Sole wear resistance testing device and test method

Abstract

The present application provides a sole wear resistance testing device and a testing method, the testing device includes a horizontal transmission assembly, an inclined transmission assembly, a vertical transmission assembly, a shoe body fixing assembly and a friction testing platform, the horizontal transmission assembly is linearly connected to the main bracket along a first direction, the inclined transmission assembly is rotatably connected to the horizontal transmission assembly around the first direction and the second direction respectively, the vertical transmission assembly is linearly connected to the inclined transmission assembly along a third direction, the shoe body fixing assembly is arranged on the vertical transmission assembly, and the friction testing platform is linearly connected to the main bracket along the third direction. Through the three-dimensional motion coupling of the horizontal transmission assembly, the inclined transmission assembly and the vertical transmission assembly, a multi-degree-of-freedom motion structure of the test shoe body is constructed, thereby breaking through the single rotation plane limitation of traditional equipment, realizing continuous dynamic adjustment of the contact angle between the sole and the ground, and significantly improving the authenticity of the test conditions and the reliability of the test results.

Description

Technical Field

[0001] The present application belongs to the technical field of footwear product quality testing, and more specifically, relates to a sole wear resistance testing device and a testing method. Background Art

[0002] The wear resistance of the sole is one of the core indicators for measuring the quality of footwear products. Specifically, during the wearing and use of the shoe product, the sole will be subjected to complex stresses such as various dynamic frictions and various impact loads for a long time. Therefore, the wear resistance of the sole has an important impact on the service life, safety attributes and wearing experience of the shoe product.

[0003] At present, wear-resistance testing equipment generally uses a rotational friction mode to wear the soles, thereby evaluating the wear resistance of the soles through the basic wear of the soles. However, the single friction direction in the traditional rotational friction mode is difficult to simulate the compound friction conditions of variable angles and variable loads in real gait, making it difficult to simulate the actual wear conditions of the soles during actual use, which in turn leads to a lack of reliability in the test results. Summary of the Invention

[0004] The purpose of this application is to provide a sole wear resistance testing device and testing method, aiming to solve the problem that the single friction direction in the current traditional rotational friction mode is difficult to simulate the complex friction conditions of variable angles and variable loads in real gait, making it difficult to simulate the actual wear conditions of the sole during actual use, which in turn leads to a lack of reliability of the test results.

[0005] To achieve the above-mentioned objectives, the technical solution adopted by the present application is to provide a sole wear resistance testing device, comprising a main frame, a horizontal transmission assembly, an inclined transmission assembly, a vertical transmission assembly, a shoe body fixing assembly, and a friction testing platform, wherein the horizontal transmission assembly is linearly connected to the main frame along a first direction, the inclined transmission assembly is rotationally connected to the horizontal transmission assembly about the first direction and the second direction respectively, the vertical transmission assembly is linearly connected to the inclined transmission assembly along a third direction, the shoe body fixing assembly is arranged on the vertical transmission assembly, the friction testing platform is linearly connected to the main frame along the third direction, and the shoe body fixing assembly is spaced apart and located above the friction testing platform;

[0006] The first direction and the second direction both extend in the horizontal direction and are perpendicular to each other. The third direction extends in the vertical direction and is perpendicular to the first direction and the second direction.

[0007] In one embodiment, the horizontal transmission assembly includes a horizontal transmission motor, a horizontal transmission screw, a horizontal transmission nut, a horizontal guide slide and a horizontal transmission slider. The horizontal transmission motor, the horizontal transmission screw and the horizontal guide slide are respectively arranged on the main body bracket. The horizontal transmission motor rotates around a first direction and is connected to the horizontal transmission screw. The horizontal transmission nut is linearly connected to the horizontal transmission screw along the first direction. The horizontal transmission slider is linearly connected to the horizontal guide slide along the first direction, and the horizontal transmission nut is fixedly connected to the horizontal transmission slider.

[0008] In one embodiment, the horizontal guide slide rod includes a first guide rod body and a second guide rod body, and the first guide rod body and the second guide rod body are arranged at intervals on opposite sides of the horizontal transmission screw rod along the second direction. The horizontal transmission slider includes a horizontal slider body, a first connecting ear and a second connecting ear. The first connecting ear is linearly connected to the first guide rod body along the first direction and fixedly connected to the horizontal slider body. The second connecting ear is linearly connected to the second guide rod body along the first direction and fixedly connected to the horizontal slider body. The horizontal transmission nut is fixedly connected to the horizontal slider body.

[0009] In one embodiment, the tilt transmission assembly includes a tilt transmission bracket, a front and rear tilt unit, and a left and right tilt unit. The front and rear tilt unit is arranged on the horizontal slider body and is connected to the tilt transmission bracket by rotating around the second direction. The left and right tilt unit is arranged on the horizontal slider body and is connected to the tilt transmission bracket by rotating around the first direction.

[0010] In one embodiment, the tilt transmission bracket includes a tilt bracket body, a bracket coupling unit, a first coupling slider, and a second coupling slider; the front-back tilt unit includes a first guide tube, a first electric rod, a first coupling unit, a second guide tube, a second electric rod, and a second coupling unit; and the left-right tilt unit includes a tilt transmission motor, a movable gear, and a stationary gear.

[0011] The bracket coupling unit is hinged to the horizontal slider body around the second direction, and the bracket coupling unit is hinged to the tilted bracket body around the first direction. The first guide tube body and the second guide tube body are arranged at intervals on opposite sides of the bracket coupling unit along the first direction and are respectively fixed on the horizontal slider body. The first electric rod body is linearly connected to the first guide tube body along the third direction. The first coupling unit is hinged to the first electric rod body around the second direction. The first coupling slider is hinged to the first coupling unit around the first direction, and the first coupling slider is adaptively slidably connected to the tilted bracket body. The second electric rod body is linearly connected to the second guide tube body along the third direction. The second coupling unit is hinged to the second electric rod body around the second direction. The second coupling slider is hinged to the second coupling unit around the first direction, and the second coupling slider is adaptively slidably connected to the tilted bracket body. The tilt transmission motor is fixedly arranged on the bracket coupling unit and rotates around the first direction to connect the movable gear. The stationary gear is fixedly arranged on the tilted bracket body, and the movable gear is meshed and connected to the stationary gear around the first direction.

