Tire detection equipment

Abstract

The invention provides tire detection equipment, and relates to the technical field of tire detection, the tire detection equipment comprises a machine box body, a test turntable is rotatably mounted on the machine box body, a tire is flatly placed on the top surface of the test turntable, a vertical column is fixedly mounted on the test turntable, a rotating block detachably sleeves the vertical column, and a plurality of side pressure brackets are mounted on the rotating block; the side pressing supports are arranged on the rotating block in an annular array mode, abutting rollers are rotationally installed on the side pressing supports, the abutting rollers abut against the tire, and the tire is clamped by the abutting rollers and the testing rotating disc. According to the tire detection equipment provided by the invention, through the arrangement of the machine box body, the test turntable, the vertical column, the rotating block, the pressing roller, the side pressing bracket, the lifting structure, the first rotation limiting structure and the second rotation limiting structure, a tire is extruded, then is subjected to camera shooting observation in a static state, and then is rolled, so that the tire detection efficiency is improved; and the fracture and crack conditions on the rolled tire are detected, so that the detection result is more accurate.

Description

Technical Field

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

[0002] Tires are circular elastic rubber products that roll on the ground and are usually installed on various vehicles or machines. They are usually installed on metal rims, can support the vehicle body, buffer external impacts, achieve contact with the road surface and ensure the driving performance of the vehicle; tires are often used under complex and harsh conditions, and they are subjected to various deformations, loads, forces, and high and low temperature effects when driving, so they must have high load-bearing performance, traction performance, and buffering performance; at the same time, they are also required to have high wear resistance and flexibility resistance, as well as low rolling resistance and heat generation.

[0003] In reality, tires need to be subjected to various quality inspections after production, such as whether there are cracks and other undesirable conditions on the tire surface that affect the product quality of the tire. The existing technology usually places the tire on a testing platform, and then uses an extrusion device (a cross, a cross or a disc, etc.) to squeeze the tire so that the tire is squeezed and deformed, and then the appearance of the squeezed and deformed tire is observed. However, the existing tire surface inspection equipment only inspects the appearance of the tire by naked eyes or a camera after squeezing the tire. After the tire is squeezed, that is, the tire is in a relatively static state, and some cracks on the surface of the tire cannot be displayed under the effect of a single squeeze, which will affect the inspection result. Summary of the invention

[0004] Based on the technical problems existing in the background technology, the present invention proposes a tire testing device.

[0005] A tire testing device proposed in the present invention comprises a machine box, a test turntable is rotatably mounted on the machine box, the tire is flatly placed on the top surface of the test turntable, a vertical column is fixedly mounted on the test turntable, a rotating block is detachably mounted on the vertical column, a plurality of side pressure brackets are mounted on the rotating block, the plurality of side pressure brackets are arranged in a ring array on the rotating block, a pressure roller is rotatably mounted on the side pressure bracket, the plurality of pressure rollers are pressed against the tire, and the plurality of pressure rollers and the test turntable clamp the tire; A lifting structure is installed on the machine box, and the lifting structure can drive the rotating block to move up and down; A No. 1 rotation limiting structure is installed on the rotating block. When the test turntable rotates forward, the No. 1 rotation limiting structure can convert the rotation of the vertical column into a synchronous follow-up rotation of the rotating block. When the test turntable rotates reversely, the rotating block does not rotate with the vertical column. A connecting cylinder is rotatably installed on the rotating block, and the connecting cylinder is mounted on the vertical column. A No. 2 rotation limiting structure is installed on the connecting cylinder, and the No. 2 rotation limiting structure can prevent the rotating block from rotating reversely on the connecting cylinder. When the test turntable rotates forward, the rotating block can follow the test turntable to rotate forward. When the test turntable rotates reversely, the test turntable cannot rotate on the connecting cylinder.

[0006] Preferably, the side pressure bracket comprises a horizontal block, a deformable connecting rod and an adjustment assembly; the number of the deformable connecting rods is two, the ends of the two deformable connecting rods are rotatably mounted on one side of the horizontal block, the other ends of the two deformable connecting rods are rotatably mounted on the rotating block, and the two deformable connecting rods are always in a parallel state; The pressure roller is rotatably mounted on a horizontal block, and the pressure roller is in a horizontal state; The adjusting assembly is used for adjusting the rotation of the deformable connecting rod on the rotating block.

