CN203719932U - Sample collecting equipment for determining homogeneity of pavement asphalt mixture - Google Patents
Sample collecting equipment for determining homogeneity of pavement asphalt mixture Download PDFInfo
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- CN203719932U CN203719932U CN201320833762.0U CN201320833762U CN203719932U CN 203719932 U CN203719932 U CN 203719932U CN 201320833762 U CN201320833762 U CN 201320833762U CN 203719932 U CN203719932 U CN 203719932U
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- lifting motor
- asphalt mixture
- sample
- slideway
- emery wheel
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Abstract
The utility model discloses sample collecting equipment for determining homogeneity of a pavement asphalt mixture. The sample collecting equipment comprises a bracket, a lifting motor, a hydraulic device, a slide way, a grinding wheel, a conveyer belt, a collecting barrel, a servo motor, a rack and a funnel. The grinding wheel can finely grind the sample by using coordination of the servo motor and the hydraulic device and the lifting motor, so as to obtain the ground sample. The sample collecting equipment is applied to determination of the homogeneity of the pavement asphalt mixture. The sample collected by the device is good in homogeneity, strong in representativeness, high in automatic degree, convenient to use, simple in structure, stable and reliable, and good in safety, and can achieve man-machine isolation.
Description
Technical field
The utility model relates to pavement engineering technical field, is specifically related to a kind of sample collection apparatus, for the sample collection of pavement asphalt mixture uniformity.
Background technology
Along with the fast development of expressway construction, the early damage phenomenon of bituminous pavement has caused people's great attention.In causing many latencies of hot-mixed bitumen pavement early damage, the most serious is the non-uniformity problem of asphalt.The performance and used life of the degree of uniformity direct relation bituminous pavement of asphalt, affects the maintenance cost on road surface.Segregation affects the pavement performance of asphalt, causes ravelling, longitudinal cracking and fatigue crack, and the bituminous concrete pavement of segregation can reduce more than 10%～50% its serviceable life.
So the homogeneity of raising asphalt, eliminates the multiple early damage phenomenon of bituminous pavement and guarantees that the tool in serviceable life on road surface is of great significance improving the service property (quality) on road surface, reducing even at all.Segregation comprises Gradation Segregation and demixing temperature.Gradation Segregation refers to that thickness in asphalt is gathered materials and distributes and bitumen content inhomogeneous, and after paving, some local local coarse aggregates or fine aggregate are concentrated, and the best asphalt content of bitumen content and design is not inconsistent; Demixing temperature refers to the excessive temperature differentials producing after every a collection of compound making in work progress, and this demixing temperature will cause the inhomogeneous of compactness.
At present, the detection of Homogeneity of Asphalt Mixture and research method have two kinds: (1) homogeneity Non-Destructive Testing; (2) the homogeneity research based on Digital Image Processing.The former is the method for segregation of finding the most intuitively at present, and by survey the construction depth on road surface with sand patch method at road surfaces, but the result that different testers measures while using the method differs greatly, thereby it is very large empirical that it is contained.Sometimes by visual inspection, go out to have the position of serious segregation, but may record identical construction depth.Digital image technology be by the continuous image information of a width width utilize charge-coupled image sensor (CDD) or scanner discrete for numerical information.Its process has image acquisition, image processing and graphical analysis etc.The basic element of character of digital image processing system is: process image computer, image digitazation instrument and image display.Homogeneity Non-Destructive Testing is subject to artificial because affect the degree of uniformity that the serious and digitized index of neither one is weighed asphalt, automaticity is lower, be subject to the impact of weather and temperature, and most importantly spread the degree of uniformity that micromicrofarad mensuration degree of uniformity can only be passed judgment on road table asphalt, can not observe the situation of asphalt inside.Homogeneity based on digital picture has been studied and defined detailed evaluation index, but feasibility is not high under existing laboratory condition, and laboratory hardware device and researchist's professional degree is had relatively high expectations.
Summary of the invention
The problem existing for above-mentioned prior art, the purpose of this utility model is, a kind of sample collection apparatus is provided, by the core that asphaltic road-mix surface course is drilled through, process, process, thereby obtain representing that compound in core gathers materials and the distribution situation of binder, for Homogeneity of Asphalt Mixture research provides new device instrument.
In order to realize above-mentioned task, the technical solution adopted in the utility model is:
For a sample collection apparatus for pavement asphalt mixture uniformity,
Comprise support, be provided with vertical slideway on support, the lifting motor that can slide along slideway is installed on slideway, the output shaft of lifting motor is vertical with slideway; On support, be consolidated with hydraulic means, the output shaft of hydraulic means and its end parallel with slideway is cemented on lifting motor; On the output shaft of lifting motor, be provided with emery wheel, emery wheel below is provided with funnel;
At emery wheel front end, be provided with support plate, be provided with tooth bar on support plate, tooth bar and support plate be arranged in parallel, and tooth bar is consolidated with fixture near one end of lifting motor; Servomotor is installed on support plate, on the output shaft of servomotor, is provided with and tooth bar meshed gears;
Funnel below is provided with driving-belt, is placed with gathering barrel on travelling belt.
