Compaction degree detection device

Abstract

The utility model belongs to the technical field of roadbed detection, and discloses a compaction degree detection device. The compaction degree detection device comprises a walking mechanism, a drilling mechanism and a sand filling mechanism, wherein the walking mechanism comprises a frame and walking wheels which are connected with each other; the drilling mechanism comprises a driving assembly and a drilling assembly, the driving assembly is arranged on the frame, the drilling assembly is connected to the output end of the driving assembly, and the driving assembly can drive the drilling assembly to conduct drilling operation; the sand filling mechanism comprises a sand storage part and a weight sensor, the sand storage part is arranged on the frame, and the weight sensor is arranged between the sand storage part and the frame and can measure the weight of the sand storage part. According to the compaction degree detection device provided by the utility model, the drilling mechanism and the sand filling mechanism work in sequence, so that the time of exposing a sample in the air is shortened, the accuracy of a roadbed compaction degree detection result is improved, the compaction degree detection device can conveniently move at multiple sample points through the walking mechanism, the detection time is shortened, and the detection efficiency is improved; and the workload of workers is reduced.

Description

Technical Field

[0001] This utility model relates to the field of roadbed testing technology, and in particular to a compaction degree testing device. Background Technology

[0002] The compaction degree of the subgrade is the key to the quality of subgrade construction during the subgrade construction process. There are many methods for testing the compaction degree of the subgrade. The most common method at present is the sand filling method, which uses uniform sand particles to replace the volume of the test hole.

[0003] Existing compaction testing devices based on the sand cone method include sand storage tanks. The weight of the sand particles flowing out of the tank is calculated to determine the volume of the sample opening, and thus the roadbed compaction degree is calculated. While these devices are relatively accurate for single testing points, they become excessively time-consuming when there are many testing points. Furthermore, variations in the moisture content of the samples collected from the sample opening can affect the accuracy of the measurement results and increase the workload of the testing personnel. Utility Model Content

[0004] The purpose of this invention is to provide a compaction testing device that can shorten the compaction testing time of roadbed, improve the accuracy of roadbed compaction testing, and reduce the workload of testing personnel.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A compaction degree testing device, comprising:

[0007] The traveling mechanism includes an interconnected frame and wheels;

[0008] A drilling mechanism includes a drive assembly and a drilling assembly. The drive assembly is mounted on the frame, and the drilling assembly is connected to the output end of the drive assembly. The drive assembly is capable of driving the drilling assembly to perform drilling operations.

[0009] The sand filling mechanism includes a sand storage component and a weight sensor. The sand storage component is disposed on the vehicle frame, and the weight sensor is disposed between the sand storage component and the vehicle frame, and is capable of measuring the weight of the sand storage component.

[0010] The aforementioned compaction testing device includes a drive assembly comprising a first drive member, a support plate, and a second drive member. The first drive member is disposed on the vehicle frame, and the support plate is disposed at the output end of the first drive member. The first drive member is capable of driving the support plate to move linearly. The second drive member is disposed on the support plate, and the drilling assembly is disposed at the output end of the second drive member. The second drive member is capable of driving the drilling assembly to rotate around its own axis.

[0011] In the aforementioned compaction testing device, the drilling assembly includes a support rod and a spiral blade. The spiral blade is fixedly connected to the support rod and extends along the axial direction of the support rod. One end of the support rod is connected to the second driving member, and the other end has a drill bit.

[0012] In the aforementioned compaction testing device, the drive assembly further includes a reset member disposed between the support plate and the vehicle frame, which can drive the support plate to stop at the initial position.

[0013] In the aforementioned compaction testing device, multiple reset components are provided, and the multiple reset components are evenly distributed around the circumference of the drilling assembly.

[0014] The aforementioned compaction testing device includes a sand storage unit comprising a storage tank, a flow pipe, and a switch valve. The storage tank is mounted on the vehicle frame, the weight sensor is mounted on both the storage tank and the vehicle frame, the flow pipe is connected to the storage tank, and the switch valve is mounted on the flow pipe.

[0015] The aforementioned compaction testing device further includes a stabilizing element that is adjustablely connected to the vehicle frame and can support the supporting surface.

[0016] In the aforementioned compaction testing device, the stabilizing element is located between the drilling mechanism and the sand filling mechanism.

