CN216433552U

CN216433552U - Tire characteristic test device and tire characteristic test system

Info

Publication number: CN216433552U
Application number: CN202122410772.0U
Authority: CN
Inventors: 崔荣耀; 郇彦
Original assignee: Huangpu Institute of Materials
Current assignee: Huangpu Institute of Materials
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-05-03
Anticipated expiration: 2031-09-30

Abstract

The utility model relates to a tire characteristic test device and tire characteristic test system, tire characteristic test device includes: support, loading mechanism and flywheel subassembly. The loading mechanism comprises a loading frame, a loading assembly and a wheel fork, the wheel fork is used for mounting a test tire, and the loading assembly is used for loading acting force on the wheel; the road surface simulation module is used for simulating various road surface materials, and the test tire is arranged in the test cavity and matched with the road surface simulation module in a rolling manner. According to the tire characteristic test device, the pavement simulation module can simulate various pavement materials, so that pavement environments such as cement, asphalt, steel surfaces, wet and slippery, thin ice and the like are simulated according to environmental conditions required by experiments, the real working environment of the tire is reduced and tested, the accuracy and reliability of the test result of relevant parameters of tire characteristic experiments are improved, and the device has a propelling effect on the improvement and research and development of modern high-performance synthetic rubber tire technology.

Description

Tire characteristic test device and tire characteristic test system

Technical Field

The utility model relates to a tire characteristic test technical field especially relates to a tire characteristic test device and tire characteristic test system.

Background

The tire is the basis of interaction between an airplane, a carrier-based aircraft, an automobile and all other motor vehicles and runways, warplanes and the ground, the mechanical property of the tire is one of important research subjects of the design of the motion characteristics of various motor vehicles such as the airplane and the automobile, and the characteristic of the tire plays an important role in the evaluation of the bearing and the controllability (such as load, sideslip angle, torsion angle, speed, driving, braking torque and the like) of the vehicles and the airplanes. The tire characteristics play an important role in landing (ship) running safety of aircraft and carrier-based aircrafts; the tire abrasion and the service life thereof have key effects on the safety and the operational efficiency of the airplane, and the tire has different service lives in complex environments such as high acceleration, high temperature, low temperature, cable crossing and the like, so that the research on the performance test of the aviation tire in different service environments has very important military significance and practical value.

In the prior art, equipment for testing the mechanical stiffness characteristic of the tire is mainly used for simply researching the static characteristic of the tire, a tested material is cut into blocks in the traditional equipment to be subjected to a friction performance test, the difference between the test method and the actual use state of the tire is far, the result deviation is large, and the modern tire overall design technology is difficult to accurately guide. Meanwhile, a special tire friction, abrasion and mechanical property test bed for comprehensively simulating the road surface environment and the real use working condition is lacked.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a tire characteristic testing apparatus and a tire characteristic testing system, which can effectively simulate the real environment of the road surface and improve the reliability of the test result of the tire characteristic test.

A tire characteristic testing apparatus comprising: a support; the loading mechanism comprises a loading frame, a loading assembly and a wheel fork, the loading frame is movably connected with the bracket, the loading assembly is in driving connection with the wheel fork, the wheel fork is connected with the loading frame, the wheel fork is used for mounting a test tire, and the loading assembly is used for loading acting force on the wheel; the flywheel assembly, the flywheel assembly includes wheel body, driving piece and road surface simulation module, the wheel body with the driving piece drive is connected, the wheel body is equipped with test cavity and test inner edge, road surface simulation module set up in on the test inner edge, road surface simulation module is used for simulating multiple road surface material, and the test tire is used for setting up in the test cavity, and with road surface simulation module roll cooperation.

