JP7193172B2 - Floor slab erection machine - Google Patents

Description

An embodiment of the present invention relates to a floor slab erection machine.

In recent years, a network of highways has been developed all over the country. Many highways have elevated structures. On elevated roads, bridge piers are installed on foundations. Bridge girders are placed on these piers, and floor slabs are arranged on the girders to create roads. In recent years, more and more expressways have undergone renovation work such as replacement of floor slabs on expressways that have been built for many years.
In the past, crane trucks were used to install floor slabs. In some elevated sections of highways, it is difficult to allow crane vehicles to enter construction sites, such as in mountainous areas. For this reason, a dedicated floor slab erecting machine has been developed to replace the crane vehicle that cannot enter onto the bridge girder (for example, Patent Document 1).

Japanese Patent Application Laid-Open No. 2004-232426

However, with the conventional floor slab erection machine, after loading it on a trailer or the like to the site and transporting it to the site, it must be lifted by a crane to the construction site on the bridge girder and installed, and after the construction is completed, it must be lowered by a crane. did not become. For example, there was a problem that a floor slab erection machine could not be installed in a place where a high-voltage power line was placed and the crane boom could not be turned.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a floor slab construction machine that can be installed on site without using heavy machinery such as a crane.

In order to achieve the above object, a floor slab construction machine according to the present invention is capable of standing independently by means of extendable legs, and is used for work to install or remove a floor slab on a bridge girder; A floor slab loading/unloading vehicle for lifting and unloading a floor slab to be loaded/unloaded onto/from the floor slab loading/unloading vehicle, the floor slab loading/unloading vehicle and the floor slab loading/unloading vehicle, which can stand alone by means of extendable legs. and a suspension device that travels on a continuous trolley rail.

It is a figure which shows the side surface of the floor slab construction machine by embodiment of this invention. 1 is a plan view of a floor slab construction machine according to the present embodiment; FIG. It is the figure which looked at the suspension apparatus from the front. It is a figure which shows the carrying-in operation of a floor slab working vehicle. It is a figure which shows the installation work of a floor slab carry-in/carry-out vehicle. It is a figure which shows the carrying-in operation|work of the revolving arm, revolving beam, and suspension beam which are used for a suspension apparatus. It is a figure which shows the operation|work which mounts a floor slab on a carrier and carries in a floor slab from a material yard. It is a figure which shows the operation|movement which rotates the carried-in floor slab by 90 degree|times. FIG. 10 is a diagram showing a state in which the new floor slab has moved to the installation position after turning. FIG. 10 is a diagram showing the operation of moving the floor slab construction machine to the next section after installing four floor slabs for one section;

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a floor slab construction machine according to the present invention will be described below with reference to the accompanying drawings.
FIG. 1 is a side view of a floor slab construction machine according to an embodiment of the present invention. FIG. 1 shows the entire floor slab construction machine assembled on a bridge girder 10 . Reference number 12 indicates a new floor slab to be installed on top of the bridge girder 10 . 13 is an old existing floor slab. The floor slab construction machine of the present embodiment is roughly divided into three parts: a floor slab working vehicle 14 , a floor slab loading/unloading vehicle 15 , and a carriage 16 .

The floor slab work vehicle 14 is a component having a function of erecting the floor slab 12 on the bridge girder 10 and removing it. The floor slab loading/unloading vehicle 15 is a component for carrying the floor slab 12 into/out of the carriage 16 . The floor slab 12 is loaded onto and unloaded from the carriage 16 to and from the loading platform of the trailer at a material yard (not shown).

FIG. 2 is a plan view of the floor slab construction machine according to this embodiment.
On the road surface of the existing floor slab 13, inner rails 17a and 17b of a narrow gauge track are laid. Outer rails 18a and 18b of broad gauge tracks are laid in parallel outside the inner rails 17a and 17b. A floor slab working vehicle 14 and a carriage 16 run on the inner rails 17a and 1b. A floor slab loading/unloading vehicle 15 runs on the outer rails 18a and 18b.

