JP2020093896A - Transportation device and transportation method - Google Patents

Abstract

To provide a transportation device and a transportation method, capable of avoiding an obstacle with high efficiency in transporting a long heavy object.SOLUTION: A transportation device 1 includes: a first member 10 provided with a first roll rotating in a lengthwise direction of a long heavy object; a second member 20 provided with a second roll rotating in a transportation direction of the long heavy object; and a connection part 30 for connecting the first member 10 and the second member 20 in a relatively rotatable manner. The first member 10 is provided above the second member 20. The connection part 30 connects the first member 10 and the second member 20 rotatably by means of a rotational motion through screwing of a connection bolt hole 302 and a connection bolt 304. The connection part 30 connects the first member 10 and the second member 20 so that a rotational plane rotating about the connection part 30, a shaft of a roll 102 provided at the first member 10 and a rotational plane rotating about the connection part 30, a shaft of a roll 202 provided at the second member 20 are substantially parallel to each other.SELECTED DRAWING: Figure 3

Description

The present invention relates to a carrying device and a carrying method.

For example, in Patent Document 1, a leg material B is provided at an end of a main material A. A wheel C is provided at the other end. A jack D is provided in the middle of the material A, and a leg material E is provided below the jack D. An H-shaped steel moving device configured as described above is disclosed.

Further, in Patent Document 2, a rectangular frame body that opens vertically is arranged on one or a plurality of rails laid in the carrying direction of heavy objects so as to be movable along the rails. Inside the body, a plurality of first rollers, which are oriented in a direction perpendicular to the rail and are in rolling contact with the rail, are arranged on the lower side, and on the upper side of the arranged first rollers, the plurality of first rollers are oriented in a direction parallel to the rail, There is disclosed a heavy load carrying device in which a plurality of second rollers that are in rolling contact with a heavy load placed on the upper side thereof are arranged.

JP-A-6-278997 JP, 2011-93621, A

An object of the present invention is to provide a carrying device and a carrying method capable of efficiently avoiding obstacles when carrying long heavy objects.

The carrying device according to the present invention is provided with a first member provided with a first roll that rotates in the length direction of a long heavy object and a second roll that rotates in the carrying direction of a long heavy object. A second member, and a connecting portion that relatively rotatably connects the first member and the second member.

Suitably, the said 1st member is provided above the said 2nd member, and the said connection part rotates the axis|shaft of the 1st roll provided in the said 1st member centering|focusing on the said connection part. The first member and the second member are arranged so that the rotated plane and the rotating plane obtained by rotating the axis of the second roll provided on the second member about the connecting portion are substantially parallel to each other. Connect with the member of.

Suitably, it is located in the axial direction of the said 1st roll, and the distance change which changes the distance between the guide part arrange|positioned at the both sides of the said 1st roll, and the said 1st roll and the said guide part. The guide part is disposed on both sides of the long heavy object and is in contact with the long heavy object during transportation of the long heavy object.

Suitably, it further has a 2nd guide part located in the axial direction of the said 2nd roll, and is arrange|positioned at the both sides of the said 2nd roll, The said 2nd member is at the time of conveyance of a long heavy object. In the above, the second guide portion is arranged on both sides of the rail when the long heavy object is conveyed, and the second guide portions are arranged on both sides of the rail when the long heavy object is conveyed. , Is in contact with the rail.

Preferably, the long heavy object and the rail are H-shaped steel materials, the second guide portion is a stepped roll, and the second guide portion is in contact with one flange of the H-shaped steel material, It is arranged on both sides of the flange and rotates in the carrying direction of long heavy objects.

In addition, the carrying method according to the present invention includes a first member provided with a first roll that rotates in the longitudinal direction of a long heavy object and a second roll that rotates in the carrying direction of a long heavy object. Using a first carrier device and a second carrier device having a provided second member and a connecting portion that connects the first member and the second member so as to rotate relative to each other , The one long end of the long heavy object is placed on the first carrying device, and the other end of the long heavy object is placed on the second carrying device. In the length direction of the long heavy object, the step of moving the long heavy object toward the first carrying device, and the long object moved around the first carrying device toward the first carrying device. A step of moving the other end of the long heavy object in the carrying direction while rotating the heavy object, and the length in a state of being moved toward the first carrying device or the second carrying device. And the step of returning the scale object to the state before the movement.

