Anti-rutting testing device for asphalt mixture

Abstract

The utility model discloses an asphalt mixture anti-rut testing device in the technical field of asphalt mixture testing, which comprises a base, side frames are mounted on two sides of the top of the base, the asphalt mixture anti-rut testing device is reasonable in structure, and moving seats on a U-shaped frame are correspondingly arranged on the outer walls of two groups of rotating shafts through threaded holes in a threaded connection manner, so that the moving seats are convenient to move. The motor is fixedly connected with one set of rotating shafts, synchronous wheels on the two sets of rotating shafts are in transmission connection through a synchronous belt, so that the motor drives the two sets of rotating shafts to synchronously rotate, and the U-shaped frame can be driven and controlled to horizontally move left and right; the hydraulic cylinder drives the rut roller to perform pressure-applying rut-resisting treatment on the asphalt mixture block after the asphalt mixture block is placed, different vehicle pressures can be simulated during the period, and the rut roller is adjusted to perform rut-resisting testing treatment on the asphalt mixture block.

Description

Technical Field

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

[0002] Rutting tests on asphalt mixtures are conducted to evaluate their durability and load-bearing capacity. In these tests, vehicles traverse the asphalt pavement at specific speeds, and the depth and changes in rutting are observed and measured to assess pavement quality and durability. Currently, when using rutting resistance testing devices for asphalt mixtures, the application of varying pressures can cause substandard asphalt mixtures to fracture due to excessive pressure, making cleanup difficult. Furthermore, conducting rutting resistance tests under constant pressure reduces rigor and data accuracy, thus diminishing the effectiveness of the testing devices and directly impacting their testing efficiency and accuracy.

[0003] Therefore, it is necessary to develop a rutting resistance testing device for asphalt mixtures. Utility Model Content

[0004] The purpose of this invention is to provide an asphalt mixture rutting resistance testing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an asphalt mixture rutting resistance testing device, including a base, side frames installed on both sides of the top of the base, a bracket installed above the opposite side of the two sets of side frames, and a T-shaped guide groove opened on the lower surface of the bracket;

[0006] The bracket has a rotating shaft installed at both the lower front and rear ends, and a movable seat is installed on one side of the outer wall of the rotating shaft.

[0007] Preferably, a placement platform is installed at the top center of the base, and an asphalt mixture block is disposed inside the placement platform.

[0008] Preferably, the rotating shaft is rotatably connected to the side frame, one end of the rotating shaft is equipped with a synchronous pulley, a motor is installed on the upper part of one side outer wall of a set of side frames, and the output shaft of the motor is fixedly connected to the other end of the rotating shaft through a coupling.

[0009] Preferably, a threaded hole is provided at the center of the surface of the movable seat, the inner wall of the threaded hole is threadedly connected to the outer wall of the rotating shaft, and a T-shaped guide seat is provided on the top of the movable seat.

[0010] Preferably, the outer wall of the T-shaped guide seat is slidably connected to the inner wall of the T-shaped guide groove, and support rollers are rotatably connected to both sides of the bottom of the T-shaped guide seat.

[0011] Preferably, the bottom of the support roller is located on the inner bottom surface of the T-shaped guide groove, and a U-shaped frame is installed at the bottom of the movable seat.

[0012] Preferably, hydraulic cylinders are installed at both the front and rear ends of the inner bottom of the U-shaped frame, and rut rollers are rotatably connected to the output end of the hydraulic cylinders.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] By hollowing out the center of the placement platform on the base and placing the asphalt mixture block requiring rutting resistance test inside the placement platform, the debris generated during the subsequent rutting resistance test of the asphalt mixture block inside the placement platform can be collected by the hollow part of the placement platform, which is convenient for unified cleaning and minimizes the difficulty in cleaning up the debris generated after the asphalt mixture breaks.

[0015] By connecting the movable seats on the U-shaped frame to the outer walls of the two sets of rotating shafts via threaded holes, and fixing the motor to one set of rotating shafts, and using synchronous belts to drive the synchronous rotation of the two sets of rotating shafts via synchronous pulleys, the motor can drive the two sets of rotating shafts to rotate synchronously, thus controlling the U-shaped frame to move horizontally left and right. By installing two sets of hydraulic cylinders on the U-shaped frame and installing rutting rollers at the output ends of the hydraulic cylinders, the hydraulic cylinders drive the rutting rollers to apply pressure to the asphalt mixture blocks after placement, thus simulating different vehicle pressures and adjusting the rutting rollers to perform rutting resistance tests on the asphalt mixture blocks. This avoids situations where constant pressure testing cannot achieve the rigor of rutting resistance testing, effectively improving the use of the asphalt mixture rutting resistance testing device, and directly and effectively improving the testing efficiency and accuracy of the asphalt mixture rutting resistance testing device. Attached Figure Description

[0016] Figure 1 A front sectional view provided for this utility model;

[0017] Figure 2 A front view provided for this utility model;

[0018] Figure 3 Provided by this utility model Figure 1 Enlarged view of the structure at point A in the image;

[0019] Figure 4 This is a partial exploded view of the structure provided by this utility model.

