多输出径向柱塞泵输出特性分析与实验
|
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。
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.
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.
引文
1李永华.“一带一路”上的中国工程机械[J].中国经济周刊,2017(19):31-33.
2郭桐,赵升吨,刘辰,等.径向柱塞泵结构发展概述[J].机床与液压,2015,43(13):156-162.GUO Tong,ZHAO Shengdun,LIU Chen,et al.Study on the development of radial piston pump structure[J].Machine Tool&Hydraulics,2015,43(13):156-162.(in Chinese)
3闻德生,王宝华,王广怀,等.串联多级联合配油开路式轴向柱塞泵原理及试验[J].工程机械,1993(6):14-16,41.
4闻德生.端面配油全开路式轴向柱塞泵的工作原理及其试验[J].工程机械,1985(7):28-31.
5 YANG Kun,ZHOU Lelai,RONG Xuewen,et al.Onboard hydraulic system controller design for quadruped robot driven by gasoline engine[J].Mechatronics,2018,52:36-48.
6闻德生,高俊峰,周瑞彬,等.多作用双定子力偶液压马达转矩脉动分析[J/OL].农业机械学报,2014,45(10):319-325.http:∥www.j-csam.org/jcsam/ch/reader/view_abstract.aspx?flag=1&file_no=20141050&journal_id=jcsam.DOI:10.6041/j.issn.1000-1298.2014.10.050.WEN Desheng,GAO Junfeng,ZHOU Ruibin,et al.Analysis of torque pulsation for multi-acting double-stators couple hydraulic motor[J/OL].Transactions of the Chinese Society for Agricultural Machinery,2014,45(10):319-325.(in Chinese)
7欧阳小平,王天照,方旭.高速航空柱塞泵研究现状[J].液压与气动,2018(2):1-8.OUYANG Xiaoping,WANG Tianzhao,FANG Xu.Research status of high speed aviation piston pumps[J].Chinese Hydraulics&Pneumatics,2018(2):1-8.(in Chinese)
8李海宁,曹春玲.一种用阀控实现变量的卧式径向柱塞泵[J].液压与气动,2005(1):59-60.LI Haining,CAO Chunling.A horizontal radial piston pump with variable valve control[J].Chinese Hydraulics&Pneumatics,2005(1):59-60.(in Chinese)
9胡文龙.联合配流开路式径向多输出柱塞泵的研究[D].秦皇岛:燕山大学,2016.HU Wenlong.Research on joint-distribution open radial multi-output plunger pump[D].Qinhuangdao:Yanshan University,2016.(in Chinese)
10闻德生,张凯明,张三喜,等.双定子异形滑块液压马达角速度不均匀性研究[J/OL].农业机械学报,2014,45(4):341-346.http:∥www.j-csam.org/jcsam/ch/reader/view_abstract.aspx?flag=1&file_no=20140454&journal_id=jcsam.DOI:10.6041/j.issn.1000-1298.2014.04.054.WEN Desheng,ZHANG Kaiming,ZHANG Sanxi,et al.Uniformity of double stator alien slider hydraulic motor[J/OL].Transactions of the Chinese Society for Agricultural Machinery,2014,45(4):341-346.(in Chinese)
11闻德生,胡文龙,邱华,等.多泵单马达传动系统输出转矩特性分析[J/OL].农业机械学报,2016,47(1):397-402.http:∥www.j-csam.org/jcsam/ch/reader/view_abstract.aspx?flag=1&file_no=20160155&journal_id=jcsam.DOI:10.6041/j.issn.1000-1298.2016.01.055.WEN Desheng,HU Wenlong,QIU Hua,et al.Output torque characteristics analysis of multi-pump and single-motor transmission system[J/OL].Transactions of the Chinese Society for Agricultural Machinery,2016,47(1):397-402.(in Chinese)
12闻德生,常雪,张少波,等.双定子单作用液压马达转矩脉动研究[J/OL].农业机械学报,2013,44(2):238-242,247.http:∥www.jcsam.org/jcsam/ch/reader/view_abstract.aspx?flag=1&file_no=20130243&journal_id=jcsam.DOI:10.6041/j.issn.1000-1298.2013.02.043.WEN Desheng,CHANG Xue,ZHANG Shaobo,et al.Analysis of torque pulsation for double-stator single-acting multi-motors[J/OL].Transactions of the Chinese Society for Agricultural Machinery,2013,44(2):238-242,247.(in Chinese)
