Tire framework

Abstract

A tire framework comprises at least one set of integrated base bodies and a plurality of supporting structures, the base bodies are of a plate-shaped structure, fixing protrusion base body connectors are connected with fixing groove base body connectors so as to enable the base bodies to form a cylindrical structure, and at least one base body function hole is formed in the base bodies in a penetrating mode so as to enhance the attaching force of the base bodies and rubber materials. The at least one base body connecting port is formed in the base body so as to be connected with the pressure bearing ring, the multiple supporting structures transversely extend from the base body and are arranged in the radial direction of the tire, the supporting structures can be bent to form the radian of a tire body framework, and the supporting structure positioning holes are formed in the outer sides, away from the base body, of the supporting structures in a penetrating mode. The supporting structure functional holes are formed in the inner sides, close to the base body, of the supporting structures in a penetrating mode so as to enhance the attaching force of the supporting structures and rubber materials, the number of connecting points of the supporting structures on the tread portion is eliminated, supporting performance is high, and controllability is excellent.

Description

Technical Field

[0001] The utility model relates to the technical field of tire manufacturing, in particular to a tire frame. Background Art

[0002] Existing all-steel radial truck and bus tires were primarily introduced by the French company Michelin in the 1950s. The structure of an all-steel radial tire includes the tread, base rubber, belt, carcass, soft apex rubber, hard apex rubber, 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 manufacturing steps of all-steel radial rubber tires are as follows: first, the rubber compound is mixed in an internal mixer, then the components are produced by extrusion or calendaring, the components are compounded in a molding machine to produce a tire blank, and finally, the tire is vulcanized in a vulcanizer to obtain the finished tire. In other words, the three main steps are component production, tire blank molding, and tire blank vulcanization.

[0004] Existing tire production processes using casting technology have significantly simplified the tire manufacturing process. The process employed in CN110561979B, in particular, has significantly reduced production costs, manufacturing processes, and fixed assets. In actual production, while the overall process is simplified, the tire frame assembly suffers from complex manufacturing and assembly processes, as well as poor cushioning performance, which significantly impacts production efficiency. During actual use, the frame in the tread area experiences significant deformation, which can easily lead to stress concentration at the connection point between the bearing ring and the carcass frame, reducing tire life.

[0005] The above information disclosed in the background technology section is only used to enhance understanding of the background of the present invention and therefore may contain information that does not constitute the prior art known to ordinary technicians in this field. Utility Model Content

[0006] The purpose of the utility model is to provide a tire frame, the integrated structure of which eliminates the number of connection points of the supporting structure at the tread portion. After deformation, the frame can be quickly assembled with the pressure ring, the mounting ring, and the rim. It has the advantages of simple assembly, strong support, excellent controllability, and good buffering performance, which can greatly improve work efficiency.

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

[0008] The tire frame of the utility model comprises at least one set of integrated base and multiple supporting structures, wherein:

[0009] The substrate is a plate-like structure.

[0010] A fixed groove base joint is provided at one end of the base in the longitudinal direction.

[0011] A fixed protrusion base joint is provided in the longitudinal direction of the base and opposite to the other end of the fixed groove base joint. The fixed protrusion base joint is connected to the fixed groove base joint to form a cylindrical structure of the base.

[0012] At least one substrate functional hole is provided through the substrate to enhance the adhesion between the substrate and the rubber material.

[0013] At least one base connection port, which is opened on the base to connect to the pressure ring,

[0014] Multiple support structures extending laterally from the base and arranged along the radial direction of the tire, wherein the support structures can be bent into the curvature of the tire carcass skeleton,

[0015] At least one support structure positioning hole is provided through the support structure to connect the mounting ring and the rim,

[0016] At least one supporting structure functional hole is provided through the supporting structure to enhance the adhesion between the supporting structure and the rubber material.

