CN212332303U

CN212332303U - Non-pneumatic radial tire with high damping performance

Info

Publication number: CN212332303U
Application number: CN202021724192.8U
Authority: CN
Inventors: 丁木; 付宏勋; 李宁; 毕小兰; 周鹏程
Original assignee: Triangle Tyre Co Ltd
Current assignee: Triangle Tyre Co Ltd
Priority date: 2020-08-18
Filing date: 2020-08-18
Publication date: 2021-01-12
Anticipated expiration: 2030-08-18

Abstract

The utility model relates to a gentle radial non-pneumatic tire with high buffering shock attenuation performance belongs to the tire field. The non-pneumatic tire comprises from outside to inside: the tire comprises a tire crown, a flexible spoke made of polyurethane material and a rigid rim. The tire crown comprises a tire tread, a cap ply layer, a No. 1 belt ply layer and a No. 2 belt ply layer; the tread comprises a tread pattern, a tread groove; the flexible spoke comprises a flexible inner ring, a flexible outer ring, a flexible side spoke plate and a flexible circumferential spoke plate; gentle spoke side radials dispose into wave line strip, and gentle spoke week radials arranges to layered structure, and week, side radials closed angle department set up the chamfer, can greatly improve the bearing capacity of car, high-efficient absorption car and drive the vibrations that the in-process produced on the road surface relatively to improve the security of traveling and take the travelling comfort, and reduce stress concentration, improve fatigue life, the rim is connected with the semi-axis of vehicle, non-pneumatic tire is by interior and adopt interference fit, compact structure outward.

Description

Non-pneumatic radial tire with high damping performance

Technical Field

The utility model relates to a tire field says in detail a non-pneumatic tire, especially relates to a gentle radial non-pneumatic tire with high buffering shock attenuation performance.

Background

As is well known, with the development of the times and the popularization of automobiles, the defects of the pneumatic tires of automobiles are gradually revealed: the tire is easy to burst, the catastrophic loss is easy to cause after the tire burst, the tire pressure needs to be maintained constantly, the manufacturing procedure is complicated, and the like. In recent years, pneumatic tires, which have dominated the world tire market 100 over the years, have been increasingly replaced by emerging non-pneumatic tires. Compared with a pneumatic tire, the most direct advantage of the non-pneumatic tire is that the tire burst condition cannot occur, the production process is simple, and the complicated production procedures are avoided. Generally speaking, the non-pneumatic tire breaks some of the defects of the traditional pneumatic tire and effectively improves the fuel economy, the steering stability and the riding comfort of the automobile. However, the new non-pneumatic tire has disadvantages of poor damping, load-bearing and heat dissipation effects while providing these advantages, and thus the new non-pneumatic tire is not widely used, and it is desired to provide a high-performance non-pneumatic tire for widespread use as soon as possible by various large enterprises and colleges.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides a gentle radial non-pneumatic tire with high buffering and damping performance carries out "curved surface" through the straight line type flexible spoke and handles, has designed out the novel non-pneumatic tire of wave line type flexible spoke. Compared with the non-pneumatic tire with the linear flexible spoke, the non-pneumatic tire with the wavy linear flexible spoke has better buffering and shock absorbing performance. The utility model provides a non-pneumatic tire provides certain design basis for the structure update and the technical development of follow-up non-pneumatic tire trade.

The utility model provides a technical scheme that its technical problem adopted is: a radial non-pneumatic tire having high cushion and shock absorption, comprising from the outside to the inside: the tyre comprises a tyre tread, a cap ply layer, a No. 1 belted layer and a No. 2 belted layer, wherein the tyre tread comprises tyre tread patterns and tyre tread grooves, the flexible spoke comprises a flexible inner ring, a flexible outer ring, a flexible side spoke plate and a flexible circumferential spoke plate, and the flexible side spoke plate is arranged into a wavy line type formed by three sections of arcs with certain curvature.

The utility model discloses still can realize through following measure:

the three-section arc line of the spoke plate at the flexible side is set to be equal in curvature or variable in curvature.

The gentle spoke side radials adopt the mode of annular array along the even array n group of gentle spoke week radials circumferencial direction equidistant, the gentle spoke side radials unit angle of every group wavy line type is 360/n degree.

