阅读说明：本技术 一种仿生非充气轮胎 (Bionic non-pneumatic tire ) 是由 张子峰 付宏勋 李亚龙 李永强 徐同坚 粱学萌 于 2019-11-14 设计创作，主要内容包括：本发明公开一种仿生非充气轮胎,包括胎冠、仿生辐板支撑体、辐板内圈；所述胎冠、仿生辐板支撑体、辐板内圈,按轮胎径向方向由外到内依次排布；所述胎冠包括胎面、冠带层、带束层,按轮胎径向方向由外到内依次排布；所述带束层包括#1带束层和#2带束层,按轮胎径向方向由外到内依次排布；所述仿生辐板支撑体仿袋鼠下肢结构设计；所述仿生辐板支撑体包括仿袋鼠下肢主辐板和支撑副辐板。所述仿生非充气轮胎显著提高非充气轮胎的减震、排水、散热能力,整体质量显著减轻；所述仿生辐板支撑体采用高模量的聚氨酯材料,具有高硬度、耐疲劳、耐切割和绿色环保性能。(The invention discloses a bionic non-pneumatic tire, which comprises a tire crown, a bionic spoke plate support body and a spoke plate inner ring, wherein the tire crown is provided with a tire crown; the tire crown, the bionic spoke plate supporting body and the spoke plate inner ring are sequentially arranged from outside to inside in the radial direction of the tire; the tire crown comprises a tire tread, a cap ply layer and a belt ply layer which are sequentially arranged from outside to inside in the radial direction of the tire; the belt layers comprise a #1 belt layer and a #2 belt layer which are sequentially arranged from outside to inside in the radial direction of the tire; the bionic spoke plate support is designed to simulate the structure of the kangaroo lower limb; the bionic web plate support body comprises a main web plate of the bionic kangaroo lower limb and a support auxiliary web plate. The bionic non-pneumatic tire remarkably improves the shock absorption, water drainage and heat dissipation capabilities of the non-pneumatic tire, and the overall mass is remarkably reduced; the bionic spoke plate support body is made of a high-modulus polyurethane material and has the advantages of high hardness, fatigue resistance, cutting resistance and environmental friendliness.)

1. A bionic non-pneumatic tire is characterized by comprising a tire crown (1), a bionic spoke plate supporting body (2) and a spoke plate inner ring (3), wherein the tire crown (1) consists of a tire tread (11), a cap ply (12) and a belt ply (13); the tire tread (11), the cap ply layer (12) and the belt ply layer (13) are sequentially arranged from outside to inside in the radial direction of the tire; the belt ply (13) comprises a #1 belt ply (13a) and a #2 belt ply (13b), and the belt plies are sequentially arranged from inside to outside in the radial direction of the tire; the bionic spoke plate support body (2) is designed to simulate a kangaroo lower limb structure; the bionic spoke plate support body (2) comprises a bionic kangaroo lower limb main spoke plate (21) and a support auxiliary spoke plate (22).

2. A bionic non-pneumatic tyre as claimed in claim 1, characterized in that in said tread band (1), the tread band (11) is made of rubber material, the cap ply (12) is made of nylon material, and the #1 belt ply (13a) and the #2 belt ply (13b) are made of steel wire.

3. A biomimetic non-pneumatic tire according to claim 1, wherein the biomimetic web support (2) is a unitary structure simulating a kangaroo lower limb.

4. A biomimetic non-pneumatic tire according to claim 1, wherein the biomimetic web support (2) and the web inner (3) are made of high modulus polyurethane material.

5. A bionic non-pneumatic tyre as claimed in claim 1, wherein each bionic web support (2) is arranged as a structural unit in a circular array with an angle of 10 ° between adjacent structural units, and 36 structural units are arranged in a circular array with the tyre axis as the centre.

6. A bionic non-pneumatic tyre as claimed in claim 1, characterised in that said bionic web support (2) has a structure in which the AB, BC, CD, DE lengths are designed according to the ratio of the lengths of the toes, the sole, the calf, the thigh of the kangaroo lower limb, and the BF length is designed according to the specific model of tyre.

7. A bionic non-pneumatic tyre as claimed in claim 1, characterized in that in said bionic web support (2), the angles ∠ ABC, ∠ BCD, ∠ CDE are designed in the same proportion according to the corresponding angles of the toe and sole, the sole and calf, and the calf and thigh of the kangaroo lower limb, and the value of ∠ ABF angle is not less than 90 °.

8. The bionic non-pneumatic tire as claimed in claim 1, wherein in the bionic spoke plate support body (2), the widths of AB, BC, CD and DE are designed according to the width proportion of the toes, the soles, the shanks and the thighs of the lower limbs of the kangaroo, and then the width is adjusted according to the specific model of the tire, and the minimum thickness of AB, BC, CD, DE and BF is not less than 3 mm.

9. A bionic non-pneumatic tyre as claimed in claim 1, characterised in that said tread band (1) and said bionic web support (2) are joined together by means of a compression-moulding vulcanisation process.

10. A biomimetic non-pneumatic tire according to claim 1, wherein each section of the biomimetic web support (2) has a smooth transition therebetween.

