Road engineering roadbed and pavement compactness detection device

Abstract

The invention relates to a road engineering roadbed and pavement compactness detection device, and belongs to the technical field of road infrastructure construction. The vibrating wheel is rotationally arranged on the rack, and a rotating shaft of the vibrating wheel is horizontally arranged; the engine is fixedly arranged on the rack and used for providing power for rotation of the vibrating wheel; the first eccentric assembly is arranged in the vibrating wheel and used for generating eccentric force; the first linkage assembly is arranged in the vibrating wheel and used for forming synchronous rotation between the first eccentric rod and a rotating shaft of the vibrating wheel; the compaction degree sensor is fixed on the rack and is positioned close to the center line of the vibrating wheel; an information collecting device and a displayer are fixed to the rack, the information collecting device is used for being matched with the compaction degree sensor to collect information, the displayer is used for being matched with the information collecting device to display the information, and the roadbed compaction degree detection device has the effect of fully detecting the compaction degree of a roadbed.

Description

Technical Field

[0001] The present application relates to the technical field of road infrastructure construction, and in particular to a device for detecting the compaction of a roadbed and pavement in a highway engineering project. Background Art

[0002] At present, the quality of roadbed compaction is the most important indicator in road construction standards. Only by fully compacting the roadbed and pavement can the strength and stability of the later pavement be guaranteed, thereby extending the service life of the road.

[0003] There are many general measurement methods for roadbed compaction, such as the ring knife method, pit digging and sand filling method and nuclear density meter method, all of which can accurately detect the compaction of the roadbed. By setting up a roadbed detection device, it can be detected whether the roadbed compaction of the section meets the standard, thereby avoiding the phenomenon of road collapse or cracking caused by hollow roadbed in the later stage.

[0004] The existing roadbed detection device can only detect a local point of the roadbed. Therefore, it is impossible to determine whether the compaction degree of other areas of the roadbed meets the standard, and there is a defect of limited detection range. Summary of the invention

[0005] In order to fully detect the compaction of the roadbed, the present application provides a highway engineering roadbed and pavement compaction detection device.

[0006] The present application provides a roadbed and pavement compaction detection device for highway engineering, which adopts the following technical solution: A roadbed and pavement compaction detection device for highway engineering, comprising a frame; A vibration wheel is rotatably arranged on the frame, and the rotation axis of the rotating wheel is horizontally arranged; An engine is fixedly mounted on the frame and is used to provide power for the rotation of the vibration wheel; A first eccentric assembly is arranged inside the vibration wheel, the first eccentric assembly comprises a first eccentric rod and a first eccentric block, the first eccentric block is fixed on the first eccentric rod, one end of the first eccentric rod is rotatably connected to the inner wall of the vibration wheel, and the other end is cantilevered, the first eccentric rod is arranged parallel to the rotation axis of the vibration wheel, and the first eccentric rod rotates relative to the vibration wheel; A first linkage assembly is arranged inside the vibration wheel and is used for the first eccentric rod to rotate synchronously with the rotation axis of the vibration wheel; The compaction sensor is fixed on the frame and located close to the center line of the vibration wheel; an information collection device and a display are fixed on the frame, the information collection device is used to cooperate with the compaction sensor to collect information, and the display is used to cooperate with the information collector to display information.

[0007] By adopting the above technical solution, the engine provides power for the rotation of the vibration wheel. After the rotating shaft of the vibration wheel starts to rotate, the first eccentric rod rotates synchronously through the linkage effect of the first linkage assembly. Due to the existence of the first eccentric block, as the first eccentric block rotates, the position of the first eccentric block changes, and the force applied to the ground also changes. When the first eccentric block is located above the first eccentric rod, the force applied to the ground is relatively small. When the first eccentric block is located below the first eccentric rod, the force applied to the ground is relatively large. Finally, the vibration wheel forms a pressure state with periodic changes in the exciting force on the ground. The compaction sensor can collect the exciting force data and reflect the compaction degree of the roadbed by measuring the pressure change. Compared with the traditional compaction detection method, this device transforms the result control into process control, and grasps the real-time data of the compaction through the pressure sensor, thereby realizing comprehensive detection covering the entire compaction surface. ‌ Optionally, a second eccentric assembly is arranged inside the vibration wheel, and the second eccentric assembly includes a second eccentric rod and a second eccentric block. One end of the second eccentric rod is rotatably connected to the inner wall of the vibration wheel, and the other end is cantilevered. The second eccentric block is fixed on the second eccentric rod, and the second eccentric rod rotates relative to the vibration wheel. The second eccentric assembly and the first eccentric assembly are centrally symmetrically arranged with the center of the vibration wheel as the symmetry point. A second linkage assembly for the second eccentric rod to form synchronous rotation with the rotating shaft of the vibration wheel is arranged inside the vibration wheel.