[0017] The aforementioned compaction testing device includes a support wheel and a swivel wheel.

[0018] The aforementioned compaction testing device, wherein the walking mechanism further includes an operating handle, which is fixedly connected to the vehicle frame.

[0019] The beneficial effects of this utility model are:

[0020] The compaction degree testing device provided by this utility model features a walking mechanism that allows the device to move quickly across the roadbed, reducing travel time between different sample points and improving testing efficiency. The device includes a drilling mechanism and a sand-filling mechanism. In use, the device is moved to one of the sample points, the drilling mechanism drills a hole, and the sample from the hole opening is collected for subsequent analysis. Moving the device positions the sand-filling mechanism above the hole opening, allowing sand particles from the sand storage container to fall into the sample hole. A weight sensor measures the weight change of the sand storage container, i.e., the weight of the sand particles falling into the sample hole, and calculates the volume of the sample hole. Combined with the sample information, the roadbed compaction degree at the sample point is calculated. The device can be moved to multiple sample points, multiple sets of data are measured, and the average result is taken as the overall roadbed compaction degree. The compaction testing device provided by this utility model has a drilling mechanism and a sand-filling mechanism that work in sequence, which reduces the time the sample is exposed to the air and improves the accuracy of the roadbed compaction test results. The walking mechanism facilitates the movement of the compaction testing device to multiple sample points, reduces testing time, improves testing efficiency, and reduces the workload of workers. Attached Figure Description

[0021] Figure 1 This is a side view of the compaction testing device provided in this embodiment of the utility model;

[0022] Figure 2 This is a front view of the compaction testing device provided in this embodiment of the utility model;

[0023] Figure 3 This is a top view of the compaction testing device provided in this embodiment of the utility model.

[0024] In the picture:

[0025] 1. Walking mechanism; 11. Frame; 12. Wheels; 13. Operating handle;

[0026] 2. Drilling mechanism; 21. Drive assembly; 211. First drive component; 212. Bearing plate; 213. Second drive component; 214. Reset component; 22. Drilling assembly; 221. Support rod; 222. Spiral blade; 223. Drill bit;

[0027] 3. Sand filling mechanism; 31. Sand storage component; 311. Storage tank; 312. Flow pipeline; 313. Switch valve; 32. Weight sensor;

[0028] 4. Stabilizing components. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0030] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0033] The purpose of this invention is to provide a compaction testing device that can shorten the compaction testing time of roadbed, improve the accuracy of roadbed compaction testing, and reduce the workload of testing personnel.

[0034] See Figures 1 to 3 The compaction testing device includes a walking mechanism 1, a drilling mechanism 2, and a sand filling mechanism 3. The walking mechanism 1 includes a frame 11 and walking wheels 12 connected to each other. The drilling mechanism 2 includes a drive assembly 21 and a drilling assembly 22. The drive assembly 21 is disposed on the frame 11, and the drilling assembly 22 is connected to the output end of the drive assembly 21. The drive assembly 21 can drive the drilling assembly 22 to perform drilling operations. The sand filling mechanism 3 includes a sand storage component 31 and a weight sensor 32. The sand storage component 31 is disposed on the frame 11, and the weight sensor 32 is disposed between the sand storage component 31 and the frame 11, and can measure the weight of the sand storage component 31.

[0035] The compaction degree testing device provided by this utility model has a traveling mechanism 1 that allows the device to move quickly on the roadbed, reducing the time spent traveling between different sample points and improving testing efficiency. The device includes a drilling mechanism 2 and a sand-filling mechanism 3. In use, the device is moved to one of the sample points, the drilling mechanism 2 drills a hole, and after drilling, the sample at the hole opening is collected for subsequent analysis. Moving the device positions the sand-filling mechanism 3 above the hole opening, allowing sand particles from the sand storage component 31 to fall into the sample hole. A weight sensor 32 measures the weight change of the sand storage component 31, i.e., the weight of the sand particles falling into the sample hole, and calculates the volume of the sample hole. Combined with the sample information, the roadbed compaction degree at the sample point is calculated. The device can be moved to multiple sample points, multiple sets of data are measured, and the average result is taken as the overall roadbed compaction degree. The compaction testing device provided by this utility model has a drilling mechanism 2 and a sand-filling mechanism 3 working in sequence, which reduces the time the sample is exposed to the air and improves the accuracy of the roadbed compaction test results. The walking mechanism 1 facilitates the movement of the compaction testing device to multiple sample points, reduces testing time, improves testing efficiency, and reduces the workload of workers.

