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作 者:魏栋梁[1] 姜仁坤 尹力[1] 田莹 孙守吉 Wei Dongliang;Jiang Renkun;Yin Li;Tian Ying;Sun Shouji(Sany Heavy Equipment Co.,Ltd.,Shenyang 110027,China;College of Mechanical and Electronic Engineering,Shandong University of Science and Technology,Qingdao 266590,China)
机构地区:[1]三一重型装备有限公司,沈阳110027 [2]山东科技大学机械电子工程学院,山东青岛266590
出 处:《煤矿机械》2025年第4期50-55,共6页Coal Mine Machinery
基 金:国家自然科学基金项目(52374159)。
摘 要:针对液压支架纯水大流量安全阀受冲击影响严重的问题,通过对安全阀单固体和流固耦合模态对比,结果表明:在安全阀处于常闭状态,流体介质对安全阀模态影响极小;在不同方向、冲击谱峰值下,安全阀的加速度、应力和应变响应值随加速度激励值增大而增大,垂向抗冲击能力最弱。通过对安全阀的垂向冲击响应谱研究发现,安全阀的加速度、应力和应变响应值随弹簧丝直径增大而减小。优化弹簧丝直径后,安全阀加速度、应力、应变响应值降低了33.6%、26%、20.7%,对大流量纯水安全阀抵抗冲击影响的设计有重要参考意义。Aiming at the problem of the serious impact on the pure water large flow safety valve of hydraulic support,through the comparison of single-solid and fluid-solid coupling modes,the results show that the fluid medium has little effect on the mode of the safety valve when the valve is in the normal closed state;The acceleration,stress and strain response values of the safety valve increases with the increase of the acceleration excitation value in different directions and the peak value of the impact spectrum,and the vertical impact resistance is the weakest.By studying the vertical impact response spectrum of the safety valve,it is found that the acceleration,stress and strain response values of the safety valve decrease with the increase of the diameter of the spring wire.After optimizing the diameter of the spring wire,the acceleration,stress and strain response values of the safety valve ware reduced by 33.6%,26%and 20.7%,respectively.It has important guiding significance for the design of large flow pure water safety valve.
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