SU412127A1 - CRANE FOR THE ESTABLISHMENT OF VERTICAL STRUCTURES - Google Patents

Description

The invention relates to load lifting devices, in particular to construction cranes, and may be used in the construction of vertical structures.

A crane for erecting vertical structures, especially with a sectioned frame, comprising a framework enclosing a structure, carrying a cantilever beam with a load carriage, and a counterbalanced platform with a cable winch, are known. However, it is against: 1-111l a platform with a cable winch. Mn is rigidly attached to the skeleton, which is why it is not possible to perform the installation of the krap along the height of the frame by means of the winches. This complicates the installation work but the construction is erected.

The aim of the invention is to simplify the crane permutation at the height of the structure.

For this purpose, at the proposed spot, the frame is provided with vertical guides for the hinged supports of the frame of the counterbalanced platform, the follow-up with the possibility of raising and lowering the indicated direction, turning and non-shifting with a cantilever beam.

On f: ig. 1 shows the proposed crane in the penultimate section of the structure; FIG. 2 and 3 - the same, when installing a platform with winches on the D1 trap of the construction section;

la fig. 4 - the same, after the front of the wreck along the platform with winches; on f | 11g. 5 - the same, with the release; pa f | n-. 6 - the same, after the release; pas f1n. 7 is a block diagram of the automatic control of the valve body in a closed system of automatic regulation.

The krap contains the body /, a cantilever beam 2 with a cargo carriage 3, an armature platform 4 with a rope winch. Mn 5. The body / light with the possibility of embracing and supporting the construction of the frame 6 from the frame sections 6 7. I and the structure 7 of the body / body with using stops

5 S and grippers 9, installed respectively in the lower part 10 and middle // of the linking frame 12 /. In addition to trains 10 and // racks 12 are connected by an upper som 13. Beam 2 is located under the upper part of 13, the bed of which 3 is arranged to move inside racks 12 by means of a winch 14. Trolley 3 is equipped with a hook 15, haul system 16 of which is vypoliepa controlled from the earth and crane. Beam 2 with trolley

5 3 is mounted on the body / with the possibility of being placed in the pocket / 7 under the top of the catfish 13 on the uprights 12. The two uprights 12 located on the opposite side of the skeleton / crane are provided with vertical guides 18 for clamps (shcharppryy supports) 19 20

of the rotary platform 4. In addition, at the top, the guides 18 have additional clamps 21, and 22. With the help of the cargo trolley 3 of the cantilever beam 2 and the clamps 19-22, the counterweight platform 4 is designed to be lifted and lowered along the guides 18, turning and lateral displacement relative to these guides. Thus, with the help of a cart and latches, the platform 4 is transferred from a vertical position on the uprights 12 to a horizontal polishing on the tips 23 of the frame sections 6.

The iB horizontal position of the platform 4 at the ends 23 of the winch 5 is connected with the average som 11 cores of the ropes 24. The travel control of the winch 5 is provided by inclined-dimensional sensors 25 pivotally mounted on brackets 26 attached to the skeleton.

With the aid of the arms 26, each of the sensors 25 is installed parallel to the corresponding plane of the winches 5 and is coordinated with the directions of their resultant actions. The sensors 25 are made with the ability to connect directly to the body 27 of the control of the winches 5. Automatic control of the course of the ropes 24 winches 5 in addition to the use of inclined sensors 25 and the body 27 of the control carried out by electric actuators 28. Together with the object 29 of the regulation, represented by the skeleton /, and the angle gauges 25 The control unit 27 and the electric actuators 28 in the automatic mode of adjusting the course of the ropes 24 of the winches 5 constitute the automatic control system.

To lower the crane to the bottom of the structure 7, 6 lever winches 30 with ropes 31 attached with frame sections were used, which, in turn, were hooked onto the middle of the ill frame 1. Anti-weight and platform 4 was mounted on frame 32.

Next, by lifting and expanding the mounting of sections 6 of the structure 7, the crane mounted on the rails 18 with the platform 4 with the frame 32 is mounted on the first of the mounted sections 6. Using the trolley 3 on the beam 2, the hook 15 with the traction system 16 is lifted off the ground the first of the mounted sections 6 to the level of average ca // and a winch 14 winds up the first of the mounted sections 6 inside the skeleton /. Then, the first of the mounted sections 6 is lowered between the uprights 12 to the cus 10 and attached to the bottom of the structure 7. Do not change the position of the core 1, lift the second of the mounted sections 6 with the hook 15 and attach it to the first.

After that, the hook 15 moves the platform 4 along the guides 18 upwards up to the tip 23 of the second of the mounted sections 6. Using clamps 21 and 22, they translate

platform 4 from vertical to horizontal position. Chaining the hook 15, the platform 4 is installed on the top of the second mounted section 6 with the same distance between the uprights 12 and the platform 4. The ropes 24 of the winches 5 are hooked over the middle of the skeleton / and out of the bottom 7.

The winches 5 are included in the work of uniformly dragging the skeleton to the platform 4 installed on the top of the second of the mounted sections 6. The tilt of the core 1 relative to sections 6 is determined by the slope one-dimensional sensors 25, which with the help of the brackets 26 preset parallel to the corresponding paired planes winches 5 and are coordinated with the directions of the resulting actions of their traction efforts.

In the automatic lifting mode, the frame / inclining sensors 25 and electric drives 28 of the winches 5 are transferred to work in the closed system of automatic control of the course of the ropes 24 of the winches 5. The building 7 is increased by the following sections 6 in the same way as the lifting and mounting of sections 6. The difference is that the inclusion of the winches 5 in the work on the movement of the core / to the platform 4 installed on the tips of the sections 6 after the construction of the platform 7 is removed from the stops 8 and the grips 9, with which the crane supports construction equipment 7. To lower the crane to the bottom of the armature 7, the beam 2 with the cargo trolley 3 is placed in the pocket 17 under the upper rack 13 and the uprights 12, and the skeleton J with the ropes 31 of the lever winches 30 is led to the construction 7. The final dismantling of the crane is made in bottom of the structure 7. The crane can be lowered by waving the frame, / by the cables 24 to the winches 5. At the same time, the electric drives 28 of the winches 5 can be switched on similarly to the automatic control of the movement of the Caiates 24.

Subject invention

A crane for erecting vertical structures, predominantly with a sectioned skeleton, comprising an enclosing structure, carrying a cantilever beam with a trolley, and a counterweight platform with cable winches, characterized in that, in order to simplify the rearrangement of the crane along the height of the structure, the frame is provided with vertical guides for hinged bearings of the counterbalance platform,

the latter is made with the possibility of raising and lowering along the indicated guides, turning and lateral displacement with the help of a cargo carriage of a cantilever beam.

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Fig i

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FIG. 6

FIG. - 7