Self-discharging semitrailer vehicle frame

Abstract

A frame for a dump semi-trailer comprises an upper frame and a lower frame, and the compound mode of the upper frame and the lower frame is that two longitudinal beams of the gooseneck part of the upper frame are corresponding to and are arranged beyond two longitudinal beams of the gooseneck of the lower frame; the gooseneck part of the upper frame is arranged above a bearing pull blade of the lower frame and the gooseneck support of the lower frame; the upper plane of the upper frame is higher than the upper plane of the upper wing plate of the gooseneck longitudinal beam of the lower frame. The frame for the dump semi-trailer with the structure of the invention can reduce the height of the bearing plane of the trailer, thereby reducing the height of gravity center of the whole vehicle after being loaded, avoiding turn-over when unloading, increasing the volume of the trailer without changing the total length and width of the trailer, loading more goods and increasing conveying efficiency.

Description

technical field [0001] The invention relates to a large transport vehicle, in particular to a self-unloading semi-trailer, and more particularly to a frame structure of a low-load type self-unloading semi-trailer. Background technique [0002] From Figure 1A , 1B As shown, the combination of the upper frame and the lower frame of the traditional gooseneck dump semi-trailer 1' is as follows: the upper frame 2' is assembled and welded according to the gooseneck form of the lower frame 3', and the upper frame is always installed on the lower frame within the entire length of the frame. In this way, it is inevitable that the upper shelf 2' must rise with the lower shelf at the gooseneck of the lower shelf 3', so that the load-bearing surface of the goods is raised, the center of gravity of the entire cargo is increased, and the vehicle's discomfort is increased. Stability; and after the gooseneck is raised, since the total height of the carriage remains unchanged, the internal...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects existing in the prior art, and propose a low load-bearing self-unloading semi-trailer frame structure. The height of the load-bearing surface of the trailer effectively solves the problem that the existing trailer has a relatively high load-bearing surface and a high center of gravity of the cargo. When dumping the cargo, the trailer is easy to overturn and cause major safety accidents.

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