CN212287365U - Aerogenerator blade anchor clamps and aerogenerator blade test system - Google Patents

Abstract

The utility model provides a aerogenerator blade anchor clamps and aerogenerator blade test system relates to aerogenerator blade technical field. The wind driven generator blade clamp comprises two brackets which are oppositely arranged; a clamping module for clamping the blade is arranged between the two brackets; the support comprises a plurality of support body units which are detachably connected; each frame body unit has a corresponding preset length; wherein the sum of the lengths of all the frame units constituting the stent is equal to the total length of the stent. The blade clamp of the wind driven generator has the advantage of strong universality.

Description

Aerogenerator blade anchor clamps and aerogenerator blade test system

Technical Field

The utility model relates to a aerogenerator blade technical field especially relates to aerogenerator blade anchor clamps and aerogenerator blade test system.

Background

The blade belongs to one of the main components of the wind driven generator, and directly influences the conversion rate of wind energy and the stability of the operation of the whole machine. In order to guarantee the design quality of the blade, the reliability of the blade must be verified.

Before reliability verification is carried out, the blade needs to be clamped and fixed through a blade clamp. However, the existing blade clamp has the problem of poor universality, wherein the blade clamp with the corresponding length needs to be customized for blades with different length specifications, and the manufacturing cost is very high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's defect, provide aerogenerator blade anchor clamps and aerogenerator blade test system for there is the poor problem of commonality in the blade anchor clamps of solution prior art.

In order to solve the above problem, the utility model provides a: the wind driven generator blade clamp comprises two brackets which are oppositely arranged;

a clamping module for clamping the blade is arranged between the two brackets;

the support comprises a plurality of support body units which are detachably connected;

each frame body unit has a corresponding preset length;

wherein the sum of the lengths of all the frame units constituting the stent is equal to the total length of the stent.

As a further improvement of the technical scheme, the adjacent frame bodies are fixed through splicing pieces.

As a further improvement of the technical scheme, the splicing pieces are fixedly connected with the frame body unit through fastening bolts.

As a further improvement of the technical scheme, two lifting lugs are respectively arranged at two ends of the length of the support.

As a further improvement of the technical scheme, the lifting lug is detachably connected with the support.

As a further improvement of the technical scheme, the two brackets are connected through a connecting rod.

As a further improvement of the technical scheme, the frame body unit is provided with a sleeve.

As a further improvement of the technical scheme, the sleeves are arranged at the two ends of the rack body unit in the length direction.

As a further improvement of the above technical solution, the clamping module comprises a first clamping member and a second clamping member;

an installation space is formed between the first clamping piece and the second clamping piece and used for installing the blade, wherein the shape of the installation space corresponds to that of the blade.

The utility model discloses still provide: aerogenerator blade test system includes aerogenerator blade anchor clamps as above-mentioned.

The utility model has the advantages that: the utility model provides a wind driven generator blade anchor clamps, including two relative supports that set up, be provided with the centre gripping module who is used for the centre gripping blade between two supports.

Before the clamping operation of the blade is carried out, the user can determine the length of the support according to the length of the blade to be measured, so that a plurality of support body units with proper lengths can be selected for assembling and splicing, and the support with the required length can be obtained so as to install the blade.

Through the combination between the frame body units, the bracket with corresponding length can be obtained, so that the blade with corresponding length can be installed, the bracket does not need to be customized according to the length of the blade, and the manufacturing cost of the clamp is effectively reduced.

The blade clamp of the wind driven generator has the advantage of strong universality and can be suitable for blades with different lengths.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 shows a schematic view of a fixture for a blade of a wind turbine consisting of a frame consisting of a plurality of frame units;

FIG. 2 shows a schematic view of a rack made up of a plurality of rack units;

FIG. 3 illustrates a schematic view of a fixture for a wind turbine blade comprising a support frame constructed from a single frame unit;

FIG. 4 shows a schematic view of a shelving unit;

FIG. 5 shows a partial enlarged view of the section A in FIG. 2;

FIG. 6 shows a schematic view of a splice;

FIG. 7 shows a front view of a frame unit;

figure 8 shows a schematic view of a lifting lug;

FIG. 9 shows a partial enlarged view in the direction B of FIG. 1;

FIG. 10 shows a schematic view of a bracket with a first clamp mounted thereto;

FIG. 11 shows a schematic view of a parallel connection of two aerogenerator blade clamps;

FIG. 12 shows a schematic view of a parallel connected wind turbine blade clamp with exciters mounted on top;

figure 13 shows a schematic view of a parallel connected wind turbine blade holder with exciters mounted on the sides.

