A dynamic pressure distribution device for tires passing through potholes

Abstract

The present invention provides a dynamic pressure distribution device for a tire passing through a pit, which relates to the technical field of tire testing equipment, and includes an execution device body, a test platform, and a data processing system, wherein the data processing system is electrically connected to the test platform and the execution device body; the execution device body includes a guide rail and an additional device base, wherein the additional device base is slidably connected to the guide rail, the additional device is mounted on the additional device base, a main shaft is provided on the additional device, and a test tire is mounted on the main shaft; a pit is provided on the test platform, and a plurality of pressure detectors are installed on the pit. The present invention realizes the pressure distribution measurement of the contact surface between the tire and the pit when the tire enters and exits the pit through the design of the additional device and the test platform, and provides support for the tire dynamic pressure distribution test data related to the tire passing through the pit.

Description

Technical Field

[0001] The invention belongs to the technical field of tire detection equipment, and in particular relates to a dynamic pressure distribution device for a tire passing through a pothole. Background Art

[0002] The dynamic pressure distribution of tires can accurately reflect the actual situation of tires during driving. Its shape and pressure distribution not only affect the tire's wear, durability, grip, wet and safety performance, but also directly affect the vehicle's load-bearing, traction and handling performance.

[0003] Existing indoor tire dynamic pressure distribution test conditions are mostly tested on flat roads, while vehicles often pass through potholes during actual driving. Using only measurement data on flat roads as the result of tire dynamic pressure distribution test is often not convincing enough. Prior art publication number CN 215004297 U discloses a pothole impact device for automobile tire testing, including a concrete road surface; a test pit is arranged on the concrete road surface; two symmetrically distributed fixing plates are arranged on the inner wall of one side of the test pit; an adjustment box is arranged between the two fixing plates; a concrete base plate is arranged at the bottom of the test pit; a steel plate is arranged on the top of the concrete base plate; an angle iron is arranged on the inner wall of one side of the test pit away from the adjustment box, one end of the angle iron is connected and fixed to the concrete road surface, and the other end is connected and fixed to the inner wall of the test pit. In the prior art, due to the lack of relevant test devices for measuring the pressure distribution of the contact surface between the tire and the pothole, the tire dynamic pressure distribution test lacks support from relevant tire pothole test data. Summary of the invention

[0004] The present invention provides a dynamic pressure distribution device for a tire passing through a pothole, which is used to solve at least one of the technical problems mentioned above.

[0005] In order to solve the above technical problems, the present invention discloses a tire pit dynamic pressure distribution device, comprising an execution device body, a test platform and a data processing system, wherein the data processing system is electrically connected to the test platform and the execution device body;

[0006] The actuator body includes a guide rail and a mounting device base, the mounting device base is slidably connected to the guide rail, the mounting device is mounted on the mounting device base, the mounting device is provided with a main shaft, and the test tire is mounted on the main shaft;

[0007] A pit is provided on the test platform, and a plurality of pressure detectors are installed on the pit.

[0008] Preferably, two symmetrically arranged electric drive gears are rotatably connected in the mounting device base, fixed racks are provided on both sides of the guide rail, the electric drive gears and the fixed racks are meshed with each other, a guide groove is provided on the mounting device base, a guide bar is fixed on the guide rail, and the guide bar is installed in the guide groove;

[0009] Auxiliary wheels are installed at the bottom of the mounting device base.

[0010] Preferably, the mounting device comprises a back plate, a fixed box body is mounted on the back plate, a guide plate is slidably connected to the fixed box body, a loading motor is mounted on the top of the guide plate, a reduction box is mounted on the bottom of the guide plate, an output end of the loading motor is connected to an input end of the reduction box, a loading screw is mounted on the output end of the reduction box, a vertical guide plate is fixedly connected to the reduction box, a loading nut is threadedly connected to the loading screw, the loading nut is slidably connected to the vertical guide plate up and down, and a rotating shaft mounting box is fixedly connected to the loading nut;

[0011] The main shaft is driven by a rotating driving member, which is mounted on a rotating shaft mounting box, and the main shaft is a telescopic shaft.

[0012] Preferably, an electric removal screw is rotatably connected in the fixed box, a removal nut is threadedly connected on the electric removal screw, the removal nut is fixedly connected to the lower end of the guide plate, a buffer plunger is slidably connected in the fixed box, a buffer elastic part is sleeved on the buffer plunger, and the other end of the buffer plunger is fixedly connected to the reduction box.

