Derailment detection device and derailment detection method for railway vehicles

Abstract

To enable derailment of a railroad vehicle to be surely detected with a simple configuration and at low cost by making a sensor installed on a top face of a fall prevention frame of an axle detect a fall of the axle.SOLUTION: In a derailment detection device for a railroad vehicle including a sensor installed on a truck of a railroad vehicle, and a determination device for determining derailment on the basis of an output signal of the sensor, the sensor is installed on the top face of a fall prevention frame of an axle in the truck to detect a fall of the axle.SELECTED DRAWING: Figure 1

Claims

1. A railway vehicle derailment detection device comprising a sensor installed on the bogie of the railway vehicle and a determination device that determines derailment based on the output signal of the sensor, The ends of the axle in the aforementioned bogie are supported by axle boxes. The derailment detection device for a railway vehicle is characterized in that the sensor is installed on the upper surface of the frame preventing the axle from falling, and detects the axle from falling by detecting contact with the lower surface of the axle box body of the axle box.

2. The derailment detection device for a railway vehicle according to claim 1, wherein the axle fall prevention frame is an axle box support disposed near the lower end of the axle box support in the bogie.

3. The derailment detection device for a railway vehicle according to claim 2, wherein the axle box is slidable in the vertical direction along the axle box rib.

4. The derailment detection device for a railway vehicle according to any one of claims 1 to 3, wherein the determination device notifies the crew of the railway vehicle of the determination result.

5. A step in which a sensor installed on the upper surface of a frame to prevent the axle from falling, which is an axle in a bogie of a railway vehicle and is supported near both ends by axle boxes, detects contact between the sensor and the lower surface of the axle box body of the axle box, thereby detecting the axle falling. A method for detecting a derailment of a railway vehicle, characterized in that the determination device includes the step of determining derailment based on the output signal of the sensor.

Images