Support structure of vehicle frame and engineering facility

Abstract

The invention provides a support structure of a vehicle frame and an engineering facility. The support structure comprises a support leg, a vertical oil cylinder and an auxiliary support oil cylinder; the support leg comprises a support end and a vehicle frame connecting end; the vehicle frame connecting end is connected with a vehicle frame; the vertical oil cylinder is connected with a support end of the support leg; the auxiliary support oil cylinder is connected with the vehicle frame and the vehicle frame connecting end of the vehicle frame; the auxiliary support oil cylinder comprises a cylinder body and a piston part; one end of the piston part is movably installed in the piston cavity of the cylinder body; and the cylinder body acts as the vehicle frame connecting end of the support leg, and is connected with the vehicle frame in a pivoted mode. When a finished vehicle achieves the operation target place, the support leg is unfolded, and the vertical oil cylinder extends and bears certain operation load, so the leg cross section size and plate material thickness size are not required to be increased, and the support structure of the vehicle frame has the characteristic of light weight. In addition, the integral stress and flexibility of the support leg are also reduced, and the extrusion and shearing stress at the connection part of the support leg and the vehicle frame is also reduced.

Description

technical field [0001] The invention relates to the field of outriggers, and more specifically, to a support structure and engineering equipment for a vehicle frame. Background technique [0002] The large-tonnage and super-large-tonnage engineering equipment in the prior art will need to use the supporting structure of the vehicle frame during operation. [0003] Taking wheeled cranes as an example, usually only a single outrigger is used to support the frame. Due to the heavy load of the wheeled crane, the reaction force of the outrigger is large, so the stress and deflection of the outrigger are relatively large, so it is necessary to design the cross-section of the outrigger to be larger and the plate thickness to be thicker. However, under the premise that the structural parts of the whole vehicle are enlarged, the national standards must also be met. Therefore, how to design the support structure of the vehicle frame that meets the lifting capacity requirements withi...

AI Technical Summary

Problems solved by technology

However, this method has the following disadvantages: (1) The cross-sectional size of the outrigger and the thickness of the plate are large, and the weight is heavy; (2) The deflection of the outrigger is large and the stress is large

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