CN102539314A - Frictional factor test device - Google Patents
Frictional factor test device Download PDFInfo
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- CN102539314A CN102539314A CN2011104267554A CN201110426755A CN102539314A CN 102539314 A CN102539314 A CN 102539314A CN 2011104267554 A CN2011104267554 A CN 2011104267554A CN 201110426755 A CN201110426755 A CN 201110426755A CN 102539314 A CN102539314 A CN 102539314A
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Abstract
The invention discloses a frictional factor test device, which comprises a friction unit and a data collecting unit connected with the friction unit. The friction unit comprises a test piece clamp and brackets that fix the whole device. The brackets are provided with a height lifter and a direction converter. A guide rail and a driver on the guide rail are arranged between the two brackets. The lower part of the driver is connected with a friction contact block. The data collecting unit comprises a stress conductive rod, a stress inductor and an electronic data collecting and analyzing system. The frictional factor test device of the invention can be used to test the friction factor of a self snow melt pavement of salinized materials and mainly used to evaluate the influence of water thin film at low temperature to the friction factor of pavement.
Description
Technical field
The present invention relates to the highway pavement experimental technique; Be particularly related to a kind of test pavement simulating evaluation test equipment; Can be applicable to simulate salt snow melt road surface under the low temperature condition, spray the test that various inhibition road surfaces generation thin ice effects such as coating road surface are iced in anti-freezing, can utilize the friction factor evaluation to suppress to freeze the short-term snow melt performance on road surface.
Background technology
Winter road surface accumulated snow to freeze be the difficult problem of puzzlement traffic safety always, need employ lot of manpower and material resources usually and remove ice and snow, also begun initiatively to suppress to freeze the research on road surface thus.Initiatively suppressing freezing technology is in engineering construction or overhaul road surface, initiatively adopts correlation technique in advance or in compound, add proprietary material to make the road surface have the purpose function that specific function reaches the snow melt deicing.Suppress initiatively that one of most typical application is that salt is from the snow melt road surface in the freezing technology.Salt refers in asphalt, add salt from the snow melt road surface, makes road surface itself have the melting ice and snow function.Salt is effective because of its ice-melt snow from the snow melt road surface, construction technology simply is easy to promote and is widely used.How to evaluate suppresses to freeze the road surface under low temperature condition, has to suppress the road surface and freeze and produce the emphasis problem that the effect that reduces the reduction of pavement skid resistance property is research.
Summary of the invention
The testing equipment that the object of the present invention is to provide icing friction factor evaluation of a kind of test pavement simulating low temperature moisture film and prevailing roadway friction factor to estimate; Can simulate the icing situation that produces the decline of pavement skid resistance property of road surface moisture film under low temperature environment; Suppress the road surface snow-broth at low temperatures and freeze for suppressing to freeze the road surface; Improve the research of the cling property on road surface under the low temperature condition, intuitive and reliable test figure is provided.
In order to achieve the above object, the present invention adopts following technical scheme to be achieved.
A kind of friction factor testing apparatus; It comprises friction element and the data acquisition unit that is attached thereto; Friction element comprises the support of piece fixture and fixing whole device; Height landing device is set on the support, establishes the drive unit on guide rail and the guide rail between two stands, the drive unit bottom connects the rubbing contact piece.
Described data acquisition unit comprises stressed conductive bar, stress sensor that is attached thereto and electronic data collection analysis system.
Certain distance is provided with the direction converter that the vibration-direction conversion is provided apart from two ends on the said guide rail; Drive unit from forward to the antikinesis process; Direction converter control landing friction block equipment provides the rise of friction block; Thereby avoid friction block when reverse movement, to contact and damage, and be provided with controller and install in the process of the test with control and at any time stop with test specimen.
The present invention fixes test specimen with piece fixture; Test specimen and device are become one; Straight-line driving arrangement, drive unit bottom connect the rubbing contact piece, provide the successional direction converter of test to constitute the rubbing device unit on landing device through the guide rail on appliance stand, the test stand, control device height, the guide rail, accomplish to have the friction function of the friction block that can apply variable load.The data collector that stressed conduction device, stress sensor and data collection analysis electronic system constitute gets up to analyze to obtain the friction factor of test specimen under this environment with the data aggregation of friction process.The whole testing device volume is less, can its integral body be put into environmental cabinet and confirm the test specimen friction factor under the different situations through the accurately control temperature and humidity of environmental cabinet.
