A tire frame structure with variable diameter and tire manufacturing process

Abstract

The present invention discloses a variable-diameter tire frame structure and tire manufacturing process. The tire frame structure includes a pressure ring and a mounting ring, both configured as variable-diameter structures; multiple sidewall support structures connected between the pressure ring and the mounting ring; the tire frame structure changes the length of the sidewall support structures and the diameters of the pressure ring and the mounting ring by changing the relative angles of prefabricated sheets; and the tire frame structure adjusts the pressure-bearing strength of the pressure ring, mounting ring, and sidewall frame structure by adjusting the arrangement density of the prefabricated sheets. The tire frame structure and manufacturing process provided by the present invention simplify the tire frame manufacturing process, simplifying the complex frame manufacturing process to simple prefabricated parts production and subsequent assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of tire manufacturing, and in particular to a tire frame structure with a variable diameter and a tire manufacturing process. Background Art

[0002] Currently, all-steel radial truck and bus tires were primarily introduced by Michelin in the 1950s. The structure of an all-steel radial tire includes the tread, base rubber, belt, carcass, soft gussets, hard gussets, bead wear-resistant rubber, sidewall rubber, inner liner, and transition layer. After nearly 70 years of development, all-steel radial rubber tires have demonstrated significant advantages in performance and fuel efficiency, and are now widely adopted worldwide.

[0003] The all-steel radial tire process has been in use for nearly 70 years. This process requires extremely strict control of technical indicators in actual production, otherwise various tire defects may occur. Although it cannot fundamentally solve the problem, the radial structure has gradually adapted to the production process of tires made of viscous rubber over a long period of development.

[0004] With the development of technology, liquid raw materials can be used in tire production, simplifying the entire tire manufacturing process. Liquid raw materials have obvious advantages in terms of fluidity, permeability, adhesion, and bonding strength. However, in recent years, the specifications and types of tires used in actual applications have become increasingly diverse, requiring the carcass of each different specification and type to be individually designed and manufactured.

[0005] Therefore, based on the above technical problems, technicians in this field urgently need to develop a tire frame structure with a variable diameter and a tire manufacturing process. Summary of the Invention

[0006] The purpose of the present invention is to provide a variable diameter tire frame structure and a tire manufacturing process. The variable diameter tire frame structure improves the versatility of the frame and can realize the prefabrication of frame parts. The tire manufacturing process based on the tire frame structure simplifies the manufacturing process, simplifies the complex frame production into simple prefabricated parts production and then assembly, reduces costs, and reduces dependence on the supply chain.

[0007] In order to achieve the above object, the present invention provides the following technical solutions:

[0008] A tire frame structure with a variable diameter according to the present invention comprises:

[0009] A pressure ring and a mounting ring, wherein the pressure ring and the mounting ring are both configured as a variable diameter structure;

[0010] a plurality of sidewall support structures connected between the pressure ring and the mounting ring;

[0011] The pressure ring, the mounting ring, and the sidewall support structure are all assembled from prefabricated parts, and elastic limiting columns are connected to the end positions of the prefabricated parts of the pressure ring and the mounting ring;

[0012] The prefabricated parts are prefabricated sheets arranged crosswise and capable of adjusting relative angles through hinges at connecting parts;

[0013] The tire frame structure changes the length of the sidewall support structure and the diameters of the pressure ring and the mounting ring by changing the relative angles of the prefabricated sheets;

[0014] The tire frame structure adjusts the pressure-bearing strength of the pressure-bearing ring, the mounting ring, and the sidewall frame structure by adjusting the arrangement density of the prefabricated sheets.

[0015] Furthermore, the tire frame structure is made of at least one of a polymer material, a metal material, and a carbon fiber material.

[0016] Furthermore, the prefabricated sheet is in the shape of a sheet or a rod;

[0017] The prefabricated pieces are provided with mounting holes at positions near the ends and at the middle thereof, and two adjacent and cross-arranged prefabricated pieces are hingedly connected by hinges in the mounting holes at the middle positions of the prefabricated pieces;

[0018] The mounting hole at the end of the prefabricated piece is connected to the adjacent prefabricated piece or the elastic limiting column through a hinge.

