CN104215498A - Multifunctional rut testing instrument - Google Patents
Multifunctional rut testing instrument Download PDFInfo
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- CN104215498A CN104215498A CN201310206362.1A CN201310206362A CN104215498A CN 104215498 A CN104215498 A CN 104215498A CN 201310206362 A CN201310206362 A CN 201310206362A CN 104215498 A CN104215498 A CN 104215498A
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Abstract
The invention discloses a multifunctional rut testing instrument, and relates to a rut testing instrument. The provided multifunctional rut testing instrument solves the problem that the conventional rut stimulation testing devices cannot obtain the data that is most approximate to the actual data under comprehensive conditions. The rut testing instrument is composed of a testing box, an industrial computer, and a control table; a rut testing assembly, an ultraviolet lamp, a spraying nozzle, a refrigerator, a heater, a temperature sensor, an oxygen gas jet pipe, a nitrogen gas jet pipe, and an oxygen gas concentration sensor are arranged in the testing box, the industrial computer controls the rut testing assembly through program software, and the control table is used to control the switch of the ultraviolet lamp, the spraying of the spraying nozzle, the temperature, and the oxygen gas concentration. The provided multifunctional rut testing instrument can carry out stimulation tests under comprehensive environment with different sunlight strengths, rain water amounts, temperature ranges, and oxygen gas concentrations so as to obtain the asphalt road surface aging situation data, which is closest to the actual data, under the comprehensive conditions. The test results have a good adaptability, and thus the testing instrument is very helpful for the researches on the aging rules of asphalt road surface.
Description
Technical field
The present invention relates to a kind of vehicle tracking test instrument, especially a kind of multifunctional track tester combining the change of simulation low temperature, solar irradiation, rainwater and oxygen concentration.
Background technology
At present, known asphalt pavement rut simulation test device is mainly made up of chamber and industrial computer.Chamber is made up of power switch, well heater, experimental wheel, experimental wheel travel driving motor, lifting jack, balancing weight, test specimen fixed mount, temperature sensor, displacement transducer, crank, casing.The test specimen formed is loaded test specimen fixed mount locking, after temperature constant, with hand rocking handle balancing weight is put down making experimental wheel fully contact test specimen, make it be in pressed status always.Upper and lower adjusted position displacement sensor, and lock displacement transducer.Start industrial computer, the test start key clicked on menu carries out.The variable quantity that curve viewing area will have red displacement curve to show displacement over time in process of the test.Mouse-pointing displacement curve is clicked and can show current deflection and current time.Test rear rut automatically to stop, and calculate test findings.Then test report is printed.
But the test condition of existing rut simulation test device is only Adjustment Tests temperature, and temperature only controls mostly at normal temperature to 60 DEG C, other a lot of factor of natural environment uncomprehensive, as ultraviolet, rainwater, low temperature, oxygen concentration change etc.Therefore, existing rut simulation test device cannot draw the data closest to actual conditions under above-mentioned integrated environment condition impact, and the scope of application of test findings is subject to significant limitation.
Summary of the invention
For above-mentioned defect and the problem of prior art, the object of this invention is to provide the multifunctional track tester of a kind of comprehensive simulation low temperature, solar irradiation, rainwater and oxygen concentration change, obtain the data closest to actual bituminous pavement aging conditions under the impact of above-mentioned integrated condition, the applicability of test findings is good.
In order to achieve the above object, the invention provides following technical scheme:
A kind of multifunctional track tester, be made up of chamber, industrial computer and control desk, chamber inside arranges wheel tracking test assembly, uviol lamp, spray head, refrigerating plant, well heater, temperature sensor, oxygen spray pipe, nitrogen sparge tube and oxygen concentration sensor, industrial computer controls wheel tracking test assembly by program software, and control desk is used for the switch of the uviol lamp in Control experiment case, the spray of spray head, temperature and oxygen concentration.
