CN113043791A

CN113043791A - Multi-cavity non-pneumatic tire based on metal spring net surface support

Info

Publication number: CN113043791A
Application number: CN202110367184.5A
Authority: CN
Inventors: 宋彬
Original assignee: Army Engineering University of PLA
Current assignee: Army Engineering University of PLA
Priority date: 2021-04-06
Filing date: 2021-04-06
Publication date: 2021-06-29

Abstract

The invention discloses a multi-cavity non-pneumatic tire based on metal spring net surface support, which comprises a net surface formed by weaving metal spiral springs, wherein a tire body is connected outside the net surface, a bead toe integrally formed with the tire body is constructed at the root part of the net surface, a buffer cavity is formed between the bead toe and the tire body, the outer surface of the net surface is connected with the inner wall of the tire body, a wheel rim is assembled on the outer surface of the bead toe, and the buffer cavity is communicated with the outside through the bead toe and the wheel rim. The invention is suitable for the driving requirements of non-paved road surfaces and various paved road surfaces, the tire body does not influence the bearing and buffering performance of the tire after being punctured by puncture, the safety is higher, meanwhile, the tire can be applied to military or police wheeled vehicles, and the tire has the characteristics of resistance to penetration of bullets and shrapnels, flame retardance, explosion prevention and the like; and the problems that the service life is reduced, the self weight is increased and the like due to the fact that foreign matters enter the tire are avoided. The invention is applicable to the technical field of tires.

Description

Multi-cavity non-pneumatic tire based on metal spring net surface support

Technical Field

The invention belongs to the technical field of tires, and particularly relates to a multi-cavity non-pneumatic tire based on metal spring net surface support.

Background

The existing tire adopts an inflatable structure, so that the inflatable tire is easy to puncture and burst, the running safety of a vehicle is threatened, and meanwhile, the safety tires of an inner support type, a solid type and the like have the problems of great weight, great running resistance and the like. At present, in order to avoid the problems of tire burst and the like, a tire structure with a spring mesh surface woven by metal spiral springs is adopted to replace a tire, so that the tire does not need to be inflated, and the problem of tire burst is avoided; the existing tire structure also adopts a crawler-type mode to connect the tire with a single metal spring mesh surface or the tires with a plurality of metal spring mesh surfaces, but the crawler-type structure plays a role in improving the ground adhesion force and cannot fully prevent foreign matters from entering the tire from the side direction, formed by the metal spring mesh surfaces, of the tire.

Disclosure of Invention

The invention provides a multi-cavity non-pneumatic tire based on metal spring net surface support, which can adapt to the driving requirements of non-paved road surfaces and various paved road surfaces, the tire body is punctured by puncture without influencing the bearing and buffering performance of the tire, and the tire has higher safety, meanwhile, the tire can be applied to military or police wheeled vehicles, and has the characteristics of pill and shrapnel penetration resistance, flame retardance, explosion prevention and the like; and the problems that the service life is shortened, the self weight is increased and the like caused by the fact that sundries enter the tire in a large quantity are avoided.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

the utility model provides a non-pneumatic tire of multicavity based on metal spring wire side supports, includes the wire side of weaving the constitution by metal coil spring, in the wire side outer joint has the matrix, the root of wire side is constructed has the child toe with matrix integrated into one piece, form the cushion chamber between child toe and the matrix, the surface of wire side and the inner wall connection of matrix, are equipped with the rim in the surface of child toe, the cushion chamber is through child toe and rim and external intercommunication.

Furthermore, a layer of lining layer is constructed on the inner surface of the net surface, and the lining layer and the tire toe are integrally formed.

Further, in be provided with annular chamber wall along its axial interval in the cushion chamber, annular chamber wall respectively with child toe and inner liner integrated into one piece, the axis of annular chamber wall and the axis coincidence of cushion chamber, and annular chamber wall separates into a plurality of cavitys with the cushion chamber, each the cavity communicates with the external world respectively.

Furthermore, a plurality of vent holes which penetrate through the wheel rim and respectively communicate the corresponding cavities with the outside are formed in the bead toe, and the vent holes are used for balancing the pressure of the cavities in the tire and the external atmospheric pressure.

Further, the carcass and the inner liner are fixedly connected between the two through a vulcanization process.

Furthermore, an inner fixing ring and an outer fixing ring are welded on two inner end faces of the net surface, and the inner fixing ring and the outer fixing ring are circular metal rings welded end to end.

Further, a crown is constructed on the end face of the carcass far away from the rim.

