CN109655603B - Self-collecting clamp for electromagnetic self-healing after splitting of asphalt mixture test piece - Google Patents
Self-collecting clamp for electromagnetic self-healing after splitting of asphalt mixture test piece Download PDFInfo
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- CN109655603B CN109655603B CN201910044214.1A CN201910044214A CN109655603B CN 109655603 B CN109655603 B CN 109655603B CN 201910044214 A CN201910044214 A CN 201910044214A CN 109655603 B CN109655603 B CN 109655603B
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Abstract
The invention discloses a self-collecting clamp for electromagnetic self-healing of an asphalt mixture test piece after splitting, which comprises a middle frame, wherein rectangular through grooves are formed in the top end and the bottom end of the middle frame, the left side and the right side of the top end of the middle frame are connected with an upper box clamp through a top torsion spring, the left side and the right side of the bottom end of the middle frame are connected with a lower box clamp corresponding to the upper box clamp through a bottom torsion spring, a trigger rod through groove is formed in the upper box clamp, and a trigger rod turning groove is formed in the lower box clamp. The accuracy of the splitting test data result of the asphalt mixture test piece is influenced.
Description
Technical Field
The invention belongs to the technical field of asphalt pavement performance testing, and particularly relates to a self-collecting clamp for electromagnetic self-healing of an asphalt mixture test piece after splitting.
Background
The asphalt pavement can generate cracks, looseness and other diseases under the action of long-term driving load, temperature stress, reflection cracks of a semi-rigid base layer and other factors. And the existing polymer materials for maintaining and repairing the asphalt pavement, such as a waterproof agent, an asphalt regenerant and the like, can affect the maintenance cost and the use of the pavement to different degrees. However, the asphalt pavement has the self-healing capacity and can be self-healed at normal temperature, and the asphalt pavement can repair the defects of crack loosening and the like of the asphalt concrete pavement caused by low temperature, fatigue and base reflection through the self-healing, so that the service life of the asphalt concrete pavement can be prolonged, the maintenance and repair of the pavement are reduced, and the economic and traffic benefits are brought. However, since the self-healing speed of the asphalt pavement is very slow in a natural state and no circulation action of a traffic load is required outside, the repair rate of the asphalt is improved when the binder in the asphalt mixture is subjected to high temperature in an intermittent period. Compared with the repair measures such as a sealant and the like, the self-healing technology of the asphalt concrete pavement does not bring negative effects such as anti-skid performance and the like to the repair of the pavement. Therefore, domestic and foreign scholars widely develop researches on the induction heating self-healing technology of the asphalt pavement, and the researches do not leave a large number of indoor experiments, and certainly do not leave experimental devices for simulating the electromagnetic induction self-healing of the asphalt pavement.
At present, when the actual asphalt pavement electromagnetic induction self-healing is simulated through the splitting and the healing of the asphalt mixture test piece, the original state of the test piece is restored through manual collection and combination after the asphalt mixture test piece is broken, but the degree of restoration is not high, the internal crack has great difference with the actual condition, and the accuracy of the splitting experimental result data of the asphalt mixture test piece is influenced. Meanwhile, when a re-crushing and re-healing circular experiment is carried out, the steps are complicated and inconvenient.
Disclosure of Invention
The invention aims to provide a self-collecting clamp for electromagnetic self-healing of an asphalt mixture test piece after splitting, which solves the problem that manual collection is inconvenient after the existing asphalt mixture test piece is split.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a self-collecting anchor clamps that electromagnetism self-healing after bituminous mixture test piece splitting, includes the middle part frame, its characterized in that: the rectangle leads to the groove has all been seted up to the top and the bottom of middle part frame, the top left and right sides of middle part frame is connected with through top torque spring and goes up the box clamp, the bottom left and right sides of middle part frame is connected with through bottom torque spring and presss from both sides corresponding lower box with last box clamp, the trigger bar leads to the groove has been seted up to the inside of going up the box clamp, the trigger bar groove of transferring has been seted up to the inside of lower box clamp, the inboard in trigger bar groove of transferring is connected with the trigger bar through the pivot.
