A dynamic performance detection device and detection method for radial tire

Abstract

The present invention discloses a dynamic performance detection device and detection method for a radial tire, which relates to the technical field of dynamic performance detection of tires, and includes a base plate, a transmission rod and a drive box, wherein the bottom of the drive box is fixedly connected to one side of the top of the base plate, one end of the transmission rod is movably connected to one side of the drive box, and the automobile tire is detachably mounted on the outside of the transmission rod, a driving motor for rotating the transmission rod is installed in the inner cavity of the drive box, a detection component for detecting the dynamic performance of the automobile tire is arranged on the outside of the base plate, and a buffer component for buffering the automobile tire is arranged inside the drive box. Through the mutual cooperation of the above-mentioned components, the tire pressure change of the automobile tire is observed through the tire pressure monitoring device to see whether it is within the normal range, thereby improving the comprehensiveness of automobile tire data detection and the safety of automobile tires in actual use.

Description

Technical Field

[0001] The invention relates to the technical field of dynamic performance detection of tires, and in particular to a dynamic performance detection device and a detection method for radial tires. Background Art

[0002] Radial tires are a type of tire structure. Different from bias tires, arch tires, and pressure-regulated tires, the international code for radial tires is "R", commonly known as steel wire tires. Tires are essential automotive components during vehicle driving. Tires encounter a variety of road conditions during vehicle driving. The dynamic performance that tires can withstand is different for different road conditions. After the tires are installed on specific vehicles, they can be better matched, give full play to the performance of the vehicle, and increase driving comfort. Radial tires account for a high proportion of vehicle use, and dynamic performance testing of radial tires is crucial.

[0003] According to the Chinese patent application with application number 202410050380.3, a dynamic performance detection device and detection method for a radial tire include a bottom frame, the upper surface of the bottom frame is fixedly connected to a support plate, a plurality of support legs are fixedly connected to a plane on the support plate, each of the support legs is fixedly connected to the fixed plate, a driving device body is connected to one side of the top of the support plate, one end of the driving device body is transmission-connected to a limiting rod, a second rack is also slidably connected to the upper surface of the support plate, a test plate is fixedly connected to the top of the second rack, and a plurality of evenly distributed bosses are fixedly connected to the upper surface of the test plate.

[0004] According to the above-cited application document, a car tire is fixed on the outside of a mounting rod, and then a driving motor is started to rotate the car tire along with the mounting rod, thereby simulating the state of the car tire during normal driving. At the same time, when the car tire is running at high speed, a cleaning device is used to remove foreign matter inside the tread of the car tire, thereby making the kinetic energy detection result of the car tire more accurate. However, during actual driving, the car will encounter road surfaces in different conditions. Obstacles such as roadside steps will attack the sidewalls of the car tire. In this application document, only a boss is used to hit the bottom of the rotating tire to detect the state of the car tire driving on a bumpy road, resulting in incomplete detection data for the car tire, which reduces the safety of the car tire in actual use. Summary of the invention

[0005] The object of the present invention is to provide a dynamic performance detection device and a detection method for a radial tire to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a dynamic performance detection device and detection method for a radial tire, comprising a base plate, a transmission rod and a drive box, the bottom of the drive box is fixedly connected to one side of the top of the base plate, one end of the transmission rod is movably connected to one side of the drive box, the automobile tire is detachably mounted on the outside of the transmission rod, a drive motor for rotating the transmission rod is installed in the inner cavity of the drive box, a detection component for detecting the dynamic performance of the automobile tire is arranged on the outside of the base plate, and a buffer component for buffering the automobile tire is arranged inside the drive box.

[0007] The detection component includes a conveyor belt and a telescopic plate. Two telescopic plates are symmetrically installed on both sides of the top of the bottom plate. The four telescopic plates are symmetrically distributed on both sides of the transmission rod. The conveyor belt is arranged directly above the transmission rod, and a collision block is fixedly installed on the outer wall of the conveyor belt. Support plates are symmetrically installed on both sides of the conveyor belt, and the telescopic ends of two adjacent telescopic plates are fixedly connected to the outer walls of the two support plates respectively.