Above-mentioned tire characteristic test device in the course of the work, will test the tire and install on the wheel fork for test tire is located the test cavity of wheel body, and contradicts with road surface simulation module. When testing, the driving piece drives the wheel body to rotate, so that the test tire rolls on the pavement simulation module. Because the pavement simulation module can simulate various pavement materials, the pavement simulation module is replaced or set to be the corresponding pavement materials according to the environmental conditions required by the experiment, the pavement environments such as cement, asphalt, steel surfaces, wet and slippery, thin ice and the like are simulated, and then the real working environment of the tire is restored and tested.

In one embodiment, the flywheel assembly further comprises an environment simulation piece, wherein the environment simulation piece is in control connection with the road surface simulation module and is used for changing the temperature of the road surface simulation module.

In one embodiment, the wheel body is further provided with a barrier, and the barrier is arranged at the edge of the testing inner edge.

In one embodiment, the number of the barriers is two or more, and the two or more barriers are arranged at intervals along the circumferential direction of the testing inner edge.

In one embodiment, the flywheel assembly further comprises a mounting platform, and the mounting platform is arranged corresponding to the wheel fork.

In one embodiment, one end of the loading frame is rotatably connected to the bracket through a rotating shaft, the loading assembly includes a first loading member, the first loading member is disposed on the bracket, and the first loading member is drivingly connected to the loading frame, and the first loading member drives the loading frame to rotate around the rotating shaft.

In one embodiment, the loading assembly further comprises a second loading member, the second loading member is in driving connection with the fork, and the second loading member drives the fork to move along the height direction of the fork.

In one embodiment, the loading assembly further includes a third loading member, the third loading member is in driving connection with the fork, and the third loading member is configured to drive the fork to rotate around its axis.

In one embodiment, the bracket is provided with a guide beam which is in guiding engagement with the loading frame.

In one embodiment, the number of the loading frames is at least two, the two loading frames are respectively arranged on two opposite sides of the wheel fork, and the two loading frames are rotatably connected with the bracket.

In one embodiment, the loading mechanism further comprises a force measuring platform, and the force measuring platform is in induction fit with the wheel fork.

A tire characteristic testing system comprising the tire characteristic testing apparatus as set forth in any one of the above.

Above-mentioned tire characteristic test system in the course of the work, will test the tire and install on the fork for test tire is located the test cavity of wheel body, and contradicts with road surface simulation module. When testing, the driving piece drives the wheel body to rotate, so that the test tire rolls on the pavement simulation module. Because the pavement simulation module can simulate various pavement materials, the pavement simulation module is replaced or set to be the corresponding pavement materials according to the environmental conditions required by the experiment, the pavement environments such as cement, asphalt, steel surfaces, wet and slippery, thin ice and the like are simulated, and then the real working environment of the tire is restored and tested.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a first schematic structural view of a tire characteristic testing apparatus according to an embodiment;

fig. 2 is a schematic structural diagram of a tire characteristic testing apparatus according to an embodiment.

Description of reference numerals:

100. a tire characteristic test device; 110. a support; 111. a rotating shaft; 112. a guide beam; 120. a loading mechanism; 121. loading a frame; 122. loading the component; 1221. a first loading member; 1222. a second loading member; 1223. a third loading member; 123. a wheel fork; 124. a force measuring platform; 130. a flywheel assembly; 131. a wheel body; 1311. a test chamber; 1312. testing the inner edge; 1313. a barrier; 132. a drive member; 133. a pavement simulation module; 134. an environmental simulation piece; 135. mounting a platform; 136. a bearing seat; 137. an emergency brake disk; 200. the tire was tested.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be embodied in many other forms different from those described herein and similar modifications may be made by those skilled in the art without departing from the spirit and scope of the invention and, therefore, the invention is not to be limited to the specific embodiments disclosed below.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

