CN201486580U - Controllable pretightening force pressure relief anchor rope - Google Patents
Controllable pretightening force pressure relief anchor rope Download PDFInfo
- Publication number
- CN201486580U CN201486580U CN2009202245614U CN200920224561U CN201486580U CN 201486580 U CN201486580 U CN 201486580U CN 2009202245614 U CN2009202245614 U CN 2009202245614U CN 200920224561 U CN200920224561 U CN 200920224561U CN 201486580 U CN201486580 U CN 201486580U
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- CN
- China
- Prior art keywords
- pretightning force
- release
- bowl
- pretightening force
- show label
- 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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- Piles And Underground Anchors (AREA)
Abstract
The utility model relates to a controllable pretightening force pressure relief anchor rope, in particular to a pretightening force pressure relief anchor rope device in a mining working support of a coal mine in a mine. A pressure relief device is formed by welding an upper port of a pressure-relief bowl and the outer edge of a reinforcing rib plate pad into a whole; the outer edge of a pretightening force display marking panel is a pretightening force display marking line; one end of a steel stranded wire is fixed in a stable rock layer of a tunnel top plate and the other end of the steel stranded wire is sleeved with a tray which is attached to the tunnel top plate; the press-relief device and the pretightening force display marking panel and an anchorage device are connected into a whole by a plastic connecting sleeve which is then is sleeved on the steel stranded wire; and the reinforcing rib plate pad is attached to the bottom of the tray. The utility model has the advantages that the structure is simple and the operation is convenient; the pretightening display mark is arranged, thus the pretightening force of the anchor rope and the born load can be intuitively observed; and by buffering the pressure by the pressure-relief bowl and adjusting the local curvature of the steel stranded wire, the utility model prevents the steel stranded wire from being broken off, improves the stability and the safety of a tunnel engineering structure and is widely suitable for the support of a coal mine tunnel of the mine.
Description
Technical field:
The utility model relates to controllable type pretightning force release anchor cable device in a kind of release of controllable type the pretightning force anchor cable, particularly colliery, mine shaft and drift supporting.
Background technology:
At present, anchor cable in the existing colliery tunnel support does not have to show the device of anchor cable pretightning force and release, its defective is in beating the process of anchor cable, rely on singlely and read the pretightning force that manometric numerical value is determined anchor cable, can not intuitively show anchor cable pretightning force and actual load of bearing, when mounted anchor cable is carried out safety check, can only rely on stretch-draw once more, time-consuming; The anchor hole of back coal rock layer and top board pallet and T-steel band generation out of plumb, cause the steel strand local buckling in the anchor hole of packing into, back after the reinforcing deforms and pressure that displacement discharges can not get buffering, make the back that is reinforced can not get effective supporting, have a strong impact on the supporting effect of anchor cable.
Summary of the invention:
The purpose of this utility model, provide a kind of controllable type pretightning force release anchor, it is to adopt the distortion of observing pretightning force show label dish, intuitively demonstrate the pretightning force of anchor cable and the load of bearing, installation and the safety check after the installation to anchor cable are quicker and easy to be reliable, can reduce simultaneously the local buckling of the steel strand that anchor hole and top board pallet and T-steel band out of plumb cause, improve the tensile strength of steel strand, the pressure that back behind the pretension deforms and displacement is discharged is cushioned, back is reinforced forcefully, the bearing capacity of more effective raising anchor cable and the safety of roadway support.
