SU1230895A1 - Device for feeding ferromagnetic abrasive under locomotive wheel - Google Patents

Description

This invention relates to railway transport and relates to devices for improving the adhesion of wheels to rails.

The purpose of the invention is to increase work efficiency by expanding the dosage range and increasing the abrasive feed rate.

The drawing shows the device, obsh, i view.

The internal cavity of the bunker 1, filled with abrasive ferromagnetic powder 2, communicates with the pipeline 3 through the channel 4 and the mixing chamber 5, which is located in the housing 6 between the permanent magnet 7 fixed on the channel 4 and the electromagnetic coil 8. The chamber 5 is equipped with a fitting 9 supply of compressed air.

The device works as follows.

In the bunker 1, the abrasive ferromagnetic powder 2 accumulates in the cross section of the channel 4 at the poles of the permanent magnet 7. If it is necessary to supply an abrasive under the locomotive wheel to the coil 8 from a current source (not shown), current pulses are supplied with a given frequency and duration. At the same time, chamber 5 is fed through nozzle 9 from the air master

RALI compressed air. Under the action of the prevailing magnetic field created by the coil 8, the abrasive grains are detached from the constipation created by the magnet 7 and jump from channel 4 to the mixing chamber 5, approaching the end of the coil 8. In the mixing chamber 5, a jet of compressed air discharged from fitting 9, picks up the powder 2 grains that have come off the constipation and transports them to the pipeline 3.

Moving through the pipeline 3, the jet of compressed air accelerates the abrasive grains to high speeds and throws them under the locomotive wheel, thereby increasing the adhesion of the wheel to the rail.

To stop the supply of abrasive, the coil 8 is de-energized and the supply of compressed air to the mixing chamber 5 is stopped.

As a result, the constipation from the powder grains 2 formed in the channel 4 at the poles of the magnet 7 prevents the powder 2 from spilling out arbitrarily.

The performance of the device is automatically controlled by varying the frequency and duration of the current pulses flowing through the coil 8.

Claims (1)

FERROMAGNETIC ABRASIVE FEEDING UNIT UNDER CO LOCOMOTIVE FOREST, containing a hopper with a permanent magnet for holding a ferromagnetic abrasive in it and a magnetic device for picking up a ferromagnetic abrasive, including an electromagnetic coil, characterized in that, in order to increase work efficiency by expanding the dosage range and increasing the feed rate of the abrasive, it is equipped the pipeline connected to the hopper and the compressed air supply channel connected to it, and the electromagnetic coil is located opposite the hopper outlet.