[0013] Preferably, it also includes an auxiliary mechanism, which includes a guide square column, which is fixedly connected to the base of the mounting device, and the side of the guide square column is rotatably connected to an electric coarse adjustment screw, and both sides of the electric coarse adjustment screw are fixedly connected to the guide shaft of the auxiliary mechanism, and the electric coarse adjustment screw is threaded with a coarse adjustment driving nut, and the coarse adjustment driving nut is installed in a side mounting box, and the side mounting box is slidably connected to the guide shaft of the auxiliary mechanism, and a left support plate is bolted to the side mounting box, and an x-direction electromagnetic guide rail is installed on the left support plate, and the other end of the x-direction electromagnetic guide rail is installed on the right support plate, and the left support plate and the right support plate are both slidably connected to the guide square column up and down, the x-direction electromagnetic guide rail is slidably connected to the x-direction electromagnetic guide plate, the x-direction electromagnetic guide plate is bolted to the z-direction electromagnetic guide plate, and the z-direction electromagnetic guide rail is slidably connected to the z-direction electromagnetic guide plate, and an auxiliary clamping block is installed on the z-direction electromagnetic guide plate, and the auxiliary clamping block is used to clamp the cleaning spray mechanism.

[0014] Preferably, the test platform comprises a platform turning machine, a platform base and a test platform body, the test platform body is installed in the platform base, and the platform base is installed on the platform turning machine.

[0015] Preferably, the platform turning machine includes an L-shaped base, on which an electric turning shaft and a gear column are rotatably connected, on which the turning shaft is fixedly connected a turning gear, which is meshed with the gear column, on which a large arm is fixedly connected, on which a telescopic small arm is fixedly connected, on which a turning platform is rotatably connected, and which is used to be bolted to the platform base.

[0016] Preferably, a mounting groove is provided at the bottom of the platform base, which is used to cooperate with the platform turning machine. Two symmetrically arranged threaded rockers are threadedly connected on both sides of the platform base. A slope adjustment wedge block is rotatably connected to the threaded rocker. The bottom of the slope adjustment wedge block is slidably connected to the bottom of the inner wall of the platform base. An adjustment slope is provided at the bottom of the test platform body, which is used to cooperate with the slope adjustment wedge block. The bottom of the inner wall of the platform base is connected to the bottom of the test platform body through a number of extruded elastic parts.

[0017] Preferably, the main body of the test platform includes a platform body, a dual-axis drive motor is installed in the platform body, and both output ends of the dual-axis drive motor are installed with a drive shaft, a bevel gear 1 is fixedly connected to the drive shaft, a bevel gear 2 and a lifting gear are rotatably connected in the platform body, the bevel gear 2 and the lifting gear are coaxial, the bevel gear 1 and the bevel gear 2 are meshed with each other, a lifting rack is slidably connected up and down in the platform body, the lifting rack and the lifting gear are meshed with each other, the lifting rack is connected to the platform, a pit is provided on the platform, the pit includes a flexible material layer, the pressure detector is arranged in the flexible material layer, and positioning plates are fixedly connected on both sides of the platform;

[0018] An electric jacking screw is rotatably connected in the table body, a plurality of jacking nuts are threadedly connected on the electric jacking screw, a wedge block 1 is fixedly connected to the jacking nut, a plurality of guide cylinders are arranged in the table body, a jacking column is slidably connected up and down in the guide cylinder, one end of the jacking column is fixedly connected to a roller body, and the other end of the jacking column is fixedly connected to a wedge block 2, the wedge block 2 cooperates with the wedge block 1, and a compression elastic member is sleeved on the jacking column.

[0019] Preferably, a scissor mechanism is provided in the platform body, a mounting platform is provided on the scissor mechanism, a special-shaped protrusion is provided on the mounting platform, a protruding groove is provided on the platform, the protruding groove is used to cooperate with the special-shaped protrusion, and a plurality of pressure detectors are provided in the special-shaped protrusion;

[0020] A miniature meshing winding wheel is rotatably connected inside the platform body, the edge of the miniature meshing winding wheel is meshed with the lifting rack, a pulling winding is wound around the middle of the miniature meshing winding wheel, and a positioning plug is connected to the other end of the pulling winding. A reset elastic part is fixedly connected between the positioning plug and the inner wall of the platform body, and a plug groove is provided on the mounting platform, which is used to cooperate with the positioning plug.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention realizes the measurement of the pressure distribution on the contact surface between the tire and the pit when the tire enters and exits the pit through the design of the mounting device and the test platform, and provides support for the tire dynamic pressure distribution test related to the tire passing the pit test data;

[0023] 2. The auxiliary clamping block of the present invention clamps the cleaning spraying mechanism, and the distance between the cleaning spraying mechanism and the test tire is adjusted by the auxiliary mechanism. The cleaning spraying mechanism can not only clean the surface of the test tire, but also spray some medium onto the test platform, thereby simulating road sections under different weather conditions, and increasing the functional diversity of the dynamic pressure distribution device for tires passing through potholes;

