Pavement and roadbed performance detection device

Abstract

The utility model relates to the technical field of detection devices, and discloses a pavement and roadbed performance detection device which comprises a detection box, supporting seats are fixedly connected to the two sides of the middle of the upper surface of the detection box, cameras are fixedly connected to the outer walls of the adjacent sides of the supporting seats, and a mounting box is fixedly connected to the middle of the outer wall of the front end of the detection box. A storage cavity is formed in the mounting box, a servo motor is fixedly connected to the middle of the top surface of the storage cavity, a screw rod is fixedly connected to the output end of the servo motor, and a rod body of the screw rod is sleeved with a threaded sleeve block. When the road surface and roadbed performance detection device is used, the camera is used for conveniently photographing a hollow roadbed surface, and then the servo motor is started in a matched manner to drive the screw rod to rotate and drive the guide rod and the graduated scale at the lower end to move, so that the depth of a hollow can be measured and recorded; the method is helpful for deeply knowing the reasons of the potholes and potential influences possibly caused to the roadbed.

Description

Technical Field

[0001] This utility model relates to the field of testing device technology, and in particular to a road surface and subgrade performance testing device. Background Technology

[0002] As is well known, the roadbed is the foundation of the road surface. It is an earthwork structure formed by excavation or filling. It bears all the loads transmitted from the road surface and provides stable support for the road surface. Its strength and stability have a crucial impact on the performance and lifespan of the road surface. As the basic part of the road structure, the performance of the roadbed is directly related to the overall quality and service life of the road. Performance testing devices are important tools for evaluating the performance of the roadbed. The roadbed can be tested through the testing devices.

[0003] However, traditional pavement and subgrade performance testing devices can usually only test one indicator. To understand the performance of pavement and subgrade, multiple different testing devices are required, which increases testing costs and workload. Therefore, technological improvements are urgently needed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a road surface and subgrade performance testing device. When in use, this device uses a camera to easily photograph the potholes on the subgrade surface. Subsequently, by coordinating with the start of a servo motor to drive the screw to rotate, it simultaneously moves the guide rod and the lower scale, enabling the measurement and recording of pothole depth. This helps to gain a deeper understanding of the causes of pothole formation and their potential impact on the subgrade.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A road surface and subgrade performance testing device includes a testing box. Support seats are fixedly connected to both sides of the upper surface of the testing box. A camera is fixedly connected to the outer wall of the adjacent side of each support seat. A mounting box is fixedly connected to the middle of the front outer wall of the testing box. A storage cavity is opened inside the mounting box. A servo motor is fixedly connected to the middle of the top surface of the storage cavity. A screw is fixedly connected to the output end of the servo motor. A threaded sleeve is fitted onto the shaft of the screw. Guide rods are fixedly connected to the four corners of the lower surface of the threaded sleeve. The lower end of the guide rod passes through the mounting box and is fixedly connected to a mounting plate. A scale is fixedly connected to the lower end of the mounting plate.

[0007] Storage slots are provided on both sides of the lower surface of the testing box. A synchronous motor is fixedly connected to the upper part of the inner wall of the rear end of each storage slot. A rotating roller is fixedly connected to the output end of each synchronous motor. Multiple steel ropes are fixedly connected to the outer wall of each rotating roller. A mass block is fixedly connected to the lower end of each steel rope.

[0008] Compared with existing road and subgrade performance testing devices, this new device, through the above technical solution, uses a synchronous motor to drive a rotating roller while simultaneously winding and unwinding multiple sets of steel ropes. This, in turn, causes multiple sets of mass blocks to impact the subgrade. By controlling the speed and number of rotations of the synchronous motor, the speed and force of the winding and unwinding of the steel ropes can be adjusted, thereby changing the impact height and impact energy of the mass blocks. This allows for the simulation of different levels of impact intensity, adapting to different types of subgrades and different testing requirements. This improves the versatility and adaptability of the testing device, resulting in higher practical performance.

[0009] Furthermore, a PLC control panel is provided on the upper part of one side of the outer wall of the detection box, and the PLC control panel is electrically connected to the camera, servo motor and synchronous motor respectively;

[0010] The above technical solution allows for easy control of the switching on and off of the camera, servo motor, and synchronous motor via a PLC control panel.

[0011] Furthermore, push rods are fixedly connected to the upper part of the rear end of the outer walls on both sides of the detection box;

[0012] The above technical solution allows the push rod to easily drive the entire unit to move.

[0013] Furthermore, casters are fixedly connected to the four corners of the lower surface of the testing box;

[0014] The above technical solution facilitates overall movement through the use of casters.

[0015] Furthermore, a limiting roller is fixedly connected to the top surface of the storage trough near the steel rope, and a limiting groove is formed in the middle of the outer wall of the limiting roller, with the outer wall of the steel rope fitting into the limiting groove.

[0016] The above technical solution facilitates the offset during steel rope winding by using the limiting roller.