[0017] In the tire frame, the outer contour of the base functional hole or the supporting mechanism functional hole is S-shaped, circular, elliptical or polygonal.

[0018] In the tire frame, the base can be connected and used in conjunction with the pressure ring. The base connection port is connected to the pressure ring by welding, riveting, bonding, bolt assembly or slot assembly. The base can also be used alone.

[0019] In the tire frame, the end of the fixing groove base joint is provided with a first slope with a first inclination angle, the first slope is recessed with at least one fixing groove, the end of the fixing protrusion base joint is provided with a second slope with a second inclination angle, the second slope is arranged with at least one fixing protrusion protruding outward, and the fixing groove connects and positions the fixing protrusion.

[0020] In the tire frame, the sum of the first inclination angle and the second inclination angle is 180 degrees.

[0021] In the tire frame, the support structures are symmetrically arranged on both sides of the base.

[0022] In the tire frame, the airbag is placed in the space of the support structure symmetrically arranged on both sides of the base.

[0023] In the tire frame, the support structure is arranged on one side of the base. After two tire frames are spliced on both sides, the support structures are symmetrically arranged on both sides of the base.

[0024] In the tire frame, the tire frame is a symmetrical structure.

[0025] The tire frame further includes a functional hole penetrating the support structure, and the outer contour of the functional hole is S-shaped, circular, elliptical or polygonal.

[0026] The utility model adopts an integrated structure with a simpler structure, which significantly reduces the number of connection points between the pressure ring and the tire frame, reduces stress concentration in the frame, and increases the life of the tire; the manufacturing cost is much lower than that of existing technologies such as support structures, elastic columns, elastic columnar structures and elastic sheets, making the tire cost lower; it greatly improves assembly efficiency; compared with the existing technology, it is more convenient to recycle, and the speed of stripping and reusing the frame after the tire is recycled is faster, which improves the utilization rate of the frame; the frame has strong support, and in extreme cases, the external polymer is damaged or lacks air, or the tire bursts, it does not affect the tire load-bearing capacity and can continue to be used; the frame, pressure ring, mounting ring, and rim are assembled into a whole and can be used directly as a tire; the tire made with this frame has higher force transmission efficiency and more sensitive control. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] 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 recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0028] Figure 1 This is the unfolded diagram of the tire frame;

[0029] Figure 2 It is a three-dimensional diagram of the fixed groove base joint;

[0030] Figure 3 A three-dimensional diagram of a fixed protrusion base joint;

[0031] Figure 4 A perspective view of the rear tire frame for forming the base into a cylindrical shape;

[0032] Figure 5 A three-dimensional diagram of the tire frame after the support structure is bent into the arc of the carcass frame;

[0033] Figure 6 is a plan view after the base and supporting structure are deformed;

[0034] Figure 7 This is a three-dimensional diagram of the assembly of the primary method frame, installation ring and pressure ring;

[0035] Figure 8This is a stereoscopic diagram of the assembly of the frame, mounting ring, pressure ring and rim in one step;

[0036] Figure 9 This is a partial stereogram of the assembly of the frame, mounting ring, pressure ring and rim in one-step method;

[0037] Figure 10 A stereogram of the assembly of the tire frame and mounting ring;

[0038] Figure 11 A stereoscopic diagram of the assembly of the tire frame, mounting ring, and rim;

[0039] Figure 12 This is a partial stereogram of the tire frame after deformation;

[0040] Figure 13 There are two sets of unilateral skeleton stereograms;

[0041] Figure 14 A three-dimensional diagram of the cylindrical shape formed by the base of the two sets of unilateral skeletons;

[0042] Figure 15 The supporting structures of two sets of single-side frames are bent into a three-dimensional diagram of the carcass frame arc;

[0043] Figure 16 is a set of plane images after unilateral skeleton deformation;

[0044] Figure 17 A three-dimensional diagram of two sets of single-side frames deformed and spliced and assembled with the mounting ring;

[0045] Figure 18 A three-dimensional diagram of two sets of single-side frames after deformation and splicing, assembled with the installation ring and pressure ring;

[0046] Figure 19 This is a three-dimensional diagram of two sets of single-sided skeletons being deformed and spliced together and assembled with the mounting ring, pressure ring, and rim.

