Springs can be divided into extension springs, compression springs, torsion springs and bending springs; according to their shapes, they can be divided into disc springs, ring springs, leaf springs, spiral springs, truncated cone scroll springs and torsion bar springs. Common cylindrical springs are due to It is simple to manufacture, and can be made into various types according to the load condition, and the structure is simple, so it is the most widely used.
Generally speaking, the manufacturing materials of springs should have high elastic limit, fatigue limit, impact toughness and good heat treatment performance. Commonly used are carbon spring steel, alloy spring steel, stainless spring steel, copper alloy, nickel alloy and rubber. The manufacturing methods of springs include cold-rolling and hot-rolling methods. Cold-rolling methods are generally used for spring wire diameters less than 8 mm, and hot-rolling methods are used for spring wire diameters greater than 8 mm. Some springs need to be forced or shot blasted after they are made. Treatment can improve the bearing capacity of the spring.
As an important component in the industrial system, springs are used in a large amount and have a wide variety of types. Therefore, the production of springs is primitive hand-made and gradually moves towards automation. Ninety years ago, the spring industry had very few professional springs. With the increasing size of the spring market, professional spring equipment companies have gradually entered our country.
The coil spring is a torsion spring, a spring that accepts torsion deformation, and the working part is also tightly wound into a spiral shape. The end structure of the torsion spring is processed into a torsion arm of various shapes, rather than a hook. Torsion springs are often used for balance in machinery Widely used in industrial production such as institutions, automobiles, machine tools, and electrical appliances.
Tension spring is a helical spring that accepts axial tension. Tension springs are generally made of round cross-section materials. When not under load, the coils of the tension spring are generally tight and there is no gap.
Compression springs are helical springs that receive pressure. Most of the materials used are circular in cross-section, and springs made of rectangular and multi-stranded steel coils are generally equal-pitch compression springs. The shapes are: cylindrical, conical, medium Convex and concave shapes and a small amount of non-circular shapes, etc., there is a certain gap between the coils of the compression spring, and when subjected to an external load, the spring shrinks and deforms and stores the deformation energy. What is a torsion spring? A torsion spring uses the principle of leverage. , By twisting or rotating the elastic material with soft material and greater toughness, it has great mechanical energy.