[0008] The detection component also includes a hydraulic cylinder, wherein a bearing plate is arranged between the fixed ends of two adjacent telescopic plates, the two ends of the bearing plate are respectively fixedly connected to the fixed ends of the two adjacent telescopic plates, and a hydraulic cylinder is fixedly installed on the top of the bearing plate, and a connecting plate is fixedly installed on the power output end of the hydraulic cylinder, and the two ends of the connecting plate are respectively fixedly connected to the side walls of the telescopic ends of the two adjacent telescopic plates.

[0009] Preferably, a plurality of collision blocks of different shapes are fixedly mounted on the outer wall of the conveyor belt along its own rotation direction.

[0010] Preferably, sliding grooves are symmetrically installed on both sides of the top of the base plate, threaded holes are provided on the outer walls of the fixed ends of two adjacent telescopic plates, and a driving threaded rod is provided between the fixed ends of the two adjacent telescopic plates, and both ends of the driving threaded rod pass through the threaded holes and are rotatably connected to the inner walls of the sliding grooves, one end of the two driving threaded rods extends to the outside of the base plate, and the ends of the two driving threaded rods extending to the outside of the base plate are fixedly installed with tensioning wheels, the two tensioning wheels are rotatably connected by a tensioning belt, and a transmission motor is fixedly installed on the end of the base plate close to the tensioning wheel, and the power output end of the transmission motor is fixedly connected to one end of one of the tensioning wheels.

[0011] Preferably, a plurality of U-shaped plates are arranged inside the conveyor belt along its own rotation direction, and the two ends of the plurality of U-shaped plates are respectively fixedly connected to the adjacent sides of the two support plates, and rollers that fit the bottom of the inner cavity of the conveyor belt are rotatably installed in the inner cavity of the plurality of U-shaped plates through a rotating shaft.

[0012] Preferably, the buffer assembly includes a positioning plate and a brake plate, two brake plates are installed at the bottom of the inner cavity of the drive box, guide grooves are provided on the tops of the two brake plates, positioning plates are slidably installed in the inner cavities of the two guide grooves, and extrusion springs fixedly connected to the bottoms of the positioning plates are fixedly installed at the bottoms of the inner cavities of the two guide grooves, a limiting groove connected to its own inner cavity is provided in the vertical direction on one side of the drive box close to the transmission rod, wherein a mounting hole matching the transmission rod is provided on the positioning side of the positioning plate close to the limiting groove, the drive motor is fixedly connected to the top of the other positioning plate, one end of the transmission rod passes through the limiting groove and is inserted into the inner cavity of the mounting hole, and the power output end of the drive motor and one end of the transmission rod inserted into the inner cavity of the mounting hole are fixedly connected.

[0013] Preferably, a transmission bearing is fixedly sleeved on the outer wall of the transmission rod, and the outer wall of the transmission bearing is fixedly connected to the inner wall of the mounting hole.

[0014] Preferably, damping cylinders are symmetrically arranged on both sides of the positioning plate near the limiting groove, the fixed ends of the two damping cylinders are fixedly connected to the bottom of the inner cavity of the driving box, and the telescopic ends of the two damping cylinders are respectively fixedly connected to the two sides of the positioning plate.

[0015] Preferably, a slide groove is provided on the top of the base plate along the rotation direction of the transmission rod, a bidirectional threaded rod is rotatably installed in the inner cavity of the slide groove, and sliders are symmetrically sleeved on the outer wall of the bidirectional threaded rod through threaded cooperation, and cleaning boxes are fixedly installed on the top of the two sliders, and multiple rows of bristles for cleaning the outer wall of the automobile tire are fixedly installed on the adjacent side of the two cleaning boxes.

[0016] A method for detecting dynamic performance of a radial tire comprises the following steps:

[0017] A1. When the sidewall of a car tire needs to be tested, the conveyor belt is lifted by the telescopic plate, and then the four telescopic plates are pushed to move horizontally along the top of the bottom plate at the same time until the collision block moves to the side of the car tire, and then the height of the telescopic end of the telescopic plate is lowered until the outer wall of the collision block can contact the sidewall of the car tire, and then the telescopic plate is pushed to reset, so that the outer wall of the collision block collides with the sidewall of the car tire, and then the tire pressure monitoring device is used to observe whether the tire pressure change of the car tire is within the normal range.

