CN101408499A - Device for testing anti-skid performance of road surface - Google Patents
Device for testing anti-skid performance of road surface Download PDFInfo
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- CN101408499A CN101408499A CNA2008102322199A CN200810232219A CN101408499A CN 101408499 A CN101408499 A CN 101408499A CN A2008102322199 A CNA2008102322199 A CN A2008102322199A CN 200810232219 A CN200810232219 A CN 200810232219A CN 101408499 A CN101408499 A CN 101408499A
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Abstract
The invention discloses a road surface anti-skid performance testing device. The device comprises a driving force part, a data acquisition part, a testing part and a pedestal part. The driving force part comprises a rotation speed control device, a motor and a driving shaft, and provides driving force for a test instrument and controls the rotation speed of a testing disk. The data acquisition part comprises a torque sensor and a data display, and the torque sensor is connected with the data display by a data line. The testing part comprises one testing disk, three rubber sheets are arranged at the bottom of the testing disk, the rubber sheets are in contact with a testing surface, and the driving shaft drives the testing disk to perform test. The pedestal part comprises a bearing plate, a bracket and three support screws, and ensures the tight and parallel contact between the testing disk and the road surface. Anti-skid performance tests are carried out on road surfaces of different configurations by the road surface anti-skid performance testing device so as to analyze the anti-skid performance of the road surfaces of different configurations and provide reliable test basis.
Description
Technical field
The present invention relates to the cling property field tests on road engineering road surface, particularly a kind of device for testing anti-skid performance of road surface.
Background technology
Road pavement is carried out cling property mensuration and is carried out according to the notion of friction mechanics at first, relates to friction mechanical function and other analysis of influential factors between vehicle tyre and the ground surface material.Developed country (as Britain, France and the U.S. etc.) just begins the research of anti-skid performance of road surface measuring technology in late 1920s, has held the international conference of several road surface features afterwards again.Research contents relates generally to measuring friction coefficient technology and problems such as friction mechanism, smooth accident and antiskid standard, and these researchs provide theoretical foundation and practical experience, and countries in the world are developed many surface friction coefficient test facilities and instrumentses in view of the above one after another.
Initial Britain TRRL develops the swinging friction coefficient analyzer, and the back is extensive use of by many countries in the whole world.The eighties, the relevant technologies expert of Research Institute of Highway, Ministry of Communications developed the homemade portable pendulum tester of the first generation, and the back is ordered in the relevant industry technology standard of China, the rules.The rubber slide block is equipped with in the pendulum bottom surface of portable pendulum tester, and pendulum is during from the free bottom of certain altitude, and slider surface contacts with testing surface.Because between the two friction and loss portion of energy, make pendulum can only backswing to certain altitude.Surface friction drag is big more, backswing highly more little (promptly the pendulum value is big more).Test index is the friction pendulum value, and its advantage is one-point measurement, and principle is simple, not only can be used for indoorly, and can be used for the antiskid value of field test pavement of road, and the swinging friction coefficient analyzer is easy to carry, and is simple to operate; Its shortcoming is that efficient is low, can not carry out all fronts test to the long road of mileage, and can only select some highway section sample survey, this makes test result characterize certain one-sidedness that has of pavement skid resistance condition, artifical influence factor is big, influences road traffic, especially on the high speed traveling road, poor stability, can not satisfy detection efficient, automatically, requirement such as safety.
The dynamic friction coefficient tester that Japan makes is called for short DFT, and is similar to portable pendulum tester, by the friction force work done, comes inverse dynamic friction coefficient value with rotation function loss.This instrument is noted by the researcher of a plurality of countries that adopted gradually trend is arranged.The advantage of DFT is to be easy to carry, and can test the friction co-efficient value in single sample point 0～80km/h scope, and its shortcoming is inapplicable to thick structure road surface.