In one embodiment, referring to fig. 1 and 2, a tire characteristic testing apparatus 100 includes: bracket 110, loading mechanism 120, and flywheel assembly 130. The loading mechanism 120 includes a loading frame 121, a loading assembly 122 and a fork 123, the loading frame 121 is movably connected with the bracket 110, and the loading assembly 122 is drivingly connected with the fork 123. Fork 123 is connected to loading frame 121, fork 123 is used to mount test tire 200, and loading assembly 122 is used to apply force to the wheel. The flywheel assembly 130 comprises a wheel body 131, a driving member 132 and a road surface simulation module 133, wherein the wheel body 131 is in driving connection with the driving member 132, and the wheel body 131 is provided with a testing cavity 1311 and a testing inner edge 1312. The road surface simulation module 133 is disposed on the testing inner edge 1312, and the road surface simulation module 133 is used for simulating various road surface materials. Test tire 200 is adapted to be disposed within test chamber 1311 and in rolling engagement with road surface simulation module 133.

In the tire characteristic testing apparatus 100, the test tire 200 is mounted on the fork 123 during operation such that the test tire 200 is located in the test chamber 1311 of the wheel body 131 and interferes with the road surface simulation module 133. During testing, the driving member 132 drives the wheel body 131 to rotate, so that the test tire 200 rolls on the road surface simulation module 133. Because the pavement simulation module 133 can simulate various pavement materials, the pavement simulation module 133 is replaced or set to be the corresponding pavement material according to the environmental conditions required by the experiment, the pavement environments such as cement, asphalt, steel surfaces, wet and slippery, thin ice and the like are simulated, and then the real working environment of the tire 200 is restored and tested, so that the tire characteristic test variable is enriched, the accuracy and the reliability of the test result of the tire characteristic experiment related parameters are improved, and the method has a propulsion effect on the improvement and research and development of the modern high-performance synthetic rubber tire technology.

It should be noted that, the wheel body 131 is connected to the driving element 132 in a driving manner, it is understood that the wheel body 131 is connected to the driving element 132, and the driving element 132 is used as a power source to drive the wheel body 131 to rotate.

The pavement simulation module 133 is configured to simulate various pavement materials including cement, asphalt, steel surface, wet and slippery, or other materials, and can satisfy different test scenarios to obtain corresponding test parameters, and the simulation mode may be a replacement mode or a conversion mode. The road surface simulation module 133 made of different materials is replaced and installed on the testing inner edge 1312, so that the material cost is reduced, and the experimental effect is ensured.

Alternatively, the drive member 132 may be an electric motor, a pneumatic motor, a hydraulic motor, or other drive means.

Specifically, referring to fig. 1, the driving member 132 is a motor. Thus, the driving method is simple, the operation is convenient, the maintenance is easy, and the reliability of the use function of the driving member 132 is improved. The present embodiment provides only one specific implementation of the driving member 132, but not limited thereto.

Further, referring to fig. 1 and 2, the flywheel assembly 130 further includes a bearing and a bearing seat 136, and the bearing seat 136 is connected to the output shaft of the driving member 132 through the bearing. Thus, the output efficiency of the driving member 132 is improved, and the wheel body 131 is supported, so that the service life and the overall quality of the flywheel assembly 130 are ensured.

In one embodiment, referring to FIG. 1, flywheel assembly 130 further includes an emergency brake disk 137. Emergency brake disc 137 is in control connection with drive element 132. In this way, emergency braking can be performed on the wheel body 131 through the emergency brake disc 137, which is beneficial to improving the test safety of the flywheel assembly 130 and improving the overall use quality of the tire characteristic testing apparatus 100.

In one embodiment, referring to fig. 1 and 2, flywheel assembly 130 further includes an environmental simulator 134. The environment simulation piece 134 is in control connection with the pavement simulation module 133, and the environment simulation piece 134 is used for changing the temperature of the pavement simulation module 133. So, through environmental simulation piece 134, heat or cool down road surface simulation module 133, can simulate road surface environment such as road surface wet and slippery, thin ice, high temperature, low temperature, and then satisfy different road surface environments and the real operating mode of tire, richen tire characteristic test device 100's test function promotes tire characteristic test device 100's whole quality.

Specifically, the temperature adjustment range of the environmental simulation piece 134 is-40 ℃ to 100 ℃. But not limited thereto.

