CN217572631U

CN217572631U - Asymmetric test fixture of blade root bolt

Info

Publication number: CN217572631U
Application number: CN202221919606.1U
Authority: CN
Inventors: 许经纬; 张书山; 尹衍军; 谢浩俊; 丁华勇
Original assignee: Changzhou Wmc Detection Technology Co ltd
Current assignee: Changzhou Wmc Detection Technology Co ltd
Priority date: 2022-07-21
Filing date: 2022-07-21
Publication date: 2022-10-14
Anticipated expiration: 2032-07-21

Abstract

The utility model relates to a fatigue test technical field especially relates to an asymmetric test fixture of blade root bolt, include: the first hinge structure, the second hinge structure and the fixing device; the fixing device includes: a clamping plate and a fixing plate; the clamping plate and the fixing plate are respectively used for correspondingly fixing two ends of the blade root to be tested; the first hinge structure is fixedly connected with the fixing plate; the second hinge structure is fixedly connected with the clamping plate; the rotation directions of the first hinge structure and the second hinge structure are vertical; the first hinge structure and the second hinge structure are correspondingly and vertically arranged; the second hinge structure includes: the second connecting plate, the second fixed seat and the second rotating shaft; the second fixed seat is fixedly connected with the clamping plate; the second connecting plate is connected with external equipment; the second rotating shaft is used for rotating the second connecting plate and the second fixed seat. Through the utility model discloses, solved and installed inconvenient problem to the test blade root, and all have certain adaptability to the blade root of various shapes, saved the human cost, the operation is met singly during the installation, is convenient for follow-up test.

Description

Asymmetric test fixture of blade root bolt

Technical Field

The utility model relates to a fatigue test technical field especially relates to an asymmetric test fixture of blade root bolt.

Background

Along with the increasing approach of the exhaustion schedules of traditional fossil energy sources such as coal, petroleum, natural gas and the like, the development and the utilization of wind energy are more and more emphasized by people, and the wind energy, the nuclear energy and the solar energy are combined into three clean energy sources. At present, wind turbine blades of wind turbines capture wind energy by means of special aerodynamic appearance structures and convert the wind energy into mechanical energy, and blade roots are connected with rotating shafts to bear huge centrifugal force brought by the blades, so that the blades are core components in wind turbine equipment and play an extremely important role in wind turbines.

The blade root is connected with the rotating shaft through the bolt, and because the environment where the wind power generation is located is severe, the borne wind resistance and the centrifugal force of the blade are huge, the fixation of the blade root and the bolt becomes the key of the service life of the wind power generation.

The information disclosed in this background section is only for enhancement of understanding of the general background of the disclosure and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art that is known to a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model provides an asymmetric test fixture of blade root bolt can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

the utility model provides an asymmetric test fixture of blade root bolt, includes: the first hinge structure, the second hinge structure and the fixing device;

the fixing device includes: a clamping plate and a fixing plate;

the clamping plate and the fixing plate are respectively used for correspondingly fixing two ends of the blade root to be tested;

the first hinge structure is fixedly connected with the fixing plate;

the second hinge structure is fixedly connected with the clamping plate;

the first hinge structure is perpendicular to the second hinge structure in rotation direction.

Furthermore, the first hinge structure and the second hinge structure are vertically arranged correspondingly and fixedly connected with external equipment respectively.

Further, the second hinge structure includes: the second connecting plate, the second fixed seat and the second rotating shaft;

the second fixed seat is fixedly connected with the clamping plate;

the second connecting plate is connected with the external equipment;

and the second rotating shaft is used for rotating the second connecting plate and the second fixed seat.

Furthermore, the second fixing base is provided with an adjusting hole, the end part of the clamping plate is provided with an adjusting channel, the adjusting hole and the adjusting channel are fixed through a connecting piece, and the adjusting channel can move in a sliding manner through the connecting piece to adjust the distance between the clamping plates.

Furthermore, a lock hole is formed in the outer side of the clamping plate, a through hole is formed in one end of the test blade root, and the clamping plate and the test blade root are fixed by penetrating through the lock hole and the through hole through a connecting piece.

Furthermore, the fixing device further comprises a locking bolt which penetrates through the fixing plate and enters the testing blade root to fix the testing blade root.