[0008] By adopting the above technical scheme, if there is only the first eccentric assembly, the change of the position of the first eccentric block causes the vibration wheel to form a pressure state of periodic changes in the exciting force on the ground, and periodic bumps, i.e., wave-like, will be seen on the roadbed. If the vibration source is always vertically downward, it will shatter the particles on the road surface and even cause cracks in the buildings near the roadbed. Therefore, it is necessary to change the direction of the vibration source, and the first eccentric assembly and the second eccentric assembly are arranged in a centrally symmetrical manner, that is, the first eccentric shaft and the second eccentric shaft are located on the same plane, and the first eccentric block and the second eccentric block are also at 180 degrees. When the first eccentric shaft and the second eccentric shaft rotate synchronously with the rotating shaft of the vibration wheel, the first eccentric block and the second eccentric block rotate synchronously in opposite directions, so that the vibration sources in opposite directions will cancel each other out, and no vertical vibration will be formed. Finally, the exciting force will swing back and forth, thereby achieving the effect of protecting the safety of surrounding buildings.

[0009] Optionally, a water tank is fixed on the frame, the vibration wheel is hollow and has a cavity in its wall thickness, and a water inlet pipe and a water outlet pipe are connected between the water tank and the cavity.

[0010] By adopting the above technical solution, the vibrating wheel compacts with its own weight. Due to its small mass, the vibration impact force and compaction depth that the vibrating wheel may generate may be relatively limited. But this also enables the roller to better adapt to the initial state of the roadbed during the first compaction, avoiding excessive impact on the soil layer that is not completely stabilized. When the water in the water tank is filled into the cavity, the mass of the vibrating wheel increases significantly, which causes the vibrating wheel to generate greater inertial force and vibration impact force during the vibration process, thereby achieving a deeper compaction effect. The larger mass also means that the vibrating wheel can transfer more energy to the roadbed when it contacts the ground, which helps to further compact the soil layer.

[0011] Optionally, the first eccentric assembly and the second eccentric assembly are both hollow inside, the first eccentric block is connected to the inside of the first eccentric rod, the second eccentric block is connected to the inside of the second eccentric rod, and the water tank is connected to the first eccentric assembly and the second eccentric assembly via a water supply pipe and a drainage pipe, respectively.

[0012] By adopting the above technical solution, water is filled into the first eccentric assembly and the second eccentric assembly to change the overall weight of the vibrating wheel, thereby further assisting in compacting the soil layer. At the same time, multiple sets of data are formed by detecting different total weights of vibrating wheels, thereby achieving more accurate density detection of the roadbed.

[0013] Optionally, a water level sensor is provided in the drain pipe, and when the drain pipe is filled with water and contacts the water level sensor, the water tank stops supplying water to the first eccentric component or the second eccentric component.

[0014] By adopting the above technical solution, when the water level sensor sends a signal, it indicates that the first eccentric component and the second eccentric component are already filled with water, which makes it convenient for the operator to stop the water filling operation in time.

[0015] Optionally, the first linkage assembly includes a first belt, a first main wheel and a first secondary wheel, the first main wheel sleeve is fixed on the rotating shaft of the vibration wheel, the first secondary wheel sleeve is fixed on the first eccentric rod, and the first belt is simultaneously looped on the first main wheel and the second main wheel and is in a tensioned state.

