CN204312106U - The fastening lockset of anchor pole - Google Patents
The fastening lockset of anchor pole Download PDFInfo
- Publication number
- CN204312106U CN204312106U CN201420769931.3U CN201420769931U CN204312106U CN 204312106 U CN204312106 U CN 204312106U CN 201420769931 U CN201420769931 U CN 201420769931U CN 204312106 U CN204312106 U CN 204312106U
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- Prior art keywords
- anchor
- anchor pole
- lockset
- intermediate plate
- ring
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Abstract
The utility model discloses the fastening lockset of a kind of anchor pole, comprise anchor ring (1) and intermediate plate (2), anchor ring is loop configuration, and the through hole in the middle of it is bellmouth (11); Intermediate plate is set to multi-disc, and taper fit, the inwall radian size of its outer wall radian size and bellmouth coordinate with the outside dimension of anchor pole (5), and intermediate plate is arranged between the bellmouth inwall of anchor ring and anchor rod body.The fastening lockset of this anchor pole is applicable to the support pattern that plurality of specifications bolt pretension installs reinforced roadway country rock, after stirring Anchor Agent, directly anchor rod pallet board and anchor pole lockset can be pushed into country rock surface along anchor pole, can jumbolter be removed after Anchor Agent solidifies, while protection top board, realize Fast Installation; Can avoid, because human factor causes anchor pole torsional forces not, turn round bad anchor pole because torsional forces is excessive, the labour intensity of constructor can being reduced simultaneously; Stretch-draw is carried out again to inefficacy anchor pole and can recover pretightning force, anchor pole expense can be saved, and recoverable anchor rod lockset is reused.
Description
Technical field
The utility model relates to a kind of fastening lockset, and specifically a kind of fastening lockset of anchor pole being suitable for the use bolt supports such as geotechnical engineering, underground coal mine, construction of tunnel, belongs to surrounding rock supporting technical field.
Background technology
Bolt support is in side slope, earth's surface engineering and the tunnels such as ground deep foundation ditch, a kind of its support reinforcement mode adopted in the underground chamber constructions such as stope, with metalwork, wooden piece, polymer member or other materials make roofbolt, squeeze in earth's surface rock mass or the pre-drilled hole of chamber surrounding rock body, utilize its head, the special tectonic of the body of rod and afterbody supporting plate, or depend on cohesive action and country rock and rock mass stability are combined and produces suspension effectiveness, compound beam effect, reinforcing effect, to reach the object of supporting, there is cost low, supporting effect is good, easy and simple to handle, use flexibly, take the advantages such as construction headroom is few.
Due to the self-characteristic of different depth rock mass around tunnel and the difference of residing ambient stress, country rock easily produces Incoordinate deformation, so anchor pole needs to carry out pretension to anchor pole in use, prevent because surrouding rock deformation causes anchor pole loosen and then cause supporting to be lost efficacy, rational bolt pretension can increase the confined pressure of rock mass, the stress state of effective change country rock, improve by the mechanical property of Bolted Rock Masses, increase by the intensity of Bolted Rock Masses, play the supporting capacity of country rock self, thus be conducive to keeping the stable of roadway surrounding rock, therefore bolt pretension size is the major parameter of bolt support, also be the important indicator that can anchor pole material play a role.
