JP2023144817A - Moving device on pile and moving method of moving device on pile - Google Patents

Abstract

To provide a moving device on piles and a moving method of the moving device on piles capable of moving on an existent pile row in a simple configuration.SOLUTION: A moving device 10 on piles is provided with; a body frame 14 having a pair of front and rear frames extending in a longitudinal direction; a moveable part 16 provided between the pair of front and rear frames 20 and rotating around a right/left direction of the body frame 14 as an axis; and a driving unit 18 provided with wheels 12 positioned on a lower side of the body frame 14 and a pair of guide parts 26 clamping both of right and left sides of an existing pile row, and connected on a lower side of the moveable part 16 so as to rotate around a vertical direction of the body frame 14 as an axis.SELECTED DRAWING: Figure 1

Description

The present invention relates to a pile moving device and a method for moving the pile moving device.

BACKGROUND ART Conventionally, pile moving devices that run on existing pile rows have been used at construction sites and the like. The pile moving device is called a unit runner, and is equipped with an electric unit or the like and runs on the existing pile row.

Patent Document 1 describes a pile moving device that has a bogie structure that swings a plurality of wheels in the vertical direction so that it can run stably while overcoming the height difference (step) of an existing pile row. There is. The pile moving device of Patent Document 1 also includes a pair of guide parts that sandwich the existing pile row from both left and right sides.

Patent No. 5027006

FIG. 5 is a schematic configuration diagram showing the swing frame 102 and the swing frame 104 included in the pile moving device 100 of Patent Document 1. The rotating frame 102 is rotatably provided on the main body frame 106, and a pair of guide portions 108 are attached thereto. The swinging frame 104 has wheels 110 attached thereto, and is provided to be suspended from the swinging frame 102 so as to be swingable in the vertical direction. Note that the swing frame 104 is supported by the swing frame 102 by a fixed pin 112.

In this way, the bogie structure of the pile moving device 100 of Patent Document 1 is divided into two drive parts, such as the first drive part and the second drive part. Note that the first drive section is a drive section that includes a swing frame 104 that moves the wheels 110 up and down. The second drive section is a drive section that includes a swing frame 102 that supports a swing frame 104 and performs a swing motion. For this reason, the bogie structure of the pile moving device 100 of Patent Document 1 has a two-stage structure, has a large number of parts, and has a complicated structure.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a pile moving device and a method for moving the pile moving device, which can move smoothly and stably on an existing pile row with a simple structure.

The pile moving device of the present invention is a pile moving device that is equipped with wheels in the front-rear direction and moves over an existing pile row by rotation of the wheels, and has a main body frame having a pair of front and rear frames extending in the front-rear direction. a movable part that is provided between the pair of front and rear frames and rotates about the left-right direction of the main body frame; and the wheel is provided below the main body frame, and the existing A pair of guide parts are provided to sandwich the left and right sides of the pile row, and a drive part is connected to the lower side of the movable part so as to rotate about the vertical direction of the main body frame.

According to this configuration, the wheel and the guide section are integrated as a drive section. The drive section is connected to the main body frame via the movable section so as to perform pendulum and pivot movements relative to the main body frame. Therefore, the pile moving device of this configuration can move smoothly and stably on the existing pile row with a simple structure. In addition, the pile moving device with this configuration has an integrated structure with the wheels and the guide part as the drive unit, so compared to conventional pile moving devices, the overall height is suppressed and the center of gravity is lower, allowing for more stable running. Become.

In the pile moving device of the present invention, the main body frame may be provided with a restriction member that limits rotation of the movable portion when the rotation angle of the movable portion reaches a predetermined angle. According to this configuration, it is possible to restrict the pendulum movement of the wheels and the guide part at an angle more than necessary.

In the pile moving device of the present invention, at least one of the limiting member and the movable portion may include a detachable and replaceable wear-resistant member at a location where they abut each other. According to this configuration, it is possible to prevent the limiting member and the movable portion from coming into contact with each other multiple times and causing wear and tear on the contact surface.

In the pile moving device of the present invention, two or more of the wheels may be provided in the front-rear direction for each drive unit, and the center position of the rotation axis of the wheel may be fixed with respect to the drive unit. . According to this configuration, two or more wheels provided in the front-rear direction also rotate together without moving relative to each other with respect to the drive unit that moves in an oscillating manner, so that the difference in height of the existing pile row can be reduced. It becomes easier to overcome.

In the pile moving device of the present invention, two or more of the wheels may be provided in the front-rear direction for each drive unit, and the intervals between the wheels in the front-rear direction may be set according to the existing piles. According to this configuration, derailment from the existing pile row can be suppressed.

