JP3078207B2 - Operating method of hoist transfer type overhead crane - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a method for operating a hoist transfer type overhead traveling crane.

[0002]

2. Description of the Related Art In recent years, an all-weather temporary frame has been proposed as a temporary scaffold for the construction of a high-rise building having an RC structure.
This temporary frame is constructed by erecting a plurality of temporary columns around the building to be constructed and supporting a roof frame on the upper part between the temporary columns. By lifting the roof frame while supporting the pillars upward, the construction can be performed without being affected by the weather. An overhead crane is arranged on the lower surface of the roof frame, and materials lifted by an elevator or the like are transported to each part through the overhead crane and assembled.

The overhead crane is adapted to transport materials in a horizontal direction. As shown in FIG. 6, a transport girder 1 as a main girder is mounted so as to be able to travel on a main rail 2, and a transport girder is provided. A pair of built-in girders 4, 4a as sub-girder are mounted on sub-rails 3, 3a arranged on both sides of the vehicle 1 so as to run. The built-in girder 4, 4 a is provided with a hoist 5 for suspending a load. In a state where the hoist 5 is transferred to the transfer girder 1, the material lifted from the temporary elevator 6 is hung. It has become.

Then, the transport girder 1 moves on the main rail 2 with the materials suspended, and the built-in girder 4, 4a
The material is transported to a target site by transferring the hoist 5 in a state in which the hoist 5 is arranged in line with one of the hoists.

In the overhead crane, the moving position of the crane girder of the transport girder 1 and the built-in girder 4, 4a and the moving position of the hoist 5 are controlled by radio control.

[0006]

However, in such a conventional hoist transfer type overhead traveling crane, the crane girder is composed of the transport girder 1 and the built-in girder 4, 4a.
When three hoists 5 are provided in this overhead crane, the crane girder 1, 4, 4a
There are nine (3 × 3) combinations of the crane girder 1, 4, and 4a and the hoist 5 in the operation method in which the hoist 5 is transferred. At this time, when three operators are arranged corresponding to each hoist 5, each operator holds a plurality of operating devices (three operating devices for crane girder and one operating device for hoist). Each hoist 5
Need to be manipulated.

However, in such a conventional method of operating the overhead crane, the operator must have a plurality of operating devices, and at the time of operation, a model is selected according to the moving position of the hoist 5 and the hoists 5 are connected to each other. Careful operation is required to ensure that collisions are avoided. Therefore, there has been a problem that the operation operability of the overhead crane is deteriorated, so that it takes time to transport the material, which is a great obstacle to shortening the construction period.

In view of the above-mentioned problems, the present invention has an operator corresponding to each crane girder having only one operating device, and each operating device receives an operation of a hoist located on one crane girder. An object of the present invention is to provide a method of operating a hoist transfer type overhead traveling crane in which the operability of the overhead traveling crane is remarkably improved by having the overhead traveling crane.

[0009]

Means for Solving the Problems To achieve the above object, the invention according to claim 1 of the present invention is to reciprocate a main girder reciprocating on a main rail and sub rails arranged on both sides of the main rail. An elevator including a pair of moving sub-girder and a load hoist that is movably attached to the main girder and the sub-girder, and that can be transferred between the respective girders in a state where the two girders are aligned in a straight line. In a hoist transfer type overhead traveling crane configured to transfer the lifted luggage to and from a hoist located on the main girder, each of the three crane girders of the main girder and the pair of sub-girders has a crane. A main controller for controlling a moving position of the girder on each rail; The crane girder is provided with a sub-control device for controlling the moving position of the crane girder, a dedicated operator is provided for each crane girder, each operator controls the corresponding main control device, and each operator has a dedicated crane girder. Is controlled by an operator of the hoist.

Therefore, according to the transfer type hoist transfer method provided in the overhead crane of the present invention, when the hoist is transferred from the main girder to the sub girder, first, the main girder and the sub girder are aligned with each other in a straight line. Thereafter, the operator of the main girder operates to transfer the hoist to the sub girder. Then, the hoist that has moved onto the sub girder is moved by the operation of the operator of the sub girder. still,
Conversely, even when the hoist is transferred from the sub girder to the main girder, after transferring to the main girder, the operator of the main girder manages the movement of the hoist.

In the invention according to claim 2 of the present invention, when the hoist moves between the main girder and the sub girder, control by an operator dedicated to operation of the main girder is preferentially performed. Yes, the operability and safety of the overhead crane are greatly improved.

