Miniaturization, Lightweight And Diversification Of Common Crane Products
Apr 23, 2022
There are quite a lot of cranes used in general-purpose occasions, and the work is not very heavy. This type of crane has a large batch and a wide range of uses. Considering the comprehensive benefits, the crane is required to reduce the height of the shape as much as possible, simplify the structure, reduce the self-weight and wheel pressure, and can also name the entire building. Therefore, electric hoist bridge cranes and girder cranes will develop faster, and will mostly replace general-purpose bridge cranes of small and medium tonnage.
After decades of development and innovation, Demag Germany has formed a series of light-duty combined standard cranes. The lifting capacity is 1~80 tons, and the working level is A1~A7. The whole series is composed of I-shaped and box-shaped single beams, suspended box-shaped single beams, angle trolley box-shaped single beams and box-shaped double beams. The main beam and the end beam are connected and the arrangement of the lifting trolley has various types, which can meet the requirements of different buildings and different lifting heights.
The renewal and development of cranes depends to a large extent on the improvement of electric drive and control. Combining mechanical technology and electronic technology, applying advanced computer technology, microelectronic technology, power electronic technology, optical cable technology, hydraulic technology, and fuzzy control technology to the mechanical drive and control system to realize the automation and intelligence of cranes. The new generation of electrical control devices for large and efficient cranes has been developed into a fully electronic digital control system. It is mainly composed of fully digital control drive device, programmable logic controller, fault diagnosis and data management system, digital manipulation given detection and other equipment.