[0012] In one embodiment, the tilt transmission bracket also includes a first connecting shaft and a second connecting shaft. A first limiting groove is provided at the bottom of the horizontal slider body, the first connecting shaft extends along the second direction and is arranged in the first limiting groove, the upper end of the bracket coupling unit is hinged to the first connecting shaft around the second direction, the first limiting groove is used to limit the swing stroke of the bracket coupling unit around the second direction, a second limiting groove is provided at the top of the tilt bracket body, the second connecting shaft extends along the first direction and is arranged in the second limiting groove, the lower end of the bracket coupling unit is hinged to the second connecting shaft around the first direction, and the second limiting groove is used to limit the swing stroke of the tilt bracket body around the first direction.

[0013] In one embodiment, a first limiting slide groove and a second limiting slide groove are further provided on the top of the tilting bracket body, a first guide slide rail is provided inside the first limiting slide groove, the first coupling slider is adaptively slidably connected to the first guide slide rail and limited in the first limiting slide groove, a second guide slide rail is provided inside the second limiting slide groove, the second coupling slider is adaptively slidably connected to the second guide slide rail and limited in the second limiting slide groove.

[0014] In one embodiment, the left and right tilting units further include a transmission gear and a constant torque coupling, the transmission gear is arranged on the bracket coupling unit, the stationary gear is arranged on the tilting bracket body through the constant torque coupling, the movable gear is meshed and connected to the transmission gear around the first direction, and the transmission gear is meshed and connected to the stationary gear around the first direction.

[0015] In one embodiment, the vertical transmission assembly includes a vertical transmission electric cylinder, a vertical guide sleeve and a vertical transmission bracket. The vertical transmission electric cylinder is arranged on the inclined bracket body and linearly connected to the vertical transmission bracket along a third direction. The vertical guide sleeve is guided and connected between the inclined bracket body and the vertical transmission bracket along the third direction.

[0016] In one embodiment, the vertical transmission assembly also includes a vertical transmission motor, a vertical transmission worm gear, a vertical guide bearing, a vertical transmission worm, a third coupling unit, a fourth coupling unit and a shoe last hanging plate. The vertical transmission motor and the vertical guide bearing are respectively fixedly arranged on the vertical transmission bracket. The vertical transmission motor rotates around the third direction to connect to the vertical transmission worm gear. The vertical transmission worm gear is linearly connected to the vertical transmission worm in the vertical guide bearing along the third direction. The third coupling unit and the fourth coupling unit are arranged at intervals along the first direction. The third coupling unit is fixedly connected to the vertical transmission worm gear. The fourth coupling unit is fixedly connected to the vertical transmission worm gear and the vertical transmission bracket. The upper part of one end of the shoe last hanging plate extending along the first direction is hinged to the third coupling unit around the second direction, and the upper part of the other end extending along the first direction is hinged to the fourth coupling unit around the second direction.

[0017] In one embodiment, the shoe body fixing assembly includes a connecting column and a shoe last main body, the connecting column is fixedly connected to the bottom of the shoe last suspension plate, the shoe last main body is fixedly connected to one end of the connecting column facing away from the shoe last suspension plate, and a first vertical force sensor is provided at the bottom of one end of the shoe last main body extending along the first direction, and a second vertical force sensor is provided at the bottom of the other end extending along the first direction.

[0018] In one embodiment, the friction testing platform includes a friction testing bracket, a friction testing plate, a bracket transmission unit and a bracket guide unit. The bracket transmission unit is arranged on the main bracket and linearly connected to the friction testing bracket along a third direction. The bracket guide unit is guided and connected between the main bracket and the friction testing bracket along the third direction. A plate accommodating groove is provided on the top of the friction testing bracket. The friction testing plate is fixedly arranged in the plate accommodating groove and is spaced below the shoe last main body. A first horizontal force sensor is provided on the side wall of one end of the plate accommodating groove extending along the first direction, and a dust suction interface is also provided on the side wall of the plate accommodating groove.

[0019] A method for testing the wear resistance of a shoe sole based on the above-mentioned wear resistance testing device comprises:

[0020] Fix the test shoe body through the shoe body fixing assembly, control the vertical transmission assembly and the friction test platform to adjust the sole of the test shoe body to a horizontal state, and pre-contact the friction test platform;

[0021] The sole of the test shoe is subjected to multiple wear tests, including:

[0022] Controlling the horizontal transmission assembly to drive the test shoe body to move forward in a first direction for a first duration, and controlling the tilt transmission assembly to drive the test shoe body to tilt backward in a second direction to contact the friction test platform for a first duration, and controlling the tilt transmission assembly to drive the test shoe body to tilt leftward or rightward in the first direction to contact the friction test platform for a first duration, and controlling the vertical transmission assembly to apply a first pressure downward in a third direction to the test shoe body during the first duration, wherein the pressure value of the first pressure gradually increases from an initial value to a preset value during the first duration;

[0023] Controlling the horizontal transmission assembly to drive the test shoe body to move forward in the first direction for a second time period, and controlling the tilt transmission assembly to drive the test shoe body to horizontally contact the friction test platform in the second direction for a second time period, and controlling the tilt transmission assembly to drive the test shoe body to tilt leftward or rightward in the first direction to contact the friction test platform for a second time period, and controlling the vertical transmission assembly to apply a second pressure downward to the test shoe body in the third direction during the second time period, wherein the pressure value of the second pressure is synchronized with the second time period and is always maintained at a preset value;

[0024] Controlling the horizontal transmission assembly to drive the test shoe body to move forward in the first direction for a third time period, and simultaneously controlling the tilt transmission assembly to drive the test shoe body to tilt forward in the second direction to contact the friction test platform for a third time period, and simultaneously controlling the tilt transmission assembly to drive the test shoe body to tilt leftward or rightward in the first direction to contact the friction test platform for a third time period, and simultaneously controlling the vertical transmission assembly to apply a third pressure downward to the test shoe body along the third direction during the third time period, wherein the pressure value of the third pressure is synchronized with the third time period and gradually decreases from a preset value to an initial value;

[0025] Control the horizontal transmission component to drive the test shoe body to move backward in the first direction for a fourth time period, and at the same time control the inclined transmission component to drive the test shoe body to move horizontally away from the friction test platform in the second direction for a fourth time period, and at the same time control the inclined transmission component to drive the test shoe body to move horizontally away from the friction test platform in the first direction for a fourth time period, and at the same time control the vertical transmission component to apply a fourth pressure downward to the test shoe body along the third direction during the fourth time period, wherein the pressure value of the fourth pressure is synchronized with the fourth time period and always remains at the initial value.