Said Vidacare corp moves along guide rail, produces small friction between meeting and guide rail.
Said friction factor testing apparatus, friction element is drawn by drive unit, because space constraint, movement velocity is slower, fully the simulated roadway Frotteurism when running at high speed of getting on the car.
Said testing device for friction coefficient is measured the test specimen skin-friction coefficient, and fixedly the anchor clamps of test specimen guarantee that test specimen is in the horizontal stable state.
The present invention is placed on whole device in the controlled environmental cabinet of humiture, and test specimen surface meeting Yin Wendu, humidity difference are born the different thin ice of thickness; The contact pressure of scalable rubbing contact piece is measured the friction factor under the varying environment, for evaluation suppresses to freeze road surface short-term snow melt effect true and reliable test figure is provided.
The outstanding advantage of the present invention's technology is:
Friction element comprises provides test successional direction converter, and the friction factor of continuous coverage test specimen has reduced complicacy, variability and the discontinuity of operating automatically.
Can whole device be placed in the controlled environmental cabinet of humiture, measure the friction factor on test specimen surface under the varying environment condition, set up the correlationship of friction factor and test specimen environment temperature of living in, humidity.
Straight-line driving arrangement traction on the above-mentioned friction element utilization guide rail, driving arrangement can be the rubbing contact piece different movement velocitys is provided, and measures the friction factor of friction speed, sets up the correlationship of friction factor and movement velocity.
Description of drawings
Fig. 1 is the structural representation of a kind of friction factor testing apparatus of the present invention.
Embodiment
With reference to Fig. 1, transacter comprises: in the stress sensor 3 of stressed conductive bar 6 one ends, the data of lead conduction stress sensor are to the data collection analysis system 2 of other end connection.Through changing into electric signal to stress, again electric signal is transferred to collection and the processing that the data collection analysis electronic system is carried out data.
The rubbing device unit is connected through the drive unit 5 on the stressed conductive bar 6 with transacter, and stressed conductive bar 6 one ends connect with support 7.The rubbing device unit comprises the support 7 of fixing whole device; Support 7 is fixed on the piece fixture 10 on the test specimen 1, and two ends are fixed on the support 7 guide rail 4 that equilibrium activity is provided for the direction converter, at the landing device 8 of guide rail 4 two ends control device height and contact block contact pressure; Straight-line electrically-actuated device 5 on the guide rail 4; Electrically-actuated device 5 bottoms connect rubbing contact piece 12, and certain distance is provided with direction converter 9 reciprocating direction conversion is provided apart from two ends on guide rail 4, from the forward to the reverse process in; Direction converter 9 control landing friction block equipment 13 provide the rise of friction block; Guaranteeing that friction block does not contact with test specimen 1 when the reverse movement in order to avoid damage friction block, controlled for the warranty test process is provided with controller 11 and at any time stops with control device.
During experiment, at first regulate and fix the height of guide rail 4 two ends control device on support 7 and the landing device 8 of contact block contact pressure, make contact block all reach the contact pressure of regulation at guide rail 4 two ends.The first step is carried out experimental provision no-load running earlier, measures system friction.Promote the height of friction block through landing friction block device 13; Opening controller 11; Let friction block by testing requirements speed uniform motion; The rubbing device unit is accomplished the operation of one-period (making a round trip) automatically and is got back to initial point, transacter in this course with data storage in data collection analysis system 2, repeatedly measure the friction force of 5 of guide rail 4 and motorized motions equipment.In second step, carry out the test specimen friction factor and measure.Reduce the height of friction block through landing friction block device 13; Make the contact pressure of contact block reach the pressure of being scheduled to before the test, opening controller 11, the rubbing device unit is accomplished the operation of one-period automatically and is got back to initial point; Transacter in this course with data storage in data collection analysis system 2; Obtain friction factor through processing, repeatedly measurement is averaged and according to after the unloaded data correction, is obtained final friction factor.
Device is put in the environmental cabinet, can be through changing the friction factor under environment temperature and the moisture measurement different environment.
Claims (3)
1. measuring friction coefficient equipment; It comprises friction element and the data acquisition unit that is attached thereto; It is characterized in that friction element comprises the support (7) of piece fixture (10) and fixing whole device, height landing device (8) is set on the support; Establish the drive unit (5) on guide rail (4) and the guide rail between two stands, the drive unit bottom connects rubbing contact piece (12).
