3D printed biomimetic non-pneumatic tire

Abstract

The application belongs to the technical field of tire manufacturing, and discloses a 3D-printed bionic non-pneumatic tire, which comprises a mounting seat, the outer surface of the mounting seat is fixedly connected with radial spokes, the other end of the radial spokes is fixedly connected with a belt layer, and the radial spokes and the belt layer are attached to form a hollow channel. The radial spokes are designed by adopting bionic honeycomb / radial spoke mechanics, so that the radial bearing strength is ensured, the overall weight of the tire is greatly reduced, the unsprung mass is reduced, and the vehicle handling and endurance are improved. The radial spokes can absorb road impact through elastic deformation, achieve a buffering effect similar to that of a pneumatic tire, avoid the problem of elastic attenuation of the pneumatic tire, and have stable shock absorption performance during long-term use. The hollow channel between the radial spokes and the belt layer forms a natural air duct, which can quickly discharge the heat inside the tire during driving.

Description

Technical Field

[0001] This invention belongs to the field of tire manufacturing technology, specifically a 3D-printed biomimetic non-pneumatic tire. Background Technology

[0002] Non-pneumatic tires refer to tire assemblies that do not require an air pressure maintenance device, rely on an elastic support to bear the vehicle load and achieve cushioning and shock absorption, and have a hollow volume ratio of no less than 50%. They are integrated with the wheel hub / rim and are suitable for various vehicles such as automobiles, construction machinery, industrial vehicles, and motorcycles.

[0003] Currently, pneumatic tires are the mainstream choice in the market due to their superior handling, braking, and traction. However, pneumatic tires have significant drawbacks, such as poor puncture resistance, inability to continue driving after a leak, and the risk of tire blowout. Furthermore, pneumatic tires have complex structures, cumbersome manufacturing processes, and difficulties in disposing of used tires and recycling. As tire safety becomes increasingly important, non-pneumatic tires are gaining popularity due to their advantages of being airless, puncture-resistant, economical, and wear-resistant. However, current non-pneumatic tires are manufactured using injection molding or casting of polyurethane materials, with mold forming as the primary processing method. This results in a simple support structure, long processing cycles, and high costs. Therefore, this patent proposes a 3D-printed biomimetic non-pneumatic tire, greatly increasing the personalization and intelligence of the product's structural design. Summary of the Invention

[0004] The purpose of this invention is to provide a 3D-printed biomimetic non-pneumatic tire to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a 3D-printed biomimetic non-pneumatic tire, comprising a mounting base, radial spokes fixedly connected to the outer surface of the mounting base, a belt layer fixedly connected to the other end of the radial spokes, the radial spokes and the belt layer being bonded together to form a hollow channel, and the number of radial spokes being multiple, with the multiple radial spokes evenly distributed on the surface of the mounting base.

[0006] Preferably, a damping rib is fixedly connected to the outer surface of the mounting base, and the other end of the damping rib is fixedly connected to the inner surface of the belt layer.

[0007] Preferably, the damping ribs form an angle of 20°–30° with the radial spokes, and there are multiple damping ribs, with five damping ribs forming a group, and the multiple groups of damping ribs are evenly distributed on the outer surface of the mounting base.

[0008] Preferably, the mounting base has a mounting hole inside, and the mounting hole is circular in shape.

[0009] Preferably, a crown layer is fixedly connected to the outer surface of the belt layer, and the crown layer is a nylon / polyester fiber cord that is wound around the belt layer circumferentially.

[0010] Preferably, a base adhesive is fixedly connected to the outer surface of the crown band layer, and the base adhesive is made of a thin layer of rubber.

[0011] Preferably, a tread compound is fixedly connected to the outer surface of the base rubber, the outer surface of the tread compound is provided with a biomimetic pattern, the tread compound is made of wear-resistant and tear-resistant special rubber, and the thickness of the tread compound is 10–30 mm.

[0012] Preferably, there are multiple biomimetic patterns, and the multiple biomimetic patterns are evenly distributed on the outer surface of the tread rubber.

[0013] Preferably, a groove is formed between the tread rubber and the biomimetic pattern, and the groove is evenly distributed along the circumference of the tread rubber and spaced apart from the biomimetic pattern.

[0014] The beneficial effects of this invention are as follows: 1. This invention, by setting radial spokes and hollow channels, adopts a biomimetic honeycomb / spoke mechanical design for the radial spokes. While ensuring radial load-bearing strength, it significantly reduces the overall weight of the tire, reduces unsprung mass, and improves vehicle handling and range. The radial spokes can absorb road impacts through elastic deformation, achieving a cushioning effect similar to that of a pneumatic tire, while avoiding the elastic decay problem of pneumatic tires, ensuring stable shock absorption performance over long-term use. The hollow channels between the radial spokes and the belt layer form natural air ducts, which can quickly dissipate heat from inside the tire during driving, solving the defects of poor heat dissipation and easy aging of traditional solid tires, and extending service life.