Description of the main element symbols:

1-a scaffold; 2-a clamping module; 3-a frame unit; 4-a body portion; 5-side plate; 6-hanging a plate; 7-upper panel; 8-lower panel; 9-a middle plate; 10-a first mounting hole; 11-a second mounting hole; 12-a third mounting hole; 13-a fourth mounting hole; 14-a fifth mounting hole; 15-a cannula; 16-a splice; 17-a fastening bolt; 18-a plug hole; 19-a lifting lug; 20-ear; 21-a connecting part; 22-a connecting rod; 23-adjusting the nut; 24-a first clamp; 25-a second clamp; 26-a baffle; 27-a vibration exciter; 100-wind turbine blade clamp.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Example one

Referring to fig. 1, in the present embodiment, a blade clamp of a wind turbine is provided, which includes two brackets 1 disposed oppositely.

A clamping module 2 for clamping the blade is arranged between the two brackets 1. Wherein, in use, a user may select a suitable clamping module 2 according to the size and shape of the blade.

As shown in fig. 2, the rack 1 may include a plurality of rack units 3, and the rack units 3 are detachably connected to each other. In the rack 1, the rack units 3 included therein are connected in sequence and located on the same straight line (the center of gravity of the rack unit 3). It is noted that only two magazine units 3 are shown in fig. 2, and the number of magazine units 3 required for the rack 1 may be set as desired during the actual assembly process.

Each frame unit 3 has a corresponding preset length. Wherein, for the rack 1, the sum of the lengths of all the rack units 3 contained in the rack is equal to the total length of the rack 1.

In this embodiment, the magazine unit 3 may include a plurality of sizes, wherein the magazine units 3 of different sizes have different lengths, for example, the magazine units 3 having the length sizes of 10cm, 20cm, 30cm, 50cm, and 100cm may be provided as required.

The user can determine the length of the bracket 1 according to the blade of the blade, and generally, the length of the bracket 1 needs to be larger than that of the blade.

For example, when the blade has a length of 140cm, the user may select one rack unit 3 having a length of 50cm and one rack unit 3 having a length of 100cm, and thus splice one rack 1 having a length of 150 cm; when the length of the blade is 210cm, the user can select two shelf units 3 with the length of 100cm and one shelf unit 3 with the length of 20cm, and thus splice a shelf 1 with the length of 220 cm.

The above is merely an example, and in the actual use process, the user can reasonably select the specification, the number and the like of the frame units 3 to match the blades with the corresponding lengths.

As shown in fig. 3, if the length of a single frame unit 3 is sufficient for installing the blade to be tested, the bracket 1 only needs to be composed of one frame unit 3. For example, when the length of the blade is 90cm, the user only needs to select one rack unit 3 having a length of 100cm as the rack 1.

In the present embodiment, the frame units 3 of different specifications have the same structure although the lengths are different. The structure of the magazine unit 3 will be explained below.

As shown in fig. 4, the holder unit 3 includes a main body 4, two side plates 5, and a hanger plate 6, the two side plates 5 being disposed at both sides of the main body 4 in the longitudinal direction, and the hanger plate 6 being disposed at the top of the main body 4 (the orientation shown in fig. 4).

In this embodiment, the main body portion 4 may include an upper panel 7, a lower panel 8, and an intermediate plate 9, the upper panel 7 being disposed parallel to the lower panel 8, the intermediate plate 9 being disposed between and perpendicular to the upper panel 7 and the lower panel 8. In order to reduce the manufacturing cost, H-shaped steel may be used for the main body 4.

It is noted that the spacing between the upper and lower panels 7, 8 is the same for different sizes of frame units 3, i.e. the height of different length sizes of frame units 3 is the same.

In the present embodiment, the side plates 5 and the hanger plates 6 may use steel plates. The side plates 5 and the hanger plates 6 may be fixed to the main body 4 by welding or the like.

In other embodiments, the main body 4, the side plates 5 and the hanger plate 6 may be integrally formed, or only the main body 4 and the side plates 5 may be integrally formed.

In view of assembly requirements, the upper panel 7 of the main body 4 may be provided with a plurality of first mounting holes 10, the lower panel 8 of the main body 4 may be provided with a plurality of second mounting holes 11, and the middle panel 9 of the main body 4 may be provided with a plurality of third mounting holes 12.

Further, the side plate 5 may be provided with a plurality of fourth mounting holes 13, and the hanger plate 6 may be provided with a plurality of fifth mounting holes 14.

The use of the first, second, third, fourth and fifth mounting holes 10, 11, 12, 13 and 14 will be described later.

In this embodiment, the body portion 4 of the magazine unit 3 may be provided with a sleeve 15. Further, sleeves 15 may be provided at both ends in the longitudinal direction of the body portion 4.

The sleeve 15 is located between the upper and lower panels 7, 8, and the sleeve 15 is parallel to the intermediate panel 9. The interior of the sleeve 15 is provided with a hollow inner cavity, wherein the upper panel 7 and the lower panel 8 are both provided with through holes which are right opposite to the inner cavity of the sleeve 15.

In this embodiment, in order to facilitate the reuse of the frame units 3, the frame units 3 are spliced in a detachable connection manner. Wherein, after completing the test of a blade, the frame unit 3 can be disassembled for subsequent assembling and splicing.

Referring to fig. 5, adjacent frame units 3 may be fixed by a splicing member 16. Wherein, the splicing piece 16 can be fixedly connected with the frame body unit 3 through a fastening bolt 17.

It is to be noted that only two magazine units 3 are shown in fig. 1. In actual use, the rack 1 may comprise a larger number of rack units 3, wherein adjacent rack units 3 may be connected by splices 16.

As shown in fig. 6, in the present embodiment, the splicing element 16 can be provided in a rectangular parallelepiped shape, wherein both ends of the splicing element 16 can be provided with inserting holes 18.

In this embodiment, the splicing between two adjacent frame units 3 can be realized by the matching of the splicing member 16, the fastening bolt 17 and the sleeve 15. Wherein, the splicing process between two adjacent frame units 3 is roughly as follows:

adjusting the position between the two frame units 3 to enable adjacent side plates 5 of the two frame units to be mutually attached, and simultaneously enabling upper panels 7 and lower panels 8 of the two frame units to be respectively kept aligned; adjusting the position of the splicing element 16 so that the two inserting holes 18 of the splicing element 16 are respectively opposite to the sleeves 15 on the two frame units 3; the fastening bolt 17 sequentially penetrates through the corresponding plug hole 18, the upper panel 7, the sleeve 15 and the lower panel 8 from top to bottom, wherein the bottom of the fastening bolt 17 extends out of the lower panel 8; and (4) screwing a fastening nut at the bottom of the fastening bolt 17, and completing the fixing of the fastening bolt 17 and the splicing element 16 by screwing the fastening nut. Wherein the required number of fastening bolts 17 is twice the number of splices 16.

In other embodiments, an internal thread matching the fastening bolt 17 may be provided in the sleeve 15, wherein the fastening bolt 17 can be fixed without using a fastening nut by the fastening bolt 17 matching the internal thread.

As shown in fig. 6, in the present embodiment, the center distance between two splicing holes 18 on the splicing element 16 can be set to p; as shown in fig. 7, in the present embodiment, for each frame unit 3, the distance between the central axis of the sleeve 15 and the outer side surface of the side plate 5 closest to itself may be q, where p is 2 q. By adopting the arrangement, the universality of the splicing pieces 16 can be effectively improved, and the splicing pieces 16 can be assembled and spliced between the frame body units 3 with any two length specifications.

After the frame units 3 are spliced, the support 1 can be obtained.

Referring to fig. 1, 2 and 3, to facilitate the static test, a lifting lug 19 may be provided at each end along the length of the bracket 1.

In this embodiment, the lifting lug 19 and the bracket 1 can be detachably connected.

As shown in fig. 8, the ear 19 includes an ear portion 20 and a connecting portion 21, and the connecting portion 21 may be provided in a plate shape, wherein the ear portion 20 may be fixed to the connecting portion 21 by welding or the like.

The connecting portion 21 may be provided with a connecting hole corresponding to the fourth mounting hole 13 of the side plate 5. During assembly, the connecting portions 21 are placed against the side plates 5 such that the connecting holes and the corresponding fourth mounting holes 13 are aligned with each other, and then the lifting lugs 19 are fixed to the bracket 1 by means of bolts or the like.

