CN204371385U - The anchor pole that thread rotary orientation is contrary - Google Patents
The anchor pole that thread rotary orientation is contrary Download PDFInfo
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- CN204371385U CN204371385U CN201420804404.1U CN201420804404U CN204371385U CN 204371385 U CN204371385 U CN 204371385U CN 201420804404 U CN201420804404 U CN 201420804404U CN 204371385 U CN204371385 U CN 204371385U
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- screw thread
- anchor pole
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- dextrorotation
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Abstract
The utility model provides the anchor pole that a kind of thread rotary orientation is contrary, comprise: the body of rod, the front end of the described body of rod is provided with left-handed to screw thread or left-handed to cross rib, described left-handed to screw thread or left-handed continuous on same helicoid to cross rib, the rear end of the described body of rod is provided with dextrorotation to screw thread, and described dextrorotation is continuous on same helicoid to screw thread; Pre-load nut, is arranged on the rear end of the described body of rod, and described pre-load nut and described dextrorotation are formed to screw thread and is threaded.Due to, the screw thread of the front end of the described body of rod or cross rib be left-handed to, can anchor pole turn clockwise stir time, improve the compactness of Anchor Agent, and then improve the binding strength of Anchor Agent, and, the screw thread of the rear end of the described body of rod be dextrorotation to, without the need to carrying out secondary operations, pre-load nut can be made to be formed with the rear end of the body of rod be threaded, avoid the stress that secondary operations causes to concentrate and metallic fiber phenomenon of rupture, improve the performance of anchor pole, also reduce the cost of anchor pole simultaneously.
Description
Technical field
The utility model relates to anchor device technology, particularly relates to the anchor pole that a kind of thread rotary orientation is contrary.
Background technology
Rock bolting technology is widely used in social base process of construction, especially in the projects such as tunnel developing, side slope protection, coal mine excavation, all need to adopt bolt support technology to come to implement to reinforce to work plane peripheral rock, ensure that the stability of country rock is to prevent the generation of cave-in accident.
There is various structures in anchor pole, what will apply at present is thread steel type resin anchor.Thread steel type resin anchor is become by the thread steel type body of rod, afterbody clamp nut and other enclosure group.During such anchor pole operation, first hole on country rock, then in hole, resin anchoring agent is filled in, with anchor pole, Anchor Agent is pushed at the bottom of hole again, construction equipment drives anchor pole Stirring Anchor Agent, anchor rod body and country rock are bonded as one by Anchor Agent generation chemical reaction, and the later stage realizes the pretension of the body of rod again by clamp nut.Pretightning force is passed to country rock by other annexes of anchor pole, and then changes the force structure of country rock, makes the stress of country rock reach balance, prevents wall damage.In a Bolt System, the linking intensity of the binding strength of the body of rod and country rock, the strength of materials of the body of rod self and the body of rod and nut, be all the restraining factors of whole support system intensity, three should match each other and be advisable.
The screw thread cross rib of existing thread steel type anchor pole be divided into left-handed to dextrorotation to, for dextrorotation to for cross rib anchor pole, anchor pole can produce the power that Anchor Agent outwards screws out when rotating clockwise, i.e. " drawing outside Anchor Agent " phenomenon of being commonly called as of industry.This phenomenon can cause Anchor Agent loose, and leakiness affects the anchoring strength of anchor pole and country rock, constrains the raising of whole anchor system intensity.For left-handed to cross rib anchor pole, the left-handed of anchored end can compacting Anchor Agent when anchor pole rotates clockwise to cross rib, has positive effect to raising anchoring strength.But due to construction equipment mostly be clockwise (from viewed from afterbody to end), while compacting Anchor Agent, the clamp nut of anchor pole afterbody is made to move to compress country rock wall towards the direction away from afterbody in order to enable anchor pole, need to carry out secondary machine to anchor pole afterbody, to form dextrorotation to screw thread.But the secondary machine of anchor pole afterbody can cause anchor rod body hydraulic performance decline, govern the raising of whole anchor rod system intensity.Further, anchor pole afterbody secondary operations can cause the increase of anchor pole cost of production, production efficiency reduction.