[0047] Description of reference numerals:

[0048] 1. Base; 1-1. Fixed groove base joint; 1-2. Fixed protrusion base joint; 1-3. Base functional hole; 1-4. Base connection port; 2. Support structure; 2-1. Support structure positioning hole; 2-2. Support structure functional hole; 3. Fixed groove; 4. Fixed protrusion; 5. Mounting ring; 6. Rim; 7. Pressure ring; 8. Weld. DETAILED DESCRIPTION

[0049] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0050] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0051] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0052] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 should not be understood as a limitation on the present invention.

[0053] 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 specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0054] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; they can refer to direct connection or indirect connection through an intermediate medium; they can refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0055] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0056] 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.

[0057] See also Figure 1-19 As shown, in one embodiment, a tire frame of the present invention includes at least one set of an integrated base and a plurality of support structures, wherein:

[0058] The base 1 is a plate-like structure and is deformed into a cylindrical structure after processing.

[0059] The fixed groove base joint 1-1 is provided at one end of the base 1 in the longitudinal direction.

[0060] The fixed protrusion base joint 1-2 is provided in the longitudinal direction of the base 1 and is opposite to the other end of the fixed groove base joint 1-1. The fixed protrusion base joint 1-2 is connected to the fixed groove base joint 1-1 to form the base 1 into a cylindrical structure.

[0061] At least one base functional hole 1-3 is provided through the base 1 to enhance the adhesion between the base 1 and the rubber material.

[0062] At least one base connection port 1-4 is opened on the base 1 to connect to the pressure ring 7,

[0063] Multiple support structures 2 extend laterally from the base 1 and are arranged along the radial direction of the tire. The support structures 2 can be bent and deformed to form the curvature of the tire carcass skeleton.

[0064] At least one support structure positioning hole 2-1 is provided on the outer side of the support structure 2 away from the base 1 to connect the mounting ring 5 and the rim 6.

[0065] Furthermore, it also includes at least one supporting structure functional hole 2-2, which is penetrated through the inner side of the supporting structure 2 close to the base 1 to enhance the adhesion between the supporting structure 2 and the rubber material.

[0066] In a preferred embodiment of the tire frame, the outer contour of the base functional hole 1-3 or the supporting structure functional hole 2-2 is S-shaped, circular, elliptical or polygonal.

[0067] In a preferred embodiment of the tire frame, the base 1 can be connected and used in conjunction with the pressure ring 7, and the base connection ports 1-4 are connected to the pressure ring 7 by welding, riveting, bonding, bolt assembly or slot assembly, and the base 1 can also be used alone.

[0068] In a preferred embodiment of the tire frame, the end of the fixing groove base joint 1-1 is provided with a first slope with a first inclination angle, and the first slope is recessed with at least one fixing groove 3, and the end of the fixing protrusion base joint 1-2 is provided with a second slope with a second inclination angle, and the second slope is protruding outwardly with at least one fixing protrusion 4, and the fixing groove 3 connects and positions the fixing protrusion 4.

[0069] In a preferred embodiment of the tire frame, the sum of the first inclination angle and the second inclination angle is 180 degrees.

[0070] In a preferred embodiment of the tire frame, the support structure 2 is symmetrically arranged on both sides of the base 1, or the support structure 2 is arranged on one side of the base 1. After the two tire frames are spliced on both sides, the support structure 2 is symmetrically arranged on both sides of the base 1.

[0071] In a preferred embodiment of the tire frame, the airbag is placed in the space of the support structure 2 symmetrically arranged on both sides of the base 1.