[0016] By adopting the above technical solution, the first main wheel and the first secondary wheel are brought into a synchronous rotation state through the tensioned first belt, thereby realizing the synchronous rotation of the rotating shaft of the vibration wheel and the first eccentric rod.

[0017] Optionally, a protrusion is fixed at the center of the end surface of each end of the vibration wheel, and a connecting block is rotatably connected to the side of the protrusion facing away from the vibration wheel. The protrusion rotates relative to the connecting block, and the rotating shaft of the vibration wheel passes through the protrusion and the connecting block in sequence and is rotatably connected to the frame. The protrusion is fixedly connected to the rotating shaft of the vibration wheel, and the connecting block is fixedly connected to the frame. The rotating shaft of the vibration wheel rotates relative to the connecting block, and the interior of the protrusion is connected to the interior of the connecting block; the interior of the first eccentric rod and the interior of the second eccentric rod are respectively connected to the corresponding interiors of the protrusion, and the ends of the water supply pipe and the drainage pipe are respectively connected to the interior of the connecting block.

[0018] By adopting the above technical solution, when the vibration wheel rotates, water can be delivered to the inside of the first eccentric component and the inside of the second eccentric component through the water supply pipe, the connecting block and the protrusion, without affecting the rotation of the vibration wheel or the synchronous rotation of the first eccentric rod and the second eccentric rod following the vibration wheel.

[0019] Optionally, the rotating shaft of the vibration wheel is hollow inside, and a connecting pipe is fixed between the rotating shaft of the vibration wheel and the inner wall of the vibration wheel, one end of the connecting pipe is connected to the inside of the rotating shaft of the vibration wheel, and the other end is connected to the cavity; the water inlet pipe and the water outlet pipe are connected to the cavity, that is, the end parts of the water inlet pipe and the water outlet pipe are respectively connected to the center of the end part of the rotating shaft of the vibration wheel.

[0020] By adopting the above technical solution, when the vibration wheel rotates, water can be delivered to the rotating shaft of the vibration wheel through the water inlet pipe, and water can be delivered to the cavity through the connecting pipe to complete the filling of the cavity with water without affecting the rotation of the vibration wheel.

[0021] Optionally, a magnet is fixed on the compaction sensor, and the magnet is magnetically attracted to the frame.

[0022] By adopting the above technical solution, magnetic adsorption facilitates the installation and disassembly of the compaction sensor.

[0023] Optionally, the frame includes an integrated card seat, a card strip is horizontally slidably arranged on the card seat, the magnet is inserted into and adsorbed on the card seat, and the magnet adsorbs the card strip at the same time, and the card strip is in an inverted L shape.

[0024] By adopting the above technical solution, the magnetic attraction effect of the magnet is fully utilized to hold the card strip tightly against the compaction sensor. Since the card strip is in an inverted L shape, the compaction sensor is limited in the vertical direction, thereby improving the stability of the compaction sensor fixed on the frame.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: The compaction sensor can collect the data of the agitation force and reflect the compaction degree of the roadbed by measuring the pressure change. Compared with the traditional compaction detection method, this device changes the result control into process control, and grasps the real-time data of the compaction through the pressure sensor, thus realizing the comprehensive detection covering the entire compaction surface; The vibrating wheel compacts with its own weight. Due to its small mass, the vibration impact force and compaction depth that the vibrating wheel can generate may be relatively limited. But this also allows the roller to better adapt to the initial state of the roadbed during the initial compaction, avoiding excessive impact on the soil layer that is not fully stabilized. When the water in the water tank is filled into the cavity, the mass of the vibrating wheel increases significantly, which causes the vibrating wheel to generate greater inertial force and vibration impact force during the vibration process, thereby achieving a deeper compaction effect. The larger mass also means that the vibrating wheel can transfer more energy to the roadbed when it contacts the ground, which helps to further compact the soil layer; By filling the first eccentric assembly and the second eccentric assembly with water, the overall weight of the vibrating wheel is changed to further assist in compacting the soil layer. At the same time, by detecting different total weights of the vibrating wheels, multiple sets of data are generated to achieve more accurate density detection of the roadbed. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application; Figure 2 is a vertical cross-sectional view of an embodiment of the present application; Figure 3 It is a vertical cross-sectional view showing the location of the connecting pipe; Figure 4 yes Figure 2 A partial enlarged schematic diagram of part A.

