Indoor accelerated abrasion test device for simulating snow removal operation of asphalt pavement

Abstract

The invention relates to an indoor accelerated abrasion test device for simulating asphalt pavement snow removal operation, an equipment bracket is provided with a sliding guide rail, a rut plate bracket and a rut plate clamp, the rut plate clamp is arranged on the rut plate bracket, and the rut plate clamp and the rut plate bracket slide in the sliding guide rail together; a plurality of rut plate test pieces are mounted on the rut plate clamp, a rolling motor and a sliding motor are arranged on the sliding guide rail, the rolling motor is connected with a rolling brush, the rolling brush is arranged on the rut plate test pieces, and the sliding motor is connected with the rut plate clamp. Compared with the prior art, the device has the advantages that abrasion caused by different actual snow removal operations can be more comprehensively simulated, and the like.

Description

Technical Field

[0001] The invention relates to the technical field of simulation of snow removal operation on asphalt pavement, and in particular to an indoor accelerated wear test device for simulating snow removal operation on asphalt pavement. Background Art

[0002] In the maintenance of asphalt pavement in cold regions, snowplows are an indispensable equipment used to remove snow and ice to keep the road open. In the process of clearing snow from the road, the snowplow's snow shovel or snowplow brush repeatedly rubs against the road surface, which can easily cause surface wear or even damage to the asphalt pavement. This wear not only affects the surface function of the road surface, but also shortens its service life, thereby increasing maintenance costs and even posing a hidden danger to driving safety.

[0003] The new utility patent application with invention number CN220912907U authorizes a double-wheel loaded pavement wear tester. The patent of this invention comprehensively considers the wear changes under the influence of multiple factors such as speed, driving load, temperature and humidity, and truly simulates the wear of wheels on the road surface. It can quickly simulate the anti-skid decay process of asphalt concrete pavement indoors. This utility model only considers the wear effect of wheels on asphalt pavement, and does not involve the wear of snowplow roller brushes on the road surface.

[0004] The existing asphalt pavement snow removal operation simulation cannot simulate the working conditions of snowplows on asphalt pavement under various conditions, nor can it simulate the lateral wear effects of different snow removal operations and the wear effects of snow removal operations of different intensities. Summary of the invention

[0005] The purpose of the present invention is to provide an indoor accelerated wear test device for simulating snow removal operations on asphalt pavement in order to more comprehensively simulate the wear caused by different actual snow removal operations.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] An indoor accelerated wear test device for simulating snow removal operations on asphalt pavement, wherein a sliding guide rail, a rutting plate bracket and a rutting plate fixture are arranged on the equipment bracket, the rutting plate fixture is on the rutting plate bracket, and the rutting plate fixture and the rutting plate bracket slide together in the sliding guide rail;

[0008] A plurality of rutting plate specimens are installed on the rutting plate fixture, a rolling motor and a sliding motor are arranged on the sliding guide rail, the rolling motor is connected to a rolling brush, the rolling brush is arranged on the rutting plate specimen, and the sliding motor is connected to the rutting plate fixture.

[0009] Furthermore, a roller is provided on one side of the roller brush.

[0010] Furthermore, the roller is connected to an output end of a rolling motor.

[0011] Furthermore, the roller is covered with a roller belt, and the roller belt is connected to the output end of the rolling motor.

[0012] Furthermore, the number of the rutting plate clamps and the number of the rutting plate brackets are the same.

[0013] Furthermore, the rutting plate clamp is provided with fixing screws.

[0014] Furthermore, the fixing screws are arranged below the rutting plate specimen.

[0015] Furthermore, the number of the sliding guide rails is 2, and the rut plate bracket is clamped between the sliding guide rails to slide.

[0016] Furthermore, the rutting plate specimen is fixed in a rutting plate fixture.

[0017] Furthermore, the rolling motor and the sliding motor are connected to a control system.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] This device can be tested in a controllable indoor environment, effectively avoiding the interference of uncontrollable factors such as external weather, temperature, humidity, etc. on the test results. Traditional field wear test methods are usually limited by environmental conditions, and it is difficult to ensure the stability and repeatability of the test results. The present invention simulates snow removal operations of different intensities and the lateral wear effects of different snow removal operations through the control of sliding motors and rolling motors. It can simulate a variety of actual snow removal operation conditions and flexibly adjust the working parameters of the snow removal vehicle simulation module, including the shape, material, pressure, speed and angle of the snowplow shovel. This multifunctional simulation capability enables the present device to fully reproduce the wear of different types of snow removal equipment on asphalt pavement in various operating modes, providing strong support for in-depth research on the interaction between snow removal vehicles and pavement. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] In the figure, 1. Equipment bracket; 2. Sliding guide rail; 3. Rutting plate fixture; 4. Rutting plate bracket; 5. Rolling motor; 6. Sliding motor; 7. Roller belt; 8. Roller; 9. Roller brush; 10. Control system; 11. Rutting plate specimen. DETAILED DESCRIPTION

[0022] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0023] The present invention proposes an indoor accelerated wear test device for simulating snow removal operation on asphalt pavement. The structure diagram of the device is as follows: Figure 1 As shown, the equipment bracket 1 is provided with a sliding guide rail 2, a rutting plate bracket 4 and a rutting plate clamp 3, the rutting plate clamp 3 is on the rutting plate bracket 4, and the rutting plate clamp 3 and the rutting plate bracket 4 slide together in the sliding guide rail 2;

[0024] A plurality of rutting plate specimens 11 are installed on the rutting plate fixture 3 , a rolling motor 5 and a sliding motor 6 are provided on the sliding guide rail 2 , the rolling motor 5 is connected to a rolling brush 9 , the rolling brush 9 is provided on the rutting plate specimen 11 , and the sliding motor 6 is connected to the rutting plate fixture 3 .

