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直齿锥齿轮传动广泛应用在传递相交两轴之间的运动,常用的直齿锥齿轮传动为轴间交角∑=90°的标准直齿锥齿轮传动。图1是我公司在维修多台进口精密机床时,经常需要加工的一种直齿锥齿轮。由于我公司没有专业的齿轮加工分厂,所以加工后的直齿锥齿轮没有专用量具进行测量,一般都用通用量具测量直齿锥齿轮的支承端距H1尺寸。 相似文献
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纵观曲齿锥齿轮的发展历史可以看出:其两种主要类型一弧齿和摆线齿,是由加工机床决定的。随着机械科学与其他学科的交叉,切削刀具与被加工齿轮之间的相对位置可以通过控制系统实现相当灵活的连续变动,曲齿锥齿轮的齿线和齿形应该将具有更大的选择范围。此外,应用计算机辅助技术可以充分挖掘传统加工机床潜在的强大的机械性能,使现有的廉价生产设备转变为高效、高可靠性、操作简便灵活的先进设备。 相似文献
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基于螺旋锥齿轮传动的啮合理论,阐述了摆线齿锥齿轮切齿原理及机床加工调整参数的计算,运用VB开发了摆线齿锥齿轮的几何参数计算和加工调整参数计算程序模块。其操作简便,计算速度快,对摆线齿锥齿轮的设计和加工具有一定的现实意义。 相似文献
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50年代以后,部分直齿锥齿轮有被曲线齿锥齿轮*取代的趋势,从而加快了曲线齿锥齿轮加工机床的发展。中、大型和适应硬齿面加工的曲线齿锥齿轮加工机床,以克林贝格(Klingelnberg)占优势。而中、小型和汽车、拖拉机等大量生产的锥齿轮加工机床,以格里森(Gleason)居世界首位;近年来 相似文献
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以齿轮啮合原理为基础,阐述了球面渐开线螺旋锥齿轮齿廓的形成机理,建立了螺旋锥齿轮齿面点坐标参数方程,构建了格里森制螺旋锥齿轮数学模型.利用基于Pro/E参数化建模方法,创建了螺旋锥齿轮单齿齿形,用阵列操作,建立了完整的螺旋锥齿轮三维实体造型,并通过运动仿真验证了该建模的精确性,为螺旋锥齿轮设计与制造研究提供了一种参数化设计方法. 相似文献
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To obtain the change tendency of output angular velocity and tangential contact force of a gear when the pinion under the step input during meshing of a new type of spiral bevel gear, which is a logarithmic spiral bevel gear, the tooth flank equation of logarithmic spiral bevel gear is deduced based on the formation mechanism of the tooth flank formation. A three-dimensional model of a pair of logarithmic spiral bevel gears whose number of teeth was 37:9, with modules being 4.5 mm, normal pressure angle being 20 degrees and spiral angle being 35 degrees were built and assembled. Based on Hertz elastic contact theory, the calculation formulas and parameters sets of contact force for conventional spiral bevel gear meshing simulation and logarithmic spiral bevel gear meshing simulation were done. Consider the dynamic simulation about meshing angular velocity and tangential contact force for conventional spiral bevel gear meshing and logarithmic spiral bevel gear meshing, respectively. Finally, by analyzing and comparing the simulation data, the results show that under the same input conditions, the fluctuation of the gear angular velocity and tangential contact force of logarithmic spiral bevel gear meshing are smaller than the conventional spiral bevel gear. That is, the transmission stationary of logarithmic spiral bevel gear meshing is superior to conventional spiral bevel gear. 相似文献
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为了提高对数螺旋锥齿轮三维精确模型的精确性和准确性,提出了基于MATLAB和Pro/E的对数螺旋锥齿轮离散化建模方法。首先,根据对数锥齿轮的形成原理建立齿面方程;然后,根据齿轮的具体参数计算齿面边界条件;接着利用MATLAB计算出齿面离散坐标点,将这些坐标点导入到三维建模软件Pro/E中,利用其逆向工程模块建立齿面的离散模型。以Pro/E为二次开发平台,运用C语言编程建立只需要输入相应参数即可自动完成锥齿轮创建的程序,为后续锥齿轮的静力学分析、动力学分析和齿面修形奠定了基础。 相似文献
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STUDYONDOUBLECIRCULARARCPROFILESPIRALBEVELGEARTRANSMISSIONSTUDYONDOUBLECIRCULARARCPROFILESPIRALBEVELGEARTRANSMISSIONLiJinbao;... 相似文献
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Pinion tooth surface generation strategy of spiral bevel gears 总被引:1,自引:0,他引:1
Aviation spiral bevel gears are often generated by spiral generated modified(SGM) roll method.In this style,pinion tooth surface modified generation strategy has an important influence on the meshing and contact performances.For the optimal contact pattern and transmission error function,local synthesis is applied to obtain the machine-tool settings of pinion.For digitized machine,four tooth surface generation styles of pinion are proposed.For every style,tooth contact analysis(TCA) is applied to obtain contact pattern and transmission error function.For the difference between TCA transmission error function and design objective curve,the degree of symmetry and agreement are defined and the corresponding sub-objective functions are established.Linear weighted combination method is applied to get an equivalent objective function to evaluate the shape of transmission error function.The computer programs for the process above are developed to analyze the meshing performances of the four pinion tooth surface generation styles for a pair of aviation spiral bevel gears with 38/43 teeth numbers.The four analytical results are compared with each other and show that the incomplete modified roll is optimal for this gear pair.This study is an expansion to generation strategy of spiral bevel gears,and offers new alternatives to computer numerical control(CNC) manufacture of spiral bevel gears. 相似文献
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螺旋锥齿轮动力学研究方法及进展 总被引:10,自引:1,他引:10
论述了螺旋锥齿轮动力学研究的三种主要方法,即加载接触分析(LTCA)、解多维非线性方程组的方法,以及加载接触分析与周向振动模型结合的仿真分析方法。介绍了这些方法的优缺点,并提出了研究螺旋锥齿轮动力学的若干关键技术。阐述了实际设计制造工程中螺旋锥齿轮动力学研究的任务。 相似文献