Tool for impregnating blades of wind driven generator

Abstract

The utility model belongs to the technical field of manufacturing of wind driven generators, and particularly discloses a tool for dipping blades of a wind driven generator, which comprises a base, a dipping box filled with dipping liquid is arranged on the base, a lifting mechanism for lifting the blades is fixedly mounted right above the dipping box, and a connecting plate is arranged at the bottom of the lifting mechanism. A sealing supporting structure used for fixing and sealing the blade is arranged on the connecting plate, and the end part of the blade is sealed through the sealing supporting structure, so that impregnation liquid is prevented from entering the blade when the lifting mechanism moves the blade into the impregnation box; the tool solves the problems that one end of an existing wind driven generator blade is open, the other end of the existing wind driven generator blade is closed, the whole blade is of a cavity structure, dipping liquid easily enters the blade due to direct dipping, and installation of the blade is affected, and the tool can guarantee smooth dipping corrosion prevention work of the wind driven generator blade.

Description

Technical Field

[0001] The utility model belongs to the technical field of wind generator preparation, and in particular relates to a tool for impregnating blades of a wind generator. Background Art

[0002] Wind turbines are very susceptible to atmospheric corrosion due to being in an atmospheric environment such as wind, snow, rain, fog, and salt all year round. Therefore, the anti-corrosion treatment of wind turbines will directly affect the service life and safety of the entire machine. In the entire wind turbine, the blades are the most critical and core part, accounting for 15% to 20% of the cost of the entire wind turbine. Therefore, improving the service life and quality of blades and reducing the production and manufacturing costs of blades are crucial to reducing the price of wind power.

[0003] According to the capacity of wind turbines, my country divides wind turbines into micro wind turbines (0.1kW~1kW), small wind turbines (1kW~10kW), medium wind turbines (10kW~100kW), large wind turbines (100kW~1000kW) and megawatt wind turbines (above 1000kW). Among them, small wind turbines have the characteristics of small size, simple structure, flexible installation and convenient maintenance. They are widely used in outdoor activities such as power supply, navigation, camping, survival in the wild in rural and remote areas, as well as intelligent construction of infrastructure such as buildings, roads and bridges. In the process of preparing small wind turbines, it is necessary to impregnate the blades of the wind turbine for corrosion protection. The current practice is to directly put the blades into the impregnation box for impregnation. However, the structure of some wind turbine blades is open at one end and closed at the other end, and the blades are hollow as a whole. Direct impregnation can easily cause the impregnation liquid to enter the interior of the blades, affecting the installation of the blades. If the conventional mechanical plugging method is used for impregnation, the cavity structure of the wind turbine blades will be affected after impregnation.

[0004] In view of this, the inventor provides a tool for impregnating blades of a wind turbine. Utility Model Content

[0005] The purpose of the utility model is to overcome the shortcomings of the above-mentioned prior art and provide a tool for impregnation of wind turbine blades, which is used to solve the problem that some wind turbine blades have an open end and a closed end, and the blades are hollow in structure as a whole. Direct impregnation easily causes the impregnation liquid to enter the interior of the blades, affecting the installation of the blades.

[0006] The purpose of the utility model is to solve the problem through the following technical solutions:

[0007] A tooling for impregnating a wind turbine blade. The tooling is mainly used for processing blades with a cavity structure, and one end of the blade is open and the other end is closed. It is characterized in that it includes a base, an impregnation tank is arranged on the upper part of the base, an impregnation liquid is contained in the impregnation tank, a lifting mechanism is fixedly installed directly above the impregnation tank, a horizontal connecting plate is arranged at the bottom of the lifting mechanism, and a sealing and supporting structure for fixing and sealing the blade is arranged on the connecting plate.

[0008] Further, the sealing and supporting structure includes a circulating air pump and a gas guiding and supporting pipe arranged on the connecting plate. One end of the gas guiding and supporting pipe is connected to the circulating air pump, and the other end extends into the blade from the open end of the blade. And a sealing airbag communicating with the gas guiding and supporting pipe is arranged on the gas guiding and supporting pipe on the side of the open end of the blade. At the same time, a supporting airbag communicating with the gas guiding and supporting pipe is arranged on the gas guiding and supporting pipe inside the blade cavity, and the supporting airbags are equidistantly distributed along the length direction of the blade.

