Testing device

Abstract

The invention provides a testing device used for testing the resistance of a tire, and the testing device comprises a bearing unit which is at least partially rotatably arranged and is used for bearing the tire and driving the tire to rotate; the positioning part is movably arranged on the bearing unit so as to determine the test surface of the tire through the positioning part; the testing part is movably arranged on the bearing unit, so that the testing part is controlled to move to a position corresponding to the testing surface after the conducting liquid is smeared on the testing surface, and the resistance of the testing surface smeared with the conducting liquid is tested; wherein the number of the test surfaces is multiple, and the multiple test surfaces are distributed in the circumferential direction of the tire at preset intervals, so that the tire is controlled to rotate through the bearing unit, and the resistance of each test surface coated with the conductive liquid is measured respectively; the problem that in the prior art, when a large aircraft tire is manually positioned, the measurement result is inaccurate is solved.

Description

Technical Field

[0001] This application relates to the field of tire measurement technology, and more specifically, to a testing device. Background Technology

[0002] In the aviation tire industry, especially in the field of performance testing, ensuring excellent electrical conductivity is crucial. Currently, this performance is primarily evaluated based on the resistance test standard in "GJB 108B-98 Test Methods for Military Aviation Tires". This standard requires resistance measurements to be taken at six equal divisions along the tire circumference, with the measurement points 25mm from the bottom of the bead, using electrodes with an area of ​​625mm², and reading the data within a specific timeframe after the current has stabilized. However, this process typically relies on manual operation, which is not only time-consuming and labor-intensive but also has significant limitations in terms of accuracy and consistency.

[0003] In the existing technology, when it is necessary to test the resistance of a tire, the measurement points on the tire surface need to be manually located. However, when dealing with large aircraft tires, the increased size and weight of the large aircraft tires make the operation more difficult. As a result, the positioning method in the existing technology is difficult to accurately locate the tire measurement points, which affects the accuracy of the test results. Summary of the Invention

[0004] The main objective of this invention is to provide a testing device to solve the problem of inaccurate measurement results caused by manual positioning of large aircraft tires in the prior art.

[0005] To achieve the above objectives, according to one aspect of the present invention, a testing apparatus is provided for testing the resistance of a tire, the testing apparatus comprising:

[0006] A load-bearing unit, at least partially rotatable, for bearing a tire and driving the tire to rotate;

[0007] A positioning component is movably mounted on the carrier unit to determine the test surface of the tire.

[0008] The test component is movably mounted on the carrier unit so that after the conductive liquid is applied to the test surface, the test component is controlled to move to a position corresponding to the test surface and the resistance of the test surface after the conductive liquid is applied is tested.

[0009] The test surface consists of multiple test surfaces, which are distributed around the tire at a preset interval. The tire is rotated by a load-bearing unit to measure the resistance of each test surface after it has been coated with conductive liquid.

[0010] Furthermore, the testing device also includes a liquid spraying component, which is movably mounted on the support unit. The spraying end of the liquid spraying component is selectively positioned toward the test surface, and the other end of the liquid spraying component is connected to the conductive liquid receiving component so as to spray conductive liquid onto the test surface when the liquid spraying component is aligned with the test surface.

[0011] Furthermore, the load-bearing unit includes a first load-bearing structure, which includes a rotatably disposed rotating component that can selectively contact the tire;

[0012] The second load-bearing structure is disposed on one side of the first load-bearing structure, and the second load-bearing structure includes a plurality of rotatably disposed rolling components;

[0013] In this process, at least a portion of the tire contacts multiple rolling components, so that after one test surface is tested, a rotating component contacts at least a portion of the tire and, with the assistance of the multiple rolling components, drives the tire to rotate to test the remaining test surfaces.

[0014] Furthermore, the first load-bearing structure also includes a first load-bearing part, and a first mounting position is provided on the side of the first load-bearing part that is relatively close to the second load-bearing structure;

[0015] The first telescopic component has its first telescopic end movably extending through the first mounting position;

[0016] A driving element is disposed on the first telescopic end;

[0017] The rotating component is located on the driving end of the driving element, so that the driving element and the rotating component can be driven to move relatively closer to or away from the second bearing structure through the first telescopic component. The rotation axis of the rotating component is different from the extension direction of the first telescopic component.

