A magnetic repulsion suspension pantograph

Abstract

The invention relates to the technical field of electrified railway locomotives, and discloses a magnetic repulsion type suspension pantograph, which includes a base, a bow head bracket and a carbon slide plate, the carbon slide plate is arranged on the bow head bracket, and the base is installed to drive the bow head bracket to rise and fall The electromagnetic mechanism includes an inner cylinder, an outer cylinder, a permanent magnet and an iron core. The carbon slide plate is set on the outer top of the outer cylinder, the inner cylinder is fixed on the base, the permanent magnet is set on the outer cylinder, the iron core is set on the inner cylinder, and the iron A solenoid is wound on the core, a control circuit board for controlling the excitation current in the solenoid is arranged on the base, and a pressure sensor is arranged inside the outer cylinder. The beneficial effects of the present invention are: the pressure sensor is used to monitor the pantograph-catenary contact pressure in real time, and feeds back to the control circuit board, and the control circuit board adjusts the excitation current according to the pressure value and the built-in control algorithm to ensure that the pantograph-catenary contact force is stable at the setting value, so as to ensure the pantograph-catenary flow quality.

Description

technical field [0001] The invention relates to the technical field of electrified railway locomotives, in particular to a magnetic repulsion type suspension pantograph. Background technique [0002] The main structure of the current pantograph is a double four-bar linkage mechanism. When the bow is raised, the solenoid valve of the bow is energized, and the expansion and deformation of the air bag drives the movement of the arm; when the bow is lowered, the solenoid valve is de-energized, the compressed air pressure in the air bag is reduced, and the pantograph falls down by its own gravity; During the work of the bow, it is difficult to actively and real-time control the lifting and lowering of the height of the bow head in a small range. When the contact pressure between the pantograph sliding plate and the catenary is not suitable, offline or too large, it is difficult to actively adjust the bow head. Lift to achieve a stable and continuous ideal contact pressure and co...

AI Technical Summary

Problems solved by technology

When the bow is raised, the electromagnetic valve for raising the bow is energized, and the air bag expands and deforms to drive the arm rod to move; when the bow is lowered, the solenoid valve is de-energized, the compressed air pressure in the air bag decreases, and the pantograph falls by its own gravity; During bow operation, it is difficult to actively and real-time control the small-scale height adjustment of the bow head. When the contact pressure between the pantograph slide plate and the catenary is inappropriate, off-line or too large, it is difficult to actively adjust the bow head Lifting to achieve a stable and continuous ideal contact pressure and continuous good pantograph-network relationship

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