JPH04333492A - Weight lifting member positioning fitting device for high lift crane - Google Patents

Abstract

PURPOSE:To automatically set a weight lifting member suspended through a crane suspending jig and a suspending rope on a prescribed position while preventing its rotation, lateral swing, and the like. CONSTITUTION:An expansion device 14 to be expansible is suspendedly provided from a crane main body 4 along a suspending wire rope 10 of an overhead traveling crane 1. The fitting base part of the expansion device 14 is rotatably fitted to the crane main body 4 through a rotation device 15. A fixing device 16 capable of fixing a suspending jig 13 is fitted to the expansible extreme end part of the expansion device 14. When the suspending jig 13 is fixed with the fixing device 16, it is made in one body with the expansion device 14, and rotation, lateral swing, and the like of a weight lifting member L is prevented. When the suspending jig is rotated with the rotation device 15 and the expansion device 14 is expanded or contracted, the weight lifting member L is automatically set on a prescribed position.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention applies to high-lift cranes used in high-rise construction work to lift lifting members such as steel columns, steel beams, and PCa outer walls at high heights and then attach them to predetermined positions. This invention relates to a heavy member positioning and mounting device.

0002

2. Description of the Related Art Recently, the T-UP method (total mechanized high-rise building construction system) has been developed and is being implemented as a new automatic construction method for high-rise construction work. This T-UP construction method improves quality and work environment, shortens construction period,
This is a new production system for high-rise buildings aimed at labor saving, etc., in which the core tower that makes up the central part of the building is constructed in advance, and the truss structure that will be the top floor is assembled on the ground.
This truss structure is climbed up using the core tower as a guide support, and each floor is completed in sequence in the mechanized production space formed below the truss structure. The basic technology is to construct high-rise buildings through repeated mechanized construction.

[0003] In this T-UP construction method, an overhead traveling crane is placed at the bottom of the truss structure, and large block parts such as columns, beams, floors, and exterior walls are hoisted from the loading area to a predetermined floor by the overhead traveling crane. It is moved to the designated position and installed. When setting a large block part that is a lifting member like this in a predetermined position on a predetermined floor, in conventional general construction work, a rope is attached to the lifting member, and a steelworker with a construction number Setting is carried out by the crane operator while holding the rope and preventing the lifting member from rotating or swinging sideways.

0004

[Problem to be solved by the invention] The above-mentioned method of setting the lifting member while preventing rotation and lateral vibration of the lifting member by using a rope for the construction work is dangerous when working at heights. However, there are problems such as poor work efficiency and the need for skilled workers. In addition, T-
In the UP method, a device that automatically sets lifting members is desired. The present invention was made in view of the above circumstances, and its purpose is to provide a lifting member that can automatically set the lifting member at a predetermined position while preventing the lifting member from rotating, lateral vibration, etc. An object of the present invention is to provide a lifting member positioning and mounting device for a crane.

[0005]

[Means for Solving the Problems] The present invention provides an extensible device that can extend and contract along the lifting rope in a high-lift crane that moves and attaches a lifting member lifted to a predetermined position via a lifting jig and a lifting rope. is installed vertically from a moving body of a high-lift crane, the mounting base of this telescoping device is rotatably attached to the movable body by a rotation device, and a fixing device capable of fixing a lifting jig is attached to the telescoping tip of the telescoping device. It is something that

[0006]

[Operation] Move the crane's lifting jig above the loading area, attach the lifting member to the hoisting jig, and lift it. When the hanging jig is lifted up to the telescopic device, the hanging jig is fixed by the fixing device at the telescopic tip and integrated with the telescopic device. The lifting jig is moved to a predetermined mounting position, and the entire telescopic device is rotated by a rotation device to expand and contract the telescopic device, and the lifting member is inserted into the setting position. Since the lifting jig is integrated with the expansion and contraction device, the lifting member can be efficiently and safely positioned without causing rotation or lateral vibration. Also,
Setting can be done automatically without the need for a special kite or rope.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be explained below based on an illustrative embodiment. This is an example of application to an overhead traveling crane used in the T-UP construction method for high-rise buildings.As shown in Figure 8, the T-UP construction method uses a The core tower B is constructed in advance, and the truss structure C that surrounds the core tower B and becomes the top floor is climbed up using the core tower B as a guide support, and is attached to the lower part of the truss structure C. Pillar by crane 1,
Large block parts such as beams, floors, and exterior walls are brought in and assembled.
On the lower floors, a group of robots performs finishing work on the interior and equipment, and is also configured to carry out underground and above-ground construction simultaneously, as well as convert materials into pre-products. In such a T-UP construction method, one overhead traveling crane 1 is installed on one side of the truss structure C, and the crane main body, which is a moving body, travels in the circumferential direction of the truss structure C, and It is possible to traverse in the direction of advance and retreat from tower B.

