A11VO-190型轴向柱塞泵恒功率控制特性研究

发布时间：2018-01-04 10:18

本文关键词：A11VO-190型轴向柱塞泵恒功率控制特性研究　出处：《兰州理工大学》2011年硕士论文　论文类型：学位论文

【摘要】：目前,能源浪费问题受到密切关注。在工程机械中,负载与动力源的不匹配使的能源浪费相当严重。随着变量泵的出现,这种情况得到很大改善,恒功率控制就是变量控制中的一种,它主要是根据系统压力来调节泵的排量,使系统输出功率保持在一定的误差范围内,使其基本上达到恒功率控制。文中所做的主要工作有: 1、对液压控制系统做了简要介绍,并阐述了本课题研究的必要性,和研究问题的主要思路; 2、简单说明了目前常见的几种机-液恒功率控制系统,并对A11VO的恒功率控制原理作了介绍; 3、首先对恒功率控制中所需要的各种参数进行了介绍,以便在数学分析的时候可以直接引用,然后就是对恒功率控制系统中的元件建立了动态的数学模型。由于恒功率控制系统在控制过程中受到的最大扰动就是柱塞作用于斜盘的液压力矩,故也对柱塞作用于斜盘的力矩做了简单分析,最后将这种较复杂的、不便分析的系统进行了等效转换,使分析过程大大简化; 4、首先对恒功率控制进行了数学分析,从分析结果可以看出,摆杆结构的恒功率控制系统仍然不是完全的恒功率控制,只是近似的恒功率控制,从中得出恒功率控制主要与哪些变量相关,并给出最小整体误差恒功率误差曲线;其次对恒功率控制系统进行了动态响应分析,从而得出不同参数对系统响应特性的影响。
[Abstract]:At present, the problem of energy waste is being closely watched. In engineering machinery, load and make the waste of energy is serious. The power source does not match with the variable pump, this situation has been greatly improved, a constant power control variable is in control, it is mainly to adjust the pump according to the system pressure displacement, make the system the output power is kept in a certain range of error, which basically achieve constant power control. The main work of this paper is:
1, the hydraulic control system is briefly introduced, and the necessity of the research and the main ideas of the research are expounded.
2, it simply explains several common machine - liquid constant power control systems, and introduces the principle of constant power control of A11VO.
3, first of all the parameters needed constant power control are introduced, so that can be directly used in mathematical analysis, and then the constant power control system components in the established dynamic mathematical model. Because the hydraulic torque constant power control system is in the control process is to skew the maximum piston the disk, so the piston effect on the swash plate torque to do a simple analysis, finally the more complex, inconvenient system analysis of the equivalent conversion, the analysis process is greatly simplified;
4, the constant power control is analyzed, the analysis results show that the structure of swing rod constant power control system of constant power control is still not completely, only approximate constant power control, the constant power control is mainly related to what variables, and gives the overall minimum error constant power error curve; secondly, the dynamic response analysis of constant power control system, so that the effects of different parameters on the system response.

【学位授予单位】：兰州理工大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH322

【引证文献】