Brake device of wind driven generator

Abstract

The utility model relates to the technical field of wind driven generators, and discloses a brake device of a wind driven generator, which comprises a stand column, and a shell is fixedly mounted at the top of the stand column. By arranging the brake ring, the brake pad, the vertical rods and the first motor, when an operator needs to decelerate and brake the wind wheel shaft body, the first motor can be started to enable the rotating shaft to drive the oval block to rotate, and then the hinge rod can push the two vertical rods to move oppositely; the vertical rods can drive the two arc-shaped blocks to move oppositely through the connecting blocks, then the two brake pads make contact with the inner surface of the brake ring at the same time, the rotating speed of the brake ring can be reduced under the action of friction force, and then the rotating speed of the wind wheel shaft body can be reduced; due to the fact that the brake pads can be completely attached to the inner surface of the brake ring, and the two brake pads make contact with the brake ring at the same time, the brake ring is evenly stressed.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power generators, and more specifically, to a brake device for a wind power generator. Background Art

[0002] A wind turbine converts wind energy into mechanical work. The working principle of a wind turbine is relatively simple. The wind wheel rotates under the action of wind, and it converts the kinetic energy of the wind into the mechanical energy of the wind wheel shaft. The generator rotates and generates electricity driven by the wind wheel shaft.

[0003] When a wind turbine needs to be repaired or maintained, it is necessary to use a braking device to stop the rotation of the wind turbine, or it is necessary to slow down the wind turbine when it is running too fast to avoid damage to the wind turbine or the wind rotor due to excessive rotation speed. The braking method of existing wind turbines is basically to brake by unilaterally squeezing the wind rotor shaft or the brake pads on the wind rotor shaft. Although this method can achieve the effect of braking and deceleration, the unilateral squeezing will generate lateral stress, which will cause the brake pads and even the wind rotor shaft to bend, affecting the normal operation of the generator, so it needs to be improved. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a brake device for a wind turbine generator, which has the advantage of uniform braking force.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a brake device for a wind turbine generator, comprising:

[0006] A column, a shell is fixedly installed on the top of the column, a generator body is fixedly installed on the right side of the shell, the other end of the output shaft of the generator body is fixedly connected to the wind wheel shaft body, a disc is fixedly sleeved on the outer surface of the wind wheel shaft body, a brake ring is fixedly installed on the right side of the disc, a movable plate located on the right side of the brake ring is movably sleeved on the outer surface of the wind wheel shaft body, the outer surface of the movable plate is movably connected to the right side of the brake ring, and the bottom of the movable plate is movably connected to the inner surface of the shell;

[0007] A brake mechanism, wherein the brake mechanism is arranged on the left side of the movable plate;

[0008] The brake mechanism includes a connecting block, and there are two connecting blocks, which are movably mounted on the front and rear sides of the movable plate, respectively. The left end of the connecting block is fixedly connected with an arc block, and the outer surface of the arc block is movably connected with the outer surface of the movable plate. The outer surface of the arc block is fixedly connected with a brake pad, and the movement of the arc block will drive the brake pad to move. The right side of the bottom of the connecting block is fixedly connected with a vertical rod;

[0009] The driving mechanism is arranged on the right side of the movable plate.

[0010] As a preferred technical solution of the utility model, the driving mechanism includes:

[0011] A moving block, wherein the moving block is fixedly mounted on the bottom of the right side of the movable plate, the bottom of the moving block is movably connected to the bottom of the inner surface of the shell, a first motor is fixedly mounted on the top of the moving block, and the other end of the output shaft of the first motor is fixedly connected to a rotating shaft;

[0012] The inner wall of the elliptical block is fixedly sleeved with the outer surface of the rotating shaft, both ends of the elliptical block are hinged with hinge rods, and the other end of the hinge rod is hinged with the inner side of the vertical rod.

[0013] As a preferred technical solution of the utility model, the left side of the outer surface of the wind wheel shaft body is movably sleeved with a support seat, the bottom of the support seat is fixedly connected to the bottom of the inner surface of the shell, and the left side of the outer surface of the wind wheel shaft body is fixedly sleeved with a wind wheel body located on the left side of the shell.

[0014] As an optimal technical solution of the utility model, limit plates are fixedly installed on both the front and rear sides of the bottom of the inner surface of the shell, and a limit block is movably installed inside the limit plate. The outer surface of the limit block is fixedly connected to the outer surface of the moving block.

