动车组六连杆联轴器力学性能试验设计及应用

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中图分类号：U260.332 文献标志码：B doi：10.20213/j.cnki.tdcl.2025.03.005

文章编号：1002-7602（2025）03-0094-07

Abstract：Six-link coupling，as the most critical transmission and vibration damping component in the power system of a new EMU，plays a critical role in improving the safety and comfort of vehicle operation. To improve the accuracy of test data and the ability of combined load test of six-link coupling，this paper introduces the structure and principle ofa new type of six-link coupling，proposes schemes for radial and axial stiffness tests，high-precision torsional stifness test with large torque and smal torsional angle，and a threeway combined load test of the new coupling.The new scheme is used to test the radial，axial and torsional stiffness of the coupling，which is compared with the existing test scheme of elastic coupling for low-floor cars. The results indicate that thedesign structure of the new test schemeis reasonable，and the shortcomings of the existing test technologies are solved. Compared with the traditional test scheme，the new test scheme can measure the torsional stiffness of the coupling more accurately，realize the three-way combined load test， simulate the actual working conditions of the coupling more realistically，and achieve the purpose of improving the data accuracy and test capability. The research results play a guiding role in the development and testing of rail vehicle coupling.

Key words： rail transit；coupling； vibration reduction； mechanical properties；experimental study

六连杆联轴器（以下简称联轴器）是动车组驱动装置中最关键的传动部件，联轴器一端连接齿轮箱，另一端连接车轮，通过联轴器将齿轮箱的扭矩有效传递给车轮，通过安装在联轴器两端的橡胶关节实现径向和轴向的位移补偿，同时降低了传递过程中的振动和冲击，进而提升了动车组运行时的安全性和舒适性。（剩余8103字）