The thickness of the spoke plate at the flexible spoke side and the spoke plate at the flexible spoke circumference is set to be the same size, and a chamfer angle is arranged at the sharp corner joint of the spoke plate and the spoke plate.

The flexible spoke side spoke plate and the flexible spoke circumferential spoke plate supporting part are made of high-modulus polyurethane materials.

The tire tread of the tire tread is made of low rolling resistance rubber materials, the tire tread layer of the tire tread is made of nylon fiber materials, and the No. 1 belted layer and the No. 2 belted layer of the tire tread are made of steel wire materials.

The tire crown is combined with the flexible spoke outer ring, the flexible spoke inner ring is combined with the rigid rim, interference fit is adopted for the two types of contact, and polyurethane adhesive is used for further adhesion.

The flexible spoke is formed in one step by adopting an injection molding method.

The utility model has the advantages that under the common vertical load and running condition of the traditional pneumatic tire, the inflation pressure of the pneumatic tire is replaced by the internal wave line type flexible spoke support structure, thereby avoiding the occurrence of tire burst; under common vertical load and running working conditions, the wavy linear flexible spoke with a certain curvature can bend towards a fixed direction under the action of load, so that the condition that adjacent spokes are bent relatively to cause abrasion damage is avoided; the wave linear flexible spoke with a certain curvature has extremely high bearing capacity and good damping effect as a compressed spring when bearing load, can rebound in time after being compressed, has larger rebound force, and can convert the elastic potential energy of the wheel into the advancing kinetic energy of the automobile so as to play the roles of energy conservation and consumption reduction on the whole wheel; the rigidity of the wheel spoke plate is reduced by the wavy linear flexible spoke, and when the wavy linear flexible spoke bears the same load, the tire has larger ground contact area and more uniform pressure distribution, so that the tire has excellent ground holding capacity; the chamfers are arranged at the connecting sharp corners of the circumferential and side radial plates of the tire, so that the stress concentration phenomenon of the wheel when bearing load is obviously improved, and the fatigue life of the tire is prolonged; the circumferential plate of the tire is designed into a layered structure, so that the bearing capacity of the wheel is greatly improved; the utility model discloses a week, the gentle spoke bearing structure of side adopt injection moulding method one shot forming, and production simple process, production efficiency is high.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a three-dimensional view of the present invention;

fig. 2 is a front view of the present invention;

fig. 3 is an elevation view of a compliant spoke according to the present invention;

fig. 4 is a three-dimensional view of the flexible supporting unit of the present invention;

FIG. 5 is a schematic view of the structure of the crown of the present invention;

in the figure: 1. the tire comprises a tire crown, 2 flexible spokes, 3 rigid wheel rims, 1-1 tire treads, 1-2 cap ply layers, 1-3.1 number belt layers, 1-4.2 number belt layers, 1-1a number tire tread patterns, 1-1b number tire tread patterns, 2-1 number flexible inner rings, 2-2 number flexible outer rings, 2-3 number flexible side spokes and 2-4 number flexible circumferential spokes.

Detailed Description

The utility model provides a gentle spoke formula non-pneumatic tire with high buffering shock attenuation performance utilizes "curved surface" principle, with the wave line type that the three-section pitch arc that the design of flexible spoke side radials constitutes for having certain camber.

The utility model discloses open and advance by outer to interior include in proper order: a crown 1, flexible spokes 2 of polyurethane material, a rigid rim 3. The tire crown 1 comprises a tire tread 1-1, a cap ply layer 1-2, a No. 1 belt ply layer 1-3 and a No. 2 belt ply layer 1-4; the tread 1-1 comprises a tread pattern 1-1a and a tread groove 1-1 b; the flexible spoke 2 comprises a flexible inner ring 2-1, a flexible outer ring 2-2, a flexible side spoke plate 2-3 and a flexible circumferential spoke plate 2-4.

The spoke plates 2-3 on the radial side are arranged to be of a wavy line type formed by three sections of arcs with certain curvature, the three sections of arcs can be arranged to be of equal curvature, variable curvature and preferential equal curvature, and the buffering and damping performance of the non-pneumatic tire can be greatly improved.

