开路式定、变量多输出柱塞泵的研究

发布时间：2018-06-05 16:28

本文选题：开路式定、变量多输出柱塞泵 + 开路式泵　；参考：《燕山大学》2016年硕士论文

【摘要】：在高度自动化的21世纪,在科技的发展和人类的新需求下,大型智能化行走机器人应运而生。资料表明,液压技术是能量传递的重要环节,是不可或缺的一部分。不论是现在还是在未来,液压传动在国民经济发展中都占有一席之地。液压元件是液压传动技术的核心部件,所有的液压传动系统都离不开液压元件,而液压泵作为液压系统的动力元件起着至关重要的作用。其作用是将内燃机或电动机产生的机械能转换为液体的压力能,给系统提供压力油从而驱动液压系统工作。本课题基于多输出泵及开路式柱塞泵理论的基础上,研究出一种新型的开路式定、变量多输出柱塞泵,以实现流量的定、变量多输出,因其有多种组合变量输出方式,输出流量范围广,能够适应多种工况,故该泵完成后能广泛应用于只有一个原动机驱动的大型行走机械中,对于造船、载重机、石油开采等行业,具有重要意义。本文首先根据大型行走机械的压力及流量需求确定泵的输出压力及流量,确定了泵的输出排量、压力。进而对泵的结构进行设计,根据输出排量、压力的要求合理的选定了泵的各个零部件的尺寸,做出结构原理图,后用三维建模软件solidworks对泵的各个零部件进行建模,根据结构原理图对各个零部件进行装配,从而直观的反映了泵的立体效果,通过对关键零部件传动轴进行受力仿真分析,确定了传动轴在强度及刚度上均满足要求。后基于仿真软件AMEsim对泵进行参数模拟及动态仿真,模拟了泵在不同工况下输出流量及压力曲线,为以后更好的设计多输出柱塞泵打下了基础。
[Abstract]:In the 21st century, with the development of science and technology and the new demand of human, the large intelligent walking robot emerges as the times require. The data show that hydraulic technology is an important part of energy transfer and an indispensable part. Whether now or in the future, hydraulic transmission in the development of the national economy have a place. Hydraulic components are the core components of hydraulic transmission technology, all hydraulic transmission systems can not be separated from hydraulic components, and hydraulic pump as a power component of hydraulic system plays a vital role. Its function is to convert the mechanical energy produced by internal combustion engine or motor into the pressure energy of liquid, to provide pressure oil to the system and to drive the hydraulic system. Based on the theory of multi-output pump and open-circuit piston pump, a new type of open-circuit and variable multi-output piston pump is developed in this paper. The output flow range is wide and can adapt to various working conditions, so the pump can be widely used in large walking machinery with only one prime mover after completion, which is of great significance for shipbuilding, load-carrying machine, oil exploitation and other industries. In this paper, the output pressure and flow rate of the pump are determined according to the pressure and flow demand of the large traveling machinery, and the output displacement and pressure of the pump are determined. Then the structure of the pump is designed. According to the output displacement and pressure requirements, the dimensions of each part of the pump are reasonably selected, and the structure schematic diagram is made, and then each part of the pump is modeled by the three-dimensional modeling software solidworks. According to the structure schematic diagram of the assembly of the various parts, thus reflecting the three-dimensional effect of the pump intuitively. Through the simulation analysis of the force of the key parts transmission shaft, it is determined that the strength and stiffness of the transmission shaft meet the requirements. The pump parameters and dynamic simulation are simulated based on the simulation software AMEsim. The output flow and pressure curves of the pump under different working conditions are simulated, which lays the foundation for better design of multi-output piston pump in the future.
【学位授予单位】：燕山大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TH137.51

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