Blade damping assembly of wind driven generator

Abstract

The utility model relates to the technical field of wind power generation, in particular to a blade damping assembly of a wind driven generator, which comprises a connector, an installation assembly and an auxiliary assembly, the periphery of the connector is connected with the installation assembly in a sliding mode, the outer side of the installation assembly is connected with a blade assembly in a rotating mode, and one side of the connector is provided with the auxiliary assembly. A lubricating assembly is arranged on one side of the connector. The mounting assembly comprises a sliding seat, the two sides in the sliding seat are connected with a rotating shaft through bolts, the blade assembly comprises blades, the blades are rotationally connected with the sliding seat through the rotating shaft, the periphery of the rotating shaft is sleeved with a coil spring, and one end of the coil spring is connected with the rotating shaft through welding; through multiple and multidirectional damping mechanisms, under the condition that the mass of the damping assembly is reduced, the damping effect on the blades is guaranteed, and therefore the influence on the wind power generation effect is greatly reduced, and the using effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power generation, in particular to a blade vibration reduction component of a wind power generator. Background Art

[0002] A wind turbine is an electrical device that converts wind energy into mechanical work, which drives the rotor to rotate and ultimately outputs alternating current. A wind turbine is generally composed of components such as a wind wheel, a generator, a direction regulator, a tower, a speed limiting safety mechanism and an energy storage device. Blade damping refers to the mechanical components that perform vibration reduction operations on the blades.

[0003] At present, when using blade damping components, there is a lack of multi-directional and multiple damping mechanisms. Usually, a damping component is added to the outside of the blade. However, due to the increase in mass, the rotation speed of the blade is reduced, thereby affecting the wind power generation efficiency. Therefore, a blade damping component of a wind turbine is proposed, so that the damping effect on the blade can be guaranteed while reducing the mass of the damping component through multiple and multi-directional damping mechanisms, thereby greatly reducing the impact on the wind power generation effect and improving the use effect. Utility Model Content

[0004] In view of the problems in the prior art, the utility model provides a blade shock-absorbing assembly for a wind turbine, so as to ensure the shock-absorbing effect on the blades while reducing the mass of the shock-absorbing assembly, thereby greatly reducing the impact on the wind power generation effect and improving the use effect.

[0005] The technical solution adopted by the utility model to solve the technical problem is a blade damping assembly of a wind turbine, comprising a connecting head, a mounting assembly and an auxiliary assembly, wherein the outer periphery of the connecting head is slidably connected with the mounting assembly, the outer side of the mounting assembly is rotatably connected with the blade assembly, one side of the connecting head is provided with an auxiliary assembly, and one side of the connecting head is provided with a lubrication assembly;

[0006] The mounting assembly includes a slide seat, both sides of which are connected to a rotating shaft by bolts, the blade assembly includes blades, and the blades are rotatably connected to the slide seat by a rotating shaft, a coil spring is sleeved on the outer periphery of the rotating shaft, one end of the coil spring is connected to the rotating shaft by welding, and the other end of the coil spring is connected to the blade by welding, a magnetic block is fixedly installed on the inner side of the blade by a slot, and the auxiliary assembly includes a sleeve, and an annular magnetic block corresponding to the magnetic block is installed on the surface of the other side of the sleeve by bolts.

[0007] By adopting the above technical solution, it is possible to utilize multiple and multi-directional shock-absorbing methods to improve the working stability of the blades, while also reducing the increased mass of the blades, thereby improving the efficiency of wind power generation.

[0008] Specifically, the lubrication assembly includes a fixed seat, a guide groove is provided in the fixed seat, a second ball is rollingly connected in the guide groove, and an oil filling hole is provided on the top of the fixed seat, and the oil filling hole is connected to the guide groove.

[0009] By adopting the above technical solution, it is convenient to add an auxiliary lubrication mechanism and improve the functionality of the shock absorbing component.

