900吨轮胎式提梁机转向系统设计分析与研究

发布时间：2018-01-24 00:19

本文关键词： 提梁机转向液压系统 AMESim 仿真　出处：《河南科技大学》2012年硕士论文　论文类型：学位论文

【摘要】：轮胎式提梁机是一种搬运重型设备和构件的专用车辆，普遍用于高铁客运专线箱梁的搬运和大型船舶分段等重载场合，是“机、电、液”高度结合的大型起重运输设备。其转向轮组液压系统是提梁机液压系统的重要组成部分，对整个车辆的搬运性能起到至关重要的作用，转向轮组液压系统的性能直接影响到整车行走的机动灵活性、操纵稳定性和使用经济性。本论文以900吨轮胎式提梁机转向轮组液压系统为研究对象，为了满足提梁机转向灵活性的要求，通过对提梁机多种转向模式的分析和最大阻力矩的计算，初步确定液压系统参数，，在综合考虑各种因素，关键液压元件选用Rexroth产品，确定了开式负载敏感转向液压系统方案，具有良好的节能效果和操作特性。本文通过对转向液压系统所选用液压元件的原理和结构的分析研究，建立了比较完善的负载敏感泵和力士乐M4多路阀数学模型，并采用国际先进的液压仿真软件—AMESim对整个转向轮组液压系统特性进行仿真，通过对各仿真模型参数及仿真时间的设置，可以精确地观察各参数仿真曲线变化规律；通过分析相同工况下各系统的压力流量及功率特性，最后利用FESTO液压控制试验台上搭建模拟转向液压系统，分析试验结果与计算结果和仿真情况对比，结果基本保持一致，得出转向液压系统具有良好的节能型和操作性的结论。本文采用的研究方法和得到的相应结论，不仅对变量柱塞泵和多路阀的建模仿真提供了较好的理论参考依据，而且对今后重型多轴车辆转向液压系统的设计和研究分析具有实际的参考价值。
[Abstract]:Tire beam lifting machine is a special vehicle for carrying heavy equipment and components. It is generally used for carrying box girder of high-speed railway passenger dedicated line and heavy load occasions such as large ship segment. It is "machine, electricity". The hydraulic system of steering wheel group is an important part of hydraulic system of beam lifting machine, and plays an important role in the handling performance of the whole vehicle. The performance of steering wheel group hydraulic system has a direct impact on the maneuverability, handling stability and operation economy of the whole vehicle. In this paper, the hydraulic system of the steering wheel set of 900 ton tire beam lifting machine is taken as the research object. In order to meet the requirements of steering flexibility of the beam lifting machine, the analysis of various steering modes and the calculation of the maximum resistance moment of the beam lifting machine are carried out. The parameters of the hydraulic system are preliminarily determined, and the key hydraulic components are selected as Rexroth products in the comprehensive consideration of various factors, and the open load-sensitive steering hydraulic system scheme is determined. This paper analyzes the principle and structure of hydraulic components used in steering hydraulic system. A more perfect mathematical model of load sensitive pump and Rexroth M4 multi-way valve is established, and the characteristics of the whole steering wheel group hydraulic system are simulated by the advanced international hydraulic simulation software AMESim. By setting the parameters of each simulation model and simulation time, we can accurately observe the variation law of simulation curve of each parameter. By analyzing the pressure, flow and power characteristics of each system under the same working conditions, the simulated steering hydraulic system is built on the FESTO hydraulic control test rig, and the test results are compared with the calculated results and the simulation results. The results are basically consistent, and the conclusion is that steering hydraulic system has good energy saving and maneuverability. The research method and the corresponding conclusions obtained in this paper not only provide a good theoretical reference for modeling and simulation of variable piston pump and multi-way valve. Moreover, it has practical reference value for the design, research and analysis of steering hydraulic system of heavy duty multi-axle vehicle in the future.
【学位授予单位】：河南科技大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH22

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