CN202900296U - Yielding tension-free prestressed anchor cable - Google Patents
Yielding tension-free prestressed anchor cable Download PDFInfo
- Publication number
- CN202900296U CN202900296U CN 201220574905 CN201220574905U CN202900296U CN 202900296 U CN202900296 U CN 202900296U CN 201220574905 CN201220574905 CN 201220574905 CN 201220574905 U CN201220574905 U CN 201220574905U CN 202900296 U CN202900296 U CN 202900296U
- Authority
- CN
- China
- Prior art keywords
- anchor cable
- tube connector
- clamp nut
- pressure
- stretch
- 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
Images
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses a yielding tension-free prestressed anchor cable which is characterized by comprising steel strands, an anchor cable tray, a connecting pipe and a fastening nut. The connecting pipe is provided with an external thread segment. The steel strands are connected with the connecting pipe which penetrates through the anchor cable tray. The connecting pipe is connected to the anchor cable tray through the fastening nut. A yield component is disposed between the fastening nut and the anchor cable tray. A first steel washer is disposed between the yield component and the anchor cable tray. A second steel washer and an anti-drag washer are sequentially disposed between the yield component and the fastening nut. The yielding tension-free prestressed anchor cable is mounted by an anchor cable drilling machine, the machine is multipurpose, the number of the anchor cable tension tools for use can be decreased, construction procedures are simplified, and efficiency can be improved.
Description
Technical field
The utility model relates to that a kind of colliery tunnel support uses allows press and exempts from the stretch-draw prestressing force anchor cable.
Background technology
Existing anchor cable all is comprised of steel strand and ground tackle.The material capability of steel strand is hard, crisp, poor processability.The ground tackle that anchor cable is used in the coal mine down-hole tunnel supporting is generally strand tapered anchorage, by ground tackle steel strand is applied prestressing force, needs to rely on special-purpose tensioner to carry out stretch-draw, and tensioning process is complicated, and the stretch-draw time is long.Above-mentioned drawbacks limit the application of anchor cable in the coal mine support field.
This shows, be necessary above-mentioned existing anchor cable is improved.
The utility model content
Task of the present utility model is to solve the technical problem that the prior art stream line exists, and provides a kind of pressure that allows exempt from the stretch-draw prestressing force anchor cable.
Its technical solution is:
A kind of pressure that allows is exempted from the stretch-draw prestressing force anchor cable, comprise steel strand, anchor cable pallet, one section tube connector and clamp nut, above-mentioned tube connector is provided with the external thread section that cooperates for clamp nut, steel strand and tube connector link together, tube connector passes the anchor cable pallet, tube connector is connected on the anchor cable pallet by clamp nut in the anchor cable pallet outside.
Between above-mentioned clamp nut and anchor cable pallet, be provided with and allow the pressure member, allow press between member and the anchor cable pallet be provided with iron washer one, be disposed with iron washer two and drag reduction packing ring between member and the clamp nut allowing press.
Above-mentioned clamp nut is provided with shear pin.
Above-mentioned steel strand are fixedly connected in the inner tube of tube connector.
The length of above-mentioned external thread section is 120mm～150mm.
Above-mentioned tube connector is seamless steel pipe.
The utlity model has following useful technique effect:
The utility model is processed into tube connector with seamless steel pipe and replaces the former prestressed ground tackle that applies, and in the anchor cable manufacturing process, tube connector is fastened on the position at former ground tackle place, then, tube connector is carried out rolled thread processing, forms " class anchor pole " structure.In the installation process of anchor cable, just can adopt like this mounting means of anchor pole, utilize anchor cable rig to screw clamp nut to apply prestressing force.In addition, in use, allowing of installing additional presses member can improve supporting effect.This use New Anchor Cable adopts anchor cable rig in installation process, a tractor serves several purposes, can reduce anchor cable tensioning machine tool use, simplify working procedure, be conducive to raise the efficiency.
Description of drawings
Below in conjunction with accompanying drawing and the specific embodiment the utility model is illustrated further
Fig. 1 is the structural principle schematic diagram of a kind of embodiment of the utility model.
Fig. 2 is the application scenarios figure of Fig. 1 mode.
1. tube connectors among the figure, 2. clamp nut, 3. shear pin, 4. drag reduction packing ring, 5. iron washer two, 6. allow the pressure member, 7. iron washer one, 8. anchor cable pallet, 9. steel strand.
The specific embodiment
In conjunction with Fig. 1 and Fig. 2, a kind of allow press exempt from the stretch-draw prestressing force anchor cable, comprise steel strand 9, anchor cable pallet 8, one section tube connector 1 and clamp nut 2.Above-mentioned tube connector is provided with the external thread section that cooperates for clamp nut, and the length of external thread section can be 120mm～150mm.Above-mentioned steel strand and tube connector link together; Preferably, steel strand can be fixedly connected in the inner tube of tube connector.Above-mentioned tube connector passes the anchor cable pallet, tube connector is connected on the anchor cable pallet by clamp nut in the anchor cable pallet outside.
Preferably, between above-mentioned clamp nut and anchor cable pallet, can be provided with to allow and press member 6, allow press between member and the anchor cable pallet be provided with iron washer 1, be disposed with iron washer 25 and drag reduction packing ring 4 between member and the clamp nut allowing press.
Preferably, above-mentioned clamp nut is provided with shear pin 3.
