Anti-vibration device for wind power variable pitch battery pack rack

By designing a shock-resistant device for the wind power pitch battery pack including straight rods, transverse columns, flip frames and battery boxes in the wind power hub, the problem of wind power batteries being easily impacted during the rotation of the wind power hub is solved, and better Shock resistance and service life.

CN119467247APending Publication Date: 2025-02-18SHANGHAI HAOMEI ELECTROMECHANICAL TECH CO LTD
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Patent Information

Application Number
CN202411662625.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-20
Publication Date
2025-02-18

AI Technical Summary

Technical Problem

Existing wind power batteries are prone to impact during the rotation of the wind power hub, resulting in damage to the battery, and the existing shock-resistant devices are reduced after use for a certain period of time.

Method used

Design a vibration-resistant device for wind power pitch battery frame, including a horizontal column colinear with the axial center of the wind power hub on the straight rod in the wind power hub. The front end of the horizontal column is equipped with a flip frame through a bearing, and a battery is installed at the bottom of the flip frame. and set counterweights at the bottom of the battery box to ensure that the flip frame remains vertical during the rotation of the wind turbine hub, and avoid collision between the battery and the battery box.

Benefits of technology

By keeping the flip frame vertical, the impact between the battery and the battery box is effectively avoided, the shock resistance is improved, and the service life of the device is extended.

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Abstract

The invention discloses a wind power variable pitch battery pack frame anti-seismic device which comprises a straight rod arranged in a wind power hub, the straight rod is provided with a transverse column collinear with the axis of the wind power hub, the front end of the transverse column is provided with an overturning frame through a bearing, and the overturning frame rotates along the transverse column. A battery box for mounting a battery pack is mounted at the bottom of the overturning frame through a fixing frame, a balancing weight is arranged at the bottom of the battery box, and the overturning frame is always kept in a vertical state in the rotating process of the wind power hub; the battery box is provided with a plurality of mounting cavities which are arranged up and down, each mounting cavity is provided with a lateral mounting opening, and each mounting cavity is only provided with one battery. In the rotating process of the wind power hub, the overturning frame is always kept in a vertical state, so that the collision between a battery and a battery box is avoided, and a relatively good anti-seismic effect is achieved.
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Description

Technical Field

[0001] The present invention relates to the technical field related to wind power systems, and in particular to an anti-seismic device for a wind power variable pitch battery assembly frame. Background Art

[0002] The wind turbine pitch battery rack is the key to ensure the safe operation of wind turbines. The wind turbine pitch battery is the emergency power supply unit of the pitch control system, which can ensure the normal operation of the pitch control system and thus ensure the safe operation of the generator. The existing wind turbine battery is installed in the wind turbine hub, which will rotate with the rotation of the wind turbine hub, which will cause the battery to collide. The existing battery shock absorption and anti-vibration device will reduce its anti-vibration effect after a certain period of use. In the later work, the battery will collide with the rotation of the wind turbine hub, making the battery easy to be damaged. Summary of the invention

[0003] In order to solve the defects in the prior art, the present invention provides a wind turbine variable pitch battery assembly frame anti-seismic device.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] The present invention discloses an anti-seismic device for a wind turbine pitch battery assembly frame, comprising a straight rod arranged in a wind turbine hub, a horizontal column arranged colinearly with the axis of the wind turbine hub is arranged on the straight rod, a turning frame is installed at the front end of the horizontal column via a bearing, and the turning frame rotates along the horizontal column, a battery box for installing a battery pack is installed at the bottom of the turning frame via a fixed frame, and a counterweight block is arranged at the bottom of the battery box, and during the rotation of the wind turbine hub, the turning frame always maintains a vertical state;

[0006] The battery box is provided with a plurality of installation cavities arranged vertically, and each installation cavity is provided with a lateral installation opening, and each installation cavity only installs one battery. A closing plate for closing the lateral installation opening is installed on the outer side of the battery box, and a clamping mechanism for pressing the end of each battery is provided on the closing plate.

