Combined bionic non-pneumatic tire with strong vibration reduction and low wear performance

Abstract

The invention relates to a combined bionic non-pneumatic tire with strong vibration reduction and low wear performance, and belongs to the field of tires. The non-pneumatic tire comprises a tire crown, a bionic frog leg supporting spoke structure, a hub and a tire pattern structure of bionic clam shell grooves. The bionic frog leg spoke structure is composed of spoke plate supporting bodies which are distributed in the circumferential direction of the rim at equal intervals. The bionic radial plate supporting body is designed according to the strong damping stress characteristics of thighs, middle legs and shanks of a frog in frog leaping landing; according to the bionic tread pattern structure, bionic tread pattern design is carried out according to a low-abrasion groove structure formed when a clam shell is impacted by seawater. According to the invention, the problems of poor bearing capacity and high abrasion of the existing non-pneumatic tire are solved, and a new idea and method are provided for the design of the high-vibration-reduction low-abrasion non-pneumatic tire.

Description

Technical Field

[0001] The invention relates to the technical field of tires, in particular to a combined bionic non-pneumatic tire with strong vibration reduction and low wear performance. Background Art

[0002] The dynamic characteristics of a vehicle during driving are mainly determined by the contact between the tire and the road surface, so tires are crucial to driving safety. Traditional pneumatic tires have some inevitable safety problems due to their pneumatic structure, such as easy air leakage, unstable tire pressure, and easy tire blowout after puncture, which bring great hidden dangers. In response to these shortcomings, non-pneumatic tires have become a new development direction. This type of tire uses elastic fillers or supports instead of traditional tire pressure, and there are no problems such as air leakage, tire blowout, and insufficient tire pressure, which greatly improves driving safety. In addition, non-pneumatic tires have greater flexibility and choice in structural design, which can effectively make up for the design defects of traditional pneumatic tires.

[0003] The present invention utilizes the characteristics of frog legs such as bearing elastic force, extracts the thigh, mid-leg and calf structures of frog legs and conducts muscle analysis to obtain bionic design of spokes, and utilizes the low-wear groove structure formed by the impact of seawater on the clam shell to extract the characteristics of the surface structure of the clam shell to design a bionic tread pattern. Summary of the invention

[0004] Purpose of the invention: In view of the deficiencies in the prior art, the present invention provides a combined bionic non-pneumatic tire with strong vibration reduction and low wear performance, whose supporting structure has excellent elastic bearing capacity and vibration reduction capacity, and the tread has better wear resistance, effectively reducing the wear of the road surface on the tread.

[0005] Technical solution: A combined bionic non-pneumatic tire with strong vibration reduction and low wear performance, including a crown 1, a bionic frog-leg supporting spoke structure 2, and a hub 3. The bionic frog-leg spoke structure 2 includes a spoke plate support body evenly distributed along the circumferential direction of the hub 3, and the spoke plate support body is formed according to the bionics of the frog leg. The tread pattern 4 can convert the sliding friction resistance of the worn tread into rolling friction resistance to a certain extent by means of the groove structure of the clam shell, so as to design a ribbed nodule bionic tread structure based on the bionic prototype.

[0006] The tread pattern 4 is symmetrical along the center line of the auxiliary longitudinal groove 1-3a; the tread pattern 4 is divided into five patterns 1-1, 1-2, 1-3, 1-4 and 1-5 by four main longitudinal grooves 1-6, 1-7, 1-8 and 1-9 with the same width of 8-9mm; the auxiliary longitudinal groove 1-2a in the pattern 1-2 is located in the middle of the main grooves 1-6 and 1-7 and has a width of 6-7mm; the auxiliary transverse pattern 1-2b in the pattern 1-2 is at an angle of 60° with the main groove 1-7, Its width is 8-9mm; the auxiliary longitudinal grooves 1-2a and the auxiliary transverse pattern 1-2b constitute the plaque ribbed pattern in the pattern 1-2; the auxiliary longitudinal grooves 1-3c in the pattern 1-3 are located in the middle of the main grooves 1-7 and 1-8, and have a width of 6-7mm; the auxiliary transverse grooves 1-3b in the pattern 1-3 form an angle of 90° with the main longitudinal grooves, and the auxiliary longitudinal grooves 1-3a and the auxiliary transverse pattern 1-3b together constitute the plaque ribbed pattern in the pattern 1-3.