Suitably, after moving the other end of the long heavy object in the carrying direction in a state where the long heavy object is moved toward the first carrying device, the long heavy object is moved. In the length direction, the step of moving the long heavy object toward the second carrying device, and the length moved toward the second carrying device around the second carrying device. The method further includes the step of moving one end of the long heavy object in the carrying direction while rotating the long heavy object.

ADVANTAGE OF THE INVENTION According to this invention, an obstacle can be efficiently avoided at the time of conveyance of a long heavy object.

It is a perspective view for explaining the outline in this embodiment. It is a perspective view which illustrates the assembly state of the conveying apparatus 1 in this embodiment. It is a perspective view for explaining the detailed composition of transportation device 1 in this embodiment. It is a figure which illustrates the state which has arrange|positioned the conveying apparatus 1 in this embodiment. It is a flow chart explaining the transportation method (S10) in this embodiment. It is a figure which illustrates the carrying method (S10) in this embodiment in detail.

First, the background of the present invention will be described with reference to FIG.
FIG. 1 is a perspective view for explaining the outline of this embodiment.
Conventionally, in the dismantling of supporting works in bridge construction and the like, when moving an H-shaped steel material (hereinafter referred to as steel material H) to be moved among the H-shaped steel materials used for supporting work, the steel material H is supported, It was moved on another H-shaped steel material (hereinafter referred to as a rail) arranged in the transportation direction of the steel material H. For example, using a mobile crane or a chain block, the slid steel material H can be moved while being dragged, or jack-up type transportation devices with wheels are attached to both ends of the steel material H, and the steel material H that is separated from the rail can be slid and moved. Was there.
However, as illustrated in FIG. 1, when the length of the steel material H is longer than the distance between the pier A and the pier B, both ends of the steel material H contact the two piers. Therefore, in order to transport the steel material H from the position on the back side to the position on the front side, it is necessary to lift each end of the steel material H once using a crane and move it from the back side to the front side of the pier. .. In this method, the work efficiency was poor because the ends of the steel material H had to be respectively lifted. In addition, it was difficult to lift the end of the steel material H when the crane had no winding allowance.
Therefore, according to the present invention, the steel material H can be transported from the rear side to the front side of the pier while efficiently avoiding the pier as the obstacle.

Next, the outline of the present embodiment will be described with reference to FIG.
As illustrated in FIG. 1, the steel material H is installed on two rails. Specifically, the steel material H has one end supported by a rail located on the left side (hereinafter referred to as a left rail) and the other end on a rail located on the right side (hereinafter referred to as a right rail). It is supported. The transport device 1 is arranged between the steel material H and each rail. The transporting device 1 arranged on each rail supports each end of the steel material H. The carrying device 1 is in contact with the flange surface of the steel material H and includes a first member including a roll that rotates in the length direction of the steel material H, and a roll that contacts the flange surface of the rail surface and rotates in the carrying direction of the steel material H. And a second member provided with, and these are rotatably connected in a state of being vertically stacked.
The operator moves the steel material H from the depth side to the front side, moves the steel material H placed on the first member to one of the left rail and the right rail, and moves the first member and the second member. The steel material H is transported from the depth side to the front side while avoiding the pier by combining the rotation operation of relatively rotating the member. Here, the steel material H is an example of a long heavy object. The long heavy object includes, for example, a steel material having a length of 5 m or more, a steel frame, a pillar material, a building material, and the like.

