展开式斜齿圆柱齿轮减速器可靠性优化设计

在展开式斜齿圆柱齿轮减速器的静态优化设计中引入齿轮强度可靠性约束条件,建立了两级斜齿圆柱齿轮减速器可靠性优化设计数学模型,并给出了设计实例.     

基于免疫算法的齿轮减速器模糊可靠性优化设计

将模糊可靠性优化设计方法应用于齿轮减速器设计,建立了斜齿圆柱齿轮减速器模糊可靠性优化设计的数学模型。本文应用所开发的免疫算法对三级斜齿圆柱齿轮减速器的模糊可靠性优化设计进行了分析计算,实例证明该方法非常有效。     

二级斜齿圆柱齿轮减速器模糊可靠性优化设计与研究

结合模糊可靠性设计理论和优化设计技术,提出了二级斜齿圆柱齿轮减速器的模糊可靠性优化设计方法,并给出设计实例.其结果表明了模糊可靠性优化是一种更科学、更符合客观实际的设计方法.     

基于Matlab的减速器优化设计

将最优化数学理论与具有强大数值计算功能的软件Matlab相结合,运用到二级斜齿圆柱齿轮减速器优化设计过程中。优化设计过程以二级斜齿圆柱齿轮减速器体积最小为目标函数,提出相应约束条件,并对给定设计实例进行优化计算,得到优化方案,与原设计方案相比,新设计方案体积减小25.02%,优化效果明显。     

斜齿圆柱齿轮减速器模糊可靠性优化设计

运用模糊数学和机械可靠性优化设计理论 ,提出了一个通用的同轴式三级斜齿圆柱齿轮减速器模糊可靠性优化设计的数学模型 ,并对实例进行了计算 ,结果表明具有可行性和实用性     

MATLAB优化工具箱在齿轮减速器设计中的应用

以单级斜齿圆柱齿轮减速器轮齿强度可靠度为约束条件,以减速器体积为优化目标函数,建立可靠性优化设计数学模型,并用MATLAB优化工具箱求出最优解。     

单级斜齿圆柱齿轮减速器的可靠性优化设计

以单级斜齿圆柱齿轮减速器轮齿强度可靠度为约束条件,以减速器体积为优化目标函数,建立可靠性优化设计数学模型,并用MATLAB优化工具箱求出最优解.     

基于MATLAB的多级齿轮传动多目标可靠性优化设计研究

机械可靠性优化设计是以机械产品的可靠度作为目标函数或约束条件,运用优化设计方法获得最佳设计方案的现代设计方法。本研究以三级斜齿圆柱齿轮减速器可靠性优化设计为例,以减速器体积最小、传动平稳可靠为目标函数,将强度设计可靠性纳入约束条件,建立多级齿轮传动多目标可靠性优化设计数学模型,利用MATLAB优化工具箱进行可靠性优化设计。     

斜齿圆柱齿轮减速器模糊可靠性优化设计

运用模糊数学和机械可靠性优化设计理论,提出了一个通用的同轴式三级斜式齿圆柱齿轮减速器模糊可靠性优化数学模型,并对实例进行了计算,结果表明具有可行性和实用性。     

圆柱齿轮减速机的概率可靠性优化设计

运用机械可靠性设计理论与机械优化设计理论,提出了一个通用的二级斜齿圆柱齿轮减速机的概率可靠性优化设计数学模型,并对实例进行了计算,所得结果符合实际。     

The influence of operating condition on acoustic emission (AE) generation during meshing of helical and spur gear

The application of high-frequency acoustic emission (AE) technology to condition monitoring of gears is still in its infancy. Understanding the influence of gear operating parameters on the generation of AE is essential in applying the AE technology to gear condition monitoring. This paper presents experimental findings on the influence of speed and load in generating AE for operating helical and spur gears. The experimental findings suggest that any percentage reduction in specific film thickness (λ), a direct consequence of a change in load condition, results in a nine- and four-fold percentage change in AE rms for the spur and helical gear sets, respectively. A numerical model representing changes in AE rms with variation in load and speed under near isothermal conditions for spur and helical gears was also established. In conclusion, it is postulated that the AE technology could offer a means of measuring in situ the effectiveness of a lubricant for operational spur and helical gears thereby establishing if the correct lubricating conditions are present to ensure optimal life usage.     