[0007] The spoke support body 2 is composed of an inner left support surface 2-1 and an inner right support surface 2-2 formed by the shape of a bionic frog thigh tendon, a middle support surface 2-3 formed by a bionic middle leg, an outer left support surface 2-6 and an outer right support surface 2-4 formed by a bionic calf and flipper, and a crossbeam support surface 2-5 is provided between the outer left support surface 2-6 and the outer right support surface 2-4.

[0008] The inner left spoke 2-1 and the inner right spoke 2-2 in the spoke plate support body have an arc-shaped smooth transition to form an arc between point 2-s and point 2-r; the inner left spoke 2-1 and the middle spoke 2-3 have a smooth transition to form an arc between point 2-b and point 2-c; the inner right support surface 2-2 and the middle support surface 2-3 have a smooth transition to form an arc between point 2-o and point 2-n; the middle spoke 2-3 and the outer left spoke 2-6 are on the same straight line; the middle spoke 2-3 and the outer right spoke 2-4 are connected in an arc-shaped smooth connection to form an arc between point 2-m and point 2-1; the outer left spoke 2-6 and the outer right spoke 2-4 are smoothly connected through the crossbeam 2-5 to form arcs between point 2-f and point 2-g, and between point 2-h and point 2-i.

[0009] The arc formed by points 2-o and 2-n on the spoke support body 2 has a diameter of two-fifths of the spoke height; the arc formed by points 2-b and 2-c has a diameter of two-fifths of the spoke height; the arc formed by points 2-s and 2-r has a diameter equal to the width of a single spoke; the arc formed by points 2-f and 2-g and the arc formed by points 2-h and 2-i have a diameter equal to the width of a single spoke.

[0010] The inner left spoke 2-1 and the inner right spoke 2-2 in the spoke plate support body intersect with the outer side of the hub 3 at four points 2-a, 2-t, 2-q and 2-p; the outer left spoke 2-6 and the outer right spoke 2-4 intersect with the inner side of the crown 1 at four points 2-d, 2-e, 2-j and 2-k; the angle between the straight line connecting the point 2-a and the point 2-p and the straight line connecting the point 2-a and the point 2-b is 45°; the angle between the straight line connecting the point 2-a and the point 2-p and the straight line connecting the point 2-p and the point 2-o is 120°; The angle between the straight line connecting point 2-c and point 2-d and the straight line connecting point 2-d and point 2-k is 60°; the angle between the straight line connecting point 2-l and point 2-k and the straight line connecting point 2-d and point 2-k is 60°; the line between point 2-e and point 2-f, the line between point 2-i and point 2-j, and the line between point 2-g and point 2-h are respectively compared to point 2-u and point 2-v; the horizontal distance between point 2-u and point 2-v is one third of the horizontal distance between point 2-e and point 2-j. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A schematic diagram of the three-dimensional structure of the present invention;

[0012] Figure 2 A front view of the three-dimensional structure of the present invention;

[0013] Figure 3 An exploded view of the present invention;

[0014] Figure 4 A schematic diagram of the support structure of the present invention;

[0015] Figure 5 A cross-sectional view of the support structure of the present invention;

[0016] Figure 6 The support line segment relationship structure diagram of the present invention;

[0017] Figure 7 The present invention is based on Figure 5 A partial enlarged view of part A;

[0018] Figure 8 Schematic diagram of the crown structure of the text page;

[0019] Fig. 9 A plan view of the tread pattern structure of the present invention;

[0020] Fig.10 The support body of the present invention is based on the bionic evolution diagram of the frog hind limb muscles;

[0021] Fig.11 The tread pattern of the present invention is based on the bionic evolution diagram of the clam shell. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments:

[0023] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a combined bionic non-pneumatic tire with strong vibration reduction and low wear performance, the non-pneumatic tire includes a crown 1, a bionic frog-leg supporting spoke structure 2, and a wheel hub 3. The characteristics are as follows: the inner surface of the crown 1 is connected to the outer surface of the frog-leg supporting spoke structure 2, the inner surface of the bionic frog-leg spoke structure is connected to the outer surface of the wheel hub 3, the crown 1 includes a tread pattern 4; the bionic frog-leg spoke structure 2 includes all spoke plate supports evenly distributed along the circumferential direction of the wheel hub 3; the spoke plate supports are bionically formed according to the shape of the frog leg; the crown includes a tread pattern 4, which is divided into five patterns of 1-1, 1-2, 1-3, 1-4 and 1-5 by four main longitudinal grooves 1-6, 1-7, 1-8 and 1-9.