[0012]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. 1 to 5 show an embodiment of an operation method of a hoist transfer type overhead crane according to the present invention. FIG. 1 is a front view showing an all-weather temporary roof to which the overhead crane according to the present invention is applied, and FIG. Is a plan view of the overhead crane, FIG. 3 is a circuit diagram of the overhead crane, FIG. 4 is an explanatory diagram showing a flow of a unique operation control signal of the overhead crane,
FIG. 5 is an explanatory diagram showing a flow of an operation control signal at the time of transfer to the hoist.

That is, this embodiment shows a case in which the overhead crane of the present invention is applied to an all-weather temporary roof.
As shown in FIG.
2 are constructed sequentially from the lower floor to the upper floor.

The all-weather temporary roof 10 is provided with four temporary pillars 14 arranged outside the building 12 to be constructed.
, A climbing mechanism 16, 16 attached to each of the temporary columns 14, 14 so as to be able to move up and down, and four corners fixed to each of the climbing mechanisms 16, 16, ..., and a roof frame 18 that horizontally covers the entire upper surface of the building 12. And an overhead crane 20 is provided on the lower surface of the roof frame 18.

A temporary elevator 22 for material lifting is disposed at the center of one side of the building 12, and materials such as precast members lifted through the temporary elevator 22 are supplied to a hoist 24 running on the overhead crane 20. And supplied to each part of the floor of the building 12.

The temporary columns 14, 14... Can be selected from cylindrical columns in addition to truss columns.
Is supported by a horizontal stay 26 having one end fixed to an appropriate part of the hoist 2 while maintaining the independence, and the hoist 2
The height of the roof frame 18 can be sequentially increased by adding the temporary support columns 14 supplied by 4 upward.

The climbing mechanisms 16, 16,... Are provided with a guide sleeve 16a inserted around the outer periphery of the temporary support posts 14, 14,. 16b
And an intermediate frame 16c. The upper and lower portions of the guide sleeve 16a are divided into two parts, and the corners of the roof frame 18 are fixed between the two parts. A lower frame 16d surrounding the outer periphery of the temporary support column 14 is also arranged below the intermediate frame 16c, and a plurality of lifting hydraulic jacks 16 are provided between the two frames 16c, 16d.
connected by e.

The intermediate frame 16c and the lower frame 1
A pin (not shown) inserted removably into the temporary support 14 is inserted into 6d, and the climbing mechanism 16 is supported and fixed to the temporary support 14 by the pin. When the climbing mechanism 16 is stopped, the hydraulic jack 16e contracts and is supported at a predetermined height of the pin.

When the climbing mechanism 16 is lifted, the pins of the intermediate frame 16c are pulled out, the hydraulic jack 16e is extended, and the portion above the intermediate frame 16c is raised by the jack stroke. Next, after inserting a pin into the intermediate frame 16c and fixing it to the temporary support 14, the pin of the lower frame 16d is pulled out, the hydraulic jack 16e is shortened, the lower frame 16d is moved up, and the lower frame 16d is lifted. The temporary support 14
Pin. In this manner, the four climbing mechanisms 16, 16 provided on the respective temporary columns 14, 14,... Respectively are raised in synchronization with the rise of the construction floor, so that the roof frame 18 maintains a horizontal state. Can be lifted.

As shown in FIG. 2, the overhead crane 20 is located at the center of the lower surface of the roof frame 18 corresponding to the temporary elevator 22, and is located at both sides of the main rail 28. Sub-rails 30 and 30a arranged in parallel with the main rail 28. The main rail 28 includes a transfer girder 32 as a main girder.
Are movably supported and the sub rails 30, 30
A built girder 34, 34a as a sub girder is movably supported by a.

In this embodiment, the overhead crane 2 is used.
0, three first, second, and third hoists 24a, 24b,
24c, the first hoist 24a is located on the transfer girder 32, and the second and third hoists 28b, 28
c shows the case where it is located in the built girder 34, 34a of both sides.

The overhead crane 20 has a circuit configuration as shown in FIG.
2. The movement of each crane girder of the built girder 34, 34a and the movement of each hoist 24a, 24b, 24c are controlled. That is, the overhead crane 20 includes a first transmitter 36, a second transmitter 36a, and a third transmitter 36b as operating devices carried by each operator, and these first, second, and third transmitters 36, 36a are provided. , 36b are connected to the corresponding crane girder 32, 3 respectively.
4, 34a provided in the first, second and third receivers 38, 38
a, 38b.