In the pile moving device of the present invention, the width of the wheel may be set according to the diameter of the existing pile. According to this configuration, derailment from the existing pile row can be suppressed.

The moving method of the pile moving device of the present invention includes: a main body frame having a pair of front and rear frames extending in the front-rear direction; a movable part that rotates about the vertical direction of the main body frame, and a pair of guide parts that sandwich the left and right sides of the existing pile row. a driving part connected to the lower side of the movable part, the method for moving a pile moving device, the method comprising: disposing the pile moving device on an existing pile row; is moved on the existing pile row by rotating the wheels of the pile.

According to the present invention, existing pile rows can be moved smoothly and stably with a simple structure.

FIG. 1 is a schematic diagram of the pile moving device of this embodiment, with FIG. 1(A) being a side view, FIG. 1(B) being a top view, and FIG. 1(C) being a front view. FIG. 2 is an enlarged perspective view of the vicinity of the drive unit. FIG. 3 is a configuration diagram of the rotation stopper, FIG. 3(A) is a top view of the arrangement position of the rotation stopper, and FIG. 3(B) is a sectional view taken along line EE in FIG. 3(A). . FIG. 4 is a configuration diagram for restricting rotation when the movable part has a cylindrical shape, and FIG. B) is an example in which a flat member is provided in a part of the movable part. FIG. 5 is a schematic configuration diagram of a conventional pile moving device.

Embodiments of the present invention will be described below with reference to the drawings. In addition, the embodiment described below shows an example of the case where the present invention is implemented, and the present invention is not limited to the specific configuration described below. In implementing the present invention, specific configurations depending on the embodiments may be adopted as appropriate.

FIG. 1 is a schematic diagram of a pile moving device 10 of this embodiment. FIG. 1(A) is a side view of the pile moving device 10. FIG. 1(B) is a top view of the pile moving device 10. FIG. 1(C) is a front view of the pile moving device 10. FIG. 2 is an enlarged perspective view of the vicinity of the drive unit 18 included in the pile moving device 10. In this embodiment, "front" is the traveling direction of the pile moving device 10, and "back" is the opposite direction to the traveling direction. Further, left and right are directions perpendicular to the front-rear direction.

The pile moving device 10 is a device that is equipped with a plurality of wheels 12 in the front-rear direction, moves over an existing pile row by rotation of the wheels 12, and conveys an object 60. The existing pile row is a row of existing piles 62 such as steel pipes and steel sheet piles embedded in the ground in a row. Note that the type of existing pile 62 is not limited. Further, the conveyed object 60 is, for example, a unit device such as a hydraulic unit device or a welding unit device, but is not limited thereto.

The pile moving device 10 of this embodiment includes a main body frame 14, a movable section 16, and a drive section 18.

The main body frame 14 includes a pair of front and rear frames 20 extending in the front-rear direction, a pair of end frames 22 joined to both ends of the pair of front and rear frames 20, and two end frames 22 joined to the middle portions of the pair of front and rear frames 20. It is constituted by an intermediate frame 24. The conveyed object 60 is placed on the main body frame 14 .

The movable part 16 is provided between the pair of front and rear frames 20, and is rotatable about the axis A in the left-right direction. Specifically, one movable part 16 is provided between the end frame 22 and the intermediate frame 24, and is fixed to the front and rear frames 20 by a rotating shaft 17. That is, two movable parts 16 are provided in the front-rear direction of the main body frame 14, and rotate with respect to the main body frame 14 with the rotating shaft 17 as the axis A.

In other words, the left-right direction here is a direction perpendicular to the extending direction of the front and rear frames 20. Further, the movable portion 16 of the present embodiment has, for example, a rectangular parallelepiped shape extending in the left-right direction, but is not limited to this, and may have a cylindrical shape or the like.

The drive section 18 is provided with wheels 12 located below the main body frame 14, and is provided with a pair of guide sections 26 that sandwich the left and right sides of the existing pile row. The drive unit 18 is connected to the lower side of the movable unit 16 so as to rotate about the vertical direction of the main body frame 14 as an axis B. Specifically, the drive section 18 is fixed to the movable section 16 by a rotating shaft 19. That is, two driving parts 18 are provided in the front-rear direction of the main body frame 14 via the movable part 16, and rotate with respect to the main body frame 14 with the rotating shaft 19 as the axis B.

