JP2000272510A - Pipe transport carriage - Google Patents

Abstract

PROBLEM TO BE SOLVED: To set the height of pipe supporting as low as possible, by arranging a carriage in a front/rear end of the pipe, and providing clamping equipment, which can engage with a pipe end face, in the respective carriage so as to extend lower than an upper surface of the carriage. SOLUTION: Clamping equipment 11 which can engage with a pipe end face is provided in the front (or rear) part of a carriage 10 to extend in its forward (or rearward) direction. A fixed plate 11a of plate structure having a curved surface along the external periphery of a pipe is provided in the clamping equipment 11. This fixed plate 11a is constituted so as to horizontally extend along a bottom surface of the pipe in a position lower than an upper surface of the carriage 10 from the lower end of a support plate 11d extended downward from a base plate 11c of the carriage 10. In clamping of the pipe, first the pipe clamping equipment 11 is arranged in a pipe end part, the pipe is brought up, and its end part is loaded on the fixed plate 11a. Next a hydraulic cylinder device 12 is operated to lift a movable plate 11b, clamp the pipe end part between itself and the fixed plate 11a, so as to fix the pipe to the carriage 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tube carrier and, more particularly, to a tube carrier used when carrying fiber-reinforced plastic tubes into a primary lining.

[0002]

2. Description of the Related Art Conventionally, when a fiber reinforced plastic pipe 2 for secondary lining is carried into a shield tunnel or the like, FIG.
(A) As shown in (b), rail equipment 1r such as a rail is attached to the inside of the shield lining, and the transport vehicle 1 connected to a battery-type locomotive (not shown) is arranged so as to be able to travel. A pipe 2 is mounted on the carrier 1 and transported.

[0003]

However, when the pipe 2 is loaded and transported by the transport trolley 1 as described above, the transported pipe 2
A gap for attaching rail equipment 1r such as a rail and a gap S for allowing the carriage 1 to enter and exit are required between the pipe and the inner surface of the segment of the shield primary lining 3. There is a problem that the transport cannot be performed, and in some cases, the size of the pipe 2 for the secondary lining must be reduced.

In order to solve such a problem, as shown in FIGS. 6 (a) and 6 (b), a bogie 1b having a pipe supporting rod 1a longer than the pipe 2 is disposed at the front and rear ends of the pipe 2. A carrier 1 is supported on a stay 1c via a stay 1c to constitute a carrier 1 so that a large-diameter tube 2 can be carried. However, structurally, a tube supporting rod 1a is provided between the two carriers 1b and 1b. In some cases, the distance between the axles becomes long and it may be difficult to cope with some curved pipes.

Further, since the pipe 2 is hung and supported by the support rod 1a, the pipe 2 is liable to sway during transportation, and there is a problem that it is necessary to take measures to prevent the pipe 2 from contacting and colliding with the inner surface of the shield primary lining 3. In addition, there is a problem that the above-mentioned problem is further promoted because the carriage becomes unstable while the carrier 1 is traveling with a high center of gravity. SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned drawbacks and to easily and safely carry a pipe into an existing pipe.

[0006]

According to a first aspect of the present invention, there is provided a tube carrier having a gripper capable of engaging a tube end face of the tube with each of the trucks disposed at the front and rear ends of the tube. Extend below the upper surface of the cart. According to the above invention, since the pipes are supported by the grippers at positions lower than the top surfaces of the respective carts, it is possible to advance a large-diameter secondary lining pipe that has never existed with respect to the shield primary lining. .

According to a second aspect of the present invention, in the tube transporting cart, the gripper is rotatably attached to the truck via a pin. According to the present invention, the space between the pipe and the bogie can be freely rotated by the pin, so that the propulsion and carry-in along the curved pipe becomes easy.

[0008]

Next, an embodiment of the present invention will be described. FIG. 1 is a side view of a tube carrier according to an embodiment of the present invention, and FIG. 2 is a plan view. In FIG. 1, reference numeral 10 denotes a carriage, and in the case of the illustrated example, a carriage body 1 having a rectangular shape in plan view.
A pair of wheels 10b and 10b are pivotally supported before and after 0a, and can run along rail equipment 1r such as a rail, and have a structural strength that can withstand the weight of the pipe 2.

The front and rear ends of the carriage 10 are moved in the front-rear direction of the carriage 10 so that a gripper 11 engageable with the tube end face of the tube 2 can grip the tube 2 at a position lower than the upper surface of the carriage 10. Has been extended. Reference numeral 11a denotes a fixing piece of the gripper 11. The fixing piece 11a is a curved plate along the outer periphery of the tube 2 and extends along the bottom surface of the tube 2 at a position lower than the upper surface of the carriage 10 from the lower end of the support piece 11d extending below the substrate portion 11c fixed to the carriage 10. It is extended in the horizontal direction in such a curved state, and the whole is made of sturdy metal, for example, steel.

