Calibrating device for installing wind wheel of wind driven generator

Abstract

The utility model discloses a calibration device for installing a wind wheel of a wind driven generator, which relates to the technical field of workpiece assembly and comprises a calibration scale, the calibration scale is installed at the root of a blade and is parallel to the end face of the root of the blade, and the calibration scale is provided with a positioning mark and an installation piece. The installation part is installed at the joint of the hub and the root of the blade, a positioning line is preset on the hub, the installation part carries out positioning along the positioning line, the laser instrument is installed on the installation part, and when laser emitted by the laser instrument coincides with a positioning mark on the calibration ruler, calibration work is completed. The calibration condition is judged by replacing manual observation of the alignment effect of the calibration marked lines, the more accurate calibration effect is achieved, meanwhile, more obvious calibration reminding is achieved, and therefore the calibration efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of workpiece assembly, and more specifically, to a calibration device for installing a wind turbine rotor. Background Art

[0002] With the continuous maturity of wind turbine technology, the high-performance requirements for high-end wind turbine generators are getting higher and higher, and the requirements for the wind energy capture ability of wind turbine generators are also continuously increasing. In a wind turbine generator, the pitch control system is directly related to the wind energy capture ability of the unit, and the initial zero calibration of the wind turbine rotor at the initial installation stage of the unit is directly related to the control accuracy of the control system. Only by ensuring that the zero calibration mark line of the wind turbine rotor is aligned with the zero calibration mark line of the wind turbine hub body can the power generation of the wind turbine be guaranteed.

[0003] For the existing external zero calibration of the wind turbine rotor of a wind turbine generator, generally, a zero calibration mark line is made outside the wind turbine rotor, and correspondingly, a zero calibration mark line is also made outside the hub of the wind turbine rotor. The overall zero calibration of the wind turbine rotor is judged by manually observing the alignment of the two zero calibration mark lines. However, since the two zero calibration lines are not in the same plane, the overall zero calibration takes a long time and the zero calibration effect is poor.

[0004] In summary, how to provide a calibration device that can improve the installation and calibration efficiency of the generator wind turbine rotor is an urgent problem to be solved by those skilled in the art at present. Content of the Utility Model

[0005] In view of this, the purpose of the utility model is to provide a calibration device for installing a wind turbine rotor, which can improve the calibration efficiency during the installation of the generator wind turbine rotor and improve the calibration accuracy.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A calibration device for installing a wind turbine rotor, comprising:

[0008] A calibration scale, the calibration scale is installed at the root of the blade and is parallel to the end face of the blade root, and positioning marks are provided on the calibration scale;

[0009] A mounting member, the mounting member is installed at the connection between the hub and the blade root, a positioning line is preset on the hub, and the mounting member is positioned along the positioning line;

[0010] A laser instrument, the laser instrument is installed on the mounting member;

[0011] When the laser emitted by the laser instrument coincides with the positioning marks on the calibration scale, the calibration work is completed.

[0012] Further, the mounting member of the present utility model adopts a plate-like structure, and a positioning member is provided on the mounting member for mounting and positioning the laser instrument.

[0013] Further, the positioning member of the present utility model is a positioning ruler, and the laser instrument is mounted and positioned through the positioning ruler.

[0014] Further, the positioning member of the present utility model is a positioning protrusion mounted on the mounting member, and a positioning groove cooperating with the positioning protrusion is provided on the laser instrument;

[0015] When the positioning protrusion is inserted into the positioning groove, the positioning of the laser instrument is achieved.

[0016] Further, both the positioning protrusion and the positioning groove adopt a cross-shaped structure.

[0017] Further, a strong magnetic block is provided on the laser instrument, and the laser instrument is detachably mounted on the mounting member through the strong magnetic block.

[0018] Further, the positioning protrusion adopts a conical protrusion, and the positioning groove adopts a conical groove cooperating with the positioning protrusion.

[0019] Further, the calibration scale and the mounting member are respectively detachably mounted on the blade root and the hub.

