Status and cranes Development Trends

For decades after World War II, the major industrialized countries have begun to pay attention to the design technology research,  bridge gantry crane  design technical level has also been rapid development. England since the 1960s, with regard to national policy and financial resources to support the development and promotion of innovative design; Germany presents "Design is science," it Design development has reached a considerable scale; U.S. established a "design committee"; Japan also attaches great importance to the development of design technology, will be designed as a technical, economic, aesthetic and ergonomic integrated whole and are trying to promote and adopt new technologies. In short, more and more emphasis on economic and technical design work and developed large scale introduction of innovative design, making the entire mechanical and electrical products also includes the lifting of product design, safety and reliability, technical and economic aspects of the changes happening faster and faster, design level is also increasing.

Chinese  overhead gantry crane  design development has experienced a tortuous process. More than before is mainly designed to imitate the former Soviet Union, with the designer's experience, the product design is very restrictive. From the 1960s onwards, started a new product development and design of new components and experimental research work, so that the design and experience design from imitation gradually experimental and computational analysis phase. In the 1980s, a number of large enterprises such as Baosteel crane introduction of foreign and joint design with foreign and domestic manufacturing, and other forms of adoption, the country began to introduce a number of international advanced technology and design methods. At the same time the introduction of the computer application technology design, design work on the development of the crane played a great role in promoting.

However, the Chinese crane design field there are still many problems, mainly SMEs, mostly research and analysis on the design is not enough, less capital investment, personnel training work to keep the needs of development, has not formed to develop new products or update old product design and resilience, the introduction of advanced technologies and products, from a design point of view is not digested, and no ability to re-innovation. Do not form a rational echelon designers, product remains unchanged for decades like, still copy from the current way of life, do not own the intellectual property rights, just brought in to meet the contract price. One of the few large-scale enterprises in the innovative design of the rapid development of the domestic  bridge crane  design ability and level gradually with foreign advanced design shortens the distance. These companies have extensive use of new computer technology, two-dimensional CAD has long been popular, three-dimensional design has been extended. Electrical design using ED and other advanced design tools, the introduction of stator voltage and frequency control, PLC participate in the system control, using a large number of high-tech sensing components, to achieve accurate positioning, easy manipulation, its safety and reliability are also gradually improved. Through the application of expert systems, which greatly promoted the innovative design of the process, and the use of modern information theory, system theory and computer application technology research, innovative design makes the crane began to intelligent direction.