發(fā)布時(shí)間：2018-02-22 04:19

  本文關(guān)鍵詞： 裝載機(jī) 液壓傳動(dòng) 組合傳動(dòng) 系統(tǒng)設(shè)計(jì) 建模仿真　出處：《長(zhǎng)安大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：隨著中國(guó)經(jīng)濟(jì)的快速發(fā)展、基礎(chǔ)設(shè)施的不斷完善，使得中國(guó)成為工程機(jī)械最大的市場(chǎng)之一。裝載機(jī)是工程機(jī)械的主要機(jī)種之一，可以完成鏟掘、裝卸、運(yùn)輸?shù)榷喾N工況作業(yè)，廣泛應(yīng)用于公路、鐵路、水電、建筑、港口、礦山等建設(shè)工程行業(yè)。傳動(dòng)系統(tǒng)是裝載機(jī)的重要組成系統(tǒng)之一，決定著整機(jī)的性能。 液壓機(jī)械組合傳動(dòng)裝載機(jī)克服了傳統(tǒng)的液力傳動(dòng)系統(tǒng)高效區(qū)范圍窄、整機(jī)性能低、傳動(dòng)準(zhǔn)確性和剛度不夠高、可控性差、布置形式單一等缺點(diǎn)并繼承了液力傳動(dòng)系統(tǒng)的大多數(shù)優(yōu)點(diǎn)。盡管液壓機(jī)械組合傳動(dòng)技術(shù)日趨成熟并早已投入生產(chǎn)使用，但是國(guó)內(nèi)液壓和電子技術(shù)比較落后，液壓機(jī)械組合傳動(dòng)在裝載機(jī)上的應(yīng)用研究較少。本文以液壓機(jī)械組合傳動(dòng)技術(shù)在裝載機(jī)上的應(yīng)用為研究?jī)?nèi)容，對(duì)液壓機(jī)械組合傳動(dòng)型裝載機(jī)進(jìn)行了較為全面的研究。 在查閱大量國(guó)內(nèi)外相關(guān)專業(yè)資料及文獻(xiàn)的基礎(chǔ)上，本文概述了國(guó)內(nèi)外液壓機(jī)械組合傳動(dòng)型裝載機(jī)的研究現(xiàn)狀及發(fā)展趨勢(shì)，介紹了液壓機(jī)械組合傳動(dòng)與液力機(jī)械傳動(dòng)相比所具有的優(yōu)勢(shì)。 闡述了液壓機(jī)械組合傳動(dòng)方案的幾種形式，并舉例簡(jiǎn)單介紹了液壓機(jī)械組合傳動(dòng)系統(tǒng)的工作原理，并對(duì)液壓機(jī)械組合傳動(dòng)裝置的特性及與發(fā)動(dòng)機(jī)的匹配控制進(jìn)行了分析。 在國(guó)內(nèi)常見的ZL50裝載機(jī)基本參數(shù)的基礎(chǔ)上，根據(jù)前面的分析對(duì)其液壓機(jī)械組合傳動(dòng)系統(tǒng)進(jìn)行設(shè)計(jì)計(jì)算，確定液壓泵、液壓馬達(dá)等的選型，并在此基礎(chǔ)上建立了各個(gè)環(huán)節(jié)的數(shù)學(xué)模型。 根據(jù)所設(shè)計(jì)的液壓機(jī)械組合傳動(dòng)系統(tǒng)各參數(shù)和已建立的數(shù)學(xué)模型，分別利用AMESim軟件進(jìn)行變量泵、變量馬達(dá)和整個(gè)液壓機(jī)械組合傳動(dòng)系統(tǒng)的仿真，并進(jìn)行仿真分析。結(jié)果表明所設(shè)計(jì)的液壓機(jī)械組合傳動(dòng)系統(tǒng)是正確的，完全可以應(yīng)用于裝載機(jī)的生產(chǎn)中。另外，在設(shè)計(jì)整個(gè)系統(tǒng)時(shí)，，應(yīng)布局合理，減少管道長(zhǎng)度，這樣能使系統(tǒng)獲得較好的動(dòng)態(tài)響應(yīng)。
[Abstract]:With the rapid development of Chinese economy, the improvement of infrastructure, the Chinese market has become one of the biggest construction machinery. The loader is one of the main types of engineering machinery, can complete digging, loading and unloading, transportation and other operation conditions, widely used in highway, railway, hydropower, construction, ports, mines and other construction projects industry. Drive system is an important component of system of loader, determines the performance of the whole machine.
To overcome the traditional high efficiency hydraulic transmission system of a narrow range of hydraulic machinery driving loader, the performance is low, the transmission accuracy and stiffness is not high enough, poor controllability, disadvantages of layout of single and inherits most of the advantages of the hydraulic drive system. Although the combination of hydraulic machinery transmission technology matures and has been put into production and use, but domestic hydraulic and electronic technology is relatively backward, hydraulic mechanical transmission in the application of combined loading machine less. Based on the hydraulic mechanical transmission technology in the application of combination loader as the research content, the combination of hydraulic mechanical drive type loader is studied.
On the basis of consulting a large number of domestic and foreign related professional materials and documents, this paper summarizes the research status and development trend of hydraulic mechanical combined transmission loaders at home and abroad, and introduces the advantages of hydraulic mechanical combined transmission compared with hydraulic mechanical transmission.
This paper expounds several forms of the combined transmission scheme of hydraulic machinery, and briefly introduces the working principle of the hydraulic mechanical combined transmission system with examples, and analyzes the characteristics of the hydraulic mechanical combined transmission device and the matching control with the engine.
On the basis of the basic parameters of ZL50 loaders commonly used in China, based on the above analysis, the hydraulic mechanical combined transmission system is designed and calculated, and the selection of hydraulic pumps, hydraulic motors and so on is determined. Based on that, a mathematical model of all links is established.
According to the parameters of the hydraulic mechanical transmission system of the combination of design and has established a mathematical model of the variable pump, respectively using AMESim software, simulation of variable motor and the hydraulic mechanical driving system, and simulation analysis is carried out. The results show that the hydraulic machinery combination drive system design is correct, can be applied to the loader the production. In addition, in the design of the whole system, should rationally, reduce the length of the pipeline, which makes the system have better dynamic response.

【學(xué)位授予單位】：長(zhǎng)安大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TH243

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