Preferably, the inner sides of the upper box clamp and the lower box clamp are adhered with heat-resistant sponge.
Preferably, the middle frame is configured as a rectangular frame-shaped structure.
Preferably, the trigger rod is provided with a light hard glue stick.
Preferably, the two sides of the inside of the through groove of the trigger rod are connected with positioning rods through rotating shafts, and the tail ends of the positioning rods are provided with smooth micro-arc plates.
Preferably, the side surfaces of the upper box clamp and the lower box clamp are provided with torsion spring mounting and positioning circular grooves.
Preferably, the upper box clamp and the lower box clamp are both heat-resistant box body structures.
Preferably, the inner side of the middle frame is adhered with a heat-resistant sponge strip.
Preferably, one end of the top torsion spring is fixed on the inner side of the upper box clamp, and the other end of the top torsion spring is fixed on the inner side of the middle frame.
Preferably, all parts of the clamp are made of non-electromagnetic induction materials.
Compared with the prior art, the invention has the following beneficial effects:
(1) according to the invention, through the structural design, the self-collection of the test piece fragments is realized, and the problems that the test piece fragments are inconvenient to collect manually after the cleavage experiment, the test piece fragments are difficult to collect, and the integrity and the reduction degree of the test piece are not high are solved.
(2) The invention solves the problem that after the traditional test piece is split, the splitting experiment can not be completed again when the die for collecting the broken test piece is not demoulded after the test piece is heated and healed. This experiment anchor clamps possess and relapse the function of automatic collection splitting experiment back test piece and fragment under the condition of not taking off the mould, and after the self-healing, the mould splitting experiment is not taken off in the circulated, and the experimental step is convenient quick, and time benefit is obvious very much.
(3) According to the invention, the self-collection of the fragments of the test piece is realized through the clamp, the quality loss of the asphalt mixture during the collection of the crushed test piece is reduced, the integrity of the test piece is higher, the reduction effect is better, the healing degree after electromagnetic heating is more practical, the experimental error is reduced, the experimental result is more accurate and precise, and the problem that the accuracy of the splitting experimental result of the asphalt mixture test piece is influenced due to the poor manual collection effect is avoided.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a perspective view of the present invention;
FIG. 3 is an enlarged view of area A of the present invention;
FIG. 4 is a side view of the present invention;
FIG. 5 is an external view of the present invention;
FIG. 6 is a schematic view of a bead placement method of the present invention;
fig. 7 is a schematic view of electromagnetic heating according to the present invention.
In the figure: 1-upper box clamp, 2-middle frame, 3-top torsion spring, 4-trigger bar, 5-heat-resistant sponge, 6-rectangular through groove, 7-trigger bar through groove, 8-trigger bar turning-out groove, 9-lower box clamp, 10-heat-resistant sponge strip, 11-bottom torsion spring, 12-positioning bar and 13-smooth micro-arc plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, the present invention provides the following technical solutions: the utility model provides a self-collecting anchor clamps that electromagnetism self-healing after bituminous mixture test piece splitting, includes middle part frame 2, its characterized in that: the rectangle has all been seted up on the top and the bottom of middle part frame 2 and has been led to groove 6, the top left and right sides of middle part frame 2 is connected with box clamp 1 through top torque spring 3, the bottom left and right sides of middle part frame 2 is connected with through bottom torque spring 11 and presss from both sides 1 corresponding lower box clamp 9 with last box, go up the inside of box clamp 1 and seted up the trigger bar and lead to groove 7, the inside of lower box clamp 9 has been seted up the trigger bar and has been changeed out groove 8, the inboard that the trigger bar changes out groove 8 is connected with trigger bar 4 through the pivot.
The inner sides of the upper box clamp 1 and the lower box clamp 9 are adhered with heat-resistant sponge 5.
The trigger bar 4 is set as a light hard glue stick.
The inside both sides that the trigger bar led to the groove 7 are connected with locating lever 12 through the pivot, and the end of locating lever 12 is provided with smooth little arc board 13.
The side surfaces of the upper box clamp 1 and the lower box clamp 9 are both provided with a torsion spring mounting and positioning circular groove.
