An adjustable speed regulation circuit for lifting mechanism was developed,to reduce the impact of the hydraulic pressure on the hydraulic machine.At the same time, the uniform velocity of the moving beam was obtained under the condition of changing load.Its fall speed depended on the valve orifice flow area of speed valve.
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丘永亮,邱腾雄,陈伟俊.一种提升机构节流调速回路设计[J].机床与液压,2015,43(22):116-117. . Development of an Adjustable Speed Regulation Circuit for Lifting Mechanism[J]. Machine Tool & Hydraulics,2015,43(22):116-117