CN207315310U - A kind of recyclable coal bed gas extraction borehole stability maintenance device - Google Patents
A kind of recyclable coal bed gas extraction borehole stability maintenance device Download PDFInfo
- Publication number
- CN207315310U CN207315310U CN201721043117.3U CN201721043117U CN207315310U CN 207315310 U CN207315310 U CN 207315310U CN 201721043117 U CN201721043117 U CN 201721043117U CN 207315310 U CN207315310 U CN 207315310U
- Authority
- CN
- China
- Prior art keywords
- support arm
- arc
- slide bar
- contact plate
- screw
- 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.)
- Expired - Fee Related
Links
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses a kind of recyclable coal bed gas extraction borehole stability maintenance device, including：Position dial plate, rotation rocking handle, drive screw, support arm, the anti-skidding contact plate of arc, anti-back formula connecting screw etc..The positioning dial plate intuitively reflects supporting drilling situation；The rotation rocking handle provides power for whole device；Whole device is connected and is that it transmits power by the drive screw, promotes left and right slide bar is opposite to slide；The support arm is connected through the hinge with left and right slide bar, the anti-skidding contact plate of arc；The anti-skidding contact plate of arc is collapsed by support arm to be moved to hole wall, is finally close to hole wall and is reached fixed point support action；The anti-back formula connecting screw, is to connect several devices with single support arm, with the coal wall in the range of the whole drilling hole stress concentration of supporting.The utility model can realize that prevention drilling collapse hole, improves Completion of Drilling Hole rate, and then improve gas pumping efficiency to borehole wall area of stress concentration supporting role.
Description
Technical field
It the utility model is related to and safeguard borehole stability technical field, it is proposed that a kind of recyclable coal bed gas extraction drilling
Stability Maintenance device.
Background technology
High methane weak seam, soft or hard compound seam and projecting coal bed deep well drilling are generally acknowledged global problems.Upper
When stating construction drill in coal seam, often phenomena such as generation spray orifice, collapse hole, plug-hole, bit freezing, stick of tool, sound coal big gun, it can all be attributed to
The stress field of drilling surrounding coal seam with gas and dynamic buckling problem, i.e. drilling hole caused by the reallocation of flow field in drilling process
Wall unstable failure.Hole wall unstability causes that coal bed drilling one-tenth porosity is relatively low, and drilling depth is limited, and drilling gas is even induced when serious
The accidents such as burning, working face coal and gas prominent, the gas control effect of serious confinement portion high methane and projecting mine.For a long time
Since, though domestic and foreign scholars have carried out numerous studies for coal bed drilling hole wall destabilization problems, focus mostly on and filled in drilling construction
In terms of standby and technique improvement.It is another to there is scholar to carry out preliminary analysis with visiting to some phenomenons occurred in coal bed drilling work progress
Beg for.Therefore, it is necessary to can stably support drilling steady for the relatively low phenomenon of drilling collapse hole, coal bed drilling one-tenth porosity, design one kind
Fixed device, to improve the one-tenth porosity of drilling, increase coal-bed gas is administered.
Utility model content
The purpose of the utility model is to overcome the deficiency of existing drilling maintenance technology, there is provided a kind of recyclable coal-bed gas
Extraction borehole Stability Maintenance device, realizes in supporting role of the drilling hole stress concentration zones to borehole wall, is collapsed with reducing drilling
Porosity, improves Completion of Drilling Hole rate, improves gas pumping efficiency.
To achieve these goals, technical solution is used by the utility model：
A kind of recyclable coal bed gas extraction borehole stability maintenance device, including：Position dial plate, rotation rocking handle, transmission
Screw rod, left and right cylinder type slide bar, support arm, the anti-skidding contact plate of arc, anti-back formula connecting screw；The device will by drive screw
It is connected, and the rotation rocking handle positioned at device front end provides power for it, and drives drive screw to rotate, and promotes left and right cylinder
Type slide bar is opposite to be slided, and support arm is connected through the hinge with left and right cylinder type slide bar, and support arm is opposite in left and right cylinder type slide bar
Start to collapse under movement, then support the anti-skidding contact plate of arc, the last anti-skidding contact plate of arc is close to hole wall and reaches fixed point
Support action, and anti-back formula connecting screw, can connect several devices with single support arm, whole with supporting
Coal wall in the range of drilling hole stress concentration.
