JP2646891B2 - Crane suspension beam device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hanging beam device for a crane used for a crane such as a tower crane and suspended by a hook block to hold a load.

[0002]

2. Description of the Related Art In constructing a building such as a high-rise building, PC products such as a PC (precast concrete) curtain wall have been frequently used in recent years. Although these PC products become quite heavy, they are lifted by a crane such as a tower crane, moved to a predetermined position, and sequentially built.
By constructing a building by using many PC products in this way, the construction period is shortened and labor is greatly saved.

In the stage of actually installing the PC product, it is necessary to adjust the position of the suspended PC product while finely adjusting the position. For this reason, a hanging beam device is provided between the hook block of the crane and the PC product as a suspended load, and the hanging position of the PC product is finely adjusted by the hanging beam device. For example, Japanese Utility Model Application
The suspension beam device disclosed in Japanese Patent Publication No. 785 (Int. Cl. B66C 13/08) suspends a suspended load on a horizontally arranged suspension beam via three chain blocks, and operates these chain blocks. The structure allows fine adjustment of the suspended load position.

[0004]

However, since such a conventional suspension beam device has a structure in which three chain blocks are used in parallel, the position of the suspended load is simply adjusted in the vertical direction. However, it is extremely time-consuming to finely adjust the position of the suspended load, for example, it is necessary to independently operate the three chain blocks by the same amount. On the other hand, it is conceivable to adjust the position by operating the crane's boom, but in this case, the fine adjustment becomes extremely difficult because the crane is large.
It takes an extremely long time to build PC products. In addition, when adjusting the movement of the suspended load in the front-rear direction, there is a problem that it is necessary to rely on the boom operation.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to provide a crane hanging beam device capable of performing fine adjustment of a suspended load easily, quickly, and accurately. .

[0006]

According to one aspect of the present invention, there is provided a suspension beam device for a crane according to the present invention, comprising: a suspension beam suspended from a hook block of a crane; A rotating mechanism interposed between the suspension beam and the hook block to horizontally rotate the suspension beam, a winch around which a wire for suspending the suspended load is wound and attached to the suspension beam, A slide arm provided with a sheave around which the wire is circulated, the slide arm being attached to one end of the suspension beam so as to extend and contract in the longitudinal direction thereof so as to horizontally move a suspended load suspended from the wire. It is composed.

According to another aspect of the present invention, there is provided a hanging beam apparatus for a crane, which is hung on a hook block of the crane and is oriented horizontally. A rotation mechanism interposed between the hook block and the swing beam for horizontally rotating the suspension beam, a winch around which a wire for suspending the suspended load is wound and attached to the suspension beam, and a wire wrapping around the wire at the tip. A slide arm attached to one end of the suspension beam so as to be extendable and contractible in the longitudinal direction of the suspension beam so as to horizontally move a suspended load suspended from the wire; And a balance weight movably attached to the suspension beam along the longitudinal direction thereof.

Further, in the hanging beam apparatus for a crane according to the second aspect, it is preferable that the balance weight is automatically moved based on a measurement value of an inclinometer for measuring an amount of inclination of the hanging beam. Still further, the rotating machine
The structure is a rigid vertical member vertically connected to the suspension beam.
And an upper portion of the rigid vertical member and the other end of the suspension beam.
It is desirable to have a diagonal member connecting the two.

[0009]

In the construction of the hanging beam device for a crane according to the first aspect of the present invention, first, the suspended load is taken in on the ground by a winch, and then lifted to a substantially predetermined position by the crane. After the direction of the suspension beam is determined via the rotation mechanism, the horizontal position of the suspended load is finely adjusted by adjusting the amount of expansion and contraction of the slide arm, and the vertical position of the suspended load is finely adjusted by the winch. Therefore, the final fine adjustment of the suspended load does not require the use of the crane boom, and accurate position adjustment can be performed easily and quickly.

According to a second aspect of the present invention, in addition to the first configuration, a balance weight is movably mounted on the suspension beam.
Since the balance weight is moved in accordance with the movement of the suspended load, the balance weight is moved in accordance with the moving position of the suspended load, so that the center of gravity of the suspension beam device is maintained at a fixed position and the horizontal position of the suspension beam is maintained. State can be maintained.

Further, in the construction of the hanging beam device for a crane according to the second aspect, the balance weight is automatically moved based on a measurement value of an inclinometer for measuring the amount of inclination of the hanging beam, so that the apparatus of the present invention is provided. The position of the center of gravity is always set to a constant position, so that the posture control of the present apparatus can be automatically performed. Furthermore, the suspension beam is a rigid vertical part of the rotating mechanism.
It is vertically connected to and supported by the
The other end of the arm opposite to the arm
Because it is connected and supported at the top, the veranda of a middle- and high-rise building
When unloading inside a building such as
If there are slabs or roofs, slide them on
Unloading work without any interference on the arm side
It can be performed.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 3 show an embodiment of a hanging beam device 10 for a crane according to the present invention, FIG. 1 is an overall configuration diagram of the device 10, FIG. 2 is a right side view of a main part of FIG. 1, and FIG. 1 is a left side view of a main part of FIG. In this embodiment, an example will be described in which a tower crane is used as a crane and a PC curtain wall material 12 is used as a suspended load.

