SU1761653A1 - Magnetic picking-up device - Google Patents

Abstract

Use: during loading and unloading of ferromagnetic goods, such as slabs and sheet steel packages, mainly in desks using portal cranes having two winches. SUMMARY OF THE INVENTION: The device comprises a frame with a movable beam mounted on it, connected to rods, equipped with sliders on which toothed racks are interconnected with levers picking up the lifting load. The control is carried out from two gantry crane winches, one of which lifts the load by means of an electromagnet, and the other — an elastic — controls the levers of exciting loads. There are stops interacting with the edge of the load and locking the electromagnet. 3 or

Description

The invention relates to lifting devices, in particular, to crane grippers and can be used during loading and unloading of ferromagnetic metal loads, such as slabs and sheet steel packages, mainly in ports.

Known traverse containing electromagnets installed on the package of metal, and drive grippers, made in the form of an electric motor with a gearbox, turning the levers, exciting package.

This device has drawbacks: power supply wires, limit switches are required to control and power the electric motor; the device is difficult to install on the surface of the cargo, as it is not provided with stops for fixing relative to the cargo.

Also known traverse for long materials containing electromagnets mounted on the package.

rolled metal, drive grippers, made in the form of an electric motor with a gearbox, turning the levers, exciting package. There are drawbacks to this device — wires are required to control and power the electric motor, limit switches. These devices cannot be used to operate gantry cranes that have two winches.

The aim of the invention is unification due to the possibility of working with portal cranes having two winches.

This goal is achieved by the fact that the magnetic pickup device is equipped with a frame with guides, sliders, travel regulators made in the form of screw – nut pairs, the beam is equipped with rods with eyelets designed to be hung to the cables of the second winch, the sliders are fixed on the crossheads , rods traverse mounted in rails

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we, stops and tacks are mounted on the frame, the pickup control mechanism is made in the form of pairs of rack and pinion gears, the gear racks are mounted on sliders, and the gears are mounted on pickups, the travel regulators are mounted on the frame with the ability to interact with sliders .

FIG. 1 shows the device; Fig 2 is a view from the right with the captured load; in fig. 3 is a view to the right in the initial position.

On the frame 1, the yoke 2 is movably mounted with rigidly fixed rods 3, at the ends of which sliders 4c are installed with gear racks 5 installed on each side, which engage with gear wheels 6, which serve to rotate pickups 7 rigidly connected to the wheels; translational movement in guides 8, fixed on frame 1, for adjusting the top dead center of movement of the slide blocks 4. On the frame there are limiting stroke adjustments of the screw – nut type 9; On one side of the lower ends of the frame 1, the stops 10 are fixed, which come into contact with the edge of the load 11 when mounted on its surface. The beam 12 is designed to secure the electromagnet 13 by means of a three-piece device 14 and pivotally connects the electromagnet 13 to the beam 12 and is secured to the crane winch through the lugs 15 via the shots 3; rods 16 are connected to another crane winch.

The device works as follows.

The device suspended from the crane winch ropes through the lugs 15, the rods 16 is brought to the edges of the load 11, while the body 1 is held by the beam 12 by the lower bearing surfaces of the body 1 of the sliders 4, electromagnets 13 that are in contact with the upper surface of the loads 11 that are located in the same horizontal plane, and the stops 10 are in contact with the edge of the load 11, fix the device over the top surface of the load, then using the simultaneous simultaneous operation of both cranes through the rods 16 of the lugs 15, the device is mounted on The surface of the load 11, the electromagnets 13 lie on the load 11, pressed against its surface, after which the load 11 with one crane winch through the rods 16 raises to the height of unhindered operation

pickups 7 and secure the cargo for transportation; to do this, through the lugs 14, the crane winch lifts the yoke 2, which through the rods 7, the sliders 15, the rack 17 and the gear wheel 9 rotates the supports 8 to the lowest position and this captures the load with pickups, which the load is pressed against the supporting surface of the frame 1. After that, the current in the electromagnet 6 is turned off, it is lifted and transported to the specified place for unloading. The unloading occurs in reverse order, i.e. Before installing the load 11 to the right place, turn on the power supply of the electromagnet 6 by means of the crane winch through the lugs 14 the traverse 2 is lowered, which through the rod 7, the sliders 15, the rack 17 and the gear 9 rotates the supports 8 to the extreme upper position and the load is released from the pickups 8 and with the help of a crane winch, on which the electromagnet 6 is suspended, set the load to the right place through the rods 4, turn off the power supply current of the electromagnet 6, remove the device from the load and set it to its original position.

Claims (1)

Claims of Invention A magnetically-lifting device comprising a cross bar with rods and eyelets for hanging on winch cables, a beam, a lifting electromagnet suspended from a beam, stops for fixing relative to the lifted load, pickups mounted rotatably, pick-up control mechanism so that, for the purpose of unification due to the possibility of working with portal cranes having two winches, it is equipped with a frame with guides, sliders, With stroke adjustments made in the form of screw-nut pairs, the indicated beam is equipped with rods with eyelets for hanging the second winch to the cables, said sliders are fixed on the rods of said crosshead, the crosshead rods are installed in the guide frames, the indicated stops and hooks are installed on the frame, the specified pick-up control mechanism is made in the form of a pair of rack-and-pinion gears - a gear wheel, with the rack gears mounted on the sliders, and the gears are mounted on the pickups, the travel regulators are set to AME to cooperate with the sliders. 2 ib ISflu-40 1751653 IS 4 7170 FIG. one