Retired fan blade cutting device

Abstract

The invention discloses a retired fan blade cutting device which comprises a workbench, a water jet cutter assembly, a clamping assembly and a blade supply assembly, the workbench is used for bearing a to-be-cut part of a blade, and the water jet cutter assembly is installed on the workbench and used for cutting the blade. The clamping assembly is arranged on the upstream portion of the workbench and used for clamping and limiting blades, the blade supply assembly comprises a lifting platform and a winch, the lifting platform is movably arranged on the upstream portion of the clamping assembly in the first direction and used for bearing the roots of the blades, the winch is installed on the workbench, and a stranded wire on the winch is connected with the lifting platform. The retired fan blade cutting device provided by the invention has the advantages of high blade transfer efficiency and high cutting efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of retired wind turbine blade processing, and particularly to a cutting device for retired wind turbine blades. Background Art

[0002] Since wind power projects are mostly located in remote areas with long transportation distances, and retired wind turbine blades are large in size and high in recycling cost, the current economic benefits of processing wind turbine blades are poor. Before physically recycling waste wind turbines, the wind turbine blades should be removed and cut into plates, blocks, strips, etc. of different sizes according to actual uses. The main materials of wind turbine blades are generally composites of glass fiber and epoxy resin, with high strength and good mechanical properties, and can maintain good structural quality even after retirement.

[0003] In related technologies, mechanical cutting or water cutting methods are usually used for cutting wind turbine blade composites. When using the water cutting method, due to the large weight of the water knife assembly, generally the water knife assembly is fixed and the blade moves following it. Since the blade is large in volume and irregular in shape, the blade is generally gradually transferred to the water knife assembly by a lifting device. At this time, the blade has a displacement in the height direction during the transfer process, seriously affecting the transfer efficiency of the blade and the subsequent cutting efficiency. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems in the related technologies to some extent.

[0005] To this end, an embodiment of the present invention provides a cutting device for retired wind turbine blades, which has the advantages of high transfer efficiency of the blade and high cutting efficiency.

[0006] The cutting device for retired wind turbine blades according to an embodiment of the present invention includes a workbench, a water knife assembly, a clamping assembly, and a blade supply assembly. The workbench is used to support the part of the blade to be cut; the water knife assembly is installed on the workbench and is used to cut the blade; the clamping assembly is arranged upstream of the workbench and is used to clamp and limit the blade; the blade supply assembly includes a lifting platform and a winch. The lifting platform is movably arranged upstream of the clamping assembly along a first direction and is used to support the root of the blade. The winch is installed on the workbench, and the wire on the winch is connected to the lifting platform.

[0007] According to the cutting device for retired wind turbine blades of the embodiment of the present invention, by setting the lifting platform to be movable along the first direction, and the lifting platform and the workbench jointly support the blade. When the blade needs to be moved, the winch on the workbench pulls the lifting platform towards the direction close to the workbench through the wire, and the lifting platform pushes the blade to move synchronously. Among them, the blade can realize the feeding operation along the first direction without displacement in the height direction, and the moving efficiency of the blade is high and the cutting efficiency is high.

[0008] In some embodiments, the workbench includes a first table portion, a second table portion, and a third table portion arranged in sequence along the first direction. The clamping assembly is installed on the first table portion, the water jet assembly is installed on the second table portion, the second table portion is used to support the part of the blade to be cut, and the winch is installed on the third table portion.

[0009] In some embodiments, the blade supply assembly further includes a first roller set and a second roller set. The first roller set is installed on the first table portion, the second roller set is installed on the third table portion, and the stranded wire passes through the first roller set and the second roller set.

[0010] In some embodiments, a first guide hole is provided on the side of the first table portion facing the second table portion. The first guide hole extends along the first direction. The first roller set is arranged at one end of the first guide hole away from the second table portion. A second guide hole is provided in the second table portion. The second guide hole extends along the first direction and penetrates the second table portion. The second guide hole is communicated with the first guide hole. A third guide hole is provided on the side of the third table portion facing the second table portion. The third guide hole extends along the first direction. The third guide hole is communicated with the second guide hole. The second roller set is arranged at one end of the third guide hole away from the second table portion;

[0011] The stranded wire between the first roller set and the second roller set is located in the first guide hole, the second guide hole, and the third guide hole.

