本文選題：直齒錐齒輪 + 安裝誤差��； 參考：《河南科技大學(xué)》2014年碩士論文

【摘要】：本文以直齒錐齒輪修形齒面安裝誤差敏感性分析為研究對象，首先依據(jù)刨齒展成法及齒輪嚙合原理建立了直齒錐齒輪修形齒面的齒面方程并編制了相應(yīng)的程序。分別進(jìn)行了理想狀態(tài)和含有安裝誤差情況下修形齒面直齒錐齒輪的TCA和有限元靜態(tài)接觸分析。論文主要研究的內(nèi)容如下： 1設(shè)計(jì)直齒錐齒輪的幾何參數(shù)，進(jìn)行了直齒錐齒輪的齒向修形、齒廓修形等修形方式并建立了未修形、齒向修形、齒廓修形及綜合修形的直齒錐齒輪的齒面方程。在此基礎(chǔ)上算出來了未修形、齒向修形、齒廓修形及綜合修形的直齒錐齒輪的齒面點(diǎn)。 2建立含有軸向錯(cuò)位誤差、軸線分離誤差、軸交角變化誤差的直齒錐齒輪修形齒面坐標(biāo)系。進(jìn)行直齒錐齒輪修形齒面安裝誤差敏感性分析：提出差曲面的Gauss曲率、計(jì)算嚙合點(diǎn)Gauss曲率。通過齒面安裝誤差敏感性的優(yōu)化設(shè)計(jì)，得到了對安裝誤差敏感性低的齒面。 3介紹了有限元軟件的理論基礎(chǔ)，編制了理想和含有安裝誤差的直齒錐齒輪修形齒面的有限元節(jié)點(diǎn)、單元模型。在此基礎(chǔ)上編制了直齒錐齒輪接觸的三維有限元模型、創(chuàng)建接觸對、施加邊界條件等過程的APDL命令流語言程序。然后運(yùn)用ANSYS有限元軟件分析了理想狀態(tài)和含有安裝誤差下的修形齒面直齒錐齒輪靜態(tài)接觸應(yīng)力，進(jìn)而驗(yàn)證了理論的正確性。 4根據(jù)生成的齒面點(diǎn)創(chuàng)建了直齒錐齒輪修形齒面的三維精確模型，采取了UG仿真加工中固定軸曲面輪廓的銑削方式對直齒錐齒輪大、小輪齒面進(jìn)行了精加工的模擬加工，通過自己建立的后處理生成了fanuc系統(tǒng)數(shù)控機(jī)床的數(shù)控程序，這樣在實(shí)驗(yàn)加工時(shí)機(jī)床能夠識(shí)別，，從而為用立式四軸聯(lián)動(dòng)的FA-3225H型數(shù)控龍門銑床對直齒錐齒輪大輪、修形小輪齒面進(jìn)行實(shí)驗(yàn)加工奠定了基礎(chǔ)。 5用立式四軸聯(lián)動(dòng)的FA-3225H型數(shù)控龍門銑床對直齒錐齒輪大輪、修形小輪齒面進(jìn)行了精加工。然后將加工好的直齒錐齒輪大、小輪安裝在Y9550滾檢機(jī)上，在滿足安裝距及不同安裝誤差下進(jìn)行滾檢實(shí)驗(yàn)，由實(shí)驗(yàn)得到的接觸區(qū)位置分析出修形直齒錐齒輪小輪對安裝誤差性不敏感，從而驗(yàn)證了理論研究的正確性。
[Abstract]:In this paper, the sensitivity analysis of tooth surface installation error of straight bevel gear is studied. Firstly, based on the planing generation method and gear meshing principle, the tooth surface equation of straight bevel gear is established and the corresponding program is compiled. The TCA and finite element static contact analysis of modified straight bevel gears with ideal state and with installation error are carried out respectively. The main contents of this thesis are as follows: The main contents are as follows: 1. The geometric parameters of straight bevel gear are designed. The tooth profile modification and tooth profile modification of straight bevel gear are carried out, and the tooth surface equations of unmodified, tooth profile modified, tooth profile modified and integrated modified straight bevel gear are established. On this basis, the tooth surface points of straight bevel gear with unmodified, tooth profile, tooth profile and comprehensive modification are calculated. (2) the modified tooth surface coordinate system of straight bevel gear with axial misalignment error, axis separation error and axis angle change error is established. Sensitivity analysis of mounting error of straight bevel gear surface is carried out: Gauss curvature of difference surface is proposed and Gauss curvature of meshing point is calculated. The tooth surface with low sensitivity to installation error is obtained by optimizing the sensitivity of tooth surface installation error. 3. The theoretical basis of the finite element software is introduced, and the finite element model of the modified tooth surface of the straight bevel gear with ideal and installation errors is developed. On this basis, a three-dimensional finite element model for the contact of spur bevel gears is developed, and a APDL command flow language program is developed for the process of creating contact pairs and applying boundary conditions. Then the static contact stress of modified straight bevel gear in ideal state and with installation error is analyzed by using ANSYS finite element software, and the correctness of the theory is verified. 4 according to the generated tooth surface point, the three-dimensional accurate model of the modified tooth surface of straight bevel gear is established, and the milling method of fixed axis curved profile in UG simulation machining is adopted to simulate the finishing machining of straight bevel gear with large tooth surface and small gear tooth surface. The numerical control program of fanuc system NC machine tool is generated through the post processing established by oneself, so that the machine tool can be recognized in the experimental processing, so that the straight bevel gear big wheel is opposite to the FA-3225H type NC gantry milling machine with vertical four-axis linkage. The experimental processing of the tooth surface of the modified small wheel has laid the foundation. 5. The tooth surface of straight bevel gear is refined by using vertical four axis linkage FA-3225H CNC gantry milling machine. Then, the machined straight bevel gear is installed on the Y9550 rolling inspection machine, and the rolling inspection experiment is carried out under the conditions of satisfying the installation distance and different installation errors. The position of the contact area obtained from the experiment shows that the modified bevel gear is insensitive to the installation error, which verifies the correctness of the theoretical research.
【學(xué)位授予單位】：河南科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TH132.41

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