[0026] The beneficial effect of the sole wear resistance testing device and testing method provided in the present application is that, compared with the prior art, the above-mentioned sole wear resistance testing device includes a horizontal transmission assembly, an inclined transmission assembly, a vertical transmission assembly, a shoe body fixing assembly and a friction testing platform, wherein the horizontal transmission assembly is linearly connected to the main frame along a first direction, the inclined transmission assembly is rotationally connected to the horizontal transmission assembly around the first direction and the second direction respectively, the vertical transmission assembly is linearly connected to the inclined transmission assembly along a third direction, the shoe body fixing assembly is arranged on the vertical transmission assembly, the friction testing platform is linearly connected to the main frame along the third direction, and the shoe body fixing assembly is spaced above the friction testing platform. In this way, the test shoe is fixed to the shoe body fixing assembly, and a multi-degree-of-freedom motion structure of the test shoe body is constructed through the three-dimensional motion coupling of the horizontal transmission assembly, the inclined transmission assembly, and the vertical transmission assembly, thereby breaking through the single rotation plane limitation of traditional equipment, and can accurately reproduce the variable-angle friction trajectory of the foot during the landing and lifting-off phase during walking, realize continuous dynamic adjustment of the contact angle between the sole and the ground, and significantly improve the authenticity of the test conditions and the reliability of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0028] Figure 1 A schematic structural diagram of a shoe sole wear resistance testing device provided in one embodiment of the present application;

[0029] Figure 2 for Figure 1 A schematic diagram of the structure of the horizontal transmission assembly, inclined transmission assembly, vertical transmission assembly and shoe body fixing assembly in the sole wear resistance testing device shown;

[0030] Figure 3 for Figure 1 A schematic diagram of the structure of the horizontal transmission assembly and the inclined transmission assembly in the sole wear resistance testing device shown;

[0031] Figure 4 for Figure 1 The schematic diagram of the structure of the horizontal transmission assembly in the sole wear resistance testing device shown;

[0032] Figure 5 for Figure 1 The schematic diagram of the structure of the tilt transmission assembly in the sole wear resistance testing device shown;

[0033] Figure 6 for Figure 5 A schematic diagram of a partially enlarged structure of the tilt transmission assembly shown;

[0034] Figure 7 for Figure 5 A schematic diagram of a partially enlarged structure of the tilt transmission assembly shown;

[0035] Figure 8 for Figure 5 A schematic diagram of a partially enlarged structure of the tilt transmission assembly shown;

[0036] Figure 9 for Figure 1 A schematic structural diagram of the vertical transmission assembly and the shoe body fixing assembly in the sole wear resistance testing device shown;

[0037] Figure 10 for Figure 9 The vertical transmission assembly shown is a schematic structural diagram after omitting the vertical transmission bracket;

[0038] Figure 11 for Figure 1 The structural diagram of the friction test platform in the sole wear resistance testing device shown;

[0039] Figure 12 for Figure 11 A schematic diagram of a local enlarged structure of the friction test platform shown;

[0040] Figure 13 A schematic flow chart of a method for testing the wear resistance of a shoe sole provided in one embodiment of the present application;

[0041] Figure 14 A schematic diagram of the wear resistance test process provided in one embodiment of the present application.

[0042] In the figure: 10, sole wear resistance test device; 100, main frame; 200, horizontal transmission assembly; 210, horizontal transmission motor; 220, horizontal transmission screw; 230, horizontal transmission nut; 240, horizontal guide slide; 241, first guide rod body; 242, second guide rod body; 250, horizontal transmission slider; 251, horizontal slider body; 252, first limiting groove; 253, first connecting lug; 254, second connecting lug; 300, tilt transmission assembly; 310 , tilt transmission bracket; 311, tilt bracket body; 312, bracket coupling unit; 313, first coupling slider; 314, second coupling slider; 315, first connecting shaft; 316, second connecting shaft; 317, second limiting groove; 3181, first limiting slide; 3182, first guide rail; 3191, second limiting slide; 3192, second guide rail; 320, front and rear tilt unit; 321, first guide tube; 322, first electric rod; 323, first Coupling unit; 324, second guide tube; 325, second electric rod; 326, second coupling unit; 330, left and right tilt unit; 331, tilt transmission motor; 332, movable gear; 333, stationary gear; 334, transmission gear; 400, vertical transmission assembly; 410, vertical transmission electric cylinder; 420, vertical guide sleeve; 430, vertical transmission bracket; 440, vertical transmission motor; 450, vertical transmission worm gear; 460, vertical guide bearing; 470, vertical transmission Worm; 481, third connecting shaft unit; 482, fourth connecting shaft unit; 490, shoe last hanging plate; 500, shoe body fixing assembly; 510, connecting column head; 520, shoe last main body; 521, first vertical force sensor; 522, second vertical force sensor; 600, friction test platform; 610, friction test bracket; 611, plate accommodating groove; 612, first horizontal force sensor; 620, friction test plate; 630, bracket transmission unit; 640, bracket guide unit. DETAILED DESCRIPTION

[0043] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0044] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0045] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0046] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0047] Please also refer to Figure 1 and Figure 2 , the sole wear resistance performance testing device 10 provided in an embodiment of the present application is now described. The above-mentioned sole wear resistance performance testing device 10 includes a main frame 100, a horizontal transmission assembly 200, an inclined transmission assembly 300, a vertical transmission assembly 400, a shoe body fixing assembly 500 and a friction testing platform 600, wherein the horizontal transmission assembly 200 is linearly connected to the main frame 100 along a first direction, the inclined transmission assembly 300 is rotatably connected to the horizontal transmission assembly 200 around the first direction and the second direction respectively, the shoe body fixing assembly 500 is arranged on the vertical transmission assembly 400, the friction testing platform 600 is linearly connected to the main frame 100 along a third direction, and the shoe body fixing assembly 500 is spaced above the friction testing platform 600.

[0048] It should be noted that the above-mentioned first direction and second direction both extend in the horizontal direction, and the first direction and the second direction are perpendicular to each other, and the third direction extends in the vertical direction, and the third direction is perpendicular to the first direction and the second direction. Specifically, in this embodiment, the first direction is the x-axis direction in the spatial rectangular coordinate system, the second direction is the y-axis direction in the spatial rectangular coordinate system, and the third direction is the z-axis direction in the spatial rectangular coordinate system.

[0049] It can be understood that, in this article, any element is linearly connected to the corresponding element along any direction (first direction, second direction or third direction), which specifically means that the element is linearly reciprocatingly connected to the corresponding element along the corresponding direction, and any element is rotationally connected to the corresponding element around any direction (first direction, second direction or third direction), which specifically means that the element is rotationally connected to the corresponding element around an axis parallel to the corresponding direction.

