本文選題：裝載機 + 創(chuàng)新�。� 參考：《大連理工大學(xué)》2012年碩士論文

【摘要】：鏟土運輸機械包括推土機、裝載機、鏟運機、平地機和運土車等幾個重要的機種,是工程機械中范圍較大用途較廣的一個大類。在工程建筑、公共交通、電廠、碼頭、礦山等現(xiàn)場廣泛使用的機械就是裝載機,主要原因是在滿足作業(yè)效率情況下,相對來說裝載機的性價比比較高。它可以對煤炭、巖石、硬土等物料進行裝取、搬運、卸料和平整散裝物料等工作。我公司是我國最早生產(chǎn)輪式裝載機的企業(yè)之一,公司決定對現(xiàn)有的機械產(chǎn)品進行創(chuàng)新設(shè)計,力求在保證產(chǎn)品質(zhì)量的同時,在產(chǎn)品的外觀,結(jié)構(gòu)上有新的突破。針對企業(yè)產(chǎn)品升級開發(fā)的需要,對裝載機工作裝置機構(gòu)進行創(chuàng)新方法研究。 本論文以獲得裝載機工作裝置機構(gòu)新型可行方案為目的,首先介紹了裝載機的發(fā)展及機構(gòu)方面的研究,提出本論文的研究方法及步驟。然后介紹了本論文所采用的結(jié)構(gòu)推理方案創(chuàng)新設(shè)計方法及機構(gòu)評價方法。對現(xiàn)有裝載機工作裝置機構(gòu)進行了創(chuàng)新設(shè)計,在充分研究機構(gòu)綜合理論的基礎(chǔ)上,將機構(gòu)綜合問題轉(zhuǎn)化為一般閉鏈機構(gòu)綜合問題處理,由現(xiàn)有機構(gòu)運動鏈一般化得到一個9桿11副運動鏈；接著運用兩自由度運動鏈型綜合得到了36種不同結(jié)構(gòu)類型的9桿11副運動鏈；根據(jù)設(shè)計約束評價篩選出滿足約束條件的10個再生運動鏈；將再生運動鏈具體化為對應(yīng)的機構(gòu),獲得9個新型方案解。再運用運動鏈拓?fù)涮匦跃仃噷Φ玫降男滦头桨高M行機構(gòu)的性能評價,得出評價結(jié)果,真實的反映了新型方案的優(yōu)劣特征。 此機構(gòu)創(chuàng)新方法的研究使本企業(yè)對其它產(chǎn)品機構(gòu)方案的創(chuàng)新有規(guī)可循,且易于應(yīng)用和掌握,能方便地獲得可供選擇的多個方案,還能出現(xiàn)許多不同于原始機構(gòu)的結(jié)構(gòu)方案,再通過運動鏈拓?fù)涮匦跃仃嚨姆治龊驮u價,對開發(fā)出新的機械系統(tǒng)提供了有力的工具。實踐證明,這是一種機構(gòu)方案創(chuàng)新設(shè)計的有效方法,為下一步的機構(gòu)具體部件設(shè)計奠定了良好基礎(chǔ)。
[Abstract]:Shovel transportation machinery includes bulldozer, loader, scraper, grader and earth conveyer and so on. It is one of the most widely used engineering machinery. Loaders are widely used in engineering buildings, public transportation, power plants, wharves, mines and so on. The main reason is that the loaders have a relatively high performance-to-price ratio under the condition of satisfying the operational efficiency. It can be used for loading, handling, unloading and leveling bulk materials such as coal, rock and hard soil. Our company is one of the earliest enterprises that produce wheel loader in our country, the company decides to carry on the innovation design to the existing mechanical product, strives to guarantee the product quality at the same time, in the product appearance, the structure has the new breakthrough. According to the need of product upgrading and development of enterprises, the innovative method of loader working mechanism is studied. In order to obtain a new feasible scheme of loader working mechanism, this paper firstly introduces the development and mechanism of loader, and puts forward the research methods and steps of this paper. Then it introduces the innovative design method and mechanism evaluation method of the structure reasoning scheme adopted in this paper. On the basis of fully studying the mechanism synthesis theory, the mechanism synthesis problem is transformed into a general closed-chain mechanism synthesis problem. A kinematic chain of 9 rods and 11 pairs is obtained by generalizing the kinematic chain of the existing mechanism, and then 36 different types of kinematic chains of 9 rods and 11 pairs of motion chains are obtained by synthesizing two degrees of freedom kinematic chains. According to the design constraint evaluation, 10 reproducing motion chains satisfying the constraint conditions were selected, and 9 new scheme solutions were obtained by translating the regenerative motion chains into corresponding mechanisms. Then the mechanism performance of the new scheme is evaluated by using the kinematic chain topological characteristic matrix, and the evaluation results are obtained, which truly reflect the advantages and disadvantages of the new scheme. The research of the innovation method of this organization makes the innovation of other product organization schemes rule-based, and easy to use and master, can easily obtain a number of alternative options, but also can appear many different from the original structure of the organization. Through the analysis and evaluation of the topological characteristic matrix of the kinematic chain, a powerful tool is provided for the development of a new mechanical system. It is proved by practice that this method is an effective method for the innovative design of the mechanism scheme, and it lays a good foundation for the design of the specific components of the mechanism in the next step.
【學(xué)位授予單位】：大連理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2012
【分類號】：TH243

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