[0027] In the figure, 1. frame; 11. engine; 12. compaction sensor; 13. information collection device; 14. display; 15. water tank; 151. water inlet pipe; 152. water outlet pipe; 153. water supply pipe; 154. drainage pipe; 155. water level sensor; 2. vibration wheel; 21. cavity; 22. protrusion; 23. connecting block; 24. connecting pipe; 25. partition plate; 3. first eccentric assembly; 31. first eccentric rod; 32. first eccentric block; 4. second eccentric assembly; 41. second eccentric rod; 42. second eccentric block; 5. first linkage assembly; 51. first belt; 52. first main wheel; 53. first secondary wheel; 6. second linkage assembly; 61. second belt; 62. second main wheel; 63. second secondary wheel; 7. magnet; 8. holder; 81. card strip; 82. slideway. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-Figure 4 This application is described in further detail.

[0029] The embodiment of the present application discloses a device for detecting the compaction degree of roadbed and pavement of a highway engineering project.

[0030] refer to Figure 1 A roadbed and pavement compaction detection device for highway engineering includes a frame 1, an information collection device 13 and a display 14 are fixed on the top of the frame 1, a vibration wheel 2 is rotatably connected to the bottom of the frame 1, the rotation axis of the vibration wheel 2 passes through the frame 1 and is horizontally arranged, a compaction sensor 12 is fixed on the frame 1, the compaction sensor 12 is located near the center line of the vibration wheel 2, the compaction sensor 12 can collect agitation force data, and reflect the compaction degree of the roadbed by measuring pressure changes, the information collection device 13 collects information and displays it on the display 14 for the convenience of operators to read.

[0031] refer to Figure 1 The vibration wheel 2 is a cylindrical structure with a hollow interior, and a cavity 21 is opened in its wall thickness. A travel motor is fixed on the rotating shaft of the vibration wheel 2. The engine 11 provides power for the rotating wheel in the following manner: a hydraulic pump and a hydraulic oil tank are provided on the engine 11. The engine 11 drives the hydraulic pump to suck oil from the hydraulic oil tank for pressurization, generates high-pressure hydraulic oil and distributes it to the travel motor. The travel motor is a hydraulic actuator that converts hydraulic energy into mechanical energy and finally drives the rotating shaft of the vibration wheel 2 to rotate, that is, the rotating shaft of the vibration wheel 2 rotates relative to the frame 1. The travel motor, hydraulic pump and hydraulic oil tank are no longer shown in the figure.

[0032] refer to Figure 2 and Figure 3 , the first eccentric component 3, the second eccentric component 4, the first linkage component 5 and the second linkage component 6 are arranged inside the vibration wheel 2. The end faces of both ends of the vibration wheel 2 are fixed with protrusions 22 at their centers, and the protrusions 22 are rotatably connected with connecting blocks 23 on the side away from the vibration wheel 2. The connecting blocks 23 are fixedly connected to the frame 1, and the protrusions 22 rotate with the vibration wheel 2, and the cam rotates relative to the connecting blocks 23. The rotating shaft of the vibration wheel 2 passes through the protrusions 22, the connecting blocks 23 and the frame 1 in sequence, and the end face of the rotating shaft of the vibration wheel 2 protrudes from the outer wall of the frame 1, and the rotating shaft of the vibration wheel 2 is rotatably connected to the frame 1. The protrusions 22 are also fixedly connected to the rotating shaft of the vibration wheel 2, and the inside of the protrusions 22 is connected to the inside of the connecting blocks 23.

