JPH11105979A - Membrane-attaching device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To semiautomate the work for attaching, by providing a drive trolley in a higher position in a tank and a follower trolley in a lower position, by connecting both and disposing an ascending/descending platform between them, and by attaching a moving device and a support device, used for a membrane, to the ascending/ descending platform. SOLUTION: An upper ring rail 9 which is smaller in diameter than an upper opening 3 is concentrically attached to the roof-support structure 2 of a tank main body 1 by means of a rail suspension device 8, and an upper drive trolley 12 movable by itself is attached to it. A lower ring rail 10, similar to the above, is attached to the inside bottom of the tank main body 1, and a lower follower trolley 13 is attached to it. Both the trolleys 12 and 13 are connected by means of a plurality of connecting members 14 comprising wires or the like, and an ascending/descending platform 16, which can ascend/descend by means of ascending/descending wires 18, is attached. The ascending/descending platform 16 is composed of a ladderlike vertical part 19 and a work stage 20, and the vertical part 19 is provided with various devices for supporting, moving, fastening a membrane 4. The membrane 4 is supported and moved by the vertical part 19 and fixed in position by a fastening tool, and thus the work can be semi automated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a membrane mounting device, and more particularly, to a membrane mounting device capable of semi-automatically mounting a membrane.

[0002]

2. Description of the Related Art For example, an underground tank has a structure in which a bottomed cylindrical tank body is formed of concrete underground, and a thin plate made of stainless steel called a membrane is attached to the inner peripheral surface of the tank body. .

Conventionally, the work of attaching the membrane to the tank body has been performed manually by an operator with a total scaffold assembled inside the tank body.

[0004]

However, the conventional manual work of attaching the membrane is a large-scale work requiring a large number of workers, and is troublesome. .

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a membrane mounting device which can semi-automatically mount a membrane.

[0006]

According to the present invention, there is provided a tank main body.
The upper ring rail 9 provided concentrically on the upper part of the tank, and the lower ring rail 10 provided on the bottom of the tank body 1
And an upper drive trolley 12 attached to the lower ring rail 10 so as to be able to run along the upper ring rail 9, a lower driven trolley 13 attached to the lower ring rail 10, and a connection between the upper drive trolley 12 and the lower driven trolley 13. A connecting member 14 to be moved up and down along the connecting member 14, and a membrane supporting device 21 attached to the lifting table 16 via a membrane moving device 22. It concerns the membrane mounting device.

In this case, an automatic nut fastening device 23 may be attached to the lift 16 via a fastening tool moving device 24.

According to the above means, the following effects can be obtained.

When the membrane 4 is mounted on the inner peripheral surface of the tank body 1, first, the elevator 16 is raised along the connecting member 14.

In this state, the panel-like membrane 4 is supplied to the portion between the lift 16 and the inner peripheral surface of the tank body 1 using a crane or the like, and the membrane moving device attached to the lift 16 is provided. The membrane 4 is supported using the membrane support device 22 and the membrane support device 21.

Then, the lifting table 16 is moved along the connecting member 14.
Is lowered to a required position, and the membrane 4 is positioned.

After that, by using the membrane moving device 22 attached to the lift 16, the embedding bolts protruding from the inner peripheral surface of the tank body 1 are used for the membrane 4.
Through. Next, by using the tightening tool moving device 24 attached to the lift 16, the automatic nut fastening device 23 is sent out toward the tip of the embedded bolt 6 except through the bolt hole of the membrane 4, and the automatic nut The membrane 4 is fixed to the inner peripheral surface of the tank body 1 by screwing a nut to the tip of the embedding bolt using the fastening device 23.

When one membrane 4 is fixed to the inner peripheral surface of the tank body 1 in this manner, the above operation is repeated to mount the membrane 4 on the existing membrane 4.

As described above, the membrane 4 for one row in the vertical direction
Is mounted, the upper driving trolley 12 is slightly moved along the upper ring rail 9 so that the position of the lifting platform 16 in the circumferential direction of the tank body 1 is shifted by one membrane.

