Design of the small-sized hydraulic wrench

This paper mainly introduced the research status of hydraulic wrench, the current hydraulic wrench is not suitable for single manual operation, it was mainly used to remove large size bolt, such as above M20. In order to adapt to the demands of the market development, and meet the requirements that one person can conveniently operate on some equipment, the small-sized hydraulic wrench was designed by us through the combinations of “hydraulic motor + reducer + impactor” in this paper. As the emergence of the small-sized hydraulic wrench, which can reduce the workers labor intensity and improve the work efficiency.