German kraemer springs kraemer models kraemer prices

kraemer springs are helical springs that withstand compressive forces. The cross-section of the material used is mostly circular, but rectangular sections and multi-strand steel cables are also used. Springs generally have equal pitch. Shapes of compression springs include: cylindrical, conical, convex, concave, and a small number of non-circular shapes. There is a certain gap between the coils of the compression spring. When subjected to external loads, the spring contracts and deforms, storing strain energy. Compression springs provide resistance to external compressive loads. Compression springs utilize multiple open coils to provide resistance to external loads (such as gravity pressing down on wheels, or body weight pressing on a mattress). That is, they push back to resist external pressure. Compression springs are generally wound with metal wire at equal pitch and have a fixed wire diameter. In addition, there are conical compression springs, or springs combining conical and straight sections. Depending on the application area, compression springs can be used to resist pressure and/or store energy. Round wire is the most commonly used for compression springs, but compression springs are also made from square, rectangular, and specially shaped wires.

kraemer spring mechanical principles

A disc 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 outer rings is determined based on the magnitude of the load and deformation requirements. Disc springs are commonly used in applications where space is limited but strong buffering is required. A disc 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 is balanced by surface pressure and friction during loading. Therefore, this effectively reduces the effect of the axial load, i.e., increases 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 disc spring in one loading and unloading cycle is OABO; if there were no friction, it would be OC. During unloading, the characteristic curve switches from point B, rather than from point E, due to elastic hysteresis of the spring, which causes a reduction. Disc spring: a spring composed of alternating stacked washer-like spring steel rings with inner conical and outer cylindrical surfaces, and washer-like spring steel rings with inner cylindrical and outer conical surfaces. The number of pairs of inner and outer rings in a disc spring is determined according to the magnitude of the load it bears and the deformation requirements.

kraemer spring features and functions

1) Wide stiffness range, strong buffering and vibration absorption capacity, and high strain energy per unit volume of material. 2) Has variable stiffness characteristics. Stiffness can be corrected by changing the combination of peak height, width, and thickness. Stiffness can also be adjusted by the number of combined 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 dynamometers 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. Springs can produce large elastic deformations under load, converting mechanical work or kinetic energy into strain energy. After unloading, the spring deformation disappears and returns to its original state, converting strain energy into mechanical work or kinetic energy.

kraemer 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 gas spring international standard and China's national standard; B type 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 J type gas spring, which is one of the product series of gas springs, fully named J type compact structure gas spring. J type 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, and thus 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: It is the model with the shortest base length among gas springs worldwide. At the same time, its outer diameter is one grade smaller than other types of gas springs (except T type extra-slim structure type), but the piston rod diameter is the same, so it is small in size but powerful. C type gas springs perform no worse than ISO standard type gas springs in all aspects when the working stroke requirement is not too long. 4) Extra-slim structure type: It is the most compact type of gas spring in terms of cylinder diameter. It is a piston-sealed type, with an outer diameter even smaller than the ultra-compact type. The working stroke of the H type gas spring series generally does not exceed 50mm, and its performance in all aspects is no worse than that of the C type gas spring.

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