Particularly, described control desk comprises ultraviolet violet light switch, ballast resistor, spray switch, spray pump, refrigeration switch, heater switch, temperature controller, electrothermal relay, oxygenation switch, adds nitrogen switch, oxygen concentration control panel, oxygen solenoid valve, nitrogen solenoid valve and at least one contactor.
Described ultraviolet violet light switch passes through the first contactor and ballast resistor and uviol lamp and forms operation circuit;
Described spray switch connects and composes spray operation circuit by the second contactor and spray pump, and spray pump is communicated with external water source with spray head respectively;
Described refrigeration switch passes through the 3rd contactor and electrothermal relay and refrigerating plant and forms refrigeration control circuit, described heater switch forms computer heating control circuit by the 4th contactor and well heater, and described temperature controller is used for Control experiment the temperature inside the box with temperature sensor, refrigeration control circuit and computer heating control connection respectively and is in design temperature;
Described oxygenation switch forms oxygenation operation circuit by the 5th contactor and oxygen solenoid valve, and oxygen solenoid valve is communicated with external oxygen source with oxygen spray pipe respectively; The described nitrogen switch that adds consists of the 6th contactor and nitrogen solenoid valve and adds nitrogen operation circuit, and nitrogen solenoid valve is communicated with outside nitrogenous source with nitrogen sparge tube respectively; Described oxygen concentration control panel is respectively with oxygen concentration sensor, oxygenation operation circuit with add nitrogen operation circuit and be connected and be in setting value for oxygen concentration in Control experiment case.
Particularly, described control desk also comprises very first time relay and second time relay, in the operation circuit that very first time relay access ultraviolet violet light switch, the first contactor and ballast resistor and uviol lamp are formed, in the spray operation circuit that the second time relay access spray switch, the second contactor and spray pump is formed.
Further, described control desk also comprises total power switch, and total power switch is by the 7th contactor and electric power generating composition operation circuit.
Particularly, described control desk is made up of the control panel on casing and casing, control panel arranged ultraviolet violet light switch, spray switch, refrigeration switch, heater switch, temperature controller, oxygenation switch, add nitrogen switch, oxygen concentration control panel and total power switch, ballast resistor, spray pump, electrothermal relay, oxygen solenoid valve, nitrogen solenoid valve, very first time relay, second time relay and at least one contactor are set in casing.
Particularly, in described chamber, also tank is set.
Particularly, the outer wall of described chamber arranges heat-insulation layer.
Particularly, described uviol lamp is arranged on chamber top symmetrically.
Particularly, the height of described uviol lamp can regulate.
Particularly, arrange montant symmetrically, montant arranges chute at chamber top, one end of carriage release lever is placed in chute, and the other end fixes uviol lamp.
Particularly, the distance of described uviol lamp and test specimen is 300 ~ 700mm.
Further, described uviol lamp arranges 2 ~ 6, and preferably, described uviol lamp arranges 4, and each uviol lamp has oneself corresponding independently switch control line.
Particularly, the wavelength of described uviol lamp is 200 ~ 400nm.
Particularly, the water delivering orifice of described spray head is arranged on above the test specimen fixed mount in wheel tracking test assembly.
Particularly, described refrigerating plant is arranged on the top of chamber.
Further, described refrigerating plant is arranged on the relative two ends at the top of chamber symmetrically.
More specifically, 1 ~ 3 described refrigerating plant is set in described chamber; Preferably, 2 described refrigerating plants are set.
Particularly, described oxygen spray pipe and nitrogen sparge tube are arranged on bottom chamber.
Particularly, described oxygen concentration sensor is arranged on the side relative with oxygen spray pipe and nitrogen sparge tube bottom chamber.
Particularly, described wheel tracking test assembly comprises experimental wheel, slide bar, connecting rod, drive motor, lifting jack, balancing weight, test specimen fixed mount, test specimen, displacement transducer and crank, test specimen fixed mount is placed in bottom chamber, test specimen is placed on test specimen fixed mount, upwards set gradually experimental wheel, slide bar, lifting jack and balancing weight, wherein, experimental wheel is fixed to slide bar lower end, slide bar is connected with drive motor by connecting rod, crank is for controlling the lifting of balancing weight, and displacement transducer is for measuring test piece deformation amount.
