【摘要】：齒輪傳動(dòng)是采煤機(jī)截割部動(dòng)力傳遞的關(guān)鍵組件,其性能決定整機(jī)的工作效率和使用壽命。由于薄煤層采煤機(jī)結(jié)構(gòu)緊湊、采煤空間狹小、工況惡劣、受到各種沖擊載荷,同時(shí)齒輪在工作中單、雙齒交替嚙合所引起嚙合剛度的變化以及扭矩軸和電機(jī)特性等影響,使截割部齒輪傳動(dòng)部分在工作過程中產(chǎn)生較大的沖擊載荷作用,對齒輪傳動(dòng)性能產(chǎn)生較大影響。對齒輪傳動(dòng)進(jìn)行動(dòng)態(tài)分析可以較為全面地反映齒輪在傳動(dòng)過程中的動(dòng)態(tài)特性。針對某型號(hào)雙電機(jī)驅(qū)動(dòng)薄煤層采煤機(jī)截割部齒輪傳動(dòng)進(jìn)行實(shí)體建模,在施加恒定扭矩條件進(jìn)行動(dòng)力學(xué)仿真分析,主要內(nèi)容如下:首先,利用UG建立了薄煤層采煤機(jī)截割部各部分齒輪和扭矩軸三維實(shí)體模型,并對其進(jìn)行虛擬裝配和干涉檢驗(yàn)。其次,針對制造和安裝誤差等原因,各齒輪之間的中心距會(huì)存在偏差,而中心距安裝偏差對傳動(dòng)機(jī)構(gòu)有一定的載荷波動(dòng)影響。著重對雙電機(jī)驅(qū)動(dòng)承受最大理論負(fù)載的三軸和四軸齒輪進(jìn)行研究,通過對三軸和四軸齒輪存在中心距偏差時(shí)進(jìn)行動(dòng)力學(xué)仿真分析,得到各齒輪受到載荷的波動(dòng)率與中心距偏差成先減小后增大的關(guān)系。中心距安裝誤差在041.0021.0175+-mm范圍內(nèi)波動(dòng)比較小,而偏差超過后波動(dòng)較大。再次,針對制造誤差等原因使得兩電機(jī)的輸出特性不完全一致這一現(xiàn)實(shí)進(jìn)行分析。研究表明,當(dāng)電機(jī)存在轉(zhuǎn)速差時(shí)對傳動(dòng)系統(tǒng)產(chǎn)生拍振的作用,進(jìn)而加重嚙合沖擊。利用ADAMS對齒輪傳動(dòng)進(jìn)行動(dòng)力學(xué)分析,得到1、2軸齒輪載荷波動(dòng)值較大,且隨著轉(zhuǎn)速差的增大而逐漸增大,兩電機(jī)的轉(zhuǎn)速差不宜超過5 r/min。當(dāng)電動(dòng)機(jī)存在轉(zhuǎn)速差時(shí),轉(zhuǎn)速低的電機(jī)安裝在1軸上,轉(zhuǎn)速高的電動(dòng)機(jī)安裝在3軸上,這樣各齒輪受到的載荷、振動(dòng)相對較小。最后,針對電機(jī)扭矩軸和中間過渡扭矩軸剛度大小影響各齒輪受到載荷波動(dòng)的問題。分別通過考慮電機(jī)扭矩軸和中間過渡扭矩軸的剛度,利用ADAMS對薄煤層采煤機(jī)截割部齒輪傳動(dòng)部分進(jìn)行動(dòng)力學(xué)仿真分析。在電機(jī)扭矩軸和中間過渡扭矩軸長度不變的情況下,得到直徑分別為39~41 mm、42~44 mm時(shí),薄煤層采煤機(jī)截割部齒輪傳動(dòng)比較平穩(wěn)、振動(dòng)相對較小、綜合性能比較好。另外,針對末級(jí)行星機(jī)構(gòu)傳動(dòng)軸的剛度對行星傳動(dòng)進(jìn)行動(dòng)力學(xué)仿真分析,得到傳動(dòng)軸的外徑為80~82 mm,內(nèi)徑為35 mm時(shí),行星機(jī)構(gòu)中各齒輪之間的嚙合力波動(dòng)比較小、振動(dòng)較小。
[Abstract]:Gear transmission is the key component of power transmission in cutting part of shearer. Its performance determines the working efficiency and service life of the whole machine. Because of the compact structure of thin coal seam shearer, narrow coal mining space, bad working conditions and various impact loads, at the same time, the change of meshing stiffness caused by single and double teeth alternately meshing gears, as well as the characteristics of torque shaft and motor, etc. The cutting part of the gear drive has a great impact load in the working process, which has a great impact on the transmission performance of the gear. Dynamic analysis of gear transmission can fully reflect the dynamic characteristics of gear in the process of transmission. Aiming at a certain type of double motor driven thin coal seam shearer cutting gear drive, the solid modeling is carried out, and the dynamic simulation analysis is carried out under the condition of constant torque. The main contents are as follows: first, Three dimensional solid model of gear and torque axis of cutting part of thin coal seam shearer is established by UG, and virtual assembly and interference test are carried out. Secondly, in view of the manufacturing and installation error, the center distance between the gears will be deviated, and the center distance installation deviation will have a certain impact on the load fluctuation of the transmission mechanism. This paper focuses on the study of the three-axis and four-axis gears which are driven by the double motor under the maximum theoretical load. The dynamic simulation analysis is carried out on the three-axis and four-axis gears when there is the center distance deviation. The relation between the fluctuation rate of each gear under load and the deviation of center distance is obtained, which decreases first and then increases. The center distance installation error in the range of 041.0021.0175-mm is relatively small, but after the deviation exceeds, the fluctuation is larger. Thirdly, this paper analyzes the fact that the output characteristics of the two motors are not completely consistent due to the manufacturing errors. The results show that the motor has the effect of striking vibration when the speed difference of the motor exists, and then the meshing impact is aggravated. The dynamic analysis of gear transmission by ADAMS shows that the load fluctuation value of the gear with one shaft and two shafts is large and increases gradually with the increase of rotational speed difference, and the difference between the two motors should not exceed 5 r / min. When the speed difference of the motor exists, the motor with low speed is installed on the 1 axis and the motor with high speed is installed on the 3 axis, so the load on each gear is relatively small. Finally, the stiffness of the motor torque shaft and the intermediate transition torque shaft affects the load fluctuation of each gear. By considering the stiffness of motor torque shaft and intermediate transition torque shaft, the dynamic simulation analysis of the gear transmission part of the cutting part of the thin coal seam shearer is carried out by using ADAMS. Under the condition of constant length of motor torque shaft and intermediate transition torque shaft, when the diameter is 39 ~ 41 mm,42~44 mm, the gear drive of cutting part of thin coal seam shearer is stable, the vibration is relatively small, and the comprehensive performance is better. In addition, according to the stiffness of the drive shaft of the final planetary mechanism, the dynamic simulation analysis of the planetary transmission is carried out. When the outer diameter of the drive shaft is 80 ~ 82 mm, and the inner diameter is 35 mm, the meshing force between the gears in the planetary mechanism is relatively small and the vibration is small.
【學(xué)位授予單位】：黑龍江科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TD421.63

