Synchronous adjusting mechanism of wind power generation variable pitch system

Abstract

The invention provides a wind power generation variable pitch system synchronous adjusting mechanism, and relates to the technical field of wind power generation variable pitch, the wind power generation variable pitch system synchronous adjusting mechanism comprises a center shaft, a lower connecting rod and a supporting column, the center shaft is sleeved with a middle shaft sleeve, the middle shaft sleeve is sleeved with an outer sleeve plate, and the front portion of the outer sleeve plate is sleeved with an outer mounting plate; a lower connecting rod is arranged on the outer mounting plate, an upper connecting rod is arranged on the upper portion of the lower connecting rod, the rear portion of the outer sleeve plate is sleeved with the upper portion of the upper connecting rod, the lower portion of the lower connecting rod is rotatably connected into the supporting column, and the center of the lower connecting rod and the center of the supporting column are located on the same axis. Two groups of annular ribs are fixed among the multiple groups of inclined ribs, and a wear-resistant edge is arranged on the outer edge of the outer mounting plate. The angle and the wind direction of the blade can be synchronously adjusted, and the anti-crater impact performance of the blade mounting plate surface can be enhanced, so that the blade mounting plate surface is firmer and more wear-resistant, and is safer and longer in use.

Description

Technical Field

[0001] The invention relates to the technical field of wind power generation pitch control, and in particular to a synchronous regulating mechanism of a wind power generation pitch control system. Background Art

[0002] In the prior art (publication number CN115095479A), the specification of an active pitch adjustment device for a wind turbine generator set mentions that "the hub is installed at the output end of the generator, the blade unit includes a pitch bearing, a blade and a gear, the pitch bearing is installed on the outer side of the hub, one end of the blade is fixedly connected to the gear, and the blade is placed on the pitch bearing, the adjustment unit includes a motor, a disk body, a rotating disk, a boss, a movable bar and a rack, the motor is embedded in the axis of the hub, and the output end of the motor passes through the axis of the disk body and is detachably connected to the rotating disk, the disk body has a groove body, the end face of the rotating disk has an arc groove, and the movable bar is slidably connected to the groove body", but the pitch adjustment device in the prior art cannot adjust the angle of the blade, and the blade mounting plate surface is not strong and wear-resistant, and it is difficult to be durable. Summary of the invention

[0003] In order to overcome the defects of the prior art, a synchronous adjustment mechanism of a wind power generation pitch control system is provided to solve the problems that the pitch control adjustment device in the prior art cannot adjust the angle of the blade, and the blade mounting plate surface is not strong and wear-resistant and difficult to be durable.

[0004] To achieve the above-mentioned purpose, a synchronous adjustment mechanism of a wind power generation variable pitch system is provided, comprising a central shaft, a lower connecting rod and a support column, wherein a central shaft sleeve is disposed outside the central shaft, and an outer sleeve plate is disposed outside the central shaft sleeve, an outer mounting plate is disposed outside the front of the outer sleeve plate, and an upper connecting rod is disposed on the upper part of the lower connecting rod, and the upper part of the upper connecting rod is sleeved outside the rear part of the outer sleeve plate, the lower part of the lower connecting rod is rotatably connected to the support column, and the centers of the lower connecting rod and the support column are located on the same axis.

[0005] Furthermore, a plurality of groups of oblique ribs are arranged on the outer mounting plate, and two groups of annular ribs are fixed between the plurality of groups of oblique ribs, and a wear-resistant edge is arranged on the outer edge of the outer mounting plate.

[0006] Furthermore, three groups of grooves are formed on the outer mounting plate, and a first motor is installed in the grooves, and a first rotating shaft is installed at the front end of the first motor.

[0007] Furthermore, the front portion of the first rotating shaft is sleeved in the outer connecting sleeve, and the front end of the first rotating shaft is fixed to the rear portion of the lower connecting end of the blade.

[0008] Furthermore, a second motor is fixed on the right side of the upper part of the support column, a second rotating shaft is installed on the upper end of the second motor, and a first gear is installed on the upper part of the second rotating shaft.

[0009] Furthermore, an outer ring is provided on the upper side of the support column, and a second gear is installed in the middle of the lower connecting rod. The second gear is gear-connected to the first gear on the right side, and the outer ring covers the second gear and the first gear.

[0010] The beneficial effects of the present invention are: 1. The present invention utilizes the first motor to appropriately rotate the first rotating shaft, which can drive the blades to synchronously rotate by a certain angle, making it convenient to appropriately adjust the pitch angle, which is safer and more practical.

[0011] 2. The present invention rotates the second shaft through the second motor to drive the first gear to rotate synchronously. The first gear and the second gear are gear-connected to facilitate driving the lower connecting rod to rotate, so that the direction of the central axis can be adjusted to flexibly adjust the wind direction of the pitch, which is faster and more convenient. 3. The annular ribs and oblique ribs provided in the outer mounting plate help to enhance its own strength, making it more resistant to bending and impact, and the wear-resistant edges provided on the outer edges of the outer mounting plate help to enhance the wear resistance, making it more durable. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a front view schematic diagram of an embodiment of the present invention; Figure 2 This is a schematic diagram of installing a lower connecting rod under the central axis of an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of an external mounting plate according to an embodiment of the present invention; Figure 4 This is a schematic diagram of installing blades on an external mounting plate according to an embodiment of the present invention.

[0013] In the figure: 1. center axis; 10. middle axis sleeve; 11. outer sleeve plate; 12. outer mounting plate; 13. annular ribs; 14. oblique ribs; 15. wear-resistant edge; 16. groove; 17. first motor; 170. first rotating shaft; 18. outer connecting sleeve; 19. blade; 190. connecting end; 2. lower connecting rod; 20. upper connecting rod; 21. second gear; 3. support column; 30. second motor; 31. second rotating shaft; 32. first gear; 33. outer sleeve. DETAILED DESCRIPTION

[0014] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. The specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. Specific details such as specific system structures and technologies are proposed in order to more thoroughly understand the embodiments of the present invention. The described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments. However, it should be clear to those skilled in the art that the present invention can also be implemented in other embodiments without these specific details. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present disclosure.

[0015] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0016] Figure 1 is a front view schematic diagram of an embodiment of the present invention, Figure 2 Schematic diagram of the lower connecting rod installed under the central axis of an embodiment of the present invention, Figure 3 Schematic diagram of the structure of the outer mounting plate of an embodiment of the present invention and Figure 4 This is a schematic diagram of installing blades on an external mounting plate according to an embodiment of the present invention.

[0017] Reference Figures 1 to 4 As shown, the present invention provides a synchronous adjustment mechanism of a wind power generation variable pitch system, including a central shaft 1, a lower connecting rod 2 and a support column 3, a central shaft sleeve 10 is disposed outside the central shaft 1, and an outer sleeve plate 11 is disposed outside the central shaft sleeve 10, an outer mounting plate 12 is disposed outside the front of the outer sleeve plate 11, and an upper connecting rod 20 is disposed on the upper part of the lower connecting rod 2, and the upper part of the upper connecting rod 20 is sleeved outside the rear part of the outer sleeve plate 11, the lower part of the lower connecting rod 2 is rotatably connected in the support column 3, and the centers of the lower connecting rod 2 and the support column 3 are both located on the same axis.

[0018] In this embodiment, a plurality of groups of oblique ribs 14 are provided on the outer mounting plate 12, and two groups of annular ribs 13 are fixed between the plurality of groups of oblique ribs 14, and a wear-resistant edge 15 is provided on the outer edge of the outer mounting plate 12; three groups of grooves 16 are provided on the outer mounting plate 12, and a first motor 17 is installed in the groove 16, and a first rotating shaft 170 is installed at the front end of the first motor 17; the front part of the first rotating shaft 170 is sleeved in the outer connecting sleeve 18, and the front end of the first rotating shaft 170 is fixed to the rear part of the lower connecting end 190 of the blade 19.

[0019] As a preferred embodiment, the present invention utilizes the first motor 17 to appropriately rotate the first rotating shaft 170, which can drive the blades 19 to synchronously rotate a certain angle, making it convenient to appropriately adjust the pitch angle, which is safer and more practical.

