The secret of gas spring structure
Gas spring (gas? Spring) is an accessory that can support, cushion, brake and adjust height and angle. At present, this product has been widely used in medical devices, automobiles, furniture, textile equipment, processing industry and other fields. ? According to different characteristics and application fields, gas springs are also called support rods, angle adjusters, pneumatic rods, dampers and so on. The basic principle of gas spring is to press inert gas and oil or oil-gas mixture into a closed cavity. ? According to the structure and function of gas spring, gas spring mainly includes free gas spring, self-locking gas spring, free gas plug spring, traction gas spring and damper.
Air prop is actually a layman's word. We are used to calling them support rods and gas springs in the industry, while air pillars are commonly known by people in other industries only from their own functions and structures. From now on, support rods are widely used, from automobile and motorcycle industry, machinery industry and electronics industry to transportation, fitness and medical equipment. Many factory workers don't know much about their installation methods. One advantage of gas spring is its simple installation. Gas springs generally have joints at both ends. There are many specifications of joints, but they all have their own characteristics, usually screws, nuts, or directly threaded teeth. Then your equipment should have a threading hole that meets his size. The most important thing is that the piston rod must be downward and the cylinder body must be upward when the gas spring is installed up and down, which conforms to the working principle of the gas spring. Pneumatic damping groove, with it, can produce gradual resistance, so that the hydraulic rod slowly expands and contracts. Making this damping groove requires special equipment, and only a professional pneumatic rod factory can process it.
Gas spring is an elastic element with gas and liquid as working medium, which consists of pressure pipe, piston, piston rod and several connectors, and is filled with high-pressure nitrogen. Because the piston has a through hole, the gas pressure at both ends of the piston is equal, but the cross-sectional areas at both sides of the piston are different, one end is connected with the piston rod and the other end is not connected. Under the action of gas pressure, the pressure to the side with small cross-sectional area is generated, that is, the elastic force of the gas spring. The elastic force can be set by setting different nitrogen pressures or piston rods with different diameters. Unlike mechanical springs, gas springs have nearly linear elastic curves. The elastic coefficient x of standard gas spring is between 1.2 ~ 1.4, and other parameters can be defined flexibly according to requirements and working conditions.
Classification of gas springs
First, the free gas spring (support bar) (lift? Gas? Spring is the most widely used gas spring. It mainly plays an auxiliary role, with only the shortest and longest positions, so it can't stop itself during the journey. Widely used in automobile, textile machinery, printing equipment, office equipment, construction machinery and other industries. Free gas spring has been widely used in automobile, construction machinery, printing machinery, textile equipment and other industries because of its light weight, stable work, convenient operation and favorable price. Or cold environment, acidic or alkaline environment, etc.
Second, the self-locking gas spring (angle adjuster, controllable gas spring) (lockable? Gas? Spring) is widely used in medical devices. With the help of some release mechanisms, this kind of gas spring can stop at any position in the stroke, and after stopping, it has a great locking force (up to 10000N or more).
3. Free stop gas springs (friction gas springs and balance gas springs) are mainly used in kitchen furniture, medical equipment and other fields. Its characteristics are between free gas spring and self-locking gas spring: it can stop at any position in the stroke without any external structure, but there is no extra locking force. Mainly through the controller (handle or cable) to achieve the effect. It can also be achieved through the expansion and contraction of the piston rod. When it is stopped at the ideal position by the controller, the valve will be closed independently and the piston rod will be locked at the required position? . When locking occurs, locking can be achieved. However, if the locking force is exceeded, the locking function will no longer be effective.
Four, swivel chair gas spring (pneumatic rod) is mainly used for swivel chair position adjustment. It is characterized by controllability and large demand.
Through the above discussion on the secret of gas spring structure, we know how our gas spring works, and also know that gas spring plays a great role in our industry and the movement of high-power machinery. It is precisely because of the magical structure of gas spring that we can create many things that human beings can't create at all and improve our usual production efficiency. Through the introduction, we also know something about the power of gas spring, so we hope it can be more applied to the places we need in our lives, rather than going astray.
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