工程科学学报，第37卷，第9期：1183-1190,2015年9月 Chinese Journal of Engineering,Vol.37,No.9:1183-1190,September 2015 D0l:10.13374/j.issn2095-9389.2015.09.011:http://journals.ustb.edu.cn 液压凿岩机双缓冲系统性能参数优化设计 李叶林，马飞四，耿晓光 北京科技大学机械工程学院，北京100083 ☒通信作者，E-mail:yeke@ustb.cdu.cm 摘要针对以往分析凿岩机入射应力波为定值的情况，基于应力波在不同介质中传递原理，计算经过多次透射和反射到达 缓冲活塞的应力波大小，并运用傅里叶级数推导入射应力波模型.采用应变片实验法测试入射应力波波形，依据实验结果对 入射应力波模型进行修正.基于牛顿力学理论，构建双缓冲系统的蓄能器等效刚柔耦合模型和双缓冲机构模型.借助Matlab 工具，分析缓冲活塞运动规律以及一、二级缓冲腔压力变化规律.采用多目标优化方法对双缓冲系统的性能参数进行优化， 获得双缓冲系统性能参数的最优参量：缓冲流量8.5L·min、环形间隙0.017mm、蓄能器初始充气压力2.3MPa以及工作压 力7.6MPa. 关键词液压凿岩机：缓冲：性能参数：优化设计：多目标优化 分类号TH123◆.2 Optimal design of performance parameters for the double damping system of a hydraulic rock drill LI Ye-lin,MA Fei,GENG Xiao-guang School of Mechanical Engineering,University of Science and Technology Beijing,Beijing 100083,China Corresponding author,E-mail:yeke@ustb.edu.cn ABSTRACT For the case of constant stress wave input in analyzing a hydraulic rock drill,the value of stress waves which arrived the damping piston was calculated after many transmissions and reflections.Based on the transfer principle of stress waves in different media,a variable input model was deduced by the Fourier transform.The stress wave forms were tested by using a strain gauge and the variable input model was revised according to the test results.An equivalent rigid-flexible model of the accumulator and a structure model of the double damping system were established based on Newton's theory.The damping piston movement laws and the pressure change laws of order I and order 2 damping chambers were analyzed.The performance parameters of the double damping system were summarized and optimized by a multi-objective optimization method.The optimized results show that the flow of the damping system is 8.5 L'min-,the annular clearance is 0.017 mm,the inflation pressure of the accumulator is 2.3 MPa and the working pressure is 7.6 MPa. KEY WORDS hydraulic rock drills;damping:performance parameters:optimal design:multi-objective optimization 随着矿山开采的规模化以及隧道掘进的大型化， 石的物理特性不同，传递过程中应力波在其接触面会 发展重型液压凿岩机双缓冲技术已成为重要趋势.国 产生透射和反射.沿钎具反射回凿岩机的应力波能量 内外的专家学者针对重型液压凿岩设备的研制做出了 主要由缓冲系统吸收.缓冲系统经历了从机械缓冲到 大量努力0.凿岩机工作时，冲击活塞撞击钎具产生 油液缓冲，从单缓冲到双缓冲的过程.其中双缓冲系 应力波，应力波通过钎具传递至岩石·由于钎具与岩 统成为重型液压凿岩机标志性技术，避免应力波在钎 收稿日期：201501-20 基金项目：国家高技术研究发展计划资助项目(2011AA060401)工程科学学报，第 37 卷，第 9 期: 1183--1190，2015 年 9 月 Chinese Journal of Engineering，Vol． 37，No． 9: 1183--1190，September 2015 DOI: 10． 13374 /j． issn2095--9389． 2015． 09． 011; http: / /journals． ustb． edu． cn 液压凿岩机双缓冲系统性能参数优化设计 李叶林，马 飞，耿晓光 北京科技大学机械工程学院，北京 100083  通信作者，E-mail: yeke@ ustb． edu． cn 摘 要 针对以往分析凿岩机入射应力波为定值的情况，基于应力波在不同介质中传递原理，计算经过多次透射和反射到达 缓冲活塞的应力波大小，并运用傅里叶级数推导入射应力波模型． 采用应变片实验法测试入射应力波波形，依据实验结果对 入射应力波模型进行修正． 基于牛顿力学理论，构建双缓冲系统的蓄能器等效刚柔耦合模型和双缓冲机构模型． 借助 Matlab 工具，分析缓冲活塞运动规律以及一、二级缓冲腔压力变化规律． 采用多目标优化方法对双缓冲系统的性能参数进行优化， 获得双缓冲系统性能参数的最优参量: 缓冲流量 8. 5 L·min － 1 、环形间隙 0. 017 mm、蓄能器初始充气压力 2. 3 MPa 以及工作压 力 7. 6 MPa． 关键词 液压凿岩机; 缓冲; 性能参数; 优化设计; 多目标优化 分类号 TH123 + . 2 Optimal design of performance parameters for the double damping system of a hydraulic rock drill LI Ye-lin，MA Fei  ，GENG Xiao-guang School of Mechanical Engineering，University of Science and Technology Beijing，Beijing 100083，China  Corresponding author，E-mail: yeke@ ustb． edu． cn ABSTＲACT For the case of constant stress wave input in analyzing a hydraulic rock drill，the value of stress waves which arrived the damping piston was calculated after many transmissions and reflections． Based on the transfer principle of stress waves in different media，a variable input model was deduced by the Fourier transform． The stress wave forms were tested by using a strain gauge and the variable input model was revised according to the test results． An equivalent rigid-flexible model of the accumulator and a structure model of the double damping system were established based on Newton’s theory． The damping piston movement laws and the pressure change laws of order 1 and order 2 damping chambers were analyzed． The performance parameters of the double damping system were summarized and optimized by a multi-objective optimization method． The optimized results show that the flow of the damping system is 8. 5 L·min － 1 ，the annular clearance is 0. 017 mm，the inflation pressure of the accumulator is 2. 3 MPa and the working pressure is 7. 6 MPa． KEY WOＲDS hydraulic rock drills; damping; performance parameters; optimal design; multi-objective optimization 收稿日期: 2015--01--20 基金项目: 国家高技术研究发展计划资助项目( 2011AA060401) 随着矿山开采的规模化以及隧道掘进的大型化， 发展重型液压凿岩机双缓冲技术已成为重要趋势． 国 内外的专家学者针对重型液压凿岩设备的研制做出了 大量努力［1］． 凿岩机工作时，冲击活塞撞击钎具产生 应力波，应力波通过钎具传递至岩石． 由于钎具与岩 石的物理特性不同，传递过程中应力波在其接触面会 产生透射和反射． 沿钎具反射回凿岩机的应力波能量 主要由缓冲系统吸收． 缓冲系统经历了从机械缓冲到 油液缓冲，从单缓冲到双缓冲的过程． 其中双缓冲系 统成为重型液压凿岩机标志性技术，避免应力波在钎