CN203296794U - Yielding extensible fiber reinforced plastic anchor rod - Google Patents
Yielding extensible fiber reinforced plastic anchor rod Download PDFInfo
- Publication number
- CN203296794U CN203296794U CN2013202143462U CN201320214346U CN203296794U CN 203296794 U CN203296794 U CN 203296794U CN 2013202143462 U CN2013202143462 U CN 2013202143462U CN 201320214346 U CN201320214346 U CN 201320214346U CN 203296794 U CN203296794 U CN 203296794U
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- Prior art keywords
- fiber reinforced
- reinforced plastic
- anchor rod
- yielding
- roadway
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Abstract
The utility model provides a yielding extensible fiber reinforced plastic anchor rod, which relates to the technical field of support engineering. The yielding extensible fiber reinforced plastic anchor rod comprises a metal casing, a spherical cap nut, a yielding sleeve, a supporting plate and a fiber reinforced plastic rod body, wherein the yielding sleeve and the spherical cap nut form a yielding device. The yielding extensible fiber reinforced plastic anchor rod can be used for not only relieving the phenomenon of destruction of the anchor rod under the pressure of surrounding rock of a roadway and serious deformation of the roadway caused by the fact that the stress exceeds the working load in the initial stage that the roadway is dug out, but also ensuring the constant-resistance working state of the anchor rod after the roadway pressure and deformation destruction tend to be stable all the time in addition to all the advantages of other fiber reinforced plastic anchor rods, so that the support effect of the anchor rod and the safety of the roadway can be greatly improved; the defect that the fiber reinforced plastic anchor rod is easy to break when being applied underground is overcome; the fiber reinforced plastic anchor rod is applied to anchor engineering of all kinds of mines, traffic and water conservancy tunnels, military industries, civil engineering and the like; and the advantages of cuttability and low cost can be more fully exerted particularly when the fiber reinforced plastic anchor rod is used in cutting openings in the two sides of the roadway and a coal face.
Description
Technical field
The utility model relates to a kind of allowing and presses extensible glass fibre reinforced plastics rockbolts, relates to the support engineering technical field, particularly a kind of in all kinds of mines, the glass fibre reinforced plastics rockbolts that uses of the anchoring engineerings such as traffic and water conservancy tunnel, military project, civil engineering.
Background technology
If stope drift active workings two are helped not supporting or adopted low wood bolt or the bamboo anchoring-bolt supporting of intensity, usually wall caving is serious, has a strong impact on mine safety.While while using in addition the reinforced anchor bolt supporting, also having the coal-winning machine coal cutting, easily produce the hidden danger that spark causes coal dust gas explosion.
Along with the development of mine bolt support technology, anchor pole increases gradually at the consumption of down-hole.In some cases, as at coal road two, help with work plane open-off cut coal side in, but require the body of rod of the anchor pole that uses to have cutting, the existing anchor pole that cuts mainly contains wood bolt and bamboo anchoring-bolt, it is low and unstable that they have anchored force, the shortcomings such as easy corrosion and damage.
Stope drift active workings are owing to affected by the back production dynamic pressure, and most stope drift active workings coals help to have irresistible large deformation feature, due to the lower glass fibre reinforced plastics rockbolts of existing use elongation per unit length, can not adapt to the distortion of coal side, thereby cause supporting to be lost efficacy.
Summary of the invention
The purpose of this utility model is to provide to allow presses extensible glass fibre reinforced plastics rockbolts.
A kind of allowing pressed extensible glass fibre reinforced plastics rockbolts, comprises metal sleeve, spherical crown nut, allows gland cylinder, supporting plate and the glass fiber reinforced plastic body of rod, wherein, allows gland cylinder and spherical crown nut form to allow pressure device.
Described metal sleeve is provided with impression, and the employing of the connected mode of metal sleeve and the glass fiber reinforced plastic body of rod one section or several sections grooves with tapering, and metal sleeve is pressed in the glass fiber reinforced plastic body of rod, forms the mutual interlocking of the two, makes the two form an integral body.The metal sleeve end 10cm section rolled thread of afterbody, the spherical crown nut with allow the gland cylinder join.
The periphery of stirring-head is left-handed structure.
