CS259912B1 - Device for electric current draun and supply - Google Patents

Abstract

A device for taking and supplying electric current from a two- and multi-pole overhead line to the power terminals of a traction vehicle, the arms of which are terminated by a rail. A chain of mutually insulated rails is fixed to the rail in an insulated manner. The length of the rails is less than the spacing of adjacent poles of the overhead line. A group of serially connected valves is inserted between the power terminals, where one of the rail outlets is connected to each of the valves.

Description

The invention solves a device for taking and supplying electric current from two- and multi-pole overhead contact lines to the power terminals of a traction vehicle.

[0004] The hitherto known devices for the collection and supply of electric current from a double-pole overhead contact line generally consist of the heads of the supported arms which are part of the lever. The arm carries either a single warhead or a group of warheads. The contact force of the head on the catenary is most often exerted by a spring. This is also the case for trolleybus pantographs, where one trolley arm is directed towards each trolley and this generally carries one carbon-coated head. A groove is formed in the carbon in which the trolley fits. The inconsistency of the trolleybus and trolley carriageway, as well as the peculiarities of road traffic, cause frequent pick-up of the pantograph head from contact with the contact wire, resulting in a power cut.

For this experience, the rail vehicles withdrew from the carbon-headed pantographs and moved to pantographic and semi-pantographic structures with a rail transverse to the trolley. However, this design solution is only feasible so far for rail vehicles, where the rail determines the path of the vehicle and the trajectory of the trolley is then adapted to this path.

In the case of a multi-pole line, each header is then assigned one pantograph rail which, as a result of the rail guidance of the vehicle, is always directed against the respective pole of the trolley.

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None of the design solutions is suitable for trolleybuses. However, it is known to apply a skid transversely mounted on the pantograph to the trolley. The skid is divided into partial skids isolated from each other and isolated from the skid carrier on the collector. Each sub-skid is incorporated between a pair of valves that are connected to the traction vehicle terminals. This solution is characterized by a considerable consumption of valves, which increases the structural complexity of the solution.

The aforementioned drawbacks are eliminated by the device for the collection and supply of electric current from two- and multi-pole overhead contact lines to the supply terminals of the traction vehicle. The collector arms are terminated by a bar on which a chain of mutually insulated skids is fixed in isolation. The length of the rails is less than the pitch of adjacent poles of the overhead contact line. A series of series connected valves is included between the power terminals. Each of the valves is provided with one of the rail outlets. The skids overlap each other at least partially. At least some terminals are fitted with a fuse.

By attaching the rails to the pantograph rail, where each outlet is routed to the valves in series between the power terminals, a device has been created to ensure trouble-free power consumption with current trolleybus trolley wiring, and to eliminate complex crossover and crossing designs. disorders.

An exemplary embodiment of the device according to the invention is shown in a partial axonometric view in FIG. 1 and in an overall schematic view in FIG. 2. The construction of the skids is indicated in FIG.

The device according to the invention for the consumption and supply of electric current from the two-pole line 1 to the power terminals 2 consists of a bar 4 terminating the header arms Insulated rails 5 in the chain are insulated to one another in an insulated manner. The length of the rails is smaller than the spacing of the two poles of the overhead contact line L · A series of series connected valves j> is inserted between the supply terminals 2. One of the outlets 7 of the rails 5 is connected to each of the valves 6.

When the rail 5 with the rails 5 travels along the contact line 1, at least a pair of rails 5 always contact the two poles of the contact line 1. The sensed current is fed through terminals T to the valves 6 through fuses 8, which supply the terminals 2 of the traction vehicle.

Accordingly, the device according to the invention can also be designed for a three-phase overhead contact line and thyristors can be installed in the alternating current of the valve location.

Claims (3)

1. Equipment for the collection and supply of electricity from two or more poles to the traction vehicle power terminals, where the pantograph arms are terminated by a rail on which an insulated chain of mutually insulated rails is insulated with a length less than the spacing of adjacent poles A series of serially connected valves (6) is interposed between the power terminals (2), wherein each of the valves (6) is provided with one of the terminals (7) of the rails (5). Device according to claim 1, characterized in that the skids (5) overlap each other at least partially. Device according to Claims 1 and 2, characterized in that at least some of the outlets (7) are fitted with a fuse (8).