The upper box clamp 1 and the lower box clamp 9 are both heat-resistant box body structures.
The inner side of the middle frame 2 is pasted with a heat-resistant sponge strip 10.
One end of the top torsion spring 3 is fixed at the inner side of the upper box clamp 1, and the other end of the top torsion spring 3 is fixed at the inner side of the middle frame 2.
All parts of the clamp are made of non-electromagnetic induction materials.
The working principle and the using process of the invention are as follows:
example (b): when the invention is used, a user opens the upper box clamp 1 and the lower box clamp 9, puts a Marshall test piece into the clamp, because the shell body loses the action of external force and is closed, opens the upper box clamp 1 and the lower box clamp 9 again, the user can rotate the positioning rod 12, so that the smooth micro-arc plate 13 at the tail end of the positioning rod 12 is perpendicular to the trigger rod 4, rotates the trigger rod 4, abuts the upper end of the trigger rod 4 to the middle of the smooth micro-arc plate 13, uses the trigger rod 4 to keep the upper box clamp 1 and the lower box clamp 9 in an open state, places the test piece in the middle frame 2, extends the pressing strip on the splitting experimental instrument into the rectangular through groove 6, fixes the clamp, starts the splitting experiment, as shown in figure 6, the test piece is damaged, can press the trigger rod 4, so that the upper point contact of the trigger rod 4 is disconnected, the trigger rod 4 rotates out of the trigger rod through groove 7 and the trigger rod out of the through groove 8, closes the, the test piece together with the jig was taken out and placed on an electromagnetic heating coil for a heat healing experiment, as shown in fig. 7.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a self-collecting anchor clamps that electromagnetism self-healing after bituminous mixture test piece splitting, includes middle part frame (2), its characterized in that: the rectangle has all been seted up on the top and the bottom of middle part frame (2) and has been led to groove (6), the top left and right sides of middle part frame (2) is connected with box clamp (1) through top torsion spring (3), the bottom left and right sides of middle part frame (2) is connected with through bottom torsion spring (11) and presss from both sides (1) corresponding lower box clamp (9) with last box, go up the inside that box clamp (1) and seted up trigger bar and lead to groove (7), trigger bar escape groove (8) have been seted up to the inside that lower box clamp (9), the inboard that trigger bar escape groove (8) is connected with trigger bar (4) through the pivot.
2. The self-collecting clamp for the electromagnetic self-healing after the splitting of the asphalt mixture test piece according to claim 1, is characterized in that: the inner sides of the upper box clamp (1) and the lower box clamp (9) are adhered with heat-resistant sponge (5).
3. The self-collecting clamp for the electromagnetic self-healing after the splitting of the asphalt mixture test piece according to claim 1, is characterized in that: the middle frame (2) is of a rectangular frame-shaped structure.
4. The self-collecting clamp for the electromagnetic self-healing after the splitting of the asphalt mixture test piece according to claim 1, is characterized in that: the trigger rod (4) is set to be a light hard rubber rod.
5. The self-collecting clamp for the electromagnetic self-healing after the splitting of the asphalt mixture test piece according to claim 1, is characterized in that: the trigger bar is characterized in that two sides of the inside of the through groove (7) of the trigger bar are connected with a positioning rod (12) through a rotating shaft, and the tail end of the positioning rod (12) is provided with a smooth micro-arc plate (13).
6. The self-collecting clamp for the electromagnetic self-healing after the splitting of the asphalt mixture test piece according to claim 1, is characterized in that: and the side surfaces of the upper box clamp (1) and the lower box clamp (9) are provided with torsion spring mounting and positioning circular grooves.
7. The self-collecting clamp for the electromagnetic self-healing after the splitting of the asphalt mixture test piece according to claim 1, is characterized in that: the upper box clamp (1) and the lower box clamp (9) are both of heat-resistant box body structures.
8. The self-collecting clamp for the electromagnetic self-healing after the splitting of the asphalt mixture test piece according to claim 1, is characterized in that: and a heat-resistant sponge strip (10) is attached to the inner side of the middle frame (2).
