CN217354592U

CN217354592U - Variable pitch speed adjusting device of wind generating set

Info

Publication number: CN217354592U
Application number: CN202221263156.5U
Authority: CN
Inventors: 王芳; 李泽兰
Original assignee: Hunan Electrical College of Technology
Current assignee: Hunan Electrical College of Technology
Priority date: 2022-05-25
Filing date: 2022-05-25
Publication date: 2022-09-02
Anticipated expiration: 2032-05-25

Abstract

The utility model discloses a wind generating set becomes oar speed adjusting device in aerogenerator technical field, including wheel hub seat, blade installation axle, three blade installation hub rotation connects on the wheel hub seat, and the gear has been cup jointed to the one end that the blade installation axle penetrated in the wheel hub seat, rotates through the installation pivot in the wheel hub seat and is connected with the rolling disc, is equipped with face gear on the rolling disc, and face gear meshes with three gear jointly, and the rolling disc is driven its rotation by rotating actuating mechanism. The rotating disc is driven to rotate through the rotation driving mechanism, the end face gear and the three gears on the rotating disc are synchronously meshed for transmission, then the three blade mounting shafts can be driven to rotate, so that the paddle changing operation is performed, in addition, the abrasion degree of the three gears and the end face gear can tend to be consistent, the paddle changing error is reduced, the rack can drive the transmission gear to rotate through the arrangement of the hydraulic rod to drive the rack to horizontally move, and then the rotating disc is driven to rotate.

Description

Variable pitch speed adjusting device of wind generating set

Technical Field

The utility model relates to a aerogenerator technical field specifically is a wind generating set becomes oar speed adjusting device.

Background

The wind power generator is an electric power device which converts wind energy into mechanical work, and the mechanical work drives a rotor to rotate so as to finally output alternating current. The wind-driven generator generally comprises wind wheels, a generator (including a device), a direction regulator (empennage), a tower, a speed-limiting safety mechanism, an energy storage device and other components. The wind driven generator has simple working principle, the wind wheel rotates under the action of wind force, the kinetic energy of the wind is converted into mechanical energy of a wind wheel shaft, and the generator rotates under the drive of the wind wheel shaft to generate electricity. In a broad sense, wind energy is also solar energy, so that the wind power generator is a heat energy utilization generator which uses solar energy as a heat source and uses the atmosphere as a working medium.

Through retrieval, the Chinese patent number CN210714929U discloses an active pitch-changing adjusting device of a small and medium-sized wind generating set, which comprises a generator, wherein the generator is provided with a generator hollow shaft; the traction mechanism comprises a push-pull rod capable of moving along the axial direction; the actuating mechanism comprises a synchronous disc, blades, a rack, a gear and a transmission rod, wherein the blades are connected to a hub fixedly connected with a hollow shaft of the generator, the blades can rotate relative to the hub, one end of the transmission rod is connected with a push-pull rod, the other end of the transmission rod penetrates through the hollow shaft of the generator to be connected with the synchronous disc, the rack is fixedly connected with the synchronous disc and can axially move on the hub under the driving of the synchronous disc, the gear is fixed at the root of each blade, and the gear is meshed with the rack.

The pitch control device in the prior art has the advantages that the three racks are meshed with the gears to drive the three blades to rotate, so that pitch control is achieved, transmission errors cannot be avoided due to the fact that the three racks are arranged, certain deviation occurs in the rotating positions of the three blades, particularly, the abrasion degree generated in the meshing process of the three racks and the gears is different, and deviation occurs in the rotating positions of the blades.

In order to solve the above problems, we therefore propose a pitch speed adjusting device for a wind turbine generator system.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art's defect, provide a wind generating set becomes oar speed adjusting device, in order to solve above-mentioned technical problem, the utility model provides a following technical scheme:

the utility model provides a wind generating set becomes oar speed adjusting device, including the wheel hub seat, install three blade installation axle along its axial array on the wheel hub seat, it is three blade installation hub rotation connects on the wheel hub seat, the gear has been cup jointed to the one end that the blade installation axle penetrated in the wheel hub seat, it is connected with the rolling disc to rotate through the installation pivot in the wheel hub seat, be equipped with face gear on the rolling disc, face gear meshes with three gear jointly, the rolling disc is by rotating its rotation of actuating mechanism drive.

In the pitch-variable speed adjusting device of the wind generating set, the outer wall of the hub seat is provided with the reinforcing sleeve, and the reinforcing sleeve is provided with a through hole for the blade mounting shaft to freely pass through.

In the pitch-variable speed adjusting device of the wind generating set, the rotation driving mechanism comprises a hydraulic cylinder horizontally arranged in the hub seat, a telescopic rod of the hydraulic cylinder is in driving connection with a rack, a rotating shaft is sleeved with a transmission gear, and the transmission gear is meshed with the rack.

In the pitch-varying speed adjusting device of the wind generating set, one end of the rack, which is far away from the hydraulic cylinder, is fixedly connected with the guide post, the hub seat is internally provided with the guide sleeve, and the guide post is telescopically inserted in the guide sleeve.

In the pitch speed adjusting device of the wind generating set, an angle sensor is arranged at one end of the blade mounting shaft penetrating into the hub seat.