[0072] In a preferred embodiment of the tire frame, the tire frame is a symmetrical structure.

[0073] In one embodiment, multiple sets of integrated base bodies and multiple support structures can be combined.

[0074] In one embodiment, the tire frame is composed of a base 1 and a support structure 2, and the base 1 and the support structure 2 can be integrated; the base 1 is a plate-like structure with a quadrilateral cross-section and a certain thickness, which is formed into a cylindrical structure after processing and deformation, and is provided with a fixed groove base joint 1-1, a fixed protrusion base joint 1-2, a base functional hole 1-3, and a base connection port 1-4; the base 1 is connected to the pressure ring 7, has high bearing strength, and can stabilize the overall skeleton shape; the support structure 2 is a structure with a certain shape and thickness that is integrally connected to the base 1 and extends to both sides, and can form the curvature of the tire carcass skeleton after bending and deformation, and the support structure 2 is arranged along the radial direction of the tire as a whole, providing the tire with bearing, buffering and torsional performance; the support structure 2 is provided with a support structure positioning hole 2-1 on the outside and a support structure functional hole 2-2 on the inside; the base 1 and the support structure 2 are deformed to form a skeleton, which can be quickly assembled with the mounting ring 5, the rim 6, and the pressure ring 7. The base body is provided with base functional holes 1-3 to enhance the adhesion between the base body and the rubber. The outer contour of the functional holes can be S-shaped, circular, elliptical, polygonal or special-shaped, and the number and depth of the holes are determined according to the specifications of the tire. The base body is provided with base connection ports 1-4 to connect the skeleton to the pressure ring. The number and depth of the holes are determined according to the specifications of the tire. The specific connection method can be welding, riveting, bonding, bolt assembly, and slot assembly. The base body 1 has a fixed groove base joint 1-1 and a fixed protrusion base joint 1-2 at both ends of the joint. The joint is provided with a fixed groove 3 and a fixed protrusion 4, wherein the fixed groove 3 is used to place and position the fixed protrusion 4, and the fixed protrusion is used to connect the first and second grooves on both sides. The two cooperate to improve the firmness of the groove connection. The number of the fixed groove 3 and the fixed protrusion 4 can be single or multiple, and can be multi-piece or integrated. The support structure 2 can be arranged symmetrically on both sides of the base 1, or it can be arranged on one side of the base 1, and the two sides can be spliced together to form a symmetrical arrangement. The support structure is provided with support structure positioning holes 2-1 on the outside for connecting the support structure to the mounting ring and rim; the support structure is provided with support structure functional holes 2-2 on the inside to enhance the adhesion between the support structure and the rubber material. The base 1 can be connected to the pressure ring 7 for use. The base connection ports 1-4 are connected to the pressure ring 7 through welding, riveting, bonding, bolt assembly, or slot assembly. The base 1 can also be used alone. The airbag can be inserted into the space between the support structures 2 arranged symmetrically on both sides of the base 1; the airbag can also be inserted before the two bases are spliced together.

[0075] In one embodiment, the process of assembling a tire frame with a tire includes:

[0076] The base 1 and the support structure 2 are formed by one-step molding, which can be done by extrusion, drawing, spinning, stamping, machining, injection molding, casting, or 3D printing.

[0077] After the base 1 is deformed by processing, the fixed groove base joints 1-1 and the fixed protrusion base joints 1-2 on both sides are first connected and fixed to form a cylindrical structure. The specific method can be spinning, stamping, or machining. Then, the roundness of the cylinder is corrected on a roundness correction machine.

