JPH08188394A - Working equipment for long material - Google Patents

Abstract

PURPOSE: To successively send a plurality of long materials to predetermined locations and to contrive exact positioning by interposing load cradles for supporting the long materials at both the ends from the lower portion, and feeding devices for transferring the long materials in the width direction to send the long materials to upper corresponding locations on a cradle on a travel truck and by elevating the load cradles. CONSTITUTION: A swing table 8b is placed, via a lifting device 6 and a turntable device 8 on a movable travel truck 1. A pair of load cradles 11 are elevated at the front and rear of the swing table 8b with lower lateral bracings F supported at both the ends from the lower portion and with the aid of elevating cylinder devices 13. Interposed are feeding devices 14 for transferring the lower lateral bracings F delivered from the load cradles 11 and for sending the lower lateral bracings F to upper corresponding locations on a cradle 10. Thus, a plurality of long materials are successively sent to predetermined positions; and positioning is exactly done to efficiently perform work.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a long material working device used for positioning and attaching a long material such as a lower horizontal structure to a frame of an iron girder bridge.

[0002]

2. Description of the Related Art Conventionally, for example, in manufacturing work of an iron girder bridge structure, a gate type crane device is used for distribution, loading, dismantling and accumulating work of the lower horizontal structure. It was done by a name worker.

[0003]

However, it takes too much time for the crane to carry out the distribution work of the lower horizontal structure, and when loading with the crane, there are too many blind spots from the viewpoint of the driver. It is necessary to increase the number of sling signals,
Further, there is a problem that it is difficult to finely adjust the vertical and horizontal directions.

By the way, for example, as a working device used when lifting a pipe to a high place for piping in a piping work, for example, Japanese Utility Model Laid-Open No. 6-59390 discloses a "piping pipe material lifting device". This discloses that a pantograph type lift device is provided on a freely movable carriage, and a device for finely adjusting the posture of a pipe is provided on a lift table. Therefore, if the above-mentioned lift device is applied to a long material, it is possible to easily perform the material distribution and mounting work of the lower horizontal structure.

However, the lower horizontal structure requires a plurality of long materials to be sequentially distributed and mounted, and it is extremely inefficient to carry in and work one long material at a time. The present invention solves the above problems and provides a working device for a long material that can carry in a plurality of long materials sequentially at predetermined positions and accurately position them, and can perform work efficiently. To aim.

[0006]

In order to solve the above-mentioned problems, the working apparatus for long material of the present invention has a table arranged on a movable carriage via a lift device and a turntable. A working device for a long material, in which a slidable pedestal is arranged via a fine adjustment device, and a pair of cargo receiving pedestals capable of supporting the long material from below on both sides of a table of a traveling carriage. And a feeding device capable of feeding the supported long material in the width direction and feeding it to a position corresponding to the upper side of the cradle, and at least an elevating device for raising and lowering the cargo cradle is provided.

[0007]

In the above structure, after receiving a plurality of long members on the receiving table and moving the traveling vehicle to the working position,
By sequentially transferring long materials to the cradle by the feeder, use the lifting device, turntable device, and fine adjustment device to mount the long materials at the target mounting position, and perform this work continuously. Therefore, the work time can be significantly shortened as compared with the conventional method, and the work can be performed efficiently.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a working device for long material according to the present invention will be described below with reference to the drawings. As shown in FIGS. 1 to 3, the traveling vehicle 1 is provided with a pair of left and right front wheels 3 that can be steered by a steering device 2 including a steering cylinder, a chain, and a sprocket in the front part, and in the rear part. A pair of left and right rear wheels 5 that are rotationally driven by the traveling drive device 4 are provided.

A pantograph-type lift device 6 for raising and lowering an elevating table 7 by a plurality of link frames 6a and a lift cylinder device 6b is arranged in the center of the traveling carriage 1. The lift table 7 is rotatably supported by bearings 8a and is provided with a turntable (table) 8b which is swiveled around a vertical axis by a known rotation mechanism such as a cylinder device or a gear mechanism. A table device 8 is provided. A pedestal 10 that can be finely adjusted in the front-rear direction (the length direction of the lower horizontal structure F) is arranged on the revolving table 8b via a fine adjustment device 9 including a guide rail and a drive cylinder. A lower lateral structure F having an inverted T-shaped cross section can be held on the pedestal 10 via a holder.

In front of and behind the lift device 6 of the traveling carriage 1, a pair of front and rear cargo receiving pedestals 11 capable of supporting the lower lateral structure F from below on both sides are vertically movable via the guide rod 12a and the guide cylinder 12b. Lifting cylinder device (lifting device) arranged in the center of the width direction of the
13 piston rods are connected and driven up and down. Further, inside the cargo receiving table 11, there are provided feeding devices 14 in each of which a plurality of feed driving rollers 14a are arranged on the left and right sides of a frame in the left-right direction at a constant pitch in the left-right direction. Further, the cargo receiving table 11 can be lowered below the conveying surface of the feeding device 14, and as shown in FIG. 4, a plurality of lower lateral structures F received above can be delivered to the feeding device 14. With the feeding device, the lower lateral structures F received on both the left and right sides can be fed to the corresponding positions of the pedestal 10 in the center.