As shown in FIGS. 1, 3, and 4, the crane body 4 of the overhead traveling crane 1 is suspended from two running frames 3 perpendicular to two running rails 2. As shown in FIGS. The traveling frame 3 is suspended from the traveling rail 2 via an electric traveling trolley 5 consisting of traveling wheels 5A and a traveling electric motor 5B, and is capable of traveling in the circumferential direction of the building. The crane main body 4 is suspended from the traveling frame 3 via an electric trolley 6 for traversing consisting of traversing wheels 6A and a traversing electric motor 6B, and is capable of traversing in and out of the building. Note that one of the running electric trolleys 5 is provided with anti-surfacing wheels 5C (see FIG. 4).

Two lifting winches 7, a driver's cab 8, a control panel 9, etc. are installed on the traverse frame 4A of the crane main body 4. The lifting wire rope 10 is
Fix one end on the transverse frame 4A, hook block 1
After wrapping around the lifting sheave 12 of 1, the lifting winch 7
wind it around the drum. By operating two lifting winches 7 synchronously and winding up two lifting wire ropes 10, the hook block 11 is raised and lowered at a high height of, for example, 150 m. Steel columns, steel beams, PC
A lifting member L such as an outer wall is attached to the hook block 11 via a hanging jig 13.

In the above-described overhead traveling crane 1, as shown in FIGS. 1 to 6, a telescoping device 14 is installed at the lower part of the traverse frame 4A of the crane main body 4 at a lifting position.
is installed vertically, and the mounting base of this telescoping device 14 is connected to a rotating device 15.
A fixing device 16 is provided at the tip of the telescoping device 14. The telescoping device 14 includes a telescoping cylinder 17 that telescopically accommodates unit cylinders whose diameters gradually become smaller toward the bottom and can be extended, and an elevating mechanism 18 that can extend and contract the telescoping cylinder 17.

The telescoping cylinder 17 has an inner diameter that allows the lifting wire rope 10 to be inserted through it without coming into contact with the inner surface, and has five steps, for example, so that a predetermined positioning stroke can be obtained. The lifting mechanism 18 includes a telescopic winch 19, a telescopic electric motor 20, and a telescopic wire rope 21.
, a telescoping sheave 22, etc., and a telescoping winch 1.
9 and the telescopic electric motor 20 are installed on a support pedestal 33 fixed to the base cylindrical body 17-1, and the telescopic sheave 22 is attached to the tip cylindrical body 17-5. The telescoping sheaves 22 are integrally arranged at opposite positions, and the drums of the telescoping winch 19 are also arranged as a pair at corresponding positions, and the telescoping wire rope 21 wound around the telescoping sheaves 22 is attached to each drum, respectively. Wind it. By rotating the two drums coaxially by the electric motor 20 for expansion and contraction, the tip cylinder body 17-5 moves up and down, and the cylinder body on the tip side sequentially contracts and extends. Note that this telescoping device 14 is not limited to this, and may be a cylinder type,
A link type etc. can be used.

The rotating device 15 includes a ring gear 23, a drive gear 24 that meshes with the ring gear 23, and a drive gear 24 that meshes with the ring gear 23.
A ring gear 23 is fixed to the upper end outer periphery of the base cylinder 17-1, which is rotatably connected to the traversing frame 4A of the crane main body 4, and the rotating electric motor 25 is connected to the traversing frame 4A. By fixing the rotary motor 25 to the rotation motor 25 and rotating the rotating electric motor 25 in the forward and reverse directions, the telescopic cylinder 17 can be rotated in the forward and reverse directions, for example, by 180 degrees.

The fixing device 16 is composed of a gripping lever 26 and an electric jack 27, and is provided at four locations at equal intervals around the outer circumference of the tip cylinder 17-5. The gripping lever 26 is swingably attached to the lower part of the support bracket 28 via a pin, and its tip passes through an opening formed in the tip cylinder 17-5, and is attached to a disk provided at the upper center of the hanging jig 13. The tip surface can come into contact with the side surface of 29. A rod of an electric jack 27 attached to the support bracket 28 via a pin is connected to the rear end of the grip lever 26, and when the electric jack 27 is operated, the tip end surface of the grip lever 26 is pressed against the side surface of the disk 29. Then, the hanging jig 13 is firmly fixed to the tip cylinder 17-5. Like the telescopic sheave 22, the support bracket 28 is attached to the distal end cylinder 17-5 via the reinforcing ring 30 (see FIG. 7(B)).

