CN109507105A - A kind of road antiskid Performance Test System and its test method - Google Patents
A kind of road antiskid Performance Test System and its test method Download PDFInfo
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- CN109507105A CN109507105A CN201811367955.5A CN201811367955A CN109507105A CN 109507105 A CN109507105 A CN 109507105A CN 201811367955 A CN201811367955 A CN 201811367955A CN 109507105 A CN109507105 A CN 109507105A
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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Abstract
The invention discloses a kind of road antiskid Performance Test System and test methods, including test carriage system, acceleration system, transition system and detection system；Utilize the acceleration system being made of acceleration system track and the acceleration field coil being set on acceleration system track, the test carriage system being made of test vehicle main body and the test carriage guide wheel being arranged in test vehicle main body is accelerated, after so that test carriage system is reached predetermined speed, then utilize the transition system for playing transitional function is connect with acceleration system track will be on test carriage body transition to road to be tested, utilize the real-time speed for the speed detector detection test vehicle main body being set in test vehicle main body, to obtain the critical data in test process, as a result accurate, it is easy to detect.Weight known per se and coefficient of friction are measured using test simultaneously, so as to quickly obtain the relation curve of speed and dynamic friction coefficient.
Description
Technical field
The invention belongs to road test technical fields, and in particular to a kind of road antiskid Performance Test System and its test side
Method.
Background technique
The antiskid performance of highway pavement and traffic safety are closely related, and road management department needs periodically to built highway
The test for carrying out antiskid performance, needs to carry out the examination of antiskid performance for new highway.It being capable of accurate objectively road pavement
The equipment and matched method of antiskid performance Novel clock sign just show most important.
Currently used for detect surface friction coefficient equipment there are mainly three types of, be respectively portable pendulum tester, cornering ratio test
Vehicle, dynamic friction coefficient analyzer.
Portable pendulum tester is the Typical Representative of fixed-point type coefficient of friction detection device mainly for detection of the coefficient of friction on road surface.
Its working principle is that being carried out by the pendulum by bottom surface equipped with one piece of rubber sliding block from the free bottom of certain altitude, sliding block and road surface
Contact, and swing back into certain altitude.Due to the presence of frictional resistance, backswing height is smaller, and the coefficient of friction on road surface is bigger.Pendulum
Formula instrument be standardized experiment utensil, be suitable for laboratory research and on-site measurement, advantage be it is easy to operate, intuitively；The disadvantage is that measuring point
At random, subjective, representative undesirable, experimental data is influenced by operator's technical ability, and error is larger.
Cornering ratio measuring method need to using Large-scale professional equipment vehicle measure, be will test take turns be set to direction of traffic at
Certain angle, the perpendicular lateral frictional resistance of same experiment wheel plane for generating it, this power and experiment wheel bear vertical load it
Road surface impedance than being cornering ratio, when it can characterize the practical braking of vehicle or break away.Cornering ratio is direct
Reflect that the index of road table antiskid performance, advantage are a large amount of continuous monitorings；The disadvantage is that somewhat expensive, the examined environment of data,
The factors such as speed, measurement tire are affected.
The measuring principle of dynamic friction coefficient analyzer are as follows: disk is discharged on road surface from eminence, and disk is in pavement friction
Gradually be decelerated under the action of power it is static, in the process continuously record rubber sliding block and road surface between frictional force F, if rubber
Normal pressure on smooth piece is W, dynamic friction coefficient DF=F/W.It can be realized continuous measurement, obtain speed and dynamic friction system
Several relation curves.But disk starting velocity can not accurately control, calculated result inaccuracy.
Summary of the invention
The purpose of the present invention is to provide a kind of road antiskid Performance Test System and its test methods, to overcome existing skill
The deficiency of art.
