共查询到19条相似文献,搜索用时 125 毫秒
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径向柱塞泵高速滑动摩擦副材料的性能分析 总被引:1,自引:0,他引:1
对一种新型径向柱塞泵的定子和连杆滑靴这一对高速滑动摩擦副的材料进行了分析,研究发现黄铜材料和锡青铜材料作为径向柱塞泵高速滑动摩擦副的选材不合适;定子材料选用GCr15,连杆滑靴基体采用38CrMoAl且表面渗MoS2,目前是高速滑动径向柱塞泵摩擦副材料的一种有效选择。 相似文献
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董季澄曹文斌杨国来陈晨高文涛 《液压气动与密封》2018,(12):11-14
高压超大排量动力元件在大型液压设备中应用广泛,其首选泵型是盘配流式径向柱塞泵,该文以一种全新的盘配流式径向柱塞泵为研究对象,对该泵型的工作原理和结构进行了详细的论述,并对该泵的关键摩擦副进行了三维Solidworks建模,对盘配流式径向柱塞泵的缸体(转子)和配流盘这对关键摩擦副在两种主要旋转工况下采用了Ansys进行了静力学分析,找到了该泵型在工况温度为40℃时缸体(转子)和配流盘等效应力和变形量最大的区域,为该泵型的理论设计和样机的试制提供理论依据。 相似文献
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总结了径向柱塞泵阀配流、端面配流和圆柱形轴配流方式的研究现状和成果。提出了应用锥形配流方式径向柱塞泵的配流副结构设计,进行了锥形配流副的工作原理、受力和静压支承分析,讨论了其有待深入研究的关键问题。 相似文献
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目前国产径向柱塞泵的额定压力为28MPa,这样的额定压力使径向柱塞泵的应用场合受到一定的限制。为此,将径向柱塞泵的额定工作压力提高到35MPa,分析配流轴的力学性能。根据配流轴径向受力分析,运用Pro/E及ANSYS Workbench仿真软件对其强度和刚度进行校核。分析结果表明,配流轴的强度和刚度满足设计要求。 相似文献
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盘配流径向高压柱塞泵 总被引:1,自引:1,他引:0
本文介绍一种全新的盘配流径向高压柱塞泵。其特点是吸收了各种柱塞泵的结构优点,综合设计形成了径向柱塞泵的第三类结构方式。主泵结构内部变化,但是外连接尺寸采用国际标准。可以采取相应的变量形式,利用原有的伺服变量、恒功率变量、即将开发的有微机控制变量、电液比例控制变量等变量结构方式,成为一种高性能、低成本、可修复性提高的全新产品,完全可以替代美国穆格(MOOG)产品。该结构已经被国家知识产权局受理了发明和实用新型专利。 相似文献
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新型径向柱塞泵降噪机理分析 总被引:6,自引:0,他引:6
新型径向柱塞泵的噪声明显低于其它类型的液压泵,本文以液压元件产生机械噪声和流体噪声机理为基础,从新型径向柱塞泵的结构上进行分析,总结其噪声低的主要原因。 相似文献
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The limit working parameters and service life of axial piston pump are determined by the carrying ability and lubrication characteristic of its key friction pairs. Therefore, the design and optimization of the key friction pairs are always a key and difficult problem in the research on axial piston pump. In the traditional research on piston/cylinder pair, the assembly relationship of piston and cylinder bore is simplified into ideal cylindrical pair, which can not be used to analyze the influences of radial micro-motion of piston on the distribution characteristics of oil-film thickness and pressure in details. In this paper, based on the lubrication theory of the oil film, a numerical simulation model is built, taking the influences of roughness, elastic deformation of piston and pressure-viscosity effect into consideration. With the simulation model, the dynamic characteristics of the radial micro-motion and pressure distribution are analyzed, and the relationships between radial micro-motion and carrying ability, lubrication condition, and abrasion are discussed. Furthermore, a model pump for pressure distribution measurement of oil film between piston and cylinder bore is designed. The comparison of simulation and experimental results of pressure distribution shows that the simulation model has high accuracy. The experiment and simulation results demonstrate that the pressure distribution has peak values that are much higher than the boundary pressure in the piston chamber due to the radial micro-motion, and the abrasion of piston takes place mainly on the hand close to piston ball. In addition, improvement of manufacturing roundness and straightness of piston and cylinder bore is helpful to improve the carrying ability of piston/cylinder pair. The proposed research provides references for designing piston/cylinder pair, and helps to prolong the service life of axial piston pump. 相似文献