蜗杆砂轮无差动磨齿原理及其应用

yA7232A 型蜗杆砂轮磨齿机采用电子挂轮技术,磨削斜齿轮时采用无差动形式,具有一定特色,本文从提高磨齿精度出发,重点论述无差动磨齿原理及齿面构形原理,并简述了机床传动系统及概况。首先研究了转动速以及轴线移动速比方程,若要磨出所需要的斜齿轮,必须同时满足上述方程。斜齿轮工件齿是由接触带沿直母线方向铺开形成。进而研究了规则啮合与标准啮合对磨齿精度的影响。经分析指出蜗杆砂轮轴系精度,砂轮螺距精度及机床总传动链精度是影响磨齿精度的主要因素。从而提出改进结构,保证精度的措施,并取得显著效果。目前磨削直齿轮精度可达JB179-81标准四～五级,稳定在五级,斜齿轮精度为六级,可以满足国内建设的需要。     

高速重载齿轮传动的多目标优化设计

讨论了重载齿轮设计中的各种影响因素；分析了斜齿轮和人字齿轮的优缺点，在此基础上将重载齿轮确定为弧齿线圆柱齿轮，并对其建立了以重合度最大、体积和相对滑动率最小为目标的多目标优化数学模型；给出了重载齿轮传动优化设计约束条件，运用多目标优化的乘除法获得了最优解。采用MATLAB软件实现了实例的优化设计目的，提高了机械设计效率和精度。     

斜齿轮三维修形的优化设计

齿向修形和齿廓修形是提高高速重载齿轮传动性能的重要手段。由于斜齿轮传动时齿廓修形和齿向修形的相互干扰作用,传统的齿向修形和齿廓修形的独立设计方法已不能满足斜齿轮的修形要求。作者提出了一种斜齿轮三维修形的优化设计方法,结合了有限元、柔度矩阵和数学规划,达到了均化齿面载荷分布和改善动态性能的综合目标。     

Study of Influence of Lubricating Oil and Tooth Height on Friction Characteristics of Helical Gears

It is of utmost importance to know the friction loss of helical gears because they are produced quite widely used. However, basic research, e. g., load carrying characteristics of helical gears and friction loss, is extremely scarce.

In this paper the authors focused on the influence of the kind of lubricating oil on the friction loss of helical gears. Further they dealt with the influence of height of teeth on friction loss of helical gears. The authors carried out experiments to study the influence of lubricating oil viscosity, additive, and base oil type as well as rotational speed on friction loss of helical gears. Not only mineral oils but also synthetic oils were used as base oils, e. g., paraffin, poly-α-olefin, and polyglycol type oils. As additives the authors used EP additive and ZnDTP. Further they investigated the influence of tooth height on friction loss.

The experimental results gained make it possible to drastically reduce friction loss of helical gears.     

非圆斜齿轮滚切加工CNC联动控制方案

分析了传统滚齿机不宜加工非圆斜齿轮的原因。针对用数控滚齿机滚切加工非圆斜齿轮的动轴线变传动比的复杂运动几何关系，综合运用螺旋齿啮合原理和工具斜齿条法，设计出非圆斜齿轮滚切加工的4种CNC联动控制方案，经推证它们是四坐标联动或五坐标联动。给出了非圆斜齿轮滚切加工CNC联动控制的一般原理图。     

The synthesis of tooth profile shapes and helical gears of high hydraulic performance for rotary type pumpsLa synthèse de la denture du pignion et de la roue ainsi que des engrenages hélicoïdales ce qui ont le rendement hydraulique meilleure que ceux précedement trouvés

In this work a method is presented for the synthesis of high hydraulic performance of non involute helical gears and tooth profiles. Two gear capacity criteria are used in the synthesis: (1) the capacity based on optimal helical advance equal to the circular pitch for which perturbations of delivery speed and torque can be completely eliminated and (2) the capacity based on optimal tooth profile which consists substantially in circular arcs whose centers fall on the pitch point, and whose connecting part consists of a suitable curve which satisfies the condition for continuous contact without intersection of two mating teeth surfaces.The present paper deals with the theoretical basis and the comparison with test results. The tooth profile recommended as a result of this study has permitted size and cost reduction in a currently manufactured line of pumps with delivery pressure to 20 kg/cm².     

量球法测绘窄斜齿轮的研究

把优化方法方法用于斜齿轮的测绘,建立了基于跨球（棒）距为优化目标的函数。通过对待测绘斜齿轮参数的优化分析,表明该方法是可行有效的。该方法不必用仪器测量斜齿轮的螺旋角和公法线长度,测量简单,精度高,可用于各种圆柱齿轮和渐开线花键的测绘。     

轮胎起重机行走部分变速箱的设计

根据轮胎起重机的使用要求,设计了一台起重机行走时使用的变速箱。汽缸通过拨叉控制,齿套分别与双联齿轮联接完成高速挡和低速挡两种输出形式。该变速箱是采用斜齿圆柱齿轮和双联斜齿带内花键的齿数不同螺旋角方向相反的圆柱齿轮输入轴高度变位的形式完成设计的。通过实践,该设计能很好地完成以往使用2台减速器才能完成的任务,并解决了噪音大的难题。