Germany HAHN-Gasfedern springs HAHN-Gasfedern models HAHN-Gasfedern prices

HAHN-Gasfedern spring is a special type of extension spring, suitable for applications with large elongation and constant load. Constant-force springs consist of spiral metal strips; the inner side of the strip is curved so that each coil wraps tightly around the inner coil. When the metal strip is stretched (twisted), internal stress resists the load force, similar to ordinary extension springs, but the spring rate remains nearly constant (zero). See the load/torsion diagram. In use, an ID is typically used to wind this spring tightly onto a drum, with its free end connected to the load, acting like a counterweight. Alternatively, the free end can be fixed, allowing the spring itself to provide the working force, similar to carbon brushes in electrical devices.

HAHN-Gasfedern 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 fewer instances being tubular or rectangular. Its ends can be shaped as splines, square, hexagonal, or cylindrical with flat surfaces, allowing one end to be fixed to the vehicle frame and the other to the suspension arm, which connects to the wheel.

HAHN-Gasfedern spring features and functions

1) Wide stiffness range, strong buffering and vibration absorption capacity, high deformation energy per unit volume. 2) Features variable stiffness characteristics. Stiffness can be adjusted by changing combinations of wave peak height, width, and thickness. Stiffness can also be regulated by varying the number of stacked discs. 3) Compared to disc springs, it offers advantages such as high strength, good flexibility, and strong impact resistance. 4) Compact structural dimensions, requiring less installation space under similar theoretical parameters. Functions: (1) Control mechanical motion, such as valve springs in internal combustion engines and control springs in clutches. (2) Absorb vibration and shock 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 dynamometers and spring scales. The ratio of load to deformation in a spring is called spring stiffness; the higher the stiffness, the harder the spring. Springs are elastic components widely used in the mechanical and electronics industries. Under load, springs undergo significant elastic deformation, converting mechanical work or kinetic energy into deformation energy. Upon unloading, the deformation disappears and the spring returns to its original state, converting deformation energy back into mechanical work or kinetic energy.

HAHN-Gasfedern spring applications

1) For blacksmiths: Since leaf springs are made of higher-quality steel, they are a preferred material for blacksmiths. In countries like Nepal, Bangladesh, the Philippines, and Pakistan, where traditional blacksmithing still produces many tools, discarded car leaf springs are often used to make knives and other tools. 2) Used in trampolines: Leaf springs have replaced traditional coil springs in some trampolines (known as soft-edge trampolines), improving user safety and reducing the risk of concussion. Leaf springs are spaced around the frame 'legs', branching from the base frame to suspend the jumping mat, thereby providing elasticity. 3) Used in clutches: The common 'diaphragm' in automotive clutches is a type of leaf spring.

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