[0020] Further, strong magnetic blocks are provided on both the calibration scale and the mounting member, and the calibration scale and the mounting member are respectively fixed on the blade root and the hub through the strong magnetic blocks.

[0021] Further, a linear hole is provided on the mounting member;

[0022] When the linear hole coincides with the positioning line, the positioning of the mounting member is achieved.

[0023] Further, the positioning line is a linear groove, and a linear protrusion collinear with the linear hole is provided on the mounting member.

[0024] The calibration device for installing the wind turbine rotor provided by the utility model installs the calibration scale at the root of the blade and parallel to the end face of the blade root to complete the positioning and installation of the calibration scale. When the hub is produced, positioning lines are preset on the hub and are perpendicular to the end face where the hub is connected to the blade, and this setting is completed when the hub leaves the factory. The mounting part is installed at the connection between the hub and the blade, and the mounting part is installed and positioned through the positioning line. The laser instrument is installed on the mounting part, and positioning marks are provided on the calibration scale. After the above installation steps are completed, when calibrating, the laser instrument is turned on, and by continuously adjusting the position of the blade until the center of the cross-positioning laser emitted by the laser instrument shoots at the positioning mark of the zero calibration scale, the calibration work is completed. Instead of manually observing the alignment effect of the calibration marking to judge the calibration situation, it has a more accurate calibration effect and a more obvious calibration reminder, so as to improve the calibration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] 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, the drawings in the following description are only the embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to the provided drawings.

[0026] Figure 1 FIG. is a schematic structural diagram of the installed blade and hub provided by the present utility model;

[0027] Figure 2 FIG. is a schematic structural diagram of a partial view of the root of the hub and the blade provided by the present utility model;

[0028] Figure 3 Provided by the present utility model Figure 3 FIG. is an enlarged structural diagram of part A in;

[0029] Figure 4 FIG. is a schematic structural diagram of the calibration device provided by the present utility model;

[0030] Figure 5 FIG. is a schematic structural diagram of the bottom view of the mounting part and the laser instrument provided by the present utility model;

[0031] Figure 6 FIG. is a schematic structural diagram of the separated mounting part and the laser instrument provided by the present utility model.

[0032] Figures 1 - 6 Among them, the reference numerals include:

[0033] 1. Calibration scale; 2. Mounting part; 201. Linear hole; 202. Positioning part; 3. Laser instrument; 4. Blade root; 5. Hub; 6. Positioning line. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the scope of protection of the present utility model.

[0035] The core of the present utility model is to provide a calibration device for installing a wind turbine rotor, which can improve the calibration efficiency and accuracy when installing the generator rotor.

[0036] Please refer to Figures 1 - 6 , a calibration device for installing a wind turbine rotor, including a calibration scale 1, a mounting member 2 and a laser instrument 3. The calibration scale 1 is installed at the root 4 of the blade and is parallel to the end face of the root 4 of the blade. The calibration scale 1 is provided with positioning marks. The mounting member 2 is installed at the connection between the hub 5 and the blade. A positioning line 6 is preset on the hub 5. The mounting member 2 is positioned along the positioning line 6. The laser instrument 3 is installed on the mounting member 2. When the laser emitted by the laser instrument 3 coincides with the positioning marks on the calibration scale 1, the calibration work is completed.

[0037] It should be noted that the model of the laser instrument 3 is not limited in the embodiments of the present utility model. In some embodiments, a one-line laser, a cross-line laser or a ring laser can be used, etc.

[0038] Optionally, in some embodiments, the positioning marks on the calibration scale 1 can be one-shaped marks or cross-shaped marks.

[0039] In addition, in order to further improve the calibration accuracy, in some embodiments, a limit mark can be set on the mounting member 2, that is, the overlapping length of the mounting member 2 and the fixing surface of the hub 5 is limited, so as to limit the position of the laser instrument 3, which is beneficial to further improving the calibration accuracy.

