CN106769837A - Bitumen Pavement Anti-Skid Performance test platform and the method that pavement skid resistance condition is evaluated using the platform under a kind of icy conditions - Google Patents
Bitumen Pavement Anti-Skid Performance test platform and the method that pavement skid resistance condition is evaluated using the platform under a kind of icy conditions Download PDFInfo
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Abstract
Bitumen Pavement Anti-Skid Performance test platform and the method that pavement skid resistance condition is evaluated using the platform, the method that pavement skid resistance condition is evaluated the present invention relates to Bitumen Pavement Anti-Skid Performance test platform under a kind of icy conditions and using the platform under a kind of icy conditions.The invention solves the problems that road engineering lacks the problem of Bitumen Pavement Anti-Skid Performance test equipment and relevant evaluation method under icy conditions at present.Bitumen Pavement Anti-Skid Performance test platform is made up of upper bracket, test casing, generator, toothed belt transmission bearing group, hand elevating lever, transmission vertical shaft, positioning bearing, laser velocimeter sensor, wireless torque sensor, wheel loading system, spherical constant velocity cardan joint, transverse arm axle and annular charge pallet under icy conditions.The present invention in particular supports the continuous acquisition of the measurement and data under freezing conditions for the frictional behaviour detection of various experimental conditions.
Description
Technical field
Road surface is evaluated the present invention relates to Bitumen Pavement Anti-Skid Performance test platform under a kind of icy conditions and using the platform
The method of antiskid performance.
Background technology
The weather distribution of China is presented complicated variety, and the area that there are about 75% has frost period, especially in east
Backlands area, summer is warm of short duration, winter very long severe cold.Teletostage cool period, the accumulated snow of road surface is in low temperature and vehicular load
Collective effect under, easily form thin ice, threaten traffic safety.According to test, Bitumen Pavement Anti-Skid Performance is in icy conditions
It is lower to reduce by 51%~74%.Pavement skid resistance condition reduction, the brake direction steady of automobile is deteriorated, and often results in direction of traffic mistake
Control, brake failure, braking distance significantly extend, and threaten people's life and property safety.ASSOCIATE STATISTICS shows, due to frost
Traffic accident accounts for the 35% of traffic in winter accident total amount caused by pavement skid resistance condition declines；And traffic management office of the Ministry of Public Security
Investigation result to the year traffic accident death rate of China 2009 then shows that " adverse weather condition such as rain, snow, mist descends road traffic thing
Therefore cause death toll to rise 13.3% on year-on-year basis ".
The existing antiskid performance study to bituminous paving focuses primarily upon the bituminous paving under conventional non-icy conditions, ice and snow
Presence cause road surface physical property have greatly change, so under the non-freezing conditions of routine bituminous paving antiskid performance study
Can not be incorporated under freezing conditions in the antiskid performance issue of bituminous paving.Existing bituminous paving antiskid detection method base
This can only all detect the frictional behaviour of bituminous paving under non-freezing conditions, the frictional behaviour detection side of bituminous paving under freezing conditions
Method and instrument are most deficient, therefore just do not form Bitumen Pavement Anti-Skid Performance appraisement system under the freezing conditions of standard.So,
Under the present situation that bituminous paving antiskid evaluation method, evaluation index and standard all lack in ice conditions, expanding performance evaluation side
Method research is of crucial importance.
Pavement skid resistance failure is the main performance problem that bituminous paving occurs under cryogenic under icy conditions,
Therefore, it is the antiskid performance of bituminous paving under accurate evaluation ice and snow state, rational evaluation its antiskid characteristic is very necessary and has
Meaning --- the present invention is dripped with asphalt frictional behaviour as starting point under carrying out icy conditions based on tyre load feature
The research of blue or green pavement skid resistance condition evaluation method.
The content of the invention
The present invention be in order to solve current road engineering lack under icy conditions Bitumen Pavement Anti-Skid Performance test equipment and
The problem of relevant evaluation method, and Bitumen Pavement Anti-Skid Performance test platform is provided under a kind of icy conditions and is commented using the platform
The method of valency pavement skid resistance condition.
