查询词典 planetary train

Keywords : compound planetary train;component relative rotational speed diagram;transmission scheme;design method

通过建立多自由度行星变速机构的构件相对转速图，提出了一种多自由度复合行星传动方案设计理论和方法。

The obstacle (the altitude of 900 mm) process for both sides of a planetary gear train was analyzed in ADAMAS. It is proved that the physical dimension of the planetary gear train, bodywork center position and attachment coefficient are the key effect factors. The driven moment, velocity and normal pressure sharply increased as each wheel surmounting obstacles, but they were moderate after the front wheel came over the obstacles. Another weaker pulse occurred when the rear wheel began climbing, and then the parameters reached a plateau.

行星轮系的结构尺寸、车体质心位置及附着系数对越障高度影响较大；各轮系越障时出现驱动力矩、速度和正压力急增的现象，前轮系的前轮越上障碍后，各参数值趋于平稳，后轮越障时又出现瞬时脉动，但脉动较小，后轮系也有相同的变化趋势，各轮的阻力矩和输出功率与正压力变化趋势相同。

When I meet the engine with its train of cars moving off with planetary motion —— or, rather, like a comet, for the beholder knows not if with that velocity and with that direction it will ever revisit this system, since its orbit does not look like a returning curve —— with its steam cloud like a banner streaming behind in golden and silver wreaths, like many a downy cloud which I have seen, high in the heavens, unfolding its masses to the light —— as if this traveling demigod, this cloud-compeller, would ere long take the sunset sky for the livery of his train; when I hear the iron horse make the hills echo with his snort like thunder, shaking the earth with his feet, and breathing fire and smoke from his nostrils（what kind of winged horse or fiery dragon they will put into the new Mythology I don't know）, it seems as if the earth had got a race now worthy to inhabit it.

当我遇见那火车头，带了它的一列车厢，像行星运转似的移动前进，——或者说，像一颗扫帚星，因为既然那轨道不像一个会转回来的曲线，看到它的人也就不知道在这样的速度下，向这个方向驰去的火车，会不会再回到这轨道上来，——水蒸汽像一面旗帜，形成金银色的烟圈飘浮在后面，好像我看到过的高高在天空中的一团团绒毛般的白云，一大块一大块地展开，并放下豪光来，——好像这位旅行着的怪神，吐出了云霞，快要把夕阳映照着的天空作它的列车的号衣；那时我听到铁马吼声如雷，使山谷都响起回声，它的脚步踩得土地震动，它的鼻孔喷着火和黑烟（我不知道在新的神话中，人们会收进怎样的飞马或火龙），看来好像大地终于有了一个配得上住在地球上的新的种族了。

TTPF has been 100 varieties of production to be used synchronizer ring, the cone, pulley of air-condition, ring gear of planetary train etc ...It has achieved net or near forming, and it is preferred production to replace general forging.

TTPF 生产的精密锻件达 100 个品种规格，广泛用于汽车同步器齿套、齿锥、空调皮带轮、行星排齿圈等环形盘类锻件，达到了少无车削加工，是替代普通锻件的首选产品。

This research applies the micro forming process with other mass production techniques to construct the key components of the micro/meso gear transmission. The final prototype is the planetary gear transmission with outer diameter 6mm and gear module less than 0.15mm developing in 3 years. The purposes and developing technologies of this project are as follows: 1. setting up the design and analysis of parts and system; 2. the mold design of gear and planet plate; 3. assembly modules of planetary gear train; 4. inspection of gear profile and gear train; and 5. heat treatment of micro parts.

本研究将以精微成形技术搭配其他量产制程，逐步开发微型减速机内的所有关键零件，预计在3年内最终完成外径≦ψ6mm、齿轮模数m≦0.12mm之的行星式齿轮减速机的开发，研发目标包含有微型传动系统结构/机构与零组件设计分析技术，试量产型精微行星/太阳齿轮、传动盘、环齿轮等原型件模具设计与开发，行星臂、太阳齿轮、行星齿轮与环齿轮等组装模组技术，微型齿轮齿形及相关微型齿轮箱检测技术，以及精微元件热处理技术等关键技术。

Research has been done on the coupling form between the two-row planetary gear train and the shift restriction based on the matrix,and then the method of establishing mathematics model has been presented to analyze the planetary gear transmission using MATLAB.

在设计自动变速器时，总体结构方案主要由行星齿轮变速机构确定，因此，研究行星齿轮机构传动方案的结构特征，对其所有可能的方案进行分析，是理想的设计途径。

Research has been done on the coupling form between the two-row planetary gear train and the shift restriction based on the matrix, and then the method of establishing mathematics model has been presented to analyze the planetary gear transmission using MATLAB. The coupling-matrix, restriction-matrix and transmission matrix form the model. All coupling-matrices corresponding two kinds of the coupling form determine the planetary gear transmission model.

基于矩阵理论对双排行星齿轮变速机构的行星排之间联结、换挡约束进行研究，提出用联结矩阵、约束矩阵和传动矩阵构建数学模型并使用MATLAB进行传动分析的方法。2种方式的联结形式所对应的联结矩阵可以确定机构所有可能的结构型式，据此得到双排行星齿轮变速机构全部型式谱图。

It was researched into the coupling form between three-row planetary gear train and shift restriction based on the matrix, and then the method of establishing mathematics model was presented for to analyze the planetary gear transmission by using MATLAB.

基于矩阵理论对行星齿轮变速机构的行星排之间联结、换档约束进行研究，提出用联结矩阵的组合形式建立三排行星机构传动型谱的概念，分析其所有可能的传动结构型式。

It was researched into the coupling form between three-row planetary gear train and shift restriction based on the matrix, and then the method of establishing mathematics model was presented for to analyze the planetary gear transmission by using MATLAB.

摘要基于矩阵理论对行星齿轮变速机构的行星排之间联结、换档约束进行研究，提出用联结矩阵的组合形式建立三排行星机构传动型谱的概念，分析其所有可能的传动结构型式。

By each gear wheel system is a fixed geometric axis is divided into a fixed axis and the epicyclic gear train, epicyclic gear train again planetary gear train and differential gear train.

按轮系中各齿轮的几何轴线是否固定分为定轴轮系和周转轮系，周转轮系又有行星轮系和差动轮系。

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。