Tires are an important guarantee for car driving. Ordinary pneumatic tires often have accidents such as puncture and deformation during daily driving. Now a non-pneumatic tire has been developed, which has the characteristics of maintenance-free and puncture-free. Since there is no need for inflation of traditional tires, non-pneumatic tires completely solve the problem of traditional pneumatic tires that are easy to leak and blow out.
What are the advantages and disadvantages of non-pneumatic tires
In 2005, Michelin launched the world's first non-pneumatic tire called tweel.
The introduction of tweel has completely changed the practice of modern tires that must be supported by compressed air. Instead, the tire and rim are integrated. The mesh support structure radiating from the side of the tire is used to provide the rigidity of the entire tire.
The mesh structure varies from company to company. Regardless of the structure, its functions are the same, providing support for the tire, and at the same time reducing the vibration of the tire through the deformation of the support structure to achieve the goal of improving comfort.
As for the tread, the structure of the existing tire is still maintained. Simply put, it can be considered that the internal support structure of a non-pneumatic tire is equivalent to the combination of the ply and the belt after strengthening. In order to ensure the strength,
The materials of these spokes are mostly made of high-performance resin materials that can maintain softness. The arrangement of the spokes is based on the main design principle of reducing the internal pressure when the tire is deformed. The spokes of different shapes are arranged to achieve pressure transmission when the tire changes. .
Disadvantages of non-pneumatic tires
1. Loud noise
Due to the lack of the inflatable part of the traditional tires, driving on the road with bad road conditions is very noisy and has poor shock absorption performance.
2. High cost
Due to the use of the latest technology, the manufacturing cost is much higher than that of traditional tires, and the shape is poor.
3. Poor comfort
It is prone to bumps during driving and at the same time increases resistance, resulting in poor vehicle comfort.
4. The load bearing is low and the speed cannot be too high
Due to the internal support structure, this type of tire cannot withstand heavier loads and higher speeds.
5. The supporting structure is easily damaged
Because the support structure is exposed, and the structural strength of the plastic material of these polymer structures is not as strong as imagined, once foreign bodies enter the tire, it will inevitably cause damage to the support structure.
Advantages of non-pneumatic tires
1. Wear resistance and long service life
Non-pneumatic tires are not afraid of sticking, wear-resistant, low rolling resistance, and their service life is more than 3 times that of pneumatic tires.
2. Tire aging is slow
The inside of the tire is equipped with a heat exchanger to automatically exchange hot and cold air inside and outside the carcass, which can effectively reduce the temperature of the carcass and greatly delay the aging of the tire.
3. It can avoid puncture and air leakage
Since there is no need for inflation of traditional tires, non-pneumatic tires completely solve the problem of traditional pneumatic tires that are easy to leak and blow out.
4. Good flexibility
Excellent materials and special structure coupled with patented technology have good performance, high rebound rate and good rebound performance.