Asphalt pavement surface texture multi-scale accelerated abrasion equipment and method

Abstract

The invention relates to asphalt pavement surface texture multi-scale accelerated abrasion equipment and method. The equipment comprises an equipment shell, an eccentric vibration motor, a hydraulic oil cylinder, a rotating assembly, an abrasion assembly, an objective table, an objective table telescopic assembly, a movable door and walking wheels. The abrasion assembly comprises a central main shaft, a tire shaft rod and an abrasion tire; the upper part of the central main shaft is connected with the hydraulic oil cylinder, the lower part of the central main shaft is connected with a plurality of tire shaft rods with different lengths, and the lengths are gradually increased to cover a plurality of circular ring areas; the tail end of the tire shaft rod is connected with the abrasion tire. Compared with the prior art, the device has the advantages that the natural environment under real pavement service can be simulated, a plurality of annular areas can be abraded respectively, various pavement service conditions can be simulated, the device is easy and convenient to move and operate, and the abrasion efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical equipment, and in particular to a multi-scale accelerated wear device and method for asphalt pavement surface texture. Background Art

[0002] Asphalt pavement accelerated wear equipment is mainly used for emergency repair and rapid maintenance of highway infrastructure. It can simulate the wear of asphalt pavement in actual use after rapid maintenance to evaluate its durability and anti-skid performance. The anti-skid performance of asphalt pavement is crucial to driving safety. With the increase in the number of motor vehicles on the road maintenance road after the damage of highway infrastructure, the study of the anti-skid performance of the pavement is particularly important. Limitations of existing technologies: Traditional research on the anti-skid performance of asphalt pavements mainly analyzes the anti-skid index of the anti-skid layer of the asphalt pavement directly or observes the attenuation of the anti-skid value of the asphalt pavement through a rutting machine reciprocating rubbing test. However, these methods are difficult to simulate the contact and wear of the wheels on the asphalt pavement during one-way driving in actual driving, and the attenuation law after different loading times is greatly deviated from the actual situation. Development of accelerated wear equipment: In order to more realistically simulate the wear during actual driving, a variety of asphalt pavement accelerated wear equipment has been developed. These devices can simulate the one-way wear of the wheels on the pavement and evaluate the attenuation process of the pavement under the cumulative number of wheel loads. 1. Multi-field coupled asphalt pavement accelerated wear device: There are some advanced equipment that can simulate the wear change law of the pavement under different temperature, humidity and ultraviolet light intensity conditions, and evaluate the wear resistance and durability of the pavement under comprehensive environmental conditions. 2. Asphalt pavement three-wheel circular accelerated wear equipment based on active wheel drive: This is a new type of equipment, which includes a frame, a lifting component, a wheel set, a specimen placement platform and a pressure sensor. This equipment can achieve a more realistic simulation of the wear process between tires and pavement, and there is no need to splice multiple asphalt specimens to form a test area. Only a single asphalt specimen is needed to start the test, which reduces the test cost and improves the test quality. 3. Water-sand control device: Some equipment uses spreading abrasive sand for accelerated wear. Through weight sensors, preset counters and digital display time relays, the amount of abrasive sand and the sand falling cycle are accurately controlled, which greatly shortens the test wear cycle and effectively simulates the wear of the actual pavement. Accelerated wet wheel wear instrument: For the detection of the anti-skid performance of asphalt pavement, an accelerated wet wheel wear instrument was developed to simulate the wear of the pavement in long-term operation after the construction is completed.

[0003] Traditional asphalt pavement accelerated wear equipment is difficult to move due to the limitations of the equipment itself. It can only simulate one wear state in one test and cannot perform on-site accelerated wear on outdoor asphalt pavements. It cannot simulate the impact of heavy-loaded vehicles on the road surface, nor can it simulate the wear caused by the lateral and longitudinal sliding of vehicles on the road surface. Therefore, there is a large error between the simulation effect and the actual wear effect. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects of the above-mentioned prior art and to provide a multi-scale accelerated wear device and method for the surface texture of asphalt pavement, which can accelerate the wear of asphalt mixture pavement indoors or outdoors, and has the advantages of being able to simulate the natural environment under real pavement service, being able to wear multiple annular areas separately, being able to simulate various pavement service conditions (the impact of heavy-loaded vehicle bumps on the pavement, simulating the wear phenomenon caused by the lateral and longitudinal slippage of vehicles on the pavement), easy to move the equipment, simple to operate, and improving the wear efficiency.

