In this paper,milestone events in the development of chain hoist and the development status of chain block in China are briefly introduced,various current representative chain block standards are briefly evaluated and compared,and the recommended division method of their work grades and scientific proposals adopted based on different environmental temperatures are put forward,and the reasons for the requirements of strength and safety structure in the current standards are analyzed.From the development of standards of related components,the standards adopted by lifting equipment industry at home and abroad are very unique,many domestic factories are difficult to adapt to changes.Therefore,in the face of the requirements of standardization and scientization in the new era,the author puts forward some suggestions on the development direction of chain block industry in China,the contents that can be used for reference,and application based on different conditions.
维普
万方数据