JP2011047209A - Tail-piece truck and method of extending continuous belt conveyor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tail-piece truck by which a continuous belt conveyor can be efficiently extended by a small number of workers; and to provide a method of extending the continuous belt conveyor. <P>SOLUTION: The tail-piece truck 1 is provided with a base 5 for placing a tail piece 4, and a carrying device 11 to take extending frame members 10 to a predetermined position. The extending frame members 10 include frames 15, carrier rollers 16 and return rollers 17, which are assembled outside a tunnel 2 in advance. The carrying device 11 is provided with an elevating platform 20 to vertically move the extending frame members 10, and a travelling part 21 for travelling on the base 5. The carrying device 11, having the extending frame members 10 thereon, is moved on the base 5 to arrange the extending frame members 10 in a space S between a return-side belt 9a and a feeding-side belt 9b. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a tail piece carriage on which a tail piece portion of a continuous belt conveyor capable of extending a belt is placed and a method for extending the continuous belt conveyor.

  Conventionally, in a tunnel construction site, a continuous belt conveyor has been used as one of earth and sand discharging facilities for discharging earth and sand generated by excavation of natural ground.

  For example, in Patent Document 1, a tail piece portion that is installed near a face in a tunnel and for folding a belt, a tail piece cart for advancing the tail piece portion in accordance with the excavation progress of the tunnel, and a belt are provided. There is disclosed a continuous belt conveyor provided with a cassette unit that folds back and stores. This is to extend the continuous belt conveyor by advancing the tail piece part in accordance with the excavation progress of the tunnel, feeding the belt from the cassette part, and adding a new belt conveyor frame. The belt conveyor frame is added by transporting its constituent parts such as a frame, a carrier roller, a return roller and the like to the tailpiece carriage and attaching them to the continuous belt conveyor on the tailpiece carriage in a predetermined order.

Japanese Patent Laid-Open No. 2003-176692

However, the continuous belt conveyor described in Patent Document 1 has the following problems because a belt conveyor frame to be newly added is assembled on the tailpiece carriage as described above.
(1) Since the scaffold for assembling the belt conveyor frame is narrow and there is no space for orderly arranging the components, work efficiency is poor.
(2) There is no facility for supporting parts such as frames during assembly work, and most of the transportation work and assembly work must be performed manually with the crane, such as transporting these parts to the desired location with a crane. Therefore, work efficiency is bad.
(3) Since most of the work is performed manually, many workers are required, and the extension work of the continuous belt conveyor cannot be performed in parallel with the incidental work accompanying tunnel excavation. For this reason, a construction period will become long.

  Therefore, the present invention has been made in view of the above points, and an object of the present invention is to provide a tailpiece carriage and a method of extending a continuous belt conveyor that can efficiently extend a continuous belt conveyor with a small number of people. .

In order to achieve the above object, the present invention is a tail piece carriage on which a tail piece portion of a continuous belt conveyor is placed,
A stand for mounting the tailpiece part;
When extending the continuous belt conveyor, while supporting an extension frame member to be newly attached to the belt conveyor body, the extension frame member is placed between the feed belt and the return belt of the continuous belt conveyor. And a conveying device for conveying.

  According to the present invention, since the conveyance device for conveying the extension frame member between the sending side belt and the return side belt is provided while supporting the extension frame member, the extension frame member can be moved in a short time. Can be transported to a predetermined place. Further, by using the transfer device, the transfer work can be performed with a small number of people. Thereby, since another worker can perform another work, the construction period can be shortened. Furthermore, since it is possible to attach the extension frame member that has been transported and stored in advance to the tailpiece carriage, it is not necessary to assemble the extension frame member at the installation site, and the installation work can be performed efficiently in a short time. be able to.

  Further, in the present invention, the transfer device is movable along the guide unit, a traveling unit that is movable on the gantry, a guide unit that is connected substantially vertically to an end of the traveling unit, Since the extension frame member can be accurately arranged at a predetermined position, the attachment to the belt conveyor main body is facilitated and the work can be performed. Efficiency is improved.

  Further, according to the present invention, the conveying device installed on the gantry and stocking the extension frame member, and the transfer device while suspending the extension frame member placed on the stock table It is good also as providing the suspension apparatus for conveying to.

According to the present invention, since the extension frame member can be stocked on the tailpiece carriage, it is possible to save the trouble of conveying the extension frame member to the tailpiece carriage when extending the continuous belt conveyor.
Moreover, since the suspension device for moving the stocked extension frame member is provided, a crane car or a unic car becomes unnecessary. Thereby, since other work can be performed using a space that has conventionally been installed with a crane vehicle or the like, the work period can be shortened.