[0024] 3. The platform turning machine of the present invention is used for adjusting the angle of the test platform body in the front and rear directions, and the platform base is used for adjusting the angle of the test platform body in the left and right directions. The platform turning machine and the platform base cooperate with each other to realize the flexible adjustment of the inclination angle of the plane of the test platform body to meet various road simulations;

[0025] 4. The present invention can flexibly adjust the platform height and simulate the protrusions or depressions in the pit, thereby increasing the richness of the inner wall of the pit, making the simulation of the pit more realistic and improving the reliability of the test data. At the same time, the dynamic pressure change data of the tire when passing through the special-shaped protrusion can be monitored through a number of pressure detectors on the special-shaped protrusion. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 Side view of the present invention Figure 1 ;

[0029] Figure 3 This is a cross-sectional view of the base of the mounting device of the present invention;

[0030] Figure 4 The present invention is a side view Figure 2 ;

[0031] Figure 5 It is a schematic diagram of the auxiliary mechanism structure of the present invention;

[0032] Figure 6 It is a front view of the present invention;

[0033] Figure 7 This is a schematic diagram of the structure of the platform turning machine of the present invention;

[0034] Figure 8 This is a schematic diagram of the platform base structure of the present invention;

[0035] Fig. 9 This is a cross-sectional view of the main body of the test platform of the present invention;

[0036] Fig.10For the present invention Fig. 9 A local enlarged view of point A;

[0037] Fig.11 For the present invention Fig. 9 A partial enlarged view of point B.

[0038] In the figure: 1. Guide rail; 2. Mounting device base; 200. Electric drive gear; 201. Fixed rack; 202. Guide bar; 203. Guide groove; 204. Auxiliary wheel; 3. Auxiliary mechanism; 300. Guide square column; 301. Electric coarse adjustment screw; 302. Auxiliary mechanism guide shaft; 303. Side mounting box; 304. Left support plate; 305. X-direction electromagnetic guide rail; 306. X-direction electromagnetic guide plate; 307. Right support plate; 308. Z-direction electromagnetic guide rail; 309. Z-direction electromagnetic guide plate; 3090. Auxiliary clamping block; 4. Test platform; 400. pit; 401, platform turning machine; 4010, L-shaped base; 4011, electric turning shaft; 4012, turning gear; 4013, gear column; 4014, big arm; 4015, telescopic small arm; 4016, turning platform; 402, platform base; 4020, mounting groove; 4021, threaded rocker; 4022, slope adjustment wedge block; 4023, adjustment slope; 4024, extruded elastic member; 403, test platform body; 4030, platform body; 4031, dual-axis drive motor; 4032, drive shaft; 4033, bevel gear one ; 4034, bevel gear 2; 4035, lifting gear; 4036, lifting rack; 4037, platform; 4038, positioning plate; 4039, electric jacking screw; 404, jacking nut; 4040, wedge block 1; 4041, guide cylinder; 4042, jacking column; 4043, roller body; 4044, wedge block 2; 4045, compression elastic member; 4046, flexible material layer; 405, scissor mechanism; 406, installation platform; 407, special-shaped protrusion; 408, extension groove; 409, micro meshing winding wheel; 4090, pull Dynamic winding; 4091, positioning plug; 4092, resetting elastic member; 4093, plug slot; 5, test tire; 6, mounting device; 600, back plate; 601, fixed box; 6010, electric removal screw; 6011, removal nut; 6012, buffer plunger; 6013, buffer elastic member; 602, guide plate; 603, reduction box; 604, loading screw; 605, vertical guide plate; 606, shaft mounting box; 607, loading motor; 608, loading nut; 7, spindle; 8, data processing system; 9, cleaning spray mechanism. DETAILED DESCRIPTION

[0039] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0040] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions and technical features between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0041] The present invention provides the following embodiments

[0042] Example 1

[0043] The embodiment of the present invention provides a dynamic pressure distribution device for a tire passing through a pothole, such as Figure 1-11 As shown, it includes an execution device body, a test platform 4 and a data processing system 8, and the data processing system 8 is electrically connected to the test platform 4 and the execution device body;

[0044] The actuator body includes a guide rail 1 and a mounting device base 2, the mounting device base 2 is slidably connected to the guide rail 1, the mounting device 6 is mounted on the mounting device base 2, the mounting device 6 is provided with a main shaft 7, and the test tire 5 is mounted on the main shaft 7;

[0045] A pit 400 is provided on the test platform 4 , and a plurality of pressure detectors are installed on the pit 400 .

