【正文】 本科畢業(yè)設(shè)計(jì)（論文） 題 目 WY100 液壓履帶挖掘機(jī)總體及工作裝置設(shè)計(jì)及運(yùn)動(dòng)仿真 學(xué) 科 專 業(yè) 機(jī)械設(shè)計(jì)制造及其自動(dòng)化 班 級(jí) 姓 名 指 導(dǎo) 教 師 輔 導(dǎo) 教 師 摘要 液壓挖掘機(jī)是工程機(jī)械的重要產(chǎn)品之一 ，具有較高的技術(shù)含量。工作機(jī)構(gòu)是液壓挖掘機(jī)的主要裝備， 機(jī) 構(gòu)各鉸點(diǎn)以及其具體結(jié)構(gòu)的設(shè)計(jì)將是決定工作機(jī)構(gòu)性能水平的重要因素，決定了液壓挖掘機(jī)的工作性能，影響其最終使用性能的好壞， 所以對(duì)液壓挖掘機(jī)工作機(jī)構(gòu)的研究是十分有必要的。 液壓挖掘機(jī)的主要特點(diǎn)為：能無(wú)級(jí)調(diào)速且調(diào)速范圍大，能得到較低的穩(wěn)定轉(zhuǎn)速，快速作用時(shí)，液壓元件產(chǎn)生的運(yùn)動(dòng)慣性小，加速性能好，并可作高速反轉(zhuǎn)，傳動(dòng)平穩(wěn)，結(jié)構(gòu)簡(jiǎn)單，可吸收沖擊和 振動(dòng)，操縱省力，易實(shí)現(xiàn)自動(dòng)化控制，易于實(shí)現(xiàn)標(biāo)準(zhǔn)化、系列化、通用化。 本次設(shè)計(jì)的題目是 WY100 液壓履帶挖掘機(jī)總體及工作裝置設(shè)計(jì)及運(yùn)動(dòng)仿真 。這種類型的挖掘機(jī)與其它類型的挖掘機(jī)相比，因有良好的性能而應(yīng)用最廣，對(duì)松軟地面或沼澤地帶還可采用加寬、加長(zhǎng)以及浮式履帶來(lái)降低接地比壓。 本次設(shè)計(jì)完成的主要任務(wù)有 ： 挖掘機(jī) 的 類型 及發(fā)展概況 、 液壓挖掘機(jī) 的總體設(shè)計(jì) 液壓挖掘機(jī) 工作 阻力的計(jì)算、液壓挖掘機(jī)工作裝置的設(shè)計(jì) 、 液壓挖掘機(jī)工作裝置的受力分析和強(qiáng)度校核、 挖掘機(jī) 工作裝置液壓系統(tǒng)的設(shè)計(jì)、 挖掘機(jī)工作 裝置 的運(yùn)動(dòng) 仿真 本次設(shè)計(jì)的主要參數(shù)是斗 容量 ,它屬于中小型液壓挖掘機(jī)，主要設(shè)計(jì)挖掘機(jī)的工作裝置及進(jìn)行運(yùn)動(dòng)仿真。挖掘機(jī)的工作裝置是直接完成挖掘任務(wù)的裝置，本設(shè)計(jì)對(duì)工作裝置的各個(gè)組成部分進(jìn)行了較為詳細(xì)的設(shè)計(jì)，這其中包括了動(dòng)臂、斗桿和鏟斗及其驅(qū)動(dòng)裝置的設(shè)計(jì)。 在設(shè)計(jì)中，采用了履帶式行走裝置，來(lái)滿足要求。上部轉(zhuǎn)臺(tái)是全回轉(zhuǎn)式，因此它可在一個(gè)更大的范圍內(nèi)工作。又因采用液壓傳動(dòng)控制而使整機(jī)性能得以改善。與機(jī)械式挖掘機(jī)相比，其挖掘力提高到 2～ 3 倍，整機(jī)質(zhì)量為 25 噸， 最大卸載高度約為 ，最大挖掘深度 ，最大挖掘半徑約為 ， 從中可 以看出整機(jī)作業(yè)能力有了很大的改進(jìn)，不僅挖掘力大，且機(jī)器重量輕，傳動(dòng)平穩(wěn)，作業(yè)效率高，結(jié)構(gòu)緊湊。 關(guān)鍵詞： 液壓挖掘機(jī) 工作 裝置 液壓系統(tǒng) 運(yùn)動(dòng) 仿真 ABSTRACT Construction machinery hydraulic excavator is one of the most important products which has high technical content. Working mechanism is the main equipment of hydraulic excavator, each joint point and the design of the concrete structure are important factors to decide the working mechanism of the performance level, determining the working performance of hydraulic excavator, which influence the use performance is good or bad, so the research of hydraulic excavator is very necessary. The main characteristics of hydraulic excavator is as follow: It has a stepless speed regulation and wide speed range, it can obtain stable low speed, when action quickly, the hydraulic parts produce a small inertia and good acceleration performance, and it can be used for high speed reversal, produce smooth transmission, simple structure, can absorb the impact and vibration, laborsaving operation, it is easy to control automatically and realize the standardization, seriation and generalization. The topic of the design is the design of WY100 hydraulic crawler excavator overall and the working device and motion simulation for the working device. Compared with the other types of excavator this type of excavator have good performance so used widely, it can reduce ground pressure by widening, lengthening and floating crawler for soft ground or marshes. The main tasks of the design are: Types and the development of the excavator, the overall design of hydraulic excavator, the working resistance calculation of the hydraulic excavator, the design of the working device ,stress analysis and strength check calculation of the working device, the hydraulic system design of the excavator working device , the motion simulation of excavator working device The main parameter of the design is bucket capacity , it belongs to the small and mediumsized hydraulic excavator, the main tasks are the design and motion simulation of working device of excavator. The working device is the equipment that pletes the task of mining directly, all the design of the work device ponents are designed in detail including the design of the boom, stick and bucket and a driving device. This design used the crawler walking device to meet the requirements of the excavator. The upper part of the excavator is a full rotation swivel table so it can work in a greater scope. Because of the use of hydraulic drive control and make the machine performance can be improved. Compared with the mechanical excavators, the mining capacity increased to 2 ~ 3 times, the quality of the machine is 25 tons, the maximum discharge height is about , the maximum digging depth is , maximum digging radius of about , can be seen from the operation ability has been greatly improved, not only the mining capacity but the light weight, smooth transmission, high efficiency and pact structure. Keywords: hydraulic excavator working device hydraulic system motion simulation 目錄 第 1 章 緒論 1 況 1 挖掘機(jī)的分類 2 挖掘機(jī)的特點(diǎn)、類型 3 設(shè)計(jì)題目簡(jiǎn)介 4 第 2 章 總體設(shè)計(jì) 8 總體設(shè)計(jì)內(nèi)容及 原則 8 選擇確定總體參數(shù) 8 第 3 章 挖掘機(jī)工作阻力 15 工作液壓缸的理論挖掘力 15 整機(jī)挖掘力