[0007] As a preferred technical solution of the present invention, the clamping mechanism includes a positioning plate and a resistance plate, the positioning plate is provided with a plurality of through holes, and the resistance plate is provided with a plurality of limit rods passing through the through holes and moving along the through holes, and a plurality of springs are provided between the positioning plate and the resistance plate, and a manual screw is provided on the closing plate, and the end of the manual screw is rotatably connected to the positioning plate via a rotating member, and the closing plate is provided with a through hole for the limit rod to pass through.

[0008] As a preferred technical solution of the present invention, the horizontal column includes a central column, one end of the central column is provided with a sliding sleeve which is sleeved on the straight rod and moves along the straight rod, and the straight rod is provided with an anti-loosening mechanism for fixing the sliding sleeve, the front end of the central column is provided with a telescopic column which is telescopically movable along the inner cavity of the central column, the central column is provided with a positioning mechanism for positioning the telescopic column, and the telescopic column is rotatably connected to the flip frame via a bearing.

[0009] As a preferred technical solution of the present invention, the anti-loosening mechanism includes a spur rack arranged on the straight rod and along the axial direction of the straight rod, a positioning tube is provided on the sliding sleeve, a non-circular limiting cavity is provided on the positioning tube, and a clamping block moving along the limiting cavity is provided in the limiting cavity, the clamping block is provided with engaging teeth engaged with the spur rack, an end cover is provided at the end of the positioning tube, and a rotating screw that pushes the clamping block inward is threaded into the end cover.

[0010] As a preferred technical solution of the present invention, a pushing block located outside the clamping block is provided in the limiting cavity, and a compression spring is provided between the pushing block and the clamping block.

[0011] As a preferred technical solution of the present invention, the straight rod is provided with an inwardly recessed receiving groove for receiving the spur rack.

[0012] As a preferred technical solution of the present invention, a diagonal brace is provided between the sliding sleeve and the central column.

[0013] As a preferred technical solution of the present invention, the positioning mechanism includes a plurality of fastening bolts provided on the central column and used for positioning the telescopic column.

[0014] As a preferred technical solution of the present invention, the cross-section of the straight rod is elliptical.

[0015] As a preferred technical solution of the present invention, the cross-section of the central column is elliptical.

[0016] The beneficial effects of the present invention are:

[0017] 1. The wind turbine variable pitch battery rack anti-seismic device comprises a straight rod in the wind turbine hub, and a horizontal column colinearly arranged with the axis of the wind turbine hub is arranged on the straight rod, a turning frame is installed at the front end of the horizontal column via a bearing, and the turning frame rotates along the horizontal column, a battery box for installing the battery pack is installed at the bottom of the turning frame via a fixed frame, and a counterweight is arranged at the bottom of the battery box, and during the rotation of the wind turbine hub, the turning frame always keeps a vertical state, so that during the rotation of the wind turbine hub, the turning frame always keeps a vertical state, thus avoiding collision between the battery and the battery box, and having a better anti-seismic effect.

[0018] 2. This type of wind turbine variable pitch battery rack anti-seismic device is provided with a clamping mechanism on the closing plate for pressing the end of each battery, wherein the clamping mechanism is pushed forward by a manual screw to push the positioning plate inward, and under the action of the spring, the contact plate is firmly in contact with the end of the battery, thereby fixing the battery.

[0019] 3. This type of wind turbine variable pitch battery rack seismic device is equipped with a specific horizontal column, and the horizontal column can slide along the straight rod, and the length of the horizontal column can be adjusted, which has a good degree of freedom, so it is convenient to adjust after installation, and the flip frame is rotated along the horizontal column arranged in line with the axis of the wind turbine hub. During the rotation of the wind turbine hub, the flip frame always remains in a vertical state, so it has a better seismic effect.

