A device for detecting a vehicle tire

Abstract

The application relates to the technical field of tire detection, in particular to an automobile tire detection device which comprises a tire detection support fixedly connected to the ground, two lifting devices fixedly connected to opposite sides of the tire detection support, a connecting support with two lifting ends connected to the two lifting devices respectively, a tire driving device arranged on the connecting support, the tire driving device being used for driving at least two tires connected to the connecting support, a tire detection module arranged above the tires on the connecting support, a wear detection table connected to the lower part of the tire detection support and located directly below the tires, a controller and a display both arranged on the tire detection support and electrically connected to the tire detection module and the display respectively. The lifting devices are adjusted to facilitate the contact between tires with different diameters and the wear detection table, and the contact force between the tires and the wear detection table can be adjusted; two or more tires are synchronously detected, and the detection efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of quality inspection technology in the automotive tire production process, and in particular to an automotive tire inspection device. Background Technology

[0002] Currently, statistics show that 46% of traffic accidents on highways are caused by tire failure. Clearly, tire quality issues have undeniably made them the "number one killer" in traffic accidents. Quality inspection technologies in the tire manufacturing process are receiving increasing attention. Current tire inspection devices have the following problems: 1. They typically inspect only one tire, resulting in low inspection efficiency; 2. The tire mounting height is usually fixed, making it inconvenient to adjust the tire height as needed. Summary of the Invention

[0003] The present invention provides an automobile tire testing device to solve at least one of the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the present invention discloses an automobile tire testing device, comprising:

[0005] A tire inspection bracket, which is fixedly connected to the ground;

[0006] Two lifting devices are fixedly connected to opposite sides of the tire inspection bracket;

[0007] The connecting bracket is connected at both ends to the lifting ends of the two lifting devices respectively;

[0008] A tire drive device is mounted on a connecting bracket and is used to drive at least two tires connected to the connecting bracket. A tire detection module is mounted on the connecting bracket and above the tires.

[0009] The wear detection platform is connected to the lower part of the tire inspection bracket and is located directly below the tire;

[0010] The controller and the display are both mounted on the tire detection bracket, and the controller is electrically connected to the tire detection module and the display respectively.

[0011] Preferably, the lower end of the connecting bracket is further connected to a tire mounting device, the tire mounting device including: a first leg and a second leg;

[0012] The first leg is connected to the left side of the connecting bracket;

[0013] The second leg is located to the right of the first leg. The second leg is vertically connected to the lower end of the connecting bracket. The second legs are arranged alternately from left to right. Each second leg is rotatably connected to the tire rotation shaft.

[0014] There is a tire between the first and second second legs, and another tire between the third and fourth second legs;

[0015] The tire drive device is located on the intermediate connecting plate between the third and fourth second legs. The tire drive device is a servo drive motor, which is used to drive the tire rotation shaft to rotate.

[0016] Preferably, the tire detection module includes: a mounting block, on which an infrared ranging sensor and a first camera device are mounted, the infrared ranging sensor and the first camera device being electrically connected to the controller; the mounting block is fixedly connected to the connecting bracket.

[0017] Preferably, the lifting device includes: a drive motor, a vertical lead screw, a vertical guide rail, and a lead screw slider;

[0018] The vertical guide rail is fixedly connected to one side of the tire detection bracket; the drive motor is fixedly connected to the upper end of the vertical guide rail; the shaft end of the drive motor is connected to the vertical lead screw, and the vertical lead screw is rotatably connected to the tire detection bracket; the vertical lead screw is provided with a lead screw slider, and the lead screw slider is slidably connected to the vertical guide rail.

[0019] Preferably, it further includes: a braking device, wherein a braking device is provided on one side of the tire drive device, and the braking device is disposed on the intermediate connecting plate; the braking device is a disc brake.

[0020] Preferably, a soap water testing tank is provided at the lower part of the tire testing bracket;

[0021] The wear detection platform is equipped with auxiliary roller brackets on both the front and rear sides, and auxiliary rollers are connected to the auxiliary roller brackets.

[0022] Preferably, the wear detection station is a multi-functional detection station, which includes:

[0023] Mounting base, wherein a first chamber is provided in the middle of the mounting base;

[0024] The platform body has a first connecting seat fixedly connected to its lower end, and a spiral water pipe is embedded in the upper end of the first connecting seat.

[0025] Two sets of limiting and connecting structures are set inside the mounting base, and the two sets of limiting and connecting structures are symmetrically arranged on the left and right sides of the first chamber. The limiting and connecting structures are used to connect the first water inlet of the left or right side of the first connecting base.

[0026] Two sets of drive connection structures are set inside the mounting base, and the two sets of drive connection structures correspond one-to-one with the two sets of limit and communication structures.

[0027] The vertical telescopic drive component has its fixed end fixedly connected to the inner wall of the lower end of the first chamber;

[0028] The first horizontal connecting rod is fixedly connected to the telescopic end of the vertical telescopic drive component. The vertical telescopic drive component drives the two sets of drive connection structures to work through the first horizontal connecting rod.