[0005] The present invention provides a multi-scale accelerated wear device for asphalt pavement surface texture, comprising: a device housing, an eccentric vibration motor, a hydraulic cylinder, a rotating component, a wear component, a loading platform, a loading platform telescopic component, a movable door, and a running wheel;

[0006] The eccentric vibration motor generates vibrations with adjustable frequency and amplitude;

[0007] The hydraulic cylinder is arranged below the eccentric vibration motor and can perform telescopic movement;

[0008] The rotating assembly is arranged below the hydraulic cylinder;

[0009] The wear assembly is arranged below the rotating assembly, and the wear assembly includes: a central spindle, a tire shaft, and a wear tire; the upper part of the central spindle is connected to the hydraulic cylinder, and the lower part of the central spindle is connected to a plurality of tire shafts of different lengths, the lengths of which increase in sequence and cover a plurality of circular areas; the end of the tire shaft is connected to the wear tire;

[0010] The loading platform is arranged below the wear assembly, and the loading platform is provided with an adjustable clamp capable of placing asphalt pavement test pieces of various sizes;

[0011] A direction control component is provided below the stage, and the direction control component is composed of a cross-shaped track module or a gear module, which can make the stage translate up, down, left, and right, and rotate forward and reverse. The direction control component is connected to the stage telescopic component; the stage telescopic component can make the stage move away from or close to the wear mechanism, and the stage telescopic component can also rotate the stage to the outside of the equipment, making it easier to place the test piece, and then reset it; the end of the stage telescopic component is connected to a rotating device, which can be driven by a motor to drive the gear or bearing to rotate;

[0012] An environmental control component is provided above the side of the loading platform, which can simulate different temperatures, rainfall, ultraviolet aging and other conditions.

[0013] The movable door is arranged below the loading platform, and the movable door is a double door or a single door rolling shutter door. When the movable door is in an open state, the wear component can be away from the inside of the equipment and close to the ground; when the movable door is in a closed state, the wear component is inside the equipment, and temperature control can be achieved at this time;

[0014] There are traveling wheels under the equipment, and there is a lifting component next to each traveling wheel to control the overall lifting of the equipment.

[0015] Furthermore, the eccentric vibration motor can cause the hydraulic cylinder and wear assembly directly below to vibrate in the vertical direction, so as to simulate the vibration effect of vehicle bumps on the road surface. The gantry is connected above the eccentric vibration motor as the force point of the entire equipment.

[0016] Furthermore, a pressure sensor is provided in the hydraulic cylinder, which can accurately control the pressure to maintain a set range.

[0017] Furthermore, the rotating assembly is arranged below the hydraulic cylinder and includes a high-power flat motor capable of controlling the rotating speed.

[0018] Furthermore, a bearing is provided above the central main shaft and between the hydraulic cylinder so as to be able to rotate independently.

[0019] Furthermore, three tire axles of different lengths are connected below the central main shaft (the three tire axles are all in the same plane), and the lengths of the tire axles increase in sequence to cover three circular ring areas; the ends of the tire axles are connected to the worn tires; the surface patterns of the worn tires can be replaced according to the vehicle tires to be simulated, and three types of tires with different patterns can be set respectively.

[0020] Furthermore, the connection portion between the wear tire and the tire shaft is provided with a power motor, which can make the three wear tires rotate independently.

[0021] Furthermore, the loading platform telescopic assembly is composed of a pneumatic telescopic rod or a hydraulic telescopic rod.

[0022] Furthermore, the equipment is provided with four running wheels at the bottom, among which the front wheel can control steering and low-speed rotation, so that it can move autonomously during outdoor tests; each running wheel is provided with a lifting assembly next to it, which can control the overall lifting of the equipment. When conducting outdoor tests, the lifting assembly can be extended and the entire equipment can be raised to reach the optimal test height.