The present invention is directed to existing rut simulation test device cannot draw at ultraviolet, rainwater, closest to the data of actual conditions under the integrated environment condition impact of low temperature and oxygen concentration change, the problem of the being greatly limited property of the scope of application of test findings, by uviol lamp, spray head, spray pump, refrigerating plant, well heater, oxygen spray pipe and nitrogen sparge tube set in vehicle tracking test instrument, achieve at sunshine, rainwater, large-temperature range, simulation test is carried out under the integrated environment of different oxygen concentration, obtain the data closest to actual bituminous pavement aging conditions under the impact of above-mentioned integrated condition, the applicability of test findings is good.
Simultaneously, vehicle tracking test instrument of the present invention can also select wherein one or more environmental baselines to carry out simulation test according to test specific requirement, for the aging rule research of bituminous pavement provides extraordinary test instrument, be conducive to researcher and develop the pavement asphalt be better applicable under Different climate, promote the development of China's Modern Traffic.
The present invention integrates asphalt pavement material accelerated deterioration and accelerated loading, meets the needs of China's Modern Traffic development, defines the advanced Asphalt pavement analyzer device that China has independent intellectual property right.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the main TV structure schematic diagram of chamber in vehicle tracking test instrument of the present invention;
Fig. 2 is the plan structure schematic diagram of chamber in vehicle tracking test instrument of the present invention.
Embodiment
Below in conjunction with embodiments of the invention, be clearly and completely described technical scheme of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1
According to Fig. 1 and Fig. 2, the present embodiment is described: a kind of multifunctional track tester, be made up of chamber, industrial computer and control desk, chamber inside arranges wheel tracking test assembly, uviol lamp 2, spray head 3, refrigerating plant 4, well heater 5, temperature sensor 6, oxygen spray pipe 7, nitrogen sparge tube 8, oxygen concentration sensor 9 and tank 10, industrial computer controls wheel tracking test assembly by program software, and control desk is used for the switch of the uviol lamp 2 in Control experiment case, the spray of spray head 3, temperature and oxygen concentration.
Described chamber outer wall on heat-insulation layer 1 is set.Warranty test case temperature constant in process of the test.
The water that described tank 10 sprays for collecting spray head, and by urine dilution test case.
Described wheel tracking test assembly comprises experimental wheel 11, slide bar 12, connecting rod 13, drive motor 14, lifting jack 15, balancing weight 16, test specimen fixed mount 17, test specimen 18, displacement transducer (scheme depending on) and crank (scheming not look), test specimen fixed mount 17 is placed in bottom chamber, test specimen 18 is placed on test specimen fixed mount 17, upwards set gradually experimental wheel 11, slide bar 12, lifting jack 15 and balancing weight 16, wherein, experimental wheel 11 is fixed to slide bar 12 lower end, slide bar 12 is connected with drive motor 14 by connecting rod 13, crank is for controlling the lifting of balancing weight 16, displacement transducer is for measuring the deflection of test specimen 18.
Described uviol lamp 2 is arranged on chamber top symmetrically, and arranging number is 4, and the wavelength of uviol lamp 2 is 200 ~ 400nm.
Described spray head 3 is arranged on above the test specimen fixed mount 17 in wheel tracking test assembly, namely above test specimen 18.
The relative two ends at the top of chamber arrange 1 described refrigerating plant 4 respectively.
The lateral wall of described refrigerating plant 4 arranges blower fan 41.
Between described refrigerating plant 4 and described uviol lamp 2, metal partion (metp) 19 is set, avoids refrigerating plant and uviol lamp to influence each other.
Described well heater 5 is arranged on the centre position at the top of chamber, arranges 1.
Described oxygen spray pipe 7 and nitrogen sparge tube 8 are arranged on the left side bottom chamber.