[0050] Please also refer to Figure 1 and Figure 4 In this embodiment, a spirit level (not shown) is provided on the main support 100, and four leveling feet (not shown) are provided at the bottom of the main support 100. By adjusting each leveling foot and observing the spirit level, the main support 100 can be adjusted to a horizontal state. The horizontal transmission assembly 200 includes a horizontal transmission motor 210, a horizontal transmission screw rod 220, a horizontal transmission nut 230, a horizontal guide slide rod 240 and a horizontal transmission slider 250. Among them, the horizontal transmission screw rod 220 and the horizontal guide slide rod 240 both extend along the first direction and are respectively provided on the main support 100. The horizontal transmission motor 210 rotates around the first direction and is connected to one end of the horizontal transmission screw rod 220. The horizontal transmission The other end of the screw rod 220 is connected to the rotating bearing and rotates around the first direction. The rotating bearing is correspondingly fixed on the main bracket 100. The horizontal transmission nut 230 is linearly connected to the horizontal transmission screw rod 220 along the first direction. The horizontal transmission slider 250 is linearly connected to the horizontal guide slider 240 along the first direction, and the horizontal transmission nut 230 is fixedly connected to the horizontal transmission slider 250. In this way, when the horizontal transmission motor 210 rotates the horizontal transmission screw rod 220 around the first direction, the horizontal transmission screw rod 220 correspondingly drives the horizontal transmission nut 230 to move linearly along the first direction, and then synchronously drives the horizontal transmission slider 250 to move linearly back and forth along the first direction through the horizontal transmission nut 230.

[0051] Further, combined with Figure 4 In this embodiment, the above-mentioned horizontal guide slide rod 240 includes a first guide rod body 241 and a second guide rod body 242, wherein the first guide rod body 241 and the second guide rod body 242 are arranged at intervals on opposite sides of the horizontal transmission screw rod 220 along the second direction, and the horizontal transmission slider 250 includes a horizontal slider body 251, two first connecting ears 253 and two second connecting ears 254, the two first connecting ears 253 are linearly connected to the first guide rod body 241 along the first direction and are respectively fixedly connected to the horizontal slider body 251, the two second connecting ears 254 are linearly connected to the second guide rod body 242 along the first direction and are respectively fixedly connected to the horizontal slider body 251, the horizontal transmission nut 230 is fixedly connected to the horizontal slider body 251, and the horizontal slider body 251 is hung below the horizontal transmission nut 230 through the two first connecting ears 253 and the two second connecting ears 254, and the horizontal transmission nut 230 is fixedly connected to the top of the horizontal slider body 251.

[0052] See also Figure 5In this embodiment, the tilt transmission assembly 300 includes a tilt transmission bracket 310, a front-back tilt unit 320, and a left-right tilt unit 330, wherein the front-back tilt unit 320 is arranged on the horizontal slider body 251 and is connected to the tilt transmission bracket 310 by rotation around the second direction, and the left-right tilt unit 330 is arranged on the horizontal slider body 251 and is connected to the tilt transmission bracket 310 by rotation around the first direction. The front-back tilt unit 320 is used to tilt the test shoe body forward around the second direction or tilt the test shoe body backward around the second direction, and then, under the cooperation of the horizontal slider body 251, the front side of the sole of the test shoe body is tested to test the shoe body. A friction test is performed on the rear side of the sole, and the left and right tilting units 330 are used to tilt the test shoe body to the left around the first direction or to tilt the test shoe body to the right around the first direction, and then, with the cooperation of the horizontal slider body 251, a friction test is performed on the left side of the sole of the test shoe body and the right side of the sole of the test shoe body; it can be understood that when the test shoe body is a left shoe, the test shoe body tilting to the left around the first direction is tilted toward the outside of the shoe body, and the test shoe body tilting to the right around the first direction is tilted toward the inside of the shoe body; when the test shoe body is a right shoe, the test shoe body tilting to the left around the first direction is tilted toward the inside of the shoe body, and the test shoe body tilting to the right around the first direction is tilted toward the outside of the shoe body.

[0053] Please also refer to Figure 5 、 Figure 6 、 Figure 7 and Figure 8In this embodiment, the tilt transmission bracket 310 includes a tilt bracket body 311, a bracket coupling unit 312, a first coupling slider 313, and a second coupling slider 314. The front-back tilt unit 320 includes a first guide tube body 321, a first electric rod body 322, a first coupling unit 323, a second guide tube body 324, a second electric rod body 325, and a second coupling unit 326. The left-right tilt unit 330 includes a tilt transmission motor 331, a movable gear 332, and a stationary gear 333. The bracket coupling unit 312 is hinged to the horizontal slider body 251 about the second direction. The first guide tube body 321 and the second guide tube body 324 are arranged at intervals on opposite sides of the bracket coupling unit 312 along the first direction and are respectively fixedly disposed on the bottom of the horizontal slider body 251. The first electric rod body 322 is linearly connected to the first guide tube body along the third direction. On 321, the first coupling unit 323 is hinged to the first electric rod body 322 around the second direction, the first coupling slider 313 is hinged to the first coupling unit 323 around the first direction, and the first coupling slider 313 is adaptively slidably connected to the tilt bracket body 311, the second electric rod body 325 is linearly connected to the second guide tube body 324 along the third direction, the second coupling unit 326 is hinged to the second electric rod body 325 around the second direction, the second coupling slider 314 is hinged to the second coupling unit 326 around the first direction, and the second coupling slider 314 is adaptively slidably connected to the tilt bracket body 311, the tilt transmission motor 331 is fixedly set on the bracket coupling unit 312 and rotates around the first direction to connect the movable gear 332, the stationary gear 333 is fixedly set on the tilt bracket body 311, and the movable gear 332 is meshed and connected to the stationary gear 333 around the first direction.

[0054] It can be seen that by alternating the movement of the first electric rod body 322 and the second electric rod body 325 along the third direction, the tilt bracket body 311 can be tilted forward around the second direction or tilted backward around the second direction. The corresponding first coupling unit 323, the second coupling unit 326, the first coupling slider 313 and the second coupling slider 314 are used to adaptively compensate for the position offset and angular deflection generated when the tilt bracket body 311 tilts forward or backward. On this basis, the movable gear 332 is driven to rotate back and forth around the first direction by the tilt transmission motor 331, so that the tilt bracket body 311 can be tilted to the left around the first direction or tilted to the right around the first direction.