[0015] As a preferred technical solution of the utility model, a fixing frame is fixedly installed on the right side of the moving block, and the bottom of the fixing frame is movably connected to the bottom of the inner surface of the shell.

[0016] As a preferred technical solution of the utility model, a bracket is fixedly installed on the right side of the bottom inner surface of the shell, a second motor is fixedly installed on the top of the inner surface of the bracket, the other end of the output shaft of the second motor is fixedly connected to a round shaft, and a rotating rod is fixedly sleeved on the outer surface of the round shaft.

[0017] As a preferred technical solution of the utility model, a round rod is fixedly sleeved inside the left end of the rotating rod, and the bottom end of the round rod extends into the interior of the fixed frame and is movably connected to the inner surface of the fixed frame.

[0018] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0019] 1. The utility model is provided with a brake ring, a brake pad, a vertical rod and a first motor. When the operator needs to decelerate and brake the wind rotor shaft body, the first motor can be started to make the rotating shaft drive the elliptical block to rotate, so that the hinged rod can push the two vertical rods to move oppositely, so that the vertical rod can drive the two arc blocks to move oppositely through the connecting block, so that the two brake pads can contact the inner surface of the brake ring at the same time, so that the rotation speed of the brake ring can be reduced under the action of friction, and the rotation speed of the wind rotor shaft body can be reduced. Since the brake pad can be completely attached to the inner surface of the brake ring and the two brake pads are in contact with the brake ring at the same time, the brake ring is evenly stressed, so the service life of the brake ring can be extended, and the braking effect is improved.

[0020] 2. The utility model provides a limit plate, a fixed frame, a rotating rod and a round rod. When the operator needs to replace the brake pad, the second motor can be started to make the round shaft drive the rotating rod to rotate, and then the round rod can rotate with the round shaft as the axis, so that the round rod can squeeze and push the inner surface of the fixed frame, so that the round rod drives the fixed frame to move to the right, and then drives the moving block and the movable plate to move to the right under the limiting action of the limit plate, so that the brake pad can be separated from the inside of the brake ring, which is convenient for the operator to replace and maintain the brake pad. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 It is a schematic diagram of the cross-sectional structure of the front side of the utility model;

[0023] Figure 3 It is a schematic diagram of the internal structure of the housing of the utility model;

[0024] Figure 4 This is a schematic cross-sectional view of the brake pad of the utility model;

[0025] Figure 5 It is a cross-sectional structural schematic diagram of the vertical rod of the utility model;

[0026] Figure 6 It is a schematic cross-sectional structure diagram of the wind wheel shaft body of the utility model.

[0027] In the figure: 1. column; 2. shell; 3. generator body; 4. wind rotor shaft body; 5. disc; 6. brake ring; 7. movable plate; 8. connecting block; 9. arc block; 10. brake pad; 11. vertical rod; 12. moving block; 13. first motor; 14. rotating shaft; 15. elliptical block; 16. hinged rod; 17. supporting seat; 18. wind rotor body; 19. limit plate; 20. limit block; 21. fixed frame; 22. bracket; 23. second motor; 24. round shaft; 25. rotating rod; 26. round rod. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] like Figures 1 to 6 As shown, the utility model provides a brake device for a wind turbine generator, comprising:

[0030] A column 1, a housing 2 is fixedly installed on the top of the column 1, a generator body 3 is fixedly installed on the right side of the housing 2, a wind rotor shaft body 4 is fixedly connected to the other end of the output shaft of the generator body 3, a disc 5 is fixedly sleeved on the outer surface of the wind rotor shaft body 4, a brake ring 6 is fixedly installed on the right side of the disc 5, a movable plate 7 located on the right side of the brake ring 6 is movably sleeved on the outer surface of the wind rotor shaft body 4, the outer surface of the movable plate 7 is movably connected to the right side of the brake ring 6, and the bottom of the movable plate 7 is movably connected to the inner surface of the housing 2;

[0031] Braking mechanism, the braking mechanism is arranged on the left side of the movable plate 7;

[0032] The brake mechanism includes a connecting block 8, the number of which is two, and the two connecting blocks 8 are movably mounted on the front and rear sides of the movable plate 7, respectively. The left end of the connecting block 8 is fixedly connected with an arc block 9, the outer surface of the arc block 9 is movably connected with the outer surface of the movable plate 7, the outer surface of the arc block 9 is fixedly connected with a brake pad 10, and the movement of the arc block 9 will drive the brake pad 10 to move, and the right side of the bottom of the connecting block 8 is fixedly connected with a vertical rod 11;

[0033] The driving mechanism is arranged on the right side of the movable plate 7.