[0040] Optionally, in some embodiments, the laser instrument 3 can be installed on the mounting member 2 in a detachable manner, so as to facilitate the replacement of different models of laser instruments 3 and be applicable to more usage scenarios. For example, a bolt fixing method can be used to realize the detachable installation of the laser instrument 3 on the mounting member 2, or a snap fixing method can be used to realize the detachable installation of the laser instrument 3 on the mounting member 2, or other methods that can realize detachable fixing.

[0041] Optionally, in some embodiments, the mounting member 2 can be detachably mounted on the wheel hub 5 to facilitate the reuse of the mounting member 2 and reduce the production cost of the enterprise. For example, a bolt fixing method can be adopted to detachably mount the mounting member 2 on the wheel hub 5, or a snap fixing method can be adopted to detachably mount the mounting member 2 on the wheel hub 5, or other methods that can achieve detachable fixing.

[0042] Optionally, in some embodiments, the positioning line 6 can be a mark made by a worker on the wheel hub 5 after measurement before the calibration work, or the positioning line 6 is integrally formed with the wheel hub 5 directly during the production process of the wheel hub 5.

[0043] Optionally, in some embodiments, the calibration scale 1 can be mounted on the blade root 4 by a worker after measurement before the calibration work, and removed after the calibration work is completed for easy reuse.

[0044] During use, the calibration scale 1 is mounted on the root of the blade and parallel to the end face of the blade root 4 to complete the positioning and installation of the calibration scale 1. When the wheel hub 5 is produced, a positioning line 6 is preset on the wheel hub 5, and the positioning line 6 is perpendicular to the end face where the wheel hub 5 and the blade are connected. The setting is completed when the wheel hub 5 leaves the factory. The mounting member 2 is installed at the connection between the wheel hub 5 and the blade, and the mounting member 2 is installed and positioned through the positioning line 6. The laser instrument 3 is installed on the mounting member 2, and a positioning mark is provided on the calibration scale 1. After the above installation steps are completed, when calibrating, the laser instrument 3 is turned on, and by continuously adjusting the position of the blade until the center of the cross positioning laser emitted by the laser instrument 3 hits the positioning mark on the zero calibration scale, the calibration work is completed. Instead of manually observing the alignment effect of the calibration marking to judge the calibration situation, it has a more accurate calibration effect and a more obvious calibration reminder, so as to improve the calibration efficiency.

[0045] Please refer to Figures 3 - 6 , in order to further improve the accuracy of calibration, in some embodiments, the mounting member 2 adopts a plate-like structure, and a positioning member 202 is provided on the mounting member 2 for the installation and positioning of the laser instrument 3. That is to say, the laser instrument 3 is positioned during installation through the positioning member 202, thereby improving the installation accuracy of the laser instrument 3 and being beneficial to improving the accuracy of the entire calibration work.

[0046] It should be noted that the specific structure of the positioning member 202 is not limited in the embodiments of the present invention.

[0047] Optionally, in some embodiments, the positioning member 202 can adopt a positioning ruler, that is, a ruler with scales, and the installation and positioning of the laser instrument 3 are achieved by comparing the laser instrument 3 with the positioning ruler.

[0048] In some other embodiments, the positioning member 202 is a positioning protrusion installed on the mounting member 2, and the laser instrument 3 is provided with a positioning groove that cooperates with the positioning protrusion. When the positioning protrusion is inserted into the positioning groove, the positioning of the laser instrument 3 is achieved. That is to say, through the cooperation between the positioning protrusion and the positioning groove, the installation and positioning operation of the laser instrument 3 can be quickly realized, and only a positioning groove needs to be opened on the laser instrument 3 to be used.

[0049] It should be noted that the specific shape of the positioning groove is not limited in the embodiments of the present invention.

[0050] Optionally, in some embodiments, the positioning protrusion may adopt a cylindrical structure, and a cylindrical structure with a polygonal cross-section is adopted, and the positioning groove adopts a cylindrical structure with a polygonal cross-section that cooperates with the positioning protrusion.

