Roadbed compactness detection equipment

By using a servo motor-driven sliding frame and scraper system, combined with a lead screw, bevel gear, and locking mechanism, the automatic positioning and drilling of the roadbed compaction testing equipment has been achieved. This solves the problems of long time consumption and large errors associated with manual positioning and drilling, and improves the accuracy and efficiency of the test.

CN223824141UActive Publication Date: 2026-01-23SHENZHEN ZHONGYE TRAFFIC ENG CO LTD
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Patent Information

Application Number
CN202520205938.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-08
Publication Date
2026-01-23
Estimated Expiration
2035-02-08

AI Technical Summary

Technical Problem

Existing roadbed compaction testing equipment requires manual positioning and drawing when drilling large-diameter holes, which is time-consuming and prone to errors.

Method used

The sliding frame and scraper system driven by a servo motor, combined with a lead screw, bevel gear and clamping mechanism, realize automatic positioning and drawing of the drill hole size, reducing human error.

Benefits of technology

It improves drilling accuracy and efficiency, reduces drawing time and errors, and ensures the accuracy of testing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of roadbed compactness detection equipment, in particular to roadbed compactness detection equipment which comprises a bottom plate, a supporting rod, a sliding frame, a driving motor and a screw rod, the supporting rod is rotatably arranged on the bottom plate, the driving motor is installed on the supporting rod, and the screw rod is installed on an output shaft of the driving motor through a coupler. And a sliding frame is arranged on the screw rod in a threaded manner. A first lead screw is rotated, a first sliding plate on the first lead screw drives a scraper on the first sliding plate to move, the first sliding plate can drive an indicator plate to move on a scale plate when moving, a worker adjusts the first sliding plate to a designated position according to the needed drilling size, and then a servo motor is started; an output shaft of the servo motor drives a connecting frame and a part on a rotating disc to rotate, so that a scraper I on a sliding plate I rotates on the ground, the specific size of a required drill hole is automatically drawn, personal errors are reduced, the testing precision is ensured, and the drawing time can be shortened.
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Description

TECHNICAL FIELD

[0001] The utility model relates to roadbed compactness detection equipment technical field especially relates to a roadbed compactness detection equipment. BACKGROUND

[0002] Roadbed compactness detection is an important step to ensure the quality of roadbed in road engineering, and the sand filling method is also a commonly used method for determining soil density on site. In this process, a sand cone with known weight and volume is used to fill the excavated small hole, so as to calculate the density of soil.

[0003] The patent with the authorization announcement number CN222206274U discloses a highway roadbed compactness detection equipment. It comprises a base and a first support box fixedly connected to the top of the base. The back of the first support box is provided with a lifting platform. The bottom of the lifting platform is provided with a sand filling mechanism. The inside of the first support box is provided with a lifting mechanism for lifting the lifting platform. The sand filling mechanism comprises a driving motor fixedly installed on the top of the lifting platform. The output shaft of the driving motor is fixedly connected with an installation table extending to the bottom of the lifting platform. When using the patent for detection, the drilling position is positioned manually, the drilling size is drawn on the ground using tools, and then the ground is drilled using a drilling cylinder. After drilling is completed, subsequent operation is carried out by the sand filling method. However, the drilling cylinder of the above-mentioned existing patent is of a single size. When a large-diameter drilling hole needs to be drilled, manual positioning and drawing are required to ensure accuracy. However, the manual positioning and drawing process is time-consuming, and manual measurement and marking are prone to errors, which may lead to errors in measured values.

[0004] Therefore, it is necessary to provide a roadbed compactness detection equipment capable of automatically positioning and automatically drawing the required drilling size. UTILITY MODEL CONTENTS

[0005] In order to overcome the above-mentioned shortcomings of the existing patent, that is, the drilling cylinder is of a single size, manual positioning and drawing are required when a large-diameter drilling hole needs to be drilled to ensure accuracy, but the manual positioning and drawing process is time-consuming, and manual measurement and marking are prone to errors, which may lead to errors in measured values, the utility model provides a roadbed compactness detection equipment capable of automatically positioning and automatically drawing the required drilling size.

