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Crane

A technology for cranes and working vehicles, used in cranes, motor vehicles, vehicle maintenance, etc., can solve the problems of poor reliability mechanical steering, complex electro-hydraulic proportional servo systems, and high costs, and achieve a small turning diameter and a simple and stable steering system. Effect

Active Publication Date: 2020-02-07
SANY AUTOMOBILE HOISTING MACHINERY
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  • Abstract
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AI Technical Summary

Problems solved by technology

Due to the complexity and precision of the electro-hydraulic proportional servo system, its cost is high, and its reliability is relatively poor compared to mechanical steering

Method used

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Embodiment Construction

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0027] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art wi...

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Abstract

The embodiment of the invention provides a crane and relates to the technical field of engineering equipment. The crane provided by the embodiment of the invention comprises a towing tractor and an operation vehicle. The towing tractor comprises a first driving part for providing a traveling driving force, a suspended loading mechanism is arranged on the operation vehicle, and the back end of thetowing tractor is hinged to the front end of the operation vehicle, so that when the crane steers in the travelling process, the towing tractor can rotate relative to the operation vehicle. The steering system of the crane provided by the embodiment of the invention is simple and stable and can achieve a relatively small turning diameter.

Description

technical field [0001] The invention relates to the technical field of engineering equipment, in particular to a crane. Background technique [0002] Due to the long overall length of the super-large tonnage crane, in order to obtain better passability, the steering system must be optimized, such as all-wheel steering, multiple steering modes, etc., but the steering angle of each bridge is often limited by the structure. 42°, so even if the all-wheel steering mode is adopted, the turning diameter of super-large tonnage cranes often cannot meet some regulations, such as the 24 meters stipulated in GB1589. [0003] Although all axles of super-large tonnage can steer, due to the existence of multiple steering modes, the steering axle is also divided into main steering axle (mechanical linkage) and auxiliary steering axle (electro-hydraulic ratio). The electro-hydraulic auxiliary steering needs to monitor the rotation angle of the main steering axle in real time, and drive the ...

Claims

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Application Information

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IPC IPC(8): B62D49/02B60S9/10B66C23/38B66C23/62B66C23/80
CPCB60S9/10B62D49/02B66C23/38B66C23/62B66C23/80
Inventor 沈川郭新强李光荣
Owner SANY AUTOMOBILE HOISTING MACHINERY
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