Transversal leaf spring type front independent suspension mechanism with sliding blocks at two ends

Abstract

The invention relates to a front independent suspension mechanism of a vehicle, in particular to a front axle independent suspension mechanism mainly used on a commercial vehicle such as lorry and passenger car. In the mechanism, one, two or mainly leaf springs are used in place of an elastic element of the conventional independent suspension such as spiral spring independent suspension or torsion bar independent suspension, plate-end sliding blocks are used to connect a common independent suspension and leaf springs together perfectly, structures such as I-beam are not used, parts such as leaf springs are hidden in a cross beam of a secondary vehicle frame, and the advantages of the common independent suspension and the advantages of the leaf spring suspension are fully combined. In the mechanism, the loading capacity is high with many elastic elements are used, and the difference between equivalent averages of idle-load comfort and load comfort is small; and compared with the conventional axle load commercial vehicle, the commercial vehicle using the mechanism is more comfortable, takes up a smaller space and is lower in cost.

Description

technical field [0001] The invention belongs to the vehicle front suspension structure. Background technique [0002] With the improvement of roads and customers' requirements for ride comfort and comfort, the front independent suspension, which was mostly used in passenger cars before, is gradually used in commercial vehicles with lighter axle loads; [0003] However, because the existing independent suspension mechanism has only one elastic element on one side, and the elastic elements all use coil springs or torsion bar springs, these mechanisms are complex in structure, heavy in weight, large in space, high in processing costs, and difficult to maintain. There is a big difference between the empty and full axle loads of commercial vehicles, so the carrying capacity and cost of the existing independent suspension mechanism have always prevented it from being used on commercial vehicles with a large front axle load; [0004] The leaf spring suspension is easy to manufactu...

AI Technical Summary

Problems solved by technology

But its smoothness is very poor. At the same time, when the leaf spring suspension is used, the front axle needs to use heavy components such as I-beams;

[0005] For a commercial vehicle with a large front axle load, the force applied to the elastic element is also large, and the axle load varies greatly between empty and full loads. If a single elastic element is used on one side of the suspension, it must satisfy the ride comfort when it is unloaded, and the load when it is fully loaded. The capacity will be weakened; when the load capacity is also guaranteed at full load, the smoothness of no load will be poor

Therefore, neither the existing independent suspension nor the leaf spring suspension can meet the load-bearing capacity and smoothness requirements of commercial vehicles at the same time.

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