Pantograph slide of electric rolling stock
The pantograph runner with a flexible membrane and air pressure control system addresses the issue of unregulated aerodynamic lift, improving wear resistance and current collection reliability.
Patent Information
- Authority / Receiving Office
- RU · RU
- Patent Type
- Patents
- Current Assignee / Owner
- FEDERALNOE GOSUDARSTVENNOE BYUDZHETNOE OBRAZOVATELNOE UCHREZHDENIE VYSSHEGO OBRAZOVANIYA OMSKIJ GOSUDARSTVENNYJ UNIV PUTEJ SOOBSHCHENIYA
- Filing Date
- 2025-12-11
- Publication Date
- 2026-07-10
AI Technical Summary
Conventional pantograph runners for electric rolling stock fail to regulate aerodynamic lift effectively, leading to increased mechanical and electrical wear due to external factors like speed and direction of movement, which affects reliable current collection.
Incorporating a flexible rubber-cord membrane in the pantograph runner base, connected to an air pressure regulator, speed, and direction sensors, allowing for dynamic adjustment of aerodynamic lift through air pressure control.
Enables adjustable aerodynamic lift regulation, reducing mechanical and electrical wear, thereby enhancing the reliability and efficiency of current collection.
Smart Images
Figure 00000001_ABST
Abstract
Description
[0001] The invention relates to electrified railway transport, namely to pantographs of electric rolling stock.
[0002] The closest to the claimed one is a pantograph runner of an electric rolling stock, comprising a housing equipped with an upper horizontal plane on which contact elements are fixed, a base and inclined walls (Patent No. 104119 for a utility model (RF), IPC B60L 5 / 00. Pantograph runner of an electric rolling stock / G.P. Maslov, M.A. Dyatlova, A.P. Starikov / / - No. 2010147768 / 11; Claimed 23.11.2010; Published 10.05.2011; Bulletin No. 13).
[0003] A disadvantage of the conventional pantograph runner for electric rolling stock is the inability to regulate its aerodynamic lift. In real-world conditions, aerodynamic lift depends on external factors, including the speed of the rolling stock. Furthermore, the runner's lift must be different when the pantograph is moving forward and backward, due to the different aerodynamic lift forces generated by asymmetrically designed pantographs when moving in different directions. Excessive pressure leads to increased mechanical wear, while insufficient pressure leads to increased electrical erosion wear. Therefore, to maintain reliable current collection, it is necessary to ensure that the lift generated by the runner varies depending on the above factors.
[0004] The aim of the invention is to expand the functional capabilities of the pantograph skid of an electric rolling stock.
[0005] The stated objective is achieved by the fact that in the known pantograph runner of an electric rolling stock, comprising a housing equipped with an upper horizontal plane on which contact elements are fixed, a base and inclined walls, part of the base is made in the form of a flexible rubber-cord membrane, and the internal cavity of the housing forms a sealed volume connected by means of an air duct to a pneumatic line through an air pressure regulator, the input of which is connected to the driver's console and the outputs of the speed and direction sensors of the electric rolling stock.
[0006] The figure shows a diagram of the pantograph runner of an electric rolling stock.
[0007] The pantograph skid of an electric rolling stock comprises a housing 1 equipped with an upper horizontal plane to which contact elements 2 are attached, a base, and inclined walls. Part of the base is formed by a flexible rubber-cord membrane 3, and the internal cavity of the housing forms a sealed volume connected via an air duct to the pneumatic line through an air pressure regulator 4, the inlet of which is connected to the driver's control panel 5 and the outputs of the speed sensor 6 and direction sensor 7 of the electric rolling stock.
[0008] The pantograph runner of an electric rolling stock operates as follows.
[0009] Contact elements 2, installed on housing 1, interact with the constant wire and provide current collection from the contact suspension.
[0010] In the initial state, the membrane 3 is not stretched and forms a single plane with the base of the frame 1. If it is necessary to reduce the lifting force of the pantograph runner, excess pressure is created in the cavity of the frame 1 using the pressure regulator 4, which leads to stretching of the membrane (highlighted by the dotted line in the figure) and a change in the shape of the base of the frame, causing an acceleration of the air flow and, accordingly, an increase in the downward force. The required pressure maintained in the cavity of the frame 1 is determined by the pressure regulator 4 based on data received from the speed sensors 6 and the direction of movement 7. Monitoring of the operation and adjustment of the pressure in the cavity of the frame 1, if necessary to change the aerodynamic lifting force of the runner, are carried out using the driver's control panel 5.
[0011] The use of the proposed pantograph skid for electric rolling stock will expand its functionality by regulating the aerodynamic lift by changing the shape of the base of its frame.
Claims
A pantograph runner for an electric rolling stock, comprising a housing equipped with an upper horizontal plane on which contact elements are secured, a base and inclined walls, characterized in that part of the base is made in the form of a flexible rubber-cord membrane, and the internal cavity of the housing forms a sealed volume connected by means of an air duct to a pneumatic line through an air pressure regulator, the input of which is connected to the driver's console and the outputs of the speed and direction sensors of the electric rolling stock.