Magnetic rail braking device

Abstract

The invention belongs to the technical field of rail vehicle braking. The magnetic rail braking device is connected with a rail vehicle and arranged on a bogie of the rail vehicle. The magnetic rail braking device comprises an electromagnet, a pole shoe, a hanging mechanism and a guiding and bearing part, wherein the electromagnet comprises an iron core with a formed whole body and an electromagnetic coil, a protective cover and a junction box which are installed on the iron core, the pole shoe is connected with the electromagnet, arranged between the electromagnet and the rail and makes contact with a rail to generate friction braking force when the pole shoe is located at a braking position, a magnetic rail braking unit composed of the electromagnet and the pole shoe is hung on the rail vehicle by the hanging mechanism, the guiding and bearing part is used for guiding the magnetic rail braking unit to move between a non-braking position and the braking position and transferring the braking force generated by the pole shoe when the pole shoe is located at the braking position to the rail vehicle. According to the magnetic rail braking device, the whole iron core and the rigid pole shoe are used, and the pole shoe and the thickness of a block board are optimized reasonably; the magnetic rail braking device has the advantages that the structure is simple, the electromagnetic loss is less, and the cost is lower and the like.

Description

technical field [0001] The invention belongs to the technical field of rail vehicle braking and is suitable for braking systems of low-floor urban rail vehicles or urban trams. More specifically, the present invention relates to a magnetic track braking device for a rail vehicle. Background technique [0002] With the rapid development of urban rail transit, vehicle braking systems have also developed different forms to meet different safety requirements. Although the running speed of urban trams is not high, because of the mixed running with cars and other ground vehicles, the traffic conditions are complex, the braking system is required to be safe and reliable, and the braking distance is short. need. [0003] The magnetic rail brake device is not limited by the adhesion of the wheel and rail, and the emergency braking effect is remarkable, stable and reliable, which can improve driving safety and operating efficiency, and the excitation power is small, the power supply...

AI Technical Summary

Problems solved by technology

This kind of iron core is prone to assembly gaps or casting defects during the manufacturing process, which increases the reluctance of the iron core, weakens the magnetic force of the electromagnet, and reduces the braking effect of the magnetic track brake device.

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