Bitumen Pavement Anti-Skid Performance test platform is by upper bracket, test casing, hair under a kind of icy conditions of the invention
Motor, toothed belt transmission bearing group, hand elevating lever, transmission vertical shaft, positioning bearing, laser velocimeter sensor, wireless torque are passed
Sensor, wheel loading system, spherical constant velocity cardan joint, transverse arm axle and annular charge pallet composition；The wheel loading system is loaded by tire
Counterweight, electromagnetic brake, loading counterweight fix bar, wheel load hollow out outer container, single-wheel and connecting shaft composition, the single-wheel are arranged on wheel
The inside of hollow out outer container is carried, the loading counterweight fix bar is arranged on the upper surface of wheel load hollow out outer container, and the tire loads weight
Code is arranged in loading counterweight fix bar, and the electromagnetic brake is arranged on the axis of single-wheel, and the single-wheel passes through connecting shaft
It is fixed on one end of transverse arm axle；The upper bracket is arranged on the top of test casing；The generator is arranged on upper bracket
Interior, the generator is connected by toothed belt transmission bearing group with transmission vertical shaft, is set above the toothed belt transmission bearing group
Put laser velocimeter sensor；The transmission vertical shaft is arranged in upper bracket and test casing through the upper surface of test casing
Shaft position；The top of the transmission vertical shaft sets hand elevating lever；The wireless torque sensor is arranged under transmission vertical shaft
Portion, the lower end of the transmission vertical shaft is provided with spherical constant velocity cardan joint, and the transmission vertical shaft is fixed on test by positioning bearing
The bottom surface of casing, the bottom surface of the test casing is provided with annular charge pallet, and the top of the annular charge pallet is by circle
Array distribution has three wheel loading systems, and three wheels loading system is connected on spherical constant velocity cardan joint by transverse arm axle；It is described
The signal output part of laser velocimeter sensor and the signal output part of wireless torque sensor are respectively with to be arranged on test box external
The signal receiving end of the computer in portion is connected.
The method for evaluating pavement skid resistance condition using above-mentioned platform is carried out according to the following steps：
First, compound shaping is carried out using rolling molding mode according to gradation design, is processed into six block size identicals fan
Shape part, obtains part to be measured；
2nd, using hand elevating lever by wheel load system improving to test casing top, check wireless torque sensor and
The use state of electromagnetic brake, makes wireless torque sensor and electromagnetic brake normal operation；
3rd, selection tire loads the weight of counterweight, and the tire loading counterweight of identical weight is arranged on into loading counterweight respectively
In fix bar；
4th, computer connection wireless torque sensor and laser velocimeter sensor are opened；
5th, part two ends to be measured are repaired using toothless saw, part to be measured is sequentially placed into annular charge pallet and solid
Fixed, whole test environment is placed in temperature adjustment storehouse, the temperature in adjustment temperature adjustment storehouse, and more than 2h is incubated after reaching test temperature；
6th, water consumption is calculated, part surface to be measured is uniformly sprayed on by several times, more than 1h is incubated after sprinkling every time, treats to be measured
Part surface forms the ice sheet of uniform thickness；
7th, wheel loading system is reduced, single-wheel is contacted with ice face；
8th, single-wheel test speed is set, the detection data to wireless torque sensor and laser velocimeter sensor is collected, if
Fixed number opens generator according to save location；
9th, 0.5min~5min is run, speed-time curve and torque-time curves is observed, when the speed of single-wheel reaches
During setting speed, start electromagnetic brake, record experimental data, that is, complete Bitumen Pavement Anti-Skid Performance evaluation under icy conditions.
