基于Matlab的一种凸轮机构许用压力角精确确定方法
陈勇亮，郭维昭
（江西工业工程职业技术学院，江西 萍乡 337000）
摘要：在凸轮机构设计时，合理的许用压力角能保证凸轮机构良好的结构性能和运动特性。传统许用压力角是根据经验确定，没有考虑摩擦对压力角的影响。考虑凸轮与推杆、推杆与机架间的摩擦将能更加精确地确定许用压力角大小。以不发生自锁为极限，建立了考虑摩擦的许用压力角确定公式。并且利用反转法原理、再次反转原理，将压力角的计算转化为斜率与二维变换矩阵问题，得出了最大压力角的矩阵模型。最后利用Matlab将给定初始条件的凸轮机构仿真出最大压力角位置及最大压力角值。
关键词：凸轮；许用压力角；最大压力角；Matlab
中图分类号：TH112.2 文献标志码：A doi：10.3969/j.issn.1006-0316.2017.09.008
文章编号：1006－0316 (2017) 09－0031－03
A Determine the Allowable Pressure Angle More Accurately Method for Cam Mechanism Based on Matlab
CHEN Yongliang，GUO Weizhao
( Jiangxi Vocational College of Industry & Engineering, Pingxiang 337000, China )
Abstract：In the cam mechanism design, reasonable usage of allowable pressure angle would ensure cam mechanism of good structural performance and movement characteristics. The traditional allowable pressure angle is determined empirically and does not take into account the effect of friction on the pressure angle. Considering the friction between cam and push rod, push rod and racks will help to determine the allowable pressure angle more accurately. In this paper, a formula for determining the allowable pressure angle considering the friction and self-locking, and a matrix model for maximum pressure angle was established. The pressure angle calculation was converted to the slope and the two dimensional transformation matrix problem, using principle of reversal process、principle of reversal process again. Finally we use Matlab to simulate position and value of the maximum pressure angle of cam mechanism given initial condition.
Key words：cam；allowable pressure angle；maximum pressure angle；Matlab
———————————————
收稿日期：2016－12－19
作者简介：陈勇亮（1984－），男，山西文水人，硕士，讲师，主要从事机电类专业教学和包装机械设计工作；郭维昭（1972－），女，辽宁铁岭人，本科，副教授，主要从事机电类专业教学和科研工作。
- 上一篇：基于STM32的智能赛车S3的程序设计
- 下一篇：金属波纹管平衡直径计算方法研究
设为首页 | 加入收藏 | 免责条款
《机械》杂志版权所有 Copyright©2008-2012 Jixiezazhi.com All Rights Reserved
电话：028-85925070 传真：028-85925073 E-mail：jixie@vip.163.com
地址：四川省成都锦江工业开发区墨香路48号 邮编：610063
Powered by PageAdmin CMS