SU449003A1 - Device for mounting a tower crane - Google Patents

Description

(54) DEVICE FOR INSTALLATION OF TOWER CRANE

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This invention relates to lifting devices.

A device for mounting a tower crane, comprising a rotary platform with a cantilever bracket to a beam with a load gripping body, is fixed, which is secured by a drawbar system.

However, the connection of the cantilever bracket with a beam extended with a round hole in the tail section leads to the complexity of the design and to the labor-intensive installation process.

In order to simplify the design of the device and facilitate the installation of the tower elements, the beam is made with a longitudinal groove in the tail part movably mounted on a pin fixed on the cantilever bracket.

FIG. 1 shows a tower crane; in fig. 2 - the proposed device

A device for mounting a tower crane consisting of the outer part 1 of the fixed tower, which can be extended by standard panels 2 and resting on the foundation or chassis 3, the sliding inner

parts of the turret 4, a swivel head 5 with a counterweight console 6, an arrow 7: .. together with a cargo trolley 8 and a lifting body 9, containing a rotary platform 1O with a cantilever arm 11 and a beam 12 s. In the form of a hook with a load gripping organ, 13, secured by means of a cable block system 14,

4 Beam 12 is made with a longitudinal groove 15 in the tail portion, movably mounted on the pin. 16 mounted on a cantilever bracket 11.

The support end of the beam 12 interacts with the pin 16, fixing the beam in extreme positions.

The device rotates around the vertical axis of the inner retractable part of the tower 4 in a known manner using the actuator 17.

A device for mounting a tower crane works as follows.

As the building is erected, the outer part 1 of the tower is made up of panels 2, after which the inner part of tower 4, resting on the outer part 1, extends

with any known method, for example, using a screw.

With the load-gripping body 9 of the boom 7, the panel 2 is raised to the required height position on the departure, ensuring safe lifting of the panel when it is possible to turn and swing.

Panel 2 is fixed to the load gripping body 13 of the beam 12. At the same time, the component K from the force L in the cable system 14 presses the edge of the groove 15 of the beam 12 to the support pin 16. When the cable-block system 14 is weakened, the beam 12 rotates around the axis of the pin 16 goes into the vertical position and completely hangs on the cable 14, which further mixes the panel 2 along the ordinate axis before setting it to the design position.

After installing the panel 2 with the load-gripping body 9, the boom 7 lifts the following} the whole panel, transfers it to the load gripping body 13 of the beam 12 and rotates it on the bracket 11 to the required angle. In this way, all panels 2 are assembled, constituting a section of the outer part 1 of the tower, after which the sliding part of the tower 4 is moved upwards in a known manner.

Dismantle the crane in reverse order. At. atom due to the fact that the working boom 7 of the crane can only move down parallel to the wall of the erected building, the beam 12 lifted up to the dismountable panel on either side of the tower turns around the vertical axis of the tower and pedals the panel 2 of the load gripping body 9 of the trolley 8 of the boom 7 which lowers panel to the ground.

Subject invention

/ A device for mounting a tower crane, containing a rotary flow with a cantilever bracket and a beam with a load gripping body, fixed with a cable block system, characterized in that, in order to simplify the construction of the device and facilitate the installation of tower elements, the beam is completed with a longitudinal groove in the tail section, movably mounted on a pin mounted on a console bracket.

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