First, the configuration of the floor slab working vehicle 14 will be described. Here, the front-rear direction is the direction in which the inner rails 17a, 17b and the outer rails 18a, 18b extend, and the left-right direction is the left-right direction in the front-rear direction.
1 and 2, the floor slab working vehicle 14 has a rectangular floor slab working vehicle truss structure 20 as its main body. Cylinders 21A and 21B are arranged at four front, rear, left and right ends of the truss structure 20 so as to constitute front and rear legs, and are horizontally supported by the cylinders 21A and 21B. Running wheels 22A, 22B rolling on the inner rails 17a, 17b are attached to the tips of the piston rods of the cylinders 21A, 21B. The truss structure 20 horizontally carries trolley rails 23a and 23b on which a suspension device 40 (to be described later) runs.

Next, the configuration of the floor slab loading/unloading vehicle 15 will be described.
The floor slab loading/unloading vehicle 15 also has a floor slab loading/unloading vehicle truss structure 25 of rectangular parallelepiped as the main body, like the floor slab working vehicle 14 . Cylinders 26A and 26B are arranged at four front, rear, left and right ends of the floor slab loading/unloading vehicle truss structure 25 so as to constitute front and rear legs, and are horizontally supported by the cylinders 26A and 26B. The tips of the piston rods of the cylinders 26A, 26B are connected to self-propelled traveling wheels 28A, 28B that travel on the outer rails 18a, 18b. Trolley rails 30a and 30b on which a lifting device (to be described later) travels are horizontally supported by the truss structure 25 for loading/unloading the floor slab. The trolley rails 30a and 30b are continuous rails with the trolley rails 23a and 23b of the floor slab working vehicle 14 by connecting fittings 31 and 32, respectively.

The carriage 16 transports the new floor slab 12 unloaded from the loading platform of the trailer to the floor slab loading/unloading vehicle 15 in the construction of a new road, and the removed existing floor slab 13 in the renewal work of the existing floor slab 13. It is a carriage used for receiving under the floor slab loading/unloading vehicle 15 and carrying it out to the trailer. Two pairs of self-propelled traveling wheels 33 and driven-side traveling wheels 34 are provided on the carriage 16, and are self-propelled on the inner rails 17a and 17b.

Next, the configuration of the suspension device 40 will be described.
The suspension device 40 is a self-propelled lifting device that travels along the trolley rails 23a, 23b and the trolley rails 30a, 30b.
FIG. 3 is a front view of the suspension device 40. FIG.

The suspension device 40 includes two left and right electric chain blocks 42a and 42b. These electric chain blocks 42a, 42b are supported by electric trolleys 43a, 43b running on trolley rails 23a, 23b and trolley rails 30a, 30b. A swing arm 44 is horizontally supported by the electric chain blocks 42a and 42b so as to extend in the left-right direction. A swivel beam 46 is suspended from the center of the swivel arm 44 via a rotating device 45 . Suspension beams 49 are suspended from both ends of the swivel beam 46 via threaded rods 48a and 48b. The new floor slab 12 or the existing floor slab 13 is attached to the suspension beams 49 .

The floor slab erection machine according to the present embodiment is configured as described above. Next, the operation and effects of the floor slab construction machine will be described, taking the installation and renewal work of floor slabs in elevated road sections as an example. do.
First, the on-site assembly of the floor slab construction machine according to the present embodiment will be described.
FIG. 4 is a diagram showing the carrying-in operation of the floor slab working vehicle 14. As shown in FIG.
In FIG. 4A, a trailer 50 loaded with a floor slab working vehicle 14 is stopped at a work place on a road. Inner rails 17a and 17b are laid here. At this time, the floor slab working vehicle 14 is placed on the loading platform of the trailer 50 via the carriage 51 for transportation. Next, in FIG. 4A, cylinders 21A and 21B extend as legs supporting the truss structure 20 for the floor slab working vehicle.
As shown in FIG. 4B, the running wheels 22A, 22B at the lower ends of the piston rods of the cylinders 21A, 21B land on the inner rails 17a, 17b, so they can stand on their own. When the trailer 50 is withdrawn, the floor slab working vehicle 14 can be installed.

