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Definition and Structure of Leaf Springs
2024-10-16
A leaf spring consists of several alloy spring leaves of equal width but varying lengths (their thicknesses may be the same or different), forming an elastic beam with roughly uniform strength. It serves both as the suspension's elastic element and as its guiding mechanism. There are two main types of leaf springs:
Multi-leaf steel spring: It consists of multiple steel leaves of varying lengths but identical widths. Each leaf is stacked in an inverted triangular arrangement, with the upper leaves longer and the lower leaves shorter. The number of leaves is related to the weight supported by the spring; the thicker and shorter the leaves, the greater the spring’s stiffness.
Single-leaf spring: Composed of steel plates that are thin at both ends and thick in the middle, with uniform width and length. The cross-section of the single-leaf spring’s steel plates varies significantly—from the middle to the ends, the cross-section gradually changes. As a result, the rolling process is more complex than that for multi-leaf springs, and the price is also higher.
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