CN108035690A - A kind of swinging drilling orifice sealing device for air drilling - Google Patents
A kind of swinging drilling orifice sealing device for air drilling Download PDFInfo
- Publication number
- CN108035690A CN108035690A CN201810009788.0A CN201810009788A CN108035690A CN 108035690 A CN108035690 A CN 108035690A CN 201810009788 A CN201810009788 A CN 201810009788A CN 108035690 A CN108035690 A CN 108035690A
- Authority
- CN
- China
- Prior art keywords
- bearing
- drilling
- sealing
- spring
- housing
- 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.)
- Granted
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 94
- 238000007789 sealing Methods 0.000 title claims abstract description 63
- 210000004907 gland Anatomy 0.000 claims abstract description 13
- 238000012856 packing Methods 0.000 claims abstract description 9
- 238000003466 welding Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 239000003566 sealing material Substances 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract description 2
- 238000005422 blasting Methods 0.000 abstract description 2
- 239000011435 rock Substances 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 4
- 239000007921 spray Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 235000010755 mineral Nutrition 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 235000002639 sodium chloride Nutrition 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
-
- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/18—Drilling by liquid or gas jets, with or without entrained pellets
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
A kind of swinging drilling orifice sealing device for air drilling, available for air drilling, construct in mine blasting hole, the technical fields such as geological prospecting, including sealing half smooth block, take-up housing, fastening spring, spring pull rod, connect core pipe, fixing bolt, bearing gland, bearing block, aperture connecting tube, bearing, sealed packing, rubber gasket and spring stop, half smooth block is sealed under the action of fastening spring, hold rotating drilling rod tightly, the rotation band dynamic sealing semicircle sliding block of drilling rod, so as to drive take-up housing, connection core pipe and bearing rotate together, realize the revolution of sealing device；The swinging sealing of the present invention avoids the abrasion of sealing material, makes sealing effect more preferable；Clamping force is provided with fastening spring to be adjusted in real time according to drag size, reduces the resistance to drilling rod to greatest extent；The requirement of different size drilling rod can be met by replacing half smooth block of sealing of different size.
Description
Technical field
The present invention relates to a kind of drilling tools, are led available for technologies such as air drilling, the construction of mine blasting hole, geological prospectings
Domain.
Background technology
Air drilling is a kind of underbalance drilling not only as circulatory mediator, but also as fractured rock energy using compressed air
Technology.Air drilling technology has just been paid high attention to since birth be subject to domestic and international probing circle, is fitted with its drilling efficiency height, stratum
Should be able to power be strong, shaft bottom cleaning and cooling condition are good, effectively avoid the generation of the complex situations such as leakage, adapts to drought and water-scarce area applies
The features such as work, be widely popularized and applied to the fields such as hydrology and water well drilling, oil/gas drilling, geothermal drilling, mine exploration.In air
In drilling well, air carries the landwaste under drill bit crushes from bottom hole, removes or spray from lines of orifices, cause in the inner cyclic process of hole
Cutting carring and rock powder air spray around aperture, seriously polluted the environment of drilling machine yard, and health is caused to endanger
Evil, also produces equipment pollution, influences equipment life and working status.
During geological prospecting is carried out, storage location, reserves and the grade of to master underground mineral resources are, it is necessary to obtain
The rock salt sample of ore bed.And during conventional direct circulation air drilling or reverse circulation drilling is carried out, there is air from drilling
Returned on interior, the speed above returned is very high (speed is more than 15m/s), if aperture, without port seal, air cutting carring is from hole
Mouth sprays, and can not obtain drill bit completely and crush the rock sample to get off, it is impossible to the composition of true reflection stratum or mineral products, it is difficult to contentedly
Matter exploration requires.
Conventional sealing device is using fixed, and sealing device is not rotated with drilling rod, and rubber is filled between device and drilling rod
Or other sealing materials, since filler cannot be close to drilling rod, it is produced gap between drilling rod, in high-speed air flow
Blow and turn round under wear working condition, gap is also increasing, and causes seal failure quickly, and aperture produces substantial amounts of rock powder dust, sternly
Ghost image rings being normally carried out for drilling work.
