There are many classifications of airbag shock absorbers, such as rubber shock absorbers, air shock absorbers, spring shock absorbers, etc., and air springs are mainly used in automobiles. Air springs can be roughly divided into free membrane type, hybrid type, sleeve type and bladder type air spring. The structure of the rubber bladder is similar to that of a tubeless tire. The load is mainly borne by the cord. The material of the cord is the decisive factor for the pressure resistance and durability of the air spring. Generally, high-strength polyester cord or nylon cord is used, and the number of cord layers is generally 2. Layers or 4, the layers intersecting and arranged at an angle to the meridian direction of the capsule. Compared with metal springs, it has the advantages of small mass, good comfort, fatigue resistance, long service life, etc. It also has the functions of shock absorption and noise reduction.
Advantages and characteristics of the airbag shock absorber 1: adjustable spring height, load capacity and spring stiffness 2: low natural vibration frequency 3: good isolation of high-frequency vibration and noise isolation 4: available air damping effect 5: service life Longer; performance parameters: Commonly used automotive air springs are divided into four types: membrane type, hybrid type, sleeve type and bladder type. Piston and capsule form a closed system. Fill the sealed air spring with compressed gas (air pressure 0.2~0.7MPa), and use the compressibility of the gas to realize its spring effect. The airbag uses the height adjustment valve to control the air pressure in the airbag to make the stiffness of the air spring adjustable. When the load acting on the spring increases, the air pressure increases, and the stiffness of the spring increases. Conversely, when the load decreases, the stiffness of the spring increases. The air pressure drops and the stiffness decreases.