In addition, the present invention supports a frame for placing the tail piece portion of the continuous belt conveyor and an extension frame member for newly attaching to the belt conveyor body when extending the continuous belt conveyor, In the method for extending a continuous belt conveyor using a tailpiece carriage, the conveying device for conveying the frame member for extension between a feeding side belt and a return side belt of the continuous belt conveyor,
A moving step of moving the tailpiece part in a direction in which the continuous belt conveyor is extended to secure a space for newly attaching the extension frame member;
A placing step of placing the extension frame member on the transport device;
An arrangement step of conveying the extension frame member by the conveyance device and arranging the extension frame member in the space;
A connecting step of connecting the extension frame member and the belt conveyor body.

According to the present invention, since the extension frame member is transported by the transport device, it can be transported efficiently by a small number of people as compared with the case of transporting manually. Moreover, since another worker can perform another work, the construction period can be shortened.
Furthermore, since it is possible to attach the extension frame member that has been transported and stored in advance to the tailpiece carriage, it is not necessary to assemble the extension frame member at the installation site, and the installation work can be performed efficiently in a short time. be able to.

  In the present invention, if the extension frame member is stocked in advance on the tailpiece carriage, when extending the continuous belt conveyor, there is no need to individually carry the parts constituting the extension frame member. Save.

  In the present invention, if at least one of the moving step, the placing step, the arranging step, and the connecting step is performed in the tunnel mine in parallel with the incidental work accompanying tunnel excavation, the construction period is greatly increased. It can be shortened.

  ADVANTAGE OF THE INVENTION According to this invention, the extension method of a tail piece trolley | bogie which can extend a continuous belt conveyor efficiently with few people, and a continuous belt conveyor can be provided.

It is a side view of the tail piece cart concerning this embodiment. It is a front sectional view of a tail piece cart according to the present embodiment. It is a top view of the frame member for an extension. It is a side view of a frame member for extension. It is a side view which shows the state which advanced the tail piece part and formed the space between the sending side belt and the return side belt. It is a front sectional view showing a state in which a tail piece is advanced to form a space between a feeding side belt and a returning side belt. It is a front sectional view which shows the state which moved the conveying apparatus on the overhanging bracket. It is a front sectional view which shows the state which suspended the extension frame member with the suspension apparatus. It is a side view which shows the state which mounts the frame member for an extension on the raising / lowering stand of a conveying apparatus. It is a front sectional view which shows the state which mounts the frame member for an extension on the raising / lowering stand of a conveying apparatus. It is a side view which shows the state which has arrange | positioned the frame member for an extension between the sending side belt and the return side belt. It is a front sectional view showing a state in which the extension frame member is disposed between the feed side belt and the return side belt. It is a side view which shows the state which raised the raising / lowering base of the conveying apparatus, and installed the frame member for an extension in the predetermined height position. It is a front sectional view which shows the state which raised the raising / lowering base of the conveying apparatus, and installed the frame member for an extension in the predetermined height position. It is the side view which lowered the elevator stand and made the belt rotatable. It is the front sectional view which lowered the elevator stand and made the belt rotatable.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

1 and 2 are a side view and a front sectional view showing a state in which the tailpiece cart 1 according to the present embodiment is installed in the tunnel 2, respectively.
As shown in FIGS. 1 and 2, the tailpiece carriage 1 includes a pedestal 5 for placing the tailpiece portion 4 of the continuous belt conveyor 3, an endless track vehicle 6 for running the pedestal 5, and a continuous belt. When the conveyor 3 is extended, a transfer device 11 for transferring the extension frame member 10 newly attached to the belt conveyor body 8 to a predetermined position, and a stock table 12 for stocking the extension frame member 10. Then, while hanging the extension frame member 10 placed on the stock table 12, the suspension device 13 for moving to the transport device 11 and the side of the mount 5 are protruded to temporarily expand the work space. And an overhanging bracket 14.

The gantry 5 is made of a plate-like steel plate or the like extending in the axial direction of the tunnel 2 (hereinafter referred to as the tunnel axial direction), and the tail piece portion 4, the transfer device 11, and the stock base 12 are installed on the upper surface. ing.
In addition, although many various facilities are installed around the continuous belt conveyor 3, since it is unnecessary for description of this invention, illustration is abbreviate | omitted.

