CN110618090A - Road surface skid resistance testing arrangement - Google Patents
Road surface skid resistance testing arrangement Download PDFInfo
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- CN110618090A CN110618090A CN201910925243.9A CN201910925243A CN110618090A CN 110618090 A CN110618090 A CN 110618090A CN 201910925243 A CN201910925243 A CN 201910925243A CN 110618090 A CN110618090 A CN 110618090A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/02—Measuring coefficient of friction between materials
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Abstract
The invention discloses a road surface anti-skid performance testing device, and relates to the technical field of road detection. The device comprises a base, wherein a support is fixed on the upper surface of the base through a support rod, a lifting push rod is fixed on the upper surface of the support, a cross beam is fixed at the top end of the lifting push rod, a slide rail is fixed on the side surface of the cross beam, a sliding table is connected to the surface of the slide rail in a sliding mode, a tension sensor is fixed at the top end of the sliding table through a fixing piece, a transverse force measuring push rod is horizontally fixed at the top end of the cross beam, one end of the transverse force measuring push rod is fixedly connected with the tension sensor, a rotating shaft. The invention can control the deflection angle of the wheels through the rotation of the rotating shaft, measure the friction force of the road surface in each direction, comprehensively analyze the skid resistance of the road surface, has higher reliability of the measuring result, can control the pressure of the wheels in a lifting way, has strong flexibility and controllability of the measuring condition, has high measuring efficiency, is beneficial to forming contrast and improves the accuracy of the measuring result.
Description
Technical Field
The invention belongs to the technical field of road detection, and particularly relates to a road surface anti-skid performance testing device.
Background
Research shows that the occurrence of traffic accidents is directly related to the attenuation of the skid resistance of the road surface. Therefore, the anti-skid capability of the road surface is accurately evaluated, a basis can be provided for determining the safe driving speed range and formulating the road maintenance scheme, the driving safety can be improved, and the maintenance cost can be reduced. The method is simple, but because of pure manual operation, the artificial error is too large, the method lacks practical operation standards, and can not meet the requirements of tests in road departments in China. And a pendulum type friction meter, a Mu-meter and SCRIM transverse force coefficient testing system, a Gristett friction coefficient meter, a dynamic rotation friction coefficient testing system and the like are adopted to test the friction coefficient of the road surface. The road surface friction coefficient can be divided into a longitudinal friction coefficient and a transverse friction coefficient (the transverse force coefficient is mainly detected in China). The longitudinal friction coefficient determines the sliding distance of the vehicle during braking, and the good longitudinal friction coefficient has a determining function on avoiding rear-end collision traffic accidents; the transverse friction coefficient influences the direction control capability of the vehicle, and the good transverse friction coefficient can reduce traffic accidents caused by sideslip of the curve.
At present, the anti-skid performance is judged by measuring the transverse force coefficient in the prior art in China, and the detection of the transverse force coefficient SFC needs to adopt a bearing vehicle, a transverse force testing device, a water supply device, a main control system and an accessory part. The existing testing device needs vehicle traction in measurement, is suitable for measuring a longer road section, is not suitable for stepping point testing, has poor measurement flexibility, cannot flexibly control variables to form measurement contrast, and has low detection efficiency.
Disclosure of Invention
The invention aims to provide a road surface anti-skid performance testing device which can flexibly control the measuring conditions and is suitable for short-distance measurement.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a pavement anti-skid performance testing device, which comprises a base, wherein a bracket is fixed on the upper surface of the base through a support rod, a lifting push rod is fixed on the upper surface of the bracket, a cross beam is fixed at the top end of the lifting push rod, a slide rail is fixed on the side surface of the cross beam, a slide table is connected on the surface of the slide rail in a sliding manner, a tension sensor is fixed at the top end of the slide table through a fixing part, a transverse force measuring push rod is horizontally fixed at the top end of the cross beam, one end of the transverse force measuring push rod is fixedly connected with the tension sensor, a rotating shaft is vertically rotated at the bottom end of the slide table, a driving device in transmission connection with the rotating shaft is fixed at the bottom end of the sliding table, an inner cavity is arranged at the bottom end of the rotating, the bottom end of the wheel carrier is rotatably connected with a wheel, and the surface of the bracket is fixed with an electric cabinet.
