Synchronous wheel retracting and releasing device of amphibious vehicle

Abstract

The invention discloses a synchronous wheel retracting and releasing device for an amphibious vehicle, and relates to the amphibious vehicle. The wheel retracting and releasing device comprises a synchronous rotating shaft, a rocker arm, a lock pin, two synchronous connecting rods, two four-connecting-rod mechanisms and an oil cylinder. The center of the rocker arm is connected with the synchronous rotating shaft. And the lock pin can lock the rocker arm at a specified position. The two synchronous connecting rods are symmetrically arranged and one ends of the two synchronous connecting rods are hinged with the corresponding ends of the rocker arms. The two four-connecting-rod mechanisms are symmetrically arranged, the upper end of the inner side of each four-connecting-rod mechanism is hinged to the other end of the corresponding synchronous connecting rod, and each four-connecting-rod mechanism is further fixedly connected with the corresponding chain transmission box. And the oil cylinder is connected to the inner sides of the two four-connecting-rod mechanisms. The oil cylinder drives one four-connecting-rod mechanism to fold and unfold one wheel, the four-connecting-rod mechanism drives the transmission structure composed of the synchronous connecting rod, the rocker arm and the synchronous rotating shaft, and the other four-connecting-rod mechanism is driven to fold and unfold the other wheel at the same time. The device has the advantages of being compact in structure, large in wheel folding amplitude, stable in land operation and long in service life.

Description

technical field [0001] The present application relates to an amphibious vehicle, in particular to a synchronous retractable wheel device for an amphibious vehicle. Background technique [0002] Water navigation speed is an important indicator of amphibious vehicles. Compared with boats, amphibious vehicles have a complex structure, heavy weight and deep water draft; the streamlined body is damaged by wheels and wheel suspensions; resulting in high navigation resistance. Therefore, most amphibious vehicles adopt a retractable wheel structure, and when driving in water, the wheels are retracted above the water surface to reduce resistance. To achieve the purpose of increasing the speed of the vehicle. And the quality of retractable wheel device design directly affects the size of land driving performance and water navigation resistance. [0003] At present, relatively mature amphibious vehicle products include Humingda, Gibbs Humdinga and Gibbs Quadski of the British Gibbs ...

AI Technical Summary

Problems solved by technology

The development of domestic amphibious vehicles started relatively late, and there is a big gap compared with foreign countries. The wheel receiving mechanism is immature, and the speed of water navigation generally does not exceed 20km / h.

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