新型变排量外啮合齿轮泵流量特性研究

doi:10.3901/JME.2019.24.227

机械工程学报 ›› 2019, Vol. 55 ›› Issue (24): 227-235,252.doi: 10.3901/JME.2019.24.227

新型变排量外啮合齿轮泵流量特性研究

赵斌, 何焱泳, 郭伟伟, 郝云晓, 权龙

太原理工大学新型传感器与智能控制教育部/山西省重点实验室太原 030024

收稿日期:2019-08-29 修回日期:2019-10-05 出版日期:2020-12-20 发布日期:2020-02-18
通讯作者: 权龙(通信作者),男,1959年出生,博士,教授,博士研究生导师。主要研究方向为电液伺服及比例控制技术,工程机械节能。E-mail:quanlong@tyut.edu.cn
作者简介:赵斌,男,1981年出生,博士,副教授,硕士研究生导师。主要从事机电装备建模理论及智能控制、电液节能系统、液压元件等方面的研究。E-mail:zbtyut@126.com
基金资助:
国家青年科学基金（51605322）、山西省重点研发计划（201803D121098）和山西省回国留学人员科研（2017-033）资助项目。

Study on Flow Characteristics of New Variable Displacement External Meshing Gear Pump

ZHAO Bin, HE Yanyong, GUO Weiwei, HAO Yunxiao, QUAN Long

Key Lab of Advanced Transducers and Intelligent Control System of Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024

Received:2019-08-29 Revised:2019-10-05 Online:2020-12-20 Published:2020-02-18

摘要/Abstract

摘要： 齿轮泵具有结构紧凑、体积小、转速范围大和耐冲击性能强等优点，作为动力元件广泛应用于液压系统。然而，与柱塞泵和叶片泵相比，齿轮泵难以实现变量控制，限制了其应用范围。为此，提出一种变滑块位置-困油区域的齿轮泵变量方式。对变量齿轮泵进行理论分析，通过联合仿真和流场可视化仿真详细分析变量齿轮泵的特性；建立试验台对理论和仿真结果进行了验证。研究结果表明，通过改变变量模块位置，调整困油区域，齿轮泵排量可在88%~100%变化；研究工作将齿轮泵的变量设计提供帮助。

关键词: 变量齿轮泵, 流量脉动, 变量滑块

Abstract: Gear pump is widely used in hydraulic system due to compact structure, small volume, large speed range and strong impact resistance. However, compared with piston pump and vane pump, gear pump is difficult to achieve variable control, which limits its application. Therefore, a variable displacement mode of gear pump with variable slider position-trapped area is proposed. The theory of variable gear pump is analyzed, and the characteristics of variable gear pump are analyzed through joint simulation and flow field visualization simulation. Finally, a test-bench is established to verify the theory and simulation results. The results show that the displacement of gear pump can vary from 88% to 100% by changing the position of variable module and adjusting the trapped area. The research work will help the variable design of gear pump.

Key words: variable gear pump, flow fluctuation, variable slider

中图分类号:

TH137

赵斌, 何焱泳, 郭伟伟, 郝云晓, 权龙. 新型变排量外啮合齿轮泵流量特性研究[J]. 机械工程学报, 2019, 55(24): 227-235,252.

ZHAO Bin, HE Yanyong, GUO Weiwei, HAO Yunxiao, QUAN Long. Study on Flow Characteristics of New Variable Displacement External Meshing Gear Pump[J]. Journal of Mechanical Engineering, 2019, 55(24): 227-235,252.

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新型变排量外啮合齿轮泵流量特性研究

Study on Flow Characteristics of New Variable Displacement External Meshing Gear Pump

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