  The tracked vehicle 6 uses, for example, a crawler that can run on its own. In the present embodiment, a crawler is used, but the present invention is not limited to this, and other mechanisms may be used as long as the platform 5 can be moved forward and backward. You may run with wheels.

3 and 4 are a plan view and a side view of the extension frame member 10, respectively.
As shown in FIG. 3 and FIG. 4, the extension frame member 10 is supported by a pair of left and right frames 15, a bearing unit fixed to the frame 15, a carrier roller 16 for supporting the belt 9, and a frame 15. And a return roller 17 that is supported by a bearing member fixed to the belt and prevents the belts 9 from contacting each other, and is assembled outside the tunnel 2 in advance.

  Holes 18 for inserting bolts are provided at both ends of the frame 15, and are connected to the frame 19 (see FIG. 1) of the existing belt conveyor body 8 by bolts and nuts.

  In this embodiment, since the frame 15 of the extension frame member 10 in the assembled state is simply connected to the frame 19 of the belt conveyor body 8, the attachment work can be performed in a short time.

  The extension frame member 10 is placed on the stock table 12 (see FIG. 2). The stock table 12 is installed above the continuous belt conveyor 3 and can be stocked with a plurality of extension frame members 10 stacked one above the other.

  Moreover, the conveying apparatus 11 is for conveying the frame member 10 for extension to an attachment position, and as shown in FIG.1 and FIG.2, the traveling part 21 for moving on the mount 5, and the traveling part 21 The guide part 33 connected substantially vertically to the end part of the head part, the elevator part 20 that can move along the guide part 33 and raise and lower the extension frame member 10, and the elevator part 20 by raising and lowering it. The transport device 11 has a U-shaped shape with a vertical cross section open on the side.

  Therefore, by rotating the handle 34 and raising and lowering the lifting platform 20 along the guide portion 33, the extension frame member 10 placed on the lifting platform 20 by the suspension device 13 from the stock platform 12 is transferred to the belt conveyor. It can be installed at the height position of the frame 19 of the main body 8.

  The traveling unit 21 forms a U-shaped bottom, and travels on a base plate 21 a in which a guide unit 33 is erected on the side edge and a pair of rails 22 laid on the upper surface of the gantry 5. Wheel 21b, a board 21c to which the wheel 21b is attached, a pair of rails 21d laid on the upper surface of the board 21c, and a wheel 21e attached to the board 21a for traveling on the pair of rails 21d. It is configured.

  The pair of rails 22 are laid on the upper surface of the gantry 5 in a direction orthogonal to the tunnel axis direction (hereinafter referred to as the tunnel width direction), and on the left end in FIG. A stopper 24 that prevents the dropout and plays the role of positioning the extension frame member 10 in the horizontal direction is attached.

  The pair of rails 21d are laid on the upper surface of the substrate 21c in the tunnel axis direction, and stoppers (not shown) for preventing the wheels 21e from dropping off are attached to both ends.

  As described above, since the conveying device 11 has a U-shaped longitudinal section, the conveying device 11 is extended along the rail 22 in the tunnel width direction to extend on the lifting platform 20. The frame member 10 can be inserted from the side between the return side belt 9a and the feed side belt 9b, and the traveling portion 21 can be disposed below the return side belt 9a. Moreover, since the wheel 21b moves on the rail 22, the position of the extension frame member 10 in the tunnel width direction can be finely adjusted.

  Further, by moving the transport device 11 along the rail 21d in the tunnel axis direction, the extension frame member 10 disposed between the return side belt 9a and the feed side belt 9b can be moved in the tunnel axis direction. it can. Further, since the wheel 21e moves on the rail 21d, the position of the extension frame member 10 in the tunnel axis direction can be finely adjusted.

  As shown in FIG. 7 to be described later, the overhanging bracket 14 is a plate-shaped steel plate 26 attached to a side surface 29 opposite to the wall 32 of the gantry 5 with a hinge 25, and attached to the side surface 29 with a hinge 27. 26, and a pair of rails 30 laid on the upper surface of the steel plate 26. The overhanging bracket 14 turns the steel plate 26 upward so as to protrude sideways, rotates the bracket 28 and protrudes sideways, and supports the lower surface of the steel plate 26 with the bracket 28. The upper surface is arranged so that the height of the upper surface is the same as the height of the upper surface of the gantry 5.

  The rail 30 laid on the upper surface of the steel plate 26 is arranged on an extension line of the rail 22 laid on the upper surface of the gantry 5. For this reason, the conveying apparatus 11 can travel on the rail 30 and the rail 22 and move to the overhanging bracket 14.

  Further, a stopper 31 for preventing the wheel 21b of the transport device 11 from dropping off is attached to the right end of the rail 30 in FIG.

  The steel plate 26 and the bracket 28 are in a state along the side surface 29 as shown in FIG.

  Next, a method for extending the continuous belt conveyor 3 using the tailpiece carriage 1 having the above-described configuration will be described in accordance with a work procedure.

  When extending the continuous belt conveyor 3, first, the tail piece portion 4 is advanced (moving step) in order to secure a space for attaching a new extension frame member 10.

FIGS. 5 and 6 are a side view and a front sectional view showing a state in which the tail piece portion 4 is advanced to form a space S between the return side belt 9a and the feed side belt 9b, respectively.
As shown in FIGS. 5 and 6, the endless track 6 is used to move the tail piece 4 forward to the face side, and a new extension frame member 10 is placed between the return side belt 9a and the feed side belt 9b. A space S for mounting is secured. The distance by which the tail piece portion 4 is advanced is slightly larger than the length of the frame 15 of the extension frame member 10 to be added.

  Next, as shown in FIG. 7, the overhanging bracket 14 is overhanged on the side opposite to the wall 32 of the tunnel 2, and the transport device 11 travels on the rail 22 and the rail 30 from the mount 5 onto the overhanging bracket 14. Let

  Next, as shown in FIG. 8, the extension frame member 10 stocked on the stock table 12 is suspended by the suspension device 13 and moved above the overhanging bracket 14.

  Next, as shown in FIGS. 9 and 10, the extension frame member 10 is lowered and placed on the lifting platform 20 of the transport device 11 (placement step).

  Next, as shown in FIGS. 11 and 12, the transfer device 11 is moved to the left in the tunnel width direction, and the extension frame member 10 is arranged in the space S (arrangement step). At this time, the extension frame member 10 is disposed at a predetermined position in the tunnel width direction by bringing the wheel 21b into contact with the stopper 24 provided on the rail 22.

  When the extension frame member 10 is arranged in the space S, the elevation frame 20 is moved up and down so that the extension frame member 10 and the elevation base 20 do not come into contact with the return side belt 9a and the feed side belt 9b. Adjust the height.

  In addition, as described above, the extension frame member 10 is lifted and lowered in advance in consideration of inserting the lifting platform 20 between the return side belt 9a and the feed side belt 9b with the extension frame member 10 placed thereon. When placing on the table 20, it is desirable to adjust the height of the lifting table 20 to be slightly higher than the height of the return side belt 9a. By performing this adjustment, when moving the transport device 11 from the overhanging bracket 14 toward the continuous belt conveyor 3, the extension frame member 10 is simply moved laterally without moving the lifting platform 20 up and down. Can be inserted between the return side belt 9a and the feed side belt 9b, so that it can be moved efficiently in a short time.

  Next, as shown in FIGS. 13 and 14, the lifting platform 20 is raised to raise the frame 15 of the extension frame member 10 to a height at which it can be connected to the frame 19 of the belt conveyor body 8.

  Next, the conveying device 11 is moved back and forth in the tunnel axial direction so that the position of the hole 18 in the frame 15 of the extension frame member 10 matches the position of the hole in the frame 19 of the existing belt conveyor body 8. The frame member 10 is disposed at a predetermined position in the tunnel axis direction.

  Then, both ends of the frame 15 of the extension frame member 10 are connected to the frame 19 of the belt conveyor body 8 with bolts or the like (connection process).

  Since the extension frame member 10 has already been assembled, it is only necessary to connect the frame 15. Further, the overhanging bracket 14 is rotated downward to return to the original state.

  Finally, as shown in FIGS. 15 and 16, the lifting platform 20 supporting the extension frame member 10 is lowered to a height that does not contact the return side belt 9a and the feed side belt 9b even if the belt 9 rotates. (Descent process).

  The continuous belt conveyor 3 can be extended by installing the extension frame member 10 in the space S through the above steps. The belt 9 corresponding to the extension of the continuous belt conveyor 3 is fed out from a belt storage cassette (not shown) installed on the wellhead side.

