Special trailer for engineering machinery

Abstract

A trailer head is used for dragging the trailer, the front end of the trailer is connected with the trailer head, the left side and the right side of the rear end of the trailer are each provided with an extending frame outwards, two hydraulic motors are fixedly installed at the upper ends of the front sides of the extending frames on the two sides, and the two extending frames are each internally provided with a planetary gear mechanism; output shafts of the two hydraulic motors are coaxially and fixedly connected with center wheels in the planetary gear mechanisms correspondingly, the two hydraulic cylinders are installed at the lower ends of the front sides of the extension frames on the two sides, and insertion rods are arranged at the top ends of extension rods of the hydraulic cylinders. The left overturning frame and the right overturning frame are installed on the rear sides of the extending frames on the two sides respectively and form a rotating pair, rotating shafts are arranged on the upper sides of the front ends of the two overturning frames, the front ends of the rotating shafts are fixedly connected with the retainers in the corresponding planetary gear mechanisms to form a moving whole, and taper holes are formed in the lower sides of the front ends of the two overturning frames. A left wheel is transversely arranged at the rear end of the left overturning frame, a right wheel is transversely arranged at the rear end of the right overturning frame, and the two wheels can rotate freely.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a special trailer for construction machinery. Background technique [0002] Construction machinery is an important part of China's equipment industry. Generally speaking, construction machinery and equipment required for earthwork construction, road construction and maintenance, mobile lifting and unloading operations and various construction projects are called construction machinery. Construction machinery is mainly used in national defense construction projects, transportation construction, energy industry construction and production, mining and other raw material industrial construction and production, agriculture, forestry and water conservancy construction, industrial and civil construction, urban construction, environmental protection and other fields, that is, all construction and construction. Engineering is almost inseparable from all kinds of construction machiner...

AI Technical Summary

Problems solved by technology

[0004] Most of the existing carriers used for hauling construction machinery are flatbed trailers with ladders. This kind of flatbed trailer is evolved from the chassis of conventional container vehicles. Its high chassis leads to a high overall center of gravity when hauling construction machinery. The risk of overturning is relatively high, and it can only be loaded and unloaded by its own ladder, and the load capacity of the ladder is limited, so that the flatbed trailer can only haul small and medium-sized construction machinery, which also leads to medium and heavy engineering machinery often used in large-scale engineering projects. The machinery has the problems of difficult transfer and high risk of hauling; therefore, there is an urgent need for a trailer with a low center of gravity of the chassis and easy loading and unloading to realize the hauling of medium and heavy construction machinery

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