JP7034692B2 - Cart for piping laying - Google Patents

Description

The present invention relates to a trolley for laying pipes, and more particularly to a trolley for laying pipes used for laying pipes on the ceiling of a mine or the like.

Piping for supplying electric power, cooling water, etc. is laid in the mine tunnel for underground work or environmental improvement. Since the main purpose of the tunnel is to pass underground work vehicles, it is narrow unlike a general road tunnel, and there is no room for width in particular. Further, the above-mentioned piping is generally laid on the ceiling portion in the tunnel, which means that the space in the ceiling is required for strength in the cross-sectional shape of the tunnel based on the width of the underground work vehicle. This is because there is a margin. Therefore, not only piping but also ducts for supplying cold air are usually laid on the ceiling of the tunnel.

The length of each pipe laid on the ceiling of the tunnel is about 5m to 6m, and steel pipes with different inner diameters are used depending on the number of electrical wiring and the required flow rate of cooling water. Ru. For example, the inner diameter of the pipe has nominal diameters of about 150 A, 200 A, and 250 A, and the weights thereof are about 110 kg, 170 kg, and 240 kg, respectively, in the order described.

As described above, it is difficult to manually lay the pipes laid in the tunnel in terms of both length and weight (for example, about 100 kg to 240 kg). Therefore, conventionally, when laying pipes, a work vehicle (hereinafter referred to as "piping trolley") has been used, but it is desired to be able to lay pipes while further reducing the burden on workers. ..

Here, for example, Patent Documents 1 to 3 disclose techniques for laying pipes. However, the techniques described in these patent documents relate to "laying pipes under existing paved roads", "laying pipes in grooves", etc., that is, related to techniques for installing pipes underground. .. Therefore, the idea of laying pipes on the ceiling is not disclosed, and the techniques described in these patent documents cannot be applied to the work of laying pipes on the ceiling of a tunnel.

Japanese Unexamined Patent Publication No. 07-026570 Japanese Unexamined Patent Publication No. 2001-206671 Japanese Patent Publication No. 2011-523924

The present invention has been proposed in view of such circumstances, and is a trolley for laying pipes for laying pipes on the ceiling of a tunnel, which can reduce the workload of workers, and is desired. It is an object of the present invention to provide a pipe laying trolley capable of laying pipes accurately at the position where the pipes are to be laid.

(1) The first invention of the present invention is a pipe laying trolley for laying pipes on the ceiling of a mine shaft, which is laid on the elevating deck and the elevating deck on the mine shaft. A pedestal on which the pipe is placed is provided, and the pedestal includes a pipe support portion that supports the pipe, a movable mechanism portion that moves the pipe support portion in the front-rear direction, a vertical direction, and a left-right direction. It is a trolley for laying pipes.

(2) In the second aspect of the present invention, in the first invention, the movable mechanism portion in the gantry further swivels and moves the pipe support portion within a predetermined angle range in a top view. It is a trolley.

(3) In the third aspect of the present invention, in the first or second invention, the pipe support portion has a grip portion for gripping a cylindrical pipe, and the grip portion has a diameter of the pipe to be gripped. It is a trolley for laying pipes whose gripping interval can be adjusted according to the above.

(4) In the fourth aspect of the present invention, in any one of the first to third inventions, the gantry is a trolley for laying pipes installed at a substantially central portion on the elevating deck.

According to the present invention, it is a trolley for laying pipes for laying pipes on the ceiling of a tunnel, and it is possible to reduce the workload of workers and to lay pipes accurately at a desired position. Plumbing trolleys can be provided.

It is a front view which shows typically the appearance of the bogie for piping laying. It is a perspective view which shows typically the appearance of the part of the gantry in the bogie for piping laying. It is a figure for demonstrating the movement of the part of the gantry in the bogie for piping laying.

Hereinafter, a specific embodiment of the present invention (hereinafter, referred to as “the present embodiment”) will be described in detail with reference to the drawings. The present invention is not limited to the following embodiments, and various modifications can be made without changing the gist of the present invention.

≪1. Bogie for plumbing ≫
FIG. 1 is a front view schematically showing the appearance of a trolley for laying pipes according to the present embodiment. The pipe laying trolley 1 is a mine trolley that moves in a mine or the like, and is used for laying the pipe 5 on the ceiling of the mine.

The pipe laying carriage 1 includes an elevating deck 10 that moves up and down in the vertical direction, and a pedestal 20 on which the pipe 5 to be laid on the ceiling of the tunnel is placed. The gantry 20 is installed on the elevating deck 10, preferably at a substantially central portion on the deck portion 11 (upper surface).

(1) Elevating deck The elevating deck 10 is a deck that freely elevates and descends in the vertical direction (height direction, arrow L direction in FIG. 1 (b)) in the front view as shown in FIG. A pipe 5 to be laid on the ceiling of the tunnel is placed through the pipe. More specifically, the elevating deck 10 has a deck portion 11 and an elevating mechanism portion 12 for raising and lowering the deck portion 11 in the vertical direction.

[Deck section]
The deck portion 11 is a member that serves as a pedestal on which the pipe 5 is installed via the pedestal 20. Further, the deck portion 11 is also a work place for workers, and the worker gets on the deck portion 11 and performs work such as setting the pipe 5 on the gantry 20.

[Elevating mechanism]
The elevating mechanism portion 12 includes a mechanism for elevating and lowering the deck portion 11. The specific elevating mechanism is not particularly limited, and as illustrated in FIG. 1, a vertical elevating (scissors) type mechanism can be used. Further, it may be a crane mechanism or a mechanism that moves up and down with a cylinder by hydraulic pressure or water pressure. Since the elevating mechanism portion 12 is composed of a scissors type elevating mechanism, a plurality of workers are on board the deck portion 11 and the pipe 5 to be laid is placed via a gantry 20 described later. Even when it is made to move, it is possible to move up and down smoothly while maintaining high stability.

Note that FIG. 1A shows the state of the elevating deck 10 before elevating and lowering, and shows the case where the elevating deck 10 ascending and descending in the vertical direction is in the lowest contracted state, and is a trolley for laying normal pipes. This is the state when 1 moves in the tunnel. Further, FIG. 1B shows a state when the elevating deck 10 is raised.

(2) Frame The frame 20 is a member installed on the deck portion 11 of the elevating deck 10 and on which the pipe 5 to be laid on the ceiling portion of the tunnel is placed. In the pipe laying trolley 1, the pipe 5 is placed on the pedestal 20 and moved to the ceiling portion to be laid in the tunnel. Further, in the gantry 20, as will be described in detail later, when laying the pipe 5 on the ceiling of the tunnel, the pipe 5 is moved in the front-rear direction, the up-down direction, and the left-right direction to a predetermined appropriate position. It is possible to make adjustments for laying in.

The location of the gantry 20 on the deck portion 11 is not particularly limited, but is preferably a substantially central portion of the deck portion 11. Even when the elevating deck 10 is raised and lowered in the vertical direction by installing the gantry 20 in the substantially central portion on the deck portion 11, and then the laying position of the pipe 5 is finely adjusted by operating the gantry 20. Stability can be increased.

FIG. 2 is a perspective view schematically showing the appearance of the gantry 20. As shown in FIG. 2, the gantry 20 has a pipe support portion 21 that supports the pipe 5, and a movable mechanism portion 22 that moves the pipe support portion 21 in the front-rear direction, the vertical direction, and the left-right direction. ing.

[Piping support]
The pipe support portion 21 is a member that directly supports the pipe 5 on the gantry 20. Specifically, the pipe support portion 21 includes a grip portion 31 (31a, 31b) that grips the cylindrical pipe 5, and a pedestal portion 32 that serves as a pedestal for the grip portion 31. The pedestal portion 32 is engaged with the slide plate 35, which is an element of the movable mechanism portion 22 described later.

(Grip part)
The grip portion 31 is a member that grips the pipe 5 laid on the ceiling of the tunnel by the pipe laying carriage 1, and is also called a pipe setter (pipe setter). As shown in FIG. 2, for example, two grip portions 31 are provided before and after the pedestal portion 32 described later in the longitudinal direction (grip portions 31a and 31b). By gripping the pipe 5 by the two gripping portions 31a and 31b in this way, it is possible to grip the cylindrical and long-axis pipe reliably and with high stability. The grip portion 31 grips a substantially central portion of the pipe 5 to be laid.

The grip portions 31a and 31b are not particularly limited, but are formed in a U shape in front view so as to easily grip the cylindrical pipe 5. When gripping the pipe 5 via the grip portions 31a and 31b, the U-shaped concave pipe is inserted.

Further, at least one of the plurality of grip portions 31a and 31b (the grip portion 31a in FIG. 2) is provided with a fixture 33 at the tip thereof. As described above, in the grip portion 31a, since the fixture 33 is provided at the tip portion, the gripped pipe 5 can be more firmly fixed, and the pipe laying trolley 1 can be moved or the ceiling. It is possible to prevent the pipe 5 from being displaced from the pipe support portion 21 (grip portions 31a, 31b) at the time of laying on the portion.

Further, at least one of the plurality of gripping portions 31a and 31b (the gripping portion 31a in FIG. 2) is provided with an adjusting portion 34 for adjusting the gripping interval. The adjusting unit 34 can adjust the interval (grip interval) when the pipe 5 is gripped by the grip portion 31 in the radial direction of the pipe 5 when the pipe 5 is gripped by the grip portion 31. Therefore, in the grip portion 31, even various pipes 5 having different pipe diameters can be securely fixed and gripped.

In the gripping portions 31a and 31b, when the adjusting portion 34 is provided only in the gripping portion 31a, the gripping portion 31b also adjusts the gripping interval in conjunction with the adjustment of the gripping interval in the gripping portion 31a by the adjusting portion 34. May be adjustable.

(Pedestal part)
The pedestal portion 32 is a member that serves as a pedestal for the above-mentioned grip portions 31a and 31b. That is, the grip portions 31a and 31b are fixedly installed on the pedestal portion 32, respectively. As described above, since the pedestal portion 32 is configured as an element in the pipe support portion 21, the pipe 5 can be more firmly fixed by the grip portions 31a and 31b. Further, by providing the pedestal portion 32, the strength of the pedestal 20 can be increased, and the load associated with the laying work of the pipe 5 can be further reduced.

The pedestal portion 32 is composed of, for example, a rectangular parallelepiped plate. In the pedestal portion 32, the grip portions 31a and 31b are fixed to the vicinity of the longitudinal end portions of the rectangular plate body in the top view, respectively. The method of fixing the grip portions 31a and 31 in the pedestal portion 32 is not particularly limited, and can be performed by bolt tightening or welding.

Further, the pedestal portion 32 is engaged with a slide plate 35, which will be described later, and can slide and move along the slide plate 35 in the longitudinal direction thereof.

[Movable mechanism]
The movable mechanism portion 22 moves the pipe support portion 21 having the above-described configuration in the front-rear direction, the up-down direction, and the left-right direction, respectively. In this way, the movable mechanism portion 22 adjusts the position of the pipe 5 when laying the pipe 5 on the ceiling portion of the tunnel by moving the pipe support portion 21 that supports the pipe 5 in a three-dimensional direction. The pipe can be laid at an appropriate position on the desired ceiling.

Specifically, in the movable mechanism portion 22, a slide plate 35 that engages with the pedestal portion 32 of the pipe support portion 21 to move the pipe support portion 21 in the front-rear direction and a board that moves the pipe support portion 21 in the left-right direction. It is composed of a shape body 36 and an elevating body 37 that moves the pipe support portion 21 in the vertical direction.

(Slide plate)
The slide plate 35 engages with the pedestal portion 32 of the pipe support portion 21 and moves the pipe support portion 21 in the front-rear direction via the pedestal portion 32. The slide plate 35 is a rectangular parallelepiped plate having a groove 35 g, and the pedestal portion 32 is engaged with the groove 35 g.

In the slide plate 35, the length in the longitudinal direction is longer than the length of the pedestal portion 32 described above. Therefore, the pedestal portion 32 engaged with the groove 35g of the slide plate 35 slides back and forth along the longitudinal direction of the slide plate 35.

Here, the "front-back direction" is a direction parallel to the long axis direction of the pipe 5 mounted on the gantry 20, and is the X direction in FIG. Further, the front-rear direction is also the longitudinal direction of the rectangular parallelepiped pedestal portion 32 and the slide plate 35 as described above. The movable range of the pedestal portion 32 in the X direction along the slide plate 35 (the movable range of the pipe 5) depends on the length of the slide plate 35, but for example, it moves in the movable range of 1000 mm in the front-rear direction. Can be configured to do so.

As described above, in the gantry 20, the pipe support portion 21 that supports the pipe 5 can be moved in the front-rear direction (X direction) by the slide plate 35 via the pedestal portion 32. The position of the supporting pipe 5 can be appropriately adjusted according to the positional relationship of the ceiling portion of the tunnel to be laid.

(Disc)
On the disc-shaped body 36, the pipe support portion 21 is placed and the pipe support portion 21 is moved in the left-right direction. As shown in FIG. 2, a slide plate 35 is placed directly above the disc-shaped body 36, and the pipe support portion 21 including the slide plate 35 is placed. Therefore, when the pipe support portion 21 is moved in the left-right direction by the disc-shaped body 36, the slide plate 35 that is in direct contact with the disc-shaped body 36 also moves in the left-right direction.

Specifically, the disc-shaped body 36 is, for example, a disk-shaped plate body that is substantially circular in top view, and the pipe support portion 21 is slid and moved in the left-right direction within the range of the circular diameter. In the disc-shaped body 36, the mechanism for sliding and moving the pipe support portion 21 is not particularly limited, but for example, a groove is provided on the upper surface of the disc-shaped body 36, and the slide plate 35 engaged with the groove is placed along the groove. A mechanism for sliding can be mentioned. Further, the mechanism may be a mechanism for sliding movement by providing a rail in the groove.

Here, the "left-right direction" is a direction perpendicular to the long axis direction of the pipe 5 mounted on the gantry 20, and refers to the Y direction in FIG. The range of the pipe 5 in the left-right direction depends on the size of the disc-shaped body 36, but can be configured to move in the left-right direction within a movable range of 500 mm, for example.

As described above, in the gantry 20, the pipe support portion 21 that supports the pipe 5 can be moved in the left-right direction (Y direction) by the disc-shaped body 36, whereby the pipe 5 that supports the pipe 5 can be moved. The position of can be appropriately adjusted according to the positional relationship of the ceiling of the mine tunnel to be laid.

Further, in the disc-shaped body 36, a groove is provided on the upper surface thereof in a circumferential shape, so that the pipe support portion 21 is centered on the central portion of the disc-shaped body 36 in the circumferential direction (in FIG. 2). The rotation movement (turning movement) may be possible in the direction of the arrow C in the above. Further, the angle of turning movement in the circumferential direction C (rotation angle centered on the central portion of the disc-shaped body 36) is not particularly limited, and may be, for example, in the range of −10 ° to + 10 °.

In this way, the pipe support portion 21 can be swiveled and moved in the circumferential direction (C direction) by the disc-shaped body 36, so that the angle cannot be adjusted in the front-rear direction (X direction) and the left-right direction (Y direction). The position of the supporting pipe 5 can be adjusted more appropriately according to the positional relationship of the ceiling portion of the tunnel to be laid. As described above, since the slide plate 35 is placed directly above the disc-shaped body 36, the pipe support portion 21 including the slide plate 35 swivels in the circumferential direction.

(Elevating body)
The elevating body 37 mounts the pipe support portion 21 and moves the pipe support portion 21 up and down in the vertical direction. As shown in FIG. 2, the elevating body 37 has a disc-shaped body 36 mounted directly above the elevating body 36 (furthermore, a slide plate 35 mounted directly above the disc-shaped body 36). The pipe support portion 21 is mounted including the above. Therefore, when the pipe support portion 21 is moved up and down by the elevating body 37, the disc-shaped body 36 directly in contact with the elevating body 37 also moves up and down in the vertical direction.

As schematically shown in FIG. 2, the elevating body 37 is configured by, for example, a bellows-shaped elevating mechanism driven by hydraulic pressure or the like. The structure including the shape of the elevating body 37 may be configured by a mechanism capable of elevating and lowering in the vertical direction, and may be configured by, for example, a scissors type elevating mechanism.

Here, the "vertical direction" refers to the height direction, which is the Z direction in FIG. The range of the pipe 5 in the vertical direction depends on the size of the elevating body 37, but can be configured to move in the vertical direction within a movable range of 800 mm, for example.

As described above, in the gantry 20, the pipe support portion 21 that supports the pipe 5 can be moved up and down in the vertical direction (Z direction) by the elevating body 37, whereby the supporting pipe 5 can be moved up and down. The position in the height direction can be appropriately adjusted according to the height relationship of the ceiling portion of the mine tunnel to be laid.

Further, in the elevating body 37, the elevating body 37 is not limited to being moved up and down in parallel with the horizontal direction as a whole, and for example, only one end of the elevating body 37 is raised and viewed from the front. When the elevating body 37 as a whole may have a mechanism that moves so as to be slanted. For example, as shown in FIG. 3B, the elevating body 37 has a mechanism in which only the left end of the elevating body 37 rises at a predetermined angle T (for example, in the range of about -3 ° to + 3 °). You may be.

In this way, by having a mechanism in which only one end of the elevating body 37 rises by a predetermined angle T, the height position cannot be adjusted by the overall vertical (Z direction) elevating movement. Can also be done. Further, when laying the pipe 5 on the ceiling of the tunnel, the pipe 5 can be adjusted at a slight angle, such as when the pipe 5 is laid at an angle, and the work load of the laying can be further reduced. In particular, when connecting the ends of the existing pipe and the new pipe, the operation for butting both pipes becomes easy. For example, when the positions of the ends are misaligned with each other, the elevating deck 10 or the like There is no need to operate.

≪2. Piping laying in the ceiling inside the tunnel using a trolley for laying pipes ≫
Next, a pipe laying operation using the pipe laying carriage 1 having the above-described configuration will be specifically described. As described above, the pipe laying carriage 1 includes an elevating deck 10 that moves up and down in the vertical direction, and a pedestal 20 on which the pipe 5 to be laid in the tunnel is placed. The gantry 20 has a pipe support portion 21 that supports the pipe 5, and a movable mechanism portion 22 that moves the pipe support portion 21 in three-dimensional directions in the front-rear direction, the vertical direction, and the left-right direction.

First, in the pipe laying carriage 1, the pipe 5 (new pipe 5) to be laid on the ceiling of the tunnel is installed. Specifically, the pipe 5 is gripped and installed on the pipe support portion 21 constituting the pedestal 20 of the pipe laying carriage 1 via the grip portion 31 fixed to the pedestal portion 32. The gripping portion 31 is provided with an adjusting portion 34 for adjusting the gripping interval, and is adjusted so that it can be firmly fixed according to the diameter of the pipe 5 to be installed.

Next, with the pipe 5 installed on the gantry 20, the pipe laying carriage 1 is moved to the position (laying position) of the ceiling portion in the tunnel where the pipe 5 is laid. After that, the trolley 1 for laying pipes is roughly stopped near the laying position.

Next, the pipe laying trolley 1 stopped at the laying position is fixed at that place. At the time of fixing, the trolley fixing tool 1a is used to securely fix the trolley 1 for laying pipes to the ground so as not to move slightly in the front-rear direction or the like.

Next, the elevating deck 10 constituting the pipe laying carriage 1 is operated to raise the elevating deck 10 upward. When raising the elevating deck 10, it is not necessary to raise the pipe 5 to a position where it can be laid on the ceiling, and the height is adjusted to a rough height. Further, since the worker is on board the elevating deck 10, the height is roughly adjusted in consideration of the height of the worker.

Next, the gantry 20 is moved to adjust the position of the pipe 5. Specifically, by moving the slide plate 35 in the movable mechanism portion 22 constituting the gantry 20 in the front-rear direction, the position of the pipe 5 is adjusted in the front-rear direction with respect to the position of the ceiling portion to be laid. Further, by moving the plate-shaped body 36 in the movable mechanism portion 22 in the left-right direction, the position of the pipe 5 is adjusted in the front-rear direction with respect to the position of the ceiling portion to be laid. Further, by moving the elevating body 37 in the movable mechanism portion 22 in the vertical direction, the position of the pipe 5 is adjusted in the vertical direction with respect to the position of the ceiling portion to be laid.

In this way, the pipe laying trolley 1 itself is moved in the mine shaft to stop near the pipe laying position, and then the elevating deck 10 is raised to roughly adjust the height, and then the movable mechanism portion 22. By moving each configuration of the above, an accurate adjustment is made to the position of the ceiling to be laid.

Further, since the disc-shaped body 36 constituting the movable mechanism portion 22 can swivel and move the gripped pipe 5, the angle of the long axis of the pipe 5 is adjusted with respect to the ceiling portion to be laid. By repeating these position adjustment operations as necessary, the position is adjusted to an appropriate position.

Next, the existing pipe and the new pipe 5 are connected and laid via a pipe joint. At this time, the height position at the time of laying is adjusted by moving the elevating body 37 in the vertical direction. Move it diagonally. As a result, the new pipe 5 to be laid can be connected to the existing pipe at a predetermined angle, and the connection work can be smoothly performed.

And finally, the new pipe 5 is fixed. As a result, the new pipe 5 can be laid at the desired position of the ceiling portion.

As described above, according to the pipe laying trolley 1 according to the present embodiment, when laying the new pipe 5 by connecting it to the end of the existing pipe with a pipe joint, an elbow, or the like, the manpower of the worker is required. You can do the work with little need. Therefore, the workload of the worker can be effectively reduced, and the risk of developing low back pain due to overload on the body can be reduced. In particular, when laying the pipe 5 on the ceiling of the mine shaft, the mine shaft tends to be in a high temperature environment due to the retention of hot air. In that respect, by using the pipe laying trolley 1, the work load can be reduced and the laying work can be performed efficiently, so that the risk of developing heat stroke or the like can be reduced.

By adding a security interlock when the movable mechanism unit 22 of the elevating deck 10 and the gantry 20 is operated, for example, when the controller is operated with one hand, the movement is slow speed, and when the slow speed button is operated with both hands, the movement is high speed. You may try to do it. As a result, the worker boarding on the elevating deck 10 can prevent a fall accident or the like due to the rapid speed movement of these mechanisms.

Further, unless the outrigger (overturn prevention device protruding from the side surface of the vehicle) is projected based on a sufficient height at which the center of gravity does not move upward and the entire vehicle does not fall when the elevating deck 10 is raised. The elevating deck 10 may be set so as not to rise.

1 Piping laying trolley 1a trolley fixture 5 Piping 10 Elevating deck 11 Deck part 12 Elevating mechanism part 20 Stand 21 Piping support part 22 Movable mechanism part 31, 31a, 31b Grip part 32 Pedestal part 33 Fixture 34 Adjustment part 35 Slide plate 35g groove 36 disc-shaped body 37 elevating body

Claims (4)

It is a pipe laying trolley for laying cylindrical pipes on the ceiling of the tunnel.
An elevating deck that goes up and down in the vertical direction,
On the elevating deck, a pedestal on which the pipe to be laid in the tunnel is placed is provided.
The gantry has a pipe support portion that supports the pipe, and a movable mechanism portion that moves the pipe support portion in the front-rear direction, the up-down direction, and the left-right direction .
The pipe support portion is composed of a grip portion that grips the pipe and a pedestal portion that serves as a pedestal for the grip portion.
The movable mechanism portion is provided on the lower side of the pedestal portion of the pipe support portion, and is a rectangular plate-shaped slide plate that engages with the pedestal portion and moves the pipe support portion in the front-rear direction via the pedestal portion. A disk-shaped disc-shaped body provided on the lower side of the slide plate and engaging with the slide plate to move the pipe support portion in the left-right direction via the slide plate, and a lower side of the disc-shaped body. It is composed of an elevating body provided in the above and directly connected to the disc-shaped body to move the pipe support portion in the vertical direction via the disc-shaped body.
A dolly for laying pipes. The disc-shaped body has a groove provided on the upper surface thereof in a circumferential shape so as to swivel and move the pipe support portion in a range of −10 ° to + 10 ° in a top view.
The trolley for laying pipes according to claim 1. The trolley for laying pipes according to claim 1 or 2, wherein the grip portion is capable of adjusting the grip interval according to the diameter of the pipe to be gripped. The trolley for laying pipes according to any one of claims 1 to 3, which is installed at a substantially central portion on the elevating deck.

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