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Coil springs are helical springs made of spring steel wires. Coil spring type is more, according to the appearance can be divided into ordinary cylindrical coil spring and variable diameter coil spring; according to the direction of the helix can be divided into left-handed and right-handed springs. Cylindrical coil spring structure is simple, easy to manufacture, the most widely used, its characteristic line is straight, can be used for compression springs, extension springs and torsion springs. When the load is large and the radial size is limited, two compression springs of different diameters can be used together as a combination spring.
Variable-diameter helical springs include conical helical springs, worm coiled helical springs and medium concave helical springs. Conical coil springs have better cushioning properties and can withstand larger loads. Worm wound coil springs can store more energy and withstand larger loads, but the manufacturing process is more complex. The performance of concave coil springs is similar to that of conical coil springs, which are mostly used in cushions and mattresses. Spring steel wire has round and rectangular carrier surfaces, with round cross sections being the most commonly used.
Features of coil springs
1. Precise adjustment performance. That is, the relationship between force and displacement is very sensitive;
2. Good flexibility, i.e. relatively wide range of deformation;
3. Easier to manufacture;
4. Compact structure;
5. High energy rate.
Examples of characteristics:
Conical coil springs have better cushioning properties and can withstand larger loads.
Worm wound coil springs can store more energy and withstand larger loads, but the manufacturing process is more complex.
Medium concave coil springs have similar properties to conical coil springs and are used in cushions and mattresses.
The spring steel wire has round and rectangular load surfaces, with round cross sections being the most commonly used.
Coil springs, i.e. torsion springs, are springs subjected to torsional deformation, and their working part is also densely wound into a spiral shape. The end structure of torsion springs is machined into various shapes of torsion arms instead of hook and loop. Torsion springs are commonly used in balance mechanisms in machinery and are widely used in automobiles, machine tools, electrical appliances and other industrial production.