液压轴向柱塞泵的噪声分析及结构改进的设计

机械论文编号:JX381  附开题报告,任务书,外文翻译,实习报告,设计图纸,论文字数:20286.页数:36  
目  录
内 容 提 要 I
Summary II
目  录 I
1 绪论 1
1.1 液压技术概述 1
1.2 国内外液压技术研究开发水平及发展趋势 2
1.3 课题的研究意义及研究内容 5
2  液压泵概述 6
2.1 液压泵的工作原理与分类 6
2.2 液压泵的主要性能参数 7
2.3 轴向柱塞泵简介 8
3  泵的噪声分析及降噪方法 13
3.1 液压泵噪声分析 13
3.2 CY14-1B型轴向柱塞泵噪声研究 14
3.3 摩擦副产生噪声分析及零件材料的选择 16
3.4 降噪方法 17
4 轴向柱塞泵结构改进 18
4.1 采用柱塞包滑靴的结构 18
4.2 配油盘结构改进 19
4.3 轴承的改进 20
4.4 其它改进 20
5 泵的噪声对比实验分析 21
5.1 降噪配油盘与普通配油盘对比实验 21
5.2 柱塞包滑靴新结构与旧结构对比实验 25
6 改进泵概述 29
总 结 30
参考文献 31
致 谢 33

内 容 提 要
液压泵是液压系统的动力元件，其性能的好坏直接影响到液压系统的工作性能和可靠性，在液压传动中占有极其重要的地位。
设计主要有两个部分的内容：液压轴向柱塞泵的噪声分析和结构的改进。其中论文主要集中在液压轴向柱塞泵的噪声分析及实践中对改进后与改进前的对比实验。首先从液压泵的基本原理着手，结合轴向柱塞泵自身的特点进行介绍。然后分析对于轴向柱塞泵噪声的影响因素以及改进的方法，优化结构又与哪些因素有关联，逐步地说明改进设计的由来及设计步骤。
本次设计对轴向柱塞泵降低噪声的改进，主要是从影响其噪声的三个摩擦副（缸体与配流盘的摩擦、变量头与滑靴的摩擦、柱塞与柱塞孔的摩擦）进行分析，并对其主要摩擦——缸体与配流盘的摩擦进行了结构改进及采用了柱塞包滑靴的结构。经过实验发现，配流盘上的鼠尾的长度直接影响泵的噪声，于是作者对配流盘上的鼠尾长度经过一系列的实验，最后找到了比较合适的尺寸。在这系列的实验中，选取了几组缸体与配流盘进行对比实验，取得了满意的效果。
本次设计的主要优点，就是一切从生产实践和试验出发，具有良好的应用前景和较好的经济价值。

Summary
Hydraulic pump is the power component of hydraulic  systems, its performance has a direct impact on the performance and reliability of the hydraulic system, it plays a important part in the hydraulic transmission.
The content of paper includes two parts: the noise analysis of hydraulic axial piston pump and improved design of structure. This paper focused on the noise analysis of hydraulic axial piston pump and the contrast experiment before and after the improved design. First based on the basic principles of hydraulic pumps, the axial piston pump is introduced combining with their own characteristics. Then, the impact factors for axial piston pump noise is analyzed, as well as improved methods and what factors are related to optimized structure. Finally, the reason of improved design and the design steps is showed gradually.
The improved design to reduce the noise of the axial piston pump mainly analyze on the three pairs of friction which influenced on the noise of the axial piston pump, such as: the friction between cylinder and plate, the friction between variable and slipper, the friction between plunger and the plunger hole. The paper improves the structure of the first friction and use the structure of slipper with the plunger packaged. The experiment was been proved that the length of the rat tail belong to plate which influence the pump noise. Through a series of experiment on the length of rat tail to found a proper dimension. During the experiment, satisfactory results were achieved because of several groups cylinder and plates were selected in experiment.
Main advantage of this text,all with trial-produce experiment set out,have good application prospect and better economic worth from production practices.