energy   transfer   and   control   of   a   transmission   system   .Hydraulic   system   is
designed to be part of the whole machine design,its mandate is based on the
use   of   machinery,the   characteristics   and   requirements   ,using   hydraulic
transmission   to   the   basic   principle   of   drawing   up   a   reasonable   hydraulic
system   map   ,and   then   after   necessary   calculation   to   determine   the   liquid
pressure   system   parameters   ,these   parameters   and   in   acordance   with   the
choice   of   hydraulic   components   to   the   specifications   of   the   structure   and
system design.

Key words : hydraulic system, hydraulic, hydraulic ram ,machine tools,

design

设计题目

一台小型液压机的驱动电机的功率 N= 7.5KW ，转速 n=350rpm，工作台重量

G1=4000N，工件及夹具重量 G2=1500N，工作台行程 L=400mm，（快进 300mm，工进