In order to achieve the above objectives, the present invention adopts the following technical scheme:
A kind of road antiskid Performance Test System, including test carriage system, acceleration system, transition system and detection system；
Test carriage system includes the test carriage guide wheel testing vehicle main body and being arranged in test vehicle main body, test carriage guide wheel
By connect on the outside of wheel frame and test vehicle main body, test carriage guide wheel can relative idler frame rotate, test carriage bottom part body sets
There is frictional layer, test carriage guide wheel is equipped with groove；The speed being equipped with for incuding the real-time speed of test carriage is tested in vehicle main body
The least significant end of sensor, test carriage guide wheel and wheel frame is higher than frictional layer bottom, and test vehicle main body is permanent magnet；
Acceleration system includes acceleration system track and the acceleration field coil being set on acceleration system track, accelerates system
Track of uniting is equipped with two rows of protrusions with the cooperation of test carriage guide wheel groove, and test carriage guide wheel is located at two rows of acceleration system rails when acceleration
Between the protrusion in road；
Transition system includes the transition system track that one end is connected to acceleration system track one end, is set on transition system track
There is multiple rows of transition system roller bearing；The other end of transition system track connects road to be tested；
Detection system includes temperature detector and the signal receiver for receiving test carriage subject detection speed signal
And the controller being connect with signal receiver；The test vehicle main body speed of service that controller is received for signal receiver into
Row storage.
Further, velocity sensor is distributed at left and right sides of test vehicle main body.
Further, the frictional layer uses rubber friction layer.
Further, acceleration system track accelerates guide rail using self-styled closed-loop shaped, and it includes interior that self-styled closed-loop shaped, which accelerates guide rail,
Guide rail and outer guide, internal rail outside are respectively equipped with protrusion rail of the circle for cooperating with test carriage guide wheel groove with outer rail inside
Road.
Further, it includes ring segment and straight trip section that self-styled closed-loop shaped, which accelerates guide rail, and ring segment and straight trip section pass through connection
Block rigid connection；Accelerate field coil to be set to self-styled closed-loop shaped to accelerate in the straight trip section of guide rail；Self-styled closed-loop shaped accelerates guide rail
It is connected to acceleration system pedestal by connection frame, further includes the acceleration system power-supply system being connect with acceleration field coil；Accelerate
System base lower end is equipped with multiple fixed columns；Straight trip section on protrusion track it is scalable be set on acceleration system track, transition
System track is set to acceleration system track straight trip section lower end.
Further, acceleration system track accelerates guide rail using straight trip, accelerates that multiple acceleration magnetic are arranged on guide rail in straight trip
Field coil.
Further, detection system further includes the test macro track for being oriented to test vehicle main body, test system
Track of uniting is equipped with the guide-track groove with the test carriage guide wheel cooperation in test vehicle main body, and guide-track groove is equipped with protruding block, protruding block
It is placed in the groove of test carriage guide wheel, and the top and bottom of protruding block do not contact with the upper lower wall of test carriage guide wheel groove.
Further, test macro track passes through the consolidation connection of test macro connecting rod.
A kind of road antiskid performance test methods, comprising the following steps:
Step 1), acquisition test vehicle main body initially set movement velocity；
Step 2), the test vehicle main body that will acquire setting initial motion speed carry out sliding test on road surface to be measured, obtain
The movement speed curve of test vehicle main body and path temperature value to be tested；To which road surface to be measured be calculated according to slide coefficient
Anti-performance index.
Compared with prior art, the invention has the following beneficial technical effects:
A kind of road antiskid Performance Test System of the present invention, including test carriage system, acceleration system, transition system and detection
System；Using the acceleration system being made of acceleration system track and the acceleration field coil being set on acceleration system track,
The test carriage system being made of test vehicle main body and the test carriage guide wheel being arranged in test vehicle main body is accelerated, makes to survey
After test run system reaches predetermined speed, then utilizes and connect the transition system for playing transitional function with acceleration system track for test
Vehicle main body is transitioned on road to be tested, utilizes the reality for the speed detector detection test vehicle main body being set in test vehicle main body
Shi Sudu to obtain the critical data in test process, while measuring weight known per se and coefficient of friction using test, from
And the relation curve of speed and dynamic friction coefficient can be quickly obtained, it is as a result accurately, easy to detect.On acceleration system track
Equipped with two rows of protrusions with the cooperation of test carriage guide wheel groove, test carriage guide wheel is located at the protrusion of two rows of acceleration system tracks when acceleration
Between, guarantee test vehicle main body accelerating stability.Present apparatus structure is simple, and easy to accomplish, price material benefit.
Further, velocity sensor is distributed at left and right sides of test vehicle main body, detects vehicle by two velocity sensors
Speed, as a result accurately and reliably.
Further, the frictional layer uses rubber friction layer, wear-resisting, obtains stable friction factor.