[0020] 4. This wind turbine pitch battery rack anti-seismic device fixes the sliding sleeve and the straight rod by setting a specific anti-loosening mechanism, wherein the engaging teeth on the clamp block engage with the straight rack, thereby having a better locking effect, so that it is not easy to loosen or fall off during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0022] In the attached picture:

[0023] Figure 1 It is a structural schematic diagram of a wind turbine pitch-controlled battery assembly frame anti-seismic device of the present invention;

[0024] Figure 2 It is a structural schematic diagram of a sliding sleeve of a wind turbine pitch-variable battery assembly frame anti-seismic device of the present invention;

[0025] Figure 3 It is a structural schematic diagram of an anti-loosening mechanism of a wind turbine pitch-changing battery assembly frame anti-seismic device of the present invention;

[0026] Figure 4 It is a structural schematic diagram of a clamping mechanism of a wind turbine pitch-variable battery assembly frame anti-seismic device of the present invention;

[0027] Figure 5 It is a schematic diagram of the installation of a straight rod of a wind turbine pitch-variable battery assembly frame anti-seismic device according to the present invention.

[0028] In the figure: 1. wind turbine hub; 2. straight rod; 3. horizontal column; 4. bearing; 5. flip frame; 6. fixed frame; 7. counterweight; 8. installation cavity; 9. lateral installation port; 10. battery; 11. closing plate; 12. clamping mechanism; 13. positioning plate; 14. contact plate; 15. through hole; 16. limit rod; 17. spring; 18. manual screw; 19. center column; 20. sliding sleeve; 21. anti-loosening mechanism; 22. telescopic column; 23. positioning mechanism; 24. spur rack; 25. positioning tube; 26. limit cavity; 27. clamping block; 28. engaging teeth; 29. ​​end cover; 30. rotating screw; 31. pushing block; 32. clamping spring; 33. storage groove; 34. diagonal support; 35. fastening bolt. DETAILED DESCRIPTION

[0029] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0030] Example: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the present invention provides a wind turbine variable pitch battery assembly frame anti-seismic device, comprising a straight rod 2 arranged in a wind turbine hub 1, a horizontal column 3 arranged colinearly with the axis of the wind turbine hub 1 is arranged on the straight rod 2, a turning frame 5 is installed at the front end of the horizontal column 3 via a bearing 4, and the turning frame 5 rotates along the horizontal column 3, a battery box 6 for installing a battery pack is installed at the bottom of the turning frame 5 via a fixed frame 6, and a counterweight block 7 is arranged at the bottom of the battery box 6, and during the rotation of the wind turbine hub 1, the turning frame 5 always maintains a vertical state;

[0031] The battery box 6 is provided with a plurality of installation cavities 8 arranged vertically, and each installation cavity 8 is provided with a lateral installation opening 9, and each installation cavity 8 is only provided with one battery 10, and a closing plate 11 for closing the lateral installation opening 9 is installed on the outer side of the battery box 6, and a clamping mechanism 12 for pressing the end of each battery is provided on the closing plate 11. A straight rod 2 in the wind turbine hub 1 is provided with a horizontal column 3 colinearly arranged with the axis of the wind turbine hub 1, a flip frame 5 is installed at the front end of the horizontal column 3 via a bearing 4, and the flip frame 5 rotates along the horizontal column 3, a battery box 10 for installing a battery group 10 is installed at the bottom of the flip frame 5 via a fixed frame 6, and a counterweight 7 is provided at the bottom of the battery box 10, and during the rotation of the wind turbine hub 1, the flip frame 5 always maintains a vertical state, so that during the rotation of the wind turbine hub 1, the flip frame 5 always maintains a vertical state, thereby avoiding collision between the battery 10 and the battery box 10, thereby having a better anti-seismic effect.

[0032] The clamping mechanism 12 includes a positioning plate 13 and a contact plate 14, wherein the positioning plate 13 is provided with a plurality of through holes 15, and the contact plate 14 is provided with a plurality of limit rods 16 passing through the through holes 15 and moving along the through holes 15, and a plurality of springs 17 are provided between the positioning plate 13 and the contact plate 14, and a manual screw 18 is provided on the closing plate, and the end of the manual screw 18 is rotatably connected to the positioning plate 13 via a rotating member, and a through hole for the limit rod 16 to pass through is provided on the closing plate 11. A clamping mechanism 12 for pressing the end of each battery 10 is provided on the closing plate 11, wherein the clamping mechanism 12 is pushed forward by the manual screw 18, and the positioning plate 13 is pushed inward, and under the action of the spring 17, the contact plate 14 is firmly in contact with the end of the battery 10, thereby playing the role of fixing the battery 10.

[0033] The cross column 3 includes a central column 19, one end of which is provided with a sleeve 20 which is sleeved on the straight rod 2 and moves along the straight rod 2, and the straight rod 2 is provided with an anti-loosening mechanism 21 for fixing the sleeve 20, and the front end of the central column 19 is provided with a telescopic column 22 which is telescopically movable along the inner cavity of the central column 19, and the central column 19 is provided with a positioning mechanism 23 for positioning the telescopic column 22, and the telescopic column 22 is rotatably connected to the flip frame 5 via a bearing 4. A specific cross column 3 is provided, and the cross column 3 can slide along the straight rod 2, and the length of the cross column 3 can be adjusted, so that it has a good degree of freedom, so that it is convenient to adjust after installation, and the flip frame 5 rotates along the cross column 3 which is arranged in line with the axis of the wind turbine hub 1, and during the rotation of the wind turbine hub 1, the flip frame 5 always maintains a vertical state, so that it has a good anti-seismic effect.

[0034] The anti-loosening mechanism 21 includes a spur rack 24 arranged on the straight rod 1 and along the axial direction of the straight rod 1, a positioning tube 25 is provided on the sliding sleeve 20, a non-circular limiting cavity 26 is provided on the positioning tube 25, and a clamping block 27 is provided in the limiting cavity 26 to move along the limiting cavity 26, and an engaging tooth 28 engaged with the spur rack 24 is provided on the clamping block 27, and an end cap 29 is provided at the end of the positioning tube 25, and a rotating screw 30 is screwed into the end cap 29 to push the clamping block 27 inward. The sliding sleeve 20 and the straight rod 2 are fixed by setting a specific anti-loosening mechanism 21, wherein the engaging tooth 28 on the clamping block 27 is engaged with the spur rack 24, so as to have a better locking effect, so that it is not easy to loosen and fall off during use.

[0035] Among them, a pushing block 31 located outside the clamping block 27 is provided in the limiting cavity 26, and a clamping spring 32 is provided between the pushing block 31 and the clamping block 27, which makes the clamping block and the pushing block in elastic contact, and also makes it difficult for the clamping block and the spur rack to separate.

[0036] The straight rod 1 is provided with a receiving groove 33 which is recessed inward and used to receive the spur rack 24. A diagonal brace 34 is provided between the sliding sleeve and the central column 19. The positioning mechanism 23 includes a plurality of fastening bolts 35 which are provided on the central column and used to position the telescopic column 22.

[0037] The cross section of the straight rod 1 is elliptical. The cross section of the central column 19 is elliptical, which is not easy to rotate, and thus has a better limiting effect.

[0038] Working principle: a straight rod 2 in the wind turbine hub 1 is provided with a horizontal column 3 colinearly arranged with the axis of the wind turbine hub 1, a flip frame 5 is installed at the front end of the horizontal column 3 via a bearing 4, and the flip frame 5 rotates along the horizontal column 3, a battery box 10 for installing a battery group 10 is installed at the bottom of the flip frame 5 via a fixed frame 6, and a counterweight 7 is provided at the bottom of the battery box 10, and during the rotation of the wind turbine hub 1, the flip frame 5 always remains in a vertical state, so that during the rotation of the wind turbine hub 1, the flip frame 5 always remains in a vertical state, thereby avoiding collision between the battery 10 and the battery box 10, thereby having a better anti-seismic effect.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A wind turbine pitch battery rack anti-seismic device, characterized in that: The invention comprises a straight rod (2) arranged in a wind turbine hub (1), the straight rod (2) being provided with a horizontal column (3) arranged colinearly with the axis of the wind turbine hub (1), a turning frame (5) being installed at the front end of the horizontal column (3) via a bearing (4), and the turning frame (5) is rotated along the horizontal column (3), a battery box (6) for installing a battery pack is installed at the bottom of the turning frame (5) via a fixed frame (6), and a counterweight (7) is provided at the bottom of the battery box (6), and during the rotation of the wind turbine hub (1), the turning frame (5) always maintains a vertical state; The battery box (6) is provided with a plurality of installation cavities (8) arranged vertically, and each installation cavity (8) is provided with a lateral installation opening (9), and each installation cavity (8) is provided with only one battery (10), and a closing plate (11) for closing the lateral installation opening (9) is installed on the outer side of the battery box (6), and a pressing mechanism (12) for pressing the end of each battery is provided on the closing plate (11).