[0036] The frame 11 is used to support the drilling mechanism 2 and the sand filling mechanism 3. The frame 11 is designed according to the usage requirements. In this embodiment, the shape of the frame 11 is not specifically limited.

[0037] The drive assembly 21 drives the drilling assembly 22 to perform drilling operations. For example, the drive assembly 21 includes a first drive member 211, a support plate 212, and a second drive member 213. The first drive member 211 is disposed on the frame 11, and the support plate 212 is disposed at the output end of the first drive member 211. The first drive member 211 can drive the support plate 212 to move linearly. The second drive member 213 is disposed on the support plate 212, and the drilling assembly 22 is disposed at the output end of the second drive member 213. The second drive member 213 can drive the drilling assembly 22 to rotate around its own axis, which facilitates drilling operations.

[0038] In this embodiment, when the walking mechanism 1 is placed on the roadbed surface, the first driving member 211 can drive the bearing plate 212 to move perpendicular to the roadbed surface, and the second driving member 213 can drive the drilling assembly 22 to rotate around its own axis to drill holes in the roadbed surface.

[0039] A support frame is provided on the frame 11. The support frame surrounds the second drive member 213 and the bearing plate 212. The top of the support frame is fixed with the fixed end of the first drive member 211. The top of the support frame is provided with a first guide hole for the output end of the first drive member 211 to pass through, which plays a guiding role and ensures that the first drive member 211 can drive the bearing plate 212 to move linearly.

[0040] The shape of the support plate 212 can be designed according to the usage requirements, and this embodiment does not specifically limit the shape of the support plate 212. The support plate 212 is provided with a mounting groove. The output end of the first driving member 211 is inserted into the mounting groove to fix the first driving member 211 and the support plate 212, so that the first driving member 211 can drive the support plate 212 to move.

[0041] In this embodiment, two first driving members 211 are provided, and the two first driving members 211 are symmetrically arranged at both ends of the support plate 212. The two second driving members 213 have the same stroke, which avoids the support plate 212 from tilting during movement and improves stability.

[0042] In other embodiments, three or more first driving members 211 may be provided, and multiple first driving members 211 are arranged circumferentially around the drilling assembly 22 on the support plate 212.

[0043] The first driving component 211 can be an existing electric push rod. The push rod is the output end, which is fixedly connected to the bearing plate 212, and the base is the fixed end, which is fixed to the support frame.

[0044] The second drive component 213 is located at the center of the support plate 212, and the drilling assembly 22 passes through the support plate 212 and is connected to the output end of the second drive component 213. The second drive component 213 can be fixed to the support plate 212 by a flange and bolts to ensure that the second drive component 213 and the support plate 212 move synchronously, thereby driving the drilling assembly 22 to move and perform drilling operations.

[0045] The drilling assembly 22 includes a support rod 221 and a spiral blade 222. The spiral blade 222 is fixedly connected to the support rod 221 and extends along the axial direction of the support rod 221. One end of the support rod 221 is connected to the second drive member 213, and the other end has a drill bit 223. The drill bit 223 can improve the efficiency of drilling operations, and the spiral blade 222 can discharge soil samples from the drill hole, thereby improving drilling efficiency.

[0046] The drill bit 223 can be conical or twisted. In this embodiment, the drill bit 223 is conical, which makes it easier to drill into the roadbed.

[0047] The second drive component 213 can be an existing motor. The output end of the second drive component 213 and the support rod 221 are connected by a coupling, which is convenient.

[0048] To improve the movement stability of the support plate 212, in this embodiment, the drive assembly 21 further includes a reset member 214, which is disposed between the support plate 212 and the frame 11. The reset member 214 can drive the support plate 212 to stop in the initial position. When the first drive member 211 drives the support plate 212 to move for drilling, the reset member 214 is compressed by force.

