Wind turbine blade conveying device suitable for complex road conditions

Abstract

The invention provides a wind turbine blade transportation device adapting to complex road conditions, which comprises a trailer body, a fixing device, a rotating device and a supporting device, the fixing device and the rotating device are arranged at the front end of the trailer body, and a turnover bracket at the front part of the trailer body is combined, so that the trailer head and the fixing device are cooperatively controlled through meshing of inner and outer gears; according to the structure, the posture angle of the blade can be adjusted in the installation process of the wind turbine blade; meanwhile, when complex road conditions occur in the transportation process, angle adjustment can be conducted by driving and starting a hydraulic cylinder so as to adapt to road condition changes, in addition, through a rotating inner support, a bearing outer ring and a supporting device in the rotating device, the blades can be firmly fixed to the blade root portions of the blades, and therefore the blades can be fixed more stably. According to the technical scheme, transverse or longitudinal displacement of the blades in the transportation process can be effectively prevented, all-directional supporting is provided for the blades, fixing force borne by the blades can be evenly dispersed, and damage to the blades caused by local stress concentration is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of wind turbine blade transportation, in particular to a wind turbine blade transportation device adaptable to complex road conditions. Background Art

[0002] At present, with the development trend of blades towards larger sizes, wind turbine blades are all made of high-strength / high-rigidity and lightweight glass fiber / carbon fiber reinforced composite materials. In response to the low-carbon, high-efficiency environmental and economic needs, 100-meter-class wind turbine blades have become the mainstream of the market. However, the excessive size and weight make the blade structure itself more sensitive to local stress. In addition, the road conditions during the transportation of blades are complex (mountainous areas, curves, bumpy roads), the movement space is limited, and obstacles along the way appear frequently. When the turning radius is insufficient and the road is narrow, it is very easy for the blades to collide with obstacles, which leads to a surge in the risk of damage during blade transportation.

[0003] The current transportation equipment for large composite wind turbine blades lacks size adaptability. Most existing transportation equipment is suitable for blades of 80 meters or less, and there is a lack of effective support solutions for ultra-long blades of 100 meters or more, which indirectly leads to an increased risk of stress concentration during the transportation of large blades. At the same time, the transportation equipment has poor adaptability to different scenarios, and existing equipment still focuses on standard road transportation. When faced with complex transportation scenarios such as large turning radius, high obstacle avoidance, and steep mountain slopes, its adaptability to the terrain is weak. These pain points seriously restrict the safe and efficient transportation of ultra-long blades.

[0004] In view of this, the inventor specially designed a wind turbine blade transportation device that can adapt to complex road conditions, which resulted in this case. Summary of the Invention

[0005] In order to solve the above problems, the technical solutions of the present invention are as follows: A wind turbine blade transport device adapted to complex road conditions includes a trailer body and a support device, wherein the trailer body includes a front and a body, the support device is used to support the tail position of the blade, and further includes: The trailer body, including the front and body; A fixing device is fixed to the front end of the vehicle body, and the fixing device includes two starting hydraulic cylinders, a first fixing plate, and a flip bracket. The front end of the vehicle body is meshed with the bottom of the first fixing plate via internal and external gears. One end of the two starting hydraulic cylinders is connected to the upper end of the flip bracket, and the other end of the two starting hydraulic cylinders is connected to the first fixing plate. The rotating device includes a rotating inner support, a bearing outer ring and a second fixed plate. One side of the second fixed plate is connected to the flip bracket () and the other side is connected to the bearing outer ring. The rotating inner support is used to fix the root of the blade.

[0006] Preferably, the rotating device also includes a motor, a connecting gear, a transmission gear and a reduction gear. The motor is arranged at the top of the flip bracket. The connecting gear, transmission gear and reduction gear are fixed in sequence from top to bottom on the side of the flip bracket close to the second fixed plate and mesh with each other. The output shaft of the motor is connected to the connecting gear through a pin key. A gear is provided at one end of the rotating inner support, and the reduction gear is meshed with the rotating inner support.

[0007] Preferably, a sliding block is provided at the center of the first fixed plate, a fixed block is provided at the center of the movable plate, and a shock-absorbing rocker is connected between the fixed block and the sliding block.

[0008] Preferably, a flip support platform is provided in the middle of the first fixed plate, and the flip bracket is connected to the flip support platform via a rotating shaft.

[0009] Preferably, a limiting boss is provided between the first fixing plate and the flip bracket.

[0010] Preferably, the supporting device includes a blade bracket, a lower wing plate, a leading edge of an upper wing plate and a trailing edge of an upper wing plate. The left and right sides of the upper end of the blade bracket are respectively connected to the clamping hydraulic cylinder, the leading edge of the upper wing plate and the top of the trailing edge of the upper wing plate are respectively connected to the other end of the clamping hydraulic cylinder, the lower wing plate is fixed to the bottom end of the bracket, and the leading edge of the upper wing plate and both sides of the trailing edge of the upper wing plate are hinged to the lower wing plate through a pin shaft.

[0011] Preferably, shock-absorbing and buffering films are respectively provided on the leading edge of the upper wing panel, the trailing edge of the upper wing panel and the inner surface of the lower wing panel.

[0012] Preferably, the supporting device further comprises an angle iron support, a movable plate and a bottom plate, the movable plate is elastically connected to the angle iron support via a slide rod and a return spring, and the movable plate is elastically connected to the bottom plate.

[0013] Preferably, a compression spring and a support spring are installed on the bottom and side wall of the base plate respectively, and the movable plate and the base plate are elastically connected via the compression spring and the support spring.

[0014] Preferably, the vehicle body includes a front slide rail, a rear slide rail and a slide plate, the front slide rail and the rear slide rail are slidably connected, the slide plate is slidably arranged above the front slide rail and the rear slide rail, and the support device is fixed above the slide plate.

[0015] The technical solution provided by the present invention has the following beneficial effects: 1. The present invention provides a fixing device and a rotating device at the front end of the vehicle body. Combined with the flip bracket at the front end of the vehicle body, the trailer head and the fixing device are cooperatively controlled through the meshing of internal and external gears, so that the fixing device can rotate relative to the trailer head. This structure enables the attitude angle of the blade to be adjusted during the installation of the wind turbine blade; at the same time, when encountering complex road conditions during transportation, the angle can be adjusted by driving the two starting hydraulic cylinders to adapt to changes in road conditions. In addition, through the combined design of the rotating inner support and the bearing outer ring in the rotating device and the supporting device, the blade can be firmly fixed at its blade root, which can effectively prevent the blade from lateral or longitudinal displacement during transportation, provide all-round support for the blade, and can evenly disperse the fixing force on the blade to avoid local stress concentration causing damage to the blade.

[0016] 2. The present invention forms a spring-damping shock-absorbing system by arranging a shock-absorbing buffer membrane compression spring, a support spring, and a shock-absorbing rocker arm in the support device. This system can effectively absorb the instantaneous impact energy generated by the vibration of the transport trailer under complex road conditions, significantly reducing the peak impact load borne by the transported parts (large composite blades), that is, reducing the risk of damage to the blades during transportation; at the same time, it effectively avoids the phenomenon of local fiber delamination of the blade skin or resin cracking at the bonding point, significantly improving the reliability of the clamp connection in the transportation equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0018] in: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the fixing device in the present invention; Figure 3 It is a left side view of the fixing device and the rotating device of the present invention; Figure 4 It is a schematic structural diagram of the rotating device in the present invention; Figure 5 It is a left side view of the rotating device of the present invention; Figure 6 It is a structural schematic diagram of the support device in the present invention; Figure 7 yes Figure 6 The shown area B is a partially enlarged schematic diagram; Figure 8 It is a left view of the supporting device in the present invention.

[0019] Description of labels: Trailer head and body (1); fixing device (2); first fixing plate (201); rotating shaft (201a-1); tilting support platform (201a-2); shaft ring (202a-1); upper starting hydraulic cylinder (202a-2); lower starting hydraulic cylinder (202a-3); tilting bracket (203); fixing bolt (204); motor (205a-1); gear cover (205a-2); connecting gear (205a-3); transmission gear (205a-4); reduction gear (206); fastening bolt (207); limiting boss (208); second fixing plate (209); power supply box (210) ; Rotating device (3); Rolling body (301); Rotating inner support (302); Bearing inner ring (303); Bearing outer ring (304); Support device (4); Blade bracket (401); Clamping hydraulic cylinder (402); Upper wing plate trailing edge (403); Lower wing plate (404); Upper wing plate leading edge (405); Shock-absorbing buffer membrane (406a-1); Angle iron support seat (406a-2); Sliding rod spring (406a-3); Sliding rod (406a-4); Movable plate (407); Compression spring (408); Movable plate support spring (409); Sliding block (410); Shock-absorbing rocker (411); Bottom plate (412). DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] See also Figures 1 to 8 , is a wind turbine blade transport device adapted to complex road conditions as a preferred embodiment of the present invention, comprising: The trailer body 1 includes a front and a body; The fixing device 2 is fixed to the front end of the vehicle body. The trailer head 1 and the chassis of the fixing device 2 are engaged with each other through internal and external gears. The fixing device 2 includes two starting hydraulic cylinders, a first fixed plate 201, and a flip bracket 203. The front of the vehicle is engaged with the bottom of the first fixed plate 201 via internal and external gears. The telescopic ends of the two starting hydraulic cylinders are connected to the upper end of the flip bracket 203, and the fixed ends of the two starting hydraulic cylinders are connected to the first fixed plate 201. The starting hydraulic cylinders include an upper starting hydraulic cylinder 202a-2 and a lower starting hydraulic cylinder 202a-3. The flip bracket 203 is connected to the first fixed plate 201 via a rotating shaft 201a-1. The upper starting hydraulic cylinder 202a-2 is connected to the upper triangular plate of the flip bracket 203, and the lower starting hydraulic cylinder 202a-3 is connected to the first fixed plate 201 via a fixed shaft ring 202a-1. Rotating device 3, which includes a rotating inner support 302, a bearing inner ring 303, a bearing outer ring 304, and a second fixing plate 209. The bearing inner ring 303 is connected to the rotating inner support 302 and the bearing outer ring 304, respectively. One side of the second fixing plate 209 is connected to the flip bracket 203 via a fixing bolt 204, and the other side is connected to the bearing outer ring 304 via a fastening bolt 207. The rotating inner support 302 is used to fix the blade root. The support device 4 includes a blade bracket 401, a lower wing plate 404, an upper wing plate leading edge 405 and an upper wing plate trailing edge 403. The left and right sides of the upper end of the blade bracket 401 are respectively connected to the clamping hydraulic cylinder 402, and the upper wing plate leading edge 405 and the top of the upper wing plate trailing edge 403 are respectively connected to the other end of the clamping hydraulic cylinder 402. The lower wing plate 404 is fixed to the bottom end of the bracket, and the upper wing plate leading edge 405 and the two sides of the upper wing plate trailing edge 403 are hinged with the lower wing plate 404 through a pin shaft. The preferred upper wing plate leading edge 405 and upper wing plate trailing edge 403 clamps of the support device 4 are controlled to open and close by the clamping hydraulic cylinder 402. The wing plate clamp can achieve close fit and reliable clamping of the blade without manual intervention, and can more flexibly control the clamping force to fix the blade. The blade bracket 401 is connected to the wing plate clamp, and the wing plate clamp preferably adopts a structure that fits the shape of the blade.

[0022] The trailer head and the chassis of the fixing device 2 are connected by internal and external gear meshing. The fixing device 2 can rotate relative to the trailer head, and the head can be deflected 90°-135° relative to the vehicle body to control the driving direction of the transport vehicle.

[0023] Combine Figure 2 and Figure 4 As shown, a flip support platform 201a-2 is set in the middle position of the first fixed plate 201, and the flip bracket 203 is fixed to the flip support platform 201a-2 through the rotating shaft 201a-1, and the upper starting hydraulic cylinder 202a-2 is connected to the lower end opening of the first fixed plate 201 through a pin shaft. The starting hydraulic cylinder has a maximum stroke of 1300mm, and the upper and lower end connection methods of the hydraulic cylinders on the left and right sides are consistent with the previous ones; the second fixed plate 209 is connected to the inside of the flip bracket 203 through the opening using a fixing bolt 204, and the other side is connected to the rotating device 3; the limiting boss 208 is set between the flip support platform 201a-2 and the flip bracket 203, and one is set on each side of the left and right sides for fixing the vertical position of the flip bracket 203.

[0024] Combine Figure 2-Figure 5As shown, in this embodiment, the rotating device also includes a motor 205a-1, a connecting gear 205a-3, a transmission gear 205a-4 and a reduction gear 206. The motor 205a-1 is arranged at the top of the flip bracket 203. The connecting gear 205a-3, the transmission gear 205a-4 and the reduction gear 206 are fixed in sequence from top to bottom on the side of the flip bracket 203 close to the second fixed plate 209 and are engaged with each other. The output shaft of the motor 205a-1 is connected to the connecting gear 205a-3 by a pin key. A gear is provided at one end of the rotating inner support 302, and the reduction gear 206 is engaged with the rotating inner support 302. A motor support seat is provided at the upper end of the flip bracket 203, and four bolt holes are opened on the motor support seat. The motor 205a-1 is fixed to the support seat by bolts. The rotating shaft of the motor 205a-1 is connected to the connecting gear 205a-3 by a pin key so that they are coaxial. The motor 205a-1 preferably adopts a 240V, 1.5MW DC motor. A power supply box 210 is provided on the first fixed plate 201. One end of the line is connected to the power supply box 210, and the other end is connected to the motor 205a-1 through a switch; the bearing inner ring 303 is respectively connected to the bearing outer ring 304 and the rotating inner support 302, and the bearing outer ring 304 and the second fixed plate 209 are respectively provided with bolt holes around them. The two are connected by fastening bolts 207 for adjusting the rotation angle of the blade; the rotating device 3 is cylindrical and cooperates with the middle opening of the second fixed plate 209. The structure on the rotating device 3 can be welded around it or cast.

[0025] When implementing: Figure 2 As shown, the root of the blade is fixed to the rotating inner support 302, and the hydraulic cylinders 202a-2 and 3 are started to fill with oil and extend outward, so that the flip bracket 203 is fixed vertically and the blade is placed horizontally on the transport device for normal transport of the blade; when encountering an obstacle, the starting hydraulic cylinders 202a-2 and 3 of the fixing device 2 discharge oil and are compressed, and the flip bracket 203 and the blade as a whole tilt toward the front of the vehicle. Depending on the road conditions, the tilt angle can be controlled within the range of 0°-45°; at this time, the hydraulic cylinder stops discharging oil and the blade is fixed. According to the obstacle and the direction of wind load, the switch is pressed to control the motor 205a-1 to rotate, and the power is output to the rotating inner support 302 through the reduction gear 206, the transmission gear 205a-4, and the connecting gear 205a-3. The blade follows the rotating inner support 302 and starts to rotate, so that its angle reaches the optimal position, the control switch stops rotating, and the transport vehicle starts to move and pass the obstacle.

[0026] refer to Figure 6-Figure 8 Shock-absorbing and buffering films 406a-1 are respectively provided inside the panels of the upper wing panel leading edge 405, the upper wing panel trailing edge 403 and the lower wing panel 404. The shock-absorbing and buffering films 406a-1 inside the panels can effectively absorb high-frequency vibrations during transportation and reduce the impact force on the blade surface.

[0027] refer to Figure 6-Figure 8 The supporting device 4 also includes an angle iron support 406a-2, a movable plate 407 and a bottom plate 412. The movable plate 407 is elastically connected to the angle iron support 406a-2 through a sliding rod 406a-4 and a return spring 406a-3. The movable plate 407 is elastically connected to the bottom plate 412. The bottom and side walls of the bottom plate 412 are respectively installed with a compression spring 408 and a support spring 409. The movable plate 407 and the bottom plate 412 are elastically connected through the compression spring 408 and the support spring 409; the movable plate 407 and the angle iron support 406a-2 are elastically connected through the sliding rod 406a-4 and the return spring 406a-3, and the movable plate 407 and the bottom plate 412 are also elastically connected. This multi-level elastic connection structure can buffer vibrations of different directions and sizes. When encountering larger bumps, the return spring 412 and the elastic connection between the movable plate 407 and the base plate 412 can absorb the impact force and prevent the blades from being damaged by direct impact. The compression spring 408 and support spring 409 installed at the bottom and side wall of the base plate 412 further enhance the shock absorption capability. They can provide corresponding elastic force to offset the vibration when the device is subjected to vibration in various directions such as up and down, left and right, so that the blades can be transported in a relatively stable environment.