【相似文獻(xiàn)】

相關(guān)期刊論文 前10條

1 喬紅兵,吳淼;我國薄煤層采煤機(jī)的發(fā)展與前景[J];中國煤炭;2005年10期

2 王立國,孫鵬;薄煤層采煤機(jī)的技術(shù)特點(diǎn)及研制[J];煤礦機(jī)電;2005年01期

3 傅根生;;淺談薄煤層采煤機(jī)的使用與維修[J];江西煤炭科技;2007年04期

4 ;國內(nèi)首臺(tái)全機(jī)載薄煤層采煤機(jī)面世[J];中國礦業(yè);2008年07期

5 白躍;;大功率薄煤層采煤機(jī)問世[J];煤炭工程;2009年12期

6 段力權(quán);;薄煤層采煤機(jī)的發(fā)展及技術(shù)分析[J];價(jià)值工程;2010年36期

7 韓曉彬;;薄煤層及超薄煤層采煤機(jī)技術(shù)現(xiàn)狀及趨勢分析[J];科技與企業(yè);2013年18期

8 周振華;;對研制薄煤層采煤機(jī)的一點(diǎn)看法[J];煤炭科學(xué)技術(shù);1982年01期

9 李明哲;對我國薄煤層采煤機(jī)研制設(shè)計(jì)的意見[J];煤礦機(jī)械;1983年06期

10 汪宗弘;張景行;;發(fā)展極薄煤層采煤機(jī)的意見與措施[J];煤礦機(jī)電;1983年04期

相關(guān)會(huì)議論文 前5條

1 尹力;Knorr;;三一重裝400B系列薄煤層采煤機(jī)關(guān)鍵技術(shù)研究[A];全國煤礦復(fù)雜難采煤層開采技術(shù)[C];2012年