Next, FIG. 5 is a diagram showing the installation work of the floor slab loading/unloading vehicle 15. As shown in FIG.
In FIG. 5(A), another trailer 50 loaded with the floor slab loading/unloading vehicle 15 is parked behind the floor slab working vehicle 14 . At this time, the floor slab loading/unloading vehicle 15 is placed on the loading platform of the trailer 50 via the transportation platform 51 . Next, when the cylinders 26A and 26B extend as legs supporting the truss structure 25 for loading/unloading the floor slab, the traveling wheels 28A and 28B land on the outer rails 18a and 18b and stand on their own. After that, as shown in FIG. 5(B), the trailer 50 is withdrawn.
As described above, according to this embodiment, the floor slab construction machine is divided into the floor slab work vehicle 14 and the floor slab loading/unloading vehicle 15, so that each can be loaded on the trailer 50 and carried in, and can stand on its own. Heavy machinery such as a crane vehicle is not required.

After that, as shown in FIG. 5B, the trolley rails 23a and 23b of the floor slab working vehicle 14 and the trolley rails 30a and 30b of the floor slab loading/unloading vehicle 15 are connected to continuous rails by connecting fittings 31 and 32. are connected so that

Next, FIG. 6 is a diagram showing the loading operation of the swivel arm 44, the swivel beam 46, and the suspension beam 49 used in the suspension device 40. As shown in FIG.
As shown in FIG. 6(A), the swing arm 44, the swing beam 46, the trailer 50 loaded with the suspension beam 49, and the floor slab loading/unloading vehicle 15 enter under the truss structure 25. As shown in FIG. After that, the swivel arm 44, the swivel beam 46, and the suspension beam 49 on the loading platform are attached to the suspension device 40 in sequence.
After that, the electric chain blocks 42a and 42b are operated to lift the revolving beam 46 and suspension beam 49, and the trailer 50 is withdrawn as shown in FIG. 6(B).

Next, the operation of installing and updating the new floor slab 12 on the bridge girder 10 by the floor slab construction machine prepared as described above will be described.
FIG. 7 is a diagram showing the operation of placing the new floor slab 12 on the carriage 16 and transporting the new floor slab 12 from a material yard (not shown).
First, in FIG. 7(A), the carriage 16 loaded with the new floor slab 12 is moved under the floor slab loading/unloading vehicle 15 . Then, in FIG. 7B, by fixing the suspension beams 49 to the floor slab 12, the new floor slab 12 can be lifted by the electric chain blocks 42a and 42b. After that, the carriage 16 leaves and goes to the material yard to pick up the next new floor slab 12 .

Next, FIG. 8 is a diagram showing the operation of turning the new floor slab 12 that has been brought in by 90 degrees. 8(A) is a plan view of the floor slab construction machine viewed from above, and FIG. 8(B) is a side view of the floor slab construction machine viewed from the side.
The new floor slab 12 is a long member, and is hung in the longitudinal direction parallel to the bridge girder 10 and brought in. - 特許庁The new floor slab 12 cannot be installed on the bridge girder 10 while the new floor slab 12 faces this direction. The new floor slab 12 must be turned 90 degrees. Therefore, as shown in FIG. 8B, the tip of the piston rod of the cylinder 21B, which is the rear leg, is removed from the traveling wheel 22B in advance, and the piston rod is retracted. As a result, even if the floor slab 12 is rotated after the new floor slab 12 is pulled under the floor slab working vehicle 14, it does not interfere with the rear legs, and a turning space can be secured. After that, the new floor slab 12 is rotated by 90 degrees while operating the rotating device 45 .

FIG. 9 is a diagram showing a state in which the new floor slab 12 has moved to the installation position after turning.
By lowering the new floor slab 12 with the electric chain blocks 42a and 42b, the new floor slab 12 can be installed at a determined position on the bridge girder 10.例文帳に追加During this time, the carriage 16 carrying the next new floor slab 12 is on standby after the floor slab loading/unloading vehicle 15, and enters the floor slab loading/unloading vehicle 15 as soon as the installation of the new floor slab 12 is completed. The electric chain blocks 42a and 42b move onto the carriage 16, hang the next new floor slab 12, and transport it to the next installation position.

Thereafter, the procedure of turning the new floor slab 12, moving it directly above the installation position, and lowering the new floor slab 12 is as described above. In the case of this embodiment, four floor slabs can be installed continuously without moving the floor slab construction machine.