[0017] Furthermore, a protective shell is fixedly connected to the inner wall of the rear end of the storage slot near the edge of the synchronous motor;

[0018] The above technical solution provides a protective shell for the synchronous motor.

[0019] Furthermore, the threaded sleeve is slidably connected to the inner wall of the storage cavity;

[0020] The above technical solution facilitates the lateral movement of the guide rod by using the threaded sleeve block.

[0021] This utility model has the following beneficial effects:

[0022] 1. The present invention proposes a road surface and subgrade performance testing device. Compared with existing road surface and subgrade performance testing devices, this device allows for easy photographing of potholes on the subgrade surface using a camera. Subsequently, by cooperating with the start of a servo motor to drive the screw to rotate, the guide rod and the lower scale are moved, enabling the measurement and recording of pothole depth. This helps to gain a deeper understanding of the causes of pothole formation and the potential impact on the subgrade.

[0023] 2. The road surface and subgrade performance testing device proposed in this utility model, compared with the existing road surface and subgrade performance testing devices, when in use, drives the rotating roller to rotate by starting the synchronous motor, which in turn drives multiple sets of steel ropes to be wound and released. This in turn drives multiple sets of mass blocks to impact the subgrade. By controlling the speed and number of rotations of the synchronous motor, the speed and force of the steel rope winding and releasing can be adjusted, thereby changing the impact height and impact energy of the mass blocks, realizing the simulation of different levels of impact intensity, so as to adapt to different types of subgrades and different testing requirements, improving the versatility and adaptability of the testing device, and having high practical performance. Attached Figure Description

[0024] Figure 1 This is an isometric view of a road surface and subgrade performance testing device proposed in this utility model;

[0025] Figure 2 This is a cross-sectional view of the mounting box in a road surface and subgrade performance testing device proposed in this utility model.

[0026] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0027] Figure 4 This is a bottom view of a road surface and subgrade performance testing device proposed in this utility model;

[0028] Figure 5 This is a schematic diagram of the mass block in a roadbed performance testing device proposed in this utility model;

[0029] Figure 6 for Figure 5 Enlarged view of point B in the middle.

[0030] Legend:

[0031] 1. Testing box; 11. PLC control panel; 12. Push rod; 13. Support base; 14. Camera; 15. Casters; 2. Mounting box; 21. Storage cavity; 22. Servo motor; 23. Screw; 24. Threaded sleeve block; 25. Guide rod; 26. Mounting plate; 27. Scale; 3. Storage slot; 31. Synchronous motor; 32. Rotating roller; 33. Steel rope; 34. Mass block; 35. Limit roller; 36. Limit groove; 37. Protective shell. Detailed Implementation

[0032] 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.

[0033] Reference Figure 1-6 An embodiment of this utility model provides a road surface and subgrade performance testing device, including a testing box 1. Support seats 13 are fixedly connected to both sides of the middle of the upper surface of the testing box 1. A camera 14 is fixedly connected to the outer wall of the adjacent side of the support seat 13. An installation box 2 is fixedly connected to the middle of the front outer wall of the testing box 1. A storage cavity 21 is opened inside the installation box 2. A servo motor 22 is fixedly connected to the middle of the top surface of the storage cavity 21. A screw 23 is fixedly connected to the output end of the servo motor 22. A threaded sleeve block 24 is sleeved on the body of the screw 23. Guide rods 25 are fixedly connected to the four corners of the lower surface of the threaded sleeve block 24. The lower end of the guide rod 25 passes through the installation box 2 and is fixedly connected to an installation plate 26. A scale 27 is fixedly connected to the lower end of the installation plate 26.

[0034] Storage slots 3 are provided on both sides of the lower surface of the test box 1. A synchronous motor 31 is fixedly connected to the upper part of the inner wall of the rear end of the storage slot 3. A rotating roller 32 is fixedly connected to the output end of the synchronous motor 31. Multiple steel ropes 33 are fixedly connected to the outer wall of the rotating roller 32. A mass block 34 is fixedly connected to the lower end of the steel rope 33.

[0035] Compared with existing road and subgrade performance testing devices, this new device, through the above technical solution, uses a synchronous motor 31 to drive the rotating roller 32 to rotate, which in turn drives multiple sets of steel ropes 33 to be wound and released. This, in turn, drives multiple sets of mass blocks 34 to impact the subgrade. By controlling the speed and number of rotations of the synchronous motor 31, the speed and force of the winding and releasing of the steel ropes 33 can be adjusted, thereby changing the impact height and impact energy of the mass blocks 34. This allows for the simulation of different levels of impact intensity, adapting to different types of subgrades and different testing requirements. This improves the versatility and adaptability of the testing device, resulting in higher practical performance.

[0036] A PLC control panel 11 is installed on the upper part of one side of the outer wall of the detection box 1. The PLC control panel 11 is electrically connected to the camera 14, the servo motor 22 and the synchronous motor 31 respectively.

