曲柄的

Depending on whether the input or output link can make fully rotation, the types can be drag link, crank-rocker, rocker-crank, double-rocker, or unassembled.

上述类型主要依连杆机构的输入杆及输出杆是否可完全旋转，共有牵杆、曲柄摇杆、摇杆曲柄、双摇杆及无法组合等五种。

By making use of contraction mapping principle and similar matrices and graphical method ,this paper discusses some methods of asking its limit in accordance with recurrent sequence of number.3. The criteria whether Ⅰ,Ⅱ,Ⅲ types of crank-rocker mechanisms exist are given and the graphical method of synthesizing crank-rocker mechanisms with quick return characteristics are proposed.

针对目前具有急回特性的曲柄摇杆机构综合中存在的不足，对这类机构的图解法综合进行了深入的探讨，得到了行程速比系数和摇杆摆角取不同值时，Ⅰ型、Ⅱ型、Ⅲ型曲柄摇杆机构是否有解的判据，并给出用图解法综合具有急回特性的曲柄摇杆机构的方法。

A method to develop a reciprocating translation with uniform moving velocity was provided.

在某些机床中，往复运动基本上是用曲柄摇杆机构或曲柄导杆来实现的。

Based on the simulation data, the effects of clearances, damping coefficient and the rotation speed on the dynamic behaviors are studied: compared with ideal mechanisms, mechanisms with clearances are less stable; as for mechanisms with clearances, when the crank rotates at the speed of 100rad/s, the actual clearances are always above the radium of clearances, axle pin and axle cover keep contact throught the rotation; when the crank rotates at the speed of 20rad/s, mechanisms are in an unstable state, at an angle of about 300, the actual clearances are below the radium of clearances, pairs lose contact, which results in collision between them; with the speed of 20rad/s, when damping coefficient is assumed 175Ns/m, distinct separation and collision happen between pairs; when damping coefficient is assumed 220Ns/m, separation and collision are controlled.

在含间隙机构中，当曲柄以100rad/s转动时，运动副间隙始终大於半径间隙，轴销与轴套始终保持连续接触；当曲柄以低速20rad/s转动时，系统处於极不稳定的震荡状态，在转至300°左右时，运动副间隙小於半径间隙，脱离接触，发生明显的分离碰撞现象。在含间隙机构中，曲柄以低速20rad/s转动，当取法向阻尼系数为175Ns/m时，副元素发生明显的分离碰撞现象；当取法向阻尼系数为220Ns/m时控制了副元素的分离，副元素一直处於连续接触状态。

In the arm of a crank to which a reciprocating member or connecting ''.

曲柄栓一种在曲柄上用以连接往复式发动机部件或连杆的长''。

A crank arm connected to said operating crank is connected to and moved by a linearly movable operating shaft.

作直线运动的操作轴与曲柄连接，并驱动该曲柄。

Planar four bar linkages with double crank rotating the driving crank two tums in a period of motion .

旋转周期为曲柄二整周的平面双曲柄四杆机构。

Theory basis provided to solve the problem of vibrationof the universl coupling of three-crank type and to increase the transmission of the universalcoupling of three-crank type.

由于三曲柄式万向联轴器的输人构件上各曲柄杆的轴线分别与输出构件上相应的导向滚道槽轴线相交，所以可根据其相交条件分析其运动关系。图1和图2分别表示三个曲柄杆及三条导向滚道槽轴线在图中所建立的坐标系中的位置tl。

For this study, however, we will present the results of a PRBM analysis applied to the leg structure alone, a simple slider crank where the leg is formed by extending the crank.

对于这项研究中，但是，我们将提出一个PRBM分析结果适用于单结构的腿，一个简单的曲柄滑块在适用于单结构的腿，一个简单的曲柄滑块在腿是由延长曲柄。

Using the slider crank as a building block, we have carried out the equilibrium analysis of the entire structure. For this study, however, we will present the results of a PRBM analysis applied to the leg structure alone, a simple slider crank where the leg is formed by extending the crank.

用滑动曲柄作为结构元件，我们解决了对整个系统的静态平衡分析，然而，对于这项研究，我们要介绍和独立的腿部相关的结构PRBM的分析结果，这部分也就是一个由延长了的曲柄构成的腿的滑动曲柄。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。