CN201554479U - Mining anchor rod - Google Patents
Mining anchor rod Download PDFInfo
- Publication number
- CN201554479U CN201554479U CN2009202507689U CN200920250768U CN201554479U CN 201554479 U CN201554479 U CN 201554479U CN 2009202507689 U CN2009202507689 U CN 2009202507689U CN 200920250768 U CN200920250768 U CN 200920250768U CN 201554479 U CN201554479 U CN 201554479U
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- CN
- China
- Prior art keywords
- rod
- anchor
- hole
- anchor pole
- tray
- 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
A mining anchor rod belongs to the technical field of geotechnical engineering anchoring and timbering, and comprises a rod body, a tray, an anchor plate and a clamping piece, wherein the tray is sleeved on the rod body. The anchor plate is sleeved on the rod body and contacts with the tray, a hole is arranged at the center of the anchor plate, the clamping piece is placed inside the hole, the rod body is threaded steel without longitudinal ribs, an arc-shaped projection is arranged at the center of the tray, the size of the arc-shaped projection matches with that of the bottom end of the anchor plate, the hole is a conical hole, and the clamping piece is a three-piece type clamping piece. The mining anchor rod has the advantages of increasing timbering safety factors, simplifying production and installation process, reducing timbering cost, increasing efficiency and broadening application range.
Description
Technical field
The utility model relates to mining anchor pole ground tackle, belongs to geotechnical engineering anchoring support technical field.
Background technology
Coal mine support plays crucial effects to the safety in production in colliery, existing anchor pole is to body of rod end machining screw, the mode that screws with nut realizes the anchoring to the rock stratum again, following problem often appears when reality is used: 1, body of rod end machining screw, cause body of rod end cross-sectional area to reduce, the anchor pole supporting capacity descends, and thread root exists stress to concentrate when stressed, the phenomenon of anchor pole root fracture often occurs, have serious potential safety hazard; 2, be subjected to the influence of screw thread processing length and crudy, existing anchor pole often occurs installing not in place when construction, and nut and anchor pole fit quality are poor, and construction is brought inconvenience; 3, when carrying out the sidewall supporting, sidewall can cause anchoring to lose efficacy because extruding force the rock stratum occurs and comes off, existing anchor pole is subjected to the influence of reach, can only scrap processing, and unique solution is near invalid position, the complement anchor pole carries out anchoring again, and support cost increases.
Summary of the invention
The purpose of this utility model is to overcome problems of the prior art, and mining anchor pole ground tackle is provided.
Technical solutions of the utility model are as follows: mining anchor pole ground tackle comprises the body of rod and the pallet that is enclosed within on the body of rod, also comprises anchor slab and intermediate plate, and anchor slab is enclosed within on the body of rod and pallet contacts, and the center of anchor slab is provided with the hole, and intermediate plate is positioned in the hole.
The described body of rod is not for there being vertical rib screw-thread steel.
The center of described pallet is provided with arc convex, and the size of the size of this arc convex and anchor slab bottom is complementary.
Described hole is a bellmouth.
Described intermediate plate is the three-chip type intermediate plate.
The beneficial effects of the utility model are:
1, security reliability height adopts the anchorage style of clip type to substitute the nut anchorage style, uses specialized apparatus, the prestressing force that mining anchor pole is installed can reach the 5-6 ton, and the anchor pole prestressed has improved greatly, and can control, support capacity is stronger, has guaranteed the validity of every anchor pole;
2, easy to process, need not steel are shelled rib, rolled thread processing, thereby avoided damage to the body of rod, as long as the model by mining anchor pole is equipped with the corresponding body of rod again, because machining screw on the body of rod has not guaranteed that assembly can never appear at the phenomenon of thread root fracture in working order down;
3, application is installed conveniently, easy and simple to handle, accurate by the special equipment skyhook, the whole erection process can be finished about 1 minute, had improved operating efficiency greatly;
4, solved the problem that lost efficacy and repeat to install, adopted the anchorage style of clip type,,, saved man-hour and material as long as the ground tackle on the inefficacy anchor pole is reinstalled when the tunnel takes place not need the complement anchor pole when wall caving is fallen to push up, economical and practical;
5, applied widely, it can be used in all are applicable to the tunnel of bolt support.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the vertical view of intermediate plate in the utility model.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described further.
