《中国康复理论与实践》

《中国康复理论与实践》 ›› 2010, Vol. 16 ›› Issue (5): 492-494.

• 论文 • 上一篇    下一篇

关于腋拐支脚耐磨和抗疲劳性能的实验研究

王保华   

  1. 中国残疾人辅助器具中心，北京市 100068。
  • 收稿日期:2010-04-28 修回日期:2010-05-10 出版日期:2010-05-25 发布日期:2010-05-25

Test Method for Abrasion and Fatigue Resistance of Axillary Crutch Tips

WANG Bao-hua.   

  1. China Assistive Devices and Technology Center for Persons with Disabilities, Beijing 100068, China
  • Received:2010-04-28 Revised:2010-05-10 Published:2010-05-25 Online:2010-05-25

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摘要： 目的探讨腋拐支脚耐磨性能质量的检验方法与判定指标。方法基于对支脚正常使用下的受力情况分析，提出新的试验方法：对支脚轴向加载450 N，支脚与试验平面进行60°摆动，试验进行50万次，负载频率20～40 /min；试验后最大磨损厚度不允许超过3.3 mm。建立试验设施，进行耐磨性和抗剪切疲劳试验。同时，组织与试验次数相同的实际使用试验。结果设备试验和实际使用试验两组实验结果数据的比较表明，建议的方法能反映使用中支脚磨损的状况。结论新的检验方法可用于腋拐支脚耐磨性能质量检测。

关键词: 拐, 支脚, 质量检验, 耐磨, 抗疲劳, 试验方法

Abstract: ObjectiveTo study the method of testing abrasion resistance of axillary crutch tips. MethodsA test method based on pressure analysis in normal use of axillary crutches was suggested, which characterized: put 450 N on axis of the tip; the tip or text surface sway 60° for 500000 times in frequency of 40 /min; maximal abrasion thickness after test should be less than 3.3 mm. Experimental facilities were established to carry out fatigue test of wearability. ResultsThe test method suggested can reflect tips abrasion in real context. ConclusionThe text method can be used for tips abrasion and fatigue resistance adjustment.

Key words: crutch, tips, quality test, abrasion resistance, fatigue resistance, test method