[0007] Preferably, the adjustment assembly includes a threaded sleeve, a lifting cylinder and a transmission rod; the threaded sleeve is threadedly sleeved on the rotating block, the lifting cylinder is sleeved on the rotating block, the lifting cylinder can move up and down on the rotating block, the lifting cylinder is rotatably connected to the threaded sleeve, one end of the transmission rod is rotatably connected to the lifting cylinder, and the other end of the transmission rod is rotatably connected to one of the deformable connecting rods.

[0008] Preferably, the No. 1 rotation limiting structure includes a rotation limiting pin; teeth are arranged circumferentially on the outer periphery of the vertical column, a receiving groove is provided on the inner ring of the rotating block, the rotation limiting pin is rotatably installed in the receiving groove through a rotating shaft, a torsion spring is mounted on the rotating shaft of the rotation limiting pin, and the rotation limiting pin can be rotatably received in the receiving groove.

[0009] Preferably, the lifting structure includes an electric push rod and a transverse rod; the electric push rod is fixedly mounted on the machine box, the transverse rod is rotatably mounted on the output shaft of the electric push rod, and the connecting tube is fixedly mounted on the transverse rod.

[0010] Preferably, a positioning frustum is fixedly mounted on the top surface of the test turntable, the positioning frustum is sleeved on the vertical column, and the axis of the positioning frustum coincides with the axis of the vertical column.

[0011] Preferably, it further comprises a telescopic rod and a camera, an annular guide rail is installed on the machine box, the telescopic rod is installed on a slider of the annular guide rail, and the camera is fixedly installed on the output shaft of the telescopic rod.

[0012] Preferably, a motor is fixedly mounted on the machine housing, the test turntable is fixedly mounted on the output shaft of the motor, and a support tube is fixedly mounted on the machine housing; a plurality of ball grooves are provided on the top surface of the support tube, auxiliary balls are rotatably mounted in the ball grooves, and a limiting groove that slides with the auxiliary balls is provided on the bottom surface of the test turntable, and the auxiliary balls can roll in the limiting grooves.

[0013] A tire testing device proposed by the present invention has the following beneficial effects: through the machine box, test turntable, vertical column, rotating block, pressure roller, side pressure bracket, lifting structure, No. 1 rotation limiting structure and No. 2 rotation limiting structure, by squeezing the tire, then observing the tire by video when it is in a static state, and then rolling the tire, the fracture and crack conditions on the tire when being rolled are detected, so that the detection result is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of a tire testing device proposed by the present invention.

[0015] Figure 2 This is a cross-sectional view of a tire testing device proposed by the present invention.

[0016] Figure 3 The present invention is a schematic structural diagram of a side pressure bracket in a tire testing device.

[0017] Figure 4 This is a cross-sectional view of structures such as a vertical column and a rotating block in a tire testing device proposed by the present invention.

[0018] Figure 5 The present invention is a schematic structural diagram of a lifting cylinder in a tire testing device.

[0019] Figure 6 This is a structural cross-sectional view of a No. 1 rotation limiting structure in a tire testing device proposed by the present invention.

[0020] Figure 7 This is a structural cross-sectional view of a No. 2 rotation limiting structure in a tire testing device proposed by the present invention.

[0021] In the figure: 1. machine box; 2. test turntable; 3. vertical column; 4. rotating block; 5. pressure roller; 6. connecting tube; 7. horizontal block; 8. deformable connecting rod; 9. threaded sleeve; 10. lifting tube; 11. transmission rod; 12. rotation limit pin; 13. storage slot; 14. electric push rod; 15. transverse rod; 16. positioning round table; 17. telescopic rod; 18. camera; 19. motor; 20. support tube; 21. auxiliary ball. DETAILED DESCRIPTION