Beneficial effect:
Adopt the extensible glass fibre reinforced plastics rockbolts of the utility model, used the metal anchors tail, improved the anti-shearing force of simple glass steel anchor rod anchor tail, reduced the number of times because of tunnel wall caving and then initiation roof fall.
Adopt the utility model allow and press extensible glass fibre reinforced plastics rockbolts, by by allowing the pressure device that allows that gland pipe and spherical crown nut form, release portion tunnel side section's pressure and the distortion thereof of control can be arranged, and then realize the adjustment of anchor pole load, especially in tunnel, excavate the initial stage, can effectively prevent or reduce anchor pole and occur because of the sharply increase of roadway surrounding rock pressure disrumpent feelings, realize the safety support in tunnel.
Adopt the utility model allow and press extensible glass fibre reinforced plastics rockbolts, can greatly improve the elongation per unit length of glass fibre reinforced plastics rockbolts, make its elongation per unit length with general anchor pole, avoided not causing the disrumpent feelings possibility of anchor pole because the glass fiber reinforced plastic body of rod has elongation per unit length, improved the roadway support quality.
After the tunnel coal helps pressure and distortion to discharge into stationary phase, roadway surrounding rock pressure and distortion increase very slowly, in this stage, allow pressure device still can guarantee that anchor pole load does not increase with the increase of coal side pressure after reaching peak load, work thereby make anchor pole can remain under the constant-resistance state.Allow pressure device can allow the very high carrying effect of anchor pole performance, can guarantee again glass fibre reinforced plastics rockbolts can be because of overload failure.
Because but this glass fibre reinforced plastics rockbolts has cutting, act on coal road two help with work plane open-off cut coal side in, coal-winning machine can directly cut, and does not affect normal coal mining speed, has improved production efficiency.
Due to what adopt, be glass fibre reinforced plastics rockbolts, can significantly save the supporting consumables cost economically.
The utility model compared to the prior art, it have safe and reliable, the anchor pole extensibility is high, load-carrying properties reach well that anchor tail shear strength is high, anchored force is large, corrosion-resistant, lightweight, the body of rod easily cuts, light easy to operate, the characteristics such as supporting effect good, cost is low.
The accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model.
In figure: 1. the glass fiber reinforced plastic body of rod; 2. metal sleeve; 3. supporting plate; 4. allow the gland cylinder; 5. spherical nut.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with specific embodiment and diagram, further set forth the utility model.
As shown in Figure 1, a kind of allowing pressed extensible glass fibre reinforced plastics rockbolts, comprises metal sleeve 2, spherical crown nut 5, allows gland cylinder 4, supporting plate 3 and the glass fiber reinforced plastic body of rod 1, wherein, allows gland cylinder 4 and spherical crown nut 5 form to allow pressure device.Described metal sleeve 2 is provided with impression, and the employing of the connected mode of metal sleeve 2 and the glass fiber reinforced plastic body of rod 1 one section or several sections grooves with tapering, and metal sleeve 2 is pressed in the glass fiber reinforced plastic body of rod 1, forms the mutual interlocking of the two, makes the two form an integral body.The metal sleeve 2 end 10cm section rolled threads of anchor pole afterbody, spherical crown nut 5 with allow gland cylinder 4 join.
During use, in order to realize better allowing pressure, the pretightning force while needing to reduce rockbolt installation, the reduction ratio of pretightning force is about 50%.Skyhook is by gland cylinder 4 between the supporting plate 3 of anchor pole and spherical crown nut 5.When spherical crown nut 5 acts on the power that allows on gland cylinder 4 and reaches the nominal operation load of anchor pole, spherical crown nut 5 makes to allow gland cylinder 4 produce expansion, internal diameter increases, thereby spherical crown nut 5 is drawn into gradually allow gland cylinder 4, the suffered load of the glass fiber reinforced plastic body of rod 1 of anchor pole no longer increases, and anchor pole is worked under constant service load.
Pressure while allowing gland cylinder 4 produce expansion and spherical crown nut 5 are drawn into and allow the length of gland pipe, and what namely prevent protection load that anchor pole is disrumpent feelings and anchor pole allows the pressure amount, can in design, adjust according to the actual conditions of supporting.
