CN206618673U - Low speed adjustable sliding rate tire wear smooth test device for road friction coefficients - Google Patents
Low speed adjustable sliding rate tire wear smooth test device for road friction coefficients Download PDFInfo
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- CN206618673U CN206618673U CN201720387633.1U CN201720387633U CN206618673U CN 206618673 U CN206618673 U CN 206618673U CN 201720387633 U CN201720387633 U CN 201720387633U CN 206618673 U CN206618673 U CN 206618673U
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Abstract
A kind of low speed adjustable sliding rate tire wear smooth test device for road friction coefficients, including frame, it is arranged on the slippage bracket in frame, mount for power system, the top of slippage bracket is provided with two slide bars by tensioning apparatus, sliding switch is provided with the side wall of slippage bracket, travel switch, slide device sliding back and forth is provided with slide bar, the bottom of slide device is provided with axle bed, sliding decelerator is provided with axle bed, friction pulley is arranged on axle bed by wheel shaft, friction pulley is connected by transmission mechanism with sliding decelerator, experimental rig is provided with frame immediately below slide device, slide device is connected by swing arm with the dynamical system on mount for power system, sliding switch, travel switch, dynamical system, experimental rig is electrically connected with movable controller；The utility model is simple in construction, easy to use, obtained experimental result reliably can evaluate and predict the function of surface on road surface, can promote the use of pavement maintenance maintenance technology field.
Description
Technical field
The utility model belongs to pavement of road curing means or equipment technical field, and in particular to can be simulated to one kind
Under different slip rates, one direction exercises wheel wear road deck mechanism, and can test and be worn away road deck coefficient of friction
Testing machine.
Background technology
Pavement skid resistance condition is to influence the key factor of traffic safety.Road is used as a kind of band being chronically exposed in environment
Columnar structure thing, its surface is that the antiskid performance on road surface is constantly sent out with the comprehensive function of exterior vehicle load and amblent air temperature
Raw decay.For the Trueattenuation process of more preferable simulated roadway Surface Anti-slide, domestic and foreign scholars are made that substantial amounts of exert
Power.
Foreign countries also develop some indoor abrasion dresses in the case of based on the experiment of full size cun and live pavement test
Put.Packet size experiment mainly includes various circuits, straight way, large-scale accelerated loading equipment etc., and sufficient dimension test can be more fully
The actual Driving Loading of simulation, but its shortcoming is to expend huge, the cycle of experiment is relatively long；Live pavement test is such as
Japan builds the live circuit in outdoor for saving building research institute, US West's circular track test.Huge, the test period is invested in this kind of experiment
It is long, as conventional methods or it can not be individually used for studying the performance of road surface in a certain respect.The indoor simulation device such as U.S.
ASTM steamboat abrasion and the Standard erosion experiment in Europe etc..Domestic scholars are from original adoption Measuring Device test simulation anti-skid test
Start, to all kinds of indoor abrasion analogue means are gradually developed, made great progress in terms of simulated roadway antiskid decay, now
Country's experiment attrition apparatus mainly has the road surface accelerated loading attrition apparatus of Nanjing Information engineering Univ, the road surface material of Chang An University
Material accelerates attrition apparatus, and concrete accelerates abrasion test device etc..
The load wheel of above-mentioned all kinds of indoor abrasion analogue means can only apply vertical force to test specimen, it is impossible to set slip rate,
Friction pulley and actual wheel width also, and are the two-way test objectives for wearing away back and forth, not meeting " sliding " and " one direction ",
Road surface actual loading situation has differences when being travelled with vehicle on road surface, obtained experimental result also can not reliably evaluate and
Predict the function of surface on road surface.
The content of the invention
Technical problem to be solved in the utility model is to overcome the shortcomings of above-mentioned abrasion analogue means, provides one kind and set
Meter it is reasonable, simple in construction, easy to use, can truly simulate tire satisfy the need panel various attritions and can test in difference
The experimental provision of the coefficient of friction of road deck under attrition.
Solving the technical scheme of above-mentioned technical problem use is：Including frame, slippage bracket, power in frame are arranged on
System frame, it is characterised in that：The top of described slippage bracket is provided with two by tensioning apparatus along the length direction of frame
It is provided with sliding switch, travel switch, described slide bar and sets on the slide bar that root is parallel to each other, the side wall of described slippage bracket
Slide device sliding back and forth is equipped with, the bottom of described slide device, which is provided with axle bed, described axle bed, is provided with cunning
Decelerator is moved, friction pulley is arranged on axle bed by wheel shaft, described friction pulley is connected by transmission mechanism with sliding decelerator
Connect, be provided with experimental rig in described frame immediately below slide device, described slide device is by swing arm with being arranged on
Dynamical system on mount for power system is connected, described sliding switch, travel switch, dynamical system, experimental rig with can
Mobile controller is electrically connected.
