CN218913059U

CN218913059U - Damping device of wind driven generator

Info

Publication number: CN218913059U
Application number: CN202223525342.4U
Authority: CN
Inventors: 袁建浩
Original assignee: Shanghai Yuan An Environmental Protection Technology Co ltd
Current assignee: Shanghai Yuan An Environmental Protection Technology Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-04-25
Anticipated expiration: 2032-12-29

Abstract

The utility model discloses a wind driven generator damping device which is characterized by comprising a damping screw rod (1), a sleeve (6), a screw cap (2) matched with the sleeve (6) and a damping component arranged in the sleeve (6); an external thread (61) is arranged on the periphery of the sleeve (6); an internal thread (22) is arranged on the inner wall of the screw cap (2); the top of the screw cap (2) is provided with a first through hole (21) matched with the damping screw rod (1); the damping screw rod (1) is movably connected with the damping component after being inserted into the first through hole (21); the screw cap (2) is fixed on the damping screw (1). According to the damping device of the wind driven generator, the damping screw rod (1) is forced to slow down rotation or stop rotation by the action force of the damping component in the opposite direction with feedback, so that the vibration of a wind wheel is prevented.

Description

Damping device of wind driven generator

Technical Field

The utility model belongs to the technical field of wind power generation, and particularly relates to a damping device of a wind power generator.

Background

Wind power generation refers to converting kinetic energy of wind into electrical energy. Wind is a pollution-free energy source, the wind power generation is very environment-friendly, and the electric energy which can be generated is very huge, so that more and more countries pay more attention to the wind power generation. The wind wheel is an important part for converting the kinetic energy of wind into mechanical energy and consists of a plurality of blades. When wind blows to the blades, aerodynamic force is generated on the blades to drive the wind wheel to rotate.

Because the magnitude and direction of wind force are changed frequently, the wind wheel can shake, and a damping device of the wind driven generator is needed to generate a reaction force to prevent the wind wheel from shaking when the wind wheel is stressed, so that the wind wheel can stably run.

Disclosure of Invention

The utility model aims to provide a damping device of a wind driven generator.

The utility model provides a wind driven generator damping device which comprises a damping screw rod (1), a sleeve (6), a screw cap (2) matched with the sleeve (6) and a damping component arranged in the sleeve (6); an external thread (61) is arranged on the periphery of the sleeve (6); an internal thread (22) is arranged on the inner wall of the screw cap (2); the top of the screw cap (2) is provided with a first through hole (21) matched with the damping screw rod (1); the damping screw rod (1) is movably connected with the damping component after being inserted into the first through hole (21); the screw cap (2) is fixed on the damping screw (1).

Preferably, the damping assembly comprises a plurality of arc-shaped gaskets (4); the center positions of the plurality of arc gaskets (4) are respectively provided with a second through hole (41); the arc-shaped gasket (4) is sleeved on the damping screw rod (1).

Preferably, the two arc gaskets (4) are oppositely arranged to form a butterfly structure.

Preferably, the damping assembly further comprises a wear block (5); the top of the wear-resistant block (5) is provided with a threaded hole (51) matched with the damping screw rod (1); the wear-resistant block (5) is fixed in the sleeve (6) and is arranged between the arc-shaped gasket (4) and the bottom of the sleeve (6).

Preferably, the damping assembly further comprises a plate-shaped spacer (3); a third through hole (31) is formed in the center of the plate-shaped gasket (3); the plate-shaped gasket (3) is sleeved on the damping screw rod (1) and is arranged between the screw cap (2) and the arc-shaped gasket (4).

Preferably, a fixed disc (63) is arranged on the periphery of the sleeve (6); the fixed disc (63) is provided with an assembly hole (62).

According to the damping device for the wind driven generator, when the top of the damping screw rod (1) is connected with the wind wheel through other parts, the wind wheel is driven to rotate by wind power of different wind directions or different wind sizes, the damping screw rod (1) drives the screw cap (2) to rotate, the screw cap (2) rotates and simultaneously presses the damping component arranged in the sleeve (6), the damping component simultaneously feeds back an acting force in the opposite direction, and the damping screw rod (1) is forced to slow down the rotation or stop the rotation of the damping component, so that the wind wheel is prevented from shaking.

Drawings

FIG. 1 is a schematic diagram of an explosion structure of a wind turbine damping device according to the present utility model;

FIG. 2 is a schematic diagram of an assembly structure of a damping device of a wind turbine according to the present utility model;

FIG. 3 is a schematic view of an arc gasket according to an embodiment of the present utility model;

fig. 4 is a schematic structural view of a screw cap according to an embodiment of the present utility model.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 to 4, the damping device for the wind driven generator provided by the embodiment comprises a damping screw rod 1, a sleeve 6, a nut cap 2 matched with the sleeve 6 and a damping assembly arranged in the sleeve 6; an external thread 61 is arranged on the periphery of the sleeve 6; the inner wall of the screw cap 2 is provided with an internal thread 22; the top of the screw cap 2 is provided with a first through hole 21 matched with the damping screw 1; the damping screw rod 1 is movably connected with the damping component after being inserted into the first through hole 21; the screw cap 2 is fixed to the damping screw 1.