Two wheels 12 in this embodiment are provided in the front and back direction below the drive unit main body 28. Further, the wheels 12 are rotationally driven by, for example, an electric motor. Thereby, the pile moving device 10 of this embodiment moves by itself on the existing pile row.

The guide section 26 of this embodiment includes a roller section 32 and a sled section 34 on a pair of side frames 30 that are elongated in the vertical direction from the drive section main body 28 . The roller section 32 includes a plurality of wheels 36 in the front-rear direction, and the wheels 36 abut against the side surfaces of the existing pile rows. The sled portion 34 is a plate-like member with warped ends in the front-rear direction, and abuts against the side surface of the existing pile row.

Note that although the guide portion 26 of this embodiment includes the roller portion 32 on the lower side and the sled portion 34 on the upper side, the vertical direction may be reversed. Further, the guide portion 26 may include only one roller portion 32 or sled portion 34, or may include three or more roller portions 32 or sled portions 34 in the vertical direction.

The drive unit 18 of this embodiment is connected to the lower side of the movable unit 16 and performs a pendulum movement in the direction of arrow C in FIG. 2 as the movable unit 16 rotates. That is, if there is a step in the existing pile row, the drive unit 18 performs a pendulum motion to move the wheels 12 up and down to absorb vibrations and shocks, so that the pile moving device 10 can climb over the step in the existing pile row. can be moved.

Further, the drive section 18 rotates in the direction of arrow D in FIG. 2 relative to the movable section 16. That is, when the existing pile row has a curve, the drive unit 18 makes a turning movement, so the pile moving device 10 can move while turning along the curve of the existing pile row. Note that the guide section 26 provided in the drive section 18 also makes a pendulum movement in accordance with the pendulum movement of the drive section 18, and rotates in accordance with the rotation movement of the drive section 18.

In this way, the pile moving device 10 of this embodiment provides the main body frame 14 with a bogie function. Then, the wheels 12 and the guide section 26 are integrally constructed, and the lower drive section 18 makes a pendulum movement together with the guide section 26, using the rotating shaft 17 provided on the main body frame 14 as a fulcrum. For this reason, the pile moving device 10 of this embodiment can move smoothly and stably on the existing pile row with a simple structure.

Here, it is also possible to simply move the drive unit 18 up and down so that the wheels 12 can overcome the difference in level between the existing pile rows. However, in this form, the guide section 26 also moves up and down together with the drive section 18, and a vertical load is applied to the guide section 26 between it and the side surface of the existing pile 62. This vertical load is not preferable from the viewpoint of the durability of the guide section 26, and also leads to the occurrence of scratches, noise, and loss of driving force due to friction between the existing pile 62 and the guide section 26 that are in contact with each other. . On the other hand, in the pile moving device 10 of the present embodiment, the guide section 26 included in the drive section 18 makes a pendulum movement, so the vertical load applied to the guide section 26 becomes relatively small, and the load on the guide section 26 decreases. In addition to suppressing the impact on durability, it also leads to quieter construction and the preservation and security of the existing piles 62.

Moreover, since the pile moving device 10 of this embodiment has an integral structure in which the wheels 12 and the guide portion 26 are used as the drive portion 18, the structure is simpler and stronger than the conventional pile moving device 100. Moreover, since the overall height is suppressed and the center of gravity is lowered, even if the weight of the structure (such as an electric unit) loaded on the pile moving device 10 becomes large, the pile moving device 10 can run stably.

Further, the pile moving device 10 has a smaller overall width and is lighter in weight than the conventional pile moving device 100 due to the integration of the drive unit 18. Furthermore, since the pile moving device 10 of this embodiment has a simple configuration, it can be manufactured at lower cost and has improved durability compared to the conventional pile moving device 100.

Furthermore, in the conventional pile moving device 100 shown in FIG. 5, the two wheels 110 provided in the front and rear directions are each swingable in different directions, and the center position of the rotation axis of the wheel 110 is not fixed. do not have. For this reason, in the conventional pile moving device 100, the wheels 110 may not necessarily swing in an appropriate direction when moving on an existing pile row with a height difference, and in such a case, the existing pile moving device 100 It becomes difficult to overcome the difference in height between lines.

On the other hand, the center position 13 of the rotating shaft of the wheel 12 of this embodiment is fixed with respect to the drive unit 18. Thereby, the two wheels 12 provided in the front-rear direction rotate together with the pendulum movement of the drive unit 18 (arc movement including vertical and front-back movement with respect to the pile moving device 10). That is, the two wheels 12 provided in the front-rear direction of this embodiment rotate together without moving relative to each other with respect to the drive unit 18 that makes pendulum motion. Therefore, compared to the conventional pile moving device 100, the pile moving device 10 of this embodiment has less resistance when the wheels 12 hit a step, making it easier to overcome the difference in height of the existing pile row, and The movement of the upper moving device 10 becomes smooth.