[0018] A2. When the sidewall of a car tire needs to be tested, the conveyor belt is lifted by the telescopic plate, and then the four telescopic plates are pushed to move horizontally along the top of the bottom plate at the same time until the collision block moves to the side of the car tire, and then the height of the telescopic end of the telescopic plate is lowered until the outer wall of the collision block can contact the sidewall of the car tire, and then the telescopic plate is pushed to reset, so that the outer wall of the collision block collides with the sidewall of the car tire, and then the tire pressure monitoring device is used to observe whether the tire pressure change of the car tire is within the normal range.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention sets a detection component, controls the height between the collision block and the side of the automobile tire, and then rotates two driving threaded rods to control the distance between the collision block and the side of the automobile tire until the collision block can collide with the side of the automobile tire, and then observes through the tire pressure monitoring device whether the tire pressure change of the automobile tire is within a normal range, thereby improving the comprehensiveness of automobile tire data detection and the safety of automobile tires in actual use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0022] Figure 2 is a cross-sectional view of a drive box of the present invention;

[0023] Figure 3 This is the assembly drawing of the test component;

[0024] Figure 4 is a cross-sectional view of a conveyor belt of the present invention;

[0025] Figure 5 For the present invention Figure 2 A magnified view of the structure at center.

[0026] In the figure: 1, bottom plate; 2, driving threaded rod; 3, cleaning box; 4, bidirectional threaded rod; 5, brake plate; 6, positioning plate; 7, driving box; 8, transmission bearing; 9, transmission rod; 10, U-shaped plate; 11, telescopic plate; 12, extrusion spring; 13, damping cylinder; 14, hydraulic cylinder; 15, bearing plate; 16, connecting plate; 17, conveyor belt; 18, collision block; 19, support plate; 20, roller. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Example 1

[0029] See also Figure 1-5The present embodiment provides a dynamic performance detection device and detection method for a radial tire, comprising a base plate 1, a transmission rod 9 and a drive box 7, wherein the bottom of the drive box 7 is fixedly connected to one side of the top of the base plate 1, one end of the transmission rod 9 is movably connected to one side of the drive box 7, and the automobile tire is detachably mounted on the outside of the transmission rod 9, wherein the outer wall of the transmission rod 9 is fixedly sleeved with a limiting ring, and the outer wall is provided with a threaded groove and a nut for limiting the position of the automobile wheel hub, the automobile wheel hub is assembled to the outside of the transmission rod 9 until one end of the automobile wheel hub fits with one end of the limiting ring, and then the nut is sleeved on the outer wall of the transmission rod 9 until one end of the nut fits with the other end of the wheel hub, thereby positioning the automobile wheel hub with the cooperation of the threaded groove to prevent the automobile wheel hub from falling off from the outside of the transmission rod 9.

[0030] A driving motor for rotating the transmission rod 9 is installed in the inner cavity of the driving box 7, a detection component for detecting the dynamic performance of the automobile tire is arranged on the outside of the base plate 1, and a buffer component for buffering the automobile tire is arranged inside the driving box 7. Starting the driving motor can allow the automobile wheel hub to rotate with the transmission rod 9, which is conducive to simulating the rotation of the automobile tire.

[0031] Furthermore, a tire pressure monitoring device is installed at the inflation point of the automobile tire, which can accurately detect the tire pressure of the automobile tire while driving, and is helpful for judging the status of the automobile tire on different road surfaces by observing the changes in tire pressure in real time.

[0032] The detection component includes a conveyor belt 17 and a telescopic plate 11. Support plates 19 are symmetrically installed on both sides of the conveyor belt 17. The telescopic ends of two adjacent telescopic plates 11 are fixedly connected to the outer walls of the two support plates 19 respectively. Two telescopic plates 11 are symmetrically installed on both sides of the top of the base plate 1. The four telescopic plates 11 are symmetrically distributed on both sides of the transmission rod 9. The four telescopic plates 11 are symmetrically distributed with the middle of the conveyor belt 17 as the midpoint, which is beneficial to supporting the conveyor belt 17 and allowing the conveyor belt 17 to move repeatedly along the bottom of the base plate 1.