Described oxygen concentration sensor 9 is arranged on the right side relative with nitrogen sparge tube 8 with oxygen spray pipe 7 bottom chamber.
Described control desk is made up of the control panel on casing and casing, control panel arranged ultraviolet violet light switch, spray switch, refrigeration switch, heater switch, temperature controller, oxygenation switch, add nitrogen switch, oxygen concentration control panel and total power switch, ballast resistor, spray pump, electrothermal relay, oxygen solenoid valve, nitrogen solenoid valve, very first time relay, second time relay and at least one contactor are set in casing.
The number of described ultraviolet violet light switch is 4, and each ultraviolet violet light switch forms operation circuit respectively by the first contactor and ballast resistor and corresponding uviol lamp 2, and namely each uviol lamp 2 has independently operation circuit.
In above-mentioned 4 operation circuits of described very first time relay access, for controlling the switch periods of uviol lamp 2, control the UV-irradiation time.
Described spray switch connects and composes spray operation circuit by the second contactor and spray pump, and spray pump is communicated with external water source with spray head 3 respectively.Described external water source can be tap water, also can be the water source close to rainwater composition of oneself allotment.
In the spray operation circuit that described second time relay access spray switch, the second contactor and spray pump is formed.Second time relay arranges the spray cycle, and spray time is much of that, and second time relay sends signal to spray operation circuit makes spray operation circuit disconnect, and stops spray; When arriving spray time, second time relay sends signal to spray operation circuit makes spray operation circuit close, and starts spray again.
By arranging described very first time relay and second time relay, uviol lamp and spray head alternation within the cycle can be realized.
Described refrigeration switch forms refrigeration control circuit with 2 refrigerating plants 4 respectively by the 3rd contactor and electrothermal relay.Described heater switch forms computer heating control circuit by the 4th contactor and well heater 5.
Described temperature controller is used for Control experiment the temperature inside the box with temperature sensor 6, refrigeration control circuit and computer heating control connection respectively and is in design temperature, described temperature controller is connected with temperature sensor 6 tests the temperature inside the box with the real time measure, the switch of temperature controller and refrigeration control line connection control refrigeration control circuit, the switch of temperature controller and computer heating control line connection control computer heating control circuit.
When certain low temperature environment lower than room temperature is simulated in chamber, refrigeration control circuit closes, refrigerating plant 4 works, temperature controller set temperature value, when testing the temperature inside the box lower than this set temperature value, refrigeration control circuit disconnects just to refrigeration control line contact signal by temperature controller, stops refrigeration.Described low temperature environment is minimum can to subzero 50 DEG C.
When the temperature environment of more than certain room temperature is simulated in chamber, computer heating control circuit closes, and well heater 5 works, temperature controller set temperature value, when testing the temperature inside the box higher than this set temperature value, computer heating control circuit disconnects just to computer heating control line signal by temperature controller, stops heating.Temperature environment more than room temperature reaches as high as 60 DEG C.
Described oxygenation switch forms oxygenation operation circuit by the 5th contactor and oxygen solenoid valve, and oxygen solenoid valve is communicated with external oxygen source with oxygen spray pipe 7 respectively.The described nitrogen switch that adds consists of the second contactor and nitrogen solenoid valve and adds nitrogen operation circuit, and nitrogen solenoid valve is communicated with outside nitrogenous source with nitrogen sparge tube 8 respectively.
Described oxygen concentration control panel is respectively with oxygen concentration sensor 9, oxygenation operation circuit with add nitrogen operation circuit and be connected and be in setting value for oxygen concentration in Control experiment case.Described oxygen concentration control panel is connected with the concentration of oxygen in real-time detection experiment case with oxygen concentration sensor 9, the switch of described oxygen concentration control panel and oxygenation operation circuit connection control oxygenation operation circuit, described oxygen concentration control panel with add the switch that nitrogen operation circuit connection control adds nitrogen operation circuit.
