CN201407061Y - Prestress quenched-and-tempered thread steel resin anchor rod - Google Patents
Prestress quenched-and-tempered thread steel resin anchor rod Download PDFInfo
- Publication number
- CN201407061Y CN201407061Y CN200920155583XU CN200920155583U CN201407061Y CN 201407061 Y CN201407061 Y CN 201407061Y CN 200920155583X U CN200920155583X U CN 200920155583XU CN 200920155583 U CN200920155583 U CN 200920155583U CN 201407061 Y CN201407061 Y CN 201407061Y
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- Prior art keywords
- anchor rod
- thread
- anchor
- thread steel
- tempered
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- Expired - Fee Related
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Abstract
The utility model discloses a prestress quenched-and-tempered thread steel resin anchor rod which comprises an anchor rod body and a tray, and fastening nuts are provided in mounting. The quenched-and-tempered thread steel resin anchor rod is characterized in that an anchor is used as a connection fastener, and a standard thread of 20 to 30 mm long is processed at one end of the anchor rod body. The utility model has the advantages as follows: the strength is high, thereby reducing the consumption of the thread steel for supporting and protecting the anchor rod; the processing, the installation and the application are convenient, the fracturing force of the rod body is higher and the supporting and protecting ability is greatly improved; and the safety and the reliability are high, so thatthe full-thread anchor rod can be replaced. The utility model is used for fracturing a loosened laneway of coal mine, the anchor rod is invalid when the side top falls, and is not required to be compensated but only remounted, and more saving and simplicity are obtained.
Description
Affiliated technical field
The utility model relates to the anchor pole that engineering anchorings such as a kind of mine working, tunnel or supporting are used, and particularly relates to the anchor pole that colliery tunnel support is used.
Background technology
At mine timbering, tunnel support, in the engineerings such as highway slope protection, pallet and anchor rod body end thread nut are used in traditional bolt support technology, during the anchor rod body machining screw, the body of rod will roll the garden and handle, this has certain destruction to lever strength, thread root has the stress concentration phenomenon, cause anchor rod body intensity inconsistent, and the thread root intensity of the body of rod is minimum, when the stressed increase of coal and rock distortion anchor pole, because the inhomogeneities of lever strength makes anchor rod body rupture at thread root easily, thereby bolt support was lost efficacy, roadway deformation, even cause serious accident.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art a kind of modified screw-thread steel resin anchor of prestressing force that improves support capacity, reduces support cost, safety and reliability is provided.
The technical solution of the utility model is such, comprises anchor rod body, pallet, is furnished with clamp nut during installation, it is characterized in that with ground tackle as connecting securing member; The long standard thread of described anchor rod body one end processing 20-30mm.
Described standard thread only uses when installing and detect, and duty does not stress, and has avoided the stressed phenomenon of rupture of thread root.If when wall caving taking place falling to push up, do not need the complement anchor pole, as long as reinstall ground tackle, save more, convenient, so overcome the deficiency of traditional anchor pole.
Described anchor rod body, pallet are through modifier treatment, and its tensile strength can improve more than 35%.Anchor rod body is the vertical muscle screw-thread steel of left-handed nothing, and an end is processed into the standard thread that usefulness is installed, and only need process the long screw thread of 20-30mm, can be equipped with nut, uses the special-purpose machinery of installing to install.Pallet is shapes such as W shape, M shape, circle, square or circle are square, specifically according to the construction needs.
Described ground tackle replaces nut, be commercially available standard component, preferentially select YTM series ground tackle for use, be the clamped-in style ground tackle, has reliable anchoring property, enough supporting capacity and good compliance, can give full play to the intensity of prestressed anchor, anchor pole has higher prestressing force can the active support country rock, and supporting effect is remarkable.
