目 录第1章 绪论.........................................................1
1.1 液压传动的工作原理及组成.................1
1.1.1 液压传动的工作原理..................1
1.1.2 液压传动系统的组成..................3
1.2 液压传动系统的职能符号.....................4
1.3 液压传动的优缺点、应用与发展.........5
1.3.1 液压传动的优缺点......................5
1.3.2 液压传动的应用..........................6
1.3.3 液压传动的发展..........................7
思考题..............................................................8
第2章 液压油与液压流体力学基础.........9
2.1 液体的物理性质.....................................9
2.1.1 液体的密度和重度......................9
2.1.2 液体的可压缩性........................10
2.1.3 液体的黏性................................11
2.1.4 对液压油的要求、选用和
使用............................................14
2.2 液体静力学基础...................................17
2.2.1 液体中的作用力........................17
2.2.2 静压力基本方程........................19
2.2.3 静压力传递原理........................20
2.2.4 液体作用于容器壁面上的力....21
2.3 流动液体力学基础...............................22
2.3.1 基本概念....................................22
2.3.2 流量连续性方程........................24
2.3.3 伯努利方程................................26
2.3.4 动量方程....................................31
2.4 管道内压力损失的计算.......................36
2.4.1 液体的流动状态........................37
2.4.2 沿程压力损失............................41
2.4.3 局部压力损失............................42
2.4.4 管路中的总压力损失................43
2.5 孔口和间隙的流量-压力特性.............44
2.5.1 孔口的流量-压力特性.............44
2.5.2 液体流经间隙的流量...............48
2.6 液压冲击和气穴现象...........................53
2.6.1 液压冲击...................................53
2.6.2 气穴现象...................................57
思考题与习题................................................60
第3章 液压泵与液压马达..........................63
3.1 液压泵与液压马达概述.......................63
3.1.1 液压泵的工作原理...................63
3.1.2 液压泵的主要性能参数...........64
3.1.3 液压马达的主要性能参数.......67
3.1.4 液压泵和液压马达的分类.......70
3.2 齿轮泵...................................................70
3.2.1 齿轮泵的工作原理...................71
3.2.2 齿轮泵的排量和流量计算.......71
3.2.3 齿轮泵的结构特点分析...........72
3.2.4 提高齿轮泵压力的措施...........73
3.2.5 内啮合齿轮泵...........................74
3.2.6 螺杆泵.......................................74
3.3 叶片泵...................................................75
3.3.1 单作用叶片泵...........................75
3.3.2 g2464作用g5347叶片泵.......................76
3.3.3 g19492压g5347g2476量叶片泵...................78
3.4 g7621g3634泵...................................................79
3.4.1 g5464g2533g7621g3634泵...............................80
3.4.2 g17736g2533g7621g3634泵...............................81
3.5 液压泵的选用.......................................84
3.6 液压马达...............................................85
3.6.1 叶片马达...................................85
3.6.2 g17736g2533g7621g3634马达...........................85
思考题与习题................................................87
液压传动
g103VIg103
g103VIg103
第4章 液压缸.................................................89
4.1 液压g13580的类g3423、特点和基本参数
计算........................................................89
4.1.1 g8975g3634g5347液压g13580............................90
4.1.2 g7621g3634g5347液压g13580............................93
4.1.3 g6682动g5347液压g13580............................93
4.1.4 g1866g1194液压g13580................................94
4.2 液压g13580的g1868g3423结构...............................95
4.2.1 g13580体组g1226....................................96
4.2.2 g8975g3634组g1226....................................97
4.2.3 密g4565g16025g13634....................................97
4.2.4 g13543冲g16025g13634....................................99
4.2.5 排气g16025g13634..................................100
4.3 液压g13580的g16786计计算.............................101
4.3.1 液压g13580的主要g4622g4556计算..........101
4.3.2 液压g13580的g7669g7692..........................103
思考题与习题..............................................104
第5章 液压控制阀......................................107
5.1 液压g19412概述.........................................107
5.1.1 液压g19412的基本结构
及工作原理..............................107
5.1.2 液压g19412的分类..........................107
