Blade locking mechanism of wind driven generator

Abstract

The utility model relates to the technical field of wind driven generators, and discloses a blade locking mechanism of a wind driven generator, which comprises a blade body and an assembly frame, the front surface of the blade body is fixedly connected with a rotating shaft, the left side surface of the assembly frame is fixedly connected with a controller, and two first fixing shells and two second fixing shells are respectively arranged in the assembly frame. The interior of each first fixing shell is slidably connected with a first supporting block, and the inner wall of each first fixing shell is fixedly connected with a first hydraulic rod; through the blade body, the rotating shaft, the assembling frame, the controller, a limiting tooth cylinder, a fastening bolt, a wear-resistant anti-skid sleeve, a first fixing shell, a first hydraulic rod, a first supporting block, an arc-shaped top block, an anti-skid wear-resistant pad, a second fixing shell, a second hydraulic rod, a second supporting block and an arc-shaped positioning block, the controller can be remotely controlled wirelessly by an external control structure; the two first hydraulic rods are controlled to stretch out and draw back simultaneously, and the two second hydraulic rods are controlled to stretch out and draw back simultaneously.

Description

TECHNICAL FIELD

[0001] The utility model relates to wind driven generator technical field, concretely is a kind of blade locking mechanism of wind driven generator. BACKGROUND

[0002] Wind driven generator is the electric power equipment that wind energy is converted into mechanical work, and then mechanical work is converted into electric energy, it is usually composed of wind wheel, generator, tower drum, control system etc., wherein the blade in wind wheel is the key component of wind energy capture, rotates under the action of wind, drives generator to run and generates electricity, generally during the installation and maintenance of blade, in order to prevent blade accidental rotation, corresponding blade locking structure is often used to temporarily fix the position of blade.

[0003] The utility model with authorization application number CN202420069072.0 discloses a kind of wind driven generator set blade locking tool, using above-mentioned technical scheme, although by support frame can support fixed hydraulic press, prevent hydraulic press to move position, after operating locking device, staff will check whether blade is firmly locked in proper position, this can be confirmed by observing the state of locking device, checking the fastening degree of connecting component etc., once confirming that blade is successfully locked, staff will lock locking device in locking position, to ensure that blade will not move or rotate under the action of wind, but blade mostly needs to be locked under relatively stable condition, lack the locking structure of slowing down the rotating speed of wind driven generator blade, it is difficult to accurately lock it in the scene of blade rotation, and make the locking scene of locking structure to blade more limited, therefore the blade locking mechanism of wind driven generator is provided by the person skilled in the art to solve the problems raised in the above background art. UTILITY MODEL CONTENTS

[0004] (I) technical problem solved

[0005] In view of the deficiencies in the prior art, the utility model provides a kind of blade locking mechanism of wind driven generator, with the function of slowing down the rotating speed of blade, can lock blade under the condition of wind driven generator blade rotation, and increase the application scene of entire locking structure.

[0006] (II) technical scheme

[0007] In order to achieve the above object, the utility model provides following technical scheme: a blade locking mechanism of wind driven generator, including blade body and assembly frame, the positive surface of blade body is connected with rotating shaft fixedly, the left side of assembly frame is connected with controller fixedly, the inside of assembly frame is provided with two first fixed shell and two second fixed shell respectively, the inside of each first fixed shell is connected with first support block slidingly, the inner wall of each first fixed shell is connected with first hydraulic rod fixedly, the inside of each second fixed shell is connected with second support block slidingly, the inner wall of each second fixed shell is connected with second hydraulic rod fixedly, the side of each first support block away from first fixed shell is connected with arc top block fixedly, the inner wall of each arc top block is connected with antiskid wear pad fixedly, the side of each second support block away from second fixed shell is connected with arc locating block fixedly, the outer surface of rotating shaft is connected with limit gear cylinder slidingly, the inner wall of limit gear cylinder is connected with two fastening bolts with the inner wall of rotating shaft is connected with two fastening bolts threadedly, the outer surface of limit gear cylinder is connected with wearproof antiskid sleeve fixedly.