Britain TRRL develops cornering ratio (SFC) tester the sixties, is called the SCRIM system.China introduces the SCRIM system the end of the eighties, and has entered the transportation industry standards system.Its test philosophy is that the code test tire is installed on the test carriage, and (20 ° of drift angles) has a certain degree with vehicle heading deflection.When automobile travelled on moist road surface with certain speed, the test tire was subjected to the effect of side direction frictional resistance, and this friction resistance is cornering ratio (SFC value) divided by the load-carrying on the experimental wheel, and this value can reflect the friction force performance of longitudinal and transverse two directions.Continuously SCRIM test of distance can be grown with the arbitrary speed road pavement by this system, and the water-spraying amount of at every turn carrying can be for the about 55km of test mileage, and test result meets that vehicle is actual to be braked or the situation when smooth, and tests the cruising that does not influence other vehicle.
The anti-skidding situation that countries such as the U.S., Japan, Sweden also adopt vertical friction coefficient testing car (as SAFEGATE friction testing car) to come the evaluation path road surface, vertical friction factor of such measuring apparatus is mainly represented the road surface drag of vehicle when upper edge, road surface direction of traffic is braked.
The main detection means that China adopts at present is pendulum-type frictiograph and sand patch method, factor affecting such as test result tested person condition, environment and the operating process of these equipment and show relatively poor stability, its test result can not reflect the actual cling property in road surface truly, thereby can obtain different results when causing them that the road surface in same highway section is tested, its efficient and reliability also can't satisfy the needs of road management.On the other hand, though dynamically the continous way detection has become current international main flow, on making, bigger difficulty is arranged.When detecting, owing to will brake fully detection wheel, its testing cost is higher simultaneously.Therefore develop quick, objective, accurate, high-level efficiency and checkout equipment that can correct response pavement skid resistance structure and have very important demonstration meaning.
Summary of the invention
The object of the present invention is to provide a kind of device for testing anti-skid performance of road surface, this testing of equipment principle is simple, easy and simple to handle, test accurately, fast, data presentation, Computer Storage be convenient, can realize that quick, objective, accurate, high-level efficiency detects and estimates pavement skid resistance condition.The detection of testing apparatus and the manufacturing expense of instrument are relatively low, and all elements of instrument are homemade, and use, easy to maintenance, and this testing apparatus good reliability help applying of this equipment.
Technical scheme of the present invention is achieved in that
Test plate and rubber slide block, rubber slide block top links to each other with test plate, be connected with an end of driving shaft above the test plate, the other end and the engine of driving shaft link together, engine links to each other with revolution speed control device, on driving shaft, also connect torque sensor, torque sensor and digital indicator, engine is arranged on the bearing.
The support screw that described bearing comprises the bearing plate of support and bottom and is welded on the bearing plate bottom.Angle between per two rubber slide blocks is 120 °.
The invention has the advantages that:
1) portable pendulum tester, sand patch method are compared in anti-skid performance of road surface tester and the standard, can realize automation mechanized operation, and record test data has improved testing efficiency automatically.
2) the anti-skid performance of road surface tester is in test process, and it is consistent with the contact area on test road surface to remain the rubber slide block, and test data is accurately stable, can correctly reflect the pavement of road anti-slide performance of the table structure of not going the same way.
3) differently with other antiskid testing apparatus be, the present invention has adopted new detection principle, and output result and function are practical and accurate, and overall performance is superior.
4) this testing tool is the independent development instrument, and all elements are homemade, good reliability, and manufacturing and testing cost are low, help applying of this instrument.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a test panel ground plan of the present invention;
Fig. 3 is a test panel structural drawing of the present invention;
Below in conjunction with accompanying drawing content of the present invention is described in further detail.
Embodiment
The present invention mainly comprises driving force parts, data acquisition parts, test component and support part.
Referring to Fig. 1, comprise test plate 6 and rubber slide block 7, rubber slide block 7 tops link to each other with test plate 6, be connected with an end of driving shaft 3 above the test plate 6, the other end of driving shaft 3 and engine 2 link together, and engine 2 links to each other with revolution speed control device 1, also connect torque sensor 4 on driving shaft 3, torque sensor 4 and digital indicator 5, engine 2 is arranged on the bearing.
Described bearing comprises the bearing plate 9 of support 8 and bottom and the support screw 10 that is welded on bearing plate 9 bottoms.Angle between per two rubber slide blocks 7 is 120 °.
