Pile-mounting movement device and pile-mounting movement method

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

[Technical Field]

[0001] The present invention relates to a pile moving device and a method for moving a pile moving device. [Background technology]

[0002] Conventionally, pile climbing devices that travel on existing pile rows have been used at construction sites, etc. Pile climbing devices are called unit runners, and are equipped with an electric unit or the like to travel on existing pile rows.

[0003] Patent Document 1 describes a pile climbing device equipped with a bogie structure that swings multiple wheels up and down so that the device can travel stably while overcoming height differences (steps) in existing pile rows. The pile climbing device in Patent Document 1 also has a pair of guide parts that sandwich the existing pile row from both the left and right sides. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 5027006 Summary of the Invention [Problem to be solved by the invention]

[0005] Figure 5 is a schematic diagram showing the configuration of a swivel frame 102 and a swing frame 104 provided in the pile climbing mobile device 100 of Patent Document 1. The swivel frame 102 is rotatably mounted on a main frame 106, and is equipped with a pair of guide members 108. The swing frame 104 is equipped with wheels 110, hangs down from the swivel frame 102, and is swingable in the up and down direction. The swing frame 104 is supported on the swivel frame 102 by fixing pins 112.

[0006] As described above, the bogie structure of the pile moving device 100 of Patent Document 1 is divided into two drive units, namely, a first drive unit and a second drive unit. The first drive unit is a drive unit including a swing frame 104 that moves the wheels 110 up and down. The second drive unit is a drive unit including a swivel frame 102 that supports the swing frame 104 and performs a swivel movement. For this reason, the bogie structure of the pile moving device 100 of Patent Document 1 is a two-stage structure, has a large number of parts, and is a complex structure.

[0007] Therefore, an object of the present invention is to provide a pile-mounting moving device and a method for moving the pile-mounting moving device that have a simple structure and can move smoothly and stably over existing pile rows. [Means for solving the problem]

[0008] The pile-mounting moving device of the present invention is a pile-mounting moving device that has wheels in the front-to-back direction and moves over an existing pile row by rotating the wheels, and is equipped with a main frame having a pair of front-to-rear frames extending in the front-to-rear direction, a movable part that is provided between the pair of front-to-rear frames and rotates around an axis in the left-to-right direction of the main frame, and a drive part that has the wheels provided so as to be located below the main frame and has a pair of guide parts that sandwich the left and right sides of the existing pile row, and is connected to the underside of the movable part so as to rotate around an axis in the up-down direction of the main frame.

[0009] According to this configuration, the wheels and guide unit are integrated into a drive unit. The drive unit is connected to the main frame via a movable unit so as to perform pendulum and pivotal motion relative to the main frame. Therefore, the pile climbing movement device of this configuration can move smoothly and stably over existing pile rows with a simple structure. Furthermore, because the wheels and guide unit are integrated into a drive unit, the pile climbing movement device of this configuration has a reduced overall height and a lower center of gravity compared to conventional pile climbing movement devices, allowing for more stable travel.

[0010] In the pile climbing device of the present invention, the main frame may be provided with a limiting member that limits the rotation of the movable unit when the rotation angle of the movable unit reaches a predetermined angle. With this configuration, it is possible to limit the pendulum movement of the wheels and guide unit at an angle greater than necessary.

[0011] In the pile moving device of the present invention, at least one of the limiting member and the movable part may be provided with a detachable and replaceable wear-resistant member at a contact point between the limiting member and the movable part. With this configuration, it is possible to prevent wear on the contact surface due to multiple contacts between the limiting member and the movable part.

[0012] In the pile climbing device of the present invention, two or more wheels may be provided in the front-rear direction for each drive unit, and the center positions of the rotation axes of the wheels may be fixed relative to the drive unit. According to this configuration, the two or more wheels provided in the front-rear direction also rotate together with the drive unit that performs pendulum motion without moving relative to each other, making it easier to overcome differences in height between existing pile rows.

[0013] In the pile-mounting movement device of the present invention, two or more wheels may be provided in the front-rear direction for each drive unit, and the front-rear distance between the wheels may be set to correspond to the distance between the existing piles. With this configuration, it is possible to prevent the wheels from coming off the existing pile row.

[0014] In the pile-mounting movement device of the present invention, the width of the wheels may be set to a width corresponding to the diameter of the existing piles. With this configuration, it is possible to prevent the wheels from coming off the existing pile row.

