JPH03125800A - Conveyer using truck traveling on rail - Google Patents

Abstract

PURPOSE:To smoothly move up and down a rising load-space and prevent the truck from falling down, by cutting diagonally the edge of rails installed on the loading space of a shaft connecting transfer passes of high and low levels and by forming it to be inwardly movable around an axis. CONSTITUTION:Rails 25, 25 for transferring segments are laid in a lifting frame 24 and fixed at a lifting block 26 to constitute a loading space 14. Next, the rail ends 37, 37 connected to rails 12, 12 of rails 25, 25 are cut off at the separated points 38, 38 to cut diagonally to be inwardly movable respectively around an axes 40, 40 as the centers. Next, the edge of rails 12, 12 at the charge and discharge opening is laid with a specified distance against the loading space 14 to connect to or separate from the rails 12, 12 by turning of the rail ends 37, 37. In this way, a truck 8 can be smoothly transferred not to hinder lifting the loading space 14 and to prevent the loads from breaking.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a conveyance device using a rail-traveling truck.

[Prior Art] In general, systems for transporting materials and equipment, etc.
A system is used in which rails are laid on a transport route, a movable trolley is placed on the rails, and materials, equipment, etc. are transported by the trolley.

If there is a large height difference such as a shaft in the above transportation route,
When vertically transporting materials, equipment, etc., a high route and a low route can be connected by a lifting device.

Conventionally, a general conveyance device having a vertical conveyance path has a first conveyor on a high-altitude path of the conveyance path from the conveyance source to the top of the vertical conveyance path.
A second rail is laid on the low route from the bottom of the vertical transport path to the transport destination, and a rail is installed between the first rail end and the second rail end of the vertical transport path, respectively. A hollow frame having a loading/unloading entrance is provided at the end of the rail, and a lifting platform is disposed within the hollow frame so as to be able to rise and fall freely (these hollow frames and the lifting platform constitute a lifting device),
A third rail capable of connecting between the first rail end and the second rail end is laid on this elevating loading platform,
It has a structure in which carts are arranged on the first to third rails.

In the above-described transport device, materials and equipment are first placed on a trolley on the first rail at the transport source, and the trolley is run on the first rail on the elevated route from the transport source to the elevated loading/unloading entrance of the hollow frame. move it. Next, the lifting platform in the hollow frame is stopped at the elevated loading/unloading entrance, and the third rail on the lifting platform is connected to the first rail on the elevated route. Next, the trolley is moved from the first rail to the third rail at the elevated loading/unloading entrance, and is stopped on the third rail. next,
The cart on the third rail is lowered and moved to the low loading/unloading entrance by the lifting platform, and the third rail is connected to the second rail on the low route at the low loading/unloading entrance. Next, the cart is moved from the third rail to the second rail, and sent to the destination on the second rail. Conversely, the cart is transported from a low place transport source to a high place transport destination.

Conventionally, the elevating device used in the above-mentioned transport equipment has a winch installed at the top of a steel tower or building, and a lifting platform loaded with cargo is suspended from the winch to the inside of the tower or building using a wire, and the winch lifts the cargo platform. This is done by moving it up and down along the guide rail.

[Problems to be Solved by the Invention] By the way, in the conveying device having the above-mentioned lifting device,
When the elevating cargo platform is moved up and down along the guide rail with a winch, the elevating cargo platform vibrates, so a space is required between the elevating cargo platform and an adjacent structure other than the guide rail to absorb the amount of vibration. Therefore, even when the lifting platform is stopped at the loading/unloading entrance, a gap is created between the third rail end and the first or second rail end. As a result, in the above-mentioned conveyance device, there is a problem in that when the cart moves through the gap, the cart vibrates, preventing smooth running and causing damage to the cargo loaded on the cart.

This invention has been made in view of the above circumstances, and its purpose is to provide a conveyance device using a rail running type truck that allows the truck to run smoothly without interfering with the lifting and lowering of the lifting platform. be.

