Connection structure of semitrailer aluminum vehicle frame and steel traction plate

Abstract

The invention belongs to the technical field of semitrailer manufacture and specifically discloses a connection structure of a semitrailer aluminum vehicle frame and a steel traction plate. The connection structure includes a crossbeam, a front beam, a traction plate transverse pressure beam, a traction plate longitudinal pressure beam, a traction pin and a traction plate. The front beam is weldedto the front end of the crossbeam. The crossbeam and the front beam are both made of aluminum profile. The front beam is made of an aluminum profile rectangular tube. The crossbeam is made of an I-shaped aluminum beam. The crossbeam includes a left side beam and a right side beam. The traction plate transverse pressure beam is arranged between the left side beam and the right side beam and is used for connecting the left side beam with the right side beam. The traction plate longitudinal pressure beam is arranged between the front beam and the traction plate transverse pressure beam and is used for connecting the front beam with the traction plate transverse pressure beam. Compared with the prior art, with the vehicle frame of the structure of the invention, the stress at the traction pinis released by the traction plate and the traction plate pressure beams, and the risk of weld failure at the traction pin is reduced, and the traction plate and the vehicle frame are connected by bolts and are easy to assemble and repair.

Description

【Technical field】 [0001] The invention relates to the technical field of semi-trailer manufacture, in particular to a connection structure between an aluminum frame and a steel traction plate of a semi-trailer. 【Background technique】 [0002] In the related technology of semi-trailer manufacturing, the front-end beam of the semi-trailer is made of steel, the traction plate is welded to the front-end beam, and then connected to the main beam with bolts, steel beams and longitudinal beams are welded on the traction plate, and a pressure pin is welded on the traction pin. beam. The disadvantages of the related technology are: the pressure beam is welded on the traction pin, so that the traction pin is completely in a rigid state, which is not conducive to the stress dispersion at the traction pin, and it is easy to cause cracking of the weld seam around the traction pin. At the same time, the structure is complicated and the production efficiency is low; During the assembly pr...

AI Technical Summary

Problems solved by technology

The disadvantages of the related technology are: the pressure beam is welded on the traction pin, so that the traction pin is completely in a rigid state, which is not conducive to the stress dispersion at the traction pin, and it is easy to cause cracking of the weld seam around the traction pin. At the same time, the structure is complicated and the production efficiency is low; During the assembly process of the parts, all are welded on site, and the whole vehicle needs to be treated with antirust after welding

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