Steel welding van semi-trailer in North America

Abstract

The invention discloses a steel welding van semi-trailer in North America, which comprises a tank body with a girder-free full steel welding structure, a traction pin positioned on the lower front part of the tank body, a leg device positioned on the lower front part of the tank body and on the rear of the traction pin, and a travelling mechanism positioned on the lower rear part of the tank body,wherein the tank body comprises an underframe, a steel front wall, a steel top plate, two steel side plates, steel rear end and bottom plates laid on the underframe; the underframe comprises two bottom curb girders and a plurality of bottom cross girders parallelly and vertically arranged between the bottom curb girders at intervals; the steel side plates are formed by welding a plurality of corrugated plates; the corrugated plates form wave crests and wave troughs extending along the up and down direction of the tank body; and the wave troughs of the corrugated plates are fixed with a plurality of reinforcing ribs extending from the steel top plate to the bottom curb girders. The side plates of which the strength meets the requirements can be made of thin-wall steel plates, so the side plates of the steel welding van semi-trailer in North America can meet the requirements on strength, rigidity and stability.

Description

technical field [0001] The present invention relates to a North American steel welded box-type semi-trailer, in particular to a side plate structure of a North American steel welded box-type semi-trailer. The structural problem of the side panel of the quality box. Background technique [0002] At present, the main structural form of the van semi-trailer in North America is the riveting form without the beam. [0003] figure 1 It is a side view of a traditional van semi-trailer with a girder 16' in the prior art. North American van semi-trailer no figure 1 Such girders are shown in . [0004] Due to the development history of product manufacturing resources and technology, the pursuit of lightweight boxes to reduce operating costs has become the main theme of the North American van semi-trailer market. Against such a background, lightweight riveted aluminum side panels without girders and riveted thin-walled steel-plastic composite side panels without girders have becom...

AI Technical Summary

Problems solved by technology

[0007] However, since steel is heavier than aluminum, in order not to increase the total weight of the North American van semi-trailer, the thickness of the steel will inevitably be reduced, which in turn will cause problems with the load-bearing of the box side panels

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