 both sides is contacted, and broken gear 10 is contacted and rotated with rock stratum, can make rock
Block drops；
When sillar is blocked in the position that crushing gear 10 in the bottom of wing 5 can not contact with rock stratum, sillar and blocked chip removal
The broken gear 10 set in the wing 5 of the both sides of passage 6 contacts, now with another broken gear 10 in group in drilling well
Rotated under the impact of liquid, so as to drive linkage gear 9 to rotate, linkage gear 9 drives the broken gear 10 contacted with sillar to rotate,
So that the sillar being stuck in channel of chip removal 6 drops.
Embodiment 4
The present embodiment does further optimization based on embodiment 2, and the quantity of linkage gear 9 is 1, is not only simple in structure,
It is cost-effective, and under the wing 5 of equivalent specifications, linkage gear 9 is arranged to 1, it is relative to be arranged to multiple with linkage gear 9
Situation, the size of linkage gear 9 is bigger, so that torque becomes big, makes the sillar of blocking be easier to drop.
Embodiment 5
The present embodiment does further optimization based on embodiment 1, and the quantity of wing 5 is 5, constant in wing specification, and
And in the case of ensureing bit cutting intensity, increase channel of chip removal 6, make sillar be not easy to block.
It is embodiment of the present utility model as described above.The utility model is not limited to above-mentioned embodiment, anyone
The structure change made under enlightenment of the present utility model should be learnt, it is every that there is same or like skill with the utility model
Art scheme, each falls within the scope of protection of the utility model.
Claims (5)
- A kind of 1. pdc drill bits of multiple rows of toothing, it is characterised in that：Including drill body (1), drill body (1) includes top Cutting portion (2) and bottom connecting portion (3), drill body (1) top center is provided with nozzle (4)；The cutting portion (2) outer surface of bizet is evenly equipped with a plurality of wing (5), forms channel of chip removal (6) between adjacent blades (5), on every wing (5) Surface is evenly equipped with multiple cutting tooths (7)；Every wing (5) side wall is evenly equipped with multigroup auxiliary cutting device (8), and every group of auxiliary cutting device (8) includes setting In the internal linkage gear (9) of wing (5) and the broken gear (10) being partly embedded in respectively in (5) two side walls of wing, linkage Gear (9) connects two broken gears (10) in same group, and linkage gear (9) and broken gear (10) can rotate；Institute Trend of the multigroup auxiliary cutting device (8) along wing (5) is stated to be uniformly arranged.
- 2. the pdc drill bits of multiple rows of toothing according to claim 1, it is characterised in that：The broken gear (10) and connection The axis of moving gear (9) is parallel with wing (5) side wall, crush the axis of gear (10) and linkage gear (9) with wing (5) Upper surface is vertical.
- 3. the pdc drill bits of multiple rows of toothing according to claim 1, it is characterised in that：The broken gear (10) and connection The axis of moving gear (9) is parallel with wing (5) side wall, crush the axis of gear (10) and linkage gear (9) with wing (5) Upper surface is parallel.
- 4. the pdc drill bits of multiple rows of toothing according to claim 2, it is characterised in that：Linkage gear (9) quantity is 1.
- 5. the pdc drill bits of multiple rows of toothing according to claim 1, it is characterised in that：Wing (5) quantity is 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721226208.0U CN207160992U (en) | 2017-09-23 | 2017-09-23 | A kind of pdc drill bits of multiple rows of toothing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721226208.0U CN207160992U (en) | 2017-09-23 | 2017-09-23 | A kind of pdc drill bits of multiple rows of toothing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207160992U true CN207160992U (en) | 2018-03-30 |
Family
ID=61723692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721226208.0U Expired - Fee Related CN207160992U (en) | 2017-09-23 | 2017-09-23 | A kind of pdc drill bits of multiple rows of toothing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207160992U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109519128A (en) * | 2019-01-18 | 2019-03-26 | 沧州格锐特钻头有限公司 | A kind of gear wheel-PDC cutting structure composite drill bit |
| CN112627738A (en) * | 2020-12-03 | 2021-04-09 | 武穴市明锐机械股份有限公司 | Drill bit with mud bag preventing function |
-
2017
- 2017-09-23 CN CN201721226208.0U patent/CN207160992U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109519128A (en) * | 2019-01-18 | 2019-03-26 | 沧州格锐特钻头有限公司 | A kind of gear wheel-PDC cutting structure composite drill bit |
| CN112627738A (en) * | 2020-12-03 | 2021-04-09 | 武穴市明锐机械股份有限公司 | Drill bit with mud bag preventing function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180330 Termination date: 20190923 |