CN109612862A - A kind of experimental provision and its method of the abrasion influence of simulation tyre braking system sliding friction road pavement - Google Patents
A kind of experimental provision and its method of the abrasion influence of simulation tyre braking system sliding friction road pavement Download PDFInfo
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- CN109612862A CN109612862A CN201811504290.8A CN201811504290A CN109612862A CN 109612862 A CN109612862 A CN 109612862A CN 201811504290 A CN201811504290 A CN 201811504290A CN 109612862 A CN109612862 A CN 109612862A
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
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Abstract
The present invention relates to a kind of experimental provision that the abrasion of simulation tyre braking system sliding friction road pavement influence and its methods, including pedestal, the middle of the base is provided with the fixed frame for installing road surface test block, installation seat plate is provided on the upside of pedestal, the motor tire being provided on the installation seat plate on the upside of fixed frame, it is provided with the plus-minus pressure valve for adjusting contact pressure between tire and road surface test block on installation seat plate, is additionally provided on installation seat plate for storing battery, photoelectric encoder, wheel speed controller and the containing box of electrical wiring.The apparatus structure is simple, be conveniently used for simulation tyre braking system when and road surface sliding friction process.
Description
Technical field
The present invention relates to a kind of experimental provision that the abrasion of simulation tyre braking system sliding friction road pavement influence and its methods.
Background technique
Currently, though the main variation of method of statistical survey research road wear and construction using for true road surface declines both at home and abroad
Subtract rule, but measure the abrasion variation of true road surface under various circumstances and need a large amount of manpower and expensive equipment, acquires number
According to period it is also long, and many factors influence road wear factor artificially do not controlled, be difficult research single factors pair
The influence of road surface cutting construction variation.In contrast, indoor wear simulation test, which has, can effectively grasp research direction, test week
There is the degree of wear of research pavement skid resistance condition and texture structure depth in many advantages, such as phase is short and test result is simple and clear
Very strong practicability.
The researchers such as the M Kane of France have made the sanding machine of entitled " Wehner-Schulze " to assess link table
The attenuation trend of face texture sample, the equipment are the load and pressure that perception road surface is born by laying sensor on road surface
Distribution, but tire can not be simulated in the abrasion process on road surface.
US West's circular track test mode is used as reference by traffic department, New Zealand, has investigated adding for cement pavement
Fast indoor test system CAPTIF.Using the dynamic load and circular rotating load of lithe, to simulate practical road surface running vehicle environment.
Indoor acceleration actual road test test macro has been set up, and has analyzed the opposite mill that compared being caused by the load standard of 8t, 10t, 12t
Consumption rate.However the equipment wears away process using sheet rubber simulated roadway, only considered influence of the load to abrasion, and have ignored wheel
Air pressure, influence of the tire rotational speed to abrasion.
Central South University Chen Yu research has made road surface accelerated wear test instrument, and according to the feature worn between road surface and tire,
Propose corresponding simulation experiment method.The test is moved back and forth using grinding wheel in the method on concrete test block, and has dispensed mill
Grain participates in the abrasion to concrete test block.The device carries out abrasion test using grinding wheel, has with true vehicular pneumatic tire
Certain difference can not analyze the influence of tire pressure road pavement wear intensity.Meanwhile the experiment uses roller friction, and
Sliding friction when road pavement wears away the braking automobile being affected cannot be simulated.
In conclusion current domestic and international researched and developed pavement abrasion experimental provision, it being capable of analyzing influence pavement abrasion degree
Correlative factor, however there are still some shortcomingss: 1) rolling of existing pavement abrasion instrument main analog tire rubs at present
It wipes, the sliding friction experiment being affected without can be carried out road pavement abrasion；2) abrasion instrument mostly uses greatly sheet rubber or grinding wheel generation
For tire, however its there are bigger differences with true tire, the influence of tire pressure road pavement abrasion can not be analyzed.
Summary of the invention
The purpose of the present invention is to provide a kind of experimental provisions that the abrasion of simulation tyre braking system sliding friction road pavement influence
And its method, structure is simple, be conveniently used for simulation tyre braking system when and road surface sliding friction process.
