Transfer case assembly optimization design method, transfer case assembly and engineering vehicle

Abstract

The invention provides a transfer case assembly optimization design method, a transfer case assembly and an engineering vehicle, the two sides of a transfer case are connected with one end of a transmission shaft through a transmission universal joint, and the other end of the transmission shaft is connected with a gearbox and a driving rear axle through two output universal joints respectively; performing equivalent included angle optimization by taking the minimum equivalent included angle function value of the transmission shaft under the driving working condition and the operation working condition as a target function, and determining an optimized included angle between the central axis of the transfer case and the horizontal line; and establishing an initial finite element analysis model according to the three-dimensional structure of the mounting bracket, taking the minimum weight as an objective function, taking stress, deformation and buckling values as constraint conditions, carrying out topological optimization on the mounting bracket, determining an optimized structure, and obtaining the position distribution, shape and size of the lightening holes. The optimization of the equivalent included angle under the driving working condition and the operation working condition is matched with the topological optimization of the mounting bracket, so that the inter-shaft included angle of the transmission shaft system is reduced, the abnormal sound fault of the transmission shaft system is avoided, and meanwhile, the light weight of the transfer case assembly can be realized.

Description

technical field [0001] The invention belongs to the technical field of vehicle manufacturing, and in particular relates to an optimal design method for a transfer case assembly, a transfer case assembly and an engineering vehicle. Background technique [0002] On the concrete pump truck, the transfer case assembly is one of the most core components in its transmission system. Its main function is to act as a switching device for the driving and working conditions of the vehicle. It is usually installed in the gearbox of the chassis and driving the rear axle. In between, it is fixed on the vehicle chassis through the mounting frame. Because the transfer case itself is heavy and the force is relatively complex, the existing solutions usually tend to be conservative in the structural design of the transfer case mounting frame, which is heavy, expensive and expensive. It is not conducive to the compliance requirements of the weight of the whole machine, and the transfer case of ...

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to propose a transfer case assembly optimization design method, transfer case assembly and engineering vehicle, aiming to solve the technical problems of heavy transfer case assembly and potential safety hazards in the prior art

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