[0025] A roller 8 is provided on one side of the roller brush 9 .

[0026] The roller 8 is connected to the output end of the rolling motor 5 .

[0027] The roller 8 is covered with a roller belt 7, and the roller belt 7 is connected to the output end of the rolling motor 5. The number of the rutting plate clamps 3 and the rutting plate brackets 4 is the same.

[0028] The rutting plate fixture 3 is provided with fixing screws.

[0029] The fixing screws are arranged below the rutting plate specimen 11 .

[0030] The number of the sliding guide rails 2 is 2, and the rut plate bracket 4 is clamped between the sliding guide rails 2 to slide.

[0031] The rutting plate specimen 11 is fixed in the rutting plate fixture 3 .

[0032] The rolling motor 5 and the sliding motor 6 are connected to a control system 10 .

[0033] It is mainly composed of three parts: support structure, roller brush and drive control system. The functions and characteristics of each part are as follows:

[0034] (1) Support structure

[0035] The support structure is the foundation of the entire instrument and is mainly composed of the equipment bracket and the rutting plate fixture. The main function of the equipment bracket is to provide a stable support for the entire device so that it can withstand various stresses and vibrations during the test.

[0036] The rutting plate fixture is a key component in the supporting structure. It is used to fix the rutting plate specimen to be tested. It can fix three rutting plate specimens of standard sizes side by side at the same time.

[0037] (2) Roller brush

[0038] The roller brush is one of the core components of the instrument, responsible for simulating the abrasive effect of a snowplow on the road. The bristle part of the roller brush is 1 meter long and 40 centimeters in diameter, including a 12-centimeter shaft diameter.

[0039] The bristles of the roller brush are made of a mixture of all-plastic bristles and elastic steel wire. The flaky structure and staggered installation of the bristles help to evenly apply friction during the test while avoiding entanglement or uneven wear of the bristles. The roller brush is processed with a corrugated process, so that the bristles can more effectively contact and act on the surface of the rutting plate during operation, achieving a more realistic wear simulation effect.

[0040] (3) Drive control system

[0041] The drive control system is the power core of the instrument, ensuring that the roller brush and the rutting plate fixture can operate stably according to the set parameters during the test. The system mainly consists of two motors and a control system. One motor drives the roller brush to rotate through a pulley, and the other motor drives the rutting plate fixture to move horizontally through a connecting rod device.

[0042] The control system is connected to the two motors and is responsible for regulating their running speed. Through the precise control of the frequency converter, the motors can flexibly adjust their speed under different test conditions, ensuring that the roller brush and fixture are tested at the appropriate rate, thus avoiding problems such as excessive wear or too long test time.

[0043] This device can be tested in a controllable indoor environment, effectively avoiding the interference of uncontrollable factors such as external weather, temperature, humidity, etc. on the test results. Traditional field wear test methods are usually limited by environmental conditions, and it is difficult to ensure the stability and repeatability of the test results. However, this device ensures high repeatability and reliability of the test by accurately controlling test conditions such as temperature, humidity, snow removal pressure and speed, making the experimental data more authentic and reliable. The patent of this invention can simulate a variety of actual snow removal operating conditions and flexibly adjust the working parameters of the snowplow simulation module, including the shape, material, pressure, speed and angle of the snowplow shovel. This versatile simulation capability enables the device to fully reproduce the wear of asphalt pavement by different types of snow removal equipment under various operating modes, providing strong support for in-depth research on the interaction between snowplows and pavement.

[0044] The device of the present invention comprises an equipment support 1; a sliding guide rail 2, a rutting plate support 4 and a rutting plate fixture 3 are installed on the equipment support 1, the rutting plate fixture 3 is on the rutting plate support 4, the rutting plate fixture 3 and the rutting plate support 4 slide together in the sliding guide rail 2, and three rutting plate specimens 11 can be installed on the rutting plate fixture 3 at the same time; a motor (rolling) 5 and a motor (sliding) 6 are placed on the sliding guide rail 2, and are responsible for driving a roller brush 9 to roll and the fixture 3 to slide respectively; the roller brush 9 is fixed on the rutting plate, and the distance between the roller brush 9 and the rutting plate 4 can be adjusted by adjusting the fixture 3; a roller 8 is placed on one side of the roller brush 9, and a roller belt 7 is sleeved on the upper part; a control system 10 can control the start and stop of the test, and can set the rolling speed of the roller brush 9 and the sliding speed of the rutting plate fixture 3.

