一种双锥对置锥螺杆高压海水液压泵关键基础理论研究

发布时间：2018-04-16 02:01

本文选题：双锥对置 + 锥螺杆　；参考：《北京工业大学》2012年硕士论文

【摘要】：现代海洋装备技术是针对海洋环境，集成了目前众多通用技术，融合而成的一门国际前沿技术，其中海水液压技术以其独特的优势成为了适应海洋开发与发展现代海洋装备技术而产生的一门通用技术。海水液压泵是海水液压技术的核心动力元件，是海水液压系统的心脏，为此国内外针对海水液压泵开展了大量的研究。目前关于海水液压泵的研究主要是柱塞式海水液压泵，但柱塞式海水液压泵的关键摩擦副较多，结构复杂，对摩擦磨损、润滑密封以及腐蚀与污染控制技术提出了很高的要求。此外，无论是轴向柱塞泵，，还是叶片泵、齿轮泵，在结构上都不可避免地导致一定的困油现象，造成流量脉动和压力波动，从而影响泵的工作性能。因此，为了满足现代海洋装备的要求，特别是大深度深潜作业装备的要求，设计了一种新型双锥对置锥螺杆高压海水液压泵，并对该泵进行了关键技术理论方面的研究，并取得了以下成果：基于空间啮合理论和坐标变化理论，建立了双锥对置锥螺杆高压海水液压泵锥螺杆-衬套副的曲面方程；通过MATLAB/SIMULINK及Pro/E软件建立锥螺杆-衬套副三维实体模型，并对锥螺杆-衬套共轭副进行运动学分析，得出锥螺杆的运动规律。建立双锥对置锥螺杆高压海水液压泵的流量方程，并利用MATLAB对液压泵的过流面积及流量方程进行仿真分析，探讨了液压泵关键设计参数对其过流面积和流量的影响规律。通过ANSYS软件建立双锥对置锥螺杆高压海水液压泵定子（衬套和壳体）的有限元分析模型，并对定子空间模型和平面模型受力状态下的变形及应力进行对比分析，探讨定子平面模型能否代替空间模型，并研究定子在内腔受力情况下的变形规律。利用ANSYS软件建立双锥对置锥螺杆高压海水液压泵锥螺杆-衬套副的有限元分析模型，并采用非线性有限元分析法对衬套和锥螺杆初始过盈下的变形和应力进行研究，探讨锥螺杆和衬套的变形规律。
[Abstract]:Modern marine equipment technology is an international frontier technology, which is aimed at the marine environment and integrates many current common technologies.With its unique advantages, seawater hydraulic technology has become a universal technology for ocean development and development of modern marine equipment technology.Seawater hydraulic pump is the core power component of seawater hydraulic technology and the heart of seawater hydraulic system.At present, the research on seawater hydraulic pump is mainly about plunger type seawater hydraulic pump, but the plunger type seawater hydraulic pump has many key friction pairs and complex structure, which puts forward very high requirements for friction and wear, lubrication sealing, corrosion and pollution control technology.In addition, both axial piston pump, vane pump and gear pump will inevitably lead to a certain oil trap in structure, resulting in flow pulsation and pressure fluctuation, thus affecting the working performance of the pump.Therefore, in order to meet the requirements of modern marine equipment, especially the requirements of deep submersible operation equipment, a new type of double-cone conical screw high-pressure seawater hydraulic pump is designed, and the key technical and theoretical aspects of the pump are studied.The following results have been achieved:Based on the space meshing theory and coordinate change theory, the curved surface equation of the cone screw bushing pair of high pressure seawater hydraulic pump is established, and the three-dimensional solid model of the conical screw bushing pair is established by MATLAB/SIMULINK and Pro/E software.The kinematics analysis of conical screw-bushing conjugate pair is carried out, and the motion law of conical screw is obtained.The flow equation of double-cone screw high pressure seawater hydraulic pump is established. The flow area and flow equation of hydraulic pump are simulated and analyzed by MATLAB. The influence of key design parameters of hydraulic pump on its overflowing area and flow rate is discussed.The finite element analysis model of the stator (bushing and shell) of the double-cone cone-screw high-pressure seawater hydraulic pump was established by ANSYS software, and the deformation and stress of the stator space model and the plane model were compared and analyzed.This paper discusses whether the stator plane model can replace the spatial model, and studies the deformation law of the stator under the condition of the inner cavity.The finite element analysis model of cone screw bushing pair of double conical countertaper screw high pressure seawater hydraulic pump was established by using ANSYS software. The deformation and stress of liner and cone screw under initial interference were studied by nonlinear finite element analysis.The deformation law of taper screw and bushing is discussed.
【学位授予单位】：北京工业大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH137

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