CN201212399Y - Fiber-reinforced plastic anchor rod fastening device - Google Patents
Fiber-reinforced plastic anchor rod fastening device Download PDFInfo
- Publication number
- CN201212399Y CN201212399Y CNU2008201117775U CN200820111777U CN201212399Y CN 201212399 Y CN201212399 Y CN 201212399Y CN U2008201117775 U CNU2008201117775 U CN U2008201117775U CN 200820111777 U CN200820111777 U CN 200820111777U CN 201212399 Y CN201212399 Y CN 201212399Y
- Authority
- CN
- China
- Prior art keywords
- nut
- anchor pole
- inner cone
- anchor rod
- supporting plate
- 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 - Fee Related
Links
- 229920002430 Fibre-reinforced plastic Polymers 0.000 title claims description 17
- 239000011151 fibre-reinforced plastic Substances 0.000 title claims description 10
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 abstract description 5
- 239000010959 steel Substances 0.000 abstract description 5
- 238000005452 bending Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 4
- 239000011521 glass Substances 0.000 abstract description 3
- 239000000835 fiber Substances 0.000 abstract 1
- 239000004033 plastic Substances 0.000 abstract 1
- 229920003023 plastic Polymers 0.000 abstract 1
- 230000002787 reinforcement Effects 0.000 abstract 1
- 239000003365 glass fiber Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 3
- 238000010008 shearing Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
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- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses a fiber reinforcement plastics anchor rod securing device which belongs to an anchor rod securing device. A combined nut of the anchor rod securing device is composed of an inner cone nut sleeve (3) and an outer cone nut (2), and the anchor rod securing device and a support plate (4) cooperating with an end face thereof are coaxially arranged on an anchor rod (1). The utility model has great locking force and a certain extension and can automatically change the inclination angle so as to overcome bending force resulting from the nonperpendicularity of the installation of the anchor rod and a supporting plate. The utility model can cooperate with various prior glass steel anchor rods, greatly improve the rigidity limit of glass steel anchor rods and improve the installation adaptability.
Description
Technical field
The utility model relates to mining anchor pole fastener, specifically is a kind of fiber-reinforced plastic anchored bar fastener.
Technical background
Adopt wide popularization and application in the supporting of lane with anchor rod anchored coal production industry at home down-hole.Common anchorage style is that anchor pole is fixed in the country rock in tunnel, and the tail end at anchor pole puts discoid supporting plate then, uses with the nut of anchor pole tail end threads engaged fastening again.The material of its use generally is a screw-thread steel.Occur glass fibre reinforced plastics rockbolts the seventies abroad, domestic in recent years glass fibre reinforced plastics rockbolts also begins to move towards market.The weakness of present glass fibre reinforced plastics rockbolts tensile strength is mainly at tailing screw flight, easily damaged by the reason of 3 aspects:
1, because of common anchor tail by screw threads for fastening, just rely on the engagement of thread fastening, and the material that glass fibre reinforced plastics rockbolts provides thread to mesh all is a composite material, its material property decision shear strength is poor, so be not that thread cut off when being subjected to shearing is exactly that nut cracking loses engagement capability, causes fastening inefficacy.
Can not guarantee that the body of rod is perpendicular to wall when 2, anchor pole is installed, the out-of-flatness of wall in addition, the body of rod and pallet are not an angle of 90 degrees usually, angle will appear in nut end face and pallet end face, when anchor pole is stressed, the end face of nut is close to the pallet end face is parallel automatically, just gives bending power of the body of rod this moment; Because of the intensity of glass fiber reinforced plastic body of rod bend resistance very poor, so body of rod afterbody fractures.
3, be subjected to the compressing of geostatic stress in the bolt support process always, but the pressure of moment can be very big when bump took place, steel anchor rod can produce and extend deformation to offset the compressing of bump this moment, the simple glass steel anchor rod is then because its elongation per unit length is low, be difficult to the impact of pressure, its weakness is that anchor tail screw thread is at first destroyed with resisting.
Summary of the invention
The utility model provides a kind of fiber-reinforced plastic anchored bar fastener, is used to solve the shortcoming of various in the market glass fibre reinforced plastics rockbolts afterbody coupling mechanism force differences.
The utility model is realized with following technical scheme: a kind of fiber-reinforced plastic anchored bar fastener, it comprises discoid supporting plate, it is characterized in that: there is circular cambered surface projection in the centre in a side of discoid supporting plate, the through hole that penetrates for anchor pole is arranged at the center of circular cambered surface projection, through hole top is the shallow wide-angle inner cone of open type, and the through hole bottom is downward female cone; The anchor pole fastener also comprises the combination nut that outer flare nut and inner cone nut sleeve are combined into; The central through hole of described outer flare nut is and the screw thread of the tail end threads engaged of anchor pole, and the rear appearance of outer flare nut is a six-sided nut, and front appearance is outer tapered; The center of described inner cone nut sleeve is the interior tapered through hole that can cooperate with the front appearance of outer flare nut, and rear appearance is a circular cone or cylindric, and front end is short wide-angle outer cone; Discoid supporting plate, inner cone nut sleeve and outer flare nut concentric locking collar are contained on the anchor pole.Discoid supporting plate, inner cone nut sleeve, outer flare nut and anchor pole are all made of fibre reinforced plastics.
