SU498196A1 - The way to recognize the type of axlebox wheelset of a car when driving a train - Google Patents

Description

l reduced signals, we note that the amplitudes AfK of the axle signals with sliding bearings are significantly larger than the amplitudes L of the axle signals of axle bearing with rolling bearings; Duration Tek of a heat signal box with sliding bearings longer than the corresponding duration Tk of a box signal with rolling bearings. In addition, the cited signals differ in both the duration (tf..k) and the configuration of the leading edge.

When scanning an axle box with sliding bearings, the optical system first "inspects the bottom of the axle box and then the back wall of the axle box (an abrupt change in the temperature gradient along the scanning line). At the same time, when controlling an axlebox with rolling bearings, only a part of the front axle box cover gets into the viewing area of the optical system. The analysis of the signals from the books shows that the average values of the signs of these signals also differ markedly. Thus, the average amplitude of the LSL. Signals of axle boxes with sliding bearings is greater than the average amplitude of LSL to the signal of axle box with rolling bearings. The difference in the signs of signals of axle boxes with rolling bearings and axle boxes with sliding bearings is the basis of the proposed method for recognizing axle boxes but their type.

A device that implements the proposed method of recognizing the type of bookmarks, is relatively simple, and its use is most effective in the apparatus for detecting overheated boxes.

The proposed method of recognizing the type of box has, as compared with known methods, a series of sushi natural advantages. Thus, to use this method in the system for detecting overheated axle boxes (where its application is necessary first of all, since the omission of superheated axle boxes is coupled with the possibility of emergency situations), there is no need to install additional track reading devices, additional receive and amplifier paths. For the purpose of identifying the type of books, the amplification path of the main equipment of the system for detecting overheated books is used. This enhances the task of docking the axlebox type recognition device with the apparatus for detecting overheated axle boxes in trains.

The proposed method is free from the need to install a special shield-standard. The role of a constant temperature background is performed by dtsin.1, e of wagons, to which the floor reading devices are oriented. The bottom of the cars is not affected by solar radiation and weather conditions, which facilitates the task and reduces the likelihood of axle recognition error. Positive in the proposed method is also

That constant background modulation is carried out by the temperature relief of both axle boxes on sliding bearings and axle boxes on rolling bearings.

Claims (1)

Invention Formula The way to recognize the axlebox type of the wheelset of the car when the train is moving, based on registration using the receiver the infrared radiation effect of modulating a constant temperature background by the temperature field of the axle box, characterized in that, in order to increase the accuracy of recognition and simplification of the method, electrical signals of the infrared radiation receiver characterizing the temperature relief of the housings of the scanning line are analyzed, for example amplitude, duration, front, compare each of the signs or their combination with the given reference values of the signs and the result of the comparison navlivayut type controlled axle box. : mj