Tire testing device

Abstract

The invention provides a tire testing device which comprises a loading assembly which comprises a supporting table and a first connecting shaft, the first connecting shaft is movably arranged on the side face of the supporting table in the vertical direction, and a to-be-tested tire is rotatably arranged on the first connecting shaft around the axis of the to-be-tested tire; the laying assembly is movably arranged on the bottom face of the supporting table and comprises a conveying belt, a testing material is laid on at least part of the belt face of the conveying belt, and at least part of the belt face is movably arranged in the first preset direction relative to the supporting table. The problem that in the prior art, the test accuracy of performance parameters of the AT tire in the environment close to the actual use environment is poor is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of tires, and in particular to a tire testing device. Background Art

[0002] In the field of tire testing, non-paved roads refer to test roads that have not been paved, which is completely different from traditional simulated asphalt, cement or sandpaper roads. All-terrain tires are also called AT tires. There are significant differences in design, usage scenarios and performance between this type of tire and ordinary tires. Ordinary tires are mainly suitable for urban and highway driving, emphasizing comfort and economy, while AT tires are more suitable for driving in certain special scenarios, such as beaches, golf courses, agricultural land and other road conditions, and usually pursue better traction and grip. AT tires must undergo a large number of performance tests before they can be put on the market, mainly including tire regulation tests, actual vehicle tests, etc., in order to repeatedly improve the design to meet regulatory requirements and OEM requirements.

[0003] Usually, a tire rigidity tester equipped with a highly accurate six-component force sensor is used to collect the forces and moments of AT tires in different directions, so as to conduct indoor tests on AT tires and obtain tire performance data. However, since the tread blocks of AT tires are usually deeper and larger, the indoor testing technology using traditional paved roads (such as simulated asphalt, cement, sandpaper, etc.) cannot accurately measure the performance parameters of AT tires in an environment close to actual use. Summary of the invention

[0004] The main purpose of the present invention is to provide a tire testing device to solve the problem of poor testing accuracy of performance parameters of AT tires in an environment close to actual use in the prior art.

[0005] In order to achieve the above-mentioned purpose, the present invention provides a tire testing device, comprising: a loading assembly, comprising a support platform and a first connecting shaft, the first connecting shaft being movably arranged on the side of the support platform in a vertical direction, and the tire to be tested being rotatably arranged on the first connecting shaft around the axis of the tire to be tested; a laying assembly, the laying assembly being movably arranged on the bottom surface of the support platform, the laying assembly comprising a conveyor belt, at least a portion of the belt surface of the conveyor belt is laid with a test material, and at least a portion of the belt surface is movably arranged relative to the support platform along a first preset direction.

[0006] Furthermore, the laying assembly also includes a first support frame and a supply hopper. The first support frame can be movably arranged on the bottom surface of the support platform. The supply hopper and the conveyor belt are both arranged on the first support frame. The supply hopper has a discharge port arranged toward at least a portion of the belt surface of the conveyor belt, so that the test material in the supply hopper flows through the discharge port and is laid on at least a portion of the belt surface.

[0007] Furthermore, the laying assembly also includes a scraper plate, which is connected to the first support frame, and the scraper plate of the scraper plate extends in the vertical direction. The scraper plate is arranged toward the conveyor belt and has a material passing gap between the conveyor belt, so that at least part of the test material on the belt surface passes through the material passing gap to control the laying height of the test material on at least part of the belt surface.

[0008] Furthermore, the paving assembly also includes two retaining bars, which are respectively arranged on both sides of the conveyor belt along the width direction of the conveyor belt. Each retaining bar extends along the extension direction of the conveyor belt, and each retaining bar protrudes in the vertical direction to stop the test material.

[0009] Furthermore, the laying component also includes a material collection bin and a cleaning brush, both of which are arranged on the side of the conveyor belt away from the supply hopper. The material collection port of the material collection bin is arranged toward the conveyor belt, and the cleaning brush abuts against the belt surface of the conveyor belt to clean the test material on the conveyor belt into the material collection bin through the material collection port.

[0010] Furthermore, the loading assembly also includes a second connecting member, a third connecting member and a turntable, the turntable is rotatably arranged on the bottom surface of the support platform around the axis of the turntable, the second connecting member is arranged on the turntable, the third connecting member is movably arranged on the second connecting member along a first preset direction, and the first support frame of the laying assembly is arranged on the third connecting member.

