The pressure distribution condition of flow field in pneumatic nailer is the key factor which determines it's pneumatic performance. According to the undefined condition of the pressure inside pneumatic nailer, a method of internal pressure testing was designed and an experimental model was made based on the study of the structure and pneumatic principle of pneumatic nailer. The corresponding curves were obtained by using pressure sensors to test the inner dynamic pressure during the working process. The experimental results verify the working principle of pneumatic nailer and provides the basis of the numerical analysis for the flow field, meanwhile, it's also the foundation for further studies of series performance indexes of pneumatic nailer. [Ch,5 fig. 1 tab. 9 ref. ]%气钉枪流场压力是决定气动性能的关键因素,针对气钉枪内部压力不明确的问题,在研究气钉枪结构特点及气动原理的基础上,提出测试内部压力的方案,设计并制作测试模型,使用压力传感器测试工作过程中内部流场动态压力,得到相应的压力变化曲线.实验结果不仅验证了气钉枪的工作原理,同时为气钉枪的流场数值分析提供了依据,更为气钉枪一系列性能指标研究打好基础.
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