Anti-skid performance of road surface tester top has engine 2 to link to each other with power supply, and energized is regulated revolution speed control device 1, must make driving shaft 3 rotate by power for engine 2 provides, thereby drive test plate 6 motions to obtain stable velocity of rotation.Then test plate 6 is steadily fallen, made the rubber slide block 7 of its bottom contact, test with ground.During test, because when test plate 6 rotates, 3 rubber slide blocks 7 because and the rubbing action between the road surface, can be subjected to the influence of frictional resistance, for keeping test plate 6 uniform rotation, power and frictional resistance that engine 2 provides balance each other, and measure the size of rubber strip 7 frictional resistance moments on the test plate 6 by torque sensor 4, just can converse the friction force that rubber strip 7 is subjected to.Torque sensor 4 is subjected to rubber slide block 7 in the disk rotation process friction torque is sent to digital indicator 5, can read the friction torque in the whole test process, digital indicator 5 is all noted the friction data in the whole test process, pass through the computer data line interface of digital indicator 5 back at last, link to each other with computer, analyze the friction condition that the rubber slide block 7 in the whole test process is subjected to.In whole test process, support 8 and bearing plate 9 are born whole instrument weight, guarantee instrument stable operation in whole test process, 3 support screw 10 are arranged at the bearing plate bottom, the touchdown point of 3 support screw 10 guarantees that test plate 6 contacts parallel tight contact with ground on same surface level.
Referring to Fig. 2,3, test plate 6 radiuses are 10cm, its bottom is equipped with three test slider 7, sheet rubber is equipped with in the bottom of each test slider, every sheet rubber is of a size of 6.35mm * 25.4mm * 76.2mm, sheet rubber links to each other with the test slider 7 on top with slip screw 14 by fixed screw 13, angle between sheet rubber and the ground is 0～30 ° (regulating by slip screw 14), test slider 16 links to each other with test plate 6 by horizontal screw 12, and laterally screw 12 and the vertical screw 13 in top thereof all are equipped with spring.In test process, when inclination to both sides took place for block rubber 7, laterally the back-moving spring on the screw 12 can in time reset block rubber 7, guaranteed that itself and road surface are vertical to contact.Block rubber 7 ran into bump and jolting of causing when vertical screw 13 and top back-moving spring thereof can buffering tests, guaranteed that test slider 7 contacts with the steady homalographic on road surface in the test process, with the assurance precision of test result.
The present invention can reflect the cling property of pavement of road under the different actual pavement structure situations truly, guarantees reliability of testing result, and its practical application effect is remarkable.
Claims (3)
1, a kind of device for testing anti-skid performance of road surface, comprise test plate (6), it is characterized in that, test plate (6) and rubber slide block (7), rubber slide block (7) top links to each other with test plate (6), be connected with an end of driving shaft (3) above the test plate (6), the other end of driving shaft (3) and engine (2) link together, engine (2) links to each other with revolution speed control device (1), on driving shaft (3), also connect torque sensor (4), torque sensor (4) and digital indicator (5), engine (2) is arranged on the bearing.
2, performance test apparatus is surveyed in pavement of road antiskid according to claim 1, it is characterized in that the support screw (10) that described bearing comprises the bearing plate (9) of support (8) and bottom and is welded on bearing plate (9) bottom.