[0023] The present invention also provides a method for accelerating the wear of asphalt pavement surface texture at multiple scales, comprising the following steps:

[0024] When using indoors:

[0025] S1: Preparation: First adjust the lifting assembly to extend the hydraulic cylinder of the lifting assembly, and stop when the walking wheel of the equipment is 10cm off the ground; open the movable door of the equipment, and the stage telescopic assembly drives the stage to rotate and leave the inside of the equipment, which is now the work station; manually place the test piece on the stage and clamp it with an adjustable clamp. The stage telescopic assembly drives the stage to rotate into the inside of the equipment, and extends to the bottom of the wear assembly and stops, which is now the work station, and the locking device is now locked;

[0026] S2: Start the accelerated wear test: adjust the environmental control component to the test environment. The hydraulic cylinder extends to drive the wear component to descend. When the downforce of the wear tire on the test piece reaches the requirement, the rotating component starts to drive the wear component to rotate at the specified speed and working conditions (at this time, the independent rotation of the wear tire is controlled according to the required wear adjustment); during the wear process, the stage telescopic component starts to translate up and down, left and right, and rotate to simulate the wear caused by vehicle sliding on the road surface;

[0027] S3: After the wear is completed: the hydraulic cylinder contracts, the wear component is separated from the stage, the movable door is opened, the stage telescopic component drives the stage to rotate, leave the equipment, and take out the worn specimen; the stage telescopic component is reset, the movable door is closed, and the test is over;

[0028] When using outdoors:

[0029] First, connect the trailer hook to the vehicle, connect the cables, and park the wear equipment in the area where accelerated wear is required; adjust the lifting assembly to extend the hydraulic cylinder of the lifting assembly, and stop when the equipment's running wheels are 10 cm off the ground; open the movable door; the stage telescopic assembly contracts, driving the stage away from under the wear assembly, now in the work station; the hydraulic cylinder extends, driving the wear assembly to contact the asphalt pavement; lower the insulation curtain around the movable door, set up the test environment, and perform accelerated wear as required; after the wear is completed, the hydraulic cylinder contracts, the wear assembly resets, and the movable door is closed, and the test ends.

[0030] Compared with the prior art, the present invention has the following advantages:

[0031] (1) This accelerated wear equipment can perform indoor accelerated wear tests or outdoor accelerated wear tests as needed, saving test costs;

[0032] (2) The towable design allows it to be connected to any vehicle via a trailer hook, making it highly adaptable and easy to operate during outdoor test transitions.

[0033] (3) The equipment can simulate a variety of actual road service environments (high temperature, low temperature, rainfall, icing, ultraviolet aging), with good results;

[0034] (4) Three annular areas can be worn at the same time, making test comparison and analysis easy;

[0035] (5) Each wear tire can be operated independently, simulating a variety of wear conditions, filling the gap in the existing field of accelerated road wear;

[0036] (6) During indoor wear tests, the stage can be extended out of the equipment, making it easy to replace the test piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a front view of the multi-scale accelerated wear equipment for the surface texture of asphalt pavement;

[0038] Figure 2 A top view of the multi-scale accelerated wear equipment for the asphalt pavement surface texture;

[0039] Figure 3 A front view of a wear assembly of a multi-scale accelerated wear device for an asphalt pavement surface texture;

[0040] Figure 4 A top view of the wear components of a multi-scale accelerated wear device for an asphalt pavement surface texture;

[0041] Figure 5 Schematic diagram of the asphalt pavement surface texture after wear by multi-scale accelerated wear equipment.

[0042] Figure markings: 1-eccentric vibration motor; 2-hydraulic cylinder; 3-rotation assembly; 4-wear assembly; 5-loading platform; 6-movable door; 7-travel wheel; 8-loading platform telescopic assembly; 9-environmental control assembly; 10-lifting assembly; 11-central spindle; 12-tire shaft; 13-wear tire. DETAILED DESCRIPTION

[0043] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. Component models, material names, connection structures, control methods, algorithms and other features not clearly described in this technical solution are all considered to be common technical features disclosed in the prior art.

[0044] Example 1

[0045] This embodiment provides a multi-scale accelerated wear device for asphalt pavement surface texture, such as Figure 1 , 2 As shown, it includes: an equipment housing, an eccentric vibration motor (1), a hydraulic cylinder (2), a rotating component (3), a wear component (4), a loading platform (5), a loading platform telescopic component (8), a movable door (6), and a walking wheel (7);

[0046] The eccentric vibration motor (1) generates vibrations with adjustable frequency and amplitude;

[0047] The hydraulic cylinder (2) is arranged below the eccentric vibration motor (1) and is capable of telescopic movement;

[0048] The rotating assembly (3) is arranged below the hydraulic cylinder (2);

[0049] like Figure 3 , 4 As shown, the wear assembly (4) is arranged below the rotating assembly (3), and the wear assembly (4) comprises: a central spindle (11), a tire shaft (12), and a wear tire (13); the upper part of the central spindle (11) is connected to the hydraulic cylinder (2), and the lower part of the central spindle (11) is connected to a plurality of tire shafts (12) of different lengths, the lengths of which increase in sequence and cover a plurality of annular areas; the end of the tire shaft (12) is connected to the wear tire (13);