Next, with reference to FIG. 2 and FIG. 3, the configuration of the carrying device 1 in the present embodiment will be described.
FIG. 2 is a perspective view illustrating an assembled state of the carrying device 1 according to the present embodiment.
FIG. 3 is a perspective view for explaining the detailed configuration of the carrying device 1 in the present embodiment.
As illustrated in FIGS. 2 and 3, the carrying device 1 includes a first member 10, a second member 20, and a connecting portion 30. The first member 10 is rotatably connected to the second member 20 by the connecting portion 30. The connecting portion 30 has a connecting bolt hole 302 and a connecting bolt 304. The connection part 30 of this example will be described as a specific example in which the first member 10 is provided with the connection bolt holes 302 and the second member 20 is provided with the connection bolts 304. The first member 10 may be provided with a bolt hole 302 and the first member 10 may be provided with a connecting bolt 304.
The connecting portion 30 rotatably connects the first member 10 and the second member 20 by the rotational movement of the connecting bolt hole 302 and the connecting bolt 304 by screwing. The connecting portion 30 includes a rotation plane obtained by rotating the shaft of the roll 102 provided on the first member 10 about the connecting portion 30 and an axis of the roll 202 provided on the second member 20 about the connecting portion 30. The first member 10 and the second member 20 are connected so that the rotated plane of rotation is substantially parallel.

First, the configuration of the first member 10 will be described.
The first member 10 is a portion located above the second member 20 and functions as a table on which the steel material H is placed. The first member 10 has a main body 100, a guide part 120, a distance changing part 130, and a connecting part 30 (connection bolt hole 302). The main body 100 is connected to the guide unit 120 via the distance changing unit 130. The first member 10 is an example of the first member.

(Main body 100)
The main body 100 has a roll 102, a handle 104, and a bolt hole 302 for connection. The main body 100 is provided with a roll 102, a handle 104, and a connecting bolt hole 302 in a metal frame body.
The rolls 102 are rolls that rotate in the length direction of the steel material H, and a total of four rolls are provided in the main body 100. The roll 102 is provided with two sets of two rolls as one set. Focusing on one set, the rotation axes of the two rolls 102 are arranged coaxially.
The handle 104 is a round bar provided integrally with a metal frame body. The handles 104 are arranged on both sides of the roll 102 so as to sandwich the roll 102, and are arranged substantially parallel to the rotation axis of the roll 102.
The connecting bolt hole 302 is located below the main body 100 and is provided at the center of the rotary plate 106. The connection bolt hole 302 is screwed with a connection bolt 304 of the second member 20 described later.
In addition, as the main body 100, an off-the-shelf heavy article transport roller can be used.

(Guide part 120)
The guide portion 120 is a portion that prevents the steel material H placed on the roll 102 from falling off from the roll 102. The guide portions 120 are located in the axial direction of the roll 102 and are arranged on both sides of the roll 102. In other words, the guide parts 120 are arranged on both sides of the main body 100 via the distance changing part 130. The guide portions 120 are arranged on both sides in the width direction of the steel material H and are in contact with the steel material H when the steel material H is transported. Accordingly, the guide portion 120 causes the main body 100 to accurately move the steel material H in the length direction.
The guide unit 120 includes a guide frame 122 and a guide roll 124.
The guide frame 122 is a base of the guide portion 120, and is formed by providing ribs on angle steel. The guide frame 122 of this example is formed by providing equilateral angle steel with ribs. The guide frame 122 has a plurality of guide rolls 124.
The guide roll 124 is a roll for accurately moving the steel material H in the length direction when the steel material H is transported. One guide roll 124 is provided at each end of the guide frame 122. The guide roll 124 is a straight type roll. The roll surface length of the guide roll 124 is shorter than the roll surface length of the stepped guide roll 226 described later. By shortening the roll surface length of the guide roll 124, when the steel material H after transportation is hoisted by a crane, it can be hoisted smoothly without being caught by the guide roll 124. In addition, the guide roll 124 rotates in the length direction of the steel material H as the steel material H moves in the length direction while being in contact with the steel material H during transportation.

(Distance changing unit 130)
The distance changing unit 130 is located between the main body 100 and the guide unit 120, connects the main body 100 and the guide unit 120, and changes the separation distance between the main body 100 and the guide unit 120. The distance changing unit 130 of this example inserts the bolt connected to the main body 100 into a through hole (not shown) formed in the guide frame 122, and fastens each nut from the front and back of the inserted guide frame 122, The guide frame 122 is fixed in a predetermined position. Accordingly, the distance changing unit 130 can appropriately change the distance between the main body 100 and the guide unit 120.

Next, the configuration of the second member 20 will be described.
The second member 20 is located below the first member 10, supports the steel material H and the first member 10, and is a portion that functions as a suspension that moves on the rail. The second member 20 has a main body 200, a guide portion 220, a distance changing portion 230, and a connecting portion 30 (a connecting bolt 304). The main body 200 is connected to the guide unit 220 via the distance changing unit 230. The second member 20 is an example of the second member.
Here, the second member 20 has substantially the same configuration as the first member 10 described above, and is a state in which the first member 10 is inverted. That is, the main body 200, the guide unit 220, and the distance changing unit 230 have substantially the same configurations as the main body 100, the guide unit 120, and the distance changing unit 130 that form the first member 10. Hereinafter, the description of the configuration of the second member 20 will be mainly given to the configuration different from that of the first member 10, and a part of the common configuration will be omitted.

(Main body 200)
The main body 200 has a roll 202, a handle 204, and a connecting bolt 304. The main body 200 is provided with a roll 102, a handle 104, and a connecting bolt 304 on a metal frame body.
The roll 202 is a roll that rotates in the transport direction of the steel material H. In other words, the roll 202 is a roll that rotates in the rail length direction.
The connecting bolt 304 is located above the main body 100 and is provided at the center of the rotary plate 206. The connection bolt 304 is screwed into the connection bolt hole 302 of the first member 10 described above.

(Guide 220)
The guide portion 220 is a portion that prevents the roll 202 from falling off the rail. The guide portions 220 are located in the axial direction of the roll 202 and are arranged on both sides of the roll 202. In other words, the guide parts 220 are arranged on both sides of the main body 200 via the distance changing part 230. The guide portions 220 are arranged on both sides in the width direction of the rail when the steel material H is transported, and contact the rail. As a result, the guide portion 220 causes the main body 200 to accurately move in the length direction of the rail.
The guide portion 220 has a guide frame 222 and a stepped guide roll 226. The guide portion 220 is an example of the second guide portion according to the present invention.
The guide frame 222 has the same configuration as the above-mentioned guide frame 122, and therefore its description is omitted.
The stepped guide roll 226 is a roll for accurately moving the rail in the length direction during transportation of the steel material H. The stepped guide rolls 226 are provided at both ends of the guide frame 222, respectively. The step guide roll 226 is a step type roll. The roll surface length of the stepped guide roll 226 is longer than the roll surface length of the guide roll 124 described above. By increasing the roll surface length of the stepped guide roll 226, it is possible to prevent derailment from the rail during transportation of the steel material H. Further, the stepped guide roll 226 rotates in the length direction of the rail as the steel material H is being transported in a state of being in contact with the rail.

(Distance changing unit 230)
The distance changing unit 230 has the same configuration as the distance changing unit 130 described above, and thus the description thereof will be omitted.
As described above, in the carrying device 1 of the present embodiment, the first member 10 and the second member 20 formed of a member substantially similar to the first member 10 are rotatably connected in a state of being reversed to each other. Thus, during transportation, the angle of the steel material H in the length direction with respect to the transportation direction can be changed.

