According to the use of tyres
For example, in China's tire national standards, American tire rim manuals, European tire rim standards, Japanese tire standards and international tire standards are classified by use, which can be divided into the following types:
Car tire is a kind of tire mounted on car. It is mainly used for high-speed driving on good road surface. The maximum speed can reach more than 200 km/h. It requires comfortable ride, low noise, good maneuverability and stability. Most tire structures adopt meridian structure. According to the requirements of driving speed, it can be divided into different series. In the standard and manual, 95 and 88 series are diagonal tires, and 80, 75, 70 and 65 series are radial tires.
Light Truck Tyres - Tyres of trucks with rims 16 inches in diameter and 9 inches or more in cross-section width. This kind of tire mainly travels on the highway, and its speed can generally reach 80-100 km/h.
Truck and bus tyres usually refer to trucks, dump trucks, special and trailer tyres with rim diameters of 18-24 inches and cross-section width of 7 inches or more. Its road surface is more complex, with good asphalt road, but also poor gravel road, dirt road, muddy road, ice and snow road, and even no road conditions, etc., driving speed generally does not exceed 80 km/h.
Construction Machinery Tire - Construction Machinery Tire is installed on special engineering machinery vehicles, such as loaders, bulldozers, excavators, levelers, roller and stone work machines. The driving speed is not high, but the pavement conditions and load performance are demanding. Tyres are mainly diagonal tire structure, but the French company Michelle (Cantonese, Mandarin Michelin) also uses meridian structure. According to the classification of tire section width, it can be divided into two series: standard tire and wide-base tire.
Off-road vehicle tyres - Off-road vehicles are driven by front and rear wheels. Off-road vehicle tyres are mainly driven on bad roads such as desert, muddy ground, soft soil or other pavement-free roads, requiring higher passing performance of tyres. Off-road tyres often use low-pressure tyres, and some use pressure-regulating tyres to adjust the tire pressure according to road conditions. In order to improve cross-country trafficability, measures such as widening the tire section and rim width and reducing rim diameter are generally adopted to increase the grounding area and reduce the grounding pressure. In addition to diagonal tire structure, radial tire structure is also used.
Agricultural and forestry machinery tyres - agricultural tyres are mainly used in tractors, combines and agricultural machinery vehicles. Forestry machinery tyres are mounted on forestry tractors and forestry machinery for forestry cutting, skidding, shoveling and excavation. These two tires are characterized by low speed requirements, but their use conditions are harsh. They often travel in poor conditions of field roads and hard stubble or stone hill roads, or even road without road surface, and tires are vulnerable to scratches or cuts. Another characteristic is that the tire has short mileage, but long service life. Therefore, it is required that the tire has good flexural crack resistance and aging resistance. The main structure of tire is skew structure, but it also uses meridian structure.
Industrial vehicle tyres - mainly pneumatic tyres, semi-solid tyres and solid tyres for industrial vehicles. Distribution battery tyres, forklift tyres and flat tyres, etc.
Motorcycle tyres - Tyres for motorcycles. Including motorcycle tires, moped tires and Small-Wheel motorcycle tires.
Aerial tyres - pneumatic tyres used in aircraft.
Special vehicle tyres - including gun tyres, tank tyres, armored tyres, desert tyres, explosion-proof vehicle tyres, etc.
Wheel tyres - pneumatic tyres for bicycles, tricycles and trolleys.
Electric wheel tyres - Tyres for electric bicycles.
According to the structure design points
It is divided into oblique tire and radial tire. The fundamental difference between meridian and diagonal tires lies in the carcass. The matrix of the diagonal tire is the diagonal cross cord layer, while the matrix of the meridian tire is the polymer multi-layer cross material. The top layer of the diagonal tire is the steel belt cord woven by steel wire, which can reduce the probability of the tire being punctured by foreign bodies.
The cord of the bias tire is arranged by the cross of the diagonal, so it is named. It is characterized by the high strength of tread and sidewall, but the stiffness of sidewall is larger and the comfort is poor. Because of the large interlayer movement and friction of cord at high speed, it is not suitable for high speed driving. With the continuous improvement of radial tire, bias tire will be basically eliminated.
The cord alignment direction of radial tire is consistent with the radial section of tire, and the cord layer of radial tire is equivalent to the basic skeleton of tire. In order to ensure the stability of the cord, there are several layers of belt layers (also known as hoop layer) made of high strength and non-stretchable materials outside the tire. The direction of the cord is at a larger angle to the meridian section. In terms of design, diagonal tire has many limitations, such as the strong friction of the crossed cord, which makes the carcass easy to heat up, accelerates the wear of tread, and its cord layout can not provide good maneuverability and comfort; while the steel cord in radial tire has better flexibility to adapt to the irregular impact of the road surface, and durable, and its cord knot. The structure also means that there is much less friction than the diagonal line in the driving of the car, thus obtaining a longer tread life and a longer tread life.