Hub of non-pneumatic tire and vehicle

Abstract

The utility model discloses a hub of a non-pneumatic tire and a vehicle, and relates to the technical field of vehicles, the hub of the non-pneumatic tire is mounted on a rotating shaft of the vehicle, a spoke assembly is connected to the peripheral side of the hub, the hub comprises a mounting main body and an assembly ring, and the mounting main body is fixedly connected to the rotating shaft; the assembly ring is fixedly connected to the peripheral side of the mounting main body; at least one protruding structure is arranged on the outer circumferential face of the assembling ring, the connecting positions of the protruding structures and the spoke assemblies are partially arranged in a staggered mode, groove structures matched with the protruding structures are arranged on the inner circumferential face of each spoke assembly, and the number of the protruding structures is the same as that of the groove structures, and the protruding structures and the groove structures correspond to each other in a one-to-one mode. The spoke assembly can be conveniently installed, and the spoke assembly is not prone to being disengaged from the hub.

Description

Technical Field

[0001] The present application relates to the technical field of vehicles, and in particular to a wheel hub with a non-pneumatic tire and a vehicle. Background Art

[0002] In the related technical field, non-pneumatic tires abandon the compressed air as an important component of pneumatic tires and replace it with a design that integrates the tire and the rim. The rim and elastic spokes of non-pneumatic tires can reduce vibrations by deformation and can rebound very easily to absorb energy from ground bumps.

[0003] Since there is no need to inflate like traditional tires, and there are no rims like traditional tires, non-pneumatic tires are maintenance-free, explosion-proof, and leak-proof compared to ordinary tires. In addition, when non-pneumatic tires are subjected to longitudinal impact loads, their internal support structure can have a much larger deformation than ordinary pneumatic tires, thereby reducing the road impact transmitted from the rough road surface to the suspension and body through the tires, and improving the comfort performance of the vehicle.

[0004] However, the existing non-pneumatic tire has a complex structure, and the combination stability of the spoke assembly and the wheel hub is poor, and the spoke assembly is prone to accidentally detach from the wheel hub. Utility Model Content

[0005] The embodiments of the present application provide a wheel hub and a vehicle with a non-pneumatic tire, which can facilitate the installation of a spoke assembly and make it difficult for the spoke assembly to separate from the wheel hub.

[0006] In a first aspect, an embodiment of the present application provides a wheel hub of a non-pneumatic tire, which is mounted on a rotating shaft of a vehicle, wherein a spoke assembly is connected to the outer peripheral side of the wheel hub, and the wheel hub comprises a mounting body and an assembly ring, wherein the mounting body is fixedly connected to the rotating shaft; and the assembly ring is fixedly connected to the outer peripheral side of the mounting body;

[0007] At least one protrusion structure is arranged on the outer circumferential surface of the assembly ring, and the protrusion structure and the connecting position part of the spoke assembly are staggered. The inner circumferential surface of the spoke assembly is provided with a groove structure adapted to the protrusion structure, and the protrusion structure and the groove structure are the same in number and correspond one to one.

[0008] Based on the above-mentioned examples of the present application, by providing a protrusion structure and a groove structure, the installation stability of the hub and the spoke assembly is improved, so that when installing the spoke assembly, the second connecting member on the spoke assembly can be connected to the first connecting member on the assembly ring, which facilitates the installation of the spoke assembly and makes it difficult for the spoke assembly to separate from the hub.

[0009] It should be noted that the first connecting member may be a protruding structure, and the second connecting member may be a groove structure. Of course, the first connecting member may be a groove structure, and the second connecting member may be a protruding structure. This is not limited in the embodiments of the present application. The protruding structure may be a boss, a bump, or the like.

[0010] The protrusion structure corresponding to the first connector can be set as a complete annular protrusion structure around a heat exchange assembly circle, or the first connector can be set as a combination structure of multiple protrusion structures arranged in a preset shape as needed, and the arrangement of the multiple protrusion structures can be arranged in an annular array. The shape of the second connector is adapted to the shape of the first connector, and after the shape of the first connector changes, the shape of the second connector changes adaptively.

[0011] In some examples, the protruding structure is constructed on the outer circumferential surface of the assembly ring by stamping.