Beneficial effect：
The present invention detects suitable for the frictional behaviour of various experimental conditions, realizes rubber tyre and continuously ground with bituminous paving
The simulation process of consumption；Transport condition of the true simulation actual vehicle of humiture on road surface, and energy are controlled by chamber
Road surface and tire interface state change are enough conveniently realized, is easy to test comparative analysis, especially support the antiskid under icy conditions
Performance monitoring and the continuous acquisition of data, are required with solving bituminous paving detection under existing instrument and equipment can not meet freezing conditions
Problem.The present invention is based on speed versus time, torque-time curves in process of the test, with the dynamic friction coefficient of moment of torsion inverse
As metrics evaluation, the asphalt antiskid characteristic under icy conditions is evaluated.System is applied to tire by operation process
Dynamic torque, simulates the friction behavior of tire braking in vehicle travel process, is passed by the wireless torque being placed on power transmission shaft
Tire evaluates the tire-road antiskid under different condition with the coefficient of friction on road surface under the returned data inverse friction speed of sensor
Performance.The lower Bitumen Pavement Anti-Skid Performance evaluation method of ice and snow effect proposed by the present invention, can truly simulate bituminous paving in ice and snow
Frictional behavior under effect, is with a wide range of applications in pavement skid resistance condition evaluation, and this is for improving current ice and snow bar
The deficient present situation of pavement skid resistance condition evaluation method has important economic benefit and social effect under part.
Brief description of the drawings
Fig. 1 is a kind of structural representation of Bitumen Pavement Anti-Skid Performance test platform under icy conditions；
Fig. 2 is the top view in the test box body；
Fig. 3 be the medium velocity of embodiment one and moment of torsion respectively with the relation curve Comprehensive Correlation figure of time；Wherein 1 be moment of torsion-
Time graph, 2 is speed-time curve, and A is under the conditions of inactive state, B is under the conditions of freely rolling, C is under braking condition；
Fig. 4 is the friction coefficient curve under the different condition of embodiment one；Wherein 1 is dry pavement, and 2 is wet road surface, and 3 are
Road surface containing ice.
Specific embodiment
Specific embodiment one：With reference to Fig. 1 and Fig. 2 explanation present embodiments, dripped under a kind of icy conditions of present embodiment
Blue or green pavement skid resistance condition test platform is by upper bracket 1, test casing 2, generator 4, toothed belt transmission bearing group 5, hand liter
Drop bar 7, transmission vertical shaft 3, positioning bearing 9, laser velocimeter sensor 6, wireless torque sensor 8, wheel loading system 11, spherical constant speed
Universal joint 16, transverse arm axle 10 and annular charge pallet 12 are constituted；The wheel loading system 11 loads counterweight, electromagnetic braking by tire
Device, loading counterweight fix bar 15, wheel load hollow out outer container 17, single-wheel 14 and connecting shaft 13 are constituted, and the single-wheel 14 is arranged on wheel load
The inside of hollow out outer container 17, the loading counterweight fix bar 15 is arranged on the upper surface of wheel load hollow out outer container 17, and the tire adds
Carry counterweight to be arranged in loading counterweight fix bar 15, the electromagnetic brake is arranged on the axis of single-wheel 14, the single-wheel 14
One end of transverse arm axle 10 is fixed on by connecting shaft 13；The upper bracket 1 is arranged on the top of test casing 2；The generating
Machine 4 is arranged in upper bracket 1, and the generator 4 is connected by toothed belt transmission bearing group 5 with transmission vertical shaft 3, the synchronization
The top of V belt translation bearing group 5 sets laser velocimeter sensor 6；The transmission vertical shaft 3 is set through the upper surface of test casing 2
In upper bracket 1 and the location mid-shaft of test casing 2；The top of the transmission vertical shaft 3 sets hand elevating lever 7；It is described wireless
Torque sensor 8 is arranged on the bottom of transmission vertical shaft 3, and the lower end of the transmission vertical shaft 3 is provided with spherical constant velocity cardan joint 16, institute
The bottom surface that transmission vertical shaft 3 is fixed on test casing 2 by positioning bearing 9 is stated, the bottom surface of the test casing 2 is provided with annular Sheng
Material torr disk 12, the top of the annular charge pallet 12 is distributed with three wheel loading systems 11, three wheel loads by circular array
System 11 is connected on spherical constant velocity cardan joint 16 by transverse arm axle 10；The signal output part of the laser velocimeter sensor 6 and
Signal receiving end of the signal output part of wireless torque sensor 8 respectively with the computer being arranged on outside test casing 2 is connected.
It is in order to control wheel loading system is lifted that present embodiment sets hand elevating lever 7, it is ensured that tire and part surface to be measured
Contact free, while being easy to part to be measured to install and experimental condition adjustment.