Furthermore, the driving device comprises a motor, and one end of an output shaft of the motor is in transmission connection with the rotating shaft through a pair of transmission gears.
Furthermore, flanges are fixedly arranged on the circumferential surfaces of the rotating shaft and the wheel carrier, and a spring is sleeved between the rotating shaft and the flange of the wheel carrier.
Furthermore, the lifting push rod and the transverse force measuring push rod are both electric push rods.
Further, the bottom end of the base is rotatably connected with a universal wheel, screw support legs vertically penetrate through the surface of the base, and the screw support legs are in threaded connection with the base.
Further, a bubble level ruler is fixed on the surface of the base.
The invention has the following beneficial effects:
the invention can control the deflection angle of the wheels through the rotation of the rotating shaft, measure the friction force of the road surface in each direction, comprehensively analyze the skid resistance of the road surface, has higher reliability of the measuring result, can control the pressure of the wheels in a lifting way, has strong flexibility and controllability of the measuring condition, has high measuring efficiency, is beneficial to forming contrast and improves the accuracy of the measuring result.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a road surface anti-skid property testing device according to the present invention;
fig. 2 is a schematic view of a connection structure of the rotating shaft and the wheel carrier.
In the drawings, the components represented by the respective reference numerals are listed below:
1-base, 2-support rod, 3-support, 4-lifting push rod, 5-crossbeam, 6-slide rail, 7-sliding table, 8-tension sensor, 9-transverse force-measuring push rod, 10-rotating shaft, 11-pressure sensor, 12-ejector rod, 13-pressing block, 14-wheel carrier, 15-wheel, 16-electric cabinet, 17-motor, 18-transmission gear, 19-spring, 20-universal wheel, 21-screw rod support foot and 22-bubble level ruler.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the invention is a road surface anti-skid performance testing device, comprising a base 1, a support 3 is fixed on the upper surface of the base 1 through a support rod 2, a lifting push rod 4 is fixed on the upper surface of the support 3, a cross beam 5 is fixed on the top end of the lifting push rod 4, a slide rail 6 is fixed on the side surface of the cross beam 5, a sliding table 7 is connected on the surface of the slide rail 6 in a sliding manner, a tension sensor 8 is fixed on the top end of the sliding table 7 through a fixing piece, a transverse force measuring push rod 9 is horizontally fixed on the top end of the cross beam 5, one end of the transverse force measuring push rod 9 is fixedly connected with the tension sensor 8, a rotating shaft 10 is vertically rotated at the bottom end of the sliding table 7, the rotating shaft 10 is rotatably connected with the sliding table 7 through a bearing, a driving device which, the bottom end of the rotating shaft 10 is provided with an inner cavity, the top end of the inner cavity is fixedly provided with a pressure sensor 11, the bottom end of the rotating shaft 10 is vertically matched with an ejector rod 12 in a sliding manner, the ejector rod 12 is a polygonal rod, only axial sliding occurs between the ejector rod 12 and the rotating shaft 10, circumferential deviation cannot be generated, the top end of the ejector rod 12 is fixedly provided with a pressing block 13, the bottom end of the ejector rod 12 is fixedly provided with a wheel carrier 14, the bottom end of the wheel carrier 14 is rotatably connected with a wheel 15, the surfaces of the rotating shaft 10 and the wheel carrier 14 are.