[0078] The support structure 2 is bent and deformed to form the curvature of the tire carcass skeleton, and the specific method can be spinning, stamping, or machining;

[0079] Place the skeleton into the heat treatment furnace and complete the corresponding heat treatment process according to the surface hardness requirements;

[0080] Degreasing, rust removal, and oxidation coating removal are performed on the surface of the heat-treated skeleton;

[0081] Connect the cylindrical base 1 to the pressure ring 7 through the base connection ports 1-4, insert the airbag before connecting the mounting ring 5, then position and connect the bent support structure 2 to the mounting ring 5 through the positioning holes 2-1, and correct the roundness of the formed skeleton; place the skeleton with the surface treatment in a drying oven to control the humidity and prevent surface rust; soak or spray the skeleton with glue, dry it, and leave it for a certain period of time; connect the treated skeleton to the rim 6, and center the rim 6 , correct the overall roundness; assemble the tire mold, place it into the mold as a whole, and position it; after positioning, put it in the oven and preheat it as required; pour the tire: first inflate the airbag, then pour the sidewall of the lower mold, after the rubber solidifies, pour the rubber at the nozzle position, after solidification, turn the mold 180° to complete the pouring of the other sidewall, after the rubber solidifies, turn the mold to a vertical position to complete the pouring of the tread; put the poured tire into the oven for curing; after curing, remove the mold to obtain a finished tire.

[0082] Preferably, the base 1 is a plate-like structure with a rectangular cross-section and a certain thickness, which is deformed into a cylindrical structure after processing. It is provided with a fixed groove base joint 1-1, a fixed protruding base joint 1-2, base functional holes 1-3, and base connection ports 1-4. The base 1 is connected to the pressure ring 7, providing high load-bearing strength and stabilizing the overall skeleton shape. The base is provided with base connection ports 1-4, which are used to connect the skeleton to the pressure ring. The number and depth of these ports vary depending on the tire specifications. Specific connection methods include welding, riveting, bonding, bolt assembly, and slot assembly.

[0083] Preferably, support structure positioning holes 2-1 are arranged on the outside of the support structure to connect the support structure with the mounting ring and the rim. The outer contour of the positioning holes can be S-shaped, circular, elliptical, polygonal or irregular, and their number and depth depend on different tire specifications.

[0084] Preferably, support structure functional holes 2-2 are arranged on the inner side of the support structure to enhance the adhesion between the support structure and the rubber. The outer contour of the functional holes can be S-shaped, circular, elliptical, polygonal or irregular, and their number and depth depend on different tire specifications.

[0085] Preferably, the base 1 can be formed into a cylindrical shape through spinning, stamping, or machining, and then the cylindrical roundness can be corrected on a roundness correction machine. The support structure 2 can be deformed through spinning, stamping, or machining to form the curvature of the tire carcass skeleton. The base 1 and support structure 2 can be made of metal, non-metal, organic polymer, or composite materials. The thickness, length, and connection area dimensions can be adjusted according to tire specifications. They can be constructed from different materials in a single or multi-layer structure, or from a single material in a single or multi-layer structure.

[0086] Preferably, the tire with the airbag can be used as either a pneumatic tire or a non-pneumatic tire according to different usage scenarios.

[0087] Preferably, the tire frame, the pressure ring, the mounting ring and the rim can be assembled by welding, riveting, bonding, bolt assembly or slot assembly.

[0088] Example 1

[0089] Taking the tire size 27.00R49 as an example, when producing a hollow tire, if a high-strength tire carcass is used and the support structure 2 is thickened, it can be used as a non-pneumatic tire. In this case, the support structure 2 is arranged symmetrically on both sides of the base 1. The tire skeleton forming method is as follows:

[0090] First, the base 1 and the symmetrically arranged support structure 2 are punched out, see Figure 1 , roll the base 1 into a cylindrical structure, see Figure 4 , and then bend the support structure 2 into the carcass frame curvature, see Figure 5 , cross section as Figure 6 As shown. The tire frame is then placed in a heat treatment furnace at 830°C. The hardness of the workpiece after treatment is HRC40-45. After removal, the surface of the tire frame is degreased, rusted, and the oxidation coating is removed. The base connection port 1-4 is connected to the pressure ring 7. The airbag is inserted before connecting the mounting ring 5. The processed support structure 2 is positioned and connected to the mounting ring 5 through the support structure positioning hole 2-1. Figure 7 As shown, the formed skeleton is corrected for roundness and placed in a drying oven, and the humidity is controlled at 10% to 30% RH to prevent surface rust. Finally, glue is applied to the entire skeleton and the skeleton is dried and placed for 2 hours.