[0012] Based on the above examples of the present application, the stamping method can simplify the process, reduce the processing cost of the assembly ring, and thus reduce the production cost of the entire wheel hub. The convex structure can be processed on the assembly ring by stamping, which is an integrated molding method. In addition, the convex structure can also increase the rigidity of the assembly ring, improve the supporting stability of the assembly ring, and achieve the beneficial effect of reducing costs and increasing efficiency of the wheel hub.

[0013] In some examples, the protruding structure is fixedly connected to the outer peripheral surface of the assembly ring, and the protruding structure and the assembly ring are fixed by at least one of welding, threaded connection, and fixing piece connection.

[0014] Based on the above examples of the present application, the raised structure can also be set separately from the assembly ring and fixed in a certain way. Specifically, it can be fixed by welding, threaded connection, fixing piece connection, etc. When the raised structure is welded to the assembly ring, welding can be performed at the connection position between the raised structure and the assembly ring. The specific welding method can be set as needed, which can be gas welding, resistance welding, arc welding, etc. At this time, the raised structure can be an annular raised structure, or multiple raised structures can be set and arranged according to a certain rule. When the raised structure is threadedly connected to the assembly ring, a corresponding number of through holes or threaded holes are opened on the assembly ring, and then the installation of the raised structure is realized by the threaded connection between the raised structure and the assembly ring. The raised structure can be more stably installed on the assembly ring through the threaded connection. At this time, there are multiple raised structures, and they are arranged according to a certain rule. When the raised structure and the assembly ring are connected with a fixing part, a corresponding number of through holes or threaded holes are provided on the raised structure and the assembly ring, and then the raised structure and the assembly ring are connected together by fixing the fixing part. The fixing part can be a bolt, a pin or other structure. At this time, the raised structure can be an annular raised structure, or multiple raised structures can be provided and arranged according to a certain pattern.

[0015] In some examples, the protrusion structure is an annular ridge disposed around the assembly ring.

[0016] Based on the above examples of the present application, the annular ridge has a simpler processing technology and is easier to process and form, which can simplify the process, reduce the processing cost of the assembly ring, and thus reduce the production cost of the entire wheel hub.

[0017] In some examples, two annular ridges spaced apart from each other are disposed on the outer circumferential surface of the assembly ring.

[0018] Based on the above examples of the present application, the two annular ridges have higher connection stability, so that the connection stability between the assembly ring and the spoke assembly is higher.

[0019] The two annular ridges include a first annular ridge and a second annular ridge, wherein the first annular ridge is arranged at a position close to the outside of the non-pneumatic tire, and the second annular ridge can be arranged at a position close to the inside of the non-pneumatic tire. Such an arrangement can prevent the spoke assembly from being easily deviated toward the inside of the vehicle or the outside of the vehicle relative to the wheel hub during the driving of the vehicle, thereby further providing connection stability between the assembly ring and the spoke assembly.

[0020] In some examples, the cross-sectional line shape of the outer peripheral surface of the annular convex ridge is one of an arc line, a wavy line, a sawtooth line, a broken line formed by splicing at least two straight lines, or a combination of at least two of them.

[0021] Based on the above examples of the present application, the main action position of the annular ridge is actually the outer surface where the annular ridge contacts the spoke assembly, and the cross-sectional line shape of the outer peripheral surface of the annular ridge will represent the contact mode between the annular ridge and the spoke assembly. The cross-sectional line shape can specifically be one of an arc line, a wavy line, a serrated line, a broken line formed by splicing at least two straight lines, or a combination of at least two of them. The drawings in the present application are illustrated by using arc line examples, and the cross-sectional line shape can also be set to other shapes, such as a wavy line, a serrated line, a broken line formed by splicing at least two straight lines, etc.

[0022] In some examples, the protrusion structure is a plurality of sub-protrusions arranged in an annular array around the outer circumference of the assembly ring.

[0023] Based on the above examples of the present application, multiple sub-protrusions can be arranged in an array, which can increase the contact area between the assembly ring and the spoke assembly, thereby increasing the bonding strength between the assembly ring and the spoke assembly, and reducing the possibility of the spoke assembly accidentally detaching from the assembly ring. The array of multiple sub-protrusions can be a uniform array, and the spacing between two adjacent sub-protrusions is equal. The spacing between multiple sub-protrusions can also be set to be different as needed, as long as the connection stability of the assembly ring and the spoke assembly can be provided.

[0024] In some examples, the plurality of sub-protrusions include at least one of ridges, bosses, arc-shaped protrusions, annular protrusions, and irregular-shaped protrusions.

