【摘要】：在局部綜合法計算結(jié)果的基礎(chǔ)上根據(jù)齒面接觸分析(Tooth Contact Analysis, TCA)結(jié)果進行修正,是現(xiàn)行計算螺旋錐齒輪加工參數(shù)(含刀具幾何參數(shù)、機床調(diào)整參數(shù))的主要方法,但未能充分考慮載荷對傳動性能(含齒面最大接觸應(yīng)力、齒根最大彎曲應(yīng)力、傳動誤差幅值、重合度等)的影響,使得齒輪副的壽命、噪音未達最優(yōu)水平。論文針對這一不足,提出一種計算螺旋錐齒輪加工參數(shù)的改進方法：由局部綜合法計算出螺旋錐齒輪加工參數(shù)的初始值,根據(jù)TCA結(jié)果修正該初始值,最后根據(jù)不同載荷下的加載接觸分析(Loaded Tooth Contact Analysis, LTCA)結(jié)果優(yōu)化得到不同載荷下的螺旋錐齒輪加工參數(shù)。對算例的數(shù)值分析結(jié)果表明,對于長期傳遞較輕載荷、而偶爾傳遞額定載荷的螺旋錐齒輪副,按額定載荷進行幾何設(shè)計,按較輕載荷設(shè)計加工參數(shù)會使傳動性能更優(yōu)良。滾動檢驗的結(jié)果驗證了加工參數(shù)改變后數(shù)值分析出的接觸區(qū)的正確性。論文具體進行了如下探索： (1)推導(dǎo)HFT法、SGG法加工參數(shù)的計算公式； (2)以螺旋錐齒輪的加工參數(shù)為自變量,以傳動性能指標為因變量,研究了HFT法(弧齒準雙曲面齒輪副的大輪用成形法加工,小輪用刀傾法加工)加工的齒輪副在不同載荷條件下因變量與自變量之間的相關(guān)關(guān)系； (3)定量分析不同加工方法對應(yīng)的自變量對齒面的影響規(guī)律,篩選掉與所研究的因變量不相關(guān)的部分自變量,制定試驗方案；借助CATIA軟件建立了螺旋錐齒輪的不同加工方法對應(yīng)的齒輪幾何模型,將齒輪幾何模型導(dǎo)入ABAQUS軟件進行LTCA,通過有限元后處理獲取因變量在加工參數(shù)、載荷變化時的響應(yīng)；分析不同加工參數(shù)、不同載荷條件下的因變量響應(yīng)情況。對于所采用的HFT法算例,大輪扭矩不超過2000N.m,滾比倍數(shù)在1～1.0025內(nèi)增加時,齒面最大接觸應(yīng)力的增加量在8.6%以內(nèi),而傳動誤差幅值的減小量可以達到31.5%,重合度也有的3.3%的增大； (4)由于SGG法的加工參數(shù)對齒面的影響規(guī)律與HFT法相似,因此依據(jù)傳統(tǒng)搖臺式機床向YK2210型銑齒機的運動等效轉(zhuǎn)換原則,拓寬YK2210型數(shù)控螺旋錐齒輪銑齒機(以下簡稱“YK2210型銑齒機”)的加工范圍,開發(fā)了SGG法加工程序,加工了兩套齒輪,并進行滾動檢驗實驗,滾動檢驗的結(jié)果驗證了論文LTCA方法的正確性。
[Abstract]:Based on the results of local synthesis method, the main method for calculating the machining parameters of spiral bevel gears (including tool geometry parameters and machine tool adjustment parameters) is to modify the results of tooth surface contact analysis (Tooth Contact Analysis, TCA). However, the influence of load on transmission performance (including the maximum contact stress of tooth surface, the maximum bending stress of tooth root, the amplitude of transmission error, the degree of coincidence, etc.) has not been fully considered, and the life and noise of gear pair have not reached the optimal level. In this paper, an improved method for calculating the machining parameters of spiral bevel gear is proposed. The initial value of machining parameters of spiral bevel gear is calculated by local synthesis method, and the initial value is corrected according to TCA results. Finally, the machining parameters of spiral bevel gear under different loads are optimized according to the (Loaded Tooth Contact Analysis, LTCA) results of load contact analysis under different loads. The numerical results of numerical analysis show that the geometric design of spiral bevel gear pairs which transmit light load for a long time and the spiral bevel gear pair occasionally transfer rated load can make the transmission performance better according to the geometric design of rated load and the design of machining parameters according to lighter load. The results of rolling test verify the accuracy of the numerical analysis of the contact area after the change of machining parameters. The main contents of this paper are as follows: (1) deducing the formula of HFT method and SGG method; (2) taking the machining parameters of spiral bevel gear as independent variable and transmission performance index as dependent variable, the HFT method is studied. The correlation between dependent variable and independent variable under different load conditions; (3) quantitative analysis of the influence of independent variables of different processing methods on the tooth surface, screening out some independent variables that are not related to the dependent variables studied, and formulating the test plan; The gear geometry model corresponding to different machining methods of spiral bevel gear is established by using CATIA software. The gear geometry model is imported into ABAQUS software to obtain the response of dependent variables under machining parameters and load changes through finite element post-processing. The response of dependent variables under different processing parameters and loading conditions is analyzed. For the example of HFT method adopted, when the torque of large wheel is not more than 2000N.m, the maximum contact stress of tooth surface is increased within 8.6% when the ratio of roll ratio is increased within 1 ~ 1.0025, and the amplitude of transmission error can be reduced by 31.5%. The degree of coincidence also increased by 3.3%; (4) because the influence of processing parameters of SGG method on tooth surface is similar to that of HFT method, according to the principle of equivalent transformation from traditional shaking table machine to YK2210 type gear milling machine, To widen the machining range of YK2210 type NC spiral bevel gear milling machine (hereinafter referred to as "YK2210 type milling machine"), the program of SGG method is developed, two sets of gears are machined, and the rolling inspection experiment is carried out. The result of rolling test verifies the correctness of LTCA method in this paper.
【學(xué)位授予單位】：中南大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2011
【分類號】：TH132.41

【參考文獻】

相關(guān)期刊論文 前10條

1 鄧效忠,方宗德,楊宏斌,魏冰陽;高重合度弧齒錐齒輪的強度分析[J];航空動力學(xué)報;2002年03期

2 唐進元;曹康;周超;李國順;;小輪齒面誤差與調(diào)整參數(shù)誤差敏感性研究[J];航空動力學(xué)報;2009年09期

3 唐進元;黃云飛;周超;盧延峰;;弧齒錐齒輪展成齒面的幾何建模[J];計算機仿真;2009年02期

4 唐進元;蒲太平;戴進;;SGM法加工的螺旋錐齒輪幾何建模研究[J];機械傳動;2008年01期

5 唐進元;陳嫦;蒲太平;;考慮誤差、軸變形和軸承剛度的弧齒錐齒輪LTCA[J];機械傳動;2010年05期

6 劉鵠然,陳良玉,劉志峰;奧利康與克林根貝爾格制銑齒機工作原理的新認識[J];機械傳動;1998年03期

7 羅建勤,曾韜;用差曲面確定螺旋錐齒輪的齒面接觸區(qū)[J];機械傳動;1999年01期

8 張秀親;邵家輝;;圓弧齒輪的誕生、發(fā)展及應(yīng)用回顧[J];機械技術(shù)史;2002年00期

9 王三民,沈允文;具有最佳加載接觸性能的弧齒錐齒輪主動設(shè)計研究[J];機械科學(xué)與技術(shù);2001年05期

10 魏冰陽,任東鋒,方宗德,周彥偉;傳統(tǒng)機床與Free-Form型機床運動的等效轉(zhuǎn)換[J];機械科學(xué)與技術(shù);2004年04期

相關(guān)碩士學(xué)位論文 前1條

1 蒲太平;螺旋錐齒輪加載接觸分析及嚙合剛度的有限元計算方法研究[D];中南大學(xué);2010年

，

本文編號：2371178