[0055] Please also refer to Figure 3 、 Figure 5 and Figure 6In this embodiment, the above-mentioned tilt transmission bracket 310 further includes a first connecting shaft 315 and a second connecting shaft 316. The bottom of the horizontal slider body 251 is provided with a first limiting groove 252. The first connecting shaft 315 is extended along the second direction and is arranged in the first limiting groove 252. The upper end of the bracket coupling unit 312 is hinged to the first connecting shaft 315 around the second direction. The first limiting groove 252 is used to limit the swing stroke of the bracket coupling unit 312 around the second direction. The top of the tilt bracket body 311 is provided with a second limiting groove 317. The second connecting shaft 316 is extended along the first direction and is arranged in the second limiting groove 252. In the second limiting groove 317, the lower end of the bracket coupling unit 312 is hinged to the second connecting shaft 316 around the first direction, and the second limiting groove 317 is used to limit the swing stroke of the tilt bracket body 311 around the first direction; it should be noted that by limiting the range of movement of the first electric rod body 322 along the third direction, and the range of movement of the second electric rod body 325 along the third direction, it is possible to adapt to the adjustment of the swing stroke of the bracket coupling unit 312 around the second direction, and by limiting the rotation angle of the tilt transmission motor 331 around the first direction, it is possible to adapt to the adjustment of the swing stroke of the tilt bracket body 311 around the first direction.

[0056] Furthermore, in this embodiment, a first limiting groove 3181 and a second limiting groove 3191 are also provided on the top of the above-mentioned inclined bracket body 311. A first guide rail 3182 is provided inside the first limiting groove 3181. The first coupling slider 313 is adaptively slidably connected to the first guide rail 3182 and limited in the first limiting groove 3181. A second guide rail 3192 is provided inside the second limiting groove 3191. The second coupling slider 314 is adaptively slidably connected to the second guide rail 3192 and limited in the second limiting groove 3191.

[0057] Specifically, in the present embodiment, the first limiting slide groove 3181 is internally provided with two sections of first guide rails 3182 arranged opposite to each other, and the two opposite sides of the first coupling slider 313 are respectively inserted into the two sections of the first guide rails 3182, and the two sections of the first guide rails 3182 are provided with a first abutting end and a second abutting end along the movement trajectory of the first coupling slider 313 for limiting the movement stroke of the first coupling slider 313, thereby limiting the movement range of the first coupling slider 313 in the first limiting slide groove 3181 and preventing the first coupling slider 313 from sliding out of the first limiting slide groove 3181. The slide groove 3181 and the second limiting slide groove 3191 are internally provided with two sections of second guide rails 3192 arranged opposite to each other, and the corresponding opposite sides of the second coupling slider 314 are respectively inserted into the two sections of the second guide rails 3192, and the two sections of the second guide rails 3192 are provided with a third abutment end and a fourth abutment end along the movement trajectory of the second coupling slider 314 for limiting the movement stroke of the second coupling slider 314, thereby limiting the movement range of the second coupling slider 314 in the second limiting slide groove 3191 and preventing the second coupling slider 314 from sliding out of the second limiting slide groove 3191.

[0058] Furthermore, in this embodiment, the above-mentioned left and right tilting units 330 also include a transmission gear 334 and a constant torque coupling (not shown in the figure), wherein the transmission gear 334 is arranged on the bracket coupling unit 312 and rotates around the first direction, and the stationary gear 333 is arranged on the tilting bracket body 311 through the constant torque coupling. The movable gear 332 is meshed and connected to the transmission gear 334 around the first direction, and the transmission gear 334 is meshed and connected to the stationary gear 333 around the first direction. In this way, when the tilting transmission bracket 310 rotates around the first direction to a certain angle, so that the actual torque on the constant torque coupling reaches the predetermined torque, the tilting transmission bracket 310 is immediately reversed and reset to a horizontal state, thereby simulating the friction situation when the left side or the right side of the sole is not fully affected by the weight of the human body when the human body walks.

[0059] It should be noted that, in this embodiment, the above-mentioned movable gear 332 includes a movable gear 332 body (not shown in the figure) and a first shell (not shown in the figure), the transmission gear 334 includes a transmission gear 334 body (not shown in the figure) and a second shell (not shown in the figure), and the stationary gear 333 includes a stationary gear 333 body (not shown in the figure) and a third shell (not shown in the figure). The first shell, the second shell and the third shell are fixedly connected to each other and fixedly arranged on the housing of the tilt transmission motor 331. The first shell, the second shell and the third shell respectively cover the movable gear 332 body, the transmission gear 334 body and the stationary gear 333 body.

[0060] See also Figure 9In this embodiment, the above-mentioned vertical transmission assembly 400 includes a vertical transmission electric cylinder 410, a vertical guide sleeve 420 and a vertical transmission bracket 430, wherein the vertical transmission electric cylinder 410 is arranged on the inclined bracket body 311 and linearly connected to the vertical transmission bracket 430 along the third direction, and the vertical guide sleeve 420 is guided and connected between the inclined bracket body 311 and the vertical transmission bracket 430 along the third direction; it should be noted that, in addition to being used to adjust the position of the vertical transmission bracket 430 along the third direction, the vertical transmission electric cylinder 410 is also used to provide axial pressure to the test shoe body along the third direction, thereby simulating the human body's gravity and the human body's pressure in the vertical direction during actual wearing of the test italic body. The vertical guide sleeve 420 is used to provide auxiliary guiding effect on the vertical transmission electric cylinder 410 along the third direction, and improve the overall structural strength and transmission stability of the vertical transmission assembly 400.

[0061] Specifically, in this embodiment, the above-mentioned vertical transmission assembly 400 includes four groups of vertical guide sleeves 420 that are respectively connected along the third direction between the inclined bracket body 311 and the vertical transmission bracket 430, and each group of vertical guide sleeves 420 includes a vertical guide tube body (not shown in the figure) and a vertical guide column, wherein one end of the vertical guide tube body is fixedly connected to the inclined bracket body 311, the vertical guide column is linearly connected to the vertical guide tube body along the third direction, and one end of the vertical guide column facing away from the vertical guide tube body is fixedly connected to the vertical transmission bracket 430.

