曲柄

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

旋转周期为曲柄二整周的平面双曲柄四杆机构。

Generally drilling pump's power transmission is conducted by crank-connecting rod which is working with variable movement under high pressure and has complex force at work.

钻井泵的动力传递一般都由对心式曲柄连杆机构实现，曲柄连杆机构在高压条件下做变速运动，受力极其复杂。

For the optimization of mechanism design of rolling cut shears, a CAD software of rolling cut shears was developed and was used for the analysis of the factors such as crank radius, link rod length, phase difference, center distance of cranks and the offset position of upper blade carriage, which influenced the cutting quality, strength parameters and the load of main parts.

为了实现滚切剪机构设计的最优化，开发了滚切剪计算机辅助设计软件，利用该软件对影响滚切剪剪切质量、力能参数以及主要杆件受力的曲柄半径、连杆长度、相位差、曲柄中心距以及上刀架偏移量等因素进行了分析研究。

Two of our wheels are driven by rotating power system to made the cylinder rotate . The swinging rack is driven by a set of crankshaft swinging bar which is mounted on the frame and the swinging rack is supported on the frame.

在四个支撑滚轮中，其中两个传动轮由转动动力系统拖动使转筒产生转动；摆动架由一组曲柄摆杆机构来驱动，曲柄摆杆机构装在机架上，摆动架由轴承组件支撑在机架上。

The power of motor is positive proportion to square root of equality of square pure torque .the pure torque is combined by suspension point torque and balancing weight torque ,so the change of suspension point's motion law and balancing weight offset angle can causes pure torque variation .especially, the suspension motion law is decided by configuration curve of hinder heaven sheave .so the paper has emphatically studied and analysis the law that the configuration curve of hinder heaven sheave brings the change of pumping unit energy-saving .

电机功率与减速器曲柄轴净扭矩均方根成正比，减速器曲柄轴净扭矩是由悬点载荷产生的扭矩和平衡重产生的平衡力矩合成的；改变悬点运动规律和平衡重的滞后角可以引起净扭矩的变化，其中悬点运动规律是由后天轮曲线决定的，因此，本文依据此原理着重研究分析了后天轮曲线影响抽油及节能的变化规律。

Each leg is the familiar slider crank where the crank is extended to form the leg as shown.

每一站是在熟悉的滑块曲柄曲柄扩展，形成如图所示腿。

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.

但是就本研究而言，我们将提出单独应用于立柱构造的PRBM分析结果，一种在这里由延伸曲柄形成的立柱的简单的滑块曲柄。

Second, oil does not come into contact with the compressed gas external drive mechanism, such as in reciprocating compressor crankcase parts, crank pin, crank bearings, connecting rod slide, slide, crosshead; and speed rotary compressor bearings , gear and other growth.

其二为油不与压缩气体接触的外部传动机构，如往复式压缩机曲轴箱中零件、曲柄销、曲柄轴承、连杆滑块、滑道、十字头；回转式和速度式压缩机的轴承、增速齿轮等。

The conditions for the existence of crank for Watt's mechanism, a basic type of one-degree-of-freedom planar six-bar mechanism,are investigated with the triangular dividing method and the method of instantaneous fixing of the driving bar.

本文采用平面杆机构的三角形划分法及主动杆瞬时凝结法探讨了单自由度平面六杆机构的一种基本型式——Watt型机构的曲柄存在条件；并用取极限的方法得到了其诱导机构的曲柄存在条件。

The necessary condition for the existence of double crank of five - bar linkage with two degree of freedoms is derived on the basis of assembling conditions.

根据格拉肖夫定理推导出二自由度五杆机构的双曲柄存在充分条件；根据装配条件推导了二自由度五杆机构的双曲柄存在的必要条件

If you are unfortunate enough to the lovelorn, please tell me, I will help you out, really, please contact me!

如果你不幸失恋了，请告诉我，我会帮助你摆脱困境，真的，请联系我啦！

China's plan to cut energy intensity by 20 percent and pollutant discharges by 10 percent between 2006 and 2010 is a case in point.

中国计划在2006年到2010间降低20%的能源强度和减少10%的主要污染物排放，就是一个这样的例子。