[0020] In the diagram: 1. Base; 101. Placement platform; 102. Asphalt mixture block; 2. Side frame; 201. Support; 202. T-shaped guide groove; 3. Rotating shaft; 301. Synchronous pulley; 302. Motor; 4. Moving seat; 401. Threaded hole; 402. T-shaped guide seat; 403. Support roller; 404. U-shaped frame; 405. Hydraulic cylinder; 406. Rut roller. Detailed Implementation

[0021] 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.

[0022] This utility model provides the following technical solution: a device for testing the rutting resistance of asphalt mixtures. Please refer to [link / reference]. Figure 1-4 The system includes a base 1, a placement platform 101 installed at the top center of the base 1, and an asphalt mixture block 102 inside the placement platform 101. The center of the placement platform 101 on the base 1 is hollowed out, and the asphalt mixture block 102 that needs to be tested for rutting resistance is placed inside the placement platform 101. This allows the debris generated during the rutting resistance test of the asphalt mixture block 102 inside the placement platform 101 to be collected by the hollow part of the placement platform 101, which is convenient for unified cleaning and avoids the situation where the debris generated after the asphalt mixture breaks is difficult to clean. Side frames 2 are installed on both sides of the top of the base 1. A bracket 201 is installed above the opposite side of the two sets of side frames 2. A T-shaped guide groove 202 is opened on the lower surface of the bracket 201.

[0023] A rotating shaft 3 is installed at both the front and rear ends of the bracket 201. The rotating shaft 3 is rotatably connected to the side frame 2. A synchronous pulley 301 is installed at one end of the rotating shaft 3. A motor 302 is installed on the upper side of one outer wall of a set of side frames 2. The output shaft of the motor 302 is fixedly connected to the other end of the rotating shaft 3 through a coupling. The two sets of rotating shafts 3 are rotatably connected between the two sets of side frames 2, one in front and one behind. The synchronous pulleys 301 at one end of the two sets of rotating shafts 3 are connected by a synchronous belt. According to the fixed connection between the output shaft of the motor 302 and the other end of the rotating shaft 3 through the coupling, the motor 302 can drive and control the rotating shaft 3 to rotate forward or backward, and can synchronously drive the other set of rotating shafts 3 to rotate forward or backward.

[0024] A movable seat 4 is installed on one side of the outer wall of the rotating shaft 3. A threaded hole 401 is opened at the center of the surface of the movable seat 4. The inner wall of the threaded hole 401 is threadedly connected to the outer wall of the rotating shaft 3. A T-shaped guide seat 402 is provided on the top of the movable seat 4. The outer wall of the T-shaped guide seat 402 is slidably connected to the inner wall of the T-shaped guide groove 202. Two sets of movable seats 4 are correspondingly installed on the outer walls of the two sets of rotating shafts 3 by threaded connection through the threaded hole 401, and the T-shaped guide seat 402 on the top of the movable seat 4 is slidably connected. The T-shaped guide groove 202 on the bracket 201 allows the two sets of rotating shafts 3 to rotate clockwise or counterclockwise, synchronously driving the movable seat 4 to move horizontally to the left or right. Support rollers 403 are rotatably connected to both sides of the bottom of the T-shaped guide seat 402, with the bottom of the support rollers 403 located on the inner bottom surface of the T-shaped guide groove 202. A U-shaped frame 404 is mounted on the bottom of the movable seat 4. Hydraulic cylinders 405 are mounted at the front and rear ends of the inner bottom of the U-shaped frame 404, and the output end of the hydraulic cylinder 405 rotates... A rutting roller 406 is connected to the bottom of two sets of movable seats 4, and two sets of hydraulic cylinders 405 are installed on the U-shaped frame 404. The rutting roller 406 is installed at the output end of the hydraulic cylinder 405. After the asphalt mixture block 102 is placed, the hydraulic cylinder 405 drives the rutting roller 406 to apply pressure to the asphalt mixture block 102 to resist rutting. During this process, different vehicle pressures can be simulated, and the rutting roller 406 can be adjusted to perform rutting resistance tests on the asphalt mixture block 102. This avoids the situation where the rutting resistance test cannot be rigorous if the pressure is constant. At the same time, four sets of support rollers 403 are installed at the bottom of the T-shaped guide seat 402. The support rollers 403 contact the inner bottom surface of the T-shaped guide groove 202, so that the support rollers 403 support the T-shaped guide seat 402 and the components below it to prevent deformation due to insufficient support, and do not affect the normal movement of the T-shaped guide seat 402 and the components below it.

