Indoor asphalt pavement abrasion test device

Abstract

The invention relates to the technical field of pavement material performance testing, in particular to an indoor asphalt pavement abrasion testing device which comprises a device shell, a rolling part, a testing part and an electric control part. A movable asphalt tank is arranged at the bottom in the device shell, and the rolling part and the testing part are both arranged in the device shell and are both located above the movable asphalt tank; one end of the rolling part and one end of the testing part are movably connected to the electric control part; when an asphalt pavement is paved, the electric control part controls one end of the rolling part to move, so that the other end of the rolling part moves to a notch of the movable asphalt groove and moves relative to an asphalt mixture placed in the movable asphalt groove; when the asphalt pavement is tested, the electric control part controls one end of the test part to move, so that the other end of the test part moves to a notch of the movable asphalt tank and moves relative to the to-be-tested asphalt pavement paved in the movable asphalt tank; the problem that a single device cannot complete the whole process of the asphalt pavement abrasion test indoors is solved.

Description

Technical Field

[0001] The invention relates to the technical field of pavement material performance testing, in particular to an indoor asphalt pavement wear test device. Background Art

[0002] The proportion of traffic accidents caused by asphalt pavement due to insufficient anti-skid performance has increased significantly. The main reason for the insufficient anti-skid performance of asphalt pavement is that vehicles pass through it for a long time, and the tires of vehicles repeatedly compact and grind the asphalt pavement, which gradually reduces the surface structure of the asphalt pavement, and thus the surface anti-skid performance gradually decays, until the anti-skid requirements for driving safety cannot be guaranteed, which will cause vehicles to skid and cause traffic accidents. Therefore, in the design stage, it is necessary to start with the asphalt pavement structure, materials, and processes, and design asphalt pavement structures and materials that meet the anti-skid requirements during the service life. In order to achieve this goal, it is necessary to estimate the anti-skid service level of specific asphalt pavement structures and materials during the life cycle, that is, the wear performance, during the design stage, so as to further modify the design.

[0003] However, when conducting abrasion tests in the design phase, repeated modifications to the plan require repeated re-laying of the asphalt pavement according to the new plan (i.e., modified formula, process or materials, etc.), and then the asphalt pavement is tested using a wear test device (generally simulating vehicle tires) to obtain the wear performance of the asphalt pavement. At present, the equipment for laying asphalt pavement and the equipment for abrasion testing are separately set up and are relatively large, so each improvement of the plan requires going back and forth to multiple places or laboratories, and the efficiency of abrasion testing is very low.

[0004] Therefore, there is an urgent need for an indoor asphalt pavement wear test device that is small in size and can be placed indoors. The staff only needs to put the asphalt mixture in and a single device can complete the entire asphalt pavement wear test process; thus, efficient and repeated tests can be carried out in one room, the design stage can be completed quickly, and an asphalt pavement paving plan with excellent wear performance can be obtained. Summary of the invention

[0005] In view of the above-mentioned defects, the purpose of the present invention is to provide an indoor asphalt pavement wear test device, which solves the problem that a single device cannot complete the entire asphalt pavement wear test process indoors.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] An indoor asphalt pavement wear test device comprises a device housing, a rolling part, a test part and an electronic control part; a movable asphalt tank is provided at the bottom of the device housing, the rolling part and the test part are both arranged in the device housing and are both located above the movable asphalt tank;

[0008] One end of the rolling part and one end of the testing part are both movably connected to the electric control part;

[0009] The movable asphalt tank is used to place asphalt mixture to pave the asphalt pavement to be tested;

[0010] When paving an asphalt pavement, the electronic control unit controls one end of the rolling unit to move, so that the other end of the rolling unit moves to the slot of the movable asphalt tank, and the other end of the rolling unit and the asphalt mixture placed in the movable asphalt tank move relative to each other;

[0011] When the asphalt pavement is tested, the electronic control unit controls one end of the test unit to move, so that the other end of the test unit moves to the slot of the movable asphalt tank, and the other end of the test unit and the asphalt pavement to be tested laid in the movable asphalt tank move relative to each other.

