JP2019217443A - Steel plate washing device - Google Patents

Abstract

To provide a steel plate washing device which can wash plural steel plates in a short time.SOLUTION: A steel plate washing device comprises: a steel plate arrangement part 2; a washing nozzle 21 which sprays washing water in a direction along a first direction of an arrangement surface of the steel plate arrangement part 2 and a direction toward the arrangement surface; a washing nozzle traversing part 12 which moves the washing nozzle 21 in a second direction crossing the direction along the first direction of the arrangement surface of the steel plate arrangement part 2; a washing nozzle vertically moving part 13 which moves the washing nozzle traversing part 12 along the first direction of the arrangement surface of the steel plate arrangement part 2; and a control part 15 which controls actuation of the washing nozzle vertically moving part 13 and the washing nozzle traversing part 12. The control part 15 controls actuation of the washing nozzle vertically moving part 13 and the washing nozzle traversing part 12 so as to repeat traverse movement for moving the washing nozzle 21 along the second direction and vertical movement for moving the washing nozzle 21 along the first direction of the arrangement surface by only a distance which is shorter than a length of the arrangement surface of the steel plate arrangement part 2 in the first direction of the arrangement surface.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a steel plate cleaning apparatus.

  In civil engineering works and revetment works, a sheet pile is installed as a retaining wall in a hole formed by excavating the ground to prevent the wall from collapsing. Such a sheet pile is a long plate-like member, and may be made of wood or concrete, but a sheet steel is generally used. Sheet piles used for earth retaining are pulled out and reused when the need for earth retaining is eliminated, but are washed with water before reuse.

  Conventionally, washing of sheet piles has generally been performed manually. In this case, an operator rubs the surface of the sheet pile with a brush or the like while spraying water on the sheet pile to drop soil or the like attached to the sheet pile. However, sheet piles have a length of several tens of meters, and dozens of sheets are used for one earth retaining operation, so that the work of cleaning the sheet piles after the work was very heavy labor. .

Therefore, an apparatus for cleaning a sheet pile has been developed (see Patent Documents 1 and 2).
In Patent Literature 1, after applying an impact to a sheet pile to drop mud adhering to the sheet pile, high-pressure water is sprayed while conveying the sheet pile along its longitudinal direction by a roller conveyor to wash away the mud attached to the sheet pile. An apparatus is disclosed.
Further, Patent Literature 2 discloses an apparatus for cleaning a sheet pile by rubbing the sheet pile with a brush while spraying high-pressure water on the sheet pile while transporting the sheet pile along a longitudinal direction by a roller conveyor.

JP-A-59-22689 JP-A-1-130772

  However, each of the apparatuses disclosed in Patent Documents 1 and 2 employs a method of cleaning while transporting sheet piles one by one. As described above, a sheet pile is very long. Therefore, when the sheet piles are washed one by one while being sent in the longitudinal direction, it takes a very long time to clean one sheet pile. In addition, since a plurality of sheet piles must be washed, it takes a very long time to wash all sheet piles used for earth retaining at one site.

The present invention has been made in view of the above circumstances, and has as its object to provide a steel sheet cleaning apparatus capable of cleaning a plurality of steel sheets in a short time.

  The apparatus for cleaning a steel sheet according to the present invention includes a steel sheet disposition portion having a disposition surface on which a plurality of steel plates are disposed, and a disposition portion disposed above the steel plate disposition portion, along a first direction of the disposition surface of the steel plate disposition portion. Nozzle for spraying cleaning water in a direction toward the first direction of the arrangement surface and the cleaning nozzle, and the cleaning nozzle is moved in a second direction intersecting the direction along the first direction of the arrangement surface of the steel plate arrangement portion. A cleaning nozzle traversing portion, a cleaning nozzle traversing portion for moving the cleaning nozzle along a first direction of the arrangement surface of the steel plate disposing portion, and controlling operations of the cleaning nozzle traversing portion and the cleaning nozzle traversing portion. A control unit, wherein the control unit moves the cleaning nozzle along the second direction by the cleaning nozzle traversing unit, and the cleaning nozzle traversing unit moves the cleaning nozzle in the first direction of the arrangement surface. Along the first direction of the arrangement surface And controlling the operation of the cleaning nozzle vertical section and the cleaning nozzle horizontal section so as to repeat the vertical movement of moving the cleaning nozzle by a distance shorter than the length of the installation surface of the steel plate mounting section. It is characterized by.

According to the steel sheet cleaning apparatus of the present invention, a plurality of steel sheets are arranged so that the first direction and the longitudinal direction of the arrangement surface of the steel sheet arrangement section are parallel to each other, and the cleaning nozzle is moved by the cleaning nozzle longitudinal section and the cleaning nozzle transverse section. If it is moved, a plurality of steel plates can be washed at the same time. Therefore, many steel plates can be efficiently cleaned.