2. a kind of friction factor testing apparatus according to claim 1 is characterized in that described data acquisition unit comprises stressed conductive bar (6), stress sensor that is attached thereto (3) and electronic data collection analysis system (2).
3. a kind of friction factor testing apparatus according to claim 1; It is characterized in that; Upward certain distance is provided with the direction converter (9) that the vibration-direction conversion is provided to said guide rail (4) apart from two ends; Drive unit (5) from forward to the antikinesis process; Direction converter (9) control landing friction block equipment (13) provides the rise of friction block (12), thereby avoids friction block (12) when reverse movement, to contact and damage with test specimen (1), and is provided with controller (11) and at any time stops to control to install in the process of the test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110426755.4A CN102539314B (en) | 2011-12-15 | 2011-12-15 | Frictional factor test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110426755.4A CN102539314B (en) | 2011-12-15 | 2011-12-15 | Frictional factor test device |
Publications (2)
| Publication Number | Publication Date |
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| CN102539314A true CN102539314A (en) | 2012-07-04 |
| CN102539314B CN102539314B (en) | 2014-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110426755.4A Expired - Fee Related CN102539314B (en) | 2011-12-15 | 2011-12-15 | Frictional factor test device |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103196823A (en) * | 2013-03-13 | 2013-07-10 | 哈尔滨工业大学 | Device and method capable of directly measuring road surface sliding friction coefficient |
| CN103528946A (en) * | 2013-10-28 | 2014-01-22 | 天津工业大学 | Fabric friction coefficient measurement instrument |
| CN104181101A (en) * | 2014-09-05 | 2014-12-03 | 石家庄铁道大学 | Measuring device for steel rail surface friction coefficients |
| CN104237116A (en) * | 2014-09-12 | 2014-12-24 | 东南大学 | System and method for testing tire/road noise |
| 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 |
| CN105510224A (en) * | 2016-01-12 | 2016-04-20 | 安徽省产品质量监督检验研究院 | Flooring material slip resistance test instrument |
| CN106990009A (en) * | 2017-04-06 | 2017-07-28 | 长沙理工大学 | Highway pavement anti-freezing ice function layer surface accelerates abrasion test device and evaluation method |
| CN107677594A (en) * | 2017-09-06 | 2018-02-09 | 武汉钢铁有限公司 | A kind of metal sheet strip coefficient of sliding friction testing machine and method |
| CN108344683A (en) * | 2018-02-28 | 2018-07-31 | 刘剑 | A kind of surface friction coefficient detection device |
| CN108375541A (en) * | 2018-02-28 | 2018-08-07 | 刘剑 | A kind of road detection apparatus |
| CN108593541A (en) * | 2018-03-22 | 2018-09-28 | 深圳大学 | A kind of rubbing device and its test method of extra electric field induction |
| CN108956448A (en) * | 2018-05-28 | 2018-12-07 | 奇瑞汽车股份有限公司 | A kind of weather strip for automobile resistance to sliding detector and its application method |
| CN110044813A (en) * | 2019-04-11 | 2019-07-23 | 东南大学 | A kind of detection method of frost region bituminous pavement wide temperature field coefficient of friction |
| CN110346278A (en) * | 2019-08-23 | 2019-10-18 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | A kind of can ice dynamic friction coefficient measuring device and its application method |
| CN111024606A (en) * | 2020-02-22 | 2020-04-17 | 李庆锋 | Method for measuring road surface friction condition of travelling crane by means of drag chain |
| CN113029937A (en) * | 2021-03-03 | 2021-06-25 | 河海大学 | Tunnel asphalt pavement anti-skid performance attenuation rule testing method |
| CN115060647A (en) * | 2022-08-19 | 2022-09-16 | 北京建筑大学 | Accumulated water pavement anti-skid performance evaluation method and system |
| CN116718542A (en) * | 2023-08-08 | 2023-09-08 | 中国建筑科学研究院有限公司 | Stair railing parameter testing device and detection method |