[0022] Reference Figure 1-Figure 7The present invention proposes a tire testing device, including a machine box 1, a test turntable 2 is rotatably mounted on the machine box 1, the test turntable 2 is placed horizontally, the tire is placed flat on the top surface of the test turntable 2, a vertical column 3 is fixedly mounted on the test turntable 2, a positioning round table 16 is fixedly mounted on the top surface of the test turntable 2, the positioning round table 16 is sleeved on the vertical column 3, and the axis of the positioning round table 16 coincides with the axis of the vertical column 3, the tire can be placed on the conical surface of the positioning round table 16, so that the tire is placed in the center, so that the axis of the tire coincides with the axis of the vertical column 3, the vertical column 3 is detachably sleeved with a rotating block 4, and a plurality of side pressure The bracket, multiple side pressure brackets are arranged in a ring-shaped positioning truncated table 16, and the tire sleeve is automatically adjusted on the conical surface of the positioning truncated table so that the tire is placed in the center. The bracket is arranged in an array on the rotating block 4, and a pressure roller 5 is rotatably installed on the side pressure bracket. Multiple pressure rollers 5 are pressed against the tire, and multiple pressure rollers 5 and the test turntable 2 clamp the tire; during specific operation, the tire is sleeved on the vertical column 3, the tire is sleeved on the positioning truncated table 16, and then the rotating block 4 is sleeved on the vertical column 3 so that the pressure rollers 5 on the multiple side pressure brackets are pressed against the top of the tire, so that the multiple pressure rollers 5 are pressed against the top of the flat tire, and the test turntable 2 is located below the tire to clamp the tire.

[0023] It also includes a telescopic rod 17 and a camera 18. An annular guide rail is installed on the machine box 1. The annular guide rail is an electric annular guide rail. The axis of the motion trajectory of the annular guide rail coincides with the axis of the vertical column 3. The telescopic rod 17 is installed on the slider of the annular guide rail. The camera 18 is fixedly installed on the output shaft of the telescopic rod 17. The distance between the camera 18 and the tire is controlled by the extension and retraction of the telescopic rod 17. During the specific test process, the camera 18 can stop at a certain position to perform video detection on the rotating tire, and can also be driven by the annular guide rail to perform circular motion to shoot and detect the periphery of the tire.

[0024] During the test, a lifting structure is installed on the machine box 1, and the lifting structure can drive the rotating block 4 to move up and down; the lifting structure works, and the lifting structure drives the rotating block 4, the side pressure bracket and the pressure roller 5 to descend synchronously, and squeeze the tire, so that the tire is deformed after being squeezed. When the tire is deformed, the cracks on the surface of the tire and the cracks at the break will open, which is easier to observe.

[0025] After the tire is squeezed and deformed, it is usually necessary to inspect and observe the appearance of the tire to see whether there is a crack on the tire surface and whether the size of the crack is within the standard range. In actual situations, the test turntable 2 is usually rotated, and the tire rotates synchronously with the test turntable 2. The rotating tire surface is then photographed and compared with the software and the naked eye of the staff to inspect the quality of the tire.

[0026] like Figure 2 and Figure 4 As shown in, a motor 19 is fixedly installed on the machine box 1, a test turntable 2 is fixedly installed on the output shaft of the motor 19, and a support cylinder 20 is fixedly installed on the machine box 1; a plurality of ball grooves are provided on the top surface of the support cylinder 20, and auxiliary balls 21 are rotatably installed in the ball grooves, and a limiting groove that slides with the auxiliary balls 21 is provided on the bottom surface of the test turntable 2, and the auxiliary balls 21 can roll in the limiting grooves. When the test turntable 2 rotates, it is supported by the support cylinder 20 and the auxiliary balls 21 to ensure the stability of the test turntable 2. A No. 1 rotation limiting structure is installed on the rotating block 4. When the test turntable 2 rotates forward, the No. 1 rotation limiting structure can convert the rotation action of the vertical column 3 into a synchronous follow-up rotation of the rotating block 4. When the test turntable 2 rotates in the reverse direction, the rotating block 4 4 does not rotate with the vertical column 3; during specific operation, the motor 19 rotates forward to drive the test turntable 2 to rotate. Since the rotating block 4 can rotate forward, the pressure roller 5 presses against the tire so that the tire is sunken at this position, and it is not convenient for the pressure roller 5 to roll in the sunken position. The test turntable 2 drives the tire to rotate synchronously through friction, and drives the pressure roller 5 to rotate at the same time, so that the tire is in a relatively static state (the tire, the test turntable 2, and the pressure roller 5 are all in a relatively static state) and rotates. At the same time, when the vertical column 3 rotates, due to the limiting effect of the No. 1 rotation limiting structure, the vertical column 3 drives the rotating block 4 to rotate synchronously through the No. 1 rotation limiting structure, ensuring the synchronization of the pressure roller 5, the test turntable 2 and the tire, and ensuring the relative static state of the tire.

