German Stoeber springs, Stoeber models, Stoeber prices

Stoeber springs are conical disc-shaped. They 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. Upon compression, they deform until flattened, storing 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 deforming under load, they store potential energy. When bolts loosen, the disc spring releases part of the potential energy to maintain pressure in the flange connection to meet sealing requirements. The stress distribution of disc springs decreases uniformly from the inside to the outside, achieving high compensation force with low travel.

Stoeber spring mechanical principles

Ring springs consist of outer rings with internal conical surfaces mating with inner rings with external conical surfaces. The number of outer ring pairs is determined by the magnitude of the load and deformation requirements. Ring springs are commonly used in applications where space is limited but strong buffering is required. A ring spring comprises many pairs of inner and outer rings. If damaged or worn, individual rings can be replaced rather than the entire assembly, making repair easier and more economical. Due to significant friction on the contact surfaces when the outer and inner rings slide relative to each other along the mating cone, the axial force is balanced by surface pressure and friction during loading. This effectively reduces the effect of the axial load, i.e., increases the spring stiffness. During unloading, friction hinders the recovery of elastic deformation, effectively reducing the spring force. The characteristic curve of a ring spring in one loading and unloading cycle is OABO; without friction, it would be OC. During unloading, the characteristic curve starts from point B rather than point E, due to elastic hysteresis of the spring, resulting in reduction. Ring spring: a spring composed of alternating stacked washer-like spring steel rings with internal conical/external cylindrical surfaces and washer-like spring steel rings with internal cylindrical/external conical surfaces. The number of inner and outer ring pairs in a ring spring is determined by the magnitude of the load it bears and the deformation requirements.

Stoeber spring advantages and classification

The advantages of leaf springs are simple structure, reliable operation, low cost, and easy maintenance. They serve as both the elastic element of the suspension and the guiding device. One end is hinged to the frame, allowing transmission of various forces and moments, and determining the wheel's runout trajectory. At the same time, they provide a certain degree of frictional damping. Achieving three benefits at once, they are widely used in non-independent suspensions. Leaf springs are classified by shape: 1) elliptical leaf spring; 2) semi-elliptical leaf spring; 3) quarter-elliptical leaf spring; 4) single-leaf spring. Elliptical, semi-elliptical, and quarter-elliptical leaf springs are all composite types of leaf springs, relying on friction between the leaves for high cushioning and vibration-damping performance, widely applied in the suspension systems of automobiles, tractors, and railway vehicles; single-leaf springs consist of a single piece of spring steel, mostly used in mechanical equipment and instruments to clamp working components.

Stoeber spring manufacturing process

1) Cold forming process capability for full automation. Cold forming machines have developed to 12 jaws. Wire within the range of (0.3～14) mm can be formed in one pass on a 8-jaw forming machine. Development directions for forming process equipment: (1)) Increase forming speed, with the main trend being to improve equipment forming speed, i.e., production efficiency; (2)) Improve equipment durability by enhancing the precision of equipment parts and strengthening heat treatment effects; (3)) Add length sensors and laser rangefinders to implement automatic closed-loop control of the manufacturing process for CNC forming machines. 2) Cold forming process range capability. Large wire diameter spring coiling machines can handle maximum specifications up to 20mm, =2000MPa, with a winding ratio of 5. Cold forming processes for variable-diameter or constant-diameter Minic-Block springs and eccentric springs still have limitations. 2) Hot forming process speed capability. In China, forming in the (9~25) mm specification range uses only CNC2-axis hot coiling machines, with a maximum speed of 17 pieces per minute. There is a significant gap compared to developed countries. 2) Control capability for large spring hot forming processes. Due to the use of only CNC2-axis hot coiling machines, shape control lacks action in three directions, resulting in poor precision. Furthermore, there are no automatic bar rotation control and adjustment mechanisms, so the level and capability of hot coiled spring forming processes are relatively low. Consequently, the precision level and surface oxidation/decarburization level of the springs are also relatively low.

Weidou Intelligent Technology specializes in selling German Stoeber compression springs, Stoeber extension springs, Stoeber helical springs, Stoeber wave springs, Stoeber constant force springs, Stoeber torsion springs, Stoeber bending springs, Stoeber disc springs, Stoeber ring springs, Stoeber leaf springs, Stoeber torsion bar springs, Stoeber tension springs, Stoeber retaining rings, Stoeber tension springs, Stoeber die springs. Stoeber original imports from Germany. Welcome inquiries and orders from customers.