[0015] The method for moving a pile-mounting moving device of the present invention is a method for moving a pile-mounting moving device that includes a main frame having a pair of front and rear frames extending in the front-to-rear direction, a movable part that is arranged between the pair of front and rear frames and rotates around an axis in the left-right direction of the main frame, and a drive part that has wheels located on the underside of the main frame and a pair of guide parts that sandwich the left and right sides of the existing pile row and is connected to the underside of the movable part so as to rotate around an axis in the up-down direction of the main frame, wherein the pile-mounting moving device is placed above the existing pile row and moved over the existing pile row by rotating the wheels of the pile-mounting moving device. [Effects of the Invention]

[0016] According to the present invention, existing pile rows can be moved smoothly and stably with a simple structure. [Brief explanation of the drawings]

[0017] [Figure 1] FIG. 1 is a schematic diagram of the pile moving device of this embodiment, in which FIG. 1(A) is a side view, FIG. 1(B) is a top view, and FIG. 1(C) is a front view. [Figure 2] FIG. 2 is an enlarged perspective view of the drive unit and its surroundings. [Figure 3] 3A and 3B are diagrams showing the configuration of the rotation stopper, in which FIG. 3A is a top view of the arrangement position of the rotation stopper, and FIG. 3B is an E-E cross-sectional view of FIG. 3A. [Figure 4] Figure 4 is a diagram showing a configuration for restricting rotation when the movable part is cylindrical, where Figure 4(A) shows an example in which part of the movable part is formed flat, and Figure 4(B) shows an example in which a planar member is provided on part of the movable part. [Figure 5] FIG. 5 is a schematic diagram of a conventional pile moving device. DETAILED DESCRIPTION OF THE INVENTION

[0018] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Note that the embodiment described below shows an example of how the present invention can be implemented, and the present invention is not limited to the specific configuration described below. When implementing the present invention, a specific configuration corresponding to the embodiment may be appropriately adopted.

[0019] 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 periphery of a drive unit 18 provided in the pile moving device 10. In this embodiment, "front" refers to the direction in which the pile moving device 10 moves, and "rear" refers to the direction opposite to the direction in which it moves. Furthermore, "left" and "right" refer to directions perpendicular to the front-rear direction.

[0020] The pile climbing moving device 10 is equipped with a plurality of wheels 12 in the front-rear direction, and is a device that moves over an existing pile row by rotating the wheels 12, and transports a transported object 60. The existing pile row is a row of existing piles 62 such as steel pipes or steel sheet piles that are embedded in the ground in a row. Note that there is no limitation on the type of existing piles 62. Furthermore, the transported object 60 is, for example, a unit device such as a hydraulic unit device or a welding unit device, but is not limited to these.

[0021] The pile moving device 10 of this embodiment includes a main body frame 14, a movable part 16, and a drive part 18.

[0022] The main frame 14 is composed of 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 intermediate frames 24 joined to intermediate portions of the pair of front and rear frames 20. The transported article 60 is placed on the main frame 14.

[0023] The movable section 16 is provided between the pair of front and rear frames 20 and is rotatable in the left-right direction around axis A. Specifically, one movable section 16 is provided between each end frame 22 and intermediate frame 24 and is fixed to the front and rear frames 20 by a rotation shaft 17. In other words, two movable sections 16 are provided in the front-rear direction of the main body frame 14 and rotate relative to the main body frame 14 around the rotation shaft 17 as axis A.

[0024] The left-right direction here is, in other words, a direction perpendicular to the extension direction of the front and rear frames 20. In addition, the movable part 16 in this embodiment has, as an example, a rectangular parallelepiped shape extending in the left-right direction, but is not limited to this and may have a cylindrical shape, etc.

[0025] The driving unit 18 is provided with wheels 12 positioned below the main body frame 14, and is also provided with a pair of guide units 26 that sandwich the left and right sides of the existing pile row. The driving unit 18 is connected to the underside of the movable unit 16 so as to rotate about an axis B in the up-and-down direction of the main body frame 14. Specifically, the driving unit 18 is fixed to the movable unit 16 by a rotation shaft 19. In other words, two driving units 18 are provided in the front-to-back direction of the main body frame 14 via the movable units 16, and rotate about the rotation shaft 19 relative to the main body frame 14.

[0026] In this embodiment, two wheels 12 are provided in the front-rear direction below the drive unit body 28. The wheels 12 are driven to rotate by, for example, an electric motor. This allows the pile moving device 10 of this embodiment to move autonomously over the existing pile row.

[0027] The guide unit 26 of this embodiment comprises a pair of side frames 30 that are elongated in the vertical direction from the drive unit main body 28, and includes a roller unit 32 and a sled unit 34. The roller unit 32 has multiple wheels 36 in the front-to-rear direction, and the wheels 36 abut against the side surfaces of the existing pile row. The sled unit 34 is a plate-like member with curved ends in the front-to-rear direction, and abuts against the side surfaces of the existing pile row.

[0028] In this embodiment, the guide portion 26 has the roller portion 32 on the lower side and the sled portion 34 on the upper side, but the up-down direction may be reversed. Also, the guide portion 26 may have only one roller portion 32 or one sled portion 34, or may have three or more roller portions 32 or one sled portion 34 in the up-down direction.

[0029] In this embodiment, the driving unit 18 is connected to the underside of the movable unit 16, and performs pendulum motion in the direction of arrow C in Fig. 2 as the movable unit 16 rotates. In other words, if there is a step in the existing pile row, the driving unit 18 performs pendulum motion, causing the wheels 12 to move up and down and absorbing vibrations and shocks, allowing the pile-mounting moving device 10 to move over the step in the existing pile row.

[0030] 2. In addition, the driving unit 18 rotates in the direction of arrow D in Fig. 2 relative to the movable unit 16. In other words, if there is a curve in the existing pile row, the driving unit 18 performs a swiveling motion, so the pile moving device 10 can move while swiveling along the curve of the existing pile row. In addition, the guide unit 26 provided on the driving unit 18 also performs a pendulum motion in accordance with the pendulum motion of the driving unit 18, and swivels in accordance with the swiveling motion of the driving unit 18.

[0031] In this way, the pile-mounting movement device 10 of this embodiment has a bogie function in the main frame 14. The wheels 12 and guide unit 26 are integrally constructed, and the lower drive unit 18 performs pendulum motion together with the guide unit 26, with the rotation axis 17 provided on the main frame 14 as the fulcrum. Therefore, the pile-mounting movement device 10 of this embodiment can move smoothly and stably over existing pile rows with a simple structure.

[0032] It is also possible to simply move the drive unit 18 up and down so that the wheels 12 overcome the steps in the existing pile row. However, in this configuration, the guide unit 26 also moves up and down together with the drive unit 18, and a vertical load is applied to the guide unit 26 between the side of the existing pile 62. This vertical load is undesirable from the perspective of the durability of the guide unit 26 and can also lead to abrasions, noise, and loss of driving force due to friction between the abutting existing pile 62 and the guide unit 26. On the other hand, in the pile-mounting device 10 of this embodiment, the guide unit 26 provided in the drive unit 18 performs pendulum motion, so the vertical load applied to the guide unit 26 is relatively small, which suppresses any impact on the durability of the guide unit 26 and also contributes to quieter construction and the preservation and safety of the existing pile 62.

[0033] Furthermore, the pile moving device 10 of this embodiment has an integrated structure in which the wheels 12 and the guide unit 26 are integrated into the drive unit 18, making the structure simpler and stronger than the conventional pile moving device 100. Furthermore, because the overall height is kept low and the center of gravity is low, the pile moving device 10 can travel stably even if the weight of the structure (electric unit, etc.) loaded on the pile moving device 10 increases.

[0034] Furthermore, by integrating the drive unit 18, the pile moving device 10 has a smaller overall width and is lighter in weight than the conventional pile moving device 100. Furthermore, since the pile moving device 10 of this embodiment has a simple configuration, it can be manufactured at lower cost than the conventional pile moving device 100 and has improved durability.

[0035] Furthermore, in the conventional pile-mounting moving device 100 shown in Fig. 5, the two wheels 110 provided in the front-rear direction are each capable of swinging in different directions, and the center position of the rotation axis of the wheels 110 is not fixed. For this reason, with the conventional pile-mounting moving device 100, the wheels 110 may not necessarily swing in the appropriate direction when moving over an existing pile row that has differences in elevation, and in such cases it becomes difficult to overcome the differences in elevation of the existing pile row.

[0036] On the other hand, the center position 13 of the rotation axis of the wheels 12 in this embodiment is fixed relative to the drive unit 18. As a result, the two wheels 12 provided in the front-to-rear direction rotate together with the pendulum motion of the drive unit 18 (circular movement including vertical and front-to-rear movement relative to the pile moving device 10). In other words, the two wheels 12 provided in the front-to-rear direction in this embodiment rotate together with the drive unit 18, which performs pendulum motion, without moving relative to each other. Therefore, compared to the conventional pile moving device 100, the pile moving device 10 of this embodiment has less resistance when the wheels 12 come across a step, making it easier to overcome differences in elevation in existing pile rows and allowing the pile moving device 10 to move smoothly.

