CN207647533U - A kind of scalable ripple anchor pole combination unit - Google Patents
A kind of scalable ripple anchor pole combination unit Download PDFInfo
- Publication number
- CN207647533U CN207647533U CN201721871084.1U CN201721871084U CN207647533U CN 207647533 U CN207647533 U CN 207647533U CN 201721871084 U CN201721871084 U CN 201721871084U CN 207647533 U CN207647533 U CN 207647533U
- Authority
- CN
- China
- Prior art keywords
- bar
- anchor pole
- interior bar
- outer bar
- scalable
- 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
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Abstract
The utility model patent is a kind of scalable ripple anchor pole combination unit.The utility model includes：Interior bar（1）, outer bar（2）, pallet（3）, tightening nut（4）, connection valve（5）, screw hole（6）, trip bolt（7）.The interior bar（1）Outer diameter be less than outer bar（2）Internal diameter, through connection valve（5）By interior bar（1）And outer bar（2）Connection, makes device reach scalable effect, anchor pole collapsing length is by trip bolt（7）It is fixed.The utility model is applied to coal mine, and tunnel support engineering has tensile strength high, and good percentage elongation is easy to carry, especially because rock-bolt length used is more than span length or height, and the case where cause constructional difficulties etc..
Description
Technical field
The utility model anchor pole is a kind of scalable ripple anchor pole combination unit, is practically applicable to coal mine, tunnel support engineering etc.
Field.
Background technology
Anchor pole is widely used in coal mine, tunnel, state's rock reinforcing of slope project and supporting field.Currently, mine roadway
Common anchor bar suspension device has twisted steel anchor rod and steel strand anchor cable in engineering.Coal in China mining depth constantly increases, perhaps
The characteristics of adopting for more coal mines has reached 1000m or more deeply, and roadway surrounding rock often shows as large deformation under large ground pressure, makes
Tunnel gross distortion, or even the disasters such as fall of ground, rock burst, bump occur.However, conventional threads steel anchor rod Zhi Shi Jian Unit
Rigid material, Jie Gou Jian Unit, elongation percentage is low, be only capable of provide very little deflection, roadway surrounding rock large deformation be more than common bolt
Bearing capacity after anchor pole be easy to be pulled off, lead to suspension roof support structural failure.Moreover, in mine laneway, the installation of anchor pole
Space is smaller, examines rate to the factor of roof bolting equipment size, the current rock-bolt length made is generally shorter.Its anchorage length is general
For 1 ~ 2.4m, this factor limits the use scope of anchor pole, although having steel strand anchor cable now, can bend and deposit in tunnel
Storage uses, and anchoring range can reach 6 ~ 8m, but the shearing strength of anchor cable is less than anchor pole, is easy to happen in broken rock
Failure by shear and fail.A kind of flexible roof bolt being composed of steel strand wires and hollow bolt is also invented at present, but it is this
Anchor pole also lacks extensibility, cannot very well be adapted in the tunnel of country rock large deformation.
Invention content
It is an object of the invention to overcome the prior art, a kind of scalable ripple anchor pole combination unit, solution are provided
Certainly existing anchor structure is unreasonable, and lever strength and elongation percentage are low, cannot meet roadway surrounding rock large deformation needs, and due to underground
Lane space is limited, the problems such as limiting the length of usable anchor pole.The present invention is achieved by the following technical solutions：
A kind of scalable ripple anchor pole combination unit, including：Interior bar（1）, outer bar（2）, pallet（3）, tightening nut（4）、
Connection valve（5）, screw hole（6）And trip bolt（7）, which is characterized in that by interior bar（1）And outer bar（2）Forging extruding forms ripple
A combination, interior bar are assembled on the basis of bar（1）Outer diameter is slightly less than outer bar（2）Internal diameter so that reach telescopic effect,
Work as interior bar（1）When reaching required length, trip bolt can be used（7）Fixed interior bar（1）Position.The ripple outer bar（2）Two
End is machined with and the tightening nut（4）And connection valve（5）The screw thread of cooperation, outer bar（2）One end is by connection valve（5）And interior bar
（1）It is connected, the other end installs the pallet（3）Afterwards with the tightening nut（4）Scalable ripple anchor pole is combined the unit and enclosed
Rock fastens.Due to interior bar（1）Outer bar（2）Combination, suspension roof support length can be allow to reach 1 ~ 5m.So that anchor pole is filled up
The blank in this field.
