阅读说明：本技术 一种椭圆总承体结构的非充气轮胎 (Non-pneumatic tire with oval bearing body structure ) 是由 付宏勋 张子峰 张宇 李亚龙 谭迪 陈小霞 于 2019-11-22 设计创作，主要内容包括：本发明具体为一种椭圆总承体结构的非充气轮胎,包括胎冠部(1)、椭圆总承体(2)、轮辋结合圈(3)；所述胎冠部(1)由近地侧向内依次包括胎面(1-1)、胎面胶(1-2)、缓冲层(1-3)和胎体帘布层(1-4)；所述椭圆总承体(2)沿轮胎径向分为上层结构(2-1)、中层结构(2-2)、下层结构(2-3),每层结构均由横向和纵向两个椭圆结构构成,纵向椭圆结构位于横向椭圆结构内且纵向椭圆结构的长轴和横向椭圆结构的短轴重合。本发明所述一种椭圆总承体结构的非充气轮胎中的所述椭圆总承体(2)可以充分吸收所述胎冠部(1)受到的冲击力并将载荷均匀分布,减少轮胎受力点产生的径向变形,因此使非充气轮胎具有较好的缓冲性和耐久性。(The invention particularly relates to a non-pneumatic tire with an oval general bearing body structure, which comprises a tire crown part (1), an oval general bearing body (2) and a rim combination ring (3); the tire crown part (1) sequentially comprises a tire tread (1-1), a tire tread rubber (1-2), a buffer layer (1-3) and a tire body ply (1-4) from the ground side to the inside; the oval bearing body (2) is divided into an upper layer structure (2-1), a middle layer structure (2-2) and a lower layer structure (2-3) along the radial direction of the tire, each layer structure is composed of a transverse oval structure and a longitudinal oval structure, the longitudinal oval structure is positioned in the transverse oval structure, and the long axis of the longitudinal oval structure is coincided with the short axis of the transverse oval structure. The oval bearing body (2) in the non-pneumatic tire with the oval bearing body structure can fully absorb the impact force applied to the crown part (1), uniformly distribute the load and reduce the radial deformation generated by the stress point of the tire, so that the non-pneumatic tire has better buffering performance and durability.)

1. A non-pneumatic tire with an oval overall bearing body structure is characterized in that the tire comprises a crown part (1), an oval overall bearing body (2) and a rim joint ring (3) from the near-ground side of the tire inwards in the radial direction of the tire; the tire crown part (1) sequentially comprises a tire tread (1-1), a tire tread rubber (1-2), a buffer layer (1-3) and a tire body ply (1-4) from outside to inside along the radial direction of the tire; the oval general bearing body (2) is sequentially divided into an upper layer structure (2-1), a middle layer structure (2-2) and a lower layer structure (2-3) along the radial direction of the tire, the upper layer structure (2-1) is combined with the rim combination ring (3), and the lower layer structure (2-3) is combined with the tire crown part (1); the rim joint ring (3) is positioned between the oval general bearing body (2) and the rim, and the structure fixes the tire on the rim.

2. The non-pneumatic tire with the oval overall bearing body structure as claimed in claim 1, wherein the oval overall bearing body (2) is divided into an upper layer structure (2-1), a middle layer structure (2-2) and a lower layer structure (2-3), each layer of unit structures are equal, a proportional relation exists between each layer of structure, the lower layer structure (2-3) occupies a smaller size proportion than 1/2 of the oval overall bearing body (2), and the upper layer structure (2-1) occupies a smaller size proportion than 1/4 of the oval overall bearing body (2).

3. A non-pneumatic tyre with an oval overall structure according to claim 1, said oval overall structure (2) being arranged according to one of its cells in an annular array, one cell of each layer occupying an angle of 20 ° in the annular array of the layer.

4. The non-pneumatic tire of claim 1 wherein the oval structure of each layer has a longitudinal extent with the major axis in the radial direction of the tire and a transverse extent with the major axis perpendicular to the radial direction of the tire.

5. A non-pneumatic tire having an oval overall body structure as in claim 1, wherein the longitudinally disposed ellipses of each layer are located within the transversely disposed ellipses of the layer, and the major axes of the longitudinally disposed ellipses and the minor axes of the transversely disposed ellipses of the layer are coincident and of equal length.