[0024] like Figure 8 and Fig. 9 The tread pattern 4 is symmetrical along the center line of the auxiliary longitudinal groove 1-3a; the tread pattern 4 is divided into five patterns 1-1, 1-2, 1-3, 1-4 and 1-5 by four main longitudinal grooves 1-6, 1-7, 1-8 and 1-9 with the same width of 8-9 mm; the auxiliary longitudinal groove 1-2a in the pattern 1-2 is located in the middle of the main grooves 1-6 and 1-7, and its width is 6-7 mm; the auxiliary transverse pattern 1-2b in the pattern 1-2 is 60° to the main groove 1-7 ° angle, and its width is 8-9mm; the auxiliary longitudinal grooves 1-2a and the auxiliary transverse patterns 1-2b constitute the patchy diamond pattern in the pattern 1-2; the above structure forms a ribbed nodule tread pattern. When the car is running, the wall fluid velocity has an obvious downward trend near the ribbed groove structure, and the ribbed nodule surface structure shows a smaller pressure difference resistance, which can reduce the friction resistance in the two-phase flow environment, and can convert the sliding friction resistance into rolling friction resistance, thereby reducing the wear of the road on the tire.

[0025] like Figure 5The spoke support body 2 shown is composed of an inner left support surface 2-1 and an inner right support surface 2-2 formed by the shape of a bionic frog thigh tendon, a middle support section surface 2-3 formed by a bionic middle leg, and an outer left support surface 2-4 and an outer right support surface 2-6 formed by a bionic calf fin, and a crossbeam support surface 2-5 is provided between the outer left support surface 2-4 and the outer right support surface 2-6; the inner left spoke 2-1 and the inner right spoke 2-2 have an arc-shaped smooth transition to form an arc between point 2-s and point 2-r; the inner left spoke 2-1 and the middle spoke 2-3 have a smooth transition to form an arc between point 2-b and point 2-c; the inner right spoke 2-1 and the middle spoke 2-3 have a smooth transition to form an arc between point 2-b and point 2-c; the inner right spoke 2-2 There is a smooth transition between the supporting surface 2-2 and the middle supporting surface 2-3, forming an arc between point 2-o and point 2-n; the middle spoke 2-3 and the outer left spoke 2-6 are on the same straight line; the middle spoke 2-3 and the outer right spoke 2-4 are smoothly connected in an arc shape, forming an arc between point 2-m and point 2-1; the outer left spoke 2-6 and the outer right spoke 2-4 are smoothly connected through the crossbeam 2-5, forming arcs between point 2-f and point 2-g, and between point 2-h and point 2-i. The spoke plate support body of the bionic frog leg is more representative of the force of the frog leg, and the configuration of the bionic support body can achieve a stronger characteristic of bearing elastic force.

[0026] like Figure 6 The arc with points 2-o and 2-n as endpoints on the spoke support body 2 shown in the figure has a circle whose diameter accounts for two-fifths of the spoke height; the arc with points 2-b and 2-c as endpoints has a circle whose diameter accounts for two-fifths of the spoke height; the arc with points 2-s and 2-r as endpoints has a circle whose diameter is equal to the width of a single spoke; the arc with points 2-f and 2-g as endpoints and the arc with points 2-h and 2-i as endpoints have a circle whose diameter is equal to the width of a single spoke, thereby imitating the muscular hind legs of a frog.

