CN217056140U

CN217056140U - Built-in damper of tower drum of wind generating set

Info

Publication number: CN217056140U
Application number: CN202220558394.2U
Authority: CN
Inventors: 孙健; 张杨; 徐常领
Original assignee: Qingdao Tianyuan Jieneng Equipment Manufacturing Co ltd
Current assignee: Qingdao Tianyuan Jieneng Equipment Manufacturing Co ltd
Priority date: 2022-03-15
Filing date: 2022-03-15
Publication date: 2022-07-26
Anticipated expiration: 2032-03-15

Abstract

The utility model discloses a built-in attenuator of a wind generating set tower section of thick bamboo, the connecting plate comprises a connecting plate, the last side wall fixedly connected with toper round platform of connecting plate, the top of toper round platform is connected with the attenuator body, the cavity has been seted up in the toper round platform, a plurality of recesses have been seted up to the outer wall of toper round platform, every sliding insert in the recess and being equipped with the slider, every all be connected with damping cylinder, every jointly through universal hinge between slider and the attenuator body all be equipped with damping mechanism between slider and the homonymy recess. The utility model discloses a damping cylinder self can provide great damping force to the attenuator body to the damping force of attenuator body, cooperation damping spring and buffer spring's dual reaction force to great improvement the resistance buffering effect and the practicality of device.

Description

Built-in damper of tower drum of wind generating set

Technical Field

The utility model relates to a wind power generation equipment technical field especially relates to a built-in attenuator of a wind generating set tower section of thick bamboo.

Background

With the development of wind power technology, the scheme of a high tower drum and a large wind wheel can obviously reduce the electricity consumption cost and improve the project economy. The wind generating set comprises a nacelle and a tower for supporting the nacelle. As the height of the tower increases, the natural frequency of the structure of the tower decreases, and the risk of wind-induced vortex-induced vibration is increased.

The damper is a better solution to the problem of tower drum vortex-induced vibration, in particular to a frequency-modulated liquid damper which is a passive energy-consuming buffer device with higher cost performance. The built-in damper of the existing wind generating set tower cylinder is simple in structure, limited in buffering effect and low in practicability when facing large wind power.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem in the background art and providing a built-in damper of a wind generating set tower section of thick bamboo.

In order to realize the purpose, the utility model adopts the following technical scheme:

a built-in damper of a wind generating set tower cylinder comprises a connecting plate, wherein a conical round platform is fixedly connected to the upper side wall of the connecting plate, a damper body is connected to the upper side of the conical round platform, a cavity is formed in the conical round platform, a plurality of grooves are formed in the outer wall of the conical round platform, sliding blocks are embedded in each groove in a sliding mode, a damping cylinder is connected between each sliding block and the damper body through a universal hinge, a damping mechanism is arranged between each sliding block and the groove on the same side, each damping mechanism comprises cables which are fixedly connected to the side walls on the two sides of the sliding blocks respectively and penetrate through the outer wall of the conical round platform, a fixing cylinder fixedly connected to the inner bottom wall of the conical round platform is connected to one end of each cable which is located in the conical round platform, a fixing plate is fixedly connected to the inside of the fixing cylinder, and a damping spring is fixedly connected to the lower side wall of the fixing plate, the lower end of the damping spring is fixedly connected with a movable plate which is arranged in the fixed cylinder in a sliding mode, a buffer spring is fixedly connected between the lower side wall of the movable plate and the inner bottom wall of the fixed cylinder together, and one end, located in the conical circular truncated cone, of each cable penetrates through the outer wall of the fixed cylinder and the upper side wall of the fixed plate to be fixedly connected with the upper side wall of the movable plate.

Preferably, the outer wall of each cable is provided with a roller which is arranged in the groove on the same side.

Preferably, the side walls of the two sides of each sliding block are fixedly connected with partition plates fixedly connected in the grooves on the same side through two telescopic springs.

Preferably, a connecting spring is fixedly connected between two adjacent damping cylinders.

Preferably, the middle part of one end of each cable, which is positioned in the conical circular truncated cone, is provided with an elastic part.