[0062] See also Figure 10In this embodiment, the vertical transmission assembly 400 further includes a vertical transmission motor 440, a vertical transmission worm gear 450, a vertical guide bearing 460, a vertical transmission worm 470, a third coupling unit 481, a fourth coupling unit 482 and a shoe last hanging plate 490, wherein the vertical transmission motor 440 and the vertical guide bearing 460 are respectively fixedly arranged on the vertical transmission bracket 430, the vertical transmission motor 440 rotates around the third direction and is connected to the vertical transmission worm gear 450, the vertical transmission worm gear 450 is linearly connected to the vertical transmission worm 470 in the vertical guide bearing 460 along the third direction, the third coupling unit 481 and the fourth coupling unit 482 are arranged at intervals along the first direction, the third coupling unit 481 is fixedly connected to the vertical transmission worm 470, and the fourth coupling unit 482 is fixedly connected to the vertical transmission The movable worm 470 vertically transmits the bracket 430, and the upper part of one end of the shoe last hanging plate 490 extending along the first direction is hinged to the third connecting shaft unit 481 around the second direction, and the upper part of the other end extending along the first direction is hinged to the fourth connecting shaft unit 482 around the second direction; it should be noted that, considering the difference in the thickness of the front side of the sole and the thickness of the rear side of the sole of different test shoes (usually the thickness of the front side of the sole is smaller than the thickness of the rear side of the sole), the vertical transmission worm gear 450 is rotated around the third direction by the vertical transmission motor 440, thereby driving the vertical transmission worm 470 to move downward along the third direction, and then when the thickness of the front side of the sole of the test shoe is smaller than the thickness of the rear side of the sole, the shoe last hanging plate 490 is driven to tilt forward around the second direction, so that the front side and the rear side of the sole of the test shoe can be adjusted to the same horizontal plane before testing.

[0063] See also Figure 10 In this embodiment, the shoe body fixing assembly 500 includes a connecting column 510 and a shoe last main body 520, wherein the connecting column 510 is fixedly connected to the bottom of the shoe last hanging plate 490, and the shoe last main body 520 is fixedly connected to one end of the connecting column 510 facing away from the shoe last hanging plate 490, and a first vertical force sensor 521 is provided at the bottom of one end of the shoe last main body 520 extending along the first direction, and a second vertical force sensor 522 is provided at the bottom of the other end extending along the first direction; it should be noted that the first vertical force sensor The first vertical pressure sensor is used to detect the vertical pressure F1 exerted on the front side of the sole of the test shoe body, and the second vertical pressure sensor is used to detect the vertical pressure F2 exerted on the rear side of the sole of the test shoe body. It should be noted that before the test, the vertical transmission worm gear 450 is rotated around the third direction by the vertical transmission motor 440, thereby driving the vertical transmission worm 470 to move downward along the third direction until the vertical pressure F1 exerted on the front side of the sole is consistent with the vertical pressure F2 exerted on the rear side of the sole of the test shoe body. It is then deemed that the front side of the sole and the rear side of the sole have been adjusted to the same horizontal plane.

[0064] Please also refer to Figure 11 and Figure 12In this embodiment, the friction testing platform 600 includes a friction testing bracket 610, a friction testing plate 620, a bracket transmission unit 630 and a bracket guide unit 640, wherein the bracket transmission unit 630 is fixedly arranged on the main bracket 100 and linearly connected to the friction testing bracket 610 along the third direction, the bracket guide unit 640 is guided and connected between the main bracket 100 and the friction testing bracket 610 along the third direction, a plate accommodating groove 611 is provided on the top of the friction testing bracket 610, the friction testing plate 620 is arranged in the plate accommodating groove 611 and is spaced below the shoe last main body 520, a first horizontal force sensor 612 is provided on one end side wall of the plate accommodating groove 611 extending along the first direction, and the plate accommodating groove 611 The side wall is also provided with a dust suction interface (not shown in the figure); it should be noted that the bracket transmission unit 630 is used to adjust the position of the friction test bracket 610 along the third direction, and the bracket guide unit 640 is used to provide auxiliary guidance to the bracket transmission unit 630 along the third direction, and improve the overall structural strength and transmission stability of the friction test platform 600. The friction test plate body 620 is detachably arranged in the accommodating groove to facilitate the replacement of friction test plates 620 with different friction coefficients according to different test operations. An external dust suction device (not shown in the figure) is connected to the dust suction interface to absorb debris dropped by the test shoe body during the friction test. The first horizontal force sensor 612 is used to detect the horizontal friction force F3 exerted on the sole when the test shoe body moves forward in the first direction.

[0065] Thus, the calculation formula for the overall friction coefficient μ1 of the sole of the test shoe body is:

[0066] μ1=F3 / (F1+F2+G)

[0067] Where F3 is the horizontal friction force exerted on the test shoe when it moves in the first direction, F1 is the vertical pressure exerted on the front side of the sole of the test shoe, F2 is the vertical pressure exerted on the back side of the sole of the test shoe, and G is the corresponding weight of the test shoe.

[0068] See also Figure 13 , Figure 13 The flowchart of the sole wear resistance testing method provided in one embodiment of the present application is as follows. The sole wear resistance testing method may include the following steps.

[0069] S101 , fix the test shoe body through the shoe body fixing assembly 500 , control the vertical transmission assembly 400 and the friction test platform 600 to adjust the sole of the test shoe body to a horizontal state, and pre-contact the friction test platform 600 .

[0070] S102. Perform multiple wear resistance tests on the sole of the test shoe.

[0071] See also Figure 14 , Figure 14 A schematic diagram of a wear test process according to an embodiment of the present application is provided. The wear test may include the following steps.

[0072] S201, controlling the horizontal transmission assembly 200 to drive the test shoe body to move forward in a first direction for a first duration, and simultaneously controlling the tilt transmission assembly 300 to drive the test shoe body to tilt backward in a second direction to contact the friction test platform 600 for a first duration, and simultaneously controlling the tilt transmission assembly 300 to drive the test shoe body to tilt leftward or rightward in the first direction to contact the friction test platform 600 for a first duration, and simultaneously controlling the vertical transmission assembly 400 to apply a first pressure downward in a third direction to the test shoe body during the first duration, wherein the pressure value of the first pressure gradually increases from an initial value to a preset value during the first duration;

[0073] S202, controlling the horizontal transmission assembly 200 to drive the test shoe body to move forward in the first direction for a second duration, and controlling the tilt transmission assembly 300 to drive the test shoe body to horizontally contact the friction test platform 600 in the second direction for a second duration, and controlling the tilt transmission assembly 300 to drive the test shoe body to tilt leftward or rightward in the first direction to contact the friction test platform 600 for a second duration, and controlling the vertical transmission assembly 400 to apply a second pressure downward in the third direction to the test shoe body during the second duration, wherein the pressure value of the second pressure is synchronized with the second duration and is always maintained at a preset value;