Further, acceleration system track accelerates guide rail using self-styled closed-loop shaped, saves space.
Detailed description of the invention
Fig. 1 is test carriage system structure diagram.
Fig. 2 is test carriage top view.
Fig. 3 is test carriage perspective view.
Fig. 4 is acceleration system structural schematic diagram.
Fig. 5 is acceleration system perspective view.
Fig. 6 is transition system structural schematic diagram.
Fig. 7 is detection system structure.
Fig. 8 is test macro overall structure diagram of the present invention.
Fig. 9 is test macro overall structure stereogram of the present invention.
Wherein, 1, test carriage guide wheel；2, vehicle main body is tested；3, velocity sensor；4, wheel frame；5, frictional layer；6, accelerate
System base；7, accelerate field coil；8, connection frame；9, acceleration system power-supply system；10, fixed column；11, transition system rail
Road；12, transition system roller bearing；13, test macro connecting rod；14, test macro track；15, temperature detector；16, accelerate
System track.
Specific embodiment
The invention will be described in further detail with reference to the accompanying drawing:
As shown, a kind of road antiskid Performance Test System, including test carriage system, acceleration system, transition system and
Detection system；
As shown in Figure 1 to Figure 3, test carriage system includes the test testing vehicle main body 2 and being arranged in test vehicle main body 2
Vehicle guide wheel 1, for test carriage guide wheel 1 by connecting on the outside of wheel frame 4 and test vehicle main body 2, test carriage guide wheel 1 being capable of relative idler frame
4 rotations, test 2 bottom of vehicle main body are equipped with frictional layer 5, and test carriage guide wheel 1 is equipped with groove；It tests and is equipped with speed in vehicle main body 2
Sensor 3 can export the linear speed of a large amount of different moments for incuding the real-time speed of test carriage within the shorter period
Degree, data are output in designated computer by radio transmitting device, and velocity sensor 3 is distributed in 2 left and right sides of test vehicle main body；It surveys
The least significant end of test run guide wheel 1 and wheel frame 4 is higher than 5 bottom of frictional layer；Test vehicle main body 2 is permanent magnet；
The frictional layer uses rubber friction layer；Velocity sensor is connected with radio transmitting device, for testing vehicle speed
Spend the transmission of signal.
As shown in Figure 4, Figure 5, acceleration system includes acceleration system track 16 and is set on acceleration system track 16
Accelerate field coil 7, acceleration system track 16 is equipped with two rows of protrusions with the cooperation of 1 groove of test carriage guide wheel, and when acceleration tests
Vehicle guide wheel 1 is located between the protrusion of two rows of acceleration system tracks 16；By accelerating field coil 7 to generate magnetic field to test carriage system
Accelerate；
Transition system includes the transition system track 11 that one end is connected to 16 one end of acceleration system track, transition system track
11 are equipped with multiple rows of transition system roller bearing 12, guarantee sliding by 11 smooth transition of transition system track from acceleration system track 16
Out；The other end of transition system track 11 connects road to be tested；
Detection system includes temperature detector 15 and detects the signal reception of speed signal for receiving test vehicle main body 2
Device and the controller being connect with signal receiver；Controller is for being stored and being handled to all data of detection；Pass through
The path temperature and car speed detected draws test vehicle main body 2 on road surface to be tested and slides curve graph；Utilize existing dynamic
The antiskid performance parameter of road to be tested is calculated in the measuring principle of frictionmeter.
Specifically, acceleration system track 16 accelerates guide rail using self-styled closed-loop shaped, it includes interior that self-styled closed-loop shaped, which accelerates guide rail,
Guide rail and outer guide, internal rail outside is respectively equipped with circle protrusion track with outer rail inside, for matching with 1 groove of test carriage guide wheel
It closes；It includes ring segment and straight trip section that self-styled closed-loop shaped, which accelerates guide rail, and ring segment and straight trip section are rigidly connected by link block 17；Add
Fast field coil 7 is set to self-styled closed-loop shaped and accelerates in the straight trip section of guide rail；Self-styled closed-loop shaped accelerates guide rail to connect by connection frame 8
It is connected to acceleration system pedestal 6, further includes the acceleration system power-supply system 9 being connect with acceleration field coil 7；Acceleration system pedestal 6
Lower end is equipped with multiple fixed columns 10；Transition system track 11 is set to 16 lower end of acceleration system track；
Acceleration system track 16 accelerates guide rail using straight trip, accelerates that multiple acceleration field coils 7 are arranged on guide rail in straight trip；
Accelerate guide rail as acceleration system track using straight trip, the connection structure of transition system Yu acceleration system track can be simplified, protects
Demonstrate,prove the stability of connection.
