A roadbed flatness rapid detection device

Abstract

The utility model relates to the technical field of roadbed detection equipment, and in particular to a roadbed flatness rapid detection device, comprising a detection support frame; a drive assembly, the drive assembly is arranged on the detection support frame, and a guide assembly is installed between the detection support frame and the drive assembly; a detection wheel assembly, the detection wheel assembly is installed on the drive assembly, and an electromagnetic coupling assembly is installed on the detection wheel assembly. The utility model is conducive to rapid detection of roadbed flatness and improves detection accuracy.

Description

Technical Field

[0001] The utility model relates to the technical field of roadbed detection equipment, in particular to a roadbed flatness rapid detection device. Background Art

[0002] Roadbed flatness is one of the important indicators to measure the quality of road construction and performance. Roadbed flatness refers to the flatness of the road surface, that is, the unevenness of the road surface. Flatness not only affects driving comfort and safety, but also affects the service life of the road.

[0003] A flat roadbed can reduce the bumps and shakes of vehicles during driving, reduce the risk of vehicle loss of control due to uneven road surface, and improve driving stability. At present, the roadbed flatness detection methods mainly include the three-meter ruler method, the continuous flatness method, the vehicle-mounted bump accumulation method, and the laser section method. For example, the prior application with publication number CN221297525U discloses a roadbed and pavement flatness measurement device, which determines the roadbed flatness by measuring the angular rotation amount of the detection wheel. However, the inclined detection wheel has a large contact area with the roadbed, and has a low sensitivity to local or protrusions, resulting in the inability of the angle change to accurately reflect the actual unevenness, resulting in low roadbed detection accuracy.

[0004] Therefore, those skilled in the art are committed to developing a device for quickly detecting the flatness of a roadbed, which is conducive to quickly detecting the flatness of the roadbed and improving the detection accuracy. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a roadbed flatness rapid detection device, which is conducive to rapid detection of roadbed flatness and improves detection accuracy.

[0006] The utility model solves the above-mentioned technical problems with the following technical solutions: a roadbed flatness rapid detection device, comprising:

[0007] Detection support frame;

[0008] A driving assembly, wherein the driving assembly is arranged on the detection support frame, and a guiding assembly is installed between the detection support frame and the driving assembly;

[0009] A detection wheel assembly is installed on the driving assembly, and an electromagnetic coupling assembly is installed on the detection wheel assembly.

[0010] The beneficial effects of adopting the above scheme are: by detecting the support frame, the driving assembly, the guide assembly and the detection wheel assembly, and installing the electromagnetic coupling assembly on the detection wheel assembly, the roadbed flatness can be detected more accurately, and the electromagnetic coupling assembly can sense the change in the up and down jumping amplitude of the detection wheel assembly in real time, and convert the jumping signal into an electrical signal, so as to more sensitively reflect the concave and convex conditions of the roadbed surface, solve the problem of large contact area between the detection wheel and the roadbed and low sensitivity to local or convex in the prior art, and improve the detection accuracy;

[0011] The drive assembly and guide assembly enable the detection wheel assembly to move quickly, thereby realizing rapid detection of the roadbed flatness. The drive assembly can control the moving speed and direction of the detection wheel assembly, and the guide assembly ensures that the detection wheel assembly remains stable during movement, thereby improving detection efficiency.

[0012] On the basis of the above technical solution, the present invention can also be improved as follows.

[0013] Further, the detection wheel assembly comprises a detection wheel, the detection wheel is mounted on a mounting frame, the mounting frame has a mounting plate, and a sliding rod and a guide rod are mounted on the mounting plate;

[0014] The driving assembly comprises a horizontal plate, a guide hole is provided on the horizontal plate, the sliding rod is inserted into the guide hole, and a limiting bolt is installed on the end of the sliding rod, a guide sleeve is installed on the lower side of the horizontal plate, the end of the guide rod is inserted into the guide sleeve, and a compression spring is provided on the guide sleeve and the outer sleeve of the guide rod, and the two ends of the compression spring are respectively abutted against the horizontal plate and the mounting plate.