[0028] A slider 410 is located at the center of the base plate 412, and a fixed block is located at the center of the movable plate 407. A shock-absorbing rocker 411 is connected between the fixed block and the slider 410. The rocker 411 connects the fixed block at the center of the movable plate 407 and the slider 410 at the center of the base plate. This unique connection method allows for more flexible and regular relative movement between the movable plate 407 and the base plate 412 when subjected to vibration. The rocker 411 can, to a certain extent, alter the transmission path and direction of vibration, converting some longitudinal vibration into rocker swing, thereby reducing the longitudinal impact on the blades. Furthermore, the rocker's swinging motion can also cooperate with other shock-absorbing components to form a dynamic shock-absorbing system, more effectively attenuating vibration energy.

[0029] refer to Figure 6-Figure 8, in specific implementation: when the blade is transported under normal road conditions, the root of the blade is set on the rotating inner support 302, the hydraulic cylinder is started to fill with oil, so that the flip bracket 203 is fixed vertically, the blade body is fixed on the support device 4, the clamping hydraulic cylinder 402 is filled with oil, and the blade body is fixed to the blade bracket 401 by the upper wing plate leading edge 405, the upper wing plate trailing edge 403, and the lower wing plate 404 respectively, and the blade surface is tightly fitted with the shock-absorbing buffer film 406a-1; when the blade is transported, the blade bracket 203 and the angle iron support 406a-2 are subjected to the swing load from the left and right sides, and then the load is transmitted to the movable plate 407, the return spring 406a-3 is compressed, and the upper end of the slide rod 406a-4 follows the blade bracket 401 to swing left and right, absorbing the vibration load on the left and right sides, and the shock-absorbing swing arm 41 1 drives the slider 410 to slide, and cooperates with the compression spring 408 and the support spring 409 to swing up and down to absorb the vibration load on the upper and lower sides. When the blade encounters an obstacle, the clamping hydraulic cylinder 402 of the support device 4 releases oil, the upper wing plate leading edge 405 and the upper wing plate trailing edge 403 open, and the starting hydraulic cylinders 202a-2 and 3 of the fixing device 2 release oil, and the flip bracket 203 and the blade tilt toward the vehicle front side, with the tilt angle controlled within the range of 0°-45°; then the rotating inner support 302 engages with each other through the reduction gear 206, the transmission gear 205a-4, and the connecting gear 205a-3, and the motor 205a-1 provides power. When the blade angle is adjusted to the optimal position, the control switch cuts off the power supply, the motor 205a-1 stops running, and then the transport vehicle starts and smoothly passes the obstacle.

[0030] refer to Figure 1 The vehicle body includes front rails, rear rails, and a slide plate. The front rails are slidably coupled to the rear rails, and the slide plate is slidably mounted above the front and rear rails. The support device 4 is fixed above the slide plate. The front rails are slidably coupled to the rear rails, allowing the vehicle body length to be flexibly adjusted according to the length of the wind turbine blades. When transporting longer blades, the rear rails can be pulled outward relative to the front rails to extend the vehicle body and provide sufficient support space for the blades. For shorter blades, the rear rails can be retracted inward to save space. This adjustable vehicle body length design greatly improves the versatility of the transport device and can meet the transportation needs of wind turbine blades of various specifications.

[0031] In summary, the present invention provides a fixing device 2 and a rotating device 3 at the front end of the trailer body 1. Combined with the flip bracket 203 at the front of the body, the trailer head and the fixing device 2 are cooperatively controlled by the meshing of internal and external gears. This structure enables the attitude angle of the blade to be adjusted during the installation of the wind turbine blade; at the same time, when encountering complex road conditions during transportation, the angle can be adjusted by driving the upper starting hydraulic cylinder 202a-2 and the lower starting hydraulic cylinder 202a-3 to adapt to changes in road conditions. In addition, through the combined design of the rotating inner support 302 and the bearing outer ring 304 in the rotating device 3 and the supporting device, the blade can be firmly fixed at its root position, which can effectively prevent the blade from being displaced laterally or longitudinally during transportation, provide all-round support for the blade, and can evenly disperse the fixing force on the blade to avoid local stress concentration causing damage to the blade.

[0032] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. A wind turbine blade transport device adapted to complex road conditions, comprising a trailer body (1) and a support device (4), wherein the trailer body (1) comprises a front and a body, and the support device (4) is used to support the tail position of the blade, and is characterized in that: Also includes: A fixing device (2) is fixed to the front end of the vehicle body, the fixing device (2) comprising two starting hydraulic cylinders, a first fixing plate (201) and a flip bracket (203), the front end of the vehicle body and the bottom of the first fixing plate (201) are meshed via internal and external gears, one end of the two starting hydraulic cylinders is connected to the upper end of the flip bracket (203), and the other end of the two starting hydraulic cylinders is connected to the first fixing plate (201); The rotating device (3) comprises a rotating inner support (302), a bearing outer ring (304), and a second fixing plate (209), wherein one side of the second fixing plate (209) is connected to the flip bracket (203), and the other side thereof is connected to the bearing outer ring (304), and the rotating inner support (302) is used to fix the root portion of the blade.

2. A wind turbine blade transport device adapted to complex road conditions according to claim 1, characterized in that: The rotating device further comprises a motor (205a-1), a connecting gear (205a-3), a transmission gear (205a-4) and a reduction gear (206); the motor (205a-1) is arranged at the top of the flip bracket (203); the connecting gear (205a-3), the transmission gear (205a-4) and the reduction gear (206) are fixed to the side of the flip bracket (203) close to the second fixed plate (209) in sequence from top to bottom and mesh with each other; the output shaft of the motor (205a-1) and the connecting gear (205a-3) are connected to each other via a pin key; a gear is provided at one end of the rotating inner support (302); and the reduction gear (206) meshes with the rotating inner support (302).

3. The wind turbine blade transport device adapted to complex road conditions according to claim 1, characterized in that: A flip support platform (201a-2) is provided in the middle of the first fixed plate (201), and the flip bracket (203) is connected to the flip support platform (201a-2) via a rotating shaft (201a-1).

4. The wind turbine blade transport device adapted to complex road conditions according to claim 1, characterized in that: A limiting boss (208) is provided between the first fixing plate (201) and the flip bracket (203).

5. The wind turbine blade transport device adapted to complex road conditions according to claim 1, characterized in that: The supporting device (4) comprises a blade bracket (401), a lower wing plate (404), an upper wing plate leading edge (405) and an upper wing plate trailing edge (403); the left and right sides of the upper end of the blade bracket (401) are respectively connected to a clamping hydraulic cylinder (402); the tops of the upper wing plate leading edge (405) and the upper wing plate trailing edge (403) are respectively connected to the other end of the clamping hydraulic cylinder (402); the lower wing plate (404) is fixed to the bottom end of the bracket; the upper wing plate leading edge (405) and the upper wing plate trailing edge (403) are hinged to the lower wing plate (404) via a pin shaft.

6. The wind turbine blade transport device adapted to complex road conditions according to claim 5, characterized in that: Shock-absorbing and buffering films (406a-1) are respectively provided in the upper wing panel leading edge (405), the upper wing panel trailing edge (403) and the lower wing panel (404).

7. The wind turbine blade transport device adapted to complex road conditions according to claim 5, characterized in that: The support device (4) further comprises an angle iron support seat (406a-2), a movable plate (407) and a bottom plate (412); the movable plate (407) is elastically connected to the angle iron support seat (406a-2) via a slide rod (406a-4) and a return spring (406a-3); and the movable plate (407) is elastically connected to the bottom plate (412).

8. The wind turbine blade transport device adapted to complex road conditions according to claim 7, characterized in that: The bottom and side walls of the bottom plate (412) are respectively installed with compression springs (408) and support springs (409), and the movable plate (407) and the bottom plate (412) are elastically connected via the compression springs (408) and the support springs (409).

9. The wind turbine blade transport device adapted to complex road conditions according to claim 7, characterized in that: A slider (410) is provided at the center of the bottom plate (412), a fixed block is provided at the center of the movable plate (407), and a shock-absorbing rocker (411) is connected between the fixed block and the slider (410).

10. The wind turbine blade transportation device adapted to complex road conditions according to claim 1, characterized in that: described The vehicle body comprises a front slide rail, a rear slide rail and a slide plate, the front slide rail and the rear slide rail are slidably sleeved, the slide plate is slidably arranged above the front slide rail and the rear slide rail, and the support device (4) is fixed above the slide plate.

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