Railway axle hub unit
First Claim
1. A railway axle hub unit comprising an axle box housing for supporting a bearing, the unit being equipped with sensor means for detecting vibration in a generally vertical direction, said sensor means being mounted onto a stationary support element rigidly secured to the bearing, said sensor means being adapted for generating and transmitting signals indicative of the detected level of vibration to an electronic processing unit on board of a railway vehicle or train, whereby said processing unit is capable of signaling in real time an impending failure and/or a damaged condition associated with said monitored hub unit, wherein said stationary support element is a sealing annular insert of sheet metal.
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Accused Products
Abstract
A railway axle hub unit of the type including an axle box housing (1) for supporting a bearing, is provided with a sensor body (3, 9) containing sensors (4, 5) for detecting vibration in the vertical direction and the horizontal axial direction. The sensor body is mounted onto a stationary support element (2, 1, 15) rigidly secured to the bearing, preferably an annular sealing insert. The sensors perform monitoring of the operation condition of the hub unit by generating and transmitting signals indicative of the detected level of vibration to an electronic processing unit mounted on board of the railway vehicle or the train. The processing unit is capable of signalling in real time an impending failure and/or a damaged condition associated with the monitored hub unit.
30 Citations
9 Claims
- 1. A railway axle hub unit comprising an axle box housing for supporting a bearing, the unit being equipped with sensor means for detecting vibration in a generally vertical direction, said sensor means being mounted onto a stationary support element rigidly secured to the bearing, said sensor means being adapted for generating and transmitting signals indicative of the detected level of vibration to an electronic processing unit on board of a railway vehicle or train, whereby said processing unit is capable of signaling in real time an impending failure and/or a damaged condition associated with said monitored hub unit, wherein said stationary support element is a sealing annular insert of sheet metal.
Specification