CN204572031U - Self adaptation is anti-corrosion anchor pole - Google Patents
Self adaptation is anti-corrosion anchor pole Download PDFInfo
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- CN204572031U CN204572031U CN201520291897.8U CN201520291897U CN204572031U CN 204572031 U CN204572031 U CN 204572031U CN 201520291897 U CN201520291897 U CN 201520291897U CN 204572031 U CN204572031 U CN 204572031U
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- roller
- ejector sleeve
- supporting seat
- anchor pole
- self adaptation
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Abstract
The utility model discloses the anti-corrosion anchor pole of a kind of self adaptation, comprise ejector sleeve, stretching bar and supporting seat, it is characterized in that, described ejector sleeve and supporting seat are socketed in the outside of stretching bar, roller is provided with between described ejector sleeve and described supporting seat, it is inner that described roller is positioned at described supporting seat, and described roller is provided with multiple, even circumferential around described stretching bar distributes, described roller is arranged on the front end of described ejector sleeve, make described ejector sleeve when promoting to supporting seat direction, described roller or described ejector sleeve apply radial pressure to described stretching bar; Described supporting seat is fixed by nut.The utility model solves anchor pole and works in the complex environments such as air-tight moist, alternation of wetting and drying, permanent immersion, causes the corrosion of anchor metal, destroys the surface of anchor pole material, cause the problem rupturing or reduce supporting capacity.
Description
Technical field
The utility model is the anti-corrosion anchor pole of a kind of self adaptation, belongs to civil construction apparatus field.
Background technology
Bolt support has strong adaptability, is easy to the features such as installation, in mine, tunnel, widely applies in the engineering such as dam body, civil construction.Extendable anchor rod can make anchor pole and country rock have certain distortion, to discharge the failure energy of surrouding rock deformation when ensureing supporting drag.This anchor pole is divided into the extending and structural member of the body of rod to slide extending two large classes by operating principle.The former is the Support Resistance and the elongation that rely on the yield strength of anchor pole material and elongation per unit length to provide anchor pole respectively, the body of rod bending elongation anchor pole of typically Thyssen Extendable anchor rod and former Soviet Union's development; The latter is some frame for movement of design, when surrouding rock deformation passes to the body of rod, after in the body of rod, tensile stress reaches certain numerical value, the body of rod can help frame for movement and slides by nationality, the resistance that the body of rod slides and slippage are working resistance and the elongation of anchor pole, and typical pattern has structural friction slidingtype, structure shear slidingtype and structure to extrude slidingtype.(Hou Chaojiong, Extendable anchor rod Principle and application, northeast colliery engineering, 1995,5).
Rely deserved people such as grade in " several Extendable anchor rod (coal mining, 3rd phase in 1998) " in summarize several forms of Extendable anchor rod, comprise body of rod friction elongation formula, aperture compression, the snakelike formula of the body of rod and the body of rod and extend formula Extendable anchor rod etc., but all well applied.
Along with the mining depth of mineral resources constantly extends, roadway surrounding rock body surface reveals obvious large deformation, the earth pressure, continues to flow the soft rock characteristic become, higher requirement is proposed to bolt support material: anchor pole and country rock compatible deformation, allow country rock controllable deforming, play country rock self-supporting ability (Zhang Guoqing. the developmental research [J] of high-strength plasticity TRIP steel anchor rod. coal mine machinery, 2013,34 (11): 43-45).The elongation rate of tradition High strength bolt, generally about 15%, can not adapt to this new requirement, therefore needs to use large deformation anchor rod.
The people such as Li You also describe pipe seam formula in " a kind of novel Extendable anchor rod being applicable to Large Deformation Support " (Central-South highway engineering, the 2007,2nd phase) literary composition, the isostructural Extendable anchor rod of water expansion type also can realize Large Deformation Support.