[0033] refer to Figure 2 and Figure 3The first eccentric assembly 3 includes a first eccentric rod 31 and a first eccentric block 32. One end of the first eccentric rod 31 is rotatably connected to the inner wall of the end of the vibration wheel 2. The other end of the first eccentric rod 31 is cantilevered. The first eccentric rod 31 rotates relative to the vibration wheel 2. The first eccentric rod 31 is arranged parallel to the rotation axis of the vibration wheel 2. The first eccentric block 32 is fixed on the first eccentric rod 31. The interior of the first eccentric rod 31 and the interior of the first eccentric block 32 are both hollow and connected to each other. The end of the first eccentric rod 31 passes through the vibration wheel 2 and is connected to the inside of the protrusion 22. A water supply pipe 153 and a drainage pipe 154 are arranged between the water tank 15 and the connection block 23. One end of the water supply pipe 153 and the drainage pipe 154 are respectively connected to the inside of the connection block 23, and the other end is connected to the inside of the water tank 15.

[0034] refer to Figure 2 and Figure 3 The second eccentric assembly 4 includes a second eccentric rod 41 and a second eccentric block 42. One end of the second eccentric rod 41 is rotatably connected to the inner wall of the end of the vibration wheel 2. The other end of the second eccentric rod 41 is cantilevered. The second eccentric rod 41 rotates relative to the vibration wheel 2. The second eccentric rod 41 is arranged parallel to the rotation axis of the vibration wheel 2. The second eccentric block 42 is fixed on the second eccentric rod 41. The second eccentric block 42 and the second eccentric rod 41 are both hollow inside and connected to each other. The second eccentric assembly 4 and the first eccentric assembly 3 are centrally symmetrically arranged with the center of the vibration wheel 2 as the symmetry point. The end of the second eccentric rod 41 passes through the end face of the vibration wheel 2 close to it and is connected to the corresponding protrusion 22. Similarly, a water supply pipe 153 and a drainage pipe 154 are also connected between the connection block 23 close to the second eccentric rod 41 and the water tank 15.

[0035] refer to Figure 2 and Figure 3 The first linkage assembly 5 is located between the first eccentric rod 31 and the rotating shaft of the vibration wheel 2, and the first linkage assembly 5 includes a first belt 51, a first main wheel 52 and a first secondary wheel 53. The first main wheel 52 is fixed on the rotating shaft of the vibration wheel 2 by changing the sleeve, and the first secondary wheel 53 is fixed on the first eccentric rod 31 by changing the sleeve. The first belt 51 is simultaneously looped on the first main wheel 52 and the second main wheel 62 and is in a tensioned state; similarly, the second linkage assembly 6 is located between the second eccentric rod 41 and the rotating shaft of the vibration wheel 2, and the second linkage assembly 6 includes a second belt 61, a second main wheel 62 and a second secondary wheel 63. The second main wheel 62 is fixed on the rotating shaft of the vibration wheel 2 by changing the sleeve, and the second secondary wheel 63 is fixed on the second eccentric rod 41. The second belt 61 is simultaneously looped on the second main wheel 62 and the second main wheel 62 and is in a tensioned state.

[0036] refer to Figure 1 , Figure 2 and Figure 3The rotating shaft of the vibration wheel 2 is hollow inside, and a connecting pipe 24 is fixed between the rotating shaft of the vibration wheel 2 and the inner wall of the vibration wheel 2, one end of the connecting pipe 24 is connected to the inside of the rotating shaft of the vibration wheel 2, and the other end is connected to the cavity 21; the water tank 15 is connected to the end of the rotating shaft of the vibration wheel 2 through an inlet pipe 151 and an outlet pipe 152, that is, one end of the inlet pipe 151 is connected to the center of the end of the rotating shaft of the vibration wheel 2, and one end of the outlet pipe 152 is connected to the center of the other end of the rotating shaft of the vibration wheel 2, and a partition plate 25 is fixed inside the rotating shaft of the vibration wheel 2, and the partition plate 25 partitions the internal space of the rotating shaft of the vibration wheel 2. Two connecting pipes 24 are provided corresponding to the end of the rotating shaft of the vibration wheel 2, that is, one at each end. The water tank 15 delivers water to the cavity 21 through the water inlet pipe 151, passing through the rotating shaft of the vibration wheel 2 and one of the connecting pipes 24. The air in the cavity 21 flows into the water tank 15 through the water outlet pipe 152 through the other connecting pipe 24 and the rotating shaft of the vibration wheel 2, thereby maintaining pressure balance.

