Wind turbine blade vortex generator installation aid and method of use

Abstract

The application discloses a kind of wind power blade vortex generator installation auxiliary frock, it includes horizontal fixed frame, plumb fixed frame and positioning structure, positioning structure includes adjusting rod and positioning soft board, and positioning hole matched with the bottom plate of vortex generator is provided in the middle part of positioning soft board.The use method of wind power blade vortex generator installation auxiliary frock, it includes the following steps: S1: blade posture adjustment;S2: mark positioning line;S3: mark bonding area;S4: blade surface decontamination, polishing;S5: glue pasting.Advantages: this frock is suitable for the installation positioning of vortex generator with arbitrary line positioning line, and by replacing positioning soft board, it can be adapted to vortex generator of different models and installation period, simple operation, accurate positioning, strong versatility.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vortex generator installation, in particular to a wind turbine blade vortex generator installation auxiliary tool and a using method thereof. BACKGROUND

[0002] The vortex generator (hereinafter referred to as VG) is a small aspect ratio delta wing installed vertically on the surface of the blade at a certain installation angle, which mainly includes a bottom plate and two wing plates fixed on the bottom plate; a strong wing tip vortex is generated in the oncoming airflow, and after the mixing of this high-energy wing tip vortex and the low-energy boundary layer flow downstream, the energy is transmitted to the boundary layer, so that the boundary layer flow field in the adverse pressure gradient can continue to adhere to the surface of the body without separation, thereby enabling the blade to continue to maintain lift.

[0003] Before installing the VG, the blade is generally adjusted to a plumb state; then, a positioning line is marked on the surface of the blade by using a string; then, the VG bonding area is marked at equal intervals on the positioning line and polished to be rough; finally, the VG is pasted on the bonding area. However, since the positioning line is an irregular curve with an included angle a (a is a variable) between the blade rotating shaft, the problem that the symmetry axis of the VG is no longer perpendicular to the rotating shaft of the blade exists during pasting, which seriously affects the use effect; in addition, high-altitude operation is required, which makes the accurate positioning and installation of the VG very difficult. SUMMARY

[0004] The first object of the present application is to provide a wind turbine blade vortex generator installation auxiliary tool.

[0005] The second object of the present application is to provide a using method of the wind turbine blade vortex generator installation auxiliary tool.

[0006] The first object of the present application is implemented by the following technical scheme: a wind turbine blade vortex generator installation auxiliary tool, which comprises a horizontal fixing frame, a plumb line fixing frame and a positioning structure, the plumb line fixing frame is vertically fixed at the middle of the bottom end of the horizontal fixing frame, and a plurality of positioning structures are slidably arranged on the plumb line fixing frame; the positioning structure comprises an adjusting rod and a positioning soft plate, the adjusting rod is slidably connected with the plumb line fixing frame, and the adjusting rod is arranged in parallel with the horizontal fixing frame, and the adjusting rod vertically slides relative to the plumb line fixing frame; the positioning soft plate is fixed at one end of the adjusting rod, a positioning hole matched with the bottom plate of the vortex generator is arranged at the middle of the positioning soft plate, and an axis is marked at the symmetry axis position of the positioning soft plate.

[0007] Further, a sliding block is arranged on the plumb line fixing frame and slides along the adjusting rod.

[0008] Further, a transverse long hole is formed in the middle of the adjusting rod, and the sliding block is slidingly arranged in the transverse long hole.

[0009] Further, the sliding block comprises a sliding block body, a limiting block and a bolt, the sliding block body is slidingly arranged along the adjusting rod, a longitudinal long hole is formed in the plumb line fixing frame, the limiting block is fixed on the sliding block body and slidingly arranged in the longitudinal long hole, the bottom end of the bolt is screwed with the limiting block, and the head of the bolt is movably abutted with the plumb line fixing frame.

[0010] Further, a scale line is arranged on the plumb line fixing frame.

[0011] Further, a bubble level is arranged on the surface of the horizontal fixing frame.

[0012] Further, a hinge plate is arranged between the positioning soft plate and the adjusting rod, one end of the hinge plate is hingedly connected with the adjusting rod, and the other end of the hinge plate is hingedly connected with a fixing piece for fixing the positioning soft plate.

