The relationship between the force value of the gas spring and the speed

The force value of the gas spring is the change in the force value of the gas spring during the stroke, and the gas spring under ideal conditions should maintain the same force value 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!

What are the types of commonly used gas springs? According to the movement form and application field of gas springs, gas springs can be divided into free gas springs, self-locking gas springs, random stop gas springs, traction gas springs, dampers, etc.

The biggest difference between a gas spring and a general mechanical spring plug: a general mechanical spring, its spring force changes greatly with the movement of the spring, while the force value of the gas spring remains basically unchanged throughout the movement stroke. The basic principle is the airtight cylinder is filled with inert gas or oil-air mixture with a certain pressure difference with the external atmospheric pressure, and then the free movement of the gas spring is completed by using the pressure difference acting on the cross section of the living rod.

The pneumatic support rod is a new type of elastic component with inert gas as the working medium. It has many advantages such as no pollution and no noise; large lifting force and small volume; large working stroke and small lifting force change; beautiful appearance, stable operation, convenient installation and many other advantages , is the replacement product of mechanical spring. According to the purpose, it can be divided into three categories: support gas spring (commonly known as support rod), lockable gas spring (commonly known as angle adjuster) and damping lifter (commonly known as lifter).

The quality of a gas spring is mainly judged from the following aspects:

The first is its sealing performance. If the sealing performance is not good, there will be oil leakage and air leakage during use. The second is the accuracy. For example, a gas spring of 500N is required. The force error produced by some manufacturers does not exceed 2N. The gas spring of some manufacturers may be far from the actual required 500N. The third is the service life, the service life of the gas spring is calculated by the number of times it can be fully retracted.