Wind power blade web hoisting equipment and method

Abstract

The invention discloses wind power blade web hoisting equipment and method, and relates to the field of wind power blade machining. According to the scheme, the device comprises a portal frame, a hoisting steel cable is arranged on the surface, and a hoisting tool is fixed to the bottom of the hoisting steel cable; the end of the steel cable is fixed to the side face of the lifting tool; the buffer cylinder is fixed to the side face of the portal frame, the interior of the buffer cylinder is telescopically connected with a piston rod, the end of the piston rod is fixedly connected with the retaining steel cable, and an electromagnet is fixed in the piston rod; the gyroscope is fixed on the hoisting tool and is used for acquiring a deviation value; and the adjusting module is used for comparing the deviation value with a preset deviation threshold value and judging whether an adjusting instruction is generated or not. The deviation condition of the wind power blade web is monitored in real time and corrected in real time, the swing amplitude of the wind power blade web is reduced, the effect that safety is still guaranteed without speed reduction is achieved, and therefore the hoisting efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the field of wind turbine blade processing, and particularly to a hoisting device and method for a wind turbine blade web. Background Art

[0002] As a core component of the wind turbine unit, wind turbine blade technology is one of the core technologies of the wind power generation system. It is mainly composed of a suction surface shell of the blade, a pressure surface shell, and a wind turbine blade web bonded by an adhesive. The wind turbine blade web includes a leading edge web and a trailing edge web symmetrically arranged therewith;

[0003] Web hoisting is the first step in bonding the web structure to the shell. The hoisting method determines the quality of the web and the subsequent production efficiency of the blade. For example, the authorized publication number: CN106241598B discloses a method for hoisting a wind turbine blade web, including: S1: After the web is demolded and trimmed, starting from 4m of the positioning length of the web in the mold, fix a U-shaped block at a predetermined distance in the length direction; S2: Before hoisting the web, select a hoisting tooling that matches the inner layer width dimension according to the width of the inner gap between the leading edge web and the trailing edge web in the three regions of the web corresponding to the blade root, blade body, and blade tip; S3: Install the hoisting tooling in the blade root region corresponding to the web; S4: Repeat step S3 in the blade body and blade tip regions corresponding to the web to install the hoisting tooling in the blade body and blade tip regions; S5: After fixing the three hoisting toolings to the crane, use the crane to hoist the web to the bonding area;

[0004] It is fixed to the wind turbine blade web through the hoisting tooling, and then the wind turbine blade web is sent to the designated position by hoisting. The current hoisting method mainly uses a gantry crane to lift the wind turbine blade web. Due to the large volume of the wind turbine blade web, although it has been lightened itself, during the horizontal hoisting process, the wind turbine blade web will still swing on the gantry crane due to inertial force and environmental wind force;

[0005] To solve this problem, there are two methods. One is to increase the number of hoisting toolings, fixedly connect them at multiple positions of the wind turbine blade web, and perform horizontal hoisting. This method, on the one hand, increases the hoisting cost and also increases the time for workers to install the hoisting tooling on the wind turbine blade web, affecting the horizontal hoisting efficiency; the other method is to reduce the horizontal moving speed of the gantry crane, which will also affect the hoisting efficiency;

[0006] If the efficiency is not reduced and it is allowed to swing, and after it is translated to the designated position and waits for it to stabilize, during the translation process, the swing amplitude of the wind turbine blade web is too large, which will also cause the wind turbine blade web to fall off from the hoisting tooling or damage the connection, affecting the hoisting safety. Summary of the Invention

[0007] (I) Object of the Invention

[0008] In view of this, the object of the present invention is to provide a hoisting device and method for the web of a wind turbine blade, so as to realize real-time monitoring of the offset of the web of the wind turbine blade and correct it in real time, reduce the swing amplitude of the web of the wind turbine blade, achieve the effect of ensuring safety without deceleration, and thus improve the hoisting efficiency.

[0009] (II) Technical Solution

[0010] To achieve the above technical objectives, the present invention provides a hoisting device and method for the web of a wind turbine blade:

[0011] It includes: a gantry, on the surface of which a hoisting steel cable is provided, and a lifting tooling is fixed at the bottom of the hoisting steel cable; a holding steel cable, the end of which is fixed to the side of the lifting tooling; a buffer cylinder, fixed to the side of the gantry, inside which a piston rod is telescopically connected, and the end of the piston rod is fixed to the holding steel cable, and an electromagnet is fixed inside the piston rod; a gyroscope, fixed on the lifting tooling, used to obtain an offset value, marked as P, where P is a value greater than or equal to 0; an adjustment module, which compares the offset value with a preset offset threshold to determine whether to generate an adjustment instruction; a central processing unit, which controls the electromagnet to work and adsorb the piston rod according to the adjustment instruction, so that the piston rod pulls the lifting tooling through the holding steel cable to make it stable.

[0012] Preferably, a winding machine is fixed on the gantry, and the winding machine includes: a housing, fixed on the gantry; a motor, fixed on the housing; a wire wheel, rotatably connected inside the gantry, and the end of the hoisting steel cable is wound and fixed on the wire wheel.

[0013] Preferably, at least two winding machines are provided, and the hoisting steel cables correspond to the winding machines one by one.

[0014] Preferably, a spring is sleeved on the outer surface of the piston rod, and the two ends of the spring are respectively abutted against the piston rod and the buffer cylinder.

[0015] Preferably, a fixing frame is fixed on the side of the gantry, and the buffer cylinder is fixed on the fixing frame, and the fixing frame corresponds to the winding machine one by one.

[0016] Preferably, reinforcing ribs are fixed on the fixing frame.

[0017] Preferably, the holding steel cable, the buffer cylinder, the piston rod and the electromagnet form a set of stability maintaining mechanisms, and a set of stability maintaining mechanisms is equipped on both sides of each lifting tooling. Classified by the same direction, they are divided into a first stability maintaining mechanism and a second stability maintaining mechanism, marked as S and N respectively.

[0018] Preferably, it includes: after the staff fixes the wind turbine blade web on the lifting tooling, the staff operates the gantry to move the lifting tooling to the designated station; during the translation of the gantry, the gyroscope obtains the offset value P; the adjustment module compares the offset value with the preset offset threshold to determine whether to generate an adjustment instruction. If an adjustment instruction is generated, the central processor controls the operation of S or N for adjustment according to the adjustment instruction.

[0019] Preferably, the method for the adjustment module to determine whether to generate an adjustment instruction is as follows: the adjustment instruction includes a first adjustment instruction and a second adjustment instruction; if P is equal to the preset offset threshold, it is determined that the translation is normal and no adjustment instruction is generated; if P is greater than the preset offset threshold, it is determined that the offset is towards the S side and the first adjustment instruction is generated; if P is less than the preset offset threshold, it is determined that the offset is towards the N side and the second adjustment instruction is generated.

[0020] Preferably, the method for the central processor to control the operation of S or N for adjustment according to the adjustment instruction is as follows: if the adjustment module generates the first adjustment instruction, the central processor controls the operation of N according to the first adjustment instruction; if the adjustment module generates the second adjustment instruction, the central processor controls the operation of S according to the first adjustment instruction.

[0021] From the above technical solutions, it can be seen that the present application has the following beneficial effects:

[0022] 1: By respectively providing a first stability maintaining mechanism and a second stability maintaining mechanism on both sides of the lifting tooling, and determining whether the lifting tooling is offset through the adjustment module. During the translation of the wind turbine blade web, if an offset occurs, the positions of the lifting tooling are adjusted in reverse by the cooperation of the first stability maintaining mechanism and the second stability maintaining mechanism, ensuring the stability of the wind turbine blade web during translation.

[0023] 2: By ensuring the stability of the wind turbine blade web during translation in real time, the problem of reducing the translation and lifting speed due to stability is solved, the translation and lifting speed of the wind turbine blade web can be increased, and at the same time, the safety of translation and lifting can be improved. Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only the embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0025] Figure 1 It is the overall structural schematic diagram of the lifting equipment for the wind turbine blade web provided by the present invention;

[0026] Figure 2Partial structural schematic diagram of the wind turbine blade web hoisting equipment provided by the present invention;

[0027] Figure 3 Front view structural schematic diagram of the wind turbine blade web hoisting equipment provided by the present invention;

[0028] Figure 4 Of the wind turbine blade web hoisting equipment provided by the present invention Figure 3 Schematic diagram of the sectional structure at A-A;

[0029] Figure 5 Of the wind turbine blade web hoisting equipment provided by the present invention Figure 4 Schematic diagram of the enlarged structure at B;

[0030] Figure 6 Of the wind turbine blade web hoisting equipment provided by the present invention Figure 4 Schematic diagram of the enlarged structure at C;

[0031] Figure 7 Schematic diagram of the wind turbine blade web hoisting equipment provided by the present invention when an electric control box is provided;

[0032] Figure 8 Schematic diagram of the wind turbine blade web hoisting equipment provided by the present invention when a gyroscope is provided;

[0033] Figure 9 Flow chart of the wind turbine blade web hoisting method provided by the present invention.

[0034] Description of the drawings: 1. Gantry; 2. Winder; 21. Housing; 22. Motor; 23. Cable reel; 3. Hoisting steel cable; 4. Lifting tooling; 41. Gyroscope; 5. Holding steel cable; 6. Buffer cylinder; 61. Piston rod; 62. Electromagnet; 63. Spring; 8. Fixed frame; 81. Reinforcing rib. Detailed implementation manners

[0035] The following description is essentially exemplary only and is not intended to limit the present disclosure, its application and uses. It should be understood that in all these drawings, the same or similar reference numerals indicate the same or similar parts and features. Each drawing only schematically shows the concept and principle of the embodiments of the present disclosure, and does not necessarily show the specific dimensions and their ratios of the embodiments of the present disclosure. In a specific part of a specific drawing, the relevant details or structures of the embodiments of the present disclosure may be illustrated in an exaggerated manner.

[0036] Refer to Figures 1 - 9 :

[0037] A hoisting device for the web of a wind turbine blade, including a gantry 1. The bottom of the gantry 1 is equipped with rollers. In the processing workshop, guide rails can be installed on the ground for the rollers to roll. The gantry 1 can be driven by a motor to move the rollers or pushed manually, which will not be elaborated here;

[0038] A winding machine 2 is fixed on the gantry 1. A hoisting steel cable 3 is provided at the output end of the winding machine 2. The bottom of the hoisting steel cable 3 is fixed with a lifting tooling 4. The lifting tooling 4 is designed to match the web of the wind turbine blade according to actual requirements and is used to connect and fix the web of the wind turbine blade;

[0039] Specifically, refer to Appendix Figure 1 , Appendix Figure 3 and Appendix Figure 6 As shown, the winding machine 2 includes: a housing 21 fixed on the gantry 1; a motor 22 fixed on the housing 21; a wire wheel 23 rotatably connected inside the gantry 1, and the end of the hoisting steel cable 3 is wound and fixed on the wire wheel 2. The surface is provided with the hoisting steel cable 3. By driving the wire wheel 23 to rotate through the motor 22, the length of the hoisting steel cable 3 extending out of the housing 21 can be adjusted, thereby adjusting the height of the lifting tooling 4 and controlling the lifting and lowering of the web of the wind turbine blade. There are at least two winding machines 2, and the hoisting steel cables 3 correspond to the winding machines 2 one by one.

[0040] Refer to Appendix Figure 1 , Appendix Figure 2 , Appendix Figure 4 and Appendix Figure 5 As shown, a retaining steel cable 5 is fixed on the side of the lifting tooling 4. A stability maintaining mechanism is installed on the side of the gantry 1. The stability maintaining mechanism includes: a buffer cylinder 6 fixed on the side of the gantry 1. A piston rod 61 is telescopically connected inside the buffer cylinder 6, and the end of the piston rod 61 is fixed to the retaining steel cable 5. An electromagnet 62 is fixed inside the piston rod 61; a gyroscope 41 fixed on the lifting tooling 4 for obtaining an offset value, marked as P, where P is a value greater than or equal to 0; an adjustment module for comparing the offset value with a preset offset threshold to determine whether to generate an adjustment instruction; a central processing unit for controlling the electromagnet 62 to work and adsorb the piston rod 61 according to the adjustment instruction, so that the piston rod 61 pulls the lifting tooling 4 through the retaining steel cable 5 to make it stable. For example, if the lifting tooling 4 deflects to the left, it will be pulled to the right, giving it a reverse force, thus ensuring the stability of the lifting tooling 4.

[0041] Furthermore, refer to Figure 6 As shown, a spring 63 is sleeved on the outer surface of the piston rod 61. The two ends of the spring 63 are respectively abutted against the piston rod 61 and the buffer cylinder 6. By applying an elastic force to the piston rod 61 through the spring 63, if the lifting tooling 4 swings, that is, the web of the wind turbine blade deflects from the vertical line, the spring 63 can actively provide a reverse pulling force to the buffer steel cable 5. As long as the swinging force of the lifting tooling 4 is less than the elastic force of the spring 63, the swinging of the lifting tooling 4 can be actively avoided.

[0042] Further, as shown in Figure 1 and Figure 2 shown, a fixing frame 8 is fixed on the side of the gantry 1, and the buffer cylinder 6 is fixed on the fixing frame 8. The fixing frames 8 correspond to the winding machines 2 one by one. Reinforcing ribs 81 are fixed on the fixing frames 8 to improve the strength of the fixing frames 8.

[0043] It is worth mentioning that the steel cable 5, the buffer cylinder 6, the piston rod 61 and the electromagnet 62 form a set of stability maintaining mechanisms. A set of stability maintaining mechanisms is arranged on both sides of each lifting tooling 4. Classified in the same direction, they are divided into a first stability maintaining mechanism and a second stability maintaining mechanism, which are respectively marked as S and N.

[0044] Referring to Figure 7 、 Figure 8 and Figure 9 shown, a method for hoisting the web of a wind turbine blade is realized based on the above-mentioned hoisting equipment for the web of a wind turbine blade, and includes: after the staff fixes the web of the wind turbine blade on the lifting tooling 4, the staff operates the gantry 1 to move the lifting tooling 4 to a designated working position; during the translation of the gantry 1, the gyroscope 41 obtains the offset value P; the adjustment module compares the offset value with a preset offset threshold value. The preset offset threshold value is the intermediate value set when the web of the wind turbine blade is vertical. Considering that the web of the wind turbine blade will swing in two directions opposite to the vertical line, the intermediate value can be determined by those skilled in the art according to the historical on-site processing situation. For example, in the historical on-site processing situation, the maximum one-way swing value of the web of the wind turbine blade is L, then L can be used as the intermediate value to determine whether to generate an adjustment instruction. If an adjustment instruction is generated; the central processor controls the work of S or N for adjustment according to the adjustment instruction;

[0045] The method for the adjustment module to determine whether to generate an adjustment instruction is: the adjustment instruction includes a first adjustment instruction and a second adjustment instruction; if P is equal to the preset offset threshold value, it is determined that the translation is normal and no adjustment instruction is generated; if P is greater than the preset offset threshold value, it is determined that the offset is towards the S side and the first adjustment instruction is generated; if P is less than the preset offset threshold value, it is determined that the offset is towards the N side and the second adjustment instruction is generated;

[0046] The method for the central processor to control the work of S or N for adjustment according to the adjustment instruction is: if the adjustment module generates the first adjustment instruction, the central processor controls the work of N according to the first adjustment instruction; if the adjustment module generates the second adjustment instruction, the central processor controls the work of S according to the first adjustment instruction, that is, through mutual reverse checks and balances, the stability of the web of the wind turbine blade is ensured.

[0047] The exemplary embodiments of the solution proposed by the present disclosure have been described in detail above with reference to the preferred embodiments. However, those skilled in the art can understand that, without departing from the concept of the present disclosure, various modifications and variations can be made to the above specific embodiments, and various combinations of the technical features and structures proposed by the present disclosure can be made without exceeding the protection scope of the present disclosure. The protection scope of the present disclosure is determined by the appended claims.

Claims

1. A hoisting device for the web of a wind turbine blade, characterized in that Including: A gantry (1) with a hoisting steel cable (3) on its surface, and a lifting tooling (4) is fixed at the bottom of the hoisting steel cable (3); A holding cable (5) with its end fixed to the side of the lifting tooling (4); A buffer cylinder (6) fixed to the side of the gantry (1). A piston rod (61) is telescopically connected inside the buffer cylinder (6), and the end of the piston rod (61) is fixedly connected to the holding cable (5). An electromagnet (62) is fixed inside the piston rod (61); A gyroscope (41) fixed on the lifting tooling (4) for obtaining an offset value, marked as P, where P is a value greater than or equal to 0; An adjustment module for comparing the offset value with a preset offset threshold to determine whether to generate an adjustment instruction; a central processor for controlling the electromagnet (62) to work to adsorb the piston rod (61) according to the adjustment instruction, so that the piston rod (61) pulls the lifting tooling (4) through the holding cable (5) to make it stable.

2. The hoisting device for the web of a wind turbine blade according to claim 1, characterized in that, A winding machine (2) is fixed on the gantry (1), and the winding machine (2) includes: A housing (21) fixed on the gantry (1); A motor (22) fixed on the housing (21); A wire wheel (23) rotatably connected inside the gantry (1), and the end of the hoisting steel cable (3) is wound and fixed on the wire wheel (23).

3. The wind turbine blade web hoisting device according to claim 2, characterized in that, At least two winding machines (2) are provided, and the hoisting steel cables (3) correspond to the winding machines (2) one by one.

4. A wind turbine blade web hoisting device according to claim 1, characterized in that, A spring (63) is sleeved on the outer surface of the piston rod (61), and the two ends of the spring (63) are respectively abutted against the piston rod (61) and the buffer cylinder (6).

5. The hoisting device for the web of a wind turbine blade according to claim 1, characterized in that, A fixing frame (8) is fixed on the side of the gantry (1), and the buffer cylinder (6) is fixed on the fixing frame (8), and the fixing frame (8) corresponds to the winding machine (2) one by one.

6. The wind power blade web hoisting device according to claim 5, wherein, A reinforcing rib (81) is fixed on the fixing frame (8).

7. A wind turbine blade web hoisting device according to claim 1, characterized in that, The holding cable (5), the buffer cylinder (6), the piston rod (61) and the electromagnet (62) form a set of stability maintaining mechanisms. A set of stability maintaining mechanisms is provided on both sides of each lifting tooling (4). Classified by the same direction, they are divided into a first stability maintaining mechanism and a second stability maintaining mechanism, marked as S and N respectively.

8. A method for hoisting the web of a wind turbine blade, which is realized based on the hoisting equipment for the web of a wind turbine blade according to any one of claims 1-7, characterized in that, Including: After the staff fixes the wind turbine blade web on the lifting tooling (4), the staff operates the gantry (1) to move the lifting tooling (4) horizontally to the designated working station; During the horizontal movement of the gantry (1), the gyroscope (41) obtains the offset value P; The adjustment module compares the offset value with the preset offset threshold to determine whether to generate an adjustment instruction. If an adjustment instruction is generated; The central processor controls the operation of S or N for adjustment according to the adjustment instruction.

9. A method for hoisting the web of a wind turbine blade according to claim 1, characterized in that, The method for the adjustment module to determine whether to generate an adjustment instruction is: The adjustment instruction includes a first adjustment instruction and a second adjustment instruction; If P is equal to the preset offset threshold, it is determined that the horizontal movement is normal and no adjustment instruction is generated; If P is greater than the preset offset threshold, it is determined that the offset is towards the S side and a first adjustment instruction is generated; If P is less than the preset offset threshold, it is determined that the offset is towards the N side and a second adjustment instruction is generated.

10. A method for hoisting the web of a wind turbine blade according to claim 1, characterized in that, The method for the central processor to control the operation of S or N for adjustment according to the adjustment instruction is: If the adjustment module generates a first adjustment instruction, the central processing unit controls N to work according to the first adjustment instruction; If the adjustment module generates a second adjustment instruction, the central processing unit controls S to work according to the first adjustment instruction.

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