JPS606703Y2 - Transportation/installation truck for penstocks - Google Patents

Description

[Detailed Description of the Invention] The present invention is used to install and assemble penstocks on-site, and relates to a transportation/installation cart for transporting and aligning penstocks.

Conventionally, when constructing this type of penstock, the penstock was fastened to a trolley using ropes, transported to the installation site, the ropes were untied, the penstock was lowered from the trolley, and then a jack, etc. prepared in advance was used. I was doing alignment with the existing penstock.

However, with the above-mentioned conventional trolley, fixing and separating the penstock and the trolley is extremely complicated, and the centering work is a separate work from the transportation work, so it takes time to set up before starting the centering work, and the precision is poor. There was also the problem that it was bad.

The present invention solves such problems and provides a transportation/installation trolley that has diversified functions and allows installation work to be carried out smoothly and efficiently. A movable bogie frame is formed, a stopper is provided on the front side of the bogie frame that can engage with a welded plate to be welded to the penstock for temporary assembly, and the penstock is placed across the notch. Supporting centering jacks are installed on both sides of the upper surface of the central part of the bogie frame, and a unit hoisting winch for towing other equipment such as work units is attached to the front of the bogie frame, and a spider removal device that removes the spider for maintaining the perfect circle of the penstock. This is related to a cart for transporting and installing a penstock, which is equipped with a notch in the center of the cart frame, so that a support can be placed in the notch and can be used as a support while the penstock is placed. The support for the penstock can be relocated, and the penstock can be easily fixed to the bogie via a stopper using a welded plate welded to the penstock during temporary assembly, and the penstock can be supported on the bogie side. A jack is provided as a stand, so centering work can be performed immediately after transportation, and the trolley has the function of towing work units equipped with equipment necessary for assembly, such as welding machines, and removing the spider. Therefore, the assembly work can be done consistently.

Therefore, work efficiency is improved and installation accuracy is also improved.

Embodiments of the present invention will be described below based on the drawings.

1 is a road, 2 is a transportation/installation truck, 3 is a work unit, 4
is a finishing unit, and rails 5 on which installation carts 2 run are laid in the road 1.

The installation trolley 2 has wheels 6 that roll on rails 5 pivotally mounted on its lower surface, and a jack that supports the penstock B and aligns it during connection on the upper surface of the trolley frame 7, which has a concave shape with a notch in the center in the running direction. 9 are installed at the required places, and a unit hoisting winch 10 for connecting and towing the work unit 3 to the front part of the bogie frame 7 (with the population side of Ryuun 1 facing forward) and a spider fitted to maintain the perfect circle of the penstock 8. 11, and a stopper 14 for fixing the penstock 8 via a welding plate 13, which will be described later, is provided on the side of the truck frame 7. The installation truck 2 itself is not shown. It can be moved by a drive device.

The working unit 3 that can freely travel inside the penstock 8 includes an arm 15 that adjusts the misalignment, a copy welding machine 16 that welds the joint,
The unit hoisting winch 10 is connected to the unit hoisting winch 10 via a coupler 18.

Further, the working unit 3 and the rear finishing unit 4 are connected to a winch 19 attached to the finishing unit 4.

The finishing unit 4 further includes a coating device 20 and the like, and has the function of performing final work such as finishing coating of welded parts.

Next, the penstock 8 is transported and transported by the installation cart 2 according to the present invention.
Describe the installation work.

The penstock 8 to be buried will be temporarily assembled before being brought in so that it can be reliably aligned and held after alignment on site.

In the temporary assembly, after the penstock pipes 8 are butted and the centering is completed, a required number of welding plates 13 spanning the joint are welded to the outer periphery of the joint of the penstock pipe 8.

The joining plate 22, in which a pilot hole 21 for a taper pin is appropriately bored, is aligned with the welding plate 13, and a taper pin insertion hole is bored using the pilot hole 21 as a guide.

After confirming that the connection can be made using the taper pin, the taper pin is removed and the joining plate 22 is removed.

Thereafter, the welded plates 13 are separated, and the temporary assembly of the penstock 8 is completed.

A spider 11 is fitted in advance into the penstock 8 to prevent deformation due to its own weight.

Since the welding plate 13 is welded to the penstock 8 which has been temporarily assembled, the stopper 14 is engaged with the welding plate, the penstock 8 is fixed to the installation truck 2, and the installation truck 2 is moved inside the road 1. Transported to the joining site.

Next, the unit hoisting winch 10 of the installation cart 2 and the work unit 3, which has already been inserted and fixed, are connected by the coupler 18, and the unit hoisting winch 10 moves the work unit 3 forward to the work site.

After fixing the working unit 3 by an appropriate means, the engagement between the penstock iron pipe 8 and the stopper 14 is released, and the centering of the iron pipe 8 to be joined and the iron pipe 8 to be joined is performed using the jack 9. The misalignment is adjusted using the arm 15 to ensure complete alignment. The joint plate 22 is properly positioned.
align with the joint plate 13, drive the taper pin, and welder 1
6, final work such as inspection by the welding inspection device 17 and painting by the finishing unit 4 is performed.

The penstock 8, which has been welded, is positioned by the support 23.
Posture is maintained.

At this time, the support 23 is installed at a position where it does not interfere with the notch of the truck frame 7 and the truck frame 7.

The jack 9 is operated to transfer the support of the penstock 8 to the support 23, and the installation cart 2 is pulled up in order to carry in a new penstock 8.

When the installation cart 2 is pulled up, the spider 11 is removed by the spider removal device 12 and carried to the ground.

According to the present invention constructed as described above, the installation cart and the penstock can be fixed extremely easily without the need for the troublesome tightening work with ropes as in the past, and the centering of the joined iron pipe and the iron pipe to be joined can be achieved. The frame is formed into a concave shape so that the support can be installed in a positioned state without causing any misalignment, and the spider can be removed and carried out efficiently, and various other excellent effects are exhibited.

[Brief explanation of drawings]

Fig. 1 is a schematic side cross-sectional view showing the case where the installation cart according to the present invention is connected to other devices, Fig. 2 is a plan view of the cart, and Fig. 3
The figure is a partial view showing the temporary assembly of the penstock. 2 is an installation cart, 3 is a work unit, 4 is a finishing unit,
7 is the truck frame, 8 is the penstock, 9 is the jack, 10
11 is a unit hoisting winch, 11 is a spider, 12 is a spider removal device, 14 is a stock, and 23 is a support.

Claims (1)

[Scope of utility model registration request] The bogie frame is shaped like a concave shape with a notch in the center in the running direction and can run freely, and a stopper is provided on the front side of the bogie frame that can engage with a welded plate welded to the penstock for temporary assembly. , centering jacks for supporting the penstock placed across the notch are provided on both sides of the upper surface of the central part of the bogie frame, and a unit hoisting winch and water pressure unit for towing other equipment such as work units are installed at the front of the bogie frame. A cart for transporting and installing a penstock, characterized by being equipped with a spider removal device for removing a spider for maintaining the perfect circle of the iron pipe.