3, device for testing anti-skid performance of road surface according to claim 1 is characterized in that, the angle between per two rubber slide blocks (7) is 120 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102322199A CN101408499A (en) | 2008-11-11 | 2008-11-11 | Device for testing anti-skid performance of road surface |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102322199A CN101408499A (en) | 2008-11-11 | 2008-11-11 | Device for testing anti-skid performance of road surface |
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| CN101408499A true CN101408499A (en) | 2009-04-15 |
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| CNA2008102322199A Pending CN101408499A (en) | 2008-11-11 | 2008-11-11 | Device for testing anti-skid performance of road surface |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102141506A (en) * | 2010-12-30 | 2011-08-03 | 长安大学 | Anti-stripping test device for surface aggregates of porous pavements |
| CN102507900A (en) * | 2011-10-18 | 2012-06-20 | 中公高科养护科技股份有限公司 | Method for detecting skid resistance of pavement |
| CN105445180A (en) * | 2015-12-17 | 2016-03-30 | 甘肃昌恒公路养护技术有限责任公司 | Pavement antiskid performance testing device and testing method thereof |
| CN105806776A (en) * | 2016-03-18 | 2016-07-27 | 河海大学 | Device and method for testing skid resistance of asphalt mixture in damp state |
| CN106092875A (en) * | 2016-08-01 | 2016-11-09 | 山西省交通科学研究院 | The rotary friction coefficient tester of bituminous paving of simulated rainfall and method of testing thereof |
| CN106290145A (en) * | 2016-08-01 | 2017-01-04 | 山西省交通科学研究院 | The bituminous paving friction coefficient tester of a kind of simulated rainfall and method of testing thereof |
| CN109632550A (en) * | 2018-12-24 | 2019-04-16 | 长安大学 | A kind of wear hardness comparative test device and test method |
| CN109724893A (en) * | 2019-03-18 | 2019-05-07 | 广东华路交通科技有限公司 | The test device and method of ultra-thin wearing layer endurance quality in a kind of testing tunnel |
| CN110231283A (en) * | 2019-07-03 | 2019-09-13 | 西安建筑科技大学 | Dynamic rotary friction coefficient tester |
| CN113218332A (en) * | 2021-04-30 | 2021-08-06 | 长安大学 | Evaluation method of macro texture of sand-accumulated asphalt pavement based on rainfall condition |
| CN116479727A (en) * | 2023-06-21 | 2023-07-25 | 中交二公局工程检测技术有限公司 | Road surface construction quality monitoring device |
-
2008
- 2008-11-11 CN CNA2008102322199A patent/CN101408499A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102141506A (en) * | 2010-12-30 | 2011-08-03 | 长安大学 | Anti-stripping test device for surface aggregates of porous pavements |
| CN102507900A (en) * | 2011-10-18 | 2012-06-20 | 中公高科养护科技股份有限公司 | Method for detecting skid resistance of pavement |
| CN102507900B (en) * | 2011-10-18 | 2014-07-09 | 中公高科养护科技股份有限公司 | Method for detecting skid resistance of pavement |
| CN105445180A (en) * | 2015-12-17 | 2016-03-30 | 甘肃昌恒公路养护技术有限责任公司 | Pavement antiskid performance testing device and testing method thereof |
| CN105806776A (en) * | 2016-03-18 | 2016-07-27 | 河海大学 | Device and method for testing skid resistance of asphalt mixture in damp state |
| CN106092875A (en) * | 2016-08-01 | 2016-11-09 | 山西省交通科学研究院 | The rotary friction coefficient tester of bituminous paving of simulated rainfall and method of testing thereof |
| CN106290145A (en) * | 2016-08-01 | 2017-01-04 | 山西省交通科学研究院 | The bituminous paving friction coefficient tester of a kind of simulated rainfall and method of testing thereof |
| CN106092875B (en) * | 2016-08-01 | 2019-01-25 | 山西省交通科学研究院 | The rotary friction coefficient tester of the bituminous pavement of simulated rainfall and its test method |
| CN109632550A (en) * | 2018-12-24 | 2019-04-16 | 长安大学 | A kind of wear hardness comparative test device and test method |
| CN109724893A (en) * | 2019-03-18 | 2019-05-07 | 广东华路交通科技有限公司 | The test device and method of ultra-thin wearing layer endurance quality in a kind of testing tunnel |
| CN110231283A (en) * | 2019-07-03 | 2019-09-13 | 西安建筑科技大学 | Dynamic rotary friction coefficient tester |
| CN113218332A (en) * | 2021-04-30 | 2021-08-06 | 长安大学 | Evaluation method of macro texture of sand-accumulated asphalt pavement based on rainfall condition |
| CN113218332B (en) * | 2021-04-30 | 2023-06-23 | 长安大学 | Evaluation method for macroscopic texture of sand accumulation asphalt pavement based on rainfall condition |
| CN116479727A (en) * | 2023-06-21 | 2023-07-25 | 中交二公局工程检测技术有限公司 | Road surface construction quality monitoring device |
| CN116479727B (en) * | 2023-06-21 | 2023-10-20 | 中交二公局工程检测技术有限公司 | Road surface construction quality monitoring device |
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Open date: 20090415 |