German federntechnik springs federntechnik models federntechnik prices

federntechnik springs are conical disc-shaped and can be used individually or in series or parallel combinations. They withstand static or dynamic axial loads at the upper inner edge and lower outer edge, deforming under compression until flattened to store energy as a live load. When necessary, they automatically convert into additional compressive load required for sealing, reducing the continuous tightening requirements for gaskets and packing. Disc springs are special springs that are conical in the axial direction and bear loads; after deformation under load, they store potential energy. When bolts loosen, the disc spring releases part of the potential energy to maintain pressure between flange connections to meet sealing requirements. The stress distribution of disc springs decreases uniformly from the inside out, achieving high compensation force with low travel.

federntechnik spring structure

The torsion bar spring itself is a torsion bar made of spring steel. The cross-section of the torsion bar is usually circular, with a few being tubular or rectangular. Its ends can be shaped as splines, square, hexagonal, or cylindrical with flat surfaces, so that one end is fixed to the frame and the other end is fixed to the suspension arm, which is connected to the wheel.

federntechnik spring features and functions

1) Wide stiffness range, strong buffering and vibration absorption capacity, and high deformation energy per unit volume of material. 2) Has variable stiffness characteristics. Stiffness can be corrected by changing the combination of wave peak height, width, and thickness. Stiffness can also be adjusted by varying the number of stacked discs. 3) Compared with disc springs, it has advantages such as high strength, good flexibility, and strong impact resistance. 4) Compact structural dimensions, requiring less installation space under the same theoretical parameter conditions. Functions: (1) Control mechanical motion, such as valve springs in internal combustion engines and control springs in clutches. (2) Absorb vibration and impact energy, such as buffer springs under car and train carriages, and vibration-absorbing springs in couplings. (3) Store and output energy as power, such as clock springs and springs in firearms. (4) Used as force-measuring elements, such as springs in force gauges and spring scales. The ratio of load to deformation of a spring is called spring stiffness; the greater the stiffness, the harder the spring. Springs are elastic elements widely used in the mechanical and electronic industries. When loaded, springs produce large elastic deformations, converting mechanical work or kinetic energy into deformation energy. After unloading, the deformation disappears and the spring returns to its original state, converting deformation energy back into mechanical work or kinetic energy.

federntechnik spring applications

To a large extent, disc springs are replacing cylindrical helical springs. They are commonly used in heavy machinery (such as presses) and weapons like cannons and aircraft as powerful buffering and vibration-damping springs, as clamping springs for automobile and tractor clutches and safety valves, and as energy storage elements for mobile devices. Disadvantage: Load deviation is difficult to guarantee. Disc springs can be divided into three categories based on cross-sectional shape: ordinary disc springs (rectangular cross-section), disc springs with radial grooves, and trapezoidal cross-section disc springs. Ordinary disc springs are divided into those with support surfaces and those without. Disc springs with radial grooves are based on ordinary disc springs, with several uniformly distributed slots cut radially; slots can be cut from the inner hole toward the outer circle or from the outer circle toward the inner hole. Trapezoidal cross-section disc springs can be divided into two types: those with inner edge thickness greater than outer edge thickness, and those with inner edge thickness less than outer edge thickness. Since the deformation and load values of a single disc spring often fail to meet usage requirements, they can be used in groups to form disc spring assemblies (columns). Typical combinations include: stacked disc spring assemblies, compound disc spring assemblies, and other disc spring assemblies. Compared with cylindrical helical springs, disc springs have the following characteristics: 1) The load-deformation characteristic curve is non-linear. 2) Disc springs are thin and easy to form assemblies, allowing modular assembly and replacement, thus facilitating maintenance. 3) Disc springs with radial slots have zero stiffness characteristics. This characteristic can be applied in situations where the spring force is required to remain basically stable within a certain deformation range. 4) The vibration absorption performance of disc springs is no lower than that of cylindrical helical springs. When using stacked combinations, the friction between disc spring sheets provides greater damping, dissipating impact energy.

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