The positioning dial plate rises to the process of complete supporting hole wall, i.e. 1 generation with numeral reflection in dial plate from support arm
Table initial position；2 represent the position of anti-skidding hangnail contact hole wall on the anti-skidding contact plate of arc；3-4, which represent anti-skidding hangnail surrender, becomes
Shape process；5 represent the position that anti-skidding hangnail surrenders arc contact plate contact hole wall completely；6-7, which represent support arm, hole wall
The process of opposition；8, which represent support arm, has hole wall the position of maximum support active force.
The rotation rocking handle is by rocking bar and holds cylinder and forms, and screw thread is made using rubber material in its surface, has reached rotation
Anti-skidding effect when turning.An abrasion-proof rubber cushion is padded between fixed sloped footing and cylinder type slide bar, drives and fixes in drive screw
When sloped footing promotes the reach of left and right cylinder type slide bar, fixed sloped footing and left and right cylinder type slide bar direct friction are reduced to the greatest extent
To avoid equipment loss.
Whole device is connected and transmits power for it by the drive screw, is contacted with left and right cylinder type slide bar
Screw surface screw thread turn to be opposite so that rotation rocking handle rotation when or so cylinder type slide bar energy relative motion, will support
Arm gathering supports the anti-skidding contact plate of arc and reaches the effect of supporting hole wall.
The left and right cylinder type slide bar is arranged to left and right two, and left and right cylinder type slide bar is in close contact with screw rod, in it
There is the screw thread to match with contacting screw rod on surface, to coordinate screw rod in rotary moving, reaches the effect above.
The support arm is connected through the hinge with left and right cylinder type slide bar, the anti-skidding contact plate of arc, when drive screw pushes away
Moving slide-bar moves, and support arm collapses, and supports the anti-skidding contact plate of arc and supports hole wall.Make to reach effective support hole wall
With.Pass through FLAC3DSoftware simulates borehole circumference stress distribution law and area of stress concentration scope, and it is right above and below borehole wall to find
Facade is concentrated the most with left and right opposite stress, i.e., stress distribution area is upper lower opposite face and left and right opposite, therefore in screw rod
Two pairs of support arms setting up and down, then two pairs of support arms are set in upper lower support arm vertical direction, with the corresponding stress distribution of correspondence
Area.
The material that the anti-skidding contact plate of the arc is selected is vulcanie material, when borehole wall surrounding medium slump
When, the arc contact plate of vulcanie material can effectively reduce impact force during coal body slump, to reach protection support arm
Effect.Along the periphery of arc contact plate, the anti-skidding hangnail of 1~2mm long of arrangement.In support arm by the anti-skidding contact plate branch of arc
When propping up, the anti-skidding hangnail on its surface contacts hole wall coal body, deforms and be close to coal body first, and one acts like one " sucker ",
During rotation rocking handle drives drive screw rotation, left and right cylinder type slide bar to promote support arm gathering, rotated in drive screw
Opposite direction give the effect of one power of arc contact plate, damping arc contact plate follows screw rod to rotate, to prevent support arm and a left side
Right cylinder type slide bar coaxial rotating；Secondly it is that the coal cinder that will be scattered around borehole wall is incorporated into one to act like one " hand "
Block, prevents in device progradation, and coal cinder influences fltting speed from hole wall slump.
The anti-back formula connecting screw is made of hold-doun nut and fixing bolt, be by two single support arms can
The recyclable coal bed gas extraction drilling for recycling coal bed gas extraction borehole stability maintenance device connection composition dual-gripper arm is steady
Qualitative maintenance device, can subsequently be formed according to the requirement of specific live borehole wall stress distribution scope three support arms, four
The recyclable coal bed gas extraction borehole stability maintenance device such as brace, the rotation for tightening direction and drive screw of anti-back formula screw
It is consistent to turn direction so that in screw rod rotary course connecting screw with rotation be more and more tighter, before preventing rotation
The recyclable coal bed gas extraction borehole stability maintenance device separation of two single support arms, influences applying for later stage during
Work operates.
Brief description of the drawings
A kind of structure charts of the single support arm of recyclable coal bed gas extraction borehole stability maintenance device of Fig. 1
A kind of dual-gripper arm connection structure diagrams of recyclable coal bed gas extraction borehole stability maintenance device of Fig. 2
A kind of drilling support arrangement front view of recyclable coal bed gas extraction borehole stability maintenance devices of Fig. 3
A kind of drilling support arrangement sectional view of recyclable coal bed gas extraction borehole stability maintenance devices of Fig. 4
In figure：1-positioning dial plate；2-rotation rocking handle；3-drive screw；4-fix sloped footing；5-left and right cylinder
Type slide bar；6-support arm；The anti-skidding contact plate of 7-arc；8-anti-back formula screw；9-fixing nut；10-fixing bolt；
11-anti-back formula connecting screw.
