CN219179112U

CN219179112U - Asphalt mixture rut testing machine

Info

Publication number: CN219179112U
Application number: CN202223296150.0U
Authority: CN
Inventors: 胡庆春
Original assignee: Guangxi Haichuan Road And Bridge Construction Co ltd
Current assignee: Guangxi Haichuan Road And Bridge Construction Co ltd
Priority date: 2022-12-09
Filing date: 2022-12-09
Publication date: 2023-06-13
Anticipated expiration: 2032-12-09

Abstract

The utility model discloses an asphalt mixture rutting tester which comprises a frame, a rolling mechanism, a workbench, an inductor and a control box, wherein the rolling mechanism is arranged at the top of the frame and comprises a shifting driver, a shifting slide plate, a rolling driver, a rolling wheel and a traveling driver, the shifting driver is arranged at the top end of the frame and is connected with the shifting slide plate, the shifting slide plate is driven to slide at the top end of the frame, the rolling driver and the traveling driver are both arranged on the shifting slide plate, the rolling driver is connected with the rolling wheel, the rolling wheel is driven to move up and down above an asphalt test piece fixing mechanism, and the traveling driver is connected with the rolling driver and is driven to slide on a shifting slide plate; the shifting driver, the rolling driver, the walking driver and the inductor are all electrically connected with the control box. The utility model can reduce the errors of the rut test and the actual pavement rut and improve the accuracy of the test.

Description

Asphalt mixture rut testing machine

Technical Field

The utility model relates to the technical field of rutting tests, in particular to an asphalt mixture rutting tester.

Background

At present, most of road surfaces in road construction are paved into asphalt road surfaces, and the main damage form of the asphalt road surfaces is rutting, and the main reason is permanent deformation caused by repeated action of vehicle loads under high-temperature and other climatic conditions. Aiming at rutting, china prescribes a rutting test method of asphalt mixture according to the test procedure of highway engineering asphalt and asphalt mixture (JTG E20-2011), and the principle is that a rutting test machine simulates the process that an actual wheel load walks on a road surface to form rutting, so that the rutting resistance of the asphalt mixture is tested.

According to the requirement of the test procedure, wheels of the rutting tester roll back and forth on a certain specified position of an asphalt test piece, but the actual pavement rutting is generated by running a vehicle load on different positions of a traffic lane, rolling the pavement within a certain range of the pavement to cause damage of combined action of shear stress and compressive stress, and the damage is different from the rule specified rutting test rolling, mainly the compressive stress damage, so that errors exist in the rutting test result.

Disclosure of Invention

Aiming at the problems in the prior art, the utility model provides the asphalt mixture rut testing machine which can reduce the error of rut tests and actual pavement ruts and improve the accuracy of the tests.

The technical scheme adopted by the utility model is as follows: the utility model provides an asphalt mixture rut testing machine, including frame, rolling mechanism, workstation, inductor and control box, the workstation locate the well lower part of frame, set up pitch test piece fixed establishment on the workstation, the side of frame is located to the control box; the rolling mechanism is arranged at the top of the frame and comprises a shifting driver, a shifting slide plate, a rolling driver, a rolling wheel and a traveling driver, wherein the shifting driver is arranged at the top of the frame and is connected with the shifting slide plate to drive the shifting slide plate to slide at the top of the frame; the sensors are arranged in two groups, each group comprises a sliding plate sensing group and a rolling wheel sensing group, each group is provided with two sensors, the sensors of the sliding plate sensing groups are arranged on the frame and correspond to the starting point and the end point of the moving path of the shifting sliding plate, and the sensors of the rolling wheel sensing groups are arranged on the workbench and correspond to the starting point and the end point of the walking path of the rolling wheel; the shifting driver, the rolling driver, the walking driver and the inductor are all electrically connected with the control box.

Preferably, the rolling driver is connected with the rolling wheel through a wheel frame, the rolling wheel rotates on the wheel frame, and the output end of the rolling driver is hinged with the wheel frame.