[0049] Specifically, the bearing plate 212 is also provided with a second guide hole, and a guide rod is provided in the second guide hole. The guide rod is fixedly connected to the frame 11. A reset member 214 is provided on the outer sleeve of the guide rod. The two ends of the reset member 214 are respectively connected to the frame 11 and the bearing plate 212. The reset member 214 also has a buffering effect on the bearing plate 212, preventing the bearing plate 212 from tilting and improving the movement stability of the bearing plate 212.

[0050] For example, multiple reset members 214 are provided, and the multiple reset members 214 are evenly distributed around the circumference of the drilling assembly 22 to further improve the movement stability of the support plate 212, ensure the vertical movement of the drilling assembly 22, and improve drilling efficiency. The number of second guide holes, guide rods and reset members are correspondingly set.

[0051] In this embodiment, the reset member 214 can be an existing spring, which is readily available. In other embodiments, the reset member 214 can also be elastic rubber.

[0052] The sand storage unit 31 is used to store sand particles. In this embodiment, the sand storage unit 31 includes a storage tank 311, a flow pipe 312, and a switch valve 313. The storage tank 311 is disposed on the frame 11, and a weight sensor 32 is disposed between the storage tank 311 and the frame 11. The flow pipe 312 is connected to the storage tank 311, and the switch valve 313 is disposed on the flow pipe 312. The switch valve 313, disposed on the flow pipe 312, can selectively open and close the flow pipe 312. The weight sensor 32, disposed between the storage tank 311 and the frame 11, can measure the weight change of the storage tank 311 and thus calculate the weight of the sand particles flowing out of the storage tank 311.

[0053] The shape of the storage tank 311 can be cylindrical or cuboid. This embodiment does not specifically limit the shape of the storage tank 311.

[0054] The weight sensor 32 can be either a pressure sensor or a tension sensor. When a pressure sensor is used, the weight sensor 32 is located at the bottom of the storage tank 311, and the storage tank 311 and the sand particles inside it exert pressure on the weight sensor 32. When a tension sensor is used, the weight sensor 32 is located at the top of the storage tank 311, and the storage tank 311 and the sand particles inside it pull the weight sensor 32 downward.

[0055] The switching valve 313 can be a manual valve or a solenoid valve. In this embodiment, the switching valve 313 is a solenoid valve. The solenoid valve is electrically connected to the controller. The controller sends a signal to the solenoid valve to control the opening and closing of the solenoid valve, reducing manual operation, making the control more precise, and improving the detection efficiency.

[0056] To improve the stability of the compaction degree testing device, in this embodiment, the compaction degree testing device also includes a stabilizing component 4, which is adjustablely connected to the frame 11 and can support the supporting surface. After the stabilizing component 4 supports the supporting surface, it increases the contact area between the compaction degree testing device and the supporting surface, thereby increasing stability. The supporting surface is the roadbed surface.

[0057] In this embodiment, the stabilizer 4 includes a connecting rod and a support plate. The connecting rod is slidably connected to the frame 11 and can be fixed by the existing set screw mechanism. When the connecting rod slides downward, it can drive the support plate to move downward until it abuts the support surface. When the connecting rod slides upward, it can drive the support plate to move upward away from the support surface, which facilitates the movement of the compaction detection device on the support surface.

[0058] In other embodiments, the stabilizer 4 includes a telescopic rod and a support block. The telescopic rod is fixedly connected to the frame 11, and the support block is fixedly connected to the bottom end of the telescopic rod. When the telescopic rod extends, it can drive the support block to move downward until it abuts against the support surface. When the telescopic rod shortens, it can drive the support block to move upward away from the support surface, which facilitates the movement of the compaction detection device on the support surface.

[0059] More specifically, there are two stabilizers 4, which are respectively located on both sides of the frame 11 along the width direction of the frame 11 to further improve the support capacity.

[0060] Along the length of the frame 11, the stabilizer 4 is located between the drilling mechanism 2 and the sand filling mechanism 3, which can balance the weight of the drilling mechanism 2 and the sand filling mechanism 3 and improve the stability of the compaction detection device.

[0061] The traveling wheel 12 rolls on the support surface, which facilitates the compaction degree detection device to move on the support surface. In this embodiment, the traveling wheel 12 includes a support wheel and a swivel wheel. The support wheel has a supporting function, and the swivel wheel provides a steering function, thereby improving the flexibility of the compaction degree detection device to move on the support surface.

