CN107179400A - A kind of asphalt mixture in track test device - Google Patents
A kind of asphalt mixture in track test device Download PDFInfo
- Publication number
- CN107179400A CN107179400A CN201710289286.3A CN201710289286A CN107179400A CN 107179400 A CN107179400 A CN 107179400A CN 201710289286 A CN201710289286 A CN 201710289286A CN 107179400 A CN107179400 A CN 107179400A
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- asphalt mixture
- test device
- main shaft
- main body
- rubber roll
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/42—Road-making materials
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
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- Analytical Chemistry (AREA)
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- General Health & Medical Sciences (AREA)
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of asphalt mixture in track test device, including there is provided the temperature controlled structure of controlling temperature of body interior for the main body of sealing structure；Body interior is provided with main shaft there is provided the motor of main axis, is uniformly connected with multiple hydraulic connecting rods on main shaft, the end of hydraulic connecting rod is connected with rubber roll, and the fixing device for fixing test specimen is provided with immediately below main shaft；The frequency modulation gearbox of controlled motor motion frequency is wherein additionally provided with main body.The present apparatus eliminates the design of balancing weight, solves because of a series of problems caused by balancing weight, and can carry out temperature adjustment, realizes experiment at different temperatures.
Description
Technical field
The invention belongs to bituminous paving experimental technique field, it is related to a kind of asphalt mixture in track test device.
Background technology
Asphalt is domestic and international high-grade highway or the conventional ground surface material of other carriage ways, and because pitch is mixed
It is viscoelasto-plastic material to close material, and obvious groove, i.e. rut can be produced in high temperature or heavy traffic.Serious rut can shadow
Ring travel safety and comfortableness.So, the anti-rut behavior of asphalt is measured and evaluation is very important.
The asphalt mixture in track test equipment used both at home and abroad at present is generally using the examination of reciprocating asphalt compound rut
Machine is tested, it mainly rolls motion to obtain rut by reciprocal wheel load, pitch mixing is measured finally according to the depth of rut
The performance of material.In order to which actual simulation produces the environment of rut, it is to avoid dimensional effect, it can be typically placed above in rubber tire system
Some pieces of balancing weights, according to configuration balancing weight number simulate the wheel tracking test under different pressures, so as to carry out constant asphalt road
Performance indications of the face under different bearer.There is following problem in current wheel rutting test machine：(1) balancing weight tested
Heavier, the fetching process for carrying out balancing weight is very frequent, so both wastes time and energy, nor very safe；(2) existing dress
Put and use reciprocating, because counterweight is larger, for security consideration, simulation asphalt that can not be completely not
Actual state under same frequency effect, the experiment of especially higher frequency；(3) spliced balancing weight can only be on test interval
Fixed point is chosen, and can not carry out testing the test of any counterweight in interval scope, the application of testing machine is limited；
(4) because existing mechanism takes reciprocating, rubber tire is very big plus the weight of balancing weight, and inertia force is very big, easily causes
Mechanical fatigue is damaged, and consumption mass energy；(5) existing rut experiment is to carry out at room temperature, it is difficult to simulate different temperatures
Under wheel tracking test, it is also very inaccurate even if there is heating facility.
The content of the invention
It is an object of the invention to provide a kind of asphalt mixture in track test device；The present apparatus eliminates setting for balancing weight
Meter, is solved because of a series of problems caused by balancing weight, and can carry out temperature adjustment.
The purpose of the present invention is achieved through the following technical solutions：
This asphalt mixture in track test device, including the main body of sealing structure are temperature controlled there is provided body interior
Structure of controlling temperature；Body interior is provided with main shaft, the output end connection of main shaft and motor, main shaft and is uniformly connected with multiple hydraulic pressure companies
Bar, the end of hydraulic connecting rod is connected with rubber roll, and the fixing device for fixing test specimen is provided with immediately below main shaft；Wherein
The frequency modulation gearbox of controlled motor motion frequency is additionally provided with main body.
Further, the features of the present invention is also resided in：
Wherein structure of controlling temperature includes the heating wire radiator for being arranged on body interior.
Wherein structure of controlling temperature also includes being arranged on refrigeration compressor and the condensation that body exterior is connected with heating wire radiator
Device.
The end of wherein hydraulic connecting rod is connected by spring with rubber roll.
Wherein rubber roll is fixed by rubber roll support, and rubber roll support is connected with spring.
The spindle carrier of fixed main shaft is wherein connected with main shaft.
Wherein fixing device, which includes being arranged on, is provided with the test platform immediately below main shaft, test platform for fixed examination
The nut of part.
Wherein control display screen and control button are provided with frequency modulation gearbox.
The angle that wherein hydraulic connecting rod is provided between 4, and two neighboring hydraulic connecting rod is 90 °.