6. Non-pneumatic tyre of oval overall bearing structure according to claim 1, said oval overall bearing (2) structure being made by casting of polyurethane material.

7. Oval assembly (2) according to claim 1, said crown portion (1) and said rim coupling ring (3) being joined together by a lamination and vulcanization process.

Technical Field

The invention belongs to the technical field of tires, particularly relates to a non-pneumatic tire, and particularly relates to a non-pneumatic tire with an oval general bearing body structure.

Background

The current tire category is classified into a pneumatic tire and a non-pneumatic tire. Pneumatic tires are currently being used more widely because of their "four low" advantages, namely low energy loss on the road, low vertical stiffness, low contact pressure and low mass. The pneumatic tire supports the crown part by sealing compressed air with rubber, and the problems of insufficient tire pressure, breakage and air leakage or tire burst can occur in use, so that the vehicle cannot run.

Non-pneumatic tires use solid fillers instead of compressed air, thus avoiding the above problems and also having the advantage of being maintenance-free, runflat. However, a general non-pneumatic tire has poor cushioning properties, is likely to bump when running on a bad road surface, and generates a large running resistance due to a large longitudinal deformation during running, resulting in a reduction in both comfort and economy. There is therefore a need for improvements to existing non-pneumatic tires to address the above-mentioned problems.

Through the stress condition of the egg, the fact that the eggshell is thin and can bear a large force is found, and the reason is that the arch structure of the eggshell effectively avoids the stress concentration phenomenon. When the bridge deck of the Zhao state bridge is stressed, the arched bridge deck has the characteristic of uniform stress, and the structure of the bridge is prevented from being damaged due to overlarge stress at one point. The stress-dispersive characteristics can be applied to non-pneumatic tire designs, and the elliptical structure is now applied to non-pneumatic tire designs, with corresponding improvements to non-pneumatic tires.

Disclosure of Invention

By understanding the above problems, the present invention provides a non-pneumatic tire with an oval overall structure, which can solve the above problems.

The non-pneumatic tire with the oval main bearing body structure is sequentially divided into a tire crown part, an oval main bearing body and a rim combination ring from outside to inside along the radial direction.

The tire crown part is sequentially provided with a tread with patterns, tread rubber, a buffer layer and a tire body cord fabric layer from the ground side inwards along the radial direction of the tire; the tread band bonds the tread and the structure below the tread together.

The elliptical bearing body is sequentially divided into an upper layer structure, a middle layer structure and a lower layer structure along the radial direction of the tire, each layer of structure is the same, the sizes of the layers are in a certain proportion, and each layer is arranged according to one of the units in an annular array mode.

Each layer of elliptical structure of the elliptical bearing body is divided into a longitudinal distribution mode that the major axis of the elliptical bearing body is distributed along the radial direction of the tire and a transverse distribution mode that the major axis is vertical to the radial direction of the tire: the transverse distribution ellipse minor axis is along the radial direction of the tire, and the major axis of the transverse distribution ellipse minor axis is vertical to the radial direction of the tire; the longitudinal ellipse is positioned inside the transverse ellipse, and the length of the long axis of the longitudinal ellipse is equal to that of the short axis of the transverse ellipse and is coincident with that of the short axis of the transverse ellipse.

The upper layer structure, the middle layer structure and the lower layer structure of the oval bearing body have the following proportional relation: the lower layer structure occupies 1/2 the size ratio of which is less than the size of the oval overall bearing body structure, and the upper layer structure occupies 1/4 the size ratio of the oval overall bearing body structure.

The angular value occupied by each unit structure of each layer in the elliptical general bearing body structure in the annular array distribution of the layer is 20 degrees.

The oval bearing body is made of polyurethane materials in a pouring mode, a formed space structure has good elasticity, and a transverse oval structure and a longitudinal oval structure in the structure can deform when being subjected to external force to generate reaction force in the transverse direction and the longitudinal direction, so that the structure can generate the reaction force through deformation to disperse and offset the received force no matter the tire is subjected to radial impact force or tangential driving force or braking force; therefore, impact can be relieved, the smoothness of the vehicle is improved, the tire cannot deform greatly due to stress, and the driving resistance can be controlled well.

