Self-adaptive pavement flatness detection device

Abstract

The utility model relates to the technical field of road surface detection, and discloses a self-adaptive road surface flatness detection device, which comprises a chassis, driving wheels are mounted on two sides of the bottom of the chassis, a sweeping assembly is mounted on the front side of the chassis, a detection assembly is mounted in the middle of the chassis, and a drawing assembly is mounted at the top of the detection assembly. The sweeping assembly comprises an overturning frame and two second bevel gears, the outer wall of the overturning frame is rotationally connected to the front side of the chassis, a plurality of rotating rollers are rotationally connected to the inner side of the overturning frame, and sweeping belts are arranged on the outer sides of the multiple rotating rollers on the left side and the right side in a sleeving mode correspondingly; and one ends of the two rotating rollers in the middle penetrate through the overturning frame and are fixedly connected with first bevel gears. According to the road surface cleaning device, the cleaning assembly is arranged, so that efficient cleaning of road surface gravel and sandy soil is achieved, obstacles are cleaned to the two sides of the device through the double cleaning belts rotating in the opposite directions, the gravel is prevented from making direct contact with the driving wheels, and high precision and stability of the detection result are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of road surface detection, in particular to an adaptive road surface flatness detection device. Background Art

[0002] The road surface flatness detection device is a special device used to detect the flatness of the road surface, which is widely used in the fields of highway construction, maintenance and acceptance. The device is usually composed of a chassis, a supporting structure, a detection wheel, a sensor, and a data acquisition and processing system. It analyzes and outputs the road surface flatness information by detecting the vertical displacement of the wheel when it runs along the road surface and combining the data collected by the sensor. The device has the advantages of high precision, high efficiency and easy operation, which can significantly improve the quality and efficiency of road surface detection work. It is an indispensable and important tool in the process of highway construction and maintenance.

[0003] However, the existing road surface flatness detection device is easily disturbed by debris such as gravel or stones on the road surface during operation. These debris may touch the wheels of the detection device during the detection process, causing the displacement signal of the detection wheel to be abnormal, thereby affecting the accuracy of the detection result. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides an adaptive road surface flatness detection device, which aims to improve the problem that the device in the prior art is easily disturbed by debris such as gravel or stones on the road surface during operation.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An adaptive road surface flatness detection device comprises a chassis, driving wheels are installed on both sides of the bottom of the chassis, a cleaning component is installed on the front side of the chassis, a detection component is installed in the middle of the chassis, and a drawing component is installed on the top of the detection component;

[0007] The cleaning assembly includes a flip frame and two second bevel gears, the outer wall of the flip frame is rotatably connected to the front side of the chassis, the inner side of the flip frame is rotatably connected to a plurality of rollers, the outer sides of the plurality of rollers on the left and right sides are respectively provided with cleaning belts, one end of the two middle rollers passes through the flip frame and is fixedly connected to the first bevel gear, the middle parts of the two second bevel gears are fixedly connected to the middle part of the driving wheel close to the flip frame, and the first bevel gear and the second bevel gear are meshed.

[0008] As a further description of the above technical solution:

[0009] The detection assembly includes multiple fixed seats and dust covers, the outer side of the fixed seat is fixedly connected to the middle of the chassis, and the multiple fixed seats are distributed in a straight line, one side of the top of the fixed seat is fixedly connected to a mounting platform, the top of the mounting platform is fixedly connected to a laser displacement sensor, the middle of the fixed seat is slidably connected to a detection wheel, the top of the detection wheel is fixedly connected to a spring damper, the top of the detection wheel side wall is fixedly connected to a reflector, the dust cover is fixedly connected to the top center of the chassis, and the top of the spring damper is fixedly connected to the inner top wall of the dust cover.

