本文選題：挖掘機(jī) + 傾斜旋轉(zhuǎn)器��； 參考：《太原科技大學(xué)》2017年碩士論文

【摘要】：針對(duì)普通挖掘機(jī)加裝傾斜旋轉(zhuǎn)器后,鏟斗等屬具不僅具有工作裝置平面內(nèi)的運(yùn)動(dòng),而且還有偏離平面內(nèi)的運(yùn)動(dòng),從而對(duì)工作裝置產(chǎn)生附加彎矩和扭矩以及基于工作裝置平面內(nèi)運(yùn)動(dòng)的傳統(tǒng)設(shè)計(jì)方法不再適用的問(wèn)題,本文從挖掘機(jī)工作裝置數(shù)學(xué)建模,工作裝置的空間力學(xué)分析,整機(jī)理論挖掘力的計(jì)算到工作裝置有限元分析,進(jìn)行了系統(tǒng)而嚴(yán)謹(jǐn)?shù)挠?jì)算和分析,以獲得一套兼容加裝傾斜旋轉(zhuǎn)器和未加裝傾斜旋轉(zhuǎn)器挖掘機(jī)工作裝置的設(shè)計(jì)分析方法。(1)挖掘機(jī)工作裝置數(shù)學(xué)建模部分,對(duì)原有的連桿坐標(biāo)法進(jìn)行了優(yōu)化,提出了連桿的齊次坐標(biāo)變換法,用此方法對(duì)加裝傾斜旋轉(zhuǎn)器挖掘機(jī)工作裝置建模,并用所建立的數(shù)學(xué)模型繪制了挖掘包絡(luò)圖。(2)工作裝置的空間力學(xué)分析部分,根據(jù)理論力學(xué)空間力系平衡和矩陣?yán)碚摰倪\(yùn)算法則,采用劃分桿組法,建立安裝傾斜旋轉(zhuǎn)器后的挖掘機(jī)工作裝置力學(xué)模型,通過(guò)理論推導(dǎo),得到一種能適用于空間受力分析的計(jì)算方法和計(jì)算流程,以解決加裝傾斜旋轉(zhuǎn)器挖掘機(jī)工作裝置中不同部件受力分析問(wèn)題。(3)挖掘力的計(jì)算部分,考慮了加裝傾斜旋轉(zhuǎn)器后整機(jī)挖掘力的限制條件的變化,對(duì)整機(jī)理論挖掘力的計(jì)算加入了傾斜和旋轉(zhuǎn)閉鎖壓力的限制條件。(4)工作裝置有限元分析部分,通過(guò)前三部分的準(zhǔn)備,建立起了求出任意工況下的工作裝置邊界載荷的程序,然后考慮了橫向載荷和偏載不同方向的載荷組合對(duì)挖掘機(jī)工作裝置應(yīng)力的影響,對(duì)三種工作模式下的挖掘機(jī)工作裝置進(jìn)行了三個(gè)典型危險(xiǎn)工況下的有限元分析。通過(guò)對(duì)比未加裝傾斜旋轉(zhuǎn)器的挖掘機(jī)工作裝置,加裝傾斜旋轉(zhuǎn)器的挖掘機(jī)工作裝置但是不考慮傾斜旋轉(zhuǎn)器的擺動(dòng)和旋轉(zhuǎn),加裝傾斜旋轉(zhuǎn)器的挖掘機(jī)工作裝置考慮傾斜旋轉(zhuǎn)器的擺動(dòng)和旋轉(zhuǎn)這三種作業(yè)模式下危險(xiǎn)工況的應(yīng)力分析結(jié)果,得出第三種作業(yè)模式下的應(yīng)力最大的結(jié)論。本文的研究成果可以為加裝傾斜旋轉(zhuǎn)器的挖掘機(jī)工作裝置的設(shè)計(jì)提供理論指導(dǎo),還可以對(duì)已經(jīng)設(shè)計(jì)好的挖掘機(jī)在加裝傾斜旋轉(zhuǎn)器后對(duì)其的挖掘性能進(jìn)行評(píng)估,根據(jù)應(yīng)力分析結(jié)果可以給用戶提供加裝傾斜旋轉(zhuǎn)器后挖掘力的合理范圍,以防結(jié)構(gòu)應(yīng)力過(guò)大而使結(jié)構(gòu)提前破壞。
[Abstract]:In view of the general excavator equipped with tilting rotator, the bucket has not only the movement in the plane of the working device, but also the movement of the deviation from the plane. Therefore, it is no longer suitable for the traditional design methods based on the in-plane motion of the working device to produce additional bending moment and torque of the working device. This paper analyzes the spatial mechanics of the working device from the mathematical modeling of the working device of the excavator, and the analysis of the spatial mechanics of the working device. The calculation of the excavating force of the whole machine theory to the finite element analysis of the working device has carried out systematic and rigorous calculation and analysis. In order to obtain a set of design and analysis method for the working device of the excavator compatible with and without the tilting rotator, the mathematical modeling part of the working device of the excavator is obtained, and the original coordinate method of the connecting