The wind driven generator blade clamp comprises two supports 1, wherein lifting lugs 19 are arranged at two ends of each support 1.

In the embodiment, the two brackets 1 of the wind turbine blade clamp are arranged oppositely and connected through the connecting rod 22.

From the above, the support 1 may be formed by splicing a plurality of support units 3, and at the same time, the two ends of each support unit 3 are provided with the sleeves 15, wherein the sleeves 15 located in the middle of the support 1 need to be used for installing the fastening bolts 17, and the sleeves 15 located at the two ends of the support 1 may be used for installing the connecting rods 22.

Referring to fig. 1, the upper bracket 1 and the lower bracket 1 are arranged in a mirror image, and a corresponding number of connecting rods 22 are respectively inserted into the sleeves 15 at the two ends of the upper bracket 1 and the lower bracket 1, so that the two brackets 1 can be aligned, and at the same time, the position of the two brackets 1 can be changed only in the axial direction under the limitation of the connecting rods 22. Wherein the diameter of the connecting rod 22 is smaller than the inner diameter of the casing 15.

In the present embodiment, the connecting rod 22 may be a threaded rod, wherein the connecting rod 22 may be provided with an adjusting nut 23, and the clamping force of the clamping module 2 on the blade may be adjusted by the adjusting nut 23.

Referring to fig. 9, after the connection rods 22 are mounted on the two brackets 1, the adjustment nuts 23 may be screwed on both ends of the connection rods 22, wherein the connection rods 22 may be prevented from being loosened by mounting the adjustment nuts 23, and in addition, the user may adjust the maximum distance between the two brackets 1 by changing the positions of the adjustment nuts 23.

After the installation of the blade, the tighter the adjusting nut 23 is screwed on the connecting rod 22 means that the clamping force of the clamping module 2 between the two brackets 1 on the blade is greater.

As shown in fig. 1 and 3, in the present embodiment, the clamping module 2 may include a first clamping member 24 and a second clamping member 25, the first clamping member 24 may be fixed to the upper bracket 1, and the second clamping member 25 may be fixed to the lower bracket 1.

The first clamping piece 24 and the second clamping piece 25 can be fixedly connected with the lower panel 8 of the corresponding bracket 1 through a bolt connection mode and the like. Wherein, the second mounting hole 11 provided on the lower panel 8 can mount a bolt for fixing the first clamping piece 24 or the second clamping piece 25.

In this embodiment, the first clamping member 24 and the second clamping member 25 can both be made of wood.

When the static test is carried out, if the load is too large, relative movement between the clamping module 2 and the bracket 1 can be caused, and even the clamping module 2 is broken, so that the clamping module 2 needs to be reinforced.

As shown in fig. 10, the first clamping member 24 is taken as an example. Wherein, for the convenience of observation, the support 1 in the figure only includes one support unit 3.

An L-shaped baffle 26 may be provided on the bracket 1. In this embodiment, the two ends of the first clamping member 24 may be respectively provided with a baffle 26, and the baffle 26 abuts against the end of the first clamping member 24 to achieve the reinforcing effect on the first clamping member 24. Wherein the baffle plate 26 can be fixed on the lower panel 8 by means of bolt connection.

The second clamp 25 may be reinforced in a manner similar to the first clamp 24, that is, one stopper 26 may be provided at each end of the second clamp 25, and the stopper 26 may abut against an end of the second clamp 25.

After the assembly of the clamping module 2 is completed, an installation space for installing the blade is formed between the first clamping member 24 and the second clamping member 25, wherein the installation space has a shape corresponding to the blade.

Before installing the blade, the distance between the two brackets 1 can be adjusted, so that the distance between the first clamping piece 24 and the second clamping piece 25 is increased, and the blade can be conveniently placed; after the blade is placed in the installation space, the adjusting nuts 23 at both ends of the connecting rod 22 can be screwed, so that the blade is clamped by the clamping module 2.

The blade clamp of the wind driven generator provided by the embodiment has the advantages of strong universality, flexible structure, convenience in disassembly and assembly and the like, can adapt to blades with different lengths, and can effectively reduce the manufacturing cost of the clamp.

In the embodiment, a wind driven generator blade testing system is also provided, and comprises the wind driven generator blade clamp.