[0013] Further, the positioning soft plate and the fixing piece are detachably connected.

[0014] Further, a clamping groove is arranged at the outer end of the fixing piece, and a clamping piece matched with the clamping groove is arranged on the positioning soft plate.

[0015] The second object of the application is implemented by a method for using a wind power blade vortex generator installation auxiliary tool, which comprises the following steps:

[0016] S1: blade posture adjustment

[0017] Adjust the blade in which the vortex generator needs to be installed to a plumb state;

[0018] S2: marking a positioning line

[0019] Lay a string on the surface of the blade along the positioning line and fix the string on the surface of the blade with adhesive tape;

[0020] S3: marking an adhesive area

[0021] First, arrange the auxiliary tool on the surface of the blade, align the horizontal fixing frame with the symmetric axis of the starting position of the positioning line or the last adhesive area, and adjust the horizontal fixing frame to be in a horizontal state;

[0022] Then, pull the adjusting rod, so that the axis line marked on the positioning soft plate intersects with the positioning line;

[0023] Finally, attach the positioning soft plate to the surface of the blade, and mark the adhesive area on the blade with a pen along the edge of the positioning hole;

[0024] S4: blade surface decontamination and polishing

[0025] The blade surface of the bonding area is wiped with a decontaminant and a cleaning cloth to remove the dirt and attachments of the bonding area, and then the wiped bonding area is polished to be rough by a polishing machine;

[0026] S5: gluing and pasting

[0027] The glue or adhesive is applied to the bottom of the vortex generator base plate, and then it is pasted to the polished bonding area.

[0028] The advantages of the present application are that the horizontal plane parallel to the blade root circle of the blade can be found through the horizontal fixing frame, the plumb plane can be found through the plumb fixing frame fixed at the bottom of the horizontal fixing frame, and the positioning soft plate is fixed on the adjusting rod perpendicular to the plumb fixing frame. During installation, only the horizontal fixing frame needs to be adjusted to the horizontal position, and then the vortex generator bonding area can be ensured to be perpendicular to the plumb fixing frame through the positioning soft plate, that is, the symmetry axis of the vortex generator is perpendicular to the rotating shaft of the blade. Then, only the intersection of the adjusting rod and the positioning line needs to be adjusted to achieve rapid and accurate positioning. This tool is suitable for the installation and positioning of vortex generators with any positioning line, and can be adapted to vortex generators of different models and installation periods by replacing the positioning soft plate. It is simple to operate, accurate in positioning, and has strong universality. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0030] Figure 2 It is a schematic diagram of the local connection of the adjusting rod and the plumb fixing frame.

[0031] Figure 3 It is a schematic diagram of the local connection of the positioning soft plate and the fixing part.

[0032] Figure 4 It is a reference drawing for use.

[0033] Figure 5 It is a partial enlarged view of Figure 4

[0034] Label name

[0035] 1-horizontal fixing frame, 2-plumb fixing frame, 21-longitudinal long hole, 3-positioning structure, 31-adjusting rod, 310-fixing part, 311-clamping groove, 312-clamping part, 32-positioning soft plate, 33-positioning hole, 34-sliding block, 35-transverse long hole, 36-sliding block body, 37-limiting block, 38-bolt, 39-hinge plate, 4-scale line, 5-level bubble, 6-bonding area, 7-positioning line, 8-axis. DETAILED DESCRIPTION ​

[0036] In the description of this invention, it should be noted that terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, terms such as "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] Example 1: As Figures 1 to 5 As shown, the auxiliary tooling for installing the eddy current generator of the wind turbine blade includes a horizontal fixing frame 1, a plumb bob fixing frame 2, and a positioning structure 3. A bubble level 5 is set on the surface of the horizontal fixing frame 1. By setting the bubble level 5, it is possible to determine whether the horizontal fixing frame 1 is in a horizontal position, making it easier and faster to adjust the horizontal fixing frame 1.

[0038] A plumb bob bracket 2 is vertically fixed at the bottom center of the horizontal fixed frame 1. Several positioning structures 3 are slidably arranged on the plumb bob bracket 2. In this embodiment, a total of 3 positioning structures 3 are provided. By setting the positioning structures 3 on the plumb bob bracket 2, which is perpendicular to the horizontal fixed frame 1, it can be ensured that the positioning structures 3 are perpendicular to the plumb bob bracket 2, thereby ensuring that the axis of the installed eddy current generator is perpendicular to the rotation axis of the fan blades. The positioning structure 3 includes an adjusting rod 31 and a positioning flexible plate 32. The adjusting rod 31 is arranged parallel to the horizontal fixed frame 1 and is slidably connected to the plumb bob bracket 2. The adjusting rod 31 slides perpendicularly to the plumb bob bracket 2. A positioning flexible plate 32 is fixed at one end of the adjusting rod 31. A positioning hole 33 matching the bottom plate of the eddy current generator is provided in the middle of the positioning flexible plate 32. An axis 8 is marked at the symmetrical axis position of the positioning flexible plate 32. By sliding the adjusting rod 31 left and right on the plumb bob bracket 2, the distance between the positioning flexible plate 32 and the plumb bob bracket 2 can be adjusted so that it corresponds to the positioning line 7. After adjusting the positioning plate 32 to the position where the axis 8 and the positioning line intersect, attach the positioning plate 32 to the blade, and mark the bonding area 6 for fixing the eddy current generator by drawing a line on the blade along the edge of the positioning hole 33.

[0039] A hinge plate 39 is arranged between the positioning soft plate 32 and the adjusting rod 31, one end of the hinge plate 39 is hinged with the adjusting rod 31, and the other end of the hinge plate 39 is hinged with a fixing piece 310 for fixing the positioning soft plate 32. The positioning soft plate 32 is rotatably connected between the hinge plate 39 and the adjusting rod 31, so that the positioning soft plate 32 can be matched with the blade curved surface, and the bonding area 6 can be easily drawn. The positioning soft plate 32 is detachably connected with the fixing piece 310, and the positioning soft plate 32 can be replaced according to the specific size of the vortex generator, thereby improving the universality of the auxiliary tool. Specifically, a clamping groove 311 is arranged at the outer end of the fixing piece 310, and a clamping piece 312 matched with the clamping groove 311 is arranged on the positioning soft plate 32; the detachable connection between the positioning soft plate 32 and the fixing piece 310 is realized through the cooperation of the clamping piece 312 and the clamping groove 311.

[0040] A sliding block 34 is arranged on the plumb fixed frame 2 and slides along the adjusting rod 31. A transverse long hole 35 is formed in the middle of the adjusting rod 31, and the sliding block 34 is slidingly arranged in the transverse long hole 35. The adjusting rod 31 is slidingly connected with the sliding block 34, and the distance between the positioning soft plate 32 and the plumb fixed frame 2 can be adjusted to adapt to the bending change of the positioning line 7. Specifically, the sliding block 34 includes a sliding block body 36, a limiting block 37 and a bolt 38, the sliding block body 36 is slidingly arranged in the transverse long hole 35, a longitudinal long hole 21 is formed in the plumb fixed frame 2, the limiting block 37 is fixed on the sliding block body 36 and slides in the longitudinal long hole 21, the bottom end of the bolt 38 is screwed with the limiting block 37, and the head of the bolt 38 is movably abutted with the plumb fixed frame 2. Moreover, by sliding the limiting block 37 along the longitudinal long hole 21, the distance between the two adjacent adjusting rods 31 can be adjusted, that is, the user can adjust the distance between the positioning structures 3 according to the installation distance between the adjacent vortex generators, and after adjustment, the bolt 38 is tightened until the head thereof abuts with the plumb fixed frame 2, so that the sliding block 34 is fixed with the plumb fixed frame 2. A scale line 4 is arranged on the plumb fixed frame 2, and the distance between the adjacent positioning structures 3 can be easily judged by arranging the scale line 4.