It is a schematic side view of the steel plate cleaning apparatus 1 of this embodiment. (A) is a schematic front view of the steel plate cleaning device 1 of the present embodiment, and (B) is a schematic plan view of the steel plate cleaning device 1 of the present embodiment. It is a schematic explanatory drawing of the washing | cleaning operation by the washing | cleaning apparatus 1 of the steel plate of this embodiment. It is a schematic explanatory drawing of the washing | cleaning operation by the washing | cleaning apparatus 1 of the steel plate of this embodiment. FIG. 3 is a schematic enlarged explanatory view of a cleaning mechanism 20.

  The steel plate cleaning device of the present embodiment is a device for cleaning a steel plate or the like, and is characterized in that a plurality of steel plates can be cleaned at the same time.

  The steel plate or the like to be cleaned by the steel plate cleaning device of the present embodiment is not particularly limited. For example, sheet piles, piers, lining boards, and the like used for earth retaining in civil engineering work can be cited as steel sheets to be cleaned by the steel sheet cleaning apparatus of the present embodiment. In particular, the apparatus for cleaning a steel sheet according to the present embodiment is suitable for cleaning a long steel sheet such as a sheet pile.

Further, the shape of the steel plate or the like to be cleaned by the steel plate cleaning device of the present embodiment is not particularly limited. For example, a flat steel plate or a general sheet pile (a hat-shaped sheet pile, a U-shaped sheet pile, a straight steel sheet pile, etc.) can be cited as the steel sheet to be cleaned by the steel sheet cleaning apparatus of the present embodiment.
Hereinafter, the case where the steel plate to be cleaned is the sheet pile Y will be described.

<Steel plate cleaning apparatus 1 of the present embodiment>
As shown in FIG. 1, a steel sheet cleaning device 1 of the present embodiment (hereinafter simply referred to as “cleaning device 1”) includes a steel plate disposition portion 2 on which a sheet pile Y to be disposed is disposed and a steel plate disposition portion 2. And a cleaning unit 10 for cleaning the completed sheet pile Y.

<Steel plate placement part 2>
As shown in FIG. 1, the steel plate disposition portion 2 includes a plurality of legs 2 a arranged side by side with an interval. A mesh member 2b is arranged on the plurality of legs 2a. The net-like member 2b is disposed such that the upper surface thereof is an inclined surface that is inclined downward from one side (the left side in FIG. 1) to the other side (the right side in FIG. 1).
Note that the upper surface of the mesh member 2b corresponds to the arrangement surface described in the claims, and the direction in which the mesh member 2b inclines (the horizontal direction in FIG. 1 and the vertical direction in FIG. 2B) is defined in the claims. This corresponds to the first direction of the arrangement surface.
Further, a direction (the left-right direction in FIG. 2B) intersecting with a direction along the direction in which the mesh member 2b is inclined (the first direction of the arrangement surface) corresponds to a second direction of the arrangement surface described in the claims. I do.
In the following, the first direction of the placement surface is referred to as the vertical direction, the second direction of the placement surface is referred to as the transverse direction, and moving along the vertical direction of the placement surface is referred to as vertical movement, the second direction of the placement surface. Moving in the traversing direction may be referred to as traversing.

<Washing unit 10>
As shown in FIGS. 1 and 2, the cleaning unit 10 includes a cleaning mechanism 20, a frame 11 to which the cleaning mechanism 20 is attached, and a cleaning nozzle vertical section 12 that moves the frame 11 (that is, the cleaning mechanism 20) vertically. And a control unit 15 (see FIG. 2A) for controlling the operation of the cleaning nozzle traversing unit 12 and the cleaning nozzle traversing unit 13.

<Cleaning mechanism 20>
As shown in FIG. 1, the cleaning mechanism 20 includes a cleaning nozzle 21 that sprays cleaning water onto an inclined surface of the steel plate disposition portion 2 (in other words, a sheet pile Y on the inclined surface) (see FIG. 5). The cleaning nozzle 21 is provided in the nozzle holding unit 22 such that the outlet 21h that blows out the cleaning water faces the downstream side (the lower side, the right side in FIG. 1) of the inclined surface. Moreover, the cleaning nozzle 21 is provided in the nozzle holding unit 22 so that the cleaning water is blown out from the blowout port 21h in a direction parallel to the inclined direction and toward the inclined surface.

  Therefore, if the washing water is blown out from the outlet 21h of the washing nozzle 21, the washing water can be sprayed on the surface of the sheet pile Y, and the sprayed washing water can flow toward the downstream side of the inclined surface. .

