【摘要】：液力變速器作為裝載機(jī)的核心傳動(dòng)部件,其動(dòng)力性能直接關(guān)系到裝載機(jī)的使用性能、動(dòng)力特性、工作效率等,其中液力變速器的變矩器與發(fā)動(dòng)機(jī)的功率匹配及優(yōu)化是重要環(huán)節(jié),通過功率匹配可以優(yōu)化裝載機(jī)的啟動(dòng)性能、換擋性能、燃油經(jīng)濟(jì)性。本文對(duì)自行開發(fā)的SD50裝載機(jī)變速器進(jìn)行了功率匹配與優(yōu)化,并設(shè)計(jì)了檢驗(yàn)變速器性能的試驗(yàn)平臺(tái)。 介紹了SD50液力變速器的結(jié)構(gòu)特性與工作原理,分析液力變矩器與發(fā)動(dòng)機(jī)的特性參數(shù)與動(dòng)力特性的關(guān)系,確定變矩器與發(fā)動(dòng)機(jī)功率匹配的基本原則：即在保證動(dòng)力性能優(yōu)化的前提下兼顧燃油經(jīng)濟(jì)性。制定了匹配方法與計(jì)算步驟,最后根據(jù)SD50變速器的參數(shù)選擇了康明斯6CT8.3-C215發(fā)動(dòng)機(jī),YJ355L單級(jí)單相變矩器和YJSW315-6雙渦輪單級(jí)雙相變矩器進(jìn)行匹配。 根據(jù)發(fā)動(dòng)機(jī)與液力變矩器的原始特性數(shù)據(jù)及匹配方法,利用Matlab工具擬合出發(fā)動(dòng)機(jī)的輸出特性曲線、變矩器的輸入特性曲線及共同工作曲線,對(duì)兩種變矩器進(jìn)行匹配,并對(duì)其匹配后的輸出特性進(jìn)行對(duì)比分析,得出結(jié)論：YJSW315-6雙渦輪單級(jí)雙相變矩器更符合裝載機(jī)的工況需求。在匹配工作的基礎(chǔ)上,以動(dòng)力性能作為目標(biāo)對(duì)液力變矩器進(jìn)行優(yōu)化設(shè)計(jì),運(yùn)用Matlab工具箱進(jìn)行優(yōu)化后,對(duì)優(yōu)化后的動(dòng)力性能進(jìn)行評(píng)價(jià),證明優(yōu)化工作提高了變速器動(dòng)力性能,可以更好發(fā)揮發(fā)動(dòng)機(jī)的動(dòng)力。 設(shè)計(jì)了SD50變速器性能試驗(yàn)所需的試驗(yàn)平臺(tái),選擇開式試驗(yàn)臺(tái)方案,設(shè)計(jì)主體結(jié)構(gòu),選擇主要測量儀器,并根據(jù)相關(guān)國家標(biāo)準(zhǔn)及行業(yè)規(guī)范,制定了具體的試驗(yàn)方案與試驗(yàn)方法。
[Abstract]:As the core transmission component of the loader, the dynamic performance of the hydraulic transmission is directly related to the performance, dynamic characteristics and working efficiency of the loader. Among them, the torque converter of the hydraulic transmission and the power matching and optimization of the engine are important links. The starting performance, shift performance and fuel economy of the loader can be optimized by power matching. In this paper, the power matching and optimization of the self-developed SD50 loader transmission are carried out, and a test platform for testing the transmission performance is designed. This paper introduces the structural characteristics and working principle of SD50 hydraulic transmission, and analyzes the relationship between the characteristic parameters and dynamic characteristics of hydraulic torque converter and engine. The basic principle of power matching between torque converter and engine is determined, that is, fuel economy is taken into account on the premise of ensuring the optimization of dynamic performance. The matching method and calculation steps are worked out. Finally, Cummins 6CT8.3-C215 engine, YJ355L single phase torque converter and YJSW315-6 double turbine single phase torque converter are selected according to the parameters of SD50 transmission. According to the original characteristic data and matching method of engine and hydraulic torque converter, the output characteristic curve of engine, the input characteristic curve and common working curve of torque converter are fitted by Matlab tool, and the two kinds of torque converter are matched. The matching output characteristics are compared and analyzed, and it is concluded that the YJSW315-6 double turbine single stage dual phase torque converter is more in line with the working conditions of the loader. On the basis of matching work, the hydraulic torque converter is optimized with the goal of dynamic performance. After optimizing the hydraulic torque converter with Matlab toolbox, the optimized dynamic performance is evaluated, which proves that the optimization work improves the dynamic performance of the transmission. It can give full play to the power of the engine. The test platform for SD50 transmission performance test is designed, the open test-bed scheme is selected, the main structure is designed, and the main measuring instruments are selected. According to the relevant national standards and industry specifications, the specific test scheme and test method are worked out.
【學(xué)位授予單位】：山東大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類號(hào)】：TH243

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 宗存元,程鑫;工程機(jī)械液力變矩器與發(fā)動(dòng)機(jī)的功率匹配分析[J];安徽電子信息職業(yè)技術(shù)學(xué)院學(xué)報(bào);2005年02期

2 葛楠;彭光正;余麟;劉昊;;基于直流調(diào)速技術(shù)的變速箱加載試驗(yàn)臺(tái)[J];北京理工大學(xué)學(xué)報(bào);2008年01期

3 閻清東，項(xiàng)昌樂，馮永存;汽車變速器性能試驗(yàn)臺(tái)自動(dòng)控制[J];Journal of Beijing Institute of Technology(English Edition);1998年02期

4 湯泓淵;;50輪式裝載機(jī)用柴油機(jī)的配套設(shè)計(jì)[J];柴油機(jī)設(shè)計(jì)與制造;2009年01期

5 羅虹;孫新龍;李興泉;李英強(qiáng);王騰騰;;CVT轎車液力變矩器的整車匹配優(yōu)化設(shè)計(jì)[J];重慶大學(xué)學(xué)報(bào);2011年11期

6 陳寧,趙丁選,張志義,楊迪;工程車輛換擋品質(zhì)控制的研究[J];工程機(jī)械;2005年01期

7 干茂華;王忠利;閆曉瑩;;淺議我國工程機(jī)械定軸式變速器的應(yīng)用與發(fā)展[J];工程機(jī)械;2008年09期

8 李淑萍;;電液換擋變速器電液換擋控制系統(tǒng)的開發(fā)[J];工程機(jī)械;2008年10期

9 韓清林;吳慶玲;;ZL50裝載機(jī)發(fā)動(dòng)機(jī)與液力變矩器的匹配分析[J];工程機(jī)械文摘;2011年03期

10 劉良臣;ZL50D輪式裝載機(jī)[J];工程機(jī)械與維修;1999年09期

相關(guān)碩士學(xué)位論文 前9條

1 黃樂;DANA32000型變速器的結(jié)構(gòu)強(qiáng)度分析與動(dòng)態(tài)特性研究[D];鄭州大學(xué);2011年

2 魯成瑞;基于模糊可靠性的新型行星變速箱多目標(biāo)優(yōu)化設(shè)計(jì)研究[D];山東大學(xué);2011年

3 胡建國;ZL50裝載機(jī)自動(dòng)變速控制系統(tǒng)研究[D];吉林大學(xué);2005年

4 陳淑清;ZL80裝載機(jī)發(fā)動(dòng)機(jī)與液力變矩器的匹配優(yōu)化設(shè)計(jì)[D];吉林大學(xué);2008年

5 羅麗華;液力變速箱試驗(yàn)系統(tǒng)的開發(fā)研究[D];中國石油大學(xué);2008年

6 唐蛟;W375型液力變矩器匹配及優(yōu)化[D];吉林大學(xué);2009年

7 程文濤;LG50裝載機(jī)自動(dòng)變速箱的開發(fā)[D];山東大學(xué);2009年

8 蔡瀟;裝載機(jī)變速箱仿真設(shè)計(jì)[D];長安大學(xué);2007年

9 楊波波;裝載機(jī)車載自動(dòng)稱重儀系統(tǒng)研究[D];長安大學(xué);2010年

，

本文編號(hào)：2486688