毕业设计说明书
题目名称：一种轴向柱塞泵的结构设计及其造型 院系名称： 机电学院 班 级： 机自XX 学 号： XXXXXXXXXXXXX 学生姓名： XXXXXXX 指导教师： XXXXXX
2012年6月
中原工学院毕业设计（论文）
摘要
斜盘式轴向柱塞泵是液压系统中的主要部件，它是靠柱塞在柱塞腔内的往复运动，改变柱塞腔内容积实现吸油和排油的，是容积式液压泵。对于斜盘式轴向柱塞泵，柱塞、滑靴、配油盘、缸体是其重要部分。柱塞是其主要受力零件之一；滑靴是高压柱塞泵常采用的形式之一，它能适应高压力高转速的需要；配油盘与缸体直接影响泵的效率和寿命。由于配油盘与缸体、滑靴与柱塞这两对高速运动副均采用了一静压支承，省去了大容量止推轴承，因此它具有结构紧凑、零件少、工艺性好、成本低、体积小、重量轻、比径向泵结构简单等优点。由于斜盘式轴向柱塞泵容易实现无级变量、维修方便等优点，因而斜盘式轴向柱塞泵在技术经济指标上占很大优势。 关键词:斜盘,柱塞泵,轴向
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中原工学院毕业设计（论文）
An axial piston pump structure design and modelling
ABSRACT
The inclined dish type and axial pump with a pillar is a main part in liquid
press system，The inclined dish type and axial pump with a pillar is a back and forth movement by pillar to fill the inside of the pillar cavity，in order to change the pillar fills the contents of cavity to realize the oil of inhaling with line up oily，Is a capacity type liquid to press the pump .Fill to pillar to pump for the inclined dish type stalk the pillar fill, slip the boots and go together with the oil dish an is its importance part. The pillar fills is it suffer the one of the dint spare parts primarily. The slippery boots is one of the form that high pressure pillar fill the pump to often adopt. It can adapt to the high demand turning soon in high pressure dint, go together with the oil dish and the efficiency of the direct influence in a pump with life span. Because of going together with the oil dish fills ,pillar and a slippery boots these two rightness of high speeds the sport the vice- all adopting a the static pressure accepts. The province went to the big capacity push the bearings, have the construction tightly packed, the spare parts is little, the craft is good, the cost is low, the physical volume is small, the weight is light, comparing the path face to pump the construction simple etc. Because the inclined dish type stalk fills to pillar the pump to realizes to have no easily the class changes the deal, maintain convenience and so on. Key words：The Inclined Dish Pillar Pump Axial Pump
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中原工学院毕业设计（论文）
目录
摘要 .................................................................................................................................................. 1 ABSRACT ........................................................................................................................................ 2 前言 .................................................................................................................................................. 4 1 直轴式轴向柱塞泵工作原理与性能参数 ................................................................................. 6
1.1 直轴式轴向柱塞泵工作原理 ......................................................................................... 6 1.2 直轴式轴向柱塞泵主要性能参数 ................................................................................. 6
1.2.1 排量、流量、容积效率与结构参数 ................................................................. 7 1.2.2 扭矩与机械效率 ................................................................................................. 8 1.2.3 功率与效率 ......................................................................................................... 8
2 直轴式轴向柱塞泵运动学及流量品质分析 ........................................................................... 10
2.1 柱塞运动学分析 ........................................................................................................... 10
2.1.1 柱塞行程 S ...................................................................................................... 10 2.1.2 柱塞运动速度分析 V ....................................................................................... 11 2.1.3 柱塞运动加速度a ............................................................................................ 11 2.2 滑靴运动分析 ............................................................................................................... 12 2.3 瞬时流量及脉动品质分析 ........................................................................................... 13
2.3.1 脉动频率 ............................................................................................................. 14 2.3.2 脉动率 ................................................................................................................. 14
3 柱塞泵主要部件的设计与受力分析 ....................................................................................... 16
3.1 柱塞设计与受力分析 ................................................................................................... 16
3.1.1 柱塞结构形式 ................................................................................................... 16 3.1.2 柱塞结构尺寸设计 ........................................................................................... 16 3.1. 3 柱塞受力分析 .................................................................................................... 17 3.2 滑靴设计 ....................................................................................................................... 20
3.2.1 滑靴设计常用剩余压紧力法 ........................................................................... 20 3.2.2 滑靴结构型式与结构尺寸设计 ....................................................................... 21 3.3 配油盘受力分析与设计 ............................................................................................... 23
3.3.1 配油盘设计 ....................................................................................................... 23 3.3.2 配油盘受力分析 ............................................................................................... 25 3.3.3 验算比压P 、比功Pv .................................................................................. 26 3.4 缸体设计 ....................................................................................................................... 27
3.4.1 缸体的稳定性 ................................................................................................... 27 3.4.2 缸体主要结构尺寸的确定 ............................................................................... 27 3.5 轴的校核 ....................................................................................................................... 29 3.6 中心弹簧的计算 ........................................................................................................... 30 4 变量机构 ................................................................................................................................. 34 结论 ................................................................................................................................................ 36 参考文献......................................................................................................................................... 37 致谢 ................................................................................................................................................ 38
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