JP6689148B2 - Soundproof board replacement device - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a device for exchanging a soundproof plate material that constitutes a soundproof wall in an elevated railway track.

Noise generated when a railroad vehicle travels on a track includes rolling noise generated from vibrations of wheels and rails, current collection noise generated from pantographs, vehicle aerodynamic noise generated from the action of a vehicle and air flow, and viaduct. Structure sound generated from vibration of the structure such as To prevent such noise from propagating outside the track, a soundproof wall is provided on the side of the track.
For example, a soundproof wall as described in Patent Document 1 is formed by stacking a plurality of soundproof plate members in a plurality of vertically arranged columns between a plurality of columns that are erected at intervals. Has been done.

JP 2005-60975 A

  By the way, since the plurality of soundproof plate members constituting the soundproof wall are normally exposed to the vibration and wind pressure of the railroad vehicle passing through the railroad track, they may need to be replaced. The conventional work of exchanging the soundproofing plate material has been performed, for example, by using an aerial work vehicle or a crane vehicle from a side road outside the track. However, there is a problem that it is difficult to replace the soundproof plate material in a place where a space for raising and lowering the soundproof plate material cannot be secured outside the track.

  An object of the present invention is to provide a soundproof plate material exchanging device that enables the work of exchanging the soundproof plate material regardless of whether or not there is a space outside the track where the soundproof plate material can be raised and lowered.

In order to achieve the above object, the present invention provides
A replacement device for a plurality of soundproof plate materials stacked vertically, which constitutes a soundproof wall provided along a track,
A cylindrical base portion installed on the floor of the track and opened upward,
A rotating column that is inserted into the base portion and is rotatable about an axis while protruding upward from the base portion,
An arm portion that is provided so as to project laterally from the upper end portion of the rotating column and has a distal end portion that is expandable and contractable,
An auxiliary leg portion that is provided from the floor portion to the central portion in the length direction of the arm portion and is configured to be capable of traveling on the floor portion,
A winch that allows a wire for suspending the soundproof plate material to be paid out and wound up along the arm portion.

According to the soundproof plate material exchanging device having such a configuration, the arm portion is provided so as to project laterally from the upper end portion of the rotating column that is inserted into the base portion and rotatable about the axis. , It is possible to rotate the rotating column as the axis of rotation. Therefore, the soundproofing plate material can be lifted or lowered at any position in the turning direction of the arm portion. Further, since the tip of the arm portion is formed to be expandable and contractible, the soundproofing plate material can be lifted or lowered at an arbitrary position in the extending and contracting direction of the tip.
Further, since the auxiliary leg portion configured to be capable of traveling on the floor portion is provided from the floor portion to the central portion in the longitudinal direction of the arm portion, when the arm portion is swung to move the soundproofing plate material or when the arm portion is moved, Even when the center of gravity moves when the tip end portion is expanded and contracted to move the soundproof plate material, the balance of the entire apparatus can be maintained.
From the above, for example, if you cannot secure a space outside the railroad where you can use a work platform or a crane, and if you cannot secure a space outside the railroad where you can raise and lower the soundproofing plate, rotate the arm part. By moving the soundproofing plate material, the soundproofing plate material can be replaced in the track.
Also, although it is not possible to secure a space for using aerial work vehicles and crane trucks outside the track, if you can secure a space for raising and lowering the soundproofing plate material outside the track, expand and contract the tip of the arm part, It is possible to perform the replacement work by moving the soundproof plate material between the inside and the outside of the track.

Also, preferably,
The rotating column and the auxiliary leg are connected to each other, and the rotating column is further provided with a connecting portion that is rotatable about the rotating shaft.
According to the soundproofing plate material exchanging device having such a configuration, since the rotating column and the auxiliary leg are connected by the connecting portion, it is possible to maintain a constant distance between the rotating column and the auxiliary leg. Further, since the connecting portion is rotatable about the rotation column as the rotation axis, the distance between the rotation column and the auxiliary leg portion can be kept constant even when the arm portion is rotated. Therefore, the soundproofing plate material can be stably hung even when the arm portion turns or when the tip end portion of the arm portion expands and contracts.

Also, preferably,
The connection part may include a winch installation part on which the winch is installed.
According to the soundproof plate material exchanging device having such a configuration, since the connecting portion connecting the rotating column and the auxiliary leg portion has the winch installation portion, the winch can be installed below the arm portion. Further, the winch installation section also turns in accordance with the turning of the arm section. Therefore, the wire can be easily paid out or wound up along the arm portion, so that the work of exchanging the soundproofing plate material is facilitated.

Also, preferably,
The auxiliary leg has a plurality of main body legs arranged so as to avoid an area through which the wire passes.
According to the soundproofing plate exchanging device having such a configuration, the plurality of main body legs arranged so as to avoid the region through which the wire passes prevents the unwinding and winding of the wire from being hindered, and the balance of the entire device is prevented. It becomes easier to keep

  According to the present invention, it is possible to replace the soundproof plate material regardless of whether or not there is a space outside the track where the soundproof plate material can be raised and lowered.

(A) is a schematic diagram showing a line provided with a soundproof wall, and (b) is a perspective view showing the soundproof wall. It is a front view which shows the exchange device of a soundproof board material. It is a side view which shows the replacement device of a soundproof board material. It is a perspective view which shows the rotation mechanism in the replacement apparatus of a soundproof board material. It is a figure which shows an example of the replacement work of a soundproof board material. It is a figure which shows an example of the replacement work of a soundproof board material.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, various technically preferable limitations for carrying out the present invention are attached to the embodiments described below, but the technical scope of the present invention is not limited to the following embodiments and illustrated examples. Absent.

[Explanation of the soundproof wall 10]
In FIG. 1A, reference numeral 1 indicates a line. The railroad track 1 is provided on a viaduct 2, and a soundproof wall 10 that suppresses the propagation of noise to the outside of the railroad track is provided on the side of a track 3 equipped with rails and sleepers. The soundproof wall 10 is continuously provided along the extending direction of the line 1.

As shown in FIGS. 1 (a) and 1 (b), the soundproof wall 10 includes a plurality of soundproof plate members 12 provided between a plurality of pillars 11 and 11 which are erected at a distance from each other, and which are buffered. It is formed by vertically stacking with the material 13 interposed.
Further, the soundproof wall 10 in the present embodiment further includes a soundproof ceiling portion 14 protruding toward the track 3 on the upper end portion thereof.

  The column 11 is formed with a concave guide groove 11c along which the side end of the soundproof plate 12 is inserted along the length direction of the surface of the soundproof plate 12 side. In this embodiment, the web 11a and A shaped steel material (H-shaped steel in this embodiment) having two flanges 11b and 11b is adopted.

  The soundproof plate member 12 is, for example, a plate member made of prestressed concrete, that is, a PC plate, and is placed between two columns 11 and 11 which are erected at a distance from each other along the extending direction of the track 1. It is provided across. Further, generally, a plurality of (for example, three) soundproofing plate members 12 are vertically stacked with a cushioning member 13 interposed.

The soundproof ceiling part 14 is provided so as to horizontally project from the upper end of the upper soundproof plate member 12 toward the line 1.
The soundproof ceiling part 14 includes a ceiling plate material 14a made of a PC plate as with the soundproof plate material 12, and a bracket 14b fixed to the upper end portion of the flange 11b on the track 1 side of the pillar 11 and supporting the ceiling plate material 14a.
As shown in FIG. 1 (b), the bracket 14b has a main body portion having an inverted T-shaped cross section, and the ceiling plate member 14a is provided on one side and the other side of the inverted T-shaped central vertical portion as a boundary. The side edges can be placed.

[Description of Exchange Device 20]
Next, the exchanging device 20 for exchanging the plurality of soundproof plate members 12 in the soundproof wall 10 configured as described above will be described.
As shown in FIGS. 2 to 4, the exchange device 20 includes a base portion 21, a rotating column 22, an arm portion 26, a diagonal member 31, an auxiliary leg portion 32, a connecting portion 39, a winch 43, and a winch 43. Equipped with.

The base part 21 is installed on the floor of the viaduct 2, and has a cylindrical main body cylindrical part 21a (which may be a rectangular cylinder) that is open upward and a lower end part of the main body cylindrical part 21a. It has a base plate 21b provided and a plurality of ribs 21c provided between the main body tubular portion 21a and the base plate 21b.
The base plate 21b is installed on the floor of the viaduct 2 by using anchor bolts (not shown) embedded in the floor of the viaduct 2.

The rotating column 22 is inserted into the main body cylindrical portion 21a of the base portion 21 and is rotatable about its axis while protruding above the base portion 21.
The rotating column 22 in the present embodiment includes a lower first column member 23, which is vertically connected, an intermediate second column member 24, and an upper third column member 25.
In addition, the number of column members forming the rotating column 22 can be appropriately changed within a range that can correspond to the height of the soundproof wall 10 and does not hinder the replacement of the soundproof plate member 12.

The first pillar member 23 located on the lower side is inserted into the main body cylindrical portion 21a of the base portion 21, and is formed in a cylindrical shape or a cylindrical shape. The diameter of the first column member 23 is set to be substantially equal to or slightly smaller than the inner diameter of the main body tubular portion 21a.
The first pillar member 23 is used to connect the annular stopper 23a provided on the outer peripheral surface so as to project in the direction orthogonal to the axial direction and the second pillar member 24 provided at the upper end portion. A flange 23b is provided.

  The second pillar member 24 positioned in the middle is a flange 24a provided at the lower end portion and used for connection with the first pillar member 23, and a flange provided at the upper end portion and used for connection with the third pillar member 25. 24b.

The third pillar member 25 located on the upper side is provided with a flange 25a provided at a lower end portion and used for connecting with the second pillar member 24, and a connecting plate 25b provided at an upper end portion and used for connecting with the arm portion 26. And a plurality of pulley holding portions 25c for holding the pulleys on which the wires 44 fed from the winch 43 are hung.
The pulley holding portion 25c is provided at the position of the lower end portion of the third column member 25 and the position of the longitudinally intermediate portion of the arm portion 26 extending in the horizontal direction.

  The lower first pillar member 23, the middle second pillar member 24, and the upper third pillar member 25 are formed by aligning the adjacent flanges 23b, 24a, 24b, 25a and tightening them with bolts and nuts. It is connected. The flanges 23b, 24a, 24b, 25a are reinforced by ribs.

The arm portion 26 is provided so as to project laterally from the upper end portion of the rotary column 22, and has a distal end portion that is expandable and contractable. The connecting plate 27, the plurality of extension portions 28, and the arm portion 26 base end are provided. A pulley holding portion 29 located on the side of the arm and a pulley holding portion 30 located on the tip side of the arm portion 26 are provided.
The arm portion 26 is made of an H-shaped steel material having a web and two flanges, and is provided on the upper end portion of the rotating column 22 in a posture in which the flanges are arranged vertically.
The connection plate 27 is provided on the lower surface of the base end portion of the arm portion 26, and together with the connection plate 25b provided on the upper end portion of the third column member 25, is connected by tightening bolts and nuts. .

The extension portion 28 of the arm portion 26 is formed into a rectangular tube shape, and the distal end portion of the arm portion 26 is passed through the extension portion 28. The extension portion 28 is slidable along the length direction of the arm portion 26. ing.
The extension portion 28 is fixed to the arm portion 26 during the replacement work of the soundproof plate material 12. The fixation is performed by a plurality of fixing bolts 28 a screwed from the upper surface side and the lower surface side of the extension portion 28. There is. Further, on the upper surface side and the lower surface side of the arm portion 26, a plurality of bolt holes arranged at intervals in the length direction of the arm portion 26 are formed, and the fixing bolt 28a is placed in the bolt hole at any position. It can be screwed. By changing the position at which the fixing bolt 28a is screwed, the tip of the arm portion 26 can be expanded and contracted.

The pulley holding portion 29 on the base end side is provided on the lower surface of the arm portion 26, and holds the pulley on which the wire drawn from the plurality of pulley holding portions 25c of the third pillar member 25 is hooked.
The pulley holding portion 30 on the tip end side is provided on the lower surface of the extension portion 28, and holds the pulley on which the wire fed from the pulley holding portion 29 on the base end side is hooked. The pulley holding portion 30 on the tip end side can change its position following the sliding movement of the extension portion 28.

  The diagonal member 31 is bridged between the third pillar member 25 and the arm portion 26 to reinforce the corner where the third pillar member 25 and the arm portion 26 intersect. The diagonal member 31 is provided from the vicinity of the upper pulley holding portion 25c of the third pillar member 25 to the vicinity of the pulley holding portion 29 on the base end side of the arm portion 26, and is in a state parallel to the wire. .

  The auxiliary leg portion 32 is provided from the floor portion of the viaduct 2 to the central portion in the length direction of the arm portion 26, and is configured to be able to travel on the floor portion. The auxiliary leg portion 32 includes a horizontal beam 33 and a plurality (two) of main bodies. It is provided with legs 34, 34 and a traveling means 35.

The horizontal beam 33 is provided on the upper surface of the central portion in the length direction of the arm portion 26, and is arranged so as to project to both sides with respect to the arm portion 26. The horizontal beam 33 is made of a shaped steel material having a web and two flanges, and is provided on the upper surface of the arm portion 26 in a posture in which the flanges are arranged vertically.
Further, on each of the lower surfaces of the horizontal beam 33 on both end sides in the length direction, a cylindrical plugged portion 33a protruding downward is provided.

The plurality of main body legs 34, 34 are composed of an upper first leg member 34a and a lower second leg member 34b connected in the vertical direction.
The upper end portion of the upper first leg member 34 a is inserted into the tubular plug-in portion 33 a of the horizontal beam 33. For this reason, the plurality of main body leg portions 34, 34 are arranged so as to avoid the region through which the wire 44 passes. Further, the lower end portion of the first leg member 34a is formed in a tubular shape.
The upper end of the lower second leg member 34b is inserted into the cylindrical lower end of the first leg member 34a. Further, the lower end portion of the second leg member 34b is formed in a tubular shape.

The traveling means 35 is a portion that is provided at the lower ends of the plurality of main body legs 34, 34 and is in contact with the floor of the viaduct 2 in the auxiliary leg 32. The plurality of casters 36, the mounting plate 37, and the height adjustment unit And a part 38.
The plurality of casters 36 are mounted side by side on the lower surface of the mounting plate 37.

Height adjusting portions 38 are provided on the upper surface of the mounting plate 37 so as to correspond to the positions of the plurality of main body leg portions 34, 34.
These height adjusting parts 38 have an adjusting bolt 38a protruding upward, and a nut 38b with a handle screwed to the adjusting bolt 38a.
The upper end portion of the adjusting bolt 38a in a state in which the nut 38b with a handle is screwed is inserted into the cylindrical lower end portion of the second leg member 34b.
The second leg member 34b with the upper end portion of the adjusting bolt 38a inserted is in a state where the lower end surface thereof is in contact with the nut 38b with the handle. Then, by gripping and rotating the handle of the nut with handle 38b, the nut with handle 38b can be moved up and down along the adjustment bolt 38a. Thereby, the height of the main body leg portion 34 can be adjusted, and by extension, the inclination of the arm portion 26 can be adjusted and kept horizontal.

The connecting part 39 connects the rotating column 22 and the auxiliary leg part 32, and is rotatable around the rotating column 22 as a rotation axis. The main body plate 40, the tubular part 41, and the leg material holding part 42. And
The main body plate 40 is arranged between the rotating column 22 and the auxiliary leg portion 32, and the upper surface of the main body plate 40 functions as a winch installation portion on which the winch 43 is installed.
The tubular portion 41 is provided at the end of the main body plate 40 on the side of the rotating column 22, and the first column member 23 of the rotating column 22 is passed through the inside thereof. The inner diameter of the tubular portion 41 is set to be substantially equal to the inner diameter of the main body tubular portion 21a of the base portion 21.
Further, the lower end portion of the tubular portion 41 is in contact with the upper end portion of the main body tubular portion 21a when the first pillar member 23 is passed through the inside, and the upper end portion is the first pillar member. It is in a state of being in contact with the stopper 23a of 23.
The leg material holding portion 42 is formed in a lattice frame shape by using a plurality of angle members 42a, 42b, 42c, and the plurality of main body leg portions 34 in the auxiliary leg portion 32 are opened with respect to the openings of the lattice frame. , 34 are passed through and held.

The winch 43 is an electric winch, and a wire 44 for suspending the soundproof plate material 12 can be paid out and wound up along the arm portion 26. Then, as described above, the winch 43 is installed on the upper surface of the main body plate 40 of the connecting portion 39 that functions as the winch installing portion.
The wire 44 is hung on the upper and lower two pulley holding portions 25c of the third pillar 25, the pulley holding portion 29 on the base end side of the arm portion 26, and the pulley holding portion 30 on the lower surface of the extension portion 28.

  The exchanging device 20 configured as described above can be transported / carried in the track in a state where the parts are separated, and can be assembled by connecting the parts on the track 1.

[Description of Replacement Work of Soundproof Plate Material 12 by Replacement Device 20]
When replacing the soundproof plate material 12, first, anchor bolts are buried in the floor of the viaduct 2.
Subsequently, the ceiling plate material 14a of the soundproof ceiling portion 14 is moved to secure the installation space for the exchange device 20. Then, the exchanging device 20 in a state where each part is disassembled is carried into the inside of the line of the soundproof wall 10, and the exchanging device 20 is assembled in the secured installation space.

After the replacement device 20 is assembled, a suspending member (not shown) is attached to the upper soundproofing plate member 12 of the plurality of soundproofing plate members 12, and the hanging member is hung from the tip of the arm portion 26. The tip of the wire 44 is connected.
Subsequently, the wire 44 is wound by the winch 43, and the soundproof plate member 12 in the upper stage is lifted while maintaining the state where the wire 44 is stretched.

Here, in a place where it is not possible to secure a space outside the track where an aerial work vehicle or a crane truck can be used, and where a space for raising and lowering the soundproofing plate material cannot be secured outside the track, as shown in FIG. The upper soundproof plate member 12 is hung straight up along the guide groove 11c of the support column 11 in a state where the portion 26 is not extended.
Then, when the soundproof plate member 12 on the upper stage is lifted higher than the support column 11, the arm portion 26 is swung 90 degrees toward the track 1 side and lowered to the space beside the track 1.
The middle and lower soundproof plate members 12 are similarly lifted up and placed in the space for raising and lowering the soundproof plate members 12 on the side of the track. Note that the cushioning material 13 provided between the upper and lower soundproof plate materials 12 is also removed at the same time.

When the removal of the plurality of soundproof plate members 12 is completed, the new soundproof plate member 12 is lifted from the space beside the track, and the arm portion 26 is swung to a position above the adjacent columns 11 and 11. After that, the new soundproof plate member 12 is lowered along the guide grooves 11c and 11c of the adjacent columns 11 and 11.
The same work is performed on the middle and upper soundproof plate members 12 so that the soundproof plate members 12 are stacked in order along the adjacent columns 11. A new cushioning material 13 is provided between the floor portion of the viaduct 2 and the soundproof plate material 12 in the lower stage, or between the soundproof board materials 12 and 12 that are vertically adjacent to each other. The cushioning material 13 may be installed in a state of being attached to the soundproof plate material 12 in advance.

