JP2006002450A - Muck loading device and muck loading facility - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a muck loading device and a muck loading facility capable of installing even such a transport conveyor that it can be suspensively supported by facilitating the handling with a small size on an optional position. <P>SOLUTION: The muck loading device 1 detachably supported on a working arm 5 of the first working vehicle and loading muck in the middle of a conveyance route of the transport conveyor 3 is so installed that a frame body 22 is provided to the front end section of the working arm 5 through a horizontal turning device 21 turnable around the axial center in the vertical direction, a hopper 24 is provided to the upper part of the frame body 22, at the same time, an oblong flow straightening exhaust port 26 is provided to the lower part of the frame body 22 and that the flow straightening exhaust port 26 is set parallel with the transport direction of the conveyor by the horizontal turning device 21. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slip loading device and a slip loading facility for loading soil excavated in the middle of a tunnel onto a conveyor device in the middle of a transport path when excavated sediment is carried out by a conveyor device in a tunnel being excavated, for example.

  The NATM method is used not only in mountain tunnels, but also in urban underground tunnels, and the dumping (sediment) excavated by this NATM method has conventionally been carried by dump trucks. In order to improve efficiency, automation, and work environment, stretch belt conveyor devices have been adopted.

  By the way, in tunnel excavation, excavation is performed in which the bottom of the tunnel is dug in the invert excavation part in the middle of the tunnel, in addition to the face excavation generated in the excavation part at the tip of the tunnel. For this reason, if it is possible to load a gap in the middle of conveyance of the stretchable belt conveyor device, the conveyance efficiency can be further increased.

As described above, for example, as proposed in Patent Document 1, a belt conveyor is incorporated in a self-propelled vehicle, or proposed in Patent Documents 2 and 3 as a means of additionally inserting a gap in the middle of the transport route of the transport conveyor. As described above, some are arranged so as to be able to travel and move along the frame of the conveyor.
JP 2000-356100 A JP-A-9-52611 JP2002-4777

  However, the self-propelled type of Patent Document 1 is large in size and is difficult to handle in a narrow space such as in a tunnel. In the traveling type of Patent Documents 2 and 3, for example, when the conveyor device is installed on the side wall of the tunnel, the suspension member is often connected to and supported by the conveyor frame from the upper side of the side wall. There is a problem that the member cannot be installed because the member becomes an obstacle to traveling.

  SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, and to provide a slip loading device and a slip loading facility that are small and easy to handle and can be arbitrarily installed even on a conveyor that is supported by suspension. .

  The slip loading device according to claim 1 is a slip loading device that is detachably supported by a tip end of a work arm that is swingably movable up and down on the work vehicle, and loads the slip in the middle of the transport path of the transport conveyor. A frame main body is provided at the tip of the working arm via a horizontal rotation device that can rotate around a vertical axis, and a hopper is provided at the upper part of the frame main body, and a horizontally long lower part of the frame main body. The rectifying and discharging port is provided, and the rectifying and discharging port is arranged along the conveyor conveyance direction by the horizontal rotation device.

According to a second aspect of the present invention, there is provided a slip loading device in which a crusher for crushing a large-diameter slip is provided on the frame body.
According to a third aspect of the present invention, a pair of left and right elastic guide plates that hold the gap along both sides in the length direction are provided at the rectifying discharge port.

According to a fourth aspect of the present invention, there is provided a slip loading device in which a vibration exciter is attached to a hopper.
The slip loading facility according to claim 5 is provided with a conveyor support for supporting the transport conveyor from below at the bottom of the transport conveyor at the mounting position of the slip loading device according to any one of claims 1 to 4. A slip rectifying device having a pair of left and right rectifying plates for guiding and holding the slip is installed on the transport conveyor on the downstream side in the transport direction.

  According to the first aspect of the present invention, even when the work conveyor is used by being attached to the work arm of the work vehicle and is supported by the suspension member, it is conveyed by the movement of the work vehicle and the displacement of the work arm. It can be installed at any position on the route. Further, since the work arm can be set in any direction with respect to the frame body by the horizontal rotation device, the work vehicle can be arranged close to the transport conveyor by narrowing the work arm with respect to the transport path. . Thereby, even if it is the loading operation | work in a narrow tunnel, the obstacle by a work vehicle can be stopped to the minimum. Furthermore, by arranging the horizontally elongated discharge outlets along the conveyance path in this way, there is no falling of minerals, and the gap can be conveyed in a state where the center of the conveyance path is raised. Therefore, it is small and easy to handle, and can be easily applied to a transport conveyor that is attached to a wall surface in a cantilever manner and supported by a suspension member.

According to the second aspect of the present invention, the large-diameter stone block or shear can be crushed below a predetermined level and stably loaded on the conveyor, and the conveyor can be smoothly conveyed.
According to the invention described in claim 3, by providing the elastic guide plate at the horizontally elongated rectifying discharge port arranged along the conveying direction, the rising state of the additionally inserted gap is maintained and the collapse is prevented. It is possible to stably convey the slip on the transport conveyor, and it is possible to prevent the transport members such as the transport belt from jumping up due to a drop impact.

According to the fourth aspect of the present invention, it is possible to smoothly feed out the slip from the hopper to the rectifying discharge port while preventing the stay, bridging and blockage of the slip by the vibrator.
According to the fifth aspect of the present invention, the load of the slip dropped on the transfer conveyor can be effectively supported by the conveyor support tool, and the pair of right and left rectifying plates arranged on the downstream side of the slip loading device can shift the slip. It is possible to more stably convey the slip that has been added to the conveyer while maintaining the raised state.

DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment of a slot loading facility according to the present invention will be described with reference to the drawings.
As shown in FIG. 7 to FIG. 9, this slip loading facility loads invert slips that have been dug down in the middle of the transport path of the transport conveyor 3 that transports the slip excavated face during tunnel T excavation. , A slip loading device 1 detachably attached to the work arm 5 of the first work vehicle (backhoe) 4 and disposed on the transport conveyor 3, and a slip rectification constructed on the transport conveyor 3 on the downstream side in the transport direction The apparatus 2 and a conveyor support 9 that is detachably disposed at the installation position of the loading device 1 and supports the transport conveyor 3 from below are configured by a second work vehicle (hydraulic excavator car) 6. It is thrown into the slip loading device 1 through a bucket 8 provided on the work arm 7.

  The first work vehicle 4 is provided with a turntable 4c that can turn around a vertical axis on a self-propelled carriage that can be driven and turned by crawlers 4a that are arranged on the left and right sides. The working arm 5 is provided. The working arm 5 includes a boom portion 5a whose base end portion is supported on the swivel base 4c so as to be rotatable up and down around a horizontal axis, and an arm portion connected to the tip end portion of the boom so as to be bent around the horizontal axis. It is configured in a two-stage folding type consisting of 5b. As shown in FIG. 1 and FIG. 2, a support frame 11 that supports the slip loading device 1 is supported at the distal end portion of the arm portion 5 b via a vertical rotation device 16 so as to be rotatable up and down. In the vertical rotation device 16, the support frame 11 is supported at the tip of the arm portion 5b via the horizontal support shaft 12 so as to be rotatable up and down, and the piston rod 13a of the hoisting cylinder 13 provided on the arm portion 5b is intermediate. The pin 14 is connected to the support frame 11 via the lever 14 and the connecting rod 15, and the support frame 11 is swung up and down around the support horizontal support shaft 12 to adjust the pitching angle (vertical rocking angle) of the slip loading device 1. can do.

  The conveyor 3 is a stretchable type that can be developed in response to excavation of the tunnel T. The conveyor frame 3a is cantilevered on the side wall of the tunnel T and the conveyor frame 3a is suspended from the upper side of the side wall via the suspension support material 10. It is supported. As a result, the excavation of the roadbed of the tunnel T is not hindered, and the height adjustment is not necessary. As shown in FIG. 3, the conveyor frame 3a includes a plurality of guide rollers 3b and 3c arranged at regular intervals in the transport direction, and a transport belt 3d guided by the guide rollers 3b and 3c. In the belt conveyor, the guide roller on the upper conveyance forward side is arranged in a tray shape by the horizontal roller 3b at the center and the inclined rollers 3c on both sides to guide the conveyance belt 3d, and the conveyance belt 3d is guided by a conveyance driving device (not shown). Is transferred.

  As shown in FIGS. 1 to 4, the slip loading device 1 is supported by the support frame 11 via a horizontal rotation device 21 for adjusting a rotation angle (yawing angle) around a vertical axis. A crusher 23 provided in the frame main body 22 for crushing the gap to a certain size, a hopper 24 provided in the upper part of the frame main body 22, and a vibrator provided in the lower part of the hopper 24 25 and a rectifying and discharging member 27 that forms a horizontally elongated rectifying and discharging port 26 under the frame main body 22.

  In the horizontal rotation device 21, a frame main body 22 is rotatably supported in a range of α (about 90 ° in the figure) via a support arm 32 on a vertical shaft 31 provided on the support frame 11. The piston rod of the horizontal rotation cylinder 34 is pin-connected to the drive arm 33 attached to the vertical shaft 31, and the horizontal rotation cylinder 34 is expanded and contracted to rotate the frame body 22 around the vertical shaft 31. Can be moved.

  The frame main body 22 is formed in a rectangular box shape opened in the vertical direction, and the crushing machine 23 includes a pair of left and right crushing shafts 35 penetrating and supported by bearings of front and rear face plates with a predetermined crushing interval. A plurality of crushing blades 35 a are attached to predetermined positions 35. Further, a crushing rotary drive device (hydraulic or electric motor) 36 is connected to the rear ends of the crushing shafts 35. Thereby, the lump etc. which are contained in the thrown-in slip | slipping can be crushed below the space | interval of the crushing blade 35a.

Instead of the crusher 35, a screen that prevents passage of a large-diameter slot having a certain diameter or more and an opening that discharges the blocked large-diameter slot to the outside may be provided.
The hopper 24 includes a front vertical surface plate 24a extending up and down, an inclined guide plate 24b on the right and left side surfaces and the rear surface inclined at the other three surfaces from the upper outer side to the lower inner side and connected to the upper opening of the frame body 22. 24c, 24d, an upper left side inclined guide plate 24b, and vertical surface plates 24e, 24f raised from the rear side inclined guide plate 24d. The upper side of the right side inclined guide plate 24c and the front vertical The right side surfaces of the face plate 24a and the facing plate 24f are notched at the inclined sides, so that the charging space extending from the upper surface to the right side surface is expanded.

  A rectifying discharge port 26 extending rearward is provided at the lower portion of the frame body 22. The rectifying and discharging port 26 is formed in a horizontally long shape extending from the position immediately below the opening of the frame body 22 to the downstream side along the conveying direction, and extends rearward along the left and right sides of the lower opening of the frame body 22. A support plate 27a to be arranged, a connecting member 27b for connecting the left and right rectifying support plates 27a to each other, and a rigid synthetic rubber elastic guide plate 27c extending downward from the rectifying support plates 27a and approaching the conveyor belt 3d. The rectifying and discharging member 27 is configured as described above. The elastic guide plate 27c prevents the conveyor belt 3d from jumping up due to the impact of the displacement dropped from the lower opening of the frame main body 22 onto the conveyor belt 3d. It is configured so as to be prevented from collapsing and to be stably and smoothly transported on the transport belt 3d.

  The slip rectifier 2 is a separate body on the left and right sides, a plurality of support legs 41 installed on the left and right conveyor frames 3a, a connection frame 42 for connecting the upper ends of the front and rear support legs 41, and this connection. An elastic rectifying plate 43 made of hard synthetic rubber that hangs down from the frame 42 or close to the surface of the conveying belt 3d, and further holds the slip rectified by the elastic guide plate 27 of the rectifying and discharging member 27. Prevents slippage and promotes stable transport.