The suspension beam device 10 includes a suspension beam 14 arranged in a horizontal direction. The suspension beam 14 is connected to a hook block 18 of a tower crane via a turning mechanism 16.
Hanged on.

The turning mechanism 16 has a seat 22 fixedly mounted on a cylindrical portion 20 which is hooked on the hook block 18.
, A small-diameter pinion 26 fixedly mounted on the rotating shaft of the motor 24, and a large-diameter pinion 30 fixedly mounted on a rotary cylinder 28 as a rigid vertical member relatively rotatably mounted on the seat 22. The large-diameter pinion 30 and the small-diameter pinion 26 mesh with each other. On the other hand, the hanging beam 14 is fixed at a right angle to the lower end of the rotary cylinder 28 via a flange 32.

As shown in FIGS. 2 and 3, the suspension beam 14 has a hollow elongated rectangular parallelepiped shape, and a guide rail having a U-shaped cross section with open side portions is formed on both outer sides of the suspension beam 14. 15 are provided over its entire length.

In this embodiment, a slide arm 34 is fitted and attached to one end (left end in FIG. 1) of the suspension beam 14 so as to be extendable and contractible. The slide arm 34 is formed in a hollow shape, and a hydraulic cylinder 36 for expanding and contracting the slide arm 34 is housed inside the slide arm 34 and the suspension beam 14. The cylinder body 36a of the hydraulic cylinder 36 is fixed to the suspension beam 14 side, and the distal end side of the piston rod 36b is attached to a fixing member 38 provided at the distal end of the slide arm 34.

A winch 40 is mounted above the suspension beam 14, and a wire 42 for suspending the PC curtain wall material 12 is wound around the winch 40. The winch 40 is, as shown in FIG. 2, a pair of drums 40a, 40a arranged on both sides in the width direction of the suspension beam 14, and arranged between these drums 40a, 40a. And a reverse motor 40b.

On the other hand, a sheave 44 is rotatably attached to the tip of the slide arm 34 as shown in FIGS. 1 and 2, and the wire 42 is wound around the sheave 44. The end of the wire 42 circling around the sheave 44 and hanging downward is attached to the PC curtain wall material 1.
A hook 46 for hooking the hook 2 is attached.

Further, a balance weight 48 is attached to the suspension beam 14 so as to be movable along its longitudinal direction. As shown in FIG. 3, the balance weight 48 includes a roller 48a that rolls while being fitted to the guide rail 15, and one of the rollers 48a is
By being driven to rotate at 8b, it moves along the suspension beam 14. The balance weight 48 is provided with an inclinometer 50 attached to the flange 32 at the lower end of the rotary cylinder 28.
Is automatically moved by a controller (not shown) according to the detected value of the PC curtain wall 12, and the PC curtain wall 12 is balanced with the horizontal movement position.

Between the upper end of the rotary cylinder 28 and the other end (the right end in the drawing) of the hanging beam 14 on the side opposite to the slide arm 34, a diagonal member is provided as a diagonal member connecting the two. A bracket 52 is provided.

In order to install the PC curtain wall material 12 as a wall of a building using the hanging beam device 10 of the present embodiment with the above configuration, first, the hook block 18 of the tower crane is set in a lowered state. At the same time, the wire 42 of the winch 40 is drawn out to the minimum necessary, and the hook 46 is lowered at least in the vicinity of the height position of the PC curtain wall material 12. And the hook 4
6 hangs the PC curtain wall material 12 on the winch 4
0, the PC curtain wall 12
On the ground.

Next, the PC curtain wall material 12 is lifted to a predetermined position by a tower crane.
The side of the slide arm 34 is brought close to a building (not shown) and the direction is adjusted so as to be opposed to the building at right angles. Then, the hydraulic cylinder 36 housed in the suspension beam 14 is operated, and one end of the suspension beam 14
Extend 4 Then, the sheave 44 provided at the tip of the slide arm 34 projects along with the slide arm 34, and the PC curtain wall material 12 moves horizontally together with the wire 42 circling around the sheave 44. Further, by operating the winch 40 in conjunction with the horizontal movement and finely adjusting the vertical position of the PC curtain wall member 12, the PC curtain wall member 12 can be accurately arranged at a target erected position. here
In this case, the suspension beam 14 is suspended on a rotating cylinder 28 which is a rigid vertical member.
It is directly supported and is opposite to the slide arm 34.
The other end on the opposite side is located above the rotary cylinder 28 by the rod 52.
Is connected to and supported by
When unloading the building, use the veranda or sla
Slides or roofs
Unloading work without interference
It can be performed.