Current increase bolt pretension mainly adopts the construction method of fastening nuts, and the method for this traditional increase bolt pretension also exists following defect:
1. increasing bolt pretension size mainly relies on nut torque size to control, namely anchor pole afterbody arranges rolled thread section external screw thread, be applied to the moment of torsion of nut by torque wrench or jumbolter and return the pretightning force calculated and apply, the pretightning force of the larger anchor pole of moment of torsion is larger, but construction equipment is difficult to reach requirement when applying more than 300Nm nut torque to anchor pole, the moment of torsion wanting to obtain more than 300Nm larger mainly relies on manpower, therefore constructor's labour intensity is large, and due to the difference of constructor's fitness and the difference of operating time length, be difficult to guarantee that the nut torque of every root anchor pole can reach requirement, design pretightning force to be reached in practice of construction mainly ensure by management means, and the pretightning force relation corresponding with nut torque is because of anchor pole, the material of nut, the difference of construction method and different, different pretightning forces may be there is in the moment of torsion identical for different mounting conditions, there is variable and uncontrollability in pretightning force,
2. anchor pole moment of torsion and pretightning force relation are as shown (indulging muscle yield strength 335MPa anchor rod experiment data instance with left-handed nothing), when anchor pole reaches peak torque as can be seen from the table, anchor on average just reaches about 81KN in pretightning force, only reach 62% of anchor pole material yield strength, do not give full play to the effect of anchor pole material, actual is cause waste;
3. in addition, the pretightning force of fastening nuts anchor pole is used to detect more difficult, because relation that pretightning force and nut torque are corresponding is because material, construction method are different and different, want to detect pretightning force and just must can obtain result by other supplementary means, therefore operate complicated, and when moment of torsion is excessive exceed setting value time also can cause damage to the body of rod of anchor pole;
4. because underground air is moister, the nut of fastening anchor pole is easy to corrosion, when after nut and the corrosion of anchor pole afterbody, carry out fastening again or dismantle all very difficult, easily form methane accumulation at the upper and lower corner of stope, and more easily damaging anchor pole, after screw-thread rust, namely anchor pole is scrapped, and cannot reuse.
Summary of the invention
For above-mentioned prior art Problems existing, the utility model provides a kind of anchor pole fastening lockset, the pretightning force anchoring that can meet high strength requires and pretightning force easily detects, is easy to dismounting and recycling, is ensureing to realize easy operation under anchor pole gives full play to the prerequisite of its supporting performance, reduce constructor's labour intensity.
To achieve these goals, the fastening lockset of this anchor pole comprises anchor ring and intermediate plate;
Described anchor ring is loop configuration, and the through hole in the middle of it is bellmouth;
Described intermediate plate is set to multi-disc, and taper fit, the inwall radian size of its outer wall radian size and bellmouth coordinate with the outside dimension of anchor pole, and intermediate plate is arranged between bellmouth inwall and anchor rod body.
As further improvement of the utility model scheme, the tapering of described bellmouth is set to 1:10 ~ 1:50.
As further improvement of the utility model scheme, the external surface of described intermediate plate is provided with the groove along the circumferential direction arranged, and also comprises elastoplast ring, and elastoplast ring is arranged in groove.
As further improvement of the utility model scheme, described intermediate plate is set to three and Central Symmetry is arranged in the tapered hole of anchor ring.
Compared with prior art, the fastening lockset of this anchor pole is applicable to the support pattern that plurality of specifications bolt pretension installs reinforced roadway country rock, plastic washer and supporting nut is not needed during rockbolt installation, after anchor rod stirring Anchor Agent, direct jumbolter anchor pole lockset can be pushed into country rock surface along anchor pole, jumbolter can be removed after Anchor Agent solidifies, and formed and certain initially protect top ability, constructor and anchor pole facility can be constructed other anchor poles immediately, both can play the effect of protection top board in time, the Fast Installation of anchor pole can have been realized again; Pretightning force directly can read in tensioner pressure meter, pretightning force size is by regulating tensioner pressure-relief valve or obtaining for power time length, can avoid because human factor causes anchor pole torsional forces inadequate, also can avoid turning round bad anchor pole because torsional forces is excessive, the labour intensity of constructor can be reduced simultaneously; When roadway repair, stretching anchor rod lockset is carried out to inefficacy anchor pole again and can recover bolt pretension again, scrap anchor pole again row become support capacity, can save a large amount of anchor pole expense, and only need stretch-draw and recoverable anchor rod lockset and supporting plate when back production, the anchor pole lockset of recovery is reusable, can cost saving, more be conducive to exporting goaf side top board to be up and down caving in time, reduce the methane accumulation of work plane, minimizing accident.
Accompanying drawing explanation
Fig. 1 is mounting structure schematic diagram of the present utility model;
Fig. 2 is the left view of Fig. 1.
In figure: 1, anchor ring, 11, bellmouth, 2, intermediate plate, 3, elastoplast ring, 4, Supporting plate for anchor, 5, anchor pole.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described further.