[0010] Specifically, the inner surface of the sleeve is connected to a rubber pad by gluing, the surface of the rubber pad is connected to an arc block by bolts, the inner surface of the arc block is provided with a ball groove, a ball is rollingly connected in the ball groove, and through holes are provided at both ends of the sleeve.

[0011] By adopting the above technical solution, an auxiliary shock absorbing mechanism can be added to the rotating shaft, further improving the stability of wind power generation.

[0012] Specifically, a slide groove is provided on the outer surface of the connector, a slider is slidably connected in the slide groove, and the slider is connected to the slide seat through bolts.

[0013] By adopting the above technical solution, the blades can be buffered and shock-absorbed by means of sliding displacement.

[0014] Specifically, a guide rod is connected in the slide groove by bolts, and the guide rod passes through the slide block. The periphery of the guide rod is located on the periphery of the slide block and a buffer spring is sleeved thereon.

[0015] By adopting the above technical solution, it is convenient to add a buffer mechanism and further improve the working stability of the blade.

[0016] Specifically, one end of the connector is connected to the rotating shaft via a bolt, and the rotating shaft passes through the auxiliary component and the lubrication component.

[0017] By adopting the above technical solution, it is convenient to convert wind energy into mechanical energy by utilizing rotation.

[0018] Specifically, one end of the sleeve is located on the periphery of the fixing seat and is connected to the mounting seat via bolts.

[0019] By adopting the above technical solution, it is convenient to fix and install the sleeve and the wind turbine.

[0020] Beneficial effects of the utility model:

[0021] (1) The blade damping assembly of a wind turbine described in the utility model can utilize elastic force and magnetic repulsion to achieve multi-directional and multi-faceted damping effects on the blades through the arrangement of a sliding seat, a rotating shaft, a coil spring, a magnetic block, a sleeve and an annular magnetic block, thereby greatly reducing the mass added to the blades by the assembly, thereby improving the use effect of wind power generation, having a simple structure and being more reasonable and reliable to use.

[0022] (2) The blade damping assembly of a wind turbine described in the utility model can increase the auxiliary lubrication function by providing a fixing seat, a guide groove, a second ball and an oil injection hole, thereby ensuring the quality of the use of the rotating shaft and helping to extend the service life of the blade assembly and the wind turbine. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

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

[0025] Figure 2 This is a schematic cross-sectional structural diagram of a blade assembly of the utility model;

[0026] Figure 3 This is a schematic cross-sectional structural diagram of the auxiliary component of the utility model;

[0027] Figure 4 This is a schematic cross-sectional view of the lubrication component of the utility model;

[0028] Figure 5 This is a schematic diagram of the cross-sectional structure of the connector of the utility model;

[0029] In the figure: 1. Connector; 101. Slide groove; 102. Guide rod; 103. Slider; 104. Buffer spring; 2. Mounting assembly; 201. Slide seat; 202. Rotating shaft; 203. Coil spring; 3. Blade assembly; 301. Blade; 302. Magnetic block; 4. Auxiliary assembly; 401. Sleeve; 402. Ring magnetic block; 403. Rubber pad; 404. Arc block; 405. Ball groove; 406. Ball; 407. Through hole; 5. Lubrication assembly; 501. Fixed seat; 502. Guide groove; 503. Second ball; 504. Oil filling hole; 6. Rotating shaft; 7. Mounting seat. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0031] In order to ensure the vibration reduction effect on the blades while reducing the mass of the vibration reduction components, the impact on the wind power generation effect is greatly reduced and the use effect is improved. Figure 1-3As shown, a blade damping assembly of a wind turbine according to the utility model comprises a connector 1, a mounting assembly 2 and an auxiliary assembly 4, wherein the outer periphery of the connector 1 is slidably connected to the mounting assembly 2, the outer side of the mounting assembly 2 is rotatably connected to the blade assembly 3, one side of the connector 1 is provided with the auxiliary assembly 4, and one side of the connector 1 is provided with a lubrication assembly 5;

