阅读说明：本技术 一种风力发电基座用减震装置 (Damping device for wind power generation base ) 是由 袁静波 于 2020-07-01 设计创作，主要内容包括：本发明公开了一种风力发电基座用减震装置,包括底部基座、外固定座、内转动座和减震组件,所述减震组件包括压簧和卸力板,所述卸力板在所述压簧的作用下随着塔架的震动而上下移动,从而抵消部分震动；且所述内转动座与所述底部基座转动连接,转动所述内转动座使风力发电机的旋转叶片对着风吹来的方向,从而减小风力发电机所需要承受的侧向风力,使得风力发电机的基座所受到的震动变小,从而解决风力发电基座长期受到较大震动而影响风力发电机使用的问题。(The invention discloses a damping device for a wind power generation base, which comprises a bottom base, an outer fixed seat, an inner rotating seat and a damping assembly, wherein the damping assembly comprises a pressure spring and a force unloading plate; and the inner rotating seat is rotatably connected with the bottom base, and the inner rotating seat is rotated to enable the rotating blades of the wind driven generator to face the direction of wind blowing, so that the lateral wind force required to be borne by the wind driven generator is reduced, the vibration borne by the base of the wind driven generator is reduced, and the problem that the wind driven generator is influenced in use due to the fact that the wind driven generator base is greatly vibrated for a long time is solved.)

1. The damping device for the wind power generation base is characterized by comprising a bottom base, an outer fixing base, an inner rotating base and a damping assembly, wherein the outer fixing base is fixedly connected with the bottom base, the outer fixing base is positioned above the bottom base, the inner rotating base is connected with the outer fixing base in a sliding manner, the inner rotating base is positioned inside the outer fixing base, and the inner rotating base is rotatably connected with the bottom base;

damping component includes the pressure spring and unloads the power board, the one end of pressure spring with internal rotation seat fixed connection, the other end of pressure spring with unload power board fixed connection, the pressure spring is located the top of internal rotation seat, it is located to unload the power board the top of pressure spring.

2. The damping device for the wind power generation base according to claim 1, wherein the force-releasing plate comprises an outer support plate, a second compression spring and an inner support plate, the outer support plate has a mounting cavity, one end of the second compression spring is fixedly connected with the outer support plate, the other end of the second compression spring is fixedly connected with the inner support plate, the second compression spring is located inside the mounting cavity, the inner support plate is slidably connected with the outer support plate, and the inner support plate is located inside the mounting cavity.

3. The wind turbine foundation damping device of claim 2, wherein said outer support plate has a first threaded hole communicating with said mounting cavity.

4. The wind power generation base damping device according to claim 3, wherein a rotation bracket is provided at the bottom of the inner rotation base, the bottom base has a groove matching with the rotation bracket, and the rotation bracket is located inside the groove.

5. The wind power generation base damping device according to claim 4, wherein the wind power generation base damping device further comprises a moving frame, the bottom base has an annular groove communicating with the groove, and the moving frame passes through the annular groove and is fixedly connected with the rotating bracket.

6. The damping device for the wind power generation base according to claim 5, further comprising a rotating base fixing component, wherein the rotating base fixing component comprises an L-shaped fixed frame, a movable frame and a threaded column, the fixed frame is fixedly connected with the movable frame, the fixed frame is located above the bottom base, the movable frame is slidably connected with the fixed frame, the movable frame is located below the bottom base, the fixed frame is provided with a small hole matched with the diameter of the threaded column, the movable frame is provided with a second threaded hole matched with the diameter of the threaded column, and the threaded column passes through the small hole to be detachably connected with the movable frame.

7. The wind turbine foundation damping device of claim 6, wherein said movable frame is provided with a connecting bracket, said fixed frame is provided with a connecting groove matching with said connecting bracket, and said connecting bracket is located inside said connecting groove.

8. The damping device for the wind power generation base according to claim 7, wherein the damping device for the wind power generation base further comprises a damping assembly, the damping assembly comprises a damping spring and a ring-shaped protection pad, the inner rotating base is provided with a ring-shaped accommodating cavity, one end of the damping spring is fixedly connected with the inner rotating base, the other end of the damping spring is fixedly connected with the ring-shaped protection pad, the damping spring is located inside the ring-shaped accommodating cavity, and the ring-shaped protection pad is located inside the ring-shaped accommodating cavity.

9. The wind turbine foundation damping device of claim 8, wherein said inner rotary base is provided with a plurality of said damping springs spaced around a circumference thereof inside said annular accommodation chamber.

