Buffer Springs
Buffer springs are made from coiled strip steel, so that each coil nests inside the next larger coil. The springs are loaded in the axial direction under compression.
Normally, some friction can occur between the coils because the coils can touch each other. As a result, buffer springs can have a damping effect.
The characteristic of buffer springs is progressive: a buffer spring becomes "stiffer" as the compression increases. This is because the coils with the largest diameter and therefore the lower resistance become inactive earlier than the stiffer coils with a smaller diameter.
Applications
- Smaller double buffer springs are often used in scissors and gardening tools.
- Large heavy buffer springs are used in bridges and the suspension of tanks and heavy transport vehicles due to the high load.
Calculations
Calculations for buffer springs are very complex (informatie@roveron.nl). In the calculations, the thickness of the material, the pitch angle of the coils, and the diameters all play a significant role. The thickness of the strip in the buffer spring is raised to the third power in the calculation, thus having a very large effect when increasing or decreasing the possible forces in a design. For force-displacement calculations of buffer springs, it is best to contact us!
Often, based on the internal diameter, external diameter, installation height, and a desired force-displacement combination, an optimal design can be sought, taking into account the available raw materials.