[0050] The loading platform (5) is arranged below the wear assembly (4), and the loading platform (5) is provided with an adjustable clamp capable of placing asphalt pavement test pieces of various sizes;

[0051] A direction control component is provided below the stage (5), and the direction control component is composed of a cross-shaped track module or a gear module, which can make the stage (5) move up, down, left, right, and rotate forward and reverse. The direction control component is connected to the stage telescopic component (8); the stage telescopic component (8) can make the stage move away from or close to the wear mechanism, and the stage telescopic component (8) can also rotate the stage to the outside of the equipment, making it easier to place the test piece, and then reset it; the end of the stage telescopic component (8) is connected to a rotating device, which can be driven by a motor to drive a gear or a bearing to rotate;

[0052] An environmental control component (9) is provided on the upper side of the loading platform (5) and is capable of simulating conditions such as different temperatures, rainfall, and ultraviolet aging.

[0053] The movable door (6) is arranged below the loading platform (5). The movable door (6) is a double door or a single door rolling shutter door. When the movable door (6) is in an open state, the wear component (4) can be moved away from the inside of the device and close to the ground. When the movable door (6) is in a closed state, the wear component (4) is inside the device, and temperature control can be achieved at this time.

[0054] Travel wheels (7) are arranged below the device, and a lifting assembly (10) is arranged beside each travel wheel, which can control the overall lifting of the device.

[0055] In a specific embodiment, the eccentric vibration motor (1) can cause the hydraulic cylinder (2) and the wear assembly (4) directly below to vibrate in the vertical direction, so as to simulate the vibration effect of vehicle bumps on the road surface. A gantry is connected above the eccentric vibration motor (1) as the force point of the entire device.

[0056] In a specific embodiment, a pressure sensor is provided inside the hydraulic cylinder (2), which can accurately control the pressure to maintain within a set range.

[0057] In a specific embodiment, the rotating assembly (3) is arranged below the hydraulic cylinder (2) and includes a high-power flat motor capable of controlling the rotation speed.

[0058] In a specific embodiment, a bearing is provided above the central main shaft (11) and between the hydraulic cylinder (2) so as to be able to rotate independently.

[0059] like Figure 3 , 4 As shown in FIG. 5 , in a specific embodiment, three tire axles (12) of different lengths are connected below the central main shaft (11), and the three tire axles (12) of different lengths are A, B, and C, respectively, and are connected to three worn tires 13, and the three worn tires 13 are D, E, and F. The lengths of the tire axles (12) increase in sequence, covering three circular ring areas, and the three circular ring areas are G, H, and I, respectively; the ends of the tire axles (12) are connected to the worn tires (13); the surface patterns of the worn tires (13) can be replaced according to the vehicle tires to be simulated, and tires with three different types of patterns can be set respectively.

[0060] In a specific embodiment, the connection portion between the wear tire (13) and the tire shaft (12) is provided with a power motor, which can make the three wear tires (13) rotate independently.

[0061] In a specific embodiment, the stage telescopic assembly (8) is composed of a pneumatic telescopic rod or a hydraulic telescopic rod.

[0062] In a specific embodiment, four running wheels (7) are provided at the bottom of the device, wherein the front wheel can control steering and low-speed rotation, so that it can move autonomously during outdoor tests; a lifting component (10) is provided next to each running wheel, which can control the overall lifting of the device. When conducting outdoor tests, the lifting component (10) can be extended and the entire device can be raised to reach an optimal test height.

[0063] The present invention also provides a method for accelerating the wear of asphalt pavement surface texture at multiple scales, comprising the following steps:

[0064] When using indoors:

[0065] S1: Preparation: first adjust the lifting assembly (10) to extend the hydraulic cylinder of the lifting assembly (10), and stop when the running wheel (7) of the equipment is 10 cm off the ground; open the movable door (6) of the equipment, and the stage telescopic assembly (8) drives the stage (5) to rotate and leave the inside of the equipment, which is now the workstation (3); manually place the test piece on the stage (5) and clamp it with an adjustable clamp. The stage telescopic assembly (8) drives the stage (5) to rotate and enter the inside of the equipment, and extends to the bottom of the wear assembly (4) and stops, which is now the workstation (2), and the locking device is now engaged;

