Multistage damping steel plate spring

Abstract

The invention belongs to the technical field of automobile accessories, and particularly relates to a multistage damping steel plate spring. The multistage damping steel plate spring comprises a plurality of plate springs, the lengths of the plate springs are unequal, the thickness and the material of the plate springs are the same, a fixing pin penetrates through the middle points of the plate springs, the bottom end surface of each plate spring is provided with a containing groove, the inner wall of each containing groove is symmetrically provided with fixing blocks, a connecting bolt is arranged in each fixing block in a penetrating mode, and the bottom end of each connecting bolt penetrates through the corresponding containing groove to the interior of the corresponding plate spring. According to the multistage damping steel plate spring, through a designed sponge module, when the plate springs are installed on an automobile, the plate springs can be directly lubricated once the plate springs meet the load impact, so that the later-stage dismounting and lubricating efficiency is improved, the loss between every two adjacent plate springs is reduced, meanwhile, in combination with designed clamping pins, the stability of connection can be improved, the use is very stable and convenient, the lubricating efficiency can be improved, the service life of the plate springs is prolonged, and the safety coefficient is improved.

Description

technical field [0001] The invention belongs to the technical field of auto parts, in particular to a multi-stage damping leaf spring. Background technique [0002] Leaf spring is the most widely used elastic element in automobile suspension. It is an elastic beam of approximately equal strength composed of several alloy spring sheets of equal width but unequal length. [0003] There are still some deficiencies in the existing multi-stage damping leaf springs: when the existing leaf springs are in use, due to the need to withstand load impacts, strong friction occurs between the leaf springs, which will cause the leaf springs to The temperature rise will easily cause the wear of the leaf spring and lead to safety accidents. Therefore, it is necessary to regularly apply lithium-based grease or graphite grease on both sides of the leaf spring for lubrication. However, in the later use, due to frequent friction, it will increase In addition to the consumption of grease, the co...

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Problems solved by technology

[0003] There are still some deficiencies in the existing multi-stage damping leaf springs: when the existing leaf springs are in use, due to the need to withstand load impacts, strong friction occurs between the leaf springs, which will cause the leaf springs to The temperature rise will easily cause the wear of the leaf spring and lead to safety accidents. Therefore, it is necessary to regularly apply lithium-based grease or graphite grease on both sides of the leaf spring for lubrication. However, in the later use, due to frequent friction, it will increase Reduce the consumption of grease, the cost of maintenance is relatively large, and more frequent

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