rod is optimized. This paper presents a homogeneous coordinate transformation method for connecting rod, which is used to model the working device of excavator equipped with tilting rotator, and draws the space mechanics analysis part of the excavating envelop map by using the established mathematical model. According to the balance of spatial force system of theoretical mechanics and the arithmetic of matrix theory, the mechanical model of excavator working device after installation of tilting rotator is established by using the method of dividing rod group. A calculation method and flow chart suitable for spatial force analysis are obtained to solve the problem of force analysis of different parts in the working device of tilting rotary excavator. Considering the change of the limit condition of the excavating force of the whole machine after the installation of the tilting rotator, the finite element analysis part of the tilting and rotating locking pressure is added to the calculation of the theoretical excavating force of the whole machine, and through the preparation of the first three parts, The program of calculating the boundary load of the working device under any working condition is established, and then the influence of the combination of transverse load and eccentric load on the stress of the working device of the excavator is considered. The finite element analysis of excavator working device under three kinds of working modes is carried out under three typical dangerous working conditions. By comparing the working devices of excavators without tilting rotators, the working devices of excavators with tilting rotators are added, but the swing and rotation of tilting rotators are not considered. The working device of excavator equipped with tilting rotator considers the stress analysis results of dangerous working conditions in the three operation modes of tilting rotator and rotating, and draws the conclusion that the maximum stress is under the third operation mode. The research results in this paper can provide theoretical guidance for the design of the working device of excavator with tilting rotator, and can also evaluate the excavation performance of the excavator that has been designed after the installation of tilting rotator. According to the results of stress analysis, the reasonable range of excavation force after the installation of tilting rotator can be provided to the user, in case the structure stress is too large and the structure is destroyed in advance.
【學(xué)位授予單位】：太原科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TU621

【參考文獻(xiàn)】

中國(guó)期刊全文數(shù)據(jù)庫(kù) 前10條

1 施曉明;梁濱;;ET111型步履式液壓挖掘機(jī)[J];建筑機(jī)械;2015年11期

2 李宏寶;;工程機(jī)械市場(chǎng)的低迷與屬具市場(chǎng)需求的崛起[J];工程機(jī)械;2015年10期

3 武慧杰;楊建偉;張志強(qiáng);;挖掘機(jī)工作裝置運(yùn)動(dòng)和疲勞強(qiáng)度分析[J];建筑機(jī)械;2015年06期

4 徐必勇;左立生;陸鋒;吳江;;基于系統(tǒng)CAE技術(shù)的萬(wàn)向快接器仿真分析[J];建筑機(jī)械;2015年01期

5 李發(fā)宗;童水光;王相兵;程曉民;;船用挖掘機(jī)機(jī)械臂剛?cè)狁詈蟿?dòng)力學(xué)及特性研究[J];振動(dòng)與沖擊;2014年20期

6 張桂菊;肖才遠(yuǎn);譚青;袁文華;莫有瑜;;基于虛擬樣機(jī)技術(shù)挖掘機(jī)工作裝置動(dòng)力學(xué)分析及仿真[J];中南大學(xué)學(xué)報(bào)(自然科學(xué)版);2014年06期

7 尚紅;張國(guó)偉;胡衛(wèi)建;張濤;李斌;于賀春;賴俊彥;杜曉霞;賀專;王金萍;劉亢;許建華;張媛;;基于大型工程機(jī)械的城市地震災(zāi)害輔助營(yíng)救屬具技術(shù)初探[J];科學(xué)技術(shù)與工程;2014年12期

8 王旭;徐必勇;羅銘;孫文文;;新型拆除機(jī)器人工作裝置的運(yùn)動(dòng)學(xué)分析[J];建筑機(jī)械;2014年04期

9 鄧子龍;鈕科;;基于非線性接觸的液壓挖掘機(jī)工作裝置偏載工況下的性能分析[J];礦山機(jī)械;2013年12期

10 汪開(kāi)琴;徐必勇;羅銘;;挖掘機(jī)快換連接器產(chǎn)品技術(shù)發(fā)展綜述[J];建筑機(jī)械;2013年23期

中國(guó)重要會(huì)議論文全文數(shù)據(jù)庫(kù) 前2條

1 胡濤;;多體動(dòng)力學(xué)仿真關(guān)鍵技術(shù)研究[A];第十屆中國(guó)CAE工程分析技術(shù)年會(huì)會(huì)議論文集[C];2014年

2 馮豪;蔣紹軍;陳云峰;;基于ADAMS剛?cè)狁詈系耐诰驒C(jī)工作裝置仿真分析[A];第四屆中國(guó)CAE工程分析技術(shù)年會(huì)論文集[C];2008年

中國(guó)博士學(xué)位論文全文數(shù)據(jù)庫(kù) 前2條

1 杜文靖;液壓挖掘機(jī)工作裝置設(shè)計(jì)關(guān)鍵技術(shù)研究[D];吉林大學(xué);2007年

2 劉靜;挖掘機(jī)器人虛擬樣機(jī)建模技術(shù)及其應(yīng)用研究[D];浙江大學(xué);2005年

中國(guó)碩士學(xué)位論文全文數(shù)據(jù)庫(kù) 前10條

1 陳麗;挖泥船反鏟工作裝置和支撐裝置的結(jié)構(gòu)受力分析[D];武漢理工大學(xué);2014年

2 范東;雙臂救援機(jī)器人液壓系統(tǒng)設(shè)計(jì)與研究[D];浙江大學(xué);2014年

3 劉春麗;挖掘機(jī)快換裝置的結(jié)構(gòu)分析與優(yōu)化設(shè)計(jì)[D];東北石油大學(xué);2013年

4 魏武;液壓挖掘機(jī)工作裝置現(xiàn)代化設(shè)計(jì)與特殊工況下的動(dòng)載分析[D];華南理工大學(xué);2013年

5 蔡琴;大型船用機(jī)械數(shù)字化設(shè)計(jì)仿真及動(dòng)態(tài)性能研究[D];浙江大學(xué);2013年

6 于洪光;液壓挖掘機(jī)典型負(fù)載工況研究[D];浙江工業(yè)大學(xué);2012年

7 王毅;反鏟液壓挖掘機(jī)工作裝置剛?cè)狁詈线\(yùn)動(dòng)學(xué)仿真[D];長(zhǎng)安大學(xué);2012年

8 白瑞;液壓挖掘機(jī)工作裝置的有限元分析及疲勞壽命預(yù)測(cè)[D];太原理工大學(xué);2011年

9 任友良;液壓挖掘機(jī)工作裝置結(jié)構(gòu)性能分析[D];浙江大學(xué);2010年

10 戴洪光;基于ADAMS平臺(tái)的柔性體仿真理論的若干研究[D];合肥工業(yè)大學(xué);2008年

，

本文編號(hào)：2003227