[0027] like Figure 6 and 7 The inner left spoke 2-1 and the inner right spoke 2-2 in the spoke plate support body intersect with the outer side of the hub 3 at four points 2-a, 2-t, 2-q and 2-p; the outer left spoke 2-6 and the outer right spoke 2-4 intersect with the inner side of the crown 1 at four points 2-d, 2-e, 2-j and 2-k; the angle between the straight line connecting point 2-a and point 2-p and the straight line connecting point 2-a and point 2-b is 45°; the angle between the straight line connecting point 2-a and point 2-p and the straight line connecting point 2-p and point 2-o is 120°; the angle between the straight line connecting point 2-c and point 2-d and the straight line connecting point 2-d and point 2-k is 60°; the angle between the straight line connecting point 2-l and point 2-k and the straight line connecting point 2-d and point 2-k is 60°, which is the optimal solution for the joint angle of the frog's hind limbs.

[0028] like Figure 7 As shown, the line between point 2-e and point 2-f, the line between point 2-i and point 2-j, and the line between point 2-g and point 2-h intersect at point 2-u and point 2-v respectively; the horizontal distance between point 2-u and point 2-v is one third of the horizontal distance between point 2-e and point 2-j. This part is the simulated support structure obtained by optimizing the structure of the frog's calf and flipper.

[0029] like Fig.10 As shown in the figure, with hundreds of millions of years of natural selection, the frog's own skeletal structure and muscle drive mode determine its jumping mode; the muscle distribution, bone shape and jumping characteristics of the frog's hind legs are of vital importance to the design of the frog leg-like wheel hub support structure. If the wheel hub support structure only refines the frog's musculoskeletal characteristics, directly using such a structural shape may not be able to completely transfer the bearing performance of the frog legs to the wheel hub support body; therefore, by extracting the frog's hind leg muscles and bones, analyzing its force characteristics, joint structure and movement mode, optimizing the hind leg parameters, simplifying and increasing some support surfaces, and obtaining a wheel hub support body with strong vibration reduction that meets the performance of non-pneumatic tires; through bionic experiments, compared with the existing non-pneumatic tire support structure, it is concluded that the frog leg bionic vibration reduction support structure can significantly improve the vibration reduction effect and enhance the overall performance of the tire.

[0030] like Fig.11 As shown, under the magnification of the microscope system, the surface morphology structure of the clam shell can be clearly seen, among which the middle edge of the clam shell presents a regular ridged groove structure; in the fluid mechanics experiment, the increase in pressure difference resistance of the ribbed nodule bionic surface structure is significantly smaller than the decrease in friction resistance; through the velocity vector, velocity gradient, shear stress and turbulent kinetic energy of the ribbed nodule bionic surface structure near the wall, it is found that the "small vortex" inside the ribbed groove can convert the sliding friction resistance on the surface of the structure into rolling friction resistance; through comparative experimental analysis with the existing non-pneumatic tire surface texture, it is concluded that the bionic structure can not only reduce the friction coefficient, but also reduce the noise of the tire during driving, which further verifies its superior low friction loss performance.

[0031] The above description is only a preferred embodiment of the present invention and does not constitute any other form of limitation to the present invention. Any modification or variation made based on the technical essence of the present invention still falls within the scope of protection of the present invention.

Claims

1. A combined bionic non-pneumatic tire with strong vibration reduction and low wear performance, the non-pneumatic tire comprises a crown 1, a bionic frog-leg supporting spoke structure 2, and a hub 3, characterized in that: The inner surface of the tire crown 1 is connected to the outer surface of the frog-leg supporting spoke structure 2, and the inner surface of the bionic frog-leg spoke structure is connected to the outer surface of the spoke 3; the tire crown 1 includes a tread pattern 4; the bionic frog-leg spoke structure 2 includes a spoke plate support body evenly distributed along the circumferential direction of the hub 3; the spoke support body is bionically formed according to the shape of a frog leg; the tire crown includes a tread pattern 4, which is divided into five patterns of 1-1, 1-2, 1-3, 1-4 and 1-5 by four main longitudinal grooves 1-6, 1-7, 1-8 and 1-9.