Next, FIG. 10 is a diagram showing the work of moving the floor slab construction machine to the next section where four new floor slabs 12 for one section have been installed.
In this case, the floor slab working vehicle 14 is moved to the next adjacent section. As a preparation, the piston rods of the cylinders 21A and 21B serving as the legs of the truss structure 20 for the floor slab work vehicle and the cylinders 26A and 26B of the truss structure 25 for the loading/unloading vehicle for the floor slab are retracted, and the vehicle height is set to the minimum height. back. As braces for reinforcing the truss structure 20 of the floor slab working vehicle 14, turnbuckles 52 are attached between the front, rear, left, and right running wheels 22A, 22B. This is because the floor slab work vehicle 14 is towed by the floor slab carry-in/carry-in vehicle 15, so that a horizontal force is applied. After that, the floor slab working vehicle 14 is towed by the floor slab loading/unloading vehicle 15 and moved to the next section.

The above description is about the installation work of the new floor slab 12 on the bridge girder 10, but the removal work of the old existing floor slab 13 can be similarly performed by the floor slab construction machine of this embodiment.
In the case of removing the existing floor slab 13, the procedure for installing the new floor slab 12 is reversed. Specifically, the existing floor slab 13 is lifted (Fig. 9), the existing floor slab 13 is turned (Fig. 8), the existing floor slab 13 is conveyed to the floor slab loading/unloading vehicle 15, and the existing floor slab 13 is lowered onto the carriage 16 (Fig. 7). sequentially and repeatedly. In the above description, the installation of the new floor slab 12 was explained for the sake of convenience as an explanation of the floor slab update. The order of installation of plates 12 is repeated.

The removal of the floor slab erection machine from the site is also carried out in the reverse order of the installation procedure. That is, loading of the swivel arm 44, swivel beam 46, and suspension beam 49 used in the suspension device 40 onto the trailer (FIG. 6), and the floor slab after the floor slab loading/unloading vehicle 15 and the floor slab working vehicle 14 are disconnected from each other. Loading of the loading/unloading vehicle 15 onto the trailer (FIG. 5) and loading of the floor slab working vehicle 14 onto the trailer (FIG. 3) are carried out in this order. It is also the same that it does not require heavy machinery such as a crane truck as well as installation.

According to this embodiment, it is also possible to operate each operation such as installation of the floor slab erection machine, floor slab lifting, turning, lowering, moving, etc. by using a wireless control panel or the like, and to create an automated system.

As described above, the floor slab erection machine according to the present invention has been described with a preferred embodiment, but this embodiment is given as an example and is not intended to limit the scope of the invention. Of course, the novel devices, methods, and systems described herein can be embodied in various forms, and various omissions, substitutions, and alterations can be made without departing from the spirit of the invention. be. The scope of the claims and their equivalents is intended to cover any embodiment or modification thereof within the spirit of the invention.

DESCRIPTION OF SYMBOLS 10... Bridge girder, 12... New floor slab, 13... Existing floor slab, 14... Floor slab working vehicle, 15... Floor slab loading/unloading vehicle, 16... Transportation cart, 20... Floor slab working vehicle truss structure, 25... Floor slab unloading Entry truss structure 42a, 42b Electric chain block 40 Hanging device 44 Rotating arm 45 Rotating device

Claims (6)

a floor slab working vehicle capable of standing independently by means of telescopic legs, for work of installing or removing a floor slab on a bridge girder;
a floor slab loading/unloading vehicle for lifting and unloading a floor slab to be loaded/unloaded to/from the floor slab working vehicle, which can stand alone by means of extendable legs;
a suspension device that travels on a trolley rail that connects the floor slab work vehicle and the floor slab loading/unloading vehicle;
A floor slab erection machine comprising: 2. The floor slab construction machine according to claim 1, wherein the suspension device has a rotation device for rotating the floor slab while it is suspended. 3. The floor slab construction machine according to claim 2, wherein the leg on the rear side of the floor slab working vehicle secures a turning space for the floor slab by retracting the leg. 2. The floor slab construction machine according to claim 1, wherein the legs of the floor slab loading/unloading vehicle are supported by a self-propelled travel device. 5. The floor slab construction machine according to claim 4, wherein the floor slab work vehicle runs on a narrow gauge track, and the floor slab loading/unloading vehicle runs on a broad gauge track outside the narrow gauge track. 6. The floor slab construction machine according to claim 5, wherein a self-propelled carriage for carrying the floor slab in and out of the floor slab carry-in/out vehicle runs on the narrow gauge track.

Images