In one embodiment, referring to FIG. 2, wheel body 131 is further provided with a barrier 1313, barrier 1313 testing the edge placement of inner rim 1312.

Specifically, the barrier 1313 is a protruding block that is provided protruding toward the axis of the wheel body 131. Thus, obstacles can be provided in the road surface simulation module 133 to test the obstacle crossing performance of the tire 200, thereby enriching the test functions of the tire characteristic test device and improving the overall quality of the tire characteristic test device 100.

Specifically, referring to fig. 2, the number of the barriers 1313 is two or more, and the two or more barriers 1313 are disposed at intervals along the circumferential direction of the testing inner edge 1312. This is advantageous in improving the experimental effect of the barrier 1313 on the performance test, and in turn, improving the overall quality of the tire characteristic testing apparatus 100.

In one embodiment, referring to FIG. 2, the inner edge 1312 and the outer edge are provided with a barrier 1313. Therefore, obstacle test conditions can be provided for both sides of the test tire 200, the technical requirements of obstacle crossing, cable crossing, friction, wear performance and dynamic characteristic test of the test tire 200 are met, the obstacle effect of the obstacle 1313 on the test tire 200 is further improved, and the reliability of a test result is improved.

In one embodiment, referring to fig. 1 and 2, the flywheel assembly 130 further includes a mounting platform 135, and the mounting platform 135 is disposed corresponding to the fork 123. In this way, the worker can mount and dismount the test tire 200 through the mounting platform 135, thereby improving the convenience of mounting and dismounting the test tire 200 and further improving the overall quality of the tire characteristic testing apparatus 100.

Further, referring to fig. 1 and 2, the mounting platform 135 is further provided with a guard rail. Thus, the working safety of workers during installation of the test tire 200 is improved, and the falling condition is avoided.

In one embodiment, referring to fig. 1 and 2, one end of the loading frame 121 is rotatably connected to the bracket 110 through the rotating shaft 111, and the loading assembly 122 includes a first loading member 1221. The first loading member 1221 is disposed on the bracket 110, and the first loading member 1221 is in driving connection with the loading frame 121, and the loading frame 121 is driven by the first loading member 1221 to rotate around the rotating shaft 111. Thus, the loading frame 121 can be driven to rotate around the rotating shaft 111 by the action of the first loading assembly 122, so that the wheel fork 123 drives the test tire 200 to realize a roll test on the test inner edge 1312 of the wheel body 131, and a dynamic loading test is realized.

The driving connection between the first loading element 1221 and the loading frame 121 should be understood that the first loading element 1221 is connected to the loading frame 121, and the first loading element 1221 is used as a source of loading force, and can provide a rolling force for the loading frame 121, so as to drive the loading frame 121 to rotate around the rotation axis 111, and further drive the wheel fork 123 and the test tire 200 to perform a rolling test on the test inner edge 1312.

Alternatively, the first loading member 1221 may be a motor, a cylinder, or other loading device.

Specifically, referring to fig. 1 and 2, the first loading element 1221 is an oil cylinder. Therefore, the loading force is large, the reliability is high, the control is simple, and the working efficiency of the side-tipping loading in the characteristic test is improved. The embodiment provides only a specific implementation of the first loading element 1221, but is not limited thereto.

In one embodiment, referring to fig. 1 and 2, the loading component 122 further includes a second loading element 1222. The second loading element 1222 is drivingly connected to the fork 123, and the second loading element 1222 drives the fork 123 to move along the height direction of the fork 123. Thus, the radial loading force of the tire can be adjusted through the loading action of the second loading element 1222, the loading action under a real state is simulated, the radial continuous dynamic loading is realized, the reliability of the test result of the wear performance test is further improved, and the use quality of the tire characteristic test device 100 is ensured.

In order to further understand and explain the height direction of the fork 123, taking fig. 2 as an example, the height direction of the fork 123 is the straight line S in fig. 1₁In the direction indicated by any of the above arrows.