[0025] Based on the above examples of the present application, the shape of the sub-protrusion can be set as needed, not limited to the above-mentioned ones. The sub-protrusion can be a columnar structure, such as a prism, a cylinder, etc., and the sub-protrusion can also be a table-shaped structure, such as a truncated cone, a prism, etc. Or the sub-protrusion can be set as an arc-shaped protrusion, an annular protrusion, a special-shaped protrusion, etc. as needed. A plurality of sub-protrusions are provided on the outer circumference of the assembly ring, and the shapes of the sub-protrusions can all be the same, or the shapes of some sub-protrusions can be set differently as needed, and the specific selection is based on actual needs.

[0026] In some examples, the spoke assembly includes: an inner ring structure, which is welded to the outer circumference of the assembly ring, and the groove structure is formed on the inner circumference of the inner ring structure during the welding process; a plurality of spoke units, and the first end of the spoke unit is connected to the outer circumference of the inner ring structure; an outer ring structure, which is arranged on the outer circumference of the inner ring structure, and the inner circumference of the outer ring structure is connected to the second end of the spoke unit; the spoke unit includes at least two bent portions, some of which have different bending directions, and at least two of the bent portions are connected in sequence along the head-to-tail direction of the spoke unit.

[0027] Based on the above examples of the present application, the inner ring structure can be effectively connected to the first end of the spoke unit, and the first ends of the multiple spoke units are all connected to the outer circumference of the inner ring structure, so that the first ends of all the spoke units can be formed into a whole, which is convenient for the entire spoke assembly to be connected to the wheel hub. The outer ring structure can be effectively connected to the second end of the spoke unit, and the second ends of the multiple spoke units are all connected to the inner circumference of the outer ring structure, so that the second ends of all the spoke units can be formed into a whole, which is convenient for the second end of the entire spoke assembly to be connected to the corresponding tread. The spoke assembly of the present application mainly bears the gravity of the vehicle through tension, that is, when a vehicle equipped with a non-pneumatic tire is moving, the load of gravity is basically borne by the spoke units in the upper half area, and the gravity is applied to the tread through the spoke units in the upper half area, that is, the non-pneumatic tire of the present application is a top load-bearing tire.

[0028] A spoke unit with at least two bends can allow the spoke unit to have a certain range of elastic deformation before being stretched to bear a load, and can restore its original shape when the spoke unit no longer bears the load. Some of the bends have different bending directions, which can have a higher elastic deformation capacity in a smaller space area. The degree of bending of the first bend is greater than that of the second bend. Under the same material, the load-bearing capacity of the first bend is stronger than that of the second bend. Specifically, due to the large degree of bending of the first bend, more external force is required from bending to straightening, and more elastic preload is generated during this period, which can offset more external stress and increase the load-bearing capacity of the first bend.

[0029] When the radial length of the first curved portion along the non-pneumatic tire is smaller than the radial length of the second curved portion along the non-pneumatic tire, the space occupied by the first curved portion can be reduced, the dispersion of the corresponding elastic preload force can be reduced, and the external stress can be better balanced. The length ratio between the radial length of the first curved portion and the radial length of the second curved portion is adaptively adjusted according to the results of the force analysis.

[0030] The embodiments of the present application can achieve a simpler structure of the spoke assembly and a stronger load-bearing capacity, and each spoke unit has a stronger load-bearing capacity.

[0031] In the second aspect, an embodiment of the present application provides a vehicle, including a body, a hub of the above-mentioned non-pneumatic tire, a spoke assembly and a tread, a rotating shaft is arranged at the bottom of the body; the hub is mounted on the rotating shaft; the spoke assembly is fixedly mounted on the outer peripheral side of the hub; and the tread is fixedly mounted on the outer peripheral side of the spoke assembly.

[0032] Based on the above examples of the present application, the vehicle with the above wheel hub can improve the connection stability between the wheel hub and the assembly in the figure, so that the spoke assembly is not easy to separate from the wheel hub. Specifically, by providing a protrusion structure and a groove structure, the installation stability of the wheel hub and the spoke assembly is improved, so that when installing the spoke assembly, the second connecting piece on the spoke assembly can be connected to the first connecting piece on the assembly ring, which facilitates the installation of the spoke assembly and makes it difficult for the spoke assembly to separate from the wheel hub. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0034] Figure 1 This is a schematic structural diagram of a non-pneumatic tire with a hub in one embodiment of the present application;

[0035] Figure 2 It is a front structural schematic diagram of a non-pneumatic tire with a hub in one embodiment of the present application;

[0036] Figure 3 It is a schematic diagram of the structure explosion of a non-pneumatic tire with a hub in one embodiment of the present application;

[0037] Figure 4 This is a schematic diagram of the structure of a wheel hub in one embodiment of the present application;

[0038] Figure 5 This is a schematic structural diagram of a spoke assembly in one embodiment of the present application;

[0039] Figure 6 It is a schematic diagram of the front structure of the spoke assembly in one embodiment of the present application.

