Regulating Characteristics of New Tamping Device Exciter Controlled by Rotary Valve
Regulating Characteristics of New Tamping Device Exciter Controlled by Rotary Valve
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DOI：
10.1109/tmech.2015.2438095
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发表时间：
2016-02
期刊：
影响因子：
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通讯作者：
Yi Liu;Guofang Gong;Huayong Yang;Dong-Seoup Han;He Wang
中科院分区：
文献类型：
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作者：
Yi Liu;Guofang Gong;Huayong Yang;Dong-Seoup Han;He Wang
捣固装置有一个共同的问题，即捣固工具的幅度和频率不能调节，因此太不灵活，不能满足不同的工作要求。为解决这一问题，根据现有捣固装置的技术参数，对新型捣固臂进行了数学建模和分析，并用解析法对新型旋转阀控制捣固激振器的结构进行了分析。考虑到新型捣固装置的可行性和实用性，确定了专用的电液激振器和旋转阀。然后，针对镇流条件的特点，研究了励磁器的控制特性、性能和动态运动。最后，通过试验验证了理论模型的正确性，新型捣固装置激振器具有良好的性能。
Tamping devices have a common problem that the amplitude and frequency of the tamping tool cannot be adjusted and, thus, are too inflexible to satisfy different working demands. In order to solve this problem, mathematical modeling and analysis of a new tamping arm are developed according to the technical parameters of the existing tamping devices, and the configuration of the new tamping exciter controlled by a rotary valve is analyzed using analytical method. Considering the feasibility and practicability of the new tamping device, the special electrohydraulic exciter and rotary valve are determined. Then, the control characteristic, performance, and dynamic motions of the exciter are studied in view of the ballast condition feature. Finally, the test verifies the theoretical model and the new tamping device exciter shows good performance.