Wheel storing device of amphibious vehicles

Abstract

The invention discloses a wheel storing device of amphibious vehicles. A rocker arm support and a speed reducer are fixedly installed on the top of a frame assembly. The input end of the speed reducer is connected with an output shaft of a motor, the output end of the speed reducer is coaxially connected with the upper end of a rocker arm, the lower end of the rocker arm is hinged to the upper end of a shock absorber, the lower end of the shock absorber is hinged to a first supporting lug in the middle of a lower cross arm, the inner end of the lower cross arm is hinged to the frame assembly, and the outer end of the lower cross arm is hinged to the middle of a steering arm. A wheel assembly is installed on the bottom of the steering arm. The rotating shaft end of an upper ball joint bearing is fixed to the top of the steering arm, and half shafts are coaxially arranged on the front side and the rear side of a case of the upper ball joint bearing respectively and are installed in sleeve structures at the outer end of an upper cross arm through bushes. The inner end of the upper cross arm is hinged to the upper part of the frame assembly. The frame assembly, the lower cross arm, the steering arm and the upper cross arm form a four-connecting-rod mechanism. According to the invention, on the premise of guaranteeing that wheels are normally stored, the storage angle is large, the gravity center of the whole vehicles is effectively lowered, the overall vehicle arrangement is convenient, and the stressing environment of the shock absorber is improved.

Description

technical field [0001] The invention belongs to the field of amphibious vehicles, in particular to an amphibious vehicle wheel retractable device. Background technique [0002] Amphibious vehicles are widely used because they can travel on land and advance in water, and are currently mainly used in the military field. The wheels of the amphibious vehicle need to be supported on the ground when driving on land, and rely on the friction force with the ground to move forward, and they need to be retracted in order to reduce the resistance when advancing in the water, so it is necessary to design a wheel retraction on the amphibious vehicle. put the device. [0003] At present, some patent documents disclose amphibious vehicle wheel retractable devices in various structural forms, such as US5590617, US4958584 and ZL200810018848.1. Among them, US5590617 and US4958584 set the shock absorber above the upper cross arm, which will occupy a large vehicle space, thereby causing the c...

AI Technical Summary

Problems solved by technology

In order to ensure that the wheels have sufficient retractable angles, this retractable device has the following disadvantages: 1. The guide rail needs sufficient height to be arranged, which takes up a lot of space and causes inconvenience to the shape design of the vehicle; 2. Since the upper end of the shock absorber is inclined outward, the stress environment of the shock absorber is relatively harsh, and the quality requirements of the shock absorber are very high.

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