[0037] refer to Figure 2 A water level sensor 155 is provided in the drain pipe 154. When the drain pipe 154 is filled with water and contacts the water level sensor 155, the water tank 15 stops supplying water to the first eccentric assembly 3 or the second eccentric assembly 4.

[0038] refer to Figure 2 and Figure 4 A magnet 7 is fixed on the compaction sensor 12, and the frame 1 includes a holder 8 which is integrated with each other. A card strip 81 is horizontally slidably arranged on the holder 8. The holder 8 is located on the outer wall of the frame 1 and close to the rotating shaft of the vibration wheel 2. The magnet 7 is inserted and adsorbed on the holder 8. The magnet 7 also adsorbs the card strip 81. The card strip 81 is in an inverted L shape. A slider is arranged at the bottom of the card strip 81. A slideway 82 is arranged in the holder 8. The slider slides in the slideway 82 and cannot be separated from the slideway 82.

[0039] The implementation principle of a roadbed and pavement compaction detection device for a highway engineering project in an embodiment of the present application is as follows: the engine 11 provides power for the rotation of the vibration wheel 2. After the rotation shaft of the vibration wheel 2 starts to rotate, the first eccentric rod 31 and the second eccentric rod 41 are caused to rotate synchronously with the rotation shaft of the vibration wheel 2 through the linkage effect of the first linkage assembly 5 and the second linkage assembly 6. As the first eccentric block 32 and the second eccentric block 42 rotate, the positions of the first eccentric block 32 and the second eccentric block 42 change, and the force applied to the ground also changes. For example, when the first eccentric block 32 When it is located above the first eccentric rod 31, the force applied to the ground is relatively small. When the first eccentric block 32 is located below the first eccentric rod 31, the force applied to the ground is relatively large. Finally, the vibration wheel 2 forms a pressure state with periodic changes in the agitation force on the ground. The compaction sensor 12 can collect the agitation force data and reflect the compaction degree of the roadbed by measuring the pressure change. Compared with the traditional compaction detection method, this device changes the result control into process control, and grasps the real-time data of the compaction through the pressure sensor, thereby realizing a comprehensive detection covering the entire compaction surface. The overall weight of the vibration wheel 2 is changed by water injection, and multiple sets of data are monitored by the control variable method to ensure the accuracy of data monitoring.

[0040] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A roadbed and pavement compaction detection device for highway engineering, characterized in that: including a frame (1); A vibration wheel (2) is rotatably mounted on the frame (1), wherein the rotation axis of the vibration wheel is horizontally arranged; An engine (11) is fixedly mounted on the frame (1) and is used to provide power for the rotation of the vibration wheel (2); A first eccentric assembly (3) is arranged inside the vibration wheel (2), the first eccentric assembly (3) comprising a first eccentric rod (31) and a first eccentric block (32), the first eccentric block (32) being fixed to the first eccentric rod (31), one end of the first eccentric rod (31) being rotatably connected to the inner wall of the vibration wheel (2), and the other end being cantilevered, the first eccentric rod (31) being arranged parallel to the rotation axis of the vibration wheel (2), and the first eccentric rod (31) rotating relative to the vibration wheel (2); A first linkage assembly (5) is arranged inside the vibration wheel (2) and is used for the first eccentric rod (31) to rotate synchronously with the rotation axis of the vibration wheel (2); A compaction sensor (12) is fixed on the frame (1) and is located close to the center line of the vibration wheel (2); an information collection device (13) and a display (14) are fixed on the frame (1), the information collection device (13) is used to cooperate with the compaction sensor (12) to collect information, and the display (14) is used to cooperate with the information collector to display information.

2. A highway engineering roadbed and pavement compaction detection device according to claim 1, characterized in that: A second eccentric assembly (4) is arranged inside the vibration wheel (2), the second eccentric assembly (4) comprising a second eccentric rod (41) and a second eccentric block (42); one end of the second eccentric rod (41) is rotatably connected to the inner wall of the vibration wheel (2), and the other end is cantilevered; the second eccentric block (42) is fixed on the second eccentric rod (41); the second eccentric rod (41) rotates relative to the vibration wheel (2); the second eccentric assembly (4) and the first eccentric assembly (3) are arranged symmetrically with the center of the vibration wheel (2) as a symmetric point; and a second linkage assembly (6) for the second eccentric rod (41) to rotate synchronously with the rotating shaft of the vibration wheel (2) is arranged inside the vibration wheel (2).

