JPH1050528A - Tank transfer apparatus for static device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tank transfer apparatus for a static device which eliminates operation with a crane, and reduces the welding operation time. SOLUTION: A tank transfer apparatus for static device is provided with a tank for static device which is made by working a metallic plate into a cylinder, a transporting carriage 2 which carries the tank for static device, a counter 6 with a free bearing which is rotatable in all directions and turning rolls 14 and 16 which are placed at both ends of the counter 6 on the carriage 2 and opposite to each other. Since the apparatus can transfer the tank for static device on the turning rolls 14 and 16 in the direction of the length and can directly transfer it from the roller complement to the transporting carriage 2, conventional operation with a crane can be eliminated, the working time can be reduced and the productivity can be improved accordingly.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stationary equipment tank transport device for transporting a cylindrical stationary equipment tank.

[0002]

2. Description of the Related Art A conventional tank transport device for stationary equipment for transporting stationary equipment such as a gas insulated switchgear will be described with reference to FIG. As shown in FIG.
The tank 5 is manufactured by forming a plate-shaped metal material into a cylindrical shape by a bending machine 4 and welding a straight portion of a joint portion thereof by a welding device 1 for longitudinal welding. Processing machine 4
When transporting the tank 5 from the to the welding device 1, the cylindrical tank 5 formed by the processing machine 4 is taken out, the seam of the tank 5 is directed upward, and the tank 5 is manually rolled on the roller controller 3, and the tank traveling cart with the lifting device is provided. It is moved onto the gantry 6 placed on the gantry 2. The gantry 6 is provided with a large number of free bears (not shown) rotatable in all directions.

[0003] Next, the tank 5 is raised by the lifting device of the traveling vehicle 2, and the traveling vehicle 2 is moved in order to insert a joint portion of the tank 5 into a gap between the upper frame 11 and the lower frame 12 of the welding device 1. Move on rail 7. After inserting the seam portion of the tank 5, the tank 5 is manually moved on the free carrier of the gantry 6 to align the running line of the welding torch 13 installed on the welding torch running carriage 8 with the seam of the tank 5, and the displacement is adjusted. Fix it. After this correction is completed, the seam portion of the tank 5 is fixed by a large number of holding claws 9 attached to the lower surface of the upper frame 11 and the backing metal fittings 10 attached to the upper surface of the lower frame 12, and the welding torch traveling carriage 9 is moved. Run and weld the joint,
A cylindrical tank is formed.

[0004]

As described above, in the conventional tank manufacturing technology of the gas insulated switchgear, the operator manually corrects the positional deviation between the joint portion of the tank and the welding torch travel line. However, the tank itself was large and very heavy, which put a heavy burden on workers. For example, fine misalignment correction work to accurately align the seam of the tank with the welding torch travel line is performed manually, and the tank itself is large and very heavy, requiring a considerable amount of work time and very difficult Work.

[0005] Usually, in the welding work of a cylindrical tank,
In order to rotate the tank in the circumferential direction, the tank 5 is placed on a turning roll 22 as shown in FIG. 5, and the turning of the turning roll 22 can correct minute displacement of the tank 5. It is virtually impossible to manually move the tank 5 over the rollers of the turning roll 22. Therefore, turning roll 2
In order to mount the tank 5 on the tank 2, the tank 5 must be lifted and mounted by a crane or the like, and a lumbering operation occurs, and there is a problem in terms of safety and extra work time caused by lifting a heavy object. .

The present invention has been made in view of the above circumstances, and has as its object to transport a stationary equipment tank onto a turning roll without using a crane, and to use the turning roll to position the joint of the stationary equipment tank. An object of the present invention is to provide a tank transport device for stationary equipment in which deviation correction is mechanized.

[0007]

In order to achieve the above-mentioned object, a tank transporting apparatus for stationary equipment according to claim 1 of the present invention comprises:
A stationary equipment tank in which a plate-shaped metal material is machined into a cylindrical shape, a traveling carriage for transporting the stationary equipment tank, and a gantry with a free bearer mounted on the traveling carriage and rotatable in all directions. And turning rolls disposed on the traveling carriage at both ends of the mount so as to face each other, and the stationary device tank can be transported in the longitudinal direction on the turning rolls.

According to a second aspect of the present invention, in the tank transporting apparatus for a stationary device according to the first aspect, the seam of the cylindrical tank and the longitudinal welding device are welded by turning rolls disposed on the traveling carriage so as to face each other. The present invention is characterized in that a position shift correcting function for correcting a position shift with the torch travel line is provided.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an embodiment of the present invention.
FIG. 2 is a side view of FIG. 1, and the same parts as those of the conventional example described above are denoted by the same reference numerals.

In FIG. 1, reference numeral 1 denotes a welding device. The welding device 1 welds a joint portion of a cylindrical tank 5 transported by a traveling carriage 2 traveling on a traveling rail 7.
A gantry 6 is attached to the traveling trolley 2 via a lifting device 21, and a free bear 20 rotatable in all directions is arranged on the gantry 6.

[0011] The cylindrical tank 5 includes a holding claw 9 and a backing fitting 1.
After being fixed at a predetermined position by the upper frame 11, the upper frame 11, and the lower frame 12, the joint portion is welded by the welding torch 13 of the welding torch traveling vehicle 8. Also,
A driven-side turning roll 14 and a driving-side turning roll 16 are arranged on the traveling carriage 2 at both ends of the gantry 6, and these turning rolls 14 and 16 are driven by a turning roll moving motor 15. Reference numeral 19 denotes a screw shaft which is formed by turning the screw from left to right from the center of the shaft.
6 and the distance between the driven side turning roll 14 can be adjusted.
Reference numeral 17 denotes a roller rotation motor, and reference numeral 18 denotes a turning roll traveling rail.