[0012] Furthermore, the electric control unit includes a control host, a control rod and a control member; the control rod, the control member and the movable asphalt tank are all electrically connected to the control host;

[0013] The device shell is provided with a control rod movable opening, one end of the control rod is telescopically connected to the main control host up and down, the other end of the control rod passes through the control rod movable opening and is rotatably connected to the rear end of the control member, one end of the rolling part is movably connected to the upper end of the control member, and one end of the test part is movably connected to the lower end of the control member.

[0014] Furthermore, the volume of the rolling part increases from one end to the other end, the end surface of the other end of the rolling part is an arc surface, and one end of the rolling part is connected to the upper end axis of the control member.

[0015] Furthermore, a limit control piece is provided at the upper end of the control rod, a limit groove is provided at one end of the rolling part corresponding to the limit control piece, the limit control piece is used to extend a limit block and insert it into the limit groove, and the limit block and the limit groove are fixedly connected.

[0016] Furthermore, the end face cross section of the other end of the rolling part is the same as the notch of the movable asphalt groove.

[0017] Furthermore, the test part includes a wheel and a bracket; the lower end of the bracket is rotatably connected to the bearing of the wheel, and the upper end of the bracket is movably connected to the lower end of the control member.

[0018] Furthermore, the lower end of the control member can rotate horizontally, and a slideway is provided downwardly at the lower end of the control member, and the upper end of the bracket is slidably installed in the slideway.

[0019] Furthermore, the movable asphalt tank includes a tank body and a movable part; the outer wall or bottom surface of the tank body is fixedly connected to the movable part of the movable part, and the movable part is electrically connected to the control host.

[0020] Furthermore, a clamping part is also provided in the housing of the device; the clamping part is used to clamp the testing part when paving the asphalt pavement; and to clamp the rolling part when testing the asphalt pavement.

[0021] Furthermore, the clamping part includes at least two telescopic rods and a gripper, one end of the telescopic rod is fixedly connected to the gripper, and the other end of the telescopic rod is movably mounted on the inner side wall of the device housing;

[0022] The telescopic rod and the device housing are both electrically connected to the control host, and the clamping parts of at least two of the grippers cooperate to clamp the rolling part or the testing part.

[0023] The technical solution provided by the present invention may include the following beneficial effects: in order to reduce the volume of the device, the paving and testing of the asphalt pavement are completed indoors; a movable asphalt tank is provided at the bottom of the device shell, and the rolling part and the testing part are both arranged in the device shell and are both located above the movable asphalt tank, and then one end of the rolling part and one end of the testing part are both movably connected to the electronic control part; therefore, when paving the asphalt pavement, it is only necessary to place the asphalt mixture in the movable asphalt tank, and by operating the electronic control part, the electronic control part is driven to control one end of the rolling part to move, so that the other end of the rolling part moves to the notch of the movable asphalt tank, and the other end of the rolling part and the asphalt mixture placed in the movable asphalt tank are moved relative to each other, that is, according to the construction requirements of the asphalt pavement to be tested, the rolling part is controlled by the electronic control part. The other end performs a series of laying steps such as paving and rolling of the asphalt mixture, and finally forms the asphalt pavement to be tested in the movable asphalt tank; when conducting the asphalt pavement test, the driving electronic control unit controls one end of the test unit to move, so that the other end of the test unit moves to the slot of the movable asphalt tank, and the other end of the test unit and the asphalt pavement to be tested laid in the movable asphalt tank move relative to each other, that is, according to the test requirements, the other end of the test unit performs various wear actions, and repeatedly tests the asphalt pavement to be tested, and finally the wear performance of the asphalt pavement to be tested is obtained; then the whole process of asphalt pavement wear test is completed by a single device, and it can conduct efficient and repeated tests in one room, quickly complete the design stage, and obtain an asphalt pavement paving plan with excellent wear performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of an indoor asphalt pavement wear test device according to one embodiment of the present invention.

[0025] Figure 2 Yes Figure 1 A schematic diagram of the partial structure of an indoor asphalt pavement wear test device is shown.

[0026] Figure 3 Yes Figure 2 An enlarged view of point A of an indoor asphalt pavement wear test device is shown.