13闻德生,商旭东,马光磊,等.比例型多泵多速马达传动系统设计与试验[J/OL].农业机械学报,2017,48(9):421-428.http:∥www.j-csam.org/jcsam/ch/reader/view_abstract.aspx?flag=1&file_no=20170953&journal_id=jcsam.DOI:10.6041/j.issn.1000-1298.2017.09.053.WEN Desheng,SHANG Xudong,MA Guanglei,et al.Design and experiment of proportional type multi-pump and multi-speed motor driving system[J/OL].Transactions of the Chinese Society for Agricultural Machinery,2017,48(9):421-428.(in Chinese)
14闻德生,商旭东,潘为圆,等.齿轮型多泵多马达传动系统设计与试验[J/OL].农业机械学报,2017,48(6):399-406.http:∥www.j-csam.org/jcsam/ch/reader/view_abstract.aspx?flag=1&file_no=20170653&journal_id=jcsam.DOI:10.6041/j.issn.1000-1298.2017.06.053.WEN Desheng,SHANG Xudong,PAN Weiyuan,et al.Design and experiment on gear multi-pump and multi-motor driving system[J/OL].Transactions of the Chinese Society for Agricultural Machinery,2017,48(6):399-406.(in Chinese)
15杨国来,田丽红,张友亮,等.大排量径向柱塞泵主要结构参数及流量脉动研究[J].液压气动与密封,2015,35(2):13-15.YANG Guolai,TIAN Lihong,ZHANG Youliang,et al.Research on main structure parameters and flow pulsation of large displacement radial piston pump[J].Hydraulic&Pneumatic&Sealing,2015,35(2):13-15.(in Chinese)
16闻德生,刘巧燕,刘忠迅,等.混合型多泵多速马达传动输出特性的研究[J].西安交通大学学报,2014,48(12):15-20.WEN Desheng,LIU Qiaoyan,LIU Zhongxun,et al.Study on transmission output characteristics of hybrid multi-pump multispeed motor[J].Journal of Xi'an Jiaotong University,2014,48(12):15-20.(in Chinese)
17闻德生,吕世君,杜孝杰,等.双定子液压马达差动连接理论分析[J].农业机械学报,2011,42(9):219-224.WEN Desheng,LShijun,DU Xiaojie,et al.Theoretical analysis of differential connection of double-stator hydraulic motor[J].Transactions of the Chinese Society for Agricultural Machinery,2011,42(9):219-224.(in Chinese)
18闻德生,杨杰,郑珍泉,等.双定子对称型多泵多速马达理论特性分析[J/OL].农业机械学报,2014,45(7):321-324.http:∥www.j-csam.org/jcsam/ch/reader/view_abstract.aspx?flag=1&file_no=20140749&journal_id=jcsam.DOI:10.6041/j.issn.1000-1298.2014.07.049.WEN Desheng,YANG Jie,ZHENG Zhenquan,et al.Theory analyses of double stator symmetrical type multi pump and multi speed motor[J/OL].Transactions of the Chinese Society for Agricultural Machinery,2014,45(7):321-324.(in Chinese)
19陈玉华,卞祖亮,陆玉春.背压机组液压调节系统改进与实践[J].冶金动力,2018(5):37-40,43.CHEN Yuhua,BIAN Zuliang,LU Yuchun.Improvement and practice of hydraulic regulating system of back pressure unit[J].Metallurgical Power,2018(5):37-40,43.(in Chinese)
20王雪丽.基于RBF神经网络电液恒功率调速自整定PID控制[J].机床与液压,2016,44(22):115-117.WANG Xueli.Self-tuning PID control based on RBF neural network electro-hydraulic constant power speed regulation[J].Machine Tool&Hydraulics,2016,44(22):115-117.(in Chinese)
2郭桐,赵升吨,刘辰,等.径向柱塞泵结构发展概述[J].机床与液压,2015,43(13):156-162.GUO Tong,ZHAO Shengdun,LIU Chen,et al.Study on the development of radial piston pump structure[J].Machine Tool&Hydraulics,2015,43(13):156-162.(in Chinese)
3闻德生,王宝华,王广怀,等.串联多级联合配油开路式轴向柱塞泵原理及试验[J].工程机械,1993(6):14-16,41.