[0074] S203, controlling the horizontal transmission assembly 200 to drive the test shoe body to move forward in the first direction for a third time period, and simultaneously controlling the tilt transmission assembly 300 to drive the test shoe body to tilt forward in the second direction to contact the friction test platform 600 for a third time period, and simultaneously controlling the tilt transmission assembly 300 to drive the test shoe body to tilt leftward or rightward in the first direction to contact the friction test platform 600 for a third time period, and simultaneously controlling the vertical transmission assembly 400 to apply a third pressure downward to the test shoe body along the third direction during the third time period, wherein the pressure value of the third pressure is synchronized with the third time period and gradually decreases from a preset value to an initial value;

[0075] S204, control the horizontal transmission assembly 200 to drive the test shoe body to move backward in the first direction for the fourth time period, and at the same time control the inclined transmission assembly 300 to drive the test shoe body to move horizontally away from the friction test platform 600 in the second direction for the fourth time period, and at the same time control the inclined transmission assembly 300 to drive the test shoe body to move horizontally away from the friction test platform 600 in the first direction for the fourth time period, and at the same time control the vertical transmission assembly 400 to apply a fourth pressure downward to the test shoe body along the third direction during the fourth time period, wherein the pressure value of the fourth pressure is synchronized and always maintained at the initial value for the fourth time period.

[0076] Among them, in any wear resistance test, the left and right tilting units 330 in steps S201, S202, S203, and S204 drive the test shoe body to tilt in the same direction around the first direction; in two adjacent wear resistance tests, the left and right tilting units 330 in steps S201, S202, S203, and S204 in one wear resistance test drive the test shoe body to tilt in the first direction, which is opposite to the left and right tilting units 330 in steps S201, S202, S203, and S204 in the other wear resistance test.

[0077] It should be noted that the number of times the sole of the test shoe is subjected to the wear test, as well as the first duration, second duration, third duration, fourth duration in the wear test, and the initial values ​​and preset values ​​of the pressure values ​​corresponding to the first pressure, second pressure, third pressure and fourth pressure can be adaptively adjusted based on the actual test conditions. In a specific embodiment, the first duration is 0.43s, the second duration is 0.50s, the third duration is 0.43s, the fourth duration is 1.36s, and the initial values ​​of the pressure values ​​corresponding to the first pressure, second pressure, third pressure and fourth pressure are 0. In this way, the friction conditions in the real gait can be better simulated, and the wear resistance of the sole of the test shoe can be further characterized according to the change rate of the overall friction coefficient μ1 of the sole of the test shoe.

[0078] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A sole wear resistance testing device, characterized in that: The shoe fixing assembly comprises a main frame, a horizontal transmission assembly, an inclined transmission assembly, a vertical transmission assembly, a shoe body fixing assembly, and a friction testing platform, wherein the horizontal transmission assembly is linearly connected to the main frame along a first direction, the inclined transmission assembly is rotationally connected to the horizontal transmission assembly around a first direction and a second direction respectively, the vertical transmission assembly is linearly connected to the inclined transmission assembly along a third direction, the shoe body fixing assembly is arranged on the vertical transmission assembly, the friction testing platform is linearly connected to the main frame along the third direction, and the shoe body fixing assembly is spaced apart and located above the friction testing platform; The first direction and the second direction both extend in a horizontal direction and are perpendicular to each other, and the third direction extends in a vertical direction and is perpendicular to the first direction and the second direction; The horizontal transmission assembly includes a horizontal transmission motor, a horizontal transmission screw, a horizontal transmission nut, a horizontal guide slide bar and a horizontal transmission slider. The horizontal transmission motor, the horizontal transmission screw bar and the horizontal guide slide bar are respectively arranged on the main body bracket. The horizontal transmission motor is connected to the horizontal transmission screw bar for rotation around the first direction. The horizontal transmission nut is linearly connected to the horizontal transmission screw bar along the first direction. The horizontal transmission slider is linearly connected to the horizontal guide slide bar along the first direction, and the horizontal transmission nut is fixedly connected to the horizontal transmission slider. The horizontal guide slide bar includes a first guide rod body and a second guide rod body, the first guide rod body and the second guide rod body are arranged at intervals along the second direction on opposite sides of the horizontal transmission screw rod, the horizontal transmission slider includes a horizontal slider body, a first connecting ear and a second connecting ear, the first connecting ear is linearly connected to the first guide rod body along the first direction and fixedly connected to the horizontal slider body, the second connecting ear is linearly connected to the second guide rod body along the first direction and fixedly connected to the horizontal slider body, and the horizontal transmission nut is fixedly connected to the horizontal slider body; The tilt transmission assembly includes a tilt transmission bracket, a front-back tilt unit, and a left-right tilt unit. The front-back tilt unit is provided on the horizontal slider body and is rotatably connected to the tilt transmission bracket around the second direction. The left-right tilt unit is provided on the horizontal slider body and is rotatably connected to the tilt transmission bracket around the first direction. The tilt transmission bracket includes a tilt bracket main body, and the vertical transmission assembly includes a vertical transmission electric cylinder, a vertical guide sleeve and a vertical transmission bracket. The vertical transmission electric cylinder is arranged on the tilt bracket main body and linearly connected to the vertical transmission bracket along the third direction. The vertical guide sleeve is guided and connected between the tilt bracket main body and the vertical transmission bracket along the third direction.

2. The sole wear resistance testing device according to claim 1, characterized in that: The tilt transmission bracket includes a bracket coupling unit, a first coupling slider, and a second coupling slider; the front-back tilt unit includes a first guide tube, a first electric rod, a first coupling unit, a second guide tube, a second electric rod, and a second coupling unit; the left-right tilt unit includes a tilt transmission motor, a movable gear, and a stationary gear; The bracket coupling unit is hinged to the horizontal slider body around the second direction, and the bracket coupling unit is hinged to the tilt bracket body around the first direction. The first guide tube body and the second guide tube body are spaced apart along the first direction on opposite sides of the bracket coupling unit and are respectively fixed on the horizontal slider body. The first electric rod body is linearly connected to the first guide tube body along the third direction. The first coupling unit is hinged to the first electric rod body around the second direction. The first coupling slider is hinged to the first coupling unit around the first direction, and the first coupling slider is adaptively slidably connected to the tilt bracket body. The second electric rod body is linearly connected to the second guide tube body along the third direction. The second coupling unit is hinged to the second electric rod body around the second direction. The second coupling slider is hinged to the second coupling unit around the first direction, and the second coupling slider is adaptively slidably connected to the tilt bracket body. The tilt transmission motor is fixedly provided on the bracket coupling unit and is rotatably connected to the movable gear around the first direction. The stationary gear is fixedly provided on the tilt bracket body, and the movable gear is meshed and connected to the stationary gear around the first direction.

3. The sole wear resistance testing device according to claim 2, characterized in that: The tilt transmission bracket also includes a first connecting shaft and a second connecting shaft. A first limiting groove is provided at the bottom of the horizontal slider body, and the first connecting shaft extends along the second direction and is arranged in the first limiting groove. The upper end of the bracket coupling unit is hinged to the first connecting shaft around the second direction, and the first limiting groove is used to limit the swing stroke of the bracket coupling unit around the second direction. A second limiting groove is provided at the top of the tilt bracket body, and the second connecting shaft extends along the first direction and is arranged in the second limiting groove. The lower end of the bracket coupling unit is hinged to the second connecting shaft around the first direction, and the second limiting groove is used to limit the swing stroke of the tilt bracket body around the first direction.

4. The sole wear resistance testing device according to claim 2, characterized in that: The top of the inclined bracket body is also provided with a first limiting slide groove and a second limiting slide groove. The first limiting slide groove is provided with a first guide slide rail. The first coupling slider is adaptively slidably connected to the first guide slide rail and is limited in the first limiting slide groove. The second limiting slide groove is provided with a second guide slide rail. The second coupling slider is adaptively slidably connected to the second guide slide rail and is limited in the second limiting slide groove.

5. The sole wear resistance testing device according to claim 2, characterized in that: The left and right tilting unit also includes a transmission gear and a constant torque coupling. The transmission gear is arranged on the bracket coupling unit, and the stationary gear is arranged on the tilting bracket body through the constant torque coupling. The movable gear is meshed and connected to the transmission gear around the first direction, and the transmission gear is meshed and connected to the stationary gear around the first direction.

6. The sole wear resistance testing device according to claim 2, characterized in that: The vertical transmission assembly also includes a vertical transmission motor, a vertical transmission worm gear, a vertical guide bearing, a vertical transmission worm gear, a third coupling unit, a fourth coupling unit and a shoe last hanging plate. The vertical transmission motor and the vertical guide bearing are respectively fixedly arranged on the vertical transmission bracket. The vertical transmission motor rotates around the third direction and is connected to the vertical transmission worm gear. The vertical transmission worm gear is linearly connected to the vertical transmission worm gear in the vertical guide bearing along the third direction. The third coupling unit and the fourth coupling unit are arranged at intervals along the first direction. The third coupling unit is fixedly connected to the vertical transmission worm gear. The fourth coupling unit is fixedly connected to the vertical transmission worm gear vertical transmission bracket. The upper part of one end of the shoe last hanging plate extending along the first direction is hinged to the third coupling unit around the second direction, and the upper part of the other end extending along the first direction is hinged to the fourth coupling unit around the second direction.

7. The sole wear resistance testing device according to claim 6, characterized in that: The shoe body fixing assembly includes a connecting column head and a shoe last main body, the connecting column head is fixedly connected to the bottom of the shoe last suspension plate body, the shoe last main body is fixedly connected to one end of the connecting column head facing away from the shoe last suspension plate body, and a first vertical force sensor is provided at the bottom of one end of the shoe last main body extending along the first direction, and a second vertical force sensor is provided at the bottom of the other end extending along the first direction.

8. The sole wear resistance testing device according to claim 7, characterized in that: The friction testing platform includes a friction testing bracket, a friction testing plate, a bracket transmission unit and a bracket guide unit. The bracket transmission unit is arranged on the main bracket and linearly connected to the friction testing bracket along the third direction. The bracket guide unit is guided and connected between the main bracket and the friction testing bracket along the third direction. A plate accommodating groove is provided on the top of the friction testing bracket. The friction testing plate is fixedly arranged in the plate accommodating groove and is spaced below the shoe last main body. A first horizontal force sensor is provided on the side wall of one end of the plate accommodating groove extending along the first direction, and a dust suction interface is also provided on the side wall of the plate accommodating groove.

9. A method for testing the wear resistance of a sole based on the sole wear resistance testing device according to any one of claims 1 to 8, characterized in that: include: Fixing the test shoe body by the shoe body fixing assembly, controlling the vertical transmission assembly and the friction test platform to adjust the sole of the test shoe body to a horizontal state and pre-contact the friction test platform; The sole of the test shoe body is subjected to multiple wear resistance tests, wherein the wear resistance tests include: Controlling the horizontal transmission assembly to drive the test shoe body to move forward along the first direction for a first duration, and controlling the inclined transmission assembly to drive the test shoe body to tilt backward around the second direction to contact the friction test platform for the first duration, and controlling the inclined transmission assembly to drive the test shoe body to tilt leftward or rightward around the first direction to contact the friction test platform for the first duration, and controlling the vertical transmission assembly to apply a first pressure downward to the test shoe body along the third direction during the first duration, wherein the pressure value of the first pressure gradually increases from an initial value to a preset value in synchronization with the first duration; Controlling the horizontal transmission assembly to drive the test shoe body to move forward along the first direction for a second duration, and controlling the inclined transmission assembly to drive the test shoe body to horizontally contact the friction test platform around the second direction for the second duration, and controlling the inclined transmission assembly to drive the test shoe body to tilt leftward or rightward around the first direction to contact the friction test platform for the second duration, and controlling the vertical transmission assembly to apply a second pressure downward to the test shoe body along the third direction during the second duration, wherein the pressure value of the second pressure is synchronized with the second duration and is always maintained at the preset value; Controlling the horizontal transmission assembly to drive the test shoe body to move forward along the first direction for a third time period, and controlling the inclined transmission assembly to drive the test shoe body to tilt forward around the second direction to contact the friction test platform for the third time period, and controlling the inclined transmission assembly to drive the test shoe body to tilt leftward or rightward around the first direction to contact the friction test platform for the third time period, and controlling the vertical transmission assembly to apply a third pressure downward to the test shoe body along the third direction during the third time period, wherein the pressure value of the third pressure gradually decreases from the preset value to the initial value synchronously with the third time period; Control the horizontal transmission assembly to drive the test shoe body to move backward along the first direction for a fourth time period, and at the same time control the inclined transmission assembly to drive the test shoe body to horizontally separate from the friction test platform around the second direction for a fourth time period, and at the same time control the inclined transmission assembly to drive the test shoe body to horizontally separate from the friction test platform around the first direction for a fourth time period, and at the same time control the vertical transmission assembly to apply a fourth pressure downward to the test shoe body along the third direction during the fourth time period, wherein the pressure value of the fourth pressure is synchronized with the fourth time period and always remains at the initial value.

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