Technical Field

The invention relates to a structural design of a tire, in particular to a bionic non-pneumatic tire, and belongs to the field of automobile parts.

Background

The traditional pneumatic tire needs regular tire pressure maintenance, is easy to puncture and leak, and is easy to burst to cause traffic accidents, the pneumatic tire needs to select proper materials to meet the requirements of the tire on multiple aspects of use, the materials do not have excellent environmental protection performance, and in the aspect of military affairs, the traditional pneumatic tire cannot bear the defect of weapon attack, and cannot meet the requirements of people on various use performances of the tire. Therefore, various tire enterprises around the world continuously research new tires, wherein the tire with the most practical revolutionary significance belongs to the design and development application of non-pneumatic tires, so that the design process and design concept of the traditional pneumatic tire are broken through, the driving fuel economy, the operating stability and the smoothness of the automobile are improved, and effectively improves the influence of tire vibration on the running performance of the automobile, at present, the non-pneumatic tire on the market still has the defects of poor damping, bearing, water discharging and heat dissipating effects, and the used materials are unreasonable and hard, the bionic non-pneumatic tire improves the performance, the used materials adopt environment-friendly polyurethane materials, the recyclable tire has great benefits for resource saving and environmental protection, lays a certain foundation for the development and research of future non-pneumatic tires, and enables the development of the tires to move forward in the aspects of intelligence, environmental protection and safety.

The kangaroo has evolved over thousands of years, in the process of the continuous evolution of the long-term living competition in the nature, the kangaroo forms a morphological structure, a simple and efficient control scheme, a reasonable material topology and rich surface texture which are adaptive to the environment, the superstrong adaptive capacity is formed for the natural environment, the research finds that all kangaroos have the same characteristics, namely, the kangaroos have strong and powerful lower limbs, the Crural index (namely 100 x (shank length/thigh length)) of the red kangaroo reaches 202, the index is far higher than that of other mammals, the kangaroo replaces running with jumping and is the highest and farthest mammal, the kangaroo has stability, flexibility and adaptability which are superior to the modern mechanical system due to the leg structure and the motion control scheme of the kangaroo, a flexible toe mechanism model provides a new angle and method for the research of non-pneumatic tires, and the driving moment of each joint is effectively improved by the kangaroo flexible toe mechanism model, the shock and the vibration of step and ground when slowing down kangaroo beat and falling to the ground, consequently have fabulous motion stability, the design that non-pneumatic tire radials supporter was used in this kind of structure application has the same mechanism characteristic, improves the driving fuel economy, handling stability, ride comfort of car, and the effectual tire vibration that has improved, consequently, the structural model of kangaroo low limbs provides the bionic design basis for the improvement of the whole performance of automobile non-pneumatic tire.

Disclosure of Invention

The technical problems to be solved by the invention are as follows: under the common load and running condition of the traditional non-pneumatic tire with the same specification, the stability and the shock absorption performance of the bearing structure of the non-pneumatic tire are improved, the grounding area of the non-pneumatic tire is increased, the grounding pressure distribution uniformity of the non-pneumatic tire is improved, the stress concentration of the tire shoulder of the tire is reduced, and the wear resistance is improved.

The technical scheme adopted by the invention is as follows:

a bionic non-pneumatic tire is characterized by comprising a tire crown, a bionic spoke plate supporting body and a spoke plate inner ring, wherein the tire crown consists of a tire tread, a cap ply and a belt ply; the tire tread, the cap ply layer, #1 belted layer and #2 belted layer are sequentially arranged from inside to outside in the radial direction of the tire; the bionic spoke plate support is designed to simulate the structure of the kangaroo lower limb; the bionic web plate support body comprises a main web plate of the bionic kangaroo lower limb and a support auxiliary web plate.

Furthermore, in the tire crown, the tire surface is made of rubber materials, the cap ply is made of nylon materials, and the #1 belted layer and the #2 belted layer are made of steel wires.

Furthermore, the bionic spoke plate support body is of an integrated structure imitating the lower limbs of the kangaroo.

Furthermore, the bionic spoke plate support body and the spoke plate inner ring are made of high-modulus polyurethane materials.

Furthermore, each bionic spoke plate support body is used as a structural unit, the arrangement mode is annular arrangement, the angle between adjacent structural units is 10 degrees, and 36 structural units are annularly arrayed by taking the axle center of the tire as the circle center.

Furthermore, in the structure of the bionic spoke plate support body, the lengths of AB, BC, CD and DE are designed according to the length proportion of toes, soles, shanks and thighs of the lower limbs of the kangaroo, and the BF length is designed according to the specific model of the tire.

Furthermore, in the bionic spoke plate support, the ∠ ABC, ∠ BCD and ∠ CDE angles are designed in the same proportion according to the corresponding angles of the toes and the soles of the kangaroo lower limbs, the soles and the shanks, and the value of the ∠ ABF angle is not less than 90 degrees.

