Telescoping semitrailer with independent steering function

Abstract

The invention provides a telescoping semitrailer with an independent steering function. A trailer swab is connected with the tail portion of a head traction device, a connecting pin hole is formed inthe front end of the trailer swab, and the connecting pin hole is matched with a connecting hole in the tail portion of the head traction device. A lifting supporting leg is fixedly installed on the lower end surface at the front end of the trailer swab which is connected with a swab extending section, a trailer front extending section is connected with the front end of the swab extending section,and a trailer rear extending section body is connected with the tail portion of the swab extending section. Wheels are installed on the bottoms of the trailer front extending section, the swab extending section and the trailer rear extending section, two steering oil cylinders are installed at the two ends of a main shaft on the inner sides of the wheels respectively, and the two steering oil cylinders control the steering directions of the two wheels. The telescoping semitrailer has the independent steering function by adding the steering hydraulic oil cylinders and a telescoping hydraulic cylinder, so that convenience is brought to the driving and steering of the semitrailer, and the working efficiency of the semitrailer is improved.

Description

technical field [0001] The invention relates to the field of trailers, in particular to an independent steering telescopic semi-trailer. Background technique [0002] The transport vehicles used in existing projects are mainly divided into agricultural vehicles and dump trucks. Agricultural vehicles are flexible in steering, but limited by insufficient power, the carrying capacity is extremely limited. The power of the dump truck is sufficient, but because the dump truck itself is suitable for short-distance transportation of bulk materials, the loading capacity is average. Usually, when transport vehicles are used in engineering projects, different types of transport vehicles may be used at the same time in consideration of the transportation needs in various situations, which greatly increases the cost of machinery use and increases the labor cost of drivers. Moreover, for a semi-trailer with a large load capacity and transportation capacity, due to the long body, it req...

AI Technical Summary

Problems solved by technology

Usually, when using transport vehicles on engineering projects, considering the transportation needs in various situations, different types of transport vehicles may be used at the same time, which greatly increases the cost of machinery use and increases the labor cost of drivers.

Moreover, for a semi-trailer with a large load capacity and transportation capacity, due to the long body, it requires a large space for steering during transportation. Due to the limited steering space, its steering is extremely inconvenient, and it takes a lot of time during the steering process. Therefore, it is necessary to design a semi-trailer that is convenient to turn

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