天堂国产午夜亚洲专区-少妇人妻综合久久蜜臀-国产成人户外露出视频在线-国产91传媒一区二区三区

Wk-10挖掘機(jī)回轉(zhuǎn)支承的失效分析及力學(xué)性能研究

發(fā)布時(shí)間:2018-07-24 22:09
【摘要】:本文是以鞍鋼集團(tuán)檢修協(xié)力公司使用中的wk-10挖掘機(jī)為研究對(duì)象,對(duì)挖掘機(jī)回轉(zhuǎn)支承裝置進(jìn)行失效分析及力學(xué)性能研究。礦用挖掘機(jī)在工作的過(guò)程中,回轉(zhuǎn)支承裝置起到至關(guān)重要的作用,實(shí)現(xiàn)回轉(zhuǎn)支承平臺(tái)承受載荷和旋轉(zhuǎn)的功效;剞D(zhuǎn)支承裝置在采掘的過(guò)程中受力復(fù)雜,,因此其可靠性對(duì)整機(jī)的性能有重要的影響。 從回轉(zhuǎn)支承的應(yīng)用角度出發(fā),對(duì)實(shí)際工作中的回轉(zhuǎn)支承進(jìn)行失效分析,重點(diǎn)分析了其中關(guān)鍵的零件——滾子和軌道,包括滾子常見(jiàn)的失效形式,提出合理的防護(hù)措施和重要的改進(jìn)方法;根據(jù)wk-10電鏟實(shí)際工作情況,對(duì)其回轉(zhuǎn)支承的結(jié)構(gòu)特點(diǎn)進(jìn)行分析,確定回轉(zhuǎn)支承裝置承受最大載荷值時(shí)的典型工況,在此基礎(chǔ)上研究回轉(zhuǎn)支承裝置的整體受力,求解回轉(zhuǎn)支承承受電鏟動(dòng)臂、斗柄、鏟斗、三角架、配重、物料等時(shí)的載荷值,并提供回轉(zhuǎn)支承裝置摩擦力矩的計(jì)算依據(jù)。 在現(xiàn)有wk-10電鏟回轉(zhuǎn)支承二維圖紙的基礎(chǔ)上,進(jìn)行三維模型建立,完成回轉(zhuǎn)支承裝置裝配。將回轉(zhuǎn)支承的滾子-軌道模型導(dǎo)入有限元分析軟件Ansys,利用Ansys workbench模塊進(jìn)行回轉(zhuǎn)支承滾子-軌道應(yīng)力和變形的分析,得到各個(gè)零部件受工作載荷后的應(yīng)力云圖和位移云圖,找出應(yīng)力和位移的最大值,同時(shí)得出零件的邊緣效應(yīng)對(duì)零件的影響。 對(duì)回轉(zhuǎn)支承的滾子-軌道進(jìn)行結(jié)構(gòu)的改進(jìn),為減小或避免回轉(zhuǎn)支承運(yùn)動(dòng)時(shí)圓柱滾子與軌道之間產(chǎn)生的速度差,將滾動(dòng)體改為圓錐形,與其配合的軌道接觸面也改為錐形表面。再對(duì)圓錐滾子-軌道進(jìn)行應(yīng)力和變形分析,求解其應(yīng)力云圖、位移云圖,并將該結(jié)果與改進(jìn)前的支承進(jìn)行對(duì)比,說(shuō)明改進(jìn)的效果和意義。
[Abstract]:This paper takes the wk-10 excavator in use in Angang Group maintenance Cooperation Company as the research object, carries on the failure analysis and the mechanical performance research to the excavator rotary bearing device. The rotary support device plays an important role in the working process of the mining excavator and realizes the function of bearing the load and rotation of the rotary support platform. The reliability of rotary bearing device has an important effect on the performance of the whole machine. From the point of view of the application of rotary bearing, the failure analysis of rotary bearing in practice is carried out, and the key parts, roller and track, are emphatically analyzed, including the common failure forms of rollers. The reasonable protective measures and important improvement methods are put forward, according to the actual working conditions of the wk-10 electric shovel, the structural characteristics of the slewing support are analyzed, and the typical working conditions of the slewing support device when bearing the maximum load value are determined. On this basis, the integral force of the slewing support device is studied, and the load values of the slewing bearing the shovel arm, bucket handle, bucket, tripod, counterweight, material, etc., are solved, and the calculation basis of friction moment of the rotary support device is provided. On the basis of the existing 2D drawing of wk-10 rotary support, the 3D model is established to complete the assembly of the rotary support device. The roller track model of rotary bearing is introduced into the finite element analysis software Ansys, and the stress cloud diagram and displacement cloud diagram of each component are obtained by using Ansys workbench module to analyze the stress and deformation of roller track of rotary bearing. Find out the maximum stress and displacement, and get the influence of the edge effect on the part. In order to reduce or avoid the velocity difference between the cylindrical roller and the track, the rolling body is changed to a conical shape, and the track contact surface is changed to a conical surface in order to reduce or avoid the velocity difference between the cylindrical roller and the track. Then the stress and deformation of the tapered roller track are analyzed and the stress cloud diagram and displacement cloud diagram are solved. The results are compared with the support before the improvement to illustrate the effect and significance of the improvement.
【學(xué)位授予單位】:遼寧科技大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2013
【分類(lèi)號(hào)】:TU621

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 魏延剛,王忠敏,曲榮君;修形圓柱滾子軸承滾子凸度量設(shè)計(jì)[J];大連鐵道學(xué)院學(xué)報(bào);2004年03期

2 何西泠;;回轉(zhuǎn)支承裝置的摩擦阻力矩[J];中國(guó)工程機(jī)械學(xué)報(bào);2006年02期

3 張良兵;回轉(zhuǎn)支承的開(kāi)發(fā)與使用[J];港口裝卸;2001年06期

4 李占春;WK-10型挖掘機(jī)[J];工程機(jī)械;1985年08期

5 張國(guó)龍;回轉(zhuǎn)支承的選型分析計(jì)算[J];建筑機(jī)械化;2000年02期

6 侯寧;合理選用回轉(zhuǎn)支承[J];建筑機(jī)械;1996年08期

7 王國(guó)彪;國(guó)外大型礦用挖掘機(jī)的現(xiàn)狀與發(fā)展[J];礦山機(jī)械;1999年11期

8 王新中;國(guó)內(nèi)外礦用挖掘機(jī)發(fā)展?fàn)顩r[J];礦山機(jī)械;2004年09期

9 林嫣紅;孔德文;馮亮;李磊;;礦用挖掘機(jī)回轉(zhuǎn)支承滾子-滾道接觸分析[J];礦山機(jī)械;2011年09期

10 劉瑜;李?lèi)?ài)軍;周甲偉;霍妍妍;;礦山機(jī)械的摩擦學(xué)問(wèn)題研究[J];煤礦機(jī)械;2008年07期



本文編號(hào):2142811

資料下載
論文發(fā)表

本文鏈接:http://sikaile.net/kejilunwen/sgjslw/2142811.html


Copyright(c)文論論文網(wǎng)All Rights Reserved | 網(wǎng)站地圖 |

版權(quán)申明:資料由用戶(hù)b8d6f***提供,本站僅收錄摘要或目錄,作者需要?jiǎng)h除請(qǐng)E-mail郵箱bigeng88@qq.com
久久精品国产亚洲av麻豆| 国产精品成人免费精品自在线观看| 欧美欧美欧美欧美一区| 精品亚洲一区二区三区w竹菊| 国产一区欧美一区日韩一区| 91香蕉国产观看免费人人| 日本免费一本一二区三区| 人妻露脸一区二区三区| 色一情一伦一区二区三| 欧美在线视频一区观看| 婷婷开心五月亚洲综合| 99精品国产自在现线观看| 亚洲精品偷拍一区二区三区| 在线观看国产午夜福利| 丝袜诱惑一区二区三区| 尹人大香蕉中文在线播放| 国产成人在线一区二区三区| 丝袜视频日本成人午夜视频| 沐浴偷拍一区二区视频| 日本加勒比系列在线播放| 欧美野外在线刺激在线观看| 夜夜躁狠狠躁日日躁视频黑人| 清纯少妇被捅到高潮免费观看| 国产亚洲不卡一区二区| 欧美一级黄片免费视频| 在线免费视频你懂的观看| 欧美精品在线播放一区二区| 国产精品伦一区二区三区在线| 少妇人妻中出中文字幕| 成人精品日韩专区在线观看| 成人区人妻精品一区二区三区| 青青操成人免费在线视频| 国产一区二区三中文字幕| 日韩欧美国产精品中文字幕| 欧美日韩国产精品第五页| 欧美成人一区二区三区在线| 欧美乱码精品一区二区三| 伊人欧美一区二区三区| 成人三级视频在线观看不卡| 精品丝袜一区二区三区性色| 日韩在线中文字幕不卡|