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| 连栋玻璃温室轨道式气动天窗机构设计与运动分析 | |
| 引用本文： | 刘淑珍,何勇,张玉宝,苗香雯,崔绍荣. 连栋玻璃温室轨道式气动天窗机构设计与运动分析[J]. 浙江大学学报(工学版), 2006, 40(5): 883-887 |
| 作者姓名： | 刘淑珍 何勇 张玉宝 苗香雯 崔绍荣 |
| 作者单位： | 刘淑珍1，2，何勇1，张玉宝3，苗香雯1，崔绍荣1(1.浙江大学 生物系统工程与食品科学学 院，浙江 杭州 310029；2.宁波工程学院 机械工程学院，浙江 宁波 315016；3.浙江纺织服装职业技术 学院 机电与信息工程学院，浙江 宁波 315211) |
| 摘 要： | 为克服传统齿轮齿条天窗机构存在的诸如响应慢等弊端，设计了一种连栋玻璃温室轨道式气动天 窗机构.应用美国温室设计标准，对天窗荷载进行了计算，并通过机构运动学和联立约束法动力学仿真, 分析了天窗开度、气缸负载以及推杆受力与气缸活塞行程之间的关系，从而确定气缸行程和活塞直径.分 析表明，对于结构尺寸一定的连栋玻璃温室，轨道式气动天窗机构存在最大开启角度，并且开启天窗所 需气缸输出推力主要受连杆对横向推杆水平方向分力的影响，而摩擦力的影响很小.选配气缸运行效果仿 真表明，与传统齿轮齿条机构相比，气动天窗机构响应速度快、安装方便，有利于提高天窗开度. |
| 关 键 词： | 玻璃温室 气动天窗机构 轨道 运动分析 动力学分析 |
| 文章编号： | 1008-973X（2006）05-0883-05 |
| 收稿时间： | 2004-10-21 |
| 修稿时间： | 2004-10-21 |
Design and kinematic analysis for track-type pneumatic roof-vent opener of multi-span glass greenhouse |
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| LIU Shu-zhen,HE Yong,ZHANG Yu-bao,MIAO Xiang-wen,CUI Shao-rong. Design and kinematic analysis for track-type pneumatic roof-vent opener of multi-span glass greenhouse[J]. Journal of Zhejiang University(Engineering Science), 2006, 40(5): 883-887 | |
| Authors: | LIU Shu-zhen HE Yong ZHANG Yu-bao MIAO Xiang-wen CUI Shao-rong |
| Affiliation: | 1. College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310029, China;2. College of Mechanical Engineering, Ningbo University of Technology, Zhejiang Ningbo 315016, China; 3. College of Mechanical and In f ormationEngineering , Zhejiang Textile and Fashion Vocational Technology College, Ningbo 315211, China |
| Abstract: | An track-type pneumatic roof-vent opener for multi-span glass greenhouse was proposed and developed to avoid the slow response, of traditional gear-rack mechanism driven by electricity. Load of roof vents was calculated based on the greenhouse design standard of USA. Relationship of roof-vent opening, output force of cylinder and forces imposing on push rod with displacement of piston were analyzed by kinetic and kinematic dynamic simulation. The cylinder stroke and piston diameter were determined on the basis of analysis and calculation. Results indicated that there exists a maximal opening as for a specific pneumatic roof vent opener; required thrust of the cylinder is markedly influenced by the horizontal force between link rod and push rod, whereas friction influence is much smaller. The present opener is faster in response, more conveniently located and larger opening as compared with the traditional one. |
| Keywords: | glass greenhouse pneumatic roof-vent opener track kinematic analysis kinetic analysis |
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