The content of the invention
Technical side's problem to be solved by this invention is：In order to overcome the shortcomings of existing port seal, there is provided a kind of
For the swinging drilling orifice sealing device of air drilling, make orifice sealing effect more preferable, adapt to air drilling requirement.
The present invention adopts the following technical scheme that：A kind of swinging drilling orifice sealing device for air drilling, its
It is characterized in that：Including half smooth block of sealing, take-up housing, fastening spring, spring pull rod, connection core pipe, fixing bolt, bearing pressure
Lid, bearing block, aperture connecting tube, bearing, sealed packing, rubber gasket and spring stop, half smooth block quantity of the sealing
For two, two half smooth blocks of sealing are symmetricly set on drilling rod both sides, and each half smooth block medial surface that seals is inlaid with seal disc
Root, each both ends for sealing half smooth block are pasted with rubber gasket；The take-up housing is set on drilling rod, is welded on take-up housing
There is spring stop；The spring stop quantity is two, and two spring stops are distributed in drilling rod both sides and are arranged symmetrically；The folder
Tight spring is placed in inside spring stop and is set on spring pull rod, and fastening spring one end is resisted against on half smooth block of sealing, folder
The tight spring other end is resisted against on take-up housing；The spring pull rod is through take-up housing with sealing half smooth block screwed connection, spring
Pull rod is moved along drilling rod radial direction；Along drilling rod, axially connection core pipe between take-up housing and aperture connecting tube, connects core pipe
One end is welded with take-up housing, and the other end is welded with aperture connecting tube, and connection core pipe lower sidewall is contacted with the outer ring of bearing；It is described
Bearing is installed on bearing block, and bearing and bearing block upper surface are contour；The bearing gland is located above bearing and bearing block；Institute
State bearing block to be connected by fixing bolt with bearing gland, bearing block is welded with aperture connecting tube.
Further, gasket is provided between bearing gland and bearing block and bearing.
Further, support ring and rubber ring, support ring and rubber ring alternating are provided between the connection core pipe and drilling rod
Arrangement forms annular groove, and the annular groove between support ring and rubber ring forms labyrinth sealing.
Further, it is provided with circlip between take-up housing and connection core pipe.
By above-mentioned designing scheme, the present invention can bring following beneficial effect：Half smooth block is sealed in fastening spring
Under effect, rotating drilling rod, the rotation band dynamic sealing semicircle sliding block of drilling rod, so as to drive take-up housing, connection core pipe and axis are held tightly
Hold and rotate together, realize the revolution of sealing device；Swinging seals the abrasion for avoiding sealing material, makes sealing effect more
It is good；Clamping force is provided with fastening spring to be adjusted in real time according to drag size, reduces the resistance to drilling rod to greatest extent；Replace
Half smooth block of sealing of different size can meet the requirement of different size drilling rod.
Brief description of the drawings
Specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings.
Fig. 1 is a kind of swinging drilling orifice schematic diagram of sealing device for air drilling of the present invention.
Fig. 2 is the sectional view along A-A of Fig. 1, seals half smooth block open mode schematic diagram.
Each mark is as follows in figure：1- seals half smooth block, 2- take-up housings, 3- fastening springs, 4- springs pull rod, 5- connection cores
Pipe, 6- fixing bolts, 7- bearing glands, 8- gaskets, 9- bearing blocks, 10- apertures connecting tube, the outlet of 11- rock samples, 12- supports
Ring, 13- bearings, 14- rubber rings, 15- circlips, 16- sealed packings, 17- drilling rods, 18- rubber gaskets, 19- spring catch
Plate.
Embodiment
In order to illustrate more clearly of the present invention, the present invention is done further with reference to preferred embodiments and drawings
It is bright.It should be understood by those skilled in the art that.Specifically described content is illustrative and be not restrictive below, should not be with this
Limit the scope of the invention.