5.1.3 液压g19412的性能参数..................107
5.1.4 对液压g19412的基本要求..............108
5.2 方g2533g6523g2058g19412.........................................108
5.2.1 单g2533g19412......................................108
5.2.2 g6454g2533g19412......................................111
5.3 压力g6523g2058g19412.........................................124
5.3.1 g9334流g19412......................................124
5.3.2 g1955压g19412......................................132
5.3.3 g20046g5219g19412......................................137
5.3.4 压力g13499g11017器..............................140
5.4 流量g6523g2058g19412.........................................141
5.4.1 g14422流g19412......................................141
5.4.2 g16855g17907g19412......................................144
5.4.3 g9334流g14422流g19412..............................147
5.4.4 分流g19610流g19412..............................148
5.5 g1866g1194g6523g2058g19412.........................................151
5.5.1 g17935g17765g19412.....................................151
5.5.2 g11017液g8616g1375g6523g2058g19412.....................154
5.5.3 g11017液数g4395g19412.............................160
g13520合g1375题......................................................163
思考题与习题..............................................165
第6章 液压辅助元件.................................168
6.1 管道和管g6521g3848.....................................168
6.1.1 油管的g12193类和选用.................168
6.1.2 管g6521g3848的g12193类和选用.............169
6.2 密g4565g1226.................................................171
6.2.1 密g4565g1226的作用和分类.............171
6.2.2 g8245g14026密g4565g3292的g12193类和特点.....171
6.2.3 密g4565g3455g3292.................................173
6.3 g17819g9400器.................................................173
6.3.1 液压油的g8757g7591度g12573g13435和
g8757g7591度g12573g13435的g8991g4462.................173
6.3.2 g17819g9400器的g17819g9400g12946度.................174
6.3.3 g9400油器的g1868g3423结构.................175
6.3.4 g17819g9400器的选用和g4445g16025.............177
6.4 g9921g1144g6454器.............................................179
6.4.1 液压系统的发g9921和g6967g9921.........179
6.4.2 g1931g2376器的结构与选用.............179
6.4.3 g2164g9921器的结构和选用.............181
6.5 液压油g12677.............................................182
6.6 g15000能器.................................................183
6.6.1 g15000能器的作用.........................183
6.6.2 g15000能器的类g3423.........................184
6.6.3 g15000能器的容量计算.................185
6.6.4 g15000能器的g4445g16025.........................187
思考题与习题..............................................187
第7章 液压基本回路.................................188
7.1 压力g6523g2058g3250路.....................................188
7.1.1 g16855压g3250路.................................188
7.1.2 g1955压g3250路.................................189
7.1.3 g2380g14667g3250路.................................189
7.1.4 g1457压g3250路.................................191
目 录
g103VIIg103
g103VIIg103
7.1.5 g13984压g3250路..................................192
7.1.6 g5191g15925g3250路..................................193
7.1.7 g3698压g3250路..................................194
7.2 g16855g17907g3250路.............................................195
7.2.1 概述..........................................195
7.2.2 g14422流g16855g17907g3250路..........................196
7.2.3 容g12227g16855g17907g3250路..........................202
7.2.4 容g12227g14422流g16855g17907g3250路..................206
7.2.5 g989g12193g16855g17907g3250路的g8616g17751..............208
7.3 g17907度g6454g6521g3250路.....................................209
7.3.1 g18331用g15904程g19412(g6122g11017g11925g6454g2533g19412)
的g17907度g6454g6521g3250路......................209
7.3.2 g18331用g5058动连g6521的g17907度g6454g6521
g3250路..........................................209
7.3.3 g18331用g2464泵g1391油的g17907度g6454g6521
g3250路..........................................210
7.3.4 g1016g12193工作g17907度的g6454g6521g3250路......210