[0041] Embodiment 2: The use method of the wind power blade vortex generator installation auxiliary tool described in embodiment 1, which comprises the following steps:

[0042] S1: Blade posture adjustment

[0043] Adjust the blade which needs to be installed with vortex generators to a plumb state;

[0044] S2: Marking the positioning line

[0045] Lay a string on the surface of the blade along the positioning line 7 and fix the string on the surface of the blade with adhesive tape;

[0046] S3: Marking the bonding area

[0047] First, the auxiliary tool is placed on the blade surface, the horizontal fixing frame 1 is aligned with the initial position of the positioning line 7 or the symmetry axis of the last bonding area 6, and the horizontal fixing frame 1 is adjusted to be in a horizontal state;

[0048] Then, the adjusting rod 31 is pulled, so that the axis marked on the positioning soft plate intersects with the positioning line 7;

[0049] Finally, the positioning soft plate 32 is attached to the blade surface, and a line is marked on the blade along the edge of the positioning hole 33, so as to mark the bonding area 6;

[0050] S4: cleaning and polishing of the blade surface

[0051] The blade surface of the bonding area 6 is wiped with a cleaning agent and a cleaning cloth to remove dirt and attachments of the bonding area 6, and then the polished bonding area 6 is polished to be rough by using a polishing machine;

[0052] S5: gluing and pasting

[0053] Glue or adhesive is applied to the bottom of the vortex generator bottom plate, and then it is pasted on the polished bonding area 6.

[0054] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A wind turbine blade vortex generator installation aid characterised in that, The utility model provides a kind of vortex generator positioning device, including horizontal fixed frame, plumb fixed frame and positioning structure, the plumb fixed frame is vertically fixed in the bottom end middle part of the horizontal fixed frame, and several positioning structures are slidably arranged on the plumb fixed frame;The positioning structure includes adjusting rod and positioning soft board, the adjusting rod is arranged in parallel with the horizontal fixed frame, the adjusting rod is slidably connected with the plumb fixed frame, and the adjusting rod is vertically slid relative to the plumb fixed frame;The adjusting rod is fixed with the positioning soft board at one end, the positioning hole matched with the bottom plate of vortex generator is arranged in the middle of the positioning soft board, and the axis is marked on the symmetry axis of the positioning soft board;Sliding block is arranged on the plumb fixed frame along the adjusting rod;Longitudinal slot is opened in the middle of the adjusting rod, and the sliding block is slidably arranged in the longitudinal slot;The sliding block includes sliding block main body, limiting block and bolt, the sliding block main body slides along the adjusting rod, longitudinal slot is opened in the plumb fixed frame, the limiting block slidably arranged in the longitudinal slot is fixed on the sliding block main body, the bottom end of the bolt is screw-connected with the limiting block, and the head of the bolt is movably abutted with the plumb fixed frame;Hinge plate is arranged between the positioning soft board and the adjusting rod, one end of the hinge plate is hinged with the adjusting rod, and the other end of the hinge plate is hinged with fixing member for fixing the positioning soft board.

2. A wind turbine blade vortex generator installation aid according to claim 1, characterised in that, Scale line is arranged on the plumb fixed frame.

3. Wind turbine blade vortex generator installation aid according to claim 1 or 2, characterized in that Level bubble is arranged on the surface of the horizontal fixed frame.

4. The wind turbine blade vortex generator installation aid tooling of claim 1, wherein, The positioning soft board is detachably connected with the fixing member.

5. A wind turbine blade vortex generator installation aid according to claim 4, characterised in that, Card slot is arranged on the outer end of the fixing member, and clamping member matched with the card slot is arranged on the positioning soft board.

6. A method of using the wind turbine blade vortex generator installation aid tooling of any of claims 1 to 5, characterized in that, The utility model includes the following steps: S1: blade posture adjustment Adjust the blade needing to install vortex generator to plumb state; S2: mark positioning line Lay line rope on the blade surface along the positioning line and fix the line rope on the blade surface with adhesive tape; S3: mark bonding area First, arrange auxiliary tool on the blade surface, align the horizontal fixed frame with the symmetry axis of the starting position of positioning line or last bonding area, and adjust the horizontal fixed frame to horizontal state; Then, pull the adjusting rod, so that the axis marked on the positioning soft board intersects with the positioning line; Finally, adhere the positioning soft board to the blade surface, and mark the bonding area on the blade by drawing line with pen along the edge of positioning hole; S4: blade surface decontamination and polishing Wipe the blade surface of bonding area with decontaminant and cleaning cloth to remove dirt and attachments of bonding area, and then polish the wiped bonding area to be rough with polishing machine; S5: glue coating and pasting Coat glue on the bottom of vortex generator bottom plate, and then paste it on the polished bonding area.

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