Further, still include levelling device, set up between second connecting plate and second fixing base.

Further, the leveling device is in a plurality.

Through the technical scheme of the utility model, can realize following technological effect:

the problem of inconvenient installation to the test blade root has effectively been solved, and all have certain adaptability to the blade root of various shapes, has saved the human cost, and the operation is connect the list during the installation, is convenient for follow-up the test.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of a blade root bolt asymmetry test fixture;

FIG. 2 is a schematic view of the second hinge structure and the mounting of the securing device;

FIG. 3 is a schematic view of the installation of the first hinge structure and the fixing means;

FIG. 4 is an enlarged view of a portion of FIG. 1 at A;

FIG. 5 is a partially exploded view of the first hinge structure and the securing device;

FIG. 6 is a partially exploded view of the second hinge structure and the securing device;

reference numerals are as follows: 1. a first hinge structure; 11. a first connecting plate; 12. a first fixed seat; 13. a first rotating shaft; 2. a second hinge structure; 21. a second connecting plate; 22. a second fixed seat; 221. an adjustment hole; 23. a second rotating shaft; 3. a splint; 31. adjusting the way; 32. a lock hole; 4. a fixing plate; 41. fixing the bolt; 42. locking the bolt; 5. testing the blade root; 51. a through hole; 6. a leveling device; 61. a leveling nut; 62. leveling bolts.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 6, a tool for testing asymmetry of a blade root bolt includes: a first hinge structure 1, a second hinge structure 2 and a fixing device; the fixing device includes: a clamping plate 3 and a fixing plate 4; the clamping plate 3 and the fixing plate 4 are respectively and correspondingly fixed at two ends of the blade root 5 to be tested; the first hinge structure 1 is fixedly connected with a fixed plate 4; the second hinge structure 2 is fixedly connected with the clamping plate 3; the first hinge structure 1 is perpendicular to the direction of rotation of the second hinge structure 2.

Through the technical scheme of the utility model, effectively solved to test 5 inconvenient problems of installation of blade root, and all have certain adaptability to the blade root of various shapes, saved the human cost, the operation connects singly during the installation, and the follow-up of being convenient for tests.

In the installation, fix the one end of test blade root 5 on fixed plate 4 earlier, fix fixed plate 4 on first hinge structure 1 again, because the direction of rotation of first hinge structure 1 and second hinge structure 2 is inconsistent, so two hinge structures have formed a universal device to the fixed of test blade root 5, can adjust test blade root 5 because of the focus skew that the shape produced, make the other end of test blade root 5 arrange in between splint 3 through the adjustment, it is fixed to lock splint 3 again.

In order to make the direction of the installed test blade root 5 vertical, as shown in fig. 1, the first hinge structure 1 and the second hinge structure 2 are correspondingly vertically arranged and fixedly connected with external equipment respectively. Because first hinge structure 1 and second hinge structure 2 are fixed on external equipment, so the position is static relatively, just adjusts the fixed to the test blade through the rotating part, and vertical setting is favorable to keeping the unanimity of atress direction at the test blade root 5 after the installation when follow-up fatigue test, avoids because the skew that manual installation produced, influences follow-up test.

As a preference of the above embodiment, the second hinge structure 2 includes: a second connecting plate 21, a second fixed seat 22 and a second rotating shaft 23; the second fixed seat 22 is fixedly connected with the clamping plate 3; the second connecting plate 21 is connected with external equipment; the second rotating shaft 23 is used for rotating the second connecting plate 21 and the second fixed seat 22. As shown in fig. 2 and 6, specifically, the clamping plate 3 is fixed by the second fixing seat 22, the external device is fixed by the second connecting plate 21, the second fixing seat 22 and the second connecting plate 21 can rotate relatively by the second rotating shaft 23, the first fixing seat 12 and the fixing plate 4 are fixed by the fixing bolt 41, the external device is fixedly connected by the first connecting plate 11, and the first connecting plate 11 and the first fixing shaft rotate by the first rotating shaft 13.

