CN208633782U - Axial convex ribs cut deslagging drilling rod in the release of hole - Google Patents
Axial convex ribs cut deslagging drilling rod in the release of hole Download PDFInfo
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- CN208633782U CN208633782U CN201820755476.XU CN201820755476U CN208633782U CN 208633782 U CN208633782 U CN 208633782U CN 201820755476 U CN201820755476 U CN 201820755476U CN 208633782 U CN208633782 U CN 208633782U
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- rod
- convex ribs
- hole
- release
- beam pipe
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Abstract
The utility model discloses axial convex ribs to cut deslagging drilling rod in the release of hole, including the hollow body of rod, the beam pipe being co-axially located inside the body of rod, connecting-rod body and beam pipe supporting element, it is slagging channel between body of rod inner wall and beam pipe outer wall, it is air inlet, intake tunnel inside beam pipe, the body of rod external cylindrical surface is equipped with the axial convex ribs parallel with its axial direction, and the side of axial convex ribs is provided with multiple pressure relief vents on body of rod external cylindrical surface.Occurring collapse hole in drilling, cinder can enter slagging channel by pressure relief vent, cinder is discharged to the active force of drilling rod, meanwhile, axial convex ribs, which have, takes off hole ability, so that cinder is in the saturating state of pine and enters slagging channel through pressure relief vent, until collapse hole area is unimpeded.
Description
Technical field
The utility model belongs to coal mine gas extraction drill hole technical field, more particularly to a kind of suitable for high stress coal seam drilling
Into axial convex ribs cut deslagging drilling rod in the release of hole.
Background technique
As Coal Exploitation is deeply increasing, Circumstances of Coal Mining deteriorates, and high stress seam mining problem encountered is increasingly
It is taken seriously.During high stress drilling in coal, drilling deflection is big, deformation velocity is fast, bit freezing, breaking of rod phenomenon easily occurs, leads
Cause pore-forming effect is poor, drilling efficiency is low, drilling depth is shallow.
Currently, there are two types of the domestic drilling rods generallyd use in terms of the high stress drilling in coal: one is according to mechanical and wind
Spiral (muscle, blade) drilling rod of the double dynamical deslagging principle of power；One is bored thoroughly with the trigone of wind power slag-discharging principle according to vortex pine
Bar, auger stem can not effectively cut the coal body that hole wall shrinks or protrudes since radius of turn is small, and Completion of Drilling Hole effect is poor.Three
Using vortex principle, deslagging ability in the case where wind power slag-discharging enhances rib drilling rod, but using deslagging effect when hydraulic slag discharging mode
It is unsatisfactory.Moreover, the above two classes drilling rod belongs to slagging channel out, between coal wall and drilling rod, high stress coal seam hole wall shrinks bright
In the case where aobvious or collapse hole, slagging channel is easily blocked.Therefore, it is necessary to design a kind of pore-forming effect is good, slagging channel not by
The novel drill rod of drilling effect of contraction.
Published Chinese patent invention " for the porous turbulent release drilling tool of cherry coal rock drilling binary channels ", patent publication No.
Are as follows: CN203584298U has good effect in terms of guard aperture and protection slagging channel using the porous turbulent release drilling rod of binary channels
Fruit, but drilling rod does not have the ability of cutting hole wall protrusion coal body, bit freezing easily occurs, embraces and bores phenomenon, and release hole number is excessive, drilling rod
Intensity is low, breaking of rod phenomenon easily occurs, and pressure relief vent setting is unreasonable, and there are release blind areas when drilling rod rotates.
Utility model content
In view of the above-mentioned problems, the utility model has cutting power according to the rotation of axial convex ribs and pressure relief vent slag input release is anti-
The principle of blocking provides the axial convex ribs that a kind of pore-forming effect is good, drilling efficiency is high, drilling depth is deep and cuts deslagging brill in the release of hole
Bar.
In order to achieve the above objectives, using following technical scheme.