[0015] 2. By setting damping ribs, this invention can effectively absorb vertical impacts and supplement horizontal damping, achieving all-directional shock absorption of the tire. This effectively alleviates the bumps caused by uneven road surfaces during driving, significantly improves vehicle ride smoothness, reduces the feeling of bumps inside the vehicle, and thus enhances driving comfort. At the same time, it helps stabilize the overall tire structure, reduces stress loss between components, and further extends the tire's service life.

[0016] 3. By setting up a crown layer, a base rubber, and a tread rubber, this invention can effectively constrain the belt layer, suppress centrifugal deformation of the tire at high speeds, and improve high-speed stability and uniformity; the base rubber achieves a firm bond between the crown layer and the tread rubber, reducing heat accumulation; and the tread rubber, with its wear-resistant and tear-resistant properties, extends the tire's service life. The three components work together to ensure the overall structural stability of the tire and driving safety. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic cross-sectional view of the present invention; Figure 3 This is a schematic cross-sectional view of the side of the present invention; Figure 4 This is a schematic diagram of the radial spoke structure of the present invention; Figure 5 This is a schematic diagram of the hollow channel structure of the present invention; Figure 6 This is a schematic diagram of the damping rib structure of the present invention.

[0018] In the diagram: 1. Mounting base; 2. Radial spokes; 3. Belt layer; 4. Hollowed-out channel; 5. Damping ribs; 6. Mounting hole; 7. Crown layer; 8. Base rubber; 9. Tread rubber; 10. Bionic tread pattern; 11. Groove. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] like Figures 1 to 6 As shown, this embodiment of the invention provides a 3D printed biomimetic non-pneumatic tire, including a mounting base 1, radial spokes 2 fixedly connected to the outer surface of the mounting base 1, a belt layer 3 fixedly connected to the other end of the radial spokes 2, the radial spokes 2 and the belt layer 3 are bonded together to form a hollow channel 4, the number of radial spokes 2 is multiple, and the multiple radial spokes 2 are evenly distributed on the surface of the mounting base 1.

[0021] The radial spokes 2 adopt a biomimetic honeycomb / spoke mechanical design, which significantly reduces the overall weight of the tire and the unsprung mass while ensuring radial load-bearing strength, thereby improving vehicle handling and range. The radial spokes 2 can absorb road impacts through elastic deformation, achieving a cushioning effect similar to that of a pneumatic tire, while avoiding the elastic decay problem of pneumatic tires, ensuring stable shock absorption performance over long-term use. The hollow channels 4 between the radial spokes 2 and the belt layer 3 form a natural air duct, which can quickly dissipate heat from the inside of the tire during driving, solving the defects of poor heat dissipation and easy aging of traditional solid tires, and extending service life.

[0022] The outer surface of the mounting base 1 is fixedly connected with a damping rib 5, and the other end of the damping rib 5 is fixedly connected to the inner surface of the belt layer 3.

[0023] The design of the damping rib 5 mainly undertakes vertical buffering, while also supplementing horizontal damping buffering, achieving all-directional shock absorption, greatly improving ride smoothness, and reducing the feeling of bumps inside the vehicle.

[0024] Among them, the damping ribs 5 form an angle of 20°–30° with the radial spokes 2. There are multiple damping ribs 5, with five damping ribs 5 forming a group. Multiple groups of damping ribs 5 are evenly distributed on the outer surface of the mounting base 1.

[0025] This design allows the damping ribs 5 to distribute the force evenly, enhancing the omnidirectional shock absorption effect, reducing stress loss in individual components, and improving tire structural stability, thus ensuring smoothness and safety during driving.

[0026] The mounting base 1 has a mounting hole 6 inside, and the mounting hole 6 is circular in appearance.

[0027] The design of mounting hole 6 makes it easy to install the tire onto the car.

[0028] Among them, the outer surface of the belt layer 3 is fixedly connected to the crown layer 7, which is a nylon / polyester fiber cord and is wound around the belt layer 3 in the circumference.

[0029] The crown layer 7 serves to constrain the belt layer 3, suppress high-speed centrifugal deformation, and improve high-speed stability and uniformity.

[0030] Among them, the outer surface of the crown layer 7 is fixedly connected with a base adhesive 8, which is made of a thin layer of rubber.

[0031] The design of the base rubber 8 has the functions of low heat generation and high adhesion, while also serving to buffer impact, transfer stress, and reduce internal heat accumulation.

[0032] Among them, the outer surface of the base rubber 8 is fixedly connected to the tread rubber 9, the outer surface of the tread rubber 9 is provided with biomimetic texture 10, the tread rubber 9 is made of wear-resistant and tear-resistant special rubber, and the thickness of the tread rubber 9 is 10–30 mm.

[0033] This design enhances the tire's tread wear resistance and tear resistance, resisting road wear and impact. The 10–30 mm thickness ensures cushioning while avoiding excessive weight gain, extending tire life and ensuring structural stability during driving.