[0009] Further, the tooling further includes a stirring structure, and the stirring structure is used for stirring the impregnation liquid in the impregnation tank.

[0010] Further, the stirring structure includes a stirring shaft, stirring blades, a first gear, a second gear and a first driving motor.

[0011] Among them, the base is a shell structure, the first gear, the second gear and the driving motor are arranged inside the base, one end of the stirring shaft is rotatably connected to the base, and a first gear is fixedly arranged on the circumferential surface of the stirring shaft. The first gear is meshed and driven with the second gear, the second gear is fixedly connected to the output shaft of the first driving motor, the other end of the stirring shaft extends into the impregnation tank, and stirring blades are fixedly connected to the stirring shaft at the end extending into the impregnation tank.

[0012] Further, the tooling further includes a supporting mechanism. The supporting mechanism includes an L-shaped support frame. The vertical section of the support frame is fixed on the base and is located on one side of the impregnation tank. The horizontal section of the support frame is located above the impregnation tank, and the lifting mechanism is fixed on the horizontal section of the support frame.

[0013] Further, the supporting structure further includes a fixing component for fixing the support frame. The fixing component includes a fixing plate and a vertically arranged first hydraulic cylinder. One end of the fixing plate is fixedly connected to the vertical section of the support frame, and the other end is fixedly connected to the cylinder body of the first hydraulic cylinder. The piston rod of the first hydraulic cylinder contacts the upper surface of the base.

[0014] Further, the lifting mechanism includes a vertically arranged second hydraulic cylinder. The cylinder body of the second hydraulic cylinder is fixedly connected to the horizontal section of the support frame through a fixing frame, and the bottom of the piston rod of the second hydraulic cylinder is fixedly connected to the connecting plate through a mounting frame.

[0015] Further, the bearing at the connection between the stirring shaft and the impregnation tank adopts a sealed bearing.

[0016] Further, the support structure further includes a rotating assembly for rotating the support frame, and the rotating assembly includes a third gear, a fourth gear, and a second driving motor;

[0017] Wherein, the vertical section of the support frame is rotatably connected to the base, the third gear is fixedly arranged on the circumference of the vertical section of the support frame, the second driving motor is arranged on the base and on one side of the vertical section of the support frame, the fourth gear is fixedly arranged on the output shaft of the second driving motor, and the fourth gear meshes with the third gear for transmission.

[0018] Further, the air guiding support pipe is made of stainless steel.

[0019] The utility model has the following beneficial effects:

[0020] 1. For the tooling for impregnating wind turbine blades of the utility model, by inserting the support pipe into the inside of the blade, starting the circulating air pump to inflate the support pipe, and then introducing the gas into the inside of the sealed airbag and the support airbag, the inflated support airbag supports the blade, and at the same time, the inflated sealed airbag seals the end of the blade, preventing the impregnating liquid from entering the inside of the blade when the second hydraulic cylinder moves the blade into the impregnation tank and effectively protecting the blade cavity space.

[0021] 2. For the tooling for impregnating wind turbine blades of the utility model, starting the driving motor to drive the second gear to rotate, making the first gear drive the stirring shaft to rotate, and then the stirring blades stir the impregnating liquid to prevent the impregnating liquid from precipitating. By squeezing the base with the first hydraulic cylinder, the stability of the support frame is increased. Description of the Drawings

[0022] The drawings here are incorporated into the specification and form a part of this specification, and are used together with the specification to explain the principle of the utility model.

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model 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, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

[0024] Figure 1 It is a schematic structural diagram of the utility model;

[0025] Figure 2 It is a partial enlarged schematic diagram of the sealed support mechanism of the utility model.

[0026] In the figure: A is the blade; 1 is the base; 2 is the impregnation tank; 3 is the lifting mechanism; 4 is the connecting plate; 5 is the sealing and supporting mechanism; 6 is the stirring structure; 7 is the supporting structure; 31 is the second hydraulic cylinder; 32 is the fixing frame; 33 is the mounting frame; 51 is the circulating air pump; 52 is the air guiding and supporting pipe; 53 is the sealing airbag; 54 is the supporting airbag; 61 is the stirring shaft; 62 is the stirring blade; 63 is the first gear; 64 is the second gear; 65 is the first driving motor; 71 is the supporting frame; 72 is the fixing component; 721 is the fixing plate; 722 is the first hydraulic cylinder. Detailed implementation mode

[0027] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation modes described in the following exemplary embodiments do not represent all implementation modes consistent with the present invention. On the contrary, they are only examples of devices consistent with some aspects of the present invention detailed in the appended claims.

