發(fā)布時(shí)間：2018-06-20 07:25

  本文選題：鋼球活齒 + 齒廓方程��； 參考：《北京工業(yè)大學(xué)》2012年碩士論文

【摘要】：活齒傳動(dòng)是一種由K-H-V型少齒差行星齒輪傳動(dòng)演化而成的用于傳遞兩同軸間回轉(zhuǎn)運(yùn)動(dòng)的機(jī)械傳動(dòng)，具有結(jié)構(gòu)緊湊、傳動(dòng)比范圍廣、承載能力大、傳動(dòng)效率較高、結(jié)構(gòu)形式多樣等優(yōu)點(diǎn)。二齒差活齒傳動(dòng)因其激波器形狀呈軸對(duì)稱結(jié)構(gòu)，自身質(zhì)量完全平衡，雙向工作載荷可相互抵消。本文的工作主要圍繞二齒差鋼球活齒傳動(dòng)的分析與設(shè)計(jì)以及凸輪激波滾動(dòng)活齒傳動(dòng)的強(qiáng)度分析等方面來展開。 論文簡述了鋼球活齒傳動(dòng)及與之相關(guān)的少齒差行星傳動(dòng)的發(fā)展歷史、國內(nèi)外研究現(xiàn)狀和傳動(dòng)特點(diǎn)�；谵D(zhuǎn)速變換和包絡(luò)原理，建立了動(dòng)、定盤封閉槽齒廓方程，推導(dǎo)了定盤封閉槽內(nèi)、外側(cè)齒廓的主曲率半徑公式，給出了避免定盤封閉槽發(fā)生齒廓干涉需要滿足的條件，在此基礎(chǔ)之上，對(duì)二齒差鋼球活齒傳動(dòng)的結(jié)構(gòu)參數(shù)及幾何設(shè)計(jì)問題進(jìn)行了分析討論。分析了傳動(dòng)比、動(dòng)盤理論半軸長度以及鋼球半徑等參數(shù)對(duì)定盤齒廓性質(zhì)的綜合影響，建立了齒形參數(shù)之間的取值聯(lián)系，同時(shí)根據(jù)傳動(dòng)原理及活齒架的結(jié)構(gòu)特點(diǎn)，給出了活齒架參數(shù)的計(jì)算公式。 對(duì)二齒差鋼球活齒傳動(dòng)的接觸特性進(jìn)行了研究。在建立變形協(xié)調(diào)關(guān)系的基礎(chǔ)上，基于赫茲接觸理論提出了嚙合副作用力的計(jì)算方法，并結(jié)合示例說明了方法的有效性，初步獲得了二齒差鋼球活齒傳動(dòng)嚙合副作用力的分布趨勢(shì)，并參考受力分析的結(jié)果對(duì)嚙合副進(jìn)行了強(qiáng)度計(jì)算。 對(duì)二齒差鋼球活齒傳動(dòng)的結(jié)構(gòu)進(jìn)行了設(shè)計(jì)。在給出整體設(shè)計(jì)方案的基礎(chǔ)上，，分析了嚙合副中動(dòng)、定盤封閉槽的截面結(jié)構(gòu)形狀，利用Pro/E軟件對(duì)各零部件進(jìn)行了三維實(shí)體仿真，并根據(jù)相互之間的接觸嚙合關(guān)系進(jìn)行了虛擬裝配，對(duì)整機(jī)進(jìn)行了干涉檢驗(yàn)。 利用嚙合原理及曲線等距的方法推導(dǎo)了凸輪激波滾動(dòng)活齒傳動(dòng)激波凸輪、中心內(nèi)齒輪的齒形方程，建立了各嚙合傳動(dòng)件及整機(jī)的三維模型，利用有限元分析軟件ANSYS Workbench對(duì)其進(jìn)行了強(qiáng)度計(jì)算，初步得到了應(yīng)力、應(yīng)變的分析結(jié)果。
[Abstract]:Movable tooth drive is a kind of mechanical transmission which is evolved from K-H-V type planetary gear transmission with less tooth difference. It is used to transfer the motion of rotation between two coaxial axes. It has compact structure, wide transmission ratio, large bearing capacity and high transmission efficiency. The structure is diverse and so on. Because of its axisymmetric structure, its mass is completely balanced, and the bi-directional working load can be counteracted to each other. The work of this paper mainly focuses on the analysis and design of steel ball movable tooth drive with two teeth difference and the strength analysis of cam shock wave rolling movable tooth transmission. This paper briefly describes the development history of steel ball movable tooth transmission and its relative planetary transmission with less tooth difference, the research status and transmission characteristics at home and abroad. Based on the rotational speed transformation and envelope principle, the tooth profile equations of moving and fixed disk closed slots are established, the main curvature radius formulas of the inner and outer tooth profiles of the fixed disk closed slots are derived, and the conditions to avoid the tooth profile interference in the fixed disk closed slots are given. On this basis, the structural parameters and geometric design of steel ball movable tooth drive with two teeth difference are analyzed and discussed. This paper analyzes the comprehensive influence of the transmission ratio, the theoretical half-shaft length of the moving disk and the radius of the steel ball on the tooth profile properties of the fixed disk, and establishes the value relation among the tooth profile parameters. At the same time, according to the transmission principle and the structural characteristics of the movable tooth frame, The formula for calculating the parameters of the movable tooth rack is given. The contact characteristics of steel ball movable tooth drive with two teeth difference are studied. Based on the theory of Hertz contact, the calculation method of meshing side effect force is put forward on the basis of the deformation coordination relationship, and the effectiveness of the method is illustrated by an example. The distribution trend of meshing side effect force of steel ball movable tooth drive with two teeth difference is obtained preliminarily, and the strength of meshing pair is calculated with reference to the result of force analysis. The structure of steel ball movable tooth drive with two teeth difference is designed. On the basis of giving the overall design scheme, the section structure shape of the meshing pair is analyzed, and the 3D entity simulation of the parts is carried out by using Prop / E software. According to the contact meshing relationship, virtual assembly is carried out, and the interference test is carried out on the whole machine. Based on the meshing principle and the curve equidistance method, the tooth shape equations of the shock cam and the center inner gear of the cam shock wave rolling movable tooth drive are derived, and the three dimensional models of the meshing parts and the whole machine are established. The strength of the finite element analysis software ANSYS Workbench has been calculated, and the results of stress and strain analysis have been preliminarily obtained.
【學(xué)位授予單位】：北京工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類號(hào)】：TH132.41

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