FIG. 3 is a configuration diagram of the rotation stopper 40 included in the pile moving device 10 of this embodiment. FIG. 3(A) is a top view of the arrangement position of the rotation stopper 40, and FIG. 3(B) is a sectional view taken along line EE in FIG. 3(A).

The rotation stopper 40 is a restriction member that limits the rotation of the movable portion 16 when the rotation angle of the movable portion 16 reaches a predetermined angle. This rotation stopper 40 can restrict the pendulum movement of the wheel 12 and the guide portion 26 by an angle more than necessary.

The rotation stopper 40 includes a flat portion 40A that is parallel to the side surface of the movable portion 16, and is provided at a connecting portion of the front and rear frames 20 in the movable portion 16. Note that the rotation stopper 40 may be provided at both ends of the movable portion 16, or may be provided at one end.

In addition, in order to prevent the movable part 16 and the rotation stopper 40 from coming into contact with each other multiple times and causing wear and tear on the contact surfaces when the pile moving device 10 travels, at least one of the movable part 16 and the rotation stopper 40 is in contact with the other. It is preferable to provide a wear-resistant member 50 at the bottom. In particular, on the rotation stopper 40 side, the movable part 16 has an acute angle/obtuse angle in cross-sectional view and comes into contact with the rotation stopper 40. Therefore, it is preferable to provide the wear-resistant member 50 at least on the rotation stopper 40 (particularly the flat part 40A). preferable.

Further, it is preferable that the wear-resistant member 50 is removable from the movable part 16 or the rotation stopper 40. By making the wear-resistant member 50 removable, damaged or worn parts can be quickly replaced, leading to improved construction efficiency.

The rotation stopper 40 rotates between a corner of the movable part 16 (the movable part 16 indicated by the dashed line in FIG. 5) and the rotation stopper 40 when the rotation angle of the rectangular parallelepiped movable part 16 reaches a predetermined angle. Rotation of the movable part 16 is restricted by contact with the flat part 40A. By adjusting the gap G between the movable part 16 and the rotation stopper 40, the maximum rotation angle of the movable part 16 can be adjusted.

The reason why the rotation angle of the movable part 16 is limited is to reduce the amount of fall when a part of the wheel 12 falls into the gap between consecutive existing piles 62. If the wheels 12 fall significantly into the gap, the level difference between the existing piles 62 will be substantially increased by its own mechanism, and as a result, it will be unable to run or a large driving force will be required to get over the level difference.

For this reason, by providing the rotation stopper 40, the pile moving device 10 of the present embodiment can cope with irregularities in the tops of the existing piles 62 due to variations in construction, and can also provide the necessary minimum rotation angle that does not fall into the gap significantly. Rotate it with.

In addition, in the conventional pile moving device 100 as shown in FIG. 5, the running stability of the pile moving device 100 was ensured by welding a running auxiliary plate that connects the existing piles 62 to the top end. . However, in the pile moving device 10 of this embodiment having the above configuration, running stability can be ensured while eliminating the need for the running auxiliary plate.

Note that the rotation stopper 40 of this embodiment may have other configurations as long as the amount of rotation of the movable portion 16 can be limited by bringing the corner portion of the movable portion 16 into contact with the flat portion 40A of the rotation stopper 40.

FIG. 4 is a configuration diagram for restricting rotation when the movable part 16 has a cylindrical shape. FIG. 4A shows an example in which a part of the cylindrical movable part 16 is formed into a planar shape. In the case of such a shape, the end of the flat portion 16A and the flat portion 40A of the rotation stopper 40 come into contact with each other.

Further, as shown in FIG. 4(B), the cylindrical movable portion 16 may have a shape in which a planar member 52 joined to the side surface is combined. In the case of such a shape, the corner portion of the flat member 52 of the movable portion 16 and the flat portion 40A of the rotation stopper 40 come into contact with each other. Therefore, it is preferable that the planar member 52 is removable from the movable part 16 in order to enable replacement due to wear and tear.

In addition, in the pile moving device 10 of the present embodiment, the interval in the longitudinal direction of the two wheels 12 provided on the drive unit 18 (hereinafter referred to as "wheel interval") is set to be an interval corresponding to the existing pile row. . The interval according to the existing pile row is an interval according to the shape (for example, inner diameter and outer diameter) of the existing piles 62 that constitute the existing pile row.