Alternatively, the second loading element 1222 may be a motor, cylinder, ram, or other drive device.

Specifically, referring to fig. 1 and 2, the second loading element 1222 is a cylinder. Therefore, the loading force is large, the reliability is high, the control is simple, and the working efficiency and the service life of radial loading in the characteristic test can be improved. The embodiment provides only a specific implementation of the second loading element 1222, but not limited thereto.

In one embodiment, referring to fig. 1 and fig. 2, the loading assembly 122 further includes a third loading element 1223, the third loading element 1223 is drivingly connected to the fork 123, and the third loading element 1223 is configured to drive the fork 123 to rotate around its axis. Thus, the third loading member 1223 can drive the wheel fork 123 to rotate, so as to drive the test tire 200 to realize yaw torsion in the rolling process, realize three-way continuous dynamic loading, further test the yaw torsion performance of the tire 200, and ensure the use quality of the tire characteristic test device 100.

Alternatively, the third loading member 1223 may be a motor, a cylinder, or other driving means.

Specifically, referring to fig. 1 and 2, the third loading element 1223 is a cylinder. Therefore, the loading force is large, the reliability is high, the control is simple, and the working efficiency and the service life of radial loading in the characteristic test can be improved. The embodiment provides only a specific implementation of the third loading element 1223, but not limited thereto.

In one embodiment, referring to fig. 1 and 2, the support 110 is provided with a guide beam 112. The guide beam 112 is in guiding engagement with the loading frame 121. In this way, when the loading frame 121 rotates around the rotating shaft 111, the guide beam 112 can guide the loading frame 121, so as to improve the rotational stability of the loading frame 121, further ensure the testing stability of the roll test, and improve the testing accuracy and the reliability of the experimental result.

In one embodiment, referring to fig. 1 and 2, the number of the loading frames 121 is at least two. The two loading frames 121 are respectively disposed on two opposite sides of the fork 123, and both of the two loading frames 121 are rotatably connected to the bracket 110. Thus, on the one hand, the connection stability between the loading frame 121 and the fork 123 is improved, and the overall structural stability of the tire characteristic testing apparatus 100 is further improved. On the other hand, the two loading frames 121 are rotatably connected with the bracket 110, which is beneficial to further improving the test stability of the roll test, and further improving the test precision and the reliability of the test result.

In one embodiment, referring to fig. 1 and 2, the loading mechanism 120 further includes a force-measuring platform 124, and the force-measuring platform 124 is in inductive engagement with the fork 123. Thus, the loading force data continuously and dynamically loaded in three directions of radial direction, side inclination and yaw torsion on the wheel fork 123 can be detected through the force measuring platform 124, so that visualization and quantification operation of a test result are realized, the operation convenience and reliability of the tire characteristic testing device 100 are adjusted, and meanwhile, relevant parameters such as load, tire deformation, moment, pressure, slippage, internal and external temperatures of a wheel are measured, so that mechanical characteristic parameters of the tire on different road surfaces are obtained. The method provides test basis for the optimization design of the performances of aviation tires and other civil tires.

At present, a professional tire testing device which is large in size, can simulate the complex stress working condition of a tire and simulate different road surfaces and environments of the tire is not found in the prior art. The utility model discloses consider from different pavement environment of simulation and true operating mode, have cement, pitch, steel face, wet and smooth, thin ice, high temperature, low temperature, pavement simulation environmental design such as hinder more. The tire dynamic load test device can be used for not only carrying out a static tire performance test, but also carrying out a high-speed rolling tire dynamic load test, and obtaining the real mechanical characteristics of the tire under various road surface environments through the test. The test can be performed not only on the inner edge but also on the outer edge, the problem of tire characteristic test is solved, the design technology of the modern high-performance synthetic rubber tire is greatly promoted to be improved and researched, the problem of tire neck which is urgently needed to be solved by military aircraft and civil aircraft at present can be solved, and the test has important engineering application value and social and economic benefits for the development of aviation tires and various tire industries.