[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the drawings and embodiments.

[0029] Embodiment 1

[0030] Please refer to Figures 1 to 2 , a tool for impregnating a wind turbine blade provided by an embodiment of the present invention. The tool includes a base 1, an impregnation tank 2 for containing impregnating liquid is arranged on the upper part of the base 1, a lifting mechanism 3 is fixedly installed directly above the impregnation tank 2, a horizontal connecting plate 4 is fixedly arranged at the bottom of the lifting mechanism 3, and a sealing and supporting structure 5 for fixing and sealing the blade A is arranged on the connecting plate 4.

[0031] Among them, in order to achieve the goal of sealing and supporting the cavity of the blade A during impregnation, the sealing and supporting structure 5 adopted in the embodiment of the present invention includes a circulating air pump 51 arranged on the connecting plate 4. A gas guiding and supporting pipe 52 is connected to the circulating air pump 51. The gas guiding and supporting pipe 52 extends into the inside of the blade A from the opening end of the blade A, and a sealing airbag 53 and a supporting airbag 54 communicated with the gas guiding and supporting pipe 52 are arranged on the gas guiding and supporting pipe 52, and the supporting airbags 54 are equidistantly distributed along the length direction of the blade A. When impregnation starts, the gas guiding and supporting pipe 52 is inserted into the inside of the blade A, the circulating air pump 51 is turned on to inflate the gas guiding and supporting pipe 52, and the gas is introduced into the inside of the sealing airbag 53 and the supporting airbag 54 through the gas guiding and supporting pipe 52. The supporting airbag 54 supports the blade A, and the sealing airbag 53 seals the end of the blade A; when impregnation is completed, the circulating air pump 51 is turned on to extract the gas inside the sealing airbag 53 and the supporting airbag 54, which is convenient for blade replacement.

[0032] In addition, when the blade is impregnated, in order to achieve the purpose of uniform impregnating liquid, the tooling adopted in Embodiment 1 of the present utility model further includes a stirring structure 6, which is used to stir the impregnating liquid in the impregnating tank 2. The stirring structure 6 includes a stirring shaft 61, stirring blades 62, a first gear 63, a second gear 64 and a first driving motor 65. The base 1 is of a shell structure, the first gear 63, the second gear 64 and the first driving motor 65 are arranged inside the base 1, one end of the stirring shaft 61 is rotatably connected to the base 1, and a first gear 63 is fixedly arranged on the circumferential surface of the stirring shaft 61. The first gear 63 is in meshing transmission with the second gear 64, and the second gear 64 is fixedly connected to the output shaft of the first driving motor 65. The other end of the stirring shaft 61 extends into the impregnating tank 2, and stirring blades 62 are fixedly connected to the stirring shaft 61 at the end extending into the impregnating tank 2. When the impregnation starts, the first driving motor 65 is turned on to drive the second gear 64 to rotate, so that the first gear 63 drives the stirring shaft 61 to rotate, and the stirring blades 62 stir the impregnating liquid to prevent the impregnating liquid from precipitating.

[0033] For the stability of the impregnation process, the tooling of the embodiment of the present utility model further includes a supporting structure 7. The supporting mechanism 7 includes an L-shaped support frame 71. The vertical section of the support frame 71 is arranged on the base 1 and on one side of the impregnating tank 2, and the horizontal section of the support frame 71 is located above the impregnating tank 2. The lifting mechanism 3 is fixed on the horizontal section of the support frame 71.

[0034] The supporting structure 7 further includes a fixing component 72 for fixing the support frame 71. The fixing component 72 includes a fixing plate 721 and a vertically arranged first hydraulic cylinder 722. One end of the fixing plate 721 is fixedly connected to the vertical section of the support frame 71, and the other end is fixedly connected to the cylinder body of the first hydraulic cylinder 722. The piston rod of the first hydraulic cylinder 722 contacts the upper surface of the base 1.

[0035] Specifically, the lifting mechanism 3 of the embodiment of the present utility model includes a vertically arranged second hydraulic cylinder 31. The cylinder body of the second hydraulic cylinder 31 is fixedly connected to the horizontal section of the support frame 71 through a fixing frame 32, and the bottom of the piston rod of the second hydraulic cylinder 31 is fixedly connected to the connecting plate 4 through a mounting frame 33. During impregnation, the second hydraulic cylinder 31 is turned on to control the sealing and supporting structure 5 to descend and ascend.

[0036] The working process of the tooling for impregnating the wind turbine blade of the present utility model is as follows:

[0037] At the beginning of impregnation, the air guiding support tube 52 is inserted into the interior of blade A, and the circulating air pump 51 is turned on to inflate the air guiding support tube 52. The gas is introduced into the interiors of the sealing airbag 53 and the supporting airbag 54 through the air guiding support tube 52. The supporting airbag 54 supports blade A, and the sealing airbag 53 seals the end of blade A. At the same time, the first hydraulic cylinder 722 presses on the base 1.

[0038] Turn on the first driving motor 65 to drive the second gear 64 to rotate, so that the first gear 63 drives the stirring shaft 61 to rotate, and the stirring blades 62 stir the impregnating solution to prevent the impregnating solution from precipitating.

[0039] Turn on the second hydraulic cylinder 31 to control the sealing and supporting structure 5 to descend, and control blade A to be impregnated.

[0040] After impregnation is completed, turn on the second hydraulic cylinder 31 to control the sealing and supporting structure 5 to rise, and blade A rises accordingly. Blade A is left to dry for a certain period of time.

[0041] Turn on the circulating air pump 51 to extract the gas inside the sealing airbag 53 and the supporting airbag 54, and replace blade A.

[0042] Embodiment 2

[0043] The difference between this embodiment and Embodiment 1 is only that the support structure 7 is preferably rotatably connected.

[0044] The support mechanism 7 includes an L-shaped support frame 71. The vertical section of the support frame 71 is arranged on the base 1 and on one side of the impregnation tank 2. The horizontal section of the support frame 71 is located above the impregnation tank 2. The lifting mechanism 3 is fixed on the horizontal section of the support frame 71.

[0045] The support further includes a rotating assembly (not shown in the figure) for rotating the support frame 71. The rotating assembly includes a third gear, a fourth gear and a second driving motor;

[0046] Among them, the vertical section of the support frame 71 is rotatably connected to the base 1. The third gear is fixedly arranged on the circumference of the vertical section of the support frame 71. The second driving motor is arranged on the base 1 and on one side of the vertical section of the support frame 71. The fourth gear is fixedly arranged on the output shaft of the second driving motor, and the fourth gear meshes with the third gear for transmission.

[0047] When impregnation starts, turn on the second driving motor to drive the fourth gear to rotate, so that the third gear drives the support frame 71 to rotate. Insert the air guiding support tube 52 into the interior of blade A, turn on the circulating air pump 51 to inflate the air guiding support tube 52. The gas is introduced into the interiors of the sealing airbag 53 and the supporting airbag 54 through the air guiding support tube 52. The supporting airbag 54 supports blade A, and the sealing airbag 53 seals the end of blade A. Then, carry out the impregnation work according to the remaining steps of Embodiment 1.

[0048] After the impregnation is completed and the blade A stands still for a period of time, the second drive motor is started to drive the fourth gear to rotate, so that the third gear drives the support frame 71 to rotate, and the blade A is removed from the impregnation tank 2. The circulating air pump 51 is started to extract the gas inside the sealing airbag 53 and the support airbag 54, and the blade A is removed for replacement.

[0049] The above are only specific embodiments of the present invention, enabling those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention.

[0050] It should be understood that the present invention is not limited to the above-described content and can be variously modified and changed without departing from its scope. The scope of the present invention is only limited by the appended claims.

Claims

1. A tool for impregnation of wind turbine blades, the tool is mainly used for processing blades (A) with a cavity structure, and one end of the blade (A) is open and the other end is closed, characterized in that: The invention comprises a base (1), wherein an impregnation box (2) is arranged on the upper part of the base (1), and the impregnation liquid is contained in the impregnation box (2); a lifting mechanism (3) is fixedly installed directly above the impregnation box (2); a horizontal connecting plate (4) is arranged at the bottom of the lifting mechanism (3), and a sealing support structure (5) for fixing and sealing the blade (A) is arranged on the connecting plate (4).