Laser velocimeter sensor 6 described in present embodiment is used for real-time monitoring wheel loading system rotating speed.
Bitumen Pavement Anti-Skid Performance test platform is placed in an experiment for temperature controllable under icy conditions described in present embodiment
In cabin.
The output torque of generator 4 described in present embodiment passes to transmission vertical shaft 3 by toothed belt transmission bearing group 5, and
Whole wheel loading system is driven to be moved in a circle around transmission vertical shaft 3.
Loading system 11 is taken turns described in present embodiment and acts on simulation side as vehicle and road surface using three axle wheel load circular motion
Formula, this mode of action enables experiment wheel self adaptation surface of test piece to be measured in the process of running, it is ensured that three-wheel load is uniform, together
When it also avoid experiment wheel because firmly contact cause instrument damage.
Transverse arm axle 10 described in present embodiment should have certain rotational freedom, therefore, transverse arm axle 10 by biserial to
Heart spherical ball bearing is connected with transmission vertical shaft 3, and rolling bearing frictional resistance is small, and mechanical efficiency is high, gearing friction torque ratio stream
Body hydrodynamic bearing it is much lower, friction Temperature Rise is low, and this causes that the self friction coefficient measurement error of instrument is small, extension use the longevity
Life.
Present embodiment is arranged on single-wheel inner side and sets electromagnetic brake, in single-wheel with desin speed even running during experiment
When connect brake power supply, there is provided braking torque, reach to the experiment effect braked of wheel so that single-wheel slip rate is controllable.
Specific embodiment two：Present embodiment is with the difference of specific embodiment one：The annular charge
Pallet 12 is spliced by six block size identical sectors.Other are identical with specific embodiment one.
Specific embodiment three：Present embodiment is with the difference of specific embodiment one or two：The tire
The weight for loading counterweight is 2.5kg, 5.0kg or 10.0kg.Other are identical with specific embodiment one or two.
Specific embodiment four：Present embodiment is with the difference of one of specific embodiment one to three：It is described
Single-wheel 14 is outer radius footpath 9cm solid rubber wheels.Other are identical with one of specific embodiment one to three.
Specific embodiment five：Present embodiment is with the difference of one of specific embodiment one to four：It is described
The external diameter of annular charge pallet 12 is 70cm, and internal diameter is 30cm.Other are identical with one of specific embodiment one to four.
Present embodiment is loaded using physics counterweight loading means to tire, as：On experiment wheel top, man is set
In platform, and different load-carrying counterweights (2.5kg, 5.0kg, 10.0kg) are configured, the earth contact pressure of tire is controlled using physical load method
By force, it is ensured that the uniformity and stability of single wheel loads effect, while avoiding air pressure and oil pressure loading from being led because of temperature, rotating speed influence
The deviation effects of cause.
Specific embodiment six：Present embodiment is a kind of to be commented using Bitumen Pavement Anti-Skid Performance test platform under icy conditions
The method of valency pavement skid resistance condition is carried out according to the following steps：
First, compound shaping is carried out using rolling molding mode according to gradation design, is processed into six block size identicals fan
Shape part, obtains part to be measured；
2nd, using hand elevating lever 7 will take turns loading system 11 be promoted to test casing 2 top, check wireless torque sensing
The use state of device 8 and electromagnetic brake, makes wireless torque sensor 8 and electromagnetic brake normal operation；
3rd, selection tire loads the weight of counterweight, and the tire loading counterweight of identical weight is arranged on into loading counterweight respectively
In fix bar 15；
4th, computer connection wireless torque sensor 8 and laser velocimeter sensor 6 are opened；
5th, part two ends to be measured are repaired using toothless saw, part to be measured is sequentially placed into annular charge pallet 12 simultaneously
Fixed, whole test environment is placed in temperature adjustment storehouse, the temperature in adjustment temperature adjustment storehouse, and more than 2h is incubated after reaching test temperature；
6th, water consumption is calculated, part surface to be measured is uniformly sprayed on by several times, more than 1h is incubated after sprinkling every time, treats to be measured
Part surface forms the ice sheet of uniform thickness；
7th, wheel loading system 11 is reduced, single-wheel is contacted with ice face；
8th, single-wheel test speed is set, the detection data to wireless torque sensor 8 and laser velocimeter sensor 6 is collected,
Setting data save location, opens generator 4；
9th, 0.5min~5min is run, speed-time curve and torque-time curves is observed, when the speed of single-wheel reaches
During setting speed, start electromagnetic brake, record experimental data, that is, complete Bitumen Pavement Anti-Skid Performance evaluation under icy conditions.