[0010] As a further description of the above technical solution:

[0011] The drawing component includes a release wheel, a winding wheel, a shell and a drawing rod, the bottom end of the release wheel is rotatably connected to one side of the top of the chassis, the bottom end of the winding wheel is rotatably connected to the other side of the top of the chassis, a driving component is installed at the bottom end of the winding wheel, the bottom of the shell is fixedly connected to the top of the dust cover, both sides of the shell are provided with opening structures, the inner wall of the shell is fixedly connected to a fixing plate, both sides of the fixing plate are rotatably connected to pressure rollers, the bottom end of the drawing rod is fixedly connected to one of the side walls of the detection wheel, and the top end of the drawing rod passes through the dust cover and is fixedly connected to a marker pen.

[0012] As a further description of the above technical solution:

[0013] The driving assembly includes a worm wheel and a worm, the middle part of the worm wheel is fixedly connected to the bottom end of the winding wheel, the middle part of the worm is fixedly connected to the middle part of the driving wheel away from the turning frame, and the worm and the worm wheel are meshed.

[0014] As a further description of the above technical solution:

[0015] A bottom shell is fixedly connected to one side of the bottom of the chassis, and the worm and the worm wheel are both sleeved inside the bottom shell.

[0016] As a further description of the above technical solution:

[0017] A dustproof shell is fixedly connected to the other side of the bottom of the chassis, one side of the dustproof shell is an open structure, and the first bevel gear and the second bevel gear are both located inside the dustproof shell.

[0018] As a further description of the above technical solution:

[0019] A lock buckle is fixedly connected to the top edge of the chassis, and a lock buckle is fixedly connected to the top edge of the flip frame. A latch is inserted between the two lock buckles.

[0020] As a further description of the above technical solution:

[0021] A tool box is fixedly connected to the left side of the top of the chassis, and a battery is fixedly connected to the right side of the top of the chassis.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, by setting up a cleaning component, the efficient cleaning of gravel and sand on the road surface is achieved. The obstacles are cleaned to both sides of the device by using the double cleaning belts rotating in opposite directions, so as to avoid the gravel directly contacting the driving wheel and effectively reduce the bumping phenomenon during the operation of the device. At the same time, the detection component adopts a structure in which the spring damper and the detection wheel are linked to ensure the stability of the detection wheel on complex roads. The laser displacement sensor accurately captures the displacement change of the detection wheel and converts it into flatness data to ensure the high accuracy and stability of the detection results;

[0024] 2. In the utility model, the detection data of the road surface flatness is converted into a curve graph on the paper tape in real time by linking the detection wheel with the drawing rod and the marking pen. With the release wheel, the winding wheel and the worm-worm gear drive mechanism, the paper tape is stably retracted and released, and the curve drawing is continuous and smooth, which significantly improves the intuitiveness and automation of data recording, facilitates the staff to quickly evaluate the road surface flatness condition, and greatly improves the efficiency of detection and analysis work. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A stereoscopic diagram of a first viewing angle of an adaptive road surface flatness detection device proposed by the utility model;

[0026] Figure 2 A stereogram of a second viewing angle of an adaptive road surface flatness detection device proposed by the utility model;

[0027] Figure 3 This is a schematic diagram of the structure of a cleaning component of an adaptive road surface flatness detection device proposed by the utility model;

[0028] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0029] Figure 5 A schematic diagram of a worm gear structure of an adaptive road surface flatness detection device proposed by the utility model;

[0030] Figure 6 for Figure 5 Enlarged view of point B in the middle;

[0031] Figure 7 This is a schematic diagram of the structure of a drawing component of an adaptive road surface flatness detection device proposed by the utility model.