Slide device of the present utility model includes setting column between the bottom panel and top panel, and described top plate bottom is set
There is the slide opening for installing slide bar, described top plate center is provided with vertically moving cylinder, the work of described cylinder
Stopper rod is fixedly installed on bottom plate, and described cylinder is electrically connected with movable controller, and described bottom base plate sets promising gas
Cylinder provides the air pump of pressure.
Dynamical system of the present utility model includes motor, and described motor output shaft passes through shaft coupling and motor reducer
Input shaft is connected, and the outboard bearing being connected with swing arm is provided with the output shaft of described motor reducer, and described is outer
Stretch and torque sensor is provided with bearing, described motor, torque sensor are electrically connected with movable controller.
Experimental rig of the present utility model includes casing and is arranged on what casing inner bottom part was electrically connected with movable controller
The temperature sensor electrically connected with movable controller, described electricity are provided with electric heater unit, the side wall of described casing
Test specimen is provided with the top of heater.
Temperature sensor of the present utility model is symmetricly set on wall box.
Friction pulley of the present utility model includes steel wheel and the rubber wheel being wrapped in outside steel wheel.
Transmission mechanism of the present utility model is sprocket wheel chain drive or belt gear.
The beneficial effects of the utility model are as follows：
First, overcome existing apparatus can only two-way abrasion defect, realize that one direction is worn away, can true simulating vehicle tire
Satisfy the need the various abrasion of panel, making it, the road surface actual loading situation in road traveling has fine difference with vehicle.
2nd, existing apparatus is overcome to apply the defect of vertical force to test specimen, the utility model can back and forth slide, can set
Slip rate, can accurately measure the coefficient of friction of the road deck after different attritions.
3rd, simple in construction, easy to use, obtained experimental result reliably can evaluate and predict the function of surface on road surface.
The utility model can promote the use of pavement maintenance maintenance technology field.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model one embodiment.
Fig. 2 is Fig. 1 front view.
Fig. 3 is Fig. 1 left view.
Fig. 4 is the structural representation of friction pulley 15 and wheel shaft 13 in Fig. 1.
In figure：1st, frame；2nd, slippage bracket；3rd, sliding switch；4th, tensioning apparatus；5th, slide bar；6th, slide device；7th, put
Arm；8th, travel switch；9th, dynamical system；10th, mount for power system；11st, decelerator is slid；12nd, axle bed；13rd, wheel shaft；14th, pass
Motivation structure；15th, friction pulley；16th, experimental provision；17th, movable controller；6-1, bottom plate；6-2, column；6-3, top plate；6-4、
Cylinder；6-5, air pump；A, slide opening；9-1, outboard bearing；9-2, torque sensor；9-3, motor；9-4, motor reducer；15-
1st, steel wheel；15-2, rubber wheel；16-1, temperature sensor；16-2, test specimen；16-3, electric heater unit, 16-4, casing.
Embodiment
The utility model is described in further details with reference to the accompanying drawings and examples, but the utility model is not limited to this
A little embodiments.
Embodiment 1
In Fig. 1,3, the utility model low speed adjustable sliding rate tire wear smooth test device for road friction coefficients, including machine
Frame 1, slippage bracket 2, mount for power system 10 in frame, the top of slippage bracket 2 are fixedly connected on screw threads for fastening connector
Length direction of the portion by tensioning apparatus 4 along frame 1 is installed with two slide bars being parallel to each other 5, the side wall of slippage bracket 2
On be fixedly connected be provided with sliding switch 3, travel switch 8, sliding switch 3, travel switch 8 pass through wire and movable controller
17 are connected, and movable controller is market products, model LSM-7, and being provided with slide bar 5 can be along the length side of frame 1
To the slide device 6 slidably reciprocated, the slide device 6 of the present embodiment is by bottom plate 6-1, column 6-2, top plate 6-3, cylinder 6-4, gas
Pump 6-5 is connected and composed, and column 6-2 is fixedly connected between bottom plate 6-1 and top plate 6-3 with screw threads for fastening connector, top plate 6-3 bottoms
Portion corner is symmetrily processed with the slide opening a of 4 installation slide bars 5, and top plate 6-3 center is fixedly connected with screw threads for fastening connector
Vertically movable cylinder 6-4 is installed, cylinder 6-4 piston rod is fixedly mounted on bottom plate 6-1, cylinder 6-4
Electrically connected with movable controller 17, control it to move by movable controller 17, connected in bottom plate 6-1 bottoms with screw threads for fastening
Part, which is fixedly connected, installs the air pump 6-5 that promising cylinder 6-4 provides pressure, and movable controller 17 controls air pump 6-5 to be cylinder 6-4
Lasting inflation, makes it keep certain pressure, and cylinder 6-4 piston rod acts on bottom plate 6-1, so that friction pulley 15 keeps one
Fixed pressure, left end is driven to from test specimen 16-2 right-hand member, and the control air pump of movable controller 17 6-5 changes cylinder 6-4 pressure
Power, drives bottom plate 6-1 to rise, and makes friction pulley 15 hanging, when friction pulley 15 and slide device 6 return to test specimen 16-2 right-hand member,
It falls the control of movable controller 17, starts next circulation, it is achieved thereby that the test of one direction slip rate.