Step 7 single-wheel refers to put down wheel loading system completely with the exposure level of ice face.Hand elevating lever 7 will not be to wheel
Loading system applies external force.
Specific embodiment seven：Present embodiment is with the difference of specific embodiment six：Described in step 5
Test temperature is -40 DEG C~60 DEG C.Other are identical with specific embodiment six.
Beneficial effects of the present invention are verified by following examples：
Embodiment one：Bitumen Pavement Anti-Skid Performance evaluation method is carried out according to the following steps under a kind of icy conditions：
First, contained according to design grading curve take gather materials, pitch, mixing AC13 asphalts are processed into six block size phases
Same sector, obtains part to be measured；
2nd, using hand elevating lever 7 will take turns loading system 11 be promoted to test casing 2 top, check wireless torque sensing
The use state of device 8 and electromagnetic brake, makes wireless torque sensor 8 and electromagnetic brake normal operation；
3rd, selection tire loads the weight of counterweight, and the tire loading counterweight of identical weight is arranged on into loading counterweight respectively
In fix bar 15；
4th, computer connection wireless torque sensor 8 and laser velocimeter sensor 6 are opened；
5th, part two ends to be measured are repaired using toothless saw, part to be measured is sequentially placed into annular charge pallet 12 simultaneously
Fixed, whole test environment is placed in temperature adjustment storehouse, the temperature in adjustment temperature adjustment storehouse be respectively -30 DEG C, -20 DEG C, -10 DEG C, 0 DEG C,
10 DEG C, 20 DEG C, 30 DEG C, 40 DEG C, 50 DEG C, 60 DEG C, used as 10 groups of comparative runs, every group reaches insulation more than 2h after test temperature；
6th, water consumption is calculated, part surface to be measured is uniformly sprayed on by several times, more than 1h is incubated after sprinkling every time, treats to be measured
Part surface forms the ice sheet of uniform thickness；
7th, wheel loading system 11 is reduced, single-wheel is contacted with ice face；
8th, single-wheel test speed is set, the detection data to wireless torque sensor 8 and laser velocimeter sensor 6 is collected,
Setting data save location, opens generator 4；
9th, 40s is run, speed-time curve and torque-time curves is observed, when the speed of single-wheel reaches setting speed
When, start electromagnetic brake, record experimental data, that is, complete Bitumen Pavement Anti-Skid Performance evaluation under icy conditions.
Fig. 3 be the medium velocity of embodiment one and moment of torsion respectively with the relation curve Comprehensive Correlation figure of time；Wherein 1 be moment of torsion-
Time graph, 2 is speed-time curve, and A is under the conditions of inactive state, B is under the conditions of freely rolling, C is under braking condition；
Fig. 4 is the friction coefficient curve under the different condition of embodiment one；Wherein 1 is dry pavement, and 2 is wet road surface, and 3 is road containing ice
Face.From Fig. 3 and Fig. 4, dry pavement coefficient of friction is apparently higher than moist, road surface containing ice, skid resistance of pavement under state containing ice-like
Can sharp-decay；Dry and trough occur in low-temperature space, condensed water lubrication friction pair interface occurs in contact interface；Because ice film is melted
Lubrication interface, there is coefficient of friction trough in the high-temperature region of road surface containing ice (near 0 DEG C).
