CN106739818A - A kind of trouble-proof tire - Google Patents

Abstract

An anti-explosion tire is composed of three parts: carcass structure, reinforcement structure and filling material. The tire crown part from outside to inside is wear-resistant rubber surface layer 1, crown protection layer 13, thick steel belt 12, nylon belt 11, thin steel belt 10, ordinary rubber structure layer 3, carcass Meridian layer 4, lightweight porous elastic material 9, lightweight porous rigid material 8; high elastic buffer layer 2 is set on both sides of the crown, the bead part is set with bead steel wire, the bead steel wire is wrapped in a triangular cross-section colloid, the tire The toe mouth part is provided with a toe mouth protective layer.

Description

A kind of run-flat tire

Technical field

The invention relates to an explosion-proof tire, which does not need to be inflated, does not blow out, and can adapt to various road conditions.

Background technique

Highway tire blowout is one of the causes of vicious traffic accidents, and the death rate of high-speed tire blowout on the highway is close to 100%. Therefore, the tire condition seriously threatens the personal safety of drivers and passengers. According to statistics, more than 46% of highway traffic accidents are caused by tire failures, and tire blowout accounts for 70% of the total tire failure accidents, that is, 32.2% of highway traffic accidents are caused by tire failures. caused by a blowout.

The main reasons for tire blowout are that the tire is damaged by sharp objects, the air pressure is too high or too low, overloading or speeding, and excessive wear make the tread thin. All in all, it is because of various reasons that the strength of the tire is reduced, it is difficult to withstand the change of the air pressure inside the tire, and the tire suddenly ruptures.

Therefore, the best way to prevent tire blowouts is to manufacture tires that do not need to be inflated, and there are multiple air-free run-flat tires on the market. For example, solid tires, spoke tires and honeycomb tires are all air-free and run-flat tires.

The solid tire is a widely used run-flat tire. The solid tire carcass is solid and its structure is simpler than that of the pneumatic tire. Solid tires are industrial tires suitable for vehicles operating under low-speed, high-load and harsh conditions. Their safety and durability are significantly better than pneumatic tires. They are widely used in various industrial vehicles, military vehicles, construction machinery, ports and airports. Trailer vehicles and other fields. However, solid tires have poor adaptability to road surfaces and weak shock absorption capabilities, and they will feel bumpy when driving on uneven roads; because solid tires are heavier than pneumatic tires, they are only suitable for low-speed driving, so they cannot be widely used in cars.

A spoked tire is a run-flat tire consisting of a wheel, spokes and a central axle. For example, the Tweel spoke tire developed by Michelin (Michelin), its shock-absorbing rubber wheel tread distributes pressure to dozens of elastic polyurethane spokes. Because there is no gas in this wheel, it is stronger than a pneumatic tire and less prone to blowouts. The tires have already been tested on robotic wheelchairs and military vehicles, but the wheels are still too noisy to be used in cars.

Honeycomb tire is a tire that does not need to be inflated jointly invented by Resilient Technology Company of the United States and the University of Wisconsin-Madison. The developer replaces the original inflatable part with a series of hexagonal structures similar to honeycomb, so that it can play Shock absorption similar to conventional tires. The tires are resistant to improvised explosive devices and can still travel at speeds of 80 kilometers per hour after an attack. However, this type of tire is noisy when driving, has poor comfort, and has special requirements for the material of the honeycomb structure. The cost is more than 10 times that of ordinary tires, so it is difficult to promote.

Contents of the invention

(1) Technical problems to be solved

The technical problem to be solved by the present invention is to replace the inflation part of traditional pneumatic tires with lightweight porous materials, so that the tires not only have the performance of run-flat tires, but also have the elasticity of pneumatic tires, without greatly increasing the weight and manufacturing cost of the tires.

(2) Technical solution

The explosion-proof tire involved in the present invention consists of three parts: a carcass structure, a reinforcing structure and a filling material. Among them, the carcass structure mainly forms the main structure of the tire, including six parts: wear-resistant rubber surface layer, high elastic buffer layer, ordinary rubber structure layer, carcass radial layer, bead apex rubber and toe mouth protection layer; the reinforced structure layer ensures The overall strength of the tire consists of 5 parts, including thin steel belt layer, nylon belt layer, thick steel belt, crown protection layer and bead steel wire; filling materials replace the inflation space of traditional pneumatic tires, including lightweight porous rigid materials and lightweight porous elastic material.

(3) Beneficial effect

The run-flat tires filled with reinforced structures and lightweight porous materials can avoid damage from sharp objects, excessive or low air pressure, overloading or overspeeding, and tire blowouts caused by excessive wear, effectively preventing vicious traffic accidents.

