CN108715115B

CN108715115B - Combined snow tire

Info

Publication number: CN108715115B
Application number: CN201810418392.1A
Authority: CN
Inventors: 许广举; 赵华伟; 赵洋; 李铭迪; 胡焰彬; 林玲
Original assignee: Changshu Institute of Technology
Current assignee: Changshu Institute of Technology
Priority date: 2018-05-04
Filing date: 2018-05-04
Publication date: 2021-01-05
Anticipated expiration: 2038-05-04
Also published as: CN108715115A

Abstract

The invention discloses a combined snow tire, which comprises a tire body, wherein the tire body is provided with a tire tread and an embedding part, the tire tread is provided with a plurality of circumferential grooves, the embedding part comprises a rubber ring, the inner surface of the rubber ring is provided with a plurality of raised lines matched with the circumferential grooves, the embedding part is embedded in the tire tread through the raised lines, the surface of the embedding part is provided with a plurality of metal strips and H-shaped patterns, the metal strips and the H-shaped patterns protrude out of the outer surface of the rubber ring, the metal strips and the H-shaped patterns are arranged in parallel at intervals along the circumferential direction of the rubber ring, the surface of each metal strip is provided with snow grooves for cutting off the metal strips in the length direction, the embedding part and the tire tread are both made of rubber materials, and. The invention improves the vehicle operation stability on the ice and snow road surface, improves the wear resistance of the tire and enables the snow tire to adapt to more ground conditions.

Description

Combined snow tire

Technical Field

The invention relates to a tire, in particular to a combined snow tire, and belongs to the technical field of vehicle tires.

Background

Snow tires are tires suitable for use in snow, and usually have metal nails added to the tread of a common tire, which can increase the grip, and in cold places where snow is easily accumulated, people can use such tires, such as russia, and snow tires have metal nails thereon, but such tires are prohibited from being used in most countries, mainly because: on the one hand, the road surface is easy to damage, and on the other hand, the safety is not high.

Another possible solution is that, compared with the common tire, the snow tire has more fine lines on the tread to enhance the grip force, and meanwhile, the snow tire increases the friction force with the ice and snow road surface through a special formula. Its advantage lies in improving the trafficability characteristic and the security on ice and snow road surface. The snow tire tread is softer in material, and the carefully prepared silica mixture rubber formula can be contacted with a smooth ice surface more tightly, so that a friction force larger than that of a four-season tire is generated, and the controllability and the safety of a vehicle on the smooth ice surface are greatly improved. However, in a place with less snow, the tire is worn more quickly because the tread is softer, and is not suitable for a region with less snow, so that the tire has certain limitations.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide a combined snow tire, which reduces the degree of damage to the road surface, improves the vehicle handling stability on icy and snowy road surfaces, and improves the wear resistance of the tire, so that the snow tire can adapt to more ground conditions.

The technical scheme of the invention is as follows: the utility model provides a modular snow child, includes the matrix, the matrix is equipped with the tread and inlays the portion, the tread is equipped with a plurality of circumference recesses, inlays the portion including gluing the ring, the internal surface of gluing the ring is equipped with a plurality of sand grips that match with the circumference recess, inlay the portion and pass through the sand grip inlay in the tread, inlay the portion surface be equipped with a plurality of salient in the metal strip and the H shape decorative pattern of gluing the ring surface, metal strip and H shape decorative pattern are followed the parallel interval arrangement of circumference of gluing the ring, the metal strip surface is equipped with the snow groove of cutting the metal strip length direction, it is the rubber material with the tread to inlay the portion, the elastic rigidity of inlaying the portion is less than the tread.

Furthermore, the section of the metal strip is in a convex shape, and the metal strip is solidified in the rubber ring.

Furthermore, the metal strip protrudes out of the surface of the rubber ring by 2-5 mm.

Furthermore, the surface of the metal strip is provided with vertical cross fine grid grains, and the included angle between the side line direction of the vertical cross fine grid grains and the length axis of the metal strip is 30-60 degrees.

Furthermore, the length axis of metal strip and the axial axis contained angle of gluing the ring are 65 ~ 83.

Furthermore, the length axis of the snow groove is perpendicular to the length axis of the metal strip, the width of the snow groove is 3-5 mm, and the depth of the snow groove is 1.5-2.5 mm.

Furthermore, a metal reinforcing piece with a T-shaped section is arranged in the embedding part, and one part of the metal reinforcing piece is embedded into the convex strip.

Preferably, the tread is made of thermoplastic vulcanized rubber, and the embedded part is made of silicon dioxide mixture rubber.

Compared with the prior art, the invention has the advantages that: the embedded part has lower elastic rigidity than the tread and forms H-shaped patterns on the surface, so that the embedded part is pressed to form better contact with the road surface; compared with the metal nails in the prior art, the metal strip increases the ground contact area and has no sharp part, the metal strip is connected to the tire tread through the embedded part, so that the service life of the tire is longer, the metal strip is strip-shaped, which is beneficial to scraping the snow layer on the snow road, the contact effect of the embedded part and the road is greatly improved, the friction force of the tire is increased, and the remarkable anti-skidding effect is achieved; the snow groove can further increase a guide-out passage of accumulated snow, so that the snow removing speed of the metal strip is increased; the vertical crossed fine grid texture on the surface of the metal strip enhances friction, and enables the pavement to maintain an extremely weak snow accumulation layer, thereby further reducing the damage to the pavement. The embedding part can be fastened in the groove of the tread through the connecting part and is simple in assembly and combination, so that the production process is not changed greatly, the production process has inheritance, and the manufacturing is simple.

