共查询到19条相似文献,搜索用时 328 毫秒
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该文针对液压柱塞泵振动噪声的危害,以直轴式液压柱塞泵为例阐述了液压柱塞泵的工作原理,分析了液压柱塞泵振动噪声产生的根源,针对性给出了液压柱塞泵振动噪声改善建议。 相似文献
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针对研制出的阀配流式柱塞泵样机,使用噪声与振动测试仪测量了阀配流式柱塞泵组在各测量点上的噪声信号,并对常压和额定工况下泵组的噪声信号进行1/3倍频程频谱分析。分析了噪声的主要来源并提出了相应的解决方法。 相似文献
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液压柱塞泵的噪声控制 总被引:6,自引:0,他引:6
本文以降低液压柱塞泵的噪声为目的,围绕液压柱塞泵配流过程的数学模型、配流噪声的测试方法及配流结构的优化设计等内容展开了全面的理论分析和试验研究。最终通过对液压柱塞泵主要噪声源之一的配流噪声的控制,使63SCY14—1B 轴向柱塞泵的整体噪声明显降低。 相似文献
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本文介绍了的是一种新型变量径向柱塞泵,它由于采用了一系列与传统柱塞泵所不同的独特设计,有效地提高了系统的性能指标。实践证明,该泵是一种结构新颖,设计合理的新一代径向柱塞泵。 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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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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径向柱塞泵柱塞副泄漏流量的计算 总被引:1,自引:0,他引:1
考虑到流体的粘度随压力及温度变化,柱塞内油液压力随吸油压力和排油压力交变,密封长度也随柱塞在缸孔中的位置而变化,及柱塞运动引起的剪切流量等因素,通过积分方法,对新型径向柱塞泵中柱塞副的环形间隙泄漏流量计算公式进行修正,得到了柱塞副泄漏流量修正系数。 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