In Fig. 2,4, the bottom of slide device 6 is welded with axle bed 12, and screw threads for fastening connector is used on axle bed 12
It is fixedly connected and sliding decelerator 10 is installed, friction pulley 15 is arranged on axle bed 12 by wheel shaft 13, the friction pulley of the present embodiment
15 are connected and composed by steel wheel 15-1 and rubber wheel 15-2, and rubber wheel 15-2 is wrapped in steel wheel 15-1 outside, rubber wheel 15-2 energy
Effect of the more preferable simulating vehicle tire in road traveling is reached, the friction pulley 15 of the present embodiment should be designed as with one fixed width
Structure, facilitates later stage test configuration depth and portable pendulum tester pendulum value, and friction pulley 15 passes through transmission mechanism 14 and the sliding phase of decelerator 10
Connection, further, the transmission mechanism 14 of the present embodiment can be that sprocket chain strip transmission mechanism can also be belt gear,
The slip rate that decelerator 10 controls friction pulley 15 by transmission mechanism 14 is slid, is installed in frame 1 immediately below the 6 of slide device
There is experimental rig 16, the experimental provision 16 of the present embodiment is by casing 16-4, electric heater unit 16-3, test specimen 16-2, TEMP
Device 16-1 is connected and composed, and electric heater unit 16-3, electric heater unit 16-3 and removable control are provided with casing 16-4 inner bottom parts
Device 17 processed is connected, and test specimen 16-2 is placed with the top of electric heater unit 15-3, and temperature is provided with casing 16-1 side wall
Sensor 16-1, further, temperature sensor 16-1 can be symmetrically installed on casing 16-1 two side, temperature sensor
16-1 is connected by wire with movable controller 17, and test specimen 26-2 is put into after casing 16-1, is added water and by removable control
Device 17 processed sets test temperature, and electric heater unit 16-3 is actuated for temperature adjustment, and temperature sensor 16-1 is in real time by casing
Temperature feedback in 16-1 is to movable controller 17, and movable controller 17 judges whether temperature reaches environment temperature and make
It is corresponding to indicate.
In fig. 2, slide device 6 is fixedly connected installed in dynamical system branch by swing arm 7 with screw threads for fastening connector
Dynamical system 9 on frame 10 is connected, and the dynamical system 9 of the present embodiment is by outboard bearing 9-1, torque sensor 9-2, motor 9-
3rd, motor reducer 9-4 is connected and composed, and motor 9-3 output shaft is connected by shaft coupling with motor reducer 9-4 input shaft
Connect, be provided with the outboard bearing 9-1 being connected with swing arm 7, outboard bearing 9-1 and install on motor reducer 9-4 output shaft
There is torque sensor 9-2, motor 9-3, torque sensor 9-2 are electrically connected with movable controller 17, and torque sensor 9-2 is real-time
Moment of torsion during outboard bearing 9-1 rotations is measured, and sends movable controller 17, turn of the setting motor of movable controller 17 to
Speed, motor 9-3 drives outboard bearing 9-1 to rotate, swing arm 7 is swung back and forth after motor reducer 9-4 decelerations, drives and slides
Moving device 6 is moved back and forth, and is rubbed so as to drive friction pulley 15 to be moved by setting speed on test specimen 16-2 surface.
Operation principle of the present utility model is as follows：
Test temperature needed for experiment, slip rate, pressure, friction pulley 15 wear smooth are set by movable controller 17
Number, motor speed, travel switch 8 and sliding switch 3 are opened, motor 9-3 slows down through motor reducer 9-4, then by overhanging
Bearing 9-1 drives swing arm 7 to swing, and swing arm 7 promotes slide device 6 to be moved back and forth along slide bar 5, and slide device 6 drives friction pulley 15
Moved back and forth in test specimen 16-2, friction pulley 15 is produced friction to test specimen 16-2, sliding decelerator 11 is hindered by transmission mechanism 14
Only friction pulley 15 is rotated, and reaches the purpose for producing sliding, and friction pulley 15 from test specimen 16-2 right-hand member are driven to after left end, cylinder 6-
4 decompressions, are lifted friction pulley 15 by the cylinder 6-4 piston rods for acting on bottom plate 6-1, and return to original position, under progress
One circulation, the numerical value that collection storage torque sensor 9-2, temperature sensor 16-1 are passed back in real time of movable controller 17, note
The actual Rubbing number of friction pulley 15 is recorded, numerical value is shown.
Claims (7)
1. a kind of low speed adjustable sliding rate tire wear smooth test device for road friction coefficients, including frame, are arranged in frame
Slippage bracket, mount for power system, it is characterised in that：Length of the top of described slippage bracket by tensioning apparatus along frame
Direction is provided with two slide bars being parallel to each other, and sliding switch, travel switch, institute are provided with the side wall of described slippage bracket
Slide device sliding back and forth is provided with the slide bar stated, the bottom of described slide device is provided with axle bed, described axle
Sliding decelerator is provided with seat, friction pulley is arranged on axle bed by wheel shaft, and described friction pulley passes through transmission mechanism and cunning
Move decelerator to be connected, be provided with experimental rig in described frame immediately below slide device, described slide device passes through
Swing arm is connected with the dynamical system on the mount for power system, described sliding switch, travel switch, dynamical system,
Experimental rig is electrically connected with movable controller.
2. low speed adjustable sliding rate tire wear smooth test device for road friction coefficients according to claim 1, its feature exists
In：Described slide device includes setting column between the bottom panel and top panel, and described top plate bottom is provided with installation slide bar
Slide opening, described top plate center is provided with vertically moving cylinder, and the piston rod of described cylinder, which is fixed, to be set
Put on bottom plate, described cylinder is electrically connected with movable controller, described bottom base plate sets promising cylinder to provide pressure
Air pump.
3. low speed adjustable sliding rate tire wear smooth test device for road friction coefficients according to claim 1, its feature exists
In：Described dynamical system includes motor, and described motor output shaft is connected by shaft coupling with the input shaft of motor reducer
Connect, be provided with the outboard bearing being connected with swing arm, described outboard bearing and set on the output shaft of described motor reducer
It is equipped with torque sensor, described motor, torque sensor are electrically connected with movable controller.
4. low speed adjustable sliding rate tire wear smooth test device for road friction coefficients according to claim 1, its feature exists
In：Described experimental rig includes casing and is arranged on the electric heater unit that casing inner bottom part is electrically connected with movable controller,
It is provided with the side wall of described casing at the top of the temperature sensor electrically connected with movable controller, described electric heater unit
It is provided with test specimen.
5. low speed adjustable sliding rate tire wear smooth test device for road friction coefficients according to claim 4, its feature exists
In：Described temperature sensor is symmetricly set on wall box.
6. low speed adjustable sliding rate tire wear smooth test device for road friction coefficients according to claim 1, its feature exists
In：Described friction pulley includes steel wheel and the rubber wheel being wrapped in outside steel wheel.
7. the low speed adjustable sliding rate tire wear smooth surface friction coefficient test dress according to claim 1~6 any one
Put, it is characterised in that：Described transmission mechanism is sprocket wheel chain drive or belt gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720387633.1U CN206618673U (en) | 2017-04-13 | 2017-04-13 | Low speed adjustable sliding rate tire wear smooth test device for road friction coefficients |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720387633.1U CN206618673U (en) | 2017-04-13 | 2017-04-13 | Low speed adjustable sliding rate tire wear smooth test device for road friction coefficients |
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| Publication Number | Publication Date |
|---|---|
| CN206618673U true CN206618673U (en) | 2017-11-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720387633.1U Active CN206618673U (en) | 2017-04-13 | 2017-04-13 | Low speed adjustable sliding rate tire wear smooth test device for road friction coefficients |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108344683A (en) * | 2018-02-28 | 2018-07-31 | 刘剑 | A kind of surface friction coefficient detection device |
| CN108760622A (en) * | 2018-06-08 | 2018-11-06 | 南京熙赢测控技术有限公司 | A kind of slip rate regulating device for road surface profile frictional coefficient tester |
| CN109507105A (en) * | 2018-11-16 | 2019-03-22 | 长安大学 | A kind of road antiskid Performance Test System and its test method |
-
2017
- 2017-04-13 CN CN201720387633.1U patent/CN206618673U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108344683A (en) * | 2018-02-28 | 2018-07-31 | 刘剑 | A kind of surface friction coefficient detection device |
| CN108344683B (en) * | 2018-02-28 | 2020-04-24 | 鲍菊芳 | Road surface friction coefficient detection device |
| CN108760622A (en) * | 2018-06-08 | 2018-11-06 | 南京熙赢测控技术有限公司 | A kind of slip rate regulating device for road surface profile frictional coefficient tester |
| CN109507105A (en) * | 2018-11-16 | 2019-03-22 | 长安大学 | A kind of road antiskid Performance Test System and its test method |
| CN109507105B (en) * | 2018-11-16 | 2021-06-15 | 长安大学 | Road anti-skid performance test system and test method thereof |
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