Patent CN201010196197.2 proposes a kind of constant resistance and large deformation anchor rod, utilizes the screw thread on the body of rod and the frictional force between nut to provide resistance, realizes large deflection.But thisly provide the structure of resistance by friction, the intensity of anchor pole self can not be given full play to, must make that the diameter of the body of rod own is very large just can provide enough anchor pole power.Patent CN201110187361.8 proposes a kind of constant-resistance energy-absorption anchor rod reinforcing large deformation rock mass, and conically shaped extruding can make its internal diameter expand generation resistance by expanding cylinder.In fact, be difficult to control cylinder be not destroyed in expanding process and cause anchor pole to lose efficacy.CN201110332484 proposes a kind of shearing sleeve type yielding bolt, and anchor rod body surface soldered has the shearing core of some and spacing, realizes distortion allow pressure energy power by the mutual shear action shearing core and sleeve pipe little internal diameter section.Like this, sleeve pipe needs to have quite high intensity.CN201210139092.2 discloses a kind of high-strength constant resistance and large deformation anchor rod and using method thereof, and the body of rod provides resistance and elongation by the reduction of diameter during wire drawing die.In theory, the pulling force that overall plastic deformation needs occur the body of rod is very large, and requires that the intensity of the parts of restrained deformation (as wire drawing die etc.) is very high, and anchor pole cost will be made very high.
The people such as Jiang Li have inquired into the possibility (Jiang Li of novel high-strength steel (TRIP steel and TWIP steel) as anchor pole, Shen Hanling. the mechanical property [J] of novel ultra-high strength anchor pole material. mine pressure and roof control, 1998, (4) .:29-32), this steel has excellent strong plasticity, but expensive, apply and need time.
Once external tensile force F exceedes the resistance of deformation P of anchor pole, namely there is elongation strain in anchor pole, and extending speed V is determining with joint efforts by tensile force f and resistance of deformation P two power.General resistance of deformation P is certain, changes so extend speed V with tensile force f change.The occasion of extending needing constant speed, rate of strain does not change with external force change, need to carry out complicated control, by changing resistance of deformation to adapt to the change of external force, increase resistance large deformation anchor rod and application process thereof as patent CN102953743A discloses a kind of Based Intelligent Control, utilize computer program controlling distortion resistance.
Anchor pole is generally work in the complex environments such as air-tight moist, alternation of wetting and drying, permanent immersion.These factors all may cause the corrosion of anchor metal, destroy the surface of anchor pole material, cause fracture or reduce supporting capacity.
Utility model content
The purpose of this utility model is to provide the anti-corrosion anchor pole of a kind of self adaptation, solve anchor pole to work in the complex environments such as air-tight moist, alternation of wetting and drying, permanent immersion, cause the corrosion of anchor metal, destroy the surface of anchor pole material, cause the problem rupturing or reduce supporting capacity.
The purpose of this utility model carrys out specific implementation by the following technical programs:
Self adaptation is anti-corrosion anchor pole, comprise ejector sleeve, stretching bar and supporting seat, described ejector sleeve and supporting seat are socketed in the outside of stretching bar, between described ejector sleeve and described supporting seat, be provided with roller, it is inner that described roller is positioned at described supporting seat, and described roller is provided with multiple, even circumferential around described stretching bar distributes, described roller is arranged on the front end of described ejector sleeve, makes described ejector sleeve when promoting to supporting seat direction, and described roller or described ejector sleeve apply radial pressure to described stretching bar; Described supporting seat is fixed by nut.
Preferably, described roller is set to cylindrical roller, and corresponding described roller is provided with the gathering sill of gradually-reducing shape in described supporting seat inside; The pushing surface of described ejector sleeve front end is plane, and described roller is positioned in the pushing surface of described ejector sleeve front end; Corresponding described roller is provided with multiple longitudinal projection in the external surface integration of described stretching bar, and the front end of each described projection is set to ramp structure.
Further design is, described roller is provided with four, and is positioned on same cross section.
Preferably, described roller is set to cylindrical roller, and described ejector sleeve is set to several the longitudinal fins be slidably matched with the bar that stretches by corresponding each described roller, is provided with inclined-plane in the front end of longitudinal fin, described roller coordinates with inclined-plane, and each roller is positioned among the roller locating slot of described supporting seat.
Fitting face between described longitudinal fin and described stretching bar is plane.