[0025] Working principle: When using this utility model, the center of the placement platform 101 on the base 1 is hollowed out, and the asphalt mixture block 102 that needs to be tested for rutting resistance is placed inside the placement platform 101. This allows the debris generated during the rutting resistance test of the asphalt mixture block 102 inside the placement platform 101 to be collected by the hollow part of the placement platform 101, facilitating unified cleaning and minimizing the difficulty in cleaning debris generated after the asphalt mixture breaks. Two sets of rotating shafts 3 are connected between two sets of side frames 2, rotating one in front of the other. The same... The stepping wheel 301 is connected by a synchronous belt. The output shaft of the motor 302 is fixedly connected to the other end of a set of rotating shafts 3 via a coupling, allowing the motor 302 to drive and control the rotating shafts 3 to rotate forward or backward, and simultaneously drive the other set of rotating shafts 3 to rotate forward or backward. Two sets of movable seats 4 are correspondingly mounted on the outer walls of the two sets of rotating shafts 3 via threaded holes 401. The T-shaped guide seats 402 on the top of the movable seats 4 are slidably mounted within the T-shaped guide grooves 202 on the bracket 201, allowing the two sets of rotating shafts 3 to rotate forward or backward, and simultaneously drive the movable seats 4 to the left or right. The process involves moving the asphalt mixture block 102 horizontally to the right. This is achieved by fixing the U-shaped frame 404 to the bottom of the two sets of movable seats 4, and installing two sets of hydraulic cylinders 405 on the corresponding U-shaped frame 404. The rutting roller 406 is then installed at the output end of the hydraulic cylinder 405. After placement, the hydraulic cylinder 405 drives the rutting roller 406 to apply pressure to the asphalt mixture block 102 to prevent rutting. During this process, different vehicle pressures can be simulated, and the rutting roller 406 can be adjusted to perform rutting resistance tests on the asphalt mixture block 102. This approach aims to avoid situations where constant pressure testing cannot ensure the rigor of the rutting resistance test. In the event of this situation, four sets of support rollers 403 are installed at the bottom of the T-shaped guide seat 402. The support rollers 403 contact the inner bottom surface of the T-shaped guide groove 202, so that the support rollers 403 support the T-shaped guide seat 402 and the components below it to prevent deformation due to insufficient support. On the other hand, it does not affect the normal movement and operation of the T-shaped guide seat 402 and the components below it. This effectively improves the performance of the asphalt mixture rutting resistance testing device and directly and effectively improves the testing efficiency and accuracy of the asphalt mixture rutting resistance testing device.

[0026] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A rutting resistance testing device for asphalt mixtures, comprising a base (1), wherein side frames (2) are installed on both sides of the top of the base (1), characterized in that: A bracket (201) is installed above the opposite side of the two sets of side frames (2), and a T-shaped guide groove (202) is provided on the lower surface of the bracket (201); A rotating shaft (3) is installed at both the lower front and rear ends of the bracket (201). A movable seat (4) is installed on one side of the outer wall of the rotating shaft (3). A threaded hole (401) is opened at the center of the surface of the movable seat (4). The inner wall of the threaded hole (401) is threadedly connected to the outer wall of the rotating shaft (3). A T-shaped guide seat (402) is provided on the top of the movable seat (4). The outer wall of the T-shaped guide seat (402) slides against the inner wall of the T-shaped guide groove (202). The T-shaped guide seat (402) is rotatably connected to two sides of its bottom, and the bottom of the support rollers (403) is located on the inner bottom surface of the T-shaped guide groove (202). The bottom of the movable seat (4) is equipped with a U-shaped frame (404). The front and rear ends of the inner bottom of the U-shaped frame (404) are equipped with hydraulic cylinders (405). The output end of the hydraulic cylinder (405) is rotatably connected to a rut roller (406).

2. The asphalt mixture rutting resistance testing device according to claim 1, characterized in that: A placement platform (101) is installed at the top center of the base (1), and an asphalt mixture block (102) is disposed inside the placement platform (101).

3. The asphalt mixture rutting resistance testing device according to claim 1, characterized in that: The rotating shaft (3) is rotatably connected to the side frame (2). A synchronous wheel (301) is installed at one end of the rotating shaft (3). A motor (302) is installed on the upper side of one outer wall of the side frame (2). The output shaft of the motor (302) is fixedly connected to the other end of the rotating shaft (3) through a coupling.

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