[0029] Preferably, the limiting and connecting structure includes: a second chamber, comprising a horizontal chamber and a vertical chamber, the vertical chamber being connected to the side of the horizontal chamber near the first connecting seat; a sealing plate, slidably connected to the interior of the vertical chamber in the vertical direction, with a spring fixedly connected between the lower end of the sealing plate and the lower inner wall of the vertical chamber; a supporting limiting block, fixedly connected to the side of the sealing plate near the first connecting seat, and the supporting limiting block penetrating the side of the vertical chamber near the first connecting seat, the lower end of the first connecting seat being used to support the upper end of the supporting limiting block; a water tank, slidably connected to the interior of the horizontal chamber, with a water outlet rod connected to the right end of the water tank, the end of the water outlet rod away from the water tank being used to connect to the first water inlet; a second horizontal connecting rod, fixedly connected to the end of the water tank away from the water outlet rod, the end of the second horizontal connecting rod away from the water tank having an arc-shaped protrusion; and a second spring, with both ends fixedly connected to the water tank and the inner wall of the horizontal chamber respectively.

[0030] The drive connection structure includes: a third chamber, disposed within the mounting base and located on the side of the second chamber away from the first chamber, with the arc-shaped protrusion located within the third chamber; a drive mating block, slidably connected within the third chamber in the vertical direction, with a drive ramp on the side of the drive mating block that is close to each other, the height of the side of the two drive ramps that are close to each other being higher than the height of the side of the two drive ramps that are far apart from each other; and a drive mating rod, slidably passing through the lower end of the third chamber in the vertical direction, with the upper end of the drive mating rod fixedly connected to the lower end of the drive mating block, and the lower end of the drive mating rod fixedly connected to the upper end of a horizontal connecting rod.

[0031] Preferably, the multi-functional testing station also includes:

[0032] Two sets of auxiliary structures are symmetrically arranged on the left and right sides of the upper end of the mounting base. Each auxiliary structure includes: a fixed box, fixedly connected to the left or right side of the upper end of the mounting base, with the platform located between the two fixed boxes; a third horizontal connecting rod, the lower end of which is slidably connected to the inner wall of the lower end of the fixed box via a first slider along the left-right direction; a horizontal telescopic drive component, the fixed end of which is fixedly connected to the inner wall of the fixed box, and the telescopic end of which is fixedly connected to the first slider or the third horizontal connecting rod; and auxiliary blocks, fixedly connected to the upper end of the third horizontal connecting rod, with auxiliary inclined surfaces provided on the sides of the auxiliary blocks that are close to each other. The height of one side is lower than the height of the side of the auxiliary inclined plane that is far away from each other; a fixed block is fixedly connected to the inner wall of the front or rear side of the fixed box; a lifting rod slides through the fixed block, and a mounting plate is fixedly connected to the upper end of the lifting rod, and a detector is fixedly connected to the upper end of the mounting plate; a second mounting plate is installed at one end of the horizontal connecting rod that is close to each other, and the second mounting plate is used to install the second detector; the upper end of the fixed box is provided with the inlet and outlet of the first detector, and the side wall of the fixed box is provided with the inlet and outlet of the second detector; an auxiliary rod is fixedly connected to the lower end of the lifting rod, and an auxiliary ball is provided on one side of the auxiliary rod, and the auxiliary ball is slidably connected to the auxiliary inclined plane.

[0033] Preferably, both the first and second legs include: a lower fixed leg, the tire rotation shaft being rotatably connected to the lower fixed leg; an upper fixed leg, fixedly connected to the lower end of the connecting bracket, the upper fixed leg and the lower fixed leg being connected by an elastic connector; the lower end of the connecting bracket is also provided with several loading devices, the loading devices being used to apply loading force to the lower fixed leg; the surface of the wear detection table is provided with a concrete test area or an asphalt road test area.

[0034] The vehicle tire inspection device also includes:

[0035] A speed sensor is used to detect the rotational speed of the tire's axle.

[0036] Force detection device, used to detect the loading force of the loading device on the lower fixed leg;

[0037] A distance detection device is used to detect the vertical distance between the center of the tire rotation axis and the concrete test area or asphalt road test area.

[0038] A camera device is used to acquire an image of the actual surface of the tire after the drive unit has been operating for a preset time N.

[0039] An image processing device is electrically connected to the camera device. The image processing device includes: a segmentation module, used to divide the actual surface image of the tire after the drive device has been working for a preset time N into M actual sub-images; and a storage module, which stores the M standard sub-images divided from the standard surface image of the tire after the drive device has been working for a preset time N.

[0040] A controller, alarm one, and alarm two are included. The controller is electrically connected to a pressure detection device, a distance detection device, a camera device, an image processing device, alarm one, and alarm two, respectively. The controller controls the operation of alarm one and alarm two based on the pressure detection device, distance detection device, camera device, and image processing device, and includes:

[0041] The first evaluation coefficient P is calculated based on the distance detection device. When the first evaluation coefficient is less than the first preset value, the controller controls the alarm to work.

[0042]

[0043] H is the distance detection value detected by the distance detection device during the operation of the drive device, H0 is the reference value of the vertical distance between the center of the tire rotation axis and the concrete test area or asphalt road test area corresponding to G, and G is the force between a single tire and the contact surface of the concrete test area or asphalt road test area.

[0044] When alarm one does not alarm, the wear assessment coefficient Q is calculated based on the speed sensor, camera device, image processing device, and formula (2). When the wear assessment coefficient Q is not within the range of the preset benchmark assessment coefficient, the controller controls alarm two to alarm.

[0045]

[0046] V is the reference wear volume of the tire after the drive unit has been operating for a preset time N; A is the wear coefficient between the tire and the concrete or asphalt road test area; B is the tire radius; π is 3.14; n is the value detected by the speed sensor; D is the Brinell hardness of the tire; K i ∑F1 represents the similarity between the i-th actual sub-image and the standard sub-image; F2 represents the maximum loading force on the two adjacent second legs on the left and right sides of the tire; F1 represents the minimum loading force on the two adjacent second legs on the left and right sides of the tire; ∑F3 represents the maximum sum of loading forces on the left or right side of the tire; ∑F0 represents the minimum sum of loading forces on the left or right side of the tire; ω1 and ω2 are the first and second adjustment coefficients, respectively; e is the natural constant; ln is the natural logarithm.