2. The wind turbine blade impregnation tool according to claim 1, characterized in that: The sealing support structure (5) comprises a circulating air pump (51) and an air guide support tube (52) arranged on the connecting plate (4); one end of the air guide support tube (52) is connected to the circulating air pump (51), and the other end extends from the opening end of the blade (A) into the interior thereof; a sealing air bag (53) in communication with the air guide support tube (52) is arranged on the air guide support tube (52) and located on one side of the opening end of the blade (A); and a supporting air bag (54) in communication with the air guide support tube (52) is arranged on the air guide support tube (52) and located in the cavity of the blade (A); and the supporting air bags (54) are equidistantly distributed along the length direction of the blade (A).

3. The wind turbine blade impregnation tool according to claim 1, characterized in that: The tooling also includes a stirring structure (6), and the stirring structure (6) is used to stir the impregnation liquid in the impregnation box (2).

4. The wind turbine blade impregnation tool according to claim 3, characterized in that: The stirring structure (6) comprises a stirring shaft (61), a stirring blade (62), a first gear (63), a second gear (64) and a first driving motor (65); The base (1) is a shell structure, the first gear (63), the second gear (64) and the first drive motor (65) are arranged in the base (1), one end of the stirring shaft (61) is rotatably connected to the base (1), and the first gear (63) is fixedly arranged on the circumferential surface of the stirring shaft (61), the first gear (63) and the second gear (64) are meshed and transmitted, the second gear (64) is fixedly connected to the output shaft of the first drive motor (65), the other end of the stirring shaft (61) extends into the impregnation box (2), and the stirring shaft (61) extending into one end of the impregnation box (2) is fixedly connected with a stirring blade (62).

5. The wind turbine blade impregnation tool according to claim 1, characterized in that: The tooling also includes a support structure (7), the support structure (7) includes an L-shaped support frame (71), the vertical section of the support frame (71) is arranged on the base (1) and is located on one side of the impregnation box (2), the horizontal section of the support frame (71) is located above the impregnation box (2), and the lifting mechanism (3) is fixed on the horizontal section of the support frame (71).

6. The tooling for impregnation of wind turbine blades according to claim 5, characterized in that: The support structure (7) also includes a fixing assembly (72) for fixing the support frame (71), and the fixing assembly (72) includes a fixing plate (721) and a vertically arranged first hydraulic cylinder (722), one end of the fixing plate (721) is fixedly connected to the vertical section of the support frame (71), and the other end is fixedly connected to the cylinder body of the first hydraulic cylinder (722), and the piston rod of the first hydraulic cylinder (722) is in contact with the upper surface of the base (1).

7. The wind turbine blade impregnation tool according to claim 6, characterized in that: The lifting mechanism (3) comprises a second hydraulic cylinder (31) arranged vertically, the cylinder body of the second hydraulic cylinder (31) being fixedly connected to the horizontal section of the support frame (71) via a fixing frame (32), and the bottom of the piston rod of the second hydraulic cylinder (31) being fixedly connected to the connecting plate (4) via a mounting frame (33).

8. The tooling for impregnation of wind turbine blades according to claim 4, characterized in that: The bearing at the connection between the stirring shaft (61) and the impregnation box (2) is a sealed bearing.

9. The tooling for impregnation of wind turbine blades according to claim 5, characterized in that: The support structure (7) further comprises a rotating assembly for rotating the support frame (71), wherein the rotating assembly comprises a third gear, a fourth gear and a second driving motor; The vertical section of the support frame (71) is rotatably connected to the base (1); the third gear is fixedly arranged on the circumference of the vertical section of the support frame (71); the second drive motor is arranged on the base (1) and is located on one side of the vertical section of the support frame (71); the fourth gear is fixedly arranged on the output shaft of the second drive motor, and the fourth gear is meshed with the third gear for transmission.

10. The wind turbine blade impregnation tool according to claim 2, characterized in that: The gas guide support tube (52) is made of stainless steel.

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