It is a kind of axial direction convex ribs cut deslagging drilling rod in the release of hole, including the hollow body of rod, the note being co-axially located inside the body of rod
The supporting element of flow tube, connecting-rod body and beam pipe is slagging channel between body of rod inner wall and beam pipe outer wall, is inside beam pipe
Air inlet, intake tunnel, the body of rod external cylindrical surface are equipped with its axial parallel axial convex ribs, the edge on body of rod external cylindrical surface
The side of axial convex ribs is provided with multiple pressure relief vents.
For the service life and chip effect for improving drilling rod, wear-resistant processing can be carried out at axial convex ribs.
The external cylindrical surface of the body of rod one end is equipped with external screw thread, and the inner cylinder face of the other end is equipped with internal screw thread,
The external screw thread can cooperate with internal screw thread.
Complete be provided with of the body of rod, beam pipe, supporting element covers more, by by internal screw thread and outside between the adjacent body of rod
It is threadedly engaged carry out screwed connection, is connected between adjacent beam pipe by plug-in unit.
The cross-sectional shape of the axial direction convex ribs is arc-shaped, rectangle, trapezoidal.
The shape of the pressure relief vent is round hole, strip-shaped hole.
The axial direction convex ribs are at least provided with two.
The pressure relief vent edge axial convex ribs side is single, multiple rows of or list is double is arranged alternately.
The supporting element includes fixed ring and supporting leg, and the Fixing shrink ring is on the outside of beam pipe and is firmly connected with it, institute
It states supporting leg one end to be fixedly connected with fixed ring, the other end extends radially outwardly to the body of rod along fixed ring and is fixedly connected with the body of rod.
When high stress drilling in coal, drilling will appear uneven necking down, and drilling profile has hard coal block protrusion, causes to creep into
Resistance increases, slagging channel reduced cross-sectional, bit freezing easily occurs and embrace to bore phenomenon.Using the above structure, deslagging fluid by air inlet,
Intake tunnel enters foot of hole, carries the slagging channel discharge that cinder is formed by rod piece inner wall and beam pipe outer wall and drills,
Slagging channel is located inside drilling rod, is protected by drilling-rod external wall, is not susceptible to clogging.When drilling rod high speed rotation, on the outside of drilling rod
Axial convex ribs there is the ability of cutting hole wall protrusion coal body, guarantee pore-forming effect, reduce drilling resistance, while convex ribs can raise
The cinder of drilling lower part, makes cinder enter slagging channel through pressure relief vent under loose flow regime.If there is collapse hole, coal in drilling
Slag can enter slagging channel by pressure relief vent, discharge cinder to the active force of drilling rod, meanwhile, axial convex ribs, which have, takes off hole ability,
So that cinder is in the saturating state of pine and enter slagging channel through pressure relief vent, until collapse hole area is unimpeded.
The utility model has the beneficial effects that: 1. there is axial convex ribs cutting hole wall protrusion coal body to reduce drilling resistance
Effect, solving the more turbulent release drilling rods of binary channels and not having cutting hole wall protrusion coal body leads to rod boring resistance great Yi bit freezing
The problem of；2. axial convex ribs have the ability for raising drilling lower part cinder, cinder is made to be in the state that pine floats thoroughly in the borehole,
Be conducive to hole drilling deslagging；3. pressure relief vent can reduce pressure relief vent to the shadow of drilling rod intensity in single equidistant or multi-row staggered arrangement
It rings；4. when the multi-row staggered arrangement of pressure relief vent, in drilling rod rotation, release blind area is not present in drilling rod.It is tested through field test: the present invention
Axial convex ribs cut the ability for having outstanding cutting hole wall protrusion cinder of deslagging drilling rod in the release of hole, rotational resistance significantly under
The intensity of drop, the more turbulent release drilling rods of the binary channels that compares improves 40% or more, while having anti-clogging built in slagging channel, unloading
Press the advantage of hole slag input release preventing sticking.
Detailed description of the invention
Fig. 1 is the main view of embodiment 1；
Fig. 2 is the sectional view of Fig. 1；
Fig. 3 is the left view of Fig. 1；
Fig. 4 is the main view of embodiment 2；
Fig. 5 is the sectional view of Fig. 4.