According to statistics from the Traffic Management Bureau of the Ministry of Public Security, in 2015, a total of 21,017 road traffic accidents involving casualties were reported across the country, resulting in a total of 72,387 deaths. Among them, more than 20,000 people died in traffic accidents caused by tire blowouts, and the direct losses caused exceeded 100 million yuan. If run-flat tires are used, the number of traffic accidents will be greatly reduced, and the number of traffic accident deaths and property losses will be reduced.

According to statistics from the Traffic Management Bureau of the Ministry of Public Security, by the end of 2015, the number of motor vehicles in the country reached 279 million, including 172 million cars. If 25% of automobiles adopt run-flat tires, there will be a huge market demand of more than 170 million.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

Fig. 1 is a tire cross-sectional view;

Figure 2 is a partially enlarged view.

In the figure: 1. Wear-resistant rubber surface layer; 2. High elastic buffer layer; 3. Ordinary rubber structure layer; 4. Carcass meridian layer; 5. Bead wire; 6. Bead apex; 7. Toe mouth protection 8. Lightweight porous rigid material; 9. Lightweight porous elastic material; 10. Thin steel belt layer; 11. Nylon belt layer; 12. Thick steel belt layer; 13. Crown protection layer.

detailed description

The explosion-proof tire involved in the present invention consists of three parts: a carcass structure, a reinforcing structure and a filling material. The carcass structure mainly forms the main structure of the tire, including 6 parts, including wear-resistant rubber surface layer 1, high elastic buffer layer 2, ordinary rubber structure layer 3, carcass meridian layer 4, bead apex rubber 6, and toe mouth protection layer 7 Composition: The reinforced structure layer ensures the overall strength of the tire, including 5 parts including thin steel belt layer 10, nylon belt layer 11, thick steel belt layer 12, crown protection layer 13 and bead steel wire 5; the filling material replaces the traditional The inflation space of the pneumatic tire includes two parts: lightweight porous rigid material 8 and lightweight porous elastic material 9 .

The tire crown part from outside to inside is wear-resistant rubber surface layer 1, crown protection layer 13, thick steel belt 12, nylon belt 11, thin steel belt 10, ordinary rubber structure layer 3, carcass Meridian layer 4, lightweight porous elastic material 9, lightweight porous rigid material 8. A high elastic buffer layer 2 is arranged on both sides of the tire crown, a bead steel wire is arranged on the bead part, the bead steel wire is wrapped in a triangular cross-section colloid, and a toe protection layer is arranged on the tire toe part.

Wear-resistant rubber surface layer 1 has a total thickness of 5mm, and is composed of 3mm thick polyurethane rubber wear-resistant surface layer and 2mm styrene-butadiene rubber; tire crown protection layer 13 is composed of 2mm thick polypropylene fiber fabric; thick steel belt layer 12 is composed of 1.5mm thick steel belt layer Thick 3-layer bias steel wire belt; nylon belt layer 11 thickness 2mm; thin steel belt layer 10 is composed of 1mm thick 2-layer bias steel wire belt; ordinary rubber structure layer 3 is composed of 2mm thick styrene-butadiene rubber; carcass meridian Layer 4 is 1.5mm thick; lightweight porous elastic material 9 is made of 20mm thick polyurethane prepolymer; light porous rigid material 8 is made of dry paulownia wood with a density less than 0.3g/cm ³ , with a total thickness of 15mm. A high elastic buffer layer 2 is arranged on both sides of the tire crown, a bead steel wire is arranged on the bead part, the bead steel wire is wrapped in a triangular cross-section colloid, and a toe protection layer is arranged on the tire toe part.

Claims (2)

1. An explosion-proof tire, the specific features are: the crown part of the tire is successively wear-resistant rubber surface layer 1, crown protection layer 13, thick steel belt 12, nylon belt 11, and thin steel belt from outside to inside. Layer 10, ordinary rubber structure layer 3, carcass meridian layer 4, light porous elastic material 9, light porous rigid material 8; high elastic buffer layer 2 is set on both sides of the crown, and bead steel wire is set on the bead part, The bead steel wire is wrapped in a triangular cross-section colloid, and the tire toe is provided with a toe protection layer. 2. A kind of explosion-proof tire according to claim 1, concrete feature is: wear-resistant rubber surface layer 1 total thickness is 5mm, is made of 3mm thick polyurethane rubber wear-resistant surface layer and 2mm styrene-butadiene rubber; It is made of 2mm thick polypropylene fiber fabric; the thick steel belt layer 12 is made of 1.5mm thick 3-layer bias steel wire belt; the nylon belt layer 11 is 2mm thick; the thin steel belt layer 10 is made of 1mm thick 2-layer bias steel wire belt Composition; the ordinary rubber structure layer 3 is made of styrene-butadiene rubber with a thickness of 2mm; Dry paulownia wood of cm ³ with a total thickness of 15 mm.