[0033] Two telescopic plates 11 are symmetrically installed on both sides of the top of the bottom plate 1, and the four telescopic plates 11 are symmetrically distributed on both sides of the transmission rod 9. The conveyor belt 17 is arranged directly above the transmission rod 9, and the outer wall of the conveyor belt 17 is fixedly installed with a collision block 18. When the automobile tire rotates with the transmission rod 9, the conveyor belt 17 is started, and the rotation direction of the conveyor belt 17 is opposite to the rotation direction of the automobile tire, so that the conveyor belt 17 and the automobile tire can move relative to each other, thereby truly simulating the driving state of the automobile tire on the road, and then the distance between the bottom of the conveyor belt 17 and the automobile tire is reduced by the telescopic plate 11 until the outer wall of the collision block 18 at the bottom of the conveyor belt 17 collides with the outer wall of the automobile tire.

[0034] Furthermore, when it is necessary to test the sidewall of the automobile tire, the conveyor belt 17 is lifted by the telescopic plate 11, and then the four telescopic plates 11 are pushed to move horizontally along the top of the bottom plate 1 at the same time until the collision block 18 moves to the side of the automobile tire, and then the height of the telescopic end of the telescopic plate 11 is lowered until the outer wall of the collision block 18 can contact the sidewall of the automobile tire, and then the telescopic plate 11 is pushed to reset, so that the outer wall of the collision block 18 collides with the sidewall of the automobile tire, and then the tire pressure monitoring device is used to observe whether the tire pressure change of the automobile tire is within the normal range, thereby improving the comprehensiveness of automobile tire data detection and the safety of automobile tires in actual use.

[0035] A plurality of collision blocks 18 of different shapes are fixedly mounted on the outer wall of the conveyor belt 17 along its rotation direction, wherein the collision blocks 18 of different shapes can simulate the state of a car tire moving on different bumpy roads.

[0036] The detection component also includes a hydraulic cylinder 14, wherein a bearing plate 15 is arranged between the fixed ends of two adjacent telescopic plates 11, and the two ends of the bearing plate 15 are respectively fixedly connected to the fixed ends of the two adjacent telescopic plates 11, and the hydraulic cylinder 14 is fixedly installed on the top of the bearing plate 15, wherein the bearing plate 15 can not only support the hydraulic cylinder 14, but also connect the fixed ends of the two adjacent telescopic plates 11, which is conducive to the synchronous movement of the two adjacent telescopic plates 11.

[0037] A connecting plate 16 is fixedly installed at the power output end of the hydraulic cylinder 14, and the two ends of the connecting plate 16 are respectively fixedly connected to the side walls of the telescopic ends of two adjacent telescopic plates 11. The connecting plate 16 can connect the telescopic ends of two adjacent telescopic plates 11. When the hydraulic cylinder 14 is started, the telescopic ends of the two telescopic plates 11 can be moved up and down at the same time and the telescopic ends after movement can be positioned, thereby improving the convenience of moving the telescopic ends of the telescopic plates 11 up and down.

[0038] Sliding grooves are symmetrically installed on both sides of the top of the bottom plate 1, and threaded holes are opened on the outer walls of the fixed ends of the two adjacent telescopic plates 11, and a driving threaded rod 2 is arranged between the fixed ends of the two adjacent telescopic plates 11. Both ends of the driving threaded rod 2 pass through the threaded holes and are rotatably connected to the inner wall of the sliding groove. The two driving threaded rods 2 are rotated at the same time, and the four telescopic plates 11 are repeatedly moved along the top of the bottom plate 1 with the cooperation of the threaded holes, and the telescopic plates 11 after movement are positioned.

[0039] Furthermore, the sliding groove can limit the sliding track of the telescopic plate 11, thereby preventing the telescopic plate 11 from deflecting and shaking when moving back and forth, which is beneficial to improving the stability of the telescopic plate 11 when moving back and forth.