On the basis of the above embodiment, as shown in fig. 2 and 6, the second fixing seat 22 is provided with an adjusting hole 221, the end of the clamping plate 3 is provided with an adjusting channel 31, the adjusting hole 221 and the adjusting channel 31 are fixed by a connecting member, and the adjusting channel 31 and the connecting member can move in a sliding manner to adjust the distance between the clamping plates 3. The connecting piece passes through the adjusting holes 221 and the adjusting channels 31, the position of the clamping plate 3 on the second fixing seat 22 can be adjusted by entering different adjusting holes 221, and the distance between the clamping plate 3 and the connecting piece can be adjusted along the adjusting channels 31 and the guiding direction of the connecting piece, so that the tested blade roots 5 with various thicknesses can be met.

For better fixing of the test blade root 5, the outer side of the clamping plate 3 is provided with a locking hole 32, one end of the test blade root 5 is provided with a through hole 51, and the clamping plate 3 and the test blade root 5 are fixed by a connecting piece penetrating through the locking hole 32 and the through hole 51. Certain processing has been done to test blade root 5 to this embodiment, if the extrusion that simply utilizes splint 3 is fixed, in the follow-up test, the both ends of testing blade root 5 all can bear very strong pulling force, carries out the processing of through-hole 51 earlier to test blade root 5, more is favorable to splint 3 to the fixed of testing blade root 5, guarantees the accuracy of test data.

Preferably, the fixing device further comprises a locking bolt 42 penetrating the fixing plate 4 and entering the test blade root 5 for fixing the test blade root 5. As shown in fig. 3 and 5, since the subsequent test mainly tests under what conditions the test blade root 5 and the locking bolt 42 are disengaged, the fixing means at this end of the test blade root 5 also fixes the test blade root 5 and the fixing plate 4 in such a way that the locking bolt 42 enters the test blade root 5.

In the implementation process of the above optimization mode, the leveling device 6 is further included and is arranged between the second connecting plate 21 and the second fixing seat 22. Referring to fig. 4, in order to further ensure that the hinge structures are vertical and the test blade root 5 is tested in the vertical direction, due to the universal adjusting function of the two hinge structures, the test blade root 5 after installation sometimes does not reach the vertical direction required by the test, so the leveling device 6 can finely adjust one end of the test blade root 5, the leveling device 6 is provided with leveling nuts 61 and leveling bolts 62, and the adjustment in the direction of the second fixing base 22 is realized by screwing the bolts.

The leveling devices 6 are plural for the same purpose as the above-described embodiment. The plurality of leveling devices 6 can better adjust the steering angle of the second fixed seat 22, and the test requirements are met.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an asymmetric test fixture of blade root bolt which characterized in that includes: the first hinge structure, the second hinge structure and the fixing device;

the fixing device includes: a clamping plate and a fixing plate;

the clamping plate and the fixing plate are respectively and correspondingly fixed at two ends of the blade root to be tested;

the first hinge structure is fixedly connected with the fixing plate;

the second hinge structure is fixedly connected with the clamping plate;

2. The asymmetric test fixture of blade root bolt of claim 1, characterized in that the first hinge structure and the second hinge structure are vertically arranged and fixedly connected with external equipment respectively.

3. The asymmetric test fixture of blade root bolt of claim 2, characterized in that, the second hinge structure includes: the second connecting plate, the second fixed seat and the second rotating shaft;

the second fixed seat is fixedly connected with the clamping plate;

the second connecting plate is connected with the external equipment;

4. The asymmetric test fixture of blade root bolt of claim 3, characterized in that the second fixing base is provided with an adjusting hole, the end of the clamping plate is provided with an adjusting channel, the adjusting hole and the adjusting channel are fixed by a connecting piece, and the adjusting channel and the connecting piece can move in a sliding manner to adjust the distance between the clamping plates.

5. The asymmetric test fixture of blade root bolt of claim 4, characterized in that, the splint outside is equipped with the lockhole, test blade root one end is equipped with the through-hole, pass through lockhole and through-hole through the connecting piece fixed splint and test blade root.

6. The asymmetric test fixture of blade root bolt of claim 5, characterized in that, fixing device still includes locking bolt, runs through the fixed plate and gets into the test blade root, plays the fixed action to the test blade root.

7. The asymmetric test fixture of blade root bolt of claim 3, further comprising a leveling device arranged between the second connecting plate and the second fixing seat.

8. The asymmetric testing fixture of blade root bolt of claim 7, characterized in that, the leveling device is a plurality of.