Next, the operation of this embodiment will be described.
First, a cylindrical tank 5 formed into a cylindrical shape from a plate-like metal material by a bending machine (not shown) is conveyed from a roller controller (not shown) onto the turning rolls 14 and 16 on the traveling vehicle 2. Drives the turning roll moving motor 15. That is, when the screw shaft 19 is rotated by the driving of the motor 15, the driving-side turning roll 16 and the driven-side turning roll 14 are separated from each other to the left and right, so that the interval between the driving-side turning roll 16 and the driven-side turning roll 14 is a cylindrical tank. 5 can be adjusted so as not to hinder the conveyance.

Next, the cylindrical tank 5 is moved from the roller controller to the gantry 6 on which the free bear 20 is rotatable in all directions. After the tank 5 is moved onto the gantry 6, the turning roll moving motor 15 is driven to move the driving-side turning roll 16 and the driven-side turning roll 14 in the approaching direction, so that the cylindrical tank 5 is lifted from the gantry 6, The cylindrical tank 5 is transported onto the turning rolls 14 and 16. Various cylindrical tanks 5 having different diameters by a lifting device 21 attached to the traveling vehicle 2
It is possible to adjust the height between the traveling vehicle 2 and the welding portion of the welding device 1 in accordance with the distance.

As described above, according to the present tank transfer device, the cylindrical tank 5 can be transferred onto the turning rolls 16 and 14 from the near side of the drawing in the direction of the drawing without using a crane as in the conventional case.

Next, the tank 5 mounted on the traveling vehicle 2
Is the upper frame 11 attached to the welding device 1.
In order to insert the joint 26 of the cylindrical tank 5 into the gap between the lower tank 12 and the lower frame 12, the cylindrical tank 5 is raised by the elevating device 21 of the traveling vehicle 2, and the traveling vehicle 2 is moved on the traveling rail 7. When the cylindrical tank 5 is inserted into the gap, as shown in FIG.
When the welding torch travel line 23 is displaced, a brake is applied to the driving side turning roll 24b and fixed,
When the driving-side turning roll 24a is rotated in the direction of arrow C shown in FIG. 4, the left end of the cylindrical tank can be shifted in the direction of arrow A and the right end of the cylindrical tank can be shifted in the direction of arrow B as shown in FIG. As shown in FIG.
The cylindrical tank 5 is moved by the horizontal component force Fx of the tangential force F acting between the cylindrical tank 5 and the roller of the driving-side turning roll 24a, and the displacement is corrected. As described above, according to the present embodiment, the displacement correction work conventionally performed manually can be mechanized, can be performed efficiently in a short time, and the burden on the operator can be largely reduced.

[0016]

As described above, according to the first aspect of the present invention,
According to the second aspect of the present invention, the tank for stationary equipment can be directly transported from the roller controller to the transport trolley, so that the conventional crane operation can be eliminated, the operation time can be reduced, and the production efficiency can be improved. . In addition, since the tank for stationary equipment is very heavy, it has been difficult to correct delicate misalignment in the past.However, this device can easily perform accurate misalignment correction, improving the quality of the welded part and burdening the operator. The work time can be greatly reduced as well as the reduction and improvement of safety.

[Brief description of the drawings]

FIG. 1 is a front view of an embodiment of the present invention.

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a plan view showing adjustment of a tank joint part for stationary equipment and a welding torch traveling line in FIG. 1;

FIG. 4 is a perspective view of the left side of FIG. 3;

FIG. 5 is a diagram showing how to use a conventional turning roll.

FIG. 6 is a view showing a conventional method of transporting a tank for stationary equipment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Welding apparatus, 2 ... Truck, 3 ... Corrocon, 4 ... Bending machine, 5 ... Cylindrical tank, 6 ... Stand, 7 ... Traveling rail, 8 ... Welding torch traveling trolley, 9 ... Holding claw, 10 ... Back Metal fittings, 11: upper frame, 12: lower frame, 1
3 ... welding torch, 14 ... driven side turning roll, 15
... Mounting roll moving motor, 16 ... Drive-side turning roll, 17 ... Roller rotating motor, 18 ... Turning roll running rail, 19 ... Screw shaft, 20 ... Free bear, 21 ... Elevating device, 22 ... Turning roll, 23 ...
Welding torch running line, 24a, 24b: driving side turning roll, 25a, 25b: driven side turning roll, 26: tank seam.

Claims (2)

[Claims] 1. A stationary equipment tank formed by processing a plate-shaped metal material into a cylindrical shape, a traveling vehicle for transporting the stationary equipment tank, and mounted on the traveling vehicle and rotatable in all directions. A stand with a free bear, and a turning roll disposed opposite to the traveling carriage at both ends of the stand, wherein the stationary device tank can be transported in the longitudinal direction on the turning roll. Tank transfer equipment for stationary equipment. 2. A tank conveying device for a stationary device according to claim 1, wherein a position of a seam of said cylindrical tank and a welding torch traveling line of a longitudinal welding device by a turning roll arranged opposite to said traveling carriage. A tank transfer device for stationary equipment, comprising a position shift correcting function for correcting a shift.