Reference numeral 11b denotes a movable piece, which is attached to the tip of a hydraulic cylinder device 12 attached to the substrate portion 11c.
The tube 2 can be strongly supported with the tube end of the tube 2 interposed between the fixing piece 11a. Next, a use state of the tube transport vehicle 10 will be described. First, as shown in FIGS. 3 (a) and 3 (b), the pipe gripper 11 is arranged at the pipe end of the pipe 2, the pipe 2 is lifted, and the end of the pipe 2 is placed on the fixing piece 11a.

At this time, the fixed piece 1 extending from the carriage 10
Since the height 1a is lower than the upper surface of the carriage 10, the lifting height of the tube 2 can be reduced, and the mounting of the tube on the fixing piece 11a can be facilitated. Next, the hydraulic cylinder device 12 is driven, the movable piece 11b is pushed down, and the end of the pipe 2 is held between the movable piece 11b and the fixed piece 11a.

As a result, the carriage 10 and the pipe 2 are fixed. When such a gripping operation is performed on the front and rear ends of the pipe 2, the pipe 2 is fixed to the front and rear carriages 10, 10, and the pipe 2 and the carriages 10, 10 are integrally moved on the rail equipment 1r. It becomes possible. Then, in this state, the shield primary lining 3 is advanced to the back of the shield primary lining 3 along the rail equipment 1a.

Therefore, since the pipe 2 is supported by the gripping tool 11 at a position lower than the upper surface of the carriage 10, a minimum gap can be provided between the lower surface of the pipe 2 and the inner surface of the shield primary lining.
It is possible to transport a large-diameter pipe for secondary lining that could not be handled by a conventional pipe transport cart. Further, in the above-described embodiment, as shown in FIG.
3 so that the pipe of the primary shield lining is bent, the pipe 2
In contrast, the bogie 10 can swing and rotate, and the responsiveness of propulsion and carry-in to the bent portion is improved.

Further, in each of the above-described embodiments, the case where the wheels 10b of the transport vehicle 10 are provided on two axes has been described. However, the present invention can be similarly carried out in the case of a single axis as shown on the right side of FIG. In this case, the same type of tube carrier 10 is attached to the front and rear ends of the tube 2 as shown in FIG. 4, and a uniaxial tube carrier 10 is provided at one end and the other end is provided at the other end as shown in FIG. May be used in combination with the wind of attaching the two-axis pipe carrier 10.

Although the hydraulic cylinder device 12 is shown as a driving device for the movable piece 11b, any device that drives the movable piece 11b so as to fix the pipe end to the fixed piece 11a may be used. An attachment device or a fastening device using a cam or a lever may be used. Further, as the above-described embodiment, the case where the truck 10 is run using the rail equipment 1r has been described.
0r wheel 10b is made of rubber tires or the like and rail equipment 1r
The same can be applied to the case where the sheet is conveyed without using.

[0016]

As described above, according to the tube carrier of the present invention, even if the height of the carrier is high, the carrier is divided into two parts so that the height from the outside of the pipe is lower than the upper surface of the carriage. The support height of the tube can be kept as low as possible even if the height of the bogie is high, and the tube with a large outside diameter can be carried forward to the primary lining of the shield. As a result, a reduction in the size of the secondary lining pipe can be avoided, and a new pipe can be laid without reducing the flow rate of the existing pipeline in the shield primary lining.

In addition, since the gap between the inner surface of the existing pipeline in the primary lining and the outer surface of the newly inserted pipe in the secondary lining is reduced, the amount of mortar to be filled therebetween can be reduced.
It also has economic effects such as economical construction. In addition,
When the gripping tool is made rotatable with respect to the bogie, the shield primary lining can be advanced along the pipeline even if the primary lining is curved, and the construction in the curved pipe portion becomes easy.

[Brief description of the drawings]

FIG. 1 is a side view of a tube carrier according to an embodiment of the present invention.

FIG. 2 is a plan view of the tube carrier according to the embodiment of the present invention.

FIGS. 3A and 3B are explanatory views showing a use state of the embodiment of the present invention, wherein FIG. 3A is a side sectional view, and FIG.

FIG. 4 is a side sectional view showing another configuration example of the embodiment of the present invention.

FIG. 5 is an explanatory view of a conventional example, (a) is a side sectional view,
(B) shows a longitudinal sectional view.

6A and 6B are explanatory views of another conventional example, in which FIG. 6A is a side sectional view and FIG. 6B is a longitudinal sectional view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Conventional trolley 1r Rail equipment, such as a rail 2 Pipe 3 Shield primary lining 10 trolley 10a trolley main body 10b Wheel 11 Gripping tool 11a Fixed piece 11c Substrate part 11d Support piece 11b Movable piece 12 Hydraulic cylinder device

Claims (2)

[Claims] 1. A tube transport trolley comprising a trolley disposed at the front and rear ends of a pipe, and a gripper capable of engaging with a pipe end surface of the pipe extending lower than the upper surface of the trolley. 2. The tube transport trolley according to claim 1, wherein the gripper is rotatably attached to the trolley via a pin.