[0019] Furthermore, the prefabricated sheet is provided with a prefabricated sheet through hole, and the opening shape of the prefabricated sheet through hole is circular, polygonal, elliptical or irregular;

[0020] The surface of the prefabricated sheet has a convex structure;

[0021] The elastic limiting column is in the shape of a sheet or a rod;

[0022] The elastic limiting column is provided with a limiting column through hole, and the opening shape of the limiting column through hole is circular, polygonal, elliptical or special-shaped;

[0023] The surface of the elastic limiting column has a convex structure.

[0024] Furthermore, the prefabricated sheet is a single-layer structure or a multi-layer structure;

[0025] When the prefabricated sheet is a multi-layer structure, the prefabricated sheet is a composite structure of metal material and polymer material, or a laminated structure of multiple layers of metal material or multiple layers of polymer material;

[0026] When the prefabricated sheet is a multi-layer structure, each layer of the prefabricated sheet is connected by adhesive, mechanical connection or welding.

[0027] Furthermore, the tire frame structure is a single-layer structure or a multi-layer structure when in use;

[0028] The pressure-bearing ring, the mounting ring and the sidewall support structure of the tire frame structure can all be arranged in a form of multiple pressure-bearing rings and mounting rings arranged side by side according to the thickness of the tire.

[0029] Furthermore, the tire frame structure or the surface of the pressure ring, mounting ring and sidewall support structure of the tire frame structure is wrapped or wound with fabric;

[0030] Alternatively, the surfaces of the pressure ring, the mounting ring and the sidewall support structure of the tire frame structure are brushed, sprayed or impregnated with polymer;

[0031] The surface of the prefabricated part can be wrapped with fabric.

[0032] Furthermore, a supporting structure can be added inside the tire frame structure to increase the support of the frame.

[0033] The present invention discloses a tire manufacturing process, which is based on the tire frame structure with variable diameter as described above. The tire frame manufacturing process of the manufacturing process mainly includes the following steps:

[0034] S1. Prefabricated parts process: Prefabricated parts can be processed by machining, hot pressing, injection molding, casting, processing, 3D printing, and rotational molding according to different materials;

[0035] S2. Component manufacturing process: The connection positions of the prefabricated pieces are divided into two ends and a middle part. A hinge is installed in each of the three parts. The hinges are used to connect with adjacent prefabricated pieces and elastic limit columns to form a retractable cross structure with adjacent prefabricated pieces. The length and width of the structure are controlled by the elastic limit columns.

[0036] Based on the manufactured prefabricated parts, the prefabricated parts can be wound around to form a pressure ring and an installation ring;

[0037] Based on the prepared prefabricated parts, a plurality of the prefabricated parts are arranged in parallel to form a sidewall support structure between the pressure ring and the mounting ring;

[0038] S3. Overall assembly process: Place the prepared pressure ring and mounting ring flatly or vertically on the workbench, place the two components concentrically and adjust them to the assembly height, connect the upper and lower sidewall support structures to the hinge structures on the pressure ring and mounting ring respectively. After the assembly is completed, wrap the entire frame with cloth, spray the outer surface, and immerse the entire frame to complete the preparation of the entire frame.

[0039] Furthermore, the tire manufacturing process mainly includes the following steps:

[0040] A1. Place the cloth-wrapped frame into the mold and pour the tire's bead glue and tread glue separately. After pouring and curing, remove the tire from the mold, apply glue to the sidewalls, and then spray or brush the sidewall glue. After brushing, place the tire in a vulcanization chamber for post-vulcanization to complete the tire production.

[0041] A2. After the prefabricated parts process is completed, the prefabricated piece is placed in the mold and directly glued by in-mold pouring or injection molding. The mounting holes are retained during gluing, and the glued prefabricated piece is directly assembled. After assembly, the skeleton is directly placed in the mold to cast the tread. The mounting ring at the tip position is directly connected to the rim using a mechanical method to complete the preparation of the entire tire.

[0042] In the above technical solution, the present invention provides a tire frame structure with a variable diameter and a tire manufacturing process, which have the following beneficial effects:

[0043] The tire frame structure and manufacturing process provided by the present invention simplifies the manufacturing process of the tire frame, and simplifies the complex frame manufacturing into simple prefabricated parts manufacturing and subsequent assembly.