[0091] Next, the frame is connected to the rim 6, and the whole is centered and the roundness is corrected. Figure 8、 Figure 9 As shown. After assembling the tire mold, insert the frame and position it. Preheat in an oven at 80°C for one hour as required. When casting the pneumatic tire, first inflate the airbag, then cast the lower mold sidewall. After the rubber solidifies, cast the sprue. After solidification, flip the mold 180° and cast the other sidewall. After the rubber solidifies, flip the mold to a vertical position to complete the casting of the tread. The cast tire is placed in an oven to cure for 6 hours. After removal from the mold, the finished tire is obtained. In addition, due to the use of a new tire structure, the tire specification (27.00R49) selected in this example is only a reference to its external dimensions.

[0092] Example 2

[0093] Taking the tire 21.00R25 as an example, hollow tires can be produced. When used in low-load scenarios, the base 1 in this frame can replace the pressure ring 7. In this case, the support structure 2 is symmetrically arranged on both sides of the base 1. The tire frame is assembled as follows: First, the base 1 and the symmetrically arranged support structure 2 are stamped out. Figure 1 , roll the base 1 into a cylindrical structure, see Figure 4 , and then bend the support structure 2 into the carcass frame curvature, such as Figure 5 As shown, the cross section Figure 6 As shown, the tire frame is then placed in a heat treatment furnace at 830°C. The hardness of the workpiece after heat treatment is HRC40-45. After removal, the frame surface is degreased, rusted, and the oxidation coating is removed. The airbag is inserted before connecting the mounting ring 5. The processed support structure 2 is positioned and connected to the mounting ring 5 through the support structure positioning hole 2-1, as shown. Figure 10 As shown, the formed skeleton is corrected for roundness and placed in a drying oven, and the humidity is controlled at 10% to 30% RH to prevent surface rust. Finally, glue is applied to the entire skeleton and the skeleton is dried and placed for 2 hours.

[0094] Next, the frame is connected to the rim 6, and the whole is centered and the roundness is corrected. Figure 11 、 Figure 12 As shown. After assembling the tire mold, insert the frame and position it. Preheat in an oven at 80°C for one hour as required. When casting the pneumatic tire, first inflate the airbag, then cast the lower mold sidewall. After the rubber solidifies, cast the spigot. After solidification, flip the mold 180° and cast the other sidewall. After the rubber solidifies, flip the mold to a vertical position to complete the casting of the tread area. The cast tire is placed in an oven to cure for 6 hours. After demolding, the finished tire is obtained. In addition, due to the use of a new tire structure, the tire specification (21.00R25) selected in this example is only a reference to its external dimensions.

[0095] Example 3

[0096] Taking the tire size 6.50R10 as an example, hollow tires can be produced. Using a different airbag placement process from the previous example, the support structure 2 is only on one side of the base 1, and the overall frame is spliced by two sets of single-sided frames. The tire frame is assembled as follows:

[0097] First, the base 1 and the single-sided support structure 2 are machined. Figure 13 Roll the two base bodies 1 with the support structure 2 on one side into a cylindrical structure, see Figure 14 , bend the single-side support structure 2 into the radian of the tire carcass skeleton, such as Figure 15 、 Figure 16 As shown. Then put the skeleton into the heat treatment furnace at 830℃. The hardness of the workpiece after heat treatment is HRC40-45. After taking it out, the skeleton surface is degreased, rusted, and the oxidation coating is removed. The two single-sided carcass skeletons are connected to the mounting ring 5 through the support structure positioning hole 2-1 on the support structure 2. The airbag is placed before the base bodies 1 on both sides are spliced. Then, the base bodies 1 on both sides are welded by the cylindrical automatic welding equipment. The weld seam 8 is formed between the base bodies 1. Figure 17 The cylindrical base 1 is connected to the pressure ring 7 through the base connection port 1-4 and the roundness is corrected. Figure 18 After completion, place it in a drying oven and control the humidity at 10% to 30% RH to prevent surface rust. Finally, apply glue to the entire piece and dry it for 2 hours.