Compared with prior art, the beneficial effects of the invention are as follows：The device eliminates the design of balancing weight, is connected using hydraulic pressure
Bar carries out counterweight setting, so that the balancing weight fetching process for solving original experiment is very frequent, it is bothersome laborious, it is not to pacify very much
Full the problem of；The present apparatus realizes that unidirectional turn is rolled using rubber roll, so that the complete simulation asphalt mixture that realizes exists
Actual state under different frequency, especially in the experiment of upper frequency；The present apparatus is reinforced using hydraulic way, can
The convenient all standing realized in measurement range, the problem of solving due to balancing weight limit assay machine application；The present apparatus
The one direction for driving rubber roll using main axis rolls mode, compared to the reciprocating of prior art, reduces machine
Tool fatigue damage, the energy is more saved by inertia；The present apparatus uses enclosed main body, and controls master using structure of controlling temperature
Internal temperature, can be good at model test environment；The present apparatus is also capable of the rotation speed of controlled motor using frequency modulation gearbox
Rate, so as to control the rolling number of times of rubber roll, improves the precision of experiment compared with the existing simple number of times by rolling.
Further, it is implemented in combination with controlling body interior using heating wire radiator, refrigeration compressor and condenser
Temperature, can make the test temperature of body interior reach required standard, can be good at Control experiment temperature, make test temperature
Scope is wider.
Further, rubber roll is connected by spring and rubber roll support, when can make the rolling of rubber roll
With more preferable elastic force.
Further, spindle carrier fixed main shaft, makes main axis process more consolidate.
Further, test specimen is fixed by nut on test platform, test specimen is not slided during experiment.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Fig. 2 is the structural representation at rubber roll in the present invention；
Fig. 3 is frequency modulation gearbox designs schematic diagram in the present invention.
Wherein：1 is rubber roll；2 be spring；3 be hydraulic connecting rod；4 be main shaft；5 be spindle carrier；6 be test platform；
7 be nut；8 be power transmission shaft；9 be motor；10 be frequency modulation gearbox；11 be control panel；12 be support bar；13 dissipate for heating wire
Hot device；14 be expansion valve；15 be condenser；16 be refrigeration compressor；17 be main body；18 be control display screen；19 press for control
Button；20 be rubber roll support.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings：
The invention provides a kind of asphalt mixture in track test device, as shown in figure 1, the main body including sealing structure
17, main body 17 is connected with structure of controlling temperature, and structure of controlling temperature includes being arranged on the heating wire radiator 13 inside main body 17, and heating wire dissipates
Hot device 13 and the condenser 15 and refrigeration compressor 16 being arranged on outside main body 17, between condenser 15 and heating wire radiator 13
Pipeline on be provided with expansion valve 14, structure of controlling temperature can control the temperature inside main body 17, make the scope of test temperature wider.
Wherein main body 17 is internally provided with main shaft 4, and motor 9 provides main shaft 4 and rotated, multiple hydraulic pressure are connected with main shaft 4
Connecting rod 3, preferably 4 hydraulic connecting rods 3, wherein the angle between two neighboring hydraulic connecting rod 3 is 90 °, and all hydraulic pressure connects
Bar 3 is in approximately the same plane；As shown in Fig. 2 the end of hydraulic connecting rod 3 is connected with spring 2, spring 2 and rubber roll support 20
Rubber roll 1 is fixedly connected with connection, rubber roll support 20, and rubber roll 1 can be rotated.
The underface of wherein main shaft 4 is provided with fixing device, and the experiment that fixing device includes being arranged on immediately below main shaft 4 is put down
Platform 6, and rubber roll 1 can relative test platform 6 roll, the nut 7 for fixing test specimen is provided with test platform 6, and
The spindle carrier 5 for fixed main shaft 4 is also associated with main shaft 4.
Wherein motor 9 is also connected with the frequency modulation gearbox 10 for controlled motor 9, and the lower section of motor 9 is provided with for branch
Support the support bar 12 of motor 9；As shown in figure 3, being provided with control display screen 18 and control button 19 on frequency modulation gearbox 10, control
Display screen 18 is used to show the information such as the rotating speed of motor, and control button 19 is used to realize the parameters such as the speed of regulation motor 9.
The present invention application method be：Test specimen is fixed on test platform 6 by nut 7 first, hydraulic pressure is then adjusted
The pressure of connecting rod 3, makes its pressure reach testing standard；Then the temperature in main body 17 is adjusted by structure of controlling temperature, reached
Test temperature；Then by the slewing rate of the regulation motor 9 of frequency modulation gearbox 10, motor 9 drives main shaft 4 to rotate, and main shaft 4 drives
Multiple hydraulic connecting rods 3 are rotated, so that the rolling compaction on same straight line of the unidirectional circulation of multiple rubber rolls 1, so
Experiment is completed afterwards.
Claims (9)
1. a kind of asphalt mixture in track test device, it is characterised in that there is provided main body for the main body (17) including sealing structure
(17) structure of controlling temperature of internal temperature control；Main body (17) is internally provided with main shaft (4), and main shaft (4) is connected to the defeated of motor (9)
Go out on end, main shaft (4) and be uniformly connected with multiple hydraulic connecting rods (3), the end of hydraulic connecting rod (3) is connected with rubber roll (1), it is main
The fixing device for fixing test specimen is provided with immediately below axle (4)；Controlled motor (9) fortune is wherein additionally provided with main body (17)
The frequency modulation gearbox (10) of dynamic frequency.