Specific embodiment
The embodiments of the present invention is illustrated by particular specific embodiment below, those skilled in the art can be by this
Content disclosed by specification understands other advantages and effect of the utility model easily.
Please refer to Fig. 1.This specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to cooperate specification
Revealed content is not intended to limit the utility model enforceable limit so that those skilled in the art understands and reads
Fixed condition, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size, not
It influences still fall in the revealed skill of the utility model under the effect of the utility model can be generated and the purpose that can reach
In the range of art content can cover.Meanwhile in this specification it is cited as "upper", "lower", "left", "right", " centre " and
The term of " one " etc. is merely convenient to being illustrated for narration, rather than to limit the enforceable range of the utility model, it is opposite to close
System is altered or modified, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the utility model.
As shown in Figure 1, Figure 2, Figure 3 shows, embodiment 1 cuts deslagging drilling rod in the release of hole for a kind of axial convex ribs, including hollow
The body of rod 1, the beam pipe 2 being co-axially located inside the body of rod 1, connecting-rod body 1 and beam pipe 2 supporting element 3,1 inner wall of the body of rod and note
It is slagging channel 4 between 2 outer wall of flow tube, is air inlet, intake tunnel 5 inside beam pipe 2,1 external cylindrical surface of the body of rod is equipped with
With its axial parallel axial convex ribs 6, the side of axial convex ribs 6 is provided with multiple pressure relief vents 7 on 1 external cylindrical surface of the body of rod.
For the service life and chip effect for improving drilling rod, wear-resistant processing can be carried out at axial convex ribs 6.
The external cylindrical surface of 1 one end of the body of rod is equipped with external screw thread 8, and the inner cylinder face of the other end is equipped with internal screw thread
9, the external screw thread 8 can cooperate with internal screw thread 9.
Complete be provided with of the body of rod 1, beam pipe 2, supporting element 3 covers more, by passing through internal screw thread between the adjacent body of rod 1
9 and the cooperation of external screw thread 8 carry out screwed connection, connected by plug-in unit 10 between adjacent beam pipe 2.
The cross-sectional shape of the axial direction convex ribs 6 is arc-shaped, rectangle, trapezoidal.
The shape of the pressure relief vent 7 is round hole, strip-shaped hole.
The axial direction convex ribs 6 are at least provided with two.
The pressure relief vent is along the axial single setting in 6 side of convex ribs.
As shown in Figure 4, Figure 5, embodiment 2 the difference from embodiment 1 is that, pressure relief vent is equipped with along the side of axial convex ribs 6
Two rows, while the variation of the number according to axial convex ribs 6, list is double to be arranged alternately.
The supporting element 3 includes fixed ring 31 and supporting leg 32, and 31 sets of the fixed ring is in 2 outside of beam pipe and is secured to
Connection, described 32 one end of supporting leg is fixedly connected with fixed ring 31, the other end along fixed ring 31 extend radially outwardly to the body of rod 1 and with
The body of rod 1 is fixedly connected.
When high stress drilling in coal, drilling will appear uneven necking down, and drilling profile has hard coal block protrusion, causes to creep into
Resistance increases, 4 reduced cross-sectional of slagging channel, bit freezing easily occurs and embrace to bore phenomenon.Using the above structure, deslagging fluid by into
Wind, intake tunnel 5 enter foot of hole, carry cinder and are discharged by the slagging channel 4 that rod piece inner wall and 2 outer wall of beam pipe are formed
Drilling, slagging channel 4 are located inside drilling rod, are protected by 1 outer wall of the body of rod, are not susceptible to clogging.When drilling rod high speed rotation, bore
Axial convex ribs 6 on the outside of bar have the ability of cutting hole wall protrusion coal body, guarantee pore-forming effect, reduce drilling resistance, while axis
The cinder that drilling lower part can be raised to convex ribs 6 makes cinder enter slagging channel 4 through pressure relief vent 7 under loose flow regime.If boring
Occurring collapse hole in hole, cinder can enter slagging channel 4 by pressure relief vent 7, discharge cinder to the active force of drilling rod, meanwhile, it is axial
Convex ribs 6, which have, takes off hole ability, so that cinder is in the saturating state of pine and enters slagging channel 4 through pressure relief vent 7, until collapse hole area is unimpeded.