The wave line type flexible spoke side wheel disk 2-3 adopts the mode of annular array to evenly array n groups at equal intervals along the circumferential direction of the flexible spoke circumferential wheel disk 2-4, and the angle of each group of wave line type flexible spoke side wheel disk unit is (360/n) degrees, so that the stress of the non-pneumatic tire is more even, and the durability of the non-pneumatic tire is improved.

The flexible circumferential webs 2-4 are arranged in a layered structure, for example, 3 layers, in the tire radial direction, greatly improving the load-bearing capacity of the non-pneumatic tire.

Chamfers are arranged at the joints of sharp angles of the flexible spoke circumferential wheel plates 2-4 and the flexible spoke side wheel plates 2-3, and the stress concentration phenomenon of the non-pneumatic tire can be effectively improved through the design.

The thickness of the flexible circumferential webs 2-4 and flexible side webs 2-3 are set to the same size, for example 6 mm.

And the supporting parts of the flexible spoke circumferential web 2-4 and the flexible spoke side web 2-3 are made of high-modulus polyurethane materials.

The tire tread 1-1 is made of low rolling resistance rubber materials, the cap ply 1-2 is made of nylon fiber materials, and the No. 1 belted layer 1-3 and the No. 2 belted layer 1-4 are made of steel wire materials.

The tire tread 1-1 is combined with the flexible spoke outer ring 2-2, the flexible spoke inner ring 2-1 is combined with the rigid rim 3, interference fit is adopted for the two contacts, and polyurethane adhesive is used for further bonding.

The flexible spoke 2 is formed in one step by adopting an injection molding method, so that the non-pneumatic tire is simple in production process and high in production efficiency, and automatic production can be realized.

As shown in FIG. 1, a gentle spoke formula non-pneumatic tire with high buffering shock attenuation performance, its flexible spoke 2 side radials design for the wave line type, has greatly improved non-pneumatic tire's buffering, shock attenuation performance has reduced non-pneumatic tire gentle spoke bearing structure's rigidity has increased tire ground connection area, makes ground connection pressure distribution more even, has improved non-pneumatic tire's ability of grabbing ground.

As shown in fig. 2, the wave line type flexible spoke 2 with a certain curvature has a very high bearing capacity and a good damping effect as a compressed spring when bearing a load, and can rebound in time after being compressed, and the resilience force is larger, and the wave line type flexible spoke 2 can convert the elastic potential energy of the wheel into the kinetic energy of the advancing vehicle, so as to play a role in energy conservation and consumption reduction for the whole wheel.

As shown in FIG. 3, the flexible spoke 2 of the non-pneumatic tire is composed of a flexible inner ring 2-1, a flexible outer ring 2-2, a flexible side web 2-3 and a flexible circumferential web 2-4, wherein the flexible side web 2-3 is designed to be in a wavy line shape with a certain curvature. When bearing load, the wavy line type flexible spoke 2 can bend towards a fixed direction, and the condition that adjacent spokes bend relatively to cause abrasion damage is avoided.

The spoke type flexible spoke inner ring is characterized in that the spoke type flexible spoke circumferential spoke plate 2-4, the spoke type flexible spoke side spoke plate 2-3, the spoke type flexible spoke inner ring 2-1 and the spoke type flexible spoke outer ring 2-2 are communicated with one another, an injection molding method is adopted for one-step molding, the production process is simple, and the production efficiency is high.

As shown in fig. 4, the flexible spoke circumferential plates 2-4 of the non-pneumatic tire of the present invention are designed into a layered structure, which greatly improves the bearing capacity of the wheel; and the sharp corners of the connecting parts of the spoke plates 2-4 and the spoke plates 2-3 at the spoke sides of the non-pneumatic tire are provided with chamfers, so that the stress concentration phenomenon of the wheel when bearing load is obviously improved, and the fatigue life of the tire is prolonged.

As shown in FIG. 5, the structural schematic diagram of the crown 1 of the radial non-pneumatic tire with high damping performance of the present invention comprises a tread 1-1, a cap ply 1-2, a belt ply 1-3 of No. 1, and a belt ply 1-4 of No. 2; wherein the tread 1-1 comprises tread patterns 1-1a and tread grooves 1-1 b; the tread 1-1 is made of wear-resistant and wet-skid-resistant low rolling resistance rubber materials, and is bonded with the non-pneumatic tire spoke outer ring 2-2 by utilizing polyurethane adhesive.