In one embodiment, a tire characteristic testing system (not shown) includes the tire characteristic testing apparatus 100 of any of the above.

In the tire characteristic testing system, during operation, the test tire 200 is mounted on the fork 123 such that the test tire 200 is located in the test chamber 1311 of the wheel body 131 and abuts the road surface simulation module 133. During testing, the driving member 132 drives the wheel body 131 to rotate, so that the test tire 200 rolls on the road surface simulation module 133. Because the pavement simulation module 133 can simulate various pavement materials, the pavement simulation module 133 is replaced or set to be the corresponding pavement material according to the environmental conditions required by the experiment, the pavement environments such as cement, asphalt, steel surfaces, wet and slippery, thin ice and the like are simulated, and then the real working environment of the tire 200 is restored and tested, so that the tire characteristic test variable is enriched, the accuracy and the reliability of the test result of the tire characteristic experiment related parameters are improved, and the method has a propulsion effect on the improvement and research and development of the modern high-performance synthetic rubber tire technology. Meanwhile, the tire characteristic test system and the test technology thereof fully consider multiple test functions and applicability thereof, have the function of testing the outer edge of the flywheel, comprehensively consider one set of equipment to be multiple-purpose, reduce the cost and improve the utilization rate of the equipment.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A tire characteristic testing device, characterized by comprising:

a support;

the loading mechanism comprises a loading frame, a loading assembly and a wheel fork, the loading frame is movably connected with the bracket, the loading assembly is in driving connection with the wheel fork, the wheel fork is connected with the loading frame, the wheel fork is used for mounting a test tire, and the loading assembly is used for loading acting force on the wheel;

the flywheel assembly, the flywheel assembly includes wheel body, driving piece and road surface simulation module, the wheel body with the driving piece drive is connected, the wheel body is equipped with test cavity and test inner edge, road surface simulation module set up in on the test inner edge, road surface simulation module is used for simulating multiple road surface material, and the test tire is used for setting up in the test cavity, and with road surface simulation module roll cooperation.

2. The tire property testing apparatus of claim 1, wherein said flywheel assembly further comprises an environmental simulator in controlled communication with said road surface simulation module, said environmental simulator adapted to vary the temperature of said road surface simulation module.

3. The tire characteristic testing device of claim 1, wherein said wheel body is further provided with a barrier member, said barrier member being disposed at an edge of said testing inner rim.

4. The tire characteristic testing device according to claim 3, wherein the number of the obstacles is two or more, and the two or more obstacles are provided at intervals in a circumferential direction of the testing inner edge; and/or the presence of a gas in the gas,

the flywheel assembly further comprises a mounting platform, and the mounting platform and the wheel fork are correspondingly arranged.

5. The tire property testing device of claim 1, wherein one end of the loading frame is rotatably connected to the support through a rotating shaft, the loading assembly includes a first loading member, the first loading member is disposed on the support and is drivingly connected to the loading frame, and the first loading member drives the loading frame to rotate around the rotating shaft.

6. The tire property testing device of claim 5, wherein the loading assembly further comprises a second loading member drivingly connected to the fork, the second loading member urging the fork in a height direction of the fork.

7. The tire property testing device of claim 5, wherein the loading assembly further comprises a third loading member drivingly connected to the fork, the third loading member configured to drive the fork about its axis.

8. A tire characteristic testing device according to claim 5, wherein said bracket is provided with a guide beam which is in guiding engagement with said loading frame; and/or the presence of a gas in the gas,

the loading frames are at least two and are respectively arranged on two opposite sides of the wheel fork, and the two loading frames are rotatably connected with the support.

9. A tire characteristic testing device according to any one of claims 1 to 8, wherein said loading mechanism further comprises a load platform in inductive engagement with said fork.

10. A tire characteristic testing system, characterized in that it comprises a tire characteristic testing apparatus according to any one of claims 1 to 9.