[0046] The working principle and beneficial effects of the above technical solution are as follows: before the test, a tire with good appearance quality is selected as the test tire 5. After the test tire 5 is assembled on the rim, it is inflated to the test required air pressure. The parking time of the test tire 5 must meet the test requirements. During the test, the test tire 5 is installed on the main shaft 7, and the test tire 5 is adjusted to a suitable height by the mounting device 6, so as to ensure that the test tire 5 is within the preset loading range when passing through the pit 400. Then, the test tire 5 is moved by sliding along the guide rail 1 through the mounting device base 2 until the test tire 5 moves to the test platform 4 and starts to roll. When passing through the pit 400, the pressure detector thereon will collect the dynamic pressure change data of the test tire 5 when passing through the pit, and finally transmit it to the data processing system 8 (the ground contact shape, ground contact effective area, ground contact total area, ground contact length, ground contact width, shoulder ground contact length, ground contact pressure and other test parameters under the dynamic change of the tire when passing through the pit can be obtained through the pressure detector device, especially the pressure distribution of the contact surface between the tire and the pit when the tire enters and exits the pit);

[0047] The present invention realizes the pressure distribution measurement of the contact surface between the tire and the pit when the tire enters and exits the pit through the design of the mounting device 6 and the test platform 4, and provides support for the tire dynamic pressure distribution test related to the tire passing the pit test data.

[0048] Example 2

[0049] On the basis of Example 1, two symmetrically arranged electric drive gears 200 are rotatably connected in the mounting device base 2, fixed racks 201 are provided on both sides of the guide rail 1, the electric drive gear 200 and the fixed rack 201 are meshed with each other, a guide groove 203 is provided on the mounting device base 2, a guide bar 202 is fixed on the guide rail 1, and the guide bar 202 is installed in the guide groove 203;

[0050] Auxiliary wheels 204 are installed at the bottom of the mounting device base 2.

[0051] The working principle and beneficial effects of the above technical solution are as follows: when the mounting device base 2 moves, the electric drive gear 200 rotates and drives the mounting device base 2 to slide along the guide rail 1 under the action of the fixed rack 201. The design of the guide bar 202 can ensure the stability of the mounting device base 2 during the sliding process, and the design of the auxiliary wheel 204 can effectively reduce the friction resistance of the mounting device base 2 during the sliding process.

[0052] Example 3

[0053] On the basis of Example 1, the mounting device 6 includes a back plate 600, a fixed box 601 is installed on the back plate 600, a guide plate 602 is slidably connected to the fixed box 601, a loading motor 607 is installed on the top of the guide plate 602, a reduction box 603 is installed on the bottom of the guide plate 602, the output end of the loading motor 607 is connected to the input end of the reduction box 603, a loading screw 604 is installed on the output end of the reduction box 603, a vertical guide plate 605 is fixedly connected to the reduction box 603, a loading nut 608 is threadedly connected to the loading screw 604, the loading nut 608 is slidably connected to the vertical guide plate 605 up and down, and a rotating shaft installation box 606 is fixedly connected to the loading nut 608;

[0054] The main shaft 7 is driven by a rotating driving member, and the rotating driving member is installed on the rotating shaft installation box 606. The main shaft 7 is a telescopic shaft.

[0055] The working principle and beneficial effects of the above technical solution are as follows: during loading, the loading motor 607 drives the reduction box 603 to operate, the reduction box 603 drives the loading screw 604 to rotate, and the loading screw 604 drives the loading nut 608 to slide up and down along the vertical guide plate 605, thereby driving the shaft mounting box 606 and the main shaft 7 to move up and down, thereby achieving flexible adjustment of the loading force of the test tire 5. When adjusting the position of the test tire 5 in the width direction of the test platform 4, the guide plate 602 can slide along the fixed box 601.

[0056] Example 4

[0057] On the basis of Example 3, an electric removal screw 6010 is rotatably connected in the fixed box 601, and a removal nut 6011 is threadedly connected to the electric removal screw 6010. The removal nut 6011 is fixedly connected to the lower end of the guide plate 602. A buffer plunger 6012 is slidably connected in the fixed box 601, and a buffer elastic member 6013 is sleeved on the buffer plunger 6012. The other end of the buffer plunger 6012 is fixedly connected to the reduction box 603.

[0058] The working principle and beneficial effects of the above technical solution are as follows: when the guide plate 602 slides along the fixed box body 601, the electric removal screw 6010 rotates to drive the removal nut 6011 to move under the action of the thread, thereby driving the guide plate 602 to slide along the fixed box body 601. During this process, the buffer plunger 6012 slides in the fixed box body 601 to ensure the stability of the movement of the guide plate 602.

