CN2081884U - Improved telescopic anchor rod - Google Patents
Improved telescopic anchor rod Download PDFInfo
- Publication number
- CN2081884U CN2081884U CN 90219933 CN90219933U CN2081884U CN 2081884 U CN2081884 U CN 2081884U CN 90219933 CN90219933 CN 90219933 CN 90219933 U CN90219933 U CN 90219933U CN 2081884 U CN2081884 U CN 2081884U
- Authority
- CN
- China
- Prior art keywords
- anchor
- rod
- tail
- stretch
- anchor pole
- 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 - Lifetime
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 7
- 239000010959 steel Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 4
- 239000011435 rock Substances 0.000 claims abstract description 4
- 238000005516 engineering process Methods 0.000 claims description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 2
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 claims description 2
- 229910052717 sulfur Inorganic materials 0.000 claims description 2
- 239000011593 sulfur Substances 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 238000007669 thermal treatment Methods 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000004873 anchoring Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000011405 expansive cement Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Landscapes
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The utility model relates to an improved telescopic anchor rod used for supporting wall rocks in underground engineering. The improved telescopic anchor rod is mainly characterized in that a rod body (1), an anchor head (2) and an anchor tail (3) are made of round steel with the same format, the same material and large extensibility. The anchor tail (3) is a processing section via special heat treatment, the hardness and the strength of the anchor tail (3) is higher than that of other parts of the rod body, and thus the aim of stretching the rod body is obtained. Therefore, the improved telescopic anchor rod has the advantages of sample processing, high efficiency and low cost.
Description
The utility model proposes a kind of modified body of rod that in underground construction, is used for supporting country rock anchor pole that can stretch.
It is the utility model patent that the inventor proposed in 1987 that utility model patent numbers 87211250.0, name are called " the H type body of rod can stretch anchor pole ".In production practices in recent years, the major defect of finding it is that the body of rod and anchor tail are that the steel of two kinds of unlike materials, different size, different-diameter are welded.For this reason, its processing technology is simple and convenient not as modified, and efficient is lower, and the diameter of the anchor tail and the body of rod is inconsistent again, then influences the installation quality of anchoring agent.
At the weak point of above technology, task of the present utility model is that a kind of processing method of design is simpler, and efficient is higher, the modified body of rod that cost the is low again anchor pole that can stretch.
Task of the present utility model realizes by following scheme:
The concrete improvement of anchor tail processing technology is as follows:
The H type body of rod anchor pole that can stretch is by at one section round steel thicker than body of rod diameter of body of rod afterbody welding, causes the load of breaking that load is higher than the body of rod of breaking of anchor tail, thereby does not break the anchor tail when reaching the anchor pole tension but the purpose that is stretched at body of rod middle part.
The modified body of rod anchor pole that can stretch then is that the round steel afterbody of the body of rod is heat-treated, and the hardness of afterbody and intensity are improved and does not break the anchor tail when reaching the anchor pole tension but stretches at the body of rod.
Anchor pole after the improvement then makes the processing of the body of rod simpler, has improved working (machining) efficiency, has reduced processing cost, more helps installing the fast hard expansive cement anchoring agent of hollow powder stick shape simultaneously.
The Brief Description Of Drawings that the utility model is submitted to is as follows:
Fig. 1 is can the stretch installation drawing of anchor pole of the modified body of rod.Anchor pole is made up of the body of rod (1), anchor head (2), anchor tail (3), ring washer (4), pallet (5), nut (6), and (7) are the anchoring agent, and (8) are anchor holes.
Fig. 2 is can the stretch structure chart of anchor pole of the modified body of rod.The body of rod (1) is by same phosphorus content＜0.15% with anchor head (2) and anchor tail (3), phosphorous＜0.25%, sulfur-bearing＜0.25% and elongation per unit length δ
5＞30% round steel is made.Anchor head (2) is round steel to be pounded twist into anti-twisted shape after flat, runs off for preventing the anchoring agent, guarantees anchorage length, overlaps a ring washer (4) in the certain-length between anchor head (2) and the body of rod (1), and is weldingly fixed on the body of rod (1).Anchor tail (3) needs cutting thread, so that tighten with nut (6) tray (5) back, makes pallet (5) be close to country rock.
Fig. 3 is can the stretch structure chart of second kind of form of anchor rod body (1) of the modified body of rod, and the difference of it and Fig. 2 body of rod structure only is that ring washer (4) is welded on the end of anchor head (2).
Fig. 4 is can the stretch structure chart of anchor pole pallet (5) of the modified body of rod.
Claims (4)
1, a kind of modified body of rod that is applicable to underground engineering wall rock supporting anchor pole that can stretch, formed by the body of rod (1), anchor head (2), anchor tail (3), pallet (5) and nut (6), it is characterized in that the body of rod (1), anchor head (2) and anchor tail (3) be by same specification, identical material and elongation per unit length δ
5＞30% round steel is made, and anchor head (2) is anti-twisted shape, and the end of anchor tail (3) is shaped on screw thread.
2, the modified body of rod according to claim 1 anchor pole that can stretch is characterized in that anchor tail (3) is the processing sections through special thermal treatment technology.
3, according to claim 1, the 2 described modified bodies of rod anchor pole that can stretch, it is characterized in that ring washer (4) is welded on the end of anchor head (2).
4, according to claim 1, the 2 described modified bodies of rod anchor pole that can stretch, the material optimum value that it is characterized in that the body of rod (1) is by following data decimation: carbon containing＜0.15%, phosphorous＜0.25%, sulfur-bearing＜0.25%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90219933 CN2081884U (en) | 1990-11-13 | 1990-11-13 | Improved telescopic anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90219933 CN2081884U (en) | 1990-11-13 | 1990-11-13 | Improved telescopic anchor rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2081884U true CN2081884U (en) | 1991-07-31 |
Family
ID=4898570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90219933 Expired - Lifetime CN2081884U (en) | 1990-11-13 | 1990-11-13 | Improved telescopic anchor rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2081884U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102691513A (en) * | 2012-05-22 | 2012-09-26 | 山东科技大学 | High-strength metal pressure-yielding anchor rod with headed tail |
| CN102865088A (en) * | 2012-09-12 | 2013-01-09 | 山东科技大学 | Tension and compression coupling type high-strength and high-deformation anchor rod and method for using same |
| CN109477383A (en) * | 2016-07-12 | 2019-03-15 | Fci特拉华控股有限公司 | A kind of anticorrosive contracting anchor pole |
-
1990
- 1990-11-13 CN CN 90219933 patent/CN2081884U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102691513A (en) * | 2012-05-22 | 2012-09-26 | 山东科技大学 | High-strength metal pressure-yielding anchor rod with headed tail |
| CN102865088A (en) * | 2012-09-12 | 2013-01-09 | 山东科技大学 | Tension and compression coupling type high-strength and high-deformation anchor rod and method for using same |
| CN102865088B (en) * | 2012-09-12 | 2015-04-08 | 山东科技大学 | Tension and compression coupling type high-strength and high-deformation anchor rod and method for using same |
| CN109477383A (en) * | 2016-07-12 | 2019-03-15 | Fci特拉华控股有限公司 | A kind of anticorrosive contracting anchor pole |
| CN109477383B (en) * | 2016-07-12 | 2022-01-11 | Fci特拉华控股有限公司 | Corrosion-resistant retractable anchor rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |