JPH11255117A - Pipe carrying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To smoothly carry a pipe by providing a first truck for supporting one end side of the pipe and a second truck for supporting the other end side of the tube, and connecting the first truck to the second truck in such a manner as to be mutually rotatable. SOLUTION: This pipe carrying device 11 include a first truck 12 and a second truck 13 mutually connected through a connecting rod 14. The trucks 12, 13 have wheels 15, and they are constituted in such a manner as to be capable of traveling on rails 17 laid in a tunnel as a carrying route. In the trucks 12, 13, a frame 18 is constituted by integrating wheel support parts 19 to a connecting part 20 for mutually the connecting parts 19. According to this, a pipe can be safely carried without working an unreasonable side pressure on the trucks.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe conveying apparatus, and more particularly to a pipe conveying apparatus suitable for conveying a pipe for laying a pipe in a tunnel.

[0002]

2. Description of the Related Art As a pipe conveying apparatus of this kind, there is known a pipe conveying apparatus in which a pipe is supported in a horizontal direction by a four-wheeled truck that can run on a rail laid in a tunnel. .

[0003]

However, as described above,
When pipes are transported using a wheeled cart, the side pressure on the wheels increases when the rail as the transport path is curved, and in extreme cases, derailment may occur. is there.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to solve such a problem and to make it possible to smoothly transfer a pipe without applying a large lateral pressure to a transfer device even in a curved portion of a transfer path. .

[0005]

In order to achieve this object, the present invention relates to a transport apparatus for supporting and transporting a pipe in a horizontal direction, comprising: a first carriage supporting one end of the pipe; A second carriage for supporting the other end of the tube;
The first truck and the second truck are connected to each other so as to be freely rotatable.

[0006] With this configuration, the first truck and the second truck are rotatably connected to each other. Therefore, even if the first truck and the second truck are approaching a curve when the pipe is conveyed, the first truck and the second truck are connected to each other.
Is connected in a state where it is bent along the curve, and in this state, the pipes can be supported and transported.Therefore, the pipes can be stably transported without exerting excessive lateral pressure on each of the carts. Will be possible.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIGS. 1 to 3, reference numeral 11 denotes a pipe conveying device according to the present invention, in which a first truck 12 and a second truck 13 are connected to each other via a connecting rod 14. I have. Each of the carts 12 and 13 has four wheels 1
5 so as to be able to travel on rails 17 laid in a tunnel 16 as a transport route.

In each of the carts 12, 13, reference numeral 18 denotes a frame. The frame 18 is formed by a pair of wheel supporting portions 19, 19 formed in a U-shape in plan view, and these wheel supporting portions 19, 19 are connected to each other. It has a configuration in which the connecting portions 20 that connect to each other are integrated. Specifically, a pair of wheels 15, 15 is rotatably supported on each wheel supporting portion 19 by utilizing the U-shaped flange portion 21. 22 is an axle. The connecting portion 20 is provided between the U-shaped web portions 23 of the pair of wheel supporting portions 19, 19.

Brackets 25 are provided on the web portion 23 on the rear end side of the first carriage 12 and the web portion 23 on the front end side of the second carriage 13, respectively. The brackets 25, 25 and one and the other ends 26, 26 of the connecting rod 14 are connected to vertical pins 27, 2.
7, are connected to each other so as to be pivotable in a horizontal plane. Thus, the first truck 12 and the second truck 13 are configured to be rotatably connected to each other. If a play in the vertical direction is provided between the brackets 25, 25 and one and the other ends 26, 26 of the connecting rod 14, the first bogie 12 and the second bogie 13 are connected. Can be bent slightly vertically with respect to each other.

[0010] A towed bracket 28 is provided at the front end of the first carriage 12, and a vertical towed hole 29 formed in the towed bracket 28 is used to carry the transport device 11, that is, the connecting rod 14. It is configured to be able to tow a pair of trolleys 12 and 13 connected to each other.

A flat portion 31 is formed at the upper end of the connecting portion 20 of each of the bogies 12 and 13.
Each of the tube support blocks 32 is supported by utilizing the above. The tube support block 32 has a main body 33 disposed in a horizontal direction orthogonal to the traveling direction A of the carriages 12 and 13.
And supported by the flat portion 31. A pair of mounting plates 34 are provided on one side and the other side of the main body 33, respectively, in the traveling direction of the carts 12 and 13. By fixing these mounting plates 34 to the upper surface of the web portion 23 of the wheel supporting portion 19 with bolts 35, the main body portion 33 is connected to the connecting portion 2 as described above.
It is positioned and fixed at a predetermined position in a state where it is supported by the flat part 31 of the zero.

The carriages 12, 1 in the tube support block 32
3 at both ends in the horizontal direction orthogonal to the traveling direction A,
Each is provided with a cylinder device 36. 37 is the casing. Reference numeral 38 denotes the working rod, and a tube support surface 39 is formed at the tip. Therefore, the cylinder devices 36 are arranged at four positions in the transfer device 11, and these cylinder devices 3
6 allows the pipe P to be supported horizontally at four points.

The working rod 38 of each cylinder device 36 is
The tube P is configured to be able to move back and forth in the radial direction of the tube P toward the center C of the tube P to be supported. That is, the carts 12 and 13
Each time the pipe P is supported in the direction of a line 41 passing through the center C of the pipe P, the pipe P is configured to be supported in a stable state.

As shown in FIG. 3, when another type of pipe P1 having a different diameter is to be supported, the position of the center C1 of the pipe P1 changes according to the type of the pipe. The position of the passing line 41 also changes. Therefore, as indicated by phantom lines in FIG.
By preparing a plurality of types of pipe support blocks 32 having different positions of the cylinder device 36 along a horizontal direction orthogonal to the traveling direction A of the third line 3, a line passing through the center of any type of pipe having a different diameter is prepared. Can be supported in a stable state along the direction of.

The position of the center of the pipes P, P1 on one carriage 12 and the center of the pipes P, P1 on the other carriage 13 are adjusted by adjusting the amount of retreat of the action rod 38 in the cylinder device 36. Can be adjusted. That is, the pipes P and P1 can be supported by the pair of carriages 12 and 13 in a centered state.

If another type of tube with a different length is to be supported, another connecting rod 14 with a different length is correspondingly provided.
Is used to change the distance between the carts 12 and 13. That is, by preparing a plurality of types of connecting rods 14 having different lengths in this way, any type of pipe having a different length can be supported at an appropriate position in the length direction.

When the pipe P is transported in the tunnel 16, a connecting rod 14 of a type corresponding to the length of the pipe P is used.
The first bogie 12 and the second bogie 13 are connected to each other by using a tube support block 3 corresponding to the diameter of the pipe P.
2 is placed on each of the carts 12 and 13 and fixed with bolts 35.
In this state, the pipe P is placed, and the retracting amount of the action rod 38 of each cylinder device 36 is adjusted to support the pipe P in a centered state.

Then, in this state, the towed bracket 2
The transport device 11 is moved by using a towed body, a chain body or other means using the towed hole 29 of FIG. At this time, since the first truck 12 and the second truck 13 are rotatably connected via the connecting rod 14, the bogies 12 and 13 turn each other following the curve in the curved portion.
Therefore, in the curved portion, the transfer device 11
Can be supported and transported in a bent state, so that excessive lateral pressure does not act on each of the carts 12 and 13, and the pipe P can be transported stably.

In the above description, the first bogie 12 and the second bogie 13 are connected via the connecting rod 14, but the first bogie 12 and the second bogie 13 are directly connected to each other. A configuration in which they are connected to each other in a freely rotatable manner may be used.

When the carts 12 and 13 are connected in a bent state as described above, the pipes P are supported at four points by all four cylinder devices 36 strictly different from the straight state. However, in practice, the curve is loose enough to allow passage of a pipe P of a certain length, and no particular problem occurs. If a problem arises, the working rod 38 in the cylinder device 36
By re-adjusting the retracting amount of the pipe P, the centering of the pipe P may be redone in accordance with the curve.

[0021]

As described above, according to the present invention, a first bogie supporting one end of a pipe and a second bogie supporting the other end of the pipe are provided. And the second bogie are pivotally connected to each other, so that even if the pipe comes into a curve when the pipe is conveyed, the first bogie and the second bogie are connected in a bent state along the curve, and the state is established. Since the pipes can be supported and transported, the pipes can be transported stably without excessive lateral pressure acting on each truck.

[Brief description of the drawings]

FIG. 1 is a front view of a tube conveying device according to an embodiment of the present invention.

FIG. 2 is a plan view of the same device.

FIG. 3 is a diagram showing a side surface of the device together with a tunnel and a rail.

[Explanation of symbols]

 12 first bogie 13 second bogie 14 connecting rod 25 bracket 26 pin 32 tube support block P, P1 tube

Claims (1)

[Claims] 1. A transport device for supporting and transporting a pipe in a horizontal direction, comprising a first bogie supporting one end of the pipe, and a second bogie supporting the other end of the pipe. Wherein the first carriage and the second carriage are rotatably connected to each other.