Due to the adoption of the structure, compared with the prior art, the invention has the technical progress that: the tyre body, the metal spring net surface and the tyre toe periphery form a buffer cavity, the metal spring net surface plays an elastic supporting role, the buffer cavity is communicated with the external atmosphere, and the tyre can be used without inflation; when the tire is punctured by a foreign body, even the tire surface has larger area defect, the metal spring net surface plays a main supporting role, the bearing and buffering performance of the tire is not influenced, and the normal running of the vehicle is continuously maintained; foreign matters are effectively prevented from entering the metal spring net surface to damage the metal spring net surface; in conclusion, the invention is suitable for the driving requirements of non-paved road surfaces and various paved road surfaces, the tire body is punctured by puncture without influencing the bearing and buffering performance of the tire, and the tire has higher safety, meanwhile, the tire can be applied to military or police wheeled vehicles, and has the characteristics of resistance to penetration of bullets and elastic pieces, flame retardance, explosion prevention and the like; and the problems that the service life is shortened, the self weight is increased and the like caused by the fact that sundries enter the tire in a large quantity are avoided.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.

In the drawings:

FIG. 1 is a partial axial cross-sectional view of an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 from another angle;

fig. 3 is an enlarged view of a portion a in fig. 2.

Labeling components: 1-metal spring net surface, 2-inner fixing ring, 3-outer fixing ring, 4-tire body, 5-tire crown, 6-tire toe, 7-vent hole, 8-inner liner layer, 9-annular cavity wall and 10-wheel rim.

Detailed Description

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for purposes of illustration and explanation only and are not intended to limit the present invention.

The invention discloses a multi-cavity non-pneumatic tire supported on a metal spring mesh surface 1, which comprises the metal spring mesh surface 1, a tire body 4 and a rim 10 as shown in figures 1-3, wherein the structural size of a spring (such as a spring material, a spring intermediate diameter, a wire diameter, a pitch, a turn number, a free height and the like) forming the metal spring mesh surface 1, the number and the thickness of annular cavity walls determine the stiffness (vertical stiffness, radial stiffness, longitudinal stiffness, torsional stiffness) of each direction, the damping and buffering performance and the like of the tire; the tyre body 4 is suitable for rims 10 with different specifications, different sizes and different section shapes, and has good universality; the contact surfaces of the bead toes 6 and the rim 10 are uniformly distributed with anti-skid grooves parallel to the axial direction of the rim 10, and are used for improving the mounting combination tightness of the rim 10 and the tire body 4; the metal spring net surface 1 is formed by adjacent hooking and weaving of a plurality of cylindrical spiral springs, the inner fixing ring 2 and the outer fixing ring 3 are circular metal rings welded end to end, and the circular metal rings are welded with two end faces of the metal spring net surface 1 to restrain an inner ring of the metal spring net surface 1. The metal spring net surface 1 forms a net surface of the tire, the tire body 4 is constructed outside the net surface, the bead toe 6 is constructed at the root of the net surface and is integrally formed with the tire body 4, a buffer cavity is formed between the bead toe 6 and the tire body 4, the outer surface of the net surface is connected with the inner wall of the tire body 4, the wheel rim 10 is assembled on the outer surface of the bead toe 6, namely, is positioned at the central position of the whole tire, and the buffer cavity is communicated with the outside through the bead toe 6 and the wheel rim 10. The working principle and the advantages of the invention are as follows: a tyre body 4, a metal spring net surface 1 and a tyre toe 6 form a buffer cavity in an enclosing manner, the metal spring net surface 1 plays an elastic supporting role, the buffer cavity is communicated with the outside atmosphere, and the tyre can be used without being inflated; when the tire is punctured by a foreign body, even the tire tread is damaged in a large area, the metal spring net surface 1 plays a main supporting role, the bearing and buffering performance of the tire is not influenced, and the normal running of the vehicle is continuously maintained; foreign matters are effectively prevented from entering the metal spring net surface 1 to damage the metal spring net surface 1; in conclusion, the invention is suitable for the driving requirements of non-paved road surfaces and various paved road surfaces, the tire body 4 is punctured by puncture without influencing the bearing and buffering performance of the tire, and the tire has higher safety, meanwhile, the tire can be applied to military or police wheeled vehicles, and has the characteristics of resistance to penetration of bullets and elastic pieces, flame retardance, explosion prevention and the like; and the problems that the service life is shortened, the self weight is increased and the like caused by the fact that sundries enter the tire in a large quantity are avoided.