[0006] To achieve the above problems, the utility model discloses the following technical scheme: a kind of roadbed compactness detection equipment, including bottom plate, support rod, sliding frame, drive motor, screw rod and support ring, support rod is rotatably arranged on bottom plate, drive motor is installed on support rod, the output shaft of drive motor is installed with screw rod by shaft coupling, screw rod is threadedly arranged with sliding frame, sliding frame is fixedly connected with support ring, further including servo motor, connecting frame, rotating disc, drill bit, scraper one, sliding plate one, screw rod one, scale plate and indicating plate, servo motor is installed on sliding frame, the output shaft of servo motor is installed with connecting frame, connecting frame is fixedly connected with rotating disc, rotating disc slides in support ring, rotating disc is fixedly connected with drill bit, screw rod one is rotatably arranged on connecting frame, screw rod one is threadedly arranged with sliding plate one, and sliding plate one is fixedly connected with scraper one, and scraper one is located in front of drill bit, four scale plates are fixedly connected on rotating disc, and sliding plate one slides in scale plate located in front of drill bit, two indicating plates are fixedly connected on sliding plate, and indicating plate is in contact with scale plate.

[0007] Optionally, further including screw rod two, bevel gear, scraper two and sliding plate two, three screw rod two is rotatably arranged on connecting frame, and the bevel gear is fixedly connected on three screw rod two and screw rod one, four bevel gears are located in connecting frame and are engaged with each other, and sliding plate two is threadedly arranged on three screw rod two, and sliding plate two slides in similar scale plate, and three sliding plates two and one sliding plate one slide on rotating disc, and the same two indicating plates are fixedly connected on three sliding plates, and two indicating plates slide on similar scale plate, and scraper two is fixedly connected on three sliding plates.

[0008] Optionally, further including gear ring, clamping plate, pull rod and return spring, gear ring is fixedly connected on support rod, pull rod is slidably arranged on bottom plate, pull rod is located behind support rod, clamping plate is fixedly connected on pull rod, clamping plate is clamped into gear ring, and return spring is connected between clamping plate and bottom plate.

[0009] Optionally, further including limiting frame, fixing nail and adjusting rod, adjusting rod is threadedly arranged on bottom plate, adjusting rod is fixedly connected with limiting frame, and multiple fixing nails are fixedly connected on limiting frame.

[0010] Optionally, further including protective shell, protective shell is fixedly connected on bottom plate, and gear ring is located in protective shell.

[0011] Optionally, further including anti-skid sleeve, anti-skid sleeve is sleeved on adjusting rod.

[0012] Compared with the prior art, the utility model have following technical effects: 1, through the rotation lead screw one, make the sliding plate one on lead screw one drive the scraper on self move, the sliding plate one will drive the indicating board on the scale plate move when moving, and staff adjusts the sliding plate one to the specified position according to the required drilling size, then starts servo motor, and the output shaft of servo motor drives the rotation of the components on the connecting frame and rotating disc, so that the scraper one on the sliding plate one rotates on the ground, so that the required drilling size is automatically drawn, human error is reduced, test accuracy is guaranteed, and the drawing time can be reduced.

[0013] 2, through the intermeshing of four bevel gears, make a lead screw one and three lead screw two rotate, make a sliding plate one and three sliding plate two on it move inward, simultaneously, the sliding plate one drives the scraper one to move, and the sliding plate two drives the scraper two to move, so that one scraper one and three scraper two draw the drilling, so that the drawing distance can be reduced, thereby improving the accuracy of drawing and reducing errors.

[0014] 3, by pulling the pull rod upward to drive the clamping plate to move upward, then rotating the support rod to adjust to the appropriate angle, loosening the pull rod, so that the return spring drives the clamping plate and the pull rod to move downward, so that the clamping plate is clamped back into the gear ring, so that the angle of the support rod is fixed, and the components on the support rod can be turned out of the test area, thereby facilitating the detection operation of the staff.