[0015] The beneficial effect of adopting the above further scheme is that when the detection wheel rolls on the roadbed for detection, the mounting plate jumps up and down as the unevenness of the roadbed changes, and the sliding rod, guide rod and compression spring cooperate so that the outer surface of the detection wheel is always in contact with the roadbed surface, thereby improving the accuracy of roadbed flatness detection.

[0016] Furthermore, the electromagnetic coupling component includes a transmission rod, which is connected to the mounting plate and extends to the upper side of the horizontal plate. A first coil is installed on the transmission rod, and a second coil concentrically matched with the first coil is installed on the horizontal plate. The first coil and the second coil are both electrically connected to the control component.

[0017] The beneficial effect of adopting the above-mentioned further scheme is that the up and down jumping of the detection wheel drives the transmission rod to jump up and down, so that the overlapping area of ​​the first coil and the second coil changes continuously. When the overlapping area of ​​the two coaxial coils increases, the mutual inductance coefficient will increase significantly, resulting in an increase in the induced voltage or current in the first or second coil. The control component calculates the flatness of the roadbed surface based on the change in the induced voltage or induced current.

[0018] Furthermore, the detection support frame includes a detection plate, the detection plate has a detection cavity, the drive assembly and the guide assembly are located in the detection cavity, and the detection plate is also equipped with supporting feet.

[0019] The beneficial effects of adopting the above further solution are: the drive assembly and the guide assembly are accommodated in the detection cavity, which effectively protects these components from the influence of the external environment, prolongs the service life of the device, and adjusts the support feet so that the detection support frame is set horizontally.

[0020] Furthermore, the driving assembly also includes a driving box, the horizontal plate is fixedly connected to the driving box, a double-headed driving motor is installed in the driving box, the output end of the double-headed driving motor extends out of the driving box and is connected to a driving gear, and a rack that cooperates with the driving gear is also installed on the detection support frame, and the rack is arranged along the length direction of the detection support frame.

[0021] The beneficial effect of adopting the above further solution is that the double-headed driving motor and the driving gear can realize smooth and efficient driving of the detection wheel assembly, thereby improving the detection speed and efficiency of the device.

[0022] Furthermore, the guide assembly includes a guide rod installed on the detection support frame, the guide rod is arranged along the length direction of the detection support frame, the drive box is provided with a guide hole that cooperates with the guide rod, and a linear bearing is installed between the guide hole and the guide rod.

[0023] The beneficial effect of adopting the above further scheme is: through the guide rod and the guide hole, and installing a linear bearing between the guide hole and the guide rod, the friction and wear of the guide component during movement can be effectively reduced, while the movement accuracy of the drive box is improved and the service life of the device is extended.

[0024] Furthermore, a support shaft is installed on the side wall of the driving box, a rolling wheel is installed on the end of the support shaft, and the outer surface of the rolling wheel abuts against the upper surface of the detection support frame.

[0025] The beneficial effect of adopting the above further solution is that the outer surface of the rolling wheel abuts against the upper surface of the detection support frame, thereby reducing the friction force when the drive box moves and improving the movement accuracy of the drive box.

[0026] Furthermore, a level is installed on the detection support frame.

[0027] The beneficial effect of adopting the above further solution is that by installing a level meter, the horizontal state of the detection support frame can be monitored in real time to ensure that the device remains horizontal during the detection process, thereby improving the detection accuracy.

[0028] Furthermore, the control component is installed in the drive box, and a battery component and a wireless communication module are installed in the drive box. The battery component and the wireless communication module are both electrically connected to the control component.

[0029] The beneficial effect of adopting the above further solution is that by installing the control component, the battery component and the wireless communication module in the drive box, intelligent control and remote monitoring of the device can be achieved, thereby improving the intelligence level of the device.

[0030] Furthermore, a laser displacement sensor is installed at the bottom of the drive box, and the laser displacement sensor is electrically connected to the control component.