Preferably, in the sidewall upper shed of described supporting seat, and be provided with commutation pull bar, described commutation pull bar and described rollers co-operate, described roller is set to cylindrical roller, and the pushing surface of described ejector sleeve front end is plane, and described roller is positioned in the pushing surface of described ejector sleeve front end.
Preferably, described roller is set to cylindrical roller, and corresponding described roller is provided with the gathering sill of gradually-reducing shape in described supporting seat inside; The outer wall of described ejector sleeve is provided with the tooth of several radial structures, and the front end of tooth is set to the surface of inclination, makes described ejector sleeve when driven forward, this surface and described rollers co-operate.
Preferably, described roller is set to cylindrical roller, and corresponding described roller is provided with the gathering sill of gradually-reducing shape in described supporting seat inside; The pushing surface of described ejector sleeve front end is plane, and described roller is positioned in the pushing surface of described ejector sleeve front end.
Preferably, in the sidewall upper shed of described supporting seat, and be provided with gland, described gland withstands on outside described roller, described roller is set to spherical roller, and the outer wall of described ejector sleeve is provided with the tooth of several radial structures, and the front end of tooth is set to the surface of inclination, make described ejector sleeve when driven forward, this surface and described rollers co-operate.
The surface of described stretching bar adopts plastic material manufacture, and core bar adopts hard material manufacture.
Stretching bar is the structure that soft or hard combines, and be namely made up of two-layer to surface core, core is the material of high strength, and top layer is the soft material of high-ductility, easily plastic strain occurs during the power that is squeezed.Soft layer can be various shape projection, also can not need projection.Non-deformed body is high-strength material, selects high-strength steel etc. according to condition of work; Support set, mobile block and lever are hard material, operationally plastic strain and fracture do not occur.
Process that top layer is anti-corrosion: process in heat-treatment furnace, passes into water vapour or the ammonia of pressure 0.01-1MPa, at 400-600 DEG C of temperature, is incubated 0.1-2 hour.
Corrosion-resistant treatment method is softened on top layer: process in heat-treatment furnace, passes into the gaseous mixture of water vapour and hydrogen, water vapour pressure 0.01-1MPa, Hydrogen Vapor Pressure 0.01-1MPa.Stop hydrogen supply being incubated 1-10 hour at 400-900 DEG C of temperature after, at 400-600 DEG C of temperature, be incubated 0.1-2 hour.
Stretching bar by after hard roller, the local plastic deformation (soft layer or tooth) of the body that only deforms under depressing force effect, larger than the resistance of frictional rock bolt, but easilier than the body of rod whole generation plastic strain to realize; Possess large deformation and large drag simultaneously, and can adjust as required, the change of self adaptation external force and the elongation that remains a constant speed; There is under environmental corrosion resisting longer service life; Structure is simple, with low cost.
Self adaptation described in the utility model is anti-corrosion anchor pole, when ejector sleeve and stretching bar are subject to the contrary axial force in direction, stretching bar produces and extends.The axial force acted on ejector sleeve obtains radial and axial extruding component by changement, being acted on deformable body by roller makes it that plastic deformation occur, radial component makes hard block be stabilized in equilbrium position, and the amount of plastic deformation of push rod is certain, then the elongation constant airspeed of elongated portion.
When axial force changes, axial thrust load and radial component change thereupon, and axial thrust load makes elongation velocity variations, and radial component drives hard block to produce radial displacement, hinder elongation speed change, then the elongation speed of elongated portion keeps constant, has also namely automatically adapted to the change of external force.Stretching bar is out of shape with roll compacting formula with drawing type: together with ejector sleeve is bolted with bearing, and the hard block on bearing and bar compress, during external force F effect bar with manage relative motion vertically, make the soft layer generation local plastic deformation on stretching bar surface.
Accompanying drawing explanation
According to drawings and embodiments the utility model is described in further detail below.
Fig. 1 is the structure chart of the anti-corrosion anchor pole of self adaptation described in the utility model embodiment one.
Fig. 2 is Fig. 1 middle section schematic diagram.