The utility model anchor pole advantageous effect is：Ripple anchor pole has flexible big, good percentage elongation characteristic.Using between ripple
Structure Light deformation discharges stress concentration, and structure is uniform, improves ripple anchor pole entirety tensile strength.The increase of anchorage length is widened
The use scope of anchor pole so that anchor pole broader applications in the narrow underground engineering support field of installation space, especially by
Situations such as rock-bolt length needed for roadway surrounding rock is more than head-room or width, and existing anchor pole cannot use.
Description of the drawings
Fig. 1 is a kind of installation diagram of scalable ripple anchor pole combination unit and country rock.
Fig. 2 is the part drawing of the device：（1）Interior bar,（2）Outer bar,（3）Pallet,（4）Tightening nut,（5）Connection valve,（6）
Screw hole,（7）Trip bolt.
Specific implementation mode
First with existing jumbolter equipment in anchorage zone construction drill, obtained drillable length is assembled bolt
Whole anchorage length, a diameter of anchor pole interior bar（1）Required aperture；Then superficial part is drilled using larger-diameter jumbolter
Enlarged-diameter, length are ripple steel anchor rod outer bar（2）Anchorage length, diameter anchor pole outer bar（2）Required aperture；It finally utilizes existing
Air compressor compressed air injection hole is cleared up into floating dust therein.
By interior bar（1）It stretches in a distance merging hole, needs interior bar until being stretched to（1）Length, utilize fixed spiral shell
Nail（7）By interior bar（1）With outer bar（2）It is fixed, whole anchor pole is placed in drilling, using resin explosive roll by interior bar（1）In rock stratum
In end fix.Pallet is installed in termination point of anchor rod（3）, tightening nut is installed after then applying prestressing force to anchor pole（4）, installation
It completes.
Claims (1)
1. a kind of scalable ripple anchor pole combination unit, including:Interior bar（1）, outer bar（2）, pallet（3）, tightening nut（4）, even
Connect valve（5）, screw hole（6）And trip bolt（7）, which is characterized in that by interior bar（1）And outer bar（2）Forging extruding forms ripple bar
On the basis of be assembled into a combination, the interior bar（1）Outer diameter be less than outer bar（2）Internal diameter, make up to scalable effect,
Anchor pole collapsing length is by trip bolt（7）It is fixed, the ripple outer bar（2）Both ends be machined with and the tightening nut（4）With
Connection valve（5）Required screw thread, the outer bar（2）One end passes through connection valve（5）And interior bar（1）It is connected, works as interior bar（1）It is elongated to
When required length, trip bolt is used（7）Fixed, the other end installs the pallet（3）, with the tightening nut（4）By the wave
Line anchor pole is combined the unit to be fastened with country rock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721871084.1U CN207647533U (en) | 2017-12-28 | 2017-12-28 | A kind of scalable ripple anchor pole combination unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721871084.1U CN207647533U (en) | 2017-12-28 | 2017-12-28 | A kind of scalable ripple anchor pole combination unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207647533U true CN207647533U (en) | 2018-07-24 |
Family
ID=62876995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721871084.1U Expired - Fee Related CN207647533U (en) | 2017-12-28 | 2017-12-28 | A kind of scalable ripple anchor pole combination unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207647533U (en) |
-
2017
- 2017-12-28 CN CN201721871084.1U patent/CN207647533U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180724 Termination date: 20181228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |