CN108868659A - Split type coal mine circle stile - Google Patents
Split type coal mine circle stile Download PDFInfo
- Publication number
- CN108868659A CN108868659A CN201810748859.9A CN201810748859A CN108868659A CN 108868659 A CN108868659 A CN 108868659A CN 201810748859 A CN201810748859 A CN 201810748859A CN 108868659 A CN108868659 A CN 108868659A
- Authority
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- China
- Prior art keywords
- slips
- centralizer
- keyway
- sliding slot
- coal mine
- 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.)
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Links
- 239000003245 coal Substances 0.000 title claims abstract description 28
- 238000005553 drilling Methods 0.000 abstract description 25
- 238000000034 method Methods 0.000 abstract description 15
- 239000010437 gem Substances 0.000 abstract description 12
- 229910001751 gemstone Inorganic materials 0.000 abstract description 12
- 230000008569 process Effects 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000010959 steel Substances 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (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 split type coal mine circle stile disclosed by the invention includes centralizer main body and centralizer slips group；Axially disposed the second keyway of the first keyway of twice and twice having for installing centralizer slips group in centralizer main body.The centralizer slips group includes that two structures are identical and the slips of mutual obvolvent, the length of slips is equal to the half of the first keyway length, the outer diameter of slips matches with bore diameter, the internal diameter of slips is consistent with the diameter of round bur bar, the inner wall of slips is axially disposed the first convex key, first convex key is mounted in the first keyway, and one end of the first convex key is abutted with wherein one end of the first keyway.Centralizer main body of the invention connects on rear side of clamper with round bur bar, centralizer slips group is installed into obvolvent in centralizer main body after centralizer main body passes through clamper, playing makes jewel hole increasing hole angle, hold angle or subtracts oblique effect in drilling process, it is easy to install and remove, can be improved utilization rate of the centralizer in the probing of practical coal mine.
Description
Technical field
The present invention relates to underground coal mine drilling field more particularly to a kind of split type coal mine circle stiles.
Background technique
Down hole drill is indispensable engineering in the daily production process of coal mine.On the one hand it is the daily production geology of coal mine
The important means of detection, such as regularity of coal seam detection, little structure detection, hydrogeology detection；On the other hand it is also coal mine
The measure guarantee of safety problem, such as unrestrained water drilling inspecting hole, gas extraction hole are solved in daily production.
Position of opening is designed according to the purpose of probing by technical staff before probing and borehole bottom location, the two determine probing
Design path --- the i.e. design axis of jewel hole.In work progress, with the extension of run of steel, in the influence of drilling rod self weight
Under and the soft or hard variation in stratum, the influence of bit pressure, drilling speed, the practical axis of jewel hole often deviate design axis, the two has phase difference
It is very big, but the practical axis of jewel hole is ignorant.In this way explain, using borehole data when still design press axis, lead
Effect that is not in place and not having unrestrained water, gas drainage under suction that the data for causing geotechnical boring to disclose is inaccurate, measure drills, to make
At a large amount of economic losses, bigger security risk is brought to daily production.
Centralizer is connected in drilling process between drilling rod（Also known as stabilizer）This problem can be efficiently solved.
Centralizer is in drilling process for increase jewel hole gradient or reduction jewel hole gradient（It is commonly used in directional drilling）With
And stablize a kind of measure equipment that jewel hole gradient uses, underground coal mine is generally used to stablize jewel hole gradient, serve anti-oblique.
Existing underground coal mine probing is integral type with centralizer, and outer diameter is straight close to the cutting of bore diameter, that is, drill bit
Diameter, greater than the diameter of round bur bar.
Underground coal mine probing institute using the power head and clamper of drilling machine allow by size be slightly larger than drill pipe diameter, and
Less than centralizer outer diameter.Therefore, existing centralizer be cannot in such a way that normal drilling rod connects directly from power head rear end or
It is connected among clamper and power head, but is connected in clamper front end.It results in needing to connect in drilling process in this way
When continuous centralizer, it is necessary to disconnect drilling rod before clamper, but drilling rod can not be fixed before clamper, that is to say, that pressing from both sides
It is very difficult that drilling rod is disconnected before holder.This resulted in existing centralizer practical coal mine probing in be rarely employed show
Shape.