<Frame 11>
As shown in FIGS. 1 and 2, on both sides of the steel plate disposition portion 2, the direction in which the upper surface of the steel plate disposition portion 2 is inclined (the left-right direction in FIG. 1, the up-down direction in FIG. Along with the pair of rails 10r, 10r.
Further, a frame 11 is provided above the steel plate disposition portion 2 so as to straddle the steel plate disposition portion 2. The frame 11 has a pair of legs 11a, 11a and a beam 11b disposed between the pair of legs 11a, 11a. The lower ends of the pair of legs 11a, 11a of the frame 11 are disposed on the pair of rails 10r, 10r, respectively. Wheels 11s are provided at the lower ends of the pair of legs 11a, 11a, and the frame 11 can be moved along the pair of rails 10r, 10r by the wheels 11s, that is, moved in the direction of the inclined surface. It is provided as possible. In other words, the frame 11 is provided movably along the vertical direction.

<Washing nozzle longitudinal section 12>
This frame 11 is provided with a washing nozzle longitudinal section 12. The washing nozzle longitudinal section 12 is for moving the frame 11 along the inclined direction (longitudinal direction) of the inclined surface, and is capable of intermittently moving the frame 11 along the inclined surface direction. have. Specifically, the washing nozzle longitudinal section 12 includes a drive source having a motor for driving the wheels 11s and a reduction gear. For this reason, the washing nozzle longitudinal section 12 can intermittently move the frame 11 in a desired direction along the direction of the inclined surface (longitudinal direction) by controlling the driving of the motor.

  It is sufficient that the frame 11 can be intermittently moved along the direction of the inclined surface, and the washing nozzle longitudinal section is not limited to the above configuration. For example, a configuration in which a cable, a belt, or the like is attached to one end of the frame 11 and the frame 11 is moved by winding or unwinding the cable or the belt may be employed. In this case, a slider may be provided at the lower end of the pair of legs 11a, 11a of the frame 11, and the slider may slide on the pair of rails 10r, 10r so that the frame 11 moves.

<Washing nozzle traversing section 13>
As shown in FIG. 5, a cleaning mechanism 20 having a cleaning nozzle 21 is attached to a beam 11 b of the frame 11 via a cleaning nozzle traversing section 13. The cleaning nozzle traversing section 13 includes a pair of traversing rails 13r, 13r provided on the lower surface of the beam 11b. The pair of traversing rails 13r, 13r are formed of a steel material (I-steel) having an I-shaped cross section, and the axial direction thereof is the longitudinal direction of the beam 11b (the left-right direction in FIG. 2, the direction perpendicular to the plane of FIG. 5). And are arranged so as to be parallel to each other. Moreover, the pair of traversing rails 13r, 13r are provided such that their axial directions are substantially horizontal. That is, the pair of traversing rails 13r, 13r is attached to the beam 11b of the frame 11 so as to be substantially orthogonal to the inclination direction of the steel plate disposition portion 2, in other words, to be parallel to the traversing direction.

  On the pair of traversing rails 13r, 13r, a suspending portion 14 for suspending the cleaning mechanism 20 from the pair of traversing rails 13r, 13r is installed. The hanging portion 14 holds a pair of wheels 14s, 14s hooked on a flange portion of the pair of traversing rails 13r, 13r, and rotatably holds the pair of wheels 14s, 14s. And a connecting member 14b arranged so as to sandwich it. The connecting member 14b is connected to the nozzle holding section 22 of the cleaning mechanism 20.

  Specifically, the pair of wheels 14s, 14s is provided so as to be hooked on a flange protruding outward from surfaces of the pair of traversing rails 13r, 13r that do not face each other. Further, the connecting member 14b includes a pair of mounting walls w, w provided so as to sandwich the entire pair of transverse rails 13r, 13r, and a connecting wall rw connecting the pair of mounting walls w, w. I have. A pair of wheels 14s, 14s are rotatably mounted on the pair of mounting walls w, w.

  The connecting member 14b is provided with a driving source 13m such as a motor for driving one of the pair of wheels 14s, 14s (the right wheel 14s in FIG. 5). The drive source 13m is connected to one wheel 14s so that the drive is transmitted via a gear, a belt, or the like.

  Therefore, by operating the drive source 13m of the cleaning nozzle traversing section 13, the cleaning mechanism 20 can be moved along the pair of traversing rails 13r. In other words, the cleaning mechanism 20 can be moved along a direction (horizontal direction) substantially perpendicular to the inclination direction of the steel plate disposition portion 2.

In addition, the cleaning nozzle traversing part 13 may include a pinching wheel 14p so as to sandwich the flange part of the traversing rail 13r between the cleaning nozzle traversing part 13 and the wheel 14s. If the holding wheel 14p is provided, when the driving source 13m is operated, slippage between the wheel 14s and the flange portion can be prevented, so that the cleaning mechanism 20 can be stably moved along the pair of traversing rails 13r, 13r. Can be moved.
In this case, it is desirable to connect the wheel 14s and the holding wheel 14p with gears or the like so that they rotate simultaneously and in opposite directions and stop simultaneously.

<Control unit 15>
As shown in FIG. 2A, the driving source of the cleaning nozzle vertical section 12 and the driving source 13m of the cleaning nozzle horizontal section 13 are electrically connected to the control section 15, and the operation thereof is controlled by the control section 15. Is controlled. More specifically, the control unit 15 has a function of controlling the direction and timing of moving the cleaning mechanism 20 along the frame 11 together with the frame 11 by the cleaning nozzle vertical unit 12 along the inclined direction, and the speed of the vertical movement. . Further, the control unit 15 has a function of controlling the direction and timing of moving the cleaning mechanism 20 along the pair of traversing rails 13r, 13r by the cleaning nozzle traversing unit 13, and the speed of the traversing movement.
The location where the control unit 15 is provided is not particularly limited, and may be provided on the beam 11 b of the frame 11. Further, the control unit 15 is provided outside the steel plate cleaning apparatus 1 of the present embodiment, and transmits a signal to a driving source of the cleaning nozzle traversing unit 12 and a driving source 13m of the cleaning nozzle traversing unit 13 by wire or wirelessly. Thus, the driving source of the cleaning nozzle vertical section 12 and the driving source 13m of the cleaning nozzle horizontal section 13 may be controlled from outside the apparatus.

<Cleaning operation by the steel plate cleaning device 1 of the present embodiment>
According to the steel plate cleaning apparatus 1 of the present embodiment having the above-described configuration, if the frame 11 and the cleaning mechanism 20 are moved by the cleaning nozzle traversing section 12 and the cleaning nozzle traversing section 13, the mesh member of the steel plate placing section 2 is moved. The plurality of sheet piles Y on 2b can be washed automatically and in a short time.

  First, a plurality of sheet piles Y are arranged side by side on the mesh member 2b of the steel sheet placement section 2. At this time, the plurality of sheet piles Y are arranged so that their longitudinal directions are parallel to each other and parallel to the inclined direction (see FIG. 2).

  When a plurality of sheet piles Y are arranged on the mesh member 2b, the frame 11 is arranged at the most upstream position on the inclined surface of the steel sheet disposing section 2 by the washing nozzle longitudinal section 12 (FIG. 3A). At this time, the frame 11 is arranged at a position where the washing water blown out from the washing nozzle 21 can be sprayed on the upstream end of the sheet pile Y.

  Next, the cleaning mechanism 20 is arranged near the right end of the mesh member 2b by the cleaning nozzle traversing section 13 (see FIG. 4A). Then, preparation for cleaning the plurality of sheet piles Y on the mesh member 2b of the steel plate disposition portion 2 is completed. The position where the cleaning mechanism 20 is arranged may be near the left end of the mesh member 2b.

  When the above preparation is completed, the washing water is blown out from the washing nozzle 21, so that the washing water is sprayed on the sheet pile Y arranged near the right end of the mesh member 2b. Then, a part of the sheet pile Y in a predetermined range from the upstream end is washed with the washing water. In other words, the surface of the sheet pile Y located in a certain range (AR portion in FIG. 4A, hereinafter referred to as a cleaning range AR) from the outlet 22h of the cleaning nozzle 21 is cleaned.

  When the cleaning mechanism 20 is moved by the cleaning nozzle traversing section 13 while blowing out the cleaning water from the cleaning nozzle 21, the surfaces of the plurality of sheet piles Y located in the cleaning area AR are sequentially cleaned from the rightmost one. .

  Eventually, when the cleaning mechanism 20 moves to the left end, the movement of the cleaning mechanism 20 by the cleaning nozzle traversing section 13 is stopped. Then, the frame 11 is moved toward the downstream side in the inclined direction by the washing nozzle longitudinal section 12. Then, when the frame 11 moves by the same distance or slightly shorter than the length L3 of the cleaning range AR in the tilt direction, the movement of the frame 11 is stopped by the cleaning nozzle longitudinal section 12 (FIG. 3B, FIG. 4). (B)).

  When the movement of the frame 11 is stopped, the cleaning mechanism 20 is moved from the left end to the right end by the cleaning nozzle traversing section 13. In other words, the cleaning mechanism 20 is moved by the cleaning nozzle traversing section 13 in the direction opposite to the previous movement direction.

  Eventually, when the cleaning mechanism 20 moves to the right end, the movement of the cleaning mechanism 20 by the cleaning nozzle traversing section 13 is stopped. Then, the frame 11 is moved toward the downstream side in the inclined direction by the washing nozzle longitudinal section 12.

  When the frame 11 moves by the same distance or slightly shorter than the length L3 of the cleaning range in the inclined direction, the movement of the frame 11 is stopped by the cleaning nozzle traversing section 12, and the cleaning mechanism 20 is again moved by the cleaning nozzle traversing section 13. Is moved from the right edge to the left edge.

