神华黄骅港定位车液压制动器的研究

发布时间：2018-03-11 11:39

本文选题：制动器　切入点：定位车　出处：《燕山大学》2012年硕士论文　论文类型：学位论文

【摘要】：翻车机系统是散货装卸车机械的一种，在港口、钢厂和电厂中应用较为广泛。翻车机系统的定位车和推车机上的制动器动作频繁,可靠性要求很高。本课题针对目前翻车机系统中推车机、定位车设备的电磁制动器电路板无法正常使用，频繁烧损的现象，设计了一种以液压为动力源的制动器。此种制动器结构简单、易于操作、工作可靠、成本低。本文首先对翻车机卸车系统的组成、基本结构和工作流程进行了详细的介绍，在此基础上，分析了推车机、定位车电磁制动系统的使用现状和出现的故障问题。为了克服原电磁制动器的电路板受电压及谐波的影响严重，，采取以液压集中控制代替原电磁铁控制的方法。针对具体工况要求设计了液压系统原理图，进行了液压缸的具体设计参数计算，对所需液压元件进行了选取。文中借助有限元分析软件ANSYSWorkbench中的静力分析和优化设计模块，对液压缸缸筒进行了静力分析，并对缸筒壁厚进行了优化。在满足缸筒应力和变形的条件下，减轻了缸筒的质量，与传统的经验设计法相比，基于分析软件ANSYSWorkbench的设计方法提高了材料的利用率，降低了产品的生产成本，为液压缸的设计与优化提供了一种有效可行的方法。使用AMESim仿真软件，对反馈信号分别为系统压力和活塞杆位移两种情况下的系统进行了仿真分析。通过分析得出压力反馈信号液压系统性能较好,和理论推导相适应偏差较小，位移反馈液压系统和理论推导相比存在一定的滞后，并根据仿真结果找出了改进系统的办法。以液压制动器为例分析了液压系统使用过程中可能的污染来源，接着以不同的来源情况下提出了几种液压系统预防和治理的办法。为制动器系统更好的应用于工作中，和提高系统工作性能，延长工作寿命做了一定的理论铺垫。
[Abstract]:The dumper system is a kind of bulk loading and unloading machine, which is widely used in ports, steel mills and power plants. The reliability requirement is very high. This subject aims at the phenomenon that the electromagnetism brake circuit board of the positioning vehicle equipment can not be used normally, and it is frequently burned out. A hydraulic brake is designed, which is simple in structure, easy to operate, reliable in operation and low in cost. In this paper, the composition, basic structure and work flow of the dump truck unloading system are introduced in detail, and on this basis, the trolley machine is analyzed. In order to overcome the influence of voltage and harmonics on the circuit board of the original electromagnetic brake, This paper adopts the method of replacing the original electromagnet control with the hydraulic centralized control, designs the principle diagram of the hydraulic system according to the specific working conditions, calculates the specific design parameters of the hydraulic cylinder, and selects the required hydraulic components. In this paper, the static analysis and optimization design module of the finite element analysis software ANSYSWorkbench are used to analyze the cylinder statically, and the wall thickness of the cylinder is optimized. The quality of the cylinder is reduced under the condition of satisfying the stress and deformation of the cylinder. Compared with the traditional empirical design method, the design method based on the analysis software ANSYSWorkbench improves the material utilization ratio, reduces the production cost, and provides an effective and feasible method for the design and optimization of the hydraulic cylinder. By using AMESim simulation software, the system with feedback signal of pressure and displacement of piston rod is simulated and analyzed. It is concluded that the hydraulic system of pressure feedback signal has better performance, and the deviation of adaptation to theoretical derivation is small. The displacement feedback hydraulic system has some lag compared with the theoretical deduction, and the method to improve the system is found according to the simulation results. Taking the hydraulic brake as an example, the possible sources of pollution in the process of the hydraulic system are analyzed. Then several methods of hydraulic system prevention and treatment are put forward under different sources, which provides a theoretical basis for better application of brake system in work, improvement of system performance and prolongation of working life.
【学位授予单位】：燕山大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH137;TH248

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