[0044] The tire frame structure and manufacturing process provided by the present invention enable the frame to be manufactured so that one set of frames can be adapted to multiple specifications, thereby reducing the problem of excessive parts inventory caused by different specifications.

[0045] The tire frame structure and manufacturing process provided by the present invention have prefabricated parts with simple shapes and are easy to process, thereby reducing the problem of highly concentrated working procedures in the tire manufacturing process and lowering the construction cost of the tire factory.

[0046] The tire frame structure and manufacturing process provided by the present invention allow prefabricated parts and components to be manufactured remotely, thereby reducing the tire factory's dependence on the supply chain.

[0047] The tire frame structure and manufacturing process provided by the present invention can be made into a multi-layer structure of components to meet customer applications with different needs.

[0048] The tire skeleton structure and manufacturing process provided by the present invention can adjust the skeleton strength by adjusting the cross angle of the prefabricated sheets to meet customer applications with different needs.

[0049] The tire frame structure and manufacturing process provided by the present invention can provide a strong support for the frame body, and can be directly installed on a vehicle for use as a tire in extreme environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0051] Figure 1 A schematic structural diagram of a tire frame structure with a variable diameter disclosed in an embodiment of the present application;

[0052] Figure 2 A schematic structural diagram of a pressure ring of a tire frame structure with a variable diameter disclosed in an embodiment of the present application;

[0053] Figure 3 A schematic structural diagram of a mounting ring of a tire frame structure with a variable diameter disclosed in an embodiment of the present application;

[0054] Figure 4 A schematic structural diagram of a sidewall support structure of a variable-diameter tire frame structure disclosed in an embodiment of the present application;

[0055] Figure 5 Schematic diagram of various prefabricated sheets of a tire frame structure with a variable diameter disclosed in an embodiment of the present application;

[0056] Figure 6 A schematic diagram of a tire frame structure with variable diameters disclosed in an embodiment of the present application used side by side;

[0057] Figure 7 A schematic diagram of the overall skeleton wrapping of the variable-diameter tire skeleton structure disclosed in an embodiment of the present application;

[0058] Figure 8 A schematic diagram of a tire made of a cloth-wrapped frame of a variable-diameter tire frame structure disclosed in an embodiment of the present application;

[0059] Figure 9 Schematic diagram of a tire made from an assembled frame of the variable diameter tire frame structure disclosed in an embodiment of the present application.

[0060] Description of reference numerals:

[0061] 10. Tire frame structure;

[0062] 11. Pressure ring; 12. Mounting ring; 13. Sidewall support structure;

[0063] 1. Prefabricated sheet; 2. Elastic limit column; 3. Hinge. DETAILED DESCRIPTION

[0064] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0065] See also Figures 1 to 9 As shown;

[0066] This embodiment discloses a tire frame structure with a variable diameter. The tire frame structure 10 includes:

[0067] A pressure ring 11 and a mounting ring 12, wherein both the pressure ring 11 and the mounting ring 12 are configured as a variable diameter structure;

[0068] A plurality of sidewall support structures 13 connected between the pressure ring 11 and the mounting ring 12;

[0069] The pressure ring 11, the mounting ring 12, and the sidewall support structure 13 are all assembled from prefabricated parts, and the ends of the prefabricated parts of the pressure ring 11 and the mounting ring 12 are connected with elastic limiting columns 2;

[0070] The prefabricated parts are prefabricated sheets 1 arranged crosswise and capable of adjusting relative angles through hinges 3 at the connection parts;

[0071] The tire frame structure 10 changes the length of the sidewall support structure 13 and the diameters of the pressure ring 11 and the mounting ring 12 by changing the relative angles of the prefabricated pieces 1;

[0072] The tire skeleton structure 10 adjusts the pressure-bearing strength of the pressure ring 11 , the mounting ring 12 , and the sidewall support structure 13 by adjusting the arrangement density of the prefabricated sheets 1 .

[0073] The manufacturing process of the tire frame structure 10 of this embodiment is mainly divided into a parts prefabrication process, a component assembly process and an overall state process.

[0074] Preferably, the tire frame structure 10 of this embodiment is made of at least one of a polymer material, a metal material, and a carbon fiber material.