10. The damping device for the wind power generation base according to claim 9, wherein the damping assembly further comprises a plurality of sheaths, the sheath is sleeved on the outer portion of any damping spring, the sheaths comprise an outer telescopic joint and an inner telescopic joint, one end of the outer telescopic joint is fixedly connected with the inner rotary base, the other end of the outer telescopic joint is slidably connected with the inner telescopic joint, and one end of the inner telescopic joint, which is far away from the outer telescopic joint, is fixedly connected with the annular protection pad.

Technical Field

The invention relates to the technical field of wind power generation infrastructure construction, in particular to a damping device for a wind power generation base.

Background

Wind energy resources are clean renewable energy sources, and wind power generation is one of the most mature technologies, the most extensive development conditions and the most commercialized power generation modes in the field of new energy sources. The existing wind driven generator is generally installed at a high place, and the wind power at the high place is larger, so the lateral wind power which needs to be born by the wind driven generator is also larger, the lateral wind power easily enables the wind driven generator to generate larger vibration, and the wind driven generation base is subjected to larger vibration for a long time, so that each part of the wind driven generation base is easy to loosen and even fall off, and the safety use performance of the wind driven generator is influenced.

Disclosure of Invention

The invention aims to provide a damping device for a wind power generation base, and aims to solve the problem that the wind power generation base is subjected to large vibration for a long time to influence the use of a wind power generator.

In order to achieve the purpose, the invention provides a damping device for a wind power generation base, which comprises a bottom base, an outer fixed seat, an inner rotating seat and a damping assembly, wherein the outer fixed seat is fixedly connected with the bottom base, the outer fixed seat is positioned above the bottom base, the inner rotating seat is connected with the outer fixed seat in a sliding manner, the inner rotating seat is positioned inside the outer fixed seat, and the inner rotating seat is rotatably connected with the bottom base;

damping component includes the pressure spring and unloads the power board, the one end of pressure spring with internal rotation seat fixed connection, the other end of pressure spring with unload power board fixed connection, the pressure spring is located the top of internal rotation seat, it is located to unload the power board the top of pressure spring.

The stress relief plate comprises an outer supporting plate, a second compression spring and an inner supporting plate, the outer supporting plate is provided with a mounting cavity, one end of the second compression spring is fixedly connected with the outer supporting plate, the other end of the second compression spring is fixedly connected with the inner supporting plate, the second compression spring is located inside the mounting cavity, the inner supporting plate is slidably connected with the outer supporting plate, and the inner supporting plate is located inside the mounting cavity.

Wherein, the outer supporting plate is provided with a first threaded hole communicated with the mounting cavity.

The bottom of the inner rotating seat is provided with a rotating support, the bottom base is provided with a groove matched with the rotating support, and the rotating support is located inside the groove.

The damping device for the wind power generation base further comprises a moving frame, the bottom base is provided with an annular groove communicated with the groove, and the moving frame penetrates through the annular groove and is fixedly connected with the rotating support.

Wherein, damping device for wind power generation base is still including rotating the fixed subassembly of seat, rotate the fixed subassembly of seat including the mount, adjustable shelf and the screw thread post that are L shape, the mount with remove a fixed connection, the mount is located the top of bottom base, the adjustable shelf with mount sliding connection, the adjustable shelf is located the below of bottom base, the mount have with screw thread post diameter size assorted aperture, the adjustable shelf have with screw thread post diameter size assorted second screw hole, the screw thread post passes the aperture with the adjustable shelf is dismantled and is connected.

The movable frame is provided with a connecting support, the fixed frame is provided with a connecting groove matched with the connecting support, and the connecting support is located inside the connecting groove.

The damping device for the wind power generation base further comprises a damping assembly, the damping assembly comprises a damping spring and an annular protection pad, the inner rotating seat is provided with an annular accommodating cavity, one end of the damping spring is fixedly connected with the inner rotating seat, the other end of the damping spring is fixedly connected with the annular protection pad, the damping spring is located in the annular accommodating cavity, and the annular protection pad is located in the annular accommodating cavity.

The inner rotating seat is located in the annular accommodating cavity and is provided with a plurality of damping springs at intervals along the circumferential direction.

The buffer assembly further comprises a plurality of sheaths, the sheaths are sleeved outside any damping spring and comprise outer telescopic joints and inner telescopic joints, one end of each outer telescopic joint is fixedly connected with the inner rotating seat, the other end of each outer telescopic joint is connected with the inner telescopic joints in a sliding mode, and one end, far away from the outer telescopic joints, of each inner telescopic joint is fixedly connected with the annular protection pad.

According to the damping device for the wind power generation base, the force unloading plate moves up and down along with the vibration of the tower under the action of the pressure spring, so that part of vibration is counteracted; and the inner rotating seat is rotatably connected with the bottom base, and the inner rotating seat is rotated to enable the rotating blades of the wind driven generator to face the direction of wind blowing, so that the lateral wind force required to be borne by the wind driven generator is reduced, the vibration borne by the base of the wind driven generator is reduced, and the problem that the wind driven generator is influenced in use due to the fact that the wind driven generator base is greatly vibrated for a long time is solved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic sectional view of a wind turbine foundation damping device according to the present invention.