[0011] Furthermore, the loading assembly also includes a moving platform, the first connecting axis is arranged on the moving platform, the extension direction of the moving platform is parallel to the side extension direction of the supporting platform, and the moving platform is movably arranged on the side of the supporting platform along the vertical direction.

[0012] Furthermore, the tire testing device also includes a rotating connecting component, which includes a connecting disk and a second connecting shaft. The connecting disk is connected to the first connecting shaft, and the second connecting shaft is movably arranged on the connecting disk. The tire to be tested is connected to the second connecting shaft so that the tire to be tested can be rotatably arranged relative to the first connecting shaft.

[0013] Furthermore, a connecting groove is provided at an axial end of the first connecting shaft, and a connecting protrusion is provided at one axial end of the connecting disk, and the connecting protrusion is inserted into the connecting groove to connect the connecting disk and the first connecting shaft.

[0014] Furthermore, the rotating connecting component also includes a bearing, and a mounting groove is provided at the other axial end of the connecting disk, and a bearing is provided in the mounting groove. The outer ring of the bearing is connected to the groove wall of the mounting groove, and the inner ring of the bearing is connected to the circumferential outer wall of the second connecting shaft, so that the second connecting shaft can be movably arranged on the connecting disk.

[0015] By applying the technical solution of the present invention, the tire testing device includes a loading component and a laying component, the loading component includes a support platform and a first connecting shaft, the laying component includes a conveyor belt, and the tire to be tested thereon is driven to move downward by the first connecting shaft until the tire to be tested abuts against the test material on at least a portion of the belt surface of the conveyor belt, and at least a portion of the belt surface on the conveyor belt moves along a first preset direction relative to the support platform to drive the tire to be tested to rotate. Since the test material laid on at least a portion of the belt surface of the conveyor belt is a non-paved road material, at least a portion of the belt surface of the conveyor belt can accurately simulate a relatively close actual use environment of the tire to be tested. Therefore, the loading component can collect performance parameters such as the sinking amount and force data of the tire to be tested in a relatively close actual use environment, thereby solving the problem of poor testing accuracy of performance parameters of AT tires in an environment close to the actual use environment in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 A schematic diagram showing the cooperation between the tire testing device according to the present invention and the tire to be tested;

[0018] Figure 2 A schematic structural diagram of an embodiment of a loading assembly of a tire testing device according to the present invention is shown;

[0019] Figure 3 A schematic structural diagram showing an angle of a laying assembly of a tire testing device according to the present invention;

[0020] Figure 4 A schematic structural diagram showing another angle of the laying assembly of the tire testing device according to the present invention;

[0021] Figure 5 A schematic diagram showing the cooperation between the laying assembly of the tire testing device according to the present invention and the tire to be tested;

[0022] Figure 6 A schematic cross-sectional view of a rotating connection component of a tire testing device according to the present invention is shown;

[0023] Figure 7 A schematic structural diagram of a rotating connection component of a tire testing device according to the present invention is shown.

[0024] The above drawings include the following reference numerals:

[0025] 10. Support platform; 11. First connecting shaft; 21. Conveyor belt; 22. First supporting frame; 23. Feed hopper; 24. Scraper plate; 25. Scraper; 26. Retaining strip; 27. Aggregate bin; 271. Dust collection outlet; 28. Cleaning brush; 31. Second connecting piece; 32. Third connecting piece; 33. Turntable; 41. Moving platform; 51. Connecting plate; 52. Second connecting shaft; 53. Connecting groove; 54. Connecting protrusion; 55. Bearing; 56. Bearing end cover; 57. Fastener; 8. Tire to be tested; 29. ​​Sealing plate; 521. Receiving groove; 205. Fixed column. DETAILED DESCRIPTION

[0026] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0027] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0028] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0029] Please refer to Figures 1 to 7The present invention provides a tire testing device, comprising: a loading assembly, comprising a support platform 10 and a first connecting shaft 11, the first connecting shaft 11 is movably arranged on the side of the support platform 10 along the vertical direction, and the tire 8 to be tested is rotatably arranged on the first connecting shaft 11 around the axis of the tire 8 to be tested; a laying assembly, the laying assembly is movably arranged on the bottom surface of the support platform 10, the laying assembly comprises a conveyor belt 21, at least part of the belt surface of the conveyor belt 21 is laid with a test material, and at least part of the belt surface is movably arranged relative to the support platform 10 along a first preset direction.

