The invention relates to the technical field of health monitoring of high-speed railway track structures, in particular to a ballastless track fastener supporting state monitoring device based on optical fiber sensing, which comprises a bearing assembly, an optical fiber sensing assembly and an optical fiber sensing assembly, and is characterized in that the bearing assembly comprises an elastic base plate and a through hole formed in the elastic base plate; the monitoring assembly comprises symmetrically arranged stress pieces, beam bodies arranged below the stress pieces respectively, mounting pieces arranged in the through holes and fixedly connected with the beam bodies respectively, and fiber bragg gratings arranged in the beam bodies. The device has the beneficial effects that the sensor is embedded into the inner cavity of the track fastener system, so that the direct influence of the external environment on the sensor is effectively prevented, the measurement accuracy and stability are improved, the service life of the sensor is greatly prolonged, and the maintenance cost is reduced; through the multiple sets of symmetrically-arranged beam bodies and the cushion blocks arranged at the two ends of the beam bodies correspondingly, when the internal structure of the track is abnormal, the state of the track structure is monitored in time.
本发明涉及高速铁路轨道结构健康监测技术领域,特别是一种基于光纤传感的无砟轨道扣件支撑状态监测装置,包括,承载组件,承载组件包括弹性垫板以及开设于弹性垫板内的通孔;监测组件,监测组件包括对称设置的受力件、分别设于各个受力件下方的梁体、设于所述通孔内并分别与各个所述梁体的固定连接的安装件以及设于所述梁体内部的光纤光栅。本发明的有益效果为:通过将本装置将传感器嵌入在轨道扣件系统的内部空腔中,不仅有效防止了外界环境对传感器的直接影响,提高了测量的准确性和稳定性,还大大延长了传感器的使用寿命,降低了维护成本;通过多组对称设置的梁体以及分别置于梁体两端的垫块,在轨道内部结构发生异常时,及时监测轨道结构的状态。
Ballastless track fastener supporting state monitoring device based on optical fiber sensing
一种基于光纤传感的无砟轨道扣件支撑状态监测装置
2025-01-10
Patent
Electronic Resource
Chinese
IPC: | B61K Andere Hilfseinrichtungen für Eisenbahnen , OTHER AUXILIARY EQUIPMENT FOR RAILWAYS / G01L Messen von Kraft, mechanischer Spannung, Drehmoment, Arbeit, mechanischer Leistung, mechanischem Wirkungsgrad oder des Drucks von Fluiden , MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE |
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