Summary of the invention
The present invention provides a kind of split type coal mine round bur bar righting to solve shortcoming in the prior art
Device, centralizer main body of the invention connect on rear side of clamper with round bur bar, by righting after centralizer main body passes through clamper
Device slips group, which installs obvolvent, to be made jewel hole increasing hole angle, hold angle or subtracts oblique effect in playing in centralizer main body in drilling process, simultaneously
It can be improved service life by replacing centralizer slips group, improve utilization rate of the centralizer in the probing of practical coal mine.
The present invention adopted the technical scheme that solve the above-mentioned problems, a kind of split type coal mine round bur bar provided
Centralizer is split type comprising centralizer main body and centralizer slips group；
The centralizer main body be with the consistent hollow cylinder of round bur shank diameter, the both ends of centralizer main body are respectively arranged with pin thread
Connector and female connector, axially disposed the first keyway of twice and two having for installing centralizer slips group in centralizer main body
The second keyway of road, the first keyway of twice is mutually symmetrical with, and the bottom surface of the first keyway is cambered surface, and the second keyway of twice is mutually symmetrical with, the
Two keyways are divided into installing and dismounting section and limit section, and limit section is arc keyway and the transverse shape and the first keyway for limiting section
Transverse shape is consistent, the bottom surface the installing and dismounting Duan Weiyi opening plane concordant with limit section lowest point；
The centralizer slips group includes that two structures are identical and the slips of mutual obvolvent, and it is long that the length of slips is equal to the first keyway
The half of degree, outer diameter and the bore diameter of slips match, and the internal diameter of slips is consistent with the diameter of round bur bar, slips it is interior
Wall is axially disposed the first convex key, and the first convex key is mounted in the first keyway, one end of the first convex key and the first keyway its
Middle one end abuts.
Preferably, an open sides of slips are axially disposed the first U-shaped sliding slot, and the opening of the first U-shaped sliding slot deviates from
The central axis of slips, another open sides of slips are axially disposed the second U-shaped sliding slot, the opening direction of the second U-shaped sliding slot
The central axis of slips, the second U-shaped sliding slot phase of the U-shaped sliding slot of the first of one of slips and another slips of mutual obvolvent
Complete second convex key is formed after mutual grafting, the first U-shaped sliding slot and the second U-shaped sliding slot grafting, the second convex key is mounted on the second key
In slot.
Preferably, the surface of slips is axially disposed a righting convex block, and the surface of righting convex block is cambered surface, and the half of the cambered surface
Diameter is boring radius.
Preferably, in slips the first U-shaped sliding slot towards the side of slips central axis be and the first keyway bottom surface radius phase
With cambered surface, the second U-shaped sliding slot is arc identical with righting lug surface radius away from the side of slips central axis in slips
Face.
Preferably, dump tank is offered on the slips, the dump tank is arranged around centralizer body convolutions.
Preferably, the helix angle of the dump tank is 25 °.
Preferably, the radian of the single slips is 200 °.
By adopting the above technical scheme, the present invention has the following advantages that：
The present invention uses split-type design, and the outer diameter and connection type of centralizer main body are consistent with common round bur bar, therefore, drilling
Continuation method of the invention is consistent with common round bur bar continuation method in the process, and it is convenient to connect；First centralizer main body is being clamped
It is connected on rear side of device with round bur bar, centralizer slips group is installed into obvolvent in centralizer master again after centralizer main body is by clamper
On body, without connecting drilling rod disconnection again in clamper front end, it is convenient to connect, and can be improved centralizer in practical coal mine
Utilization rate in probing, can play makes jewel hole increasing hole angle, hold angle or subtracts oblique effect in drilling process, can be improved centralizer in reality
Utilization rate in the probing of border coal mine.
Maximum feature of the invention is that centralizer main body and centralizer slips group are separable, and centralizer is not whole dynamic by drilling machine
Power head and clamper maximum open aperture limitation.The connecting of centralizer main body and common drilling rod connect after separation, slips exists
It is installed using cohesion style clamper front end.
Centralizer slips group of the invention can the replacement when wearing up to a certain degree, the use of centralizer of the present invention can be extended
Service life, centralizer main body can Reusability, save the cost.
