凸轮机构

The dissertation puts forward the base circle's pressure angle method to calculate the instantaneous meshing efficiency of SCM, analyzes the factors affecting instantaneous meshing efficiency and further improves the design theory of SCM.

在对空间凸轮机构进行受力分析的基础上，提出了计算空间凸轮机构瞬时啮合效率的基圆压力角法，分析了影响瞬时啮合效率的因素，进一步完善了空间凸轮机构的设计理论。

In respect to the relationship between cam profile and pressure angles, the design method of cam profile with constant pressure angle was discussed and the cam profile was derived by means of the Euler Formula and the FORTRAN program.

在讨论了凸轮轮廓曲线与压力角的关系的基础上，探讨了等压力角凸轮机构轮廓曲线的设计方法，用改进型的欧拉公式经 FORTRAN编程得出相应的轮廓曲线，并着重分析了凸轮机构中基圆半径、偏距和压力角各参数的变化对凸轮轮廓曲线的影响。

This paper summarizes the domestic and overseas study status and developing direction of cam. On basis of the problem that the idler wheel which is the driven part of the cam machine in CT36-110 spring operating mechanism is destroyed easily, the author get much fact material through inner research, and presents a optimal design imagine of disc cam. Through enough compare and argumentation, this paper presents the optimal design model of the disc cam.

本论文阐述了目前国内外对凸轮的研究状况、发展动态和发展方向，根据云南开关厂CT36-110型弹簧操动机构中盘形凸轮机构的从动件——滚轮易损坏的生产实际，深入调查研究，在掌握大量生产应用实际资料的基础上，提出了对盘彤凸轮进行优化设计的思想，并在充分比较和论证的基础上提出了盘形凸轮的优化数学模型。

The kinematic analysis of a planar cam mechanism can be realiaed by the method that the higher pair is substitute for lower pair, and then it is equivalent to a planar linkage. The main point by the way is how to calculate the radius of curvative of planar cam profile.

对于平面凸轮机构的运动分析可以用高副低代的方法将其转化成平面连杆机构来进行，而高副低代后关键的问题是如何在书籍平面凸轮廓线的基础上求解凸轮的曲率半径。

Some key part is ameliorated to meet the demands of working. This thesis mainly includes:(1) Analysing the working principle of the spring operateing mechanism, expatiating the character of the mechanism;(2) With the design aim of the spring operating mechanism, accomplishing the design of ZW□-12/630-20 outdoor HV vacuum breaker based on the systemic design theory of the spring operating mechanism, which includes spring mechanism of open-close switch; cam mechanism based on the principle of power balance; buckle-off mechanism with force-minished device; ratchet wheel mechanism with number-increased detent;(3) In the design on the spring operating mechanism for the outdoor vacuum breaker, using the air cushion device with speed controller to ensure the steady working of the spring operating mechanism;(4) Accoding the problem of daily maintenance for HV circuitbreaker, giving some effective steps of daily maintenance.

论文工作主要包括以下几个方面：(1)从真空断路器弹簧操动机构的功能原理出发，详细分析了该机构的工作原理，阐述了机构工作的基本特性；(2)根据工程实际提出了真空断路器弹簧操动机构的设计目标，在系统分析弹簧操动机构设计理论的基础上，完成了ZW□-12/630-20型户外真空断路器弹簧操动机构的设计工作，其中包括真空断路器弹簧操动机构的分合闸弹簧机构的设计；以输出力特性曲线设计机构理论演化出的功率平衡原则为基础的凸轮机构的设计；带有减力机构的滚动摩擦扣结方式的脱扣机构设计；根据实际情况增加了棘爪数量的棘轮机构设计；(3)在真空断路器弹簧操动机构的设计中，引入了速度控制模式空气缓冲器，对惯性负载起到了良好的自动缓冲效果，从而保证了真空断路器弹簧操动机构稳定、有效地运行，保证了真空断路器的动作质量；(4)针对目前真空断路器运行过程中存在的问题，提出了有效的日常维护措施。

Considered the factor of damping,a single degree of freedom s dynamic model of the high-speed cam mechanism is established.Choosing the law of sine acceleration motion as the excitation function,a displacement and acceleration dynamic response equations of the main vibration phase and residual vibration phase,the working dynamic response change curve through the inferential reasoning working end movement equation is derived.The result is obtained that different period and damping ratio have different impact

建立了考虑阻尼因素的等效单自由度高速凸轮机构的动力学模型，以正弦加速度运动规律方程为激振函数，推导出了从动件系统主振段和余振段的位移和加速度动态响应方程并绘制出了动态响应变化曲线，得出了不同阻尼比和周期比对主振段和余振段的动态响应，从而为高速凸轮机构的合理设计提供了一定的理论依据。

This paper determines the motion of lower rocker arm in valve gear by the dimension of cam mechanism and derives the characteristics of equivalent cam,assuming that the rocker arm ratio varies according to the camshaft angular displacement while the push rod and both the upper and lower rocker arms are in motion.

本文根据凸轮机构的几何尺寸确定配气机构下摇臂的运动，并且考虑上下摇臂及推杆的运动，将摇臂比看作是随凸轮转角变化的变量，从而导出当量凸轮的运动规律。

Based on the kinematic and geometric relationships between the cam and its roller-follower turret, the eOEects on the output of the cam mechanism owing to clearances in the grooved cam and in the roller bearing, preload between the cam and its turret wheel and the cam taper angle have been investigated.

基于运动学和几何关系与凸轮及滚子的跟随者炮塔， eoeects对输出的凸轮机构由于以清拆行动，在沟槽式凸轮，并在滚子轴承，预紧力之间的凸轮和其炮塔车轮及凸轮锥度进行了调查。

This paper takes account of the several factors including the contour curve of cam,the accuracy of motion, structure size and the time of normal work of cam mechanism by discussing the relationship between the roller radius and contour curve ,the touch-stress between the roller and cam, the thickness of lubricant film.

以凸轮机构的凸轮轮廓曲线、运动的准确性以及结构尺寸和寿命为考虑因素，讨论了凸轮机构从动件滚子的半径与轮廓曲线、凸轮高副的接触应力以及润滑油膜厚度等的关系，提出了滚子半径的选择原则。

In the amplifying design of the Guanghua offset printing machine PZ1740, the software has been applied to the design of the cam mechanisms for the rotary sheet transfer, grippers on-off and pressure on-off etc, and the desired results has been achieved for.

系统总结了印刷机械中凸轮机构的反求设计理论，研制了相应的计算机辅助设计软件，在光华胶印机PZ1740的放大设计中，应用于圆递纸机构、开闭牙机构和离合压机构等的凸轮机构的设计，取得了预期的设计效果，从而验证了理论的正确性和软件的实用性。

Means the parent directory, so this command means to execute "toolchain.sh," which is in the current directory.

代表父目录，所以这个命令就是执行当前目录下的"toolchain.sh"。

Yes,In fact,I'm on our city ream.

是的。事实上我是我们市队的。