The utility model controllable type pretightning force release anchor cable takes following technical scheme to realize, it is to be made of steel strand and pallet and pressure relief device and pretightning force show label dish, plastics adapter sleeve, ground tackle, pressure relief device is the upper port and the integrally welded composition in outer of strengthening the gusset pad by the release bowl, and its outer of pretightning force show label dish is a pretightning force show label line; One end of steel strand is fixed in the stable rock stratum of back, the other end cover tray of steel strand, the tight obedient back of pallet, the plastics adapter sleeve is nested with on steel strand after pressure relief device and pretightning force show label dish and ground tackle are linked into an integrated entity, strengthen the tight obedient tray bottom of gusset pad, the spherical outside surface of the tight obedient release lower part of bowl of Internal Spherical Surface of pretightning force show label dish, the bottom of pretightning force show label dish is a ground tackle, the stretch-draw oil cylinder that the ground tackle bottom is nested with on steel strand is implemented the stretch-draw pretension to steel strand, under the pretightning force effect, release bowl between pallet and the ground tackle produces distortion, simultaneously, pretightning force show label dish is extended by the extruding of release bowl and ground tackle, and its outer of pretightning force show label dish and ground tackle upper surface after the extension coincide, and pretightning force is surely closed mutually with the pretightning force of design.The jay rock stratum that reinforces is subjected to dynamic pressure pressure to manifest outstanding or when having bump, the release bowl continues distortion under the pressure of back, alleviation steel strand and the suffered surge of ground tackle; Out of plumb appears in the anchor hole of back coal rock layer and top board pallet, and the release bowl can be regulated pallet place steel strand local buckling degree, and the tension that improves steel strand is strong.
The effect of the utility model controllable type pretightning force release anchor cable is simple in structure, easy to operate, be provided with and show the tensile force sign, can observe out the pretightning force of anchor cable and the load of bearing intuitively, by release bowl compensator or trimmer pressure and adjusting steel strand local buckling degree, prevent that steel strand are disrumpent feelings, improve roadway engineering stability of structure and safety, be widely used in the supporting in coal mine tunnel, mine.
Description of drawings:
The utility model controllable type pretightning force release anchor cable will describe in further detail in conjunction with the accompanying drawings.
Accompanying drawing is the structural representation of the utility model controllable type pretightning force release anchor cable.
1---steel strand 2---pallet 3---reinforcement gusset pad 4---release bowl 5---adapter sleeve 6---pretightning force show label dish 7---ground tackles
The specific embodiment:
With reference to accompanying drawing, the utility model controllable type pretightning force release anchor cable, it is by steel strand 1, pallet 2, pressure relief device and plastics adapter sleeve 5 constitute with pretightning force show label dish 6 and ground tackle 7, release bowl 4 upper port and the integrally welded formation pressure relief device in reinforcement gusset pad 3 outers, pretightning force show label dish 6 its outers are for showing the pretightning force marker line, one end of steel strand 1 is fixed in the stable rock stratum of back, other end cover tray 2, pallet 2 tight obedient backs, plastics adapter sleeve 5 is nested with on steel strand 1 after pressure relief device and pretightning force show label dish 6 and ground tackle 7 are linked into an integrated entity, strengthen gusset pad 3 tight obedient pallets 2 bottoms, the spherical outside surface of the tight obedient release bowl of the Internal Spherical Surface of pretightning force show label dish 64 bottoms, the bottom of pretightning force show label dish 6 is ground tackles 7, the stretch-draw oil cylinder that ground tackle 7 bottoms are nested with on steel strand 1 is implemented the stretch-draw pretension to steel strand 1, pressure relief device between pallet 2 and the ground tackle 7 and pretightning force show label dish 6 are under the pretightning force effect, 4 distortion of release bowl, simultaneously, after being squeezed, the pretightning force show label dish 6 that release bowl 4 and ground tackle are 7 extends, pretightning force show label dish and ground tackle upper surface coincide, and have promptly reached the requirement of pretightning force.The jay rock stratum is reinforced, and forms a kind of new complex.When new complex was subjected to dynamic pressure pressure to manifest outstanding or has bump, release bowl 4 continued distortion under the pressure of back, the surge that alleviation steel strand 1 and ground tackle 7 are suffered; Out of plumb appears in the anchor hole of back coal rock layer and top board pallet, and release bowl 4 is regulated pallet 2 place's steel strand 1 local buckling degree, improves the tensile strength of steel strand 1.