Compared with the prior art, the beneficial effects of the utility model are that: the rotating disc is driven to rotate through the rotation driving mechanism, the end face gear and the three gears on the rotating disc are synchronously meshed for transmission, and then the three blade mounting shafts can be driven to rotate, so that pitch control operation is performed, in addition, the abrasion degree of the three gears and the end face gear can tend to be consistent, the pitch control error is reduced, the rack is driven to horizontally move through the hydraulic rod, the rack can drive the transmission gear to rotate, and then the rotating disc is driven to rotate, the structure is simple, in addition, the guide post is telescopically inserted in the guide sleeve through setting, and then the rack is guided to move.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of the assembly structure of the present invention;

FIG. 2 is an exploded schematic view of the structure of FIG. 1;

FIG. 3 is a side view schematic of the structure of FIG. 1;

FIG. 4 is a schematic cross-sectional elevation view of the structure of FIG. 1;

fig. 5 is an exploded view of the structure of fig. 1 from another perspective.

In the figure: 1-blade mounting shaft, 2-reinforcing sleeve, 3-guide sleeve, 4-hub seat, 5-gear, 6-rotating disk, 7-end face gear, 8-rack, 9-guide column, 10-transmission gear and 11-hydraulic cylinder.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Examples

As shown in fig. 1 to 5, the present embodiment provides a technical solution: the utility model provides a wind generating set becomes oar speed adjusting device, including hub seat 4, three blade installation axle 1 is installed along its axial array on the hub seat 4, three blade installation axle 1 rotates to be connected on hub seat 4, the one end that blade installation axle 1 penetrated in hub seat 4 has cup jointed gear 5, rotate through the installation pivot in the hub seat 4 and be connected with rolling disc 6, be equipped with face gear 7 on the rolling disc 6, face gear 7 meshes with three gear 5 jointly, rolling disc 6 is rotated by rotating its rotation of actuating mechanism drive, make face gear and three gear synchromesh, the meshing in-process, can drive three blade installation axle and rotate, make the blade (not shown in the figure) of three blade installation epaxial installation become the oar.

The hub seat 4 outer wall in this embodiment is equipped with on and consolidates cover 2, offers the through-hole that supplies blade installation axle 1 to pass through freely on the reinforcement cover 2, can consolidate the blade installation axle like this for blade installation axle rigidity obtains promoting.

The rotation driving mechanism in this embodiment includes the pneumatic cylinder 11 of horizontal installation in wheel hub seat 4, and the drive is connected with rack 8 on the telescopic link of pneumatic cylinder 11, has cup jointed drive gear 10 in the pivot, and drive gear 10 and rack 8 mesh drive rack horizontal migration through the pneumatic cylinder for rack and drive gear mesh transmission, and then can drive the rolling disc and rotate.

In this embodiment, a guiding post 9 is fixedly connected to one end of the rack 8 far away from the hydraulic cylinder 11, a guiding sleeve 3 is arranged in the hub seat 4, the guiding post 9 is telescopically inserted into the guiding sleeve 3, and the guiding post is telescopically inserted into the guiding sleeve, so that the horizontal movement of the rack can be guided.

Blade installation axle 1 in this embodiment penetrates the one end in hub seat 4 and is equipped with angle sensor (not shown in the figure), can detect three blade installation axle turned angle like this, and the data signal who detects will feed back to the controller among the prior art, and the managers of being convenient for detect three blade turned angle.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a wind generating set becomes oar speed adjusting device, includes wheel hub seat (4), install three blade installation axle (1) along its axial array on wheel hub seat (4), its characterized in that, it is three blade installation axle (1) rotates and connects on wheel hub seat (4), gear (5) have been cup jointed to the one end that blade installation axle (1) penetrated in wheel hub seat (4), rotate through the installation pivot in wheel hub seat (4) and be connected with rolling disc (6), be equipped with face gear (7) on rolling disc (6), face gear (7) mesh jointly with three gear (5), rolling disc (6) are by its rotation of rotation actuating mechanism drive.

2. The variable pitch speed adjusting device of the wind generating set according to claim 1, wherein the outer wall of the hub seat (4) is provided with a reinforcing sleeve (2), and the reinforcing sleeve (2) is provided with a through hole for the blade mounting shaft (1) to freely pass through.

3. The pitch speed adjusting device of the wind generating set according to claim 1, wherein the rotation driving mechanism comprises a hydraulic cylinder (11) horizontally installed in the hub seat (4), a rack (8) is drivingly connected to a telescopic rod of the hydraulic cylinder (11), a transmission gear (10) is sleeved on the rotating shaft, and the transmission gear (10) is meshed with the rack (8).

4. A variable pitch speed adjusting device of a wind generating set according to claim 3, wherein a guide post (9) is fixedly connected to an end of the rack (8) far away from the hydraulic cylinder (11), a guide sleeve (3) is arranged in the hub seat (4), and the guide post (9) is telescopically inserted in the guide sleeve (3).

5. The pitch speed adjusting device of a wind generating set according to claim 1, wherein an angle sensor is provided at an end of the blade mounting shaft (1) penetrating into the hub seat (4).