As the preference of this technical scheme, rolling driver and walking driver be pneumatic cylinder, pneumatic cylinder sets up the electrically controlled valve, electrically controlled valve and control box electric connection.

As the preference of this technical scheme, the displacement driver be servo motor, servo motor's output connects the lead screw, displacement slide threaded connection is on the lead screw, servo motor and control box electric connection.

As the optimization of the technical scheme, grooves are formed in two opposite side walls of the top of the frame, and two ends of the shifting slide plate are inserted into the grooves; the rolling driver is provided with a base, the lower part of the shifting slide plate is provided with a T-shaped groove, the base is correspondingly provided with a T-shaped convex strip, and the T-shaped convex strip slides in the T-shaped groove.

Compared with the prior art, the utility model has the advantages that when the rolling wheel walks and rolls the asphalt test piece, the rolling wheel can be carried out at different positions of the asphalt test piece, the test situation accords with the rutting generation situation of the actual asphalt pavement to a higher degree, the error between the two is reduced, and the test accuracy is improved.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a schematic view of view A-A of fig. 1 in accordance with the present utility model.

Fig. 3 is a schematic view of the connection of the grinding drive and the grinding wheel of the utility model.

FIG. 4 is a schematic cross-sectional view of a displacement slide of the present utility model.

In the figure, 1, the frame, 2, the workstation, 3, pitch test piece fixed establishment, 4, the control box, 5, shift slide, 5.1, T type recess, 6, roll the driver, 7, the wheel carrier, 8, roll the wheel, 9, the base, 10, the walking driver, 11, the inductor, 12, shift driver, 13, lead screw, 14, pushing hands, 15, sensor.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1-4, the asphalt mixture rut testing machine provided by the utility model comprises a frame 1, a rolling mechanism, a workbench 2, an inductor 11 and a control box 4, wherein the frame 1 is in a frame shape, the workbench 2 is arranged at the middle lower part in the frame 1, an asphalt test piece fixing mechanism 3 is arranged on the workbench 2, the asphalt test piece fixing mechanism 3 is used for fixing an asphalt test piece, and the control box 4 is arranged at the side surface of the frame 1; the rolling mechanism is arranged at the top in the frame 1 and comprises a shifting driver 12, a shifting slide plate 5, a rolling driver 6, a rolling wheel 8 and a traveling driver 10, wherein the shifting driver 12 is arranged at the top end of the frame 1, the shifting driver 12 is connected with the shifting slide plate 5, the shifting slide plate 5 is driven to slide at the top end of the frame 1, the rolling driver 6 and the traveling driver 10 are both arranged on the shifting slide plate 5, the rolling driver 6 is connected with the rolling wheel 8, the rolling wheel 8 is driven to move up and down above the asphalt test piece fixing mechanism 3, the traveling driver 10 is connected with the rolling driver 6, and the rolling driver 6 is driven to slide on the shifting slide plate 5; the sensors 11 are arranged in two groups, including a slide plate sensing group and a rolling wheel sensing group, each group is provided with two sensors 11, the sensors 11 of the slide plate sensing group are arranged on the frame 1 and correspond to the starting point and the end point of the moving path of the shifting slide plate 5, and are used for limiting the moving position of the shifting slide plate 5, and the sensors 11 of the rolling wheel sensing group are arranged on the workbench 2 and correspond to the starting point and the end point of the moving path of the rolling wheel 8, and are used for limiting the moving position of the rolling wheel 8; the displacement driver 12, the rolling driver 6, the walking driver 10 and the sensor 11 are all electrically connected with the control box 4.