As shown in Figure 1 and Figure 2, the utility model comprises the body of rod 1 and the pallet 2 that is enclosed within on the body of rod 1, also comprises anchor slab 3 and intermediate plate 4, and anchor slab 3 is enclosed within on the body of rod 1 and pallet 2 contacts, and the center of anchor slab 3 is provided with hole 5, and intermediate plate 4 is positioned in the hole 5.
The described body of rod 1 is not for there being vertical rib screw-thread steel.
The center of described pallet 2 is provided with arc convex 6, and the size of the size of this arc convex 6 and anchor slab 3 bottoms is complementary.
Described hole 5 is a bellmouth.
Described intermediate plate 4 is the three-chip type intermediate plate.
The mounting process of this utility model is as follows:
1, anchor pole installation eyelet diameter should be complementary with the anchor rod body diameter, and hole depth should be shorter than anchor pole;
2, the rock dust in the eyelet is cleaned out, resin glue is installed, connect roof-bolter at anchor rod body one end, the resin glue and the body of rod are sent in the eyelet, start roof-bolter resin glue is fully stirred, mixing time should meet the resin anchoring agent requirement, guarantees to finish to stir before the resin anchoring agent gel;
3, after the affirmation resin glue solidifies, tray, anchor slab and intermediate plate successively, with special connector with the stretch-draw jack be installed in will the anchor pole of stretch-draw on, then to jack for hydraulic oil, the pressure of hydraulic oil should be greater than 18Mpa, and the prestressed of anchor pole should be greater than 30kN;
4, after the qualified affirmation stretch-draw of inspection installation quality finishes, stop to take off jack and connector, install and finish to stretch-draw jack fuel feeding;
5, cause anchor pole to lose efficacy if fall the top, only need pallet, anchor slab and intermediate plate are continued follow-up to the rock stratum direction, install and carry out the operations in 3,4 steps again behind the connector and get final product because of wall caving.
The above, it only is preferred embodiment of the present utility model, be not that the technical solution of the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of the technical solution of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (5)
1. mining anchor pole ground tackle comprises the body of rod (1) and is enclosed within pallet (2) on the body of rod (1), it is characterized in that, also comprise anchor slab (3) and intermediate plate (4), anchor slab (3) is enclosed within on the body of rod (1), and pallet (2) contacts, the center of anchor slab (3) is provided with hole (5), and intermediate plate (4) is positioned in the hole (5).
2. anchor pole ground tackle according to claim 1 is characterized in that, the described body of rod (1) is not for there being vertical rib screw-thread steel.
3. anchor pole ground tackle according to claim 1 is characterized in that, the center of described pallet (2) is provided with arc convex (6), and the size of size of this arc convex (6) and anchor slab (3) bottom is complementary.
4. anchor pole ground tackle according to claim 1 is characterized in that, described hole (5) are bellmouth.
5. anchor pole ground tackle according to claim 1 is characterized in that, described intermediate plate (4) is the three-chip type intermediate plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202507689U CN201554479U (en) | 2009-11-24 | 2009-11-24 | Mining anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202507689U CN201554479U (en) | 2009-11-24 | 2009-11-24 | Mining anchor rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201554479U true CN201554479U (en) | 2010-08-18 |
Family
ID=42614161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202507689U Expired - Fee Related CN201554479U (en) | 2009-11-24 | 2009-11-24 | Mining anchor rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201554479U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244160A (en) * | 2013-05-20 | 2013-08-14 | 河北联合大学 | Detachable reused single-pore clamping piece type anchor rope anchorage device |
| CN107059961A (en) * | 2017-06-21 | 2017-08-18 | 浙江求是工程检测有限公司 | A kind of static load of pile foundation device |
| CN107701214A (en) * | 2017-11-24 | 2018-02-16 | 河南理工大学 | A kind of anti-dropout pressure-release anchor cable lock device that multiple pretension can be achieved |
-
2009
- 2009-11-24 CN CN2009202507689U patent/CN201554479U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244160A (en) * | 2013-05-20 | 2013-08-14 | 河北联合大学 | Detachable reused single-pore clamping piece type anchor rope anchorage device |
| CN107059961A (en) * | 2017-06-21 | 2017-08-18 | 浙江求是工程检测有限公司 | A kind of static load of pile foundation device |
| CN107701214A (en) * | 2017-11-24 | 2018-02-16 | 河南理工大学 | A kind of anti-dropout pressure-release anchor cable lock device that multiple pretension can be achieved |
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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: 20100818 Termination date: 20181124 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |