Patent Application
20240207957
The present disclosure relates to a structure body cutting system, a structure body cutting method, and a cutter system.
In recent years, attention has been focused on a wind power generation device with reduced environmental burden. The wind power generation device that has passed its useful life is disassembled, and parts of the wind power generation device such as a blade are discarded. Since the blade and the like are huge structure bodies, they cannot be easily transported, resulting in a great cost. Therefore, it is desired that the huge structure body represented by the blade of the wind power generation device and the like be divided into small pieces before being transported.
For example, Patent Literature 1 discloses a work vehicle equipped with a long processing device.
However, conventionally, no machine has been suitable for dividing the huge structure body. Needless to say, it is also possible to cut the structure body with a hand tool, but it requires a tremendous number of man-hours. In other words, a cutting system suitable for dividing the large structure body is desired.
A structure body cutting system according to one aspect of the present disclosure includes a cutter system mounted on a first moving body moving on a ground or on a sea, and configured to cut a structure body to be cut, and a feeder system mounted on a second moving body moving on the ground or on the sea independently from the first moving body, and configured to send out the structure body to the cutter system. The structure body is placed so as to straddle between the cutter system and the feeder system. The feeder system sends out the structure body to the cutter system as the second moving body comes close to the first moving body. The cutter system cuts the structure body into a plurality of cut segments by cutting the structure body sent out from the feeder system.
According to the structure body cutting system of the one aspect of the present disclosure, since the cutter system and the feeder system are respectively mounted on the first moving body and the second moving body, it is possible to move the cutter system and the feeder system to arbitrary locations. Therefore, the structure body cutting system can be constructed at a location at which a huge structure body exists. As a result, there is no need to spend a large amount of money to transport the huge structure body for cutting. Further, since the first and second moving bodies can separate the cutter system and the feeder system by a required distance, the huge structure body can be appropriately supported by the cutter system and the feeder system. In addition, since the feeder system can send out the structure body to the cutter system as the second moving body moves, the cutter system can cut the huge structure body. As a result, it is possible to divide the huge structure body into small pieces on the spot.
According to the one aspect of the present disclosure, it is possible to provide the cutting system suitable for dividing the huge structure body.
A structure body cutting system, a structure body cutting method, and a cutter system according to the present embodiment will be described below with reference to the drawings.
A structure body cutting system 1 according to the present embodiment includes a cutter system 2 mounted on a first moving body moving on a ground or on a sea, and configured to cut a structure body to be cut, and a feeder system 5 mounted on a second moving body moving on the ground or on the sea independent from the first moving body, and configured to send out the structure body to the cutter system 2. The structure body is placed so as to straddle between the cutter system 2 and the feeder system 5. The feeder system 5 sends out the structure body to the cutter system 2 as the second moving body comes close to the first moving body. The cutter system 2 cuts the structure body into a plurality of cut segments by cutting the structure body sent out from the feeder system 5.
The configuration of the structure body cutting system 1 will be described in detail below. In the following description, a blade 8 of a wind power generation device is exemplified as the structure body to be cut. The blade 8 has a longitudinal shape extending in one direction while being twisted. As shown in
The cutter system 2 includes a cutter base 30 and a cutter unit 35. The cutter system 2 is mounted on a trailer 20 (hereinafter referred to as the “cutting side trailer 20”), which is an example of the first moving body that moves on the ground. The cutting side trailer 20 is provided with a loading platform 21 on which an object to be conveyed such as a container is mounted, and a traction vehicle 22 that pulls the loading platform 21. At each of four corners of the loading platform 21, a first tightening device 23 that removably fixes the object to be conveyed is provided. The first tightening device 23 is, for example, a twist lock.
The cutter base 30 is a plate-shaped base member on which the cutter unit 35 is mounted. The cutter unit 35 is fixed to the cutter base 30 by a fastening means such as a bolt.
The cutter base 30 has the same shape and size as the loading platform 21 of the cutting side trailer 20, but is not limited to this. A first fixed portion 31 to which the first tightening device 23 is fixed is provided on a lower surface side of the cutter base 30 so as to correspond to the first tightening device 23 on a side of the loading platform 21. The first fixed portion 31 is configured with an elongated hole or the like that is suitable for the first tightening device 23 to be inserted. The cutter base 30 is removably fixed to the cutting side trailer 20 via the first tightening device 23 of the loading platform 21.
The cutter unit 35 is provided with various elements for cutting the blade 8. Specifically, the cutter unit 35 includes a first support mechanism 36, a cutter 37, a second support mechanism 38, an alignment member 39, a first width aligning mechanism 40, a second width aligning mechanism 41, and an operation panel 42.
The first support mechanism 36 is provided on a front side of the cutter 37, that is, on a loading side on which the blade 8 is loaded with respect to the cutter 37. The first support mechanism 36 supports the blade 8 that is sent out from the feeder system 5 to the cutter 37. The first support mechanism 36 supports the blade 8 such that a feeding height (a pass line) for feeding the blade 8 is a predetermined reference height Ha. For example, the first support mechanism 36 is configured with a first rotating roller 360 that rotates around a rotation axis extending in the left-right direction, and support legs 361 and 362 that rotatably support the first rotating roller 360.
The saw blade housing 370 includes a driving wheel 371, a driven wheel 372, and a band saw blade 373 tightly stretched between the driving wheel 371 and the driven wheel 372. The driving wheel 371 and the driven wheel 372 are rotatably attached to the saw blade housing 370. Power from a drive mechanism including a motor, a gear, and the like is transmitted to the driving wheel 371 and the driving wheel 371 is rotationally driven as the power is received. The band saw blade 373 travels by a rotational drive of the driving wheel 371.
The hinge mechanism 375 includes a hinge shaft 376 provided parallel to a rotation axis of the driving wheel 371. The saw blade housing 370 is fixed to the cutter base 30 via the hinge mechanism 375 and is configured to be rotatable around the hinge shaft 376. The saw blade housing 370 can be rotated between an upper limit position (see
Referring again to
For example, the second support mechanism 38 includes a pair of support bodies 380 and 381 configured to be movable up and down in the up-down direction. The pair of support bodies 380 and 381 are arranged so as to be separated by a certain distance in the front-back direction. The blade 8 cut by the cutter 37 is supported at two points by the pair of support bodies 380 and 381. Each of the support bodies 380 and 381 includes a drive mechanism such as a hydraulic cylinder, and receives power from the drive mechanism to move up and down independently in the up-down direction. As a result, each of the support bodies 380 and 381 can support the blade 8 at the same height as the reference height Ha at which the first support mechanism 36 supports the blade 8, or at a height different from the reference height Hb.
The alignment member 39 aligns a position of the blade 8 with respect to the cutter 37 as an end surface 8a of the blade 8 extending along the front-back direction is brought into contact with the alignment member 39. For example, the alignment member 39 is configured with a second rotating roller 390 that rotates around a rotating axis extending in the up-down direction, and a pedestal portion (not shown) that rotatably supports the second rotating roller 390. In the example shown in
The first width aligning mechanism 40 is provided at a position opposed to the alignment member 39 in the left-right direction. The first width aligning mechanism 40 includes a first movable member 400 configured to be movable in the left-right direction, and a drive mechanism (not shown) such as a hydraulic cylinder that moves the first movable member 400 in the left-right direction. The first width aligning mechanism 40 fixes the blade 8 between itself and the alignment member 39 by moving the first movable member 400 in the right direction. The first width aligning mechanism 40 releases the fixation of the blade 8 by moving the first movable member 400 in the left direction. The first movable member 400 can move in the left direction up to a predetermined fully open position.
The second width aligning mechanism 41 is mounted on the support body 380 on a front side in the second support mechanism 38. The second width aligning mechanism 41 includes a pair of second movable members 410 and 411 that are provided at positions opposed to each other in the left-right direction, and a drive mechanism (not shown) such as a hydraulic cylinder. The pair of second movable members 410 and 411 are configured to be movable in the left-right direction, and each of the pair of second movable members 410 and 411 moves along the left-right direction by receiving power from the drive mechanism. The second width aligning mechanism 41 fixes the blade 8 between the pair of second movable members 410 and 411 by moving the pair of second movable members 410 and 411 along the left-right direction so as to be close with each other. Further, the second width aligning mechanism 41 releases the fixation of the blade 8 by moving the pair of second movable members 410 and 411 along the left-right direction so as to be away from each other. Each of the pair of second movable members 410 and 411 can move in the left-right direction up to a predetermined fully open position.
The operation panel 42 is a device for controlling the operations of the cutter 37, the second support mechanism 38, the first width aligning mechanism 40, and the second width aligning mechanism 41. The operation panel 42 is operated by an operator who uses the structure body cutting system 1, for example.
The feeder system 5 includes a feeder base 60 and a feeder unit 65. The feeder system 5 is mounted on a trailer 50 (hereinafter referred to as the “feeding side trailer 50”), which is an example of the second moving body that moves on the ground. The feeding side trailer 50 includes a loading platform 51 on which the object to be conveyed such as the container is mounted, and a traction vehicle 52 that pulls the loading platform 51. At each of four corners of the loading platform 51, a second tightening device 53 that removably fixes the object to be conveyed is provided. The second tightening device 53 is, for example, the twist lock.
The feeder base 60 is a plate-shaped base member on which the feeder unit 65 is mounted. The feeder unit 65 is fixed to the cutter base 30 by the fastening means such as the bolt.
The feeder base 60 has the same shape and size as the loading platform 51 of the feeding side trailer 50, but is not limited to this. A second fixed portion 61 to which the second tightening device 53 is fixed is provided on a lower surface side of the feeder base 60 so as to correspond to the second tightening device 53 on a side of the loading platform 51. The second fixed portion 61 is configured with the elongated hole or the like that is suitable for the second tightening device 53 to be inserted. The feeder base 60 is removably fixed to the feeding side trailer 50 via the second tightening device 53 of the loading platform 51.
The feeder unit 65 is provided with various elements for sending out the blade 8 to the cutter system 2. Specifically, the feeder unit 65 includes a third support mechanism 66, an abutment unit 67, a third width aligning mechanism 68, and an operation panel 69.
The third support mechanism 66 supports the blade 8 that is sent out to the cutter system 2. The third support mechanism 66 supports the blade 8 such that the feeding height (the pass line) for feeding the blade 8 is the predetermined reference height Ha.
The abutment unit 67 is a vertical wall-shaped member that stands up in the vertical direction. As the cutter system 2 moves backward, a blade edge 8b of the blade 8 in the front-back direction abuts against the abutment unit 67, which makes it possible to push the blade 8 toward a side of the cutter system 2.
The third width aligning mechanism 68 is provided between the abutment unit 67 and the third support mechanism 66. The third width aligning mechanism 68 includes a pair of third movable members 680 and 681 that are provided at positions opposed to each other in the left-right direction, and a drive mechanism (not shown) such as a hydraulic cylinder. The pair of third movable members 680 and 681 are configured to be movable in the left-right direction, and each of the pair of third movable members 680 and 681 moves along the left-right direction by receiving power from the drive mechanism. The third width aligning mechanism 68 fixes the blade 8 between the pair of third movable members 680 and 681 by moving the pair of third movable members 680 and 681 along the left-right direction so as to be close with each other. Further, the third width aligning mechanism 68 releases the fixation of the blade 8 by moving the pair of third movable members 680 and 681 along the left-right direction so as to be away from each other. Each of the pair of third movable members 680 and 681 can move in the left-right direction up to a predetermined fully open position.
The operation panel 69 is a device for operating the operation of the third width aligning mechanism 68. The operation panel 42 is operated by the operator who uses the structure body cutting system 1, for example.
First, as shown in
After the two trailers 20 and 50 are positioned, the operator operates the operation panels 42 and 69 to move the first movable member 400 of the first width aligning mechanism 40, the pair of second movable members 410 and 411 of the second width aligning mechanism 41, and the pair of third movable members 680 and 681 of the third width aligning mechanism 68 to the fully open positions. The operator operates the operation panel 42 to lower the pair of support bodies 380 and 381 of the second support mechanism 38 to the lowest position.
Next, as shown in
The blade 8 to be cut is brought in from above by using an external crane or the like, and placed so as to straddle between the cutter system 2 and the feeder system 5. The blade 8 is supported by each of the first support mechanism 36 of the cutter system 2 and the third support mechanism 66 of the feeder system 5.
At this time, the blade 8 is placed in a state in which the longitudinal direction of the blade 8 coincides with the front-back direction. The blade edge 8b of the blade 8 on the side of the feeder system 5 is in a state of being abutted against the abutment unit 67. Further, the end surface 8a of the blade 8 along the front-back direction is in a state of being in contact with the alignment member 39.
When the blade 8 is placed, the operator operates the operation panel 69 to perform a width aligning operation by the third width aligning mechanism 68. In the width aligning operation, the pair of third movable members 680 and 681 move along the left-right direction so as to be close with each other. The blade 8 is fixed between the pair of third movable members 680 and 681.
Next, as shown in
When the feeder system 5 sends out the blades 8, the feeding side trailer 50 is moved backward while the backward direction of the feeding side trailer 50 is being adjusted so as to maintain the state in which the end surface 8a of the blade 8 is in contact with the alignment member 39. By maintaining the state in which the end surface 8a of the blade 8 is in contact with the alignment member 39, the blade 8 can be sent out so as to stay within a cutting region of the cutter 37. Here, the cutting region of the cutter 37 is a region in which the band saw blade 373 cuts the blade 8, and corresponds to a region between the driving wheel 371 and the driven wheel 372 in the band saw blade 373.
As shown in
The operator operates the operation panel 42 to move up the pair of support bodies 380 and 381 of the second support mechanism 38 until they abut against the blade 8.
Further, the operator operates the operation panel 42 to rotate the saw blade housing 370 up to the lower limit position while causing the band saw blade 373 of the cutter 37 to travel, and then returns the saw blade housing 370 to the upper limit position. As a result, as shown in
As shown in
In this manner, the structure body cutting system 1 of the present embodiment includes the cutter system 2 mounted on the cutting side trailer 20, and the feeder system 5 mounted on the feeding side trailer 50. The blade 8 is placed so as to straddle between the cutter system 2 and the feeder system 5. The feeder system 5 sends out the blade 8 to the cutter system 2 as the feeding side trailer 50 comes close to the cutting side trailer 20. The cutter system 2 cuts the blade 8 into the plurality of the cut segments by cutting the blade 8 sent out from the feeder system 5.
According to this configuration, since the cutter system 2 and the feeder system 5 are respectively mounted on the cutting side trailer 20 and the feeding side trailer 50, it is possible to move the cutter system 2 and the feeder system 5 to arbitrary locations. Since the structure body cutting system 1 can be constructed at a location at which the blade 8, which is a huge structure body, is present, there is no need to spend a huge amount of money to transport the huge blade 8. Further, since the cutter system 2 and the feeder system 5 can be separated by the cutting side trailer 20 and the feeding side trailer 50 by a required distance, it is possible to support both sides of the blade 8 in accordance with a length of the huge blade 8. In addition, since the feeder system 5 can send out the blade 8 to the cutter system 2 as the feeding side trailer 50 moves, the cutter system 2 can cut the huge structure body. As a result, it is possible to cut the huge blade 8 into small pieces on the spot.
In this manner, according to the structure body cutting system 1 according to the present embodiment, a system suitable for cutting the huge blade 8 can be provided.
In the present embodiment, the cutter system 2 includes a first support mechanism 36 that supports the blade 8 sent out along the longitudinal direction, the cutter 37 that cuts the blade 8 supported by the first support mechanism 36, the second support mechanism 38 that is provided to be movable up and down in the up-down direction at the position opposed to the first support mechanism 36 with the cutter 37 interposed therebetween, and is configured to support the cut segment (a part cut out from the blade 8) that is cut by the cutter 37, and the alignment member 39 that aligns the position of the blade 8 with respect to the cutter 37 as the end surface 8a of the blade 8 is brought into contact with the alignment member 39.
According to this configuration, the first support mechanism 36 and the second support mechanism 38 are arranged with the cutter 37 interposed therebetween. Therefore, the first support mechanism 36 can support the blade 8 on the loading side with respect to the cutter 37 and the second support mechanism 38 can support the blade 8 on the unloading side with respect to the cutter 37. As a result, the blade 8 can be appropriately cut by the cutter 37.
Further, in an installation-type cutter such as a typical horizontal band saw, the pass line (the reference height Ha), which is the feeding height at which a workpiece is fed, has a constant height from the loading side to the unloading side. However, in the feeder system 5 according to the present embodiment, since the cutter system 2 and the feeder system 5 are independent and arranged at the arbitrary locations, the cutter system 2 and the feeder system 5 are not always arranged in a same height environment due to an inclination of the land or an undulation of the land. Further, since the blade 8, which is the object to be cut, has a twisted shape along the longitudinal direction, the blade 8 is also not in a shape along the pass line.
Further, the cutter system 2 according to the present embodiment includes the alignment member 39 that aligns the position of the blade 8 with respect to the cutter 37. As a result, by moving back the feeding side trailer 50 so that the state in which the end surface 8a of the blade 8 is in contact with the alignment member 39 is maintained, it is possible to hold the blade 8 sent out to the cutter 37 in the cutting region of the cutter 37. As a result, it possible to easily perform the positioning of the blade 8 with respect to the cutter 37.
In the embodiment described above, the feeding side trailer 50 is moved back so that the state in which the end surface 8a of the blade 8 is in contact with the alignment member 39 is maintained in order for the blade 8 sent out to the cutter 37 to stay within the cutting region of the cutter 37. However, the positioning of the blade 8 with respect to the cutter 37 is not limited to this method.
Further, in the present embodiment, the cutter system 2 further includes the first width aligning mechanism 40 and the second width aligning mechanism 41. Here, the first width aligning mechanism 40 fixes the blade 8 between the alignment member 39 and the first movable member 400 as the first movable member 400, which is provided at the position opposed to the alignment member 39 in the lateral direction that intersects with the feeding direction, moves along the lateral direction. The second width aligning mechanism 41 fixes the blade 8 between the pair of second movable members 410 and 411 as the pair of second movable members 410 and 411, which are provided at the positions opposed to each other in the lateral direction, move along the lateral direction so as to be close with each other.
The blade 8 has the twisted shape, and simply supporting a lower side of the blade 8 may not stabilize the blade 8 when being cut by the cutter 37. In this regard, according to the cutter system 2, the blade 8 can be fixed from the left-right direction so that the cutting by the cutter 37 can be stably performed.
In the cutter system 2 according to the present embodiment, the cutter base 30, which is a base member on which the elements constituting the cutter system 2 are mounted, is configured to be mountable to and removable from the cutting side trailer 20. Then, the cutter base 30 includes the first fixed portion 31 to which the first tightening device 23 installed on the loading platform 21 is fixed.
According to this configuration, it is possible to handle the cutter system 2 separately from the cutting side trailer 20. Further, since it is possible to easily mount the cutter system 2 on a general-purpose trailer provided with the first tightening device 23, the cutter system 2 can be easily realized. It should be noted that such an effect is obtained not only in the cutter system 2 but also in the feeder system 5.
In the cutter system 2 according to the present embodiment, the cutter 37 is a band saw machine in which the saw blade housing 370 including the band saw blade 373 is configured to be rotatable in the up-down direction around the hinge shaft 376 provided parallel to the rotation axis of the driving wheel 371.
According to this configuration, interference between the blade 8 and the saw blade housing 370 can be suppressed by rotating the saw blade housing 370 to the upper limit position when the blade 8 is placed by the crane. As a result, the blade 8 can be easily placed only by up-down movement of the crane.
The feeder system 5 according to the present embodiment includes the third support mechanism 66 configured to support the blade 8, the abutment unit 67 against which the blade edge 8b of the blade 8 in the feeding direction abuts, and the third width aligning mechanism 68 configured to fix the blade 8 between the pair of third movable members 680 and 681 as the pair of third movable members 680 and 681 provided at the positions opposed to each other move in the lateral direction so as to be close with each other in the lateral direction.
According to this configuration, the blade 8 placed so as to straddle between the cutter system 2 and the feeder system 5 can be appropriately sent out to the cutter system 2. As a result, the cutter system 2 can cut the blade 8 into the plurality of the cut segments.
Further, the structure body cutting method described in the present embodiment has an idea common to the cutting operation of the blade 8 by the structure body cutting system 1 described above, and has the same effect as the structure body cutting system 1.
It should be noted in the embodiment described above, the cutter 37 configured with the band saw machine is exemplified. However, in addition to the band sawing machine, the cutter 37 may also be a saw cutter such as a hacksaw machine that performs cutting with a hacksaw blade. Furthermore, the cutter 37 may be a laser cutter that performs laser cutting. For example, in the hacksaw machine, a saw blade housing including a linear hacksaw blade that reciprocates along the longitudinal direction is configured to be rotational in the up-down direction around a hinge shaft provided parallel to the direction orthogonal to the longitudinal direction of the hacksaw blade.
Further, in the embodiment described above, the cutter system 2 and the feeder system 5 are mounted on the trailers, but they may be mounted on vehicles that move on the ground other than the trailers. Further, the cutter system 2 and the feeder system 5 may be mounted on ships moving on the sea. The cutter system 2 and the feeder system 5 may be ships.
Further, in the embodiment described above, the blade 8 is shown as the structure body to be cut by the structure body cutting system 1. However, in addition to the blades 8, the structure body may also be a support column that supports a rotary wing consisting of a plurality of the blades in the wind power generation device, or a huge structure body other than that.
Although the present embodiment has been described in a manner described above, it should not be understood that the statements and drawings forming part of the present embodiment limit the present invention. From this disclosure, various alternative embodiments, examples, and operational techniques will become apparent to those skilled in the art.
The disclosure of the present application relates to the subject matter described in Japanese Patent Application No. 2021-098846 filed on Jun. 14, 2021, and the entire disclosure content thereof is incorporated herein by reference.
| Number | Date | Country | Kind |
|---|---|---|---|
| 2021-098846 | Jun 2021 | JP | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/JP2022/021508 | 5/26/2022 | WO |
