本文關(guān)鍵詞： 電傳動(dòng) 礦用自卸車 發(fā)動(dòng)機(jī) 冷卻系統(tǒng) 散熱能力　出處：《長(zhǎng)安大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：電傳動(dòng)自卸車廣泛應(yīng)用于大型施工現(xiàn)場(chǎng)的露天礦物料運(yùn)輸。超大功率發(fā)動(dòng)機(jī)是該專用車輛的動(dòng)力來(lái)源,作為發(fā)動(dòng)機(jī)輔件的關(guān)鍵技術(shù)之一-冷卻系統(tǒng)的設(shè)計(jì)是電傳動(dòng)自卸車高效低成本運(yùn)行的強(qiáng)力保證。本文對(duì)170T電傳動(dòng)自卸車進(jìn)行了發(fā)動(dòng)機(jī)輔件總體設(shè)計(jì)和散熱關(guān)鍵技術(shù)研究。1)根據(jù)整車工況和性能要求,通過(guò)同類型產(chǎn)品類比分析和功率匹配計(jì)算兩種方法,完成170T電傳動(dòng)自卸車的發(fā)動(dòng)機(jī)選型,確定為康明斯Cummins K2000E,額定功率1492kW,額定轉(zhuǎn)速1900rpm,之后設(shè)計(jì)出發(fā)動(dòng)機(jī)輔件總體結(jié)構(gòu)方案。2)按照發(fā)動(dòng)機(jī)冷卻需求,匹配冷卻風(fēng)扇,計(jì)算高低溫冷卻水兩回路的散熱能力,設(shè)計(jì)出適用性高的銅質(zhì)管帶式高低溫并聯(lián)散熱器,部分解決170T電傳動(dòng)自卸車的散熱難題。3)基于裝機(jī)實(shí)驗(yàn),改進(jìn)進(jìn)氣管路聯(lián)接、冷卻風(fēng)扇罩和防熱風(fēng)回流3部分結(jié)構(gòu)設(shè)計(jì),提升發(fā)動(dòng)機(jī)輔件的可靠性和經(jīng)濟(jì)性。通過(guò)理論計(jì)算分析和實(shí)驗(yàn)結(jié)果驗(yàn)證,表明本文提出的發(fā)動(dòng)機(jī)輔件總體方案和散熱技術(shù)切實(shí)可行,保證了170T電傳動(dòng)自卸車動(dòng)力強(qiáng)勁、經(jīng)濟(jì)可靠。
[Abstract]:The electrically driven dump truck is widely used in the surface mine material transportation of large construction site. The super power engine is the power source of the special purpose vehicle. As one of the key technology of engine accessory, the design of cooling system is the strong guarantee of high efficiency and low cost operation of electric drive dump truck. In this paper, the overall design of engine accessory and the key technology of heat dissipation for 170T electric drive dump truck are carried out. According to the vehicle operating conditions and performance requirements, By means of analogical analysis and power matching calculation of the same type of products, the engine selection of 170T electric drive dump truck is completed. Determined as Cummins Cummins K2000E, rated power 1492kW, rated speed 1900rpm, and then designed the overall structural scheme of engine accessories .2According to the cooling requirements of the engine, matching the cooling fan, the heat dissipation capacity of the two circuits of high and low temperature cooling water was calculated. A high and low temperature parallel radiator with high and low temperature for copper tube with high applicability is designed, which partly solves the heat dissipation problem of 170T electric drive dump truck. Based on the installation experiment, it improves the connection of the intake pipe, the cooling fan cover and the anti-hot air backflow. The reliability and economy of the auxiliary parts of the engine are promoted. Through theoretical calculation, analysis and experimental results, it is proved that the overall scheme and heat dissipation technology of the engine accessories presented in this paper are feasible, and the 170T electric drive dump truck is guaranteed to be strong in power. The economy is reliable.
【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】：2015
【分類號(hào)】：TD634.9

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本文編號(hào)：1509853