What are the advantages of disc springs compared to cylindrical helical springs?

To meet the operational needs of some products, people invented disc springs. There are not many types of Belleville springs on the market, and Belleville spring washers, also known as Belleville spring washers, were invented by the French over a hundred years ago. The appearance of the disc spring is a conical disc. Compared to traditional springs, it has other functions, such as a short stroke, simple operation, and easy maintenance. Now let me introduce the details of the disc spring.

　　Function of the disc spring: The shape of the disc spring is a conical disc, which is different from traditional springs. It is fully functional, has a large load capacity, a short stroke, requires little space, is convenient for combined use, easy to maintain and replace, has high economic safety, and is suitable for small spaces and heavy loads in precision heavy machinery. Its compression stroke is in the range of large compression strokes.10%to75%Based on different cross-sectional shapes, disc springs can be divided into three categories: including ordinary disc springs(with a rectangular cross-section), disc springs with radial grooves, and trapezoidal cross-section disc springs. Ordinary disc springs can be divided into two categories: supported and unsupported. Disc springs with radial grooves are based on ordinary disc springs, with several evenly distributed grooves along the radial direction. The grooves can open in the direction from the inner hole to the outer circle or from the outer circle to the inner circle. Trapezoidal cross-section disc springs can be divided into two types: those with a thickness of the inner edge greater than that of the outer edge and those with a thickness of the inner edge less than that of the outer circle. Since the deformation and load value of a single disc spring cannot meet the usage requirements, they can be used in groups to form disc spring assemblies.(Column). A typical combination is: laminated disc springs, composite disc springs, and other combined disc springs.

　　Compared to cylindrical helical springs, disc springs have the following advantages: 1Load-The deformation curve is nonlinear.2Disc springs are thinner, easy to form and assemble, and can be assembled and replaced like building blocks, making maintenance convenient.3The stiffness of radial groove disc springs is zero. This can be used in situations where the spring force is basically stable within a certain deformation range.4The vibration absorption performance of disc springs is not lower than that of cylindrical helical springs, and disc springs are largely replacing cylindrical helical springs. They are commonly used in heavy machinery(such as presses), artillery, aircraft, and other weapons, as powerful cushioning and damping springs, as compression springs for clutches and safety valves in cars and tractors, and as energy storage components in automotive instruments.

In general, disc springs perform well under high load conditions with very high axial space requirements. Under these conditions, helical springs are usually impractical and may not even be used. Friction should be considered in disc spring assemblies, especially in disc spring assemblies with parallel devices. Sliding friction will occur on the adjacent moving surfaces of Belleville springs, so when loading a stack of disc springs, the deflection will lag as the stack is unloaded. Generally, this characteristic can be used in impact or oscillating load systems that require damping.