When chamber simulate certain lower than air in the low-oxygen environment of oxygen concentration time, add nitrogen operation circuit to close, nitrogen sprays into chamber by nitrogen sparge tube, oxygen concentration control panel setting oxygen concentration, when oxygen concentration in chamber is lower than this setting value, oxygen concentration control panel just will add the disconnection of nitrogen operation circuit to adding nitrogen operation circuit signal, stop adding nitrogen.
When chamber simulate certain higher than air in the oxygen environment of oxygen concentration time, oxygenation operation circuit closes, oxygen sprays into chamber by oxygen spray pipe, oxygen concentration control panel setting oxygen concentration, when oxygen concentration in chamber is higher than this setting value, oxygenation operation circuit disconnects just to oxygenation operation circuit signal by oxygen concentration control panel, stops oxygenation.
Described total power switch, by the 7th contactor and electric power generating composition operation circuit, for cutting off general supply during emergency condition, can stop all actions be in operation immediately.
Embodiment 2
As shown in Figure 1, as the conversion embodiment of embodiment 1, the height of uviol lamp described in the technical scheme of the present embodiment can regulate, at chamber top, montant 22 is set symmetrically, montant 22 is arranged chute 23, one end of carriage release lever 21 is placed in chute 23, and the other end fixes uviol lamp 2.
Described uviol lamp 2 is 300 ~ 700mm with the adjustable distance of test specimen 18.
By adjusting the position of one end in chute of carriage release lever, realize the adjustment of uviol lamp height, and then the distance of adjustment uviol lamp and test specimen, thus reach the object regulating ultra violet lamp to the ultraviolet ray intensity on test specimen.In wheel tracking test, experimenter can determine the distance of uviol lamp and test specimen according to actual needs, obtains the test figure of more real bituminous pavement aging conditions.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with the protection domain of claim.
Claims (10)
1. a multifunctional track tester, it is characterized in that: be made up of chamber, industrial computer and control desk, chamber inside arranges wheel tracking test assembly, uviol lamp, spray head, refrigerating plant, well heater, temperature sensor, oxygen spray pipe, nitrogen sparge tube and oxygen concentration sensor, industrial computer controls wheel tracking test assembly by program software, and control desk is used for the switch of the uviol lamp in Control experiment case, the spray of spray head, temperature and oxygen concentration.
2. a kind of multifunctional track tester according to claim 1, is characterized in that: described control desk comprises ultraviolet violet light switch, ballast resistor, spray switch, spray pump, refrigeration switch, heater switch, temperature controller, electrothermal relay, oxygenation switch, adds nitrogen switch, oxygen concentration control panel, oxygen solenoid valve, nitrogen solenoid valve and at least one contactor;
Described ultraviolet violet light switch passes through the first contactor and ballast resistor and uviol lamp and forms operation circuit;
Described spray switch connects and composes spray operation circuit by the second contactor and spray pump, and spray pump is communicated with external water source with spray head respectively;
Described refrigeration switch passes through the 3rd contactor and electrothermal relay and refrigerating plant and forms refrigeration control circuit, described heater switch forms computer heating control circuit by the 4th contactor and well heater, and described temperature controller is used for Control experiment the temperature inside the box with temperature sensor, refrigeration control circuit and computer heating control connection respectively and is in design temperature;
Described oxygenation switch forms oxygenation operation circuit by the 5th contactor and oxygen solenoid valve, and oxygen solenoid valve is communicated with external oxygen source with oxygen spray pipe respectively; The described nitrogen switch that adds consists of the 6th contactor and nitrogen solenoid valve and adds nitrogen operation circuit, and nitrogen solenoid valve is communicated with outside nitrogenous source with nitrogen sparge tube respectively; Described oxygen concentration control panel is respectively with oxygen concentration sensor, oxygenation operation circuit with add nitrogen operation circuit and be connected and be in setting value for oxygen concentration in Control experiment case.