Next, with reference to FIG. 4, a state in which the carrying device 1 according to the present embodiment is arranged between the rail and the steel material H will be described in detail.
FIG. 4 is a diagram illustrating a state in which the carrying device 1 according to the present embodiment is arranged. FIG. 4(A) is a view seen from the rail length direction, and FIG. 4(B) is a view seen from the rail width direction.
As illustrated in FIG. 4, the carrying device 1 is arranged between the rail and the steel material H in a state where the first member 10 and the second member 20 are connected.
As illustrated in FIG. 4A, the second member 20 is arranged so that the roll surface of the stepped guide roll 226 is in contact with both sides of the rail flange in the width direction of the rail. As a result, the second member 20 is less likely to come off the rail during movement in the length direction of the rail by sandwiching the rail with the stepped guide roll 226. An appropriate gap may be provided between the stepped guide roll 226 and the rail to prevent it from falling off.
Further, as illustrated in FIG. 4B, the first member 10 is arranged so that the roll surface of the guide roll 124 is in contact with both sides of the flange of the steel material H in the width direction of the steel material H. As a result, the first member 10 sandwiches the steel material H with the guide rolls 124, thereby preventing the steel material H from falling off when the steel material H moves in the length direction. An appropriate gap may be provided between the guide roll 124 and the steel material H to prevent the steel material H from falling off.

Next, with reference to FIG. 5 and FIG. 6, a method of carrying the steel material H using the carrying device 1 in the present embodiment will be described.
FIG. 5 is a flowchart illustrating the carrying method (S10) in this embodiment.
FIG. 6 is a diagram illustrating the carrying method (S10) in the present embodiment in detail.
The carrying method is performed after the carrying device 1 is arranged between the rail and the steel material H as illustrated in FIG. Hereinafter, the steps in steps 100 (S100) to 120 (S120) will be described with reference to FIGS. 5 and 6.

In step 100 (S100), the worker installs the steel material H (FIG. 6(A)) evenly installed on the left rail and the right rail on the transport device 1 on the right rail in the length direction of the steel material H. Move towards. That is, the worker brings the steel material H closer to the right rail (FIG. 6(B)). At this time, the worker moves the steel material H to such an extent that the left end portion of the steel material H does not fall off from the carrying device 1 on the left rail.

In step 105 (S105), the worker moves the left end portion of the steel material H in the carrying direction while rotating the steel material H in the state of being moved to the right rail centering on the carrying device 1 on the right rail (Fig. 6(C)). Then, the worker moves the left end portion of the steel material H to a position where it passes the bridge pier B (FIG. 6(D)). That is, the worker can avoid the bridge pier B and move the left end of the steel material H in the transport direction.

In step 110 (S110), the worker moves the steel material H whose left end has been moved in the carrying direction in the length direction of the steel material H toward the carrying device 1 on the left rail. That is, the worker brings the steel material H closer to the left rail (FIG. 6(E)). At this time, the worker moves the steel material H to such an extent that the right end portion of the steel material H does not fall off from the carrying device 1 on the right rail.

In step 115 (S115), the worker moves the right end portion of the steel material H in the carrying direction while rotating the steel material H that is moved to the left rail side around the carrying device 1 on the left rail (FIG. 6 (F)). Then, the worker moves the right end portion of the steel material H to a position where it passes the bridge pier A. That is, the worker can avoid the bridge pier A and move the right end of the steel material H in the transport direction. Then, the worker moves the steel material H such that the angle formed by the length direction of the steel material H and the transportation direction is close to a right angle. (FIG. 6(G)).

In step 120 (S120), the worker extends the length of the steel material H so that the amount of protrusion from the left rail to the pier B side and the amount of protrusion from the right rail to the pier A side are approximately equal. In, the steel material H is moved (FIG. 6(H)). That is, the worker moves the steel material H so that it is in a state before the steel material H is brought closer to either the left rail or the right rail.
As described above, according to the transportation method in the present embodiment, the steel material H can be transported while efficiently avoiding the bridge pier that becomes an obstacle. In this transportation method, the order in which the steel material H is moved to the right rail and then to the left rail has been described as a specific example, but the steel material H may be moved to the left rail and then to the right rail. In addition, in the present transportation method, the case where the obstacles on the left rail side and the right rail side are avoided has been described as a specific example, but the present invention is applicable even when there is an obstacle on only the left rail side or the right rail side. be able to.

