To a large extent, the Belleville spring is replacing the cylindrical coil spring. It is commonly used in heavy machinery (such as press) and artillery, aircraft and other weapons, as a strong buffer and damping spring, as a compression spring of clutch and safety valve of automobile and tractor, as well as as as an energy storage element of motor equipment.
Disadvantages: load deviation is difficult to ensure.
The Belleville spring can be divided into three types according to the different section shape: ordinary Belleville spring (its section shape is rectangle), Belleville spring with radial groove and trapezoid section Belleville spring. The ordinary Belleville spring can be divided into two types: the one with supporting surface and the one without supporting surface. The Belleville spring with radial groove is based on the ordinary Belleville spring, and it can cut out several evenly distributed grooves along the radial direction. The grooves can be drawn out from the inner hole to the outer circle direction or from the outer circle to the inner hole direction. The trapezoid section Belleville spring can be divided into two types: the inner edge thickness is greater than the outer edge thickness and the inner edge thickness is less than the outer edge thickness There are two types of thickness of outer circle.
Because the deformation and load value of single disc spring can not meet the use requirements, it can be used in groups to form disc spring assembly (column). The typical combination mode is: composite disc spring, composite disc spring and other composite disc spring. Extension spring
What is the basic principle of butterfly spring
The Belleville spring is a special spring which is tapered in axial direction and bears load. After bearing load deformation, it stores certain potential energy. When the bolt is loose, the Belleville spring releases part of potential energy to maintain the pressure between flange connections to meet the sealing requirements. The stress distribution of Belleville spring decreases uniformly from inside to outside, which can achieve the effect of low stroke and high compensation force.