Embodiment：
Below in conjunction with the accompanying drawings, specific embodiment of the present utility model is further described.
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of recyclable coal bed gas extraction borehole stability maintenance device, including：Positioning
Dial plate 1；Rotate handle 2；Drive screw 3；Fixed sloped footing 4；Left and right cylinder type slide bar 5；Support arm 6；The anti-skidding contact of arc
Plate 7；Anti-back formula screw 8；Fixing nut 9；Fixing bolt 10；Anti-back formula connecting screw 11.Before positioning dial plate 1 is located at the device
End, it is the situation for intuitively reflecting supporting hole wall that it, which is acted on,；The effect of rotation handle 2 is to provide rotating power；Drive screw 3
Whole device is connected, and behind power passed to；Fixed sloped footing 4 promotes left and right cylinder under drive screw effect
Type slide bar 5 moves forward；5a and 5b relative motions in the case where the rotation of drive screw 3 drives；By support arm while 5a and 5b relative motions
6 supports are collapsed, and the anti-skidding support of contact plate 7 of arc finally is close to borehole wall, reach fixed point support hole wall effect.Pass through anti-back
Formula connecting screw 11 can connect other single recyclable coal bed gas extraction borehole stability maintenance devices of support arm, pass
Movement above is repeated under the turning effort of dynamic screw rod 3, until the coal wall in the range of whole borehole wall stress distribution is complete
Arrangement support terminates.Operating method is as follows：
The device is connected by drive screw 3, and the rotation handle 2 positioned at device front end provides power for it,
And drive drive screw 3 to rotate, promote left and right cylinder type slide bar 5 is opposite to slide, support arm 6 passes through with left and right cylinder type slide bar 5
Hinge connection, support arm 6 start to collapse, then support the anti-skidding contact plate 7 of arc under the relative movement of left and right cylinder type slide bar 5
Rise, the last anti-skidding contact plate 7 of arc is close to hole wall to reach fixed point support action, and anti-back formula connecting screw 11 can be by several
The device with single support arm connects, with the coal wall in the range of the whole drilling hole stress concentration of supporting.
The above is only the preferred embodiment of the utility model only, all at this not using the utility model as limitation
All any modification, equivalent and improvement made within the spirit and principle of utility model etc. should be included in the utility model
Within protection domain.
Claims (7)
1. a kind of recyclable coal bed gas extraction borehole stability maintenance device, including：Position dial plate, rotation rocking handle, transmission spiral shell
Bar, left and right cylinder type slide bar, support arm, the anti-skidding contact plate of arc, anti-back formula connecting screw；The device by drive screw by its
Connect, the rotation rocking handle positioned at device front end provides power for it, and drives drive screw to rotate, and promotes left and right cylinder type
Slide bar is opposite to be slided, and support arm is connected through the hinge with left and right cylinder type slide bar, and support arm is in the opposite shifting of left and right cylinder type slide bar
Start to collapse under dynamic, then support the anti-skidding contact plate of arc, the last anti-skidding contact plate of arc is close to hole wall and reaches fixed point branch
Shield acts on, and anti-back formula connecting screw, can connect several devices with single support arm, entirely be bored with supporting
Coal wall in the range of the stress concentration of hole.
A kind of 2. recyclable coal bed gas extraction borehole stability maintenance device according to claim 1, it is characterised in that：
Numeral and left and right cylinder type slide bar relative movement displacement, the support conditions of support arm on the positioning dial plate are to correspond
Relation.
A kind of 3. recyclable coal bed gas extraction borehole stability maintenance device according to claim 2, it is characterised in that：
Numeral 2,5,8 on the positioning dial plate represents the contact of arc contact plate, setting load, 3 positions of maximum support power,
Before device begins to use, dial plate is directed toward to 2 position, to damp left and right cylinder type slide bar, support arm, arc contact plate with biography
Dynamic screw coaxial rotation.
A kind of 4. recyclable coal bed gas extraction borehole stability maintenance device according to claim 1, it is characterised in that：
The left and right cylinder type slide bar is in close contact with screw rod, its inner surface, which has, is in contact with it the screw thread that screw rod matches, to coordinate
Drive screw is rotated and relatively moved.
