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Zhejiang Machinery and Electrical Group

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Editorial of Journal of Mechanical & Electrical Engineering

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LUO Xiang-yang






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Energy-saving drive technology of large inertia and high frequency start-stop hydraulic slewing mechanism
Published:2022-09-22 author:HE Lei, LIU Zhi-qi, LIU Xuan-zuo, et al. Browse: 540 Check PDF documents
Energy-saving drive technology of large inertia and high 
frequency start-stop hydraulic slewing mechanism

HE Lei, LIU Zhi-qi, LIU Xuan-zuo, GAO You-shan

(School of Mechanical Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China)

Abstract:  Aiming at the problems of large energy loss, low resource utilization and poor starting and braking performance in the large inertia high-frequency start-stop slewing mechanism in mechanical equipment, the energy-saving drive technology for recovering the braking energy of the large-inertia high-frequency start-stop slewing mechanism was reviewed. Firstly, the working principle of the traditional hydraulically driven slewing mechanism and the causes of energy waste were introduced. Then, the research results of energy-saving drive technology for large inertia high-frequency start-stop slewing mechanisms at home and abroad were introduced from four aspects: hydraulic energy storage, electric energy storage, electro-hydraulic energy storage and mechanical energy storage. Finally, the advantages and disadvantages of these four aspects were analyzed and summarized. The research results show that there are certain problems in the technology of realizing energy recovery by adding related energy storage elements in the existing energy-saving systems: the elements themselves have energy consumption, the added elements can increase the complexity of the system, and the energy conversion process during the energy storage process also has energy loss. Therefore, reducing the number of components added in the energy-saving drive system, improving and enhancing the performance of the components, and improving the matching between different components are the key points and difficulties of the energy-savingdrive technology. Developing new high-efficiency energy storage components to realize the integration of energy-saving drive process of large inertia and high-frequency start-stop slewing mechanism, and combining intelligent algorithms with energy recovery technology become a new development trend of energy-saving drive technology.

Key words: hydraulic drive slewing mechanism; energy recovery; mechanical energy storage;hydraulic energy storage;electrohydraulic energy storage;electric energy storage
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