To sum up, the present invention can be connected and be played with round bur bar and make jewel hole increasing hole angle, hold angle in drilling process or subtract oblique work
With, and have many advantages, such as to be easy to install and remove, be simple to manufacture, low cost, connect reliable and be hardly damaged.
Detailed description of the invention
Fig. 1 is assembling structure schematic diagram of the invention；
Fig. 2 is the A-A diagrammatic cross-section of Fig. 1；
Fig. 3 is the structural schematic diagram of centralizer main body in the present invention；
Fig. 4 is the B-B diagrammatic cross-section of Fig. 3；
Fig. 5 is the C-C diagrammatic cross-section of Fig. 3；
Fig. 6 is the structural schematic diagram of slips in the present invention；
Fig. 7 is the A-A diagrammatic cross-section of Fig. 6；
Fig. 8 is the right view of Fig. 6；
Fig. 9 is the partial enlarged view in Fig. 7 at A；
Figure 10 is the partial enlarged view in Fig. 7 at B.
Specific embodiment
As shown in Figures 1 to 10, a kind of split type coal mine circle stile of the invention is split type, including righting
Device main body 1 and centralizer slips group；
The centralizer main body 1 be with the consistent hollow cylinder of round bur shank diameter, the both ends of centralizer main body 1 are respectively arranged with public affairs
Buckle joint 2 and female connector 3, centralizer main body 1 are connect by male joint 2 and female connector 3 with round bur bar, centralizer main body
Axially disposed the first keyway of twice 4 and the second keyway of twice 5 having for installing centralizer slips group, the first key of twice on 1
Slot 4 is mutually symmetrical with, and the bottom surface of the first keyway 4 is cambered surface, and twice the second keyway 5 is mutually symmetrical with, and the second keyway 5 divides for installing and dismounting
Section 51 and limit section 52, limit section 52 are arc keyway and limit the transverse shape of section 52 and the cross section shape of the first keyway 4
Shape is consistent, and installing and dismounting section 51 is the bottom surface opening plane concordant with 52 lowest point of section is limited.
The centralizer slips group includes that two structures are identical and the slips 6 of mutual obvolvent, the radian of single slips 6 are
200 °, the length of slips 6 is equal to the half of 4 length of the first keyway, and outer diameter and the bore diameter of slips 6 match, slips 6
Internal diameter it is consistent with the diameter of round bur bar, the inner wall of slips 6 is axially disposed the first convex key 7, and the first convex key 7 is mounted on first
In keyway 4, one end of the first convex key 7 is abutted with wherein one end of the first keyway 4.
One open sides of slips 6 are axially disposed the first U-shaped sliding slot 8, and the opening of the first U-shaped sliding slot 8 deviates from slips 6
Central axis, another open sides of slips 6 are axially disposed the second U-shaped sliding slot 9, the opening direction of the second U-shaped sliding slot 9
The central axis of slips 6, the second U-shaped cunning of the first of one of slips 6 U-shaped sliding slot 8 and another slips 6 of mutual obvolvent
Slot 9 is mutually inserted, i.e.,：One side walls of the U-shaped sliding slot 8 of the first of one of slips 6 are connected to the of another slips 6
In two U-shaped sliding slots 9, meanwhile, a side walls of the second U-shaped sliding slot 9 are connected in the first U-shaped sliding slot 8.Such as Fig. 2 institute
Show, forms complete second convex key 10 after the first U-shaped sliding slot 8 and the second U-shaped 9 grafting of sliding slot, the second convex key 10 is mounted on second
In keyway 5.
The surface of slips 6 is axially disposed righting convex block 11, and the surface of righting convex block 11 is cambered surface, the radius of the cambered surface
For boring radius.
First U-shaped sliding slot 8 is identical with 4 bottom surface radius of the first keyway towards the side of 6 central axis of slips in slips 6
Cambered surface, the second U-shaped sliding slot 9 is arc identical with 11 surface radius of righting convex block away from the side of 6 central axis of slips in slips 6
Face.
Dump tank 12 is offered on the slips 6, the dump tank 12 is arranged around 1 spiral of centralizer main body, the row
The helix angle of slag chute 12 is 25 °.
