CN205330701U - Extensible energy -absorbing anchor - Google Patents
Extensible energy -absorbing anchor Download PDFInfo
- Publication number
- CN205330701U CN205330701U CN201521045419.5U CN201521045419U CN205330701U CN 205330701 U CN205330701 U CN 205330701U CN 201521045419 U CN201521045419 U CN 201521045419U CN 205330701 U CN205330701 U CN 205330701U
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- wavy
- nut
- sleeve
- anchor
- rod body
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Abstract
The utility model discloses an extensible energy -absorbing anchor. It includes the stock body of rod, pretension anticreep cover, wavy sleeve, convex nut, gasket, anti -skidding cover, tray and nut, wavy sleeve suit on the stock body of rod, the stock body of rod and wavy telescopic junction are located to pretension anticreep cover to respectively with the stock body of rod and wavy sleeve spiro union, the stock body of rod is located the one end and convex nut spiro union of wavy sleeve, and the other end of convex nut is equipped with gasket, antiskid cover, the stock body of rod, and wavy telescopic end is equipped with tray and nut. The utility model discloses can provide great harmonious deflection and invariable working resistance for strutting of soft rock and deep country rock to realize energy -absorbing and extension many times, the utility model discloses doing the time spent receiving rock burst, acting on in the time of wavy sleeve and pretension anticreep cover, produce big extension in the twinkling of an eye and overall structure does not destroy, can play the effect of shocking resistance.
Description
Technical field:
This utility model relates to a kind of anchor pole, particularly to a kind of extensible energy-absorbing anchor for soft rock and deep wall rock supporting。
Background technology:
Along with the increasing of energy-output ratio and mining rate, most of mines both domestic and external have been enter into deep mining, and then the phenomenon such as high-ground stress, aximal deformation value starts to be presented in face of the supporting of deep engineering rock mass, becomes the subject matter affecting mine safety production。Existing major part common bolt elongation percentage is not enough, extend after intensity reduce and can not shock resistance, high-ground stress and the large deformation feature of deep engineering rock mass are not adapted to, based on this, occur in that and many be not only provided that enough anchor force but also adapt to the energy-absorption anchor rod of moderate finite deformation。
The energy-absorption anchor rod that domestic and international present stage has occurred has a lot, wherein external D anchor pole having the Garford anchor pole of Australia, Canadian Yield-Lok anchor pole, Austrian Roofex anchor pole, the novel energy-absorption anchor rod of Sweden and Norway etc.。Domestic currently also occur in that some energy-absorption anchor rods, mainly had: CTC-yield anchor pole, CRLD anchor pole, novel high-strength prestressing force pressure-relieving achor bar, moving to press soft rock tunnel pressure-relieving achor bar, novel Extendable anchor rod。They are structurally and functionally suffering from respective feature。The D anchor rod body simple in construction but reasonable stress of Norway, also some is relatively special on material, and energy-absorption anchor rod bar structure as novel in Sweden is simple, but rod body material is special, has energy-absorbing yielding property energy preferably。The structure and material of Canadian Yield-Lok anchor pole surrender device is all very novel, stable work in work。Although the design of Austrian Roofex anchor structure is simple, but yield behavior is better。The CRLD anchor pole surrender device of China adopts tubular structure, it is achieved that bigger yield displacement ability。But above-mentioned energy-absorption anchor rod is that material is special a bit, some is structure complicated processing difficulty, and therefore processing cost is significantly high。
Utility model content:
For heavily stressed, the technical problem that aximal deformation value engineering rock mass supporting effect is bad that solve that deep occurs by existing anchor pole, this utility model provides a kind of extensible energy-absorbing anchor being capable of country rock and anchor pole compatible deformation。
This utility model solves above-mentioned technical problem and be the technical scheme is that a kind of extensible energy-absorbing anchor, including anchor rod body, pretension Anti-slip cover, wavy sleeve, male nut, pad, Anti-slip cover, pallet and nut, described wavy sleeve set is on anchor rod body, pretension Anti-slip cover is located at the junction of anchor rod body and wavy sleeve, and be spirally connected with anchor rod body and wavy sleeve respectively, described anchor rod body is positioned at one end of wavy sleeve and is spirally connected with male nut, the other end of male nut is provided with pad, Anti-slip cover, the termination of wavy sleeve is provided with pallet and nut。
In above-mentioned extensible energy-absorbing anchor, described male nut is female thread structure, and its outer surface is in protruding circular arc, and protruding arc section matches with the arc section in wavy sleeve。