[0040] Reference numerals:

[0041] 100, wheel hub; 110, mounting body; 120, assembly ring; 121, first connecting member; 200, spoke assembly; 210, inner ring structure; 220, spoke unit; 221, first curved portion; 222, second curved portion; 230, outer ring structure; 300, tread. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0043] To solve the above technical problems, please refer to Figure 1-Figure 6 As shown, the first aspect of the present application provides a non-pneumatic tire hub, which can facilitate the installation of the spoke assembly 200 and make the spoke assembly 200 and the hub 100 not easily separated.

[0044] Reference Figure 1-Figure 6 As shown, in some examples of the present application, a wheel hub 100 of a non-pneumatic tire is installed on a rotating shaft of a vehicle, a spoke assembly 200 is connected to the outer peripheral side of the wheel hub 100, and the wheel hub 100 includes a mounting body 110 and an assembly ring 120, wherein the mounting body 110 is fixedly connected to the rotating shaft; and the assembly ring 120 is fixedly connected to the outer peripheral side of the mounting body 110;

[0045] At least one protrusion structure is arranged on the outer circumferential surface of the assembly ring 120, and the protrusion structure is staggered with the connection position part of the spoke assembly 200. The inner circumferential surface of the spoke assembly 200 is provided with a groove structure adapted to the protrusion structure, and the number of the protrusion structure and the groove structure are the same and correspond one to one.

[0046] Based on the above-mentioned example of the present application, by providing a protrusion structure and a groove structure, the installation stability of the wheel hub 100 and the spoke assembly 200 is improved, so that when installing the spoke assembly 200, the second connecting member on the spoke assembly 200 can be connected to the first connecting member 121 on the assembly ring 120, and the installation of the spoke assembly 200 is facilitated, and the spoke assembly 200 and the wheel hub 100 are not easily separated.

[0047] It should be noted that the first connecting member 121 may be a protruding structure, and the second connecting member may be a groove structure. Of course, the first connecting member 121 may be a groove structure, and the second connecting member may be a protruding structure. This is not limited in the present embodiment of the application. The protruding structure may be a boss, a bump, or the like.

[0048] The protrusion structure corresponding to the first connector 121 can be set as a complete annular protrusion structure around the heat exchange assembly ring 120, or the first connector 121 can be set as a combination structure of multiple protrusion structures arranged in a preset shape as needed, and the arrangement of the multiple protrusion structures can be arranged in an annular array. The shape of the second connector is adapted to the shape of the first connector 121, and after the shape of the first connector 121 changes, the shape of the second connector changes adaptively.

[0049] In addition, the number of the first connector 121 and the second connector can be set according to actual needs. Taking the annular protrusion structure as an example, the number of the first connector 121 can be set to at least two. The drawings of the present application take two annular protrusion structures arranged at intervals as an example for exemplary description. The first connector 121 is set as a combination structure in which multiple protrusion structures are arranged in a preset shape. For example, the number of the first connector 121 is 60, and the number of the second connector is 60. For another example, the number of the first connector 121 is 70, and the number of the second connector is 70. In this regard, the embodiments of the present application are not limited here.

[0050] Reference Figure 1-Figure 6 As shown, in some examples, the protruding structure is constructed on the outer circumferential surface of the assembly ring 120 by stamping.

[0051] Based on the above examples of the present application, the stamping method can simplify the process, reduce the processing cost of the assembly ring 120, and further reduce the production cost of the entire wheel hub 100. The convex structure can be processed on the assembly ring 120 by the one-piece molding method of stamping. In addition, the convex structure can also increase the rigidity of the assembly ring 120, improve the supporting stability of the assembly ring 120, and achieve the beneficial effect of reducing costs and increasing efficiency of the wheel hub 100.