[0047] The beneficial effects of this invention are as follows: In the tire production process, the tire inspection bracket provides support for the entire inspection device during the inspection stage. The lifting device connected to the tire inspection bracket enables reciprocating up-and-down movement, adjusting the height of the tire from the wear inspection table. Since the height of the wear inspection table is fixed during inspection, adjusting the lifting device facilitates contact between tires of different diameters and the wear inspection table, and also allows adjustment of the contact force between the tire and the wear inspection table. The tire drive device operates, thereby driving the tire rotation shaft to rotate, which in turn drives two tires to rotate synchronously. The above technical solution enables simultaneous inspection of two or more tires. Multiple wear inspection tables can also be set up simultaneously, or a wear inspection table and the soap water inspection tank described below can be set up to achieve simultaneous inspection of different tests. The above simultaneous inspection of two or more tires improves inspection efficiency. This invention solves the following problems of current tire inspection devices: 1. They usually inspect a single tire, resulting in low inspection efficiency; 2. The height of the tire mounting point is usually fixed, making it inconvenient to adjust the tire height as needed.

[0048] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description, claims, and drawings.

[0049] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0050] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0051] Figure 1 This is an overall schematic diagram of one embodiment of the automobile tire testing device of the present invention;

[0052] Figure 2 This is a schematic diagram of the auxiliary roller and wear detection platform of the present invention;

[0053] Figure 3 This is a schematic diagram of the tire of the present invention located in the soapy water detection tank;

[0054] Figure 4 This is a schematic diagram of the structure of the multifunctional testing station of the present invention;

[0055] Figure 5 for Figure 4 Enlarged view of the structure at point A in the middle.

[0056] In the diagram: 1. Connecting bracket; 2. Lifting device; 21. Drive motor; 22. Vertical lead screw; 23. Vertical guide rail; 24. Lead screw slider; 3. Wear detection table; 31. Mounting base; 32. Platform body; 33. First connecting seat; 34. First water inlet; 35. Vertical telescopic drive component; 36. Horizontal connecting rod one; 37. Spring one; 38. First chamber; 39. Second chamber; 310. Sealing plate; 311. Support limiting block; 312. Water tank; 313. Water outlet rod; 314. Horizontal connecting rod two; 315. Third chamber; 316. Drive mating block; 317. Drive mating rod 318. Fixed box; 319. First slider; 320. Horizontal telescopic drive component; 321. Auxiliary block; 322. Auxiliary inclined plane; 323. Fixed block; 324. Lifting rod; 325. Mounting plate two; 326. Mounting plate one; 327. Auxiliary rod; 328. Auxiliary ball; 329. Horizontal connecting rod three; 4. Soap water detection tank; 5. First leg; 6. Second leg; 7. Tire; 8. Tire rotation shaft; 9. Intermediate connecting plate; 10. Mounting block; 11. Tire detection bracket; 12. Braking device; 13. Servo drive motor; 14. Auxiliary roller bracket; 15. Auxiliary roller. Detailed Implementation

[0057] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0058] Furthermore, in this invention, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the invention. They are merely used to distinguish components or operations described using the same technical terms and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions and features of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0059] Example 1, as Figure 1 As shown, the present invention discloses an automobile tire testing device, comprising:

[0060] Tire inspection bracket 11, the tire inspection bracket 11 is fixedly connected to the ground;

[0061] Two lifting devices 2 are fixedly connected to opposite sides of the tire inspection bracket 11, respectively;

[0062] The connecting bracket 1 is connected at both ends to the lifting ends of the two lifting devices 2 respectively;

[0063] A tire drive device is provided on a connecting bracket 1. The tire drive device is used to drive at least two tires 7 connected to the connecting bracket 1. A tire detection module is provided on the connecting bracket 1 above the tires 7.

[0064] Wear detection platform 3 is connected to the lower part of tire detection bracket 11 and is located directly below tire 7; wherein, wear detection platform 3 can also refer to the existing tire detection friction block;

[0065] The controller and the display are both mounted on the tire detection bracket 11, and the controller is electrically connected to the tire detection module and the display respectively.

[0066] Optionally, the lower end of the connecting bracket 1 is also connected to a tire mounting device, which includes: a first leg 5 and five second legs 6;

[0067] The first leg 5 is connected to the left side of the connecting bracket 1;

[0068] The second leg 6 is located to the right of the first leg 5. The second leg 6 is vertically connected to the lower end of the connecting bracket 1. Five second legs 6 are arranged alternately from left to right. Each second leg 6 is rotatably connected to the tire rotating shaft 8.

[0069] A tire 7 is provided between the first second leg 6 and the second second leg 6, and another tire 7 is provided between the third second leg 6 and the fourth second leg 6;

[0070] The tire drive device is located on the intermediate connecting plate 9 between the third second leg 6 and the fourth second leg 6. The tire drive device is a servo drive motor 13, which is used to drive the tire rotation shaft 8 to rotate.

[0071] Optionally, the lifting device 2 includes: a drive motor 21, a vertical lead screw 22, a vertical guide rail 23, and a lead screw slider 24;

[0072] The vertical guide rail 23 is fixedly connected to one side of the tire detection bracket 11; the drive motor 21 is fixedly connected to the upper end of the vertical guide rail 23; the shaft end of the drive motor 21 is connected to the vertical lead screw 22, and the vertical lead screw 22 is rotatably connected to the tire detection bracket 11; the vertical lead screw 22 is provided with a lead screw slider 24, and the lead screw slider 24 is slidably connected to the vertical guide rail 23. During operation, the drive motors 21 at the top of the two lifting devices 2 rotate synchronously, driving the vertical lead screw 22 to rotate, and then the vertical lead screw 22 drives the lead screw slider 24 to slide up and down along the vertical guide rail 23. The connecting bracket 1 is fixedly connected to the lead screw slider 24, and the lifting and lowering of the connecting bracket 1 is achieved as the lead screw slider 24 slides up and down.

[0073] Optionally, it also includes: a braking device, wherein a braking device is provided on one side of the tire drive device and the braking device is mounted on the intermediate connecting plate 9; the braking device 12 is a disc brake. The disc brake in the detection device is responsible for braking the tire rotation shaft 8 to complete the tire 7 surface braking condition wear detection test.

[0074] The figure shows two tires 7, but multiple tires 7 can also be set, such as between the second second leg 6 and the third second leg 6, or the number of second legs 6 can be increased, and tires 7 can be set between adjacent second legs 6;

[0075] The working principle and beneficial effects of the above technical solution: In the inspection stage of the tire 7 production process, the tire inspection bracket 11 provides support for the entire inspection device. The lifting device 2 connected to the tire inspection bracket 11 enables the reciprocating up and down movement, adjusting the height of the tire 7 from the wear inspection table 3. Since the height of the wear inspection table 3 is fixed during inspection, adjusting the lifting device 2 facilitates contact between tires 7 of different diameters and the wear inspection table 3, and also adjusts the contact force between the tire 7 and the wear inspection table 3. The tire drive device operates, thereby driving the tire rotating shaft 8 to rotate, and the rotation of the tire rotating shaft 8 drives the two tires 7 to rotate synchronously. The above technical solution enables the simultaneous inspection of two or more tires 7. Multiple wear inspection tables 3 can also be set up simultaneously, or a wear inspection table 3 and the soap water inspection tank 4 described below can be set up to achieve simultaneous inspection of different tests. The above simultaneous inspection of two or more tires 7 improves the inspection efficiency.

[0076] This invention solves the following problems of current tire inspection devices: 1. They usually inspect a single tire 7, resulting in low inspection efficiency; 2. The height of the tire 7 mounting point is usually fixed, making it inconvenient to adjust the height of the tire 7 as needed.

[0077] The tire inspection module is used to inspect the tire during rotation or before and after a tire rotation test, and displays the inspection results on a monitor.

[0078] Example 2, based on Example 1, such as Figure 2 and Figure 3 As shown, optionally, the tire detection module includes: a mounting block 10, on which an infrared ranging sensor and a first camera device are mounted, and the infrared ranging sensor and the first camera device are electrically connected to the controller respectively; the mounting block 10 is fixedly connected to the connecting bracket 1.

[0079] A soap water testing tank 4 is provided at the lower part of the tire testing bracket 11;

[0080] The wear testing platform 3 has auxiliary roller supports 14 on both the front and rear sides, and auxiliary rollers 15 are connected to the auxiliary roller supports 14. The upper end of the wear testing platform 3 can be set with a concrete test area or an asphalt road test area, respectively set as a concrete pavement or an asphalt pavement; or the wear state can be determined by comparing the image after wear acquired by the camera device with the image before wear testing.

[0081] The working principle and beneficial effects of the above technical solution are as follows: A tire detection module is installed above the two tires 7 (a tire detection module can also be installed on the inner side of the adjacent second support leg as needed). When the tires 7 are stationary and not rotating, the camera device in the tire detection module acquires image information of the stationary state of the tires 7, including the external dimensions, lateral width, and surface tread of the tires 7, which can be used to inspect the appearance quality of the tires 7; the distance sensor in the tire detection module detects the depth of the tread on the surface of the tires 7 (it can measure the distance between the distance sensor and the target position on the tire surface, and also detect the tire size). The surface of the wear detection platform 3 is distributed with concrete test areas or asphalt road test areas, mainly to simulate the influence of different road conditions of concrete road surface and asphalt road surface on the wear of the tire surface 7, and the wear state of the two road surfaces is recorded by the camera device and the distance sensor; the tires 7 are immersed in the soap water test tank 4, and the tires 7 complete one rotation to perform an air tightness test, and the camera device records whether there are air bubbles on the surface of the tires 7. The auxiliary rollers 15 located at the front and rear of the test platform are in contact with the surface of the tires 7 to prevent radial displacement and jumping caused by loading force or other reasons when the tires 7 rotate.

[0082] Example 3, based on Example 1 or 2, such as Figure 4-5 As shown, the wear testing station 3 is a multi-functional testing station, which includes:

[0083] Mounting base 31, wherein a first chamber 38 is provided in the middle of the mounting base 31;

[0084] The platform 32 has a first connecting seat 33 fixedly connected to its lower end, and a spiral water pipe is embedded in the upper end of the first connecting seat 33; wherein, the spiral water pipe can be connected to a water pump.

[0085] Two sets of limiting and connecting structures are set in the mounting base 31, and the two sets of limiting and connecting structures are symmetrically arranged on the left and right sides of the first chamber 38. The limiting and connecting structures are used to connect the first water inlet 34 on the left or right side of the first connecting base 33.