  According to the tail piece carriage 1 in the present embodiment described above, since the longitudinal cross-sectional shape is a U-shaped and the conveying device 11 is opened on the side, the extension frame member 10 is fed with the return side belt 9a. It can be efficiently transported to the space S between the side belt 9b in a short time. Further, by using the transport device 11, the transport work can be performed with a small number of people. Thereby, since another worker can perform another work, the construction period can be shortened.

  Moreover, since the conveying apparatus 11 is provided with the raising / lowering stand 20, the traveling part 21, and the guide part 33, it can move on the mount frame 5 in a tunnel width direction, a tunnel axial direction, and an up-down direction. Thereby, since the extension frame member 10 can be accurately arranged at a predetermined position, the attachment to the belt conveyor body 8 is facilitated, and the working efficiency is improved.

  In addition, since a plurality of extension frame members 10 can be stocked in advance on the tailpiece carriage 1, it is possible to save the trouble of transporting the extension frame members 10 to the tailpiece carriage 1 when the continuous belt conveyor 3 is extended. . Furthermore, since the suspension device 13 for moving the stocked extension frame member 10 is provided, a crane vehicle or a unic vehicle is unnecessary. Thereby, other work can be performed using a space that has conventionally been installed with a crane vehicle or the like and cannot be used.

  Since the extension frame member 10 is assembled in advance, it is possible to save the trouble of individually transporting the parts constituting the extension frame member 10 to the tailpiece carriage 1. Moreover, it can connect to the belt conveyor main body 8 in a short time.

  If at least any one of the moving process, the placing process, the arranging process, and the connecting process is performed in parallel with the incidental work accompanying the excavation of the tunnel 2, the process can be greatly shortened.

  In the present embodiment, the traveling unit 21 is a mechanism that travels on the rails 22 and 30, but is not limited thereto, and may be any mechanism that can move. May be.

DESCRIPTION OF SYMBOLS 1 Tailpiece trolley 2 Tunnel 3 Continuous belt conveyor 4 Tailpiece part 5 Base 6 Endless track vehicle 8 Belt conveyor main body 9 Belt 9a Return side belt 9b Feeding side belt 10 Extension frame member 11 Conveying device 12 Stock stand 13 Lifting device 14 Overhang bracket 15 Frame 16 Carrier roller 17 Return roller 18 Hole 19 Frame 20 Lifting platform 21 Traveling part 21a Substrate 21b Wheel 21c Substrate 21d Rail 21e Wheel 22 Rail 24 Stopper 25 Hinge 26 Steel plate 27 Hinge 28 Bracket 29 Side surface 30 Rail 31 Stopper 32 Wall 33 Guide part 34 Handle S Space

Claims (6)

A tail piece carriage on which the tail piece of a continuous belt conveyor is placed,
A stand for mounting the tailpiece part;
When extending the continuous belt conveyor, while supporting an extension frame member to be newly attached to the belt conveyor body, the extension frame member is placed between the feed belt and the return belt of the continuous belt conveyor. A tailpiece cart comprising: a conveying device for conveying; The transfer device
A traveling unit movable on the mount;
A guide portion connected substantially vertically to an end of the traveling portion;
The tailpiece cart according to claim 1, further comprising a lifting platform that is movable along the guide portion and that lifts and lowers the extension frame member. A stock stand installed on the mount and for stocking the extension frame member;
The tailpiece cart according to claim 1, further comprising a suspension device for conveying the extension frame member placed on the stock table to the conveyance device while suspending the extension frame member. A frame for placing the tail piece portion of the continuous belt conveyor, and an extension frame member for newly attaching to the belt conveyor body when the continuous belt conveyor is extended, while supporting the extension frame member In a method for extending a continuous belt conveyor using a tailpiece carriage comprising a conveying device for conveying between a feeding belt and a returning belt of the continuous belt conveyor,
A moving step of moving the tailpiece part in a direction in which the continuous belt conveyor is extended to secure a space for newly attaching the extension frame member;
A placing step of placing the extension frame member on the transport device;
An arrangement step of conveying the extension frame member by the conveyance device and arranging the extension frame member in the space;
And a connecting step of connecting the extension frame member and the belt conveyor body. A method of extending a continuous belt conveyor.   5. The method of extending a continuous belt conveyor according to claim 4, wherein the extension frame member is pre-stocked on the tailpiece carriage.   5. The continuous belt according to claim 4, wherein at least one of the moving step, the placing step, the arranging step, and the connecting step is performed in the tunnel mine in parallel with an incidental operation accompanying tunnel excavation. How to extend the conveyor.

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