9. The self-collecting clamp for the electromagnetic self-healing after the splitting of the asphalt mixture test piece according to claim 6, is characterized in that: one end of the top end torsion spring (3) is fixed on the inner side of the upper box clamp (1), and the other end of the top end torsion spring (3) is fixed on the inner side of the middle frame (2).
10. The self-collecting clamp for the electromagnetic self-healing after the splitting of the asphalt mixture test piece according to claim 1, is characterized in that: all parts of the clamp are made of non-electromagnetic induction materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910044214.1A CN109655603B (en) | 2019-01-17 | 2019-01-17 | Self-collecting clamp for electromagnetic self-healing after splitting of asphalt mixture test piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910044214.1A CN109655603B (en) | 2019-01-17 | 2019-01-17 | Self-collecting clamp for electromagnetic self-healing after splitting of asphalt mixture test piece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109655603A CN109655603A (en) | 2019-04-19 |
| CN109655603B true CN109655603B (en) | 2021-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910044214.1A Active CN109655603B (en) | 2019-01-17 | 2019-01-17 | Self-collecting clamp for electromagnetic self-healing after splitting of asphalt mixture test piece |
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| CN (1) | CN109655603B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1793829A (en) * | 2005-12-26 | 2006-06-28 | 长安大学 | Low temperature cracking test instrument of asphalt mixture |
| ES2395017A1 (en) * | 2011-05-24 | 2013-02-07 | Ditecpesa, S.A. | Device for the measurement of properties of fluency in processes of compacting solid-fluid mixtures. (Machine-translation by Google Translate, not legally binding) |
| CN202770718U (en) * | 2012-09-07 | 2013-03-06 | 郑州大学 | Fiber asphalt mixture low-temperature splitting test device |
| CN202814795U (en) * | 2012-09-29 | 2013-03-20 | 长安大学 | Detection device for self-healing of bituminous mortar |
| CN203758830U (en) * | 2014-02-14 | 2014-08-06 | 中国长江三峡集团公司 | Fixture for detecting concrete splitting tensile strength |
| CN205449656U (en) * | 2015-12-31 | 2016-08-10 | 长安大学 | A multifunction clamp that is used for testing fast marshall stability and freeze thawing splitting strength |
| CN206146740U (en) * | 2016-11-02 | 2017-05-03 | 山西省交通科学研究院 | Bituminous mixture freeze -thaw split test anchor clamps |
| CN207502279U (en) * | 2017-11-27 | 2018-06-15 | 宁波市新铭建设工程测试有限公司 | Marshall stability test instrument |
-
2019
- 2019-01-17 CN CN201910044214.1A patent/CN109655603B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1793829A (en) * | 2005-12-26 | 2006-06-28 | 长安大学 | Low temperature cracking test instrument of asphalt mixture |
| ES2395017A1 (en) * | 2011-05-24 | 2013-02-07 | Ditecpesa, S.A. | Device for the measurement of properties of fluency in processes of compacting solid-fluid mixtures. (Machine-translation by Google Translate, not legally binding) |
| CN202770718U (en) * | 2012-09-07 | 2013-03-06 | 郑州大学 | Fiber asphalt mixture low-temperature splitting test device |
| CN202814795U (en) * | 2012-09-29 | 2013-03-20 | 长安大学 | Detection device for self-healing of bituminous mortar |
| CN203758830U (en) * | 2014-02-14 | 2014-08-06 | 中国长江三峡集团公司 | Fixture for detecting concrete splitting tensile strength |
| CN205449656U (en) * | 2015-12-31 | 2016-08-10 | 长安大学 | A multifunction clamp that is used for testing fast marshall stability and freeze thawing splitting strength |
| CN206146740U (en) * | 2016-11-02 | 2017-05-03 | 山西省交通科学研究院 | Bituminous mixture freeze -thaw split test anchor clamps |
| CN207502279U (en) * | 2017-11-27 | 2018-06-15 | 宁波市新铭建设工程测试有限公司 | Marshall stability test instrument |
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| CN109655603A (en) | 2019-04-19 |
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