Technical program of the present invention lies in: a kind of experiment dress that the abrasion of simulation tyre braking system sliding friction road pavement influence
It sets, including pedestal, the middle of the base is provided with the fixed frame for installing road surface test block, and installation is provided on the upside of pedestal
Seat board, the motor tire being provided on the installation seat plate on the upside of fixed frame are provided with for adjusting on installation seat plate
The plus-minus pressure valve of contact pressure between tire and road surface test block is additionally provided on installation seat plate for storing battery, photoelectricity is compiled
The containing box of code device, wheel speed controller and electrical wiring.
Further, the both sides of the pedestal are respectively arranged with support frame, and the upper end of support frame as described above is through fixture and peace
Dress seat board is fixedly connected.
Further, front fork of electric vehicle is provided on the downside of the installation seat plate, the motor tire is installed on electricity
On motor-car front fork, the plus-minus pressure valve is acted on front fork of electric vehicle.
Further, the water injector for spraying motor tire, the water spray dress are additionally provided on the installation seat plate
The spray head including being set on electronic front fork is set, is connected through water inlet pipe with water pump on the spray head.
Further, support frame as described above is made of galvanized angle iron.
A kind of experimental provision experimental method that the abrasion of simulation tyre braking system sliding friction road pavement influence, including a kind of simulation
The experimental provision that the abrasion of tyre braking system sliding friction road pavement influence, steps are as follows:
1) bituminous pavement test block and cement pavement test block are made；
2) road pavement test block texture structure carries out depth measurement: bituminous pavement test block carries out pavement texture using traditional method that sands
The measurement of construction depth；Cement pavement test block is using the improved measurement for sanding method and carrying out groove dimensions；
3) pressure between motor tire and test block is adjusted by plus-minus pressure valve；
4) it is powered with lithium battery to motor tire, motor tire rotational speed needed for adjusting experiment；When speed reaches necessary requirement,
Pressing cruise key makes tire uniform rotation；
5) after pavement abrasion experimental provision to be determined works normally under specified requirements, start recording wearing- in period is small every two
When with sand method measurement test block surface abrasion loss；
6) method measurement is sanded by the bituminous pavement test block surface texture structure depth after abrasion test using the method that sands and improvement
Degree and the groove dimensions of cement pavement test block；In conjunction with the measurement result before abrasion test, the test block table for passing through abrasion test is calculated
Face abrasion loss.
Further, in the step 1), according to the needs of research, for the surface of cement pavement test block carry out cutting or
Hair pulling treatment.
Further, in the step 2, when measuring bituminous pavement, the sand of known volume is paved on road surface, to the greatest extent may be used
Can pave as circle, the length of two round vertical direction is then taken with construction depth dipstick metering, takes its average value to acquire and sands
Area, the average area sanded in husky volume ratio is bituminous pavement texture structure depth.
Further, in the step 2, when measuring cement pavement, cleaning test block first removes the sandstone inside cutting
Deng；Then the fine sand for measuring certain volume is laid in test block surface, by fine sand it is flat-pushing enter cutting inside it is equal with surface, and as far as possible
Keep surface without fine sand；The number of the cutting covered by fine sand and the length that cutting is capped are finally recorded, to converse
Groove dimensions.
Further, it in the step 4), needs to water to test block and motor tire contact plane during the test, prevent
Only tyre temperature is excessively high and on fire blow out occurs.
Compared with prior art, the invention has the following advantages that
The experimental provision is analysis object with the sliding friction of tire when braking automobile, and research contacts under friction type herein, mould
To the road surface in the case of different road surface types, different pavement texture construction depths under quasi- different kinds of tyre load, revolving speed, wearing time
Wear process；By speed control adjustable car wheel speed, studies speed and satisfy the need the influence of surface wear；Subtracted by adjusting pressurization
The effect of pressure valve simulating vehicle carrying, analyzes the influence of the load road pavement degree of wear；It is filled using the inflation detected with tire pressure
Set adjusting tire pressure, analysis different tire pressure is satisfied the need the influence of surface wear；Simultaneously for pavement texture construction depth, project is used and is sanded
Method measures bituminous pavement texture structure depth；It is proposed that a kind of improvement for measuring cement pavement groove dimensions sands method；
In the case that control other influences factor is constant, the pavement abrasion process under single influence factor situation of change is simulated,
To measure the size that single influence factor road pavement abrasion influence；
Accelerate the abrasion process on road surface, the long-term abrasion process in true road surface is completed in simulation in a relatively short period of time, is reduced significantly
In the period of abrasion test, improve the efficiency of experiment.
