Steel-aluminum composite assembly type transportation semitrailer

Abstract

The invention discloses a steel-aluminum composite assembly type transportation semitrailer which comprises a frame made of a steel material, the frame comprises a plurality of cross beams arranged at intervals in the longitudinal direction of the frame and a pair of girders arranged on the left sides and the right sides of the cross beams, the longitudinal section of each girder is in an I shape, and the longitudinal section of each girder is in an I shape; the frame comprises an upper wing plate, a web plate and a lower wing plate which are fixedly connected in sequence from top to bottom, and the front end of the frame is provided with a containing groove with an open top end; and the carriage is made of an aluminum alloy material, the front end of the bottom of the carriage is contained in the containing grooves, the front end of the bottom of the carriage and the corresponding containing grooves are fixed through bolts, and the left side and the right side of the carriage are fixed to the upper wing plate and the lower wing plate on the corresponding sides through bolts correspondingly. On the basis of ensuring the strength of the frame to meet the loading requirement, the invention has the beneficial effect of avoiding the reduction of the loading weight caused by overweight of the carriage.

Description

technical field [0001] The invention relates to the technical field of semi-trailer equipment. More specifically, the invention relates to a steel-aluminum composite assembled transport semi-trailer. Background technique [0002] A semi-trailer refers to a vehicle that has no power itself and is jointly loaded with the main vehicle and driven by the main vehicle. Semi-trailers include ordinary semi-trailers whose loading parts are railing structures, warehouse rail semi-trailers whose loading parts are detachable guardrails, van semi-trailers whose loading parts are frames, etc. Among them, van semi-trailers are used for household appliances , Textile goods, coal, sand and gravel and other goods transportation. Traditional van-type semi-trailers are made of all steel or all-aluminum alloy. Usually, the all-steel box body uses high-strength corrugated steel plates, which leads to the problem that the weight of the box is too heavy and the cargo weight is reduced, while the ...

AI Technical Summary

Problems solved by technology

Traditional van-type semi-trailers are made of all steel or all-aluminum alloy. Usually, the all-steel box body uses high-strength corrugated steel plates, which leads to the problem that the weight of the box is too heavy and the cargo weight is reduced, while the all-aluminum alloy type The frame is made of aluminum alloy, which leads to the problem that although the weight is reduced, there is a problem of insufficient load caused by insufficient strength of the frame.

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