The conveyor support 9 is composed of a plurality of portal frames 9a with height adjusting tools 9b arranged at predetermined intervals in the transport direction between the conveyor frame 3a and the roadbed.
In the above configuration, when the inverts excavated from the roadbed are introduced into the transport conveyor 3 in the middle of the transport path of the transport conveyor 3, the first work vehicle 4 is moved to the loading position, and the movement of the first work vehicle 4 and The first work vehicle 4 and the slip loading device 1 are arranged at arbitrary positions by turning, raising and lowering by the work arm 5, adjusting the pitching angle by the vertical rotation device 16 and the yawing angle by the horizontal rotation device 21. The horizontally elongated rectifying discharge port 26 of the loading device 1 is arranged on the conveying belt 3d of the conveying conveyor 3 along the conveying direction. At the same time, the conveyor support 9 is loaded on the lower part of the conveyor 3 at the position where the slip loading device 1 is installed, and the slip rectifier 2 is installed on the transport conveyor 3 on the downstream side of the position where the slip loading device 1 is installed. At this time, even when the width of the tunnel T is narrow, the angle formed by the work arm 5 and the transfer conveyor 3 is narrowed by adjusting the yawing angle by the horizontal rotation device 21, thereby conveying the first work vehicle. It can be arranged close to the conveyor 3, and the space in the tunnel T can be used effectively.

  Next, when the slip is put into the hopper 24 by the bucket 8 of the second work vehicle 6, it is discharged from the hopper 24 through between the crushing shafts 35 in the frame main body 22. Are crushed by the crushing blade 35a and discharged to the straightening outlet 26. In the rectifying discharge port 26, the elastic guide plate 27c suspended along the conveying belt 3d so that the lower end approaches the conveying belt 3d prevents the conveying belt 3d from jumping up and prevents the jumping or collapsing of the slip. Since the gaps are continuously stacked in a mountain range along the center of the conveyance belt 3d, the gaps added in the middle can be stably conveyed. Further, at the loading position of the transfer conveyor 3, the load and impact at the time of loading are supported by the conveyor support 9 and are alleviated. Further, on the downstream side of the loading position, the slippage is further held by the pair of left and right elastic rectifying plates 43 that are suspended by the slip rectifier 2 close to the surface or the surface of the transport belt 3d. Is prevented.

It is a side surface fragmentary sectional view showing an embodiment of a gap loading device concerning the present invention. It is a top view of the same loading device. It is BB sectional drawing shown in FIG. It is AA sectional drawing shown in FIG. It is a side view of the slip loading equipment provided with the slip loading device. It is CC sectional drawing shown in FIG. It is a whole top view of the same loading equipment. It is a cross-sectional view which shows the working state of the 2nd work vehicle in the same loading equipment. It is a cross-sectional view which shows the working state of the 1st work vehicle in the same loading equipment.

Explanation of symbols

T tunnel 1 slip loading device 2 slip rectifier 3 transport conveyor 3d transport belt 4 first work vehicle 4c swivel 5 work arm 6 second work vehicle 8 bucket 9 conveyor support 11 support frame 12 horizontal support shaft 16 vertical swing device DESCRIPTION OF SYMBOLS 21 Horizontal rotation apparatus 22 Frame main body 23 Crusher 24 Hopper 25 Exciter 26 Rectification discharge port 27 Rectification discharge member 27c Elastic guide plate 31 Vertical axis 34 Horizontal rotation cylinder 35 Crushing shaft 35a Crushing blade 36 Crushing rotation drive device 43 Elastic rectifier

Claims (5)

A slip loading device that is detachably supported at the tip of a work arm that is pivotable and can be raised and lowered on a work vehicle, and loads a slip in the middle of the transport path of the transport conveyor,
At the tip of the working arm, a frame body is provided via a horizontal turning device that can turn around the vertical axis.
A hopper is provided at the top of the frame body, and a horizontally elongated rectifying discharge port is provided at the bottom of the frame body.
A slip loading device characterized in that the rectifying discharge port is arranged along the conveyor conveyance direction by the horizontal rotation device. The shear loading device according to claim 1, wherein a crusher for crushing a large diameter shear is provided in the frame body. The slip loading device according to claim 1 or 2, wherein a pair of left and right elastic guide plates that hold the slip along the both sides in the length direction are provided at the rectifying discharge port. The shear loading device according to any one of claims 1 to 3, wherein a vibration exciter is attached to the hopper. A conveyor support for supporting the transport conveyor from below is provided at the lower portion of the transport conveyor at the installation position of the slip loading device according to any one of claims 1 to 4.
A slip loading device having a pair of right and left flow straightening plates for guiding and holding a slip is installed on a transport conveyor downstream in the transport direction of the installation position.

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