Detailed description of the invention
Fig. 1 is main view of the invention；
Fig. 2 is side view of the invention；
Fig. 3 is top view of the invention；
Fig. 4 is circuit diagram of the invention.
Specific embodiment
To make the foregoing features and advantages of the present invention clearer and more comprehensible, special embodiment below, and cooperate attached drawing, make detailed
It is carefully described as follows, but the present invention is not limited thereto.
Referring to figs. 1 to Fig. 4
A kind of experimental provision that the abrasion of simulation tyre braking system sliding friction road pavement influence, including pedestal 1, the middle of the base are set
It is equipped with the fixed frame for installing road surface test block, to prevent cement briquette during test from being acted on by frictional force and being detached from and take turns
Tire sphere of action.The fixed frame is the rectangular frame being set on pedestal.Installation seat plate 2, institute are provided on the upside of pedestal
The motor tire 3 for being provided on installation seat plate and being used to contact friction with road surface test block on the upside of fixed frame is stated, to simulate
Sliding friction state of the vehicle when braking on road.It is provided on installation seat plate indirectly for adjusting tire and road surface test block
The plus-minus pressure valve of touch pressure is additionally provided with for storing battery, photoelectric encoder, wheel speed controller and electric wire on installation seat plate
The containing box 5 of route.
In the present embodiment, the motor tire can replace the tire of different decorative patterns, adjust the tire pressure of tire, control tire
Revolving speed.The adjustable-length range of the plus-minus pressure valve is 0 ~ 11cm.Height is first adjusted before the test, measures different height pressure
Then size measures the distance of adjusting and marks.If each test pressure later does not change, so that it may directly adjust to mark
The mark point of note.
In the present embodiment, the both sides of the pedestal are respectively arranged with support frame 6, and the upper end of support frame as described above is through fixture 7
It is fixedly connected with installation seat plate；The fixture is the locking bolt for latching or being connected with installation seat plate.
In the present embodiment, front fork of electric vehicle 4 is provided on the downside of the installation seat plate, so as to when adjusting plus-minus pressure valve
Men Shike is further applied load to tire；The motor tire is installed on front fork of electric vehicle, to support motor tire.The plus-minus
Pressure valve acts on front fork of electric vehicle, to adjust contact pressure between tire and road surface test block.
In the present embodiment, the water injector for spraying motor tire, the water spray are additionally provided on the installation seat plate
Device includes the spray head being set on electronic front fork, is watered for use in test block and tire contact plane, and tire temperature is prevented
It spends high and on fire blow out occurs；It is connected through water inlet pipe with water pump on the spray head, to supply water for spray head.
In the present embodiment, since the frictional force that road surface test block and tire generate is larger, tire will drive entire instrument forward
It is tilted into direction.So support angle steel, using 5mm galvanized angle iron, coupling part is plated item with 4mm and welded, make whole knot
Structure is securely solid, ensure that the stability of test process Instrumental.
In the present embodiment, this pavement abrasion experimental provision uses 48v12a lithium battery, the wheel speed controller with cruise function,
Motor tire is 48v brushless motor tire and the controller of 48v current limliting 18a.
The assembling process of device:
1. electromechanical testing: any two motor lines of motor tire are shorted, with hand rotating tire, if having experienced resistance generation
It is intact then to represent motor.After detection is normal, the motor lines of motor tire line color corresponding with the motor lines on controller is connected
It connects；
2. power supply line connects: controller power source line (slightly red to be positive, slightly black to be negative) is connected with the positive and negative anodes of lithium battery respectively,
Controller power source line is docked with battery supply line can directly make motor tire be in starting state；
3. information source line connects: the red, yellow, green, blue of controller, black 5 Hall lines is corresponding with 5 on motor tire respectively
The Hall line of same color connects, and plays the role of transmission of control signals, changes current direction, to realize that the continuous of motor turns
It is dynamic；
4. controller test: white study line on docking controller, test motor whether rotation, if control can be represented if rotation
Device is intact；After completing above-mentioned steps, motor tire can normally start running；
5. wheel speed controller connects: wheel speed controller signals line is attached with photoelectric encoder.Wheel speed controller signals line
Red-black blue (red be anode black be cathode) with photoelectric encoder signal wire red and black is green is attached, so that motor tire is reached speed regulation
Purpose.The thin green line (instrument line) of thin brown line and photoelectric encoder on wheel speed controller is attached, to show that wheel turns
Speed and battery capacity.The yellowish-white line of wheel speed controller is cruise control line, thin black corresponding connected with the thin orange of photoelectric encoder, is realized
Its cruise function；I.e. after reaching test speed, pressing cruise key can be such that wheel speed remains unchanged.It is thin green on wheel speed controller
Line is display screen bright light electrode line, is connected together with 4 lines of power supply and photoelectric encoder electrode line and electric switch locking wire, reaches unlatching
The function of wheel speed controller display.