3. a kind of multifunctional track tester according to claim 2, it is characterized in that: described control desk also comprises very first time relay and second time relay, in the operation circuit that very first time relay access ultraviolet violet light switch, the first contactor and ballast resistor and uviol lamp are formed, in the spray operation circuit that the second time relay access spray switch, the second contactor and spray pump is formed.
4. a kind of multifunctional track tester according to claim 3, is characterized in that: described control desk also comprises total power switch, and total power switch is by the 7th contactor and electric power generating composition operation circuit.
5. a kind of multifunctional track tester according to claim 4, it is characterized in that: described control desk is made up of the control panel on casing and casing, control panel arranged ultraviolet violet light switch, spray switch, refrigeration switch, heater switch, temperature controller, oxygenation switch, add nitrogen switch, oxygen concentration control panel and total power switch, ballast resistor, spray pump, electrothermal relay, oxygen solenoid valve, nitrogen solenoid valve, very first time relay, second time relay and at least one contactor are set in casing.
6. according to a kind of multifunctional track tester one of claim 1 to 5 Suo Shu, it is characterized in that: on the outer wall of described chamber, heat-insulation layer is set.
7. according to a kind of multifunctional track tester one of claim 6 Suo Shu, it is characterized in that: in described chamber, also tank is set.
8. a kind of multifunctional track tester according to claim 7, is characterized in that: arrange montant symmetrically at chamber top, montant arranges chute, one end of carriage release lever is placed in chute, and the other end fixes described uviol lamp.
9. a kind of multifunctional track tester according to claim 8, is characterized in that: the water delivering orifice of described spray head is arranged on above the test specimen fixed mount in wheel tracking test assembly.
10. a kind of multifunctional track tester according to claim 9, it is characterized in that: described wheel tracking test assembly comprises experimental wheel, slide bar, connecting rod, drive motor, lifting jack, balancing weight, test specimen fixed mount, test specimen, displacement transducer and crank, test specimen fixed mount is placed in bottom chamber, test specimen is placed on test specimen fixed mount, upwards set gradually experimental wheel, slide bar, lifting jack and balancing weight, wherein, experimental wheel is fixed to slide bar lower end, slide bar is connected with drive motor by connecting rod, crank is for controlling the lifting of balancing weight, displacement transducer is for measuring test piece deformation amount.
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| CN201310206362.1A CN104215498B (en) | 2013-05-29 | 2013-05-29 | A kind of multifunctional track tester |
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| CN201310206362.1A CN104215498B (en) | 2013-05-29 | 2013-05-29 | A kind of multifunctional track tester |
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| CN104215498B CN104215498B (en) | 2016-10-05 |
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| CN201310206362.1A Expired - Fee Related CN104215498B (en) | 2013-05-29 | 2013-05-29 | A kind of multifunctional track tester |
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| CN105160094B (en) * | 2015-08-28 | 2018-01-12 | 武汉理工大学 | Asphalt pavement rut analogy method |
| CN105160094A (en) * | 2015-08-28 | 2015-12-16 | 武汉理工大学 | Asphalt pavement track simulation method |
| CN105651977A (en) * | 2015-08-28 | 2016-06-08 | 武汉理工大学 | Asphalt pavement aging simulating method |
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| CN113109241A (en) * | 2021-03-22 | 2021-07-13 | 北京工业大学 | Asphalt accelerated aging test device for simulating all-weather multi-environment coupling effect |
| CN113075037B (en) * | 2021-03-26 | 2022-06-07 | 武汉建工集团股份有限公司 | Intelligent road construction traffic load engineering detection test system and method |
| WO2022199617A1 (en) * | 2021-03-26 | 2022-09-29 | 武汉建工集团股份有限公司 | Smart road construction traffic load engineering measurement test system |
| CN113075037A (en) * | 2021-03-26 | 2021-07-06 | 武汉建工集团股份有限公司 | Intelligent road construction traffic load engineering detection test system and method |
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| CN104215498B (en) | 2016-10-05 |
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