2. The wind turbine pitch-controlled battery rack anti-seismic device according to claim 1, characterized in that: The clamping mechanism (12) comprises a positioning plate (13) and a contact plate (14), the positioning plate (13) being provided with a plurality of through holes (15), and the contact plate (14) being provided with a plurality of limiting rods (16) passing through the through holes (15) and moving along the through holes (15), and a plurality of springs (17) being provided between the positioning plate (13) and the contact plate (14), and a manual screw rod (18) being provided on the closing plate, and an end of the manual screw rod (18) being rotatably connected to the positioning plate (13) via a rotating member, and a through hole for the limiting rod (16) to pass through is provided on the closing plate (11).

3. A wind turbine pitch-variable battery stack anti-seismic device according to claim 2, characterized in that: The transverse column (3) includes a central column (19), one end of the central column (19) is provided with a sliding sleeve (20) which is sleeved on the straight rod (2) and moves along the straight rod (2), and the straight rod (2) is provided with an anti-loosening mechanism (21) for fixing the sliding sleeve (20), the front end of the central column (19) is provided with a telescopic column (22) which is telescopically movable along the inner cavity of the central column (19), the central column (19) is provided with a positioning mechanism (23) for positioning the telescopic column (22), and the telescopic column (22) is rotatably connected to the flip frame (5) via a bearing (4).

4. The wind turbine variable pitch battery assembly frame anti-seismic device according to claim 2, characterized in that: The anti-loosening mechanism (21) comprises a spur rack (24) arranged on the straight rod (1) and along the axial direction of the straight rod (1); a positioning tube (25) is arranged on the sliding sleeve (20); a non-circular limiting cavity (26) is arranged on the positioning tube (25); a clamping block (27) moving along the limiting cavity (26) is arranged in the limiting cavity (26); the clamping block (27) is provided with engaging teeth (28) engaging with the spur rack (24); an end cover (29) is provided at the end of the positioning tube (25); and a rotating screw (30) is screwed into the end cover (29) for pushing the clamping block (27) inward.

5. The wind turbine variable pitch battery assembly frame anti-seismic device according to claim 4, characterized in that: A propulsion block (31) located outside the clamping block (27) is provided in the limiting cavity (26), and a compression spring (32) is provided between the propulsion block (31) and the clamping block (27).

6. The wind turbine variable pitch battery rack anti-seismic device according to claim 4, characterized in that: The straight rod (1) is provided with a receiving groove (33) which is recessed inwards and is used to receive the spur rack (24).

7. The wind turbine pitch-controlled battery rack anti-seismic device according to claim 4, characterized in that: An oblique support (34) is provided between the sliding sleeve and the central column (19).

8. The wind turbine variable pitch battery assembly frame anti-seismic device according to claim 4, characterized in that: The positioning mechanism (23) comprises a plurality of fastening bolts (35) which are arranged on the central column and are used to position the telescopic column (22).

9. The wind turbine variable pitch battery assembly frame anti-seismic device according to claim 1, characterized in that: The cross section of the straight rod (1) is elliptical.

10. The wind turbine variable pitch battery assembly frame anti-seismic device according to claim 1, characterized in that: The cross section of the central column (19) is elliptical.