For large diameter long stroke multicylinder hydraulic system, constant pressure variable pump and quantitative pump combination were taken as hydraulic system power to satisfy economical and energysaving features. Differential connection was used when the master cylinder was rised,so installed capacity was reduced. Pilot proportional direction valve was used to control up core mould hydraulic cylinder, down core mould hydraulic cylinder and the main cylinder. The requirements of longstroke hydraulic cylinder fast movement are met,the purposes of accurate positioning of each hydraulic cylinder and preventing mechanical impact are achieved.
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邹炳燕,杨健,李颖,朱如华,王程胜,曹贝贝.80 MN胶囊硫化机液压系统设计[J].机床与液压,2016,44(8):34-36. . Design of Hydraulic System for 80 MN Bladder Vulcanizer[J]. Machine Tool & Hydraulics,2016,44(8):34-36