Because combination nut is that outer flare nut cooperates composition with the inner cone nut sleeve, when being subjected to pulling force, interior flare nut is then to the direction of pull jacking, and this moment, it was subjected to the restriction of inner cone nut sleeve, with simple axial tension transfer to forward resistance and to two kinds of component of pressure in axle center.So combination nut goes plain nut to resist axial tension by the shear behavior of thread merely, transfer shearing resistance and the combination of holding power tightly to, improved the supporting capacity of anchor tail greatly.Outer flare nut relies on inner cone nut sleeve slides forwards and produces the power of holding tightly, thus it provide extension again to front slide.The front end of nut sleeve is for short outer tapered, and the upper end of pallet through hole is shallow inner conical, and both form cooperation, and when being subjected to non-perpendicular axial tension, both can produce slip, change the inclination angle automatically, have avoided body of rod bending damage.
The beneficial effects of the utility model are: coupling mechanism force is big, certain extension is arranged, and the angle of inclination that can change pallet automatically is to overcome the bending force that anchor pole and pallet produce when the installation out of plumb.Can cooperate with current various glass fibre reinforced plastics rockbolts, can increase substantially the strength limit of glass fibre reinforced plastics rockbolts, and can improve installation compliance.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described.
Fig. 1 is the utility model structural representation;
Fig. 2 is the A-A sectional view of Fig. 1.
Among the figure: 1, anchor pole, 2, outer flare nut, 3, the inner cone nut sleeve, 4, pallet, 4-1, circular cambered surface projection.
The specific embodiment
The anchor pole fastener is made up of combination nut and pallet 4 as shown in Figure 1 and Figure 2, and both constitute combination nut by outer flare nut 2 and inner cone nut sleeve 3.Outer flare nut 2, inner cone nut sleeve 3 and pallet 4 threes are concentric structure.Supporting plate 4 is discoid, circular cambered surface projection 4-1 is arranged in the centre of a side of discoid supporting plate 4, the through hole that penetrates for anchor pole is arranged at the center of circular cambered surface projection, through hole top is the shallow wide-angle inner cone of open type, the through hole bottom is downward female cone, with convenient anchor pole change angle of passing from the center.The central through hole of outer flare nut 2 is and the screw thread of the tail end threads engaged of anchor pole, and the rear appearance of outer flare nut 2 is six-sided nuts, and front appearance is outer tapered; The center of inner cone nut sleeve 3 is the interior tapered through holes that can cooperate with the front appearance of outer flare nut 2, and rear appearance is a circular cone or cylindric, and front end is short wide-angle outer cone; Discoid supporting plate 4, inner cone nut sleeve 3 and outer flare nut 2 concentric locking collars are contained on the anchor pole 1.Discoid supporting plate 4, inner cone nut sleeve 3, outer flare nut 2 and anchor pole 1 are all made of fibre reinforced plastics.
Claims (2)
1, a kind of fiber-reinforced plastic anchored bar fastener, it comprises discoid supporting plate (4), it is characterized in that: there is circular cambered surface projection (4-1) in the centre in a side of discoid supporting plate (4), the through hole that penetrates for anchor pole is arranged at the center of circular cambered surface projection, through hole top is the shallow wide-angle inner cone of open type, and the through hole bottom is downward female cone; The anchor pole fastener also comprises the combination nut that outer flare nut (2) and inner cone nut sleeve (3) are combined into; The central through hole of described outer flare nut (2) is and the screw thread of the tail end threads engaged of anchor pole, and the rear appearance of outer flare nut (2) is a six-sided nut, and front appearance is outer tapered; The center of described inner cone nut sleeve (3) is the interior tapered through hole that can cooperate with the front appearance of outer flare nut (2), and rear appearance is a circular cone or cylindric, and front end is short wide-angle outer cone; Discoid supporting plate (4), inner cone nut sleeve (3) and outer flare nut (2) concentric locking collar are contained on the anchor pole (1).
2, a kind of fiber-reinforced plastic anchored bar fastener according to claim 1 is characterized in that discoid supporting plate (4), inner cone nut sleeve (3), outer flare nut (2) and anchor pole (1) all make of fibre reinforced plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201117775U CN201212399Y (en) | 2008-05-09 | 2008-05-09 | Fiber-reinforced plastic anchor rod fastening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201117775U CN201212399Y (en) | 2008-05-09 | 2008-05-09 | Fiber-reinforced plastic anchor rod fastening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201212399Y true CN201212399Y (en) | 2009-03-25 |
Family
ID=40496568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201117775U Expired - Fee Related CN201212399Y (en) | 2008-05-09 | 2008-05-09 | Fiber-reinforced plastic anchor rod fastening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201212399Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020234A (en) * | 2015-06-04 | 2015-11-04 | 中国矿业大学 | Composite nut for fastening fiber reinforced plastic anchor rod |
| CN107327469A (en) * | 2017-05-25 | 2017-11-07 | 江苏海川新材料科技有限公司 | A kind of tapered fiberglass tray nut |
| CN112483156A (en) * | 2020-12-14 | 2021-03-12 | 兖州煤业股份有限公司 | Friction constant-resistance grading yielding anchor rod |
| WO2021082839A1 (en) * | 2019-10-31 | 2021-05-06 | 何满潮 | Npr anchor rod |
-
2008
- 2008-05-09 CN CNU2008201117775U patent/CN201212399Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020234A (en) * | 2015-06-04 | 2015-11-04 | 中国矿业大学 | Composite nut for fastening fiber reinforced plastic anchor rod |
| CN107327469A (en) * | 2017-05-25 | 2017-11-07 | 江苏海川新材料科技有限公司 | A kind of tapered fiberglass tray nut |
| WO2021082839A1 (en) * | 2019-10-31 | 2021-05-06 | 何满潮 | Npr anchor rod |
| CN112483156A (en) * | 2020-12-14 | 2021-03-12 | 兖州煤业股份有限公司 | Friction constant-resistance grading yielding 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: 20090325 Termination date: 20100509 |