[0098] Next, connect the frame to the rim 6, center the rim 6, and correct the roundness. Figure 19 、 Figure 9 As shown. After assembling the tire mold, insert the frame and position it. Preheat in an oven at 80°C for one hour as required. When casting the pneumatic tire, first inflate the bladder, then cast the lower mold sidewall. After the rubber solidifies, cast the sprue. After solidification, flip the mold 180° and cast the other sidewall. After the rubber solidifies, flip the mold to a vertical position to complete the casting of the tread. The cast tire is then placed in an oven to cure for six hours. After removal from the mold, the finished tire is obtained. In addition, due to the new tire structure, the tire specification (6.50R10) used in this example is only a reference to its overall dimensions.

[0099] Finally, it should be noted that the described embodiments are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of this application.

[0100] 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 of the present invention.

Claims

1. A tire frame, characterized in that: It includes at least one set of an integral base and a plurality of supporting structures, wherein, The substrate is a plate-like structure. A fixed groove base joint is provided at one end of the base in the longitudinal direction. A fixed protrusion base joint is provided in the longitudinal direction of the base and opposite to the other end of the fixed groove base joint. The fixed protrusion base joint is connected to the fixed groove base joint to form a cylindrical structure of the base. At least one substrate functional hole is provided through the substrate to enhance the adhesion between the substrate and the rubber material. At least one base connection port, which is opened on the base to connect to the pressure ring, Multiple support structures extending laterally from the base and arranged along the radial direction of the tire, wherein the support structures can be bent into the curvature of the tire carcass skeleton, At least one support structure positioning hole is provided through the support structure to connect the mounting ring and the rim, At least one supporting structure functional hole is provided through the supporting structure to enhance the adhesion between the supporting structure and the rubber material.

2. A tire frame according to claim 1, characterized in that: The outer contour of the functional hole of the base body or the functional hole of the supporting mechanism is S-shaped, circular, elliptical or polygonal.

3. The tire frame according to claim 1, characterized in that: The base can be used in conjunction with the pressure ring. The base connection port is connected to the pressure ring by welding, riveting, bonding, bolt assembly or slot assembly. The base can also be used alone.

4. The tire frame according to claim 1, characterized in that: The end of the fixing groove base joint is provided with a first groove with a first inclination angle, and the first groove is recessed with at least one fixing groove. The end of the fixing protrusion base joint is provided with a second groove with a second inclination angle, and the second groove is protruding outward with at least one fixing protrusion. The fixing groove connects and positions the fixing protrusion.

5. A tire frame according to claim 4, characterized in that: The sum of the first inclination angle and the second inclination angle is 180 degrees.

6. The tire frame according to claim 1, characterized in that: The supporting structures are symmetrically arranged on both sides of the base.

7. The tire frame according to claim 1, characterized in that: The airbag is placed in the space of the support structure symmetrically arranged on both sides of the base.

8. The tire frame according to claim 1, characterized in that: The supporting structure is arranged on one side of the base, and after the two tire frames are spliced on both sides, the supporting structures are symmetrically arranged on both sides of the base.

9. The tire frame according to claim 1, characterized in that: The tire frame has a symmetrical structure.

10. The tire frame according to claim 1, characterized in that: It also includes a functional hole penetrating the support structure, and the outer contour of the functional hole is S-shaped, circular, elliptical or polygonal.

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