喷浆车液压系统阀块结构的优化研究

发布时间：2018-10-25 06:16

【摘要】：近年来,喷浆车在地下铁路、高速公路、水电工程、矿山、军工设备以及各类的地下建筑工程等领域都很常见,喷浆车中的液压系统阀块是液压压力损失的主要元件。本文对喷浆车液压系统阀块的流道进行仿真分析,基于正交试验对阀块流道的取值进行最优值分析。本文主要研究内容如下:第一,介绍了喷浆车液压系统阀块的流道组合结构特征,分析了喷浆车液压系统压力损失的主要原因,提出了降低喷浆车液压系统压力损失的方法。第二,分析了喷浆车液压系统阀块直角相交流道的压力损失,提出了降低直角相交流道压力损失的方法。第三,基于FLUENT仿真软件,对喷浆车液压系统阀块三种不同形状的流道进行分析,对典型的“垂直组合型”流道、“n型组合型”流道和“反向平行组合”流道阀块流道进行流场仿真,并得出最优的组合结构。分析了影响阀块流道的刀尖角的方向,刀尖角的度数和刀尖角前δ,确定出最优的参数。第四,基于正交试验,对阀块流道的参数进行优化,比较分析结果,得出阀块流道最优化的参数。最后,总结出喷浆车液压系统比较优的阀块流道结构和参数,为喷浆车液压系统的压力损失的降低提供理论参考。
[Abstract]:In recent years, grouting vehicles are very common in the fields of underground railway, highway, hydropower engineering, mine, military equipment and various underground building engineering. The hydraulic system valve block is the main component of hydraulic pressure loss. In this paper, the flow channel of valve block in hydraulic system of jetting vehicle is simulated and analyzed, and the optimum value of valve block runner is analyzed based on orthogonal test. The main contents of this paper are as follows: firstly, this paper introduces the characteristics of the flow channel combination structure of the hydraulic system valve block, analyzes the main reasons of the pressure loss of the hydraulic system, and puts forward a method to reduce the pressure loss of the hydraulic system. Secondly, the pressure loss of the right angle AC channel of the hydraulic system valve block is analyzed, and the method of reducing the pressure loss of the right angle AC channel is put forward. Thirdly, based on the simulation software of FLUENT, three kinds of flow channels with different shapes are analyzed, and the typical "vertical combination" runner is analyzed. The flow field of the "n-type combined" channel and the "reverse parallel combination" valve block are simulated, and the optimal combination structure is obtained. The direction of the knife tip angle, the degree of the knife tip angle and the angle 未 before the knife tip angle are analyzed, and the optimum parameters are determined. Fourthly, based on the orthogonal test, the parameters of the valve block runner are optimized, and the optimum parameters of the valve block passage are obtained by comparing and analyzing the results. Finally, the structure and parameters of the valve block runner are summarized, which provide a theoretical reference for reducing the pressure loss of the hydraulic system.
【学位授予单位】：河北工程大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TH137

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