[0015] 4, by rotating the hand wheel on the adjusting rod, the adjusting rod drives the limiting frame and the fixing nail to move downward and insert into the roadbed, thereby avoiding equipment deviation during drawing, thereby further ensuring the drawing accuracy. DRAWINGS

[0016] Figure 1 It is the three-dimensional structure schematic view of the utility model.

[0017] Figure 2 It is the three-dimensional sectional view of the limiting frame, the fixing nail and the adjusting rod of the utility model.

[0018] Figure 3 It is the three-dimensional sectional view of the lead screw one, the driving motor and the screw rod of the utility model.

[0019] Figure 4 It is the three-dimensional structure schematic view of the gear ring, the clamping plate and the pull rod of the utility model.

[0020] Figure 5 It is the three-dimensional sectional view of the bevel gear, the scraper two and the sliding plate two of the utility model.

[0021] The components in the attached diagram are labeled as follows: 1-Base plate, 2-Support rod, 3-Sliding frame, 4-Support ring, 5-Servo motor, 6-Connecting frame, 7-Rotating disk, 8-Drill bit, 9-Scraper 1, 10-Sliding plate 1, 11-Lead screw 1, 12-Drive motor, 13-Screw, 14-Lead screw 2, 15-Bevel gear, 16-Scraper 2, 17-Sliding plate 2, 18-Scale plate, 19-Indicator plate, 20-Gear ring, 21-Positioning plate, 22-Pull rod, 23-Return spring, 24-Limiting frame, 25-Fixing pin, 26-Adjusting rod, 27-Protective shell, 28-Anti-slip sleeve. Detailed Implementation

[0022] 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.

[0023] Example 1: A roadbed compaction testing device, see reference Figures 1-3 and Figure 5 As shown, the system includes a base plate 1, a support rod 2, a sliding frame 3, a drive motor 12, a screw 13, and a support ring 4. The support rod 2 is rotatably mounted on the rear of the base plate 1. The drive motor 12 is bolted to the upper part of the support rod 2. The output shaft of the drive motor 12 is connected to the screw 13 via a coupling. The sliding frame 3 is threaded onto the screw 13. The support ring 4 is welded to the front of the sliding frame 3. The system also includes a servo motor 5, a connecting frame 6, a rotating disk 7, a drill bit 8, a scraper 9, a sliding plate 10, a lead screw 11, a scale plate 18, and an indicator plate 19. The servo motor 5 is bolted to the front of the sliding frame 3. A connecting frame 6 is installed on the output shaft of motor 5. A rotating disk 7 is welded to the bottom of the connecting frame 6. The rotating disk 7 slides within the support ring 4. A drill bit 8 is fixedly connected to the bottom of the rotating disk 7. A lead screw 11 is rotatably mounted at the front of the connecting frame 6. A sliding plate 10 is threaded onto the lead screw 11. A scraper 9 is welded to the bottom of the sliding plate 10. The scraper 9 is located in front of the drill bit 8. Four scale plates 18 are evenly spaced and fixedly connected to the top of the rotating disk 7. The sliding plate 10 slides within the scale plates 18 located in front of the drill bit 8. Two indicator plates 19 are welded to the upper part of the sliding plate. The indicator plates 19 are in contact with the scale plates 18.

[0024] Before drilling the roadbed, first start the drive motor 12, causing the output shaft of the drive motor 12 to drive the screw 13 to rotate, causing the sliding frame 3 and the components above it to move downwards. When the drill bit 8 and scraper 9 contact the ground, turn off the drive motor 12. By rotating the lead screw 11, the sliding plate 10 on the lead screw 11 moves its scraper. When the sliding plate 10 moves, it will cause the indicator plate 19 to move on the scale plate 18. The operator then adjusts the sliding plate 10 to the designated position according to the required drilling size. Then, start the servo motor 5. The output shaft of the servo motor 5 drives the components on the connecting frame 6 and the rotating disk 7 to rotate, causing the scraper 9 on the sliding plate 10 to rotate on the ground. This automatically draws the specific size of the required drilling hole, reducing human error, ensuring test accuracy, and reducing drawing time. After the positioning and drawing are completed, turn off the servo motor 5 and control the output shaft of the drive motor 12 to reverse, causing the screw 13 to reverse, causing the sliding frame 3 to move upwards and reset its components. Finally, the subsequent operations are carried out according to the sand filling method.