2. asphalt mixture in track test device according to claim 1, it is characterised in that the structure of controlling temperature includes setting
Put in the internal heating wire radiator (13) of main body (17).
3. asphalt mixture in track test device according to claim 2, it is characterised in that the structure of controlling temperature also includes
It is arranged on the refrigeration compressor (16) and condenser (15) being connected outside main body (17) with heating wire radiator (13).
4. asphalt mixture in track test device according to claim 1, it is characterised in that the hydraulic connecting rod (3)
End is connected by spring (2) with rubber roll (1).
5. asphalt mixture in track test device according to claim 4, it is characterised in that the rubber roll (1) is led to
Cross rubber roll support (20) fixed, rubber roll support (20) is connected with spring (2).
6. asphalt mixture in track test device according to claim 1, it is characterised in that connected on the main shaft (4)
There is the spindle carrier (5) of fixed main shaft (4).
7. asphalt mixture in track test device according to claim 1, it is characterised in that the fixing device includes setting
Put the nut (7) being provided with the test platform (6) immediately below main shaft (4), test platform (6) for fixing test specimen.
8. asphalt mixture in track test device according to claim 1, it is characterised in that the frequency modulation gearbox (10)
On be provided with control display screen (18) and control button (19).
9. asphalt mixture in track test device according to claim 1, it is characterised in that the hydraulic connecting rod (3) sets
The angle being equipped between 4, and two neighboring hydraulic connecting rod (3) is 90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710289286.3A CN107179400B (en) | 2017-04-27 | 2017-04-27 | Asphalt mixture rut test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710289286.3A CN107179400B (en) | 2017-04-27 | 2017-04-27 | Asphalt mixture rut test device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107179400A true CN107179400A (en) | 2017-09-19 |
| CN107179400B CN107179400B (en) | 2020-04-07 |
Family
ID=59831686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710289286.3A Expired - Fee Related CN107179400B (en) | 2017-04-27 | 2017-04-27 | Asphalt mixture rut test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107179400B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1789961A (en) * | 2005-12-26 | 2006-06-21 | 长安大学 | Indoor rotary wheel rutting test machine for asphalt mixture |
| CN102061100A (en) * | 2011-02-02 | 2011-05-18 | 佛山惠福化工有限公司 | Composite modifier modified road bitumen and preparation method thereof |
| CN102445397A (en) * | 2011-10-14 | 2012-05-09 | 河海大学 | Rut testing device for asphalt mixture of mountain roads and method thereof |
| CN103076211A (en) * | 2012-12-20 | 2013-05-01 | 华南理工大学 | Method for manufacture of cylindrical asphalt mixture test piece and multiwheel rut-loading test method |
| CN103197049A (en) * | 2013-03-20 | 2013-07-10 | 长安大学 | Indoor wheel rutting instrument |
| CN105241749A (en) * | 2015-11-10 | 2016-01-13 | 昆山市交通工程试验检测中心 | Improved asphalt mixture wheel tracking test device |
| CN105136587B (en) * | 2015-09-01 | 2018-04-20 | 武汉路源工程质量检测有限公司 | A kind of asphalt mixture in track test device |
-
2017
- 2017-04-27 CN CN201710289286.3A patent/CN107179400B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1789961A (en) * | 2005-12-26 | 2006-06-21 | 长安大学 | Indoor rotary wheel rutting test machine for asphalt mixture |
| CN102061100A (en) * | 2011-02-02 | 2011-05-18 | 佛山惠福化工有限公司 | Composite modifier modified road bitumen and preparation method thereof |
| CN102445397A (en) * | 2011-10-14 | 2012-05-09 | 河海大学 | Rut testing device for asphalt mixture of mountain roads and method thereof |
| CN103076211A (en) * | 2012-12-20 | 2013-05-01 | 华南理工大学 | Method for manufacture of cylindrical asphalt mixture test piece and multiwheel rut-loading test method |
| CN103197049A (en) * | 2013-03-20 | 2013-07-10 | 长安大学 | Indoor wheel rutting instrument |
| CN105136587B (en) * | 2015-09-01 | 2018-04-20 | 武汉路源工程质量检测有限公司 | A kind of asphalt mixture in track test device |
| CN105241749A (en) * | 2015-11-10 | 2016-01-13 | 昆山市交通工程试验检测中心 | Improved asphalt mixture wheel tracking test device |
Non-Patent Citations (2)
| Title |
|---|
| 李晓军: "《多孔水泥混凝土微观机理与仿真》", 31 July 2013, 西北工业大学出版社 * |
| 谢冬喜: "温拌富沥青混合料性能研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》 * |
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| Publication number | Publication date |
|---|---|
| CN107179400B (en) | 2020-04-07 |
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