JPH10316365A - Installation structure for heavy object conveying crane in pit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase crane capability and facilitate installation work by fixing rails below a segment in a pit, and travelably arranging a portal crane on the rails. SOLUTION: This crane device 1 is provided with multiple brackets 13, 14 serving as rail support means fitted to a segment 12 along the longitudinal direction in a pit, rails 15, 15 fixed on the brackets 13, 14, and a portal crane 16 travelably arranged on the rails 15, 15. The crane device 1 uses the large portal crane 16 and can easily convey a heavy object such as a ductile pipe 11. The brackets 13, 14 are fitted below the segment 12, the rails 15, 15 are fixed to the brackets 13, 14, no high-lift work is required for the installation work, and the heavy object can be conveyed at a low position. A relatively light object can be easily conveyed by using an auxiliary crane.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an installation structure of a crane for transporting heavy objects in a mine.

[0002]

2. Description of the Related Art For example, when a ductile pipe is installed in a shield tunnel, it is necessary to transport the ductile pipe from the entrance of the shield tunnel to the installation location. Therefore, conventionally, it is common to install a crane movable in the longitudinal direction of the shield tunnel, or use a battery locomotive with a crane. In the former case, a rail was conventionally mounted on the ceiling of the segment, and a crane was mounted on this rail so that it could travel.

[0003]

However, when a crane is mounted on the ceiling of a segment, the work efficiency is deteriorated because the work is performed at a high place, and a heavy object is often transported at a high position. was there. On the other hand, when a battery locomotive with a crane is used, the lifting load is as small as, for example, about 0.4 ton, and therefore, there is a problem that the load cannot be conveyed without some means such as dividing a heavy load.

[0004] An object of the present invention is to solve such a problem, and an object of the present invention is to provide an installation structure of a crane for transporting heavy objects in a mine where the crane has a large capacity and installation work is easy.

[0005]

SUMMARY OF THE INVENTION The present invention is an installation structure of a crane for transporting heavy objects in a mine, and is configured as follows to solve the above-mentioned technical problem. That is, the present invention provides a structure for installing a crane for transporting heavy objects in a longitudinal direction of a mine, wherein a plurality of rail support means are attached along a longitudinal direction of the mine below the segments of the mine, The rail is fixed to the rail support means, and a portal crane is arranged on the rail so as to be able to travel freely.

In the installation structure of the crane for transporting heavy objects in the mine, the lifting load can be increased because the portal crane is used. Also, since the rail support means is attached to the lower side of the segment, work at a high place is not required.

[0007] The portal crane may be provided with an auxiliary crane. In this case, a relatively light one can be transported by the auxiliary crane.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an embodiment of an installation structure of a crane for transporting heavy objects in a mine according to the present invention will be described in detail with reference to the drawings.

FIG. 1 shows a crane apparatus 1 to which an installation structure of a crane for transporting heavy objects in a mine according to the present invention is applied. The crane device 1 is installed to transport a heavy object such as the ductile tube 11 in the shield tunnel in the longitudinal direction of the shield tunnel. The crane apparatus 1 includes a plurality of brackets 13 and 14 as rail support means attached to the segment 12 along the longitudinal direction, rails 15 and 15 fixed to the upper surfaces of the brackets 13 and 14, and rails 15 and 15 And a portal crane 16 which is arranged to be able to run freely.

The segment 12 is made of RC concrete, and has a plurality of segment bolts 17 embedded at equal intervals all around its inner surface. The brackets 13 and 14 are attached to appropriate positions below the center of the segment 12 using segment bolts 17. The brackets 13 and 14 have a substantially right-angled triangular shape, and are mounted with two right-angled sides being horizontal or vertical, respectively. The rails 15, 15 on the brackets 13, 14 are fixed at a predetermined distance from each other. When the segment 12 is made of steel, the brackets 13 and 14 can be attached by welding.

The frame of the portal crane 16 has two substantially U-shaped legs 19 arranged in front and rear, and two legs 19 in front and rear.
Upper girders 20 and 20 connecting the upper corners of 9 and 19, cross girders 21 connecting the centers of the upper girders 20 and 20, and the front and rear legs 1
9 and 19 are connected to lower girders 22 and 22 connecting the lower sides.

Below the horizontal girder 21, as shown in FIG.
A rail 23 made of a mold steel is fixed. A main crane 25 is movably mounted on the rail 23 laterally by a predetermined distance L (FIG. 1). The main crane 25 has a capacity capable of lifting the ductile tube 11, for example, a lifting load of 1 ton. The main crane 25 is provided with a hook 26 that can move up and down. Then, the wire 27 is wound around the ductile tube 11 and hung by the hook 26.

Each of the lower beams 21 is provided with two wheels 28 at appropriate intervals. These wheels 2
8 runs on the upper surfaces of the rails 15, 15. In addition, each of the lower girders 21 and 21 has a portal crane 16.
In order to prevent the rails 15 from falling off, guide rollers 29, 29 are attached at positions sandwiching the rails 15, 15.

A wheel drive motor 30 is mounted on the upper surface of one of the lower girders 21. The front wheel 28 is driven by the motor 30 via a chain 31 so that
A portal crane 16 runs on rails 15, 15. Further, a cable reel 32 is attached to the lower girder 21, from which power is supplied to the main crane 25, the wheel driving motor 30, and an auxiliary crane 34 described below.

An auxiliary crane 34 is attached to each of the legs 19,19. As the auxiliary crane 34, for example, a lifting load of about 100 kg is used, and as shown in FIG.
Each auxiliary crane 34 projects forward or backward from the leg 19, and is 90 ° from a position substantially parallel to the leg 19, respectively.
Can be turned up to the range. This auxiliary crane 34
Even when the main crane 25 is used, relatively lightweight objects can be handled.

Further, in this embodiment, as shown in FIG. 2, a rail 15 having a fixed length and a bracket 1 for supporting the same are provided.
3 and 14 are defined as one block, and a plurality of blocks are connected and used. Then, the unnecessary blocks are sequentially disassembled from the rear block and transported forward, and this is added to the first block for use. In order to transport the disassembled brackets 13 and 14 and the rail 15, a hand cart 33 is disposed between the rails 15 and 15.

As described above, when the rear block is disassembled and transported forward, and is re-installed, first, as shown in FIG. The rail 15 is removed, and is transported to the portal crane 16 by the hand cart 33.

Next, the auxiliary crane 3 of the portal crane 16
At 4, the block on the hand cart 33 is lifted, and the portal crane 16 is driven forward by a predetermined distance. And
The block lifted by the auxiliary crane 34 is loaded on a carrier 36 connected to a battery locomotive 35. The battery locomotive 35 and the transport vehicle 36 are used for transport in a mine, and run on rails 37 laid in a shield tunnel.

Next, the battery locomotive 35 is run to convey the block on the carriage 36 to the end of the rail 15,
Subsequently, this block is set in front of the front end block and connected. This completes the transfer of the brackets 13 and 14 and the rail 15 for one or more blocks. Similarly, by sequentially moving the block from the rear next to the front, the portal crane 16 can be moved over the entire length of the shield tunnel, so that heavy objects such as the ductile tube 11 can be easily moved over a long distance. Can be transported.

As described above, since the crane apparatus 1 uses the large portal crane 16, the ductile pipe 1
Heavy objects such as 1 can be easily transported. Also,
Since the brackets 13 and 14 are attached to the lower side of the segment 12 and the rails 15 are fixed to the brackets 13 and 14, work for installing at high places is not required, and heavy objects are transported at a low position. be able to.

Further, by using the auxiliary crane 34, the bracket 1 can be used even when the main crane 25 is in use.
Since it is easy to convey relatively lightweight objects such as the rails 3 and 14 and the rails 15, the handleability is improved.

[0022]

As described above, according to the installation structure of the crane for transporting heavy objects in the mine according to the present invention, since the portal crane is used, the lifting load can be increased and the transportation of heavy objects becomes easy. In addition, since the rail support means is attached to the lower side of the segment and the rail is fixed to the rail support means, work at height is not required, installation work becomes easy, and a heavy object can be transported at a low position.

When an auxiliary crane is provided on a portal crane, a relatively lightweight auxiliary crane can be used even when the main crane is used, so that the handling efficiency is improved.

[Brief description of the drawings]

FIG. 1 is a front view showing a crane device to which an installation structure of a crane for transporting heavy objects in a mine according to the present invention is applied.

FIG. 2 is a side view showing a crane apparatus to which the installation structure of the crane for transferring heavy objects in a mine according to the present invention is applied.

FIG. 3 is a plan view of a crane apparatus to which the installation structure of the crane for transporting heavy objects in a mine according to the present invention is applied.

FIG. 4 is a diagram showing a method of transferring rails of a crane device to which the installation structure of a crane for transferring heavy objects in a mine according to the present invention is applied.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Crane apparatus 12 Segment 13, 14 Bracket (rail support means) 15 Rail 16 Portal crane 34 Auxiliary crane

Claims (2)

[Claims] 1. A structure for installing a crane for transporting heavy objects in a longitudinal direction of a mine, wherein a plurality of rail support means are attached to a lower side of the segment of the mine along the longitudinal direction of the mine. An installation structure for a crane for transporting heavy objects in a mine, wherein a rail is fixed to a support means, and a portal crane is movably arranged on the rail. 2. The crane installation structure according to claim 1, wherein an auxiliary crane is provided on the portal crane.