[0037] Fig. 3 is a configuration diagram of the rotary stopper 40 provided in the pile moving device 10 of this embodiment. Fig. 3(A) is a top view of the arrangement position of the rotary stopper 40, and Fig. 3(B) is an E-E cross-sectional view of Fig. 3(A).

[0038] The rotation stopper 40 is a limiting member that limits the rotation of the movable part 16 when the rotation angle of the movable part 16 reaches a predetermined angle. This rotation stopper 40 can limit the pendulum motion of the wheel 12 and the guide part 26 at an angle greater than necessary.

[0039] The rotation stopper 40 has a flat portion 40A that is parallel to the side surface of the movable portion 16, and is provided at the connecting portion of the movable portion 16 with the front and rear frames 20. The rotation stopper 40 may be provided at both ends of the movable portion 16, or at one end.

[0040] In order to prevent the movable part 16 and the rotary stopper 40 from coming into contact with each other multiple times during travel of the pile-mounting moving device 10 and causing wear on the contact surface, it is preferable to provide a wear-resistant member 50 at the contact point of at least one of the movable part 16 and the rotary stopper 40. In particular, on the rotary stopper 40 side, the movable part 16 has an acute angle / obtuse angle in cross section, which comes into contact with the rotary stopper 40, so it is preferable to provide the wear-resistant member 50 at least on the rotary stopper 40 (particularly the flat surface portion 40A).

[0041] Moreover, it is preferable that the wear-resistant member 50 is detachable from the movable part 16 or the rotation stopper 40. By making the wear-resistant member 50 detachable, damaged or worn parts can be quickly replaced, which leads to improved construction efficiency.

[0042] When the rotation angle of movable part 16, which is shaped like a rectangular parallelepiped, reaches a predetermined angle, rotation stopper 40 restricts the rotation of movable part 16 by contacting a corner of movable part 16 (movable part 16 indicated by a dashed line in FIG. 5 ) with a flat surface 40A of rotation stopper 40. By adjusting gap G between movable part 16 and rotation stopper 40, the maximum rotation angle of movable part 16 can be adjusted.

[0043] The reason for limiting the rotation angle of the movable part 16 is to reduce the amount of drop when part of the wheel 12 drops into a gap between successive existing piles 62. If the wheel 12 drops into the gap significantly, the mechanism itself will effectively increase the step between the existing piles 62, resulting in the vehicle being unable to travel or requiring a large driving force to overcome the step.

[0044] For this reason, the pile-mounting moving device 10 of this embodiment is provided with a rotation stopper 40, which allows it to accommodate unevenness in the top ends of existing piles 62 due to variations in construction, and rotates at the minimum necessary rotation angle so as not to fall too far into the gap.

[0045] 5, the running stability of the pile moving device 100 is ensured by welding a running support plate to the top end of the piles 62 that connects the existing piles 62. However, the pile moving device 10 of this embodiment having the above configuration can ensure running stability while eliminating the need for a running support plate.

[0046] The rotation stopper 40 of this embodiment may have other configurations as long as the corners of the movable part 16 and the flat surface 40A of the rotation stopper 40 come into contact with each other to limit the amount of rotation of the movable part 16.

[0047] 4A and 4B are diagrams illustrating a configuration for restricting rotation when the movable part 16 has a cylindrical shape. Fig. 4A shows an example in which a portion of the cylindrical movable part 16 is formed flat. In this shape, the end of the flat part 16A comes into contact with the flat part 40A of the rotation stopper 40.

[0048] 4(B), the cylindrical movable part 16 may have a shape combined with a planar member 52 joined to its side surface. In such a shape, the corners of the planar member 52 of the movable part 16 come into contact with the planar part 40A of the rotation stopper 40. For this reason, it is preferable that the planar member 52 be detachable from the movable part 16 so that it can be replaced due to wear.

[0049] Furthermore, in the pile moving device 10 of this embodiment, the front-to-rear distance between the two wheels 12 provided on the drive unit 18 (hereinafter referred to as "wheel distance") is set to a distance that corresponds to the existing pile row. The distance that corresponds to the existing pile row is a distance that corresponds to the shape (e.g., inner diameter and outer diameter) of the existing piles 62 that make up the existing pile row.

