How does a special flatbed truck for transporting large items turn with dozens of axles and hundreds of wheels?

Author: Dingxiang Hutong

Link: https://www.zhihu.com/question/35482198/answer/3127793399

Source: Zhihu

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The "Special Flat Truck for Large Item Transportation" mentioned by the questioner, also known as the Large Item Transportation Trailer, is mainly composed of a type of vehicle with hydraulic suspension, and its core unit is the axis module. The axis module is mainly used for road transportation, short distance transportation (such as docks, shipyards, industrial projects or infrastructure construction sites, etc.). It has the advantages of hydraulic independent suspension, adjustable cargo platform, mechanical hydraulic wheel axle steering, modular expandability, etc., and has rapidly developed into an important type of specialized transportation vehicle, which can be said to constitute the cornerstone of large-scale transportation. In terms of steering, the axis module fully considers the corresponding requirements under various working conditions, and its product design has undergone multiple generations of evolution. It is precisely this cleverly designed linkage structure that ensures that any length of train can freely turn and turn. The modules can be connected and converted in advance according to the transportation needs under different usage conditions. In terms of the steering form of the axis module, the corresponding categories and differences can be clearly seen through the following figures: the longitudinal to transverse connecting rod independent steering type. Taking the common 2990 plate type as an example, its maximum steering angle of the wheel axle can reach 50 ° to 55 °. The specific parameters are as follows: specification parameter notes: length 1550mm x XX=2, 3, 4, 5, 6, 7 width 2990mm wheelbase 1500mm wheelbase 735/1820mm tire 7.5R15&215/75R17.5 axle load (two columns) 36Ton cargo platform height 1080 ± 325mm maximum turning angle 50 °~55 °. Of course, for extreme dimensions, turning and turning operations cannot simply rely on transportation equipment to be in place in one step. Special road sections must be repeatedly adjusted to pass smoothly.