Thereafter, the above operation is repeated to attach the membrane 4 to the entire inner peripheral surface of the tank body 1.

As described above, the mounting of the membrane 4 can be semi-automated, and the number of required personnel can be reduced so that the construction can be performed in a short time.

[0017]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 and 2 show an example of an embodiment of the present invention.

In the drawing, reference numeral 1 denotes a tank body made of concrete having a bottomed cylindrical shape and formed underground, and 2 supports a tank roof formed at a peripheral portion of an upper end opening 3 of the tank body 1 on the ground. A ring-shaped concrete roof support structure 4 is provided for mounting on the inner peripheral surface of the tank body 1, and a cooling material 5 such as perlite concrete is provided on the surface of the membrane 4 on the tank body 1 side. Are attached integrally.

An embedding bolt 6 protrudes horizontally from the inner peripheral surface of the tank body 1, and a bolt hole 7 through which the embedding bolt 6 passes is formed in the cold insulator 5 and the membrane 4.
After passing the cold insulator 5 and the membrane 4 through the embedding bolts 6, the nut is screwed on, so that the cold insulator 5 and the membrane 4 are fixed to the inner peripheral surface of the tank body 1.

According to the present invention, an upper ring rail 9 having a smaller diameter than the upper end opening 3 of the tank body 1 is attached to the roof support structure 2 via a rail hanger 8 concentrically with the upper end opening 3. A lower ring rail 10 having the same diameter as the upper ring rail 9 is disposed concentrically on the bottom of the main body 1.

The upper drive trolley 1 which can be driven by a drive device 11 such as a motor on the upper ring rail 9.
2, the lower driven trolley 13 is attached to the lower ring rail 10, and the upper driving trolley 12 and the lower driven trolley 13 are connected by a connecting member 14 such as a wire or a rod.

When the connecting member 14 is a wire, the lower end of the wire is not directly fixed to the lower driven trolley 13 but the lower end of the wire is connected to the lower driven trolley 1.
It is preferable that the tension of the wire can be adjusted by passing the wire through a loop (not shown) formed at 3 and fixing the wire to a middle portion through a tension adjuster 15.

A plurality of connecting members 14 are provided to prevent the rotation of the elevating table 16.

Further, an elevating table 16 is attached so as to be able to move up and down along the connecting member 14, an elevating device 17 such as a winch is attached to the upper drive trolley 12, and an elevating wire 18 wound around a winch constituting the elevating device 17 is provided. Is fixed to the lift 16 so that the lift 16 can be driven up and down.

The elevator 16 has a ladder-like vertical portion 19.
And a horizontal work stage 20 attached to the lower end of the vertical portion 19. The vertical portion 19 has a membrane support device 21 such as a suction cup attached to the tip of the rod and extends in the horizontal direction. A membrane moving device 22 such as a cylinder is attached. Further, a tightening tool moving device 24 such as a cylinder extending in the horizontal direction and having an automatic nut tightening device 23 mounted on the tip of the rod is mounted on the vertical portion 19.

In the drawing, reference numeral 25 denotes an operation panel attached to the lift 16, and 26 denotes a guide roller for guiding the lift 16 along the connecting member 14.

Next, the operation will be described.

When attaching the membrane 4 to the inner peripheral surface of the tank body 1, first, an operator on the work stage 20 operates the operation panel 25, and the lifting device 1 such as a winch is used.
The elevator 7 is driven to wind up the elevating wire 18, and the elevating table 16 is raised along the connecting member 14 such as a wire or a rod.

In this state, the integrated cold insulator 5 and the panel of the membrane 4 are supplied to the portion between the lift 16 and the inner peripheral surface of the tank body 1 by using a crane (not shown), A panel of the cold insulator 5 and the membrane 4 is suction-supported by using a membrane support device 21 such as a suction cup at a rod end of a membrane moving device 22 such as a cylinder attached to the vertical portion 19 of the table 16.