[0014] Since the telescoping cylinder 17 rotates with respect to the crane main body 4, power is supplied to the telescopic motor 20 of the elevating mechanism 18 using a cable 31 that is wound and supported by a clip around the transverse frame 4A. (See FIG. 6), the same cable 31 and cable winding/feeding drum 32 are used to supply power to the electric jack 27 of the fixing device 16 (see FIGS. 6 and 7(A)).

The above configuration is operated as follows (see FIG. 2). (1) Fig. 2 shows an example of constructing a steel beam, with the crane body 4 traveling and traversing and positioned above the loading area, and the telescopic cylindrical body 17 completely retracted. Then, the lifting wire rope 10 is let out by the lifting winch 7, and the hook block 11 is lowered to the loading area. (2) Attach the steel beam L1 to the lifting jig 13, and use the lifting winch 7 to wind up the lifting wire rope 10 to raise the hook block 11. During hoisting from the loading area to the installation floor, the steel beam L1 is freely rotatable.

(3) When the hook block 11 is housed in the contracted telescopic cylinder 17 and the disk 29 of the hanging jig 13 is inserted into the lower end of the tip cylinder 17-5,
This is detected by a limit switch or the like, the electric jack 27 of the fixing device 16 is activated, and the disk 29 is fixed by the gripping lever 26. The disk 29 is gripped from all sides by the gripping levers 26, and the hanging jig 13 is attached to the telescopic cylinder 17.
It is firmly fixed and integrated. (4) In this state, the crane main body 4 is moved and moved sideways to the mounting position.

(5) While lowering the hook block 11, the telescopic cylinder 17 is extended by letting out the telescopic wire rope 21 by the telescopic winch 19, and the entire telescopic device 14 is rotated by the rotation device 15. The steel beam L1 is rotated by a predetermined angle and inserted between the joint members of the steel column L2. The crane operator in cab 8 is
The steel beam L1 is set up while adjusting the traveling, traversing, vertical movement, and rotation according to visual inspection and instructions. Hanging jig 1
3 is integrated with the telescopic cylinder 17, the steel beam L1 can be efficiently and safely positioned without causing rotation or lateral vibration.

(6) When the joining of the steel beam L1 and the steel column L2 is completed, the hanging jig 13 is removed from the steel beam L1. Here, if an automatic sling removal device is provided so that the steel beam L1 can be automatically removed by operation by a crane operator, automation can be further promoted. (7) When the crane body 4 is moved and reaches above the loading area, the fixing device 16 is released, the hook block 11 is lowered, and the next member is erected.

[0019] Although the above description has been made regarding an overhead traveling crane in the T-UP construction method, the present invention is not limited to this, and can also be applied to setting lifting members in other construction methods or other types of cranes. Needless to say, it can be applied.

[0020]

Effects of the Invention As mentioned above, the lifting member positioning and mounting device of the present invention includes a telescopic device that is extendable and retractable along the lifting rope of a high-lift crane, and is installed vertically from the moving body of the high-lift crane. Since the lifting jig is rotated by a rotating device and the lifting jig is fixed to the telescopic tip of the telescopic device using a fixing device, the lifting member can be moved efficiently without the need for a construction workman or a rope. , can be positioned safely and set automatically, improving erection efficiency, saving labor, and improving safety.

[Brief explanation of drawings]

FIG. 1 is a schematic front view showing an embodiment of the present invention.

FIG. 2 is a schematic diagram sequentially showing the operating conditions of the device in FIG. 1;

FIG. 3 is a front view showing details of the device of FIG. 1;

4 is a side view showing details of the device of FIG. 1; FIG.

FIG. 5 is a partially enlarged view of FIG. 3;

FIG. 6 is a partially enlarged view of FIG. 4;

FIG. 7 (A) is a sectional view taken along the line VIIa-VIIa in FIG. 4;
(B) is a sectional view taken along the line VIIb-VIIb in FIG. 4.

FIG. 8 is a front view showing a high-rise building constructed using the T-UP construction method.

[Explanation of symbols]

1 Overhead crane 2 Traveling rail 3 Traveling frame 4 Crane body 5　Electric trolley for traveling 6　Electric trolley for traversing 7 Lifting winch 10 Lifting wire rope 13. Hanging jig 14　Expansion device 15 Rotating device 16 Fixing device

Claims (1)

[Claims] Claim 1: In a high-lift crane that moves and attaches a lifting member lifted to a predetermined position via a lifting jig and a lifting rope, a telescoping device that is extendable and retractable along the lifting rope is attached from a moving body of the high-lift crane. Vertically installed,
Lifting of a high-lift crane characterized in that a mounting base of the telescoping device is rotatably attached to the movable body by a rotation device, and a fixing device capable of fixing a lifting jig is attached to the telescoping tip of the telescoping device. Component positioning and mounting device.