Fig. 3 is the structure chart of the anti-corrosion anchor pole of self adaptation described in the utility model embodiment two.
Fig. 4 is Fig. 3 middle section schematic diagram.
Fig. 5 is the structure chart of the anti-corrosion anchor pole of self adaptation described in the utility model embodiment three.
Fig. 6 is Fig. 5 middle section schematic diagram.
Fig. 7 is the structure chart of the anti-corrosion anchor pole of self adaptation described in the utility model embodiment four.
Fig. 8 is Fig. 7 middle section schematic diagram.
Fig. 9 is the structure chart of the anti-corrosion anchor pole of self adaptation described in the utility model embodiment five.
Figure 10 is Fig. 9 middle section schematic diagram.
Figure 11 is the structure chart of the anti-corrosion anchor pole of self adaptation described in the utility model embodiment six.
Figure 12 is Figure 11 middle section schematic diagram.
Figure 13 is the structure chart of the anti-corrosion anchor pole of self adaptation described in the utility model embodiment seven.
Figure 14 is Figure 13 middle section schematic diagram.
Detailed description of the invention
As shown in Figure 1-2, the anti-corrosion anchor pole of self adaptation described in the utility model embodiment, comprise ejector sleeve 2, stretching bar 1 and supporting seat 3, described ejector sleeve 2 and supporting seat 3 are socketed in the outside of stretching bar 1, roller 4 is provided with between described ejector sleeve 2 and described supporting seat 3, it is inner that described roller 4 is positioned at described supporting seat 3, and described roller 4 is provided with multiple, even circumferential around described stretching bar 1 distributes, described roller 4 is arranged on the front end of described ejector sleeve, make described ejector sleeve when promoting to supporting seat direction, described roller or described ejector sleeve apply radial pressure to described stretching bar, described supporting seat is fixed by nut 5.
Preferably, described roller 4 is set to cylindrical roller, and corresponding described roller 4 is provided with the gathering sill 31 of gradually-reducing shape in described supporting seat inside; The pushing surface of described ejector sleeve front end is plane, and described roller is positioned in the pushing surface of described ejector sleeve front end; Corresponding described roller is provided with multiple longitudinal projection 12 in the external surface integration of described stretching bar, and each described front end of protruding 12 is set to ramp structure.
Further design is, described roller 4 is provided with four, and is positioned on same cross section.
As shown in Figure 3-4, the anti-corrosion anchor pole of self adaptation described in the utility model embodiment three, described roller 4 is set to cylindrical roller, and corresponding described roller is provided with the gathering sill of gradually-reducing shape in described supporting seat inside; The pushing surface of described ejector sleeve front end is plane, and described roller is positioned in the pushing surface of described ejector sleeve front end.
As seen in figs. 5-6, the anti-corrosion anchor pole of self adaptation described in the utility model embodiment three, described roller 4 is set to cylindrical roller, and described ejector sleeve is set to several the longitudinal fins be slidably matched with the bar that stretches by corresponding each described roller 4, inclined-plane is provided with in the front end of longitudinal fin, described roller coordinates with inclined-plane, and each roller is positioned among the roller locating slot of described supporting seat.
Fitting face between described longitudinal fin and described stretching bar is plane.
As Figure 7-8, the anti-corrosion anchor pole of self adaptation described in the utility model embodiment four, in the sidewall upper shed of described supporting seat, and be provided with commutation pull bar 6, described commutation pull bar 6 is coordinated with described roller 4 by fitting face 61, and described roller 4 is set to cylindrical roller, and the pushing surface of described ejector sleeve front end is plane, described roller is positioned in the pushing surface of described ejector sleeve front end, is provided with gland 7 in the outside of described commutation pull bar 6.
As shown in figs. 9-10, the anti-corrosion anchor pole of self adaptation described in the utility model embodiment five, the difference of itself and embodiment four is that described commutation pull bar 6 directly coordinates with described roller 4.
