齿轮

A Planetary gear set consists of a sun gear, planet gears, and a internal ring.

行星齿轮一套包括一个太阳齿轮，行星齿轮和内部环。

In order to solve finish machining problem of spherical gear,a precision grinding process based on generative method has been designed by using the mesh motion between the spherical gear and the plate grinding wheel .

为了解决球齿轮的精加工问题，设计了在范成法加工条件下利用球齿轮与盘形砂轮的啮合运动来加工球齿轮的精密磨削加工方案。

Gear teeth in the stem and filth, affect printing plate drum gear and nano-imprint lithography drum within the normal range of meshing gears, which led to a guestion or multi-steps.

齿轮的齿洋有潮不朱及脏物，感化印版滚筒齿轮与压印滚筒齿轮的变态的啮合，引起一道或多道条痕。

After gear shaving cutter profile correction,the smooth and steady of the run of the toothed gear changes obviously,at the same time, gear shaving cutter profile correction reduces noises and improves the bearing capacity of the toothed gear and makes its life long.

通过对剃齿刀的修形，剃齿后明显改变了齿轮运转的平稳性，降低了齿轮的噪音和振动，提高了承载能力，延长了齿轮的使用寿

To make the transition curve in the process of gear modeling be more reasonable, the parameterized 3D model of involute cylindrical spur gears with whole profile was made with Pro/Engineer software, based on the study of equations of the dual-arc rack cutter＇ s profile curves and the cut gear＇ s tooth profile curves.

为了使齿轮建模时过渡曲线部分更符合工程实际，在对双圆弧齿条型刀具轮廓曲线方程和齿轮的廊线方程研究的基础上，利用Pro/Engineer软件建立了可变位的渐开线完整齿廊直齿圆柱齿轮的三维参数化模型，并对齿廊曲线连续性进行了分析。

The safety factor of resisting pitting of gear box of wind power ≥1.2 by GL criterion requirement, the factor of resisting bending of gear root ≥1.5; the parameter of design of the gear box of Goldwind(750) is SH＞1.45,SF＞1.7,which guarantees the reliability of gear working at beginning.

GL规范要求风电齿轮箱的轮齿抗点蚀安全系数SH≥1.2，齿根抗弯系数SF≥1.5；金风750kW机组齿轮箱的设计参数为SH＞1.45，SH＞1.7，从根本上保证了齿轮工作的可靠性。

ABSTRACT Gear transmission system is one of the most important power and transmission forms for machinery and mechanical equipment.

齿轮系统是各种机器和机械装备中应用最为广泛的动力和传动形式之一，随着高速、重载齿轮传动的发展，对其动态特性的要求在不断提高，更为准确地预测齿轮系统的动力学特性就变得越来越重要。

The research of the generation of FG is made by the derivation of the equations of FG tooth, contact lines on tooth in processing, plane of action and fillet surface, and by the visualization of contact lines, FG tooth surface and fillet surface.

在面齿轮齿面生成的研究中，推导了面齿轮的齿面方程、加工中的齿面接触线方程、啮合面方程和过渡曲面方程；对齿面接触线、面齿轮的齿面和过渡曲面进行了可视化。

A feasible analysis of the higher scoring load capacity can be obtained from choosing the adequate correction factor, according to their opti- mization curves with increasing tool angle.

比较了所试各类齿轮的动力性能，从而为按优化曲线选择变位系数的齿轮或同时增大刀具角的齿轮具有更高的胶合承载能力提供了较充分的依据和可行性分析。

On the contrary, the teeth profile of elliptical gear should be generated when spur gear is replaced by pinion cutter and the elliptical gear is replaced by elliptical blank.

按反求设计的观点，将椭圆齿轮换成椭圆齿坯，将直齿圆柱齿轮换成插齿刀，则可以对椭圆齿轮进行插齿加工。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。