传动比

In order to exploring the comprehensive methods of plan of transmission of four planetary line gearbox,this paper theoretically integrated the planetary transmission schemes by applying topological diagram s,and studied the comprehensive method of the transmission scheme topological diagram s of four planets.

为了探讨四档位行星变速箱传动方案综合方法，应用图论理论综合行星齿轮变速箱传动方案，研究了4个行星排变速箱传动方案拓扑图综合方法，该方法通过4个行星排拓扑图中基本构件的不同方式的相互结合，能综合出不同的变速箱传动方案；推导了依据给定的变速箱外传动比，计算了每个行星排内传动比的表达式，并编写了计算机辅助综合变速箱传动方案软件。

The relationship between unit amount of feed and transmission ratio of planetary gear train was analyzed.

针对多头多刀锁盖机构，详细讨论了多刀锁盖机构的行星轮系传动比等参数对锁盖质量的影响，分析了传动比与进给量的关系。

The total transmission ratio, the relationship between basic transmission ratio and closed transmission ratio and their influences on efficiency were studied on the H typed closed epicyclic train, and the expression of boundary region of basic transmission ratio under conditions of satisfying the allowable efficiency was gained and the boundary curve was drawn.

研究了H封闭式周转轮系总传动比、基础传动比与封闭传动比之间的关系及其对效率的影响，得到了在满足许用效率的条件下基础传动比边界区域表达式，绘出了边界曲线。

Derives the formulae for calculating the distortion and stress on the acting surface of flexspline load in the drive process of the harmonic gear drive with three-wave wavegenerator;(2) analyzes and compares the performance of plastic and steel products under light load drive and calculates the probably reached limit of drive ratio for both types of flexsplines under the same load;(3) applies the harmonic gear drive with three-wave wavegenerator to the small-sized multiple-revolution electric device of valves by taking into consideration of the low limit of the drive ratio for the harmonic gear drive with three-wave wavegenerator made of plastics, improves the design on the main drive mechanism of the traditional small-sized multiple-revolution electric device of valves, and validates through examples the feasibility for the harmonic gear drive with three-wave wavegenerator made of plastics to be applied to the small-sized multiple-revolution electric device of valves. Finally the author performs calculations on the two types of the flexsplines of the harmonic gear with three-wave wavegenerator by using the finite element method and analyzes the causes for the errors.

本文根据三波谐波齿轮传动的运动变形特点，采用弹性薄壳的力矩理论，推导了三波谐波齿轮传动柔轮载荷作用面上的变形及应力计算公式；分析比较了轻载传动情况下塑料和钢材的性能，计算了塑料制谐波柔轮和钢制谐波柔轮在相同载荷情况下可能达到的传动比极限；对塑料制及钢制三波谐波齿轮柔轮进行了有限元计算，分析了产生误差的原因；针对三波塑料谐波齿轮传动比极限低的特点，将之运用于小转矩多回转阀门电动装置中，对传统的小型多回转阀门电动装置的主传动机构进行了改良设计，并通过实例验证了三波塑料谐波齿轮传动在小转矩多回转阀门电动装置中应用的可行性。

Especially in designing the planetary transmission with high transmitting ratio , the calculation of this ratio is critical.

特别在设计大传动比闭式行星传动时，其传动比计算公式更是重要的理论基础。

Its corresponding calculation program was developed, and used to study actual change of transmission ratio during meshing process.

提出了数控加工的摆轮与针轮啮合过程实际传动比和齿侧间隙的计算方法，开发了相应的计算程序，用此程序进一步研究了啮合过程中传动比的变化规律，得出了啮合过程中传动比波动较大及步长与平均传动比不是单调关系的结论。

The system uses an electric motor to vary the angle of turn-in, increasing or decreasing it depending on the speed.

这种装置使用电动机调节方向盘转向传动比，并且根据汽车行驶速度增大或者减小方向盘转向传动比。

So the reasonable transmission ratio is 0.5 or 1 from the turnplate to the eccentric axis.

不同的传动比时磨迹长度相差很大，因此在进行磨削对比试验时要固定传动比，即固定摆臂的摆频。

Because on the turnplate axis power is by the turnplate under after the bevel gear commutation, decelerates transmits, moreover their velocity ratio is 6, also because the bevel gear velocity ratio is not bigger than 3 generally, therefore has designed two axes, by realizes the bevel gear two commutation, decelerates.

因为转台上的轴动力是由转台下经锥齿轮换向、减速传来的，而且它们的传动比为6，又因为锥齿轮的传动比一般不大于3，所以多设计了两根轴，以实现锥齿轮的两次换向、减速。

According to the fact that a universal coupling was constant ly broken in a mine, the paper gave a common formula of the drive rate of a bi universal coupling on the basis of other people s work, and thus a universal conclusion was obtained that the drive rate can be kept constan

本文根据某矿山万向节频繁扭断事故的实例，在文献 [1]、 [2 ]的基础上，导出了双万向联轴节传动比的普遍公式，并得出了保持传动比恒定的普遍性结论。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