[0034] The curvature of the outer side of the brake pad 10 is the same as the curvature of the inner ring of the brake ring 6, so that the brake pad 10 can be completely fitted on the inner surface of the brake ring 6. When the wind wheel shaft body 4 rotates, it will drive the disc 5 to rotate, thereby allowing the brake ring 6 to rotate. When the two vertical rods 11 move in opposite directions, they will drive the two arc blocks 9 to move in opposite directions through the connecting block 8, so that the arc block 9 can drive the brake pad 10 to move, so that the two brake pads 10 contact the inner surface of the brake ring 6, thereby playing a braking role.

[0035] The driving mechanism includes:

[0036] A moving block 12, which is fixedly mounted on the bottom of the right side of the movable plate 7, and the bottom of the moving block 12 is movably connected to the bottom of the inner surface of the housing 2, and a first motor 13 is fixedly mounted on the top of the moving block 12, and the other end of the output shaft of the first motor 13 is fixedly connected to a rotating shaft 14;

[0037] The inner wall of the elliptical block 15 is fixedly sleeved with the outer surface of the rotating shaft 14 . Both ends of the elliptical block 15 are hinged with hinge rods 16 , and the other end of the hinge rod 16 is hinged with the inner side of the vertical rod 11 .

[0038] When the elliptical block 15 rotates, the hinge rod 16 will push the vertical rod 11 to move.

[0039] Among them, the left side of the outer surface of the wind wheel shaft body 4 is movably sleeved with a support seat 17, the bottom of the support seat 17 is fixedly connected to the bottom of the inner surface of the shell 2, and the left side of the outer surface of the wind wheel shaft body 4 is fixedly sleeved with a wind wheel body 18 located on the left side of the shell 2.

[0040] When the wind wheel body 18 rotates, the wind wheel shaft body 4 will be driven to rotate.

[0041] Among them, the front and rear sides of the bottom of the inner surface of the shell 2 are fixedly installed with limit plates 19, and the inner part of the limit plate 19 is movably installed with a limit block 20, and the outer surface of the limit block 20 is fixedly connected to the outer surface of the moving block 12.

[0042] When the moving block 12 moves, it will drive the limiting block 20 to move along the inner surface of the limiting plate 19 , thereby limiting the moving block 12 .

[0043] A fixing frame 21 is fixedly installed on the right side of the moving block 12 , and the bottom of the fixing frame 21 is movably connected to the bottom of the inner surface of the shell 2 .

[0044] When the fixed frame 21 moves to the right, the moving block 12 and the movable plate 7 will be driven to move to the right.

[0045] Among them, a bracket 22 is fixedly installed on the right side of the bottom inner surface of the shell 2, a second motor 23 is fixedly installed on the top inner surface of the bracket 22, the other end of the output shaft of the second motor 23 is fixedly connected to a round shaft 24, and a rotating rod 25 is fixedly sleeved on the outer surface of the round shaft 24.

[0046] The operator can start the second motor 23 to make the circular shaft 24 drive the rotating rod 25 to rotate.

[0047] A round rod 26 is fixedly sleeved inside the left end of the rotating rod 25 , and the bottom end of the round rod 26 extends to the inside of the fixing frame 21 and is movably connected to the inner surface of the fixing frame 21 .

[0048] When the rotating rod 25 rotates, the round rod 26 is driven to move, so that the round rod 26 can press and push the inner surface of the fixed frame 21, thereby driving the fixed frame 21 to move.

[0049] The working principle and use process of this utility model:

[0050] When the wind rotor body 18 rotates, it will drive the wind rotor shaft body 4 to rotate, so that the generator body 3 can generate electricity driven by the wind rotor shaft body 4. When the speed of the wind rotor shaft body 4 is too fast and needs to be slowed down, the operator can start the first motor 13 to make the rotating shaft 14 drive the elliptical block 15 to rotate, so that the hinged rod 16 can push the two vertical rods 11 to move away from each other, so that the vertical rod 11 drives the two arc blocks 9 to move away from each other through the connecting block 8, and then the arc block 9 can simultaneously drive the two brake pads 10 to move away from each other, so that the brake pads 10 can contact the inner surface of the brake ring 6, so that the brake ring 6 can reduce the speed under the action of friction, so that the speed of the wind rotor shaft body 4 can be reduced through the disc 5.