[0025] Example 2: Based on Example 1, refer to Figure 3 and Figure 5 As shown, it also includes a second lead screw 14, a bevel gear 15, a second scraper 16, and a second sliding plate 17. Three second lead screws 14 are rotatably arranged on the connecting frame 6. The three second lead screws 14 and one first lead screw 11 are distributed around the connecting frame 6. The ends of the three second lead screws 14 and the one first lead screw 11 are all fixedly connected to bevel gears 15. The four bevel gears 15 are located inside the connecting frame 6 and mesh with each other. The three second lead screws 14 are all threadedly provided with a second sliding plate 17. The second sliding plate 17 slides in the adjacent scale plate 18. The three second sliding plates 17 and one first sliding plate 10 all slide on the rotating disk 7. The three sliding plates are also provided with two identical indicator plates 19 by welding. The two indicator plates 19 slide on the adjacent scale plate 18. The bottom of the three sliding plates is fixedly connected to a second scraper 16.

[0026] When the lead screw 11 is rotated, the lead screw 11 drives the bevel gear 15 on it to rotate. Through the meshing of the four bevel gears 15, the lead screw 11 and the three lead screws 14 rotate, causing the sliding plate 10 and the three sliding plates 17 on it to move inward. At the same time, the sliding plate 10 drives the scraper 9 to move, and the sliding plate 17 drives the scraper 16 to move. This allows the scraper 9 and the three scrapers 16 to draw the drill hole, thereby reducing the drawing distance, improving the drawing accuracy, and reducing errors.

[0027] See Figures 2-4As shown, it also includes a gear ring 20, a locking plate 21, a pull rod 22, and a return spring 23. The gear ring 20 is fixedly connected to the bottom end of the support rod 2. The pull rod 22 is slidably provided at the rear of the base plate 1. The pull rod 22 is located behind the support rod 2. The locking plate 21 is fixedly connected to the bottom end of the pull rod 22. The locking plate 21 is inserted into the gear ring 20. The return spring 23 is connected between the locking plate 21 and the base plate 1.

[0028] See Figure 1 As shown, it also includes a protective shell 27. The protective shell 27 is installed on the rear part of the base plate 1 by welding, and the toothed ring 20 is located inside the protective shell 27.

[0029] When the sand-filling method is required, pulling the lever 22 upwards moves the locking plate 21 upwards, causing the locking plate 21 to disengage from the gear ring 20. The return spring 23 is then compressed. Then, the support rod 2 is rotated and adjusted to a suitable angle. The lever 22 is then released, causing the return spring 23 to move the locking plate 21 and the lever 22 downwards, so that the locking plate 21 is locked back into the gear ring 20. This fixes the angle of the support rod 2, allowing the components on the support rod 2 to be rotated out of the test area, making it easier for the staff to perform the testing operation. After the test is completed, the support rod 2 is rotated back to its original position. The protective shell 27 is used to protect the gear ring 20.

[0030] See Figure 2 As shown, it also includes a limit frame 24, fixing nails 25 and an adjusting rod 26. The adjusting rod 26 is threadedly provided at the front of the base plate 1. The adjusting rod 26 consists of a threaded rod and a handwheel. The bottom of the adjusting rod 26 is fixedly connected to the limit frame 24. Four fixing nails 25 are evenly spaced and fixedly connected to the limit frame 24.

[0031] See Figure 1 and Figure 2 As shown, it also includes an anti-slip sleeve 28, which is fitted onto the handwheel of the adjusting rod 26.

