First, the free gas spring (support rod) (Lift gas spring) is the most widely used gas spring. It mainly plays a supporting role, with only the shortest and longest positions, and cannot stop by itself during the stroke. It is the most widely used in automobile, textile machinery, printing equipment, office equipment, construction machinery and other industries. Free-type gas springs have been widely used in automobiles, construction machinery, printing machinery, textile equipment and other industries due to their lightness, stable operation, convenient operation and favorable price. Or alpine environment, acidic or alkaline environment, etc.
Second, the self-locking gas spring (adjuster, controllable gas spring) (Lockable gas spring) is the most used in medical devices. This kind of gas spring can be stopped at any position in the stroke with the help of some release mechanisms, and has a large locking force (can reach more than 10000N) after stopping.
Third, the damper (Damper) is used more in automobiles and medical equipment, and its characteristic is that the resistance changes with the speed of operation. It can significantly dampen the speed of the connected mechanism. The damper is mainly used for buffering, and its biggest feature is that the force of the gas spring changes with the movement speed. When the action point of the force guiding the gas spring moves relatively fast, the resistance of the spring increases significantly, while when the action point moves slowly, there is almost no resistance. Dampers are mainly used in washing machines, refrigerators and other industries.
Fourth, traction gas springs (gas traction springs) (Gas traction springs) are a special gas spring: other gas springs are in the longest position when they are in a free state, that is, they are in the longest position after being subjected to external force. The long position moves to the shortest position, while the free state of the traction gas spring is in the shortest position, and runs from the shortest position to the longest position when being pulled. There are also corresponding free type and self-locking type in the traction gas spring.
In addition, there are ordinary steel gas springs and stainless steel gas springs in terms of materials. The amount of ordinary steel gas springs is the largest, and stainless steel gas springs are mostly used in places with harsh environmental requirements, such as food machinery, medical equipment, military industry, high temperature characteristics and applications.
Judge the quality of a gas spring
Judging the quality of a gas spring is mainly from the following aspects: first, its sealing, if the sealing is not good, there will be oil leakage, air leakage and other phenomena during use; secondly, the accuracy, such as the need for 500N For gas springs, the force error produced by some manufacturers does not exceed 2N, and the products of some manufacturers may be far from the actual required 500N; again, the service life is calculated by the number of times it can be fully expanded; The force value changes during the stroke. Ideally, the force value of the gas spring should remain the same throughout the stroke. However, due to design and processing factors, the force value of the gas spring during the stroke inevitably changes. The magnitude of its change is an important criterion for measuring the quality of a gas spring. The smaller the magnitude of the change, the better the quality of the gas spring, and vice versa!
