CN203096737U - Automatic anchoring device - Google Patents
Automatic anchoring device Download PDFInfo
- Publication number
- CN203096737U CN203096737U CN 201220458422 CN201220458422U CN203096737U CN 203096737 U CN203096737 U CN 203096737U CN 201220458422 CN201220458422 CN 201220458422 CN 201220458422 U CN201220458422 U CN 201220458422U CN 203096737 U CN203096737 U CN 203096737U
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- Prior art keywords
- sleeve
- barrel
- memorial alloy
- alloy bar
- memory alloy
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Abstract
The utility model belongs to the technical field of rock engineering, and specifically relates to an automatic anchoring device. The automatic anchoring device is characterized by comprising a memory alloy rod and a sleeve, wherein the shape of the memory alloy rod is a cylinder, and the diameters of the two ends of the cylinder are larger than the diameter of the middle part of the cylinder; openings are arranged inside the two ends of the sleeve, the memory alloy rod can pass through the openings, the sleeve wall of the middle part of the sleeve is equidistantly cut into strips in the generatrix direction of the cylinder, and the memory alloy rod passes through the middle part of the sleeve. The automatic anchoring device disclosed by the utility model can carry out the anchorage by utilizing the shape memory effect and the self-sensing characteristic of the memory alloy and utilizing the driving force of the memory alloy, so that the problem of the reduction in the anchorage force caused by the fact that the combination of an anchored part of a traditional anchoring rod and a rock drill hole is invalid is avoided; and the reduction in the anchorage force of the automatic anchoring device in the rock drill hole caused by the self deformation and breakage of the rock drill hole does not occur, so that the anchorage support is stable, the anchorage force is large, and the automatic anchoring device has wider application prospect in the rock engineering field.
Description
Technical field
The invention belongs to the geotechnical engineering technical field, be specifically related to a kind of automatic anchor device.
Background technology
Along with development of civil engineering, civil engineering more and more develops towards intelligentized direction, the use of intellectual material has been subjected to increasing attention, wherein memorial alloy is a kind of important and use widely used intellectual material, compare with traditional civil engineering material, it has self-sensing properties and shape memory effect, and good mechanical performance, has the intensity height, advantages such as lighter weight.In the widely used anchoring support of geotechnical engineering, the anchored force of supporting is along with the decline of time is the important function that makes the anchoring support structural failure, especially in dynamic country rock environment, traditional bonded anchoring and mechanical type are anchored at when being used for the dynamic country rock of this complexity, and anchored force was often had a greatly reduced quality owing to the coagulating agent after solidifying or mechanical type anchored end lose efficacy with contacting of rock-boring.The present invention utilizes the shape memory effect and the self-sensing properties of marmem, give full play to the shape of memorial alloy and recover driving force, at the technical deformation characteristic of giving full play to memorial alloy of the support anchoring of geotechnical engineering, make that anchored force can not reduce to make anchoring to lose efficacy under dynamic environment, thereby safeguard the stable of supporting and protection structure.
Summary of the invention
Task of the present invention is to be to provide a kind of automatic anchor device.The present invention utilizes the intelligent drives effect of memorial alloy in anchor device to solve traditional anchorage style to lose efficacy, the problem that anchored force descends, have simple in structure, anchored force big and anchored force can not be subjected to the influence of dynamic country rock and advantage such as reduce.
Its technical solution is:
The automatic anchor device that the present invention proposes, it is characterized in that comprising: memorial alloy bar and sleeve, wherein memorial alloy bar two ends have the cylinder of diameter greater than the middle part shank diameter, inside, sleeve two ends is useful on the perforate that the memorial alloy bar passes, and the barrel at sleeve middle part equidistantly cuts into strip along cylindrical generatrix direction.
Among the present invention, being shaped as of described memorial alloy bar, the bar stage casing such as is at thick cylinder, there is diameter at two ends greater than the interlude body of rod and greater than the cylinder of the diameter of the perforate at sleeve two ends.The diameter of cylindrical diameter of interlude and the perforate of sleeve two ends is complementary.