Further, described funnel is fixed on emery wheel below by the fixed mount being connected on lifting motor.
Further, described travelling belt is by direct motor drive.
As a kind of preferred version, the first displacement transducer is installed on lifting motor, second displacement sensor is installed on fixture.
This device, by the grinding to bitumen mixture specimen, is collected the sample of the sample after grinding, for the evaluation of Homogeneity of Asphalt Mixture is provided convenience effectively auxiliary.The sample good uniformity that this device is collected is representative strong; Automaticity is high, easy to use, and simple in structure, solid and reliable, can realize man-machine isolation, and security is good.
Accompanying drawing explanation
Fig. 1 is the one-piece construction figure of this device;
Fig. 2 is the schematic diagram of abrasion wheel grinding test specimen;
Number in the figure representative: 1-support, the 2-the first displacement transducer, 3-hydraulic means, 4-slideway, 5-lifting motor, 6-fixed mount, 7-sample, 8-travelling belt, 9-gathering barrel, 10-support plate, 11-servomotor, 12-tooth bar, 13-second displacement sensor, 14-fixture, 15-funnel, 16-test specimen, 17-emery wheel;
Below in conjunction with accompanying drawing, the utility model is described further.
Embodiment
Defer to technique scheme, as shown in Figure 1, a kind of sample collection apparatus for pavement asphalt mixture uniformity, comprise support 1, on support 1, be provided with vertical slideway 4, the lifting motor 5 that can slide along slideway 4 is installed on slideway 4, the output shaft of lifting motor 5 is vertical with slideway 4; On support 1, be consolidated with hydraulic means 3, the output shaft of hydraulic means 3 and its end parallel with slideway 4 is cemented on lifting motor 5; On the output shaft of lifting motor 5, be provided with emery wheel 17, emery wheel 17 belows are provided with funnel 15;
At emery wheel 17 front ends, be provided with support plate 10, be provided with tooth bar 12 on support plate 10, tooth bar 12 be arranged in parallel with support plate 10, and tooth bar 12 is consolidated with fixture 14 near one end of lifting motor 5; Servomotor 11 is installed on support plate 10, on the output shaft of servomotor 11, is provided with and tooth bar 12 meshed gears;
Funnel 15 belows are provided with driving-belt, are placed with gathering barrel 9 on travelling belt 8.
When this device is installed, support 1 is cemented in firm place, on girder steel, requires its structure firm, can bear the weight of lifting motor 5 and hydraulic means 3.Slideway 4 positions of adjustable lifting motor 5 on slideway 4 that arrange on support 1.Hydraulic means 3 can adopt lifting pump, and its output shaft end is connected with lifting motor 5, controls the position of lifting motor 5 on slideway 4.Emery wheel 17 is installed, for bitumen mixture specimen 16 is polished on the output shaft of lifting motor 5.Sample after polishing, collects by being arranged on the funnel 15 of emery wheel 17 belows, finally drops in the gathering barrel 9 on funnel 15 below travelling belts 8.Funnel 15 is fixed on emery wheel 17 belows by the fixed mount 6 being connected on lifting motor 5.On travelling belt 8, gathering barrel 9 arranges a plurality ofly, and driving-belt is by direct motor drive.
On the support plate 10 of emery wheel 17 front ends, be provided with fixture 14, as shown in Figure 2; Fixture 14 is for fixing bitumen mixture specimen 16, fixture 14 is connected with a tooth bar 12, tooth bar 12, by the gear drive being arranged on servomotor 11 output shafts, by the cooperation of wheel and rack 12, can be controlled the distance between test specimen fixing on fixture 14 16 and emery wheel 17.
As a kind of preferred version, in order to control more subtly the displacement of lifting distance and the fixture 14 of lifting motor 5, the first displacement transducer 2 is installed on lifting motor 5, second displacement sensor 13 is installed on fixture 14, by the number of degrees of sensor, can ancillary staff judge the displacement of lifting motor 5 and fixture 14.The first displacement transducer 2 and second displacement sensor 13 are conventional Linear displacement transducer.
Utilize this device to carry out the collection process of bitumen mixture specimen 16 samples 7 as follows:
1. according to site operation situation, drill through representative asphalt core test specimen 16, after test specimen 16 is dried, be fixed in the fixture 14 of this device;
2. adjust the position of lifting motor 5, make emery wheel 17 be positioned at the top of support plate 10, the front end of test specimen 16;
3. by servomotor 11, adjust test specimen 16, test specimen 16 is contacted with emery wheel 17;
4. open lifting motor 5, test specimen 16 is ground, sample 7 particles of collection fall into gathering barrel 9;
5. because core test specimen 16 has certain length, therefore when emery wheel 17 and sample contact portion, grind when complete, adjust the position of lifting motor 5, make remainder on emery wheel 17 grinding test specimens 16, thereby guaranteed homogeneity and the representativeness of sample 7;
6. the part that can contact when emery wheel 17 is all ground when complete, adjusts samples again contact with emery wheel 17 by servomotor 11, and repetition said process, until test specimen 16 grindings are complete.