[0031] The beneficial effect of adopting the above further solution is that by installing a laser displacement sensor, the displacement of the detection wheel assembly can be monitored in real time and compared with the flatness calculated by the electromagnetic coupling assembly, thereby improving the accuracy of road surface flatness detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the structure of the device for rapid detection of roadbed flatness in the utility model;

[0033] Figure 2 This is a schematic diagram of the structure of the drive assembly and the detection wheel assembly in the utility model;

[0034] Figure 3 This is a schematic diagram of the structure of the detection wheel assembly in the utility model;

[0035] Figure 4 It is a schematic diagram of the cross-sectional plan structure of the drive box in the utility model.

[0036] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0037] 1. Detection support frame; 2. Drive assembly; 3. Guide assembly; 4. Detection wheel assembly; 5. Electromagnetic coupling assembly; 6. Detection wheel; 7. Mounting frame; 8. Mounting plate; 9. Sliding rod; 10. Guide rod; 11. Horizontal plate; 12. Limit bolt; 13. Guide sleeve; 14. Compression spring; 15. Transmission rod; 16. Second coil; 17. Control assembly; 18. Detection plate; 19. Detection cavity; 20. Support foot; 21. Drive box; 22. Double-headed drive motor; 23. Drive gear; 24. Rack; 25. Guide rod; 26. Guide hole; 27. Rolling wheel; 28. Level; 29. ​​Wireless communication module; 30. Battery assembly; 31. Laser displacement sensor. DETAILED DESCRIPTION

[0038] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0039] In the description of the present invention, it should be understood that the terms "center", "length", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "inside", "outside", "peripheral", "circumferential" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred system or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0040] In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0041] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a roadbed flatness rapid detection device comprises:

[0043] Detection support frame 1;

[0044] A driving assembly 2, wherein the driving assembly 2 is arranged on the detection support frame 1, and a guiding assembly 3 is installed between the detection support frame 1 and the driving assembly 2;

[0045] The detection wheel assembly 4 is mounted on the driving assembly 2 , and an electromagnetic coupling assembly 5 is mounted on the detection wheel assembly 4 .

[0046] In the utility model, by detecting the support frame 1, the driving component 2, the guide component 3 and the detection wheel component 4, and installing the electromagnetic coupling component 5 on the detection wheel component 4, the flatness of the roadbed can be detected more accurately. The electromagnetic coupling component 5 can sense the change in the up and down jumping amplitude of the detection wheel component 4 in real time, and convert the jumping signal into an electrical signal, so as to more sensitively reflect the unevenness of the roadbed surface, solve the problem of large contact area between the detection wheel and the roadbed and low sensitivity to local or convex parts in the prior art, and improve the detection accuracy.

[0047] like Figure 1 , Figure 2 and Figure 3 As shown, in some embodiments, the detection wheel assembly 4 includes a detection wheel 6. In order to improve the detection accuracy, the detection wheel 6 is a metal wheel. The detection wheel 6 is installed on a mounting frame 7. The mounting frame 7 has a mounting plate 8, and the mounting plate 8 is horizontally arranged. A sliding rod 9 and a guide rod 10 are installed on the mounting plate 8.

[0048] The driving assembly 2 has a horizontal plate 11, which is provided with a guide hole. The sliding rod 9 is inserted into the guide hole, and a limiting bolt 12 is installed at the end of the sliding rod 9. A guide sleeve 13 is installed on the lower side of the horizontal plate 11, and the end of the guide rod 10 is inserted into the guide sleeve 13. A compression spring 14 is provided on the outer sleeve of the guide sleeve 13 and the guide rod 10, and the two ends of the compression spring 14 are respectively abutted against the horizontal plate 11 and the mounting plate 8.

[0049] When the detection wheel 6 rolls on the roadbed for detection, the mounting plate 8 jumps up and down as the unevenness of the roadbed changes. The sliding rod 9, guide rod 10 and compression spring 14 cooperate to ensure that the outer surface of the detection wheel 6 is always in contact with the roadbed surface, thereby improving the accuracy of roadbed flatness detection.

