German ibs springs ibs models ibs prices

ibs springs are energy accumulators; they have the function of storing energy but cannot release it slowly. To achieve slow release, this function should be realized by a "spring + high transmission ratio mechanism," commonly seen in mechanical watches. Helical springs have been applied for a very long time; ancient bows and crossbows are two types of helical springs in a broad sense. According to appearance, they can be divided into ordinary cylindrical helical springs and variable-diameter helical springs (see figure); according to the direction of the helix, they can be divided into left-hand springs and right-hand springs. Cylindrical helical springs have a simple structure, are easy to manufacture, and are the most widely used. Their characteristic line is linear, and they can serve as compression springs, extension springs, and torsion springs. When the load is large and the radial dimensions are limited, two compression springs with different diameters can be nested together to form a combination spring. Variable-diameter helical springs include conical helical springs, volute helical springs, and concave helical springs. Conical helical springs have good buffering performance and can withstand large loads. Volute helical springs can store more energy and withstand larger loads, but the manufacturing process is relatively complex. The performance of concave helical springs is similar to that of conical helical springs, and they are mostly used in seat cushions and mattresses. The cross-sections of spring wire include circular and rectangular shapes, with circular cross-sections being the most commonly used.

ibs spring principle

When leaf springs are installed in an automobile suspension and the vertical load borne is positive, all spring leaves undergo stress deformation and tend to arch upward. At this time, the axle and the frame move closer to each other. When the axle and the frame move apart, the positive vertical load and deformation on the leaf spring gradually decrease, and may even reverse. The eye of the main leaf is severely stressed and is a weak point. To improve the stress condition of the main leaf eye, the end of the second leaf is often bent into an eye that wraps around the outside of the main leaf eye, known as a wrap eye. To allow relative sliding between the leaves during elastic deformation, a large gap is left between the main leaf eye and the second leaf wrap eye. In some suspensions, the ends of the leaf springs are not made into eyes but use other support connection methods, such as rubber support pads. Flat rectangular steel plates are curved, forming chassis springs stacked from several pieces. One end is installed on the hanger with a pin, and the other end is connected to the main beam using a shackle, allowing the spring to expand and contract. This is suitable for medium and large trucks. Automobile leaf springs are very important. As everyone knows, leaf springs are composed of many steel leaves that are elastic, have consistent width and thickness, but vary in length. Their function is to connect the frame and the axle in a suspended form, exposed between the frame and the axle, bearing the load impact of the wheels on the frame, reducing severe vibration of the vehicle body, and maintaining the stability of vehicle driving and adaptability to different road conditions. When leaf springs bear load impacts, they undergo extension motion, causing strong friction between the steel leaves, which is an extrusion and stretching phenomenon. The two friction surfaces generate motion friction forces in two different directions, causing the temperature of the leaf spring to rise, resulting in surface scratches and presenting fine cracks. As the frequency of load impact increases, the friction motion force generated by the extension motion also increases. When the stress concentration point reaches the fatigue limit, it will cause single-leaf or entire-stack fracture. Tests based on the principles of kinematics have proved that when a steel component undergoing compression-extension motion increases in motion frequency, its temperature rises and strength decreases. Cracks appear at stress concentration points and gradually expand and deepen, leading to damage when the fatigue limit is reached. Leaf springs are similar, except that they have higher elasticity and are more durable than general steel components. Apart from other reasons, the main cause of leaf spring fracture is poor lubrication, which should attract the attention of drivers and technical management personnel. Timely lubrication of leaf springs should be performed to reduce friction and disperse stress, preventing surface scratches on the steel leaves; reduce the intrusion of dust, dirt, and water to prevent rust; and dissipate heat to prevent a decline in elastic strength. The general lubrication method is: it should be carried out after the new vehicle break-in period ends, and during use in summer and winter. During lubrication, first remove the leaf spring, open the center bolt to scatter the steel leaves, then evenly apply lithium-based grease or graphite grease to both sides of the steel leaves. After reassembly, an oil film is formed between the two friction surfaces (completing a set of leaf spring lubrication takes only the time required to replace one broken leaf).

ibs spring features and functions

1) Large 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 combining different numbers of leaves. 3) Compared with disc springs, it has advantages such as high strength, good flexibility, and strong impact resistance. 4) Compact structural dimensions; under the same theoretical parameter conditions, less installation space is required. 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 automobile 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 a type of elastic element widely used in the mechanical and electronic industries. When loaded, springs can produce large elastic deformations, converting mechanical work or kinetic energy into deformation energy. After unloading, the spring's deformation disappears and it returns to its original state, converting deformation energy back into mechanical work or kinetic energy.

ibs spring features

Suspensions using torsion bar springs have lighter mass, simpler structures, and do not require lubrication. By adjusting the installation angle of the fixed end of the torsion bar spring, automatic adjustment of vehicle body height is easily achieved. Torsion bar springs store large amounts of elastic energy per unit volume and have low mass. Compared with helical springs, torsion bar springs have a compact structure and are easy to arrange. Torsion bar springs are widely used in off-road vehicles, light passenger cars, and trucks. According to their cross-sectional shape, torsion bar springs can be divided into circular, tubular, and strip types. Solid circular torsion bars have a simple structure and are the most commonly used. To assemble the torsion bar, its two ends are machined into splines, hexagonal shapes, square shapes, etc. Since the spline head dimensions are relatively small, spline connections are mostly used. Generally, the major diameter of the spline is 1.2~1.3 times the working diameter of the torsion bar, and the spline length is approximately 1.4 times the major diameter of the spline. As long as the compressive stress of the spline teeth is within permissible limits, the spline teeth should not be selected to be excessively long. Torsion bar springs generally use involute splines GB3478. In the JSB2705 standard, the recommended standard pressure angle for splines is 45°; the modules are 1mm and 0.75mm. To facilitate the assembly of torsion bar springs, some torsion bar springs have unequal diameters for the splines at both ends, or a blind tooth is machined on the spline teeth at both ends.

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