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Types of gas springs
Classification: Technical Article
Release Time:2022-08-28 15:18
As an elastic element that can perform functions such as support, buffering, braking, height adjustment and angle adjustment, its basic principle is to fill a closed cylinder with nitrogen and oil with a certain pressure, or a mixture of oil and gas, and then use The pressure acting on the piston rod or piston section causes the gas spring to push or pull. According to the structure and function of the gas spring, there are mainly free type, self-locking type, free stop, traction type and damper.
The free type (compression type) has only two states of extension (the longest length without external force) and compression (the external force is greater than the thrust of the gas spring, and the length is the shortest). Spring has two structures of constant damping and variable damping. It is widely used in automobiles, construction machinery, textile machinery, printing machinery, office furniture and other industries.
Self-locking type (lifting lockable, angle-adjustable lockable) can be locked at any position of the stroke through its internal valve. According to different internal structures, this type of element has elastic locking, compression rigid locking, tensile rigidity Locking, compression-stretching bidirectional rigid locking and other types, the self-locking type has the functions of support, height and angle adjustment at the same time, and is convenient and flexible in operation and simple in structure. Therefore, it is widely used in medical equipment, furniture, automobiles and other industries.
Free stop (balanced type) can be stopped at any position in the stroke through its special internal balance valve mechanism and reasonable external load design, but there is no additional locking force. Its characteristics are between free type and automatic type. Between locks. Mainly used in kitchen furniture, medical equipment, electronic products and other industries.
Traction (stretching) is a special type: other types are in the longest position in the free state, that is, they move from the longest position to the shortest position after being subjected to external force, while the traction type is in the longest position. The free state is in the shortest position, and runs from the shortest point to the longest point when being pulled. At the same time, there are corresponding free type, self-locking type and other products in the traction element.
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