[0012] In some embodiments, there are two first roller sets. One of the first roller sets is installed above the first table portion, and the other first roller set is installed in the first guide hole;

[0013] There are two second roller sets. One of the second roller sets is installed above the third table portion, and the other second roller set is installed in the third guide hole.

[0014] In some embodiments, the first roller set and the second roller set have the same structure. The first roller set includes a bracket, a first guide roller, and a second guide roller. The bracket is connected to the first table portion; there are two first guide rollers and they are installed on the bracket. The axial directions of the two first guide rollers are consistent with the up and down direction; there are two second guide rollers and they are installed on the bracket. The axial directions of the two second guide rollers are orthogonal to the first direction and the up and down direction. The two second guide rollers are located on the same side of the two first guide rollers along the first direction. The stranded wire passes through the gap between the two first guide rollers and the gap between the two second guide rollers.

[0015] In some embodiments, walking wheels are installed at the bottom of the lifting platform;

[0016] There are two winches, and the two winches are arranged at intervals in the second direction, and the second direction is orthogonal to the first direction and the up-down direction.

[0017] In some embodiments, a plurality of first conveying rollers arranged at intervals in the first direction are provided on the second table portion, and there are two groups of water knife assemblies located on opposite sides of the first conveying rollers in the second direction, and the second direction is orthogonal to the first direction and the up-down direction.

[0018] In some embodiments, a plurality of second conveying rollers for supporting the blades are installed on the first table portion, and the plurality of second conveying rollers are configured into multiple groups arranged at intervals in the first direction. Each group of the second conveying rollers includes two second conveying rollers arranged in a V shape in the second direction, and the second direction is orthogonal to the first direction and the up-down direction.

[0019] In some embodiments, the retired wind turbine blade cutting device further includes a waste water recovery assembly, and the waste water recovery assembly is communicated with the workbench and is used for collecting the waste water formed when the water knife assembly works. Description of the Drawings

[0020] Figure 1 is a schematic diagram of a retired wind turbine blade cutting device according to an embodiment of the present invention.

[0021] Figure 2 is a top view of a retired wind turbine blade cutting device according to an embodiment of the present invention.

[0022] Figure 3 is another schematic diagram of a retired wind turbine blade cutting device according to an embodiment of the present invention, wherein the lifting platform is hidden.

[0023] Figure 4 is a schematic diagram of the workbench in a retired wind turbine blade cutting device according to an embodiment of the present invention.

[0024] Figure 5 is Figure 4 an enlarged view of part A in

[0025] Reference Signs:

[0026] 1, workbench; 11, first table portion; 111, first guide hole; 12, second table portion; 121, second guide hole; 13, third table portion; 131, third guide hole; 2, water knife assembly; 3, clamping assembly; 4, blade supply assembly; 41, winch; 42, first roller group; 421, bracket; 422, first guide roller; 423, second guide roller; 43, second roller group; 44, lifting platform; 5, second conveying roller; 6, blade. Detailed Description of the Embodiments

[0027] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation of the present invention.

[0028] The following will be combined with Figures 1 - 5 Describe a cutting device for retired wind turbine blades according to an embodiment of the present invention.

[0029] The cutting device for retired wind turbine blades according to the embodiment of the present invention includes a workbench 1, a water jet assembly 2, a clamping assembly 3, and a blade supply assembly 4. The workbench 1 is used to support the part of the blade 6 to be cut. The water jet assembly 2 is installed on the workbench 1 and is used to cut the blade 6. The clamping assembly 3 is arranged upstream of the workbench 1 and is used to clamp and limit the blade 6. The blade supply assembly 4 includes a lifting platform 44 and a winch 41. The lifting platform 44 is movably arranged upstream of the clamping assembly 3 along a first direction and is used to support the root of the blade 6. The winch 41 is installed on the workbench 1, and the wire on the winch 41 is connected to the lifting platform 44.

[0030] According to the cutting device for retired wind turbine blades of the embodiment of the present invention, by setting the lifting platform 44 to be movable along the first direction, and the lifting platform 44 and the workbench 1 together realize the support of the blade 6. When the blade 6 needs to be moved, the winch 41 on the workbench 1 pulls the lifting platform 44 in the direction close to the workbench 1 through the wire, and the lifting platform 44 pushes the blade 6 to move synchronously. Among them, the blade 6 can realize the feeding operation along the first direction without displacement in the height direction, and the moving efficiency of the blade 6 is high and the cutting efficiency is high.

[0031] It should be noted that the water jet assembly 2 includes an ultra-high pressure water pump, a cutting robotic arm, a water tank, and an abrasive supply device. The cutting robotic arm is equipped with a cutting head, and the cutting head is connected to the ultra-high pressure pump through a high-pressure pipe. The water tank and the abrasive supply device are used to ensure the continuous supply of water and abrasive. The skid-mounted cutting equipment for retired wind turbine blades 6 further includes a power system, which can be a diesel generator set to supply power to electrical components such as the water jet assembly 2 and the winch 41, ensuring the independent and reliable operation of the skid-mounted cutting equipment for retired wind turbine blades 6 in the wild.

[0032] In some embodiments, the workbench 1 includes a first table part 11, a second table part 12, and a third table part 13 arranged in sequence along the first direction. The clamping assembly 3 is installed on the first table part 11, the water jet assembly 2 is installed on the second table part 12, the second table part 12 is used to support the part of the blade 6 to be cut, and the winch 41 is installed on the third table part 13.

[0033] At this time, the lifting platform 44 is located on the side of the first platform part 11 away from the second platform part 12. By arranging the winch 41 on the third platform part 13, more parts of the blade 6 can be pulled to the water jet assembly 2 for cutting treatment, and the cutting efficiency of the blade 6 is higher.

[0034] Exemplarily, as Figures 1 - 3 shown, both the first platform part 11 and the third platform part 13 are pivotally connected to the second platform part 12. That is, after the retired wind turbine blade cutting device completes the cutting operation, the first platform part 11 and the third platform part 13 can be folded so that the clamping assembly 3, the winch 41 and the water jet assembly 2 thereon are all hidden in the accommodation cavity formed by the workbench 1, making the size of the retired wind turbine blade cutting device smaller and more convenient to move.

[0035] It should be noted that when the winch 41 pulls the lifting platform 44 to move so that the lifting platform 44 abuts against the first platform part 11, the wire can also dissociate from the lifting platform 44 and be connected to the root of the blade 6, so as to facilitate pulling the root of the blade 6 to the water cutting assembly, and the cutting of the blade 6 is more thorough.

[0036] In some embodiments, the blade supply assembly 4 further includes a first roller set 42 and a second roller set 43. The first roller set 42 is installed on the first platform part 11, the second roller set 43 is installed on the third platform part 13, and the wire passes through the first roller set 42 and the second roller set 43.

[0037] Under the guidance of the first roller set 42 and the second roller set 43, it is effectively avoided that the wire interferes with the first platform part 11, the second platform part 12, the third platform part 13, the water jet assembly 2 and the clamping assembly 3, and the pulling reliability of the winch 41 for the lifting platform 44 is higher. At the same time, the wire is in rolling fit with the first roller set 42 and the second roller set 43, the friction between the wire and the first roller set 42 and the second roller set 43 is smaller, and the service life of the wire is longer.

[0038] Specifically, as Figures 1 - 4 shown, the first roller set 42 is installed on the side of the clamping assembly 3 away from the water jet assembly 2, and the second roller set 43 is installed on the side of the winch 41 facing the water jet assembly 2.

[0039] In some embodiments, as Figure 4As shown, the first platform 11 is provided with a first guide hole 111 on the side facing the second platform 12, the first guide hole 111 extends in the first direction, the first roller group 42 is arranged at one end of the first guide hole 111 away from the second platform 12, the second guide hole 121 is arranged in the second platform 12, the second guide hole 121 extends in the first direction and passes through the second platform 12, the second guide hole 121 is connected with the first guide hole 111, the third platform 13 is provided with a third guide hole 131 on the side facing the second platform 12, the third guide hole 131 extends in the first direction, the third guide hole 131 is connected with the second guide hole 121, and the second roller group 43 is arranged at one end of the third guide hole 131 away from the second platform 12. The stranded wire located between the first roller group 42 and the second roller group 43 is located in the first guide hole 111, the second guide hole 121 and the third guide hole 131.

[0040] By hiding part of the stranded wire in the first guide hole 111, the second guide hole 121 and the third guide hole 131, on the one hand, interference between the stranded wire and the clamping assembly 3 and the water jet assembly 2 is further avoided. On the other hand, more layout space is reserved above the first platform 11, the second platform 12 and the third platform 13. The layout of the water jet assembly 2 and the clamping assembly 3 is highly flexible. On the other hand, it is also effectively prevented that fragments formed by the cutting of the blade 6 interfere with the stranded wire and affect the movement and service life of the stranded wire.

[0041] For example, Figure 4 As shown, a square tube extending in the first direction is welded above the second platform 12, and the square tube forms a rectangular second guide hole 121 extending in the first direction. The first guide hole 111 is arranged in the first platform 11, and the upper surface of the first platform 11 is provided with a plurality of through holes connected to the first guide hole 111, and the plurality of through holes are arranged at intervals along the first direction. The arrangement of the plurality of through holes facilitates the cleaning of the first guide hole 111, and avoids excessive accumulation of impurities in the first guide hole 111 and affecting the service life of the stranded wire. The third guide hole 131 is arranged at the upper surface of the third platform 13.

[0042] In some embodiments, there are two first roller groups 42, one of which is installed above the first platform 11, and the other first roller group 42 is installed in the first guide hole 111. There are two second roller groups 43, one of which is installed above the third platform 13, and the other second roller group 43 is installed in the third guide hole 131.

[0043] By respectively arranging a first roller set 42 and a second roller set 43 in the first guide hole 111 and the third guide hole 131, it is ensured that the stranded wire located between the above-mentioned first roller set 42 and the second roller set 43 does not contact the inner surfaces of the first guide hole 111 to the third guide hole 131. Also, by respectively arranging a first roller set 42 and a second roller set 43 above the first table portion 11 and the third table portion 13, on the one hand, it is ensured that the stranded wire located between the two first roller sets 42 and the stranded wire located between the two second roller sets 43 do not contact the first table portion 11 and the third table portion 13, and on the other hand, it is also ensured that the stranded wire connected to the lifting platform 44 has a higher height, and this part of the stranded wire is less likely to contact objects such as gravel on the ground, and the service life of the stranded wire is higher.

[0044] Specifically, a first avoidance groove is formed at one end of the first guide hole 111 away from the second guide hole 121, and a second avoidance groove is formed at one end of the third guide hole 131 away from the second guide hole 121. One of the first roller sets 42 is installed in the first avoidance groove, and one of the second roller sets 43 is installed in the second avoidance groove.

[0045] In some embodiments, as Figure 5 shown, the structures of the first roller set 42 and the second roller set 43 are the same. The first roller set 42 includes a bracket 421, a first guide roller 422, and a second guide roller 423. The bracket 421 is connected to the first table portion 11. There are two first guide rollers 422 and they are installed on the bracket 421. The axial directions of the two first guide rollers 422 are consistent with the up and down direction. There are two second guide rollers 423 and they are installed on the bracket 421. The axial directions of the two second guide rollers 423 are orthogonal to the first direction and the up and down direction. The two second guide rollers 423 are located on the same side of the two first guide rollers 422 along the first direction. The stranded wire passes through the gap between the two first guide rollers 422 and the gap between the two second guide rollers 423.

[0046] That is, the first roller set 42 and the second roller set 43 simultaneously limit the stranded wire in the second direction and the up and down direction. When the stranded wire pulls the lifting platform 44, it is less likely to deviate left and right, and the movement consistency of the lifting platform 44 along the first direction is higher.

[0047] Exemplarily, the bracket 421 of the first roller set 42 is connected to the first table portion 11 through four threaded parts. The assembly holes on the bracket 421 for the threaded parts to pass through are waist-shaped holes extending in the second direction. The bracket 421 of the second roller set 43 is connected to the third table portion 13 through four threaded parts. The assembly holes on the bracket 421 for the threaded parts to pass through are waist-shaped holes extending in the second direction.

[0048] In some embodiments, walking wheels are installed at the bottom of the lifting platform 44. There are two winches 41, and the two winches 41 are arranged at intervals along the second direction. The second direction is orthogonal to the first direction and the up and down direction.

[0049] The walking wheels are arranged such that it is more labor-saving to pull the lifting platform 44 by the winch 41, and the arrangement of two winches 41 jointly pulling the lifting platform 44 makes the movement of the lifting platform 44 more consistent in the first direction.

[0050] Exemplarily, the distances between the two winches 41 and the center line extending in the first direction of the third platform portion 13 are equal, and there are two sets of corresponding first guide holes 111 to third guide holes 131 arranged at intervals in the second direction. There are two sets of corresponding first roller groups 42 and second roller groups 43. The lifting platform 44 forms a limiting groove, and the root of the blade 6 is arranged in the limiting groove to reduce the probability of the root of the blade 6 accidentally detaching from the lifting platform 44.

[0051] It should be noted that the retired wind turbine blade cutting device may further include a guide rail extending in the first direction, and the lifting platform 44 is slidably connected to the guide rail.

[0052] In some embodiments, a plurality of first conveying rollers arranged at intervals in the first direction are provided on the second platform portion 12, there are two sets of water jet assemblies 2 located on opposite sides of the first conveying rollers in the second direction, and the second direction is orthogonal to the first direction and the up-down direction.

[0053] When the blade 6 moves under the pulling of the winch 41, it will rollingly cooperate with the first conveying rollers. While the second platform portion 12 supports the blade 6 through the first conveying rollers, the movement of the blade 6 is more labor-saving and smooth. In addition, the axial direction of the first conveying rollers is consistent with the second direction, so as to ensure that while the first conveying rollers support the blade 6, they do not interfere with the cutting of the bottom of the blade 6 located above the second platform portion 12 by the water jet assembly 2, and the cutting effect of the water jet assembly 2 on the blade 6 is better.

[0054] Exemplarily, the plurality of first conveying rollers are arranged at equal intervals in the first direction, and the two sets of water jet assemblies 2 are mirror-symmetrically arranged on opposite sides of the first conveying rollers in the second direction.

[0055] In some embodiments, a plurality of second conveying rollers 5 for supporting the blade 6 are installed on the first platform portion 11, and the plurality of second conveying rollers 5 are configured as multiple groups arranged at intervals in the first direction. Each group of second conveying rollers 5 includes two second conveying rollers 5 arranged in a V shape along the second direction, and the second direction is orthogonal to the first direction and the up-down direction.

[0056] The two second conveying rollers 5 arranged along the second direction surround a V-shaped supporting space with an upward opening, so as to support the blade 6 and effectively limit the blade 6 in the second direction.

[0057] As Figure 3 shown, there are four groups of second conveying rollers 5 arranged at intervals in the first direction, and the two second conveying rollers 5 in each group of second conveying rollers 5 are mirror-symmetrically arranged.

[0058] In some embodiments, the retired wind turbine blade cutting device further includes a waste water recovery component, which is connected to the workbench 1 and is used to collect the waste water formed when the water jet component 2 works.

[0059] The waste water recovery component can collect the waste water, on the one hand, avoiding the pollution of the local environment by the waste water, and on the other hand, realizing the reuse of the water resources and abrasives in the waste water.

[0060] Exemplarily, a liquid storage tank is provided on the second stage 12, and the waste water recovery component is connected to the liquid storage tank. The liquid storage tank can store the waste water generated when the water jet component 2 works, so as to facilitate the recovery of the waste water and abrasives by the waste water recovery component.

[0061] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

[0062] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0063] In the present invention, unless otherwise clearly specified and limited, the terms "mounted", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0064] In the present invention, unless otherwise clearly specified or limited, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Also, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the horizontal height of the first feature is less than that of the second feature.

[0065] In the present invention, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0066] Although the above embodiments have been shown and described, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions, and variations made by those of ordinary skill in the art to the above embodiments are within the protection scope of the present invention.

Claims

1. A cutting device for retired wind turbine blades, characterized in that, include: A workbench (1), the workbench (1) being used to support the portion of the blade (6) to be cut; A water jet assembly (2), the water jet assembly (2) being mounted on the workbench (1) and used for cutting the blade (6); A clamping assembly (3), the clamping assembly (3) being arranged upstream of the workbench (1) and used for clamping and limiting the position of the blade (6); A blade supply assembly (4), the blade supply assembly (4) comprising a lifting platform (44) and a winch (41), the lifting platform (44) being movably arranged upstream of the clamping assembly (3) along a first direction and used to support the root of the blade (6), the winch (41) being installed on the workbench (1), and the twisted wire on the winch (41) being connected to the lifting platform (44).

