共查询到20条相似文献，搜索用时 15 毫秒
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安国会 《河南职业技术师范学院学报》1995,23(2):53-56
本文对齿轮齿根弯曲应力计算表达式σＦ＝ＫＦｔ／ｂｍＹＦａＹｓａ中齿宽ｂ以及对在两轮齿宽不相等的情况下，运用σＦ２＝σＦ１ＹＦａ２Ｙｓａ２／ＹＦａ１Ｙｓａ１求从动轮上的齿根弯曲应力提出商榷；并对式中从动轮所受的圆周力Ｆｔ２计算谈一点粗浅看法。 相似文献
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准双曲面齿轮在高速运转时的噪声问题，国内外各生产厂家和各高等院校都在从事研究与攻关，提出了各自的观点。本文经综合分析准双曲面齿轮降噪的各种观点，并在生产实际中通过各种降噪试验，结果表明，一是可以通过加高齿高为齿轮齿顶修缘提供一个多余的齿高量，从而降低或消除啮入噪声；二是可以加长齿长方向的重叠系数，使重叠系数尽可能大，至少超过2．0，这样能有效降低噪声。 相似文献
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The stress and the elastic deflection of internal ring gear in high-speed spur planetary gear units are investigated. A rim thickness parameter is defined as the flexibility of internal ring gear. Six evenly spaced linear springs are used to describe the fitting status between internal ring gear and the gearcase, The finite element model of the whole internal ring gear is established by means of Pro/E and ANSYS. The loads on meshing teeth of internal ring gear are applied according to the contact ratio and the load-sharing coefficient. With the finite element analysis （FEA）, the influences of flexibility and fitting status on the stress and elastic deflection of internal ring gear are predicted. The simulation reveals that the principal stress and deflection increase with the decrease of rim thickness of internal ring gear. Moreover, larger spring stiffness helps to reduce the stress and deflection of internal ring gear. Therefore, the flexibility of internal ring gear must be considered during the design of high-speed planetary gear transmissions. 相似文献
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通过计算机模拟形象表达直齿圆锥齿轮球面渐开线及齿廓曲面的形成过程。由于锥齿轮的球面齿廓无法展开，不易测量，给圆锥齿轮的设计和制造带来困难。背锥的齿形与锥齿轮大端球面上的齿形非常接近，用近似的可以展开的背锥代替得到锥齿轮的当量齿轮，大大简化锥齿轮的分析与设计。 相似文献
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A virtual computerized numerical control C CNC） processing system is built for spiral bevel and hypoid gears. The pre-designed process of the solution to locate the way of realization is investigated. A kind of combined programming method and principle of solid modeling are chosen. Multienvironmental programming thought and the inter-connected mechanisms between different environments are applied in the proposed system. The problems of data exchange and compatibility of modules are settled. Environment of the system is founded with object oriented programming thought. AutoCAD is located as the graphic environment. Matlab is used for editing the computation module. Virtual C ＋＋6.0 is the realization environment of the main module. Windows is the platform for realizing the multi-environmental method. Through establishing the virtual system based windows message handling mechanism and the component object model, the application of multienvironmental programming is realized in the manufacture system simulation. The virtual gear product can be achieved in the accomplished software. 相似文献
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给出了微小齿轮设计需满足的条件,实现了微小直齿圆柱齿轮传动的设计和啮合,并通过加工实例进行了验证． 相似文献
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根据渐开线齿轮啮合原理，推导出双惰轮传动机构的正确啮合条件等式，并根据等式编程求解，设计悬索桥主缆缠丝机的双惰轮传动机构。 相似文献
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徐向纮 《金华职业技术学院学报》2001,1(3):11-12,10
齿轮的齿形误差是影响齿轮传动噪声的主要因素。本文研究了齿轮的齿形误差、特别是压力角误差对齿轮传动噪声的影响，根据齿形压力角误差对齿形误差进行了补充，规定了齿形误差的符号，提出了齿轮副综合齿形误差的概念，认为影响齿轮传动噪声的关键是相啮合的一对齿轮的齿轮副综合齿形误差而不是单个齿轮的齿形误差，并对其原因作了初步的定性分析。 相似文献
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通过应用VB语言编制程序,以计算绘图所需的齿轮范成参数实现刀具和齿坯的范成运动和刀具的切削运动,实现任意模数、任意齿数不同压力角及不同变位系数齿轮的动态切削仿真,克服了采用齿廓范成仪做实验时,参数不能改变的局限性,基本满足现代化教学要求. 相似文献