7.4 方g2533g6523g2058g3250路.....................................211
7.4.1 g6454g2533g3250路..................................211
7.4.2 g19157g13051g3250路..................................214
7.5 g3822g13580动作g3250路.....................................215
7.5.1 g20046g5219动作g3250路..........................216
7.5.2 g2528g8505g3250路..................................218
7.5.3 g3822g13580工作g7114g1126g993g5190g9053g3250路......221
思考题与习题..............................................222
第8章 典型液压传动系统........................226
8.1 组合g7438g5214动力g9381g2500液压系统.............226
8.1.1 YT 4543g3423动力g9381g2500液压
系统..........................................226
8.1.2 YT 4543g3423动力g9381g2500液压的
特点..........................................229
8.2 压力g7438液压系统.................................229
8.2.1 YB 32-200g3423液压g7438的液压
系统..........................................230
8.2.2 YB 32-200g3423液压g7438
液压系统的特点......................232
8.3 g8785g17722g17227重g7438液压系统.........................233
8.3.1 g8785g17722g17227重g7438液压系统..............233
8.3.2 g8785g17722g17227重g7438液压系统的
特点.........................................236
8.4 SZ-250 Ag3423g3621g7021g8892g4568成g3423g7438液压
系统......................................................236
8.4.1 SZ-250 Ag3423g3621g7021g8892g4568成g3423g7438
液压系统.................................236
8.4.2 g8892g3621g7438液压系统的特点.........240
8.5 g2164工中g5527液压系统.............................240
8.6 M 1432Bg3423g987能g3818g3290g11964g5214液压
系统......................................................243
8.6.1 M 1432Bg3423g3818g3290g11964g5214的液压
系统.........................................244
8.6.2 M 1432Bg3423g3818g3290g11964g5214液压
系统的特点.............................248
思考题与习题..............................................249
第9章 液压传动系统的设计计算..........250
9.1 液压系统的g16786计g1393g6466和工g1929分析.....250
9.1.1 液压系统的g16786计g1393g6466.............250
9.1.2 液压系统的工g1929分析.............251
9.2 液压系统主要参数的g11842g4462.................253
9.2.1 系统工作压力的g11842g4462.............254
9.2.2 g6203g15904g1815g1226参数的g11842g4462.............254
9.2.3 g6203g15904g1815g1226流量的g11842g4462.............254
9.2.4 g6203g15904g1815g1226的工g1929g3282.................255
9.3 液压系统原理g3282的g6323g4462和方g7708
g16782g16789......................................................255
9.4 计算和选择液压g1815g1226.........................256
9.4.1 液压泵的g11842g4462与驱动功率的
计算.........................................257
9.4.2 液压g6523g2058g19412的选择.................258
9.4.3 液压辅g1226的计算与选择.........258
9.5 液压系统性能验算.............................259
9.5.1 液压系统压力损失验算.........259
9.5.2 液压系统发g9921和温升验算.....259
9.6 绘g2058正g5347工作g3282、编g2058技术文g1226.....261
9.6.1 绘g2058液压系统原理g3282的
要求.........................................261
9.6.2 液压g16025g13634的结构g16786计.............261
液压传动
g103VIIIg103
g103VIIIg103
9.6.3 编g2058技术文g1226..........................262
9.7 液压系统g16786计计算举g1375.....................263
9.7.1 负载分析..................................263
9.7.2 液压g13580主要参数的g11842g4462..........264
9.7.3 液压系统g3282的g6323订..................265
9.7.4 液压g1815g1226的选择......................268
9.7.5 液压系统的性能验算..............269
思考题与习题..............................................270
第10章 液压伺服系统...............................271
10.1 概述...................................................271
10.1.1 液压伺服系统的工作原理....271
10.1.2 液压伺服系统分类................273
10.1.3 液压伺服系统的优缺点........273
10.2 g1868g3423的液压伺服g6523g2058g1815g1226...............273
10.2.1 g9381g19412.......................................273
10.2.2 g4568流管g19412...............................275
10.2.3 喷嘴挡板g19412...........................276
10.3 g11017液伺服g19412.......................................276
10.4 液压伺服系统实g1375...........................278
10.4.1 g7438械手伸缩运动伺服系统...278
10.4.2 钢带张力g6523g2058系统...............279
10.4.3 液压助力器...........................279
思考题..........................................................280
附录 常用液压与气动元件图形符号.....281
参考文献.............................................................286