  The above steps are repeated until the frame 11 reaches the vicinity of the downstream end of the mesh member 2b of the steel plate disposition portion 2, and when the frame 11 reaches the vicinity of the downstream end of the mesh member 2b of the steel plate disposition portion 2, a plurality of sheet piles Y Washing is completed.

  The washed sheet pile Y is removed from above the net-like member 2b of the steel plate disposing portion 2 by a crane or the like. Then, a plurality of sheet piles Y to be washed next are arranged side by side on the net-like member 2b of the steel plate disposition portion 2, and the plurality of sheet piles Y are washed in the same procedure as described above.

  As described above, according to the steel plate cleaning device 1 of the present embodiment, the net-like member of the steel plate disposition unit 2 can be obtained simply by moving the frame 11 and the cleaning mechanism 20 by the cleaning nozzle traversing unit 12 and the cleaning nozzle traversing unit 13. The plurality of sheet piles Y on 2b can be washed automatically and in a short time.

  Further, since the steel sheet disposition portion 2 places the sheet pile Y on the mesh member 2b, the washing water can be quickly drained without collecting on the inclined surface. Then, it is possible to prevent mud and the like once removed from the sheet pile Y by the washing water from reattaching to the sheet pile Y.

  Note that the direction in which the cleaning mechanism 20 is traversed may be alternately switched, or may be traversed in the same direction each time. As described above, if the traversing direction is alternately changed, the period during which the cleaning mechanism 20 traverses without performing the cleaning operation can be reduced, and the advantage that the cleaning efficiency can be improved can be obtained.

  The speed at which the cleaning mechanism 20 is moved by the cleaning nozzle traversing section 13 is appropriately set according to the degree of dirt on the surface of the sheet pile Y. In other words, the cleaning nozzle traversing section 13 has a function of adjusting the moving speed at which the cleaning mechanism 20 traverses according to the state of dirt, and the cleaning mechanism 20 is controlled according to the degree of dirt on the surface of the sheet pile Y. The moving speed for traversing is appropriately set. For example, when the surface of the sheet pile Y is very dirty, the speed at which the cleaning mechanism 20 is moved is reduced, and when the surface of the sheet pile Y is easily removed, the speed at which the cleaning mechanism 20 is moved is increased.

  Further, the cleaning nozzle traversing section 13 may move the cleaning mechanism 20 intermittently. For example, when the cleaning mechanism 20 traverses by a predetermined distance, the traversing movement is stopped, and the cleaning of the sheet pile Y is performed by the cleaning mechanism 20 in that state. When the cleaning of the sheet pile Y is performed for a predetermined time, the cleaning mechanism 20 is moved laterally by a predetermined distance. When the cleaning mechanism 20 is traversed by a predetermined distance, the traversing movement is stopped, and the cleaning of the sheet pile Y by the cleaning mechanism 20 is performed. If the sheet pile Y is washed while being intermittently moved in this way, the sheet pile Y can be washed while the washing mechanism 20 is stopped, so that the washing effect can be enhanced. In particular, when the cleaning mechanism 20 is traversed by a certain distance and the region cleaned at the previous stop and the region cleaned at the current stop are overlapped, cleaning leakage hardly occurs.

  Further, when the frame 11 is vertically moved by a certain distance, if the frame 11 is moved by a distance shorter than the length L3 of the cleaning range AR in the inclined direction, cleaning leakage hardly occurs in the vertical direction.

<About steel plate placement part 2>
The inclination angle of the inclined surface of the steel plate disposition portion 2 with respect to the horizontal plane is not particularly limited. Any angle may be used as long as the sheet pile Y can be stably arranged on the steel plate disposition portion 2 and the washing water can smoothly flow to the downstream side. For example, the inclination angle of the inclined surface of the steel plate disposition portion 2 with respect to the horizontal plane is preferably about 2 degrees or less.

  In addition, the upper surface of the mesh member 2b of the steel plate disposition portion 2 does not have to be an inclined surface. That is, the upper surface of the mesh member 2b of the steel plate disposition portion 2 may be a horizontal plane. In this case, water on the sheet pile Y may accumulate on the sheet pile Y. However, if the water pressure and the flow rate of the cleaning water blown out from the cleaning nozzle 21 are sufficiently large, the water on the sheet pile Y can be flown by the cleaning water and removed from the sheet pile Y. Specifically, if the washing nozzle 21 is arranged so that the washing water is blown out in the vertical direction, water on the plate Y can flow in the vertical direction. In addition, the effect of flowing water or the like on the sheet pile Y in the vertical direction can be enhanced by the vertical movement of the frame 11, that is, the vertical direction of the washing nozzle 21.

Further, the steel plate disposition portion 2 does not necessarily have to include the mesh member 2b. In that case,
What is necessary is just to put the sheet pile Y on the several leg parts 2a of the steel plate arrangement part 2 directly. Also in this case, since the washing water can be quickly drained from the space between the legs 2a, it is possible to prevent the mud and the like removed by the washing water from re-adhering to the sheet pile Y. In this case, the inclination angle of a surface (virtual inclined surface) connecting the upper surfaces of the leg portions 2a (the left and right end legs 2a in FIG. 1) located at both ends of the plurality of leg portions 2a is the above angle, and The upper ends of the legs 2a between the legs 2a located at both ends are disposed so as not to be located above the virtual inclined surface.

  Further, the steel plate disposition portion 2 may place a simple plate-like member on the plurality of legs 2a and place the sheet pile Y on the plate-like member.

<Cleaning mechanism 20>
In the steel sheet cleaning apparatus 1 of the present embodiment, the sheet pile Y can be cleaned by spraying the cleaning water with the cleaning nozzle 21 of the cleaning mechanism 20, but the cleaning effect is further enhanced if the cleaning mechanism 20 has the following structure. be able to.

<Cleaning nozzle 21>
As shown in FIG. 5, the cleaning nozzle 21 of the cleaning mechanism 20 is cylindrical and has a blowout port 21h formed at the tip. As described above, the cleaning nozzle 21 is provided in the nozzle holding unit 22 such that the outlet 21h that blows out the cleaning water faces the downstream side in the inclined direction. Moreover, the cleaning nozzle 21 is provided in the nozzle holding unit 22 so that the cleaning water is blown out from the blowout port 21h in a direction parallel to the inclined direction and toward the inclined surface. Specifically, the cleaning nozzle 21 is provided such that the axial direction thereof is along the inclination direction of the mesh member 2b of the steel plate disposition portion 2, and the outlet 21h is provided in the inclination direction of the mesh member 2b of the steel plate disposition portion 2. It is arranged so as to face the downstream side.

  The cleaning nozzle 21 is connected at its base end to a cleaning water supply unit 23 via a tube or the like. The cleaning water supply unit 23 can supply high-pressure cleaning water to the cleaning nozzle 21 at a predetermined flow rate. Therefore, by operating the washing water supply unit 23, high-pressure washing water can be blown out from the outlet 21h of the washing nozzle 21, so that high-pressure washing water is sprayed on the surface of the sheet pile Y, and the sheet pile Y is washed with the washing water. Can be washed.

  Note that the pressure and flow rate of the cleaning water supplied from the cleaning water supply unit 23 to the cleaning nozzle 21 are not particularly limited, and may be appropriately determined depending on the degree of contamination and the material of the sheet pile Y to be cleaned, the inclination angle of the upper surface of the steel plate arrangement unit 2, and the like. Adjusted. For example, in the case of a general sheet pile Y in which a steel sheet is formed into a hat shape, a U shape, a straight line, or the like, the water pressure is adjusted to about 5 to 20 Pa, and the flow rate is 50 to 100 L / min. Adjusted to the extent.

  Further, it is desirable that the cleaning nozzle 21 be provided so that its axial direction is lower than horizontal, and in particular, its axial direction is more downward than the angle of the upper surface of the mesh member 2b of the steel plate disposition portion 2 with respect to horizontal. . If the cleaning nozzle 21 is provided in this manner, the cleaning water blown out from the cleaning nozzle 21 can be reliably sprayed on the upper surface of the sheet pile Y, so that the cleaning effect can be enhanced.

<Reciprocating mechanism 25>
The cleaning nozzle 21 may be fixed to the nozzle holding unit 22 in the above-described state. However, if the outlet 21h reciprocates along the inclined direction of the mesh member 2b of the steel plate disposition portion 2, the washing effect of the sheet pile Y with the washing water can be enhanced. That is, when the washing nozzle 21 swings and the washing water blown out from the outlet 21h of the washing nozzle 21 reciprocates along the inclined direction of the mesh member 2b, the sheet pile of the washing water is used. The cleaning effect of Y can be enhanced. The mechanism for reciprocating the outlet 21h is not particularly limited, and any structure may be adopted.

  For example, as shown in FIG. 5, a shaft 26 arranged parallel to the transverse direction is provided, and the base end of the cleaning nozzle 21 is rotatably connected to the shaft 26. That is, the cleaning nozzle 21 is connected to the nozzle holding unit 22 via the shaft 26 so that the tip swings around the shaft 26 as a fulcrum. The cleaning nozzle 21 is provided with a cam plate 27 having a slit 27h parallel to the axial direction.