[0032] The mounting assembly 2 includes a slide 201, both sides of which are connected to a rotating shaft 202 by bolts, the blade assembly 3 includes a blade 301, and the blade 301 is rotatably connected to the slide 201 through the rotating shaft 202, a coil spring 203 is sleeved on the outer periphery of the rotating shaft 202, one end of the coil spring 203 is connected to the rotating shaft 202 by welding, and the other end of the coil spring 203 is connected to the blade 301 by welding, a magnet 302 is fixedly installed on the inner side of the blade 301 by a slot, the auxiliary assembly 4 includes a sleeve 401, and an annular magnet 402 corresponding to the magnet 302 is installed on the surface of the other side of the sleeve 401 by bolts.

[0033] When in use, through the elastic deformation of the coil spring 203 and the magnetic repulsion of the magnetic block 302 and the annular magnetic block 402, the blade 301 can be shock-absorbing and buffered in different directions and ways, while reducing the added mass of the blade 301, thereby reducing the impact on wind power generation.

[0034] In order to improve the functionality of the shock absorbing assembly, for example, Figure 1 , Figure 4 As shown, the utility model also includes that the lubrication assembly 5 includes a fixed seat 501, a guide groove 502 is opened in the fixed seat 501, a second ball 503 is rollingly connected in the guide groove 502, and an oil filling hole 504 is opened on the top of the fixed seat 501, and the oil filling hole 504 is connected to the guide groove 502.

[0035] When in use, the fixing seat 501, the guide groove 502 and the second ball 503 can be used to increase an auxiliary lubrication mechanism, thereby improving the use effect of the wind turbine and extending the service life of the blade assembly.

[0036] For example, Figure 3 As shown, the utility model also includes that the inner surface of the sleeve 401 is connected to a rubber pad 403 by gluing, the surface of the rubber pad 403 is connected to an arc block 404 by bolts, the inner surface of the arc block 404 is provided with a ball groove 405, and a ball 406 is rollingly connected in the ball groove 405, and both ends of the sleeve 401 are provided with through holes 407.

[0037] When in use, the rubber pad 403, the arc block 404 and the ball 406 can utilize rolling contact friction to improve the working stability of the rotating shaft 6 and buffer the vibration generated by it.

[0038] For example, Figure 5 As shown, the utility model also includes that a slide groove 101 is provided on the outer surface of the connector 1, a slider 103 is slidably connected in the slide groove 101, and the slider 103 is connected to the slide seat 201 through bolts.

[0039] When in use, the sliding groove 101 and the sliding block 103 facilitate the sliding displacement of the sliding seat 201 to perform displacement buffering.

[0040] For example, Figure 5 As shown, the utility model also includes that the guide rod 102 is connected to the slide groove 101 by bolts, and the guide rod 102 passes through the slider 103, and the periphery of the guide rod 102 is located on the periphery of the slider 103 and is sleeved with a buffer spring 104.

[0041] When in use, the buffer spring 104 is used to reduce the impact force of wind on the blade 301, thereby further improving the stability of use. The buffer spring 104 includes a shock absorber.

[0042] For example, Figure 1 As shown, the utility model also includes that one end of the connector 1 is connected to the rotating shaft 6 via a bolt, and the rotating shaft 6 passes through the auxiliary component 4 and the lubrication component 5 .

[0043] When in use, the rotating shaft 6 cooperates with the connector 1 to rotate and generate electricity.

[0044] For example, Figure 1 As shown, the utility model also includes that one end of the sleeve 401 is located at the periphery of the fixing seat 501 and is connected to the mounting seat 7 by bolts.

[0045] When in use, the sleeve 401 is conveniently bolted to the periphery of the wind turbine through the mounting seat 7 .