In above-mentioned extensible energy-absorbing anchor, described Anti-slip cover is female thread structure, and its length is more than the twice of male nut length。
In above-mentioned extensible energy-absorbing anchor, described pad is that external diameter is more than the steel plate washer with male nut contact position external diameter。
In above-mentioned extensible energy-absorbing anchor, the two ends of described wavy sleeve are external thread structure, and what one end external diameter was big is used for installing pallet and nut, and the external screw thread place symmetry that one end external diameter is little has two seams, for pre-calking。
The anchoring principle of extensible energy-absorbing: coordinated with common bolt by extensible energy-absorbing anchor, during country rock is carried out supporting, when surrouding rock stress high concentration starts to deform, anchor pole self under tension effect, anchor pole is that the frictional force produced between the male portion by the body of rod and wavy sleeve provides supporting power；When anchor rod body tension is less than the yield strength of wavy sleeve, this anchor pole maintains the original state and can ensure stablizing of supporting country rock；When anchor rod body tension is equal to or more than the yield strength of wavy sleeve, the crest section of the wavy sleeve contacted with male portion starts to be deformed, the sleeve diameter of contact portion increases, in the process increased, namely above-mentioned extensible energy-absorbing anchor starts energy-absorbing, and create a small amount of relative displacement, now absorb part surrouding rock deformation energy, made the deformation of country rock obtain alleviation；If the deformation energy that country rock gathers is still very big, then continue deformation with the sleeve of anchor pole male portion contact position, when sleeve internal diameter herein increases to suitable with the diameter of convex, this anchor pole moment can produce certain relative displacement, so that surrouding rock deformation can be released, and then country rock tends towards stability, namely complete an endergonic process；Energy-absorbing next time is carried out when country rock high stress concentrations again。
Of the present utility model have the technical effect that 1) this utility model combination by wavy sleeve, pretension Anti-slip cover and body of rod male portion, being installed on common bolt just can provide bigger compatible deformation amount to realize energy-absorbing, and comparatively constant working resistance can be provided, thus control the aximal deformation value of soft rock and deep wall rock, impact engineering project disasters such as suppressing；2) this utility model can by adjusting apparatus scantling can with arbitrary diameter common bolt carry out with the use of；3) this utility model processing cost is relatively low, reduces the difficulty of energy absorption device component processing so that it is mass production lower in cost。
Accompanying drawing illustrates:
Fig. 1 structural representation of the present utility model。
Fig. 2 is sectional view of the present utility model。
Fig. 3 is the structural representation of wavy sleeve in this utility model。
Fig. 4 is the anchor rod body structural representation in this utility model。
Explanation in accompanying drawing:
1 anchor rod body, 2 pretension Anti-slip covers, 3 wavy sleeves, 4 pallets, 5 nuts, 6 wavy sleeve crest sections, 7 wavy sleeve trough sections, 8 pre-calkings, 9 male nut, 10 pads, 11 Anti-slip covers, 12 anchor rod body thread segments
Detailed description of the invention:
Below in conjunction with accompanying drawing, this utility model is described in further detail。
As shown in Figure 1 and Figure 2, this utility model includes anchor rod body 1, pretension Anti-slip cover 2, wavy sleeve 3, male nut 9, pad 10, Anti-slip cover 11, pallet 4 and nut 5, described wavy set jacket casing 3 is loaded on anchor rod body 1, pretension Anti-slip cover 2 is located at the junction of anchor rod body 1 and wavy sleeve 3, and be spirally connected with anchor rod body 1 and wavy sleeve 3 respectively, described anchor rod body 1 is positioned at one end of wavy sleeve 3 and is spirally connected with male nut 9, the other end of male nut 9 is provided with pad 10, Anti-slip cover 11, and the termination of wavy sleeve is provided with pallet and nut。
As it is shown on figure 3, Fig. 3 is the structural representation of wavy sleeve in this utility model。Wavy sleeve 3 is provided with wavy sleeve crest section 6, wavy sleeve trough section 7, pre-calking 8。
This utility model installation step: as in figure 2 it is shown, first, male nut 9, pad 10, Anti-slip cover 11 are sequentially arranged at appropriate location on the thread segment 12 of anchor rod body 1；The body of rod with convex structure is loaded wavy sleeve 3；Secondly, pretension Anti-slip cover 2 is being twisted the solid external screw thread place at pre-calking 8 place；Then, pallet 4 and nut 5 are installed as shown in drawings successively。Then the assembling of anchor pole is namely completed。
Installation process of the present utility model: first specifying position by rig drilling；Secondly, in hole, resin explosive roll is put into；Then, by the anchor pole load hole that assembles；It follows that rotate anchor pole to blend resin explosive roll；Finally, pallet and nut fastening anchor pole are installed。
