铰链点可互换的近似直线机构综合方法及解域研究

中国机械工程

铰链点可互换的近似直线机构综合方法及解域研究

尹来容1,2;黄娟3;胡林1;刘鑫1;张志勇1

1.长沙理工大学,长沙,410114
2.湖南省工程车辆轻量化与可靠性技术重点实验室,长沙,410114
3.湖南农业大学东方科技学院,长沙,410012

出版日期:2016-12-25 发布日期:2016-12-28
基金资助:
国家自然科学基金资助项目（51305047）；湖南省科技计划资助重点项目（2015GK3020）；湖南省重点实验室开放基金资助项目（KF1505）

Study on Synthesis Method and Solution-region of Approximate Straight-line Linkage with Two Inter-convertible Pivots

Yin Lairong1,2;Huang Juan3;Hu Lin1;Liu Xin1;Zhang Zhiyong1

1. Changsha University of Science and Technology, Changsha, 410114
2.Hunan Key Laboratory of Lightweight and Reliability Technology for Engineering Vehicle, Changsha, 410114
3.Orient Science and Technology College, Hunan Agriculture University, Changsha, 410012

Online:2016-12-25 Published:2016-12-28
Supported by:

摘要/Abstract

摘要： 基于拐点圆极点理论，给出了一种可以综合出无穷多铰链四杆近似直线机构的方法。用解析法证明了该方法综合出近似直线机构的一个连架杆的固定铰链点和对应动铰链点可以互换，铰链点互换前后得到的两个机构具有相同的鲍尔点和直线方向，另外一个连架杆不变。推导了综合曲柄摇杆直线机构的公式，并绘制了曲柄摇杆机构解域图。计算示例表明该方法简单有效，能迅速综合出曲柄摇杆直线机构，且综合出的机构动铰链点和固定铰链点可互换。所得到的近似直线机构为实际工程应用提供了更多选择。

关键词: 直线机构, 拐点圆, 圆点曲线, 机构综合

Abstract: A synthesis method of four-bar approximate straight-line mechanism was presented based on inflection circle pole theorem, which might produce an infinite number of mechanisms. An analytic method was introduced to prove that the synthesized mechanism might make the fixed pivot of side link and its corresponding moving pivot inter-convertible. The two synthesized linkages with two inter-convertible pivots contained the same Ball point and straight-line direction. The other side link remained unchanged. The synthesizing formulas of crank-rock mechanism were derived and the solution domains were plotted. The given examples show that the method is simple and efficient to synthesize crank-rock mechanism, and the synthesized mechanisms have two inter-convertible pivots. This approximate straight-line linkage may provide more choices for practical engineering applications.

Key words: straight-line linkage, inflection circle, circle point curve, mechanism synthesis

中图分类号:

TH112.1

尹来容, 黄娟, 胡林, 刘鑫, 张志勇 . 铰链点可互换的近似直线机构综合方法及解域研究[J]. 中国机械工程.

Yin Lairong, Huang Juan, Hu Lin, Liu Xin, Zhang Zhiyong. Study on Synthesis Method and Solution-region of Approximate Straight-line Linkage with Two Inter-convertible Pivots[J]. China Mechanical Engineering.

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