2. The combined bionic non-pneumatic tire with strong vibration reduction and low wear performance according to claim 1, characterized in that: The tread pattern 4 is symmetrical along the center line of the auxiliary longitudinal groove 1-3a; the tread pattern 4 is divided into five patterns 1-1, 1-2, 1-3, 1-4 and 1-5 by four main longitudinal grooves 1-6, 1-7, 1-8 and 1-9 with the same width of 8-9mm; the auxiliary longitudinal groove 1-2a on the pattern 1-2 is located in the middle of the main grooves 1-6 and 1-7, and its width is 6-7mm; the auxiliary transverse pattern 1-2b in the pattern 1-2 is at an angle of 60° with the main groove 1-7 , and its width is 8-9mm; the auxiliary longitudinal grooves 1-2a and the auxiliary transverse pattern 1-2b constitute the plaque ribbed pattern in the pattern 1-2; the auxiliary longitudinal grooves 1-3c in the pattern 1-3 are located right between the main grooves 1-7 and 1-8, and their width is 6-7mm; the auxiliary transverse grooves 1-3b in the pattern 1-3 form an angle of 90° with the main longitudinal grooves, and the auxiliary longitudinal grooves 1-3a and the auxiliary transverse pattern 1-3b together constitute the plaque ribbed bionic structure in the pattern 1-3.

3. The combined bionic non-pneumatic tire with strong vibration reduction and low wear performance according to claim 1, characterized in that: The spoke support body 2 is composed of an inner left support surface 2-1 and an inner right support surface 2-2 formed by the shape of a bionic frog thigh tendon, a middle support surface 2-3 formed by a bionic middle leg, an outer left support surface 2-6 and an outer right support surface 2-4 formed by a bionic calf and flipper, and a crossbeam support surface 2-5 is provided between the outer left support surface 2-6 and the outer right support surface 2-4.

4. The combined bionic non-pneumatic tire with strong vibration reduction and low wear performance according to claim 3 is characterized in that: The inner left spoke 2-1 and the inner right spoke 2-2 have an arc-shaped smooth transition to form an arc between point 2-s and point 2-r; the inner left spoke 2-1 and the middle spoke 2-3 have a smooth transition to form an arc between point 2-b and point 2-c; the inner right support surface 2-2 and the middle support surface 2-3 have a smooth transition to form an arc between point 2-o and point 2-n; the middle spoke 2-3 and the outer left spoke 2-6 are on the same straight line; the middle spoke 2-3 and the outer right spoke 2-4 are connected in an arc-shaped smooth connection to form an arc between point 2-m and point 2-1; the outer left spoke 2-6 and the outer right spoke 2-4 are smoothly connected through the crossbeam 2-5 to form arcs between point 2-f and point 2-g, and between point 2-h and point 2-i.

5. The combined bionic non-pneumatic tire with strong vibration reduction and low wear performance according to claim 4 is characterized in that: The arc formed by points 2-o and 2-n on the spoke plate support body has a diameter of two-fifths of the spoke height; the arc formed by points 2-b and 2-c has a diameter of two-fifths of the spoke height; the arc formed by points 2-s and 2-r has a diameter equal to the width of a single spoke; the arc formed by points 2-f and 2-g and the arc formed by points 2-h and 2-i have a diameter equal to the width of a single spoke.

6. According to claim 5, a combined bionic non-pneumatic tire with strong vibration reduction and low wear performance is characterized by: The inner left spoke 2-1 and the inner right spoke 2-2 intersect with the outer side of the hub 3 at four points 2-a, 2-t, 2-q and 2-p; the outer left spoke 2-6 and the outer right spoke 2-4 intersect with the inner side of the crown 1 at four points 2-d, 2-e, 2-j and 2-k.

7. The combined bionic non-pneumatic tire with strong vibration reduction and low wear performance according to claim 6 is characterized in that: The angle between the straight line connecting point 2-a and point 2-p and the straight line connecting point 2-a and point 2-b is 45°; the angle between the straight line connecting point 2-a and point 2-p and the straight line connecting point 2-p and point 2-o is 120°; the angle between the straight line connecting point 2-c and point 2-d and the straight line connecting point 2-d and point 2-k is 60°; the angle between the straight line connecting point 2-l and point 2-k and the straight line connecting point 2-d and point 2-k is 60°.

8. The combined bionic non-pneumatic tire with strong vibration reduction and low wear performance according to claim 5 is characterized in that: The connecting line between point 2-e and point 2-f, the connecting line between point 2-i and point 2-j, and the connecting line between point 2-g and point 2-h intersect at point 2-u and point 2-v respectively; the horizontal distance between point 2-u and point 2-v is one third of the horizontal distance between point 2-e and point 2-j.

Images