Vehicle body framework structure of van-type amphibious vehicle

Abstract

The invention discloses a vehicle body framework structure of a van-type amphibious vehicle. The structure comprises a vehicle body framework assembly which is located between an upper vehicle body assembly and a lower ship body assembly. The vehicle body framework assembly comprises a left upper longitudinal beam, a left lower longitudinal beam, a right upper longitudinal beam and a right lower longitudinal beam, and the left lower longitudinal beam and the right lower longitudinal beam are connected into a plane to be connected with the lower ship body assembly; the left upper longitudinal beam and the right upper longitudinal beam are connected into a plane to form an in-vehicle floor surface; the rear ends of the left upper longitudinal beam, the left lower longitudinal beam, the right upper longitudinal beam and the right lower longitudinal beam are connected with the rear wall assembly; suspension triangular arm installation supports are arranged on the two sides of the front end of the vehicle body framework assembly respectively, extend to the air window upper cross beam and are fixedly connected with the air window upper cross beam. And the air window upper cross beam is forwards connected with the upper ends of the two connecting beams respectively. The structure is convenient to disassemble and meets the front collision performance.

Description

technical field [0001] The invention belongs to the technical field of amphibious vehicles, and in particular relates to a body frame structure of a van-type amphibious vehicle. Background technique [0002] Amphibious vehicles are used in both water and land working conditions. Due to the constraints of the lower hull structure, the intermediate frame assembly needs to meet the installation of a large number of assembly parts and at the same time transmit the force of the water and land working conditions. Very demanding. [0003] Most of the existing amphibious vehicle skeletons are integral skeletons integrated with the lower hull. The matching surfaces between the skeleton and the hull surface are complex, large in number, fixed, and complicated in positioning. The precision requirements for the hull and the skeleton itself are extremely high, and the skeleton assembly itself Most of them are one-piece welded assemblies, and the middle frame assembly is not independent,...

AI Technical Summary

Problems solved by technology

The hull and steel frame assembly form the entire lower hull, which has a certain degree of integration with the vehicle and ship structure. However, the steel frame and the hull have many and complicated installation surfaces, and the precision requirements for the steel frame and the hull itself are extremely high. In addition, the frame assembly The structure does not have independence, the installation of large assemblies such as the chassis cannot be assembled offline with the skeleton assembly and then assembled to the hull, there is no upper body and side wall related structures, and it cannot meet the relevant requirements for anti-rollover in land working conditions

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