闻德生,隋广东,冯佩坤,田山恒,王少朋,刘小雪.多输出径向柱塞泵输出特性分析与实验[J].农业机械学报,2018,49(10):418-426.
WEN Desheng,SUI Guangdong,FENG Peikun,TIAN Shanheng,WANG Shaopeng,LIU Xiaoxue.Output Characteristics Analysis and Experiment of Multi-output Radial Piston Pump[J].Transactions of the Chinese Society for Agricultural Machinery,2018,49(10):418-426.
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多输出径向柱塞泵输出特性分析与实验   [下载全文]
Output Characteristics Analysis and Experiment of Multi-output Radial Piston Pump   [Download Pdf][in English]
投稿时间:2018-04-28  
DOI:10.6041/j.issn.1000-1298.2018.10.049
中文关键词:  多输出径向柱塞泵  高压大流量  流量脉动  实验
基金项目:国家自然科学基金项目(50975246)
作者单位
闻德生 燕山大学 
隋广东 燕山大学 
冯佩坤 燕山大学 
田山恒 燕山大学 
王少朋 燕山大学 
刘小雪 燕山大学 
中文摘要:现有的定量泵无法满足单泵输出多级流量,传统液压系统为了解决需求不同级流量问题,会采用变量泵以及利用阀类和辅助元件的控制来满足工况要求。多输出径向柱塞泵利用其结构特殊性,可实现输出流量多样性。根据力平衡原理和曲柄滑块机构原理,对多输出径向柱塞泵运动学进行分析,通过分析该泵不同工作方式下的流量脉动,确定了流量脉动最小的工作方式。理论分析表明,非相邻两列柱塞联合输出时的流量脉动曲线和相邻两列柱塞的输出流量脉动曲线相似,且不同工作方式下的曲线周期规律均和单列柱塞曲线周期规律有关,当泵输出最大流量工作时,油流的脉动幅度和脉动周期远小于单个输出。利用该泵样机,进行了泵的原理实验,实验结果表明,随着泵出口压力升高,测得泵实际流量不断减少,但是,由于加工条件有限,部分零件的加工精度无法保证,导致实验结果和理论分析不匹配,而实验数据分析验证了该泵的原理正确性和结构合理性,为日后径向柱塞泵的研究和发展奠定了基础。
WEN Desheng  SUI Guangdong  FENG Peikun  TIAN Shanheng  WANG Shaopeng  LIU Xiaoxue
Yanshan University,Yanshan University,Yanshan University,Yanshan University,Yanshan University and Yanshan University
Key Words:multi-output radial piston pump  high pressure and large flow  flow pulsation  experiment
Abstract:The existing quantitative pump cannot meet the multi-stage flow of single pump output. In order to solve the problem of different flow levels of the traditional hydraulic system, the variable pump and control of valve and auxiliary components were used to meet the working condition requirements. The multi-output radial piston pump was a new hydraulic component designed according to the "double stator theory". It utilized its structural specificity to achieve output flow diversity. According to the principle of force balance and the principle of crank-slider mechanism, the kinematics of multi-output radial piston pump was analyzed. By analyzing the flow pulsation of the pump under different working modes, the working mode with minimum flow pulsation was determined. Theoretical analysis showed that the flow pulsation curve of the non-adjacent two columns of plungers was similar to the output flow pulsation curve of the adjacent two columns of plungers, and the curve periodicity of the different working modes was related to the periodicity of the single column plunger curve. When the pump output maximum flow, the pulsation amplitude and pulsation period of the oil flow were much smaller than the single output. Using the pump prototype, the principle experiment of the pump was carried out. The experimental results showed that the actual flow rate of the pump was continuously decreasing as the pump outlet pressure was increased. However, due to limited processing conditions, the machining accuracy of some parts cannot be guaranteed, resulting in experimental results. The theoretical analysis did not match, and the experimental data analysis verified the correctness of the principle and structural rationality of the pump, which laid a foundation for the research and development of the radial piston pump in the future.

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

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