[0050] That is, the pile climbing movement device 10 of this embodiment can prevent the wheels from coming off the existing pile row by adjusting the wheel spacing according to the shape and spacing of the existing piles 62.

[0051] This adjustment can be done in several ways, such as by having multiple types of drive units 18 with different wheel spacings in advance and assembling a drive unit 18 with an appropriate wheel spacing according to the existing pile row to the pile moving device 10, or by changing the wheel spacing by moving the rotation center axes of the two wheels 12 in the forward and backward directions according to the existing pile row.

[0052] By setting the wheel spacing appropriately, the pile-mounted moving device 10 of this embodiment can ensure running stability while eliminating the need for the above-mentioned running support plate.

[0053] The width of the wheels 12 may also be set to a width corresponding to the diameter of the existing pile 62. The width of the wheels 12 here refers to the width in the left-right direction. In other words, the wheels 12 are configured to be replaceable with wheels 12 of an appropriate width corresponding to the diameter of the existing pile 62. This makes it possible for the pile-mounting moving device 10 of this embodiment to prevent the wheels from slipping off the existing pile row.

[0054] As described above, in the pile moving device 10 of this embodiment, the wheels 12 and the guide unit 26 are integrally constructed as the drive unit 18. The drive unit 18 is connected to the main frame 14 via the movable unit 16 so as to perform pendulum and pivotal motion relative to the main frame 14. Therefore, the pile moving device 10 of this embodiment can move over existing pile rows with a simple structure. Furthermore, because the pile moving device 10 of this embodiment has an integral structure of the wheels 12 and the guide unit 26 as the drive unit 18, the overall height is reduced and the center of gravity is lowered compared to the conventional pile moving device 100, allowing for more stable travel.

[0055] Although the present invention has been described above using the above-mentioned embodiment, the technical scope of the present invention is not limited to the scope described in the above-mentioned embodiment. Various changes or improvements can be made to the above-mentioned embodiment without departing from the gist of the invention, and such changes or improvements are also included in the technical scope of the present invention.

[0056] For example, the pile climbing moving device 10 of this embodiment has been described as having two drive units 18 in the front-to-rear direction of the main frame 14, but the present invention is not limited to this. For example, one drive unit 18 or three or more drive units 18 may be provided for the main frame 14. Also, three or more wheels 12 may be provided for one drive unit 18 in the front-to-rear direction. [Explanation of symbols]

[0057] 10 Pile moving device 12 wheels 14 Main frame 16 Moving parts 18 Drive unit 20 Front and rear frames 26 Guide section 40 Rotation stopper (restriction member) 50 Wear-resistant materials 62 Existing piles

Claims

1. A pile-mounted moving device that has wheels in the front and rear directions and moves on an existing pile row by rotating the wheels, a main body frame having a pair of front and rear frames extending in the front-rear direction; a movable portion provided between the pair of front and rear frames and rotatable about an axis extending in the left-right direction of the main body frame; The wheels are provided to be positioned below the main body frame, and a pair of guide parts are provided to sandwich both the left and right sides of the existing pile row, and a drive part is connected to the underside of the movable part so as to rotate around an axis in the vertical direction of the main body frame; A pile moving device comprising:

2. The pile moving device according to claim 1 , wherein the main body frame is provided with a limiting member that limits the rotation of the movable part when the rotation angle of the movable part reaches a predetermined angle.

3. The pile moving device according to claim 2 , wherein at least one of the limiting member and the movable part is provided with a detachable and replaceable wear-resistant member at a contact point with the limiting member.

4. Two or more wheels are provided in the front-rear direction for each drive unit, The pile moving device according to claim 1 , wherein the center position of the rotation axis of the wheel is fixed relative to the drive unit.

5. Two or more wheels are provided in the front-rear direction for each drive unit, The pile-mounting movement device according to any one of claims 1 to 4, wherein the front-to-rear spacing of the wheels is set to a spacing that corresponds to the existing piles.

6. The pile climbing movement device according to any one of claims 1 to 5, wherein the width of the wheels is set to a width corresponding to the diameter of the existing pile.

7. A method for moving a pile moving device comprising: a main 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 around an axis in the left-right direction of the main frame; and a drive part having wheels provided below the main frame and a pair of guide parts provided to sandwich the left and right sides of the existing pile row, and connected to the underside of the movable part so as to rotate around an axis in the up-down direction of the main frame, The pile moving device is placed on top of the existing pile row, The pile moving device is moved over the existing pile row by rotating the wheels of the pile moving device. Method for moving a pile-mounted moving device.

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