Above demonstration and described basic principle of the present utility model, principal character and advantage.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and manual, describes just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (2)
1. one kind allows and presses extensible glass fibre reinforced plastics rockbolts, it is characterized in that comprising metal sleeve, spherical crown nut, allows gland cylinder, supporting plate and the glass fiber reinforced plastic body of rod; Described metal sleeve is provided with impression, and the employing of the connected mode of metal sleeve and the glass fiber reinforced plastic body of rod one section or several sections grooves with tapering, and metal sleeve is pressed in the glass fiber reinforced plastic body of rod, forms the mutual interlocking of the two, makes the two form an integral body.
2. a kind of allowing according to claim 1 pressed extensible glass fibre reinforced plastics rockbolts, it is characterized in that the metal sleeve end 10cm section rolled thread of afterbody, the spherical crown nut with allow the gland cylinder join.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202143462U CN203296794U (en) | 2013-04-25 | 2013-04-25 | Yielding extensible fiber reinforced plastic anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202143462U CN203296794U (en) | 2013-04-25 | 2013-04-25 | Yielding extensible fiber reinforced plastic anchor rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203296794U true CN203296794U (en) | 2013-11-20 |
Family
ID=49572811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202143462U Expired - Fee Related CN203296794U (en) | 2013-04-25 | 2013-04-25 | Yielding extensible fiber reinforced plastic anchor rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203296794U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103924592A (en) * | 2014-04-18 | 2014-07-16 | 周同和 | Pressure type PHA anchor rod and construction method thereof |
| CN106401627A (en) * | 2016-09-23 | 2017-02-15 | 山东科技大学 | Metal anchor rod with yielding function and using method thereof |
| CN108119175A (en) * | 2016-11-29 | 2018-06-05 | 辽宁工程技术大学 | A kind of resigning buffering energy-absorbing impact preventing anchor rod |
| CN109026103A (en) * | 2018-07-26 | 2018-12-18 | 辽宁工程技术大学 | A kind of expanding extrusion friction anchor shaft anchor cable structure |
| CN110630305A (en) * | 2019-11-05 | 2019-12-31 | 兰州交通大学 | Controllable pressure stock that lets in tunnel |
| CN111472825A (en) * | 2020-04-22 | 2020-07-31 | 辽宁工程技术大学 | Automatic anchoring pre-tightening energy-absorbing anchor rod |
| CN114635731A (en) * | 2022-03-21 | 2022-06-17 | 中国矿业大学 | Coal mine underground glass fiber reinforced plastic large-deformation support anchor rod |
-
2013
- 2013-04-25 CN CN2013202143462U patent/CN203296794U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103924592A (en) * | 2014-04-18 | 2014-07-16 | 周同和 | Pressure type PHA anchor rod and construction method thereof |
| CN103924592B (en) * | 2014-04-18 | 2016-08-24 | 周同和 | A kind of pressure-type PHA anchor pole and construction method thereof |
| CN106401627A (en) * | 2016-09-23 | 2017-02-15 | 山东科技大学 | Metal anchor rod with yielding function and using method thereof |
| CN106401627B (en) * | 2016-09-23 | 2018-05-29 | 山东科技大学 | A kind of anchor metal and its application method allow with pressure |
| CN108119175A (en) * | 2016-11-29 | 2018-06-05 | 辽宁工程技术大学 | A kind of resigning buffering energy-absorbing impact preventing anchor rod |
| CN109026103A (en) * | 2018-07-26 | 2018-12-18 | 辽宁工程技术大学 | A kind of expanding extrusion friction anchor shaft anchor cable structure |
| CN110630305A (en) * | 2019-11-05 | 2019-12-31 | 兰州交通大学 | Controllable pressure stock that lets in tunnel |
| CN111472825A (en) * | 2020-04-22 | 2020-07-31 | 辽宁工程技术大学 | Automatic anchoring pre-tightening energy-absorbing anchor rod |
| CN111472825B (en) * | 2020-04-22 | 2021-12-28 | 辽宁工程技术大学 | Automatic anchoring pre-tightening energy-absorbing anchor rod |
| CN114635731A (en) * | 2022-03-21 | 2022-06-17 | 中国矿业大学 | Coal mine underground glass fiber reinforced plastic large-deformation support anchor rod |
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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: 20131120 Termination date: 20140425 |