[0030] The tire testing device of the present invention includes a loading component and a laying component, wherein the loading component includes a support platform 10 and a first connecting shaft 11, and the laying component includes a conveyor belt 21, which drives the tire 8 to be tested thereon to move downward through the first connecting shaft 11 until the tire 8 to be tested abuts against the test material on at least a portion of the belt surface of the conveyor belt 21, and at least a portion of the belt surface of the conveyor belt 21 moves along a first preset direction relative to the support platform 10 to drive the tire 8 to be tested to rotate. Since the test material laid on at least a portion of the belt surface of the conveyor belt 21 is a non-paved road material, at least a portion of the belt surface of the conveyor belt 21 can accurately simulate a relatively close actual use environment of the tire 8 to be tested. Therefore, the loading component can collect performance parameters such as the sinking amount and force data of the tire 8 to be tested in a relatively close actual use environment, thereby solving the problem of poor testing accuracy of performance parameters of AT tires in an environment close to the actual use environment in the prior art.

[0031] Specifically, the non-paved road material is usually sand, sub-sand, clay, etc.; the tire 8 to be tested is an AT tire; and the loading component is a tire rigidity tester.

[0032] Optionally, the tire 8 to be tested may also be other types of tires (including non-pneumatic tires).

[0033] In this embodiment, the laying assembly also includes a first support frame 22 and a supply hopper 23. The first support frame 22 can be movably arranged on the bottom surface of the support platform 10. The supply hopper 23 and the conveyor belt 21 are both arranged on the first support frame 22. The supply hopper 23 has a discharge port arranged toward at least a portion of the belt surface of the conveyor belt 21, so that the test material in the supply hopper 23 flows through the discharge port and is laid on at least a portion of the belt surface.

[0034] Specifically, the test material in the feed hopper 23 flows through the discharge port and is laid onto at least a portion of the belt surface, so that at least a portion of the belt surface of the conveyor belt 21 can accurately simulate a relatively close actual use environment of the tire 8 to be tested, thereby ensuring the test accuracy of the performance parameters of the tire 8 to be tested in an environment close to the actual use environment.

[0035] Specifically, the laying assembly also includes a blocking plate 29, which is movably disposed on the discharge port of the supply hopper 23. The blocking plate 29 is moved to change the flow cross-sectional area of ​​the discharge port, thereby changing the flow rate and flow velocity of the test material flowing out of the discharge port.

[0036] Specifically, the laying assembly also includes a motor and a controller, the controller and the motor are drivingly connected, and the motor and the conveyor belt 21 are drivingly connected, so that the controller can control the moving speed of at least part of the belt surface of the conveyor belt 21 through the motor, thereby controlling the rotation speed of the tire 8 to be tested.

[0037] In this embodiment, the laying assembly also includes a scraper plate 24, which is connected to the first support frame 22. The scraper plate 25 of the scraper plate 24 extends in the vertical direction. The scraper plate 25 is arranged toward the conveyor belt 21 and has a material passing gap with the conveyor belt 21, so that the test material on at least part of the belt surface passes through the material passing gap to control the laying height of the test material on at least part of the belt surface.

[0038] Specifically, the scraper plate 24 is arranged on one side of the conveyor belt 21 close to the feed hopper 23, so that the test material flowing out from the discharge port moves to the bottom of the tire 8 to be tested after passing through the material gap, so that the scraper 25 of the scraper plate can scrape the test material flat, ensuring that the test material under the tire 8 to be tested on the conveyor belt 21 is at the same height at all locations, avoiding unevenness of the test material under the tire 8 to be tested, which affects the test accuracy of the performance parameters of the tire 8 to be tested.

[0039] Specifically, the laying assembly further includes two fixing columns 205 , which are respectively arranged on both sides of the scraper plate 24 . The fixing columns 205 pass through the scraper plate 24 and the first support frame 22 , so that the scraper plate 24 and the first support frame 22 are firmly connected.

[0040] In this embodiment, the paving assembly also includes two retaining strips 26, which are respectively arranged on both sides of the conveyor belt 21 along the width direction of the conveyor belt 21, and each retaining strip 26 extends along the extension direction of the conveyor belt 21, and each retaining strip 26 protrudes in the vertical direction to stop the test material.

[0041] Specifically, each retaining strip 26 protrudes in the vertical direction to stop the test material, thereby preventing the test material from spilling from the conveyor belt 21 to the outside and polluting the test environment.

[0042] In this embodiment, the laying component also includes a material collection bin 27 and a cleaning brush 28. The material collection bin 27 and the cleaning brush 28 are both arranged on the side of the conveyor belt 21 away from the supply hopper 23. The material collection port of the material collection bin 27 is arranged toward the conveyor belt 21, and the cleaning brush 28 abuts against the belt surface of the conveyor belt 21 to clean the test material on the conveyor belt 21 and enter the material collection bin 27 through the material collection port.

[0043] Specifically, the cleaning brush 28 is used to clean the test materials on the conveyor belt 21 to avoid residual test materials on the conveyor belt 21 and affecting the movement of the conveyor belt; the test materials on the conveyor belt 21 enter the collection bin 27 through one end of the conveyor belt 21 and the collection port of the collection bin 27 to complete the collection of the test materials, avoid the test materials from overflowing and polluting the environment, and realize the recycling of the test materials.

[0044] Specifically, the dust collection outlet 271 of the material collection bin 27 is connected to a vacuum cleaner, so that the vacuum cleaner can suck the test materials in the material collection bin 27 to complete the collection, thereby preventing the test materials from overflowing and polluting the environment.

[0045] In this embodiment, the loading assembly also includes a second connecting member 31, a third connecting member 32 and a turntable 33. The turntable 33 is rotatably arranged on the bottom surface of the support platform 10 around the axis of the turntable 33. The second connecting member 31 is arranged on the turntable 33. The third connecting member 32 is movably arranged on the second connecting member 31 along a first preset direction. The first support frame 22 of the laying assembly is arranged on the third connecting member 32.

[0046] Specifically, the first support frame 22 is connected to the turntable 33 through the third connecting member 32 and the second connecting member 31, so that the turntable 33 drives the conveyor belt 21 of the laying assembly to rotate to simulate the steering angle of the tire 8 to be tested, thereby ensuring the comprehensiveness of the test data of the tire testing device of the present invention; the conveyor belt 21 of the laying assembly is driven by the third connecting member 32 to move along the first preset direction to adjust the position of the scraper plate 24 to avoid interference between the tire 8 to be tested and the scraper plate 24 during the downward movement.

[0047] In this embodiment, the loading assembly also includes a mobile platform 41, the first connecting axis 11 is arranged on the mobile platform 41, the extension direction of the mobile platform 41 is parallel to the side extension direction of the support platform 10, and the mobile platform 41 is movably arranged on the side of the support platform 10 along the vertical direction.

[0048] Specifically, the moving platform 41 is used to drive the first connecting shaft 11 to move in the vertical direction to ensure that the tire 8 to be tested can be smoothly moved to abut against or separate from the test material on the conveyor belt 21 .

[0049] In this embodiment, the tire testing device also includes a rotating connecting component, which includes a connecting disk 51 and a second connecting shaft 52. The connecting disk 51 is connected to the first connecting shaft 11, and the second connecting shaft 52 is movably arranged on the connecting disk 51. The tire 8 to be tested is connected to the second connecting shaft 52 so that the tire 8 to be tested can be rotatably arranged relative to the first connecting shaft 11.

[0050] Specifically, the connecting plate 51 is used to connect the second connecting shaft 52 and the first connecting shaft 11, and the second connecting shaft 52 is used to connect the tire to be tested 8 and the connecting plate 51, so that the tire to be tested 8 and the first connecting shaft 11, so that the first connecting shaft 11 can drive the tire to be tested 8 to move in the vertical direction.

[0051] In this embodiment, a connecting groove 53 is provided at the axial end of the first connecting shaft 11, and a connecting protrusion 54 is provided at one axial end of the connecting disk 51. The connecting protrusion 54 is inserted into the connecting groove 53 to connect the connecting disk 51 and the first connecting shaft 11.

[0052] Specifically, the connection protrusion 54 is inserted into the connection groove 53 to connect the connection disk 51 and the first connection shaft 11 , thereby ensuring the connection reliability between the first connection shaft 11 and the connection disk 51 .

[0053] Specifically, a plurality of first through holes are provided on the connecting disk 51, and a plurality of second through holes are provided on the axial end of the first connecting shaft 11. The plurality of second through holes and the plurality of first through holes are provided in one-to-one correspondence, and bolts are passed through the first through holes and the corresponding second through holes to further ensure that the connecting disk 51 and the first connecting shaft 11 are securely connected.

[0054] In this embodiment, the rotating connecting component also includes a bearing 55, and a mounting groove is provided at the other axial end of the connecting disk 51, and a bearing 55 is provided in the mounting groove. The outer ring of the bearing 55 is connected to the groove wall of the mounting groove, and the inner ring of the bearing 55 is connected to the circumferential outer wall of the second connecting shaft 52, so that the second connecting shaft 52 can be movably set on the connecting disk 51.

[0055] Specifically, the outer ring of the bearing 55 is connected to the groove wall of the mounting groove, and the inner ring of the bearing 55 is connected to the circumferential outer wall of the second connecting shaft 52, so that the second connecting shaft 52 and the connecting disk 51 are rotationally connected.

[0056] Specifically, the rotating connection component also includes a bearing end cover 56 and a fastener 57. The bearing end cover 56 is used to press the bearing 55 to axially limit the bearing 55. There is a certain gap between the bearing end cover 56 and the second connecting shaft 52 to avoid wear between the second connecting shaft 52 and the bearing end cover 56. The axial end of the second connecting shaft 52 is provided with a receiving groove 521, and the rim of the tire 8 to be tested is installed in the receiving groove 521 to connect the tire 8 to be tested and the second connecting shaft 52.

[0057] In specific implementation, the static testing method of the tire testing device of the present invention is: 1. The tire 8 to be tested is connected to the second connecting shaft 52; 2. The test material is spread on the conveyor belt 21 with equal thickness until the conveyor belt 21 under the tire 8 to be tested is full; 3. The mobile platform 41 drives the tire 8 to be tested to descend until it abuts against the test material; 4. The loading component collects the sinking amount and force data of the tire 8 to be tested; 5. The mobile platform 41 drives the tire 8 to be tested to rise, and the conveyor belt 21 starts to rotate, so that the test material on the conveyor belt 21 enters the collection bin 27.

[0058] During specific implementation, the dynamic testing method of the tire testing device of the present invention is as follows: 1. The tire 8 to be tested is connected to the second connecting shaft 52; 2. The running speed of the conveyor belt 21 is set, and the test material is spread on the conveyor belt 21 with equal thickness, and the conveyor belt 21 continues to run; 3. The test material enters the collection bin 27 at one end of the conveyor belt 21, and then enters the dust collector through the dust collection outlet 271 of the collection bin 27; 4. The mobile platform 41 drives the tire 8 to be tested to descend until it abuts against the test material, and the conveyor belt 21 drives the tire 8 to be tested to rotate; 5. The loading component collects the sinking amount and force data of the tire 8 to be tested, and the feed hopper 23 stops feeding after the collection is completed; 6. The mobile platform 41 drives the tire 8 to be tested to rise, and the test material on the conveyor belt 21 enters the collection bin 27.

[0059] It can be seen from the above description that the above embodiments of the present invention achieve the following technical effects:

[0060] The tire testing device of the present invention realizes the test of the static and dynamic performance of the tire 8 to be tested by installing the rotating connecting component and the laying component on the loading component, which is helpful to establish a virtual model and improve the design of the AT tire, and ensures the accuracy of the test results of the AT tire; the tire testing device of the present invention is designed and manufactured based on the tire rigidity testing machine, and is easy to install and disassemble, and does not affect the original function of the tire rigidity testing machine; the tire testing device of the present invention has a relatively simple structure and a low cost.

[0061] The tire testing device of the present invention includes a loading component and a laying component, wherein the loading component includes a support platform 10 and a first connecting shaft 11, and the laying component includes a conveyor belt 21, which drives the tire 8 to be tested thereon to move downward through the first connecting shaft 11 until the tire 8 to be tested abuts against the test material on at least a portion of the belt surface of the conveyor belt 21, and at least a portion of the belt surface of the conveyor belt 21 moves along a first preset direction relative to the support platform 10 to drive the tire 8 to be tested to rotate. Since the test material laid on at least a portion of the belt surface of the conveyor belt 21 is a non-paved road material, at least a portion of the belt surface of the conveyor belt 21 can accurately simulate a relatively close actual use environment of the tire 8 to be tested. Therefore, the loading component can collect performance parameters such as the sinking amount and force data of the tire 8 to be tested in a relatively close actual use environment, thereby solving the problem of poor testing accuracy of performance parameters of AT tires in an environment close to the actual use environment in the prior art.

[0062] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0063] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0064] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A tire testing device, characterized in that: include: A loading assembly comprises a support platform (10) and a first connecting shaft (11), wherein the first connecting shaft (11) is movably arranged on a side of the support platform (10) in a vertical direction, and a tire (8) to be tested is rotatably arranged on the first connecting shaft (11) around an axis of the tire (8) to be tested; A laying component, the laying component can be movably arranged on the bottom surface of the support platform (10), the laying component comprises a conveyor belt (21), at least part of the belt surface of the conveyor belt (21) is laid with a test material, and the at least part of the belt surface is movably arranged relative to the support platform (10) along a first preset direction.

2. The tire testing device according to claim 1, characterized in that: The laying assembly also includes a first support frame (22) and a supply hopper (23), wherein the first support frame (22) is movably arranged on the bottom surface of the support platform (10), the supply hopper (23) and the conveyor belt (21) are both arranged on the first support frame (22), and the supply hopper (23) has a discharge port arranged toward at least a portion of the belt surface of the conveyor belt (21), so that the test material in the supply hopper (23) flows through the discharge port and is laid onto at least a portion of the belt surface.

3. The tire testing device according to claim 2, characterized in that: The laying assembly further comprises a scraper plate (24), wherein the scraper plate (24) is connected to the first support frame (22), and a scraper plate (25) of the scraper plate (24) extends along the vertical direction, and the scraper plate (25) is arranged toward the conveyor belt (21) and has a material passing gap with the conveyor belt (21), so that the test material on at least a portion of the belt surface passes through the material passing gap, so as to control the laying height of the test material on at least a portion of the belt surface.

4. The tire testing device according to claim 2, characterized in that: The laying assembly further comprises two retaining strips (26), the two retaining strips (26) being respectively arranged on both sides of the conveyor belt (21) along the width direction of the conveyor belt (21), each retaining strip (26) extending along the extension direction of the conveyor belt (21), and each retaining strip (26) protruding along the vertical direction to stop the test material.

5. The tire testing device according to claim 2, characterized in that: The laying assembly further comprises a material collection bin (27) and a material cleaning brush (28), wherein the material collection bin (27) and the material cleaning brush (28) are both arranged on a side of the conveyor belt (21) away from the material supply hopper (23), the material collection opening of the material collection bin (27) is arranged toward the conveyor belt (21), and the material cleaning brush (28) abuts against the belt surface of the conveyor belt (21) to clean the test material on the conveyor belt (21) and enter the material collection bin (27) through the material collection opening.

6. The tire testing device according to claim 1, characterized in that: The loading assembly further comprises a second connecting member (31), a third connecting member (32) and a turntable (33); the turntable (33) is rotatably arranged on the bottom surface of the support platform (10) around an axis of the turntable (33); the second connecting member (31) is arranged on the turntable (33); the third connecting member (32) is movably arranged on the second connecting member (31) along the first preset direction; and the first supporting frame (22) of the laying assembly is arranged on the third connecting member (32).

7. The tire testing device according to claim 1, characterized in that: The loading assembly further comprises a movable platform (41), the first connecting shaft (11) being arranged on the movable platform (41), the extension direction of the movable platform (41) being parallel to the side extension direction of the support platform (10), and the movable platform (41) being movably arranged on the side of the support platform (10) along the vertical direction.

8. The tire testing device according to claim 1, characterized in that: The tire testing device further comprises a rotating connection component, the rotating connection component comprising a connection disk (51) and a second connection shaft (52), the connection disk (51) being connected to the first connection shaft (11), the second connection shaft (52) being movably arranged on the connection disk (51), the tire to be tested (8) being connected to the second connection shaft (52), so that the tire to be tested (8) is rotatably arranged relative to the first connection shaft (11).

9. The tire testing device according to claim 8, characterized in that: The axial end of the first connecting shaft (11) is provided with a connecting groove (53), and one axial end of the connecting disk (51) is provided with a connecting protrusion (54), and the connecting protrusion (54) is inserted into the connecting groove (53) to connect the connecting disk (51) and the first connecting shaft (11).

10. The tire testing device according to claim 8, characterized in that: The rotating connection component also includes a bearing (55), and the other axial end of the connecting disk (51) is provided with a mounting groove, and the bearing (55) is arranged in the mounting groove, and the bearing outer ring of the bearing (55) is connected to the groove wall of the mounting groove, and the bearing inner ring of the bearing (55) is connected to the circumferential outer wall of the second connecting shaft (52), so that the second connecting shaft (52) can be movably arranged on the connecting disk (51).

Images