  On the downstream side of the shaft 26 in the tilt direction, a rotary shaft 28 a parallel to the tilt shaft 26 is rotatably provided in the nozzle holding unit 22. The rotation shaft 28a has its base end connected to a drive source such as a motor, and can be rotated by the drive force of the drive source. On the other hand, a rotating plate 28 having a rotating surface 28f orthogonal to the rotating shaft 28a is provided at the tip of the rotating shaft 28a. A cam 28c is provided on the rotating surface 28f of the rotating plate 28 so as to be movably inserted along the axial direction of the slit 27h of the cam plate 27.

  With the structure as described above, when the drive shaft rotates the rotary shaft 28a, the rotary plate 28 provided on the rotary shaft 28a also rotates. Therefore, the cam 28c provided on the rotary plate 28 Orbit around. Then, since the cam 28c can move along the axial direction of the slit 27h of the cam plate 27, the cam 28c moves in the axial direction of the slit 27h of the cam plate 27 with the rotation of the rotary plate 28. Since the tip of the cleaning nozzle 21 can swing about the shaft 26, the tip of the cleaning nozzle 21 swings with the movement of the cam 28c (see the dotted line in FIG. 5). The cleaning nozzle 21 is provided in the nozzle holding unit 22 so that the cleaning water is blown out from the blowout port 21h in a direction parallel to the inclined direction and toward the inclined surface. Therefore, if the tip of the washing nozzle 21 is swung, the washing water sprayed from the washing nozzle 21 onto the sheet pile Y can be moved in the longitudinal direction of the sheet pile Y, and the angle at which the washing water is sprayed onto the sheet pile Y also changes. Therefore, the cleaning effect of the sheet pile Y can be enhanced.

  The cleaning effect of the sheet pile Y can be further enhanced if the angle at which the washing water is sprayed from the cleaning nozzle 21 onto the sheet pile Y can be changed not only in the longitudinal direction of the sheet pile Y but also in a direction intersecting the longitudinal direction. . Further, it is desirable that the angle at which the washing water is sprayed on the sheet pile Y can be changed even in a direction intersecting the longitudinal direction of the sheet pile Y.

  The cam 28c and the cam plate 27 correspond to a cam mechanism described in the claims. Note that the cam mechanism is not limited to the above configuration, and may be any mechanism that can swing the tip of the cleaning nozzle 21 by the rotation of the rotating plate 28.

  Further, the configuration for swinging the tip of the cleaning nozzle 21 is not limited to the configuration using the rotating plate 28 and the cam mechanism as described above. For example, if the tip of the cleaning nozzle 21 can swing about the shaft 26 as described above, a cylinder mechanism may be provided between the tip of the cleaning nozzle 21 and the nozzle holding unit 22. In this case, if the cylinder mechanism is expanded and contracted, the tip of the cleaning nozzle 21 can be swung up and down.

<A plurality of cleaning nozzles 21>
The number of the cleaning nozzles 21 may be one, or two or more. If a plurality of cleaning nozzles 21 are arranged side by side in the inclined direction, the range that can be cleaned at one time can be widened, and the cleaning time can be shortened. In addition, if a plurality of cleaning nozzles 21 are arranged side by side in the traversing direction, the same location can be cleaned a plurality of times only by moving the cleaning nozzle 21 once in the traversing direction, so that the cleaning effect of the sheet pile Y can be enhanced.

  When a plurality of cleaning nozzles 21 are arranged side by side in the horizontal direction and a reciprocating mechanism 25 is provided for each of the cleaning nozzles 21, the phase at which the outlet 21h of the plurality of cleaning nozzles 21 reciprocates is determined. It is desirable to control the reciprocating movement of each cleaning nozzle 21 so as to shift. With such a configuration, an effect is obtained that dirt on the sheet pile Y and cleaning water on the sheet pile Y can be easily washed away.

  For example, when the reciprocating movement of each washing nozzle 21 is controlled by the rotating plate 28 and the cam mechanism as described above, the rotating shaft 28a of the rotating plate 28 that controls the reciprocating movement of each washing nozzle 21 is made coaxial. The position of the cam 28c is different. Then, when the rotary plate 28 rotates, the position of the cam 28c in the axial direction of the slit 27h of the cam plate 27 is different. Therefore, when each cleaning nozzle 21 reciprocates, the position of the outlet 21h in the inclined direction (that is, Phase) can be different.

  Further, a plurality of cleaning nozzles 21 may be arranged in the vertical direction. In this case, a different cleaning effect can be obtained than when a plurality of nozzles are arranged in the horizontal direction.

<Height adjustment function 30>
The position at which the washing water blown from the outlet 21h of the washing nozzle 21 is blown onto the sheet pile Y is determined by the position in the vertical direction between the outlet 21h and the sheet pile Y. Therefore, if the shape and size of the sheet pile Y change, the position at which the washing water is sprayed on the sheet pile Y also changes.

