双侧驱动轴向柱塞马达斜盘机构性能分析

发布时间：2018-06-21 23:38

本文选题：双侧驱动轴向柱塞马达 + 斜盘　；参考：《安徽理工大学》2017年硕士论文

【摘要】：斜盘是轴向柱塞马达的重要部件,支撑着滑靴推动柱塞作轴向运动对缸体柱塞孔内的液体做功,对于柱塞马达可变容积的形成来说是不可缺少的。双侧驱动轴向柱塞马达的新型斜盘机构具有优于普通斜盘的受力情况,但结构更为复杂,对其具体特性需进行相关研究。新型斜盘具有多斜面结构,且每个斜面的最大外径应能够保证所对应滑靴的底面与斜盘相接触。分析柱塞及滑靴在斜盘上的运动规律,并以此确定斜盘各斜面的最小几何尺寸;绘制斜盘结构尺寸示意图,根据柱塞、滑靴、转动轴等相关尺寸关系,给出斜盘各斜面边界的数学表达式,并通过计算实例进行说明。在对新型斜盘进行结构设计的基础上,对其承受的来自柱塞与滑靴组件的作用力矩、摩擦力矩以及斜盘本身存在的偏心力矩进行具体分析并给出计算公式。在不考虑外部因素如驱动压力、流量脉动、泄漏量等的影响,只考虑配流盘结构形式对液压力所引起的斜盘与缸体之间的作用力与力矩的影响时,对扭矩特性进行更深入的分析,给出理想情况、只考虑三角槽、考虑三角槽及闭死角三种瞬态扭矩计算公式,利用MATLAB分析每排柱塞数均为奇数或偶数时的扭矩特性,并分析闭死角对扭矩特性的影响。利用AMESim对双侧驱动轴向柱塞马达进行液压建模,并根据MATLAB仿真分析结果进行模型参数设置,同时建立普通轴向柱塞马达系统仿真模型,对两者启动特性进行对比分析。在了解双侧驱动轴向柱塞马达启动特性的基础上,从不同排量比、不同排量、不同负载惯量三个方面对启动时斜盘机构处的力矩响应进行仿真分析。论文对斜盘机构的结构设计、力矩分析及启动特性进行了分析,研究结果对双侧驱动轴向柱塞马达整体结构的设计与性能优化提供了参考依据。
[Abstract]:The inclined disk is an important part of axial plunger motor. It is indispensable for the formation of variable volume of plunger motor to support the sliding boots to push the plunger to perform work on the liquid in the plunger hole of the cylinder block. The new type of inclined disk mechanism which drives axial plunger motor on both sides is superior to the common one, but the structure is more complicated, so it is necessary to study the specific characteristics of the mechanism. The new type of inclined disk has a multi-plane structure, and the maximum external diameter of each inclined plane should be able to ensure that the bottom surface of the corresponding slide shoe is in contact with the inclined disk. The movement law of plunger and slipper on the skew disk is analyzed, and the minimum geometric dimension of each inclined plane of the inclined disk is determined, and the schematic diagram of the structural dimension of the disc is drawn, according to the relative dimensions of plunger, slipper, rotating shaft, etc. The mathematical expressions of each slope boundary of the skew plate are given, and the calculation examples are given. Based on the structural design of the new type of inclined disc, the acting torque, friction moment and eccentricity moment from the plunger and slipper assembly are analyzed in detail and the calculation formula is given. Without considering the influence of external factors such as driving pressure, flow pulsation, leakage, etc., only considering the influence of the structure of the distribution disc on the force and torque between the inclined disk and the cylinder caused by the liquid pressure, In this paper, the torque characteristic is analyzed more deeply, and the ideal condition is given. Considering only triangular slot, triangle groove and closed dead angle, the torque characteristic of every row of plunger is analyzed by MATLAB when the number of plunger is odd or even. The influence of closed dead angle on torque characteristic is analyzed. The hydraulic modeling of the axial piston motor driven by two sides is carried out by using AMESim, and the parameters of the model are set up according to the simulation results of MATLAB. At the same time, the simulation model of the common axial plunger motor system is established, and the startup characteristics of the two motors are compared and analyzed. On the basis of understanding the starting characteristics of the axial piston motor driven by two sides, the torque response of the tilting disk mechanism is simulated and analyzed from three aspects: different displacement ratio, different displacement quantity and different load inertia. In this paper, the structural design, torque analysis and starting characteristics of the skew disk mechanism are analyzed. The results provide a reference for the design and performance optimization of the axial piston motor driven by two sides.
【学位授予单位】：安徽理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TH137.51

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