[0050] The electromagnetic coupling component 5 includes a transmission rod 15, which is connected to the mounting plate 8 and extends to the upper side of the horizontal plate 11. A guide sleeve or a linear bearing is installed between the transmission rod 15 and the mounting plate 8. A first coil is installed on the transmission rod 15, and a second coil 16 concentrically matched with the first coil is installed on the horizontal plate 11. The first coil and the second coil 16 are gap matched. The first coil and the second coil 16 are both AC coils and are electrically connected to the control component 17.

[0051] The up and down jumping of the detection wheel 6 drives the transmission rod 15 to jump up and down, causing the first coil to jump up and down. The area of ​​the first coil 16 that overlaps with the second coil 16 changes continuously. When the overlapping area of ​​the two coaxial coils increases, the mutual inductance coefficient will increase significantly, resulting in an increase in the induced voltage or current in the first coil or the second coil 16. The control component 17 calculates the flatness of the roadbed surface based on the change in the induced voltage or induced current.

[0052] The detection support frame 1 includes a detection plate 18, and the detection plate 18 has a detection cavity 19. The detection cavity 19 is arranged along the length direction of the detection plate 18. The driving assembly 2 and the guide assembly 3 are located in the detection cavity 19. A support foot 20 is also installed on the detection plate 18. The support foot 20 includes a base plate and an adjusting bolt installed on the base plate. The height of the base plate is adjusted by rotating the adjusting bolt so that the detection support frame 1 remains horizontal. In order to facilitate the detection of whether the support foot 20 is adjusted to a suitable position, a level meter 28 is also installed on the detection support frame 1.

[0053] like Figure 1 , Figure 2 and Figure 3 As shown, in some embodiments, the driving component 2 also includes a driving box 21, the horizontal plate 11 is fixedly connected to the driving box 21, a double-headed driving motor 22 is installed in the driving box 21, the output end of the double-headed driving motor 22 extends out of the driving box 21 and is connected to a driving gear 23, and a rack 24 that cooperates with the driving gear 23 is also installed on the detection support frame 1, and the rack 24 is arranged along the length direction of the detection support frame 1. The control component 17 controls the output power of the double-headed driving motor 22 to control the rotation speed of the driving gear 23, and then controls the moving speed of the driving box 21 on the guide component 3. The detection wheel assembly 4 is driven smoothly and efficiently, thereby improving the detection speed and efficiency of the device.

[0054] The guide assembly 3 includes a guide rod 25 installed on the detection support frame 1. In the present embodiment, two parallel guide rods 25 are provided. The guide rod 25 can adopt an optical axis. The guide rod 25 is arranged along the length direction of the detection support frame 1. A guide hole 26 cooperating with the guide rod 25 is provided on the drive box 21. A linear bearing is installed between the guide hole 26 and the guide rod 25. The linear bearing can effectively reduce the friction and wear of the drive box 21 during the movement of the guide rod 25, while improving the movement accuracy of the drive box 21 and extending the service life of the device.

[0055] like Figure 1 , Figure 2 As shown, in the embodiment, a support shaft is also installed on the side wall of the driving box 21, and a rolling wheel 27 is installed on the end of the supporting shaft. The rolling wheel 27 can be a rubber wheel, and the outer surface of the rolling wheel 27 abuts against the upper surface of the detection support frame 1. A laser displacement sensor 31 is also installed at the bottom of the driving box 21, and the laser displacement sensor 31 is electrically connected to the control component 17. The control component 17 is installed in the driving box 21, and a battery assembly 30 and a wireless communication module 29 are installed in the driving box 21. The battery assembly 30 and the wireless communication module 29 are both electrically connected to the control component 17. The laser displacement sensor 31 can monitor the displacement of the detection wheel assembly 4 in real time and compare it with the flatness calculated by the electromagnetic coupling assembly 5, so as to improve the detection accuracy of the road surface flatness.