4闻德生.端面配油全开路式轴向柱塞泵的工作原理及其试验[J].工程机械,1985(7):28-31.
5 YANG Kun,ZHOU Lelai,RONG Xuewen,et al.Onboard hydraulic system controller design for quadruped robot driven by gasoline engine[J].Mechatronics,2018,52:36-48.
6闻德生,高俊峰,周瑞彬,等.多作用双定子力偶液压马达转矩脉动分析[J/OL].农业机械学报,2014,45(10):319-325.http:∥www.j-csam.org/jcsam/ch/reader/view_abstract.aspx?flag=1&file_no=20141050&journal_id=jcsam.DOI:10.6041/j.issn.1000-1298.2014.10.050.WEN Desheng,GAO Junfeng,ZHOU Ruibin,et al.Analysis of torque pulsation for multi-acting double-stators couple hydraulic motor[J/OL].Transactions of the Chinese Society for Agricultural Machinery,2014,45(10):319-325.(in Chinese)
7欧阳小平,王天照,方旭.高速航空柱塞泵研究现状[J].液压与气动,2018(2):1-8.OUYANG Xiaoping,WANG Tianzhao,FANG Xu.Research status of high speed aviation piston pumps[J].Chinese Hydraulics&Pneumatics,2018(2):1-8.(in Chinese)
8李海宁,曹春玲.一种用阀控实现变量的卧式径向柱塞泵[J].液压与气动,2005(1):59-60.LI Haining,CAO Chunling.A horizontal radial piston pump with variable valve control[J].Chinese Hydraulics&Pneumatics,2005(1):59-60.(in Chinese)
9胡文龙.联合配流开路式径向多输出柱塞泵的研究[D].秦皇岛:燕山大学,2016.HU Wenlong.Research on joint-distribution open radial multi-output plunger pump[D].Qinhuangdao:Yanshan University,2016.(in Chinese)
10闻德生,张凯明,张三喜,等.双定子异形滑块液压马达角速度不均匀性研究[J/OL].农业机械学报,2014,45(4):341-346.http:∥www.j-csam.org/jcsam/ch/reader/view_abstract.aspx?flag=1&file_no=20140454&journal_id=jcsam.DOI:10.6041/j.issn.1000-1298.2014.04.054.WEN Desheng,ZHANG Kaiming,ZHANG Sanxi,et al.Uniformity of double stator alien slider hydraulic motor[J/OL].Transactions of the Chinese Society for Agricultural Machinery,2014,45(4):341-346.(in Chinese)
11闻德生,胡文龙,邱华,等.多泵单马达传动系统输出转矩特性分析[J/OL].农业机械学报,2016,47(1):397-402.http:∥www.j-csam.org/jcsam/ch/reader/view_abstract.aspx?flag=1&file_no=20160155&journal_id=jcsam.DOI:10.6041/j.issn.1000-1298.2016.01.055.WEN Desheng,HU Wenlong,QIU Hua,et al.Output torque characteristics analysis of multi-pump and single-motor transmission system[J/OL].Transactions of the Chinese Society for Agricultural Machinery,2016,47(1):397-402.(in Chinese)
12闻德生,常雪,张少波,等.双定子单作用液压马达转矩脉动研究[J/OL].农业机械学报,2013,44(2):238-242,247.http:∥www.jcsam.org/jcsam/ch/reader/view_abstract.aspx?flag=1&file_no=20130243&journal_id=jcsam.DOI:10.6041/j.issn.1000-1298.2013.02.043.WEN Desheng,CHANG Xue,ZHANG Shaobo,et al.Analysis of torque pulsation for double-stator single-acting multi-motors[J/OL].Transactions of the Chinese Society for Agricultural Machinery,2013,44(2):238-242,247.(in Chinese)