The above embodiments are only illustrative of the principle and efficacy of the utility model, and not for limitation, this is practical new
Type.Any person skilled in the art can all carry out above-described embodiment under the spirit and scope without prejudice to the utility model
Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the revealed essence of the utility model
All equivalent modifications or change completed under mind and technical idea, should be covered by the claim of the utility model.
Claims (8)
1. axial convex ribs cut deslagging drilling rod in the release of hole, it is characterised in that: including the hollow body of rod, be co-axially located inside the body of rod
Beam pipe, connecting-rod body and beam pipe supporting element, be slagging channel between body of rod inner wall and beam pipe outer wall, in beam pipe
Portion is air inlet, intake tunnel, and the body of rod external cylindrical surface is equipped with the axial convex ribs parallel with its axial direction, in body of rod external cylindrical surface
On the side of axial convex ribs is provided with multiple pressure relief vents.
2. axial convex ribs cut deslagging drilling rod in the release of hole according to claim 1, it is characterised in that: the body of rod one end
External cylindrical surface is equipped with external screw thread, and the inner cylinder face of the other end is equipped with internal screw thread, and the external screw thread can be mutual with internal screw thread
Cooperation.
3. axial convex ribs cut deslagging drilling rod in the release of hole according to claim 2, it is characterised in that: the body of rod, beam pipe,
Complete be provided with of supporting element covers more, by carrying out screwed connection, phase by internal screw thread and external screw thread cooperation between the adjacent body of rod
It is connected between adjacent beam pipe by plug-in unit.
4. axial convex ribs cut deslagging drilling rod in the release of hole according to claim 1, it is characterised in that: the axial direction convex ribs are at least
Equipped with two.
5. axial convex ribs cut deslagging drilling rod in the release of hole according to claim 4, it is characterised in that: the pressure relief vent is along axial
Convex ribs side is single, multiple rows of or list is double is arranged alternately.
6. axial direction convex ribs according to claim 4 or 5 cut deslagging drilling rod in the release of hole, it is characterised in that: the axial direction convex ribs
Cross-sectional shape be arc-shaped, rectangle, it is trapezoidal.
7. axial direction convex ribs according to claim 4 or 5 cut deslagging drilling rod in the release of hole, it is characterised in that: the pressure relief vent
Shape is round hole, strip-shaped hole.
8. axial convex ribs cut deslagging drilling rod in the release of hole according to claim 1, it is characterised in that: the supporting element includes solid
Determine ring and supporting leg, the Fixing shrink ring is on the outside of beam pipe and is firmly connected with it, described supporting leg one end and the fixed company of fixed ring
It connects, the other end extends radially outwardly to the body of rod along fixed ring and is fixedly connected with the body of rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820755476.XU CN208633782U (en) | 2018-05-21 | 2018-05-21 | Axial convex ribs cut deslagging drilling rod in the release of hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820755476.XU CN208633782U (en) | 2018-05-21 | 2018-05-21 | Axial convex ribs cut deslagging drilling rod in the release of hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208633782U true CN208633782U (en) | 2019-03-22 |
Family
ID=65731804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820755476.XU Withdrawn - After Issue CN208633782U (en) | 2018-05-21 | 2018-05-21 | Axial convex ribs cut deslagging drilling rod in the release of hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208633782U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108798541A (en) * | 2018-05-21 | 2018-11-13 | 河南理工大学 | Axial convex ribs cut deslagging drilling rod in the release of hole |
-
2018
- 2018-05-21 CN CN201820755476.XU patent/CN208633782U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108798541A (en) * | 2018-05-21 | 2018-11-13 | 河南理工大学 | Axial convex ribs cut deslagging drilling rod in the release of hole |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190322 Effective date of abandoning: 20200918 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190322 Effective date of abandoning: 20200918 |