Asphalt mixture detection device

By using a servo motor to drive the screw and threaded connection, combined with an electric telescopic rod and a pressure hydraulic rod, the position adjustment of the asphalt mixture testing device was realized, solving the problem of insufficient test data samples in existing devices and improving the accuracy of rut data analysis.

CN224231778UActive Publication Date: 2026-05-12HUNAN JUNJIA PAVEMENT MATERIAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUNAN JUNJIA PAVEMENT MATERIAL CO LTD
Filing Date
2025-04-22
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing asphalt mixture testing devices are not easy to adjust, making it difficult for test wheels to test different locations of asphalt mixtures, resulting in a small number of test data samples and poor accuracy in rut data analysis.

Method used

A servo motor drives a screw and a threaded connection, combined with an electric telescopic rod and a pressure hydraulic rod, to move the pallet back and forth, thereby adjusting the position of the test wheel on the asphalt mixture and increasing the number of test data samples.

Benefits of technology

It improved the accuracy of data collection for asphalt mixture testing and enhanced the accuracy of rut data analysis.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224231778U_ABST
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Abstract

The utility model discloses an asphalt mixture detection device which comprises a box body, a box door is installed on the front side wall of the box body, a pair of supporting legs is fixedly welded to each of the two side walls of the box body, a base is fixedly welded to the bottom ends of the two pairs of supporting legs, a through groove is formed in the base, two fixing rods are fixedly welded to the interior of the through groove, and the two fixing rods are fixedly welded to the interior of the through groove. Adjusting seats are slidably connected to the two fixing rods, and a first servo motor is fixedly mounted on the front side wall of the base. In the detection process, the first servo motor can drive the first screw rod to rotate, so that the adjusting seat moves on the two fixing rods, and when the adjusting seat moves, the supporting plate can be driven by the electric telescopic rod to move back and forth in the inner cavity of the box body. Therefore, the position of the asphalt mixture placed on the supporting plate can be adjusted front and back, the test wheel can conveniently detect different positions of the asphalt mixture, data samples collected through detection are increased, and the rut data analysis accuracy is improved.
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Description

Technical Field

[0001] This utility model relates to the technical field of asphalt testing equipment, specifically an asphalt mixture testing device. Background Technology

[0002] Asphalt concrete, commonly known as asphalt concrete, is a mixture made by artificially selecting mineral aggregates with a certain gradation, such as crushed stone or crushed gravel, stone chips or sand, mineral powder, etc., and mixing them with a certain proportion of road asphalt materials under strict control conditions. In order to determine the quality of asphalt mixtures, it is necessary to test them, including rutting tests.

[0003] In the prior art, the authorized patent with publication number CN219890898U discloses an asphalt mixture testing device. Addressing the problems of inconvenient loading and unloading of asphalt mixtures, requiring overall handling, and the large weight of the mixture leading to high labor costs and potential hazards, this invention proposes the following solution: It includes a frame, with a mounting box fixedly connected to the top of the frame. The mounting box has a mounting opening at its bottom, and a frame for placing the asphalt mixture is fixedly connected inside the mounting opening. A first cylinder is fixedly connected to the bottom surface of the frame. In this invention, after the test is completed, the asphalt mixture can be lowered by moving the base plate downwards, and then the base plate tilts to discharge the mixture, reducing the difficulty of handling. It also facilitates adjustment of the downward pressure of the test wheel, improving the flexibility of product use. Furthermore, it allows for changing the height of the test wheel, further enhancing the flexibility of product use.

