RU10465U1 - MAGNETIZING WAGON-DEFECTOSCOPE SYSTEM - Google Patents

Abstract

1. The magnetizing system of the flaw detector car, containing solenoids connected by a magnetic circuit to the axles of the wheelsets, characterized in that the solenoids are placed coaxially to the axles of the wheelsets, covering the latter in the area bounded by the inner faces of the wheels. 2. The system according to claim 1, characterized in that the solenoids are mounted directly on the axles of the wheelsets, and their windings are galvanically connected to a constant voltage source through current collection devices. The system according to claim 1, characterized in that the solenoids are mounted on the covers covering the axis of the wheelsets mounted on the trolleys of a flaw detector car. The system according to claim 3, characterized in that the casing covering the axles of the wheelsets is fixed by means of beams passed under the sidewalls of the trolleys and connected by traverses mounted on the axle boxes of the axles of the wheelsets, while the beams are connected at least at one point to the frame of the carriage. 5. The system according to claim 4, characterized in that the beams are connected to the trolley frame through the spring suspension springs.

Description

Magnetizing system of a flaw detector car

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 magnetic fields of scattering, and relates to the construction of high-speed flaw detectors.

Known magnetizing systems of flaw detectors containing solenoids connected by a magnetic circuit to the axles of the wheelsets / see, for example, a report on research work Creating a high-speed flaw detector based on ultrasonic and magnetic control methods; improvement of the magnetodynamic control method, 02/08/16.4 VNIIZhT, 1991, State Register. No. 01910049704, p. 51, Fig. 4.1 /.

The disadvantages of the known structural implementation should include the relative complexity of the magnetic circuit for transmitting magnetic flux on the axis of the wheelsets.

The objective of the proposed constructive implementation is to simplify the construction and optimize the parameters of the magnetic circuit.

For this, the magnetizing system of the flaw detector car, containing solenoids connected by a magnetic circuit to the axles of the wheelsets, is made so that the solenoids are placed coaxially to the axles of the wheelsets, covering the latter in the area bounded by the inner faces of the wheels.

According to this scheme, the system can be made in such a way that the solenoids are fixed on the axles of the wheelsets, and their windings are galvanically connected to a constant voltage source through current collector devices.

It is possible such a system when the solenoids are installed on the covers covering the axis of the wheelsets, which, in turn, are mounted on the carts of the flaw detector.

G 01 N 27/83

The casing covering the axles of the wheelsets can be fixed by means of beams passed under the sidewalls of the trolleys and connected by traverses mounted on the axle boxes of the wheelsets, and the beams themselves, at least at one point, are connected to the frame of the trolley, At the same time, the beams can be connected to the trolley frame and through spring suspension springs.

in FIG. 1 - shows a General view of a flaw detector car;

in FIG. 2 - schematically shows a magnetizing system with

current collection devices (view A in FIG. 1); in FIG. 3 - shows a structural embodiment of a magnetizing system with collector devices; in FIG. 4 - the same in plan;

in FIG. 5 - shows a constructive implementation of the magnetizing system with casings mounted on the frame of the wagon-flaw detector; in FIG. 6 - the same in plan;

in FIG. 7 - shows a constructive implementation of the magnetizing system with casings mounted on axle boxes of the axles of the wheelsets; in FIG. 8 - the same in plan; in FIG. 9 is a section BB in FIG. 6; in FIG. 10 is a cross section DD in FIG. eight; in FIG. 11 - node B in FIG. eight; in FIG. 12 is a section GG in FIG. eleven.

A flaw detector car includes a body 1 mounted on running trolleys 2 carrying measuring and recording equipment 3 examining the signal coming from the magnetic field sensors 4 located

over the rail head.

The magnetizing system of the flaw detector car contains solenoids 5 placed coaxially with the axles of the wheelsets 6, which cover the latter in the area bounded by the inner faces of the wheels 7, with

Moreover, the magnetic flux of the solenoids through the wheel pairs enters the rail threads and closes forming a magnetic circuit.

The solenoids 5 can be directly mounted on the axles of the wheelsets, while ensuring a constant (stable) minimum magnetic clearance with the axis; in this case, their windings must be galvanically connected to a constant voltage source 8 through current collection devices 9.

In case of refusal to use current collection devices, solenoids 5 can be installed on the covers 10 covering the axis of the wheelsets mounted on the carts 2 of the flaw detector using, for example, frames 11.

To ensure stable magnetic clearance of the casing 10 can be installed on the beams 12 skipped under the sidewalls 13 of the bogies, while the beams 12 are connected by traverses 14 which are mounted on the axle boxes 15 of the axles of the wheelsets and are connected at least at one point to the frame of the carriage 16, for example through the springs 17 spring suspension.

Thus, the proposed constructive implementation allows us to simplify the magnetic circuit and optimize its parameters, mainly due to the provision of minimal magnetic gaps and their stability during the movement of the flaw detector, while creating the prerequisites for reducing the influence of harmful scattering fields as interference sources.

Claims (5)

1. The magnetizing system of the flaw detector car, containing solenoids connected by a magnetic circuit to the axles of the wheelsets, characterized in that the solenoids are placed coaxially to the axles of the wheelsets, covering the latter in an area bounded by the inner faces of the wheels.  2. The system according to claim 1, characterized in that the solenoids are mounted directly on the axles of the wheelsets, and their windings are galvanically connected to a constant voltage source through current collector devices.  3. The system according to claim 1, characterized in that the solenoids are mounted on the covers covering the axis of the wheelsets mounted on the trolleys of the flaw detector car.  4. The system according to claim 3, characterized in that the casing covering the axles of the wheelsets is fixed by means of beams passed under the sidewalls of the trolleys and connected by traverses mounted on axle boxes of the axles of the wheelsets, while the beams are connected at least at one point to the frame carts. 5. The system according to claim 4, characterized in that the beams are connected to the trolley frame through the spring suspension springs.