【作者】 牛壮；

【导师】 朱碧海；

【作者基本信息】 华中科技大学 ， 机械电子工程， 2011， 硕士

【摘要】 本文研制了一种可用于海洋水下作业机械的双斜盘轴向柱塞式海水液压电机泵。该泵将双斜盘轴向柱塞泵集成在电机转子内部,电机采用屏蔽式结构,电机的定子铁芯和绕组均封装在密闭腔内,腔内充满变压器油。腔内压力通过均压装置与环境压力平衡。相比三段式结构,该泵实现了液压动力单元的机电液一体化设计,有体积小、重量轻、结构紧凑的特点。文中对双斜盘柱塞泵的柱塞、滑靴和缸体构成的旋转组件进行动力学分析,研究表明:对称的双斜盘结构使旋转组件实现动平衡,轴向截面内的力矩和轴向力也能平衡。通过对旋转配流阀的配流特性进行分析,研究表明:旋转的配流阀受到离心力作用,有助于吸入阀的开启和压出阀的闭合。通过合理的设计,既可以改善吸入性能,同时也保证了容积效率。利用有限元分析软件对液压电机泵及屏蔽套内的电磁场分析,为液压电机泵的定子和转子以及定转子屏蔽套的电磁设计提供参考依据。样机实验表明:双斜盘结构能够在电机转子有限空间内实现双联柱塞泵结构。样机的性能指标达到预期的研究目标,在额定转速1450rpm下空载流量为60L/min;额定压力8MPa时,容积效率达到为70%。更多还原

【Abstract】 This thesis has researched the seawater hydraulic electric-motor-pump with double swashplates used in the underwater. The double swashplates axial piston pump is integrated in the rotor. The stator and rotor of motor are canned in shielding sleeves. The closed room of the stator is full of insulating oil, in which the pressure is balance with environment pressure by pressure-balance device. Compared with the traditional structure which motor, coupling, and pump are lined in series, the integration design of hydraulic electric-motor-pump is more compact, smaller size, and lighter weight.The dynamic of rotating module which comprise of pistons, slippers, and cylinder is analyzed in the thesis. The result shows that the dynamic balance of rotating module is got by the symmetrical double swashplates mechanism,the torque in the axial cross-section and axial force are also balanced.According to the research on the characteristics of distributing valve which is rotating with cylinder block, the result shows that the centrifugal force of rotating valve help the opening of inlet valve and the closing of outlet valve. A reasonable designing can conduct that the suction performance is improved, and the volumetric efficiency is available.The electromagnetic field of the electric motor pump is calculated using the finite element analysis software, which provides important reference for the electromagnetic field design of stator and rotor.The prototype is manufactured and experimentally investigated. The results show that the duplex piston pump is disposed in the finite inner space of rotor by using the double swashplates. The performance parameters of prototype are in conformity with the design specifications. The flow rate is 56L/min when it is unload at the rotational speed of 1450rpm, and the volumetric efficiency reaches 70% under the pressure of 8MPa.更多还原