## 矿用抓岩机液压系统优化及结构优化+CAD图纸

Mine grab hydraulic system optimization design
Abstract With the increase of mining depth, the mine construction is deep transition, in vertical shaft excavation, the rock is the most hard and time-consuming process, generally accounted for about 50% ~ 60% of the work cycle time, it is usually the main factors influencing the speed of vertical shaft excavation. And widely used pneumatic grab-loader noise big, the shortcomings of high energy consumption, hydraulic grab instead of pneumatic grab is a trend of vertical shaft construction. Put into use at present, the domestic has preliminary HZY - 10 type hydraulic grab-loader, and the actual use effect is not ideal, the there is a compound actions inconsistent grab, grab open speed too slow, the problem of high oil temperature. Therefore, this article to solve above problems of HZY - 10 type hydraulic grab-loader is optimized design and research. 源Z自-六+维L论W文W网^www.lwfree.cn
There are 23 figures, 8 tables and 48 references in this paper.
Key Words:hydraulic  center of rotary  grab loader

Abstract    II
1 绪论    1
1.1 课题研究背景与意义    1
1.2 抓岩机发展概况和研究现状    5
1.3 课题主要研究及方法    6
1.4 本章小结    7
2  全液压抓岩机总体设计    8
2.1 总体方案和结构设计    8
2.2 全液压抓岩机技术参数    9
2.3 全液压抓岩机关键部件设计    11
2.4 全液压抓岩机的安装    14
2.5 本章小结    14
3 抓岩机液压系统设计    16
3.1 液压系统的性能要求    16
3.2 抓岩机液压系统设计分析    17
3.3 关键液压元件的设计计算与选型    20
3.4 液压系统油路控制方案    29
3.5 液压系统性能估算与校核    30
3.6 本章小结    34
4 基于有限元法的抓岩机结构特性研究    35
4.1 有限元理论基础及软件介绍    36
4.2 有限元模型的建立    40
4.3 抓岩机实体模型    42
4.4 抓岩机的静力学分析    45
4.5 吊臂的结构改进    48
4.6 本章小结    49
5 总结与展望    50
5.1 本文总结    50
5.2 展望    51 源Z自-六+维L论W文W网^www.lwfree.cn

1 绪论

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