In the concrete implementation of the utility model, grooves are formed on two opposite side walls of the top of the frame 1, and two ends of the shifting slide plate 5 are inserted into the grooves, namely, two ends of the shifting slide plate 5 slide in the grooves; the rolling driver 6 is provided with a base 9, the lower part of the shifting slide plate 5 is provided with a T-shaped groove 5.1, the opening of the T-shaped groove 5.1 is downward, the base 9 is correspondingly provided with a T-shaped raised line, and the rolling driver 6 slides in the T-shaped groove 5.1 through the T-shaped raised line under the driving of the walking driver 10. The direction in which the shift driver 12 drives the shift slide plate 5 to move and the direction in which the travel driver 10 drives the rolling driver 6 to travel are vertical in space, the output end of the rolling driver 6 is connected with the rolling wheel 8 through the wheel frame 7, the rolling wheel 8 rotates on the wheel frame 7, the output end of the rolling driver 6 is hinged with the wheel frame 7, the wheel frame 7 is n-shaped, the rolling wheel 8 is arranged in the middle of the wheel frame 7, and the output end of the rolling driver 6 is hinged with the upper end of the wheel frame 7. The rolling driver 6 and the walking driver 10 are pneumatic cylinders, and the pneumatic cylinders are provided with electric control valves which are electrically connected with the control box 4.

The displacement driver 12 is a servo motor, the output end of the servo motor is connected with a screw rod 13, the displacement slide plate 5 is connected to the screw rod 13 in a threaded manner, and the servo motor is electrically connected with the control box 4.

When the device works specifically, the asphalt test piece is fixed on the asphalt test piece fixing mechanism, the rolling driver drives the rolling wheel to press the asphalt test piece, the traveling driver drives the rolling driver to travel so that the rolling wheel travels on the asphalt test piece, the sensor of the rolling wheel sensing group is arranged outside the asphalt test piece fixing mechanism, namely, after the rolling wheel travels outside the asphalt test piece, the shifting driver drives the shifting slide plate, and then the rolling wheel is driven to the next rolling wheel channel. The utility model realizes that the rolling wheel is changed to the next adjacent rolling area after running in a certain range of the asphalt test piece, has better track effect same as that generated by the actual wheel, reduces the error between the rolling wheel and the actual wheel, and improves the accuracy.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. An asphalt mixture rut testing machine which is characterized in that: the device comprises a frame, a rolling mechanism, a workbench, an inductor and a control box, wherein the workbench is arranged at the middle lower part of the frame, an asphalt test piece fixing mechanism is arranged on the workbench, and the control box is arranged at the side surface of the frame; the rolling mechanism is arranged at the top of the frame and comprises a shifting driver, a shifting slide plate, a rolling driver, a rolling wheel and a traveling driver, wherein the shifting driver is arranged at the top of the frame and is connected with the shifting slide plate to drive the shifting slide plate to slide at the top of the frame; the sensors are arranged in two groups, each group comprises a sliding plate sensing group and a rolling wheel sensing group, each group is provided with two sensors, the sensors of the sliding plate sensing groups are arranged on the frame and correspond to the starting point and the end point of the moving path of the shifting sliding plate, and the sensors of the rolling wheel sensing groups are arranged on the workbench and correspond to the starting point and the end point of the walking path of the rolling wheel; the shifting driver, the rolling driver, the walking driver and the inductor are all electrically connected with the control box.

2. The asphalt mixture rut tester according to claim 1, wherein: the rolling driver is connected with the rolling wheel through the wheel frame, the rolling wheel rotates on the wheel frame, and the output end of the rolling driver is hinged with the wheel frame.

3. The asphalt mixture rut tester according to claim 1, wherein: the rolling driver and the walking driver are pneumatic cylinders, and the pneumatic cylinders are provided with electric control valves which are electrically connected with the control box.

4. The asphalt mixture rut tester according to claim 1, wherein: the displacement driver is a servo motor, the output end of the servo motor is connected with the screw rod, the displacement sliding plate is connected to the screw rod in a threaded manner, and the servo motor is electrically connected with the control box.

5. The asphalt mixture rut tester according to claim 1, wherein: grooves are formed in two opposite side walls of the top of the frame, and two ends of the shifting slide plate are inserted into the grooves; the rolling driver is provided with a base, the lower part of the shifting slide plate is provided with a T-shaped groove, the base is correspondingly provided with a T-shaped convex strip, and the T-shaped convex strip slides in the T-shaped groove.