Preferably, a reinforcing rib is fixedly embedded at the driving end of each damping cylinder.

Compared with the prior art, the built-in damper of the tower barrel of the wind generating set has the advantages that:

1. the damping cylinders and the connecting springs are arranged, the damping cylinders can provide certain damping force, the shock absorption capacity of the device is guaranteed, and meanwhile, the angles of the damping cylinders can be changed after the damping cylinders are stressed, so that the change of the angles among the damping cylinders can be buffered under the reverse force of the connecting springs, and the buffering effect of the device is improved;

2. the damping spring, the buffer spring and the cable are arranged, when the plurality of damping cylinders drive the plurality of sliding blocks to slide, the cable can be stretched, and then under the dual reaction force of the damping spring and the buffer spring, a larger damping force can be provided for the stretched cable, so that the resistance buffering effect and the practicability of the device are greatly improved;

to sum up, the utility model discloses a damping cylinder self can provide great damping force to the attenuator body to the damping force of attenuator body, cooperation damping spring and buffer spring's dual reaction force to great improvement the resistance buffering effect and the practicality of device.

Drawings

Fig. 1 is a schematic structural view of the built-in damper of a tower of a wind generating set according to the present invention;

FIG. 2 is a top view of a cone-shaped truncated cone in the built-in damper of a tower cylinder of a wind generating set provided by the present invention;

FIG. 3 is a schematic structural view of the built-in damper of a tower of a wind turbine generator system in a groove;

FIG. 4 is a schematic view of a partial structure in a conical frustum in a built-in damper of a tower of a wind turbine generator system according to the present invention;

fig. 5 is a sectional view of the driving end of the damping cylinder in the built-in damper of the tower cylinder of the wind generating set of the present invention.

In the figure: the damping device comprises a connecting plate 1, a conical circular truncated cone 2, a damper body 3, a groove 4, a sliding block 5, a universal hinge 6, a damping cylinder 7, a cable 8, a fixed cylinder 9, a fixed plate 10, a damping spring 11, a movable plate 12, a buffer spring 13, a rotating roller 14, a partition plate 15, a telescopic spring 16, a connecting spring 17, an elastic part 18 and a reinforcing rib 19.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-5, the built-in damper of the tower of the wind generating set comprises a connecting plate 1, the upper side wall of the connecting plate 1 is fixedly connected with a conical round table 2, a damper body 3 is connected above the conical round table 2, a cavity is formed in the conical round table 2, a plurality of grooves 4 are formed in the outer wall of the conical round table 2, a slider 5 is embedded in each groove 4 in a sliding mode, the side walls of the two sides of each slider 5 are fixedly connected with partition plates 15 fixedly connected in the grooves 4 on the same side through two telescopic springs 16, when the slider 5 is stressed to slide in the grooves 4, under the reverse acting force of the telescopic springs 16, the slider 5 can move to block, and therefore the buffering effect of the whole device is further improved.

All be connected with damping cylinder 7 through universal hinge 6 between every slider 5 and the attenuator body 3 jointly, equal common fixedly connected with connecting spring 17 between two adjacent damping cylinders 7, the drive end of every damping cylinder 7 is all fixed to be inlayed and is equipped with strengthening rib 19, strengthening rib 19 greatly increased the intensity of damping cylinder 7, when attenuator body 3 receives wind-force and rocks, can be with power transmission to every damping cylinder 7 on, damping cylinder 7 itself also can provide certain damping force, the shock-absorbing capacity of device has been improved, a plurality of damping cylinders 7 cooperate universal hinge 6's rotation after the atress simultaneously, can drive slider 5 and slide in recess 4, will change the angle between two adjacent damping cylinders 7 this moment, then under a plurality of connecting spring 17's counter force, can cushion the change of angle between the damping cylinder 7, the cushioning effect of device has been improved.