Among the present invention, described sleeve global shape is the two ends symmetry, wherein and the two ends of the barrel of each strip still with intact linking to each other of uncut barrel of front and back.Strip barrel intermediary outside has horizontal groove, laterally groove acts on the boring rock mass on every side, increase the friction factor between sleeve and the rock, there is horizontal depression rag in each strip barrel two ends outside portion, laterally rag is used to reduce the outwardly-bent rigidity of strip barrel herein, make the strip barrel outwardly-bent easily herein, in horizontal inside, two ends, groove position horizontal depression rag is arranged, this horizontal rag is used for reducing the rigidity that curves inwardly of strip barrel herein, makes the strip barrel curve inwardly easily herein.There is screw thread at the sleeve two ends in the chamber, are used for connecting other materials, and its throat has diameter to equal the perforate of the cylindrical diameter in memorial alloy bar middle part, makes the large cylinder at memorial alloy bar two ends just in time be stuck in the throat at sleeve two ends.
Beneficial effect of the present invention is:
Automatic anchor device of the present invention be use as the anchoring section of anchor pole and indented bars, pallet, nut form whole anchoring system.Connecting thread by on the inwall of automatic anchor device two ends can be connected to form the anchor pole with a plurality of anchoring sections with indented bars, for the supporting than the country rock of gun drilling, pressure from surrounding rock control can be distributed in each anchoring section.
Automatic anchor device provided by the invention, its automatic anchor device can be adjusted the size of sleeve middle part ridge to the rock-boring active force according to the distortion and the rock mechanics properties intelligence of the country rock of holing automatically, thereby keep anchored force can not reduce, shape memory effect and the self-sensing properties of having given full play to memorial alloy make anchoring support keep stable.And simple and reliable for structure, cost is lower, in the geotechnical engineering field more wide application prospect is arranged.
Description of drawings
Fig. 1 is a working state schematic representation of the present invention.
Fig. 2 is a sectility schematic diagram of the present invention.
Fig. 3 is a front elevation drawing of the present invention.
Fig. 4 is the 1-1 sectional drawing of Fig. 3 of the present invention.
Fig. 5 is the 2-2 sectional drawing of Fig. 3 of the present invention.
Fig. 6 is the side view of Fig. 3 of the present invention.
Fig. 7 is the form processing figure of memorial alloy bar of the present invention.
Among the figure: 1. memorial alloy bar, 2. sleeve, 3. indented bars, 4. pallet, 5. nut.
The specific embodiment
Further specify the present invention below in conjunction with accompanying drawing.
Embodiment 1: shown in Fig. 1-7, automatic anchor device of the present invention comprises: memorial alloy bar 1, sleeve 2.Memorial alloy bar 1 be processed into two ends have diameter greater than body of rod middle part than short cylinder.Sleeve 2 global shapes are the two ends symmetry, and the barrel at its middle sleeve 2 middle parts equidistantly cuts along generatrix direction, form width, strip that length is identical, and the two ends of the barrel of each strip still with intact linking to each other of uncut barrel of front and back.Strip barrel intermediary outside has horizontal groove 201, in the outside at the two ends of each strip barrel horizontal depression rag 202 is arranged,, there is horizontal depression rag 203 inside at the two ends in horizontal groove 201 zones at strip barrel middle part.Sleeve has screw thread in the 2 whole two ends, the perforate that has the cylindrical diameter of diameter and memorial alloy bar 1 middle part to be complementary in the middle of the throat of two ends.