The oval bearing body is combined with the tire crown part, the tire rim and the wheel rim combination ring through a film pressing and vulcanizing process.

The rim combination ring is positioned between the oval general bearing body and the rim, and the structure fixes the tire on the rim.

The invention has the beneficial effects that:

(1) the invention relates to a non-pneumatic tire with an oval bearing body structure, which does not adopt compressed air as a tire support, and effectively avoids the problems of tire burst, air leakage and insufficient tire pressure in the pneumatic tire.

(2) The invention relates to a non-pneumatic tire with an oval overall bearing body structure, which can meet the use requirement of common automobile load through simulation analysis, and can absorb transverse and longitudinal acting force through deformation to improve the stability of a vehicle.

(3) The oval bearing body is made of polyurethane materials, and the materials can be recycled and are environment-friendly.

(4) The invention relates to a non-pneumatic tire with an oval bearing body structure, which is characterized in that all structures are processed together through a film pressing and vulcanizing process and has the advantage of strong integrity.

Drawings

FIG. 1 is a schematic view of a non-pneumatic tire having an oval overall bearing structure according to the present invention;

FIG. 2 is a cross-sectional schematic view of a non-pneumatic tire having an oval overall bearing structure according to the present invention;

FIG. 3 is a schematic view of a crown portion structure according to the present invention;

FIG. 4 is a schematic structural diagram of the oval overall support unit according to the present invention.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1 and 2, a non-pneumatic tire of an oval overall bearing structure of the present invention includes, in order from the outside to the inside in the radial direction, a crown portion 1, an oval overall bearing 2, and a rim engaging bead 3.

In FIG. 3, the tire crown part 1 is sequentially provided with the tread 1-1 with patterns, the tread rubber 1-2, the cushion layer 1-3 and the carcass ply 1-4 from outside to inside along the radial direction of the tire; the tread 1-1 is designed with patterns which can increase the drainage capacity and the friction force between the tire and the ground and enhance the grip of the tire; the tread rubber 1-2 may bond the tread 1-1 and a portion below the tread 1-1 together; the buffer layers 1-3 can relieve the impact from the outside, and the cord fabric layers 1-4 can bear the internal tension and impact load, so that the tearing resistance of the tread is improved.

The oval bearing body 2 in fig. 4 is sequentially divided into an upper layer structure 2-1, a middle layer structure 2-2 and a lower layer structure 2-3 along the radial direction of the tire, each layer structure is the same, the sizes of the layers are in a certain proportion, and each layer is arranged according to one unit in an annular array mode; the annular ellipse of each layer is divided into a longitudinal distribution mode of a long axis along the radial direction of the tire and a transverse distribution mode of the long axis vertical to the radial direction of the tire: the transverse distribution ellipse minor axis is along the radial direction of the tire, and the major axis of the transverse distribution ellipse minor axis is vertical to the radial direction of the tire; the longitudinal ellipse is positioned in the transverse ellipse, and the length of the long axis of the longitudinal ellipse is equal to that of the short axis of the transverse ellipse and is coincident with that of the short axis of the transverse ellipse.

The proportion of the three-layer structure in the oval bearing body 2 is as follows: the lower layer structure 2-3 occupies 1/2 the size ratio of which is less than that of the oval overall bearing body 2, and the upper layer structure 2-1 occupies 1/4 the size ratio of the oval overall bearing body 2.

The oval overall body 2 structure has one unit of each layer occupying an angle of 20 ° in the annular array of that layer.

The oval general bearing body 2 is made of polyurethane materials in a pouring mode, a formed space structure has good elasticity, transverse oval and longitudinal oval structures in the structure can generate transverse and longitudinal reaction forces through deformation when external force is applied, and the reaction forces generated through deformation disperse and offset the applied force.

The oval general bearing body 2 is combined with the tire crown part 1 and the rim combination ring 3 through a film pressing and vulcanizing process, and the formed structure is relatively stable.

The rim combination ring 3 is positioned between the oval general bearing body 2 and the rim, fixes the tire on the rim, and wraps the rim to prevent the rim from damaging the oval general bearing body 2.

The non-pneumatic tire with the oval bearing body structure can improve the running smoothness of a vehicle and reduce certain running resistance.

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.