CN211950737U

CN211950737U - Telescopic wind-powered electricity generation blade root embedded bolt structure

Info

Publication number: CN211950737U
Application number: CN202020371154.2U
Authority: CN
Inventors: 夏保付; 韩飞; 王建国; 吉玉峰
Original assignee: Shanghai Frp Research Institute Dongtai Co ltd
Current assignee: Shanghai Frp Research Institute Dongtai Co ltd
Priority date: 2020-03-23
Filing date: 2020-03-23
Publication date: 2020-11-17
Anticipated expiration: 2030-03-23

Abstract

A telescopic wind power blade root embedded bolt structure comprises a wind power blade root, a floating bolt, a driving rod and a reset elastic body; the utility model discloses a lower extreme of actuating lever is rotatory downwards in lower thread passage to utilize the butt piece of actuating lever upper end to support the annular mesa of floating bolt downwards, thereby make the upper end of floating bolt all get into in the flexible passageway, realize thoroughly pre-buried; when needs install, the lower extreme of actuating lever upwards rotates in lower thread passage for utilize the butt piece of actuating lever upper end upwards to break away from the annular mesa of floating bolt, so upwards support the sliding plate of pressing the embedded bolt lower extreme through the elastomer that resets, and then make embedded bolt rebound, stretch out flexible passageway's the outside until embedded bolt upper portion, and the annular mesa of floating bolt butt once more in the butt piece downside of actuating lever upper end this moment, so carry out subsequent installation operation, whole structural design is ingenious, the operation is convenient.

Description

Telescopic wind-powered electricity generation blade root embedded bolt structure

Technical Field

The utility model relates to a telescopic wind-powered electricity generation blade root embedded bolt structure.

Background

The wind power generation blade is required to be connected to a host through a blade root bolt, and the connection method mainly comprises two technologies of a T-shaped bolt and an embedded bolt. Less to blade power, the blade root load is little, adopt T type bolt mode simple process, the quality is controlled easily, and generally use embedded bolt to the big blade root of blade root load, the embedded bolt of current wind-powered electricity generation blade generally installs the bolt on wind-powered electricity generation blade root in advance, the tip of general embedded bolt extends the blade root, so collide with the impaired to the bolt easily when the transportation, and then lead to the product quality uncontrollable, if can develop one kind can really can be pre-buried entering blade root with the bolt inside, so can avoid the bolt to receive the damage of colliding with in the transportation.

Disclosure of Invention

To the weak point of above-mentioned prior art, the utility model provides a problem do: the utility model provides a can be with whole pre-buried telescopic wind power blade root embedded bolt structure that gets into the blade root inside of the bolt.

In order to solve the above problem, the utility model discloses the technical scheme who takes as follows:

a telescopic wind power blade root embedded bolt structure comprises a wind power blade root, a floating bolt, a driving rod and a reset elastic body; the blade root of the wind power blade is of an annular structure; a plurality of embedded channels are uniformly arranged in the middle of the interior of the blade root of the wind power blade; the upper ends of the embedded channels are respectively communicated with upper telescopic channels; the lower ends of the embedded channels are respectively communicated with lower thread channels; reset grooves are formed in the periphery of the upper end of the lower threaded channel; the reset groove is communicated with the embedded channel; the upper end of the floating bolt is slidably arranged in the upper telescopic channel; the lower end of the floating bolt extends into the embedded channel; the lower end of the floating bolt is provided with a sliding plate; the sliding plate is attached to and slidably connected in the embedded channel; the floating bolt is provided with a driving groove from top to bottom; an annular table surface is arranged in the driving groove; the upper end of the driving rod is provided with a butting block; the periphery of the lower end of the driving rod is provided with a threaded ring surface; the driving rod is rotatably connected in the driving groove in a penetrating manner; the abutting block at the upper end of the driving rod abuts against the upper side of the annular table board; the lower end of the driving rod is connected into the lower thread channel through a thread ring surface; the reset elastomer is sleeved on the outer side of the periphery of the driving rod, the lower end of the reset elastomer is installed in the reset groove, and the upper end of the reset elastomer elastically supports and presses the periphery of the lower end of the sliding plate.

Furthermore, a rotating hole is formed in the middle of the upper end face of the abutting block.

Further, the rotating hole is a pentagonal screw hole or a rectangular hole.

Further, the embedded channel is of a cylindrical structure; the sliding plate is of a flat cylindrical structure; the outer sides of the periphery of the sliding plate are attached to the inner walls of the periphery of the embedded channel in a sliding mode.

The beneficial effects of the utility model

The utility model discloses a lower extreme of actuating lever is rotatory downwards in lower thread passage to utilize the butt piece of actuating lever upper end to support the annular mesa of pressure floating bolt downwards, drive floating bolt and move downwards in last flexible passageway and pre-buried passageway, thereby make the upper end of floating bolt all get into in the flexible passageway, realize thoroughly pre-burying; when needs install, the lower extreme of actuating lever upwards rotates in lower thread passage for utilize the butt piece of actuating lever upper end upwards to break away from the annular mesa of floating bolt, so upwards support the sliding plate of pressing the embedded bolt lower extreme through the elastomer that resets, and then make embedded bolt rebound, stretch out flexible passageway's the outside until embedded bolt upper portion, and the annular mesa of floating bolt butt once more in the butt piece downside of actuating lever upper end this moment, so carry out subsequent installation operation, whole structural design is ingenious, the operation is convenient.

Drawings

Fig. 1 is a schematic sectional view of the present invention.