[0027] Among them: housing 1, rolling part 2, testing part 3, electronic control part 4, movable asphalt tank 11, control host 41, control rod 42, control part 43, control rod movable opening 12, limit control part 421, limit slot 21, wheel 31, bracket 32, slideway 431, tank body 111, movable part 112, clamping part 13, telescopic rod 131, gripper 132. DETAILED DESCRIPTION

[0028] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0029] In the description of the present invention, it is necessary to understand that the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of the features, and are used to distinguish and describe features, without distinction of order or importance.

[0030] In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0031] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0032] Combine the following Figures 1 to 3 , describing an indoor asphalt pavement wear test device according to an embodiment of the present invention.

[0033] An indoor asphalt pavement wear test device comprises a device housing 1, a rolling part 2, a test part 3 and an electronic control part 4; a movable asphalt tank 11 is provided at the bottom of the device housing 1, and the rolling part 2 and the test part 3 are both arranged in the device housing 1 and are both located above the movable asphalt tank 11;

[0034] One end of the rolling part 2 and one end of the testing part 3 are both movably connected to the electric control part 4;

[0035] The movable asphalt tank 11 is used to place asphalt mixture to pave the asphalt pavement to be tested;

[0036] When paving an asphalt pavement, the electronic control unit 4 controls one end of the rolling unit 2 to move, so that the other end of the rolling unit 2 moves to the slot of the movable asphalt tank 11, and the other end of the rolling unit 2 and the asphalt mixture placed in the movable asphalt tank 11 move relative to each other;

[0037] When the asphalt pavement is tested, the electronic control unit 4 controls one end of the test unit 3 to move, so that the other end of the test unit 3 moves to the slot of the movable asphalt tank 11, and the other end of the test unit 3 and the asphalt pavement to be tested laid in the movable asphalt tank 11 move relative to each other.

[0038] The present invention proposes a preferred embodiment of an indoor asphalt pavement wear test device, as Figures 1 to 3 As shown, in order to reduce the size of the device, the paving and testing of the asphalt pavement are completed indoors; a movable asphalt tank 11 is provided at the bottom of the device shell 1, and the rolling part 2 and the test part 3 are both arranged in the device shell 1, and are both located above the movable asphalt tank 11, and then one end of the rolling part 2 and one end of the test part 3 are movably connected to the electronic control part 4; therefore, when paving the asphalt pavement, it is only necessary to place the asphalt mixture in the movable asphalt tank 11, and through the operation control electronic control part 4, the electronic control part 4 is driven to control one end of the rolling part 2 to move, so that the other end of the rolling part 2 moves to the notch of the movable asphalt tank 11, and the other end of the rolling part 2 and the asphalt mixture placed in the movable asphalt tank 11 are relatively moved, that is, according to the construction requirements of the asphalt pavement to be tested, the other end of the rolling part 2 is moved by A series of laying steps such as paving and rolling of the asphalt mixture are performed to finally form the asphalt pavement to be tested in the movable asphalt tank 11; when the asphalt pavement test is then carried out, the electronic control unit 4 is driven to control one end of the test unit 3 to move, so that the other end of the test unit 3 moves to the notch of the movable asphalt tank 11, and the other end of the test unit 3 and the asphalt pavement to be tested laid in the movable asphalt tank 11 are moved relative to each other, that is, according to the test requirements, various wear actions are performed by the other end of the test unit 3, and the asphalt pavement to be tested is repeatedly tested to finally obtain the wear performance of the asphalt pavement to be tested; and then the whole process of asphalt pavement wear test is completed by a single device, and the test can be repeatedly and efficiently carried out in one room, the design stage can be quickly completed, and an asphalt pavement paving plan with excellent wear performance can be obtained.

[0039] It should be noted that if the whole process of the asphalt pavement wear test needs to be observed, a small window can be opened in the device housing 1 to facilitate observation by the staff.

[0040] Furthermore, the electric control unit 4 includes a control host 41, a control rod 42 and a control member 43; the control rod 42, the control member 43 and the movable asphalt tank 11 are all electrically connected to the control host 41;

[0041] The device shell 1 is provided with a control rod movable opening 12, one end of the control rod 42 is telescopically connected to the main control host 41 up and down, the other end of the control rod 42 passes through the control rod movable opening 12, and is rotatably connected to the rear end of the control member 43, one end of the rolling part 2 is movably connected to the upper end of the control member 43, and one end of the test part 3 is movably connected to the lower end of the control member 43.