  As described above, in a place where the work vehicle or crane truck cannot be used outside the track and the space for raising and lowering the soundproofing plate cannot be secured outside the track, the soundproofing plate 12 can be replaced. Can be done.

In addition, in the case where a space for raising and lowering the soundproof plate member 12 can be secured outside the railroad track, for example, under the elevated structure, as shown in FIG. The plate material 12 is hung up along the guide groove 11c of the column 11.
At this time, it is desirable to lift the soundproof plate material 12 while assisting a worker so that the soundproof plate material 12 does not swing outside the track.

Then, when the upper soundproof plate member 12 is lifted higher than the column 11, the upper soundproof plate member 12 is lowered to the space for raising and lowering the soundproof plate member 12 outside the track, as shown in FIG. 6B.
The middle and lower soundproof plate members 12 are similarly lifted up and placed in the space for raising and lowering the soundproof plate members 12 outside the track. Note that the cushioning material 13 provided between the upper and lower soundproof plate materials 12 is also removed at the same time.

When the removal of the plurality of soundproofing plate members 12 is completed, the new soundproofing plate member 12 at the lower stage is lifted up from the space for raising and lowering the soundproofing plate members 12 outside the track. After that, with the help of a worker, the lower end portion of the lower soundproof plate member 12 is made to enter the guide grooves 11c, 11c of the adjacent columns 11, 11. Then, with the help of the worker, the new lower-stage soundproof plate member 12 is lowered along the guide grooves 11c, 11c of the adjacent columns 11, 11 while gradually raising the lower-stage soundproof plate member 12.
The same work is performed on the middle and upper soundproof plate members 12 so that the soundproof plate members 12 are stacked in order along the adjacent columns 11.

  As described above, when the space for using the aerial work vehicle or the crane vehicle cannot be secured outside the track, but when the space for raising and lowering the soundproof plate 12 can be secured outside the track, the replacement work of the soundproof plate 12 is performed. Can be done.

1 Track 2 Viaduct 2a Floor 3 Track 10 Soundproof Wall 11 Support 12 Soundproof Plate 20 Exchanger 21 Base 22 Rotating Pillar 26 Arm 28 Extension 30 Pulley Holding 32 Auxiliary Leg 33 Horizontal Beam 34 Main Body 35 Traveling Means 36 Caster 39 Connecting Part 40 Body Plate 41 Cylindrical Part 42 Leg Material Holding Part 43 Winch 44 Wire

Claims (4)

A replacement device for a plurality of soundproof plate materials stacked vertically, which constitutes a soundproof wall provided along a track,
A cylindrical base portion installed on the floor of the track and opened upward,
A rotating column that is inserted into the base portion and is rotatable about an axis while protruding upward from the base portion,
An arm portion that is provided so as to project laterally from the upper end portion of the rotating column and has a distal end portion that is expandable and contractable,
An auxiliary leg portion that is provided from the floor portion to the central portion in the length direction of the arm portion and is configured to be capable of traveling on the floor portion,
A soundproof plate material exchanging device, comprising: a winch capable of paying out and winding a wire for suspending the soundproof plate material along the arm portion.   The soundproof plate material replacement device according to claim 1, further comprising a connecting portion that connects the rotating pillar and the auxiliary leg portion and is rotatable around the rotating pillar as a rotation axis.   The soundproof plate material exchanging device according to claim 2, wherein the connecting portion has a winch installation portion on which the winch is installed.   The said auxiliary | assistant leg part has a several main-body leg part arrange | positioned avoiding the area | region which the said wire passes, The exchange apparatus of the sound-proof board material as described in any one of Claim 1 to 3 characterized by the above-mentioned.

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