[0075] Preferably, the prefabricated sheet 1 of this embodiment is in the shape of a sheet or a rod;

[0076] The prefabricated piece 1 is provided with mounting holes at positions near the ends and in the middle thereof, and two adjacent and cross-arranged prefabricated pieces 1 are hingedly connected by hinges 3 in the mounting holes in the middle of the prefabricated piece 1;

[0077] The mounting hole at the end of the prefabricated piece 1 is connected to the adjacent prefabricated piece 1 or the elastic limiting column 2 through the hinge 3. In addition, the hinge 3 of this embodiment can be selected from ordinary hinges, damping hinges, spring hinges, and rebound hinges.

[0078] The prefabricated sheet 1 of this embodiment is provided with a prefabricated sheet through hole, and the opening shape of the prefabricated sheet through hole is circular, polygonal, elliptical or irregular; the surface of the prefabricated sheet 1 has a convex structure;

[0079] The elastic limiting column 2 is in the shape of a sheet or a rod; a limiting column through hole is provided on the elastic limiting column 2, and the opening shape of the limiting column through hole is circular, polygonal, elliptical or irregular; the surface of the elastic limiting column 2 has a convex structure.

[0080] In addition, the length of the elastic limiting column 2 of this embodiment can be adjusted according to the designed outer dimensions of the tire frame.

[0081] Preferably, the prefabricated sheet 1 of this embodiment is a single-layer structure or a multi-layer structure;

[0082] When the prefabricated sheet 1 is a multi-layer structure, the prefabricated sheet 1 is a composite structure of metal material and polymer material, or a laminated structure of multiple layers of metal material or multiple layers of polymer material;

[0083] When the prefabricated sheet 1 is a multi-layer structure, each layer of the prefabricated sheet 1 is connected by adhesive, mechanical connection or welding.

[0084] Preferably, the tire frame structure 10 of this embodiment is a single-layer structure or a multi-layer structure when used;

[0085] The pressure ring 11 , the mounting ring 12 and the sidewall support structure 13 of the tire frame structure 10 can be configured to have multiple pressure rings 11 and mounting rings 12 arranged side by side according to the thickness of the tire.

[0086] The widths and thicknesses of the pressure ring 11 , the mounting ring 12 and the sidewall support structure 13 of the tire frame of this embodiment can all be designed to be of different sizes.

[0087] Preferably, the tire frame structure 10 of this embodiment or the surface of the pressure ring 11, the mounting ring 12 and the sidewall support structure 13 of the tire frame structure 10 are wrapped or wound with fabric;

[0088] Alternatively, the surfaces of the pressure ring 11, the mounting ring 12 and the sidewall support structure 13 of the tire frame structure 10 are brushed, sprayed or impregnated with polymer;

[0089] The surface of the prefabricated part can be wrapped with fabric.

[0090] This embodiment uses wrapping or winding of the fabric, as well as the aforementioned methods of brushing, spraying, and impregnating the polymer to enhance the structure and maintain integrity.

[0091] Based on the above, a support structure can be added inside the tire frame structure 10 of this embodiment to increase the support of the frame. The support structure involved in this embodiment can be an inner tube, a spring, or a rigid support structure.

[0092] In addition, the pressure ring 11, the mounting ring 12 and the sidewall support structure 13 of the tire frame structure 10 of this embodiment can be directly manufactured using a one-time molding method during production. Through in-mold secondary injection molding, in-mold insert injection molding, and in-mold insert casting molding processes, the prefabricated parts are directly placed in the mold to integrally form the pressure ring 11, the mounting ring 12 and the sidewall support structure 13, which are directly used for assembly of the entire frame after molding.

[0093] The present invention discloses a tire manufacturing process. The tire manufacturing process is based on the variable diameter tire frame structure 10 as described above. The tire frame manufacturing process of the manufacturing process mainly includes the following steps:

[0094] S1. Prefabricated parts process: Prefabricated parts can be processed by machining, hot pressing, injection molding, casting, processing, 3D printing, and rotational molding according to different materials;

[0095] S2. Component manufacturing process: The connection positions of the prefabricated pieces 1 are divided into two ends and a middle part. A hinge 3 is installed in each of the three parts. The hinge 3 is used to connect the adjacent prefabricated pieces 1 and the elastic limiting pillars 2, forming a retractable cross structure between the adjacent prefabricated pieces 1. The length and width of the structure are controlled by the elastic limiting pillars 2.