When centralizer slips group is installed, centralizer slips group is connected to centralizer master by U-shaped sliding slot and convex key obvolvent
Connecting can be completed on body 1, specially：The first convex key 7 of one of slips 6 is first installed therein the first keyway 4 together
It is interior, then the first convex key 7 of another slips 6 is mounted in another the first keyway of road 4, it, will be another when installing another slips 6
One slips 6 slides into limit section 52 along the installing and dismounting section 51 of the second keyway 5, and U-shaped by the first of another slips 6 simultaneously
One side wall of sliding slot 8 and the second U-shaped sliding slot 9 is slidably connected at the second U-shaped sliding slot 9 and the first U of one of slips 6 respectively
In type sliding slot 8.When slips 6 is installed, it need to guarantee that 12 rotation direction of dump tank of two slips 6 is consistent.Centralizer according to the present invention exists
State in drilling, centralizer slips group can be limited by the end of the first keyway 4 and the second keyway 5.
In drilling process, continuation method of the invention is consistent with common round bur bar continuation method（Centralizer main body 1 is clamping
It is connected on rear side of device with round bur bar）, centralizer slips group is installed into obvolvent in centralizer master after centralizer main body 1 passes through clamper
On body 1, playing makes jewel hole increasing hole angle, hold angle or subtracts oblique effect in drilling process, improves centralizer in the probing of practical coal mine
Utilization rate.
The present embodiment not makes any form of restriction shape of the invention, material, structure etc., all according to this hair
Bright technical spirit any simple modification, equivalent change and modification to the above embodiments, belong to the technology of the present invention side
The protection scope of case.
Claims (7)
1. split type coal mine circle stile, it is characterised in that：The centralizer be it is split type comprising centralizer main body and
Centralizer slips group；
The centralizer main body be with the consistent hollow cylinder of round bur shank diameter, the both ends of centralizer main body are respectively arranged with pin thread
Connector and female connector, axially disposed the first keyway of twice and two having for installing centralizer slips group in centralizer main body
The second keyway of road, the first keyway of twice is mutually symmetrical with, and the bottom surface of the first keyway is cambered surface, and the second keyway of twice is mutually symmetrical with, the
Two keyways are divided into installing and dismounting section and limit section, and limit section is arc keyway and the transverse shape and the first keyway for limiting section
Transverse shape is consistent, the bottom surface the installing and dismounting Duan Weiyi opening plane concordant with limit section lowest point；
The centralizer slips group includes that two structures are identical and the slips of mutual obvolvent, and it is long that the length of slips is equal to the first keyway
The half of degree, outer diameter and the bore diameter of slips match, and the internal diameter of slips is consistent with the diameter of round bur bar, slips it is interior
Wall is axially disposed the first convex key, and the first convex key is mounted in the first keyway, one end of the first convex key and the first keyway its
Middle one end abuts.
2. split type coal mine according to claim 1 circle stile, it is characterised in that：One open sides of slips
Axially disposed to have the first U-shaped sliding slot, the opening of the first U-shaped sliding slot deviates from the central axis of slips, another open sides of slips
Axially disposed have the second U-shaped sliding slot, the opening of the second U-shaped sliding slot towards slips central axis, the of one of slips
Second U-shaped sliding slot of one U-shaped sliding slot and another slips of mutual obvolvent is mutually inserted, the first U-shaped sliding slot and the second U-shaped sliding slot
Complete second convex key is formed after grafting, the second convex key is mounted in the second keyway.
3. split type coal mine according to claim 2 circle stile, it is characterised in that：The surface of slips is along axial direction
It is provided with righting convex block, the surface of righting convex block is cambered surface, and the radius of the cambered surface is boring radius.
4. split type coal mine according to claim 3 circle stile, it is characterised in that：First U-shaped cunning in slips
Slot is cambered surface identical with the first keyway bottom surface radius towards the side of slips central axis, and the second U-shaped sliding slot deviates from slips
The side of slips central axis is cambered surface identical with righting lug surface radius.
5. split type coal mine according to claim 1 circle stile, it is characterised in that：It is offered on the slips
Dump tank, the dump tank are arranged around centralizer body convolutions.
6. split type coal mine according to claim 5 circle stile, it is characterised in that：The spiral of the dump tank
Lift angle is 25 °.
7. split type coal mine according to claim 1 circle stile, it is characterised in that：The arc of the single slips
Degree is 200 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810748859.9A CN108868659B (en) | 2018-07-10 | 2018-07-10 | Split type round drill rod centralizer for coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810748859.9A CN108868659B (en) | 2018-07-10 | 2018-07-10 | Split type round drill rod centralizer for coal mine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108868659A true CN108868659A (en) | 2018-11-23 |
| CN108868659B CN108868659B (en) | 2020-04-28 |
Family
ID=64300374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810748859.9A Active CN108868659B (en) | 2018-07-10 | 2018-07-10 | Split type round drill rod centralizer for coal mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108868659B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109339714A (en) * | 2018-12-27 | 2019-02-15 | 河南理工大学 | A kind of directional drilling anchor cable drill stem of preventing sticking |
| CN109458142A (en) * | 2018-12-18 | 2019-03-12 | 新疆贝肯能源工程股份有限公司 | Righting connector |
| CN111561276A (en) * | 2020-06-10 | 2020-08-21 | 中国石油天然气股份有限公司 | Split type slip centralizing protector for continuous oil pipe |
| CN112983296A (en) * | 2019-12-13 | 2021-06-18 | 中国石油天然气集团有限公司 | Rotatable centralizer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5174679A (en) * | 1990-09-18 | 1992-12-29 | Gummi-Jager Kommanditgesellschaft Gmbh & Cie | Protector for bore rods and pump rods |
| CN2709639Y (en) * | 2004-07-07 | 2005-07-13 | 大庆石油管理局 | Split casing centralising apparatus |
| CN201007187Y (en) * | 2007-02-06 | 2008-01-16 | 大港油田集团有限责任公司 | Split type centralizer |
| CN201090151Y (en) * | 2007-08-15 | 2008-07-23 | 李凡 | Sucker rod clamping centralizer |
| CN101967952A (en) * | 2010-10-26 | 2011-02-09 | 西南石油大学 | Fall prevention device for torsional impacter |
| CN202745727U (en) * | 2012-07-04 | 2013-02-20 | 中国石油天然气股份有限公司 | Manual combined oil pipe centralizer |
-
2018
- 2018-07-10 CN CN201810748859.9A patent/CN108868659B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5174679A (en) * | 1990-09-18 | 1992-12-29 | Gummi-Jager Kommanditgesellschaft Gmbh & Cie | Protector for bore rods and pump rods |
| CN2709639Y (en) * | 2004-07-07 | 2005-07-13 | 大庆石油管理局 | Split casing centralising apparatus |
| CN201007187Y (en) * | 2007-02-06 | 2008-01-16 | 大港油田集团有限责任公司 | Split type centralizer |
| CN201090151Y (en) * | 2007-08-15 | 2008-07-23 | 李凡 | Sucker rod clamping centralizer |
| CN101967952A (en) * | 2010-10-26 | 2011-02-09 | 西南石油大学 | Fall prevention device for torsional impacter |
| CN202745727U (en) * | 2012-07-04 | 2013-02-20 | 中国石油天然气股份有限公司 | Manual combined oil pipe centralizer |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109458142A (en) * | 2018-12-18 | 2019-03-12 | 新疆贝肯能源工程股份有限公司 | Righting connector |
| CN109339714A (en) * | 2018-12-27 | 2019-02-15 | 河南理工大学 | A kind of directional drilling anchor cable drill stem of preventing sticking |
| CN112983296A (en) * | 2019-12-13 | 2021-06-18 | 中国石油天然气集团有限公司 | Rotatable centralizer |
| CN111561276A (en) * | 2020-06-10 | 2020-08-21 | 中国石油天然气股份有限公司 | Split type slip centralizing protector for continuous oil pipe |
| CN111561276B (en) * | 2020-06-10 | 2021-08-13 | 中国石油天然气股份有限公司 | Split type slip centralizing protector for continuous oil pipe |
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| Publication number | Publication date |
|---|---|
| CN108868659B (en) | 2020-04-28 |
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