2 李建民;章之燕;劉鵬;;較薄煤層采煤機(jī)的幾個(gè)關(guān)鍵設(shè)計(jì)問題[A];中國煤炭學(xué)會(huì)煤礦機(jī)電一體化專業(yè)委員會(huì)、中國電工技術(shù)學(xué)會(huì)煤礦電工專業(yè)委員會(huì)論文集[C];2008年

3 丁念波;顧勝龍;;興隆煤礦大傾角薄煤層采煤機(jī)的應(yīng)用與分析[A];全國煤礦復(fù)雜難采煤層開采技術(shù)[C];2012年

4 周常飛;張偉;;薄煤層采煤機(jī)大功率截割傳動(dòng)部的研制與應(yīng)用[A];中國煤炭新型工業(yè)化之路——安全、高效的集約化生產(chǎn)技術(shù)與裝備研討會(huì)論文集[C];2005年

5 ;MG300-BW型薄煤層采煤機(jī)研制[A];河北省煤炭工業(yè)科學(xué)技術(shù)工作會(huì)議論文集[C];2006年

相關(guān)重要報(bào)紙文章 前10條

1 張哲浩;國內(nèi)首臺(tái)全機(jī)載薄煤層采煤機(jī)面世[N];科技日報(bào);2008年

2 王麗萍邋李艷 王菲;國內(nèi)首臺(tái)全機(jī)載薄煤層采煤機(jī)在西安面世[N];陜西日報(bào);2008年

3 朱達(dá)輝;永榮自行研制的極薄煤層采煤機(jī)效果好[N];經(jīng)理日報(bào);2008年

4 記者 劉維久;用戶催得緊[N];中國煤炭報(bào);2005年

5 申春雨;天擇公司 設(shè)計(jì)制造薄煤層采煤機(jī)深受用戶青睞[N];中國礦業(yè)報(bào);2009年

6 記者校天奇 通訊員路艷萍;大功率重型薄煤層采煤機(jī)研制成功[N];中國煤炭報(bào);2010年

7 記者 李艷　實(shí)習(xí)生 李海靜;我省生產(chǎn)的世界功率最大薄煤層采煤機(jī)通過評議[N];陜西日報(bào);2010年

8 白躍新;太礦集團(tuán)薄煤層采煤機(jī)出世不凡[N];中國工業(yè)報(bào);2009年

9 白躍新;太礦薄煤層采煤機(jī)“出手不凡”[N];山西經(jīng)濟(jì)日報(bào);2009年

10 記者陳遙;雞西煤機(jī)公司:薄煤層采煤機(jī)研發(fā)獲突破[N];中國煤炭報(bào);2011年

相關(guān)博士學(xué)位論文 前1條

1 王鐵軍;基于動(dòng)態(tài)精細(xì)建模的薄煤層采煤機(jī)廣義記憶切割技術(shù)研究[D];中國礦業(yè)大學(xué)（北京）;2013年

相關(guān)碩士學(xué)位論文 前5條

1 單長斌;基于ADAMS薄煤層采煤機(jī)截割部齒輪傳動(dòng)動(dòng)力學(xué)分析[D];黑龍江科技大學(xué);2015年

2 田震;薄煤層采煤機(jī)振動(dòng)特性研究[D];遼寧工程技術(shù)大學(xué);2013年

3 馬聯(lián)偉;薄煤層采煤機(jī)可靠性與疲勞壽命研究[D];遼寧工程技術(shù)大學(xué);2013年

4 李美頤;薄煤層采煤機(jī)液壓調(diào)高系統(tǒng)的可靠性研究[D];遼寧工程技術(shù)大學(xué);2013年

5 林瑞華;H公司薄煤層采煤機(jī)項(xiàng)目開發(fā)的計(jì)劃管理[D];吉林大學(xué);2011年

，

本文編號(hào)：2263260