3. A highway engineering roadbed and pavement compaction detection device according to claim 2, characterized in that: A water tank (15) is fixed on the frame (1); the vibrating wheel (2) is hollow and has a cavity (21) formed in its wall thickness; a water inlet pipe (151) and a water outlet pipe (152) are connected between the water tank (15) and the cavity (21).

4. A highway engineering roadbed and pavement compaction detection device according to claim 3, characterized in that: The first eccentric assembly (3) and the second eccentric assembly (4) are both hollow inside, the first eccentric block (32) is connected to the inside of the first eccentric rod (31), the second eccentric block (42) is connected to the inside of the second eccentric rod (41), and the water tank (15) is respectively connected to the first eccentric assembly (3) and the second eccentric assembly (4) via a water supply pipe (153) and a drainage pipe (154).

5. A highway engineering roadbed and pavement compaction detection device according to claim 4, characterized in that: A water level sensor (155) is provided in the drainage pipe (154). When the drainage pipe (154) is filled with water and contacts the water level sensor (155), the water tank (15) stops supplying water to the first eccentric component (3) or the second eccentric component (4).

6. A highway engineering roadbed and pavement compaction detection device according to claim 1, characterized in that: The first linkage assembly (5) comprises a first belt (51), a first main wheel (52) and a first secondary wheel (53); the first main wheel (52) is sleeved and fixed on the rotating shaft of the vibration wheel (2); the first secondary wheel (53) is sleeved and fixed on the first eccentric rod (31); the first belt (51) is simultaneously sleeved on the first main wheel (52) and the second main wheel (62) and is in a tensioned state.

7. A highway engineering roadbed and pavement compaction detection device according to claim 4, characterized in that: A protrusion (22) is fixed at the center of the end surface of both ends of the vibration wheel (2). A connecting block (23) is rotatably connected to the side of the protrusion (22) facing away from the vibration wheel (2). The protrusion (22) rotates relative to the connecting block (23). The rotating shaft of the vibration wheel (2) passes through the protrusion (22) and the connecting block (23) in sequence and is rotatably connected to the frame (1). The protrusion (22) is fixedly connected to the rotating shaft of the vibration wheel (2). The connecting block (23) is fixedly connected to the frame (1). The rotating shaft of the vibration wheel (2) rotates relative to the connecting block (23). The interior of the protrusion (22) is connected to the interior of the connecting block (23). The interior of the first eccentric rod (31) and the interior of the second eccentric rod (41) are respectively connected to the interior of the corresponding protrusion (22). The ends of the water supply pipe (153) and the drainage pipe (154) are respectively connected to the interior of the connecting block (23).

8. A highway engineering roadbed and pavement compaction detection device according to claim 3, characterized in that: The rotating shaft of the vibration wheel (2) is hollow inside, and a connecting pipe (24) is fixed between the rotating shaft of the vibration wheel (2) and the inner wall of the vibration wheel (2); one end of the connecting pipe (24) is connected to the inside of the rotating shaft of the vibration wheel (2), and the other end is connected to the cavity (21); the water inlet pipe (151) and the water outlet pipe (152) are connected to the cavity (21), that is, the ends of the water inlet pipe (151) and the water outlet pipe (152) are connected to the center of the end of the rotating shaft of the vibration wheel (2) respectively.

9. A highway engineering roadbed and pavement compaction detection device according to claim 1, characterized in that: A magnet (7) is fixed on the compaction sensor (12), and the magnet (7) is magnetically attracted to the frame (1).

10. A highway engineering roadbed and pavement compaction detection device according to claim 9, characterized in that: The frame (1) comprises a card seat (8) which is integrated with each other. A card strip (81) is horizontally slidably arranged on the card seat (8). The magnet (7) is inserted into and adsorbed on the card seat (8). The magnet (7) also adsorbs the card strip (81). The card strip (81) is in an inverted L shape.

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