[0004] However, the above-mentioned technical solutions still have the following shortcomings in use: the device is not convenient for adjusting the asphalt mixture, making it difficult for the test wheel to detect different locations of the asphalt mixture, resulting in a small number of data samples and poor accuracy in rutting data analysis. To address these issues, we propose an asphalt mixture testing device. Utility Model Content

[0005] The purpose of this invention is to provide an asphalt mixture testing device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an asphalt mixture testing device, comprising:

[0007] The enclosure is a rectangular cavity with openings on both the front and bottom sides. A door is installed on the front wall of the enclosure. A pair of support legs are fixedly welded to each of the two side walls of the enclosure. A base is fixedly welded to the bottom of each pair of support legs. A through groove is opened on the base. Two fixed rods are fixedly welded to the through groove. An adjusting seat is slidably connected to the two fixed rods. A first servo motor is fixedly installed on the front wall of the base. A first screw is driven to the output end of the first servo motor. The first screw is rotatably installed in the middle of the through groove. The adjusting seat is threadedly connected to the first screw through a threaded hole. Two electric telescopic rods are fixedly installed on the top wall of the adjusting seat. A support plate is fixedly installed at the top of the two electric telescopic rods. A rectangular frame is provided on the support plate.

[0008] Preferably, a second servo motor is fixedly installed on one side wall of the housing. The output end of the second servo motor is drivenly connected to a second screw. The second screw is rotatably installed in the inner cavity of the housing. A guide rod is provided on the rear side of the second screw. The guide rod is fixedly welded in the inner cavity of the housing. A movable seat is threadedly connected to the second screw. The movable seat is slidably connected to the guide rod through an opening. A pressure hydraulic rod is fixedly installed on the movable seat. A test wheel is installed at the bottom end of the pressure hydraulic rod.

[0009] Preferably, a controller is fixedly installed on one side wall of the housing, and the controller is electrically connected to the first servo motor, the electric telescopic rod, the second servo motor and the pressure hydraulic rod through wires.

[0010] Preferably, a transparent observation window is fixedly installed on the box door.

[0011] Preferably, the rectangular frame is movably inserted into the top of the tray.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] In the testing process, the first servo motor drives the first screw to rotate, allowing the adjusting seat to move on two fixed rods. When the adjusting seat moves, it can drive the pallet to move back and forth in the inner cavity of the box via an electric telescopic rod, thereby adjusting the position of the asphalt mixture placed on the pallet. This facilitates the test wheel to test different positions of the asphalt mixture, increases the number of data samples collected, and improves the accuracy of rut data analysis. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of an asphalt mixture testing device proposed in this utility model;

[0015] Figure 2This is a three-dimensional structural diagram of the internal structure of the box in the asphalt mixture testing device proposed in this utility model;

[0016] Figure 3 This is a three-dimensional structural diagram of the connection between the base and the adjustment seat in an asphalt mixture testing device proposed in this utility model.

[0017] In the diagram: 1. Box body; 2. Box door; 3. Support leg; 4. Base; 5. Through groove; 6. Fixing rod; 7. Adjusting seat; 8. First servo motor; 9. First screw; 10. Electric telescopic rod; 11. Support plate; 12. Rectangular frame; 13. Second servo motor; 14. Second screw; 15. Guide rod; 16. Moving seat; 17. Pressure hydraulic rod; 18. Test wheel; 19. Controller; 20. Transparent observation window. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1-3 This utility model provides a technical solution: an asphalt mixture testing device, comprising:

[0020] The box body 1 is a rectangular cavity with openings on both the front and bottom sides. A door 2 is installed on the front side wall of the box body 1. A pair of support legs 3 are fixedly welded to each of the two side walls of the box body 1. A base 4 is fixedly welded to the bottom of the two pairs of support legs 3. A through groove 5 is opened on the base 4. Two fixing rods 6 are fixedly welded in the through groove 5. An adjusting seat 7 is slidably connected to the two fixing rods 6. A first servo motor 8 is fixedly installed on the front side wall of the base 4. A first screw 9 is drivenly connected to the output end of the first servo motor 8. The first screw 9 is rotatably installed in the middle of the through groove 5. The adjusting seat 7 is threadedly connected to the first screw 9 through a screw hole. Two electric telescopic rods 10 are fixedly installed on the top wall of the adjusting seat 7. A support plate 11 is fixedly installed at the top of the two electric telescopic rods 10. A rectangular frame 12 is provided on the support plate 11.

