Technology and application of extension spring

Generally, the material of axial tension spring is a kind of tension spring. In the case of no load, the tension spring between the coils is generally tight and there is no gap.
Both ends of the tension spring can be fixed to other components. When these components are separated, the tension spring can connect all the components together again. The tension spring reverses when it is extended or pulled apart. When the ends of the stretch springs are pulled apart, the springs try to pull them back together. Like compression springs, tension springs also absorb and store energy. But unlike compression springs, most tension springs are usually under a certain degree of tension, even without any load. This initial tension determines the tightness of the tension spring coil without any load.

Tension spring can absorb and store energy, and it can also resist tension. The contact tightness of adjacent coils is determined by the initial tension. The initial tension of the spring can be controlled to meet the specific application requirements. The rings of the tension spring are closed together to resist tension. Under no-load condition, these coils are usually close together, and the retraction of the tension spring includes a hook, a small hole or other geometric shape interface for fixing to the connected components. They often provide resilience to components that are stretched in the starting position.

Applications of extension springs include the inside and outside of motor vehicles, garage door devices, vise clamps, vaporizers, medical breathing equipment, motion control, medical mobile equipment, hand tools, home care equipment, shock absorbers, pump springs, mechanical and electronic protection hardware, fluid control valves, mechanical aerospace components, actuators, and switchgear. There are many types of tension springs, from small medical and health equipment to mechanical brake springs in the field. For the application requirements of tension spring, you can specify various types of pull ring and hook. Close contact between adjacent coils produces an initial tension, which helps to control load and stiffness.