[0052] The raised structure can also be integrally formed or fixed twice by powder metallurgy, three-dimensional printing, welding, connection with fixing parts, etc. The appropriate processing method is selected according to actual needs, and there is no restriction here.

[0053] In some examples, the protruding structure is fixedly connected to the outer circumferential surface of the assembly ring 120 , and the protruding structure and the assembly ring 120 are fixed by at least one of welding, threaded connection, and fastener connection.

[0054] Based on the above examples of the present application, the raised structure can also be set separately from the assembly ring 120 and fixed in a certain way. Specifically, it can be fixed by welding, threaded connection, fixing piece connection, etc. When the raised structure is welded to the assembly ring 120, welding can be performed at the connection position between the raised structure and the assembly ring 120. The specific welding method can be set as needed, which can be gas welding, resistance welding, arc welding, etc. The raised structure at this time can be an annular raised structure, or multiple raised structures can be set and arranged according to a certain rule. When the raised structure is threadedly connected to the assembly ring 120, a corresponding number of through holes or threaded holes are opened on the assembly ring 120, and then the installation of the raised structure is realized by the threaded connection between the raised structure and the assembly ring 120. The raised structure can be more stably installed on the assembly ring 120 through the threaded connection. At this time, there are multiple raised structures, and they are arranged according to a certain rule. When the protruding structure is connected to the assembly ring 120 by a fixing part, a corresponding number of through holes or threaded holes are provided on the protruding structure and the assembly ring 120, and then the protruding structure is connected to the assembly ring 120 by fixing the fixing part. The fixing part can be a bolt, a pin or other structure. At this time, the protruding structure can be an annular protruding structure, or a plurality of protruding structures can be provided and arranged according to a certain pattern.

[0055] Reference Figure 1-Figure 6 As shown, in some examples, the protrusion structure is an annular ridge arranged around the assembly ring 120 .

[0056] Based on the above examples of the present application, the annular ridge has a simpler processing technology and is easier to process and shape, which can simplify the process, reduce the processing cost of the assembly ring 120, and further reduce the production cost of the entire wheel hub 100.

[0057] The cross-sectional shape of the annular ridge can be "U", "T", "V", "Z", "3", "8", etc., and the cross-sectional shape of the annular ridge can also be set to an arc-shaped protrusion, a square protrusion, a wavy protrusion, a serrated protrusion, etc. The cross-sectional shape of the annular ridge of the present application is not limited to the above-mentioned shapes.

[0058] In some examples, two annular ridges spaced apart from each other are disposed on the outer circumferential surface of the assembly ring 120 .

[0059] Based on the above examples of the present application, the two annular ridges have higher connection stability, so that the connection stability between the assembly ring 120 and the spoke assembly 200 is higher.

[0060] The two annular ridges include a first annular ridge and a second annular ridge, wherein the first annular ridge is arranged at a position close to the outside of the non-pneumatic tire, and the second annular ridge can be arranged at a position close to the inside of the non-pneumatic tire. Such an arrangement can prevent the spoke assembly 200 from being easily deviated toward the inside of the vehicle or the outside of the vehicle relative to the wheel hub 100 during the driving of the vehicle, thereby further providing connection stability between the assembly ring 120 and the spoke assembly 200.

[0061] A greater number of annular ridges may also be provided between the first annular ridge and the second annular ridge to further improve the connection stability between the assembly ring 120 and the spoke assembly 200 .

[0062] The inner side and outer side mentioned above refer to the inner side and outer side of the non-pneumatic tire after the non-pneumatic tire is installed on the corresponding vehicle, and the inner side mainly refers to the side of the non-pneumatic tire facing the middle position of the vehicle.

[0063] Reference Figure 1-Figure 6 As shown, in some examples, the cross-sectional line shape of the outer peripheral surface of the annular convex ridge is one of an arc line, a wavy line, a sawtooth line, a broken line formed by splicing at least two straight lines, or a combination of at least two of them.

[0064] Based on the above examples of the present application, the main action position of the annular ridge is actually the outer surface of the annular ridge in contact with the spoke assembly 200, and the cross-sectional line shape of the outer peripheral surface of the annular ridge will represent the contact mode between the annular ridge and the spoke assembly 200. The cross-sectional line shape can be one of an arc line, a wavy line, a sawtooth line, a broken line formed by splicing at least two straight lines, or a combination of at least two of them. The drawings in the present application are illustrated by using arc lines as examples, and the cross-sectional line shape can also be set to other shapes, such as a wavy line, a sawtooth line, a broken line formed by splicing at least two straight lines, etc.