Each of the crane girders 32, 34,
34a is provided with first, second, and third main control devices (girder control panels) 40, 40a, and 40b, and the corresponding first, second, and third receivers 38, 38a, and 38b are respectively provided.
Is connected. The main control units 40, 40a, 40b
Are the crane girders 32, 34, 34a on the rails 28, 3
The position at which 0, 30a is moved is controlled. Each of the main control devices 40, 40a, 40b is connected to each hoist 2 via first, second, and third trolleys 42, 42a, 42b disposed along the respective crane girders 32, 34, 34a.
The first, second, and third sub-control devices (hoist control panels) 44, 44a, and 44b provided in 4a, 24b, and 24c are connected. And each hoist 24a, 24b, 24c
Crane girder 32, 34, 34a where each is located
Controls the position to move along. Further, each of the rails 28, 30, on which the crane girder 32, 34, 34a moves,
First, second and third trolley cables 4 along 30a
6, 46a, 46b are routed, and the main control devices 40, 40a, 40b corresponding to these trolley cables 46, 46a, 46b, respectively, are connected. The upper ends of the trolley cables 46, 46a, 46b in the figure are connected to each other.

The overhead crane 20 having the above-described configuration operates as an operation control signal shown in FIG. 4 when the hoist is not required to transfer the hoist to another crane girder, and transfers the hoist to another crane girder. Fig. 5
The operation control signal shown in FIG. That is, as shown in FIG. 4, in the operation state of the single operation, the first operator operates the first transmitter 34 to drive the first main controller 40 via the first receiver 38. The moving amount of the transport girder 32 is controlled, and the first sub-control device 44 is driven via the first trolley 42 to control the moving amount of the first hoist 24a.

Next, in the operation state at the time of transfer shown in FIG. 5, a signal is transmitted from the first transmitter 36 to the first main controller 40 via the first receiver 38, and the transport girder 32 moves. After that, the first main controller 40b is controlled from the first trolley cable 46 via the third trolley cable 46b, and the third sub controller 44a is further driven via the third trolley 42b to make the first transmission. The hoist 24 transfers to the built-in girder 34a by a signal from the vessel 36. Then, after the transfer of the hoist from the transport girder 32 to the built-in girder 34a is completed, the built-in girder 34 is
The operation of the hoist to which the operator dedicated to the operation a has shifted has been given priority. That is, in the present embodiment, the hoist 24 is moved from the transport girder 32 to the built-in girder 3.
4a, the transfer girder 32 and the built-in girder 34
a is connected in a straight line, and the hoist 24 is transferred,
Until the connection between the two girders is released, the control by the operator dedicated to the operation of the transport girder 32 is preferentially performed.

In FIG. 4, the transport girder 3 disposed at the center is shown.
2 is shown as an example, but the built-in girders 3 on both sides are shown.
Of course, the present invention can be applied to the control of 4, 34a. FIG. 5 shows an example in which the hoist is transferred from the transport girder 32 to the built-in girder 34a on the right side in the figure, but the control in the case where the hoist is transferred from the built-in girder 34, 34a to the transport girder 32 is described. Applicable. In this case, when the transport girder 32 and the built-in girders 34 and 34a are connected in a straight line, control by the dedicated operator of the transfer girder 32 may be performed in preference to control by the dedicated operator of the built-in girder 32. desirable.

In other words, the hoist 24 is connected to the transfer girder 3
When transiting between 2 and built-in girder 34, 34a,
The priority is given to the control by the operator dedicated to the operation of the transfer girder 32, and the operability and safety of the overhead crane 20 are greatly improved.

As described above, in the operation method of the hoist transfer type overhead traveling crane of this embodiment, the hoist 2
When transferring 4a, 24b, 24c from the transport girder 32 to the built-in girders 34, 34a, first, the transport girder 32
And the built-in girders 34, 34a are aligned in a straight line, and then the hoist 24a, 24b, 24c is operated by an operator in charge of the transfer girder 32 and the built-in girders 34, 3 are operated.
Transfer to 4a. Then, the hoists 24a, 24b, 24c that have moved onto the built-in girders 34, 34a are moved by the operation of the built-in girders 34, 34a.
Further, even when the hoists 24a, 24b, 24c are transferred from the built-in girders 34, 34a to the transfer girder 32, the transfer girder 3 is transferred after the transfer to the transfer girder 32.
The second operator manages the movement of the hoists 24a, 24b, 24c.

Therefore, the three operators who are in charge of the transport girder 32 and the built-in girders 34, 34a, when the hoists 24a, 24b, 24c are located on the crane girder 32, 34, 34a respectively in charge, To operate the movement of 24a, 24b, 24c, each operator is required to operate the transmitters 36, 36a, 36b.
Of the overhead crane 20
Operability and safety can be greatly improved.