That is, in this embodiment, final adjustment of the embedding of the PC curtain wall material 12 is performed by the winch 40.
And the slide arm 34, and there is no need to rely on the crane boom operation, so that the horizontal movement adjustment operation and the vertical movement adjustment operation of the PC curtain wall material 12 can be performed easily and quickly. it can.

Incidentally, the PC curtain wall material 1
When 2 is moved horizontally, the position of the center of gravity of the apparatus 10 changes, and the suspension beam 14 is inclined. Therefore, in the present embodiment, the inclination state of the suspension beam 14 is constantly measured by the inclinometer 50, and the balance weight 48 is moved in accordance with the measurement to balance the PC curtain wall material 12 and the balance weight 48. The position of the center of gravity of the device 10 can be kept substantially constant. Therefore, since the attitude control of the present apparatus 10 can be performed automatically, the movement of the PC curtain wall material 12 can be always performed in a stable state, and thus the embedding can be performed accurately and safely.

In this embodiment, the case where the PC curtain wall material 12 is used as the suspended load is disclosed. However, the present invention can be applied to any suspended load without being limited to this, and in particular, the positional accuracy of the suspended load arrangement is required. It is extremely useful for moving suspended loads.

[0026]

As described above, the hanging beam device for a crane according to the first aspect of the present invention is provided with a rotating mechanism for adjusting the direction of the hanging beam suspended from the hook block of the crane, A sheave is provided at the tip of the slide arm that is extendably attached to the suspension beam, and the suspended load is suspended on the winch wire wrapped around the sheave. And it is possible to carry out this suspended load movement simply, accurately and quickly.

According to a second aspect of the present invention, in addition to the configuration of the first aspect, a balance weight is movably mounted on the suspension beam, and the suspended weight is moved with the movement of the suspended load. Since the balance weight is moved, the position of the center of gravity of the suspension beam device can be maintained at a fixed position by moving the balance weight according to the position of the suspended load. Therefore, since the suspended load can be moved while the suspension beam is stabilized,
The moving position of the suspended load can be performed more accurately.

Further, in the third aspect of the present invention, the balance weight is automatically moved based on the measurement value of the inclinometer for measuring the amount of inclination of the suspension beam.
Suspending the attitude control of the beam unit can be performed automatically, Ru can be performed safely suspended load movement. Furthermore, hanging beam
Is vertically connected to and supported by the rigid vertical member of the rotating mechanism.
And the other end opposite to the slide arm
Is it connected and supported on the upper part of the vertical member by diagonal material
A place to unload a building such as a veranda of a high-rise building
If there is a veranda, slab or roof on the upper floor
However, the slide arm does not interfere
And that the unloading work can be performed without trouble.
It has excellent effects.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram showing an embodiment of a hanging beam device for a crane according to the present invention.

FIG. 2 is a right side view of a main part showing one embodiment of a hanging beam device for a crane according to the present invention.

FIG. 3 is a left side view of an essential part showing one embodiment of a crane hanging beam device according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 Hanging beam device 12 PC curtain wall material (hanging load) 14 Hanging beam 15 Guide rail 16 Rotation mechanism 18 Hook block 34 Slide arm 40 Winch 42 Wire 44 Sheave 46 Hook 48 Balance weight 50 Inclinometer

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-49-956 (JP, A) JP-A-56-141291 (JP, A) JP-A-49-21853 (JP, A) Jpn. 133585 (JP, U) Japanese Utility Model Showa 60-100384 (JP, U) Japanese Utility Model Showa 55-9710 (JP, U) Japanese Utility Model Utility Model Showa 60-53793 (JP, U)

Claims (4)

(57) [Claims] 1. A suspension beam suspended from a hook block of a crane and directed horizontally, a rotation mechanism interposed between the suspension beam and the hook block to horizontally rotate the suspension beam, A winch on which a wire for suspending the suspended load is wound and attached to the suspension beam, and a sheave around which the wire is wound are provided at the tip to move the suspended load suspended on the wire horizontally. A suspension beam device for a crane, comprising: a slide arm attached to one end of the suspension beam so as to be able to expand and contract in the longitudinal direction. 2. A hanging beam suspended from a hook block of a crane and directed horizontally, a rotation mechanism interposed between the hanging beam and the hook block to horizontally rotate the hanging beam, A winch on which a wire for suspending the suspended load is wound and attached to the suspension beam; and a sheave for circling the wire at the tip is provided to move the suspended load suspended on the wire horizontally. A slide arm attached to one end of the beam so as to extend and contract in the longitudinal direction thereof, and a balance weight movably attached to the suspending beam along the longitudinal direction to keep the suspending beam horizontal. A hanging beam device for a crane, comprising: 3. The crane suspension beam device according to claim 2, wherein the balance weight is automatically moved based on a measurement value of an inclinometer for measuring an amount of inclination of the suspension beam. 4. The rotating mechanism is perpendicular to the suspension beam.
A rigid vertical member connected to the
Having a diagonal member connecting the other end of the suspension beam.
The clay according to any one of claims 1 to 3, characterized in that:
Hanging beam device.