Universal transfer device for wind power blades

Abstract

The utility model provides a wind power blade universal type transfer device which comprises an arc support base, a first adjusting tray and a second adjusting tray, the first adjusting tray and the second adjusting tray are connected with the arc support base, and the first adjusting tray and the second adjusting tray can adjust the radius of the device by sliding along guide grooves. Quick switching of different diameters can be achieved by adjusting the trays to move along the guide grooves of the trays, so that the device is adaptive to wind power blades with different pitch circles, it is guaranteed that one set of device can be adaptive to blades with various pitch circles, the utilization rate of the device is improved to the maximum extent, and the elimination rate of the device is reduced to the maximum extent.

Description

Technical Field

[0001] The utility model relates to the field of wind turbine blade transportation, in particular to a universal transportation device for wind turbine blades with different blade root pitch circles. Background Art

[0002] Wind turbine blades are the core components of wind turbines that convert natural wind energy into electricity for wind turbines, and are also the main basis for measuring the design and technical level of wind turbines. With the continuous development of wind power technology, the weight of blades and the diameter of the blade root pitch circle are developing towards a larger size, especially for offshore wind turbine blades, whose weight is greater than 40 tons and the blade root pitch circle diameter is greater than 4500mm. In the existing wind turbine blade transportation technology, the conventional practice is to set a transfer device at the blade root and the blade tip respectively. The main problem faced by traditional transfer devices is that special transfer devices need to be equipped for blades with different pitch circle sizes, which leads to a series of problems such as the incompatibility between transfer devices, large number of configurations, short service life and high elimination rate. These problems have led to a significant increase in the cost of transfer devices, which has brought great inconvenience to the transportation of wind turbine blades.

[0003] In addition, there are two conventional ways to transport wind turbine blades: one is a forklift, and the other is an AGV (handling robot). Because the two types of equipment have different structural requirements for the transport device, different transport devices are required for transport using a forklift and transport using an AGV.

[0004] In addition, the root of a wind turbine blade is a perfect circle. After the blade is placed on the transfer device, the pitch circle of the blade root will be deformed due to the wind turbine blade's own weight.

[0005] The search did not find the same technical solution as the utility model, but only found some related comparative technical documents, mainly the following:

[0006] 1. The patent with application number 202120158964.4 discloses a new type of wind turbine blade transfer device, which mainly arranges a hydraulic ejection mechanism that is evenly distributed and fixedly connected along the circumference of the supporting template, and is used in conjunction with a follow-up plate to achieve the change of the device radius. Although this patent allows one transfer device to match a variety of blade types, the operation steps during the transfer of wind turbine blades are complicated, and the radius of the device cannot be quickly adjusted. Moreover, the transfer device relies on the follow-up plate to contact the wind turbine blade, the force area is small, and the pitch circle deformation during transportation is large.

[0007] 2. The patent with application number 202123157266.1 proposes a megawatt-class wind turbine blade root transfer tooling. A suction cup fixture is added to the bracket. During the blade lifting, the tooling and the blade are clamped by the suction cup fixture, so that the blade can remain stable under uneven force or unstable center of gravity, without large deflection and sliding, and the staff can operate it with confidence; it can save the use of driving to a great extent and facilitate production use. Baffles are detachably installed on both sides of the support rod that carries the suction cup, which is used to limit the support rod, and baffles are provided at both ends of the support rod to avoid stress concentration and damage to the baffles; the baffles are detachable and installed for easy maintenance and replacement. Although this patent can avoid stress concentration, it requires a special transfer device for blades with different pitch circle sizes, and the cost of the transfer device is high.

[0008] 3. The patent with application number 201520685256.0 proposes a wind turbine blade transfer tool, including a vehicle body for placing the root part of the blade, at least four support columns are arranged on the vehicle body and are distributed at the four corners of the vehicle body, a shock absorbing device connecting the upper and lower parts of the support column is arranged in the middle part of the support column, and mold plates mounted on the support column and fitting the root part of the blade are arranged on both sides of the vehicle body, and the side in contact with the root part of the blade is set to be consistent with the mold line of the root part of the blade, and a supporting pipe is arranged between the two layers of the mold plates. The utility model achieves the purpose of shock absorption by adding a spring shock absorbing device, so that the blade is always closely connected with the tool during the transfer process. Although this patent can reduce the shaking of the blade and reduce the probability of blade damage, it needs to be equipped with a special transfer device for blades with different pitch circle sizes, and the cost of the transfer device is high.

[0009] Through the analysis of the above patents, it can be found that the current wind turbine blade transfer device, although it has a hydraulic ejection mechanism and a device radius change method that cooperates with the molded plate, does not take into account the problem that this method is prone to stress concentration leading to large pitch circle deformation, and the device that takes into account the stress concentration problem cannot achieve the adjustable device radius, so the above-mentioned problems still exist, and it is necessary to improve this. Utility Model Content

[0010] The technical problem to be solved by the utility model is: to provide a universal transfer device for wind turbine blades, which can not only realize rapid switching of different diameters, thereby adapting to wind turbine blades with different pitch circles, ensuring that a set of devices can adapt to blades with multiple pitch circles, maximizing the utilization rate of the device and reducing the device elimination rate; but also can effectively control the deformation of the root pitch circle of the wind turbine blades during transportation; in addition, the transfer device in the utility model can adapt to two kinds of power transfer equipment at the same time, thereby improving the versatility of the device and reducing costs.

[0011] The technical solution proposed by the utility model is: a universal transport device for wind turbine blades, including an arc support base, which is characterized in that it also includes an adjustment tray 1 and an adjustment tray 2, the adjustment tray 1 and the adjustment tray 2 are connected to the arc support base, and the adjustment tray 1 and the adjustment tray 2 can adjust the radius of the device by sliding along the guide groove.

[0012] Furthermore, the adjustment tray 1 is a free-form arc panel with connecting plates 1 on both sides, the connecting plates 1 have two guide grooves and several circular holes, and the adjustment tray 1 is connected to the arc support base through a guide shaft and bolts.

[0013] Furthermore, the second adjustment tray is provided with connecting plates on both sides of the free-form arc panel, the connecting plates are provided with two guide grooves and several round holes, and the second adjustment tray is connected to the arc support base through a guide shaft and a hexagonal bolt.

[0014] Furthermore, the guide shaft passes through the guide groove and the circular hole on the arc support base, and is connected with the hexagonal slotted nut and the cotter pin to fix the adjustment tray one or the adjustment tray two.

[0015] Furthermore, the bolt passes through the circular hole on the adjusting tray 1 or the adjusting tray 2, and passes through the circular hole on the arc support base to fix the adjusting tray 1 or the adjusting tray 2.

[0016] Furthermore, the arc support base is a structure in which a semicircle is cut off from a rectangular parallelepiped, the bottom of the arc is solid, and the two sides are hollow.

[0017] Furthermore, the arc support base has many round holes on the front and rear sides for convenient bolt fixing, the upper ends have hanging ears for convenient locking belts to pass through, and the lower part has four pairs of pin holes connected to the base frame.

[0018] Furthermore, four pairs of horizontal bars in the middle of the base frame are provided with pin holes connected to the arc support base, and four corners are respectively connected with a wheel and an AGV extended support foot.

[0019] Furthermore, the arc support base and the base frame are connected to each other through a pin shaft, so that the arc support base can rotate in the span direction to ensure that the device is in full contact with the blade.

[0020] Furthermore, the AGV extended support leg is a square barrel-shaped structure with a bolt hole connected to the base on the top. The AGV extended support leg (6) can be disassembled and switched to a wheel anti-rollover support leg, and can also be adapted to a forklift.

[0021] The beneficial effects of the utility model are as follows: 1) The utility model can realize rapid switching of different diameters by adjusting the tray to move along the respective guide grooves, so as to adapt to wind turbine blades with different pitch circles, ensure that a set of devices can adapt to a variety of pitch circle blades, maximize the utilization rate of the device, and reduce the device elimination rate; 2) The utility model can be adapted to both forklifts and AGVs by disassembling and assembling the AGV extension support foot, and the position is switched to the wheel anti-rollover support foot. The device has strong versatility and can reduce costs; 3) The utility model adopts the method of jointly carrying the blade load by the arc support base and the adjustment tray, which increases the force area, reduces the concentrated stress, and can effectively control the deformation of the pitch circle of the blade root of the wind turbine blade. 4) The arc support base of the device is connected to the base frame by a pin shaft, so that the arc support base can rotate in the span direction to ensure that the device is in full contact with the blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of a universal transport device for wind turbine blades;

[0023] Figure 2 A diagram of steps for adjusting the radius of a universal transport device for wind turbine blades;

[0024] Figure 3 A schematic diagram of the three-dimensional structure of the adjustment tray 1;

[0025] Figure 4 A schematic diagram of the three-dimensional structure of the adjustment tray 2;

[0026] Figure 5 It is a schematic diagram of the three-dimensional structure of the arc support base;

[0027] Figure 6 A front view of a universal wind turbine blade transport device carrying a wind turbine blade;

[0028] Explanation of the reference numerals: (1) arc support base; (101) pin hole; (102) arc bottom; (103) round hole; (2) adjustment tray 1; (201) guide groove; (203) connecting plate 1; (204) curved panel; (3) adjustment tray 2; (303) connecting plate 2; (4) base frame; (5) wheel; (6) AGV extension leg; (7) guide shaft; (8) hexagonal slotted nut; (9) cotter pin; (10) hexagonal bolt. DETAILED DESCRIPTION

[0029] The utility model will be further described below in conjunction with the accompanying drawings.

[0030] A universal transport device for wind turbine blades, as shown in the attached Figures 1 to 6As shown, the specific structure is as follows: a universal transfer device for wind turbine blades, including an arc support base 1, which is characterized in that it also includes an adjustment tray 1 2 and an adjustment tray 2 3, and the adjustment tray 1 2 and the adjustment tray 2 3 are connected to the arc support base 1, and the adjustment tray 1 2 and the adjustment tray 2 3 can adjust the radius of the device by sliding along the guide groove 201.

[0031] Furthermore, the adjusting tray 2 is a free-standing arc panel 204 with connecting plates 203 on both sides, the connecting plates 203 have two guide grooves 201 and several circular holes 103, and the adjusting tray 2 is connected to the arc support base 1 through the guide shaft 7 and the bolt 10.

[0032] Furthermore, the adjustment tray 2 3 is a free-form arc panel 304 with connecting plates 2 303 on both sides, the connecting plates 2 303 have two guide grooves 201 and several round holes 103 , and the adjustment tray 2 3 is connected to the arc support base 1 through the guide shaft 7 and the hexagonal bolts 10 .

[0033] Furthermore, the guide shaft 7 passes through the guide groove 201 and the circular hole on the arc support base 1, and is connected with the hexagonal slotted nut 10 and the cotter pin 9 to fix the adjustment tray 1 2 or the adjustment tray 2 3.

[0034] Furthermore, the bolt 10 passes through the circular hole 103 on the adjusting tray 1 2 or the adjusting tray 2 3 , and passes through the circular hole 103 on the arc support base 1 to fix the adjusting tray 1 2 or the adjusting tray 2 3 .

[0035] Furthermore, the arc support base 1 is a structure in which a semicircle is cut off from a rectangular parallelepiped, the arc bottom 102 is solid, and the two sides are hollow.

[0036] Furthermore, the arc support base 1 has many round holes 103 on the front and rear sides for convenient fixing of the bolts 10, the upper ends have hanging ears for convenient passing of the locking belt, and the lower part has four pairs of pin holes 101 connected to the base frame 4.

[0037] Furthermore, the arc support base 1 and the base frame 4 are connected to each other through a pin shaft, so that the arc support base 1 can rotate in the span direction to ensure that the device is in full contact with the blade.

[0038] Furthermore, there are pin holes connected to the arc support base 1 on the four pairs of horizontal bars in the middle of the base frame 4, and a wheel 5 and an AGV extended support leg 6 are respectively connected to the four corners.

[0039] Furthermore, the AGV extended support leg 6 is a square barrel-shaped structure with bolt holes connected to the base on the top. The AGV extended support leg 6 can be disassembled and switched to a wheel anti-rollover support leg, which can also be adapted to a forklift.

[0040] Working method: If the device radius needs to be adjusted from large to small, loosen the positioning bolts, the adjustment tray will automatically slide down along the guide groove, and use it with the locking belt. After adjusting to the required position, the adjustment tray is fixed to the arc support base through the guide shaft and hexagonal bolts. If the device radius needs to be adjusted from small to large, use the locking belt. One end of the locking belt is fixed to the ears on the left and right sides of the device, and the other end passes through the bottom of the adjustment tray. Pull up the adjustment tray. After adjusting to the required position, the adjustment tray is fixed to the arc support base through the guide shaft and hexagonal bolts.

Claims

1. A universal transport device for wind turbine blades, comprising an arc support base (1), characterized in that: It also comprises an adjustment tray 1 (2) and an adjustment tray 2 (3), wherein the adjustment tray 1 (2) and the adjustment tray 2 (3) are connected to the arc support base (1), and the adjustment tray 1 (2) and the adjustment tray 2 (3) can adjust the device radius by sliding along the guide groove (201).

2. A universal wind turbine blade transport device according to claim 1, characterized in that: The adjustment tray 1 (2) is a free-standing arc panel (204) with connecting plates 1 (203) on both sides. The connecting plates 1 (203) have two guide grooves (201) and a plurality of circular holes (103). The adjustment tray 1 (2) is connected to the arc support base (1) via a guide shaft (7) and bolts (10).

3. A universal wind turbine blade transport device according to claim 1, characterized in that: The second adjustment tray (3) is a free-standing arc panel (204) with two connecting plates (303) on both sides. The connecting plate (303) has two guide grooves (201) and a plurality of circular holes (103). The second adjustment tray (3) is connected to the arc support base (1) via a guide shaft (7) and bolts (10).

4. A universal wind turbine blade transport device according to claim 2 or claim 3, characterized in that: The guide shaft (7) passes through the guide groove (201) and the circular hole (103) on the arc support base (1), and is connected with the hexagonal slotted nut (8) and the cotter pin (9) to fix the adjustment tray 1 (2) or the adjustment tray 2 (3).

5. A universal wind turbine blade transport device according to claim 2 or claim 3, characterized in that: The bolt (10) passes through the circular hole (103) on the adjusting tray 1 (2) or the adjusting tray 2 (3), and passes through the circular hole (103) on the arc support base (1), thereby fixing the adjusting tray 1 (2) or the adjusting tray 2 (3).

6. A universal wind turbine blade transport device according to claim 1, characterized in that: The arc support base (1) is a structure in which a semicircle is cut off from a rectangular parallelepiped, the arc bottom (102) is solid, and the two sides are hollow.

7. A universal wind turbine blade transport device according to claim 1, characterized in that: The arc support base (1) has a plurality of circular holes (103) on the front and rear sides for convenient bolt fixing, has hanging ears at both ends at the top for convenient locking belts to pass through, and has four pairs of pin holes (101) at the bottom for connection with the base frame (4).

8. A universal wind turbine blade transport device according to claim 7, characterized in that: The four pairs of horizontal bars in the middle of the base frame (4) are provided with pin holes connected to the arc support base (1), and the four corners are respectively connected to a wheel (5) and an AGV extended support foot (6).

9. A universal wind turbine blade transport device according to claim 8, characterized in that: The arc support base (1) and the base frame (4) are connected to each other via a pin shaft, so that the arc support base (1) can rotate in the span direction, ensuring that the device is in full contact with the blade.

10. A universal wind turbine blade transport device according to claim 8, characterized in that: The AGV extended support leg (6) is a square barrel-shaped structure, with a bolt hole connected to the base (1) on the top. The AGV extended support leg (6) can be disassembled and switched to a wheel anti-rollover support leg, and can also be adapted for a forklift.

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