A kind of experimental provision experimental method that the abrasion of simulation tyre braking system sliding friction road pavement influence, including a kind of simulation
The experimental provision that the abrasion of tyre braking system sliding friction road pavement influence, steps are as follows:
1) bituminous pavement test block and cement pavement test block are made, according to the needs of research, for the surface of cement pavement test block
Carry out cutting or hair pulling treatment；
2) road pavement test block texture structure carries out depth measurement: bituminous pavement test block carries out pavement texture using traditional method that sands
The measurement of construction depth；Cement pavement test block is using the improved measurement for sanding method and carrying out groove dimensions；
3) pressure between motor tire and test block is adjusted by plus-minus pressure valve, the load application of motor tire can be divided into difference
Class, the operation need to be completed before power supply；
4) it is powered with lithium battery to motor tire, motor tire rotational speed needed for adjusting experiment；When speed reaches necessary requirement,
Pressing cruise key makes tire uniform rotation, since the frictional force generated between test tire and cement briquette is larger, in test process
In need to water to test block and motor tire contact plane, prevent tyre temperature excessively high and on fire blow out occur；
5) after pavement abrasion experimental provision to be determined works normally under specified requirements, start recording wearing- in period is small every two
When with sand method measurement test block surface abrasion loss；
6) method measurement is sanded by the bituminous pavement test block surface texture structure depth after abrasion test using the method that sands and improvement
Degree and the groove dimensions of cement pavement test block；In conjunction with the measurement result before abrasion test, the test block table for passing through abrasion test is calculated
Face abrasion loss.
In the present embodiment, in the step 2, when measuring bituminous pavement, the sand of known volume is paved on road surface, to the greatest extent
It is possible to pave as circle, the length of two round vertical direction is then taken with construction depth dipstick metering, its average value is taken to acquire paving
Shamian Island is long-pending, and the average area sanded in husky volume ratio is bituminous pavement texture structure depth.
In the present embodiment, in the step 2, when measuring cement pavement, cleaning test block first removes the sand inside cutting
Stone etc.；Then measure certain volume fine sand be laid in test block surface, by fine sand it is flat-pushing enter cutting inside it is equal with surface, and use up
Amount keeps surface without fine sand；The number of the cutting covered by fine sand and the length that cutting is capped are finally recorded, to convert
Groove dimensions out.
The foregoing is merely presently preferred embodiments of the present invention, for the ordinary skill in the art, according to this hair
Experimental provision and its method that various forms of simulation tyre braking system sliding friction road pavement abrasion influence are designed in bright introduction
Creative labor is not needed, it is all according to scope of the present invention patent without departing from the principles and spirit of the present invention
Equivalent change, modification, the replacement and variant made, are all covered by the present invention.
Claims (10)
1. a kind of experimental provision that the abrasion of simulation tyre braking system sliding friction road pavement influence, including pedestal, which is characterized in that institute
It states the middle of the base and is provided with fixed frame for installing road surface test block, be provided with installation seat plate, the installation on the upside of pedestal
The motor tire being provided on the upside of fixed frame on seat board is provided with for adjusting tire and road surface test block on installation seat plate
Between contact pressure plus-minus pressure valve, be additionally provided with for storing battery, photoelectric encoder, wheel speed controller on installation seat plate
And the containing box of electrical wiring.
2. the experimental provision that a kind of simulation tyre braking system sliding friction road pavement abrasion according to claim 1 influence,
It is characterized in that, the both sides of the pedestal are respectively arranged with support frame, and the upper end of support frame as described above is solid through fixture and installation seat plate
Fixed connection.