  Therefore, the cleaning mechanism 20 may include a height adjustment function 30 that adjusts the position at which the cleaning water is sprayed on the sheet pile Y in accordance with the sheet pile Y. The configuration of the height adjustment function 30 is not particularly limited. For example, as shown in FIG. 5, a height adjustment function 30 can be provided by providing a rack and pinion mechanism between the connecting member 14b of the cleaning nozzle traversing section 13 and the nozzle holding section 22 of the cleaning mechanism 20. Specifically, the rack 31 is provided on the connecting member 14b of the cleaning nozzle traversing portion 13 so that the axial direction thereof is parallel to the vertical direction. Then, the lower end of the rack 31 is connected to the nozzle holding unit 22. On the other hand, a shaft 33 that is rotated by a drive motor, a manual handle, or the like is provided on the connecting member 14b, and a pinion 32 that meshes with the rack 31 is provided on the shaft 33. Then, if the shaft 33 is rotated by a drive motor, a manual handle, or the like, the rack 31 moves in the axial direction with the rotation of the pinion 32, so that the nozzle holding unit 22 can be moved up and down, and the cleaning nozzle 21 blows out. The vertical height between the opening 21h and the sheet pile Y can be adjusted.

  Further, a height adjustment function 30 may be provided by providing a cylinder mechanism between the connecting member 14b of the cleaning nozzle traversing section 13 and the nozzle holding section 22 of the cleaning mechanism 20. Also in this case, by extending and contracting the cylinder mechanism, the distance between the connecting member 14b of the cleaning nozzle traversing part 13 and the nozzle holding part 22 of the cleaning mechanism 20 can be changed. And the height of the sheet pile Y in the vertical direction can be adjusted.

  The apparatus for cleaning steel sheets of the present invention is suitable as an apparatus for cleaning sheet piles, piers, lining boards, and the like.

REFERENCE SIGNS LIST 1 steel plate cleaning device 2 steel plate placement unit 10 cleaning unit 12 cleaning nozzle traversing unit 13 cleaning nozzle traversing unit 15 traversing unit 20 cleaning mechanism 21 cleaning nozzle 21 h outlet 25 reciprocating mechanism 26 shaft 27 cam plate 27 h slit 28 rotating plate 28 c Cam 30 Height adjustment mechanism 31 Rack 32 Pinion Y Yaita

Claims (6)

A steel plate disposing portion having a disposing surface on which a plurality of steel plates are disposed,
A cleaning nozzle that is disposed above the steel plate disposition portion and sprays cleaning water in a direction along the first direction of the disposition surface of the steel plate disposition portion and in a direction toward the disposition surface,
A cleaning nozzle traversing unit that moves the cleaning nozzle in a second direction that intersects a direction along the first direction of the arrangement surface of the steel plate arrangement unit,
A cleaning nozzle longitudinal section that moves the cleaning nozzle along a first direction of an arrangement surface of the steel plate arrangement section,
A control unit for controlling the operation of the washing nozzle longitudinal section and the washing nozzle transverse section,
The control unit includes:
Traversing movement for moving the cleaning nozzle along the second direction by the cleaning nozzle traversing portion, and the steel plate in the first direction of the disposing surface along the first direction of the disposing surface by the cleaning nozzle traversing portion Controlling the operation of the cleaning nozzle vertical section and the cleaning nozzle horizontal section so as to repeat the vertical movement of moving the cleaning nozzle by a distance shorter than the length of the arrangement surface of the mounting section. Steel plate cleaning equipment. When the washing nozzle swings, a reciprocating mechanism for swinging the washing nozzle is provided so that washing water blown out from the outlet of the washing nozzle reciprocates along the first direction of the arrangement surface. The apparatus for cleaning a steel sheet according to claim 1, wherein the apparatus is provided. It is provided with a plurality of the cleaning nozzles provided so that the direction of blowing the cleaning water from the outlet is parallel to each other,
The reciprocating mechanism,
The steel plate cleaning apparatus according to claim 2, wherein the swing of the plurality of cleaning nozzles is controlled so that the phase of the reciprocating movement of the outlet is shifted. The washing nozzle is
The outlet is provided at one end, and the other end is formed by a shaft-shaped member provided so as to be swingable around an axis parallel to the second direction,
The reciprocating mechanism,
A rotating plate that rotates around a rotation axis parallel to the second direction,
A cam mechanism that connects the rotating plate and the cleaning nozzle, and that swings the tip of the cleaning nozzle along the first direction of the arrangement surface when the rotating plate rotates. Item 4. The apparatus for cleaning a steel sheet according to item 2 or 3. 5. The apparatus for cleaning a steel sheet according to claim 1, further comprising a height adjusting function for adjusting a distance between the cleaning nozzle and the steel sheet disposing portion. The steel plate disposition unit,
The apparatus for cleaning a steel sheet according to any one of claims 1, 2, 3, 4 and 5, further comprising a top plate made of a net-like member forming the arrangement surface.

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