[0066] S2: Start the accelerated wear test: adjust the environmental control component (9) to the test environment. The hydraulic cylinder extends to drive the wear component (4) to descend. When the downward pressure of the wear tire (13) on the test piece reaches the requirement, the rotation component (3) starts to drive the wear component (4) to rotate at a specified speed and working condition (at this time, the independent rotation of the wear tire (13) is controlled according to the required wear adjustment); during the wear process, the stage telescopic component (8) starts to translate up and down, left and right, and rotate to simulate the wear caused by vehicle sliding on the road surface;

[0067] S3: After the wear is completed: the hydraulic cylinder contracts, the wear component (4) is separated from the stage (5), the movable door (6) is opened, the stage telescopic component (8) drives the stage (5) to rotate, leave the inside of the equipment, and take out the worn test piece; the stage telescopic component (8) is reset, the movable door (6) is closed, and the test is finished;

[0068] When using outdoors:

[0069] First, connect the trailer hook to the vehicle, connect the cables, and park the wear equipment in the area where accelerated wear is required; adjust the lifting assembly (10) to extend the hydraulic cylinder of the lifting assembly (10), and stop when the running wheels of the equipment are 10 cm off the ground; open the movable door (6); the loading platform telescopic assembly (8) retracts, driving the loading platform (5) away from the bottom of the wear assembly (4), and at this time in the work station (1); the hydraulic cylinder extends, driving the wear assembly (4) to contact the asphalt road surface; lower the insulation curtain around the movable door (6), set the test environment, and perform accelerated wear as required; after the wear is completed, the hydraulic cylinder (2) retracts, the wear assembly (4) is reset, and the movable door (6) is closed, and the test ends.

[0070] Components not described in detail in this embodiment are all existing components that can be purchased through public channels.

[0071] The above description of the embodiments is to facilitate the understanding and use of the invention by those skilled in the art. It is obvious that those skilled in the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the present invention is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the present invention should be within the scope of protection of the present invention.

Claims

1. A multi-scale accelerated wear device for asphalt pavement surface texture, characterized in that: include: Equipment housing, eccentric vibration motor (1), hydraulic cylinder (2), rotating assembly (3), wear assembly (4), loading platform (5), loading platform telescopic assembly (8), movable door (6), and running wheel (7); The eccentric vibration motor (1) generates vibrations with adjustable frequency and amplitude; The hydraulic cylinder (2) is arranged below the eccentric vibration motor (1) and is capable of telescopic movement; The rotating assembly (3) is arranged below the hydraulic cylinder (2); The wear assembly (4) is arranged below the rotating assembly (3), and the wear assembly (4) comprises: a central main shaft (11), a tire shaft (12), and a wear tire (13); the upper part of the central main shaft (11) is connected to the hydraulic cylinder (2), and the lower part of the central main shaft (11) is connected to a plurality of tire shafts (12) of different lengths, the lengths of which increase in sequence and cover a plurality of annular areas; the end of the tire shaft (12) is connected to the wear tire (13); The loading platform (5) is arranged below the wear assembly (4), and the loading platform (5) is provided with an adjustable clamp capable of placing asphalt pavement test pieces of various sizes; A direction control component is provided below the stage (5), the direction control component is composed of a cross-shaped track module or a gear module, and can make the stage (5) move up, down, left, right, and rotate forward and reverse. The direction control component is connected to the stage telescopic component (8); the stage telescopic component (8) can make the stage move away from or close to the wear mechanism, and the stage telescopic component (8) can also make the stage rotate to the outside of the equipment, making it easier to place the test piece, and then reset it; An environmental control component (9) is provided on the upper side of the loading platform (5) and is capable of simulating different temperature, rainfall, and ultraviolet aging conditions; The movable door (6) is arranged below the loading platform (5); when the movable door (6) is in an open state, the wear component (4) can be moved away from the inside of the device and close to the ground; when the movable door (6) is in a closed state, the wear component (4) is inside the device, and temperature control can be achieved at this time; Travel wheels (7) are arranged below the device, and a lifting assembly (10) is arranged beside each travel wheel, which can control the overall lifting of the device.

2. The multi-scale accelerated wear device for asphalt pavement surface texture according to claim 1 is characterized in that: The eccentric vibration motor (1) can cause the hydraulic cylinder (2) and the wear assembly (4) directly below to vibrate in the vertical direction, so as to simulate the vibration effect of vehicle bumps on the road surface. The gantry is connected above the eccentric vibration motor (1) as the force point of the entire device.

