【作者】 薛峰；

【导师】 马松龄； 赵灵军；

【作者基本信息】 西安建筑科技大学 ， 机械工程， 2007， 硕士

【摘要】 液压破碎锤是一种由液压能转化为机械冲击能的破碎机具，以液体压力驱动活塞往复运动做功，对外输出能量进行工作。广泛应用于国防施工、公路和铁路建设、市政工程等行业。本课题在分析液压破碎锤工作装置运动过程的基础上，建立了工作装置运动学数学模型，确定了其基本设计参数和总体参数。在Pro／E软件中建立了工作装置的三维实体模型，并进行了虚拟装配。通过对该工作装置的三维可视化干涉检查、运动轨迹、运动包络和运动学分析，验证了所建立的运动学数学模型的正确性，并对工作装置进行了有限元分析。本文还在经典动力学分析软件ADAMS中建立了液压破碎锤工作装置的多刚体虚拟样机，通过以多刚体动力学理论为基础的运动学、动力学分析，得到工作装置的运动学、动力学特性曲线。在此基础上，进一步建立了刚性体和柔性体耦合的工作装置虚拟样机，得到含有柔性体的工作装置运动学、动力学特性曲线，并对两种虚拟样机的仿真结果进行了比较，证明含有柔性体的虚拟样机更接近实际物理样机。在本文中，把Pro／E、ADAMS软件应用于解决实际工程问题，初步领略到了先进的计算机分析软件对解决实际工程问题的强大功能，笔者认为把一些成熟的功能强大的计算机应用软件应用于实际工程，其前景是广阔的，其所取得的经济效益将是不可估量的，随着计算机技术的发展，这将成为大势所趋。本文的研究工作为液压破碎锤工作装置的设计和研究提供了一种行之有效的手段。所得结论不仅对液压破碎锤物理样机的试制和性能评估具有重要意义，而且对其它复杂机械设备的虚拟样机的建立及运动学、动力学分析具有一定参考价值。更多还原

【Abstract】 Hydraulic Break hammer is one of mechanical equipment which transforms hydraulic energy into machine energy. It works as hydraulic force to push the piston. Analyzing the principle of dynamic change of pressure and flow by computer simulation is very important to improve the work efficiency and reliability while reducing the energy consumption.In terms of the kinematic scheme analysis of work equipment of the hydraulic break hammer, its kinetic model is established, and its basic design parameters and whole ones are determined in this research work. Subsequently, the 3D modeling and virtual assembly of the work equipment are accomplished in the Pro/E software, and by the 3D visualization interferential checking and the kinetic locus and wrapping analysis, the validity of the established kinetic model is verified. At the same time, the finite element analysis is performed for the work equipment.In addition, by means of the classical dynamic simulation software ADAMS, the multi-rigid bodies virtual prototype machine is built for the work equipment of the mining anti-explosion loader. Via the kinematic and dynamic simulation based on the multi-rigid bodies dynamics theory, the kinetic and dynamic characteristic curves of the work equipment are obtained. Based on these investigations, the virtual prototype machine coupling rigid bodies with flexible ones is established eventually. By comparing the obtained the kinetic and dynamic characteristic curves and the corresponding simulation results from the latter with those of the former, it is shown that the virtual prototype machine with flexible bodies is more accordant with the physical prototype machine than the former.Pro/E and ADAMS are used to solve the actual engineering problem in this paper which introduces the strong function of advanced computer analyzing software in practice. The author perceives the prospective of the above is very broad, and will bring great profit, with the development of computer technique, it is a must.The research work provides with a valid method to design and study the working device of hydraulic break hammer. The obtained conclusions have important instruction significance to trial-produce and performance evaluation of the physical prototype of work device. It also has reference value for the kinetic and dynamic simulation and the establishment of the virtual prototype of other complicated mechanical devices.更多还原