Sharing useful information, let you understand the principle of disc springs in one minute.

　　Disc spring, also known as Belleville washer, was invented by the Frenchman Belleville. A disc spring is a washer-type spring with a conical cross-section made of metal sheets or forged blanks. What is the principle of disc springs? Let's analyze it.

　　A disc spring is a special type of spring that is conical in shape and bears loads axially. After bearing loads and deforming, it stores a certain amount of potential energy. When the bolt loosens, the disc spring releases part of the potential energy to maintain the pressure between the flange connections, meeting sealing requirements. The stress distribution of the disc spring decreases uniformly from the inside out, achieving low travel and high compensation force.

　　What are the advantages of disc springs compared to other springs? Let's analyze it.

　　1. Disc springs can bear large loads in a very small space. Compared to other types of springs, disc springs have a greater deformation energy per unit volume, providing good cushioning and shock absorption capabilities, especially when using layered combinations, where the effect of absorbing impacts and dissipating energy is more pronounced due to surface friction resistance.

　　2. Disc springs have variable stiffness. By changing the ratio of the conical height to the disk thickness, different spring characteristic curves can be obtained, which can be linear, increasing, decreasing, or combinations of these. Additionally, variable stiffness characteristics can be achieved through different combinations of disks of varying thickness or laminated disks with different numbers of disks.

　　3. Disc springs can achieve different load capacities and characteristic curves by changing the number of disks or the combination form of the disks, allowing for a wide range of applications for each size of disk, making spare parts preparation and management easier.

　　4. In composite springs bearing large loads, each disk is smaller in size, which is beneficial for manufacturing and heat treatment. When certain disks are damaged, they can be replaced individually, making maintenance and repair easier.

　　5. Properly designed and manufactured disc springs have a long service life.

　　6. Because disc springs are annular, the force is transmitted concentrically.

　　Due to these advantages, disc springs are often used as powerful cushioning and damping devices in heavy machinery, aircraft, cannons, and other machines or weapons. They are also used as clamping devices in clutches, safety valves, pressure relief valves, etc.

　　What are the characteristics of disc springs? Let's analyze it.

　　1. High rigidity, strong cushioning and vibration absorption ability, can bear large loads, small deformation, suitable for situations with small axial space requirements.

　　2. Due to variable stiffness, this type of spring has a wide range of nonlinear characteristics.

　　3. Using the same disc spring in different combinations can allow the spring characteristics to vary over a large range. It can be combined by folding and overlapping, or by compounding different thicknesses and sheets. When overlapping, the more springs there are, the greater the load for the same deformation.