As depicted in figs. 11-12, the anti-corrosion anchor pole of self adaptation described in the utility model embodiment six, described roller 4 is set to cylindrical roller, and corresponding described roller 4 is provided with the gathering sill 31 of gradually-reducing shape in described supporting seat inside; The outer wall of described ejector sleeve is provided with the tooth 12 of several radial structures, and the front end of tooth is set to the surface of inclination, makes described ejector sleeve when driven forward, this surface and described rollers co-operate.
As illustrated in figs. 13-14, the anti-corrosion anchor pole of self adaptation described in the utility model embodiment seven, and be provided with gland 7, described gland 7 withstands on outside described roller 4, described roller 4 is set to spherical roller, and the outer wall of described ejector sleeve is provided with the tooth 12 of several radial structures, and the front end of tooth 12 is set to the surface of inclination, make described ejector sleeve when driven forward, this surface and described rollers co-operate.
In the above embodiment, the structure that described stretching bar adopts soft or hard to combine, be namely made up of two-layer to surface core, core is the material of high strength, and top layer is the soft material of high-ductility, easily plastic strain occurs during the power that is squeezed.Soft layer can be various shape projection, also can not need projection.Non-deformed part is high-strength material, selects high-strength steel etc. according to condition of work; Support set, mobile block and lever are hard material, operationally plastic strain and fracture do not occur.Surface adopts plastic material manufacture, and core bar adopts hard material manufacture.
Process that top layer is anti-corrosion: process in heat-treatment furnace, passes into water vapour or the ammonia of pressure 0.01-1MPa, at 400-600 DEG C of temperature, is incubated 0.1-2 hour.
Corrosion-resistant treatment method is softened on top layer: process in heat-treatment furnace, passes into the gaseous mixture of water vapour and hydrogen, water vapour pressure 0.01-1MPa, Hydrogen Vapor Pressure 0.01-1MPa.Stop hydrogen supply being incubated 1-10 hour at 400-900 DEG C of temperature after, at 400-600 DEG C of temperature, be incubated 0.1-2 hour.
Stretching bar by after hard roller, the local plastic deformation (soft layer or tooth) of the body that only deforms under depressing force effect, larger than the resistance of frictional rock bolt, but easilier than the body of rod whole generation plastic strain to realize; Possess large deformation and large drag simultaneously, and can adjust as required, the change of self adaptation external force and the elongation that remains a constant speed; There is under environmental corrosion resisting longer service life; Structure is simple, with low cost.
Claims (10)
1. the anti-corrosion anchor pole of self adaptation, comprise ejector sleeve, stretching bar and supporting seat, it is characterized in that, described ejector sleeve and supporting seat are socketed in the outside of stretching bar, roller is provided with between described ejector sleeve and described supporting seat, it is inner that described roller is positioned at described supporting seat, and described roller is provided with multiple, even circumferential around described stretching bar distributes, described roller is arranged on the front end of described ejector sleeve, make described ejector sleeve when promoting to supporting seat direction, described roller or described ejector sleeve apply radial pressure to described stretching bar; Described supporting seat is fixed by nut.
2. the anti-corrosion anchor pole of self adaptation as claimed in claim 1, it is characterized in that, described roller is set to cylindrical roller, and corresponding described roller is provided with the gathering sill of gradually-reducing shape in described supporting seat inside; The pushing surface of described ejector sleeve front end is plane, and described roller is positioned in the pushing surface of described ejector sleeve front end; Corresponding described roller is provided with multiple longitudinal projection in the external surface integration of described stretching bar, and the front end of each described projection is set to ramp structure.
3. the anti-corrosion anchor pole of self adaptation as claimed in claim 2, it is characterized in that, described roller is provided with four, and is positioned on same cross section.
4. the anti-corrosion anchor pole of self adaptation as claimed in claim 1, it is characterized in that, described roller is set to cylindrical roller, and described ejector sleeve is set to several the longitudinal fins be slidably matched with the bar that stretches by corresponding each described roller, inclined-plane is provided with in the front end of longitudinal fin, described roller coordinates with inclined-plane, and each roller is positioned among the roller locating slot of described supporting seat.
5. the anti-corrosion anchor pole of self adaptation as claimed in claim 4, it is characterized in that, the fitting face between described longitudinal fin and described stretching bar is plane.