Fig. 2 is a schematic view of the wind turbine blade root of the present invention.

Fig. 3 is the enlarged schematic sectional structure view of the whole embedded part on one side of the utility model.

Fig. 4 is a schematic view of the partially pre-buried enlarged cross-sectional structure of one side of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 to 4, a telescopic wind turbine blade root embedded bolt structure includes a wind turbine blade root 1, a floating bolt 2, a driving rod 3, and a reset elastic body 4; the wind power blade root 1 is of an annular structure; a plurality of embedded channels 12 are uniformly arranged in the middle of the interior of the wind power blade root 1; the upper ends of the embedded channels 12 are respectively communicated with upper telescopic channels 11; the lower ends of the embedded channels 12 are respectively communicated with lower thread channels 13; reset grooves 14 are formed in the periphery of the upper end of the lower threaded passage 13; the reset groove 14 is communicated with the embedded channel 12; the upper end of the floating bolt 2 is slidably arranged in the upper telescopic channel 11; the lower end of the floating bolt 2 extends into the embedded channel 12; the lower end of the floating bolt 2 is provided with a sliding plate 21; the sliding plate 21 is attached and slidably connected in the embedded channel 12; the floating bolt 2 is provided with a driving groove 22 from top to bottom; an annular table surface 23 is arranged in the driving groove 22; the upper end of the driving rod 3 is provided with a butting block 31; the periphery of the lower end of the driving rod 3 is provided with a threaded ring surface; the driving rod 3 is rotatably connected in the driving groove 22 in a penetrating way; the abutting block 31 at the upper end of the driving rod 3 abuts against the upper side of the annular table top 23; the lower end of the driving rod 3 is connected into a lower thread channel 13 through a thread ring surface; the reset elastomer 4 is sleeved on the outer side of the periphery of the driving rod 3, the lower end of the reset elastomer 4 is installed in the reset groove 14, and the upper end of the reset elastomer 4 elastically abuts against the periphery of the lower end of the sliding plate 21. Further, a rotation hole 311 is formed in the middle of the upper end surface of the abutting block 31. Further, the rotation hole 311 is a pentagonal screw hole or a rectangular hole. Further, the embedded channel 12 is of a cylindrical structure; the sliding plate 21 is of a flat cylindrical structure; the outer sides of the periphery of the sliding plate 21 are attached to the inner walls of the periphery of the embedded channel 12 in a sliding mode.

The utility model discloses a lower extreme of actuating lever 3 rotates downwards in lower thread passage 13 to utilize the butt piece 31 of actuating lever 3 upper end to support the annular mesa 23 of floating bolt 2 downwards, drive floating bolt 2 and move downwards in last flexible passageway 11 and pre-buried passageway 12, thereby make the upper end of floating bolt 2 all get into flexible passageway 11, realize thoroughly pre-buried; when needs install, the lower extreme of actuating lever 3 upwards rotates in screw channel 13 down, make to utilize the butt piece 31 of actuating lever 3 upper end upwards to break away from the annular mesa 23 of floating bolt 2, so upwards support the sliding plate 21 of pressing the embedded bolt 2 lower extreme through reset elastomer 4, and then make embedded bolt 2 rebound, stretch out flexible passageway 11's the outside until embedded bolt 2 upper portion, and the annular mesa 23 of floating bolt 2 butts in butt piece 31 downside of actuating lever 3 upper end once more this moment, so carry out subsequent installation operation, whole structural design is ingenious, and the operation is convenient.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A telescopic wind power blade root embedded bolt structure is characterized by comprising a wind power blade root, a floating bolt, a driving rod and a reset elastic body; the blade root of the wind power blade is of an annular structure; a plurality of embedded channels are uniformly arranged in the middle of the interior of the blade root of the wind power blade; the upper ends of the embedded channels are respectively communicated with upper telescopic channels; the lower ends of the embedded channels are respectively communicated with lower thread channels; reset grooves are formed in the periphery of the upper end of the lower threaded channel; the reset groove is communicated with the embedded channel; the upper end of the floating bolt is slidably arranged in the upper telescopic channel; the lower end of the floating bolt extends into the embedded channel; the lower end of the floating bolt is provided with a sliding plate; the sliding plate is attached to and slidably connected in the embedded channel; the floating bolt is provided with a driving groove from top to bottom; an annular table surface is arranged in the driving groove; the upper end of the driving rod is provided with a butting block; the periphery of the lower end of the driving rod is provided with a threaded ring surface; the driving rod is rotatably connected in the driving groove in a penetrating manner; the abutting block at the upper end of the driving rod abuts against the upper side of the annular table board; the lower end of the driving rod is connected into the lower thread channel through a thread ring surface; the reset elastomer is sleeved on the outer side of the periphery of the driving rod, the lower end of the reset elastomer is installed in the reset groove, and the upper end of the reset elastomer elastically supports and presses the periphery of the lower end of the sliding plate.

2. The telescopic wind power blade root embedded bolt structure according to claim 1, wherein a rotation hole is formed in the middle of the upper end face of the abutting block.

3. The retractable wind turbine blade root embedded bolt structure as claimed in claim 2, wherein the rotation hole is a pentagonal screw hole or a rectangular hole.

4. The telescopic wind power blade root embedded bolt structure as claimed in claim 1, wherein the embedded channel is of a cylindrical structure; the sliding plate is of a flat cylindrical structure; the outer sides of the periphery of the sliding plate are attached to the inner walls of the periphery of the embedded channel in a sliding mode.