Embodiment two：It is the stabilization of Bitumen Pavement Anti-Skid Performance test platform under checking originally a kind of icy conditions of the invention
Property and accuracy verified, because the coefficient of friction of focussing glass is relatively fixed, physical and chemical performance stabilization, material is hardly
Change the coefficient of friction of itself because being influenceed by extraneous factor, and when single-wheel carries out experimental test on frosted glass, tire mill
Damage amount is negligible, therefore uses frosted glass as the bias bioassay standard sample of experiment porch.Detailed process is as follows：
First, the focussing glass of alternation rule, is labelled on smooth stainless steel plate；Using spring dynamometer measurement rules hair glass
The coefficient of friction a reference value of glass；
2nd, using hand elevating lever 7 will take turns loading system 11 be promoted to test casing 2 top, check wireless torque sensing
The use state of device 8 and electromagnetic brake, makes wireless torque sensor 8 and electromagnetic brake normal operation；
3rd, selection tire loads the weight of counterweight, and the tire loading counterweight of identical weight is arranged on into loading counterweight respectively
In fix bar 15；
4th, computer connection wireless torque sensor 8 and laser velocimeter sensor 6 are opened；
5th, part two ends to be measured are repaired using toothless saw, part to be measured is sequentially placed into annular charge pallet 12 simultaneously
Fixed, whole test environment is placed in temperature adjustment storehouse, the temperature in adjustment temperature adjustment storehouse be respectively -30 DEG C, -20 DEG C, -10 DEG C, 0 DEG C,
10 DEG C, 20 DEG C, 30 DEG C, 40 DEG C, 50 DEG C, 60 DEG C, used as 10 groups of comparative runs, every group reaches insulation more than 2h after test temperature；
6th, water consumption is calculated, part surface to be measured is uniformly sprayed on by several times, more than 1h is incubated after sprinkling every time, treats to be measured
Part surface forms the ice sheet of uniform thickness；
7th, wheel loading system 11 is reduced, single-wheel is contacted with ice face；
8th, single-wheel test speed is set, the detection data to wireless torque sensor 8 and laser velocimeter sensor 6 is collected,
Setting data save location, opens generator 4；
9th, 40s is run, speed-time curve and torque-time curves is observed, when the speed of single-wheel reaches setting speed
When, start electromagnetic brake, experimental data is recorded, measurement data is gathered, Bitumen Pavement Anti-Skid Performance is surveyed under obtaining icy conditions
The frosted glass coefficient of friction that examination platform is measured, as shown in table 3；
Tenth, using t methods of inspection to the accuracy of Bitumen Pavement Anti-Skid Performance test platform measurement data under icy conditions and
Bias is tested.
The coefficient of friction average value of the standard specimen measured using Bitumen Pavement Anti-Skid Performance test platform under icy conditions
It is f=0.16925, standard deviation is 0.0006402, statistic is t=2.7336 due to t<3.1740, then statistic t fall into non-
In region of rejection, i.e. f=f0Assuming that setting up.
Bitumen Pavement Anti-Skid Performance test platform can accurately measure material surface under icy conditions of the invention
Coefficient of friction, meets bias requirement, and test data reliability is high.
If being calculated ± 3% according to the control of error tolerance interval, in follow-up calibration experiment, obtained by measurement focussing glass
Coefficient of friction in the range of (0.166,0.176), can be assumed that data are accurate at this stage, if outside this range, needing
Instrument is adjusted, is re-scaled.
Table 1 is a kind of design parameter of Bitumen Pavement Anti-Skid Performance test platform under icy conditions；Table 2 is regular frosted glass
Coefficient of friction a reference value measurement result.