[0021] A second servo motor 13 is fixedly installed on one side wall of the housing 1. The output end of the second servo motor 13 is connected to a second screw 14. The second screw 14 is rotatably installed in the inner cavity of the housing 1. A guide rod 15 is provided on the rear side of the second screw 14. The guide rod 15 is fixedly welded in the inner cavity of the housing 1. A movable seat 16 is threadedly connected to the second screw 14. The movable seat 16 is slidably connected to the guide rod 15 through an opening. A pressure hydraulic rod 17 is fixedly installed on the movable seat 16. A test wheel 18 is installed at the bottom end of the pressure hydraulic rod 17. The second servo motor 13 can drive the second screw 14 to rotate, so that the movable seat 16 moves under the guidance of the guide rod 15, thereby driving the test wheel 18 to roll on the asphalt mixture block for testing.

[0022] A controller 19 is fixedly installed on one side wall of the housing 1. The controller 19 is electrically connected to the first servo motor 8, the electric telescopic rod 10, the second servo motor 13, and the pressure hydraulic rod 17 via wires. The controller 19 is used to control the operation of the first servo motor 8, the electric telescopic rod 10, the second servo motor 13, and the pressure hydraulic rod 17.

[0023] A transparent observation window 20 is fixedly installed on the door 2, which allows for easy observation of the testing situation inside the box 1 at any time.

[0024] The rectangular frame 12 is movably inserted into the top of the pallet 11, which facilitates the assembly and disassembly of the rectangular frame 12, thereby making it easier to load and unload materials from the pallet 11.

[0025] Working principle: During the testing process, the first servo motor 8 drives the first screw 9 to rotate, allowing the adjusting seat 7 to move on the two fixed rods 6. When the adjusting seat 7 moves, it can drive the pallet 11 to move back and forth in the inner cavity of the box 1 via the electric telescopic rod 10, thereby realizing the back and forth position adjustment of the asphalt mixture placed on the pallet 11. This facilitates the test wheel 18 to detect different positions of the asphalt mixture, increases the number of data samples collected, and improves the accuracy of rut data analysis.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An asphalt mixture testing device, characterized in that, include: The box body (1) is a rectangular cavity with openings on both the front and bottom sides. A door (2) is installed on the front wall of the box body (1). A pair of support legs (3) are fixedly welded to both side walls of the box body (1). A base (4) is fixedly welded to the bottom of the two pairs of support legs (3). A through groove (5) is opened on the base (4). Two fixing rods (6) are fixedly welded in the through groove (5). An adjusting seat (7) is slidably connected to the two fixing rods (6). The base (4) A first servo motor (8) is fixedly installed on the front side wall. The output end of the first servo motor (8) is connected to a first screw (9). The first screw (9) is rotatably installed in the middle of the through groove (5). The adjustment seat (7) is threadedly connected to the first screw (9) through the screw hole. Two electric telescopic rods (10) are fixedly installed on the top wall of the adjustment seat (7). A support plate (11) is fixedly installed on the top of the two electric telescopic rods (10). A rectangular frame (12) is provided on the support plate (11).

2. The asphalt mixture testing device according to claim 1, characterized in that: A second servo motor (13) is fixedly installed on one side wall of the housing (1). The output end of the second servo motor (13) is connected to a second screw (14). The second screw (14) is rotatably installed in the inner cavity of the housing (1). A guide rod (15) is provided on the rear side of the second screw (14). The guide rod (15) is fixedly welded in the inner cavity of the housing (1). A movable seat (16) is threadedly connected to the second screw (14). The movable seat (16) is slidably connected to the guide rod (15) through an open through hole. A pressure hydraulic rod (17) is fixedly installed on the movable seat (16). A test wheel (18) is installed at the bottom end of the pressure hydraulic rod (17).

3. The asphalt mixture testing device according to claim 2, characterized in that: A controller (19) is fixedly installed on one side wall of the housing (1). The controller (19) is electrically connected to the first servo motor (8), the electric telescopic rod (10), the second servo motor (13), and the pressure hydraulic rod (17) via wires.

4. The asphalt mixture testing device according to claim 1, characterized in that: A transparent observation window (20) is fixedly installed on the box door (2).

5. The asphalt mixture testing device according to claim 1, characterized in that: The rectangular frame (12) is movably inserted into the top of the tray (11).