[0040] One end of the two driving threaded rods 2 extends to the outside of the base plate 1, and the ends of the two driving threaded rods 2 extending to the outside of the base plate 1 are fixedly installed with tension wheels, and the two tension wheels are rotatably connected by a tensioning belt. A transmission motor is fixedly installed at the end of the base plate 1 close to the tensioning wheel, and the power output end of the transmission motor is fixedly connected to one end of one of the tensioning wheels. The transmission motor is started, and the tension wheel connected to the power output end of the transmission motor rotates, so that the tension wheel connected to the transmission motor transmits power to the other tension wheel through the tensioning belt, so that the two tension wheels rotate synchronously under the action of the tensioning belt, which is conducive to the synchronous rotation of the two driving threaded rods 2.

[0041] A plurality of U-shaped plates 10 are arranged inside the conveyor belt 17 along its own rotation direction, and the two ends of the plurality of U-shaped plates 10 are fixedly connected to the adjacent sides of the two support plates 19 respectively, and rollers 20 that are in contact with the bottom of the inner cavity of the conveyor belt 17 are installed in the inner cavity of the plurality of U-shaped plates 10 through a rotating shaft, wherein the plurality of rollers 20 press the bottom of the inner cavity of the conveyor belt 17 to prevent the collision block 18 at the bottom of the conveyor belt 17 from contacting the automobile tire, causing the bottom of the conveyor belt 17 to be deformed due to the collision, and to prevent the collision block 18 from actively separating from the outside of the automobile tire and causing an adverse effect on the kinetic energy detection of the automobile tire.

[0042] Furthermore, when the conveyor belt 17 rotates, the plurality of rollers 20 and the inner wall of the conveyor belt 17 rotate relative to each other, thereby reducing the resistance of the conveyor belt 17 during rotation and improving the smoothness of the rotation of the conveyor belt 17 .

[0043] Example 2

[0044] See also Figure 1-5 , further improvements made on the basis of Example 1:

[0045] The buffer assembly includes a positioning plate 6 and a brake plate 5. Two brake plates 5 are installed at the bottom of the inner cavity of the driving box 7. Guide grooves are provided on the tops of the two brake plates 5. Positioning plates 6 are slidably installed in the inner cavities of the two guide grooves, and extrusion springs 12 fixedly connected to the bottom of the positioning plates 6 are fixedly installed at the bottom of the inner cavities of the two guide grooves, wherein the extrusion springs 12 can provide a continuous thrust to the positioning plate 6 to slide away from the bottom of the inner cavity of the guide groove.

[0046] A limiting groove connected to the inner cavity of the driving box 7 is provided in the vertical direction on one side of the driving box 7 near the transmission rod 9, wherein a mounting hole matched with the transmission rod 9 is provided on the positioning side of the positioning plate 6 near the limiting groove, the driving motor is fixedly connected to the top of the other positioning plate 6, one end of the transmission rod 9 passes through the limiting groove and is inserted into the inner cavity of the mounting hole, the power output end of the driving motor and the end of the transmission rod 9 inserted into the inner cavity of the mounting hole are fixedly connected, and starting the driving motor can allow the transmission rod 9 to rotate. When the automobile tire contacts the outer wall of the collision block 18, the top of the automobile tire is subjected to force and deformed. At the same time, the collision block 18 applies pressure to the top of the automobile tire, causing the tops of the two positioning plates 6 to be subjected to force and slide toward the bottom of the guide groove. At this time, the top of the extrusion spring 12 is subjected to force and is compressed, thereby truly simulating the effect of the automobile tire being used in conjunction with the shock absorbing device when driving on a bumpy road, which is conducive to a more realistic restoration of the condition of the automobile tire driving on a bumpy road.

[0047] The outer wall of the transmission rod 9 is fixedly sleeved with a transmission bearing 8, and the outer wall of the transmission bearing 8 is fixedly connected to the inner wall of the mounting hole. The outer wall of the transmission rod 9 and the inner wall of the mounting hole can be rotatably connected by hand through the transmission bearing 8, which is conducive to the synchronization of the transmission rod 9 with the up and down movement of the positioning plate 6 without affecting its own rotation, thereby improving the stability of the rotation of the transmission rod 9.

[0048] The damping cylinders 13 are symmetrically arranged on both sides of the positioning plate 6 near the limiting groove, the fixed ends of the two damping cylinders 13 are fixedly connected to the bottom of the inner cavity of the driving box 7, and the telescopic ends of the two damping cylinders 13 are respectively fixedly connected to the two sides of the positioning plate 6. Under the action of the damping cylinders 13, the resistance of the extrusion spring 12 during compression and reset can be effectively increased, thereby playing a buffering role in the up and down sliding of the positioning plate 6, effectively preventing the rebound of the positioning plate 6 after the reset, and improving the stability of the rotation of the automobile tire.

[0049] A slide groove is provided on the top of the bottom plate 1 along the rotation direction of the transmission rod 9, and a bidirectional threaded rod 4 is rotatably installed in the inner cavity of the slide groove. The outer wall of the bidirectional threaded rod 4 is symmetrically sleeved with sliders through threaded cooperation, and a cleaning box 3 is fixedly installed on the top of the two sliders. A plurality of rows of bristles for cleaning the outer wall of the automobile tire are fixedly installed on the adjacent side of the two cleaning boxes 3. When the automobile tire rotates with the transmission rod 9, the bidirectional threaded rod 4 is rotated to allow the two cleaning boxes 3 to approach the automobile tire at the same time until the bristles on the side walls of the cleaning boxes 3 contact the outside of the automobile tire, which is conducive to removing foreign matter on the surface of the automobile tire.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dynamic performance testing device for a radial tire, characterized in that: The invention comprises a bottom plate (1), a transmission rod (9) and a drive box (7), wherein the bottom of the drive box (7) is fixedly connected to one side of the top of the bottom plate (1), one end of the transmission rod (9) is movably connected to one side of the drive box (7), a vehicle tire is detachably mounted on the outside of the transmission rod (9), a drive motor for rotating the transmission rod (9) is installed in the inner cavity of the drive box (7), a detection component for detecting the dynamic performance of the vehicle tire is arranged outside the bottom plate (1), and a buffer component for buffering the vehicle tire is arranged inside the drive box (7); The detection assembly comprises a conveyor belt (17) and a telescopic plate (11), two telescopic plates (11) are symmetrically installed on both sides of the top of the bottom plate (1), and the four telescopic plates (11) are symmetrically distributed on both sides of the transmission rod (9), the conveyor belt (17) is arranged directly above the transmission rod (9), and a collision block (18) is fixedly installed on the outer wall of the conveyor belt (17), and support plates (19) are symmetrically installed on both sides of the conveyor belt (17), and the telescopic ends of two adjacent telescopic plates (11) are respectively fixedly connected to the outer walls of the two support plates (19); The detection assembly further comprises a hydraulic cylinder (14), wherein a bearing plate (15) is arranged between the fixed ends of two adjacent telescopic plates (11), the two ends of the bearing plate (15) are respectively fixedly connected to the fixed ends of the two adjacent telescopic plates (11), and the hydraulic cylinder (14) is fixedly mounted on the top of the bearing plate (15), and a connecting plate (16) is fixedly mounted on the power output end of the hydraulic cylinder (14), and the two ends of the connecting plate (16) are respectively fixedly connected to the side walls of the telescopic ends of the two adjacent telescopic plates (11); A plurality of collision blocks (18) of different shapes are fixedly mounted on the outer wall of the conveyor belt (17) along its rotation direction; The top sides of the base plate (1) are symmetrically provided with sliding grooves, the outer walls of the fixed ends of the two adjacent telescopic plates (11) are provided with threaded holes, and a driving threaded rod (2) is provided between the fixed ends of the two adjacent telescopic plates (11), the two ends of the driving threaded rod (2) pass through the threaded holes and are rotatably connected to the inner wall of the sliding groove, one end of the two driving threaded rods (2) extends to the outside of the base plate (1), and the ends of the two driving threaded rods (2) extending to the outside of the base plate (1) are fixedly provided with tensioning wheels, and the two tensioning wheels are rotatably connected via a tensioning belt, and a transmission motor is fixedly provided at one end of the base plate (1) close to the tensioning wheel, and the power output end of the transmission motor is fixedly connected to one end of one of the tensioning wheels; The buffer assembly comprises a positioning plate (6) and a brake plate (5), two brake plates (5) are installed at the bottom of the inner cavity of the drive box (7), the tops of the two brake plates (5) are provided with guide grooves, the inner cavities of the two guide grooves are slidably provided with positioning plates (6), and the bottoms of the inner cavities of the two guide grooves are fixedly provided with extrusion springs (12) fixedly connected to the bottoms of the positioning plates (6), a side of the drive box (7) close to the transmission rod (9) is provided with a limiting groove connected to its own inner cavity along the vertical direction, wherein a mounting hole matching the transmission rod (9) is provided on the positioning side of the positioning plate (6) close to the limiting groove, the drive motor is fixedly connected to the top of another positioning plate (6), one end of the transmission rod (9) passes through the limiting groove and is inserted into the inner cavity of the installation hole, and the power output end of the drive motor and one end of the transmission rod (9) inserted into the inner cavity of the installation hole are fixedly connected.