[0096] Based on the manufactured prefabricated parts, the prefabricated parts can be wound around to form the pressure ring 11 and the installation ring 12;

[0097] Based on the prepared prefabricated parts, a plurality of the prefabricated parts are arranged in parallel to form a sidewall support structure 13 between the pressure ring 11 and the mounting ring 12;

[0098] S3. Overall assembly process: Place the prepared pressure ring 11 and mounting ring 12 flatly or vertically on the workbench, place the two components concentrically and adjust them to the assembly height, connect the upper and lower sidewall support structures 13 to the hinge structures on the pressure ring 11 and mounting ring 12 respectively. After the assembly is completed, wrap the entire frame with cloth, spray the outer surface, and immerse the entire frame to complete the preparation of the entire frame.

[0099] Furthermore, the tire manufacturing process mainly includes the following steps:

[0100] A1. Place the cloth-wrapped frame into the mold and pour the tire's bead glue and tread glue separately. After pouring and curing, remove the tire from the mold, apply glue to the sidewalls, and then spray or brush the sidewall glue. After brushing, place the tire in a vulcanization chamber for post-vulcanization to complete the tire production.

[0101] A2. After the prefabricated parts process is completed, the prefabricated piece is placed in the mold and directly glued by in-mold pouring or injection molding. The mounting holes are retained during gluing, and the glued prefabricated piece 1 is directly assembled. After the assembly is completed, the skeleton is directly placed in the mold to cast the tread. The mounting ring 12 at the tip position is directly connected to the rim using a mechanical method to complete the preparation of the entire tire.

[0102] Embodiment 1;

[0103] like Figure 1 As shown, a tire frame structure with a variable diameter;

[0104] like Figure 8 As shown, a 17.5R25 tire is produced;

[0105] The outer diameter of the frame is 1200 mm and the width is 140 mm. The size of the prefabricated piece 1 is designed according to the size of the frame.

[0106] Prefabrication process: The metal frame of the prefabricated piece 1 is made by stamping, and a standard hinge shaft and a standard spring are purchased as the elastic limit column 2;

[0107] Component manufacturing process: The connection position of the prefabricated piece 1 is divided into two ends and the middle part. A hinge axis is installed in each of the three parts. The hinge axis is used to connect the adjacent prefabricated pieces 1 and the elastic limit column 2 to form a retractable cross structure between the adjacent prefabricated pieces 1. The length and width of the structure are controlled by the elastic limit column 2. After the structure is wrapped around once, a pressure ring 11 is formed. Figure 2 As shown and mounted on the ring 12, Figure 3 As shown, several structures can be connected to form the sidewall support structure 13 between the pressure ring 11 and the mounting ring 12, as shown in FIG. Figure 4 shown.

[0108] Overall assembly process: Place the prepared pressure ring 11 and mounting ring 12 flat on the workbench or vertically, place the two components concentrically and adjust them to the assembly height, and connect the upper and lower sidewall support structures 13 to the hinge structures on the pressure ring 11 and the mounting ring 12 respectively. After the assembly is completed, the entire skeleton can be wrapped with cloth, sprayed on the outer surface, and impregnated as a whole to complete the preparation of the entire skeleton.

[0109] Tire manufacturing process: Place the cloth-wrapped skeleton into the mold, pour the tire's bead glue and tread glue separately, wait for the bead glue and tread glue to solidify, take the tire out of the mold, apply glue on the sidewall, and then spray or apply the sidewall glue. After brushing, place the tire in the vulcanization room for post-vulcanization to complete the preparation of the entire tire.

[0110] Embodiment 2;

[0111] like Figure 6As shown, a variable diameter tire frame structure used side by side;

[0112] like Figure 9 As shown, make 550 / 60R20 tire;

[0113] The outer diameter of the frame is 800 mm and the width is 500 mm. The size of the prefabricated piece 1 is designed according to the size of the frame.