The lifting push rod 4 and the transverse force measuring push rod 9 are electric push rods, the electric cabinet 16 is fixed on the surface of the support 3, a power module and a PLC (programmable logic controller) are arranged in the electric cabinet 16, a control switch is arranged outside the electric cabinet 16, the motor 17, the lifting push rod 4 and the transverse force measuring push rod 9 are respectively connected with the PLC, and the motor 17, the lifting push rod 4 and the transverse force measuring push rod 9 are controlled by the control switch to move for testing. And a force measuring system with a display screen is fixed on the surface of the electric cabinet 16, the force measuring system is respectively connected with output cables of the pressure sensor 11 and the tension sensor 8, and data measured by the two sensors are transmitted to the force measuring system for calculation and display.
Wherein, base 1 bottom is rotated and is connected with universal wheel 20, and the vertical screw rod stabilizer blade 21 that runs through in base 1 surface, screw rod stabilizer blade 21 and base 1 threaded connection, base 1 fixed surface have the bubble level bar 22.
The testing method or principle of the testing device is as follows: the device can test the transverse friction force, the lateral friction force and the vertical force of a certain section of road surface, so that the skid resistance of the road surface is comprehensively analyzed, during testing, the device is horizontally supported and jacked up through the screw support legs 21, the lifting push rod 4 is started through the switch to drive the cross beam 5 to descend, after the wheels 15 contact the ground, the cross beam continues to descend for a section, the ejector rod 12 is jacked up to extrude the pressure sensor 11 through the pressing block 13, the data measured by the pressure sensor 11 can display the measured vertical force on the display of the force measuring system, and during testing of different road sections, the friction force can be tested under the same vertical pressure selectively to form comparison; the motor 17 is started to drive the rotating shaft 10 to rotate, the wheel 15 can be rotated to the advancing direction to be the same as the stretching direction of the transverse force measuring push rod 9, the deflection angle of the wheel 15 is 0 degrees at the moment, the wheel 15 is pulled to advance for a certain distance through the transverse force measuring push rod 9, so that the transverse force is measured through the tension sensor 8, the transverse friction force is measured by the measuring system according to the transverse force and the vertical force, and the transverse force coefficient SFC can be obtained as the deflection angle of the wheel 15 and the advancing direction is 0 and no lateral component force exists; the deflection angle of the wheel 15 can be set to be any angle between 0 and 90 degrees, then the test is carried out, at the moment, the value measured by the tension sensor 8 is the resultant force of the lateral offset friction force and the transverse force of the wheel 15, the direction-measuring force can be calculated through the angle relation, and the lateral force coefficient is obtained, so that the skid resistance of the road surface in all directions can be measured.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (6)
1. The utility model provides a road surface cling compound capability test device, includes base (1), its characterized in that: the upper surface of the base (1) is fixed with a support (3) through a support rod (2), the upper surface of the support (3) is fixed with a lifting push rod (4), the top end of the lifting push rod (4) is fixed with a crossbeam (5), the side surface of the crossbeam (5) is fixed with a slide rail (6), the surface of the slide rail (6) is connected with a slide table (7) in a sliding manner, the top end of the slide table (7) is fixed with a tension sensor (8) through a fixing part, the top end of the crossbeam (5) is horizontally fixed with a transverse force measurement push rod (9), one end of the transverse force measurement push rod (9) is fixedly connected with the tension sensor (8), the bottom end of the slide table (7) vertically rotates to form a rotating shaft (10), the bottom end of the slide table (7) is fixed with a driving device in transmission connection with the rotating shaft (10), the bottom, the bottom end of the rotating shaft (10) is vertically matched with an ejector rod (12) in a sliding mode, a pressing block (13) is fixed to the top end of the ejector rod (12), a wheel carrier (14) is fixed to the bottom end of the ejector rod (12), wheels (15) are rotatably connected to the bottom end of the wheel carrier (14), and an electric cabinet (16) is fixed to the surface of the support (3).
2. The device for testing the skid resistance of the pavement according to claim 1, wherein the driving device comprises a motor (17), and one end of an output shaft of the motor (17) is in transmission connection with the rotating shaft (10) through a pair of transmission gears (18).