[0059] Example 5

[0060] On the basis of Example 1, an auxiliary mechanism 3 is also included. The auxiliary mechanism 3 includes a guide square column 300. The guide square column 300 is fixedly connected to the mounting device base 2. The side of the guide square column 300 is rotatably connected to an electric coarse adjustment screw 301. The two sides of the electric coarse adjustment screw 301 are fixedly connected to auxiliary mechanism guide shafts 302. The electric coarse adjustment screw 301 is threadedly connected to a coarse adjustment driving nut. The coarse adjustment driving nut is installed in a side installation box 303. The side installation box 303 is slidably connected to the auxiliary mechanism guide shaft 302 up and down. The side installation box 303 is bolted to a left support plate 304. An x-direction electromagnetic guide rail 305 is installed on the left support plate 304, and the other end of the x-direction electromagnetic guide rail 305 is installed on the right support plate 307. The left support plate 304 and the right support plate 307 are both slidably connected to the guide square column 300 up and down. The x-direction electromagnetic guide rail 305 is slidably connected to the x-direction electromagnetic guide plate 306, and the x-direction electromagnetic guide plate 306 is bolted to the z-direction electromagnetic guide rail 308, and the z-direction electromagnetic guide plate 309 is slidably connected to the z-direction electromagnetic guide rail 308. An auxiliary clamping block 309 is installed on the z-direction electromagnetic guide plate 309, and the auxiliary clamping block 3090 is used to clamp the cleaning spray mechanism 9.

[0061] The working principle and beneficial effects of the above technical solution are as follows: during operation, the auxiliary clamping block 3090 clamps the cleaning spraying mechanism 9, and then the distance between the cleaning spraying mechanism 9 and the test tire 5 is adjusted by the auxiliary mechanism 3. The cleaning spraying mechanism 9 can not only clean the surface of the test tire 5, but also spray some medium onto the test platform 4, thereby simulating road sections under different weather conditions;

[0062] Specifically, the electric coarse adjustment screw 301 rotates to drive the coarse adjustment nut to move up and down, thereby adjusting the position of the cleaning spray mechanism 9 in the z direction. During this process, the left support plate 304 and the right support plate 307 both slide up and down along the guide square column 300. The x-direction position of the cleaning spray mechanism 9 can be adjusted by sliding the x-direction electromagnetic guide plate 306 along the x-direction electromagnetic guide rail 305. The z-direction fine-tuning of the cleaning spray mechanism 9 can be achieved by sliding the z-direction electromagnetic guide plate 309 along the z-direction electromagnetic guide rail 308.

[0063] Example 6

[0064] On the basis of Example 1, the test platform 4 includes a platform turning machine 401, a platform base 402 and a test platform body 403, the test platform body 403 is installed in the platform base 402, and the platform base 402 is installed on the platform turning machine 401;

[0065] The platform turning machine 401 includes an L-shaped base 4010, on which an electric turning shaft 4011 and a gear column 4013 are rotatably connected, and the electric turning shaft 4011 is fixedly connected to a turning gear 4012, which is meshed with the gear column 4013, and the gear column 4013 is fixedly connected to a large arm 4014, on which a telescopic small arm 4015 is fixedly connected, and on which a turning platform 4016 is rotatably connected, and the turning platform 4016 is used to be bolted to the platform base 402.

[0066] The working principle and beneficial effects of the above technical solution are as follows: when working, the platform turning machine 401 is used for adjusting the angle of the test platform body 403 in the front and rear directions, and the platform base 402 is used for adjusting the angle of the test platform body 403 in the left and right directions. The platform turning machine 401 and the platform base 402 cooperate with each other to realize flexible adjustment of the plane inclination angle of the test platform body 403 to meet various road simulations. When the platform turning machine 401 is working, the electric turning shaft 4011 drives the turning gear 4012 to rotate, the turning gear 4012 drives the gear column 4013 to rotate, the gear column 4013 drives the big arm 4014 to rotate, the big arm 4014 drives the telescopic arm 4015 to rotate, the telescopic arm 4015 drives the turning platform 4016 to turn, and the turning platform 4016 drives the platform base 402 and the test platform body 403 to realize turning in the front and rear directions, and the spatial position of the test platform body 403 can be adjusted by telescoping the telescopic arm 4015.

[0067] Example 7

[0068] On the basis of Example 6, a mounting groove 4020 is provided at the bottom of the platform base 402, and the mounting groove 4020 is used to cooperate with the platform turning machine 401. Two symmetrically arranged threaded rockers 4021 are threadedly connected on both sides of the platform base 402. A slope adjustment wedge block 4022 is rotatably connected to the threaded rocker 4021. The bottom of the slope adjustment wedge block 4022 is slidably connected to the bottom of the inner wall of the platform base 402. An adjustment slope 4023 is provided at the bottom of the test platform body 403. The adjustment slope 4023 is used to cooperate with the slope adjustment wedge block 4022. The bottom of the inner wall of the platform base 402 and the bottom of the test platform body 403 are connected by a plurality of extrusion elastic members 4024.

[0069] The working principle and beneficial effects of the above technical solution are as follows: by shaking the threaded rocker 4021, the slope adjustment wedge block 4022 can be driven to slide left and right, and the left and right sliding of the slope adjustment wedge block 4022 cooperates with the adjustment slope 4023 to drive the test platform body 403 to tilt left and right.

[0070] Example 8

[0071] On the basis of Example 6, the test platform body 403 includes a platform body 4030, a dual-axis drive motor 4031 is installed in the platform body 4030, and a drive shaft 4032 is installed at both output ends of the dual-axis drive motor 4031. A bevel gear 1 4033 is fixedly connected to the drive shaft 4032. A bevel gear 2 4034 and a lifting gear 4035 are rotatably connected in the platform body 4030. The bevel gear 2 4034 and the lifting gear 4035 are coaxial, and the bevel gear 1 4033 is fixedly connected to the driving shaft 4032. 033 is meshed with bevel gear 2 4034, a lifting rack 4036 is slidably connected to the platform 4030, the lifting rack 4036 is meshed with the lifting gear 4035, a platform 4037 is connected to the lifting rack 4036, a pit 400 is provided on the platform 4037, the pit 400 includes a flexible material layer 4046, a pressure detector is arranged in the flexible material layer 4046, and positioning plates 4038 are fixedly connected to both sides of the platform 4037;

[0072] An electric lifting screw 4039 is rotatably connected in the platform body 4030, and a plurality of lifting nuts 404 are threadedly connected on the electric lifting screw 4039. A wedge block 1 4040 is fixedly connected to the lifting nut 404. A plurality of guide cylinders 4041 are provided in the platform body 4030. A lifting column 4042 is slidably connected in the guide cylinder 4041 up and down. A roller body 4043 is fixedly connected to one end of the lifting column 4042, and a wedge block 2 4044 is fixedly connected to the other end of the lifting column 4042. The wedge block 2 4044 cooperates with the wedge block 1 4040, and a compression elastic member 4045 is sleeved on the lifting column 4042.

[0073] The working principle and beneficial effects of the above technical solution are as follows: when working, the dual-axis driving motor 4031 starts to drive the driving shaft 4032 to rotate, the driving shaft 4032 drives the bevel gear 1 4033 to rotate, the bevel gear 1 4033 drives the bevel gear 2 4034 to rotate, the bevel gear 2 4034 drives the lifting gear 4035 to rotate, the lifting gear 4035 drives the lifting rack 4036 to move upward, and the lifting rack 4036 drives the platform 4037 to move upward, thereby realizing flexible adjustment of the height of the platform 4037. After the height of the platform 4037 is adjusted in place, the positioning plate 4038 is positioned on the test platform body 403 by using a pin shaft;

[0074] Afterwards, in order to simulate the protrusion or depression in the pit 400, the electric lifting screw 4039 rotates to drive the lifting nut 404 to move under the action of the thread, so that the wedge block 1 4040 squeezes the wedge block 2 4044, thereby driving the lifting column 4042 to move upward. The upward movement of the lifting column 4042 drives the roller body 4043 to move upward, thereby increasing the richness of the inner wall of the pit 400, making the simulation of the pit 400 more realistic and improving the reliability of the test data.

[0075] Example 9

[0076] On the basis of Example 6, a scissor mechanism 405 is provided in the platform 4030, a mounting platform 406 is provided on the scissor mechanism 405, a special-shaped protrusion 407 is provided on the mounting platform 406, a protruding groove 408 is provided on the platform 4037, the protruding groove 408 is used to cooperate with the special-shaped protrusion 407, and a plurality of pressure detectors are provided in the special-shaped protrusion 407;

[0077] A miniature meshing winding wheel 409 is rotatably connected inside the platform body 4030, and the edge of the miniature meshing winding wheel 409 is meshed with the lifting rack 4036. A pulling winding 4090 is wound around the middle of the miniature meshing winding wheel 409, and a positioning plug 4091 is connected to the other end of the pulling winding 4090. A reset elastic member 4092 is fixedly connected between the positioning plug 4091 and the inner wall of the platform body 4030, and a plug groove 4093 is provided on the mounting platform 406, and the plug groove 4093 is used to cooperate with the positioning plug 4091.