Fig. 2 is a sectional view a-a of fig. 1 of the present invention.

Fig. 3 is a cross-sectional view B-B of fig. 1 of the present invention.

1-a bottom base, 11-a groove, 12-an annular groove, 2-an outer fixed seat, 3-an inner rotating seat, 31-a rotating bracket, 32-an annular accommodating cavity, 4-a damping component, 41-a pressure spring, 42-a force unloading plate, 421-an outer supporting plate, 422-a second compression spring, 423-an inner supporting plate, 424-an installation cavity and 425-a first threaded hole, 5-moving frame, 6-rotating seat fixing component, 61-fixing frame, 611-small hole, 612-connecting groove, 62-moving frame, 621-second threaded hole, 622-connecting bracket, 63-threaded column, 7-buffer component, 71-damping spring, 72-annular protective pad, 8-protective sleeve, 81-outer telescopic joint and 82-inner telescopic joint.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 1 to 3, the present invention provides a technical solution: a damping device for a wind power generation base comprises a bottom base 1, an outer fixed base 2, an inner rotating base 3 and a damping assembly 4, wherein the outer fixed base 2 is fixedly connected with the bottom base 1, the outer fixed base 2 is positioned above the bottom base 1, the inner rotating base 3 is connected with the outer fixed base 2 in a sliding mode, the inner rotating base 3 is positioned inside the outer fixed base 2, and the inner rotating base 3 is connected with the bottom base 1 in a rotating mode;

the damping assembly 4 comprises a pressure spring 41 and a force unloading plate 42, one end of the pressure spring 41 is fixedly connected with the inner rotating seat 3, the other end of the pressure spring 41 is fixedly connected with the force unloading plate 42, the pressure spring 41 is positioned above the inner rotating seat 3, and the force unloading plate 42 is positioned above the pressure spring 41.

In this embodiment, the outer fixed seat 2 is located outside the inner rotating seat 3 to protect and support the inner rotating seat 3, the inner rotating seat 3 has a cavity, a tower of a wind driven generator is inserted into the cavity of the inner rotating seat 3, the force unloading plate 42 is fixedly connected with the tower, when lateral wind force applied to the wind driven generator is large, the tower vibrates, and the force unloading plate 42 moves up and down along with the vibration of the tower under the action of the compression spring 41 to offset part of the vibration; and the inner rotating seat 3 is rotatably connected with the bottom base 1, and the inner rotating seat 3 is rotated to enable the rotating blades of the wind driven generator to face the direction of wind blowing, so that the lateral wind force required to be borne by the wind driven generator is reduced, the vibration borne by the base of the wind driven generator is reduced, and the problem that the wind driven generator is influenced in use due to the fact that the wind driven generator base is greatly vibrated for a long time is solved.

Further, the outer fixing seat 2 and the bottom base 1 are integrally formed.

In this embodiment, the outer fixing base 2 and the bottom base 1 are integrally formed, so that the process steps of the processing of the damping device for the wind power generation base can be reduced, and the connection relationship between the outer fixing base 2 and the bottom base 1 can be more stable.

Further, the force-releasing plate 42 includes an outer support plate 421, a second compression spring 422 and an inner support plate 423, the outer support plate 421 has a mounting cavity 424, one end of the second compression spring 422 is fixedly connected to the outer support plate 421, the other end of the second compression spring 422 is fixedly connected to the inner support plate 423, the second compression spring 422 is located inside the mounting cavity 424, the inner support plate 423 is slidably connected to the outer support plate 421, and the inner support plate 423 is located inside the mounting cavity 424.

In this embodiment, the lower portion of the outer support plate 421 is fixedly connected to the compression spring 41, the inner supporting plate 423 can slide in the mounting cavity 424, after the tower of the wind turbine generator is inserted into the inner rotary seat 3, the inner supporting plate 423 is attached to the tower under the action of the second compression spring 422, and the inner supporting plate 423 is fixed by a screw, so as to fix the force unloading plate 42 to the tower, and the force unloading plate 42 moves up and down along with the vibration of the tower under the action of the compression spring 41, so as to offset part of the vibration.

Further, the outer support plate 421 has a first threaded hole 425 communicating with the mounting cavity 424.

In this embodiment, a screw passes through the first screw hole 425 to abut against the inner abutting plate 423, so as to tightly fix the inner abutting plate 423 and the tower together, thereby improving the damping effect of the damping assembly 4.