2. The dynamic performance detection device of a radial tire according to claim 1, characterized in that: A plurality of U-shaped plates (10) are arranged inside the conveyor belt (17) along its own rotation direction, and the two ends of the plurality of U-shaped plates (10) are respectively fixedly connected to the adjacent sides of the two support plates (19), and a roller (20) that is in contact with the bottom of the inner cavity of the conveyor belt (17) is rotatably installed in the inner cavity of the plurality of U-shaped plates (10) via a rotating shaft.

3. The dynamic performance detection device of a radial tire according to claim 1, characterized in that: The outer wall of the transmission rod (9) is fixedly sleeved with a transmission bearing (8), and the outer wall of the transmission bearing (8) is fixedly connected to the inner wall of the mounting hole.

4. The dynamic performance detection device for a radial tire according to claim 1, characterized in that: Damping cylinders (13) are symmetrically arranged on both sides of the positioning plate (6) near the limiting groove, the fixed ends of the two damping cylinders (13) are fixedly connected to the bottom of the inner cavity of the driving box (7), and the telescopic ends of the two damping cylinders (13) are respectively fixedly connected to both sides of the positioning plate (6).

5. The dynamic performance detection device of a radial tire according to claim 1, characterized in that: A slide groove is provided on the top of the bottom plate (1) along the rotation direction of the transmission rod (9), a bidirectional threaded rod (4) is rotatably mounted in the inner cavity of the slide groove, a slider is symmetrically sleeved on the outer wall of the bidirectional threaded rod (4) through threaded engagement, a cleaning box (3) is fixedly mounted on the top of the two sliders, and a plurality of rows of bristles for cleaning the outer wall of a car tire are fixedly mounted on one side adjacent to the two cleaning boxes (3).

6. A method for detecting the dynamic performance of a radial tire, The dynamic performance detection device of a radial tire according to claim 1 is characterized in that: The steps include: A1. When the sidewall of the automobile tire needs to be tested, the conveyor belt (17) is lifted by the telescopic plate (11), and then the four telescopic plates (11) are pushed to move horizontally along the top of the bottom plate (1) at the same time until the collision block (18) moves to the side of the automobile tire, and then the height of the telescopic end of the telescopic plate (11) is lowered until the outer wall of the collision block (18) can contact the sidewall of the automobile tire, and then the telescopic plate (11) is pushed to reset, so that the outer wall of the collision block (18) collides with the sidewall of the automobile tire, and then the tire pressure monitoring device is used to observe whether the tire pressure change of the automobile tire is within the normal range; A2. When the sidewall of the automobile tire needs to be tested, the conveyor belt (17) is lifted by the telescopic plate (11), and then the four telescopic plates (11) are pushed to move horizontally along the top of the bottom plate (1) at the same time until the collision block (18) moves to the side of the automobile tire, and then the height of the telescopic end of the telescopic plate (11) is lowered until the outer wall of the collision block (18) can contact the sidewall of the automobile tire, and then the telescopic plate (11) is pushed to reset, so that the outer wall of the collision block (18) collides with the sidewall of the automobile tire, and then the tire pressure monitoring device is used to observe whether the tire pressure change of the automobile tire is within a normal range.

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