[Means for Solving the Problems] A conveyance device using a rail running trolley according to the present invention conveys materials along a conveyance path in which a vertical conveyance path having a height difference is provided in the middle of a horizontal conveyance path. A first rail is laid in a high place conveyance path so that one end faces the top of the vertical conveyance path, and a first rail is laid in a low place conveyance path so that one end faces the bottom of the vertical conveyance path. A second rail is laid on the vertical conveyance path, and a hollow frame is installed in the vertical conveyance path, the upper end of which faces the end of the first rail, and the lower end of which faces one end of the second rail. A lifting platform is arranged so as to be able to be raised and lowered within the interior, and a third rail is laid on the lifting loading platform. The truck is transferred between the rail and the third rail, and the truck is moved from the first rail to the second rail by raising and lowering the lifting platform, and the truck is moved from the first rail to the second rail. In the conveying device configured to transfer to the first rail, the third
The connection end of the third rail that connects to the first or second rail is separated from the other parts, and the tip of the connection end of the third rail is connected to the first or second rail. Rotatably pivot in a direction away from the hollow frame from a possible position, or separate the connecting ends of the first and second rails that connect to the third rail from other parts. The first and second connecting ends are rotatably supported in a direction away from the lifting platform from a position where the tips thereof can be connected to the third rail. be.

[Function] According to the above configuration, when the truck moves between the first or second rail and the third rail, the end portion of the rotatably supported rail is moved between the first or second rail and the third rail. By arranging the first or second rail and the third rail so as to form a straight line and connecting the rails without gaps, smooth running of the bogie can be achieved.

In addition, when raising and lowering the lifting platform, the end of the rail is rotated and retreated to the inside of the lifting loading platform or the loading/unloading entrance side of the hollow frame, and between the lifting loading platform and the hollow frame other than the guide rail, By providing an interval that absorbs vibrations when the lifting platform moves up and down, the lifting and lowering of the lifting platform is not hindered.

[Example] Embodiments of the present invention will be described below with reference to the drawings.

In the embodiment described here, the present invention is applied to a tunnel construction site using the N'Wold construction method, and is applied to a sliding device for conveying tunnel construction materials from the ground into the tunnel.

First, referring to FIG. 1, we will explain the N'ld construction method to which this embodiment is applied. A vertical shaft 2 is formed at a predetermined location underground, the bottom part 1 of which is as deep as the tunnel formation depth. A shield machine 3 is launched horizontally from the bottom l of the shaft 2, and while excavating another mountain with the shield machine 3, segments 4, 4, which are cylindrical parts, are attached to the excavation wall surface.
By assembling, a tunnel 5 is formed behind the shield machine 3. The conveying device according to this embodiment extends the segments 4.4 from the material storage warehouse 6 on the ground where the segments 4.4 are stored to the vicinity of the shield machine 3.
It is used for the purpose of transporting...

The above-mentioned conveyance device includes a conveyance path from a material storage warehouse 6 provided on the ground to the tip of a tunnel 5 dug by a shield machine 3 from the vertical shaft 2 via a lifting device 7 provided in the shaft 2, and this conveyance path. It consists of a trolley 8 placed above.

In the material storage warehouse 6, stored segments 4.4...
・Transfer device for loading and unloading! 0 is set.

Rails 12.12 (first rails) are laid between the material storage warehouse 6 and the opening 11 of the shaft 2. A lifting device 7 is provided in the shaft 2 with its upper end facing the end of the rail 12.12.

As shown in FIGS. 2 to 4, the lifting device 7 includes a steel hollow frame 13 extending along the entire length of the shaft 2, and a lifting platform disposed within the hollow frame 13 so as to be able to rise and fall freely. 14, and a winch 17 that moves the lifting platform I4 up and down via a wire 16 wound around pulleys 15, 15...
It has the following.

The hollow frame 13 has a tower stay 18 and a boat 20.
．． 20. It is supported and fixed within the shaft 2 by 20. This hollow frame 13 is provided with guide rails 21, 21, . . . extending vertically from the upper end to the lower end.
An unloading port 22 is provided at a portion facing the end of the shaft 2, and an unloading port 23 is provided near the bottom l of the shaft 2.

Lifting loading platform! 4 fixes the loading platform 26 on which rails 25 and 25 (third rails) are laid to the lifting frame 24 as shown in FIGS. 5(A) and 5(B). It's the second one. This lifting platform 14 has guides 27, 27, . . . provided on the lifting frame 24, guide rails 21, 21, .
At the same time, the side rollers 28, 28... provided on the end side of the loading platform 26 are guided inside the hollow frame 13, and the guide rails 21, 21... and the inside of the hollow frame I3 are guided. It is possible to go up and down along it. The loading platform 26 also has wheels 30 of the cart 8 mounted thereon.
A wheel lock device 3I is provided to lock the vehicle in a stopped state. This wheel locking device 31 includes a wheel stopper 32 and a drive cylinder 34 for moving the wheel stopper 32 onto the rail 25.

In addition, as shown in Figure 1, the export population 23 and the tunnel 5
There is a rail 35.35 (
a second rail) has been laid, and the rail 35.35
A transfer device 36 for transferring the segments 4, 4, . . . to the shield machine 3 is provided at the end K on the shield machine 3 side.

On the other hand, the trolley 8 has rails 12.12 and 25.25.
, it is now possible to run on rails 35.35.

In the above configuration, when the elevating cargo platform 14 is raised or lowered to reach the highest position or the lowest position, the end of the rail 25.25 of the elevating cargo platform +4 is connected to the rail 12.12 or the rail. 35.35.

In the conveyance device configured as described above, in this embodiment, the rails 12, +2 (35
, 35) are separated at cutting parts 38, 38. The cutting portions 38.38 are cut at an angle so that the rail end portions 37.37 can rotate inwardly relative to each other about a shaft body 40.40, which will be described later. A support piece 41.41 is fixed to one side of the inside of the rail end 37.37, and these support pieces 41, 41 are rotatably supported by a shaft body 40.40 fixed to the lifting platform 14. There is. Therefore, the rail end 37.37 has its tip 42.37.
The shaft body 40.
40. Also, the rail end 37.3
7 ascends to the drive cylinder (path shown) and is rotated. On the other hand, at the loading/unloading entrance, the rail 12.
The end of 12 is arranged so as not to impede the lifting and lowering of the lifting platform 14.
It is located a predetermined distance apart from the lifting platform 14.

6 of this mechanism, the rail ends 37.37 have tips 42.42 when placed in line with the body of the rail 25.25 as shown in FIG. The rail 1 crosses the gap between the lifting platform I4 and the hollow frame 13.
2. It is connected to [2] with almost no gap.

Furthermore, when the rail end 37.37 rotates in the direction away from the hollow frame 13 from the state where it is connected to the rail 12.12, the rail end 37.37 is adapted to fit inside the outline of the lifting/lowering platform 14.

The end of the rail 25.25 that connects with the rail 35.35 at the unloading port 23 also has the same configuration as the rail end 37.37.

In addition, in the above-mentioned conveyance device, the progress and stop of the carts 8, 8..., the switching of the rail ends 37, 37..., the wheel lock device 3! The activation and release of the lifting device 12, the lifting and lowering and stopping of the lifting device 12, etc. are automatically controlled by a central monitoring device 43 shown in FIG.

In the above-mentioned transport device, the cart 8 is loaded with materials (segments 44 . . . ) by the transfer device 10 in the material storage warehouse 6 and is transported to the unloading port 22 of the lifting device 7 . Next, the lifting platform 14 of the lifting device 7 is stopped at the high place unloading platform 22, and the rail end 37 is rotated by the drive cylinder.
．． Rail 12 by 37! 2 and the rail 25.25 are connected with almost no gap. Next, at the unloading stage 22, the trolley 8 is moved from the rail 12.12 onto the rail 25.25 on the lifting platform 14, and the wheel stopper 32 is moved onto the rail 25.25 by the drive cylinder 34 of the wheel locking device 31. The wheels are locked and the trolley 8 is stopped on the lifting platform 14. The rail end 37.37 is then pivoted so that the entire rail end 37.37 fits within the contour of the lift platform 14. Next, the lifting platform 14 is lowered by the winch 17 along the guide rails 21, 21, . . . and stopped at the unloading platform 23. Next, the export population 22
Rail 35.35 and rail 25.
25 are connected. Next, the wheel locking device 31 is released, and the truck 8 is moved from the rail 25.25 to the rail 35.35.
It is moved upward and transferred to the transfer device 36.

The materials are unloaded from the cart 8 by this transfer device 36, and the empty cart 8 is returned to the material storage warehouse 6.

In the above operation, when the lifting platform 14 moves up and down,
At the loading/unloading entrance 22.23, the ends of the rails 12, I2, and rails 35.35 are located a predetermined distance apart from the lifting platform, and the rail ends 37.37 are located inside the contour of the lifting platform 14. Since it is stored, the operation of the lifting device 8 is not hindered.

Also, if the trolley 8 is on the rail 12.12 or the rail 35.3
5 and the rail 25.25, the rail end 37.37 rotates to move the rail 12.5 and the rail 25.25.
12 or rail 35.35 and rail 25.25 are connected with almost no gap, vibrations when the trolley 8 moves between the rails can be reduced, and the trolley 8 can run smoothly. Damage to loaded materials can be prevented.

In this embodiment, since the wheel locking device 31 is provided, the cart 8 will not fall from the lifting platform 14, but in the unlikely event that the cart 8 detaches from the wheel locking device 31 and falls on the rail 25.25. When the vehicle starts running, the rail end 37.37, which is accommodated within the contour of the lifting platform 14, will touch the rail 25.25.
The end of the carriage 8 is blocked and acts as a stopper to prevent the carriage 8 from falling from the lifting/lowering platform 14.

FIGS. 6(A) and 6(B) are diagrams showing another embodiment of the present invention. In this embodiment, in a configuration substantially similar to that of the above-mentioned conveying device, the rail end portions 45.45 of the rails 12.12 (35, 35) are cut off instead of having the end portions of the rails 25.25 separated. 46. This is a configuration separated at 46.

This cutting portion 46.46 is configured to be cut diagonally so that the rail end portions 45.45 can rotate inwardly relative to each other about a shaft body 47.47, which will be described later. Support pieces 48.48 are fixed to the inner side surfaces of the rail ends 45.45, and these support pieces 48.48 are rotatable on shaft bodies 47.47 fixed to the carrying-out port 22 of the hollow frame 13. Supported. Therefore, the rail end 45.4
5 is pivotally supported by a shaft body 47.47 so that its tip end 50.50 can rotate in a direction away from the lifting platform 14 from a position where it can be connected to the rail 25.25. Moreover, the rail end portion 45.45 is adapted to be rotated up to the drive cylinder (path shown). On the other hand, rail 25.
The end of 25 is located at a predetermined distance from the hollow frame 13 so as not to impede the vertical movement of the lifting platform 14.

Under this configuration, the rail end portions 45.45 can be raised and lowered by the leading end portion 50.50 when they are positioned in line with the main body of the rail 12.12 as shown in FIG. 6(A). The rail 25 extends beyond the gap between the loading platform 14 and the hollow frame 13.
．． It is designed to be connected to 25.

Furthermore, when the rail end 45.45 rotates in the direction away from the lifting platform 14 from the state where it is connected to the rail 25.25, the rail end 45. 45 is arranged so that the whole of the hollow frame 13 is accommodated on the side of the discharge port 22.

The rail end portion of rail 35.35 has a similar configuration to the rail end portion 45.45 of rail 12.12.

In this embodiment, when the lifting platform 14 stops at the unloading position 22, the rail ends 45.45 rotated by the drive cylinder move the rails I2, +2 and rail 25.
25 are connected with almost no gap. In addition, the lifting platform 1
When 4 moves up and down, the rail end 45.45 rotates,
The rail end 45.45 of the rail 12.12 is accommodated on the loading port 22 side of the hollow frame 13, and the rail 35.35
The rail ends 45.45 of the hollow frame 13 are accommodated on the side of the discharge port 23. Next, the elevating loading platform 14
3, the rail 35.35 and the rail 25.25 are connected in the same way as when the vehicle stopped at the discharge point 22.

In the above embodiment as well, the same effects as in the embodiment described above can be obtained.

[Effects of the Invention] As explained in detail above, according to the present invention, when the lifting platform is raised or lowered, the first and second rails or the third
The rotatable end of the rail separated from the rail rotates in a direction away from the hollow frame or lifting platform,
An appropriate spacing is provided between the hollow frame and the lifting platform to absorb vibrations of the lifting platform. Therefore, the lifting platform can be raised and lowered smoothly. Furthermore, when the cart moves between the first and second rails and the third rail, the rails can be connected with almost no gaps by rotating the end portions of the rails. The trolley is the first
Moreover, it is possible to run smoothly between the second rail and the third rail, and damage to the cargo can be prevented.

In addition, when the end of the third rail is separated and made freely rotatable, when the lifting platform moves up and down, the end of the rail that moves in the direction away from the hollow frame becomes the end of the third rail. It acts as a stopper and prevents the cart from falling off the platform.

[Brief explanation of the drawing]

The drawings show examples of the present invention, and FIG. 1 is a schematic perspective view of a tunnel construction site when the present invention is applied to material transportation in tunnel construction using the shield method, and FIGS. 2 to 4 2 is a front view, FIG. 3 is a side view, FIG. 4 is a plan view, and FIG.
Figures (A) and (B) and Figures 6 (A) and (B) are plan views of essential parts of the lifting platform stopped at the loading/unloading entrance of the lifting device. 2...Shaft, 3...Shield machine, 6.
...Material storage warehouse, 7...Elevating device, 8...
...Dolly, 12...Rail, 14...Elevating loading platform, 25...Rail, 35...Rail 1.3
7...Rail end, 45...Rail end.

Claims (1)

[Claims] A conveyance device that conveys materials to a conveyance path in which a vertical conveyance path with a height difference is provided in the middle of a horizontal conveyance path, and one end faces the upper part of the vertical conveyance path in the high-altitude conveyance path. Lay the first rail so that the first rail faces the bottom of the vertical transport path, lay the second rail on the low transport path so that one end faces the bottom of the vertical transport path, and lay the second rail on the vertical transport path so that the upper end faces the bottom of the first rail. A hollow frame is installed whose lower end faces one end of the second rail, and a lifting platform is disposed within the hollow frame so as to be movable up and down, and a third loading platform is placed above the lifting platform.
rails are laid, a bogie that can run freely on the first, second, and third rails is arranged, and the bogie is transferred between the first or second rail and the third rail. In the transfer device, the cart is transferred from the first rail to the second rail or from the second rail to the first rail by raising and lowering the elevating loading platform. The connection end connected to the first or second rail is separated from the other parts, and the third
The connection end of the rail is rotatably supported in a direction away from the hollow frame from a position where the tip thereof can be connected to the first or second rail, or The connecting end of the rail connected to the third rail is separated from the other parts, and the first and second connecting ends are moved from a position where their tips can be connected to the third rail. A conveyance device using a rail-traveling trolley, characterized in that it is rotatably supported in a direction away from an elevating loading platform.