[0046] When the utility model is used, the operator first bolts the sleeve 401 to the outer side of the wind turbine through the mounting seat 7. During the process of wind power generation, when the wind blows to the blade 301, the blade 301 can rotate within a certain range through the elastic deformation of the coil spring 203. At the same time, the magnetic force generated by the buffer spring 104, the magnetic block 302 and the annular magnetic block 402 can form a multi-directional and multiple different shock-absorbing methods to perform shock-absorbing treatment on the blade 301, thereby reducing the mass added by the shock-absorbing component to the blade 301 and ensuring the stability of the blade 301. At the same time, the rubber pad 403, the arc block 404 and the ball 406 can be used to buffer the shaking of the rotating shaft 202, further improving the stability of the wind turbine.

[0047] Lubricating oil can also be regularly injected through the oil filling hole 504. When the shaft 6 rotates, the rolling contact friction of the guide groove 502 and the second ball 503 can be used for auxiliary lubrication, which further improves the use effect of the shaft 6 and helps to extend its service life.

[0048] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. A blade damping assembly for a wind turbine, characterized in that: The invention comprises a connecting head (1), a mounting assembly (2) and an auxiliary assembly (4); the outer periphery of the connecting head (1) is slidably connected to the mounting assembly (2); the outer side of the mounting assembly (2) is rotatably connected to the blade assembly (3); one side of the connecting head (1) is provided with the auxiliary assembly (4); and one side of the connecting head (1) is provided with a lubrication assembly (5); The mounting assembly (2) comprises a slide seat (201), both sides of the slide seat (201) are connected to a rotating shaft (202) by bolts, the blade assembly (3) comprises a blade (301), and the blade (301) is rotatably connected to the slide seat (201) by the rotating shaft (202), a coil spring (203) is sleeved on the outer periphery of the rotating shaft (202), one end of the coil spring (203) is connected to the rotating shaft (202) by welding, and the other end of the coil spring (203) is connected to the blade (301) by welding, and a magnetic block (302) is fixedly mounted on the inner side of the blade (301) by a slot, and the auxiliary assembly (4) comprises a sleeve (401), and an annular magnetic block (402) corresponding to the magnetic block (302) is mounted on the surface of the other side of the sleeve (401) by bolts.

2. A blade damping assembly for a wind turbine according to claim 1, characterized in that: The lubrication assembly (5) comprises a fixed seat (501), a guide groove (502) is provided in the fixed seat (501), a second ball (503) is rollingly connected in the guide groove (502), and an oil injection hole (504) is provided on the top of the fixed seat (501), and the oil injection hole (504) is connected to the guide groove (502).

3. A blade damping assembly for a wind turbine according to claim 1, characterized in that: The inner surface of the sleeve (401) is connected to a rubber pad (403) by gluing, the surface of the rubber pad (403) is connected to an arc block (404) by bolts, the inner surface of the arc block (404) is provided with a ball groove (405), a ball (406) is rollingly connected in the ball groove (405), and through holes (407) are provided at both ends of the sleeve (401).

4. A blade damping assembly for a wind turbine according to claim 1, characterized in that: The outer surface of the connector (1) is provided with a sliding groove (101), a sliding block (103) is slidably connected in the sliding groove (101), and the sliding block (103) is connected to the sliding seat (201) via bolts.

5. A blade damping assembly for a wind turbine according to claim 4, characterized in that: The guide rod (102) is connected to the slide groove (101) via bolts, and the guide rod (102) passes through the slide block (103). The periphery of the guide rod (102) is located on the periphery of the slide block (103) and is sleeved with a buffer spring (104).

6. A blade damping assembly for a wind turbine according to claim 1, characterized in that: One end of the connector (1) is connected to a rotating shaft (6) via a bolt, and the rotating shaft (6) passes through the auxiliary component (4) and the lubrication component (5).

7. A blade damping assembly for a wind turbine according to claim 2, characterized in that: One end of the sleeve (401) is located on the periphery of the fixing seat (501) and is connected to a mounting seat (7) via bolts.

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