Bitumen Pavement Anti-Skid Performance Testing Platform parameter under the icy conditions of table 1
The coefficient of friction a reference value measurement result of the regular frosted glass of table 2
The frosted glass coefficient of friction that Bitumen Pavement Anti-Skid Performance test platform is measured under the icy conditions of table 3
Claims (7)
1. a kind of Bitumen Pavement Anti-Skid Performance test platform under icy conditions, it is characterised in that bituminous paving antiskid under icy conditions
Testing Platform is by upper bracket (1), test casing (2), generator (4), toothed belt transmission bearing group (5), hand lifting
Bar (7), transmission vertical shaft (3), positioning bearing (9), laser velocimeter sensor (6), wireless torque sensor (8), wheel loading system
(11), spherical constant velocity cardan joint (16), transverse arm axle (10) and annular charge pallet (12) composition；Wheel loading system (11) is by taking turns
Tire loading counterweight, electromagnetic brake, loading counterweight fix bar (15), wheel load hollow out outer container (17), single-wheel (14) and connecting shaft
(13) constitute, the single-wheel (14) is arranged on the inside of wheel load hollow out outer container (17), the loading counterweight fix bar (15) is set
In the upper surface of wheel load hollow out outer container (17), the tire loading counterweight is arranged in loading counterweight fix bar (15), the electricity
Magnetic brake is arranged on the axis of single-wheel (14), and the single-wheel (14) is fixed on the one of transverse arm axle (10) by connecting shaft (13)
End；The upper bracket (1) is arranged on the top of test casing (2)；The generator (4) is arranged in upper bracket (1), institute
Generator (4) is stated to be connected with transmission vertical shaft (3) by toothed belt transmission bearing group (5), the toothed belt transmission bearing group (5)
Top sets laser velocimeter sensor (6)；Transmission vertical shaft (3) is arranged on top branch through the upper surface of test casing (2)
Frame (1) and the location mid-shaft of test casing (2)；The top of transmission vertical shaft (3) sets hand elevating lever (7)；It is described wireless
Torque sensor (8) is arranged on the bottom of transmission vertical shaft (3), and the lower end of the transmission vertical shaft (3) is provided with spherical constant velocity universal
Section (16), transmission vertical shaft (3) is fixed on the bottom surface of test casing (2), the test casing (2) by positioning bearing (9)
Bottom surface be provided with annular charge pallet (12), the top of the annular charge pallet (12) is distributed with three wheels by circular array
Loading system (11), three wheels loading system (11) are connected on spherical constant velocity cardan joint (16) by transverse arm axle (10)；It is described
The signal output part of laser velocimeter sensor (6) and the signal output part of wireless torque sensor (8) respectively be arranged on test
The signal receiving end of the outside computer of casing (2) is connected.
2. Bitumen Pavement Anti-Skid Performance test platform under a kind of icy conditions according to claim 1, it is characterised in that institute
Annular charge pallet (12) is stated to be spliced by six block size identical sectors.
3. Bitumen Pavement Anti-Skid Performance test platform under a kind of icy conditions according to claim 1, it is characterised in that institute
The weight for stating tire loading counterweight is 2.5kg, 5.0kg or 10.0kg.
4. Bitumen Pavement Anti-Skid Performance test platform under a kind of icy conditions according to claim 1, it is characterised in that institute
It is outer radius footpath 9cm solid rubber wheels to state single-wheel (14).
5. Bitumen Pavement Anti-Skid Performance test platform under a kind of icy conditions according to claim 1, it is characterised in that institute
The external diameter of annular charge pallet (12) is stated for 70cm, internal diameter is 30cm.
6. the side of pavement skid resistance condition is evaluated using Bitumen Pavement Anti-Skid Performance test platform under the icy conditions of claim 1
Method, it is characterised in that using under icy conditions Bitumen Pavement Anti-Skid Performance test platform evaluate pavement skid resistance condition method be by
What following steps were carried out：
First, compound shaping is carried out using rolling molding mode according to gradation design, is processed into six block size identical sectors,
Obtain part to be measured；
2nd, the top that loading system (11) is promoted to test casing (2) will be taken turns using hand elevating lever (7), will check that wireless torque is passed
The use state of sensor (8) and electromagnetic brake, makes wireless torque sensor (8) and electromagnetic brake normal operation；
3rd, selection tire loads the weight of counterweight, and the tire loading counterweight of identical weight is arranged on into loading counterweight respectively fixes
On bar (15)；
4th, open computer and connect wireless torque sensor (8) and laser velocimeter sensor (6)；
5th, part two ends to be measured are repaired using toothless saw, part to be measured is sequentially placed into annular charge pallet (12) and solid
Fixed, whole test environment is placed in temperature adjustment storehouse, the temperature in adjustment temperature adjustment storehouse, and more than 2h is incubated after reaching test temperature；
6th, water consumption is calculated, part surface to be measured is uniformly sprayed on by several times, more than 1h, part table to be measured is incubated after sprinkling every time
Face forms the ice sheet of uniform thickness；
7th, wheel loading system (11) is reduced, single-wheel is contacted with ice face；
8th, single-wheel test speed is set, the detection data to wireless torque sensor (8) and laser velocimeter sensor (6) is collected,
Setting data save location, opens generator (4)；
9th, 0.5min~5min is run, speed-time curve and torque-time curves is observed, when the speed of single-wheel reaches setting
During speed, start electromagnetic brake, record experimental data, that is, complete Bitumen Pavement Anti-Skid Performance evaluation under icy conditions.