7. in process of lapping, in gathering barrel 9, collect after full sample 7, drive travelling belt 8 to rotate, with another empty gathering barrel 9, collect sample 7.
After sample 7 has been collected, by gathering barrel 9 numberings, do successively extraction test, measure the quality of the pitch in each gathering barrel 9 and the Powder samples of gathering materials, then utilize mathematical method analytical test result, evaluate the homogeneity of core.
In the utility model, servomotor 11 also can coordinate processor to control with second displacement sensor 13 by the first displacement transducer 2 with lifting motor 5: the first displacement transducer 2, second displacement sensor 13, lifting motor 5, servomotor 11 and hydraulic means 3 are all connected with processor, processor adopting threshold method is controlled, according to the positional information of the first displacement transducer 2, second displacement sensor 13 feedbacks, with the threshold value of setting, can complete the automatic grinding process of test specimen 16; The wherein setting of processor and be conventional method with coordinating of miscellaneous part, those skilled in the art can complete according to scheme of the present utility model the work that arranges of processor.
Claims (4)
1. for a sample collection apparatus for pavement asphalt mixture uniformity, it is characterized in that:
Comprise support (1), be provided with vertical slideway (4) on support (1), the lifting motor (5) that can slide along slideway (4) is installed on slideway (4), the output shaft of lifting motor (5) is vertical with slideway (4); On support (1), be consolidated with hydraulic means (3), the output shaft of hydraulic means (3) and its end parallel with slideway (4) is cemented on lifting motor (5); On the output shaft of lifting motor (5), be provided with emery wheel (17), emery wheel (17) below is provided with funnel (15);
At emery wheel (17) front end, be provided with support plate (10), be provided with tooth bar (12) on support plate (10), tooth bar (12) be arranged in parallel with support plate (10), and tooth bar (12) is consolidated with fixture (14) near one end of lifting motor (5); Servomotor (11) is installed on support plate (10), on the output shaft of servomotor (11), is provided with and tooth bar (12) meshed gears;
Funnel (15) below is provided with driving-belt, is placed with gathering barrel (9) on travelling belt (8).
2. the sample collection apparatus for pavement asphalt mixture uniformity as claimed in claim 1, is characterized in that, described funnel (15) is fixed on emery wheel (17) below by the fixed mount (6) being connected on lifting motor (5).
3. the sample collection apparatus for pavement asphalt mixture uniformity as claimed in claim 1, is characterized in that, described travelling belt (8) is by direct motor drive.
4. the sample collection apparatus for pavement asphalt mixture uniformity as claimed in claim 1, is characterized in that, the first displacement transducer (2) is installed on lifting motor (5), and second displacement sensor (13) is installed on fixture (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320833762.0U CN203719932U (en) | 2013-12-16 | 2013-12-16 | Sample collecting equipment for determining homogeneity of pavement asphalt mixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320833762.0U CN203719932U (en) | 2013-12-16 | 2013-12-16 | Sample collecting equipment for determining homogeneity of pavement asphalt mixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203719932U true CN203719932U (en) | 2014-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320833762.0U Expired - Fee Related CN203719932U (en) | 2013-12-16 | 2013-12-16 | Sample collecting equipment for determining homogeneity of pavement asphalt mixture |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113247538A (en) * | 2021-06-21 | 2021-08-13 | 海南山金矿业有限公司 | Mineral aggregate conveying and sampling line system |
| CN115555107A (en) * | 2022-12-04 | 2023-01-03 | 创志科技(江苏)股份有限公司 | Granulator conveying system capable of automatically replacing charging barrel |
-
2013
- 2013-12-16 CN CN201320833762.0U patent/CN203719932U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113247538A (en) * | 2021-06-21 | 2021-08-13 | 海南山金矿业有限公司 | Mineral aggregate conveying and sampling line system |
| CN113247538B (en) * | 2021-06-21 | 2022-09-20 | 海南山金矿业有限公司 | Mineral aggregate conveying and sampling line system |
| CN115555107A (en) * | 2022-12-04 | 2023-01-03 | 创志科技(江苏)股份有限公司 | Granulator conveying system capable of automatically replacing charging barrel |
| CN115555107B (en) * | 2022-12-04 | 2023-03-10 | 创志科技(江苏)股份有限公司 | Automatic change granulator conveying system of receipts feed cylinder |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140716 Termination date: 20141216 |
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| EXPY | Termination of patent right or utility model |