[0062] For example, two support wheels and two swivel wheels are provided. Along the width direction of the frame 11, the two support wheels are located on both sides of the frame 11, and the two swivel wheels are located on both sides of the frame 11. Along the length direction of the frame 11, the support wheels are located at the end of the frame 11 near the drilling mechanism 2, and the swivel wheels are located at the end of the frame 11 near the sand filling mechanism 3. The four traveling wheels 12 are arranged in a rectangular array, which can improve the stability of the compaction detection device traveling on the support surface.

[0063] To improve the ease of operating the compaction testing device, in this embodiment, the walking mechanism 1 also includes an operating handle 13, which is fixedly connected to the frame 11. The operating handle 13 is easy for the testing personnel to hold and for the compaction testing device to be moved.

[0064] Specifically, the operating handle 13 is located at the end of the frame 11 near the caster wheel, which facilitates driving the caster wheel to turn and improves the flexibility of the compaction testing device when it is in motion.

[0065] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A compactness detection device, characterized by, The utility model relates to a sand compaction device and a sand compaction method. The sand compaction device comprises a walking mechanism (1), a drilling mechanism (2) and a sand filling mechanism (3). The walking mechanism (1) comprises a vehicle frame (11) and a walking wheel (12) which are connected with each other. The drilling mechanism (2) comprises a driving assembly (21) and a drilling assembly (22).

2. The compactness detection device according to claim 1, characterized in that The driving assembly (21) is arranged on the vehicle frame (11).

3. The compactness detection device according to claim 2, characterized in that The drilling assembly (22) is connected to an output end of the driving assembly (21).

4. The compactness detection device according to claim 2, characterized in that The driving assembly (21) can drive the drilling assembly (22) to perform drilling operation.

5. The compactness detection device according to claim 4, characterized in that The sand filling mechanism (3) comprises a sand storage part (31) and a weight sensor (32).

6. The compactness detection device according to claim 1, characterized in that The sand storage part (31) is arranged on the vehicle frame (11).

7. The compactness detection device according to claim 1, characterized in that The weight sensor (32) is arranged between the sand storage part (31) and the vehicle frame (11) and can measure the weight of the sand storage part (31).

8. The compactness detection device according to claim 7, characterized in that The driving assembly (21) comprises a first driving part (211), a bearing plate (212) and a second driving part (213).

9. The compactness detection device according to claim 1, characterized in that, The first driving part (211) is arranged on the vehicle frame (11). The bearing plate (212) is arranged at an output end of the first driving part (211). The first driving part (211) can drive the bearing plate (212) to move linearly. The second driving part (213) is arranged on the bearing plate (212). The drilling assembly (22) is arranged at an output end of the second driving part (213). The second driving part (213) can drive the drilling assembly (22) to rotate around an axis thereof. The drilling assembly (22) comprises a support rod (221) and a helical blade (222). The helical blade (222) is fixedly connected to the support rod (221) and extends along an axial direction of the support rod (221). One end of the support rod (221) is in transmission connection with the second driving part (213). The other end of the support rod (221) is provided with a drill bit (223). The driving assembly (21) further comprises a reset part (214). The reset part (214) is arranged between the bearing plate (212) and the vehicle frame (11). The reset part (214) can drive the bearing plate (212) to stop at an initial position. A plurality of reset parts (214) are arranged around a circumferential direction of the drilling assembly (22). The sand storage part (31) comprises a storage tank (311), a flow pipeline (312) and an on-off valve (313). The storage tank (311) is arranged on the vehicle frame (11). The weight sensor (32) is arranged between the storage tank (311) and the vehicle frame (11). The flow pipeline (312) is connected to the storage tank (311). The on-off valve (313) is arranged on the flow pipeline (312). The sand compaction device further comprises a stabilizing part (4). The stabilizing part (4) is adjustably connected to the vehicle frame (11) and can support a supporting surface. The stabilizing part (4) is located between the drilling mechanism (2) and the sand filling mechanism (3). The walking wheel (12) comprises a supporting wheel and a universal wheel.

10. The compactness detection device according to any one of claims 1 to 9, characterized in that The walking mechanism (1) further comprises an operating handle (13) fixedly connected to the vehicle frame (11).

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