[0027] like Figure 2As shown in the figure, after observing the tire surface in a relatively static state, there may still be cracks or breaks that are not displayed, such as horizontal cracks. A connecting tube 6 is rotatably installed on the rotating block 4, and the connecting tube 6 is mounted on the vertical column 3. A No. 2 rotation limiting structure is installed on the connecting tube 6. The No. 2 rotation limiting structure can prevent the rotating block 4 from rotating in the opposite direction on the connecting tube 6. When the test turntable 2 rotates forward, the rotating block 4 can follow the test turntable 2 to rotate forward. When the test turntable 2 rotates reversely, the test turntable 2 cannot rotate on the connecting tube 6. The motor 19 rotates in the reverse direction to drive the test turntable 2 to rotate in the reverse direction. Because there is friction between the tire and the test turntable 2, the tire can follow the test turntable 2 to rotate in the reverse direction synchronously, but because the rotating block 4 is limited by the No. 2 rotation limiting structure The side pressure bracket and the pressure roller 5 are restricted from making circular motion, so the rotating block 4 cannot rotate in the opposite direction synchronously with the tire. Since the tire rotates in the opposite direction with the test turntable 2, rolling friction occurs between the tire and the pressure roller 5. When the pressure roller 5 rolls on the tire, various positions of the tire are crushed and deformed. Some cracks will be exposed when they are crushed in turns and can be easily detected (since the pressure roller 5 squeezes the tire not on the surface, it will only squeeze part of the tire, and the adjacent parts will be deformed due to the influence of the deformed position. During the crushing process, various positions are crushed, so that the entire tire is in a state of changing shape at any time, which makes it easier for the fractures and cracks on the tire surface to be displayed).

[0028] In actual situations, tire sizes may be different. When testing tires of different sizes, it may be necessary to adjust the distance between the camera 18 and the tire to ensure clearer photography. However, in order to ensure that the cross can squeeze all types of tires, it needs to be able to completely press the tire. The cross needs to maintain a certain length. However, when measuring tires with small diameters, it may be necessary to adjust the distance between the camera 18 and the tire closer. During the rotation process, the end of the cross may collide with the camera 18, causing damage to the camera 18.

[0029] like Figure 1 , Figure 2 and Figure 3As shown in, the side pressure bracket includes a horizontal block 7, a deformable connecting rod 8 and an adjustment component; the number of the deformable connecting rods 8 is two, the ends of the two deformable connecting rods 8 are rotatably installed on one side of the horizontal block 7, and the other ends of the two deformable connecting rods 8 are rotatably installed on the rotating block 4. The rotating block 4 is provided with a limiting groove, and the ends of the deformable connecting rods 8 are rotatably installed in the limiting groove. The two deformable connecting rods 8 are always in a parallel state, that is, the rotating block 4, the two deformable connecting rods 8 and the horizontal block 7 form a parallelogram structure, and the pressure roller 5 is rotatably installed on the horizontal block 7. The pressure roller 5 is in a horizontal state, and the adjustment component is used to adjust the deformable connecting rods 8. The deformed connecting rod 8 rotates on the rotating block 4. In actual situations, when extrusion tests are performed on tires of different sizes, the adjusting component adjusts one of the deformed connecting rods 8 to rotate on the rotating block 4. Due to the characteristics of the parallelogram structure, the rotating block 4 is regarded as always keeping a vertical side, and after the deformed connecting rod 8 is tilted, the horizontal block 7 is consistent with the rotating block 4 and is always in a horizontal state. However, when the deformed connecting rod 8 is tilted, the horizontal distance between the horizontal block 7 and the rotating block 4 changes, thereby adapting to tires of different sizes, and enabling multiple pressure rollers 5 to be in a horizontal state and against the tire to ensure the squeezing of the tire.

