液压压紧式牵引传动装置传动效率研究
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摘要
以自行设计的液压压紧式牵引传动装置为基础,针对装置传动过程中的自旋功率损失和滑动功率损失进行了理论研究,结合弹流润滑理论对内、外摩擦副的牵引特性进行了数学建模,并通过多重网格方法进行了联合求解,从而获得了系统的传动效率及其变化规律.研究结果表明:液压压紧式牵引传动装置具有转速高、功率大的传动特性,通过控制液压压紧力,可使传动装置的传动效率达到95.5%以上;自旋功率损失随着传动比的增加呈现出先减后增的变化规律,滑动功率损失随着传动比的增加而减小,当传动比大于0.5时,滑动功率损失趋于稳定;系统的效率随着传动比的增加呈现出先减后增的变化过程.
A hydraulic clamp type traction transmission device was fabricated to theoretically investigate the spin power loss and the sliding power loss during transmission.The mathematical model of the internal and external friction traction characteristics was established with the EHL theory.The internal and external friction EHL equation was jointly solved by the multi-grid method,and the transmission efficiency of the system and its variation were achieved.The results show that the hydraulic clamp type traction transmission device has a transmission character of high speed and high power.The transmission efficiency of continuously variable transmission in the whole ratio range can be above 95.5% by controlling the hydraulic clamp force.The spin power loss decreases first and then increases with an increase in the transmission ratio.The sliding power loss decreases with an increase in the transmission ratio,and it tends to be stable when the transmission ratio is greater than 0.5.These results indicate that the transmission efficiency decreases first and then increases with an increase in the transmission ratio.
A hydraulic clamp type traction transmission device was fabricated to theoretically investigate the spin power loss and the sliding power loss during transmission.The mathematical model of the internal and external friction traction characteristics was established with the EHL theory.The internal and external friction EHL equation was jointly solved by the multi-grid method,and the transmission efficiency of the system and its variation were achieved.The results show that the hydraulic clamp type traction transmission device has a transmission character of high speed and high power.The transmission efficiency of continuously variable transmission in the whole ratio range can be above 95.5% by controlling the hydraulic clamp force.The spin power loss decreases first and then increases with an increase in the transmission ratio.The sliding power loss decreases with an increase in the transmission ratio,and it tends to be stable when the transmission ratio is greater than 0.5.These results indicate that the transmission efficiency decreases first and then increases with an increase in the transmission ratio.
引文
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张慧贤,寇子明,吴娟,等.液压激波作用下管道流固耦合的动力学建模.2012,46(3):94-99.
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李奎,刘荣强,姜生元,等.具有月面适应性的月球车着陆释放机构.2011,45(9):28-33.
闻德生,张勇,王志力,等.三作用多泵多马达输出转速和转矩的理论分析.2011,45(3):81-84.
邓星桥,向中凡,王进戈.加工和安装误差对无侧隙蜗杆传动接触线及齿廓的影响.2011,45(2):111-116.
于安才,姜继海.液压混合动力挖掘机回转装置控制方式的研究.2011,45(7):30-33.
卢为,成永红,王增彬,等.环氧及其复合材料在变压器油中的快脉冲闪络特性.2010,44(10):83-87.
任燕,阮健,贾文昂.2D阀控电液激振器偏置控制的特性分析.2010,44(9):82-86.
华成,张庆,徐光华,等.具有小世界特性的复杂液压系统故障源搜索方法.2010,44(7):79-84.
宿月文,朱爱斌,陈渭,等.履带机械地面力学建模及牵引性能仿真与试验.2009,43(9):42-45.
江小霞.三向地震模拟平台控制系统的研究.2009,43(10):16-21.
魏树国,赵升吨,张立军,等.直驱泵控式液压机液压系统的动态特性仿真及优化.2009,43(7):79-82.
郑军,曹兴进,张光辉.传动装置中磁流变液瞬态流动特性的数值计算.2007,41(9):1053-1057.
[2]LI Zhong,QIN Datong.Transmission characteristicsof half-toroidal traction drive continuously variabletransmission[J].China Mechanical Engineering,2005,16(6):490-494.
[3]IMANISHI T.Development of high power-densitydouble cavity half toroidal CVT[C]∥The JSME Inter-national Conference on Motion and Power Transmis-sions.Fujuoka,Japan:JSME,2001:860-863.
[4]丰田自动车株式会社.环形无级变速器:中国,200910164830[P].2010-02-10.
[5]马自达汽车株式会社.环型无级变速传动系统:中国,98800604.9[P].1997-03-22.
[6]周有强.机械无级变速器[M].北京.机械工业出版社,2001.
[7]CRETU O S,GLOVNEA R P.Traction drive withreduced spin losses[J].Journal of Tribology,2003,125:507-512.
[8]WEI Chao,SHEN Chujing,YUAN Shihua.Analysismethods of power characteristics for hydraulic pressingof the traction drive device[J].Advanced MaterialsResearch,2011,301/302/303:1458-1463.
[9]DELKHOSH M,SAADAT M.Geometrical optimiza-tion of half toroidal continuously variable transmissionusing particle swarm optimization[J].Scientia Irani-ca,2011,18(5):1126-1132.
[10]MACHIDA M,MURAKAMI Y.Development of thehalf toroidal CVT PowerToros unit[J].NSK Techni-cal Journal,2000,669:9-22.
[11]温诗铸,杨沛然.弹流流体动力润滑[M],北京:清华大学出版社,1992:69-70.
[12]TEVAARWERK J L,JOHNSON K.The influence offluid rheology on the performance of traction drives[J].Transactions of the ASME:Journal of Lubrica-tion technology,1979,101(3):266-274.
[13]SANDA S,HAYAKAWA K.Traction drive systemand its characteristics as power transmission[J].R&D Review of Toyota CRDL,2005,40:30-39.
[14]杨沛然.流体润滑数值分析[M].北京:国防工业出版社,1998:69-71.
张慧贤,寇子明,吴娟,等.液压激波作用下管道流固耦合的动力学建模.2012,46(3):94-99.
李学伟,赵万华,卢秉恒.轨迹误差建模的多轴联动机床轮廓误差补偿技术.2012,46(3):47-52.
李奎,刘荣强,姜生元,等.具有月面适应性的月球车着陆释放机构.2011,45(9):28-33.
闻德生,张勇,王志力,等.三作用多泵多马达输出转速和转矩的理论分析.2011,45(3):81-84.
邓星桥,向中凡,王进戈.加工和安装误差对无侧隙蜗杆传动接触线及齿廓的影响.2011,45(2):111-116.
于安才,姜继海.液压混合动力挖掘机回转装置控制方式的研究.2011,45(7):30-33.
卢为,成永红,王增彬,等.环氧及其复合材料在变压器油中的快脉冲闪络特性.2010,44(10):83-87.
任燕,阮健,贾文昂.2D阀控电液激振器偏置控制的特性分析.2010,44(9):82-86.
华成,张庆,徐光华,等.具有小世界特性的复杂液压系统故障源搜索方法.2010,44(7):79-84.
宿月文,朱爱斌,陈渭,等.履带机械地面力学建模及牵引性能仿真与试验.2009,43(9):42-45.
江小霞.三向地震模拟平台控制系统的研究.2009,43(10):16-21.
魏树国,赵升吨,张立军,等.直驱泵控式液压机液压系统的动态特性仿真及优化.2009,43(7):79-82.
郑军,曹兴进,张光辉.传动装置中磁流变液瞬态流动特性的数值计算.2007,41(9):1053-1057.
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