[0065] The provision of the annular ridge can increase the contact area between the assembly ring 120 and the spoke assembly 200 , thereby improving the bonding strength between the assembly ring 120 and the spoke assembly 200 and reducing the possibility of the spoke assembly 200 accidentally detaching from the assembly ring 120 .

[0066] In some examples, the protrusion structure is a plurality of sub-protrusions arranged in an annular array around the outer circumference of the assembly ring 120 .

[0067] Based on the above examples of the present application, multiple sub-protrusions can be arranged in an array, which can increase the contact area between the assembly ring 120 and the spoke assembly 200, thereby improving the bonding strength between the assembly ring 120 and the spoke assembly 200, and reducing the possibility of the spoke assembly 200 accidentally detaching from the assembly ring 120. The array of multiple sub-protrusions can be a uniform array, and the spacing between two adjacent sub-protrusions is equal. The spacing of the multiple sub-protrusions can also be set to be different as needed, as long as the connection stability of the assembly ring 120 and the spoke assembly 200 can be provided.

[0068] The plurality of sub-protrusions may be arranged in a circular array around the assembly ring 120, or an area may be selected on the outer circumference of the assembly ring 120 and the plurality of group protrusions may be arranged in a local array in the corresponding area.

[0069] In some examples, the plurality of sub-protrusions include at least one of ridges, bosses, arc-shaped protrusions, annular protrusions, and irregular-shaped protrusions.

[0070] Based on the above examples of the present application, the shape of the sub-protrusion can be set as needed, not limited to the above-mentioned ones. The sub-protrusion can be a columnar structure, such as a prism, a cylinder, etc., and the sub-protrusion can also be a table-shaped structure, such as a truncated cone, a prism, etc. Or the sub-protrusion can be set as an arc-shaped protrusion, an annular protrusion, a special-shaped protrusion, etc. as needed. A plurality of sub-protrusions are provided on the outer peripheral surface of the assembly ring 120, and the shapes of the sub-protrusions can all be the same, or the shapes of some sub-protrusions can be set differently as needed, and the specific selection is based on actual needs.

[0071] In some examples, the spoke assembly 200 includes: an inner ring structure 210, which is welded to the outer circumference of the assembly ring 120, and the groove structure is formed on the inner circumference of the inner ring structure 210 during the welding process; a plurality of spoke units 220, and the first end of the spoke unit 220 is connected to the outer circumference of the inner ring structure 210; an outer ring structure 230, which is arranged on the outer circumference of the inner ring structure 210, and the inner circumference of the outer ring structure 230 is connected to the second end of the spoke unit 220; the spoke unit 220 includes at least two bent portions, some of which have different bending directions, and at least two of the bent portions are connected in sequence along the head-to-tail direction of the spoke unit 220.

[0072] Based on the above examples of the present application, the inner ring structure 210 can effectively connect the first end of the spoke unit 220, and the first ends of the multiple spoke units 220 are all connected to the outer circumference of the inner ring structure 210, so that the first ends of all the spoke units 220 can be formed into a whole, which is convenient for the entire spoke assembly 200 to be connected to the wheel hub 100. The outer ring structure 230 can effectively connect the second end of the spoke unit 220, and the second ends of the multiple spoke units 220 are all connected to the inner circumference of the outer ring structure 230, so that the second ends of all the spoke units 220 can be formed into a whole, which is convenient for the second end of the entire spoke assembly 200 to be connected to the corresponding tread 300. The spoke assembly 200 of the present application mainly bears the gravity of the vehicle through tension, that is, when the vehicle equipped with the non-pneumatic tire is running, the gravity load is basically borne by the spoke unit 220 in the upper half area, and the gravity acts on the tread 300 through the spoke unit 220 in the upper half area, that is, the non-pneumatic tire of the present application is a top load-bearing tire.

[0073] The spoke unit 220 having at least two bends can allow the spoke unit 220 to have a certain elastic deformation range before being stretched to bear a load, and can restore the original shape when the spoke unit 220 no longer bears the load. The bending directions of some of the bends are different, so that a higher elastic deformation capacity can be achieved in a smaller space area. The degree of bending of the first bend 221 is greater than that of the second bend 222. Under the same material, the load-bearing capacity of the first bend 221 is stronger than that of the second bend 222. Specifically, due to the large degree of bending of the first bend 221, more external force is required from bending to straightening, and more elastic preload is generated during this period, which can offset more external stress and increase the load-bearing capacity of the first bend 221.

