Bearing surface-based semi-trailer device capable of being widened and application thereof

Abstract

The invention discloses a bearing surface-based semi-trailer device capable of being widened. The semi-trailer device comprises a semi-trailer device body with a main frame (1), a side frame (2) arranged on the side surface of the main frame (1) and connected with the main frame (1) in a pulling manner and a telescopic cylinder (3) which is arranged between the side frame (2) and the main frame (1), wherein the positions of the side frame (2) and the main frame (1) of the semi-trailer device body are converted by the telescopic cylinder (3) to adjust the width of the semi-trailer device body without only using the main frame (1) of the semi-trailer device body, so that the requirement for the transportation of extra-wide cargoes is met.

Description

1. Technical field [0001] The invention relates to a semi-trailer device and its application, in particular to a semi-trailer device and its application which can be widened based on the bearing surface. 2. Background technology [0002] A semi-trailer is a trailer whose axle is placed behind the vehicle's center of gravity and is equipped with hitches that transmit horizontal and vertical forces to the tractor. Semi-trailers are generally three-axle semi-trailers, and their types are divided into 11-meter warehouse semi-trailers, 13-meter warehouse semi-trailers, and low-bed semi-trailers. It is a heavy-duty transport vehicle connected to the head of the semi-trailer through the traction pin, so the semi-trailer device is an important transportation equipment. In the existing semi-trailer device, such as generator sets, construction machinery, military equipment, etc. The transportation of various large, ultra-wide, and non-detachable goods is becoming more and more widesp...

AI Technical Summary

Problems solved by technology

It is a heavy-duty transport vehicle connected to the head of the semi-trailer through the traction pin, so the semi-trailer device is an important transportation equipment. In the existing semi-trailer device, such as generator sets, construction machinery, military equipment, etc. The transportation of various large, ultra-wide, and non-detachable goods is becoming more and more widespread. Such ultra-wide goods are generally transported by low-bed semi-trailers, while the width of standard low-bed semi-trailers is 3 meters, which is difficult to meet the transportation requirements. On the other hand, if the ultra-wide low-bed semi-trailer cannot return to the standard width when it is empty or transporting goods that are not ultra-wide, it will be subject to many restrictions during road operation, which will greatly affect the transport efficiency of the semi-trailer. At present, there is no semi-trailer device and its application based on the widening of the bearing surface to meet the transportation needs of ultra-wide cargo

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