German schwerdtle springs schwerdtle models schwerdtle prices

schwerdtle springs consist of tension springs and connecting springs. The pitch and helix direction of the tension springs and connecting springs are identical. A special fixture is used to clamp one end of the tension spring and screw it into the connecting spring. The other end of the tension spring is then rotated and fitted onto the other end of the connecting spring. Rotational force is used to screw the connecting spring into the interior of the tension spring, forming a ring spring. The utility model ring spring does not affect the shape and elasticity of the connection point, and the secure connection is applied in various situations requiring ring springs. A ring spring is composed of alternating stacked washer-like spring steel discs with inner conical surfaces and outer cylindrical surfaces, and washer-like spring steel discs with inner cylindrical surfaces and outer conical surfaces. The number of pairs of inner and outer rings in the ring spring is determined based on the magnitude of the load it bears and the deformation requirements. Ring springs are used in applications with limited space that require strong buffering.

schwerdtle spring mechanical principles

A ring spring is formed by the mating of an outer ring with an inner conical surface and an inner ring with an outer conical surface. The number of pairs of outer rings is determined by the magnitude of the load and the deformation requirements. Ring springs are commonly used in applications where spatial dimensions are limited but strong buffering is required. A ring spring consists of many pairs of inner and outer rings. If damaged or worn, it is not necessary to replace all components; only the individual discarded rings need to be replaced, making repair easier and more economical. Since there is significant friction on the contact surfaces when the outer and inner rings slide relative to each other along the mating cones, the axial force during loading is balanced by surface pressure and friction. This effectively reduces the effect of the axial load, thereby increasing the spring stiffness. During unloading, friction hinders the recovery of the spring's elastic deformation, thus effectively reducing the spring force. The characteristic curve of a ring spring during one loading and unloading cycle is OABO. Without the effect of friction, it would be OC. During unloading, the characteristic curve switches from point B, rather than from point E, due to the reduction caused by spring elastic hysteresis. Ring spring: A spring composed of alternating stacked washer-like spring steel discs with inner conical surfaces and outer cylindrical surfaces, and washer-like spring steel discs with inner cylindrical surfaces and outer conical surfaces. The number of pairs of inner and outer rings in the ring spring is determined based on the magnitude of the load it bears and the deformation requirements.

schwerdtle spring structure and principles

The torsion bar spring itself is a torsion bar made of spring steel. The cross-section of the torsion bar is typically circular, with a few being tubular or rectangular. The shapes of its two ends can be made as splines, square, hexagonal, or cylindrical with flat surfaces, so that one end is fixed to the vehicle frame and the other end is fixed to the suspension arm, which is connected to the wheel. One end of the torsion bar spring is connected and fixed to the vehicle frame, and the other end is connected to the wheel via the suspension arm. When the wheel encounters a ground obstacle and jumps upward, the wheel drives the suspension arm to rotate around the torsion bar axis by a certain angle, causing the torsion bar to undergo torsional deformation (elastic deformation). Meanwhile, the elastic deformation energy stored by the torsional deformation of the torsion bar is released when the wheel leaves the obstacle, allowing the force transmission mechanism and the wheel to quickly return to position. During the manufacture of torsion bar springs, the torsion bar is pre-twisted to produce a permanent torsional deformation, giving it a certain prestress. The direction of the pre-applied torsion is the same as the direction of torsion when the torsion bar is installed and working on the vehicle, with the aim of reducing the actual stress during operation and extending service life. Note that left and right torsion bars are not interchangeable.

schwerdtle spring classification

1) ISO international standard type: ISO gas springs are the most common typical type of gas springs. All technical parameters comply with the ISO11901 international standard for gas springs and China's national standards. Type B gas springs also comply with the gas spring standards of companies such as FORD-WDX3560 (Ford), GM-M-150 (General Motors), and Renault (Renault). 2) Compact structure type: The compact structure type is also called Type J gas spring, which is one of the product series of gas springs, fully named Type J compact structure gas spring. Type J compact structure gas spring is a type popular among mold designers. Compared with the B series gas springs, it has a shorter cylinder base length, resulting in a shorter total length, which can reduce the design height of the mold, making it one of the preferred types of gas springs for molds. 3) Ultra-compact type: This is the model with the shortest base length among gas springs worldwide. At the same time, its outer diameter is one size smaller than other types of gas springs (except for Type T extra-slim structure type), but the piston rod diameter is the same, resulting in a small size and high force. When the working stroke requirement is not too long, the performance of Type C gas springs is no inferior to that of ISO standard type gas springs. 4) Extra-slim structure type: This is the most compact type in terms of cylinder diameter among gas springs. It features piston sealing, and its outer diameter is even smaller than that of the ultra-compact type. The working stroke of the Type H gas spring series generally does not exceed 50mm, and its performance in all aspects is no inferior to that of Type C gas springs.

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