SU902130A1 - Device for current supply - Google Patents

Description

(54) DEVICE FOR CURRENT SUPPLY

The invention relates to electrical engineering, in particular to devices for current supply to mobile receivers.

A device for a current lead containing a flexible cable, one end connected to a current source and the other to a moving current receiver, has a mechanism for supplying a cable with a rotating drive and a switch for controlling the operation of the rotating drive 1.

A disadvantage of the known device is the considerable tensile forces acting on the cable when the current receiver is moved.

The purpose of the invention is to increase reliability by reducing the tensile forces acting on the cable.

The goal is achieved by the fact that the cable feeding mechanism is made in the form of two rollers, one of which is connected to the rotational drive, and the other is provided with a drive for its reciprocating movement in the direction perpendicular to the cable axis, while the drive zan with a switch.

Pa figs. 1 shows the device, a general view; in fig. 2 - the same, top view; in fig. 3 is a section A-A in FIG. one.

Claims (1)

The device comprises a flexible cable 1, one end connected to a mobile current collector 2, for example a trolley, the second end of cable 1 is connected to the terminal box 3 of the current source. The cable box consists of a guide vane 4 and a coil former 5, made in the form of a cone. The guide vanes are made in the form of a body with two parallel axes 6, on which two blocks 7 are installed. The blocks 7 have the ability to rotate freely and are arranged one after the other along the track. The saddles of the blocks are located above the sliding surface of the cable and its minimum contact with the sliding surface, which reduces the wear of the cable. The sending device 4 is provided with baffles 8, which prevent the cable from being pinched between the flanges of the blocks 7. The blocks 7 are installed so that an opening is formed between them, into which the flexible cable 1 passes with a small gap. Under the guide device 4 there is a device for moving the cable 9 consisting of a base 10 with a drive roller 11 connected to the drive ensuring its rotation. The driven roller 12 is fixed on the axis of the lever 13, which is associated with the drive 14, consisting of an electromagnet 15, a pull 16 and a lever 17. The force of pressing the roller 12 to the roller 11 is provided by a spring 18 with the electromagnet 15 turned on. the cable is installed in the sleeve 19, which guides the cable to the cone 5's end. In the middle of the track, a reed switch 20 is installed in the floor, and a fixed magnet 21 is installed on the carriage 2, controlling the reed switch 20. The flexible cable 1 is in the V-shaped groove, are located nn between rails. The proposed device works in the following manner. To move trolley 2 forward, press the corresponding control button. Depending on the location of the trolley 2, the track reed switch 20 is located in one of two positions, each of which ensures that the cable laying actuators turn on when the trolley 2 moves to the middle rail one, where the switch 20 moves to the second position under the influence of a constant magnet 21 Drives are disabled if cart 2 does not change direction. The reed switch 20 at the same time assembles the drive enable circuit to move the carriage 2 in the opposite direction. When the drives are turned on, the driving roller 11 is rotated and the driven roller 12 is pressed against the driving roller. The cable 1, located between the rollers, when the drives are turned on, receives tension with a certain force and when the trolley 2 moves to the middle of the track, the cable 1, moving down, is directed by the sleeve 19 and, sliding along the side surface of the cone 5, is placed in the coil in the bottom parts of it. When trolley 2 reaches the middle of the track, the permanent magnet 21 acts on the reed switch 20, switches it, drives off, at this moment the cable outlet on the trolley is located above the guiding device 4. With further movement of the trolley cable 1 under tension , through the block 7, moves behind the current collector 2 and the cable coil is unwound. When the drives of the system ha ha 16 are disconnected, the levers 13 and 17 under their own weight descend all the way down, the rollers 11 and 12 diverge and the cable does not move up. To change the direction of movement of the trolley 2, it is necessary to press the corresponding button. In this case, the carriage 2 begins to move in the opposite direction, the drives of the device for moving the cable 9 turn on, the cable 1 is moved and laid down in a coil. The application of the proposed device allows to increase the reliability by reducing the tensile forces acting on the cable. An apparatus for a power supply, comprising a flexible cable connected at one end to a current source and the other to a movable current receiver, a mechanism for supplying a cable with a rotating drive and a switch for controlling the operation of the rotating drive, characterized in that reliability by reducing the tensile forces acting on the cable; the cable feeding mechanism is made in the form of two rollers, one of which is associated with the rotational drive, and the other is provided with a drive of its reciprocating movement In the direction perpendicular to the axis of the cable, the drive of the reciprocating movement is connected to the switch. Sources of information taken into account during the examination 1. Polish Patent No. 70687, cl. 65 N 75/34, 1974l