Protrusion track has one section can stretch, i.e., protrude track by retraction makes test carriage from acceleration system using gravity
In test macro entered by transition system.
Specifically, detection system further includes the test macro track 14 for being oriented to test vehicle main body, test system
Track 14 of uniting is equipped with the guide-track groove cooperated with the test carriage guide wheel 1 in test vehicle main body 2, and guide-track groove is equipped with protruding block, convex
In the bittiness groove for being placed in test carriage guide wheel 1, and upper lower wall of the top and bottom of protruding block not with 1 groove of test carriage guide wheel connects
Touching, guarantee test vehicle main body 2 in the process of running not tested person system track 14 along gravity direction influence, by protruding block pair
Test vehicle main body 2 is limited moving horizontally direction, guarantees that test vehicle main body 2 can be moved smoothly naturally.Test macro
Track 14 passes through the consolidation connection of test macro connecting rod 13；Test carriage is controlled on test road surface by limitation test carriage guide wheel 1
On running track, minimize the frictional force between test carriage guide wheel 1 and test macro track 14.14, test macro track
Factually border road conditions can be set to straight trip track or self-enclosed circular orbit.
A kind of road antiskid Performance Test System, comprising the following steps:
Step 1) utilizes test macro of the present invention, the initial setting movement velocity of acquisition test vehicle main body 2；
Step 2), the test vehicle main body 2 that will acquire setting initial motion speed carry out sliding test on road surface to be measured, obtain
The movement speed curve of test vehicle main body 2 and path temperature value to be tested；To which road to be measured be calculated according to slide coefficient
Face anti-performance index.
It is described further with reference to the accompanying drawing to structural principle of the invention and using step:
It will test test macro track and 16 keeping parallelism of acceleration system track in system, by test carriage telescopic convex
It is put into acceleration system at errant, acceleration system power-supply system 9 starts, and powers to acceleration system coil 7, keeps its generation powerful
Magnetic field, magnetic field generates thrust to the permanent magnet in test carriage, and the groove among test carriage guide wheel 1 is stuck in acceleration system track 4
On tongue, keep test carriage hanging, accelerate repeatedly in the circuit of acceleration system.What velocity sensor 3 was inscribed when exporting each
Test vehicle speed；When test carriage is accelerated to the speed of setting, telescopic tongue retraction, test carriage in acceleration system track
Downward speed is generated under gravity, and test carriage enters transition system, by transition system roller bearing 12, enters test
In system track, in test macro track, test carriage generates on fixed direction with road surface along test macro track 14
Sliding friction, the speed of real-time Transmission various time points, writing speed with the time change curve；And it is set using temperature measurement
Standby 15 output pavement temperatures, due to 1 rolling friction very little of test carriage guide wheel, and the surface of test macro track 14 light as far as possible
Sliding, therefore, it is considered that only effect has the force of sliding friction on road surface Yu test carriage bottom on test carriage, the derivative of speed at any time is
The acceleration that force of sliding friction generates.I.e. coefficient of friction * test carriage quality * acceleration of gravity=test carriage quality * test carriage exists
Acceleration in test macro.Data of the test carriage in a test system in straight way are generally taken to be taken as data, and test carriage
Subject to when the direction of motion is identical as direction of traffic.
