CHANGE DETECTION METHOD OF TURNOUT ADHESION DEGREE AND MONITORING DEVICE FOR THE SAME

To provide a method by which a turnout is always monitored and an adhesion force change is detected.SOLUTION: A turnout adhesion degree monitoring device 1 comprises a data acquisition part 202, a vibration magnitude computing part 204 and an adhesion degree detection part 206. The data acquisition part acquires vibration data every changeover action of an electric switch machine which makes a turnout from one adhered state to another of either a normal side adhered state where a tongue rail adheres to a stock rail in a normal side or a reverse side adhered state where the tongue rail adheres to the stock rail in a reverse side. The vibration magnitude computing part computes, based on the vibration data, a separating period vibration magnitude indicating a vibration magnitude in one separating period during which an adhered state is dissolved and an adhering period vibration magnitude indicating a vibration magnitude in an adhering period during which another adhering is realized. The adhesion degree detection part detects a generation of a change of an adhesion degree with which a tongue rail adheres to a stock rail, based on vibration magnitudes during a separating period and an adhering period.SELECTED DRAWING: Figure 5 【課題】分岐器を常時監視して密着力の変化を検出できる新たな技術を提供すること。【解決手段】分岐器密着度合監視装置１は、定位側においてトングレールを基本レールに密着させる定位側密着状態と、反位側においてトングレールを基本レールに密着させる反位側密着状態とのうちの一方の密着状態から他方の密着状態へと分岐器を転換させる電気転てつ機の転換動作毎の振動データを取得するデータ取得部２０２と、振動データに基づいて、一方の密着状態を離間させる離間期の振動の大きさを示す離間期振動値と、他方の密着状態にさせる密着期の振動の大きさを示す密着期振動値とを算出する振動値算出部２０４と、離間期振動値および密着期振動値に基づいて、トングレールが基本レールに密着する密着度合に変化が生じたことを検出する密着度合検出部２０６とを備える。【選択図】図５