[1]祖莉,梁医,王华坤.商用乘骑式割草车刀盘的模拟与改进[J].南京理工大学学报(自然科学版),2011,(06):832-836.
 ZU Li,LIANG Yi,WANG Hua-kun.Simulation and Improvement of Commercial Riding Lawn-mower’s Deck[J].Journal of Nanjing University of Science and Technology,2011,(06):832-836.
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商用乘骑式割草车刀盘的模拟与改进
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《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
期数:
2011年06期
页码:
832-836
栏目:
出版日期:
2011-12-31

文章信息/Info

Title:
Simulation and Improvement of Commercial Riding Lawn-mower’s Deck
作者:
祖莉梁医王华坤
南京理工大学机械工程学院,江苏南京210094
Author(s):
ZU LiLIANG YiWANG Hua-kun
School of Mechanical Engineering,NUST,Nanjing 210094,China
关键词:
割草车 刀盘 有限元模拟 动态响应分析
Keywords:
lawn-mowers decks finite element simulation dynamic response analysis
分类号:
TH122
摘要:
为提高商用乘骑式草坪割草车的性能,对具有单刀盘三刀结构的刀盘进行了改进。建 立刀盘和刀片的三维结构模型并进行有限元模拟。在刀片旋刀式运动的理论分析基础上,确定 其运动不平衡产生的激励类型。通过对刀盘进行动态响应分析,设计出改进的刀盘结构。创新 设计的割草车刀盘增加了弧形曲面相连形状的钣金裙围结构,使得所设计的割草车刀片的刀尖 速度不低于80 m/s,能够保证其具有较高的旋转频率以获得较大的出力,同时不会引起激烈的 共振和较大的噪音,提高了割草的效果和效率。
Abstract:
In order to enhance the performance of a commercial riding lawn-mower, the single deck with three rotating blades is improved. The three dimension structure model of the deck and blades are established and the finite element is simulated. The excitation type produced by the unbalance movement of the blades is confirmed based on the theoretical analysis of the rotating blade motion. By means of the dynamic response analysis of the deck, the improved deck structure is designed. The innovative design for riding lawn-mower’s deck adopts the skirt around the structure made by the sheet metal with curved surfaces, so the speed of the mowing blade tip is not less than 80m/s. The mowing blades can have the higher gyro frequency to achieve greater cutting forces,and will not bring intense resonance and big noise. The cutting effect and efficiency is improved.

参考文献/References:

[1] 高敏,周仁和. 坐骑式割草车设计要素及发展分析 [J]. 中国科技信息, 2008( 5) : 67-68.
[2] Johansson J,Ahlund B,Rosenpek N, et al. Lawn mower deck and method for making the same[P]. US: 08 / 063105, 2008-05-29.
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[9] 马晓春. 割草机的设计与动态特性研究[D]. 哈尔 滨: 东北林业大学土木学院, 2005.
[10] 周宁. 割草机器人割台设计与运动控制研究[D]. 镇江: 江苏大学机械工程学院, 2005.
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备注/Memo

备注/Memo:
基金项目: 南京理工大学自主科研专项计划( 20102YTS003) 作者简介: 祖莉( 1977-) ,女,博士,主要研究方向: 智能机械、精密传动和移动机器人技术,E-mail: mzmllovey@ vip. sina. com。
更新日期/Last Update: 2012-10-25