[0114] Prefabrication process: The metal frame of the prefabricated piece 1 is made by stamping, the metal frame is placed in an injection mold and coated with thermoplastic polyurethane material by injection molding, and a standard hinge shaft and a standard spring are purchased from outside as elastic limit columns;

[0115] Component Manufacturing Process: The connection points of the preform 1 are divided into two ends and a middle section. Each of these three sections is equipped with a hinge axis. These hinge axes connect to adjacent preforms 1 and elastic limit posts 2, forming a retractable cross structure between adjacent preforms 1. The length and width of this structure are controlled by the elastic limit posts 2. This structure is wound around once, and two circles are then connected side by side to form a pressure ring 11. Two small mounting rings 12 are connected by preforms 1 to form mounting ring 12. Several separate structures can be connected to form the sidewall support structure 13 between the pressure ring 11 and the mounting ring 12.

[0116] Overall assembly process: Place the prepared components, the pressure ring 11 and the mounting ring 12, flatly or vertically on the workbench, place the two components concentrically and adjust them to the assembly height, and connect the sidewall support structures 13 on the upper and lower sides to the hinge structures on the pressure ring 11 and the mounting ring 12 respectively. After the assembly is completed, the preparation of the entire skeleton is completed.

[0117] Tire manufacturing process: After the assembly is completed, the frame is directly placed in the mold to cast the tread, and the mounting ring 12 at the tip position is directly connected to the rim using a mechanical method to complete the preparation of the entire tire.

[0118] In the above technical solution, the present invention provides a tire frame structure with a variable diameter and a tire manufacturing process, which have the following beneficial effects:

[0119] The tire frame structure and manufacturing process provided by the present invention simplifies the manufacturing process of the tire frame, and simplifies the complex frame manufacturing into simple prefabricated parts manufacturing and subsequent assembly.

[0120] The tire frame structure and manufacturing process provided by the present invention enable the frame to be manufactured so that one set of frames can be adapted to multiple specifications, thereby reducing the problem of excessive parts inventory caused by different specifications.

[0121] The tire frame structure and manufacturing process provided by the present invention have prefabricated parts with simple shapes and are easy to process, thereby reducing the problem of highly concentrated working procedures in the tire manufacturing process and lowering the construction cost of the tire factory.

[0122] The tire frame structure and manufacturing process provided by the present invention allow prefabricated parts and components to be manufactured remotely, thereby reducing the tire factory's dependence on the supply chain.

[0123] The tire frame structure and manufacturing process provided by the present invention can be made into a multi-layer structure of components to meet customer applications with different needs.

[0124] The tire skeleton structure and manufacturing process provided by the present invention can adjust the skeleton strength by adjusting the cross angle of the prefabricated sheets to meet customer applications with different needs.

[0125] The tire frame structure and manufacturing process provided by the present invention can provide a strong support for the frame body, and can be directly installed on a vehicle for use as a tire in extreme environments.

[0126] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. A tire frame structure with a variable diameter, characterized in that: The tire frame structure (10) comprises: A pressure ring (11) and a mounting ring (12), wherein the pressure ring (11) and the mounting ring (12) are both configured as a variable diameter structure; a plurality of sidewall support structures (13) connected between the pressure ring (11) and the mounting ring (12); The pressure ring (11), the mounting ring (12), and the sidewall support structure (13) are all assembled from prefabricated parts, and elastic limiting columns (2) are connected to the end positions of the prefabricated parts of the pressure ring (11) and the mounting ring (12); The prefabricated parts are prefabricated sheets (1) arranged crosswise and capable of adjusting relative angles via hinges (3) at the connecting parts; The tire skeleton structure (10) changes the length of the sidewall support structure (13) and the diameters of the pressure ring (11) and the mounting ring (12) by changing the relative angle of the prefabricated sheet (1); The tire skeleton structure (10) adjusts the pressure-bearing strength of the pressure-bearing ring (11), the mounting ring (12), and the sidewall support structure (13) by adjusting the arrangement density of the prefabricated sheets (1); The prefabricated sheet (1) is in the shape of a sheet or a rod; The prefabricated sheet (1) is provided with mounting holes at positions near the ends and at the middle thereof, and two adjacent and cross-arranged prefabricated sheets (1) are hingedly connected via hinges (3) in the mounting holes at the middle positions of the prefabricated sheets (1); The mounting hole at the end of the prefabricated sheet (1) is connected to the adjacent prefabricated sheet (1) or the elastic limiting column (2) via a hinge (3); a prefabricated sheet through hole is provided on the prefabricated sheet (1), and the opening shape of the prefabricated sheet through hole is circular, polygonal, elliptical or irregular; The surface of the prefabricated sheet (1) has a convex structure; The elastic limiting column (2) is in the shape of a sheet or a rod; The elastic limiting column (2) is provided with a limiting column through hole, and the opening shape of the limiting column through hole is circular, polygonal, elliptical or irregular; The surface of the elastic limiting column (2) has a convex structure.