As a preferred embodiment of the invention, an inner liner 8 is formed on the inner surface of the web, the inner liner 8 being integrally formed with the bead toe 6. In the embodiment, in order to improve the integrity of the net surface with the tire body 4 and the inner liner 8 and improve the elastic deformation consistency of the net surface with the tire body 4 and the inner liner 8, the net surface is fixed between the tire body 4 and the inner liner 8 through a vulcanization process.

As a preferred embodiment of the present invention, as shown in fig. 3, an inner fixing ring 2 and an outer fixing ring 3 are welded to two inner end surfaces of the net surface, and the inner fixing ring 2 and the outer fixing ring 3 are circular metal rings welded end to end, so as to improve the overall strength and integrity of the net surface and prevent a part of metal springs forming the net surface from falling off.

As a preferred embodiment of the invention, annular cavity walls 9 are arranged in the buffer cavity at intervals along the axial direction of the buffer cavity, the annular cavity walls 9 are respectively and integrally formed with the tire toe 6 and the inner liner 8, the axial line of the annular cavity wall 9 is coincident with the axial line of the buffer cavity, the buffer cavity is divided into a plurality of cavities by the annular cavity walls 9, and each cavity is respectively communicated with the outside. Specifically, the bead toe 6 is provided with a plurality of vent holes 7 which penetrate through the rim 10 and respectively communicate the corresponding cavities with the outside. The working principle and the advantages of the invention are as follows: the non-inflatable features of the invention are embodied in: the metal spring net surface 1, the inner liner 8 and the annular cavity wall divide the inner part of the tire body 4 into a plurality of cavities, the spiral spring net surface and the annular cavity walls play a role in elastic support, each cavity is communicated with the external atmosphere through the vent hole 7, the tire can be used without being inflated, the pressure of the inner cavity of the tire and the external atmospheric pressure can be balanced, and the phenomenon that the pressure of the inner cavity of the tire is too high due to the rise of temperature when the tire runs and the structural strength of the tire is reduced and the damping and buffering performance of the tire are influenced is prevented; when the tire is punctured by a foreign body, even the tread is damaged in a large area, the metal spring net surface 1 plays a main supporting role, the annular cavity wall 9 plays an auxiliary supporting role, the bearing and buffering performance of the tire is not affected, and the normal running of the vehicle is continuously maintained.

In order to increase the grip of the carcass 4, a tread 5 is formed on the end of the carcass 4 facing away from the rim 10, and a tread or groove is formed on the tread 5.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The utility model provides a non-pneumatic tire of multicavity based on metal spring wire side supports, includes the wire side of weaving by metal coil spring and constituting, in the wire side is connected with matrix outward, its characterized in that: the root of the net surface is provided with a bead toe integrally formed with the tire body, a buffer cavity is formed between the bead toe and the tire body, the outer surface of the net surface is connected with the inner wall of the tire body, the outer surface of the bead toe is provided with a rim, and the buffer cavity is communicated with the outside through the bead toe and the rim.

2. A multi-chamber non-pneumatic tire based on metal spring web support as claimed in claim 1, wherein: and a layer of lining layer is constructed on the inner surface of the net surface, and the lining layer and the tire toe are integrally formed.

3. A multi-chamber non-pneumatic tire based on metal spring web support as claimed in claim 2, wherein: annular cavity walls are arranged in the buffer cavity at intervals along the axial direction of the buffer cavity, the annular cavity walls are integrally formed with the tire toe and the inner liner respectively, the axis of the annular cavity walls coincides with the axis of the buffer cavity, the buffer cavity is divided into a plurality of cavities by the annular cavity walls, and the cavities are communicated with the outside respectively.

4. A multi-chamber non-pneumatic tire based on metal spring web support as claimed in claim 3, wherein: and a plurality of vent holes which penetrate through the wheel rim and respectively communicate the corresponding cavities with the outside are formed in the bead toes, and the vent holes are used for balancing the pressure of the cavities in the tire and the external atmospheric pressure.

5. A multi-chamber non-pneumatic tire based on metal spring web support as claimed in claim 2, wherein: the carcass and the inner liner are fixedly connected with the net surface between the carcass and the inner liner through a vulcanization process.

6. A multi-chamber non-pneumatic tire based on metal spring web support as claimed in claim 1, wherein: and the inner fixing rings and the outer fixing rings are circular metal rings welded end to end.

7. A multi-chamber non-pneumatic tire based on metal spring web support as claimed in claim 1, wherein: and a crown is constructed on the end surface of the carcass far away from the rim.