The working device including the traveling carriage 1 is operated by a remote control by radio or a controller connected to the control device of the traveling carriage 1.

FIG. 5 shows the dedicated rack 21 of the lower horizontal frame F. This dedicated rack 21 has columns 2 that are erected at the four corners.
2 and a vertical beam member 23 that connects the front and rear columns 22 to each other,
A horizontal beam member 24 that connects the left and right columns 22 at the upper portion of the vertical beam member 23 and supports the front and rear portions of the plurality of lower horizontal structures F.
Of the horizontal beam members 24A and 24B, for example, the front horizontal beam member 24A has a vertical beam member 23 at one end.
It can be freely attached to the
The other end is detachably placed on the vertical beam member 23, and the front side is openable. Also, the horizontal beam member 22 is
The dedicated rack 2 of the lower horizontal structure F is set above the feeding device 14, and the receiving table 10 and the cargo receiving table 11 are in the lower accommodation state.
You can enter within 1.

The operation of mounting the lower horizontal structure F on the bridge girder frame in the above configuration will be described. (1) First, the traveling carriage 1 is accommodated at the lower limit of the cradle 10 and the cargo cradle 11, and the plurality of lower horizontal frames F are the horizontal beam members 24A,
It is made to enter into the dedicated rack 21 placed on 24B and stopped at the central position.

(2) The elevating cylinder device 13 is advanced to raise the load receiving base 11, and the front and rear load receiving bases 11 push up and receive a plurality of lower lateral structures F from below. Then, after the front horizontal beam member 24A is pivoted forward to be opened, the traveling carriage 1 is withdrawn and separated from the dedicated rack 21,
As shown in FIG. 4, the lifting cylinder device 13 is contracted to lower the load receiving base 11, and the lower horizontal structure F is transferred onto the feeding device 14.

(3) The traveling carriage 1 is caused to travel to enter below the bridge girder frame and stop below the mounting position. Then, the pedestal 10 is slightly raised by the lift device 6 to receive one lower horizontal structure F through the holder, and the lift device 6 is further driven to raise the lifting table 7 and the lower horizontal structure F is attached to the mounting position. Lift up to. Further, the turntable device 8 is driven to rotate the lower horizontal structure F, and then the fine adjustment device 9
Then, adjust the position of the lower horizontal structure F and mount it at the mounting position of the bridge girder frame, and fix it.

(4) After the pedestal 10 is lowered by the lift device 6, the traveling carriage 1 is driven and stopped below the next mounting position. Then, after one lower horizontal structure F is moved to above the pedestal 10 by the feeding device 14, this lower horizontal structure F is received and lifted as in the previous case, and mounted at the mounting position. In this way, the work is repeated in sequence to make all the lower horizontal frames F into bridge girder frames.

According to the above-described embodiment, the plurality of lower horizontal structures F are received by the cargo receiving table 11 and the feeding device 14 is used to receive the receiving table 10.
Therefore, it is not necessary to return to the lower horizontal frame F for each mounting work, and the work efficiency can be greatly improved. Also, with this work device, the working time is about 1/1 compared with using a conventional gate crane.
It was possible to reduce the number to 0 and the number of workers.

[0018]

As described above, according to the present invention, a plurality of long materials are received on the load receiving table, and the long materials are sequentially transferred to the receiving table by the feeding device at the working position, so that the lifting device is provided. The long material can be quickly mounted at the intended mounting position by using the turntable device and the fine adjustment device. Further, this mounting work can be performed continuously, and the work time can be significantly shortened compared to the conventional case, and the work can be performed efficiently.

[Brief description of drawings]

FIG. 1 is an overall perspective view showing a working state showing an embodiment of a working apparatus for long material according to the present invention.

FIG. 2 is a side view of the work apparatus.

FIG. 3 is a plan view of the work apparatus.

FIG. 4 is a perspective view showing another usage state of the work apparatus.

FIG. 5 is a perspective view showing a dedicated rack used in the work apparatus.

[Explanation of symbols]

 F Lower horizontal structure 1 Traveling dolly 6 Lifting device 7 Lifting table 8 Turntable device 9 Fine adjustment device 10 Receiving base 11 Loading platform 13 Lifting cylinder device 14 Feeding device 14a Feeding drive roller 21 Special rack

Claims (1)

[Claims] 1. A working device for a long material in which a table is arranged on a movable carriage by way of a lift device and a turntable, and a slide table is arranged on the table by means of a fine adjustment device. Then, on both sides of the table of the traveling carriage, a pair of load receiving bases capable of supporting the long material from both ends from below, and the supported long material are transferred in the width direction to the corresponding position above the receiving base. A working device for a long material, which is provided with a feeding device capable of feeding and is provided with an elevating device for elevating at least a load receiving table.