What are the types of automobile anti-skid chains?

Now it has entered the cold winter season, and many areas in the north will not melt after the snow falls, but stick to the air, forming a thick layer of ice and snow pavement. This kind of road has low adhesion coefficient and is very slippery. On the one hand, the driving ability of the car is poor when driving on it, and it can't go up when encountering a slope; On the other hand, the braking force is poor, the braking interval is greatly extended, and traffic accidents are easy to occur. Therefore, when driving under such road conditions, many people will install anti-skid chains to improve the adhesion coefficient and increase the safety performance of the car. So what is anti-skid chain? What are its varieties? What should I pay attention to when using anti-skid chains? Now let's talk about the relevant knowledge of automobile anti-skid chains.
1、 What is automobile anti-skid chain
The automobile anti-skid chain is generally made of steel chain or rubber chain, which is installed on the wheel of the automobile, and has the function of improving the wheel adhesion coefficient and preventing the wheel from slipping on the ice and snow road. Its principle is to concentrate the gravity of the vehicle on several points of the anti-skid chain, generate greater pressure, roll into the ice and snow layer and destroy it, so as to improve the adhesion coefficient, increase the friction force, make the wheels have sufficient driving force and braking force, prevent skidding, and increase the safety coefficient of the vehicle.
2、 Varieties of automobile anti-skid chains
According to the structure, the anti-skid chain can be made of iron, leather and steel rope.
1. Iron anti-skid chain
Iron anti-skid chain is the earliest anti-skid chain used in automobiles. It is made of ordinary iron chain into a special shape and wrapped on the wheel. Its advantages are good anti-skid effect, low price, and durability; The defects are loud noise, difficult disassembly and assembly, relatively heavy, and serious tire wear. It is usually applied to large trucks, construction machinery and other vehicles, and the anti-skid chain is also used by off-road vehicles that partially walk on harsh terrain, while it is rarely used in domestic vehicles.
2. Leather anti-slip chain
There are two kinds of leather anti-slip chains. One is polyurethane anti-slip chain, which is commonly known as cow tendon anti-slip chain. Its anti-slip effect is ordinary and it is not durable. It will be scrapped once or twice, but the price is cheap. It is suitable for short-term use on ordinary ice and snow roads; The other is rubber anti-skid chain, which is made of high elastic and wear-resistant rubber. It has the advantages of low temperature resistance, wear resistance, good elasticity, strong friction, good tensile strength, and can also be used for a long time. The defect is that the price is relatively expensive. Its anti-slip effect is better than that of the cow tendon anti-slip chain, but it is not as good as that of the iron chain. It is suitable for the long-term use of ordinary household vehicles.
3. Wire rope anti-skid chain
The steel wire rope anti-skid chain is a new type of anti-skid chain that has emerged in recent years. It is made of special steel wire rope and wrapped on the wheel to play a anti-skid role. Its structure is relatively simple, the device is convenient, and the service life is long. The defect is that the tire is greatly worn, and the price is also a little expensive. It can be applied to most vehicles.
3、 Precautions for the use of anti-skid chains
1. The anti-skid chains are divided into different sizes and specifications, which are suitable for different wheel hub sizes and tire widths. When purchasing, pay attention to the selection of anti-skid chains that match the wheel size;
2. The anti-skid chain must be installed on the driving wheel, and the tire pressure should be normal. It is not allowed to install the anti-skid chain on the wheel with low tire pressure. After the device is completed, the vehicle should be stopped for inspection and adjustment after driving for about 20 meters to ensure that the anti-skid chain and the tire are tightly fitted;
3. After the anti-skid chain is installed, the car should keep driving at a low speed, and the speed should not exceed 40Km/h generally, and pay attention to prevent rapid acceleration or emergency braking as much as possible;
4. The car should be equipped with anti-skid chains before encountering ice and snow roads. When the car drives into a good road, the anti-skid chains should be removed in time. When installing and removing the anti-skid chains, the car should be parked in a safe area, and necessary traffic warning signs should be set up;
5. After the anti-skid chain is applied to some models, the tire pressure monitoring installation will be abnormal and the tire pressure warning lamp will be lit. There is no need to worry about this. After the anti-skid chain is removed, the tire pressure lamp will be reset.
4、 Which is better, snow chains or snow tires?
Some people will change snow tires for cars in winter. Which is better, snow chains or snow tires? In fact, they are two different products. The anti-skid chain is only for special road conditions, and can only be used on ice and snow roads. The reaction of application is also relatively large, but the anti-skid effect is good; The scientific name of snow tire is winter tire. It is designed for ordinary tires to become hard, brittle, and have low adhesion in winter. Its characteristic is that the tread is softer, and even in severe cold weather conditions in winter, it can ensure good adhesion between the tire and the air. It has a certain anti-skid ability, and can be used in all-weather and all-road conditions without any reaction at all. My personal proposal is to change winter tyres in winter. Under ordinary urban road conditions, even if there is ice and snow, you don't need to use anti-skid chains; If you need to go to some places where the road conditions are very bad, you'd better wear anti-skid chains. Its anti-skid effect is still better.
However, on the ice and snow roads in winter, no matter the use of anti-skid chains or winter tires, it can not guarantee "absolute safety" in driving. What really guarantees safety, it also needs to have a good driving habits, such as slow driving, adhere to the distance between vehicles, early prediction, and peace and courtesy.