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。
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.
作者
赵斌
何焱泳
郭伟伟
郝云晓
权龙
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)
出处
《机械工程学报》
EI
CAS
CSCD
北大核心
2019年第24期227-235,252,共10页
Journal of Mechanical Engineering
基金
国家青年科学基金(51605322)
山西省重点研发计划(201803D121098)
山西省回国留学人员科研(2017-033)资助项目
关键词
变量齿轮泵
流量脉动
变量滑块
variable gear pump
flow fluctuation
variable slider
