齿轮

In addition ,the thesis deals with amount of components devices and calculations ,including :(1) Choice of the main shaft and disposal of transmission , by doing so to ensure the accuracy of components machining in process when the main shaft rotating;(2)The device and check of the transmission shaft ,so it can assure the rigidity of the shaft is allowable ;(3) Gear device and calculations ,check the performance in the strength and rigidity of it ;headstock is a very important part in this thesis ,the design of it here not only ensures the rationality 、equipoise and stability of the motion of the slipway ,but also satisfies the requirements of different work environment .

液压装置的设计液压滑台、定位夹紧装置均为液压控制。并采用了许多液压控制阀，保证了运动的平衡性，循环性和精确性。另外，本文还涉及到大量的设计和计算，包括：（1）、主轴的选择和传动布置，以保证加工过程中被加工零件的精度；（2）、传动轴的设计和校核，以保证轴的刚度；（3）、齿轮的设计、计算，对齿轮的强度和刚度进行校核；多轴箱部分是本次设计的重要环节，本次设计中它的设计既要保证工作台的运动的合理、平衡和准确，又要满足工作要求。

In this study, a gear fault diagnosis method is investigated based on wavelet analysis and modified exponential distribution technique.

齿轮故障诊断的关键是从齿轮故障振动信号中提取故障特征，信号分析和处理是特征提取最常用的方法。

Face gear drive has many unique advantages as a new type gear drive, especially in high-power and high-speed applications.

面齿轮传动是一种新型齿轮传动，它有许多独特的优点，尤其是在高速重载的场合。

1The structure and the transmission theory of end face harmonic gear drive of oscillating teeth are introduced, and the structure models which could be used are also designed in this paper.

本文主要进行了如下一些基础性的理论研究工作：（1）提出了活齿端面谐波齿轮传动装置的结构和传动原理；设计了各种可能用到的活齿端面谐波齿轮传动装置的结构型式。

The end face harmonic gear drive of oscillating teeth was a new type of the spatial oscillating teeth transmission.

活齿端面谐波齿轮是一种新型的传动机构，可以在保留现有谐波齿轮传动所有优点的基础上，大幅度地提高所传递的功率。

To accelerate the development of the face gear drive, the load tooth contact analysis of the face gear diver is considered.

为了促进高性能面齿轮传动技术的发展，对点接触面齿轮传动进行承载接触分析。

The new approach of design of high contact ratio of face gear drive with good dynamic performance are based on application of profile crowning for both tooth surfaces and longitudinal crowning for helical pinion surface.

这一新办法的设计的联系比面对齿轮传动具有良好的动态性能的基础上的应用简介加冕为齿面和纵向加冕螺旋齿轮表面。

It is helpful for the basically theoretical researches and the design of end face harmonic gear drive of oscillating teeth. And it has a definite application expectation and economic value.

关于活齿端面谐波齿轮啮合副的齿面方程及其修形的理论研究，奠定了活齿端面谐波齿轮减速器设计的理论基础，为这种新型传动装置的推广应用铺平了道路。

Unfortunately, the heat treatment process usually produces distortion of the gear, with the result that gear load is not uniformly distributed across the gear tooth face.

不幸的是，热处理过程通常会使齿轮发生扭曲和形变，这样齿轮上的载荷就不能均匀的分布到轮齿的表面。

The drawback with GB3480-83 Methods for the calculation of load capacity of involute cylindrical gears equivalent to ISO/DP6336/Ⅰ∽Ⅲ-1980 is also pointed out: when taking into account lubricating state of gear surface influence on loading capacity of gear surface, In the above it is study on based EHL, and is ignored that in the state of boundary lubricating, as well as favorableness conditions in gear surface conjugate meshing, the active atom resolved from the additive permeates the surface and forms the modifying layer totally different from its basic structure, elements and function and thus greatly raises the loading capacity of gear surface.

也指出了等效于ISO/DP6336/Ⅰ∽Ⅲ-1980的《GB3480-83渐开线圆柱齿轮承载能力计算方法》的缺陷：在考虑齿面间润滑状态对齿面接触强度承载能力影响时，是以弹性流体动力润滑理论为讨论问题的基础，未考虑边界润滑状态下，非活性润滑油抗磨添加剂在啮合过程中，由于各种有利因素会分解出活性原子，渗进齿轮表面，形成表面改性层，极大的提高了其承载能力。

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。