[0042] In this embodiment, the electronic control unit 4 is composed of a control host 41, a control rod 42 and a control component 43 to realize the control logic of the rolling part 2 and the test part 3. The other end of the control rod 42 passes through the movable opening 12 of the control rod and is rotatably connected to the rear end of the control component 43, so that the rolling part 2 and the test part 3 can rotate up and down around the other end of the control rod 42, so that the other end of the rolling part 2 or the other end of the test part 3 can be moved to the notch of the movable asphalt tank 11; one end of the control rod 42 is telescopically connected to the main control host 41 up and down, one end of the rolling part 2 is movably connected to the upper end of the control component 43, and one end of the test part 3 is movably connected to the lower end of the control component 43. Therefore, when paving an asphalt pavement or testing an asphalt pavement, the rolling part 2 or the test part 3 can be telescopically connected to the notch of the movable asphalt tank 11 with the control rod 42 up and down, and the movable connection relationship with the control component 43 and the movable characteristics of the movable asphalt tank 11 can realize a variety of relative motion modes, thereby realizing all steps of paving an asphalt pavement or testing an asphalt pavement.

[0043] It should be noted that since all actions of the rolling section 2 and the test section 3 are realized by the cooperation of the movable asphalt tank 11, the control rod 42 and the control component 43, in order to enable the device to be operated by staff, the movable asphalt tank 11, the control rod 42 and the control component 43 must be electrically connected to the control host 41 outside the device housing 1. The staff can control the entire process of the asphalt pavement wear test by operating the control host 41.

[0044] Furthermore, the volume of the rolling part 2 increases from one end to the other end, the end surface of the other end of the rolling part 2 is an arc surface, and one end of the rolling part 2 is connected to the upper end axis of the control member 43.

[0045] In this embodiment, the paving of the asphalt pavement is completed by the rolling part 2, and the main action implemented is to spread and roll the asphalt mixture in the movable asphalt tank 11. Therefore, the rolling part 2 is preferably set to change from small to large in volume from one end to the other end, and the end face of the other end of the rolling part 2 is an arc surface. One end of the rolling part 2 is connected to the upper end axis of the control member 43 to facilitate swinging to spread or roll the asphalt mixture. The control rod 42 rotates the control member 43 to make the rolling part 2 face downward to the notch of the movable asphalt tank 11. As one end of the control rod 42 contracts downward, the other end of the rolling part 2 rolls the asphalt mixture in the movable asphalt tank 11 to achieve rolling actions with different pressures. The movable asphalt tank 11 is controlled by the control host 41 to move, thereby driving the other end of the rolling part 2 to swing and achieve different paving actions. Then, the two actions cooperate to achieve a variety of relative motion modes to pave the asphalt pavement, meeting the needs of different asphalt pavement paving schemes.

[0046] Furthermore, a limit control member 421 is provided at the upper end of the control rod 42, and a limit groove 21 is provided at one end of the rolling part 2 corresponding to the limit control member 421. The limit control member 421 is used to extend the limit block and insert it into the limit groove 21, and the limit block and the limit groove 21 are fixedly connected.

[0047] In this embodiment, when testing on an asphalt pavement, the rolling part 2 is usually rotated to the top of the control part 43. In order to prevent one end of the rolling part 2 from swinging downward due to gravity, a limit control part 421 is provided at the upper end of the control rod 42. A limit groove 21 is provided at one end of the rolling part 2 corresponding to the limit control part 421. The limit control part 421 extends out of the limit block and inserts into the limit groove 21. The limit block and the limit groove 21 are fixedly connected to fix the rolling part 2 to prevent the rolling part 2 from swinging.

[0048] Furthermore, the end face cross section of the other end of the rolling portion 2 is the same as the notch of the movable asphalt groove 11 .

[0049] In this embodiment, because the other end of the rolling portion 2 is rolled and paved by swinging, in order to ensure that the other end of the rolling portion 2 (i.e., the curved surface) acts on all the asphalt mixture in the movable asphalt groove 11, the end face cross-section of the other end of the rolling portion 2 is set to be the same as the groove of the movable asphalt groove 11 (i.e., the same length and width), so that the rolling portion 2 can completely enter the groove of the movable asphalt groove 11 and be tightly combined with the groove, and the curved surface at the other end of the rolling portion 2 can fully pave or roll the asphalt mixture as the rolling portion 2 swings.

[0050] Furthermore, the test part 3 includes a wheel 31 and a bracket 32 ​​; the lower end of the bracket 32 ​​is rotatably connected to the bearing of the wheel 31 , and the upper end of the bracket 32 ​​is movably connected to the lower end of the control member 43 .

[0051] In this embodiment, the wear test of the asphalt pavement usually simulates the wear caused by vehicle driving, so the test part 3 is composed of a wheel 31 and a bracket 32, and the lower end of the bracket 32 ​​is rotatably connected to the bearing of the wheel 31, and the upper end of the bracket 32 ​​is movably connected to the lower end of the control member 43, so that the staff can operate the control host 41 and drive the bracket 32 ​​to move through the control member 43 to move the wheel 31. At the same time, in conjunction with the active relationship of the active asphalt tank 11, the relative motion relationship between the wheel 31 and the asphalt pavement can be realized (that is, the rotation of the wheel 31), simulating the diverse driving of the wheel 31, and expanding more wear test methods.

[0052] Furthermore, the lower end of the control member 43 can rotate horizontally, and a slideway 431 is provided downwardly at the lower end of the control member 43 , and the upper end of the bracket 32 ​​is slidably installed in the slideway 431 .

[0053] In this embodiment, considering that when the vehicle is traveling, in addition to the rotation of the wheel 31, the wheel 31 also turns, so the lower end of the control member 43 is set to be horizontally rotatable so that the wheel 31 can turn, and the upper end of the bracket 32 ​​is slidably installed in the slide 431, so that the wheel 31 rotates along the slide 431 driven by the movable asphalt groove 11, thereby meeting the needs of realizing diverse driving in the test.

[0054] Furthermore, the movable asphalt tank 11 includes a tank body 111 and a movable part 112 ; the outer wall or bottom surface of the tank body 111 is fixedly connected to the movable part of the movable part 112 , and the movable part 112 is electrically connected to the control host 41 .

[0055] In this embodiment, the movable asphalt tank 11 moves the tank body 111 through the movable part 112, so the outer wall or bottom surface of the tank body 111 is fixedly connected to the movable part of the movable part 112, and the movable part 112 is electrically connected to the control host 41 to realize the controlled movement of the tank body 111 with the movable part 112. The movable part 112 is preferably a conveyor belt, and the outer wall or bottom surface of the tank body 111 can be fixed on the conveyor belt to realize horizontal movement, which meets the activity requirements of the rolling part 2 and the test part 3, and has a simple structure.

[0056] Furthermore, a clamping portion 13 is provided in the device housing 1; the clamping portion 13 is used to clamp the test portion 3 when paving the asphalt pavement; and to clamp the rolling portion 2 when testing the asphalt pavement.

[0057] In this embodiment, in order to reduce the influence of the components in another mode on the working mode when the device is in different working modes, a clamping part 13 is further provided in the device housing 1 to clamp the test part 3 or the rolling part 2 according to the working mode. More importantly, the shaking of the device during operation can be reduced, thereby improving the accuracy of the test.

[0058] Furthermore, the clamping portion 13 includes at least two telescopic rods 131 and a gripper 132, one end of the telescopic rod 131 is fixedly connected to the gripper 132, and the other end of the telescopic rod 131 is movably mounted on the inner side wall of the device housing 1;

[0059] The telescopic rod 131 and the device housing 1 are both electrically connected to the control host 41 , and the clamping parts of at least two grippers 132 cooperate to clamp the rolling part 2 or the testing part 3 .

[0060] In this embodiment, in order to improve the ability of the clamping part 13 to clamp the rolling part 2 or the test part 3 with different structures, the clamping part 13 is preferably composed of at least two telescopic rods 131 and a gripper 132. One end of the telescopic rod 131 is fixedly connected to the gripper 132, and the other end of the telescopic rod 131 is movably installed on the inner wall of the device shell 1. The telescopic rod 131 and the device shell 1 are electrically connected to the control host 41 (to control the telescopic movement or the vertical movement of the gripper 132), so that at least two grippers 132 can be driven to move up and down and telescope to cooperate in clamping the rolling part 2 or the test part 3.

[0061] It should be noted that the gripper 132 is preferably an inclined block inclined from top to bottom, and the inclined surface is the clamping part, so that the structure of clamping by multiple grippers 132 is simpler, and can also provide upward supporting force for the rolling part 2 or the test part 3, and the clamping is more stable.

[0062] Other structures and operations of an indoor asphalt pavement wear test device according to an embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0063] In the description of this specification, the description with reference to the terms "embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0064] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An indoor asphalt pavement wear test device, characterized in that: It comprises a device housing, a rolling part, a testing part and an electronic control part; a movable asphalt tank is provided at the bottom of the device housing, and the rolling part and the testing part are both arranged in the device housing and are both located above the movable asphalt tank; One end of the rolling part and one end of the testing part are both movably connected to the electric control part; The movable asphalt tank is used to place asphalt mixture to pave the asphalt pavement to be tested; When paving an asphalt pavement, the electronic control unit controls one end of the rolling unit to move, so that the other end of the rolling unit moves to the slot of the movable asphalt tank, and the other end of the rolling unit and the asphalt mixture placed in the movable asphalt tank move relative to each other; When the asphalt pavement is tested, the electronic control unit controls one end of the test unit to move, so that the other end of the test unit moves to the slot of the movable asphalt tank, and the other end of the test unit and the asphalt pavement to be tested laid in the movable asphalt tank move relative to each other.

2. An indoor asphalt pavement wear test device according to claim 1, characterized in that: The electric control unit includes a control host, a control rod and a control member; the control rod, the control member and the movable asphalt tank are all electrically connected to the control host; The device shell is provided with a control rod movable opening, one end of the control rod is telescopically connected to the main control host up and down, the other end of the control rod passes through the control rod movable opening and is rotatably connected to the rear end of the control member, one end of the rolling part is movably connected to the upper end of the control member, and one end of the test part is movably connected to the lower end of the control member.

3. An indoor asphalt pavement wear test device according to claim 2, characterized in that: The volume of the rolling part increases from one end to the other end, the end surface of the other end of the rolling part is an arc surface, and one end of the rolling part is connected to the upper end axis of the control member.

4. An indoor asphalt pavement wear test device according to claim 2, characterized in that: A limit control piece is provided at the upper end of the control rod, and a limit groove is provided at one end of the rolling part corresponding to the limit control piece. The limit control piece is used to extend a limit block and insert it into the limit groove, and the limit block and the limit groove are fixedly connected.

5. The indoor asphalt pavement wear test device according to claim 3, characterized in that: The end face cross section of the other end of the rolling part is the same as the notch of the movable asphalt groove.

6. An indoor asphalt pavement wear test device according to claim 2, characterized in that: The test part comprises a wheel and a bracket; the lower end of the bracket is rotatably connected to the bearing of the wheel, and the upper end of the bracket is movably connected to the lower end of the control member.

7. An indoor asphalt pavement wear test device according to claim 6, characterized in that: The lower end of the control member can rotate horizontally, and a slideway is provided downwardly at the lower end of the control member, and the upper end of the bracket is slidably installed in the slideway.

8. An indoor asphalt pavement wear test device according to claim 2, characterized in that: The movable asphalt tank comprises a tank body and a movable part; the outer side wall or bottom surface of the tank body is fixedly connected to the movable part of the movable part, and the movable part is electrically connected to the control host.

9. An indoor asphalt pavement wear test device according to claim 2, characterized in that: A clamping part is also provided in the housing of the device; the clamping part is used to clamp the testing part when paving the asphalt pavement; and to clamp the rolling part when testing the asphalt pavement.

10. An indoor asphalt pavement wear test device according to claim 9, characterized in that: The clamping part includes at least two telescopic rods and a gripper, one end of the telescopic rod is fixedly connected to the gripper, and the other end of the telescopic rod is movably mounted on the inner side wall of the device housing; The telescopic rod and the device housing are both electrically connected to the control host, and the clamping parts of at least two of the grippers cooperate to clamp the rolling part or the testing part.

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