Drawings

Fig. 1 is a sectional structure schematic diagram of the combined snow tire.

FIG. 2 is a schematic cross-sectional view of the carcass.

FIG. 3 is a schematic view of a damascene structure.

FIG. 4 is a schematic view of the surface structure of the damascene portion.

Fig. 5 is a schematic view of a longitudinal sectional structure of the rubber ring.

Fig. 6 is a schematic longitudinal sectional structure of the metal strip.

Fig. 7 is a schematic view of the surface structure of the metal strip.

FIG. 8 is a schematic view of a connection portion of an inlay portion.

Detailed Description

The present invention is further illustrated by the following examples, which are not to be construed as limiting the invention thereto.

Referring to fig. 1 to 7, the combined snow tire according to the present embodiment includes a tire body 1, the tire body 1 includes a tread 2 and an embedded portion 3 contacting with the ground, the tread 2 has two spaced circumferential grooves 4, the embedded portion 3 includes a rubber ring 3a, the inner surface of the rubber ring 3a is provided with two protruding strips 3b, and the protruding strips are fixedly embedded in the circumferential grooves 4 by interference fit. The inside metal reinforcement 5 that is the T shape of cross-section that is equipped with of inlay portion 3, the part embedding sand grip 3b of metal reinforcement 5 for inlay portion 3 is more reliable with the joint support of tread 1. The tread 2 of the tire body 1 is thermoplastic vulcanized rubber, the material of the embedded part 3 is silicon dioxide mixture rubber, and the elastic rigidity of the embedded part 3 is smaller than that of the tread 1.

Sixty metal strips 6 protruding out of the surface of the rubber ring 3a and H-shaped patterns 7 are arranged on the surface of the rubber ring 3a in the embodiment, the metal strips 6 and the H-shaped patterns 7 are arranged in parallel at intervals along the circumferential direction of the rubber ring 3a, the section of each metal strip 6 is in a convex shape, the metal strips 6 protrude out of the surface of the rubber ring 4 by 2-5 mm, and 3.5mm is preferred in the embodiment. The metal strip 6 is arranged in parallel along the circumferential direction of the rubber ring 4, the bottom of the metal strip is solidified in the rubber ring 3a, the included angle alpha between the length axis of the metal strip 6 and the axial axis of the rubber ring 3a is 65-83 degrees, and 75 degrees is preferred in the embodiment. The surface of the metal strip 6 is provided with a snow groove 8 and a vertical cross fine lattice texture 9 which cut the metal strip 6 in the length direction, the length axis of the snow groove 8 is vertical to the length axis of the metal strip 6, the width of the snow groove 8 is 3-5 mm, and the depth is 1.5-2.5 mm. The included angle beta between the side line direction of the vertical crossed fine lattice patterns 9 and the length axis of the metal strip 6 is 30-60 degrees, and 45 degrees is preferred in the embodiment.

The embedded part 3 can be integrally manufactured or formed by connecting long strips, connecting parts shown in fig. 8 can be adopted for connection when the embedded part is formed by connecting long strips, each connecting part comprises a connecting bolt 10, a connecting nut 11 and a limiting circular baffle 12, one end of each connecting bolt 10 is fixed on the rubber ring 3a, and the other end of each connecting bolt is provided with a thread. Connecting nut 11 is equipped with a blind end screw hole, and the blind end bottom is equipped with a circular aperture, and the circular aperture that connecting nut 11 blind end bottom was passed to spacing circle fender 12 is fixed on rubber ring 3a, and the spacing circle of the other end closely pastes screw hole blind end bottom, and for clearance fit between the circular aperture of spacing circle fender 12 and connecting nut 11 blind end bottom, connecting nut 11 can be rotatory round spacing circle fender 12 to be connected the fastening with connecting bolt 10.

Claims

1. A combined snow tire comprises a tire body and is characterized in that the tire body is provided with a tire tread and an embedding part, the tire tread is provided with a plurality of circumferential grooves, the embedding part comprises a rubber ring, the inner surface of the rubber ring is provided with a plurality of raised lines matched with the circumferential grooves, the embedding part is embedded in the tire tread through the raised lines, the surface of the embedding part is provided with a plurality of metal strips and H-shaped patterns, the metal strips and the H-shaped patterns protrude out of the outer surface of the rubber ring, the metal strips and the H-shaped patterns are arranged along the circumferential direction of the rubber ring at intervals in parallel, the included angle between the length axis of each metal strip and the axial axis of the rubber ring is 65-83 degrees, the surface of each metal strip is provided with a snow groove for cutting the length direction of each metal strip and vertical cross fine grid patterns, the included angle between the side line direction of the vertical cross fine grid patterns and the length axis of each metal strip is, the embedded part and the tire tread are made of rubber materials, and the elastic rigidity of the embedded part is smaller than that of the tire tread.

2. The modular snow tire of claim 1, wherein said metal strip is embossed in cross-section, said metal strip being cured within said rubber ring.

3. The combined snow tire of claim 1, wherein the metal strips protrude from the surface of the rubber ring by 2-5 mm.

4. The combined snow tire according to claim 1, wherein the snow groove has a width of 3 to 5mm and a depth of 1.5 to 2.5 mm.

5. The combined snow tire according to claim 1, wherein a metal reinforcing member having a T-shaped cross section is provided inside the embedding portion, and a part of the metal reinforcing member is embedded in the rib.

6. The combined snow tire of claim 1, wherein the tread is a thermoplastic vulcanizate and the insert is a silica hybrid rubber.