[0045] When the present invention is working, the following steps are performed:

[0046] (1) Preliminary preparation

[0047] Clear away dust and debris in the device and test area, check whether all parts of the equipment are firm, and avoid interference of external factors on the test results.

[0048] Ensure that the surface condition of the rutting plate specimen 11 to be tested meets the test requirements. After the treatment is completed, wait until the specimen is completely dry before proceeding with subsequent operations.

[0049] (2) Simulation test

[0050] When simulating the operation of a snowplow, the bristles of the roller brush will not be in direct contact with the asphalt pavement, but there will be a layer of snow in between. In order to accurately simulate this situation, the relative position between the roller brush 9 and the rutting plate specimen 11 needs to be precisely adjusted in the device. Place the treated rutting plate specimen 11 into the rutting plate fixture 3, and ensure that its position is firmly fixed and will not move during the test. Place an A4 paper on the upper surface of the rutting plate specimen 11. By rotating the fixing screws on the fixture 3, adjust the height of the fixture to change the contact state between the bristles of the roller brush 9 and the specimen 11. Continue to adjust until the A4 paper can be easily pulled out but there is still a slight friction feeling. The relative position at this time is the ideal contact state between the roller brush 9 and the rutting plate specimen 11.

[0051] Under the drive of the rolling motor 5, the rotation speed of the rolling brush 9 is set by the control system 10. The rolling brush 9 rotates under the drive of the roller belt 7 and the roller 8, and a higher speed simulates a more intense snow removal operation, while a lower speed simulates a gentler operation.

[0052] Driven by the motor slide 6, the lateral movement speed of the fixture 3 on the guide rail 2 is set by the control system 10. This can simulate the lateral wear effect of different snow removal operations. The adjustment of the movement speed should match the speed of the roller brush 9 to ensure the comprehensiveness of the test conditions.

[0053] (3) Stop the test and post-processing

[0054] After reaching the specified wear time, turn off the power and stop the operation of the instrument.

[0055] The rutting plate specimen 11 that has been subjected to the wear test is taken out from the fixture 3, and the integrity of the specimen surface is ensured to be maintained during the taking-out process to avoid secondary damage.

[0056] According to relevant specifications, the removed rutting plate specimens were subjected to relevant surface function tests: anti-skid performance test, anti-permeability test, and wear resistance evaluation. This is to determine the impact and damage of the indoor wear test on the surface function of the rutting plate, and then infer the impact and damage of snow removal operations on the surface function of the asphalt pavement.

[0057] The preferred specific embodiments of the present invention are described in detail above. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solution that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. An indoor accelerated wear test device for simulating snow removal operations on asphalt pavement, characterized in that: The equipment support (1) is provided with a sliding guide rail (2), a rutting plate support (4) and a rutting plate clamp (3); the rutting plate clamp (3) is on the rutting plate support (4); the rutting plate clamp (3) and the rutting plate support (4) slide together in the sliding guide rail (2); A plurality of rutting plate test pieces (11) are mounted on a rutting plate fixture (3); a rolling motor (5) and a sliding motor (6) are arranged on a sliding guide rail (2); the rolling motor (5) is connected to a rolling brush (9); the rolling brush (9) is arranged on the rutting plate test piece (11); and the sliding motor (6) is connected to the rutting plate fixture (3).

2. The indoor accelerated wear test device for simulating snow removal operation on asphalt pavement according to claim 1, characterized in that: A roller (8) is provided on one side of the roller brush (9).

3. The indoor accelerated wear test device for simulating snow removal operation on asphalt pavement according to claim 2, characterized in that: The roller (8) is connected to the output end of the rolling motor (5).

4. The indoor accelerated wear test device for simulating snow removal operation on asphalt pavement according to claim 3, characterized in that: The roller (8) is covered with a roller belt (7), and the roller belt (7) is connected to the output end of the rolling motor (5).

5. The indoor accelerated wear test device for simulating snow removal operation on asphalt pavement according to claim 1, characterized in that: The number of the rutting plate clamps (3) and the number of the rutting plate brackets (4) are the same.

6. The indoor accelerated wear test device for simulating snow removal operation on asphalt pavement according to claim 5, characterized in that: The rutting plate clamp (3) is provided with fixing screws.

7. An indoor accelerated wear test device for simulating snow removal operation on asphalt pavement according to claim 6, characterized in that: The fixing screws are arranged below the rutting plate test piece (11).

8. The indoor accelerated wear test device for simulating snow removal operation on asphalt pavement according to claim 1, characterized in that: The number of the sliding guide rails (2) is 2, and the rut plate bracket (4) is clamped between the sliding guide rails (2) to slide.

9. The indoor accelerated wear test device for simulating snow removal operation on asphalt pavement according to claim 1, characterized in that: The rutting plate test piece (11) is fixed in a rutting plate fixture (3).

10. The indoor accelerated wear test device for simulating snow removal operation on asphalt pavement according to claim 1, characterized in that: The rolling motor (5) and the sliding motor (6) are connected to a control system (10).

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