7. Bitumen Pavement Anti-Skid Performance test platform under a kind of icy conditions according to claim 6, it is characterised in that step
Test temperature described in rapid five is -40 DEG C~60 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611054836.5A CN106769837A (en) | 2016-11-25 | 2016-11-25 | Bitumen Pavement Anti-Skid Performance test platform and the method that pavement skid resistance condition is evaluated using the platform under a kind of icy conditions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611054836.5A CN106769837A (en) | 2016-11-25 | 2016-11-25 | Bitumen Pavement Anti-Skid Performance test platform and the method that pavement skid resistance condition is evaluated using the platform under a kind of icy conditions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106769837A true CN106769837A (en) | 2017-05-31 |
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| CN201611054836.5A Pending CN106769837A (en) | 2016-11-25 | 2016-11-25 | Bitumen Pavement Anti-Skid Performance test platform and the method that pavement skid resistance condition is evaluated using the platform under a kind of icy conditions |
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| CN110441227A (en) * | 2019-08-13 | 2019-11-12 | 河海大学 | The synchrometer and test method of bituminous concrete antiskid performance and attenuation law |
| CN113588542A (en) * | 2021-07-30 | 2021-11-02 | 哈尔滨工业大学 | Constant-speed rotation and anti-lock controller for wheel type high-speed anti-skid instrument |
| 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 |
| CN113916771A (en) * | 2021-09-01 | 2022-01-11 | 哈尔滨工业大学 | Road surface slippery state sensor calibration device and method for monitoring dynamic friction coefficient |
| CN114047054A (en) * | 2021-11-15 | 2022-02-15 | 中国第一汽车股份有限公司 | Rolling testing device and testing method thereof |
| CN116973018A (en) * | 2023-09-15 | 2023-10-31 | 中国空气动力研究与发展中心高速空气动力研究所 | Novel continuous surface shear force optical measurement method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107655825A (en) * | 2017-11-18 | 2018-02-02 | 哈尔滨工业大学（威海） | A kind of rubber for tire high speed ice face frictional behavior test device |
| WO2019210688A1 (en) * | 2018-05-03 | 2019-11-07 | 长安大学 | Simulation test device and method for research on friction process between tires and road surface |
| CN110441227A (en) * | 2019-08-13 | 2019-11-12 | 河海大学 | The synchrometer and test method of bituminous concrete antiskid performance and attenuation law |
| CN113588542A (en) * | 2021-07-30 | 2021-11-02 | 哈尔滨工业大学 | Constant-speed rotation and anti-lock controller for wheel type high-speed anti-skid instrument |
| 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 |
| CN113916771A (en) * | 2021-09-01 | 2022-01-11 | 哈尔滨工业大学 | Road surface slippery state sensor calibration device and method for monitoring dynamic friction coefficient |
| CN113916771B (en) * | 2021-09-01 | 2023-08-25 | 哈尔滨工业大学 | Road surface wet and slippery state sensor device and method for monitoring dynamic friction coefficient |
| CN114047054A (en) * | 2021-11-15 | 2022-02-15 | 中国第一汽车股份有限公司 | Rolling testing device and testing method thereof |
| CN114047054B (en) * | 2021-11-15 | 2024-03-26 | 中国第一汽车股份有限公司 | Rolling test device and test method thereof |
| CN116973018A (en) * | 2023-09-15 | 2023-10-31 | 中国空气动力研究与发展中心高速空气动力研究所 | Novel continuous surface shear force optical measurement method |
| CN116973018B (en) * | 2023-09-15 | 2023-12-05 | 中国空气动力研究与发展中心高速空气动力研究所 | Optical measurement method for continuous surface shear force |
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