The embodiment of the utility model controllable type pretightning force release anchor cable, it is to be made of cover tray 2 and pressure relief device and adapter sleeve 5 and pretightning force show label dish 6 and ground tackle 7 on the steel strand 1, pallet 2 bottoms are for strengthening gusset pad 3 and release bowl 4, the external diameter of strengthening gusset pad 3 is consistent with the external diameter of release bowl 4 upper port, it is pressure relief device that release bowl 4 upper port are welded to form one with the outer of strengthening gusset pad 3, the tight card of the Internal Spherical Surface of pretightning force show label dish 6 is in release bowl 4 lower end spherical outside surfaces, the bottom of pretightning force show label dish 6 is a ground tackle 7, plastics adapter sleeve 5 is placed through the endoporus of pressure bowl 4 and pretightning force show label dish 6 and ground tackle 7, and be connected and fixed with the groove of ground tackle 7 endoporus and be integral, one end of steel strand 1 is fixed in the stable rock stratum of back, the other end is implemented stretch-draw by the stretch-draw oil cylinder that is nested with on steel strand 1 of ground tackle 7 bottoms to steel strand 1, ground tackle 7 promotes release bowl 4 and pretightning force show label dish 6 deformation displacements, the spherical deformation of release bowl 4, highly reduction, disk is formed on the bottom, pretightning force show label dish 6 is extended by the extruding of release bowl 4 and ground tackle 7, and the outer of the pretightning force show label dish 6 after the extension and the outer of the ground tackle 7 upper surfaces pretightning force that used power and reinforced roadway jay rock stratum require that coincides is surely closed mutually; When the jay rock stratum that is reinforced was subjected to dynamic pressure pressure to manifest outstanding or has bump, release bowl 4 continued distortion under the pressure of back, the surge that alleviation steel strand 1 and ground tackle 7 are suffered; Out of plumb appears in the anchor hole of back coal rock layer and top board pallet 2, and release bowl 4 can be regulated the local buckling of pallet 2 place's steel strand 1, and the tension that improves steel strand 1 is strong.
Claims (2)
1. controllable type pretightning force release anchor cable, it is to be gone up cover tray (2) and strengthened gusset pad (3) and plastics adapter sleeve (5) and pretightning force show label dish (6) and ground tackle 7 by steel strand (1), it is characterized in that release bowl (4) upper port and strengthen gusset pad (3) outer welding formation pressure relief device, the outer of pretightning force show label dish (6) is a pretightning force show label line, pretightning force show label dish (6) is provided with plastics adapter sleeve (5) with release bowl (4) endoporus, release bowl (4) bottom is nested with pretightning force show label dish (6), is nested with ground tackle (7) on the bottom of steel strand (1).
2. controllable type pretightning force release anchor cable according to claim 1, the reinforcement gusset pad (3) and the release bowl (4) and pretightning force show label dish (6) that it is characterized in that device between pallet (2) and the ground tackle (7), under the pretightning force effect of steel strand (1), pretightning force show label dish (6) is close between release bowl (4) and the ground tackle (7), strengthens gusset pad (3) and release bowl (4) and constitutes compensator or trimmer pressure and show the tensile force sign with pretightning force show label dish (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202245614U CN201486580U (en) | 2009-08-12 | 2009-08-12 | Controllable pretightening force pressure relief anchor rope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202245614U CN201486580U (en) | 2009-08-12 | 2009-08-12 | Controllable pretightening force pressure relief anchor rope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201486580U true CN201486580U (en) | 2010-05-26 |
Family
ID=42425462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202245614U Expired - Fee Related CN201486580U (en) | 2009-08-12 | 2009-08-12 | Controllable pretightening force pressure relief anchor rope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201486580U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943014A (en) * | 2010-08-10 | 2011-01-12 | 中国科学院力学研究所 | Displacement release type anchor head device |
| CN102536279A (en) * | 2010-12-28 | 2012-07-04 | 孟志强 | Elastic and flexible anchor rod |
-
2009
- 2009-08-12 CN CN2009202245614U patent/CN201486580U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943014A (en) * | 2010-08-10 | 2011-01-12 | 中国科学院力学研究所 | Displacement release type anchor head device |
| CN101943014B (en) * | 2010-08-10 | 2012-07-25 | 中国科学院力学研究所 | Displacement release type anchor head device |
| CN102536279A (en) * | 2010-12-28 | 2012-07-04 | 孟志强 | Elastic and flexible anchor rod |
| CN102536279B (en) * | 2010-12-28 | 2014-03-12 | 孟志强 | Elastic and flexible anchor rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100526 Termination date: 20110812 |