Utility model content
The utility model provides the anchor pole that a kind of thread rotary orientation is contrary, to improve anchor pole performance, reduce cost of production, to enhance productivity, simultaneously easy to use and reliable.
The utility model provides the anchor pole that a kind of rotation direction is contrary, comprising:
The body of rod, the front end of the described body of rod is provided with left-handed to screw thread or left-handed to cross rib, and described left-handed to screw thread or left-handed continuous on same helicoid to cross rib, the rear end of the described body of rod is provided with dextrorotation to screw thread, and described dextrorotation is continuous on same helicoid to screw thread;
Pre-load nut, is arranged on the rear end of the described body of rod, and described pre-load nut and described dextrorotation are formed to screw thread and is threaded.
Alternatively, described dextrorotation is more than or equal to 16 millimeters to the footpath, the end of screw thread, and is less than or equal to 25 millimeters.
Alternatively, described dextrorotation is more than or equal to 2 millimeters to the pitch of screw thread, and is less than or equal to 6 millimeters.
Alternatively, described dextrorotation is less than or equal to 6.5 degree to the lead angle of screw thread.
Alternatively, the described body of rod is by the rod member of the direct hot-roll forming of steel billet.
The utility model provides the anchor pole that a kind of rotation direction is contrary, comprise: the body of rod, the front end of the described body of rod is provided with left-handed to screw thread or left-handed to cross rib, described left-handed to screw thread or left-handed continuous on same helicoid to cross rib, the rear end of the described body of rod is provided with dextrorotation to screw thread, and described dextrorotation is continuous on same helicoid to screw thread; Pre-load nut, is arranged on the rear end of the described body of rod, and described pre-load nut and described dextrorotation are formed to screw thread and is threaded.Due to, the screw thread of the front end of the described body of rod or cross rib be left-handed to, can anchor pole turn clockwise stir time, improve the compactness of Anchor Agent, and then improve the binding strength of Anchor Agent, and, the screw thread of the rear end of the described body of rod be dextrorotation to, without the need to carrying out secondary operations, pre-load nut can be made to be formed with the rear end of the body of rod be threaded, avoid the stress that secondary operations causes to concentrate and metallic fiber phenomenon of rupture, improve the performance of anchor pole, also reduce the cost of anchor pole simultaneously.
Accompanying drawing explanation
The structural representation of the anchor pole that a kind of thread rotary orientation that Fig. 1 provides for the utility model is contrary.
Reference numeral:
11: the body of rod; 12: pre-load nut.
Detailed description of the invention
The structural representation of the anchor pole that a kind of thread rotary orientation that Fig. 1 provides for the utility model is contrary, as shown in Figure 1, described anchor pole comprises: the body of rod 11 and pre-load nut 12.The front end of the described body of rod 11 is provided with left-handed to screw thread or left-handed to cross rib, and described left-handed to screw thread or left-handed continuous on same helicoid to cross rib, the rear end of the described body of rod 11 is provided with dextrorotation to screw thread, and described dextrorotation is continuous on same helicoid to screw thread.Pre-load nut 12, be arranged on the rear end of the described body of rod 11, described pre-load nut 12 and described dextrorotation are formed to screw thread and are threaded.
