Road pavement antiskid performance detection device

Abstract

The utility model provides a road pavement antiskid performance detection device, which comprises a bottom plate and a test pavement arranged at the top end of the bottom plate, a test vehicle is arranged on the test pavement, one side of the bottom plate is fixedly provided with a coiling assembly through a support, the coiling assembly comprises a coiling wheel, a pull rope is coiled on the coiling wheel, and the pull rope is connected with the test vehicle. A transverse pull rod is arranged at the other end of the pull rope, a hook is fixedly arranged on the pull rod, the hook is hung at the tail end of the test vehicle, and a tension sensor is arranged at the connecting part of the test vehicle and the hook. Compared with the prior art, the device has the following beneficial effects: before detection, an external water source is uniformly sprayed from the water spraying pipe to a tested road surface along the water spraying pipe, so that the similarity of the skid resistance of the tested road surface and the skid resistance of a road surface in rainy days is higher, the simulation effect is better, and the detection scene of the detection device has multiple surfaces.

Description

Technical Field

[0001] This utility model is a road surface anti-skid performance testing device, belonging to the field of road surface anti-skid testing. Background Technology

[0002] With the rapid development of highway transportation in my country, traffic flow has increased dramatically. While economic benefits have improved significantly, traffic accidents have also risen. According to investigations, high-speed driving is a major cause of traffic accidents. High-speed vehicle travel places stringent demands on road surface skid resistance and safety. The road surface friction coefficient is a crucial technical parameter reflecting the road surface's skid resistance; it not only determines the road's capacity but also directly affects traffic safety.

[0003] The anti-skid performance of a road surface is mainly related to the properties of the road material itself and the roughness of the road surface. These are the main factors affecting road safety performance. Therefore, accurate testing of the anti-skid performance of a road surface is of great significance. Existing anti-skid tests only test the static friction of objects on the road surface, which cannot truly reflect the friction and anti-skid situation between vehicles and the ground. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a road surface anti-skid performance testing device.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0006] A road surface anti-skid performance testing device includes a base plate and a test road surface set on the top of the base plate. A test vehicle is set on the test road surface. A cable winding assembly is fixedly mounted on one side of the base plate by a bracket. The cable winding assembly includes a cable winding wheel with a pull rope wound on it. A horizontal pull rod is set at the other end of the pull rope, and a hook is fixedly mounted on the pull rod. The hook is hung on the rear end of the test vehicle, and a tension sensor is set at the connection between the test vehicle and the hook. Side baffles are fixedly mounted on both sides of the base plate. An infrared beam is fixedly mounted on the inner side of one of the side baffles. A mounting frame is fixedly mounted on the base plate, and a water spray pipe is set on the top of the mounting frame. Water spray nozzles are evenly arranged at the bottom end of the water spray pipe.

[0007] Furthermore, the bracket includes an L-shaped plate fixed to one side of the base plate, a U-shaped frame fixedly mounted on the L-shaped plate, and the winding wheel rotatably mounted inside the U-shaped frame.

[0008] Furthermore, a drive motor is fixedly installed on one side of the outer wall of the U-shaped frame, and the output end of the drive motor is connected to the winding reel. A guide pipe is connected to one side of the water spray pipe, and the guide pipe is connected to an external water pipe.

[0009] Furthermore, the inner surface of each side baffle is provided with a transverse sliding groove, and the bottom and top of each transverse sliding groove are provided with a secondary transverse sliding groove, wherein the two ends of the pull rod extend into the corresponding transverse sliding groove.

[0010] Furthermore, the top and bottom surfaces of the extension end of the pull rod are provided with mounting seats, and the mounting seats are provided with rollers, which are rotatably disposed in the corresponding secondary transverse sliding grooves.

[0011] Furthermore, a support platform is provided below the base plate. Both ends of one side of the support platform are connected to cylinders via hinged components. The telescopic rods of the cylinders are hinged to the bottom of the base plate through the hinged components. A rotating component is provided between the other side of the base plate and the support platform.

[0012] Furthermore, the rotating component includes a support plate fixed to the top of the support platform, a cylinder fixed to the top of the support plate, two triangular plates fixed to one end of the base plate, a round rod fixed between the triangular plates, and the cylinder slidably sleeved on the outer surface of the round rod.

[0013] Furthermore, a through plate is fixedly provided on the base plate, and an opening is provided on the through plate for the pull rope to pass through.

[0014] The beneficial effects of this utility model are:

[0015] First, the trolley is placed at the starting point of the simulated road surface. Then, the drive of the reel moves the simulated trolley by pulling the rope, lever, and hook. During the movement of the trolley, the data measured by the infrared sensors set in the side baffles can be used to calculate the relationship between the speed of the test vehicle and time. At the same time, the tension sensor can detect the tension of the rope on the trolley in real time. The tension of the tension sensor and the speed of the test vehicle are displayed in real time on the computer interface, showing their relationship with time. By increasing the external load of the test vehicle and conducting multiple tests, the rolling friction force between the simulated wheels and the simulated road surface is finally calculated through comprehensive calculation.

[0016] Before testing, external water is sprayed evenly from the water pipe onto the test road surface. This makes the test road surface more similar to the anti-slip properties of a rainy road surface, resulting in a better simulation effect. Therefore, the testing device can be used in multiple testing scenarios. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a front view of a road surface anti-skid performance testing device according to the present invention;

[0019] Figure 2 This is a schematic diagram of the secondary transverse chute of a road surface anti-skid performance testing device according to the present invention;

[0020] Figure 3 This is an enlarged schematic diagram of point A of the road surface anti-skid performance testing device of this utility model;

[0021] Figure 4 This is a schematic diagram of the roller of a road surface anti-skid performance testing device according to the present invention.

[0022] In the diagram: 1. Base plate; 2. Test road surface; 3. Test vehicle; 4. L-shaped plate; 5. U-shaped frame; 6. Reel; 7. Pull rope; 8. Pull rod; 9. Hook; 10. Side baffle; 11. Infrared ray; 12. Mounting frame; 13. Water spray pipe; 14. Water spray head; 15. Drive motor; 16. Guide pipe; 17. Transverse chute; 18. Secondary transverse chute; 19. Mounting seat; 20. Roller; 21. Support platform; 22. Cylinder; 23. Support plate; 24. Cylinder; 25. Triangular plate; 26. Round rod; 27. Through plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4 This utility model provides a technical solution: a road surface anti-skid performance testing device, including a base plate 1 and a test road surface 2 set at the top of the base plate 1. A test vehicle 3 is set on the test road surface 2. A winding assembly is fixedly provided on one side of the base plate 1 by a bracket. The winding assembly includes a winding wheel 6, on which a pull rope 7 is wound. A horizontal pull rod 8 is provided at the other end of the pull rope 7. A hook 9 is fixedly provided on the pull rod 8. The hook 9 is hung on the tail end of the test vehicle 3. A tension sensor is provided at the connection between the test vehicle 3 and the hook 9. Side baffles 10 are fixedly provided on both sides of the base plate 1. An infrared beam 11 is fixedly provided on the inner side of one of the side baffles 10. A mounting frame 12 is fixedly provided on the base plate 1. A water spray pipe 13 is provided at the top of the mounting frame 12. Water spray heads 14 are evenly provided at the bottom end of the water spray pipe 13.

[0025] See Figure 1-2 The bracket includes an L-shaped plate 4 fixed to one side of the base plate 1, a U-shaped frame 5 fixed on the L-shaped plate 4, a winding reel 6 rotatably disposed inside the U-shaped frame 5, a drive motor 15 fixed on one side of the outer wall of the U-shaped frame 5, and the output end rod of the drive motor 15 connected to the winding reel 6. A guide pipe 16 is connected to one side of the water spray pipe 13, and the guide pipe 16 is connected to an external water pipe. The design of the U-shaped frame 5 ensures that the winding reel 6 is rotatably disposed inside it. The drive motor 15 drives the winding reel 6 to rotate, which drives the pull rope 7, pull rod 8, and hook 9 to move the simulated trolley. The external water source first enters the guide pipe 16, then the water is evenly discharged into the water spray pipe 13, and finally evenly sprayed onto the test road surface 2 from the water spray head 14.

[0026] See Figure 2 and Figure 4 The inner surface of each side baffle 10 is provided with a transverse sliding groove 17. A secondary transverse sliding groove 18 is provided at the bottom and top of each transverse sliding groove 17. Both ends of the pull rod 8 extend into the corresponding transverse sliding groove 17. Mounting seats 19 are provided on the top and bottom surfaces of the extended ends of the pull rod 8. Rollers 20 are mounted on the mounting seats 19 and are rolled within the corresponding secondary transverse sliding grooves 18. During the pulling process, both ends of the pull rod 8 slide within the transverse sliding grooves 17, while the rollers 20 roll within the secondary transverse sliding grooves 18. The rollers 20 not only support the pull rod 8 but also ensure that pulling the pull rod 8 is less strenuous, thereby reducing the friction between the pull rod 8 and the side baffle 10 and improving the final detection effect.

[0027] See Figure 1 and Figure 3A support platform 21 is provided below the base plate 1. Each end of one side of the support platform 21 is hinged to a cylinder 22. The telescopic rod of the cylinder 22 is hinged to the bottom of the base plate 1 via the hinged components. A rotating component is provided between the other side of the base plate 1 and the support platform 21. The rotating component includes a support plate 23 fixed to the top of the support platform 21. A cylinder 24 is fixed to the top of the support plate 23. Two triangular plates 25 are fixed to one end of the base plate 1, and a cylindrical rod 26 is fixed between the triangular plates 25. The cylinder 24... 4. The rod 26 is slidably sleeved on the outer surface of the round rod 26. A through plate 27 is fixed on the base plate 1. The through plate 27 has an opening for the pull rope 7 to pass through. The cylinder 22 drives the base plate 1 to tilt upwards. The rotating part is the turning point of the tilting. When the base plate 1 tilts upwards, the designed round rod 26 rotates inside the cylinder 24. Finally, the base plate 1 tilts upwards in one direction, thereby simulating the slope of the inclined road surface. This enhances the versatility of the detection device and improves the simulation effect. Therefore, the detection device can be used in more diverse detection scenarios.

[0028] In practice, the trolley is placed at the starting point of the simulated road surface. Then, the drive of the reel 6 drives the pull rope 7, pull rod 8, and hook 9 to move the simulated trolley. During the movement of the trolley, the data measured by the infrared 11 set in the side baffle 10 can calculate the relationship between the speed of the test vehicle and time. At the same time, the tension sensor can detect the tension of the pull rope on the trolley in real time. The tension of the tension sensor and the speed of the test vehicle are displayed in real time on the computer interface. By increasing the external load of the test vehicle and conducting multiple tests, the rolling friction between the simulated wheel and the simulated road surface is finally calculated through comprehensive calculation. Before the test, external water is sprayed evenly from the water spray pipe 13 onto the test road surface 2. This makes the test road surface 2 more similar to the anti-slip properties of a rainy road surface, resulting in a better simulation effect. Therefore, the detection effect of the detection device can be more accurate. The power of the drive motor 15 remains constant.

[0029] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for detecting the skid resistance of a road surface, characterized by: The utility model provides a test road surface (2) is provided with test car (3) on the bottom plate (1) top end, one side of bottom plate (1) is fixed with the winding assembly through support, winding assembly includes winding wheel (6), winding wheel (6) is wound with pull rope (7) on, the other end of pull rope (7) is provided with the horizontal pull rod (8), pull rod (8) is fixed with the hook (9) on, the hook (9) is hung in test car (3) tail end, and test car (3) and hook (9) connecting part are provided with tension sensor, both sides of bottom plate (1) are fixed with the side baffle (10), one of side baffle (10) inner side is fixed with infrared (11), bottom plate (1) is fixed with mounting bracket (12), the top of mounting bracket (12) is provided with the water jet pipe (13), the bottom end of water jet pipe (13) is evenly provided with the water jet head (14).

2. The road pavement anti-skid performance detection device according to claim 1, characterized in that: The support includes an L-shaped plate (4) fixed to one side of the bottom plate (1), and a U-shaped bracket (5) fixed to the L-shaped plate (4), wherein the winding wheel (6) is rotatably arranged in the inner side of the U-shaped bracket (5).

3. The device for detecting the skid resistance of a road surface according to claim 2, characterized in that: One side of the U-shaped bracket (5) is fixedly provided with a driving motor (15), and the output rod of the driving motor (15) is connected with the winding wheel (6). One side of the water jet pipe (13) is jointly connected with a guide pipe (16), and the guide pipe (16) is connected with an external water pipe.

4. The device for detecting the anti-skid performance of a road surface according to claim 3, characterized in that: The inner side of the side baffle (10) is provided with a horizontal sliding groove (17), and the inner bottom end of the horizontal sliding groove (17) and the inner top end of the horizontal sliding groove (17) are provided with a secondary horizontal sliding groove (18). The two ends of the pull rod (8) extend into the corresponding horizontal sliding grooves (17).

5. The device for detecting the skid resistance of a road surface according to claim 4, characterized in that: The top surface and the bottom surface of the extension end of the pull rod (8) are provided with mounting seats (19), and the mounting seats (19) are provided with rollers (20) which are rotatably arranged in the corresponding secondary horizontal sliding grooves (18).

6. The device for detecting the skid resistance of a road surface according to claim 5, characterized in that: A supporting table (21) is arranged below the bottom plate (1), and the supporting table (21) is connected with a gas cylinder (22) through a hinge component at both ends of one side of the supporting table (21). The telescopic rod of the gas cylinder (22) is connected with the bottom plate (1) through a hinge component at the bottom of the bottom plate (1), and a rotating member is arranged between the other side of the bottom plate (1) and the supporting table (21).

7. The device for detecting the skid resistance of a road surface according to claim 6, characterized in that: The rotating member includes a supporting plate (23) fixed to the top end of the supporting table (21), a cylinder (24) fixed to the top end of the supporting plate (23), two triangular plates (25) fixed to one end of the bottom plate (1), a round rod (26) fixed between the two triangular plates (25), and the cylinder (24) is slidably sleeved on the outer surface of the round rod (26).

8. The device for detecting the skid resistance of a road surface according to claim 7, characterized in that: A through plate (27) is fixed to the bottom plate (1), and the through plate (27) is provided with a through hole for the pull rope (7) to pass through.

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