[0030] like Figure 2 , Figure 4 and Figure 5 As shown in, the adjustment assembly includes a threaded sleeve 9, a lifting cylinder 10 and a transmission rod 11; the threaded sleeve 9 is threadedly sleeved on the rotating block 4, the lifting cylinder 10 is sleeved on the rotating block 4, the lifting cylinder 10 can move up and down on the rotating block 4, the inner ring wall of the lifting cylinder 10 is fixedly connected with a protrusion, the protrusion slides in the limiting groove on the rotating block 4, and limits the rotation of the lifting cylinder 10 on the rotating block 4, the lifting cylinder 10 is rotationally connected to the threaded sleeve 9, one end of the transmission rod 11 is rotationally connected to the lifting cylinder 10, and the other end of the transmission rod 11 is rotationally connected to one of the deformable connecting rods 8, and the transmission rod 11 is also located in the limiting groove. When adjusting the inclination of the deformable connecting rod 8, the threaded sleeve 9 is rotated, and the threaded sleeve 9 is rotated on the rotating block 4 , and lift and lower. When the threaded sleeve 9 is lifted or lowered, the lifting cylinder 10 will be driven to lift and lower synchronously. When the lifting cylinder 10 is lifted or lowered, the transmission rod 11 will be driven to lift and lower synchronously. When the transmission rod 11 is lifted or lowered, the deformed connecting rod 8 will be rotated on the rotating block 4, that is, the rotating points at both ends of the transmission rod 11 and the deformed connecting rod 8 form a triangular structure on the rotating block 4, thereby ensuring the position of the deformed connecting rod 8, thereby completing the deformation of the parallelogram structure, adjusting the horizontal distance between the horizontal block 7 and the rotating block 4, adapting to the tire of the corresponding size, reducing the collision between the horizontal block 7 and the camera 18 during the detection process, ensuring the protection of the camera 18, and also reducing the accidents caused by the horizontal block 7 scraping other objects.

[0031] like Figure 2 , Figure 4 , Figure 6 and Figure 7 As shown in the figure, the No. 1 rotation limiting structure includes a rotation limiting pin 12; the outer periphery of the vertical column 3 is circumferentially arranged with teeth, and the inner ring of the rotating block 4 is provided with a receiving groove 13. The rotation limiting pin 12 is rotatably installed in the receiving groove 13 through the rotating shaft. The rotating shaft of the rotation limiting pin 12 is provided with a torsion spring, and the rotation limiting pin 12 can be rotatably received in the receiving groove 13. The No. 1 rotation limiting structure and the No. 2 rotation limiting structure have the same structure, but the rotation limiting directions are opposite. When the motor 19 rotates forward, Figure 6 The middle vertical column 3 rotates clockwise, and the motor 19 drives the test turntable 2 and the vertical rod 3 to rotate synchronously. Since the rotation-limiting pin 12 abuts against the inner wall of the receiving groove 13 and cannot be received in the receiving groove 13, the rotating block 4, the side pressure bracket and the pressure roller 5 are driven to rotate synchronously. However, when the motor 19 rotates in the reverse direction ( Figure 6 The middle vertical column rotates counterclockwise), the limiting pin 12 will be received into the receiving groove 13, and the limiting principle of the rotating block 4, the connecting tube 6 and the second limiting structure is the same as above.

[0032] like Figure 1 and Figure 2 As shown in the figure, the lifting structure includes an electric push rod 14 and a transverse rod 15; the electric push rod 14 is fixedly installed on the machine box 1, the transverse rod 15 is rotatably installed on the output shaft of the electric push rod 14, and the connecting tube 6 is fixedly installed on the transverse rod 15. During the test, the electric push rod 14 drives the transverse rod 15 and the connecting tube 6 to lift and lower, which can complete the compression of the tire to varying degrees. Through different degrees of compression, the condition of the tire is observed to determine whether the tire is qualified. During disassembly, the electric push rod 14 is raised to separate the connecting tube 6 and the rotating block 4 from the vertical rod 3, and then the transverse rod 15 is rotated to offset the rotating block 4 to one side of the vertical rod 3, which is convenient for taking and placing the tire.