Use procedure of the present utility model can roughly be:
The other end of steel strand is fixed in the boring, with anchor cable pallet, iron washer one, allow and press member, iron washer two, drag reduction packing ring to be contained in successively on the tube connector, clamp nut with shear pin is connected with the anchor cable rig clutch end, export so that tube connector precession clamp nut by power, until the disconnected shear pin in top, so far anchor cable installation.Anchor cable passes through drag reduction packing ring, iron washer two and iron washer one, and allows the pressure member that the anchor cable pallet is pressed to the country rock surface, realizes prestressing force.When anchor cable is stressed when acquiring a certain degree, allows and press member to produce the deformation meeting jointly to be out of shape with country rock, to discharge a part of pressure from surrounding rock, improve supporting effect.
The relevant technologies content of not addressing in the aforesaid way is taked or is used for reference prior art and can realize.
Need to prove, those skilled in the art can also make such or such easy variation pattern under the instruction of this manual, such as equivalent way, or obvious mode of texturing.Above-mentioned variation pattern all should be within protection domain of the present utility model.
Claims (6)
1. one kind allows pressure exempt from the stretch-draw prestressing force anchor cable, it is characterized in that comprising steel strand, anchor cable pallet, one section tube connector and clamp nut, above-mentioned tube connector is provided with the external thread section that cooperates for clamp nut, steel strand and tube connector link together, tube connector passes the anchor cable pallet, tube connector is connected on the anchor cable pallet by clamp nut in the anchor cable pallet outside.
2. a kind of pressure that allows according to claim 1 is exempted from the stretch-draw prestressing force anchor cable, it is characterized in that: between above-mentioned clamp nut and anchor cable pallet, be provided with and allow the pressure member, allow press between member and the anchor cable pallet be provided with iron washer one, be disposed with iron washer two and drag reduction packing ring between member and the clamp nut allowing press.
3. a kind of pressure that allows according to claim 1 is exempted from the stretch-draw prestressing force anchor cable, and it is characterized in that: above-mentioned clamp nut is provided with shear pin.
4. a kind of pressure that allows according to claim 1 is exempted from the stretch-draw prestressing force anchor cable, and it is characterized in that: above-mentioned steel strand are fixedly connected in the inner tube of tube connector.
5. a kind of pressure that allows according to claim 1 is exempted from the stretch-draw prestressing force anchor cable, and it is characterized in that: the length of above-mentioned external thread section is 120mm～150mm.
6. a kind of pressure that allows according to claim 1 is exempted from the stretch-draw prestressing force anchor cable, and it is characterized in that: above-mentioned tube connector is seamless steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220574905 CN202900296U (en) | 2012-11-05 | 2012-11-05 | Yielding tension-free prestressed anchor cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220574905 CN202900296U (en) | 2012-11-05 | 2012-11-05 | Yielding tension-free prestressed anchor cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202900296U true CN202900296U (en) | 2013-04-24 |
Family
ID=48120979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220574905 Expired - Fee Related CN202900296U (en) | 2012-11-05 | 2012-11-05 | Yielding tension-free prestressed anchor cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202900296U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819004A (en) * | 2015-04-24 | 2015-08-05 | 山西中煤四达机电设备有限公司 | Constant-resistance conceding prestressed steel stranded wire anchor cable |
-
2012
- 2012-11-05 CN CN 201220574905 patent/CN202900296U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819004A (en) * | 2015-04-24 | 2015-08-05 | 山西中煤四达机电设备有限公司 | Constant-resistance conceding prestressed steel stranded wire anchor cable |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205117377U (en) | Gob entry driving fender is consolidated and is used slip casting anchor rope | |
| CN104295308A (en) | Anchor rod drawing device and method | |
| CN204716870U (en) | A kind of wire tensioner | |
| CN207296572U (en) | A kind of built-in steel tube tower thread drawing mechanism | |
| CN205387706U (en) | Rotatory earth anchor of simple and easy type | |
| CN202611109U (en) | Steel strand connector | |
| CN202900296U (en) | Yielding tension-free prestressed anchor cable | |
| CN202520346U (en) | Novel high-intensity constant-resistance large-deformation anchor rod | |
| CN201599046U (en) | Tension anchor rod | |
| CN203865739U (en) | Automatic coiling device recovering communication cables for underground coal mine working face | |
| CN204135989U (en) | A kind of Quick pin remover of detaching hydraulic support | |
| CN202595738U (en) | Combined anchor rod | |
| CN103046941A (en) | Anchor cable yield device capable of realizing working load visualization | |
| CN203347322U (en) | Electric pole stay wire clamping apparatus | |
| CN203281765U (en) | Special tool for stay wire making | |
| CN103276733B (en) | A kind of tension and compression dispersion-type prestressed anchorage cable | |
| CN205277436U (en) | A device that is used for shield structure section of jurisdiction vertically taut | |
| CN204200256U (en) | Extrude embedded flexible roof bolt | |
| CN203756202U (en) | Rapid feeder for vertical anchor cable | |
| CN203626870U (en) | Squirrel cage anchor cable for mine | |
| CN203403413U (en) | Tension and compression dispersing-type pre-stressed anchor cable | |
| CN103696789A (en) | Squirrel cage type anchor cable for mine | |
| CN203257439U (en) | Anchor rope total-length anchoring device used for coal mine soft-rock roadway | |
| CN207420603U (en) | A kind of pressure-relieving achor bar | |
| CN202704912U (en) | Rope guide device applied to well drilling winch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20141105 |
|
| EXPY | Termination of patent right or utility model |