[0051] In some other embodiments, the positioning protrusion may adopt a structure with a special-shaped cross-section, and the positioning groove adopts a structure with a special-shaped cross-section that cooperates with the positioning protrusion.

[0052] In some other embodiments, both the positioning protrusion and the positioning groove adopt a cross-shaped structure, and the cross-shaped structure can achieve the quick and effective positioning and installation of the laser instrument 3.

[0053] In order to facilitate the repeated use of the calibration scale 1 and the mounting member 2, in some embodiments, the calibration scale 1 and the mounting member 2 are respectively detachably installed on the blade root 4 and the hub 5, and both the calibration scale 1 and the mounting member 2 are provided with strong magnetic blocks. Through the strong magnetic blocks, the calibration scale 1 and the mounting member 2 are respectively fixed on the blade root 4 and the hub 5. That is to say, through the magnetic adsorption of the strong magnetic blocks, the calibration scale 1 and the mounting member 2 can be quickly installed in the corresponding positions, and at the same time, it is convenient to disassemble them to meet the purpose of repeated use, which is beneficial to reducing the production cost of the enterprise.

[0054] In some other embodiments, a suction cup can be used instead of the strong magnetic block, and the calibration scale 1 and the mounting member 2 can also be quickly installed in the corresponding positions, and at the same time, it is convenient to disassemble them.

[0055] In order to facilitate the quick replacement of the laser instrument 3, in some embodiments, the laser instrument 3 is provided with a strong magnetic block and is detachably installed on the mounting member 2 through the strong magnetic block. That is to say, under the magnetic action of the strong magnetic block, the laser instrument 3 can be effectively fixed on the mounting member 2 to achieve the quick replacement of the laser instrument 3.

[0056] In some other embodiments, a suction cup can be used instead of the strong magnetic block, and the calibration scale 1 and the mounting member 2 can also be quickly installed in the corresponding positions, and at the same time, it is convenient to disassemble them.

[0057] In order to further improve the positioning accuracy of the laser instrument 3, in some embodiments, the positioning protrusion is a conical protrusion, and the positioning groove is a conical groove that cooperates with the positioning protrusion. That is to say, through the conical structure, it is convenient for the laser instrument 3 to be quickly inserted into the positioning groove, and the bottom area of the positioning protrusion is larger than that of the positioning groove. Therefore, when the positioning groove cooperates with the positioning protrusion, there is a certain gap between the laser instrument 3 and the mounting member 2, and the gap is less than 2 mm. Under the action of the strong magnet block, there is an adsorption force on the laser instrument 3, so that the positioning groove is in close contact with the positioning protrusion, and the contact position maintains a tight fit effect, thus ensuring the most accurate positioning effect.

[0058] Please refer to Figures 3 - 6 , in order to facilitate the alignment and positioning between the mounting member 2 and the positioning line 6, in some embodiments, the mounting member 2 is provided with a linear hole. When the linear hole coincides with the positioning line 6, the positioning of the mounting member 2 is realized. That is to say, through the linear hole, the coincidence with the positioning line 6 can be quickly achieved and is conducive to observation, so as to realize the quick positioning and installation of the mounting member 2.

[0059] Optionally, in order to further improve the installation and positioning efficiency of the mounting member 2, in some embodiments, the positioning line 6 is a linear groove, and the mounting member 2 is provided with a linear protrusion collinear with the linear hole. That is to say, when installing the mounting member 2, only need to insert the linear protrusion into the current groove. On the one hand, the positioning of the mounting member 2 is realized, and at the same time, the installation fixing stability is also improved.

[0060] It should be noted that in the embodiments of the present invention, the linear groove of the positioning line 6 is integrally formed when the wheel hub 5 is produced.