6. the anti-corrosion anchor pole of self adaptation as claimed in claim 1, it is characterized in that, in the sidewall upper shed of described supporting seat, and be provided with commutation pull bar, described commutation pull bar and described rollers co-operate, described roller is set to cylindrical roller, and the pushing surface of described ejector sleeve front end is plane, and described roller is positioned in the pushing surface of described ejector sleeve front end.
7. the anti-corrosion anchor pole of self adaptation as claimed in claim 1, it is characterized in that, described roller is set to cylindrical roller, and corresponding described roller is provided with the gathering sill of gradually-reducing shape in described supporting seat inside; The outer wall of described ejector sleeve is provided with the tooth of several radial structures, and the front end of tooth is set to the surface of inclination, makes described ejector sleeve when driven forward, this surface and described rollers co-operate.
8. the anti-corrosion anchor pole of self adaptation as claimed in claim 1, it is characterized in that, described roller is set to cylindrical roller, and corresponding described roller is provided with the gathering sill of gradually-reducing shape in described supporting seat inside; The pushing surface of described ejector sleeve front end is plane, and described roller is positioned in the pushing surface of described ejector sleeve front end.
9. the anti-corrosion anchor pole of self adaptation as claimed in claim 1, it is characterized in that, in the sidewall upper shed of described supporting seat, and being provided with gland, described gland withstands on outside described roller, and described roller is set to spherical roller, the outer wall of described ejector sleeve is provided with the tooth of several radial structures, and the front end of tooth is set to the surface of inclination, make described ejector sleeve when driven forward, this surface and described rollers co-operate.
10. the self adaptation as described in any one of claim 1 to 9 is anti-corrosion anchor pole, is characterized in that, the surface of described stretching bar adopts plastic material manufacture, and core bar adopts hard material manufacture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520291897.8U CN204572031U (en) | 2015-05-07 | 2015-05-07 | Self adaptation is anti-corrosion anchor pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520291897.8U CN204572031U (en) | 2015-05-07 | 2015-05-07 | Self adaptation is anti-corrosion anchor pole |
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| Publication Number | Publication Date |
|---|---|
| CN204572031U true CN204572031U (en) | 2015-08-19 |
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|---|---|---|---|
| CN201520291897.8U Withdrawn - After Issue CN204572031U (en) | 2015-05-07 | 2015-05-07 | Self adaptation is anti-corrosion anchor pole |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104775838A (en) * | 2015-05-07 | 2015-07-15 | 山东科技大学 | Self-adapting corrosion-proof anchor rod |
| CN107740702A (en) * | 2017-11-14 | 2018-02-27 | 缪协兴 | A kind of pressure-release anchor cable |
| CN107747500A (en) * | 2017-11-14 | 2018-03-02 | 缪协兴 | A kind of pressure-relieving achor bar |
| CN118148685A (en) * | 2024-05-09 | 2024-06-07 | 山西省交通建设工程质量检测中心（有限公司） | NPR reinforcing and monitoring device for soft rock tunnel safety |
-
2015
- 2015-05-07 CN CN201520291897.8U patent/CN204572031U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104775838A (en) * | 2015-05-07 | 2015-07-15 | 山东科技大学 | Self-adapting corrosion-proof anchor rod |
| CN107740702A (en) * | 2017-11-14 | 2018-02-27 | 缪协兴 | A kind of pressure-release anchor cable |
| CN107747500A (en) * | 2017-11-14 | 2018-03-02 | 缪协兴 | A kind of pressure-relieving achor bar |
| CN107740702B (en) * | 2017-11-14 | 2024-07-19 | 江苏政兴矿业科技发展有限公司 | Yielding anchor cable |
| CN107747500B (en) * | 2017-11-14 | 2024-09-03 | 江苏政兴矿业科技发展有限公司 | Yielding anchor rod |
| CN118148685A (en) * | 2024-05-09 | 2024-06-07 | 山西省交通建设工程质量检测中心（有限公司） | NPR reinforcing and monitoring device for soft rock tunnel safety |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150819 Effective date of abandoning: 20170822 |