毕业论文-高压液压泵设计.doc

摘要 伴随生产技术水平的提升，工业生产的各领域和科学实验部门正逐步采用高压和超高压液压技术，对液压泵的压力也有了更高的要求。 首先对针对齿轮泵、叶片泵、柱塞泵。螺杆泵等的工作性能、结构特点、压力范围等内容进行了分析研究，确定高压液压泵方案采用柱塞泵的结构形式设计。对这种轴向柱塞，以给定的设计参数，以工作压力40兆帕，额定流量100L/min、最大流量200L/min，进行了对柱塞、滑靴、配油盘、缸体等零部件进行了受力分析与设计，然后是对斜盘力矩的分析，最后是对变量机构的选择。 关键词：液压泵；柱塞泵；高压 Abstract With the improvement of production technology, and scientific experiments in the areas of industrial production sector is gradually using high-pressure and high pressure hydraulic technology, the pressure on the hydraulic pump also have higher requirements. Aiming high pressure pump design, first for gear pumps, vane pumps, piston pumps. Performance screw pump, structural characteristics, pressure range, etc. were analyzed and finalized in the form of structural design of high-pressure piston pump. The most widely used of a piston pump is currently applied axial piston pump, it is compared with a gear pump and vane pump, the working pressure, rated flow, volumetric efficiency, ease of variables have some other aspects of life advantage. After this paper that the axial piston, given the design parameters, in the working pressure of 40 MPa, rated flow 100L / min, maximum flow 200L / min, carried on the plunger, slipper, with oil pan, cylinders and other components were stress analysis and design, and is a moment of the swash plate analysis, and finally the elaboration of variable bodies. Keywords: hydraulic pump; high pressure; piston pump 目录 1 绪论 1 1.1课题研究背景及意义 1 1.1.1课题研究背景 1 1.1.2课题研究意义 2 1.2高压液压泵设计参数 2 2 液压泵方案设计 3 2.1齿轮泵的主要结构及特点 3 2.2叶片泵的主要结构及特点 4 2.3柱塞泵的主要结构及特点 5 2.4螺杆泵的主要结构及特点 6 2.5 液压泵方案确定 7 2.6 本章小结 7 3直轴式轴向柱塞泵工作原理与主要性能参数计算 8 3.1直轴式轴向柱塞泵工作原理 8 3.2直轴式轴向柱塞泵性能参数 9 3.3 本章小结 10 4 柱塞设计 11 4.1柱塞受力分析 11 4.1.1柱塞底部的液压力Pb 11 4.1.2柱塞惯性力Pg 12 4.1.3离心反力Pt 12 4.1.4斜盘反力N 12 4.1.5柱塞与柱塞腔壁之间的接触应力P1和P2 12 4.1.6摩擦力P1f和P2f 13 4.2柱塞设计 14 4.2.1柱塞结构型式 14 4.2.2柱塞结构尺寸设计 16 4.3 本章小结 18 5 滑靴受力分析与设计 19 5.1滑靴受力分析 19 5.1.1分离力pf 19 5.1.2压紧力py 21 5.1.3力平衡方程式 21 5.2滑靴设计 21 5.3滑靴结构型式与结构尺寸设计 22 5.3.1滑靴结构型式 22 5.3.2结构尺寸设计 23 5.4 本章小结 25