Operation principle of the present utility model: in the process of surrouding rock deformation, anchor rod body 1 and wavy sleeve 3 produce relative sliding。Owing to the contact surface of wavy sleeve 3 inwall Yu the male nut 9 of anchor rod body is wavy, then wavy sleeve 3 inwall can produce plastic deformation when limiting male nut 9 relative sliding, the strain energy now gathered in country rock body is absorbed, thus having coordinated the deformation of country rock。Owing to the inwall of wavy sleeve 3 is wavy, so one waveform of relative sliding is a cycle。Lost efficacy additionally, twist solid the disengaging from sleeve when the pretension Anti-slip cover 2 of the wavy pre-calking side of sleeve 3 is possible to prevent this utility model to be subject to impacting, thus having shock proof effect。
Claims (5)
1. an extensible energy-absorbing anchor, it is characterized in that: include anchor rod body, pretension Anti-slip cover, wavy sleeve, male nut, pad, Anti-slip cover, pallet and nut, described wavy sleeve set is on anchor rod body, pretension Anti-slip cover is located at the junction of anchor rod body and wavy sleeve, and be spirally connected with anchor rod body and wavy sleeve respectively, described anchor rod body is positioned at one end of wavy sleeve and is spirally connected with male nut, the other end of male nut is provided with pad, Anti-slip cover, and the termination of wavy sleeve is provided with pallet and nut。
2. extensible energy-absorbing anchor according to claim 1, it is characterised in that: described male nut is female thread structure, and its outer surface is in protruding circular arc, and protruding arc section matches with the arc section in wavy sleeve。
3. extensible energy-absorbing anchor according to claim 1, it is characterised in that: described Anti-slip cover is female thread structure, and is spirally connected with anchor rod body, and its length is more than the twice of male nut length。
4. extensible energy-absorbing anchor according to claim 1, it is characterised in that: described pad is that external diameter is more than the steel plate washer with male nut contact position external diameter。
5. extensible energy-absorbing anchor according to claim 1, it is characterized in that: the two ends of described wavy sleeve are external thread structure, what one end external diameter was big is used for installing pallet and nut, and the external screw thread place symmetry that one end external diameter is little has two seams, for pre-calking。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521045419.5U CN205330701U (en) | 2015-12-16 | 2015-12-16 | Extensible energy -absorbing anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521045419.5U CN205330701U (en) | 2015-12-16 | 2015-12-16 | Extensible energy -absorbing anchor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205330701U true CN205330701U (en) | 2016-06-22 |
Family
ID=56207743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521045419.5U Expired - Fee Related CN205330701U (en) | 2015-12-16 | 2015-12-16 | Extensible energy -absorbing anchor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205330701U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422151A (en) * | 2015-12-16 | 2016-03-23 | 湖南科技大学 | Extendable energy absorbing type anchoring device |
| CN107218072A (en) * | 2017-07-10 | 2017-09-29 | 中国矿业大学 | A kind of extrusion friction type constant-resistance allows pressure large deformation anchor rod |
| CN108019234A (en) * | 2017-12-07 | 2018-05-11 | 杭州富阳鸿祥技术服务有限公司 | A kind of safe anchor pole of top expanded type |
| CN109931085A (en) * | 2019-04-16 | 2019-06-25 | 中国矿业大学 | A kind of steady resistance energy-absorbing glass fibre reinforced plastics rockbolts with application pretightning force function |
| CN110578542A (en) * | 2019-09-19 | 2019-12-17 | 中国矿业大学 | High-stress rock burst roadway anchor rod, design method and working method |
| CN110905571A (en) * | 2019-12-18 | 2020-03-24 | 辽宁工程技术大学 | Diameter-expanding type energy absorption device for straight-line pipe |
-
2015
- 2015-12-16 CN CN201521045419.5U patent/CN205330701U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422151A (en) * | 2015-12-16 | 2016-03-23 | 湖南科技大学 | Extendable energy absorbing type anchoring device |
| CN107218072A (en) * | 2017-07-10 | 2017-09-29 | 中国矿业大学 | A kind of extrusion friction type constant-resistance allows pressure large deformation anchor rod |
| CN108019234A (en) * | 2017-12-07 | 2018-05-11 | 杭州富阳鸿祥技术服务有限公司 | A kind of safe anchor pole of top expanded type |
| CN109931085A (en) * | 2019-04-16 | 2019-06-25 | 中国矿业大学 | A kind of steady resistance energy-absorbing glass fibre reinforced plastics rockbolts with application pretightning force function |
| CN110578542A (en) * | 2019-09-19 | 2019-12-17 | 中国矿业大学 | High-stress rock burst roadway anchor rod, design method and working method |
| CN110578542B (en) * | 2019-09-19 | 2020-09-08 | 中国矿业大学 | High-stress rock burst roadway anchor rod, design method and working method |
| CN110905571A (en) * | 2019-12-18 | 2020-03-24 | 辽宁工程技术大学 | Diameter-expanding type energy absorption device for straight-line pipe |
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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: 20160622 Termination date: 20191216 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |