CN111751271B - Road surface antiskid performance decay detection device - Google Patents
Road surface antiskid performance decay detection device Download PDFInfo
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- CN111751271B CN111751271B CN202010644156.9A CN202010644156A CN111751271B CN 111751271 B CN111751271 B CN 111751271B CN 202010644156 A CN202010644156 A CN 202010644156A CN 111751271 B CN111751271 B CN 111751271B
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/02—Measuring coefficient of friction between materials
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Abstract
The invention provides a road surface anti-skid property attenuation detection device, which comprises: the device comprises a frame, a resistance wheel, a power wheel, a motor, a standard wheel and a controller; the middle part of the front end of the frame is provided with a towing bar, and the front end of the towing bar is provided with a hinge joint; the resistance wheel is rotatably arranged at the bottom of the frame, a resistance adjusting device is arranged on a wheel shaft of the resistance wheel, and a first turn number sensor is arranged between the resistance wheel and the wheel shaft; the power wheels are rotatably arranged at the bottom of the frame, and second circle sensors are respectively arranged on wheel shafts of the two power wheels; the main shaft of the motor is in transmission connection with the wheel shaft of the power wheel; the standard wheel is rotatably arranged at the bottom of the frame, an anti-skid device is arranged on the wheel surface of the standard wheel, and a third turn number sensor is arranged on the wheel shaft of the standard wheel; the signal receiving end of the controller is in signal connection with the first number of turns sensor, the second number of turns sensor and the third number of turns sensor, and the signal output end of the controller is in signal connection with the resistance adjusting device and the signal receiving end of the motor.
Description
Technical Field
The invention belongs to the technical field of pavement detection, and particularly relates to a pavement anti-skid property attenuation detection device.
Background
In winter, the road surface can cause the attenuation of the anti-skid performance of the road surface due to factors such as snow falling and icing, and when the attenuation of the anti-skid performance of the road surface reaches a certain degree, vehicles can slip, so that a large number of traffic accidents are caused; therefore, the anti-skid performance attenuation condition of the road surface is detected, and the anti-skid performance attenuation condition is used as the basis of the road surface which is very required to be subjected to snow removing and deicing, so that traffic accidents caused by rainy and snowy weather in winter can be reduced pertinently. The existing pavement icing monitoring sensor with similar functions is high in manufacturing cost, cannot move, needs stable power supply, is limited in mounting position and extremely small in detection range, and does not have a regional targeted detection function.
Disclosure of Invention
In view of the above, it is an object of the present invention to provide a road surface anti-skid property attenuation detection device for overcoming the above problems or at least partially solving or alleviating the above problems.
The invention provides a road surface anti-skid property attenuation detection device, which comprises:
the vehicle comprises a vehicle frame, wherein a towing rod is arranged in the middle of the front end of the vehicle frame, and a hinge joint is arranged at the front end of the towing rod;
the resistance wheels are rotatably arranged at the bottom of the frame, a resistance adjusting device is arranged on a wheel shaft of each resistance wheel, and a first circle number sensor is arranged between each resistance wheel and the wheel shaft;
the power wheels are rotatably arranged at the bottom of the frame, and second circle sensors are respectively arranged on wheel shafts of the two power wheels;
the motor is arranged at the bottom of the frame, and a main shaft of the motor is in transmission connection with a wheel shaft of the power wheel;
the standard wheel is rotatably arranged at the bottom of the frame, an anti-skid device is arranged on the wheel surface of the standard wheel, and a third turn number sensor is arranged on the wheel shaft of the standard wheel;
the signal receiving end of the controller is in signal connection with the first turn number sensor, the second turn number sensor and the third turn number sensor, and the signal output end of the controller is in signal connection with the resistance device and the signal receiving end of the motor.
The invention also has the following optional features.
Optionally, the device also comprises a rotary table which is arranged in the middle of the wheel shaft of the resistance wheel, the rotary table is in running fit with the bottom of the front end of the frame, and one end of the towing bar is connected with the rotary table.
Optionally, the vehicle frame further comprises a differential mechanism, wherein the differential mechanism is arranged at the bottom of the rear part of the vehicle frame and is connected with the wheel shafts of the two power wheels, and the input end of the differential mechanism is connected with the main shaft of the motor.
Optionally, the standard wheel is the single wheel, the rear portion of frame is provided with the rotary drum, the upper portion of rotary drum articulates there is the wheel carrier, the standard wheel is through the pivot assembly on the wheel carrier.
Optionally, a tension spring is connected between the wheel frame and the lower end of the rotary drum, and the tension spring enables the wheel surface of the standard wheel to be always grounded.
Optionally, the resistance adjusting device comprises a friction disc and an electromagnetic friction plate, wherein the friction disc is fixed on a wheel shaft of the resistance wheel, the electromagnetic friction plate is fixed on the rotary disc, and the electromagnetic friction plate can be in contact with the friction disc after being electrified.
Optionally, the diameters of the resistance wheel, the power wheel and the standard wheel are equal.
Optionally, a battery and a counterweight are arranged on the frame.
The road surface anti-skid property attenuation detection device can calculate the attenuation degree of the road surface anti-skid property by comparing the length difference generated when the tires of the resistance wheel, the power wheel and the standard wheel roll on the ice-snow road surface in operation, so as to judge whether the road surface needs to be subjected to snow removal or deicing, ensure that the staff can reduce traffic accidents caused by rain and snow weather in winter in a targeted manner, has a large detection range, and can detect the road surface anti-skid attenuation condition in a targeted manner in different areas.
Drawings
FIG. 1 is a schematic side view of a road surface skid resistance attenuation detection device according to the present invention;
FIG. 2 is a schematic top view of the structure of FIG. 1;
fig. 3 is a view showing a control system of the road surface skid resistance attenuation detecting device of the present invention.
In the above figures: 1, a frame; 101 a battery; 102, balancing weight; 2, a towing bar; 201 a hinge joint; 3, a resistance wheel; 4 resistance adjusting device; 401 friction disc; 402 electromagnetic friction plate; a first turn number sensor 5; 6, a power wheel; 7 a second turn sensor; 8, a motor; 9 standard wheels; a third turn sensor 10; 11 a controller; 12 turntables; 13 differential mechanism; 14 a drum; 15 wheel frames; a 16 tension spring; 17 mobile terminal.
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Detailed Description
Example 1
Referring to fig. 1, 2 and 3, an embodiment of the present invention provides a road surface anti-skid property attenuation detection device, including: the device comprises a frame 1, a pair of resistance wheels 3, a pair of power wheels 6, a motor 8, a standard wheel 9 and a controller 11; the middle part of the front end of the frame 1 is provided with a towing bar 2, and the front end of the towing bar 2 is provided with a hinge joint 201; the resistance wheel 3 is rotatably arranged at the bottom of the frame 1, a resistance adjusting device 4 is arranged on a wheel shaft of the resistance wheel 3, and a first turn number sensor 5 is arranged between the resistance wheel 3 and the wheel shaft; the power wheels 6 are rotatably arranged at the bottom of the frame 1, and second circle sensors 7 are respectively arranged on the wheel shafts of the two power wheels 6; the motor 8 is arranged at the bottom of the frame 1, and a main shaft of the motor 8 is in transmission connection with a wheel shaft of the power wheel 6; the standard wheel 9 is rotatably arranged at the bottom of the frame 1, an anti-skid device is arranged on the wheel surface of the standard wheel 9, and a third turn number sensor 10 is arranged on the wheel shaft of the standard wheel 9; the signal receiving end of the controller 11 is in signal connection with the first turn number sensor 5, the second turn number sensor 7 and the third turn number sensor 10, and the signal output end of the controller 11 is in signal connection with the resistance adjusting device 4 and the signal receiving end of the motor 8.
When the device is used, a worker drags the frame 1 to travel along a road surface to be tested through the automobile connecting towing bar 2, and the worker can control the controller 11 through a remote control device or a mobile terminal such as a mobile phone and the like, so that the controller 11 controls the motor 8 to drive the pair of power wheels 6 to rotate, and the pair of resistance wheels 3 and the standard wheels 9 arranged below the frame 1 roll along the road surface to be tested; meanwhile, the controller 11 detects the number of rolling turns of the resistance wheel 3 through the first number of turns sensor 5, detects the number of rolling turns of the power wheel 6 through the second number of turns sensor 7, detects the number of rolling turns of the standard wheel 9 through the third number of turns sensor 10, and can calculate the rolling length by multiplying the number of rolling turns by the circumference of the wheel surface; the controller 11 may send the above detection result to the mobile terminal 17, and the worker may determine the degree of loss of the anti-skid property of the road surface to be detected through the detection result. The first number of turns sensor 5, the second number of turns sensor 7 and the third number of turns sensor 10 all adopt the number of turns sensors that are mature in the market technology.
The wheel axle resistance of the standard wheel 9 is minimum, and the wheel surface is provided with a slide chain or a slide nail, so that normal rolling can be ensured under any condition, and the running length of the frame on the road surface to be tested can be obtained by taking the rolling length of the standard wheel 9 as a reference; the wheel surface of the resistance wheel 3 is a normal tire, the distance between two wheels takes the axial length of a commercial vehicle or the distance between two wheel tracks of a road surface lane as a reference, and a worker can apply wheel shaft resistances of different grades through the resistance adjusting device 4, so that a vehicle braking system and self gravity are simulated, the braking capacity is controlled to normally roll on the road surface which runs according with the design specification requirement of the asphalt road surface, and when the friction coefficient of the road surface is reduced, the rolling length of the resistance wheel 3 is smaller than the rolling length of the standard wheel 9, thereby judging the loss condition of the anti-skid performance of the road surface. The wheel surface friction force, the double wheel distance and the self gravity of the power wheel 6 are the same as those of the resistance wheel, except that the wheel shaft of the power wheel 6 is in transmission connection with the main shaft of the motor 8, so that power can be stably output, and when the road surface friction coefficient is reduced, the rolling length of the power wheel 6 is greater than that of the standard wheel 9 due to the intervention of power, thereby judging the loss condition of the road surface anti-skid performance.
And observing and recording for a long time, and obtaining the number of traffic accidents corresponding to the detection data for the number of the rolling length of the resistance wheel 3 in the unit journey which is smaller than the rolling length of the standard wheel 9 and the number of the rolling length of the power wheel 6 in the unit journey which is larger than the rolling length of the standard wheel 9, and finally selecting the corresponding detection data according to the limiting requirement on the number of the traffic accidents to be used as the basis for whether snow removing and deicing work is performed.
Example 2
Referring to fig. 1 and 2, on the basis of embodiment 1, the device further comprises a turntable 12, wherein the turntable 12 is arranged in the middle of the wheel shaft of the resistance wheel 3, the turntable 12 is in running fit with the bottom of the front end of the frame 1, and one end of the towing bar 2 is connected with the turntable 12.
When the front vehicle rotates, the drag link 2 and the rotary table 12 are driven to rotate, and at the moment, the two resistance wheels 3 turn along with the rotary table 12 and cannot slide relatively.
Example 3
Referring to fig. 1 and 2, on the basis of embodiment 1, a differential 13 is further included, the differential 13 is disposed at the bottom of the rear portion of the frame 1, the differential 13 is connected with the axles of the two power wheels 6, and the input end of the differential 13 is connected with the main shaft of the motor 8.
The power wheels 6 are provided with driving forces, when the frame 1 turns, in order to ensure that the two power wheels 6 slip due to different rolling distances, a differential 13 is connected to the wheel shafts of the power wheels 6, so that the power distribution on the two power wheels 6 is even when the two power wheels 6 turn, and the two power wheels cannot slip when turning under the same power.
Example 4
Referring to fig. 1 and 2, on the basis of embodiment 1, the standard wheel 9 is a single wheel, a rotary drum 14 is provided at the rear of the frame 1, a wheel frame 15 is hinged to the upper portion of the rotary drum 14, and the standard wheel 9 is mounted on the wheel frame 15 through a rotation shaft.
When the frame 1 turns, the standard wheel 9 is supported by the wheel frame 15 behind the frame 1, and can naturally rotate around the rotary drum 14 without sliding relative to the ground.
Example 5
Referring to fig. 1, on the basis of example 4, a tension spring 16 is connected between the wheel frame 15 and the lower end of the drum 14, and the tension spring 16 constantly grounds the wheel surface of the standard wheel 9.
The rear end of the wheel frame 15 is pulled downwards by the tension spring 16, so that the wheel surface of the standard wheel 9 is fully contacted with the ground, and the wheel frame 1 cannot slip when moving behind.
Example 6
Referring to fig. 2, on the basis of embodiment 2, the resistance adjusting device 4 includes a friction plate 401 and an electromagnetic friction plate 402, the friction plate 401 is fixed on the wheel shaft of the resistance wheel 3, the electromagnetic friction plate 402 is fixed on the turntable 12, and the electromagnetic friction plate 402 can be in contact with the friction plate 401 after being energized.
The electromagnetic friction plate 402 in the resistance adjusting device 4 moves to the friction disc 401 until contacting after being electrified, friction is increased, the rotation resistance of the wheel shaft of the resistance wheel 3 is improved through the friction disc 401, a plurality of resistance adjusting devices 4 are arranged between the rest wheel shafts of the rotary disc 12, the resistance is divided into different resistance gears, and the different resistance gears respectively represent the starting of the resistance adjusting devices with different numbers.
Example 7
Referring to fig. 1 and 2, the diameters of the resistance wheel 3, the power wheel 6 and the standard wheel 9 are equal on the basis of example 1.
The turns of the resistance wheel 3, the power wheel 6 and the standard wheel 9 are mutually referenced, so that the diameters thereof should be uniform.
Example 8
Referring to fig. 1, on the basis of embodiment 1, a battery 101 and a counterweight 102 are provided on a vehicle frame 1.
The battery 101 supplies power to the control system and the motor 8, after the counterweight 102 is loaded on the frame 1, the whole weight is equivalent to the weight of a common car, and the loads on the resistance wheel 3 and the power wheel 6 are equivalent to the common wheel load, so that the reliability of the test result is improved.
The present invention is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present invention are intended to be included in the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims. The components and structures not specifically described in this embodiment are well known in the art and are not described in detail herein.
Claims (6)
1. The utility model provides a road surface skid resistance performance decay detection device which characterized in that includes:
the vehicle comprises a vehicle frame (1), wherein a towing bar (2) is arranged in the middle of the front end of the vehicle frame (1), and a hinge joint (201) is arranged at the front end of the towing bar (2);
the resistance wheels (3) are rotatably arranged at the bottom of the frame (1), a resistance adjusting device (4) is arranged on a wheel shaft of each resistance wheel (3), and a first turn number sensor (5) is arranged between each resistance wheel (3) and the wheel shaft;
the power wheels (6) are rotatably arranged at the bottom of the frame (1), and second circle sensors (7) are respectively arranged on wheel shafts of the two power wheels (6);
the motor (8) is arranged at the bottom of the frame (1), and a main shaft of the motor (8) is in transmission connection with a wheel shaft of the power wheel (6);
the standard wheel (9), the standard wheel (9) is rotatably arranged at the bottom of the frame (1), an anti-slip device is arranged on the wheel surface of the standard wheel (9), and a third turn number sensor (10) is arranged on the wheel shaft of the standard wheel (9); the standard wheel (9) is a single wheel, a rotary drum (14) is arranged at the rear part of the frame (1), a wheel frame (15) is hinged to the upper part of the rotary drum (14), and the standard wheel (9) is assembled on the wheel frame (15) through a rotating shaft; a tension spring (16) is connected between the wheel frame (15) and the lower end of the rotary drum (14), and the tension spring (16) enables the wheel surface of the standard wheel (9) to be always grounded;
the controller (11), the signal receiving part of controller (11) with first number of turns sensor (5) with second number of turns sensor (7) and third number of turns sensor (10) signal connection, the signal output part of controller (11) with resistance adjusting device (4) and the signal receiving part signal connection of motor (8).
2. The pavement anti-skid performance attenuation detection device according to claim 1, further comprising a rotary table (12), wherein the rotary table (12) is arranged in the middle of a wheel shaft of the resistance wheel (3), the rotary table (12) is in running fit with the bottom of the front end of the frame (1), and one end of the towing bar (2) is connected with the rotary table (12).
3. The road surface anti-skid property attenuation detection device according to claim 1, further comprising a differential mechanism (13), wherein the differential mechanism (13) is arranged at the bottom of the rear part of the frame (1), the differential mechanism (13) is connected with the wheel shafts of the two power wheels (6), and the input end of the differential mechanism (13) is connected with the main shaft of the motor (8).
4. The pavement anti-skid property attenuation detection device according to claim 2, wherein the resistance adjustment device (4) comprises a friction disc (401) and an electromagnetic friction plate (402), the friction disc (401) is fixed on a wheel shaft of the resistance wheel (3), the electromagnetic friction plate (402) is fixed on the rotary disc (12), and the electromagnetic friction plate (402) can be contacted with the friction disc (401) after being electrified.
5. The device according to claim 1, characterized in that the diameters of the resistance wheel (3), the power wheel (6) and the standard wheel (9) are equal.
6. The road surface skid resistance attenuation detection device according to claim 1, wherein a battery (101) and a counterweight (102) are provided on the vehicle frame (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010644156.9A CN111751271B (en) | 2020-07-07 | 2020-07-07 | Road surface antiskid performance decay detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010644156.9A CN111751271B (en) | 2020-07-07 | 2020-07-07 | Road surface antiskid performance decay detection device |
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| Publication Number | Publication Date |
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| CN111751271A CN111751271A (en) | 2020-10-09 |
| CN111751271B true CN111751271B (en) | 2023-08-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010644156.9A Active CN111751271B (en) | 2020-07-07 | 2020-07-07 | Road surface antiskid performance decay detection device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| JP2007278816A (en) * | 2006-04-06 | 2007-10-25 | Nippo Corporation:Kk | Measuring device for coefficient of dynamic friction |
| CN206523418U (en) * | 2017-03-10 | 2017-09-26 | 北京今谷神箭测控技术研究所 | Road surface longitudinal force friction coefficient testing car |
| 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 |
| CN209311302U (en) * | 2018-12-24 | 2019-08-27 | 长安大学 | A kind of pavement skid resistance ability attenuation law test specimen rolling device |
| CN110618090A (en) * | 2019-09-27 | 2019-12-27 | 佛山科学技术学院 | Road surface skid resistance testing arrangement |
-
2020
- 2020-07-07 CN CN202010644156.9A patent/CN111751271B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007278816A (en) * | 2006-04-06 | 2007-10-25 | Nippo Corporation:Kk | Measuring device for coefficient of dynamic friction |
| CN206523418U (en) * | 2017-03-10 | 2017-09-26 | 北京今谷神箭测控技术研究所 | Road surface longitudinal force friction coefficient testing car |
| 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 |
| CN209311302U (en) * | 2018-12-24 | 2019-08-27 | 长安大学 | A kind of pavement skid resistance ability attenuation law test specimen rolling device |
| CN110618090A (en) * | 2019-09-27 | 2019-12-27 | 佛山科学技术学院 | Road surface skid resistance testing arrangement |
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