Shaft lifting device for leaf springs suspension

Abstract

The invention relates to the technical field of the shaft lifting mechanism of automobiles, in particular to a shaft lifting device for leaf springs suspension. The shaft lifting mechanism comprises a frame, a shaft and leaf suspension mechanisms fixedly connected with two ends of the shaft, respectively. The shaft lifting mechanisms are fixedly connected with the upper part of the shaft and the middle of the frame. The shaft lifting mechanism includes a fixed beam, the two ends of which are fixedly connected with the frame, respectively; an airbag which is arranged on the fixed beam and which is chargeable and dischargeable; and a movable beam. The airbag is arranged between the fixed beam and the movable beam, the two ends of the movable beam are connected with lifting components, respectively, and the shaft is arranged on the lifting components. The shaft is lifted up and down by the charge and discharge of the airbag of the shaft lifting mechanism, and the lift-up and lift-down of the shaft is achieved by the device. The loads are distributed rationally, the oil consumption is reduced, and the wear of tires is reduced. Furthermore, the device has the advantages of simple structure, firmness, high strength, long service life, and low manufacture cost.

Description

technical field [0001] The invention relates to the technical field of axle lifting mechanisms of automobiles, in particular to an axle lifting device suspended by leaf springs. Background technique [0002] Most of the axle lifting mechanisms of automobiles in the prior art adopt liftable air suspension. When the vehicle is heavily loaded, the liftable axle is put down. When the vehicle is lightly loaded, the liftable axle is lifted to distribute the axle load reasonably. Reduce fuel consumption and reduce tire wear, but the liftable air suspension is not only expensive, but also easy to damage, and the repair and maintenance costs are relatively high, which greatly increases the manufacturing and use costs of the vehicle. Although the vehicle with leaf spring suspension is relatively low in cost, it cannot achieve the lifting of the axle, and cannot achieve the requirements of rationally distributing the axle load, reducing fuel consumption, and reducing tire wear. Conte...

AI Technical Summary

Problems solved by technology

[0002] Most of the axle lifting mechanisms of automobiles in the prior art adopt liftable air suspension. When the vehicle is heavily loaded, the liftable axle is put down. When the vehicle is lightly loaded, the liftable axle is lifted to distribute the axle load reasonably. Reduce fuel consumption and reduce tire wear, but the liftable air suspension is not only expensive, but also easy to damage, and the maintenance cost is high, which greatly increases the manufacturing and use costs of the vehicle

Although the cost of the vehicle with leaf spring suspension is low, it cannot realize the lifting of the axle, the reasonable distribution of axle load, the reduction of fuel consumption, and the requirements of reducing tire wear.

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