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  本文關(guān)鍵詞： 直齒端齒盤 幾何設(shè)計 強度分析 疲勞分析 磨齒加工　出處：《中南大學》2014年碩士論文　論文類型：學位論文

【摘要】：摘要：直齒端齒聯(lián)軸器是由兩個相互嚙合的直齒端齒盤來聯(lián)接軸或回轉(zhuǎn)件來傳遞扭矩的裝置,廣泛應用于渦輪發(fā)動機、燃氣輪機上及液力傳動內(nèi)燃機車等高速重載設(shè)備中。目前國內(nèi)對直齒端齒盤的設(shè)計主要是通過參照系列化的標準及經(jīng)驗來實現(xiàn)的,不能滿足不同工況下對直齒端齒盤的需求。因此,本文以沈陽鼓風機壓縮機端齒盤設(shè)計制造為對象,對直齒端齒盤的幾何參數(shù)計算、強度設(shè)計、中心拉桿的疲勞分析以及端齒盤的磨齒加工方法進行研究,主要內(nèi)容如下： (1)建立直齒端齒盤的幾何參數(shù)計算方法。提出基于圓柱直齒輪的設(shè)計的直齒端齒盤的幾何參數(shù)計算方法；建立直齒端齒盤的接觸有限元模型,分析直齒端齒盤的齒面接觸應力和齒根彎曲應力。 (2)建立直齒端齒盤的強度分析方法。分別建立不含預緊力和含預緊力兩種情況下的直齒端齒盤強度分析的解析方法和有限元分析方法。 (3)分析直齒端齒盤的大端直徑、端面齒形角以及齒數(shù)等主要宏觀參數(shù)對直齒端齒盤強度的影響規(guī)律。 (4)研究直齒端齒盤中心拉桿的疲勞強度分析方法。分析直齒端齒盤中心拉桿的預緊力計算方法,建立中心拉桿強度分析的有限元模型；分析中心拉桿的疲勞壽命。 (5)給出直齒端齒盤的設(shè)計方法。根據(jù)負載扭矩,設(shè)計滿足強度要求的直齒端齒盤。 (6)分析直齒端齒盤的磨齒加工方法。分析采用盤形砂輪加工直齒端齒盤的方法；根據(jù)機床的數(shù)學模型推導加工直齒端齒盤的機床運動控制方程,并得到數(shù)控加工程序；對加工方法進行虛擬仿真。 (7)直齒端齒盤的磨齒加工實驗。根據(jù)直齒端齒盤的磨削加工方法,在YMC850B型數(shù)控加工中心上,完成直齒端齒盤的磨削加工實驗,驗證加工方法的正確性。圖67幅,表6個,參考文獻79篇。
[Abstract]:Absrtact: the straight tooth end gear coupling is a device by which two intermeshing straight teeth end teeth are connected to the shaft or rotary parts to transfer torque, and are widely used in turbine engines. In the high speed heavy duty equipment such as gas turbine and hydraulic diesel locomotive, the design of straight tooth end tooth disk in China is mainly realized by referring to the standard and experience of serialization. The design and manufacture of the end tooth disk of Shenyang blower compressor are taken as the object, and the geometric parameters and strength design of the straight tooth end tooth disk are calculated. The fatigue analysis of the central pull rod and the grinding method of the end gear disk are studied. The main contents are as follows:. 1) the method of calculating geometric parameters of straight tooth end disk is established. The geometric parameter calculation method of straight tooth end disk based on the design of cylindrical straight gear is put forward, and the contact finite element model of straight tooth end disk is established. The tooth surface contact stress and tooth root bending stress of the straight end disk are analyzed. (2) the strength analysis method of straight tooth end disk is established, and the analytical method and finite element analysis method are established for the strength analysis of straight tooth end disk without pretightening force and with pre tightening force respectively. 3) the influence of the main macro parameters, such as the large end diameter, the tooth shape angle and the tooth number, on the strength of the straight tooth end disk is analyzed. 4) the fatigue strength analysis method of the center pull rod with straight tooth end tooth disk is studied, the calculation method of pretension force is analyzed, the finite element model of the center pull rod strength analysis is established, and the fatigue life of the center pull rod is analyzed. The design method of straight tooth end disk is given. According to the load torque, the straight tooth end tooth disk is designed to meet the strength requirement. (6) analyzing the grinding method of straight tooth end tooth disk, analyzing the method of machining straight tooth end tooth disk with disc grinding wheel, deducing the control equation of machine tool motion of machining straight tooth end tooth disk according to the mathematical model of machine tool, and getting the NC machining program. Virtual simulation of machining method is carried out. According to the grinding method of straight tooth end disk, the grinding experiment of straight tooth end disk is completed on YMC850B NC machining center, which verifies the correctness of the machining method. 79 references.
【學位授予單位】：中南大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TH132.41;TG616

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