外文翻译-半自动堆高机（便捷式）的设计.doc

本科毕业设计(论文) 外文翻译（附外文原文） 学 院： 机控学院 课题名称： 半自动堆高机 （便捷式）的设计 专业(方向)：机械设计制造及其自动化 （机械装配设计与制造） 班 级： 机械11-2班 学 生： 李桓 指导教师： 孙金荣 日 期： 2015年3月10日 Hydraulic?System Hydraulic?presser?drive?and?air?pressure?drive?hydraulic?fluid?as?the?transmission?is?made?according?to?the?17th?century,?Pascals?principle?of?hydrostatic?pressure?to?drive?th-e?development?of?an?emerging?technology,?the?United?Kingdom?in?1795???Braman?Jo-seph?(Joseph?Braman?,1749-1814),?in?London?water?as?a?medium?to?form?hydraulic?pre-ss?used?in?industry,?the?birth?of?the?worlds?first?hydraulic?press.?Media?work?in?1905?will?be?replaced?by?oil-water?and?further?improved.? After?the?World?War?I?(1914-1918)?,because?of?the?extensive?application?of?hydraulic?transmission,?especially?after?1920,?more?rapid?development.?Hydraulic?components?in?the?late?19th?century?about?the?early?20th?century,?20?years,?only?started?to?enter?the?formal?phase?of?industrial?production.?1925?Vickers?(F.?Vikers)?the?invention?of?the?pressure?balanced?vane?pump,?hydraulic?components?for?the?modern?industrial?or?hydraulic?transmission?of?the?gradual?establishment?of?the?foundation.?The?early?20th?century?G???Constantimscofluctuations?of?the?energy?carried?out?by?passing?theoretical?and?practical?research;?in?1910?on?the?hydraulic?trans-?mission?(hydraulic?coupling,?hydraulic?torque?converter,?etc.)?contributions,?so?that?these?two?areas?of?development.? The?Second?World?War?(1941-1945)?period,?in?the?United?States?30%?of?machine?tool?applications?in?the?hydraulic?transmission.?It?should?be?noted?that?the?development?of?hydraulic?transmission?in?Japan?than?Europe?and?the?United?States?and?other?countries?for?nearly?20?years?later.?Before?and?after?in?1955,?the?rapid?development?of?Japans?hydraulic?drive,?set?up?in?1956,?Hydraulic?Industry.?Nearly?20?to?30?years,?the?development?of?Japans