A kind of 5. recyclable coal bed gas extraction borehole stability maintenance device according to claim 1, it is characterised in that：
The support arm is connected through the hinge with left and right cylinder type slide bar, the anti-skidding contact plate of arc, when drive screw promotes left and right
Cylinder type slide bar moves, and support arm collapses and then supports the anti-skidding contact plate of arc and moved to hole wall, finally prevents slipping by arc
Touch panel is close to borehole wall and has reached fixed point support action.
A kind of 6. recyclable coal bed gas extraction borehole stability maintenance device according to claim 1, it is characterised in that：
The anti-skidding hangnail of 1~2mm long is arranged on the periphery of the anti-skidding contact plate of the arc, can be damped arc contact plate and be followed screw rod to rotate
And the coal cinder being scattered around borehole wall is incorporated into one piece, prevent coal cinder from hole wall slump.
A kind of 7. recyclable coal bed gas extraction borehole stability maintenance device according to claim 1, it is characterised in that：
The anti-back formula connecting screw is made of hold-doun nut and fixing bolt, is the dress that several are carried to single support arm
Put and connect, with the coal wall in the range of the whole drilling hole stress concentration of supporting, anti-back formula screw tightens direction and drive screw
Direction of rotation be consistent, in screw rod rotary course connecting screw with rotate it is more and more tighter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721043117.3U CN207315310U (en) | 2017-08-17 | 2017-08-17 | A kind of recyclable coal bed gas extraction borehole stability maintenance device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721043117.3U CN207315310U (en) | 2017-08-17 | 2017-08-17 | A kind of recyclable coal bed gas extraction borehole stability maintenance device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207315310U true CN207315310U (en) | 2018-05-04 |
Family
ID=62432740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721043117.3U Expired - Fee Related CN207315310U (en) | 2017-08-17 | 2017-08-17 | A kind of recyclable coal bed gas extraction borehole stability maintenance device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207315310U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387025A (en) * | 2017-08-17 | 2017-11-24 | 中国矿业大学(北京) | A kind of recyclable coal bed gas extraction borehole stability attending device |
-
2017
- 2017-08-17 CN CN201721043117.3U patent/CN207315310U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387025A (en) * | 2017-08-17 | 2017-11-24 | 中国矿业大学(北京) | A kind of recyclable coal bed gas extraction borehole stability attending device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207315310U (en) | A kind of recyclable coal bed gas extraction borehole stability maintenance device | |
| CN103742076A (en) | Axial vibrator | |
| CN108915686A (en) | A kind of coal road danger of burst area bore hole axis-two-way pressure relief method of diameter | |
| CN107842312B (en) | A kind of underground slotting constructing device | |
| CN203531747U (en) | Frame-column-type emulsified liquid drilling machine for fully-mechanized face fault passing | |
| CN105221073A (en) | Long horizontal sections horizontal well water attack impulse oscillation pressurizing tool | |
| CN107932075B (en) | A kind of drilling chamfering all-in-one machine | |
| CN110952923B (en) | Rock breaking equipment for petroleum drilling rock stratum | |
| CN204225782U (en) | A kind of large aperture, coal seam deep drill Anti-inclining drilling rod | |
| CN114183075A (en) | Underground drilling-expanding-protecting integrated construction device and method | |
| CN107387025A (en) | A kind of recyclable coal bed gas extraction borehole stability attending device | |
| CN206329290U (en) | A kind of oil-extractor polish-rod anticollision bending apparatus | |
| CN210460521U (en) | Supporting device for air leg type rock drill | |
| CN209469395U (en) | A kind of drilling rod moves pendulum conveying equipment automatically | |
| CN209099963U (en) | A kind of geotechnical engineering investigation drilling equipment | |
| CN202202816U (en) | All-directional rotary drill arm device | |
| CN209083229U (en) | A kind of novel mechanical boring casing | |
| CN219159700U (en) | Hydraulic push bench | |
| CN205743716U (en) | Guide Anti-inclining drill bit | |
| CN206329278U (en) | A kind of Counterboring apparatus for geological exploration | |
| CN208214402U (en) | A kind of civil construction perforating device | |
| CN205422530U (en) | Anchor rod drilling carriage chassis structure | |
| CN105804651B (en) | A kind of new underground drill rig for being used to dig up mine | |
| CN208966193U (en) | A kind of geotechnical investigation equipment support device | |
| CN220202822U (en) | Hydraulic breaking hammer movement structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180504 Termination date: 20190817 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |