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It is understood that China's research and development of large-scale lifting equipment such as marine cranes and floating cranes on engineering ships is in its infancy. Previously, no manufacturer was able to design and manufacture heavy-duty marine cranes according to “API2Câ€. Only a few Western developed countries such as Europe, America and Japan were able to design and manufacture such products, possessing independent intellectual property rights and monopolizing the international market. Compared with the general offshore platform cranes, the heavy-duty marine cranes designed according to the “API2C†specification have greater technical difficulty and research and development risks. Together with the foreign technical blockade, China has designed and manufactured heavy-duty marine cranes according to the “API2C†specification. Long-term blank.
The “Development and Development of Heavy-Duty Marine Cranes†undertaken by CSSC Huanan Ship Machinery Co., Ltd. is aimed at tackling the key common technologies of marine cranes, and innovatively proposes heavy-duty single-slewing bearings, A-frames and truss-type booms to make them compact. The characteristics of light weight, heavy load, large working radius and high efficiency meet the requirements of heavy-duty lifting operations and adapt to harsh sea conditions. At the same time, the closed hydraulic system and closed hydraulic constant tension technology independently developed by the project effectively solve the problems of large vibration and impact of the rotary and hoisting systems and unstable operation under severe sea conditions. The system has small energy loss and stable operation. The project obtained 2 utility model patents such as constant tension wave compensation device, and applied for 2 invention patents. The products passed the certification of Lloyd's Register of Shipping.
The heavy-duty marine crane designed and produced by the project is 100 tons lighter than the international first-class brand of the same brand under the same performance conditions, and it is the first in China. In the international market, especially in the ASEAN market, it has strong competitiveness.
Recently, the “Development and Development of Heavy-Duty Marine Cranes†undertaken by Guangxi Yinzhou Zhongnan Huanan Ship Machinery Co., Ltd. passed the appraisal of scientific and technological achievements organized by Guangxi Science and Technology Department, which filled the blank of China’s design and manufacture of heavy-duty marine cranes according to the “API2C†specification. Technical research has reached the international advanced level of its kind.