It will be appreciated by those skilled in the art that when the top of the damper screw 1 is connected to the wind wheel by other components, the wind wheel is subjected to wind forces of different wind directions or magnitudes to cause the damper screw 1 to rotate, the damper screw 1 drives the screw cap 2 to rotate, the screw cap 2 rotates while simultaneously extruding a damper assembly disposed in the sleeve 6, and the damper assembly simultaneously feeds back a force in the opposite direction to force the damper screw 1 to slow down the rotation or stop the rotation thereof, thereby preventing the wind wheel from shaking.

It will be appreciated by those skilled in the art that the connection structure between the damping screw 1 and the wind wheel is common knowledge in the art, and will not be described herein.

Further, the damping assembly includes a plurality of arcuate shims 4; the center positions of the plurality of arc gaskets 4 are respectively provided with a second through hole 41; the arc-shaped gasket 4 is sleeved on the damping screw rod 1.

It can be understood by those skilled in the art that the arc-shaped gasket 4 is sleeved on the damping screw 1, and the reaction force of the damping assembly is further increased by the elastic force of the arc-shaped gasket 4, so that the damping effect of the damping assembly is further improved.

Further, the two arc-shaped gaskets 4 are oppositely arranged to form a butterfly structure.

Those skilled in the art will appreciate that the butterfly structure increases the deformation range of the arcuate pad 4 and also increases the elastic force of the arcuate pad 4, resulting in a better damping effect of the damping assembly.

Further, the damping assembly further comprises a wear block 5; the top of the wear-resistant block 5 is provided with a threaded hole 51 matched with the damping screw 1; the wear-resistant block 5 is fixed in the sleeve 6 and is arranged between the arc-shaped gasket 4 and the bottom of the sleeve 6.

As can be appreciated by those skilled in the art, the wear-resistant block 5 is fixed in the sleeve 6, and a wear-resistant block 5 made of wear-resistant material is provided to prevent the butterfly-shaped gasket from rubbing against the sleeve 6 for a long time, so as to prevent the sleeve 6 from wearing, thereby reducing the service life of the wind turbine damping device provided by the embodiment; one end of the damping screw rod 1 is movably connected with the wear-resisting block 5, so that later maintenance and accessory replacement of the wind driven generator damping device provided by the embodiment can be facilitated.

Further, the damping assembly further comprises a plate-shaped spacer 3; a third through hole 31 is formed in the center of the plate-shaped gasket 3; the plate-shaped gasket 3 is sleeved on the damping screw rod 1 and is arranged between the screw cap 2 and the arc-shaped gasket 4.

It can be understood by those skilled in the art that the friction force between the arc-shaped gasket 4 and the plate-shaped gasket 3 can be increased by the plate-shaped gasket 3, so that the arc-shaped gasket 4 is prevented from rotating, the loss of elastic deformation capability of the arc-shaped gasket 4 is prevented, the arc-shaped gasket 4 is ensured to deform only in the axial direction of the damping screw 1, and the damping effect of the wind driven generator damping device provided by the embodiment is further improved.

Further, a fixing plate 63 is provided on the outer periphery of the sleeve 6; the fixed disk 63 is provided with an assembly hole 62.

It will be appreciated by those skilled in the art that the wind turbine damping device provided in this embodiment may be assembled to a wind turbine by means of the fixed disk 63.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. The damping device of the wind driven generator is characterized by comprising a damping screw rod (1), a sleeve (6), a screw cap (2) matched with the sleeve (6) and a damping assembly arranged in the sleeve (6); an external thread (61) is arranged on the periphery of the sleeve (6); an internal thread (22) is arranged on the inner wall of the screw cap (2); the top of the screw cap (2) is provided with a first through hole (21) matched with the damping screw rod (1); the damping screw rod (1) is movably connected with the damping component after being inserted into the first through hole (21); the screw cap (2) is fixed on the damping screw (1).

2. A wind turbine damping arrangement according to claim 1, wherein the damping assembly comprises a plurality of arcuate shims (4); the center positions of the plurality of arc gaskets (4) are respectively provided with a second through hole (41); the arc-shaped gasket (4) is sleeved on the damping screw rod (1).

3. Wind turbine damping device according to claim 2, wherein the arcuate pads (4) are arranged in a butterfly-like configuration opposite each other.

4. A wind turbine damping device according to claim 3, wherein the damping assembly further comprises a wear block (5); the top of the wear-resistant block (5) is provided with a threaded hole (51) matched with the damping screw rod (1); the wear-resistant block (5) is fixed in the sleeve (6) and is arranged between the arc-shaped gasket (4) and the bottom of the sleeve (6).

5. Wind generator damping device according to claim 4, characterized in that the damping assembly further comprises a plate-shaped spacer (3); a third through hole (31) is formed in the center of the plate-shaped gasket (3); the plate-shaped gasket (3) is sleeved on the damping screw rod (1) and is arranged between the screw cap (2) and the arc-shaped gasket (4).

6. Wind-driven generator damping device according to claim 5, characterized in that the outer circumference of the sleeve (6) is provided with a fixed disc (63); the fixed disc (63) is provided with an assembly hole (62).