Compression springs work by following Hooke’s law, which states that the force exerted by a spring is proportional to its change in length. When a compression spring is compressed, it stores potential energy and tries to return to its original length. The amount of force and energy depends on the spring’s material, size, shape, and stiffness.
Different shapes and sizes of compression springs suit different purposes. Compression springs are essential for many mechanical systems, such as car suspensions, industrial machines, and household appliances.
Helical Compression Springs #
Helical compression springs are the most common type of compression springs. They are made of a helical coil of steel wire. These springs store potential energy when compressed and release it when the compressive force is removed. Helical compression springs are the most commonly used in a wide range of applications
Variable Pitch Compression Springs #
Variable pitch compression springs are designed with varying pitch or spacing between the coils. This design allows the spring to exert different amounts of force at different stages of compression. Variable pitch compression springs are often used in applications where a progressive or variable force is required.
Variable Diameter Compression Springs #
Variable diameter compression springs are a type of spring that has two or more diameters in a single spring.
Conical Compression Springs #
Conical compression springs, also known as tapered springs, have a cone-shaped design. They are characterized by the varying diameter of the coils, which allows them to provide different rates of compression. This design allows conical compression springs to exert a more uniform force throughout their compression range. These springs are commonly used in applications where space is limited, such as in electrical switches, valves, and small mechanical devices.
Concave or Hourglass Springs #
Concave compression springs, also known as hourglass springs or barbell springs, have a unique shape with a smaller diameter in the center and larger diameters at both ends. This design provides a variable rate of compression, making them suitable for applications requiring a gradual increase in force. Hourglass compression springs are commonly used in heavy-duty machinery, shock absorbers, and automotive suspensions.
Barrel or Convex Compression Springs #
Barrel springs, also known as convex springs, are a type of compression spring that has a larger diameter in the center than at the ends. This shape gives them several advantages over traditional compression springs, including: increased load capacity, reduced buckling, more compact design. Barrel compression springs are commonly used in heavy-duty machinery, shock absorbers, and automotive suspensions.