[0037] The above technical solution allows for easy control of the switching on and off of the camera 14, servo motor 22, and synchronous motor 31 via the PLC control panel 11.

[0038] Push rods 12 are fixedly connected to the upper part of the rear end of both sides of the outer wall of the test box 1;

[0039] The above technical solution facilitates the movement of the entire assembly via push rod 12.

[0040] Universal wheels 15 are fixedly connected to the four corners of the lower surface of the test box 1;

[0041] The above technical solution facilitates overall movement through the casters 15.

[0042] Limiting rollers 35 are fixedly connected to the top surface of the storage tank 3 on the side near the steel rope 33. A limiting groove 36 is opened in the middle of the outer wall of the limiting roller 35, and the outer wall of the steel rope 33 is in contact with the limiting groove 36.

[0043] The above technical solution facilitates the offset of the steel rope 33 during winding by using the limiting roller 35.

[0044] A protective shell 37 is fixedly connected to the inner wall of the rear end of the storage tank 3 near the edge of the synchronous motor 31.

[0045] The above technical solution allows for easy protection of the synchronous motor 31 through the protective shell 37.

[0046] The threaded sleeve 24 is slidably connected to the inner wall of the storage cavity 21;

[0047] The above technical solution facilitates the lateral movement of the guide rod 25 by means of the threaded sleeve 24.

[0048] Working principle: During use, the device is moved to the detection area via push rod 12 and caster wheel 15. The camera 14 is activated using the PLC control panel to take pictures and record the potholes on the roadbed surface. The servo motor 22 is activated, which drives the screw 23 to rotate, causing the threaded sleeve 24 to slide on the inner wall of the storage cavity 21. This, in turn, drives the guide rod 25 and the lower scale 27 to move laterally, thus completing the measurement of the pothole depth. When detecting the roadbed performance, the synchronous motor 31 is activated via the PLC control panel, which drives the rotating roller 32 to rotate, causing multiple sets of steel ropes 33 to be wound up and down, so that the mass block 34 impacts the roadbed. By controlling the speed and number of rotations of the synchronous motor 31, the speed and force of the winding and unwinding of the steel ropes 33 are adjusted, changing the impact height and energy of the mass block 34, simulating different levels of impact intensity, and realizing the detection of different types of roadbeds.

[0049] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pavement and subgrade performance testing device, comprising a testing box (1), characterized in that: The upper surface of the detection box (1) is fixedly connected to two sides of the middle part of the upper surface of the box (1). A camera (14) is fixedly connected to the outer wall of the adjacent side of the support (13). An installation box (2) is fixedly connected to the middle of the front outer wall of the detection box (1). A storage cavity (21) is opened inside the installation box (2). A servo motor (22) is fixedly connected to the middle of the top surface of the storage cavity (21). A screw (23) is fixedly connected to the output end of the servo motor (22). A threaded sleeve (24) is fitted on the body of the screw (23). A guide rod (25) is fixedly connected to the four corners of the lower surface of the threaded sleeve (24). The lower end of the guide rod (25) passes through the installation box (2) and is fixedly connected to the installation plate (26). A scale (27) is fixedly connected to the lower end of the installation plate (26). Storage slots (3) are provided on both sides of the lower surface of the detection box (1). A synchronous motor (31) is fixedly connected to the upper part of the inner wall of the rear end of the storage slot (3). A rotating roller (32) is fixedly connected to the output end of the synchronous motor (31). Multiple steel ropes (33) are fixedly connected to the outer wall of the rotating roller (32). A mass block (34) is fixedly connected to the lower end of the steel rope (33).

2. The pavement and subgrade performance testing device according to claim 1, characterized in that: A PLC control panel (11) is provided on the upper part of the outer wall of one side of the detection box (1). The PLC control panel (11) is electrically connected to the camera (14), the servo motor (22) and the synchronous motor (31).

3. The pavement and subgrade performance testing device according to claim 1, characterized in that: Push rods (12) are fixedly connected to the upper part of the rear end of the outer walls on both sides of the detection box (1).

4. The pavement and subgrade performance testing device according to claim 1, characterized in that: The four corners of the lower surface of the testing box (1) are all fixedly connected with casters (15).

5. The pavement and subgrade performance testing device according to claim 1, characterized in that: Limiting rollers (35) are fixedly connected to the top surface of the storage trough (3) on the side near the steel rope (33). A limiting groove (36) is opened in the middle of the outer wall of the limiting roller (35), and the outer wall of the steel rope (33) is in contact with the limiting groove (36).

6. The pavement and subgrade performance testing device according to claim 1, characterized in that: A protective shell (37) is fixedly connected to the inner wall of the rear end of the storage tank (3) near the edge of the synchronous motor (31).

7. The pavement and subgrade performance testing device according to claim 1, characterized in that: The threaded sleeve (24) is slidably connected to the inner wall of the storage cavity (21).

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