Ergonomics in developing hand operated maize Dehusker-Sheller for farm women

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• 作者：S.P. Singh^a ; ¹ ; ^{singhsp65@gmail.com} ; Surendra Singh^b ; Pratap Singh^c
• 关键词：Maize dehusker&ndash ; sheller ; Shelling ; Hand cranking
• 刊名：Applied Ergonomics
• 出版年：2012
• 期刊代码：13_00036870
• 类别：et
• 出版时间：July, 2012
• 卷：43
• 期：4
• 页码：792-798
• 文件大小：559 K

摘要

A hand operated maize dehusker-sheller to be operated by farm women was designed and developed to dehusk and shell the maize cobs using ergonomics (anthropometric, strength and physiological workload). Axial-flow maize dehusker-sheller with 540聽mm cylinder length and 380聽mm diameter required 3.03聽N-m torque on cylinder shaft while operating at 5.6聽m聽s^鈭? peripheral speed and 100聽kg聽h^鈭? feed rate by feeding cob one by one. This torque was 30%of isometric torque obtained at front position of handle (greatest distance) with lowest crank length. The heart rate of subject while operating the maize dehusker-sheller at 54聽rpm (5.6聽m聽s^鈭?) was 142聽beats min^鈭?. The output of 60聽kg聽h^鈭? was obtained at the feed rate of 80聽kg聽h^鈭?. Two subjects can operate the machine for an hour with a rest pause of 15聽min by swapping the operation.