[0020] In this embodiment, a second motor 30 is fixed to the right side of the upper part of the support column 3, and a second rotating shaft 31 is installed at the upper end of the second motor 30, and a first gear 32 is installed on the upper part of the second rotating shaft 31; an outer ring 33 is provided on the upper side of the support column 3, and a second gear 21 is installed in the middle part of the lower connecting rod 2, the second gear 21 is gear-connected with the first gear 32 on the right side, and the outer ring 33 covers the second gear 21 and the first gear 32.

[0021] As a preferred embodiment, the present invention rotates the second rotating shaft 31 through the second motor 30, driving the first gear 32 to rotate synchronously, and the first gear 32 is gear-connected with the second gear 21, which is convenient for driving the lower connecting rod 2 to rotate, and the direction of the central axis 1 can be adjusted, so as to flexibly adjust the pitch wind direction, which is faster and more convenient; Moreover, the annular ribs 13 and the oblique ribs 14 provided in the outer mounting plate 12 help to enhance its own strength, making it more resistant to bending and impact, and the wear-resistant edge 15 provided on the outer edge of the outer mounting plate 12 helps to enhance the wear resistance, making it more durable.

[0022] The present invention can effectively solve the problems in the prior art that the variable pitch adjustment device cannot adjust the angle of the blade, and the blade mounting plate surface is not strong and wear-resistant, and is difficult to be durable. The present invention can not only synchronously adjust the blade angle and wind direction, but also enhance the anti-break and impact performance of the blade mounting plate surface, making it stronger and more wear-resistant, and safer and longer-lasting to use.

[0023] The above embodiments are used to illustrate the present invention rather than to limit the present invention. Any modifications and changes made to the present invention within the spirit of the present invention and the scope of the claims for protection shall be included in the protection scope of the present invention.

Claims

1. A synchronous adjustment mechanism for a wind power generation pitch control system, characterized in that: The invention comprises a central shaft (1), a lower connecting rod (2) and a supporting column (3); the central shaft (1) is provided with a central shaft sleeve (10), the central shaft sleeve (10) is provided with an outer sleeve plate (11), the front part of the outer sleeve plate (11) is provided with an outer mounting plate (12), the upper part of the lower connecting rod (2) is provided with an upper connecting rod (20), the upper part of the upper connecting rod (20) is sleeved outside the rear part of the outer sleeve plate (11), the lower part of the lower connecting rod (2) is rotatably connected in the supporting column (3), and the centers of the lower connecting rod (2) and the supporting column (3) are both located on the same axis.

2. A synchronous adjustment mechanism for a wind power generation pitch control system according to claim 1, characterized in that: The outer mounting plate (12) is provided with a plurality of groups of oblique ribs (14), two groups of annular ribs (13) are fixed between the plurality of groups of oblique ribs (14), and the outer edge of the outer mounting plate (12) is provided with a wear-resistant edge (15).

3. A synchronous adjustment mechanism for a wind power generation variable pitch system according to claim 1, characterized in that: The outer mounting plate (12) is provided with three groups of grooves (16), a first motor (17) is installed in the grooves (16), and a first rotating shaft (170) is installed at the front end of the first motor (17).

4. A synchronous adjustment mechanism for a wind power generation pitch control system according to claim 3, characterized in that: The front portion of the first rotating shaft (170) is sleeved in the outer connecting sleeve (18), and the front end of the first rotating shaft (170) is fixed to the rear portion of the lower connecting end (190) of the blade (19).

5. A synchronous adjustment mechanism for a wind power generation pitch control system according to claim 1, characterized in that: A second motor (30) is fixed to the right side of the upper part of the support column (3), a second rotating shaft (31) is mounted on the upper end of the second motor (30), and a first gear (32) is mounted on the upper part of the second rotating shaft (31).

6. A synchronous adjustment mechanism for a wind power generation pitch control system according to claim 1, characterized in that: An outer ring (33) is provided on the upper side of the support column (3), and a second gear (21) is installed in the middle of the lower connecting rod (2). The second gear (21) is gear-connected to the first gear (32) on the right side, and the outer ring (33) covers the second gear (21) and the first gear (32).

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