[0030]

As described above, the invention according to claim 1 of the present invention is directed to a method of transporting a transfer hoist provided on an overhead crane, wherein the main girder and the pair of sub-girder are each provided with a crane. A main controller that controls the moving position where the girder moves each rail is provided, and a sub-control device that controls the moving position where the crane girder moves the hoist is provided, and a dedicated operator is arranged for each crane girder, Each operator controls the corresponding main control device, and controls the sub-control device via the main control device,
Since the operation of the hoist located on the crane girder dedicated to each operator is given priority to the operation of the operator, when transferring the hoist between the main girder and the sub girder, first, the main girder and the sub girder are aligned in a straight line. After that, the operator of the crane girder where the hoist is located operates to transfer the hoist to the other crane girder, and the control of the hoist after the transfer is performed by the operator of the crane girder where the hoist is located. can do. Therefore, each operator operates the hoist when the hoist is located on the crane girder dedicated to the operator, so each operator only needs to have a dedicated operating device, and the operation of the overhead crane This greatly improves the performance and safety, and achieves an excellent effect of shortening the construction period.

In the invention according to claim 2 of the present invention, when the hoist moves between the main girder and the sub girder, the control by an operator dedicated to the operation of the main girder is preferentially performed. ,
Operability and safety of the overhead crane are greatly improved.

[Brief description of the drawings]

FIG. 1 is a front view showing an all-weather temporary roof using a hoist transfer type overhead traveling crane to which an operation method according to the present invention is applied.

FIG. 2 is a plan view showing one embodiment of a hoist transfer type overhead traveling crane to which the operating method according to the present invention is applied.

FIG. 3 is a circuit diagram showing one embodiment of a hoist transfer type overhead traveling crane to which the operating method of the present invention is applied.

FIG. 4 is an explanatory diagram showing a flow of a unique operation control signal of a hoist transfer type overhead traveling crane to which the operation method of the present invention is applied.

FIG. 5 is an explanatory diagram showing a flow of an operation control signal when the hoist transfer type overhead crane to which the operation method of the present invention is applied is transferred.

FIG. 6 is a schematic configuration diagram showing a conventional hoist transfer type overhead traveling crane.

[Explanation of symbols]

Reference Signs List 20 overhead crane 22 temporary elevator 24 hoist 24a first hoist 24b second hoist 24c third hoist 28 main rail 30, 30a
Sub rail 32 Transfer girder (main girder) 34, 34a Built-in girder (sub girder) 40, 40a, 40b Main controller 44, 44a, 44b Secondary controller

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Tatsuya Wakisaka 4-640 Shimoseito, Kiyose-shi, Tokyo Co., Ltd. Inside Obayashi Corporation Technical Research Institute (72) Kyoichi Hishikawa 4-640 Shimoseito, Kiyose-shi, Tokyo Co., Ltd. Obayashi Technical Research Institute (72) Inventor Noriyuki Furuya 4-640 Shimoseito, Kiyose-shi, Tokyo, Japan Incorporated Obayashi Technical Research Institute Co., Ltd. (72) Kohei Kurita 4-640 Shimoseito, Kiyose-shi, Tokyo, Japan Obayashi Technical Research Co., Ltd. In-house (72) Inventor Hideo Ono 4-640 Shimoseito, Kiyose-shi, Tokyo Co., Ltd.In Obayashi Corporation Technical Research Institute (72) Inventor Yasuo Inoue 4-640 Shimoseito, Kiyose-shi, Tokyo Co., Ltd.Obayashi Gumi Technical Research Institute (56) References JP-A-5-238677 (JP, A) JP-A-62-79195 (JP, A) JP-A-8-319089 ( P, A) JitsuHiraku flat 7-40671 (JP, U) (58 ) investigated the field (Int.Cl. ^7, DB name) B66C 7 / 12,13 / 48

Claims (2)

(57) [Claims] 1. A main girder for reciprocating on a main rail, a pair of sub girder for reciprocating on sub rails arranged on both sides of the main rail, and movably mounted on the main girder and the sub girder. A load hoist that can be transferred between the respective girders in a state where they match each other, so that the load lifted by the elevator is delivered to and from the hoist positioned on the main girder. In the hoist transfer type overhead traveling crane, the main girder and the pair of sub-girder are each provided with a main control device for controlling a moving position at which each crane girder moves a respective rail, and the hoist is provided on the hoist. A sub-control device is provided to control the moving position of the crane girder. Each operator controls a corresponding main control device, and controls the sub-control device via the main control device. A method of operating a hoist transfer type overhead crane, wherein control of a hoist located is performed by an operation of the operator. 2. A method for operating a hoist transfer type overhead traveling crane, wherein when the hoist moves between a main girder and a sub girder, control by an operator dedicated to operation of the main girder is preferentially performed. .