2. The retired wind turbine blade cutting device according to claim 1, wherein, The workbench (1) comprises a first table portion (11), a second table portion (12) and a third table portion (13) arranged in sequence along the first direction, the clamping assembly (3) is mounted on the first table portion (11), the water jet assembly (2) is mounted on the second table portion (12), the second table portion (12) is used to support the portion of the blade (6) to be cut, and the capstan (41) is mounted on the third table portion (13).

3. The retired wind turbine blade cutting device according to claim 2, wherein, The blade supply assembly (4) further comprises a first roller group (42) and a second roller group (43), wherein the first roller group (42) is mounted on the first platform (11), and the second roller group (43) is mounted on the third platform (13), and the strand passes through the first roller group (42) and the second roller group (43).

4. The retired wind turbine blade cutting device according to claim 3, characterized in that, A first guide hole (111) is provided on a side surface of the first platform (11) facing the second platform (12), the first guide hole (111) extending along the first direction; the first roller group (42) is arranged at an end of the first guide hole (111) away from the second platform (12); a second guide hole (121) is provided in the second platform (12), the second guide hole (121) extends along the first direction and passes through the second platform (12), the second guide hole (121) is communicated with the first guide hole (111); a third guide hole (131) is provided on a side surface of the third platform (13) facing the second platform (12), the third guide hole (131) extends along the first direction, the third guide hole (131) is communicated with the second guide hole (121); the second roller group (43) is arranged at an end of the third guide hole (131) away from the second platform (12); The strands located between the first roller set (42) and the second roller set (43) are located in the first guide hole (111), the second guide hole (121) and the third guide hole (131).

5. The retired wind turbine blade cutting device according to claim 4, characterized in that, There are two first roller groups (42), one of which is installed above the first platform (11), and the other is installed in the first guide hole (111); There are two of the second roller groups (43), one of the second roller groups (43) is installed above the third table part (13), and the other second roller group (43) is installed in the third guide hole (131).

6. The retired fan blade cutting device according to claim 4, wherein, The first roller group (42) and the second roller group (43) have the same structure. The first roller group (42) includes: A bracket (421) connected to the first table part (11); Two first guide rollers (422) installed on the bracket (421), and the axial directions of the two first guide rollers (422) are consistent with the up and down direction; Two second guide rollers (423) installed on the bracket (421), the axial directions of the two second guide rollers (423) are orthogonal to the first direction and the up and down direction, the two second guide rollers (423) are located on the same side of the two first guide rollers (422) along the first direction, and the stranded wire passes through the gap between the two first guide rollers (422) and the gap between the two second guide rollers (423).

7. The retired wind turbine blade cutting device according to any one of claims 2-6, characterized in that, The bottom of the lifting platform (44) is equipped with traveling wheels; There are two of the winches (41), and the two winches (41) are arranged at intervals along the second direction, and the second direction is orthogonal to the first direction and the up and down direction.

8. The retired wind turbine blade cutting device according to claim 2, wherein, A plurality of first conveying rollers arranged at intervals along the first direction are provided on the second table part (12), and there are two groups of water knife assemblies (2) located on opposite sides of the first conveying rollers along the second direction, and the second direction is orthogonal to the first direction and the up and down direction.

9. The cutting device for retired wind turbine blades according to claim 2, wherein A plurality of second conveying rollers (5) for supporting the blades (6) are installed on the first table part (11), and the plurality of second conveying rollers (5) are configured into multiple groups arranged at intervals along the first direction. Each group of the second conveying rollers (5) includes two second conveying rollers (5) arranged in a V shape along the second direction, and the second direction is orthogonal to the first direction and the up and down direction.

10. The retired wind turbine blade cutting device according to claim 1, wherein, The retired wind turbine blade cutting device further includes a waste water recovery assembly, which is communicated with the workbench (1) and is used for collecting the waste water formed when the water knife assembly (2) works.

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