Distributedcontrol system and crane comprising distributed control system

Abstract

The invention discloses a distributed control system and a crane comprising the distributed control system. The distributed control system comprises a monitoring and operating control unit, a loading control unit, an unloading control unit, a movable counter weight control unit, a super-lift device control unit, a jib frame control unit and a special control unit, all of which are mutually connected through a bus network and select a data transmission bus network or a real-time monitoring bus network to execute data transmission; and a part or all of the control units are respectively arranged in a small control box or control cabinet. The distributed control system disclosed by the invention utilizes a distributed control manner, and each control unit exerts optimal efficiency through distributed control and integrated monitoring and operating control, thus modularization and universalization of a control system and intelligentization of the control units are realized, dependency of the control system on a high-performance controller is reduced, and expansion capability is strong.

Description

technical field [0001] The invention relates to distributed control technology, in particular to a distributed control system applied to a crawler crane and a crane including the system. Background technique [0002] The crawler crane is a mobile crane that installs the lifting part on the crawler chassis and relies on the crawler device for walking. It can carry out operations such as material lifting, transportation, loading and unloading, and installation. Crawler cranes have the advantages of small grounding specific pressure, small turning radius, adaptability to harsh ground, large climbing capacity, good lifting performance, no need for outriggers for lifting operations, can drive with load, large operating height and range, etc. It can be used as a grab crane, electromagnetic crane or piling machine by replacing the spreader or adding special devices, realizing one machine with multiple functions. It is widely used in municipal construction, bridge construction, petr...

AI Technical Summary

Problems solved by technology

[0004] (1) The control systems of small and medium tonnage crawler cranes and their derivatives are becoming more and more intelligent, and their functions tend to be diversified. Each model or derivative requires a special control system, which is likely to cause repeated development; in addition, such The products all have the characteristics of high space utilization, but the electric control cabinet and its supporting cables occupy a lot of space, which affects the layout and appearance;

[0005] (2) With the increase of control scale and control functions of large-tonnage and super-large-tonnage crawler cranes, controllers with larger storage space, higher operating speed and stronger performance are required, which increases costs and reduces reliability;

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