【作者】 王瑞；

【导师】 许宏光；

【作者基本信息】 哈尔滨工业大学 ， 机械电子工程， 2008， 硕士

【摘要】 气液增压器是一种气驱式往复液压增压泵,是近30年逐渐发展起来的新型动力机。在气液增压泵的活塞组件是由气缸活塞与液压泵活塞通过活塞杆直接刚性连接而成。和曲轴式发动机/液压泵的组合动力相比,它省去了曲轴式内燃机中将活塞的往复运动转换为旋转运动的曲柄连杆机构,以及液压泵中将旋转运动转换为泵活塞往复运动的旋转斜盘机构。因此该系统具零件数目少、重量轻、效率高、燃料范围广及易回收系统频繁起停中的惯性能等优点。作为特种发动机,往复式液压泵主要是为了取代目前仍广泛应用的曲轴式发动机在频繁起停大中功率行走机械中的应用。本论文以气动增压器为研究对象,从理论分析、数学模型的建立与仿真、方案的评审、原理样机研制与试验等方面对系统的工作机理进行了全面而系统的研究。首先,根据系统要求的性能指标,对系统原理、控制回路、基本结构参数、进行了初步的设计与计算。并运用热力学第一定律、连续方程、动量方程等对气动增压系统的输出压力、流量特性、执行机构的运动特性进行了数学描述。其次,应用MATLAB/Simulink仿真软件对系统进行仿真,讨论了气动增压系统的输出压力、流量特性,为气动增压器的研制提供了理论基础。再次,对气动增压器的部分组建进行了设计。最后,对气动增压器进行试验研究与性能测试。更多还原

【Abstract】 This air operated pressure intensifier is a kind of Piston Engined Hydraulic Reciprocating Pump, it’s a new strengthmachine in the nearly 30 years. In the system of the pump, Piston components is componented of the rigid directly linking of the cylinder piston and hydraulic piston, this struction needn’t the crank rod which converts the reciprocating piston motion into rotational motion and the Wobble-body rotation which converts the rotary motion into the Reciprocating motion of piston pump in the internal combustion engine crankshaft. Thus, the system has Advantages of simple in structure, the small number of parts, light weight, low cost and high efficiency, wide range of fuels , can be recovered easily inertial and gravitational potential energy during the System’s frequent starting and stopping and so on. As a special engine, the Piston Engined Hydraulic Reciprocating Pump Mainly to replace the crankshaft engine which is widely applied .This paper has served the pneumatic hydraulic pump as research subjects, and conducted a comprehensive and systematic study through theoretical analysis, mathematical modeling and simulation, the program’s accreditation, prototype development, experiments and other aspects of the system working mechanism .First, according to the requirements of the system performance, have carried out preliminary design on system principle, the control circuit, the basic structure parameters. mathematical descriptions of output characteristics of the pressure, flow characteristic and kinematical characteristics of the high-pressure integrated component of valve-controlled pneumatic cylinder are developed based on the First Law of Thermodynamics, Continuity Equation and Momentum Equation.Second, Output characteristics of the pressure, flow characteristic are emphatically analyzed through simulation study with MATLAB/SIMULINK software, which provide a theory foundation for the development of the pneumatic hydraulic pump.Third, mapped out of the product drawings and developed the prototype. Finally, some experiments are managed to test the performance of the pneumatic hydraulic pump.更多还原