That is, the pile moving device 10 of the present embodiment can suppress the wheels from coming off the existing pile row by adjusting the wheel interval according to the shape and interval of the existing piles 62.

Note that this adjustment can be carried out by using a method in which there are multiple types of drive units 18 with different wheel spacings, and a method for assembling the drive unit 18 with an appropriate wheel spacing according to the existing pile row into the pile moving device 10, or a method for attaching the drive unit 18 to the pile top moving device 10, which has a plurality of types of drive units 18 with different wheel intervals. Accordingly, there is a method of changing the wheel spacing by moving the rotation center axes of the two wheels 12 in the front-back direction.

In addition, by setting it as an appropriate wheel interval, the pile moving device 10 of this embodiment can ensure running stability while eliminating the need for the above-mentioned running auxiliary board.

Further, the width of the wheel 12 may be set according to the diameter of the existing pile 62. The width of the wheel 12 here refers to the width in the left-right direction. In other words, the wheel 12 can be replaced with a wheel 12 having an appropriate width depending on the diameter of the existing pile 62. Thereby, the pile moving device 10 of this embodiment can suppress derailment from the existing pile row.

As explained above, the pile moving device 10 of this embodiment has an integral structure in which the wheels 12 and the guide section 26 serve as the drive section 18. The drive section 18 is connected to the main body frame 14 via the movable section 16 so as to perform pendulum and pivot movements relative to the main body frame 14 . For this reason, the pile moving device 10 of this embodiment can move on an existing pile row with a simple structure. In addition, the pile moving device 10 of this embodiment has an integral structure with the wheels 12 and the guide portion 26 as the drive portion 18, so compared to the conventional pile moving device 100, the overall height is suppressed and the center of gravity is lower, making it more Stable running is possible.

Although the present invention has been described above using the above embodiments, the technical scope of the present invention is not limited to the range described in the above embodiments. Various changes or improvements can be made to the embodiments described above without departing from the gist of the invention, and forms with such changes or improvements are also included within the technical scope of the present invention.

For example, although the pile moving device 10 of this embodiment has been described as having two drive units 18 in the front and back direction of the main body frame 14, the present invention is not limited to this. For example, one or more driving parts 18 may be provided to the main body frame 14. Further, three or more wheels 12 may be provided in the front-rear direction for one drive unit 18.

10 Pile moving device 12 Wheel 14 Main body frame 16 Movable part 18 Drive part 20 Front and rear frames 26 Guide part 40 Rotation stopper (limiting member)
50 Wear-resistant members 62 Existing piles

Claims (7)

A pile moving device that is equipped with wheels in the front-rear direction and moves over an existing pile row by rotation of the wheels,
a main body frame having a pair of front and rear frames extending in the front-rear direction;
a movable part that is provided between the pair of front and rear frames and rotates about the left-right direction of the main body frame;
The wheels are provided so as to be located on the lower side of the main body frame, and a pair of guide parts are provided that sandwich both left and right sides of the existing pile row, and are configured to rotate about the vertical direction of the main body frame. a drive section connected to the lower side of the movable section;
A pile moving device equipped with. The pile moving device according to claim 1, wherein the body frame is provided with a limiting member that limits rotation of the movable portion when the rotation angle of the movable portion reaches a predetermined angle. The pile moving device according to claim 2, wherein at least one of the limiting member and the movable portion includes a detachable and replaceable wear-resistant member at a portion where they abut each other. Two or more wheels are provided in the front-rear direction for each drive unit,
The pile moving device according to any one of claims 1 to 3, wherein the center position of the rotation axis of the wheel is fixed with respect to the drive unit. Two or more wheels are provided in the front-rear direction for each drive unit,
The pile moving device according to any one of claims 1 to 4, wherein the distance between the wheels in the longitudinal direction is determined according to the size of the existing pile. The pile moving device according to any one of claims 1 to 5, wherein the width of the wheel corresponds to the diameter of the existing pile. a main body frame having a pair of front and rear frames extending in the front-rear direction; a movable part provided between the pair of front and rear frames and rotating about the left-right direction of the main body frame; A pair of guide parts are provided to sandwich the left and right sides of the existing pile row, and are connected to the lower side of the movable part so as to rotate about the vertical direction of the main body frame. A method for moving a pile moving device comprising:
placing the pile moving device on top of the existing pile row;
moving on the existing pile row by rotating the wheels of the pile moving device;
How to move the pile moving device.

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