When a static test in the horizontal direction (parallel to the length direction of the bracket 1) is performed, a steel wire rope can be installed in the hanging hole of each lifting lug 19, wherein a pulling force parallel to the length direction of the bracket 1 can be applied to the steel wire rope through a pulling machine, so that the blade clamp of the wind driven generator is subjected to the pulling force parallel to the length direction of the bracket 1.

When a static test in the vertical direction (parallel to the height direction of the brackets 1) is performed, a steel wire rope can be installed on the fifth installation holes 14 on the hanging plates 6 of the two brackets 1, wherein a pulling force parallel to the height direction of the brackets 1 is applied to the steel wire rope through a pulling force machine, so that the wind driven generator blade clamp is subjected to the pulling force parallel to the height direction of the brackets 1.

Example two

The reliability verification of the blade comprises a static test and a fatigue test, wherein the static test can be performed by a tensile machine, and the fatigue test needs to be completed by using the vibration exciter 27.

The thickness of the single wind turbine blade clamp is small, and the vibration exciter 27 is difficult to install. In this embodiment, a plurality of wind turbine blade holders may be connected in parallel in order to facilitate installation of the vibration exciters 27.

Take the parallel connection of two aerogenerator blade clamps 100 as an example.

As shown in fig. 11, two wind turbine blade clamps 100 of the same size and composition are placed side by side, wherein a positioning rod can be inserted into the aligned third mounting holes 12 of the two intermediate plates 9, thereby positioning the two. The positioning rod is not shown in fig. 11.

The locating rod can adopt a threaded rod, and locating nuts can be installed at two ends of the locating rod. The positioning rod can be prevented from being loosened by arranging the positioning nut, and in addition, the maximum distance between the two parallel wind driven generator blade clamps 100 can be changed by adjusting the position of the positioning nut.

After the parallel connection of the wind driven generator blade clamps is completed, the assembled whole has larger thickness, so that the vibration exciter 27 can be installed.

As shown in fig. 12, the exciter 27 is mounted on the top of the wind turbine blade holder.

The exciter 27 may be fixed to the upper panel 7 of the stand 1 by means of bolts, wherein the first mounting holes 10 of the upper panel 7 may be used for mounting bolts for fixing the exciter 27.

As shown in fig. 13, the exciter 27 is mounted on the side of the wind turbine blade holder.

The exciter 27 may be fixed to the side plate 5 at the end of the stand 1 by means of bolting. Before the exciter 27 is installed, the lifting lug 19 on the side plate 5 needs to be detached, wherein the fourth installation hole 13 on the side plate 5 can be used for installing a bolt for fixing the exciter 27.

Through carrying out parallel connection with a plurality of aerogenerator blade anchor clamps, not only conveniently install vibration exciter 27, simultaneously, can also carry out fatigue test to a plurality of blades simultaneously.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (10)

1. The wind driven generator blade clamp is characterized by comprising two brackets which are oppositely arranged;

a clamping module for clamping the blade is arranged between the two brackets;

the support comprises a plurality of support body units which are detachably connected;

each frame body unit has a corresponding preset length;

wherein the sum of the lengths of all the frame units constituting the stent is equal to the total length of the stent.

2. The wind turbine blade clamp according to claim 1, wherein adjacent frame units are fixed by a splice.

3. The wind turbine blade clamp according to claim 2, wherein the splices are fixedly connected to the frame unit by fastening bolts.

4. The aerogenerator blade holder as set forth in claim 1, wherein one lifting lug is provided along each end of the length of the bracket.

5. The aerogenerator blade holder as defined in claim 4, wherein the lifting lug is detachably connected to the bracket.

6. Aerogenerator blade holder according to one of the claims 1 to 5, characterized in that the two brackets are connected by a connecting rod.

7. Wind turbine blade holder according to any of claims 1-5, wherein a bushing is provided on the frame unit.

8. The aerogenerator blade clamp of claim 7 wherein the bushings are provided at both ends along the length of the frame unit.

9. The aerogenerator blade clamp of any of the claims 1-5, wherein the clamping module comprises a first clamp and a second clamp;

an installation space is formed between the first clamping piece and the second clamping piece and used for installing the blade, wherein the shape of the installation space corresponds to that of the blade.

10. Aerogenerator blade test system, characterized in that it comprises an aerogenerator blade clamp according to any of the claims 1 to 9.

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