What are the advantages and disadvantages of vacuum tires and ordinary tires?

1. A vacuum tire, as the name implies, is a tire without an inner tube. The inner wall of this tire is covered with a rubber sealing layer with a thickness of about 2 ~ 3 mm, and a self-adhesive layer made of a special mixture of unvulcanized rubber is covered under the sealing layer. The airtight layer on the inner wall of tire and bead ensures good airtightness between tire and rim, thus replacing the function of traditional inner tube. The outer tire also acts as an inner tube. After the tire is inflated, the toe and rim are closely combined and effective.

1, advantages: wear resistance. Compared with ordinary pneumatic tires, vacuum tires are more wear-resistant, have better dynamic balance performance and improve driving comfort, so they are more suitable for long-distance and high-speed driving. Self-weight is reduced, and fuel consumption is reduced. Due to the reduction of inner tube and buffer belt, the weight of tire is reduced. Moreover, the spare parts of the rim also reduce the lock ring, further reducing the weight. Replacing the whole set of tires with vacuum tires can reduce hundreds of kilograms. Vacuum tires have small driving resistance and can save 3% fuel. The reduction of driving weight and fuel consumption is an extra profit for truck drivers.

2. Disadvantages: troublesome maintenance and high cost. Once the vacuum tire bursts and leaks, it is more troublesome to maintain it. The cost of repairing a vacuum tire is much higher than that of a tire with an inner tube. Not compressive, not suitable for overloading, poor stability when the road conditions are bad. Although vacuum tires have good adaptability to flat roads such as asphalt and cement, they have poor stability in some roads with poor road conditions, such as mountain roads and construction sites.

Secondly, for ordinary tires, the internal support structure of tires is equivalent to the combination of reinforcing plies and belts. In order to ensure the strength, most spokes are made of high-performance resin materials that can keep soft. The arrangement of spokes is based on the main design principle of reducing the internal pressure when the tire is deformed, and the pressure transmission when the tire changes is realized through the arrangement of spokes with different shapes.

1, advantages: wear resistance, long service life, non-pneumatic tires are not afraid of pricking, wear resistance, low rolling resistance, and the service life is more than 3 times that of pneumatic tires. Tire aging is slow, and a heat exchanger is installed inside the tire, so that hot and cold air inside and outside the tire body can be automatically exchanged, which can effectively reduce the tire body temperature, greatly delay tire aging, and avoid tire puncture and air leakage. Good elasticity, excellent materials, special structure combined with patented technology, good performance, high resilience and good resilience.

2. Disadvantages: poor comfort, easy to bump during driving, and increase resistance, resulting in poor vehicle comfort. The bearing capacity is low and the speed cannot be too high. Due to the internal support structure, this kind of tire can't bear heavy load and high speed. Support structures are easy to be damaged because they are exposed and the structural strength of plastic materials of these polymer structures is not as strong as expected. Once the foreign matter enters the tire, it will inevitably lead to the damage of the supporting structure.