As shown in Figure 1 and Figure 2, the fastening lockset of this anchor pole comprises anchor ring 1 and intermediate plate 2.
Described anchor ring 1 is loop configuration, and the through hole in the middle of it is bellmouth 11.
Described intermediate plate 2 is set to multi-disc, and taper fit, the inwall radian size of its outer wall radian size and the bellmouth 11 of anchor ring 1 coordinate with the outside dimension of anchor pole 5, and intermediate plate 2 is arranged between bellmouth 11 inwall of anchor ring 1 and anchor pole 5 body of rod.
The fastening lockset of this anchor pole when mounted, Supporting plate for anchor 4 is first inserted at the tail end of anchor pole 5, then the tail end of the small bore end of anchor ring 1 towards anchor pole 5 be inserted in the tail end of anchor pole 5 and lean on Supporting plate for anchor 4, finally intermediate plate 2 being filled between the inwall of the tapered hole 11 of tangible anchor ring 1 and anchor pole 5 body of rod.
The operating principle of this anchor pole fastening lockset locking anchor pole 5 is: utilize coordinating of anchor pole lockset and anchor pole tensioner, stretch-draw is carried out to the anchor pole that anchoring is good in country rock, after tensioner unclamps, anchor pole 5 is in the presence of a tensile force with the trend of the oriented scar motion of intermediate plate 2, because anchor ring 1 inwall is taper, it is larger that intermediate plate 2 is more subject to resistance to the motion of the cone end, intermediate plate 2 pairs of anchor poles 5 hold tighter, anchor pole 5 can not be produced move radially, because anchor pole lockset has better stopping function, the radial load that stretch-draw causes is eventually through anchor pole 5 head Anchor Agent and expose the rock that retaining mechanism passes to anchoring, compressive stress is created to rock thus makes tunnel surrounding rock body jam-packed each other, form the mechanical structure body that can be born larger load, higher geostatic stress can be resisted, thus reach roadway support safety, stable object.
The situation that anchor pole lockset is tested on tensile testing machine: by φ 22mm, 335MPa anchor pole and anchor pole lockset coordinative experiments, time before test, it is disrumpent feelings that anchor pole reaches 220KN pulling force, and anchor pole lockset does not destroy, and illustrates that lockset can reach the requirement of anchor pole ability.
For ensureing that anchor pole lockset pins the retaining effect of anchor pole 1 further, as further improvement of the utility model scheme, the tapering of described bellmouth 11 is set to 1:10 ~ 1:50.
For the ease of installing intermediate plate 2 and ensureing each intermediate plate 2 uniform stressed, as further improvement of the utility model scheme, the external surface of described intermediate plate 2 is provided with the groove 21 along the circumferential direction arranged, also comprise elastoplast ring 3, elastoplast ring 3 is arranged in groove 21, multiple intermediate plate 2 can be strapped in tapered ring-type together by elastoplast ring 3, is convenient to install simultaneously and can prevents the unbalance stress that the front and back position difference of installing because of each intermediate plate 2 causes.
For ensureing that anchor pole lockset pins the retaining effect of anchor pole 5 further, as improvement project of the present utility model, as shown in Figure 2, described intermediate plate 2 is set to three and Central Symmetry is arranged in the tapered hole of anchor ring 1.
The fastening lockset of this anchor pole is applicable to the support pattern that plurality of specifications bolt pretension installs reinforced roadway country rock, plastic washer and supporting nut is not needed during rockbolt installation, after anchor rod stirring Anchor Agent, direct jumbolter anchor pole lockset can be pushed into country rock surface along anchor pole, jumbolter can be removed after Anchor Agent solidifies, and formed and certain initially protect top ability, constructor and anchor pole facility can be constructed other anchor poles immediately, both can play the effect of protection top board in time, the Fast Installation of anchor pole can have been realized again; Pretightning force directly can read in tensioner pressure meter, pretightning force size is by regulating tensioner pressure-relief valve or obtaining for power time length, can avoid because human factor causes anchor pole torsional forces inadequate, also can avoid turning round bad anchor pole because torsional forces is excessive, the labour intensity of constructor can be reduced simultaneously; When roadway repair, stretching anchor rod lockset is carried out to inefficacy anchor pole again and can recover bolt pretension again, scrap anchor pole again row become support capacity, can save a large amount of anchor pole expense, and only need stretch-draw and recoverable anchor rod lockset and supporting plate when back production, the anchor pole lockset of recovery is reusable, can cost saving, more be conducive to exporting goaf side top board to be up and down caving in time, reduce the methane accumulation of work plane, minimizing accident.