By above technical scheme as can be known, the utlity model has following beneficial effect: 1, intensity height.Make the regular screw threads hardness of steel improve 30-35% by hardening and tempering process, thus the screw-thread steel use amount can reduce bolt support the time.Use under identical geology matter condition, can increase array pitch 30-35%, help improving the circulation driving and singly advance, efficient is higher.2, easy to process.Need not the double thread steel and carry out special stripping rib, rolled thread, screw thread just uses when anchor pole is installed and check, the anchor pole duty does not stress, thereby when having avoided machining screw to the damage of stressed section of steel, make stressed section intensity of anchor pole identical, be equipped with YTM series of high efficiency rate strand tapered anchorage again, guaranteed that assembly can never occur from the phenomenon of ground tackle fracture down in working order.3, application is installed conveniently.By nut the ground tackle of anchor pole is carried out prefastening and install, easy and simple to handle, accurate, intermediate plate is stressed controlled, has improved operating efficiency greatly.4, the Fracture Force of the body of rod is bigger.Fracture Force can reach the 130%-135% of common body of rod Fracture Force, can be better fixing country rock, improve the globality of country rock, the distortion of prevention country rock, the input of anchor pole reaches the effect of anchor cable, support capacity is greatly improved.5, applied widely.It can be applicable in the coal mine roadway of bolt support and the tunnel at all and use, be the rare substitute products of common bolt.6, security reliability height.Pulling capacity when ground tackle is installed is more than 4 tons, otherwise ground tackle can't install, and guarantees that every anchor pole is effective, and first anchor-hold is more than 4 tons, and support capacity is stronger.If desired, use the stretch-draw jack tension, tensile force can reach more than 10 tons, and first anchor-hold is bigger, better effects if.7, can substitute full-thread bolt.Use in the broken soft tunnel of coal petrography, anchor pole lost efficacy when the generation wall caving was fallen to push up, and did not need the complement anchor pole, as long as reinstall anchor pole, more saved easier.
Description of drawings
Fig. 1 is a front view of the present utility model.
Fig. 2 is a right view of the present utility model.
Among the figure, 1. anchor rod body, 2. pallet, 3. ground tackle, 4. body of rod end thread.
The specific embodiment
As shown in Figure 1, 2, the utility model comprises anchor rod body 1, pallet 2, ground tackle 3, and pallet 2 relies on ground tackle 3 fastening.
Described anchor rod body, pallet are through modifier treatment, and its tensile strength can improve more than 35%.Anchor rod body is the qualified vertical muscle screw-thread steel of left-handed nothing, and an end is processed into the body of rod end thread 4 of the standard that usefulness is installed, and the longest screw thread that only need process 30mm can be equipped with nut, uses the special-purpose machinery of installing to install.Pallet is shapes such as W shape, M shape, circle, square or circle are square, specifically according to the construction needs.
Mounting process:
1, jewel hole: anchor pole is installed the eyelet diameter and should be complementary with the anchor bar body diameter, and eye is dark should be consistent with the anchor pole installation length;
2, cleaning eyelet: the coal petrography powder in the eyelet should be cleaned out before the skyhook, the resin glue and the body of rod are sent in the eyelet, start roof-bolter resin glue is fully stirred, resin glue is solidified.
3, after the affirmation resin glue solidified, the nut of backing off was loaded onto pallet and ground tackle, starts roof bolting machine and tightens nut, with nut intermediate plate is headed into anchor ring, and the steel spring of intermediate plate does not expose, and the nut fastening force is more than the 320n.m.
4, check that installation quality is qualified after, take off nut and roof bolting machine, install and finish.
Claims (1)
1, the modified screw-thread steel resin anchor of a kind of prestressing force comprises anchor rod body, pallet, it is characterized in that with ground tackle as connecting securing member; The long standard thread of described anchor rod body one end processing 20-30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920155583XU CN201407061Y (en) | 2009-05-22 | 2009-05-22 | Prestress quenched-and-tempered thread steel resin anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920155583XU CN201407061Y (en) | 2009-05-22 | 2009-05-22 | Prestress quenched-and-tempered thread steel resin anchor rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201407061Y true CN201407061Y (en) | 2010-02-17 |
Family
ID=41677994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920155583XU Expired - Fee Related CN201407061Y (en) | 2009-05-22 | 2009-05-22 | Prestress quenched-and-tempered thread steel resin anchor rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201407061Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108547291A (en) * | 2018-07-18 | 2018-09-18 | 吉林省交通科学研究所 | A kind of herring-bone form basalt fibre anchor system and its anchoring process |
-
2009
- 2009-05-22 CN CN200920155583XU patent/CN201407061Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108547291A (en) * | 2018-07-18 | 2018-09-18 | 吉林省交通科学研究所 | A kind of herring-bone form basalt fibre anchor system and its anchoring process |
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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: 20100217 Termination date: 20100522 |