The anchor rod body 11 of the present embodiment can by the direct hot-roll forming of steel billet, and make the metallic fiber of the body of rod 11 continuous thus, interior tissue is even, intensity and toughness better.The deformed steel bar transverse rib of the front end of the body of rod 11 is left hand direction, the deformed steel bar transverse rib of the rear end of the body of rod 11 be dextrorotation to, the rear end of the body of rod 11 and nut end, the dextrorotation of the rear end of the body of rod 11 is fine thread to screw thread, can directly and pre-load nut 12 form thread connection.In the present embodiment, the screw thread of the front end of the body of rod 11 or cross rib be left-handed to, can anchor pole turn clockwise stir time, improve the compactness of Anchor Agent, and then improve the binding strength of Anchor Agent.And the screw thread of the rear end of the body of rod 11 be dextrorotation to, without the need to secondary operations, can directly and pre-load nut 12 form thread connection.Because the rear end of the body of rod 11 is without secondary operations, avoid the stress that secondary operations causes and concentrate and metallic fiber phenomenon of rupture, the total length performance of the body of rod 11 is consistent, without performance Bottle Neck Road, achieves the maximum utilizationization of steel performance.
Alternatively, the dextrorotation of the rear end of the body of rod 11 is little to the thread pitch of screw thread, and lead angle is little.Described dextrorotation is more than or equal to 2 millimeters to the pitch of screw thread, and is less than or equal to 6 millimeters, and described dextrorotation is less than or equal to 6.5 degree to the lead angle of screw thread, and be less than the Self-locking angle 8.5 ° be threaded, self-locking property is solid and reliable.Because the lead angle of the rear end of the body of rod 11 is much smaller than the Self-locking angle of material self, self-locking property is reliable, avoids pre-load nut 12 and comes off, improve safety; In addition, because screw thread is continuous on same helicoid, come off when fragmentation occurs country rock skin, when causing anchor pole pretension to lose efficacy, by continuing to screw pre-load nut 12, pretension again, without the need to secondary anchoring, has greatly saved steel, has reduced engineering cost.
Alternatively, described dextrorotation is more than or equal to 16 millimeters to the footpath, the end of screw thread, and is less than or equal to 25 millimeters.Make the specification highly versatile of anchor pole thus, facilitate the manufacture of anchor pole.
In the present embodiment, in use, first in the boring of country rock wall, bore dia and length are mated with the geometric parameter of the body of rod 11 of anchor pole; Then in hole, Anchor Agent is filled in; Pushing Anchor Agent with the front end of the body of rod 11 again squeezes into bottom hole, and the rear end of the body of rod 11 exposed loads pre-load nut 12.Construction equipment is connected with pre-load nut 12 by linkage, drives pre-load nut 12 to turn clockwise (viewed from the rear end of anchor pole forward end) after starting construction equipment, pre-load nut 12 then the drive body of rod 11 together relatively country rock rotate clockwise.
After the body of rod 11 starts to rotate clockwise, the front end of the body of rod 11 produces stirring action to the Anchor Agent at the bottom of country rock hole, cross rib due to the screw thread of the body of rod 11 be left-handed to, the body of rod 11 pairs of Anchor Agents produce an axial force towards direction at the bottom of hole, promote Anchor Agent to move to direction at the bottom of hole, Anchor Agent is compacted, more abundant with the contact of the body of rod 11 and country rock hole wall, and then make the body of rod 11 higher with the binding strength of country rock.
To stir according to Anchor Agent official hour and after waiting for, the front end of the body of rod 11 and country rock consolidation are integrated.Then open construction appliance, drive pre-load nut 12 to rotate clockwise, progressively compress country rock wall, make anchor pole produce pretightning force, reach the support action to country rock.
The utility model provides the anchor pole that a kind of rotation direction is contrary, comprise: the body of rod, the front end of the described body of rod is provided with left-handed to screw thread or left-handed to cross rib, described left-handed to screw thread or left-handed continuous on same helicoid to cross rib, the rear end of the described body of rod is provided with dextrorotation to screw thread, and described dextrorotation is continuous on same helicoid to screw thread; Pre-load nut, is arranged on the rear end of the described body of rod, and described pre-load nut and described dextrorotation are formed to screw thread and is threaded.Due to, the screw thread of the front end of the described body of rod or cross rib be left-handed to, can anchor pole turn clockwise stir time, improve the compactness of Anchor Agent, and then improve the binding strength of Anchor Agent, and, the screw thread of the rear end of the described body of rod be dextrorotation to, without the need to carrying out secondary operations, pre-load nut can be made to be formed with the rear end of the body of rod be threaded, avoid the stress that secondary operations causes to concentrate and metallic fiber phenomenon of rupture, improve the performance of anchor pole, also reduce the cost of anchor pole simultaneously.