[0074] When the radial length of the first curved portion 221 along the non-pneumatic tire is smaller than the radial length of the second curved portion 222 along the non-pneumatic tire, the space occupied by the first curved portion 221 can be reduced, and the dispersion of the corresponding elastic preload force can be reduced, which can be used to better balance the external stress. The length ratio between the radial length of the first curved portion 221 and the radial length of the second curved portion 222 is adaptively adjusted according to the results of the force analysis.

[0075] The embodiments of the present application can achieve a simpler structure of the spoke assembly 200 and a stronger load-bearing capacity, and each spoke unit 220 has a stronger load-bearing capacity.

[0076] A targeted professional stress analysis can be performed on the spoke unit 220, wherein the first curved portion 221 is close to the inner ring structure 210 with a smaller diameter, corresponding to a denser arrangement of the plurality of first curved portions 221, and the external stress received by each first curved portion 221 will be relatively more and more concentrated. Correspondingly, the second curved portion 222 is close to the outer ring structure 230 with a larger diameter, corresponding to a sparser arrangement of the plurality of second curved portions 222, and the external stress received by each first curved portion 221 will be relatively less and more dispersed, and part of the external stress will be transmitted to the tread 300.

[0077] The tread 300 can be installed on the spoke assembly 200 of the present application. The tread 300 includes a rigid frame structure and a flexible anti-skid structure. The cooperation between the tread 300 and the spoke assembly 200 can make the gravity load basically borne on the spoke unit 220 in the upper half area. That is to say, the load-bearing method of the spoke unit 220 of the present application is achieved by stretching the spoke unit 220. The spoke unit 220 is more of a flexible structure and cannot generate sufficient supporting force. The spoke unit 220 will not use its supporting force to bear the load.

[0078] The following dimensions are used to illustrate a design method of the spoke assembly 200 of the non-pneumatic tire of the present application. The following dimensions are only a simple example and do not mean that the non-pneumatic tire of the present application can only adopt these dimensions. Specifically:

[0079] The inner diameter of the inner ring structure 210 may be 313 mm ± 10 mm, the outer diameter of the inner ring structure 210 may be 317 mm ± 10 mm, the width of the inner ring structure 210 may be 140 mm ± 10 mm, and the thickness of the inner ring structure 210 may be 4 mm ± 1 mm. The inner diameter of the outer ring structure 230 may be 445 mm ± 10 mm, the outer diameter of the outer ring structure 230 may be 448 mm ± 10 mm, the width of the outer ring structure 230 may be 145 mm ± 10 mm, and the thickness of the outer ring structure 230 may be 3 mm ± 1 mm. The spacing between the inner ring structure 210 and the outer ring structure 230 is 128 mm ± 10 mm, and the width difference between the inner ring structure 210 and the outer ring structure 230 is 5 mm ± 1 mm. The above dimensions are the dimensions of the inner ring structure 210 and the outer ring structure 230 before the force changes.

[0080] In the second aspect, an embodiment of the present application provides a vehicle, including a vehicle body, the above-mentioned non-pneumatic tire hub 100, a spoke assembly 200 and a tread 300, a rotating shaft is arranged at the bottom of the vehicle body; the hub 100 is mounted on the rotating shaft; the spoke assembly 200 is fixedly mounted on the outer peripheral side of the hub 100; and the tread 300 is fixedly mounted on the outer peripheral side of the spoke assembly 200.

[0081] Based on the above examples of the present application, the vehicle having the above wheel hub 100 can improve the connection stability between the wheel hub 100 and the assembly in the figure, so that the spoke assembly 200 is not easily separated from the wheel hub 100. Specifically, by providing the protrusion structure and the groove structure, the installation stability of the wheel hub 100 and the spoke assembly 200 is improved, so that when the spoke assembly 200 is installed, the second connecting member on the spoke assembly 200 can be connected to the first connecting member 121 on the assembly ring 120, and the installation of the spoke assembly 200 is convenient, and the spoke assembly 200 is not easily separated from the wheel hub 100.

[0082] It should be noted that the first connecting member 121 may be a protruding structure, and the second connecting member may be a groove structure. Of course, the first connecting member 121 may be a groove structure, and the second connecting member may be a protruding structure. This is not limited in the present embodiment of the application. The protruding structure may be a boss, a bump, or the like.

