RU53821U1 - DEVICE FOR COMPENSATION OF AERODYNAMIC LIFTING POWER OF A SUSPENSION - Google Patents

Abstract

The aim of the proposed device is to limit the aerodynamic lifting force of the current collector at high speeds. A device for compensating aerodynamic lifting force, mounted on a synchronizer of a current collector of an electric locomotive, comprising a horizontal bearing surface with pivotally mounted screens, into the fastenings of which elastic elements are introduced. When airflow occurs, the screen tilts down, thereby creating a compensating aerodynamic lift.

Description

The device relates to the field of additional equipment of vehicles with electric traction.

Currently, fairways and reflectors are used on the main railways to reduce aerodynamic lift, which divert the air flow from the working area of the current collector. However, these devices significantly increase the drag of the latter.

Known devices mounted on a current collector, consisting of screens connected by rods [1]. The specified device is a prototype of this.

The disadvantage of this device is the rigid connection between the screens, which leads to the fact that the first along the direction of the screen is always in an inclined position, and the second is in a horizontal position. In this case, the angle of the screen does not depend on the speed of the acting air flow.

The aim of the proposed device is to limit the aerodynamic lifting force of the current collector at high speeds.

The device is shown in the figure.

This goal is achieved by the fact that in the device for compensating the aerodynamic lifting force of the current collector installed on the synchronizer 7 of the current collector of an electric locomotive, containing a horizontal bearing surface 1 with shields 2 fixed on it by hinges 3 and stops 6, restricting the movement of the screens, additionally,

at the points of attachment of the screens, elastic elements 4 located on the brackets 5 are introduced.

The device operates as follows.

When air flow occurs, the first screen 2 in the direction of travel deflects downward under the influence of aerodynamic force, increasing the length of the spring 4. The second screen receives additional air flow and presses the screen 2, which, under the action of the return spring 4, occupies a horizontal position. The movement of the screen is limited by an emphasis 6, the dimensions of which do not affect the aerodynamic lifting force of the current collector. The magnitude of the angle of deviation of the first in the direction of movement of the screen depends on the speed of the oncoming air flow, with increasing of which the deviation increases and, therefore, the compensating aerodynamic force created by the screen increases.

Compensation of the aerodynamic lifting force of the current collector leads to stabilization of contact pressing, which helps to reduce the wear of the contacting elements.

Literature

A.S.No. 706263. USSR, MKI ⁵ B 60 L 5/00. Current collector of electric rolling stock / I.A. Belyaev, V.A. Vologin, A.K. Kuznetsov, G.P. Maslov, V.M. Pavlov, B.A. Kharchenko.

Claims (1)

A device for compensating the aerodynamic lifting force of a current collector mounted on a synchronizer of a current collector of an electric locomotive, comprising a horizontal bearing surface with shields fixed to it by hinges and stops restricting the movement of the screens, characterized in that elastic elements located on the brackets are introduced into the points of connection of the screens.