The present invention proposes a kind of swinging drilling orifice sealing device for air drilling, as shown in Figures 1 and 2,
Including sealing half smooth block 1, take-up housing 2, fastening spring 3, spring pull rod 4, connection core pipe 5, fixing bolt 6, bearing gland 7,
Bearing block 9, aperture connecting tube 10, bearing 13, sealed packing 16, rubber gasket 18 and spring stop 19, the sealing semicircle
1 quantity of sliding block is two, and two half smooth blocks 1 of sealing are symmetricly set on 17 both sides of drilling rod, each to seal half smooth block, 1 medial surface
Sealed packing 16 is inlaid with, under the action of fastening spring 3, the drilling rod 17 of sealed packing 16 and revolution is adjacent to, to drilling rod 17
Revolution produces minimum resistance, drilling rod 17 is smoothly moved up and down and is adjacent to drilling rod 17, ensures sealing effect, often
The both ends of half smooth block 1 of a sealing are pasted with rubber gasket 18, and under the action of fastening spring 3, rubber gasket 18 deforms
It is close together, seals the both ends contact position of half smooth block 1 of sealing.Using sealed packing 16 and rubber gasket 18, in bullet
Under spring force effect, make half smooth block 1 of sealing and 17 circumferential sealing of drilling rod, it is achieved thereby that the sealing to drilling orifice.The cunning
Block 2 is set on drilling rod 17, and spring stop 19 is welded with take-up housing 2；19 quantity of spring stop is two, two bullets
Spring baffle 19 is distributed in 17 both sides of drilling rod and is arranged symmetrically；The fastening spring 3 is placed in the inside of spring stop 19 and is set in bullet
On spring pull rod 4,3 one end of fastening spring is resisted against on half smooth block 1 of sealing, and 3 other end of fastening spring is resisted against on take-up housing 2；
The spring pull rod 4 is moved through take-up housing 2 and sealing half smooth block, 1 screwed connection, spring pull rod 4 along 17 radial direction of drilling rod
It is dynamic；Along the axial connection core pipe 5 of drilling rod 17 between take-up housing 2 and aperture connecting tube 10, connection 5 one end of core pipe and take-up housing 2
Welding, the other end are welded with aperture connecting tube 10, and connection 5 lower sidewall of core pipe is contacted with the outer ring of bearing 13；The bearing 13
On bearing block 9, bearing 13 and 9 upper surface of bearing block are contour；The bearing gland 7 is located on bearing 13 and bearing block 9
Side；The bearing block 9 is connected with bearing gland 7 by fixing bolt 6, and bearing block 9 is welded with aperture connecting tube 10.
Gasket 8 is provided between bearing gland 7 and bearing block 9 and bearing 13.
Support ring 12 and rubber ring 14, support ring 12 and rubber ring 14 are provided between the connection core pipe 5 and drilling rod 17
Also formed and sealed together, support ring 12 and rubber ring 14 are alternately arranged to form annular groove, the ring between support ring 12 and rubber ring 14
Groove forms labyrinth sealing, in addition to self seal, further increases the reliability of sealing.Take-up housing 2 and connection core pipe 5 it
Between be provided with circlip 15.When needing to propose drilling tool from port seal, circlip 15 is taken out, rubber ring 14
Itd is proposed with support ring 12 together with drill bit.In lower discharge hole during drilling tool, first drill bit is put into hole, then rubber ring 14 and support
Ring 12 is put into connection core pipe 5, spacing with circlip 15.
