【正文】
... 15 液壓缸的輸出功率 .......................................................................... 15 液壓元件的選擇 ..................................................................................... 16 液壓泵的選擇 .................................................................................. 16 IV 電動機功率的確定 .......................................................................... 17 液壓閥的選擇 .................................................................................. 18 管道尺寸的確定 .............................................................................. 19 油箱有效容積的確定 ...................................................................... 19 液壓油的選定 .................................................................................. 20 病理床液壓系統(tǒng)性能驗算 ..................................................................... 20 液壓系統(tǒng)壓力損失 .......................................................................... 20 系統(tǒng)溫升驗算 .................................................................................. 22 本章小結(jié) ................................................................................................. 23 第 3章 病理床所用液壓缸基本尺寸的設(shè)計 .................................................. 24 液壓缸主要尺寸的確定 ......................................................................... 24 液壓缸內(nèi)徑及活塞桿直徑的確定 .................................................. 24 缸筒壁厚的計算 .............................................................................. 24 缸體外徑的計算 .............................................................................. 24 液壓缸工作行程的確定 .................................................................. 24 最小導向長度的確定 ...................................................................... 25 缸體長度的確定 .............................................................................. 26 液壓缸的結(jié)構(gòu)設(shè)計 ................................................................................. 27 缸體與缸蓋的連接結(jié)構(gòu) .................................................................. 27 活塞桿與活塞的連接結(jié)構(gòu) .............................................................. 27 密封裝置 .......................................................................................... 27 液壓缸的緩沖裝置 .......................................................................... 28 液壓缸主要零件的材料 .................................................................. 28 液壓缸的安裝方法 .......................................................................... 28 本章小結(jié) ................................................................................................. 28 第 4章 病理床液壓站的設(shè)計 .......................................................................... 29 油箱 的設(shè)計 ............................................................................................. 29 液壓油箱容積的確定 ...................................................................... 29 油箱的結(jié)構(gòu)設(shè)計 .............................................................................. 30 液壓泵組的結(jié)構(gòu)設(shè)計 ............................................................................. 31 布置方式 .......................................................................................... 31 連接和安裝方式 .............................................................................. 31 V 防振降噪措施 .................................................................................. 32 本章小結(jié) ................................................................................................. 32 結(jié) 論 ................................................................................................................ 33 致 謝 ................................................................................................................ 34 參考文獻 ............................................................................................................ 35 附錄 A ................................................................................................................ 36 VI CONTENTS Abstract ...............................................................................................................II Chapter 1 Introduction ...................................................................................... 1 Summary of the Hydrauliic System ........................................................... 1 The Research of Pathological Bed ........................................................... 2 The Meaning and Purpose of the Research ................................................ 2 Chapter 2 The Design of Pathological Bed Hydraulic Servo System ............ 4 Design Requirements ................................................................................. 4 Pathological Bed Hydraulic Actuator Load Force Calculation .................. 4 Analysis of the Work ........................................................................... 4 Load of the Head Movement............................................................... 5 Load of the Knees Bent ....................................................................... 6 Load of the Trunk Movement.............................................................. 7 System Programming ................................................................................. 8 The Choice of Implementing Ageny ................................................... 8 The Choice of Speed Control Loop..................................................... 8 The Choice of Trading to the Looop ................................................... 8 The Choice of Hydraulic Source ......................................................... 8 Sequence of Movement .............................................................................. 8 The Main Calculation of Pathological Bed Hydraulic System ................ 10 Load Force of the Hydraulic Cylinder Calculat