3. The device for testing the skid resistance of the pavement according to claim 1, wherein the peripheral surfaces of the rotating shaft (10) and the wheel carrier (14) are fixedly provided with flanges, and a spring (19) is sleeved between the rotating shaft (10) and the flanges of the wheel carrier (14).
4. The device for testing the skid resistance of the pavement according to claim 1, wherein the lifting push rod (4) and the transverse force measuring push rod (9) are both electric push rods.
5. The device for testing the skid resistance of the pavement according to claim 1, wherein a universal wheel (20) is rotatably connected to the bottom end of the base (1), a screw rod supporting leg (21) vertically penetrates through the surface of the base (1), and the screw rod supporting leg (21) is in threaded connection with the base (1).
6. The device for testing the skid resistance of the pavement according to claim 1, wherein a bubble level (22) is fixed on the surface of the base (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910925243.9A CN110618090A (en) | 2019-09-27 | 2019-09-27 | Road surface skid resistance testing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910925243.9A CN110618090A (en) | 2019-09-27 | 2019-09-27 | Road surface skid resistance testing arrangement |
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| Publication Number | Publication Date |
|---|---|
| CN110618090A true CN110618090A (en) | 2019-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910925243.9A Withdrawn CN110618090A (en) | 2019-09-27 | 2019-09-27 | Road surface skid resistance testing arrangement |
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| CN (1) | CN110618090A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111751271A (en) * | 2020-07-07 | 2020-10-09 | 吉小龙 | Road surface skid resistance decay detection device |
| CN113588544A (en) * | 2021-08-03 | 2021-11-02 | 中国港湾工程有限责任公司 | Asphalt pavement skid resistance detection equipment and detection method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05172664A (en) * | 1991-12-25 | 1993-07-09 | Yachiyo Seisakusho:Kk | Sliding friction force measuring apparatus |
| CN101000282A (en) * | 2006-12-15 | 2007-07-18 | 哈尔滨工业大学 | Multifunction test device for wheel motion performance of planetary detection robot |
| 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 |
| CN101995339A (en) * | 2010-10-11 | 2011-03-30 | 山东交通学院 | Multiple-degree-of-freedom vehicle dynamics testing platform with road spectrum analog function |
| 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 |
| CN208060067U (en) * | 2018-04-18 | 2018-11-06 | 北京市路兴公路新技术有限公司 | A kind of trailer structure monocycly sideway force coefficient routine investigation machine |
| CN209311302U (en) * | 2018-12-24 | 2019-08-27 | 长安大学 | A kind of pavement skid resistance ability attenuation law test specimen rolling device |
-
2019
- 2019-09-27 CN CN201910925243.9A patent/CN110618090A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05172664A (en) * | 1991-12-25 | 1993-07-09 | Yachiyo Seisakusho:Kk | Sliding friction force measuring apparatus |
| CN101000282A (en) * | 2006-12-15 | 2007-07-18 | 哈尔滨工业大学 | Multifunction test device for wheel motion performance of planetary detection robot |
| 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 |
| CN101995339A (en) * | 2010-10-11 | 2011-03-30 | 山东交通学院 | Multiple-degree-of-freedom vehicle dynamics testing platform with road spectrum analog function |
| 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 |
| CN208060067U (en) * | 2018-04-18 | 2018-11-06 | 北京市路兴公路新技术有限公司 | A kind of trailer structure monocycly sideway force coefficient routine investigation machine |
| CN209311302U (en) * | 2018-12-24 | 2019-08-27 | 长安大学 | A kind of pavement skid resistance ability attenuation law test specimen rolling device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111751271A (en) * | 2020-07-07 | 2020-10-09 | 吉小龙 | Road surface skid resistance decay detection device |
| CN111751271B (en) * | 2020-07-07 | 2023-08-08 | 吉小龙 | Road surface antiskid performance decay detection device |
| CN113588544A (en) * | 2021-08-03 | 2021-11-02 | 中国港湾工程有限责任公司 | Asphalt pavement skid resistance detection equipment and detection method thereof |
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Application publication date: 20191227 |