[0051] When the operator needs to replace or maintain the brake pad 10, the second motor 23 can be started to make the round shaft 24 drive the rotating rod 25 to rotate, so that the round rod 26 can rotate with the round shaft 24 as the axis, so that the round rod 26 can squeeze and push the inner surface of the fixed frame 21, so that the round rod 26 drives the fixed frame 21 to move to the right, and the fixed frame 21 can drive the moving block 12 and the movable plate 7 to move to the right, so that the brake pad 10 can be disengaged from the inside of the brake ring 6 to the right, thereby facilitating the operator to replace and maintain the brake pad 10.

[0052] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A brake device for a wind turbine, characterized in that: Included are: A column (1), a shell (2) is fixedly installed on the top of the column (1), a generator body (3) is fixedly installed on the right side of the shell (2), the other end of the output shaft of the generator body (3) is fixedly connected to a wind wheel shaft body (4), a disc (5) is fixedly sleeved on the outer surface of the wind wheel shaft body (4), a brake ring (6) is fixedly installed on the right side of the disc (5), a movable plate (7) located on the right side of the brake ring (6) is movably sleeved on the outer surface of the wind wheel shaft body (4), the outer surface of the movable plate (7) is movably connected to the right side of the brake ring (6), and the bottom of the movable plate (7) is movably connected to the inner surface of the shell (2); A brake mechanism, wherein the brake mechanism is arranged on the left side of the movable plate (7); The brake mechanism comprises a connecting block (8), wherein there are two connecting blocks (8), and the two connecting blocks (8) are movably mounted on the front and rear sides of the movable plate (7), respectively; the left end of the connecting block (8) is fixedly connected with an arc block (9), the outer surface of the arc block (9) is movably connected with the outer surface of the movable plate (7), the outer surface of the arc block (9) is fixedly connected with a brake pad (10), and the movement of the arc block (9) will drive the brake pad (10) to move; and the right side of the bottom of the connecting block (8) is fixedly connected with a vertical rod (11); A driving mechanism is arranged on the right side of the movable plate (7).

2. A brake device for a wind turbine generator according to claim 1, characterized in that: The driving mechanism comprises: A moving block (12), the moving block (12) is fixedly mounted on the bottom of the right side of the movable plate (7), the bottom of the moving block (12) is movably connected to the bottom of the inner surface of the shell (2), a first motor (13) is fixedly mounted on the top of the moving block (12), and the other end of the output shaft of the first motor (13) is fixedly connected to a rotating shaft (14); The elliptical block (15) has an inner wall fixedly sleeved with the outer surface of the rotating shaft (14), and both ends of the elliptical block (15) are hinged with hinge rods (16), and the other end of the hinge rod (16) is hinged with the inner side of the vertical rod (11).

3. A brake device for a wind turbine generator according to claim 1, characterized in that: A support seat (17) is movably sleeved on the left side of the outer surface of the wind wheel shaft body (4), the bottom of the support seat (17) is fixedly connected to the bottom of the inner surface of the shell (2), and a wind wheel body (18) located on the left side of the shell (2) is fixedly sleeved on the left side of the outer surface of the wind wheel shaft body (4).

4. A brake device for a wind turbine generator according to claim 1, characterized in that: Limiting plates (19) are fixedly mounted on both the front and rear sides of the bottom of the inner surface of the shell (2), a limiting block (20) is movably mounted inside the limiting plate (19), and the outer surface of the limiting block (20) is fixedly connected to the outer surface of the moving block (12).

5. A brake device for a wind turbine generator according to claim 2, characterized in that: A fixing frame (21) is fixedly mounted on the right side of the moving block (12), and the bottom of the fixing frame (21) is movably connected to the bottom of the inner surface of the shell (2).

6. The brake device of a wind turbine generator according to claim 1, characterized in that: A bracket (22) is fixedly mounted on the right side of the bottom of the inner surface of the shell (2), a second motor (23) is fixedly mounted on the top of the inner surface of the bracket (22), a round shaft (24) is fixedly connected to the other end of the output shaft of the second motor (23), and a rotating rod (25) is fixedly sleeved on the outer surface of the round shaft (24).

7. A brake device for a wind turbine generator according to claim 6, characterized in that: A round rod (26) is fixedly sleeved inside the left end of the rotating rod (25), and the bottom end of the round rod (26) extends into the interior of the fixed frame (21) and is movably connected to the inner surface of the fixed frame (21).

Images