Referring to Fig. 1, air enters bottom hole drill bit, then the ring-type from drilling tool and hole wall by drilling rod 17 in drilling process
Gap is back at the drilling rod 17 at port seal and connection core pipe 5, due to the sealing of port seal, makes carrying rock
The air of bits can only export 11 from rock sample and exclude, and into collection device, avoid the loss of landwaste, rock sample outlet 11 is opened in
On the side wall of aperture connecting tube 10；
Friction of the turning power of swinging drilling orifice sealing device between two half smooth blocks 1 of sealing and drilling rod 17
Power, specific half smooth block 1 that seals hold rotating drilling rod 17, the rotation band dynamic sealing of drilling rod 17 tightly under the action of fastening spring 3
Frictional force, take-up housing 2, connection core pipe 5 are passed to so as to dynamic bearing 13 by sealing half smooth block 1 by half smooth block 1 successively
Revolution, the sealing of sealing half smooth block 1 and take-up housing 2 are realized by clearance fit.
Referring to Fig. 2, the spring stop 19 of 17 both sides of drilling rod is symmetrically welded on take-up housing 2, and fastening spring 3 first is loaded bullet
In spring baffle 19, then spring pull rod 4 is connected with half smooth block 1 of sealing by the way of screwed connection, and applied to fastening spring 3
Pressurize tight prestressing force.When needing to carry out normal drilling work, under the resilient force that fastening spring 3 stretches, semicircle is sealed
Sliding block 1 inwardly moves, and holds drilling rod 17 tightly, realizes sealing function；When needing replacing drilling tool, pull out spring pull rod 4 and compress
Fastening spring 3, seals half smooth block 1 and moves radially outwards at this time, and is disengaged with drilling rod 17, makes between two sealings, half smooth block 1
Distance increase, so as to which drilling tool in hole is proposed.If 17 specification of drilling rod need to be changed, the specification of half smooth block 1 of sealing is only needed to change,
It can realize sealing function, set of device is used for plurality of specifications drilling rod, facilitate construction site to use, improve apparatus of the present invention
Service efficiency.
Claims (4)
- A kind of 1. swinging drilling orifice sealing device for air drilling, it is characterised in that：Including sealing half smooth block (1), take-up housing (2), fastening spring (3), spring pull rod (4), connection core pipe (5), fixing bolt (6), bearing gland (7), axis Bearing (9), aperture connecting tube (10), bearing (13), sealed packing (16), rubber gasket (18) and spring stop (19), institute It is two to state sealing half smooth block (1) quantity, and two half smooth blocks of sealing (1) are symmetricly set on drilling rod (17) both sides, Mei Gemi Seal half smooth block (1) medial surface and be inlaid with sealed packing (16), each both ends for sealing half smooth block (1) are pasted with rubber seal Piece (18)；The take-up housing (2) is set on drilling rod (17), and spring stop (19) is welded with take-up housing (2)；The spring catch Plate (19) quantity is two, and two spring stops (19) are distributed in drilling rod (17) both sides and are arranged symmetrically；The fastening spring (3) It is placed in spring stop (19) inside and is set on spring pull rod (4), fastening spring (3) one end is resisted against half smooth block of sealing (1) on, fastening spring (3) other end is resisted against on take-up housing (2)；The spring pull rod (4) is through take-up housing (2) with sealing half Smooth block (1) screwed connection, spring pull rod (4) are moved along drilling rod (17) radial direction；Core pipe (5) is axially connected along drilling rod (17) Between take-up housing (2) and aperture connecting tube (10), connection core pipe (5) one end is welded with take-up housing (2), the other end and aperture Connecting tube (10) is welded, and connection core pipe (5) lower sidewall is contacted with the outer ring of bearing (13)；The bearing (13) is installed on bearing On seat (9), bearing (13) and bearing block (9) upper surface are contour；The bearing gland (7) is located at bearing (13) and bearing block (9) Top；The bearing block (9) is connected with bearing gland (7) by fixing bolt (6), bearing block (9) and aperture connecting tube (10) Welding.
- A kind of 2. swinging drilling orifice sealing device for air drilling according to claim 1, it is characterised in that： Gasket (8) is provided between bearing gland (7) and bearing block (9) and bearing (13).
