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  本文選題：制動器　切入點：定位車　出處：《燕山大學》2012年碩士論文　論文類型：學位論文

【摘要】：翻車機系統(tǒng)是散貨裝卸車機械的一種，在港口、鋼廠和電廠中應(yīng)用較為廣泛。翻車機系統(tǒng)的定位車和推車機上的制動器動作頻繁,可靠性要求很高。本課題針對目前翻車機系統(tǒng)中推車機、定位車設(shè)備的電磁制動器電路板無法正常使用，頻繁燒損的現(xiàn)象，設(shè)計了一種以液壓為動力源的制動器。此種制動器結(jié)構(gòu)簡單、易于操作、工作可靠、成本低。 本文首先對翻車機卸車系統(tǒng)的組成、基本結(jié)構(gòu)和工作流程進行了詳細的介紹，在此基礎(chǔ)上，分析了推車機、定位車電磁制動系統(tǒng)的使用現(xiàn)狀和出現(xiàn)的故障問題。為了克服原電磁制動器的電路板受電壓及諧波的影響嚴重，，采取以液壓集中控制代替原電磁鐵控制的方法。針對具體工況要求設(shè)計了液壓系統(tǒng)原理圖，進行了液壓缸的具體設(shè)計參數(shù)計算，對所需液壓元件進行了選取。 文中借助有限元分析軟件ANSYSWorkbench中的靜力分析和優(yōu)化設(shè)計模塊，對液壓缸缸筒進行了靜力分析，并對缸筒壁厚進行了優(yōu)化。在滿足缸筒應(yīng)力和變形的條件下，減輕了缸筒的質(zhì)量，與傳統(tǒng)的經(jīng)驗設(shè)計法相比，基于分析軟件ANSYSWorkbench的設(shè)計方法提高了材料的利用率，降低了產(chǎn)品的生產(chǎn)成本，為液壓缸的設(shè)計與優(yōu)化提供了一種有效可行的方法。 使用AMESim仿真軟件，對反饋信號分別為系統(tǒng)壓力和活塞桿位移兩種情況下的系統(tǒng)進行了仿真分析。通過分析得出壓力反饋信號液壓系統(tǒng)性能較好,和理論推導相適應(yīng)偏差較小，位移反饋液壓系統(tǒng)和理論推導相比存在一定的滯后，并根據(jù)仿真結(jié)果找出了改進系統(tǒng)的辦法。以液壓制動器為例分析了液壓系統(tǒng)使用過程中可能的污染來源，接著以不同的來源情況下提出了幾種液壓系統(tǒng)預(yù)防和治理的辦法。為制動器系統(tǒng)更好的應(yīng)用于工作中，和提高系統(tǒng)工作性能，延長工作壽命做了一定的理論鋪墊。
[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.
【學位授予單位】：燕山大學
【學位級別】：碩士
【學位授予年份】：2012
【分類號】：TH137;TH248

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本文編號：1598004