电锤冲击气动系统的研究

摘要

32 mm-nominal connecting rod electric hammer was chosen as an research object .First a mathematical model of pneu-matic system of electric hammer was established based on basic knowledge of kinematics and aerodynamics .Combining of the mathe-matical model and computer aided engineering ( CAE) simulation model of pneumatic system of electric hammer , theoretical data of hammer motion were determined .And then the experimental data of hammer motion were acquired from high speed video and ProAna -lyst analysis software , which indicated a good agreement with theoretical data .Finally, the impact energy of output end of electric hammer was obtained through building and analyzing CAE simulation model of impact system which includes hammer , anvil and bit . The finally obtained impact energy is also close to the nominal energy of electrical hammer on the market , which provides an important basis for old product improvement and new product development of electric hammer .%以市场上标称32 mm连杆式电锤作为研究实际对象，首先运用空气动力学知识建立电锤气动系统数学模型，并将数学模型代入到气动CAE仿真模型中获得撞锤理论运动数据，然后通过高速摄像和ProAnalyst高速分析软件获得实际的撞锤运动数据，从而验证CAE气动仿真模型理论数据的真实性，最后通过建立撞锤、撞杆和工作头的CAE冲击仿真模型，最终获得电锤输出端的冲击能量，且与市场标定能量相近，为旧产品的改进和新产品的开发提供了参考。