2. A tire frame structure with a variable diameter according to claim 1, characterized in that: The tire skeleton structure (10) is made of at least one of a polymer material, a metal material, and a carbon fiber material.

3. The variable diameter tire frame structure according to claim 1, characterized in that: The prefabricated sheet (1) is a single-layer structure or a multi-layer structure; When the prefabricated sheet (1) is a multi-layer structure, the prefabricated sheet (1) is a composite structure of a metal material and a polymer material, or a laminated structure of multiple layers of metal material or multiple layers of polymer material; When the prefabricated sheet (1) is a multi-layer structure, each layer of the prefabricated sheet (1) is connected by adhesive, mechanical connection or welding.

4. The variable diameter tire frame structure according to claim 1, characterized in that: The tire frame structure (10) is a single-layer structure or a multi-layer structure when in use; The pressure-bearing ring (11), the mounting ring (12), and the sidewall support structure (13) of the tire skeleton structure (10) can all be arranged in a form where multiple pressure-bearing rings (11) and mounting rings (12) are arranged side by side according to the thickness of the tire.

5. The variable diameter tire frame structure according to claim 1, characterized in that: The tire frame structure (10) or the surface of the pressure ring (11), the mounting ring (12) and the sidewall support structure (13) of the tire frame structure (10) are wrapped or wound with fabric; Alternatively, the surfaces of the pressure ring (11), the mounting ring (12), and the sidewall support structure (13) of the tire skeleton structure (10) are brushed, sprayed, or impregnated with polymer; The surface of the prefabricated part can be wrapped with fabric.

6. The variable diameter tire frame structure according to claim 5, characterized in that: A supporting structure can be added inside the tire frame structure (10) to increase the support performance of the frame.

7. A tire manufacturing process, characterized in that: The tire manufacturing process is based on the variable diameter tire frame structure (10) according to any one of claims 1 to 6, and the tire frame manufacturing process of the manufacturing process mainly includes the following steps: S1. Prefabricated parts process: Prefabricated parts can be processed by machining, hot pressing, injection molding, casting, processing, 3D printing, and rotational molding according to different materials; S2, component manufacturing process: The connection position of the prefabricated piece (1) is divided into two ends and a middle part, and a hinge (3) is installed on each of the three parts. The hinge (3) is used to connect with the adjacent prefabricated piece (1) and the elastic limiting column (2), forming a retractable cross structure with the adjacent prefabricated piece (1), and the length and width of the structure are controlled by the elastic limiting column (2); Based on the manufactured prefabricated part, the prefabricated part is wound around to form a pressure ring (11) and a mounting ring (12); Based on the manufactured prefabricated parts, a plurality of the prefabricated parts are arranged in parallel to form a sidewall support structure (13) between the pressure ring (11) and the mounting ring (12); S3, overall assembly process: Place the prepared components, the pressure ring (11) and the installation ring (12), flatly or vertically on the workbench, place the two components concentrically and adjust them to the assembly height, and connect the sidewall support structures (13) on the upper and lower sides to the hinge structures on the pressure ring (11) and the installation ring (12). After the assembly is completed, wrap the entire frame with cloth, spray the outer surface, and immerse the entire frame to complete the preparation of the entire frame.

8. The tire manufacturing process according to claim 7, characterized in that: The tire manufacturing process mainly includes the following steps: A1. Place the cloth-wrapped frame into the mold and pour the tire's bead glue and tread glue separately. After pouring and curing, remove the tire from the mold, apply glue to the sidewalls, and then spray or brush the sidewall glue. After brushing, place the tire in a vulcanization chamber for post-vulcanization to complete the tire production. A2. After the prefabricated parts process is completed, the prefabricated piece is placed in the mold and directly glued by in-mold pouring or injection molding. The mounting holes are retained during gluing, and the glued prefabricated piece is directly assembled. After assembly, the skeleton is directly placed in the mold to cast the tread. The mounting ring at the tip position is directly connected to the rim using a mechanical method to complete the preparation of the entire tire.

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