- A kind of 3. swinging drilling orifice sealing device for air drilling according to claim 1, it is characterised in that： Support ring (12) and rubber ring (14), support ring (12) and rubber ring are provided between the connection core pipe (5) and drilling rod (17) (14) it is alternately arranged to form annular groove, the annular groove between support ring (12) and rubber ring (14) forms labyrinth sealing.
- A kind of 4. swinging drilling orifice sealing device for air drilling according to claim 1, it is characterised in that： Circlip (15) is provided between take-up housing (2) and connection core pipe (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810009788.0A CN108035690B (en) | 2018-01-05 | 2018-01-05 | Rotary drilling orifice sealing device for air drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810009788.0A CN108035690B (en) | 2018-01-05 | 2018-01-05 | Rotary drilling orifice sealing device for air drilling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108035690A true CN108035690A (en) | 2018-05-15 |
| CN108035690B CN108035690B (en) | 2023-10-27 |
Family
ID=62098925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810009788.0A Active CN108035690B (en) | 2018-01-05 | 2018-01-05 | Rotary drilling orifice sealing device for air drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108035690B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110230481A (en) * | 2019-06-28 | 2019-09-13 | 中国地质科学院勘探技术研究所 | A kind of geological drilling port seal |
| CN110566151A (en) * | 2019-09-03 | 2019-12-13 | 辽宁省有色地质一〇一队有限责任公司 | Drill pipe floating sealing device |
| CN111947529A (en) * | 2020-07-24 | 2020-11-17 | 湖南德立安全环保科技有限公司 | Blasting tube fixing device for engineering blasting |
| CN113047792A (en) * | 2021-04-07 | 2021-06-29 | 吉林大学 | A sealed dust collector in drill way for air bores |
| CN114183089A (en) * | 2021-12-14 | 2022-03-15 | 河南能源化工集团研究总院有限公司 | Novel blowout preventer for underground drilling of coal mine |
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|---|---|---|---|---|
| US4955436A (en) * | 1989-12-18 | 1990-09-11 | Johnston Vaughn R | Seal apparatus |
| CN201031651Y (en) * | 2007-05-23 | 2008-03-05 | 黄树 | Grief stem well head rotary sealing device |
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| CN201962681U (en) * | 2011-02-11 | 2011-09-07 | 重庆探矿机械厂 | Rotary orifice sealer |
| CN207673307U (en) * | 2018-01-05 | 2018-07-31 | 吉林大学 | A kind of swinging drilling orifice sealing device for air drilling |
-
2018
- 2018-01-05 CN CN201810009788.0A patent/CN108035690B/en active Active
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| CN101796259A (en) * | 2007-08-27 | 2010-08-04 | 特丽萨·J·威廉斯 | Spring load seal assembly and well drilling equipment comprising same |
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| Title |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110230481A (en) * | 2019-06-28 | 2019-09-13 | 中国地质科学院勘探技术研究所 | A kind of geological drilling port seal |
| CN110566151A (en) * | 2019-09-03 | 2019-12-13 | 辽宁省有色地质一〇一队有限责任公司 | Drill pipe floating sealing device |
| CN110566151B (en) * | 2019-09-03 | 2024-05-03 | 辽宁省有色地质一〇一队有限责任公司 | Floating sealing device for drill rod of orifice |
| CN111947529A (en) * | 2020-07-24 | 2020-11-17 | 湖南德立安全环保科技有限公司 | Blasting tube fixing device for engineering blasting |
| CN113047792A (en) * | 2021-04-07 | 2021-06-29 | 吉林大学 | A sealed dust collector in drill way for air bores |
| CN114183089A (en) * | 2021-12-14 | 2022-03-15 | 河南能源化工集团研究总院有限公司 | Novel blowout preventer for underground drilling of coal mine |
| CN114183089B (en) * | 2021-12-14 | 2024-03-12 | 河南能源化工集团研究总院有限公司 | Novel colliery is beaten in pit and is bored blowout preventer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108035690B (en) | 2023-10-27 |
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