At first, memorial alloy bar 1 is processed, below the martensite distortion beginning temperature Ms (selecting for use critical-temperature to be higher than the memory alloy material of environment temperature) of memorial alloy, memorial alloy bar 1 is stretched to length greater than the needed length of installing (less than the maximum strain rate).Then memorial alloy bar 1 is put into sleeve 2, the cylinder with large diameter at memorial alloy bar 1 two ends is stuck in the two ends of sleeve 2, after sleeve 2 is installed, forms an integral body.Screw thread by two ends on the sleeve 2 is connected with other materials again.Inside at sleeve 2, the placed around temperature control heating device of memorial alloy bar 1, can heat memorial alloy bar 1 to the interior a certain temperature of specified scope, when rising to the covert temperature of beginning of memorial alloy by the temperature that makes memorial alloy bar 1 then, martensite in the memorial alloy bar 1 changes to austenite, the shape of memorial alloy bar 1 changes towards memorized shape simultaneously, continuous increase along with austenitic content, it is increasing that shape is recovered, memorial alloy bar 1 is shorter and shorter, the two ends of pulling sleeve 2 in sleeve 2, make sleeve 2 middle parts outwards swell, form the structure of a lantern shape, the rock on the drill hole wall of nipping of the horizontal groove 201 on the sleeve 2 middle part outer walls, the strip barrel is compressed between rock-boring and the anchor pole.When the boring country rock of anchor device changes automatically in running order, automatically anchor device at first can utilize the elastic energy of storage, the deflection that changes automatic anchor device descends to prevent certain anchored force, adopt simultaneously by attemperating unit and can heat up again memorial alloy bar 1, increase austenitic content in the memorial alloy bar 1, to strengthen the distortion of automatic anchor device, keep the size of anchored force.
Claims (3)
1. automatic anchor device is characterized in that comprising:
Memorial alloy bar (1), memorial alloy bar (1) profile are that two ends have the cylinder of diameter greater than the middle part shank diameter;
Sleeve (2), sleeve (2) inside, two ends is useful on the perforate that the memorial alloy bar passes, and the barrel at sleeve (2) middle part equidistantly cuts into strip along cylindrical generatrix direction.
2. according to right 1 described automatic anchor device, it is characterized in that: the bar cylindrical diameter in middle part of described memorial alloy bar (1) and the diameter of sleeve (2) two ends perforate are complementary.
3. according to right 1 described automatic anchor device, it is characterized in that: described sleeve (2) global shape two ends symmetry, the width length of the barrel that cuts into strip at its middle sleeve (2) middle part is identical, and the two ends of the barrel of each strip still with intact linking to each other of uncut barrel of front and back, each strip barrel intermediary outside has horizontal groove, there is horizontal depression rag the outside of each strip barrel two ends and undivided barrel junction and horizontal inside, two ends, groove position, on the inwall of sleeve (2) two ends screw thread is arranged, the perforate that has the cylindrical diameter in diameter and memorial alloy bar (1) middle part to be complementary in the middle of the both ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220458422 CN203096737U (en) | 2012-09-02 | 2012-09-02 | Automatic anchoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220458422 CN203096737U (en) | 2012-09-02 | 2012-09-02 | Automatic anchoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203096737U true CN203096737U (en) | 2013-07-31 |
Family
ID=48848154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220458422 Expired - Fee Related CN203096737U (en) | 2012-09-02 | 2012-09-02 | Automatic anchoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203096737U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102839663A (en) * | 2012-09-02 | 2012-12-26 | 山东科技大学 | Automatic anchor device and application method thereof |
| CN113215997A (en) * | 2021-05-19 | 2021-08-06 | 赵启林 | Composite material prestress tension anchoring method and system based on shape memory alloy |
-
2012
- 2012-09-02 CN CN 201220458422 patent/CN203096737U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102839663A (en) * | 2012-09-02 | 2012-12-26 | 山东科技大学 | Automatic anchor device and application method thereof |
| CN102839663B (en) * | 2012-09-02 | 2015-08-19 | 山东科技大学 | Automatic anchor device and application process thereof |
| CN113215997A (en) * | 2021-05-19 | 2021-08-06 | 赵启林 | Composite material prestress tension anchoring method and system based on shape memory alloy |
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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: 20130731 Termination date: 20180902 |