RU42109U1 - MAGNETIZING WAGON-DEFECTOSCOPE SYSTEM - Google Patents

Abstract

The utility model relates to the field of transport flaw detection of railway rails by examining magnetic parameters and detecting local defects, in particular by examining magnetic scattering fields, and relates to the construction of high-speed flaw detectors; the magnetizing system comprises solenoids 6 connected by a magnetic circuit to the axles of the wheelsets, arranged coaxially to the axes of the wheelsets 7 and covering the latter in the area bounded by the inner faces of the wheels 8, and mounted on the outer rings of the rolling bearings 9 mounted on the wheelset axis, the solenoid bodies being connected by a reactive rod 10 with the frame of the trolley 11; It is also envisaged to perform the system when the inner rings of bearings 9, bearing solenoids 6, are mounted on the ends of the sleeve 12 fixed by means of flanges 13 on the axis of the wheel pair 7. This design allows to increase the rigidity of the system, simplify installation and improve the parameters of its magnetic circuit.

Description

The utility model relates to the field of transport flaw detection of railway rails by studying magnetic parameters and detecting local defects, in particular, by studying the magnet of scattering fields, and relates to the construction of high-speed flaw detectors.

Known magnetizing systems of flaw detectors, containing solenoids located magnetically connected to the axles of the wheelsets, placed coaxially to the axes of the wheelsets and covering the latter in the area bounded by the inner faces of the wheels / see, for example, the description of the utility model “Magnetizing system of the flaw detector” No. 10465, published on July 16, 1999 by class G 01 N 27/83 /.

The disadvantages of the known structural implementation include the complexity of the installation of the system and the instability of the magnetic gap between the solenoid and the axis of the wheelset.

The objective of the proposed design is to simplify the installation of the system while ensuring a stable magnetic gap.

For this, the magnetizing system, containing solenoids connected coaxially to the axles of the wheelsets and magnetically connected to the axles of the wheelsets, is arranged in such a way that the solenoids are mounted on the outer rings of the rolling bearings mounted on the wheelset axis and the housing solenoids are connected by jet thrust to the frame of the trolley.

It is also possible to perform such a system when the inner rings of bearings carrying solenoids are mounted on the ends of the sleeve fixed by means of flanges on the axis of the wheelset.

figure 1 - General view of the car-flaw detector;

figure 2 is a diagram of a magnetizing system (type a in figure 1);

figure 3 - structural design of the magnetizing system;

figure 4 - wheelset mounted on it with a solenoid;

figure 5 is a view a in figure 4;

Fig.6 is a view of B in Fig.4.

The flaw detector car includes a body 1 mounted on running trolleys 2, carrying measuring and recording equipment 3, an investigating signal coming from magnetic field sensors 4 located above the rail head and mounted on the middle trolley 5.

The magnetizing system of a flaw detector car contains solenoids 6 placed coaxially to the axles of the wheelsets 7, which cover the latter in the area bounded by the inner faces of the wheels 8, moreover, the solenoids are mounted on the outer rings of the rolling bearings 9 mounted on the axis of the wheelset 7, and the solenoid bodies are connected by a reactive traction 10 with the frame of the trolley 11, while the magnetic flux of the solenoids through the wheel pairs enters the rail threads and closes, forming a magnetic circuit.

To simplify installation, the system can be made so that the inner rings of the bearings 9, bearing solenoids, are installed at the ends of the sleeve 12 fixed by means of flanges 13 on the axis of the wheelset 7.

Thus, the proposed structural embodiment allows to simplify the assembly and installation of the magnetizing system, as well as to improve its parameters, mainly due to the provision of minimum magnetic gaps and their stability during movement of the flaw detector.

Claims (2)

1. Magnetizing system of a flaw detector car, containing solenoids connected by a magnetic circuit to the axles of the wheelsets, placed coaxially to the axes of the wheelsets and covering the latter in the area bounded by the inner faces of the wheels, characterized in that the solenoids are mounted on the outer rings of the rolling bearings mounted on the axis of the wheelset and the solenoid bodies are connected by jet thrust to the frame of the trolley. 2. The system according to claim 1, characterized in that the inner rings of the bearings carrying the solenoids are mounted on the ends of the sleeve, fixed by means of flanges on the axis of the wheelset.