[0034] Among them, there are multiple biomimetic patterns 10, which are evenly distributed on the outer surface of the tread rubber 9.

[0035] The biomimetic tread pattern 10 design increases the contact friction between the tire and the ground, providing stable grip on both dry and wet roads as well as unpaved roads, thus improving the safety of vehicle starting, braking, and steering.

[0036] Among them, a groove 11 is formed between the tread rubber 9 and the biomimetic pattern 10. The groove 11 is evenly distributed around the tread rubber 9 and is spaced apart from the biomimetic pattern 10.

[0037] The design of Groove 11 can quickly drain water from the tire surface, preventing hydroplaning, while enhancing lateral anti-skid ability and improving stability during high-speed driving and cornering.

[0038] Working principle and usage process: This tire is a 3D printed integrated structure. It is fixedly assembled with the vehicle wheel axle through the circular mounting hole 6 of the mounting base 1. It eliminates the need for an inflation device and directly replaces the traditional pneumatic tire. When working, the mounting base 1 evenly transfers the load to the radial spokes 2. Its biomimetic honeycomb / spoke structure achieves radial load bearing and impact buffering through elastic deformation. The hollow channel 4 forms a natural air channel as the tire rotates, quickly dissipating internal heat and preventing material aging.

[0039] The damping ribs 5, which form an angle of 20°–30° with the radial spokes 2, simultaneously achieve vertical and horizontal buffering, providing omnidirectional shock absorption and uniform force distribution, reducing stress loss in components. The outer crown layer 7 circumferentially wraps around and constrains the belt layer 3, suppressing high-speed centrifugal deformation. The base rubber 8 firmly bonds the crown layer and the tread rubber 9, generating low heat and providing buffering force transmission. The tread rubber 9 uses wear-resistant and tear-resistant special rubber, with a thickness of 10–30 mm to enhance the tread's wear resistance and tear resistance, resisting road wear and impact, maintaining the buffering effect while avoiding excessive weight gain, extending service life and ensuring structural stability.

[0040] The biomimetic tread pattern 10 increases ground friction, providing stable grip on dry / wet / unpaved roads; the grooves 11 quickly drain water and prevent sideslip, improving stability in corners and at high speeds. This tire requires no inflation maintenance, eliminating the risk of tire blowouts and leaks. Its tightly integrated structure makes it suitable for various vehicles, ensuring stable performance under complex road conditions. Furthermore, the tires are recyclable, combining practicality and economy.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A 3D-printed biomimetic non-pneumatic tire, comprising a mounting base (1), characterized in that: The outer surface of the mounting base (1) is fixedly connected with radial spokes (2), and the other end of the radial spokes (2) is fixedly connected with a belt layer (3). The radial spokes (2) and the belt layer (3) are bonded together to form a hollow channel (4). There are multiple radial spokes (2), and the multiple radial spokes (2) are evenly distributed on the surface of the mounting base (1).

2. The 3D-printed biomimetic non-pneumatic tire according to claim 1, characterized in that: The outer surface of the mounting base (1) is fixedly connected to a damping rib (5), and the other end of the damping rib (5) is fixedly connected to the inner surface of the belt layer (3).

3. The 3D-printed biomimetic non-pneumatic tire according to claim 2, characterized in that: The damping ribs (5) form an angle of 20°–30° with the radial spokes (2). There are multiple damping ribs (5), with five damping ribs (5) forming a group. Multiple groups of damping ribs (5) are evenly distributed on the outer surface of the mounting base (1).

4. A 3D-printed biomimetic non-pneumatic tire according to claim 1, characterized in that: The mounting base (1) has a mounting hole (6) inside, and the mounting hole (6) is circular in appearance.

5. A 3D-printed biomimetic non-pneumatic tire according to claim 1, characterized in that: The outer surface of the belt layer (3) is fixedly connected to the crown layer (7), which is a nylon / polyester fiber cord and is wound around the belt layer (3) circumferentially.

6. A 3D-printed biomimetic non-pneumatic tire according to claim 5, characterized in that: The outer surface of the crown layer (7) is fixedly connected with a base adhesive (8), which is made of a thin layer of rubber.

7. A 3D-printed biomimetic non-pneumatic tire according to claim 6, characterized in that: The outer surface of the base rubber (8) is fixedly connected to the tread rubber (9), the outer surface of the tread rubber (9) is provided with biomimetic texture (10), the tread rubber (9) is made of wear-resistant and tear-resistant special rubber, and the thickness of the tread rubber (9) is 10–30 mm.

8. A 3D-printed biomimetic non-pneumatic tire according to claim 7, characterized in that: The number of biomimetic patterns (10) is multiple, and the multiple biomimetic patterns (10) are evenly distributed on the outer surface of the tread rubber (9).

9. A 3D-printed biomimetic non-pneumatic tire according to claim 7, characterized in that: A groove (11) is formed between the tread rubber (9) and the biomimetic pattern (10). The groove (11) is evenly distributed around the tread rubber (9) and spaced apart from the biomimetic pattern (10).

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