Then, the lifting / lowering device 17 such as a winch is driven to rewind the lifting / lowering wire 18 and the lifting / lowering table 16 is lowered to a required position along the connecting member 14 such as a wire or a rod. Position the panel.

Thereafter, the membrane moving device 22 such as a cylinder attached to the vertical portion 19 of the lift 16 is extended to move the embedded bolt 6 horizontally protruding from the inner peripheral surface of the tank body 1. Then, the cold insulator 5 and the bolt holes 7 of the membrane 4 are passed through. Next, by moving a tightening tool moving device 24 such as a cylinder attached to the vertical portion 19 of the elevating platform 16 to extend, the automatic moving device 24 is automatically moved toward the tip of the embedded bolt 6 through the bolt hole 7 of the membrane 4. The cooling nut 5 and the membrane 4 are fixed to the inner peripheral surface of the tank body 1 by feeding the nut fastening device 23 and screwing the nut to the tip of the embedding bolt 6 using the automatic nut fastening device 23. In performing the above operation, since the vertical portion 19 of the lift 16 is formed in a ladder shape, the state of the surface of the membrane 4 can be directly seen through the vertical portion 19, so that good workability can be obtained.

After the cooling material 5 and the membrane 4 are fixed to the inner peripheral surface of the tank body 1 by one sheet, the above operation is repeated, and the cooling material 5 and the membrane 5 are placed on the existing cooling material 5 and the membrane 4.
And the membrane 4 is attached.

After one row of the cooling material 5 and the membrane 4 are attached in the vertical direction as described above, the driving device 11 is driven to slightly move the upper driving trolley 12 along the upper ring rail 9, and the lifting table 16 is moved. The circumferential position of the tank body 1 is shifted by one membrane.

At this time, if the connecting member 14 is a rod,
The lower driven trolley 13 follows the upper drive trolley 12 due to the rigidity of the rod. When the connecting member 14 is a wire, an operator standing by at the bottom of the tank body 1 uses the tension adjuster 15 to relax the wire tension, and then drives the lower driven trolley 13 to the upper side. When the position of the lower driven trolley 13 is determined, the tension of the wire is increased again by using the tension adjuster 15 to stretch the wire.

Thereafter, the above steps are repeated so that the cooling material 5 and the membrane 4 are attached to the entire inner peripheral surface of the tank body 1.

As described above, the mounting of the membrane 4 can be semi-automated, and the number of required personnel can be reduced and the construction can be performed in a short time.

It should be noted that the present invention is not limited to the above-described embodiment, and various changes can be made without departing from the scope of the present invention.

[0039]

As described above, according to the membrane mounting apparatus of the present invention, the work of mounting the membrane can be semi-automated, the required number of personnel can be reduced, and the work can be performed in a short time. An excellent effect that it can be achieved.

[Brief description of the drawings]

FIG. 1 is an overall schematic side sectional view of an example of an embodiment of the present invention.

FIG. 2 is a partially enlarged view of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tank main body 9 Upper ring rail 10 Lower ring rail 12 Upper drive trolley 13 Lower driven trolley 14 Connecting member 16 Elevating table 21 Membrane support device 22 Membrane moving device 23 Automatic nut fastening device 24 Tightening tool moving device

Claims (2)

[Claims] An upper ring rail (9) provided concentrically on the upper part of the tank body (1), a lower ring rail (10) provided on the bottom of the tank body (1), and an upper ring rail ( 9), an upper drive trolley (12) attached to the lower ring rail (10), and an upper drive trolley (12) and a lower driven trolley (13). ), An elevator (16) provided to be able to move up and down along the connector (14), and an elevator (1).
6) A membrane mounting device, comprising: a membrane support device (21) mounted via a membrane moving device (22). 2. A tightening tool moving device (2) is mounted on an elevator (16).
2. The membrane mounting device according to claim 1, wherein an automatic nut fastening device (23) is mounted via 4).