Every slider 5 and homonymy recess 4 between all be equipped with damping mechanism, damping mechanism includes respectively fixed connection at 5 both sides lateral walls of slider and runs through the cable 8 of 2 outer walls of toper round platform, the outer wall of every cable 8 all is equipped with the commentaries on classics roller 14 of installing in homonymy recess 4, every cable 8 is located the one end middle part of toper round platform 2 and all is equipped with elastic component 18, change the removal when roller 14 is favorable to the tensile of cable 8, the frictional force when having reduced cable 8 and stretching, elastic component 18 can take place elastic deformation when cable 8 is stretched and can provide certain damping force simultaneously, in order to restrain the tensile of cable 8.

One end of each of the two cables 8 in the conical frustum 2 is connected with a fixed cylinder 9 fixedly connected to the inner bottom wall of the conical frustum 2, the inner side of the fixed cylinder 9 is fixedly connected with a fixed plate 10, the lower side wall of the fixed plate 10 is fixedly connected with a damping spring 11, the lower end of the damping spring 11 is fixedly connected with a moving plate 12 slidably arranged in the fixed cylinder 9, a buffer spring 13 is fixedly connected between the lower side wall of the moving plate 12 and the inner bottom wall of the fixed cylinder 9, one end of each of the two cables 8 in the conical frustum 2 penetrates through the outer wall of the fixed cylinder 9 and the upper side wall of the fixed plate 10 and is fixedly connected with the upper side wall of the moving plate 12, when the damping cylinders 7 are stressed to drive the sliding blocks 5 to slide in the grooves 4, the cables 8 are stretched, then the moving plate 12 is pulled by the cables 8 to move upwards, so that the moving plate 12 is under the dual reaction force of the damping springs 11 and the buffer springs 13, can provide great damping force to tensile cable 8 to reach and restrain the tensile effect of cable 8, great improvement the resistance buffering effect and the practicality of device.

In this regard, the term "fixedly attached" is to be understood broadly, unless otherwise specifically stated or limited, and may be, for example, welded, glued, or integrally formed as is conventional in the art.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The built-in damper of the tower barrel of the wind generating set comprises a connecting plate (1) and is characterized in that the upper side wall of the connecting plate (1) is fixedly connected with a conical round table (2), a damper body (3) is connected above the conical round table (2), a cavity is formed in the conical round table (2), a plurality of grooves (4) are formed in the outer wall of the conical round table (2), a sliding block (5) is embedded in each groove (4) in a sliding mode, each damping cylinder (7) is connected between each sliding block (5) and the damper body (3) through a universal hinge (6) and is provided with a damping mechanism, each damping mechanism comprises cables (8) which are fixedly connected to the side walls on the two sides of each sliding block (5) and penetrate through the outer wall of the conical round table (2), and one ends, located in the conical round table (2), of the two cables (8) are fixedly connected to the conical round table (4) Fixed cylinder (9) on the inner bottom wall of platform (2), fixedly connected with fixed plate (10) in fixed cylinder (9), lower lateral wall fixed connection damping spring (11) of fixed plate (10), the lower extreme fixedly connected with of damping spring (11) slides movable plate (12) that sets up in fixed cylinder (9), common fixedly connected with buffer spring (13), two between the lower lateral wall of movable plate (12) and the inner bottom wall of fixed cylinder (9) one end that cable (8) are located toper round platform (2) all runs through the last lateral wall fixed connection of the last lateral wall of fixed cylinder (9) and fixed plate (10) and movable plate (12).

2. The built-in damper of a tower of a wind generating set according to claim 1, characterized in that the outer wall of each cable (8) is provided with a roller (14) mounted in the groove (4) on the same side.

3. The built-in damper of a tower of a wind generating set according to claim 1, characterized in that the side walls of both sides of each sliding block (5) are fixedly connected with a partition plate (15) fixedly connected in the groove (4) on the same side through two expansion springs (16).

4. The built-in damper of a tower of a wind generating set according to claim 1, characterized in that a connecting spring (17) is fixedly connected between two adjacent damping cylinders (7).

5. The built-in damper of a tower of a wind generating set according to claim 1, characterized in that each cable (8) is provided with an elastic member (18) at the middle of one end in the conical round table (2).

6. The built-in damper of a tower of a wind generating set according to claim 1, characterized in that a reinforcing rib (19) is fixedly embedded at the driving end of each damping cylinder (7).