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| CN201417246Y (en) * | 2009-04-20 | 2010-03-03 | 中国重型汽车集团唐山市宏远专用汽车有限公司 | Measuring device for transverse force friction coefficient of road |
| CN202362235U (en) * | 2011-12-15 | 2012-08-01 | 长安大学 | Simple friction coefficient test device |
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2011
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201417246Y (en) * | 2009-04-20 | 2010-03-03 | 中国重型汽车集团唐山市宏远专用汽车有限公司 | Measuring device for transverse force friction coefficient of road |
| CN101556238A (en) * | 2009-05-11 | 2009-10-14 | 中国船舶重工集团公司第七二五研究所 | Device and method for testing linear reciprocating sliding friction and abrasion |
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Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103196823A (en) * | 2013-03-13 | 2013-07-10 | 哈尔滨工业大学 | Device and method capable of directly measuring road surface sliding friction coefficient |
| CN103196823B (en) * | 2013-03-13 | 2014-12-10 | 哈尔滨工业大学 | Device and method capable of directly measuring road surface sliding friction coefficient |
| CN103528946A (en) * | 2013-10-28 | 2014-01-22 | 天津工业大学 | Fabric friction coefficient measurement instrument |
| CN104181101A (en) * | 2014-09-05 | 2014-12-03 | 石家庄铁道大学 | Measuring device for steel rail surface friction coefficients |
| CN104237116A (en) * | 2014-09-12 | 2014-12-24 | 东南大学 | System and method for testing tire/road noise |
| 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 |
| CN105510224A (en) * | 2016-01-12 | 2016-04-20 | 安徽省产品质量监督检验研究院 | Flooring material slip resistance test instrument |
| CN106990009A (en) * | 2017-04-06 | 2017-07-28 | 长沙理工大学 | Highway pavement anti-freezing ice function layer surface accelerates abrasion test device and evaluation method |
| CN107677594A (en) * | 2017-09-06 | 2018-02-09 | 武汉钢铁有限公司 | A kind of metal sheet strip coefficient of sliding friction testing machine and method |
| CN108344683A (en) * | 2018-02-28 | 2018-07-31 | 刘剑 | A kind of surface friction coefficient detection device |
| CN108375541A (en) * | 2018-02-28 | 2018-08-07 | 刘剑 | A kind of road detection apparatus |
| CN108375541B (en) * | 2018-02-28 | 2019-12-03 | 刘剑 | A kind of road detection apparatus |
| CN108344683B (en) * | 2018-02-28 | 2020-04-24 | 鲍菊芳 | Road surface friction coefficient detection device |
| CN108593541B (en) * | 2018-03-22 | 2021-01-05 | 深圳大学 | Friction device induced by external electric field and testing method thereof |
| CN108593541A (en) * | 2018-03-22 | 2018-09-28 | 深圳大学 | A kind of rubbing device and its test method of extra electric field induction |
| CN108956448A (en) * | 2018-05-28 | 2018-12-07 | 奇瑞汽车股份有限公司 | A kind of weather strip for automobile resistance to sliding detector and its application method |
| CN108956448B (en) * | 2018-05-28 | 2021-11-02 | 奇瑞汽车股份有限公司 | Automobile sealing strip sliding resistance detector and using method thereof |
| CN110044813A (en) * | 2019-04-11 | 2019-07-23 | 东南大学 | A kind of detection method of frost region bituminous pavement wide temperature field coefficient of friction |
| CN110346278A (en) * | 2019-08-23 | 2019-10-18 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | A kind of can ice dynamic friction coefficient measuring device and its application method |
| CN111024606A (en) * | 2020-02-22 | 2020-04-17 | 李庆锋 | Method for measuring road surface friction condition of travelling crane by means of drag chain |
| CN113029937A (en) * | 2021-03-03 | 2021-06-25 | 河海大学 | Tunnel asphalt pavement anti-skid performance attenuation rule testing method |
| CN115060647A (en) * | 2022-08-19 | 2022-09-16 | 北京建筑大学 | Accumulated water pavement anti-skid performance evaluation method and system |
| CN115060647B (en) * | 2022-08-19 | 2022-11-15 | 北京建筑大学 | Accumulated water pavement anti-skid performance evaluation method and system |
| CN116718542A (en) * | 2023-08-08 | 2023-09-08 | 中国建筑科学研究院有限公司 | Stair railing parameter testing device and detection method |
| CN116718542B (en) * | 2023-08-08 | 2023-10-10 | 中国建筑科学研究院有限公司 | Stair railing parameter testing device and detection method |
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