Further, the bottom of the inner rotating seat 3 is provided with a rotating support 31, the bottom base 1 is provided with a groove 11 matched with the rotating support 31, and the rotating support 31 is located inside the groove 11.

In this embodiment, the rotating bracket 31 can rotate inside the groove 11, so as to realize the rotating connection between the inner rotating seat 3 and the bottom base 1, and the inner rotating seat 3 is rotated to make the rotating blades of the wind driven generator face the direction of the wind, so as to reduce the lateral wind force required to be borne by the wind driven generator, so that the vibration borne by the base of the wind driven generator is reduced, and the problem that the wind driven generator is affected by the large vibration borne by the base of the wind driven generator for a long time is solved.

Further, the damping device for the wind power generation base further comprises a movable frame 5, the bottom base 1 is provided with an annular groove 12 communicated with the groove 11, and the movable frame 5 penetrates through the annular groove 12 to be fixedly connected with the rotating support 31.

In this embodiment, the movable frame 5 is fixedly connected to the rotating support 31, the movable frame 5 can slide inside the annular groove 12, the movable frame 5 is rotated to drive the inner rotating seat 3 to rotate, and the inner rotating seat 3 rotates to drive the wind driven generator to rotate, so that the wind driven generator can rotate more conveniently.

Further, damping device for wind power generation base is still including rotating the fixed subassembly 6 of seat, it is including the mount 61, adjustable shelf 62 and the screw thread post 63 that are L shape to rotate the fixed subassembly 6 of seat, mount 61 with remove 5 fixed connection, mount 61 is located the top of bottom base 1, adjustable shelf 62 with mount 61 sliding connection, adjustable shelf 62 is located the below of bottom base 1, mount 61 have with screw thread post 63 diameter size assorted aperture 611, adjustable shelf 62 have with screw thread post 63 diameter size assorted second screw hole 621, screw thread post 63 passes aperture 611 with the detachable shelf 62 is dismantled and is connected.

In this embodiment, the fixed frame 61 is fixedly connected to the movable frame 5, the movable frame 62 is slidably connected to the fixed frame 61, the threaded post 63 penetrates through the small hole 611 to be in threaded connection with the movable frame 62, the inner rotary base 3 is rotated to make the rotating blade of the wind turbine face the direction from which the wind blows, and the threaded post 63 is rotated to make the movable frame 5 and the fixed frame 61 clamp the bottom base 1, so as to fix the inner rotary base 3 and prevent the inner rotary base from rotating freely to affect the wind turbine.

Further, the movable frame 62 is provided with a connecting support 622, the fixed frame 61 is provided with a connecting groove 612 matched with the connecting support 622, and the connecting support 622 is located inside the connecting groove 612.

In this embodiment, the connecting bracket 622 is slidable inside the connecting groove 612, so that the movable frame 62 is slidably connected to the fixed frame 61, and the movable frame 62 can be slid more easily.

Further, damping device for wind power generation base still includes buffer unit 7, buffer unit 7 includes damping spring 71 and annular protection pad 72, interior rotation seat 3 has the annular and holds chamber 32, damping spring 71 one end with interior rotation seat 3 fixed connection, damping spring 71 the other end with annular protection pad 72 fixed connection, damping spring 71 is located the annular holds the inside in chamber 32, annular protection pad 72 is located the annular holds the inside in chamber 32.

In the present embodiment, the annular protection pad 72 is tightly attached to the tower under the action of the damping spring 71, and when the tower is subjected to a shock, the annular protection pad 72 slides inside the annular accommodating cavity 32 to counteract part of the shock.

Further, the inner rotary base 3 is provided with a plurality of damping springs 71 at intervals around the circumferential direction thereof inside the annular accommodation chamber 32.

In the present embodiment, the plurality of damping springs 71 are provided inside the annular accommodating chamber 32 of the inner rotating base 3 at intervals around the circumferential direction thereof, so that the damping effect of the damping assembly 7 can be improved.

Further, the buffering assembly 7 further includes a plurality of sheaths 8, the sheath 8 is sleeved outside any one of the damping springs 71, the sheath 8 includes an outer telescopic joint 81 and an inner telescopic joint 82, one end of the outer telescopic joint 81 is fixedly connected to the inner rotating base 3, the other end of the outer telescopic joint 81 is slidably connected to the inner telescopic joint 82, and one end of the inner telescopic joint 82, which is far away from the outer telescopic joint 81, is fixedly connected to the annular protection pad 72.

In the present embodiment, the outer telescopic link 81 and the inner telescopic link 82 are slidable relative to each other, and the damper spring 71 is positioned inside the outer telescopic link 81 and the inner telescopic link 82, so that the damper spring 71 is protected and the position of the damper spring 71 can be regulated.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.