[0061] That is to say, the key point of the embodiments of the present invention is: installing the calibration scale 1 at the root of the blade and parallel to the end face of the blade root 4 to complete the positioning and installation of the calibration scale 1. When the wheel hub 5 is produced, a positioning line 6 is preset on the wheel hub 5, and the positioning line 6 is perpendicular to the end face where the wheel hub 5 and the blade are connected, and the setting is completed when the wheel hub 5 leaves the factory. The mounting member 2 is installed at the connection between the wheel hub 5 and the blade, and the mounting member 2 is installed and positioned through the positioning line 6. The laser instrument 3 is installed on the mounting member 2, and the calibration scale 1 is provided with a positioning mark. After completing the above installation steps, when calibrating, turn on the laser instrument 3, and by continuously adjusting the position of the blade until the cross positioning laser center emitted by the laser instrument 3 shoots at the positioning mark of the zero calibration scale, the calibration work is completed. Instead of manually observing the alignment effect of the calibration marking to judge the calibration situation, it has a more accurate calibration effect and a more obvious calibration reminder, so as to improve the calibration efficiency.

[0062] In this specification, the various embodiments are described in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts among the various embodiments can be referred to each other.

[0063] The above has introduced in detail a calibration device for installing a wind turbine rotor provided by the present utility model. Specific examples are used herein to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and modifications can still be made to the present utility model, and these improvements and modifications also fall within the protection scope of the claims of the present utility model.

Claims

1. A calibration device for installing a wind turbine rotor, characterized in that, Including: A calibration scale (1), the calibration scale (1) is installed at the blade root (4) and is parallel to the end face of the blade root (4), and positioning marks are provided on the calibration scale (1); A mounting member (2), the mounting member (2) is installed at the connection between the hub (5) and the blade root (4), a positioning line (6) is preset on the hub (5), and the mounting member (2) is positioned along the positioning line (6); A laser instrument (3), the laser instrument (3) is installed on the mounting member (2); When the laser emitted by the laser instrument (3) coincides with the positioning mark on the calibration scale (1), the calibration work is completed.

2. The calibration device for installing a wind turbine rotor according to claim 1, characterized in that, The mounting member (2) adopts a plate-like structure, and a positioning member (202) is provided on the mounting member (2) and is used for the installation and positioning of the laser instrument (3).

3. The calibration device for installing the wind turbine rotor according to claim 2, wherein, The positioning member (202) is a positioning ruler, and the installation and positioning of the laser instrument (3) are realized through the positioning ruler.

4. A calibration device for installing a wind turbine blade, according to claim 2, wherein, The positioning member (202) is a positioning protrusion installed on the mounting member (2), and a positioning groove matching with the positioning protrusion is provided on the laser instrument (3); When the positioning protrusion is inserted into the positioning groove, the positioning of the laser instrument (3) is realized.

5. The calibration device for installing a wind turbine rotor according to claim 4, characterized in that, Both the positioning protrusion and the positioning groove adopt a cross-shaped structure.

6. The calibration device for installing a wind turbine rotor according to claim 5, characterized in that, The laser instrument (3) is provided with a strong magnetic block and is detachably installed on the mounting member (2) through the strong magnetic block.

7. A calibration device for installing a wind turbine rotor according to claim 6, characterized in that, The positioning protrusion adopts a conical protrusion, and the positioning groove adopts a conical groove matching with the positioning protrusion.

8. A calibration device for installing a wind turbine rotor according to claim 1, characterized in that The calibration scale (1) and the mounting member (2) are respectively detachably installed on the blade root (4) and the hub (5).

9. A calibration device for installing a wind turbine rotor according to claim 8, characterized in that, Both the calibration scale (1) and the mounting member (2) are provided with strong magnetic blocks, and the calibration scale (1) and the mounting member (2) are respectively fixed on the blade root (4) and the hub (5) through the strong magnetic blocks.

10. A calibration device for installing a wind turbine rotor according to any one of claims 1-9, characterized in that, The mounting member (2) is provided with a linear hole; When the linear hole coincides with the positioning line (6), the positioning of the mounting member (2) is realized.

11. A calibration device for installing a wind turbine rotor according to claim 10, characterized in that, The positioning line (6) is a linear groove, and a linear protrusion collinear with the linear hole is provided on the mounting member (2).

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