13闻德生,商旭东,马光磊,等.比例型多泵多速马达传动系统设计与试验[J/OL].农业机械学报,2017,48(9):421-428.http:∥www.j-csam.org/jcsam/ch/reader/view_abstract.aspx?flag=1&file_no=20170953&journal_id=jcsam.DOI:10.6041/j.issn.1000-1298.2017.09.053.WEN Desheng,SHANG Xudong,MA Guanglei,et al.Design and experiment of proportional type multi-pump and multi-speed motor driving system[J/OL].Transactions of the Chinese Society for Agricultural Machinery,2017,48(9):421-428.(in Chinese)
14闻德生,商旭东,潘为圆,等.齿轮型多泵多马达传动系统设计与试验[J/OL].农业机械学报,2017,48(6):399-406.http:∥www.j-csam.org/jcsam/ch/reader/view_abstract.aspx?flag=1&file_no=20170653&journal_id=jcsam.DOI:10.6041/j.issn.1000-1298.2017.06.053.WEN Desheng,SHANG Xudong,PAN Weiyuan,et al.Design and experiment on gear multi-pump and multi-motor driving system[J/OL].Transactions of the Chinese Society for Agricultural Machinery,2017,48(6):399-406.(in Chinese)
15杨国来,田丽红,张友亮,等.大排量径向柱塞泵主要结构参数及流量脉动研究[J].液压气动与密封,2015,35(2):13-15.YANG Guolai,TIAN Lihong,ZHANG Youliang,et al.Research on main structure parameters and flow pulsation of large displacement radial piston pump[J].Hydraulic&Pneumatic&Sealing,2015,35(2):13-15.(in Chinese)
16闻德生,刘巧燕,刘忠迅,等.混合型多泵多速马达传动输出特性的研究[J].西安交通大学学报,2014,48(12):15-20.WEN Desheng,LIU Qiaoyan,LIU Zhongxun,et al.Study on transmission output characteristics of hybrid multi-pump multispeed motor[J].Journal of Xi'an Jiaotong University,2014,48(12):15-20.(in Chinese)
17闻德生,吕世君,杜孝杰,等.双定子液压马达差动连接理论分析[J].农业机械学报,2011,42(9):219-224.WEN Desheng,LShijun,DU Xiaojie,et al.Theoretical analysis of differential connection of double-stator hydraulic motor[J].Transactions of the Chinese Society for Agricultural Machinery,2011,42(9):219-224.(in Chinese)
18闻德生,杨杰,郑珍泉,等.双定子对称型多泵多速马达理论特性分析[J/OL].农业机械学报,2014,45(7):321-324.http:∥www.j-csam.org/jcsam/ch/reader/view_abstract.aspx?flag=1&file_no=20140749&journal_id=jcsam.DOI:10.6041/j.issn.1000-1298.2014.07.049.WEN Desheng,YANG Jie,ZHENG Zhenquan,et al.Theory analyses of double stator symmetrical type multi pump and multi speed motor[J/OL].Transactions of the Chinese Society for Agricultural Machinery,2014,45(7):321-324.(in Chinese)
19陈玉华,卞祖亮,陆玉春.背压机组液压调节系统改进与实践[J].冶金动力,2018(5):37-40,43.CHEN Yuhua,BIAN Zuliang,LU Yuchun.Improvement and practice of hydraulic regulating system of back pressure unit[J].Metallurgical Power,2018(5):37-40,43.(in Chinese)
20王雪丽.基于RBF神经网络电液恒功率调速自整定PID控制[J].机床与液压,2016,44(22):115-117.WANG Xueli.Self-tuning PID control based on RBF neural network electro-hydraulic constant power speed regulation[J].Machine Tool&Hydraulics,2016,44(22):115-117.(in Chinese)