[0032] Before drawing, the handwheel on the adjusting rod 26 is rotated, causing the adjusting rod 26 to move the limiting frame 24 and the fixing nail 25 downwards and insert them into the roadbed. This prevents the equipment from shifting during drawing, thus ensuring the drawing accuracy. After the inspection is completed, the adjusting rod 26 is reversed, causing the fixing nail 25 to disengage from the roadbed. The anti-slip sleeve 28 increases the friction between the worker's hand and the handwheel on the adjusting rod 26, making it easier for the worker to rotate the adjusting rod 26.

[0033] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A roadbed compaction testing device, comprising a base plate (1), a support rod (2), a sliding frame (3), a drive motor (12), a screw (13), and a support ring (4), wherein the support rod (2) is rotatably mounted on the base plate (1), the drive motor (12) is mounted on the support rod (2), the output shaft of the drive motor (12) is mounted on the screw (13) via a coupling, the sliding frame (3) is threaded onto the screw (13), and the support ring (4) is fixedly connected to the sliding frame (3), characterized in that, It also includes a servo motor (5), a connecting frame (6), a rotating disk (7), a drill bit (8), a scraper (9), a sliding plate (10), a lead screw (11), a scale plate (18), and an indicator plate (19). The servo motor (5) is mounted on the sliding frame (3), and the connecting frame (6) is mounted on the output shaft of the servo motor (5). The rotating disk (7) is fixedly connected to the connecting frame (6). The rotating disk (7) slides within the support ring (4). The drill bit (8) is fixedly connected to the rotating disk (7). A lead screw (11) is rotatably mounted on the frame (6). A sliding plate (10) is threaded onto the lead screw (11). A scraper (9) is fixedly connected to the sliding plate (10). The scraper (9) is located in front of the drill bit (8). Four scale plates (18) are fixedly connected to the rotating disk (7). The sliding plate (10) slides in the scale plate (18) located in front of the drill bit (8). Two indicator plates (19) are fixedly connected to the sliding plate. The indicator plates (19) are in contact with the scale plates (18).

2. A roadbed compaction testing device according to claim 1, characterized in that, It also includes a second lead screw (14), a bevel gear (15), a second scraper (16), and a second sliding plate (17). Three second lead screws (14) are rotatably arranged on the connecting frame (6). Bevel gears (15) are fixedly connected to the three second lead screws (14) and one first lead screw (11). The four bevel gears (15) are located in the connecting frame (6) and mesh with each other. The three second lead screws (14) are threadedly arranged with a second sliding plate (17). The second sliding plate (17) slides in the adjacent scale plate (18). The three second sliding plates (17) and one first sliding plate (10) slide on the rotating disk (7). Two identical indicator plates (19) are also fixedly connected to the three sliding plates, and the two indicator plates (19) slide on the adjacent scale plate (18). The second scraper (16) is fixedly connected to the three sliding plates.

3. A roadbed compaction testing device according to claim 2, characterized in that, It also includes a gear ring (20), a locking plate (21), a pull rod (22) and a return spring (23). The gear ring (20) is fixedly connected to the support rod (2), and the pull rod (22) is slidably installed on the base plate (1). The pull rod (22) is located behind the support rod (2), and the locking plate (21) is fixedly connected to the pull rod (22). The locking plate (21) is inserted into the gear ring (20), and the return spring (23) is connected between the locking plate (21) and the base plate (1).

4. A roadbed compaction testing device according to claim 3, characterized in that, It also includes a limit frame (24), fixing nails (25) and an adjusting rod (26). The adjusting rod (26) is threaded on the base plate (1). The limit frame (24) is fixedly connected to the adjusting rod (26). Multiple fixing nails (25) are fixedly connected to the limit frame (24).

5. A roadbed compaction testing device according to claim 4, characterized in that, It also includes a protective shell (27), which is fixed to the base plate (1), and the toothed ring (20) is located inside the protective shell (27).

6. A roadbed compaction testing device according to claim 5, characterized in that, It also includes an anti-slip sleeve (28), and the adjusting rod (26) is fitted with an anti-slip sleeve (28).

Citation Information

Patent Citations

  • Expressway roadbed compactness detection equipment

    CN222206274U