传动比

It is an important but difficult job to compute the transmission ratio and the meshing efficiency of epicyclic gear trains.

周转轮系传动比与啮合效率(只考虑轮齿啮合摩擦损失)的计算方法卜3 J较多，但都比较沉繁。

Several methods, which can be used to determine the type of power stream in the gear trains and the selflock condition of closed epicyclic gear trains, are figured out.

有关封闭周转轮系的自锁条件和传动比选择范围同样适用于一般差动轮系。

Address the characteristics of non-uniform speed transmission, position function control and transmission ratio function control were presented to realize electronic gearbox. The differences between position function curve interpolation and general NC interpolation were analyzed. Considering the effect of uncontrollable continuous principal motion, interpolation slope and position function precompensation interpolation were presented. The relationship among interpolation, servo dynamic response and transmission precision was studied. The coordinate linkage relationship and electronic gearbox scheme in noncirclar gear hobbing were studied.

对电子齿轮箱实现非匀速比传动进行了研究，提出了位置函数控制与传动比函数控制两种非匀速比传动关系的实现方法；对位置函数控制方式，分析了位置函数曲线的插补与普通数控插补方法的区别，提出了插补斜率的概念与位置函数曲线的预补偿插补方法；对非匀速比电子齿轮箱传动精度进行研究，得出了插补精度、伺服系统动态性能指标与传动精度之间的关系；研究了非圆滚齿加工坐标联动的非匀速比传动关系，列出了多种可以满足要求的电子齿轮箱传动方案。4。

The use of CVT is curbed because of its low capacity.

而无级变速器由于其传动比的连续变化和较高的工作效率受到人们的关注。

However, because of the differences of the transmission ratio and speed, the author enlarges the planet gear, solar gear, thickness of the inner circle ring as well as the enclasping radius of the enclasping brake through the mechanical design and calculation.

在设计过程没有改变原有的升降机零部件的位置关系，但由于，传动比以及传动速度的不同，所以，通过受力分析计算，加大了行星齿轮、中心齿轮、内齿圈的厚度；同时也加大了抱闸抱紧时的抱紧半径。

In this article , instead of changing the ubiety among the parts of the original elevator , the author keeps on using the original structure. However, because of the differences of the transmission ratio and speed, the author enlarges the planet gear, solar gear , thickness of the inner circle ring as well as the enclasping radius of the enclasping brake through the mechanical design and calculation .

在设计过程没有改变原有的升降机零部件〖需要本套毕业设计请联系QQ：809940198〗的位置关系，但由于，传动比以及传动速度的不同，所以，通过受力分析计算，加大了行星齿轮、中心齿轮、内齿圈的厚度；同时也加大了抱闸抱紧时的抱紧半径。

When R doesn't change, the influence of a/R is obvious in stator, and the influences of R/r and i〓 which is speed ratio between stator and planet gear in coordinate system fixed on arm is obvious in worm gear.

在R一定的情况下，定子中载荷最显著的影响因素是参数a/R；而蜗杆中载荷最显著的影响因素是在转化机构中定子与行星轮之间的传动比i〓。

The traditional pin-cycloid planetary drive has a series of essential advantages such as small volume, light weight, wide range of speed ratio, high efficiency, and quiet operating as well. On the other hand, it has a natural weak point that the tumbler bearing, which supports the cycloidal gear on the arm is placed inside the cycloidal gear, therefore the size of the bearing is restricted due to the geometry of the gear.

摆线针轮行星传动具有体积小，重量轻，传动比范围大，传动效率高，传动平稳且可靠等一系列优点，但它也有一薄弱环节，即转臂轴承处于摆线轮上输出机构的内部，径向尺寸受到限制，从而限制了摆线针轮行星传动更充分地发挥其承载能力。

Air wrench operation speeds up cycle time on high gear ratio bevel gears however, the mechanical advantage available from bevel gearing enables the operator to damage the valve.

气动扳手操作加快了高齿轮传动比伞齿轮装置的循环速度，但是，其伞齿轮的机械增益使得操作者可能对阀门造成破坏。

In this paper, the relation between differential driven ratio accuracy and the common normal length error of cylindrical bevel wheel has been found by experimental method, which provides a efficient way for cylindrical bevel wheel manufacturer to control the common normal length error of the wheel.

通过实验研究，寻找出差动传动比的精度与斜齿圆柱齿轮的公法线长度误差的关系，从而为斜齿圆柱齿轮的加工提供一个可以控制斜齿圆柱齿轮公发线长度误差的有效方法

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