[0078] The working principle and beneficial effects of the above technical solution are as follows: the scissor mechanism 405 drives the special-shaped protrusion 407 to move upward until it cooperates with the extension groove 408, and the special-shaped protrusion 407 can simulate the uneven protrusion of the road surface, and the pressure dynamic change data of the tire when passing through the special-shaped protrusion 407 can be monitored through a plurality of pressure detectors on the special-shaped protrusion 407;

[0079] During the upward movement of the lifting rack 4036, the micro meshing winding wheel 409 is driven to rotate, thereby loosening the pulling winding 4090, and the positioning block 4091 is pushed out by the reset elastic member 4092 to cooperate with the block groove 4093, thereby ensuring that the special-shaped protrusion 407 will not move downward under the action of the loading pressure.

[0080] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A dynamic pressure distribution device for a tire passing through a pothole, comprising a test platform (4), the test platform (4) being provided with a pothole (400), characterized in that: It comprises an execution device body and a data processing system (8), wherein the data processing system (8) is electrically connected to the test platform (4) and the execution device body; The actuator body comprises a guide rail (1) and a mounting device base (2), the mounting device base (2) is slidably connected to the guide rail (1), the mounting device (6) is mounted on the mounting device base (2), the mounting device (6) is provided with a main shaft (7), and the test tire (5) is mounted on the main shaft (7); A plurality of pressure detectors are installed on the pit (400), the pit (400) is opened on the platform (4037), the pit (400) includes a flexible material layer (4046), and the pressure detectors are arranged in the flexible material layer (4046); The test platform (4) comprises a platform turning machine (401), a platform base (402) and a test platform body (403), wherein the test platform body (403) is installed in the platform base (402), and the platform base (402) is installed on the platform turning machine (401); The platform turning machine (401) comprises an L-shaped base (4010), the L-shaped base (4010) is rotatably connected to an electric turning shaft (4011) and a gear column (4013), the electric turning shaft (4011) is fixedly connected to a turning gear (4012), the turning gear (4012) and the gear column (4013) are meshed with each other, the gear column (4013) is fixedly connected to a large arm (4014), the large arm (4014) is fixedly connected to a telescopic small arm (4015), the telescopic small arm (4015) is rotatably connected to a turning platform (4016), and the turning platform (4016) is used to be bolted to the platform base (402); The platform base (402) is provided with a mounting groove (4020) at the bottom, and the mounting groove (4020) is used to cooperate with the platform turning machine (401). Two symmetrically arranged threaded rockers (4021) are threadedly connected on both sides of the platform base (402). A slope adjustment wedge block (4022) is rotatably connected to the threaded rocker (4021). The bottom of the slope adjustment wedge block (4022) is slidably connected to the bottom of the inner wall of the platform base (402). The bottom of the test platform body (403) is provided with an adjustment slope (4023), and the adjustment slope (4023) is used to cooperate with the slope adjustment wedge block (4022). The bottom of the inner wall of the platform base (402) and the bottom of the test platform body (403) are connected via a plurality of extrusion elastic members (4024).

2. The dynamic pressure distribution device for tires passing through potholes according to claim 1, characterized in that: Two symmetrically arranged electric drive gears (200) are rotatably connected in the mounting device base (2), fixed racks (201) are provided on both sides of the guide rail (1), the electric drive gears (200) and the fixed racks (201) are meshed with each other, a guide groove (203) is provided on the mounting device base (2), a guide bar (202) is fixed on the guide rail (1), and the guide bar (202) is installed in the guide groove (203); Auxiliary wheels (204) are installed at the bottom of the mounting device base (2).

3. The dynamic pressure distribution device for tires passing through potholes according to claim 1, characterized in that: The mounting device (6) comprises a back plate (600), a fixed box (601) is mounted on the back plate (600), a guide plate (602) is slidably connected to the fixed box (601), a loading motor (607) is mounted on the top of the guide plate (602), a reduction box (603) is mounted on the bottom of the guide plate (602), an output end of the loading motor (607) is connected to an input end of the reduction box (603), a loading lead screw (604) is mounted on the output end of the reduction box (603), a vertical guide plate (605) is fixedly connected to the reduction box (603), a loading nut (608) is threadedly connected to the loading lead screw (604), the loading nut (608) is slidably connected to the vertical guide plate (605) up and down, and a rotating shaft mounting box (606) is fixedly connected to the loading nut (608); The main shaft (7) is driven by a rotating drive member, which is mounted on a rotating shaft mounting box (606). The main shaft (7) is a telescopic shaft.

4. The dynamic pressure distribution device for tires passing through potholes according to claim 3, characterized in that: An electric removal lead screw (6010) is rotatably connected in the fixed housing (601), a removal nut (6011) is threadedly connected on the electric removal lead screw (6010), the removal nut (6011) is fixedly connected to the lower end of the guide plate (602), a buffer plunger (6012) is slidably connected in the fixed housing (601), a buffer elastic member (6013) is sleeved on the buffer plunger (6012), and the other end of the buffer plunger (6012) is fixedly connected to the reduction box (603).

5. The dynamic pressure distribution device for tires passing through potholes according to claim 1, characterized in that: The auxiliary mechanism (3) also includes an auxiliary mechanism (3), the auxiliary mechanism (3) including a guide square column (300), the guide square column (300) is fixedly connected to the mounting device base (2), the guide square column (300) is rotatably connected to an electric coarse adjustment screw (301) on the side, the electric coarse adjustment screw (301) is fixedly connected to an auxiliary mechanism guide shaft (302) on both sides, the electric coarse adjustment screw (301) is threadedly connected to a coarse adjustment drive nut, the coarse adjustment drive nut is installed in a side mounting box (303), the side mounting box (303) is slidably connected to the auxiliary mechanism guide shaft (302), the side mounting box (303) is bolted to a left support plate (304), and the left support plate (304) is fixedly connected to the auxiliary mechanism guide shaft (302). ) is installed with an x-direction electromagnetic guide rail (305), the other end of the x-direction electromagnetic guide rail (305) is installed on the right support plate (307), the left support plate (304) and the right support plate (307) are both slidably connected to the guide square column (300) up and down, the x-direction electromagnetic guide rail (305) is slidably connected with an x-direction electromagnetic guide plate (306), the x-direction electromagnetic guide plate (306) is bolted with a z-direction electromagnetic guide rail (308), the z-direction electromagnetic guide rail (308) is slidably connected with a z-direction electromagnetic guide plate (309), and the z-direction electromagnetic guide plate (309) is installed with an auxiliary clamping block (3090), and the auxiliary clamping block (3090) is used to clamp the cleaning spray mechanism (9).

6. The dynamic pressure distribution device for tires passing through potholes according to claim 1, characterized in that: The test platform body (403) comprises a platform body (4030), a dual-axis driving motor (4031) is installed in the platform body (4030), both output ends of the dual-axis driving motor (4031) are installed with a driving shaft (4032), a bevel gear 1 (4033) is fixedly connected to the driving shaft (4032), a bevel gear 2 (4034) and a lifting gear (4035) are rotatably connected in the platform body (4030), the bevel gear 2 (4034) and the lifting gear (4035) are coaxial, the bevel gear 1 (4033) and the bevel gear 2 (4034) are meshed with each other, a lifting rack (4036) is slidably connected in the platform body (4030), the lifting rack (4036) and the lifting gear (4035) are meshed with each other, a platform (4037) is connected to the lifting rack (4036), and positioning plates (4038) are fixedly connected to both sides of the platform (4037); An electric jacking screw (4039) is rotatably connected in the platform body (4030), a plurality of jacking nuts (404) are threadedly connected on the electric jacking screw (4039), a wedge block 1 (4040) is fixedly connected on the jacking nut (404), a plurality of guide cylinders (4041) are arranged in the platform body (4030), a jacking column (4042) is slidably connected in the guide cylinder (4041) up and down, one end of the jacking column (4042) is fixedly connected to a roller body (4043), the other end of the jacking column (4042) is fixedly connected to a wedge block 2 (4044), the wedge block 2 (4044) cooperates with the wedge block 1 (4040), and a compression elastic member (4045) is sleeved on the jacking column (4042).

7. The dynamic pressure distribution device for tires passing through potholes according to claim 6, characterized in that: A scissor mechanism (405) is provided in the platform body (4030), a mounting platform (406) is provided on the scissor mechanism (405), a special-shaped protrusion (407) is provided on the mounting platform (406), a protruding groove (408) is provided on the platform (4037), the protruding groove (408) is used to cooperate with the special-shaped protrusion (407), and a plurality of pressure detectors are provided in the special-shaped protrusion (407); A miniature meshing winding wheel (409) is rotatably connected inside the platform (4030), the edge of the miniature meshing winding wheel (409) is meshed with the lifting rack (4036), a pulling winding (4090) is wound around the middle of the miniature meshing winding wheel (409), the other end of the pulling winding (4090) is connected to a positioning plug (4091), a reset elastic member (4092) is fixedly connected between the positioning plug (4091) and the inner wall of the platform (4030), and a plug groove (4093) is provided on the mounting platform (406), and the plug groove (4093) is used to cooperate with the positioning plug (4091).

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