SU796969A1 - Device for uncoiling wire with aid of helicopter - Google Patents

Description

(54) DEVICE FOR ROLLING WIRES FROM COILS BY HELICOPTER

their deformation and breakage. In addition, the device is complicated in design, and mounting the device on a coil is difficult for a large number of Sha'niers, located in different planes and at a great distance, from one another;

The purpose of the invention is to simplify the design and increase the reliability of the device.

The goal is achieved in that the device for rolling wires from the coils using a helicopter, for example for rolling wires onto transmission towers, contains coil braking devices mounted on its flanges, each of which is mounted on friction discs mounted on a fixed sleeve inside which there is an axis of the disks, one of which, associated with the coil, is mounted rotatably with respect to the fixed sleeve, and the second is made; with hub, mounted for movement along the sleeve, elements for fastening the coil to the external suspension of the helicopter, the forked K01SHCHA of which are connected to the friction disks installed with the possibility of moving along the fixed sleeves and interconnected by hinged rods, and the guide element for the wire , provided with holders rigidly attached to the fixed bushings, the guide element for the wire is hingedly attached to the joints at the point of their connection, each of which is for fastening The carcasses to the outer hanger of the helicopter are made in the form of a lever, the axis of rotation of which is located in the holder below the axes of the fricded disks, and the hubs are made with bridges on the outer surface, in KOTopbcs are the forked ends of the levers.

FIG. 1 shows a helicopter with a proposed device suspended thereto, a general view; FIG. 2 - view A in FIG. 1 (on an enlarged scale); in fig. 3 - node I in FIG. 2 (on an enlarged scale) J in 4ng, 4 — section B-B in FIG. 3; FIG. 5 - section B-B in FIG. 6; 6 - section G-D in FIG. . 3,

The device contains a coil 1 with brake devices mounted on its flanges and connected to an external suspension, made in the form of cables 2, with the help of levers 3. Each brake device consists of

disk 4 with ({a folding cover 5 and spikes 6 connecting the disk 4 with the coil 1 and the disk 7 adjacent to it. The disks 4 and 7 are mounted on the sleeve 8, while the disk 4 is mounted on bearings 9 and 1 O with the possibility of rotation together with the coil 1 relative to the hub 8, and the disk 7 with the hub freely, with the ability to move along the hub 8. Both brake devices are connected with each other by a ramrod 11, passed through the hub 8 and the hole in the coil I and having the ends of the nut 12 with handles. the fork end of each of the levers 3 is freely mounted on the axis 13, which is fixed in the holder 14, welded to the sleeve 8. The forked end of the lever 3 covers the hub of the disk 7, on the outer surface of which notches are made in the envelopes. The upper ends of the levers 3 are interconnected by adjustable length 13, pivotally attached to the levers 3 and the levers 3 bent with respect to the plane, the T gi 15 are interconnected by means of an axis 16 with a bent end, which simultaneously serves as an emphasis when the device comes into contact with the ground. On the axis 16, with the help of the plug 17, there is also fixed a guide block for the wire, consisting of two vertical rollers 18 and one horizontal roller 19, the axes of which are fixed to the bracket 20 welded to the fork 17,

The device works as follows.

When the helicopter takes off, the levers 3 are rotated around the axles 13 and their forked ends (inner face surface) under the action of weight. affect the notch ledge in the hubs of the discs 7, pressing them against the sleeves 4 with a force proportional to the weight of the coil 1 with the wire and thus braking the coil 1, while the guide block for the wire is in the extreme position and the free end of the wire is fixed to the ground.

Claims (2)

When the helicopter moves under the tension of a wire, the guide block through which the wire is passed goes down, and the levers 3 are deflected outward and with their forked ends (outer end surface) act on the notch ledge. In the hubs of the disk 7, spinning them from the disks 4, In this case, the disks 4 freely rotate together with the coil 1, i.e. coil I with wire turns out to be disinhibited, unwinding wire from coil takes place. The proposed ycTpoflciBo has increased reliability and lower cost due to simplified construction, as well as lighter weight. Invention Apparatus for rolling wires from coils using a helicopter, for example, rolling wires to power lines containing coil brake devices mounted on its flanges, each of which is made in the form of two friction discs mounted on a fixed sleeve inside the axis of the disks is located, one of which, connected to the coil, is mounted rotatably relative to the fixed sleeve, and the second, made to the hub, is mounted to move along the blind elements to attach the coil to the outer suspension of the helicopter, the forked ends of which are connected to friction disks mounted with the possibility of movement along the fixed bushings and interconnected by hinged rods, and a guide element for the wire, characterized in that design and increase reliability, the device is equipped with holders rigidly attached to the fixed bushings, the guide element for the wire is hingedly attached to the arms at the point of their connection, each of the elements for fastening the carcass to the external suspension of the helicopter is made in the form of a lever, the axis The vrashenn of which is located in the holder below the axles of the 4 pinch discs, and the hubs are wired with cuts on the outer surface, in which the forked ends of the rachagas are located. Sources of information taken into account in the examination 1. US patent number 2586256,. cl. 242-86.7, 1976.1. 2. USSR author's certificate on the assumption M 2393301 / 24-07, cl. H 02 G 1 / O2, 1976. i / green /