Claims (5)
1. the fastening lockset of anchor pole, comprises anchor ring (1), and anchor ring (1) is loop configuration, it is characterized in that, the through hole in the middle of described anchor ring (1) is bellmouth (11); Also comprise intermediate plate (2), intermediate plate (2) is set to multi-disc, taper fit, the inwall radian size of its outer wall radian size and bellmouth (11) coordinate with the outside dimension of anchor pole (5), and intermediate plate (2) is arranged between bellmouth (11) inwall and anchor pole (5) body of rod.
2. the fastening lockset of anchor pole according to claim 1, is characterized in that, the tapering of described bellmouth (11) is set to 1:10 ~ 1:50.
3. the fastening lockset of anchor pole according to claim 1 and 2, it is characterized in that, the external surface of described intermediate plate (2) is provided with the groove (21) along the circumferential direction arranged, and also comprises elastoplast ring (3), and elastoplast ring (3) is arranged in groove (21).
4. the fastening lockset of anchor pole according to claim 1 and 2, is characterized in that, described intermediate plate (2) is set to three and Central Symmetry is arranged in the tapered hole of anchor ring (3).
5. the fastening lockset of anchor pole according to claim 3, is characterized in that, described intermediate plate (2) is set to three and Central Symmetry is arranged in the tapered hole of anchor ring (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420769931.3U CN204312106U (en) | 2014-12-10 | 2014-12-10 | The fastening lockset of anchor pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420769931.3U CN204312106U (en) | 2014-12-10 | 2014-12-10 | The fastening lockset of anchor pole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204312106U true CN204312106U (en) | 2015-05-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420769931.3U Expired - Fee Related CN204312106U (en) | 2014-12-10 | 2014-12-10 | The fastening lockset of anchor pole |
Country Status (1)
| Country | Link |
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| CN (1) | CN204312106U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481352A (en) * | 2016-12-20 | 2017-03-08 | 大同煤矿集团有限责任公司 | A kind of lock tool up and down for reclaiming type anchor bar lockset |
| CN106761866A (en) * | 2016-12-20 | 2017-05-31 | 辽宁工程技术大学 | A kind of reclaiming type anchor bar lockset |
| CN115404859A (en) * | 2022-08-12 | 2022-11-29 | 中建八局第一建设有限公司 | Novel pressure type prestress anti-floating anchor rod and construction method thereof |
-
2014
- 2014-12-10 CN CN201420769931.3U patent/CN204312106U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481352A (en) * | 2016-12-20 | 2017-03-08 | 大同煤矿集团有限责任公司 | A kind of lock tool up and down for reclaiming type anchor bar lockset |
| CN106761866A (en) * | 2016-12-20 | 2017-05-31 | 辽宁工程技术大学 | A kind of reclaiming type anchor bar lockset |
| CN106761866B (en) * | 2016-12-20 | 2018-11-02 | 辽宁工程技术大学 | A kind of reclaiming type anchor bar lockset |
| CN106481352B (en) * | 2016-12-20 | 2018-11-09 | 大同煤矿集团有限责任公司 | A kind of lock tool up and down for reclaiming type anchor bar lockset |
| CN115404859A (en) * | 2022-08-12 | 2022-11-29 | 中建八局第一建设有限公司 | Novel pressure type prestress anti-floating anchor rod and construction method thereof |
| CN115404859B (en) * | 2022-08-12 | 2023-07-11 | 中建八局第一建设有限公司 | Novel pressure type prestress anti-floating anchor rod and construction method thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150506 Termination date: 20161210 |