Last it is noted that above each embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to foregoing embodiments, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of each embodiment technical scheme of the utility model.
Claims (5)
1. the anchor pole that thread rotary orientation is contrary, is characterized in that, comprising:
The body of rod, the front end of the described body of rod is provided with left-handed to screw thread or left-handed to cross rib, and described left-handed to screw thread or left-handed continuous on same helicoid to cross rib, the rear end of the described body of rod is provided with dextrorotation to screw thread, and described dextrorotation is continuous on same helicoid to screw thread;
Pre-load nut, is arranged on the rear end of the described body of rod, and described pre-load nut and described dextrorotation are formed to screw thread and is threaded.
2. anchor pole according to claim 1, is characterized in that, described dextrorotation is more than or equal to 16 millimeters to the footpath, the end of screw thread, and is less than or equal to 25 millimeters.
3. anchor pole according to claim 2, is characterized in that, described dextrorotation is more than or equal to 2 millimeters to the pitch of screw thread, and is less than or equal to 6 millimeters.
4. anchor pole according to claim 3, is characterized in that, described dextrorotation is less than or equal to 6.5 degree to the lead angle of screw thread.
5. the anchor pole according to any one of claim 1-4, is characterized in that, the described body of rod is by the rod member of the direct hot-roll forming of steel billet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420804404.1U CN204371385U (en) | 2014-12-17 | 2014-12-17 | The anchor pole that thread rotary orientation is contrary |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420804404.1U CN204371385U (en) | 2014-12-17 | 2014-12-17 | The anchor pole that thread rotary orientation is contrary |
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| Publication Number | Publication Date |
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| CN204371385U true CN204371385U (en) | 2015-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420804404.1U Active CN204371385U (en) | 2014-12-17 | 2014-12-17 | The anchor pole that thread rotary orientation is contrary |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109137903A (en) * | 2018-09-06 | 2019-01-04 | 山东焱鑫矿用材料加工有限公司 | A kind of non-cold working connection steel part with double rotational directions screw thread |
| CN109578034A (en) * | 2019-01-25 | 2019-04-05 | 山东焱鑫矿用材料加工有限公司 | A kind of high strength grouting anchor cable with from degassing function |
| CN109706928A (en) * | 2019-02-01 | 2019-05-03 | 贵州省材料产业技术研究院 | High-strength antitorque resin fibre composite material anchor shaft and preparation method thereof |
| CN111396103A (en) * | 2020-03-05 | 2020-07-10 | 首钢长治钢铁有限公司 | Continuous rib anchor rod steel and preparation method thereof |
-
2014
- 2014-12-17 CN CN201420804404.1U patent/CN204371385U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109137903A (en) * | 2018-09-06 | 2019-01-04 | 山东焱鑫矿用材料加工有限公司 | A kind of non-cold working connection steel part with double rotational directions screw thread |
| CN109578034A (en) * | 2019-01-25 | 2019-04-05 | 山东焱鑫矿用材料加工有限公司 | A kind of high strength grouting anchor cable with from degassing function |
| CN109578034B (en) * | 2019-01-25 | 2023-09-15 | 山东焱鑫矿用材料加工有限公司 | High-strength grouting anchor cable with self-exhausting function |
| CN109706928A (en) * | 2019-02-01 | 2019-05-03 | 贵州省材料产业技术研究院 | High-strength antitorque resin fibre composite material anchor shaft and preparation method thereof |
| CN111396103A (en) * | 2020-03-05 | 2020-07-10 | 首钢长治钢铁有限公司 | Continuous rib anchor rod steel and preparation method thereof |
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