[0086] Two sets of drive connection structures are set inside the mounting base 31, and the two sets of drive connection structures correspond one-to-one with the two sets of limit and communication structures.

[0087] The vertical telescopic drive component 35 has its fixed end fixedly connected to the lower inner wall of the first chamber 38;

[0088] The horizontal connecting rod 36 is fixedly connected to the telescopic end of the vertical telescopic drive component 35. The vertical telescopic drive component 35 drives the two sets of drive connection structures to work through the horizontal connecting rod 36.

[0089] The limiting and connecting structure includes: a second chamber 39, comprising a horizontal chamber and a vertical chamber, the vertical chamber being connected to the side of the horizontal chamber near the first connecting seat 33; a sealing plate 310, slidably connected to the interior of the vertical chamber in the vertical direction, with a spring 37 fixedly connected between the lower end of the sealing plate 310 and the lower inner wall of the vertical chamber; and a supporting limiting block 311, fixedly connected to the side of the sealing plate 310 near the first connecting seat 33, and the supporting limiting block 311 penetrating the side of the vertical chamber near the first connecting seat 33. The lower end of 33 is used to support the upper end of the support limiting block 311; the water tank 312 is slidably connected to the interior of the horizontal chamber, and the right end of the water tank 312 is connected to the water outlet rod 313, the end of the water outlet rod 313 away from the water tank 312 is used to connect to the first water inlet 34; the second horizontal connecting rod 314 is fixedly connected to the end of the water tank 312 away from the water outlet rod 313, and the end of the second horizontal connecting rod 314 away from the water tank 312 is provided with an arc-shaped protrusion; the second spring has two ends fixedly connected to the water tank 312 and the interior wall of the horizontal chamber respectively.

[0090] The drive connection structure includes: a third chamber 315, disposed within the mounting base 31, and located on the side of the second chamber 39 away from the first chamber 38; the arc-shaped protrusion is located within the third chamber 315; a drive mating block 316, slidably connected to the third chamber 315 in the vertical direction; a drive ramp is provided on the side of the drive mating blocks 316 that is close to each other, and the height of the side of the two drive ramps that are close to each other is higher than the height of the side of the two drive ramps that are far apart; and a drive mating rod 317, slidably passing through the lower end of the third chamber 315 in the vertical direction; the upper end of the drive mating rod 317 is fixedly connected to the lower end of the drive mating block 316, and the lower end of the drive mating rod 317 is fixedly connected to the upper end of the horizontal connecting rod 36. The vertical telescopic drive component can be a vertical electric telescopic rod.

[0091] The working principle and beneficial effects of the above technical solution are as follows:

[0092] In the initial state, the sealing plate 310 seals the end of the water outlet rod 313 away from the water tank 312, thus sealing the water outlet rod 313. The upper end of the first connecting seat 33 is integrally fixed with platforms 32 of different sizes and / or platforms 32 of different materials (different surfaces can be provided on the upper end of the platform 32). When different platforms 32 are installed, the lower end of the first connecting seat 33 at the lower end of the platform 32 is pressed against the support limiting block 311. Simultaneously, the vertical telescopic drive component 35 is controlled to retract downwards. Under the gravity of the platform 32 and the first connecting seat 33, the support limiting block 311 moves downwards to the limiting position. At this time, the sealing plate 310 moves downwards to open the water outlet rod 313; the vertical telescopic drive component 35 retracts downwards, driving the horizontal connecting rod 36 and the driving mating rod 3... 17. The drive block 316 moves downward, driving the two arc-shaped protrusions closer together via the drive inclined surface. This causes the two horizontal connecting rods 314 to move closer together, which in turn drives the two outlet rods 313 closer together via the water tank 312. The outlet rods 313 then insert into the corresponding first inlet 34, allowing water from the water tank 312 to enter the spiral water pipe through the outlet rods 313 and the first inlet 34. The water tank 312 can be equipped with a temperature regulating device to adjust the water temperature. This allows for temperature regulation of the platform 32 via different water temperatures in the spiral water pipe, simulating the wear state of the tires 7 at different temperatures on the platform 32. The insertion of the outlet rods 313 into the outlet provides lateral restraint to the platform 32 and the first connecting seat 33 as a whole. This technical solution achieves sealing and opening of the outlet rods 313, water level adjustment of the platform 32, restraint of the platform 32 and the connecting seat as a whole, and better functionality of the platform 32, offering multi-functional advantages.

[0093] Example 4, based on Example 3, such as Figure 4-5 As shown, the multi-functional testing station also includes:

[0094] Two sets of auxiliary structures are symmetrically arranged on the left and right sides of the upper end of the mounting base 31. Each auxiliary structure includes: a fixed box 318, fixedly connected to the left or right side of the upper end of the mounting base 31, with the platform 32 located between the two fixed boxes 318; a horizontal connecting rod 329, the lower end of which is slidably connected to the inner wall of the lower end of the fixed box 318 along the left-right direction via a first slider 319; a horizontal telescopic drive component 320, the fixed end of which is fixedly connected to the inner wall of the fixed box 318, and the telescopic end of which is fixedly connected to the first slider 319 or the horizontal connecting rod 329; and an auxiliary block 321, fixedly connected to the upper end of the horizontal connecting rod 329, with an auxiliary inclined surface 322 provided on the side of the auxiliary blocks 321 that is close to each other, the height of the side of the auxiliary inclined surface 322 that is close to each other being lower than the height of the auxiliary inclined surface 322. The height of the opposite side of the inclined plane 322; the fixing block 323, fixedly connected to the inner wall of the front or rear side of the fixing box 318; the lifting rod 324, which slides through the fixing block 323, and the upper end of the lifting rod 324 is fixedly connected to the mounting plate 326, and the upper end of the mounting plate 326 is fixedly connected to the detector 1; the mounting plate 325 is installed at the end of the horizontal connecting rod 329 that is close to each other, and the mounting plate 325 is used to install the detector 2. The upper end of the fixing box 318 is provided with the inlet and outlet of the detector 1, and the side wall of the fixing box 318 is provided with the inlet and outlet of the detector 2 (a sealable door that can be opened and closed can be provided); the auxiliary rod 327, which is fixedly connected to the lower end of the lifting rod 324, and the auxiliary ball 328 is provided on one side of the auxiliary rod 327, and the auxiliary ball 328 is slidably connected to the auxiliary inclined plane 322.

[0095] The working principle and beneficial effects of the above technical solution are as follows: In the initial state, both detector 1 and detector 2 are housed in the fixed box 318, which can achieve protection; when the platform 32 moves downward to the limit position and is limited, the lifting device 2 can be controlled to work, so that the tire 7 contacts the upper end of the platform 32, and then the horizontal telescopic drive component 320 is controlled to extend, driving the horizontal connecting rod 329 to move, so that detector 2 on the mounting plate 325 extends out of the fixed box 318, and the auxiliary blocks 321 on the horizontal connecting rod 329 move closer to each other, and through the auxiliary inclined surface 322 and the auxiliary With the assistance of ball 328, the lifting rod 324 moves upward, causing detector 1 on mounting plate 326 to extend out of the fixed box 318. Detector 1 and detector 2 can be configured as different devices for detecting tire 7. For example, detector 1 can be a camera, and detector 2 can be a distance sensor or a force sensor including a sensor mounting plate and a force sensor located on the side of the sensor mounting plate near tire 7 (e.g., moving horizontal connecting rod 329 until the force sensor contacts the surface of tire 7). This is used to determine the offset state of tire 7 by comparing the detection value of detector 2 with a standard value. The above technical solution can achieve simultaneous extension of detector 1 and detector 2 in different directions out of the fixed box 318 for detection or storage within the fixed box 318 using a single driving device, making control convenient.

[0096] Example 5, based on any one of Examples 1-4, both the first support leg 5 and the second support leg 6 include: a lower fixed support leg, the tire rotation shaft 8 being rotatably connected to the lower fixed support leg; an upper fixed support leg, fixedly connected to the lower end of the connecting bracket 1, the upper fixed support leg and the lower fixed support leg being connected by an elastic connector, the lower end of the connecting bracket 1 being further provided with several loading devices, the loading devices being used to apply loading force to the lower fixed support leg; the surface of the wear detection platform 3 is provided with a concrete test area or an asphalt road test area;

[0097] The vehicle tire inspection device also includes:

[0098] A speed sensor is used to detect the rotational speed of the tire rotating shaft 8;

[0099] Force detection device, used to detect the loading force of the loading device on the lower fixed leg;

[0100] A distance detection device is used to detect the vertical distance between the center of the tire rotation shaft 8 and the concrete test area or the asphalt road test area.

[0101] A camera device is used to acquire an image of the actual surface of the tire 7 after the drive unit has been operating for a preset time N.

[0102] An image processing device is electrically connected to the camera device. The image processing device includes: a segmentation module, used to divide the actual surface image of the tire 7 after the drive device has been working for a preset time N into M actual sub-images; and a storage module, which stores the M standard sub-images divided from the standard surface image of the tire 7 after the drive device has been working for a preset time N.

[0103] A controller, alarm one, and alarm two are included. The controller is electrically connected to a pressure detection device, a distance detection device, a camera device, an image processing device, alarm one, and alarm two, respectively. The controller controls the operation of alarm one and alarm two based on the pressure detection device, distance detection device, camera device, and image processing device, and includes:

[0104] The first evaluation coefficient P is calculated based on the distance detection device. When the first evaluation coefficient is less than the first preset value, the controller controls the alarm to work.

[0105]

[0106] H is the distance detection value detected by the distance detection device during the operation of the drive device, H0 is the reference value of the vertical distance between the center of the tire rotation axis and the concrete test area or asphalt road test area corresponding to G, and G is the force between a single tire and the contact surface of the concrete test area or asphalt road test area.

[0107] When alarm one does not alarm, the wear assessment coefficient Q is calculated based on the speed sensor, camera device, image processing device, and formula (2). When the wear assessment coefficient Q is not within the range of the preset benchmark assessment coefficient, the controller controls alarm two to alarm.

[0108]

[0109] V represents the baseline wear volume of the tire after the drive unit has been operating for a preset time N; A represents the wear coefficient between the tire and the concrete or asphalt road test area; B represents the tire radius; π is 3.14; n is the value detected by the speed sensor; and D represents the Brinell hardness value of the tire. i ∑F1 represents the similarity between the i-th actual sub-image and the standard sub-image; F2 represents the maximum loading force on the two adjacent second legs on the left and right sides of the tire; F1 represents the minimum loading force on the two adjacent second legs on the left and right sides of the tire; ∑F3 represents the maximum sum of loading forces on the left or right side of the tire; ∑F0 represents the minimum sum of loading forces on the left or right side of the tire; ω1 and ω2 are the first adjustment coefficient and the second adjustment coefficient, respectively (their values ​​are greater than 0 and less than 1, depending on the corresponding...). and (Importance setting), e is the natural constant; ln is the natural logarithm.

[0110] The working principle and beneficial effects of the above technical solution are as follows: By loading the tire, the wear state of the tire under different loading force states can be simulated; and during the loading detection process, the rotational speed of the tire's rotating shaft, the loading force, and the vertical distance between the axis of the tire's rotating shaft and the concrete test area or asphalt road test area are acquired in real time. After the drive device has been working for a preset time N, the actual surface image of the tire 7 is acquired; the controller controls the operation of alarm device 1 and alarm device 2 based on the pressure detection device, distance detection device, camera device, and image processing device. Specifically:

[0111] The first evaluation coefficient P is calculated based on the distance detection device. The vertical distance between the center of the tire rotation axis and the concrete test area or asphalt road test area reflects the compression state of the tire. By comparing the actual compression state and the theoretical compression state, when the compression state is abnormal, the alarm will sound to remind the tester.

[0112] When the alarm does not sound, the wear assessment coefficient Q is calculated based on the speed sensor, camera device, image processing device, and formula (2). The comparison between the reference wear volume and the actual wear volume of the tire after the preset working time N is then performed. And based on the loading balance state of the left and right sides The reliability of wear detection is comprehensively evaluated by comparing actual wear images with standard wear images; when an abnormality is detected, alarm device two will sound an alarm to remind the inspector to adjust the detection status.

[0113] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A vehicle tire inspection device, characterized in that, include: A tire inspection bracket, which is fixedly connected to the ground; Two lifting devices are fixedly connected to opposite sides of the tire inspection bracket; The connecting bracket is connected at both ends to the lifting ends of the two lifting devices respectively; A tire drive device is mounted on a connecting bracket and is used to drive at least two tires connected to the connecting bracket. A tire detection module is mounted on the connecting bracket and above the tires. The wear detection platform is connected to the lower part of the tire inspection bracket and is located directly below the tire; The controller and the display are both mounted on the tire detection bracket, and the controller is electrically connected to the tire detection module and the display respectively. The lower part of the tire inspection bracket is equipped with a soap water testing tank; The wear detection platform is provided with auxiliary roller brackets on the front and rear sides, and auxiliary rollers are connected to the auxiliary roller brackets. The wear testing station is a multi-functional testing station, which includes: Mounting base, wherein a first chamber is provided in the middle of the mounting base; The platform body has a first connecting seat fixedly connected to its lower end, and a spiral water pipe is embedded in the upper end of the first connecting seat. Two sets of limiting and connecting structures are set inside the mounting base, and the two sets of limiting and connecting structures are symmetrically arranged on the left and right sides of the first chamber. The limiting and connecting structures are used to connect the first water inlet of the left or right side of the first connecting base. Two sets of drive connection structures are set inside the mounting base, and the two sets of drive connection structures correspond one-to-one with the two sets of limit and communication structures. The vertical telescopic drive component has its fixed end fixedly connected to the inner wall of the lower end of the first chamber; Horizontal connecting rod one is fixedly connected to the telescopic end of the vertical telescopic drive component. The vertical telescopic drive component drives the two sets of drive connection structures to work through the horizontal connecting rod one. The limiting and connecting structure includes: a second chamber, comprising a horizontal chamber and a vertical chamber, the vertical chamber being connected to the side of the horizontal chamber near the first connecting seat; a sealing plate, slidably connected to the interior of the vertical chamber along the vertical direction, with a spring fixedly connected between the lower end of the sealing plate and the lower inner wall of the vertical chamber; a supporting limiting block, fixedly connected to the side of the sealing plate near the first connecting seat, and the supporting limiting block penetrating the side of the vertical chamber near the first connecting seat, the lower end of the first connecting seat being used to support the upper end of the supporting limiting block; a water tank, slidably connected to the interior of the horizontal chamber, with a water outlet rod connected to the right end of the water tank, the end of the water outlet rod away from the water tank being used to connect to the first water inlet; a second horizontal connecting rod, fixedly connected to the end of the water tank away from the water outlet rod, with an arc-shaped protrusion at the end of the second horizontal connecting rod away from the water tank; and a second spring, with both ends fixedly connected to the water tank and the inner wall of the horizontal chamber, respectively.

2. The automobile tire testing device according to claim 1, characterized in that: The lower end of the connecting bracket is also connected to a tire mounting device, which includes: a first leg and five second legs; The first leg is connected to the left side of the connecting bracket; The second leg is located to the right of the first leg. The second leg is vertically connected to the lower end of the connecting bracket. Five second legs are arranged alternately from left to right. Each second leg is rotatably connected to the tire rotation shaft. There is a tire between the first and second second legs, and another tire between the third and fourth second legs; The tire drive device is located on the intermediate connecting plate between the third and fourth second legs. The tire drive device is a servo drive motor, which is used to drive the tire rotation shaft to rotate.

3. The automobile tire testing device according to claim 1, characterized in that: The tire detection module includes: a mounting block, on which an infrared ranging sensor and a first camera device are mounted, and the infrared ranging sensor and the first camera device are electrically connected to the controller; the mounting block is fixedly connected to the connecting bracket.

4. The automobile tire testing device according to claim 1 is characterized in that, The lifting device includes: a drive motor, a vertical lead screw, a vertical guide rail, and a lead screw slider; The vertical guide rail is fixedly connected to one side of the tire detection bracket; the drive motor is fixedly connected to the upper end of the vertical guide rail; the shaft end of the drive motor is connected to the vertical lead screw, and the vertical lead screw is rotatably connected to the tire detection bracket; the vertical lead screw is provided with a lead screw slider, and the lead screw slider is slidably connected to the vertical guide rail.

5. The automobile tire testing device according to claim 2, characterized in that: Also includes: The braking device is provided on one side of the tire drive device and is mounted on the intermediate connecting plate; the braking device is a disc brake.

6. The automobile tire testing device according to claim 1, characterized in that: The drive connection structure includes: a third chamber, disposed within the mounting base and located on the side of the second chamber away from the first chamber, with the arc-shaped protrusion located within the third chamber; a drive mating block, slidably connected within the third chamber in the vertical direction, with a drive ramp on the side of the drive mating block that is close to each other, the height of the side of the two drive ramps that are close to each other being higher than the height of the side of the two drive ramps that are far apart from each other; and a drive mating rod, slidably passing through the lower end of the third chamber in the vertical direction, with the upper end of the drive mating rod fixedly connected to the lower end of the drive mating block, and the lower end of the drive mating rod fixedly connected to the upper end of a horizontal connecting rod.

7. The automobile tire testing device according to claim 1, characterized in that: The multi-functional testing station also includes: Two sets of auxiliary structures are symmetrically arranged on the left and right sides of the upper end of the mounting base. Each auxiliary structure includes: a fixed box, fixedly connected to the left or right side of the upper end of the mounting base, with the platform located between the two fixed boxes; a third horizontal connecting rod, the lower end of which is slidably connected to the inner wall of the lower end of the fixed box via a first slider along the left-right direction; a horizontal telescopic drive component, the fixed end of which is fixedly connected to the inner wall of the fixed box, and the telescopic end of which is fixedly connected to the first slider or the third horizontal connecting rod; and auxiliary blocks, fixedly connected to the upper end of the third horizontal connecting rod, with auxiliary inclined surfaces provided on the sides of the auxiliary blocks that are close to each other. The height of one side is lower than the height of the side of the auxiliary inclined plane that is far away from each other; a fixed block is fixedly connected to the inner wall of the front or rear side of the fixed box; a lifting rod slides through the fixed block, and a mounting plate is fixedly connected to the upper end of the lifting rod, and a detector is fixedly connected to the upper end of the mounting plate; a second mounting plate is installed at one end of the horizontal connecting rod that is close to each other, and the second mounting plate is used to install the second detector; the upper end of the fixed box is provided with the inlet and outlet of the first detector, and the side wall of the fixed box is provided with the inlet and outlet of the second detector; an auxiliary rod is fixedly connected to the lower end of the lifting rod, and an auxiliary ball is provided on one side of the auxiliary rod, and the auxiliary ball is slidably connected to the auxiliary inclined plane.

8. The automobile tire testing device according to claim 2, characterized in that: Both the first and second outriggers include: a lower fixed outrigger, with the tire rotation shaft rotatably connected to the lower fixed outrigger; and an upper fixed outrigger, fixedly connected to the lower end of the connecting bracket, with the upper fixed outrigger and the lower fixed outrigger connected by an elastic connector. The lower end of the connecting bracket is also provided with several loading devices, which are used to apply loading force to the lower fixed outrigger. The surface of the wear testing platform is provided with a concrete test area or an asphalt road test area. The vehicle tire inspection device also includes: A speed sensor is used to detect the rotational speed of the tire's axle. Force detection device, used to detect the loading force of the loading device on the lower fixed leg; A distance detection device is used to detect the vertical distance between the center of the tire rotation axis and the concrete test area or asphalt road test area; A camera device is used to acquire an image of the actual surface of the tire after the drive unit has been operating for a preset time N. An image processing device is electrically connected to the camera device. The image processing device includes: a segmentation module, used to divide the actual surface image of the tire after the drive device has been working for a preset time N into M actual sub-images; and a storage module, which stores the M standard sub-images divided from the standard surface image of the tire after the drive device has been working for a preset time N. A controller, alarm one, and alarm two are included. The controller is electrically connected to a pressure detection device, a distance detection device, a camera device, an image processing device, alarm one, and alarm two, respectively. The controller controls the operation of alarm one and alarm two based on the pressure detection device, distance detection device, camera device, and image processing device, and includes: The first evaluation coefficient P is calculated based on the distance detection device. When the first evaluation coefficient is less than the first preset value, the controller controls the alarm to work. （1） H is the distance detection value detected by the distance detection device during the operation of the drive device. G is the reference value for the vertical distance between the center of the tire rotation axis and the concrete test area or asphalt road test area, and G is the force between a single tire and the contact surface of the concrete test area or asphalt road test area. When alarm one does not alarm, the wear assessment coefficient Q is calculated based on the speed sensor, camera device, image processing device, and formula (2). When the wear assessment coefficient Q is not within the range of the preset benchmark assessment coefficient, the controller controls alarm two to alarm. (2) V represents the baseline wear volume of the tire after the drive unit has been operating for a preset time N; A represents the wear coefficient between the tire and the concrete or asphalt road test area; and B represents the tire radius. The value is 3.14, where n is the value detected by the speed sensor and D is the Brinell hardness of the tire. Let be the similarity between the i-th actual sub-image and the standard sub-image; This represents the maximum load force on the two adjacent second legs on the left and right sides of the tire. This represents the minimum load force on the two adjacent second legs on the left and right sides of the tire. This is the maximum sum of the loading forces on the left or right side of the tire; It is the minimum sum of the loading forces on the left or right side of the tire; and These are the first and second adjustment coefficients, respectively; e is the natural constant; and ln is the natural logarithm.

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