3. the experimental provision that a kind of simulation tyre braking system sliding friction road pavement abrasion according to claim 1 or 2 influence,
It is characterized in that, front fork of electric vehicle is provided on the downside of the installation seat plate, before the motor tire is installed on electric vehicle
On fork, the plus-minus pressure valve is acted on front fork of electric vehicle.
4. the experimental provision that a kind of simulation tyre braking system sliding friction road pavement abrasion according to claim 3 influence,
It is characterized in that, the water injector for spraying motor tire is additionally provided on the installation seat plate, and the water injector includes setting
The spray head being placed on electronic front fork is connected on the spray head with water pump through water inlet pipe.
5. the experimental provision that a kind of simulation tyre braking system sliding friction road pavement abrasion according to claim 2 influence,
It is characterized in that, support frame as described above is made of galvanized angle iron.
6. a kind of experimental provision experimental method that the abrasion of simulation tyre braking system sliding friction road pavement influence, including claim 4
The experimental provision that a kind of simulation tyre braking system sliding friction road pavement abrasion influence, which is characterized in that steps are as follows:
1) bituminous pavement test block and cement pavement test block are made；
2) road pavement test block texture structure carries out depth measurement: bituminous pavement test block carries out pavement texture using traditional method that sands
The measurement of construction depth；Cement pavement test block is using the improved measurement for sanding method and carrying out groove dimensions；
3) pressure between motor tire and test block is adjusted by plus-minus pressure valve；
4) it is powered with lithium battery to motor tire, motor tire rotational speed needed for adjusting experiment；When speed reaches necessary requirement,
Pressing cruise key makes tire uniform rotation；
5) after pavement abrasion experimental provision to be determined works normally under specified requirements, start recording wearing- in period is small every two
When with sand method measurement test block surface abrasion loss；
6) method measurement is sanded by the bituminous pavement test block surface texture structure depth after abrasion test using the method that sands and improvement
Degree and the groove dimensions of cement pavement test block；In conjunction with the measurement result before abrasion test, the test block table for passing through abrasion test is calculated
Face abrasion loss.
7. the experimental provision experiment that a kind of simulation tyre braking system sliding friction road pavement abrasion according to claim 6 influence
Method, which is characterized in that in the step 1), according to the needs of research, for the surface of cement pavement test block carry out cutting or
Hair pulling treatment.
8. the experimental provision experiment that a kind of simulation tyre braking system sliding friction road pavement abrasion according to claim 6 influence
Method, which is characterized in that in the step 2, when measuring bituminous pavement, the sand of known volume is paved on road surface, as far as possible
Pave as circle, the length of two round vertical direction is then taken with construction depth dipstick metering, its average value is taken to acquire the face of sanding
Long-pending, the average area sanded in husky volume ratio is bituminous pavement texture structure depth.
9. the experimental provision experiment that a kind of simulation tyre braking system sliding friction road pavement abrasion according to claim 6 influence
Method, which is characterized in that in the step 2, when measuring cement pavement, cleaning test block first removes the sandstone inside cutting
Deng；Then the fine sand for measuring certain volume is laid in test block surface, by fine sand it is flat-pushing enter cutting inside it is equal with surface, and as far as possible
Keep surface without fine sand；The number of the cutting covered by fine sand and the length that cutting is capped are finally recorded, to converse
Groove dimensions.
10. the experimental provision that a kind of simulation tyre braking system sliding friction road pavement abrasion according to claim 6 influence is real
Proved recipe method, which is characterized in that in the step 4), need to water to test block and motor tire contact plane during the test,
Prevent that tyre temperature is excessively high and on fire blow out occurs.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811504290.8A CN109612862B (en) | 2018-12-10 | 2018-12-10 | Experimental device and method for simulating influence of tire brake sliding friction on road surface abrasion |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811504290.8A CN109612862B (en) | 2018-12-10 | 2018-12-10 | Experimental device and method for simulating influence of tire brake sliding friction on road surface abrasion |
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| CN109612862B CN109612862B (en) | 2022-05-10 |
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| CN115876616A (en) * | 2023-03-03 | 2023-03-31 | 山西交通科学研究院集团有限公司 | Test device for testing mechanical behavior of road after repair through friction force and positive pressure |
| CN117606824A (en) * | 2024-01-19 | 2024-02-27 | 山东中亚轮胎试验场有限公司 | Wear resistance detection device for tire manufacturing |
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| CN109612862B (en) | 2022-05-10 |
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