[0033] Specific operation: place the tire on the test turntable 2, adjust each pressure roller 5 to fit the size of the tire, adjust the distance between the camera 20 and the tire, then put the rotating block 4 on the vertical rod 3, drive multiple pressure rollers 5 to press against the tire, and let the electric push rod 14 work and descend to squeeze the tire. First rotate forward to observe the condition of the tire periphery, then reverse to photograph the appearance of the tire (the camera 20 also needs to rotate during reversal, but there is a speed difference with the rotation speed of the tire), then gradually increase the squeezing amplitude of the tire, and repeat the above operation.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A tire testing device, characterized in that: The invention comprises a machine box (1), a test turntable (2) is rotatably mounted on the machine box (1), a tire is placed flat on the top surface of the test turntable (2), a vertical column (3) is fixedly mounted on the test turntable (2), a rotating block (4) is detachably mounted on the vertical column (3), a plurality of side pressure brackets are mounted on the rotating block (4), the plurality of side pressure brackets are arranged in a ring array on the rotating block (4), a pressure roller (5) is rotatably mounted on the side pressure bracket, the plurality of pressure rollers (5) are pressed against the tire, and the plurality of pressure rollers (5) and the test turntable (2) clamp the tire; A lifting structure is installed on the machine box (1), and the lifting structure can drive the rotating block (4) to move up and down; The rotating block (4) is provided with a first rotation limiting structure. When the test turntable (2) rotates in the forward direction, the first rotation limiting structure can convert the rotation of the vertical column (3) into a synchronous follow-up rotation of the rotating block (4). When the test turntable (2) rotates in the reverse direction, the rotating block (4) does not follow the rotation of the vertical column (3). A connecting cylinder (6) is rotatably mounted on the rotating block (4), the connecting cylinder (6) being sleeved on the vertical column (3), and a second rotation limiting structure being mounted on the connecting cylinder (6), the second rotation limiting structure being capable of preventing the rotating block (4) from rotating in the reverse direction on the connecting cylinder (6); when the test turntable (2) rotates in the forward direction, the rotating block (4) is capable of rotating in the forward direction following the test turntable (2); when the test turntable (2) rotates in the reverse direction, the test turntable (2) is unable to rotate on the connecting cylinder (6).

2. A tire testing device according to claim 1, characterized in that: The side pressure bracket comprises a horizontal block (7), a deformable connecting rod (8) and an adjustment assembly; the number of the deformable connecting rods (8) is two, the ends of the two deformable connecting rods (8) are both rotatably mounted on one side of the horizontal block (7), the other ends of the two deformable connecting rods (8) are both rotatably mounted on the rotating block (4), and the two deformable connecting rods (8) are always in a parallel state; The pressing roller (5) is rotatably mounted on a horizontal block (7), and the pressing roller (5) is in a horizontal state; The adjustment assembly is used to adjust the rotation of the deformable connecting rod (8) on the rotating block (4).

3. A tire testing device according to claim 2, characterized in that: The adjustment assembly comprises a threaded sleeve (9), a lifting cylinder (10) and a transmission rod (11); the threaded sleeve (9) is threadedly sleeved on the rotating block (4), the lifting cylinder (10) is sleeved on the rotating block (4), the lifting cylinder (10) can move up and down on the rotating block (4), the lifting cylinder (10) is rotatably connected to the threaded sleeve (9), one end of the transmission rod (11) is rotatably connected to the lifting cylinder (10), and the other end of the transmission rod (11) is rotatably connected to one of the deformable connecting rods (8).

4. A tire testing device according to claim 1, characterized in that: The first rotation limiting structure comprises a rotation limiting pin (12); teeth are arranged circumferentially on the outer circumference of the vertical column (3); a receiving groove (13) is provided on the inner ring of the rotating block (4); the rotation limiting pin (12) is rotatably installed in the receiving groove (13) via a rotating shaft; a torsion spring is mounted on the rotating shaft of the rotation limiting pin (12); and the rotation limiting pin (12) can be rotatably received in the receiving groove (13).

5. A tire testing device according to claim 1, characterized in that: The lifting structure comprises an electric push rod (14) and a transverse rod (15); the electric push rod (14) is fixedly mounted on the machine box (1), the transverse rod (15) is rotatably mounted on the output shaft of the electric push rod (14), and the connecting tube (6) is fixedly mounted on the transverse rod (15).

6. A tire testing device according to claim 1, characterized in that: A positioning truncated table (16) is fixedly mounted on the top surface of the test turntable (2); the positioning truncated table (16) is sleeved on the vertical column (3), and the axis of the positioning truncated table (16) coincides with the axis of the vertical column (3).

7. A tire testing device according to claim 1, characterized in that: It also includes a telescopic rod (17) and a camera (18); an annular guide rail is installed on the machine box (1); the telescopic rod (17) is installed on a slider of the annular guide rail; and the camera (18) is fixedly installed on the output shaft of the telescopic rod (17).

8. The tire testing device according to claim 1, characterized in that: A motor (19) is fixedly mounted on the machine housing (1), the test turntable (2) is fixedly mounted on the output shaft of the motor (19), and a support tube (20) is fixedly mounted on the machine housing (1); a top surface of the support tube (20) is provided with a plurality of ball grooves, in which auxiliary balls (21) are rotatably mounted, and a bottom surface of the test turntable (2) is provided with a limit groove that slidably cooperates with the auxiliary balls (21), and the auxiliary balls (21) are capable of rolling in the limit grooves.

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