[0032] Legend:

[0033] 1. Chassis; 2. Driving wheel; 3. Turning frame; 4. Roller; 5. Cleaning belt; 6. First bevel gear; 7. Second bevel gear; 8. Fixed seat; 9. Mounting table; 10. Laser displacement sensor; 11. Detection wheel; 12. Spring damper; 13. Reflection plate; 14. Dust cover; 15. Tool box; 16. Battery; 17. Lock; 18. Latch; 19. Release wheel; 20. Winding wheel; 21. Worm gear; 22. Worm; 23. Bottom shell; 24. Outer shell; 25. Fixed plate; 26. Pressure roller; 27. Drawing rod; 28. Marker pen; 29. ​​Dust cover. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] Reference Figure 1 and Figure 2 The utility model provides an embodiment: an adaptive road surface flatness detection device, comprising a chassis 1, driving wheels 2 are installed on both sides of the bottom of the chassis 1, a cleaning component is provided on the front side of the chassis 1, a detection component is provided in the middle, and a drawing component is installed on the top. The overall structure of the device is compact, and the modules work together to achieve road surface cleaning, flatness detection, and recording and drawing of detection results.

[0036] Reference Figure 1-Figure 4 The cleaning assembly includes a flip frame 3 and two second bevel gears 7. The outer wall of the flip frame 3 is rotatably connected to the front side of the chassis 1, and a plurality of rollers 4 are installed on the inner side thereof. The outer sides of the plurality of rollers 4 on the left and right sides are respectively provided with cleaning belts 5. One end of the two middle rollers 4 passes through the flip frame 3 and is fixedly connected to the first bevel gear 6. The two second bevel gears 7 are respectively fixedly connected to the middle of the driving wheels 2 on both sides and mesh with the first bevel gear 6. During the operation of the device, the driving wheel 2 rolls in contact with the road surface, driving the external second bevel gear 7 to rotate, and the first bevel gear 6 rotates synchronously through the gear meshing transmission, thereby driving the roller 4 and the cleaning belt 5 thereon to rotate in the opposite direction. The two cleaning belts 5 move in opposite directions, sweeping the gravel and sand on the road surface to both sides of the device, effectively preventing the gravel from interfering with the operation of the driving wheel 2, ensuring the smooth operation of the device and improving the accuracy of the detection results.

[0037] Reference Figure 5 and Figure 7The detection assembly includes a plurality of fixed seats 8 and a dust cover 14. The fixed seats 8 are linearly distributed and installed in the middle of the chassis 1. A mounting platform 9 is provided on the top of each fixed seat 8, and a laser displacement sensor 10 is fixedly installed on the mounting platform 9. A detection wheel 11 is slidably connected to the middle of the fixed seat 8. The top of the detection wheel 11 is fixedly connected to the inner wall of the dust cover 14 through a spring damper 12, and a reflector 13 is fixedly installed on the top of its side wall. The detection assembly senses the flatness of the road surface through the detection wheel 11. When the road surface is uneven, the detection wheel 11 moves up and down accordingly. The spring damper 12 ensures the smooth operation of the detection wheel 11 through the elastic shock absorption function. The movement of the detection wheel 11 will drive the reflector 13 to move up and down. The laser displacement sensor 10 on the top of the mounting platform 9 measures the distance change between the reflector 13 and the sensor in real time and transmits the data to the controller. The controller analyzes and processes the received signal, generates a corresponding digital signal, and thus realizes accurate detection of the flatness of the road surface.

[0038] Reference Figure 5 and Figure 7 , the drawing assembly includes a release wheel 19, a winding wheel 20, a shell 24 and a drawing rod 27. The release wheel 19 and the winding wheel 20 are respectively installed on both sides of the top of the chassis 1, wherein the winding wheel 20 is driven to rotate by the driving assembly. The shell 24 is fixedly installed on the top of the dust cover 14, and an opening structure is provided on both sides thereof. A fixing plate 25 is fixedly installed on the inner wall, and the two sides of the fixing plate 25 are respectively connected to the pressure rollers 26. One end of the drawing rod 27 is fixedly connected to the side wall of the detection wheel 11, and the other end passes through the dust cover 14 and is connected to the marking pen 28. During the road surface detection process, the up and down movement of the detection wheel 11 drives the drawing rod 27 and the marking pen 28 to move up and down synchronously, and the marking pen 28 draws a curve reflecting the flatness of the road surface on the released paper tape. At the same time, the driving assembly drives the winding wheel 20 to rotate through the meshing structure of the worm 22 and the worm wheel 21, and the winding wheel 20 steadily rewinds the paper tape passing through the shell 24 to ensure that the drawing process is continuous and smooth. The large radius design of the worm wheel 21 reduces the driving frequency, thereby ensuring the accuracy of curve drawing.

[0039] Reference Figure 5 The driving assembly includes a worm wheel 21 and a worm 22. The middle of the worm wheel 21 is fixedly connected to the bottom end of the winding wheel 20, and the worm 22 is fixedly connected to the middle of the driving wheel 2 away from the turning frame 3. After the worm 22 is engaged with the worm wheel 21, the high-speed rotation of the worm 22 drives the worm wheel 21 to rotate steadily at a low speed, providing high-precision transmission for the winding of the paper tape.

[0040] Reference Figure 2 , Figure 3 and Figure 5A bottom shell 23 is fixedly installed on one side of the bottom of the chassis 1 to protect the worm 22 and the worm wheel 21 from dust and gravel. A dust cover 29 is fixedly installed on the other side, and its side is an open structure, with a first bevel gear 6 and a second bevel gear 7 built in, to prevent foreign debris from entering the gear system and extend the service life of the device.

[0041] Reference Figure 1 The top edge of the chassis 1 and the top edge of the flip frame 3 are both fixedly mounted with a lock buckle 17, which are connected by a latch 18. When the cleaning assembly is not in use, the latch 18 can be pulled out from the lock buckle 17, and the flip frame 3 can be flipped upward, so that the cleaning assembly can be flipped to the top of the chassis 1, thereby reducing the storage space occupied by the cleaning assembly on the transport vehicle. At the same time, when the road surface does not need to be cleaned, the cleaning assembly can also be folded up to avoid the cleaning belt 5 from being worn and damaged due to long-term use.

[0042] Reference Figure 1 The left side of the top of the chassis 1 is fixedly connected to a tool box 15 for storing tools and maintenance equipment required for testing. The right side of the top is fixedly connected to a battery 16 to provide stable power support for the testing components, ensuring that the device can operate independently without external power supply.

[0043] Working principle: When using this device to measure the road surface, the device is connected to the vehicle by using a traction tool. Then the vehicle starts to pull the device to detect the flatness of the road surface. During the process, when the road surface is uneven, 11 moves up and down, and the stability of 11 is ensured by 12 installed on its top. As 11 moves up and down, it will drive 13 on the top to move up and down. At this time, the distance measured by 10 on the top of 9 will change. By transmitting the measurement results to the controller, the measured electrical signal is converted into a digital signal to detect the flatness of the road surface. During the process, as the device moves, 2 will also rotate on the road surface, and the rotation of 2 drives the two 7 outside it to rotate synchronously. The rotation of 7 will drive the 6 engaged with it to rotate. During the process, 6 will drive two of the 4 to rotate, and then drive 5 to move. At this time, the rotation directions of the two 5 are opposite, and the stones or gravel on the road surface are cleaned to both sides of the device through the two 5 rotating in both directions. Avoid gravel or stones on the road. Touching 2 will cause the device to bump, ensuring the accuracy of the detection results.

[0044] At the same time, as the uneven road surface causes 11 to move up and down, 11 will drive 27 to move up and down, so that 27 will drive 28 to move up and down. At the same time, as the rear side 2 rolls forward, it will drive the middle 22 to rotate, thereby driving 21 to rotate. During the process, due to the large radius of 21, 22 rotates several times to drive 21 to rotate once, and the rotation of 21 will drive the top 20 to rotate. The paper tape pulled from 19 will continuously pass through the inside of 24 and be rolled up on 20. With the up and down movement of 28, a curve corresponding to the road surface flatness can be drawn on the paper tape, which makes it easy for the staff to intuitively feel the situation of the road surface flatness detection.

[0045] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An adaptive road surface roughness detection device, comprising a chassis (1), characterized in that: Driving wheels (2) are installed on both sides of the bottom of the chassis (1), a cleaning component is installed on the front side of the chassis (1), a detection component is installed in the middle of the chassis (1), and a drawing component is installed on the top of the detection component; The cleaning component comprises a turning frame (3) and two second bevel gears (7); the outer wall of the turning frame (3) is rotatably connected to the front side of the chassis (1); the inner side of the turning frame (3) is rotatably connected to a plurality of rollers (4); the outer sides of the plurality of rollers (4) on the left and right sides are respectively sleeved with cleaning belts (5); one end of the two middle rollers (4) passes through the turning frame (3) and is fixedly connected to a first bevel gear (6); the middle parts of the two second bevel gears (7) are fixedly connected to the middle part of the driving wheel (2) on one side close to the turning frame (3); the first bevel gear (6) and the second bevel gear (7) are meshed with each other.

2. The adaptive road surface roughness detection device according to claim 1, characterized in that: The detection assembly comprises a plurality of fixed seats (8) and a dust cover (14); the outer side of the fixed seat (8) is fixedly connected to the middle of the chassis (1), and the plurality of fixed seats (8) are distributed in a straight line; a mounting platform (9) is fixedly connected to one side of the top of the fixed seat (8); a laser displacement sensor (10) is fixedly connected to the top of the mounting platform (9); a detection wheel (11) is slidably connected to the middle of the fixed seat (8); a spring damper (12) is fixedly connected to the top of the detection wheel (11); a reflector (13) is fixedly connected to the top of the side wall of the detection wheel (11); the dust cover (14) is fixedly connected to the center of the top of the chassis (1); and the top of the spring damper (12) is fixedly connected to the inner top wall of the dust cover (14).

3. The adaptive road surface roughness detection device according to claim 2, characterized in that: The drawing assembly comprises a release wheel (19), a winding wheel (20), a housing (24) and a drawing rod (27); the bottom end of the release wheel (19) is rotatably connected to one side of the top of the chassis (1); the bottom end of the winding wheel (20) is rotatably connected to the other side of the top of the chassis (1); a driving assembly is installed at the bottom end of the winding wheel (20); the bottom of the housing (24) is fixedly connected to the top of the dust cover (14); both sides of the housing (24) are provided with opening structures; the inner wall of the housing (24) is fixedly connected to a fixing plate (25); both sides of the fixing plate (25) are rotatably connected to pressure rollers (26); the bottom end of the drawing rod (27) is fixedly connected to one of the side walls of the detection wheel (11); the top end of the drawing rod (27) passes through the dust cover (14) and is fixedly connected to a marking pen (28).

4. The adaptive road surface roughness detection device according to claim 3, characterized in that: The driving assembly comprises a worm wheel (21) and a worm (22), wherein the middle portion of the worm wheel (21) is fixedly connected to the bottom end of the winding wheel (20), and the middle portion of the worm (22) is fixedly connected to the middle portion of the driving wheel (2) away from the turning frame (3), and the worm (22) and the worm wheel (21) are meshed.

5. The adaptive road surface flatness detection device according to claim 4, characterized in that: A bottom shell (23) is fixedly connected to one side of the bottom of the chassis (1), and the worm (22) and the worm wheel (21) are both sleeved inside the bottom shell (23).

6. The adaptive road surface flatness detection device according to claim 1, characterized in that: A dust cover (29) is fixedly connected to the other side of the bottom of the chassis (1); one side of the dust cover (29) is an open structure; the first bevel gear (6) and the second bevel gear (7) are both located inside the dust cover (29).

7. The adaptive road surface flatness detection device according to claim 1, characterized in that: A lock buckle (17) is fixedly connected to the top edge of the chassis (1), a lock buckle (17) is fixedly connected to the top edge of the flip frame (3), and a latch (18) is inserted between the two lock buckles (17).

8. The adaptive road surface flatness detection device according to claim 1, characterized in that: A tool box (15) is fixedly connected to the left side of the top of the chassis (1), and a storage battery (16) is fixedly connected to the right side of the top of the chassis (1).

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