As described above, the transporting device 1 of the present embodiment is a moving operation for transporting the steel material H from the depth side to the front side by rotatably connecting the first member 10 and the second member 20, and It is possible to transport the steel material H while avoiding the pier by combining the moving operation of moving the steel material H to one of the left rail and the right rail and the rotating operation of relatively rotating the first member 10 and the second member 20. it can.
Further, since the transport device 1 does not need to use a crane when transporting the steel material H, the steel material H can be transported even at a site where the ceiling is low and there is no margin for winding the hook.

Further, in the carrying device 1, the first member 10 and the second member 20 are configured in substantially the same manner, so that the manufacturing cost can be suppressed and the manufacturing time can be shortened.
Further, according to the carrying method of the present embodiment, the worker mainly uses the operation of sliding the steel material H placed on the carrying device 1 in the carrying direction, and therefore uses a conventional crane. Compared to the transportation method, the transportation work can be performed safely. Furthermore, since no crane is used, no slinging work is required.

In the above embodiment, the case where the steel material H is transported by the transportation device 1 arranged on the rail has been described as a specific example, but the steel material H may be transported by the transportation device 1 arranged on the road surface. When the steel material H is transported by the transportation device 1 arranged on the road surface, the first member 10 and the second member 20 may be switched upside down.

DESCRIPTION OF SYMBOLS 1... Carrying device 10... 1st member 20... 2nd member 30... Connection part 302... Connection bolt hole 304... Connection bolt 100, 200... Main body 102, 202... Roll 104, 204... Handle 120, 220... Guide part 122, 222... Guide frame 124... Guide roll 226... Stepped guide roll 130, 230... Distance changing unit

Claims (7)

A first member provided with a first roll that rotates in the length direction of the long heavy object;
A second member provided with a second roll that rotates in the carrying direction of the long heavy object;
A carrying device comprising: a connecting portion that connects the first member and the second member so as to be rotatable relative to each other. The first member is provided above the second member,
The connecting portion is a rotation plane obtained by rotating the shaft of the first roll provided on the first member around the connecting portion, and a second plane provided on the second member around the connecting portion. The transporting device according to claim 1, wherein the first member and the second member are connected so that a rotation plane obtained by rotating the axis of the second roll is substantially parallel. Guide portions located in the axial direction of the first roll and arranged on both sides of the first roll,
A distance changing unit that changes a distance between the first roll and the guide unit,
The transport device according to claim 2, wherein the guide portions are arranged on both sides of the long heavy object and are in contact with the long heavy object when the long heavy object is transported. Further comprising second guide portions located in the axial direction of the second roll and arranged on both sides of the second roll,
The second member is arranged on a rail for carrying a long object in a carrying direction of the long object when carrying the long object.
The transport device according to claim 3, wherein the second guide portions are arranged on both sides of the rail and are in contact with the rail when transporting a long heavy object. The long heavy objects and rails are H-shaped steel materials,
The second guide portion is a stepped roll,
The carrying device according to claim 4, wherein the second guide portions are arranged on both sides of the flange of the H-shaped steel material so as to come into contact with the one flange of the H-shaped steel material and rotate in the carrying direction of the long heavy object. A first member provided with a first roll that rotates in the length direction of the long heavy object, a second member provided with a second roll that rotates in the transport direction of the long heavy object, and Using a first carrying device and a second carrying device having a connecting portion that connects a first member and the second member so that they can rotate relative to each other,
The one long end of the long heavy object is placed on the first carrying device, and the other end of the long heavy object is placed on the second carrying device. Moving in the length direction of the long heavy object toward the first carrying device,
A step of moving the other end of the long heavy object in the carrying direction while rotating the long heavy object moved toward the first carrying device with the first carrying device as a center. When,
And a step of returning the long heavy object moved to the first carrying device or the second carrying device to a state before moving. In a state where the long heavy object is moved toward the first carrying device, after moving the other end of the long heavy object in the carrying direction,
Moving the long heavy object toward the second carrying device in the length direction of the long heavy object,
A step of moving one end of the long heavy object in the carrying direction while rotating the long heavy object moved toward the second carrying device around the second carrying device. The transportation method according to claim 6, further comprising:

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