[0018] Furthermore, the second load-bearing structure also includes two second load-bearing parts arranged opposite to each other, with a rolling space formed between the two second load-bearing parts, and multiple rolling components are arranged in the rolling space, wherein the multiple rolling components form an arc-shaped rolling surface, and the tire is on the rolling surface.

[0019] Furthermore, the testing device also includes first moving parts respectively disposed on two second bearing parts, and the testing device also includes second telescopic parts disposed on the relatively close sides of the two first moving parts. The positioning part, the testing part, and the liquid spraying part of the testing device are all disposed on the first moving parts.

[0020] Furthermore, the first moving component includes a moving body, a sliding component, and an insulating component disposed on the sliding component, wherein the sliding component is slidably disposed relative to the moving body, the spraying component, the positioning component, and the testing component are sequentially disposed on the insulating component along a direction gradually approaching the rolling surface, and the second telescopic component is disposed on the sliding component; and / or,

[0021] The second load-bearing structure also includes a load-bearing platform with an inclined load-bearing surface. The highest end of the load-bearing surface is positioned close to the rolling space so that the tire can enter the rolling space through the load-bearing surface.

[0022] Furthermore, the testing device also includes a clamping unit, which is disposed on one side of the bearing unit. The clamping unit includes a clamping base, a clamping column, and a clamping body. The clamping column can move relative to the clamping base in a first direction, and the clamping body is adjustable relative to the clamping column in a second direction, so that under the action of the clamping column and the clamping body, at least a portion of the clamping body contacts the tire to clamp the tire.

[0023] Furthermore, the clamping body includes an adjusting component and a clamping roller disposed on the adjusting component. The clamping roller can rotate relative to the adjusting component so that when the tire in the clamped state rotates relative to the load-bearing unit, the clamping roller can rotate together with the tire.

[0024] Furthermore, the adjusting assembly includes an adjusting sleeve and a locking component. The adjusting sleeve is fitted onto the clamping column and has a first locking position. The clamping column has multiple second locking positions arranged sequentially along the extension direction of the clamping column, so that when the first locking position corresponds to one of the second locking positions, the adjusting sleeve is fixed to the clamping column by the locking component.

[0025] By applying the technical solution of this invention, the position of the tire's test surface can be accurately located through the setting of the positioning component, thereby achieving precise positioning to ensure the accuracy of each resistance test position and improve the overall accuracy of the test data. By setting the bearing unit, positioning component, and test component, the entire process of tire bearing, positioning, and resistance testing can be completed automatically, replacing traditional manual operation and thus improving testing efficiency. At the same time, the testing device in this technical solution can adapt to tires of different sizes and shapes. Through the adjustment of the bearing unit and the identification of the positioning component, it can test various types of aviation tires. Attached Figure Description

[0026] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0027] Figure 1 This diagram illustrates the overall structural relationship between the testing device and the tire according to an embodiment of this application.

[0028] Figure 2 A schematic diagram of the overall structure of the testing device according to an embodiment of this application is shown;

[0029] Figure 3 A schematic diagram of the second load-bearing structure according to an embodiment of this application is shown;

[0030] Figure 4 This illustration shows a positional diagram between the positioning component and the first moving component according to an embodiment of this application.

[0031] Figure 5 A schematic diagram of the clamping unit according to an embodiment of this application is shown;

[0032] Figure 6 A schematic diagram of the first load-bearing structure according to an embodiment of this application is shown.

[0033] The above figures include the following reference numerals:

[0034] 1. Tires;

[0035] 2. Bearing unit;

[0036] 21. First load-bearing structure; 211. Rotating component; 212. First load-bearing part; 213. First mounting position; 214. First telescopic component; 215. Driving element;

[0037] 22. Second load-bearing structure; 221. Rolling component; 222. Second load-bearing part; 223. Load-bearing platform;

[0038] 3. Positioning component; 4. Testing component; 5. Spraying component;

[0039] 6. First moving part; 61. Moving body; 62. Sliding part; 63. Insulating part;

[0040] 7. Second telescopic component; 8. Clamping unit; 81. Clamping base; 82. Clamping column; 83. Clamping body; 831. Adjustment component; 8311. Adjustment sleeve; 8312. Locking component; 832. Clamping roller; 84. Second moving component. Detailed Implementation

[0041] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0042] As mentioned in the background section, ensuring excellent electrical conductivity is crucial in the aviation tire industry, especially in the performance testing of aviation tires. Currently, this performance is primarily evaluated based on the resistance test standard in "GJB 108B-98 Test Methods for Military Aviation Tires". This standard requires resistance measurements to be taken at six equal divisions along the tire circumference, with the measurement point 25mm from the bottom of the bead, using electrodes with an area of ​​625mm², and reading the data within a specific time after the current stabilizes. However, this process typically relies on manual operation, which is not only time-consuming and labor-intensive but also has significant limitations in terms of accuracy and consistency.

[0043] In the existing technology, when it is necessary to test the resistance of a tire, the measurement points on the tire surface need to be manually located. However, when dealing with large aircraft tires, the increased size and weight of the large aircraft tires make the operation more difficult. As a result, the positioning method in the existing technology is difficult to accurately locate the tire measurement points, which affects the accuracy of the test results.

[0044] Therefore, this application provides a testing device, which includes a bearing unit 2, a positioning component 3, a testing component 4, a liquid spraying component 5, a first moving component 6, a second telescopic component 7, and a clamping unit 8.

[0045] Among them, the bearing unit 2 is used to support the tire 1, such as Figure 6 As shown, the bearing unit 2 includes a first bearing structure 21 and a second bearing structure 22. The first bearing structure 21 includes a rotating component 211, a first bearing portion 212, a first telescopic component 214, and a driving element 215. The second bearing structure 22 includes a rolling component 221, a second bearing portion 222, and a bearing platform 223.

[0046] The stable contact between the bearing unit 2 and the tire 1, along with the ability to rotate the tire 1 and the measurement by the positioning component 3, ensures the accuracy of the test point. The positioning component 3 is designed to accurately lock the position 25mm from the bottom of the tire bead, thus eliminating the error of manual positioning. At the same time, the testing device significantly shortens the testing cycle for each tire, thereby improving testing efficiency.

[0047] In this embodiment, the first supporting part 212 is a vertically arranged plate structure. A first mounting position 213 is provided on the first supporting structure 21, and a mounting hole is provided on the first mounting position 213. The first telescopic end of the first telescopic member 214 passes through the mounting hole and connects to the driving element 215 to drive the driving element 215 along... Figure 6The vertical movement of the tire 1 is achieved by a rotating component 211 at the driving end of the driving element 215. The rotating component 211 is driven to rotate by the driving element 215, allowing the tire 1 to rotate under the action of external force. After testing one test surface is completed, the rotating component 211 can be used to rotate the tire 1 to measure the second test surface. This setup not only accurately positions each test surface but also avoids the problems of reduced efficiency and inaccurate test results caused by manual rotation.

[0048] In this embodiment, there are two second support portions 222, one of which is disposed adjacent to one side of the first support portion 212. A rolling space is formed between the two second support portions 222, and multiple rolling components 221 are disposed within the rolling space. Each of the multiple rolling components 221 can rotate relative to the second support portion 222. The multiple rolling components 221 together form a rolling surface. The rolling surface is arc-shaped, and the arc-shaped rolling surface ensures that the tire 1 will not detach from the second support portion 222 during rotation. A support platform 223 is disposed at one end of the two second support portions 222. Figure 3 As shown, the support platform 223 has an inclined support surface, wherein the distance between the support surface and the ground gradually increases along the direction that gradually approaches the two second support parts 222. The support platform 223 facilitates pushing the tire 1 onto the arc-shaped rolling surface.

[0049] The mounting platform 223 makes the loading process of tire 1 more convenient. Tire 1 can be easily pushed onto the mounting platform from the lower end and then naturally slide into the arc-shaped rolling surface formed by multiple rolling components 221, reducing the physical exertion of the operator and avoiding problems such as loading difficulties caused by the excessive size and weight of tire 1.

[0050] Multiple rolling components 221 form an arc-shaped rolling surface, which ensures the stability and safety of the tire 1 during rotation and prevents the tire 1 from skidding or rolling over due to mismatch of the rolling surface.

[0051] The combined use of the second bearing part 222 and the rolling part 221, along with the assistance of the bearing platform 223, not only simplifies the tire loading process but also speeds up the rotation and positioning of the tire 1, enabling the testing device to quickly complete multiple position tests of the tire 1, greatly shortening the overall testing cycle and improving testing efficiency.

[0052] like Figure 2 and Figure 4As shown, the testing device also includes a first moving component 6. In this embodiment, there are two first moving components 6. One first moving component 6 is disposed on the first support portion 212, and the other first moving component 6 is disposed on the second support portion 222 away from the first support portion 212. The first moving component 6 includes a moving body 61, which is a moving module in this embodiment. A slide rail is disposed on the moving body 61, and a sliding component 62 is slidably disposed on the slide rail. In this embodiment, the sliding component 62 is a slider. A second telescopic component 7 is disposed on the side of the sliding component 62 away from the moving body 61. An insulating component 63 is disposed on the telescopic end of the second telescopic component 7. A positioning component 3, a testing component 4, and a spraying component 5 are disposed on the side of the insulating component 63 away from the second telescopic component 7. The positioning component 3, the testing component 4, and the spraying component 5 are on the same straight line.

[0053] The arrangement of the two first moving parts 6 allows the positioning part 3, the testing part, and the spraying part 5 to be operated from two opposite sides of the tire 1, thereby achieving full coverage of the tire 1 and improving the reliability of the test.

[0054] By using a motion module to drive the slider and the second telescopic component 7, the positioning, spraying, and resistance measurement of the tire 1 can be completed without frequent manual adjustments, reducing the operator's workload and improving testing efficiency.

[0055] The sliding component 62 and the telescopic capability of the second telescopic component 7 allow the positioning component 3, the testing component 4 and the spraying component 5 to flexibly adjust their contact distance and pressure with the tire 1, thereby enabling them to adapt to tires of different sizes and shapes.

[0056] Since the positioning component 3, the testing component 4, and the spraying component 5 are kept in the same straight line during operation, it is ensured that each test is carried out under the same conditions. This not only improves the accuracy of a single test, but also ensures the comparability and consistency of data between different tests.

[0057] Optionally, in this embodiment, the positioning component 3 is a laser distance sensor. The laser distance sensor can determine the cross-sectional width of the tire 1 and the position of the bottom of the tire bead of the tire 1, and then determine the position 25mm away from the bottom of the tire bead, and thus determine the test surface of the tire 1.

[0058] Optionally, in this embodiment, the spraying component 5 is a nozzle. The spraying end of the spraying component 5 can be selectively set towards the test surface. The position of the spraying component 5 is adjusted by the first moving component 6 so that the spraying end of the spraying component 5 is opposite to the test surface, thereby spraying conductive liquid onto the test surface. This improves the spraying accuracy and ensures the accuracy of the test results. Through the setting of the first moving component 6, the spraying component 5 can automatically adjust its position, thereby achieving precise alignment with the test surface of the tire 1 before spraying conductive liquid. This setting avoids the problems of position deviation and uneven spraying caused by manual operation in the prior art, and improves the uniformity of spraying. The other end of the spraying component 5 is connected to the conductive liquid receiving component through a pipe. The conductive liquid receiving component is a receiving tank containing conductive liquid.

[0059] Optionally, in this embodiment, the test component 4 is an electrode, which can be used to measure the resistance of the test surface after the conductive liquid has been sprayed. The area of ​​the electrode is 625 mm². 2 The resistance of tire 1 can be measured by bringing the electrode into contact with the test surface.

[0060] like Figure 5 The clamping unit 8 is disposed on one side of the bearing unit 2. The clamping unit 8 includes a clamping base 81, clamping columns 82, and a clamping body 83. A second moving component 84 is disposed on the clamping base 81. The second moving component 84 is a motion module, and it is provided with a sliding member and a fixing member. The sliding member can slide relative to the second moving component 84, and the fixing member is fixed relative to the second moving component 84. In this embodiment, there are two clamping columns 82, one of which is disposed on the sliding member, and the other is disposed on the fixing member. The second moving component 84 can drive one of the clamping columns 82 to move. The clamping body 83 includes an adjustment component 831. A clamping roller 832 is provided on an adjusting assembly 831. The adjusting assembly 831 includes an adjusting sleeve 8311 and a locking component 8312. The adjusting sleeve 8311 is sleeved on a clamping column 82. The clamping column 82 is provided with a plurality of second locking positions. The adjusting sleeve 8311 is provided with a first locking position that cooperates with the second locking positions. The locking component 8312 is inserted into the first locking position to fix the adjusting sleeve 8311 on the clamping column 82. The adjusting sleeve 8311 is also provided with a support column. The support column is provided with a plurality of clamping rollers 832, and each clamping roller 832 can rotate relative to the support column.

[0061] The second moving component 84 drives the clamping column 82 on the sliding member to move relative to the clamping column 82 on the fixed member, enabling the testing device to adjust the clamping position according to tires of different sizes and shapes. The setting of the adjusting component 831, especially the cooperation between the adjusting sleeve 8311 and the locking component 8312, allows the operator to fine-tune the clamping position and force of the tire 1. The multiple clamping rollers 832 on the clamping body 83 can each rotate independently, providing uniform pressure and stable support for the tire 1, avoiding possible tipping or damage to the tire 1 during clamping, and significantly improving operational safety.

[0062] Optionally, the first locking position, the second locking position, and the bolt hole, the locking component 8312 is a locking bolt.

[0063] During use, such as Figure 1 As shown, the tire 1 is pushed into the rolling space by the support platform 223 and placed on the arc-shaped rolling surface. The relative position between the adjusting sleeve 8311 and the clamping column 82 is adjusted so that the clamping roller 832 is located above the middle of the tire 1. The adjusting sleeve 8311 is fixed to the clamping column 82 by the locking component 8312. The moving body 61 is controlled to drive the positioning components 3 located on both sides of the tire 1 to move in the vertical direction. The cross-sectional width of the tire 1 and the bottom position of the tire 1 can be determined by the positioning components 3 on both sides. In addition, the position 25mm away from the bottom of the tire bead can be determined. Specifically, the positioning components 3 arranged on both sides of the tire can scan in a direction perpendicular to the tire axis and measure the distance from one tire shoulder to the other tire shoulder, which is the cross-sectional width.

[0064] The first telescopic component 214 drives the drive element 215 to move vertically until the rotating component 211 on the drive element 215 contacts the tire 1 and clamps the tire 1. Then, the second moving component 84 drives one of the clamping columns 82 to move closer to the other clamping column 82 until the clamping rollers 832 on the two clamping columns 82 contact the tire 1 and clamp the tire 1. The first moving body 61 drives the spraying component 5 to move to a position 25mm away from the bottom of the tire bead. At this time, the spraying end of the spraying component 5 is opposite to the test surface. The second telescopic component 7 drives the spraying component 5 to move closer to the test surface, spraying the conductive liquid onto the test surface. Then, the second telescopic component 7 drives the spraying component 5 to move closer to the test surface. A moving body 61 drives the test component 4 to a position 25mm away from the bottom of the tire bead. At this time, the test component 4 is opposite to the test surface. The second telescopic component 7 drives the test component 4 to move towards the test surface after the conductive liquid is applied, and measures the resistance of the tire 1. After the measurement, the second telescopic component 7 drives the test component 4 to move away from the tire 1. The driving element 215 drives the rotating component 211 to rotate. At the same time, under the action of multiple rolling components 221 located in the rolling space, the tire 1 rotates. After the tire 1 has rolled one-sixth of a circle, it stops moving. The above steps are repeated until all six test surfaces on the tire 1 have been tested, thus completing the measurement of the resistance of the tire 1.

[0065] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0066] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0067] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0068] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0069] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0070] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A test device, characterized by The application relates to a testing device for testing the resistance of a tire (1), which comprises: a bearing unit (2) arranged at least partially rotatably for bearing the tire (1) and driving the tire (1) to rotate; a positioning component (3) movably arranged on the bearing unit (2) for determining a testing surface of the tire (1) by the positioning component (3); a testing component (4) movably arranged on the bearing unit (2) for controlling the testing component (4) to move to a position corresponding to the testing surface after the testing surface is coated with conductive liquid and testing the resistance of the testing surface after the conductive liquid is coated; wherein the testing surface is multiple, and the multiple testing surfaces are distributed at a preset interval in the circumferential direction of the tire (1), and the resistance of each testing surface after the conductive liquid is coated is measured by driving the tire (1) to rotate by the bearing unit (2).

2. The test device of claim 1, wherein, The testing device further comprises: a liquid spraying component (5) movably arranged on the bearing unit (2), and a liquid spraying end of the liquid spraying component (5) is selectively arranged towards the testing surface, and the other end of the liquid spraying component (5) is in communication with a conductive liquid containing component so as to spray the conductive liquid to the testing surface when the liquid spraying component (5) corresponds to the testing surface.

3. The test device of claim 1, wherein, The bearing unit (2) comprises: a first bearing structure (21) comprising a rotating component (211) arranged rotatably, and the rotating component (211) is selectively in contact with the tire (1); a second bearing structure (22) arranged on one side of the first bearing structure (21), and the second bearing structure (22) comprises a plurality of rolling components (221) arranged rotatably; wherein at least part of the tire (1) is in contact with the plurality of rolling components (221) so that the rotating component (211) is in contact with at least part of the tire (1) after the testing of one of the testing surfaces is completed, and the tire (1) is driven to rotate with the assistance of the plurality of rolling components (221) so as to test the remaining testing surfaces.

4. The test device of claim 3, wherein, The first bearing structure (21) further comprises: a first bearing part (212) provided with a first mounting position (213) on the side relatively close to the second bearing structure (22); a first telescopic component (214) with a first telescopic end movably penetrating the first mounting position (213); a driving element (215) arranged on the first telescopic end; wherein the rotating component (211) is arranged on the driving end of the driving element (215) so that the driving element (215) and the rotating component (211) are relatively close to or away from the second bearing structure (22) by the first telescopic component (214), and the rotation axis of the rotating component (211) is different from the telescopic direction of the first telescopic component (214).

5. The test device of claim 3, wherein, The second bearing structure (22) further comprises: Two second bearing parts (222) are oppositely arranged, a rolling space is formed between the two second bearing parts (222), and a plurality of rolling components (221) are arranged in the rolling space, wherein the plurality of rolling components (221) form an arc-shaped rolling surface, and the tire (1) is located on the rolling surface.

6. The test device of claim 5, wherein, The testing device further comprises first moving components (6) arranged on two opposite sides of the second bearing part (222), and further comprises a second telescopic component (7) arranged on the side of the first moving component (6) close to each other, and the positioning component (3), the testing component (4) and the liquid spraying component (5) of the testing device are arranged on the first moving component (6).

7. The testing device according to claim 6, characterized in that, The first moving component (6) comprises a moving body (61), a sliding component (62) and an insulating component (63) arranged on the sliding component (62), wherein the sliding component (62) is slidably arranged relative to the moving body (61), the liquid spraying component (5), the positioning component (3) and the testing component (4) are sequentially arranged on the insulating component (63) in a direction gradually close to the rolling surface, and the second telescopic component (7) is arranged on the sliding component (62); and / or, The second bearing structure (22) further comprises a bearing table (223) having an inclined bearing surface, and the highest end of the bearing surface is arranged close to the rolling space, so that the tire (1) enters the rolling space through the bearing surface.

8. The test device of claim 1, wherein, The testing device further comprises: A clamping unit (8) is arranged on one side of the bearing unit (2), the clamping unit (8) comprises a clamping base (81), a clamping column (82) and a clamping body (83), the clamping column (82) is movable relative to the clamping base (81) in a first direction, and the clamping body (83) is adjustably arranged relative to the clamping column (82) in a second direction, so that at least part of the clamping body (83) is in contact with the tire (1) under the action of the clamping column (82) and the clamping body (83), so as to clamp the tire (1).

9. The test device of claim 8, wherein, The clamping body (83) comprises: An adjusting assembly (831) and a clamping roller (832) arranged on the adjusting assembly (831), the clamping roller (832) is rotatable relative to the adjusting assembly (831), so that the clamping roller (832) can rotate with the tire (1) when the tire (1) in the clamping state rotates relative to the bearing unit (2).

10. The test device of claim 9, wherein, The adjusting assembly (831) comprises an adjusting sleeve (8311) and a locking part (8312), the adjusting sleeve (8311) is sleeved on the clamping column (82), a first locking position is arranged on the adjusting sleeve (8311), and a plurality of second locking positions are arranged on the clamping column (82) in sequence along the extending direction of the clamping column (82), so that the adjusting sleeve (8311) is fixed on the clamping column (82) through the locking part (8312) when the first locking position corresponds to one of the second locking positions.

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