[0083] The protrusion structure corresponding to the first connector 121 can be set as a complete annular protrusion structure around the heat exchange assembly ring 120, or the first connector 121 can be set as a combination structure of multiple protrusion structures arranged in a preset shape as needed, and the arrangement of the multiple protrusion structures can be arranged in an annular array. The shape of the second connector is adapted to the shape of the first connector 121, and after the shape of the first connector 121 changes, the shape of the second connector changes adaptively.

[0084] In addition, the number of the first connector 121 and the second connector can be set according to actual needs. Taking the annular protrusion structure as an example, the number of the first connector 121 can be set to at least two. The drawings of the present application take two annular protrusion structures arranged at intervals as an example for exemplary description. The first connector 121 is set as a combination structure in which multiple protrusion structures are arranged in a preset shape. For example, the number of the first connector 121 is 60, and the number of the second connector is 60. For another example, the number of the first connector 121 is 70, and the number of the second connector is 70. In this regard, the embodiments of the present application are not limited here.

[0085] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of this application, it should be understood that if the terms "upper", "lower", "left", "right", etc. indicate an orientation or position relationship based on the orientation or position relationship shown in the drawings, it is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0086] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A wheel hub of a non-pneumatic tire, characterized in that: Installed on the rotating shaft of the vehicle, the outer peripheral side of the wheel hub is connected with a spoke assembly, and the wheel hub includes: A mounting body fixedly connected to the rotating shaft; An assembly ring, fixedly connected to the outer peripheral side of the installation body; At least one first connecting member is arranged on the outer circumferential surface of the assembly ring, and the connecting position part of the first connecting member and the spoke assembly is staggered. A second connecting member adapted to the first connecting member is arranged on the inner circumferential surface of the spoke assembly. The first connecting member and the second connecting member are the same in number and correspond one to one. One of the first connecting member and the second connecting member is a protrusion structure, and the other is a groove structure.

2. The non-pneumatic tire hub according to claim 1, characterized in that: The protruding structure is constructed on the outer peripheral surface of the assembly ring by stamping.

3. The non-pneumatic tire hub according to claim 1, characterized in that: The protruding structure is fixedly connected to the outer peripheral surface of the assembly ring, and the protruding structure and the assembly ring are fixed by at least one of welding, threaded connection, and fixing piece connection.

4. The non-pneumatic tire hub according to any one of claims 1 to 3, characterized in that: The protruding structure is an annular convex ridge arranged around the assembly ring.

5. The non-pneumatic tire hub according to claim 4, characterized in that: The outer peripheral surface of the assembly ring is provided with two annular convex ridges spaced apart from each other.

6. The wheel hub of the non-pneumatic tire according to claim 5, characterized in that: The cross-sectional line shape of the outer peripheral surface of the annular convex ridge is one of an arc line, a wavy line, a sawtooth line, a broken line formed by splicing at least two straight lines, or a combination of at least two of them.

7. The non-pneumatic tire hub according to any one of claims 1 to 3, characterized in that: The protrusion structure is a plurality of sub-protrusions arranged in an annular array around the outer circumference of the assembly ring.

8. The non-pneumatic tire hub according to claim 7, characterized in that: The plurality of sub-protrusions include at least one of ridges, bosses, arc-shaped protrusions, annular protrusions, and irregular-shaped protrusions.

9. The non-pneumatic tire hub according to claim 1, characterized in that: The spoke assembly comprises: An inner ring structure is welded to the outer peripheral surface of the assembly ring, and the groove structure is formed on the inner peripheral surface of the inner ring structure during the welding process; A plurality of spoke units, wherein a first end of each spoke unit is connected to an outer peripheral surface of the inner ring structure; An outer ring structure is provided on the outer circumference of the inner ring structure, and the inner circumference of the outer ring structure is connected to the second end of the spoke unit; The spoke unit includes at least two bent portions, some of the bent portions have different bending directions, and at least two of the bent portions are sequentially connected along the head-to-tail direction of the spoke unit.

10. A vehicle, characterized in that: include: The vehicle body has a rotating shaft at the bottom; The hub of the non-pneumatic tire according to any one of claims 1 to 9, mounted on the rotating shaft; A spoke assembly, fixedly mounted on the outer peripheral side of the hub; and, The tread is fixedly mounted on the outer circumference of the spoke assembly.

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