Automobile crane and driving system thereof

Abstract

The invention discloses an automobile crane driving system which comprises a mechanical drive module, a hydraulic drive module and a controller which is used for connecting the mechanical drive module and the hydraulic drive module; one part of the signal output end of the controller is connected with the mechanical drive module; the other part of the signal output end of the controller is connected with the hydraulic drive module; the signal receiving end of the hydraulic driving module is used for selectively communicating the signal output end of the controller according to the working condition; the mechanical drive module and the hydraulic drive module are respectively provided with an independent power unit and can mutually drive the automobile crane; the problem of insufficient large automobile crane driving force is solved; and the automobile crane applicability is improved. The invention also provides an automobile crane comprising the driving system.

Description

technical field [0001] The invention relates to the technical field of truck cranes, in particular to a drive system for truck cranes. In addition, the present invention also relates to a truck crane comprising the above drive system. Background technique [0002] The truck crane has the dual characteristics of a car and a crane. It must meet the legal requirements of road vehicles when driving on the road, and it must also have the operating characteristics of an engineering vehicle on a construction site. Existing truck cranes are all driven by a single power system. With the development of large-scale cranes, the mass of the whole machine must reach more than 100 tons, and the mass of the full-load transfer must be more than 200 tons, which puts forward higher requirements for vehicle power performance. The maximum power of the engine for domestic road vehicles is also below 500KW, which can only meet the dynamic performance requirements of vehicles with a total mass of ...

AI Technical Summary

Problems solved by technology

[0008] The two vehicle drive methods have their own applicability and limitations. For example, the mechanical drive method requires coherent spatial layout due to mechanical transmission, and has high requirements for layout space. It is not easy to realize the drive of more than five axes, and it is impossible to realize In the case of dual power drive, two or more mechanical transmission systems run in parallel, and the driving capacity is limited, which cannot meet the needs of super-large-tonnage vehicles moving on the construction site; while the hydraulic drive method requires multiple conversions of energy forms during the power transmission process, so it consumes a lot of energy. Low efficiency, generally only used in low-speed, high-torque transmission, it is difficult to meet the needs of large-scale truck cranes and high-speed movement

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