3. The multi-scale accelerated wear device for asphalt pavement surface texture according to claim 1 is characterized in that: The hydraulic cylinder (2) is provided with a pressure sensor which can accurately control the pressure to maintain within a set range.

4. The multi-scale accelerated wear device for asphalt pavement surface texture according to claim 1, characterized in that: The rotating assembly (3) is arranged below the hydraulic cylinder (2) and comprises a high-power flat motor capable of controlling the rotating speed.

5. The multi-scale accelerated wear device for asphalt pavement surface texture according to claim 1 is characterized in that: A bearing is provided above the central main shaft (11) and between the hydraulic cylinder (2) so as to be able to rotate independently.

6. The multi-scale accelerated wear device for asphalt pavement surface texture according to claim 1 is characterized in that: Three tire axles (12) of different lengths are connected below the central main shaft (11), and the lengths of the tire axles (12) increase in sequence to cover three circular ring areas; the ends of the tire axles (12) are connected to a worn tire (13); the surface pattern of the worn tire (13) can be changed according to the vehicle tire to be simulated, and tires of three different types of patterns can be respectively provided.

7. The multi-scale accelerated wear device for asphalt pavement surface texture according to claim 1, characterized in that: The connection part between the wear tires (13) and the tire shaft (12) is provided with a power motor, which can make the three wear tires (13) rotate independently.

8. The multi-scale accelerated wear device for asphalt pavement surface texture according to claim 1, characterized in that: The loading platform telescopic assembly (8) is composed of a pneumatic telescopic rod or a hydraulic telescopic rod.

9. The multi-scale accelerated wear device for asphalt pavement surface texture according to claim 1, characterized in that: Four running wheels (7) are arranged at the bottom of the device, wherein the front wheel can control steering and low-speed rotation, so that the device can move autonomously during outdoor tests; a lifting assembly (10) is arranged next to each running wheel, which can control the overall lifting of the device. When an outdoor test is carried out, the lifting assembly (10) can be extended, and the entire device can be raised to reach an optimal test height.

10. A method for accelerating the wear of asphalt pavement surface texture, characterized in that: Using the multi-scale accelerated wear device for asphalt pavement surface texture as claimed in any one of claims 1 to 9 comprises the following steps: When using indoors: S1: Preparation: first adjust the lifting assembly (10) to extend the hydraulic cylinder of the lifting assembly (10), and stop when the running wheel (7) of the equipment is 10 cm off the ground; open the movable door (6) of the equipment, and the stage telescopic assembly (8) drives the stage (5) to rotate and leave the inside of the equipment, which is now the workstation (3); manually place the test piece on the stage (5) and clamp it with an adjustable clamp; the stage telescopic assembly (8) drives the stage (5) to rotate and enter the inside of the equipment, and extend to the bottom of the wear assembly (4) and stop, which is now the workstation (2), and the locking device is now engaged; S2: Start the accelerated wear test: adjust the environment control component (9) to the test environment; extend the hydraulic cylinder to drive the wear component (4) to descend; when the downward pressure of the wear tire (13) on the test piece reaches the required pressure, the rotation component (3) starts to drive the wear component (4) to rotate at a specified speed and working conditions; during the wear process, the stage telescopic component (8) starts to translate up and down, left and right, and rotate, simulating the wear caused by vehicle sliding on the road surface; S3: After the wear is completed: the hydraulic cylinder contracts, the wear component (4) is separated from the stage (5), the movable door (6) is opened, the stage telescopic component (8) drives the stage (5) to rotate, leave the inside of the equipment, and take out the worn test piece; the stage telescopic component (8) is reset, the movable door (6) is closed, and the test is finished; When using outdoors: First, connect the trailer hook to the vehicle, connect the cables, and park the wear equipment in the area where accelerated wear is required; adjust the lifting assembly (10) to extend the hydraulic cylinder of the lifting assembly (10), and stop when the running wheels of the equipment are 10 cm off the ground; open the movable door (6); the loading platform telescopic assembly (8) retracts, driving the loading platform (5) away from the bottom of the wear assembly (4), and at this time in the work station (1); the hydraulic cylinder extends, driving the wear assembly (4) to contact the asphalt road surface; lower the insulation curtain around the movable door (6), set the test environment, and perform accelerated wear as required; after the wear is completed, the hydraulic cylinder (2) retracts, the wear assembly (4) is reset, and the movable door (6) is closed, and the test ends.

Images