[0056] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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. A roadbed flatness rapid detection device, characterized in that: include Detection support frame (1); A driving assembly (2), the driving assembly (2) being arranged on the detection support frame (1), and a guiding assembly (3) being installed between the detection support frame (1) and the driving assembly (2); A detection wheel assembly (4), wherein the detection wheel assembly (4) is mounted on the drive assembly (2), and an electromagnetic coupling assembly (5) is mounted on the detection wheel assembly (4).

2. The roadbed flatness rapid detection device according to claim 1 is characterized in that: The detection wheel assembly (4) comprises a detection wheel (6), wherein the detection wheel (6) is mounted on a mounting frame (7), wherein the mounting frame (7) has a mounting plate (8), and a sliding rod (9) and a guide rod (10) are mounted on the mounting plate (8); The driving assembly (2) comprises a horizontal plate (11), a guide hole is provided on the horizontal plate (11), the sliding rod (9) is inserted into the guide hole, and a limit bolt (12) is installed at the end of the sliding rod (9), a guide sleeve (13) is installed on the lower side of the horizontal plate (11), the end of the guide rod (10) is inserted into the guide sleeve (13), and a compression spring (14) is provided on the outer sleeve of the guide sleeve (13) and the guide rod (10), and the two ends of the compression spring (14) are respectively in contact with the horizontal plate (11) and the mounting plate (8).

3. The roadbed flatness rapid detection device according to claim 2 is characterized in that: The electromagnetic coupling component (5) comprises a transmission rod (15), the transmission rod (15) being connected to the mounting plate (8) and extending to the upper side of the horizontal plate (11), a first coil being mounted on the transmission rod (15), a second coil (16) being mounted on the horizontal plate (11) and coaxially matched with the first coil, and the first coil and the second coil (16) being electrically connected to a control component (17).

4. The roadbed flatness rapid detection device according to claim 1 is characterized in that: The detection support frame (1) comprises a detection plate (18), the detection plate (18) having a detection cavity (19), the drive assembly (2) and the guide assembly (3) being located in the detection cavity (19), and a support foot (20) being further mounted on the detection plate (18).

5. The roadbed flatness rapid detection device according to claim 3 is characterized in that: The driving assembly (2) further comprises a driving box (21), the horizontal plate (11) being fixedly connected to the driving box (21), a double-headed driving motor (22) being installed in the driving box (21), an output end of the double-headed driving motor (22) extending out of the driving box (21) and being connected to a driving gear (23), and a rack (24) cooperating with the driving gear (23) being installed on the detection support frame (1), the rack (24) being arranged along the length direction of the detection support frame (1).

6. The roadbed flatness rapid detection device according to claim 5 is characterized in that: The guide assembly (3) comprises a guide rod (25) mounted on the detection support frame (1), the guide rod (25) being arranged along the length direction of the detection support frame (1), the drive box (21) being provided with a guide hole (26) cooperating with the guide rod (25), and a linear bearing being installed between the guide hole (26) and the guide rod (25).

7. The roadbed flatness rapid detection device according to claim 5 is characterized in that: A support shaft is also mounted on the side wall of the driving box (21), a rolling wheel (27) is mounted on the end of the support shaft, and the outer surface of the rolling wheel (27) abuts against the upper surface of the detection support frame (1).

8. The roadbed flatness rapid detection device according to claim 1 is characterized in that: A level meter (28) is also installed on the detection support frame (1).

9. The roadbed flatness rapid detection device according to claim 5, characterized in that: The control component (17) is installed in the drive box (21), and a battery component (30) and a wireless communication module (29) are installed in the drive box (21), and the battery component (30) and the wireless communication module (29) are both electrically connected to the control component (17).

10. The roadbed flatness rapid detection device according to claim 5, characterized in that: A laser displacement sensor (31) is also installed at the bottom of the drive box (21), and the laser displacement sensor (31) is electrically connected to the control component (17).

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