Through simulation analysis, compared with the traditional pneumatic tire and non-pneumatic tire with the same specification: (1) non-pneumatic tire's the gentle spoke bearing structure of wave line type has replaced traditional pneumatic tire's inflation pressure, has avoided the defect that traditional pneumatic tire easily explodes child. (2) The inside bearing structure design of non-pneumatic tire is for having the wave line type flexible spoke of certain camber, has greatly improved non-pneumatic tire's buffering shock attenuation performance. (3) Wave line type flexible spoke with definite curvature, under vertical load effect commonly used, wave line type flexible spoke can be crooked towards fixed direction, has avoided adjacent radials relative bending and has caused the condition of wearing and tearing destruction. (4) Wave line type flexible spoke with definite curvature is like the spring of compressed when bearing load, has high bearing capacity and good shock attenuation effect to can be rebound in time after being compressed, and the resilience force can be bigger, and wave line type flexible spoke can turn into the kinetic energy that the car gos forward to wheel elastic potential energy, plays energy saving and consumption reduction's effect for the wheel whole. (5) The wave line type flexible spoke reduces the rigidity of the wheel spoke plate, and can lead the tire to have larger grounding area and more uniform grounding pressure when bearing the same load, thus leading the tire to obtain excellent ground gripping capability; (6) non-pneumatic tire's week, side radials meet the closed angle department and set up the chamfer, are showing the stress concentration phenomenon of having improved the wheel when bearing load, have improved the fatigue life of tire. (7) The circumferential spoke plate of the non-pneumatic tire is designed into a layered structure, so that the bearing capacity of the wheel is greatly improved; (8) the non-pneumatic tire flexible spoke adopts the injection molding method one shot forming, and production simple process, production efficiency is high.

The above is only the preferred embodiment of the present invention, but the present invention is not limited to the embodiment, and any obvious improvement, replacement or modification that can be made by those skilled in the art without departing from the technical principle of the present invention all belong to the protection scope of the present invention.

Claims

1. A radial non-pneumatic tire having high cushion and shock absorption, comprising from the outside to the inside: the tyre comprises a tyre tread, a cap ply layer, a No. 1 belted layer and a No. 2 belted layer, wherein the tyre tread comprises tyre tread patterns and tyre tread grooves, the flexible spoke comprises a flexible inner ring, a flexible outer ring, a flexible side spoke plate and a flexible circumferential spoke plate, and the flexible side spoke plate is arranged into a wavy line type formed by three sections of arcs with certain curvature.

2. A spoked non-pneumatic tire having high cushion and shock performance as claimed in claim 1, wherein said three arcs of the spoke webs are arranged to have a constant curvature.

3. A spoked non-pneumatic tire having high cushion and cushioning properties as set forth in claim 2, wherein said spoke type spokes are arranged in an annular array in n groups of uniformly spaced units in a circumferential direction of the spoke type spokes, and the angle of each group of the spoke type spokes is 360/n degrees.

4. A radial non-pneumatic tire having high cushion and shock performance as claimed in claim 1, wherein said radial spokes are arranged in a layered structure in the radial direction of the tire.

5. A radial non-pneumatic tire having high cushion and shock performance as claimed in claim 1, wherein said radial side webs and said radial peripheral webs are of the same thickness and are chamfered at the point of intersection.

6. The spoked non-pneumatic tire having high cushion and shock performance as claimed in claim 1, wherein said spoked side web and said spoked peripheral web support portions are made of a high modulus polyurethane material.

7. A radial non-pneumatic tire having high cushion and shock absorption according to claim 1, wherein said tread band is made of a low rolling resistance rubber material, said cap ply is made of a nylon fiber material, and said belt layers 1 and 2 are made of a steel wire material.

8. A radial non-pneumatic tire having high cushion and cushioning properties as in claim 1, wherein said crown is bonded to said radial outer band by interference fit and further bonded with a polyurethane adhesive.

9. A radial non-pneumatic tire according to claim 1, wherein said radial inner band is bonded to said rigid rim with an interference fit and further bonded with a polyurethane adhesive.

10. A flexible spoke type non-pneumatic tire with high damping performance according to claim 1 wherein the flexible spokes are formed in one step by injection molding.