Furthermore, the width of the bionic spoke plate support body AB, BC, CD and DE is designed according to the width proportion of the toes, the soles, the shanks and the thighs of the lower limbs of the kangaroo, and then the width of the bionic spoke plate support body is adjusted according to the specific model of the tire, wherein the minimum thickness of the AB, BC, CD, DE and BF is not less than 3 mm.

Furthermore, the tyre crown and the bionic spoke plate supporting body are connected together by adopting a method of a compression molding vulcanization process.

Furthermore, smooth transition connection is adopted between each section of the bionic spoke plate support body.

Compared with the prior art, the invention has the beneficial effects that:

(1) the non-pneumatic tire has the advantages that the non-pneumatic tire is high in strength, high in integrity and toughness, the non-pneumatic tire is excellent in shock absorption and bearing performance under the working conditions of different-speed running, the bionic web plate supporting bodies are arranged around the axis in an annular mode, the bionic web plate supporting bodies form cavities with the functions of water drainage, heat dissipation and light weight, the bionic web plate supporting bodies are made of polyurethane elastomers with high modulus, and have the advantages of high hardness, fatigue resistance, high elongation, high strength, high load capacity, excellent shock absorption characteristics, heat resistance, flame resistance, radiation resistance, oil resistance and chemical medicine resistance.

(2) The belt ply layer arranged in the tread of the bionic non-pneumatic tire has the function of buffering impact, is a main stress component of the bionic non-pneumatic tire, and the cap ply layer is used for preventing the movement of the belt ply layer from being inhibited in the running process of the tire, preventing the belt ply layer from being separated in the high-speed running process and keeping the running stability of the bionic non-pneumatic tire.

(3) According to simulation analysis, the ground contact mark of the bionic non-pneumatic tire is similar to a rectangle in shape, the ground contact width is basically kept unchanged along with the increase of load, the ground contact length and the ground contact area are increased, the ground contact area of the bionic non-pneumatic tire in a free rolling state is increased compared with the ground contact area of a traditional pneumatic tire with the same specification, the ground contact area is also increased during acceleration and braking, the ground gripping performance of the bionic non-pneumatic tire is improved, the ground contact distribution uniformity of the non-pneumatic tire is improved, the tire shoulder stress concentration of the tire is reduced, and the wear resistance is improved; the bionic spoke plate support body special structure of the non-pneumatic tire greatly improves the shock absorption characteristic of the non-pneumatic tire.

Drawings

FIG. 1 is a schematic view of a kangaroo lower limb;

FIG. 2 is a schematic view of a bionic non-pneumatic tire;

FIG. 3 is a schematic diagram of a structural unit of a bionic web support;

FIG. 4 is a cross-sectional view of a bionic non-pneumatic tire crown.

Detailed Description

The invention provides a kangaroo-imitating lower limb non-pneumatic tire, which takes 195/55R15 tire as an example, and the invention is further explained by combining the attached drawings and specific embodiments

FIG. 1 shows the lower limb of Kangaroo, AB is the toe, BC is the sole, CD is the calf, and DE is the thigh.

Fig. 2 is a schematic view of a bionic non-pneumatic tire comprising four longitudinal pattern grooves, which can increase drainage capacity and prevent the tire from sideslipping.

FIG. 3 shows a bionic web plate support 2 structure unit, in which BF is an auxiliary support auxiliary web plate 22 capable of increasing the stability and strength of a non-pneumatic tire, each bionic web plate support 2 is used as a structure unit and is arranged in a ring shape, the angle between adjacent structure units is 10 degrees, 36 structure units are arrayed in a ring shape by taking the axis of the tire as the center of a circle, the lengths of AB, BC, CD, DE and BF in the bionic web plate support 2 structure unit are 15mm, 16mm, 45mm, 28mm and 7mm in sequence, the angles of ∠ BCD, ∠ CDE and ∠ ABF are 110 degrees, 125 degrees and 120 degrees, the vertical shortest distance between the A point and the E point is 5mm, the widths of AB, BC, CD, DE and BF are 13mm, 8mm, 5mm, 4mm and 3mm in sequence, smooth transition connection is formed between each section of the bionic web plate 2, and a fillet is arranged at the connection position of the bionic kangaroos lower limb main web plate 21 and the support auxiliary web plate 22 to.

FIG. 4 is a schematic cross-sectional view of a biomimetic non-pneumatic tire crown 1 comprising a cap ply 12 and #1 belt 13a and #2 belt 13 b; the tread 11 is made of a low-modulus rubber material with excellent air tightness, wet skid resistance and wear resistance; the tire crown 1 and the bionic spoke plate supporting body 2 are connected together by a method of a compression molding vulcanization process at proper temperature and time; the spoke plate inner ring 3 and the hub are bonded through polyurethane adhesive.

Through simulation analysis, the comparison between the traditional same-specification pneumatic tire and the non-pneumatic tire is obtained:

①, improved shock absorption, heat dissipation and water drainage characteristics, ② increased contact patch, ③ reduced shoulder stress concentration, ④ improved contact patch uniformity of the non-pneumatic tire.

The examples are preferred embodiments of the present invention, but the present invention is not limited to the embodiments, and any obvious improvements, substitutions or modifications can be made by those skilled in the art without departing from the scope of the present invention.