Claims (9)
1. a kind of road antiskid Performance Test System, which is characterized in that including test carriage system, acceleration system, transition system and
Detection system；
Test carriage system includes the test carriage guide wheel (1) of test vehicle main body (2) and setting in test vehicle main body (2), test
For vehicle guide wheel (1) by connecting on the outside of wheel frame (4) and test vehicle main body (2), test carriage guide wheel (1) being capable of relative idler frame (4)
Rotation, test vehicle main body (2) bottom are equipped with frictional layer (5), and test carriage guide wheel (1) is equipped with groove；It is set in test vehicle main body (2)
There are the velocity sensor (3) of the real-time speed for incuding test carriage, the least significant end height of test carriage guide wheel (1) and wheel frame (4)
In frictional layer (5) bottom, testing vehicle main body (2) is permanent magnet；
Acceleration system includes acceleration system track (16) and the acceleration field coil that is set on acceleration system track (16)
(7), acceleration system track (16) is equipped with two rows of protrusions with the cooperation of test carriage guide wheel (1) groove, test carriage guide wheel when acceleration
(1) it is located between the protrusion of two rows of acceleration system tracks (16)；
Transition system includes the transition system track (11) that one end is connected to acceleration system track (16) one end, transition system track
(11) it is equipped with multiple rows of transition system roller bearing (12)；The other end of transition system track (11) connects road to be tested；
Detection system includes that temperature detector (15) and the signal for receiving test vehicle main body (2) detection speed signal receive
Device and the controller being connect with signal receiver；Test vehicle main body (2) operation that controller is received for signal receiver
Speed is stored.
2. a kind of road antiskid Performance Test System according to claim 1, which is characterized in that velocity sensor (3) point
It is distributed at left and right sides of test vehicle main body (2).
3. a kind of road antiskid Performance Test System according to claim 1, which is characterized in that the frictional layer (5) is adopted
Use rubber friction layer.
4. a kind of road antiskid Performance Test System according to claim 1, which is characterized in that acceleration system track (16)
Guide rail is accelerated using self-styled closed-loop shaped, it includes interior guide rail and outer guide that self-styled closed-loop shaped, which accelerates guide rail, on the outside of internal rail and in outer rail
Side is respectively equipped with protrusion track of the circle for cooperating with test carriage guide wheel (1) groove.
5. a kind of road antiskid Performance Test System according to claim 4, which is characterized in that self-styled closed-loop shaped acceleration is led
Rail includes ring segment and straight trip section, and ring segment and straight trip section are rigidly connected by link block (17)；Accelerate field coil (7) setting
In in the straight trip section that self-styled closed-loop shaped accelerates guide rail；Self-styled closed-loop shaped accelerates guide rail to be connected to acceleration system by connection frame (8)
Pedestal (6) further includes the acceleration system power-supply system (9) connecting with acceleration field coil (7)；Acceleration system pedestal (6) lower end
Equipped with multiple fixed columns (10)；Straight trip section on protrusion track it is scalable be set on acceleration system track (16), transition system
Track (11) is set to acceleration system track (16) straight trip section lower end.
6. a kind of road antiskid Performance Test System according to claim 4, which is characterized in that acceleration system track (16)
Guide rail is accelerated using straight trip, accelerates that multiple acceleration field coils (7) are arranged on guide rail in straight trip.
7. a kind of road antiskid Performance Test System according to claim 1, which is characterized in that detection system further includes using
In the test macro track (14) being oriented to test vehicle main body, test macro track (14) is equipped with and test vehicle main body
(2) guide-track groove of test carriage guide wheel (1) cooperation on, guide-track groove are equipped with protruding block, and protruding block is placed in test carriage guide wheel (1)
In groove, and the top and bottom of protruding block do not contact with the upper lower wall of test carriage guide wheel (1) groove.
8. a kind of road antiskid Performance Test System according to claim 1, which is characterized in that test macro track (14)
It is consolidated and is connected by test macro connecting rod (13).
9. a kind of road antiskid performance test methods based on road antiskid Performance Test System belonging to claim 1, special
Sign is, comprising the following steps:
Step 1), acquisition test vehicle main body (2) initially set movement velocity；
Step 2), the test vehicle main body (2) that will acquire setting initial motion speed carry out sliding test on road surface to be measured, obtain and survey
The movement speed curve of test run main body (2) and path temperature value to be tested；To which road to be measured be calculated according to slide coefficient
Face anti-performance index.
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| CN114324144A (en) * | 2021-12-27 | 2022-04-12 | 同济大学 | Pavement self-driven skid resistance detection device and method based on paper folding-friction nano power generation technology |
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| CN114324144B (en) * | 2021-12-27 | 2023-08-29 | 同济大学 | Road surface self-driven skid resistance detection device and method based on paper folding-friction nano power generation technology |
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| CN109507105B (en) | 2021-06-15 |
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