[0008] Preferably, the side of each first fixed shell away from each other is fixedly connected with the inner top wall of the assembly frame and the inner bottom wall of the assembly frame, the side of each second fixed shell away from each other is fixedly connected with the inner top wall of the assembly frame and the inner bottom wall of the assembly frame, the telescopic end of each first hydraulic rod is fixedly connected with the side of the first support block close to the first fixed shell, the telescopic end of each second hydraulic rod is fixedly connected with the side of the second support block close to the second fixed shell, the inner wall of each antiskid wear pad is in contact with the outer surface of the wearproof antiskid sleeve, the inside of each arc locating block is clamped with the outer surface of the limit gear cylinder, the two first hydraulic rods and the two second hydraulic rods are electrically connected with the controller through wires, the two sides of the assembly frame are fixedly connected with mounting plates, and the upper surface of each mounting plate is provided with two mounting holes.

[0009] Preferably, the upper surface of the assembly frame is fixedly connected with a handle support, and the inner wall of the handle support is fixedly connected with a pull rod.

[0010] Preferably, the inside of the handle support is provided with a handle, and the inner wall of the handle is rotationally connected with the outer surface of the pull rod.

[0011] Preferably, the front surface and the back surface of each first support block are fixedly connected with first limit sliding blocks, and the outer surface of each first limit sliding block is slidingly connected with the inside of the first fixed shell.

[0012] Preferably, the front surface and the back surface of each second support block are fixedly connected with second limit sliding blocks, and the outer surface of each second limit sliding block is slidingly connected with the inside of the second fixed shell.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, the blade locking mechanism of the wind driven generator has the following beneficial effects:

[0015] The blade locking mechanism of the wind driven generator, through the mutual cooperation of the blade body, the rotating shaft, the assembly frame, the controller, the limiting tooth cylinder, the fastening bolt, the wear-resistant and anti-skid sleeve, the first fixed shell, the first hydraulic rod, the first supporting block, the arc-shaped top block, the anti-skid wear-resistant pad, the second fixed shell, the second hydraulic rod, the second supporting block and the arc-shaped positioning block, the controller can be wirelessly remotely controlled by an external control structure, thereby controlling the simultaneous extension and retraction of the two first hydraulic rods and the simultaneous extension and retraction of the two second hydraulic rods, and thereby in the scenario of rotation of the blade body and the rotating shaft, the two first hydraulic rods are controlled to be simultaneously elongated by the remote controller, and thereby the two groups of arc-shaped top blocks and anti-skid wear-resistant pads can gradually contact and clamp the wear-resistant and anti-skid sleeves on the outer surface of the limiting tooth cylinder, so as to realize the speed reduction of the blade body and the rotating shaft, and when the rotating speed of the blade body is close to stopping, the two second hydraulic rods are controlled to be simultaneously elongated by the remote controller until the two arc-shaped positioning blocks can be docked with the limiting tooth cylinder to lock the limiting tooth cylinder, so as to complete the locking of the blade body and the rotating shaft, thereby increasing the application scenarios of the locking structure, avoiding the problem that the locking structure is limited in the locking scenarios of the blade due to the lack of a locking structure for slowing down the rotating speed of the blade of the wind driven generator, and making it difficult to accurately lock the blade in the scenario of rotation of the blade. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a three-dimensional overall structure schematic view of the blade locking mechanism of the wind driven generator of the utility model;

[0017] Figure 2 It is a three-dimensional structure schematic view of the assembly frame of the utility model;

[0018] Figure 3 It is a three-dimensional structure schematic view of the wear-resistant and anti-skid sleeve of the utility model;

[0019] Figure 4 It is a three-dimensional structure schematic view of the first fixed shell of the utility model;

[0020] Figure 5 It is a three-dimensional structure schematic view of the second fixed shell of the utility model.

[0021] In the figure: 1, blade body; 2, rotating shaft; 3, assembly frame; 4, controller; 5, limit tooth cylinder; 6, fastening bolt; 7, wear-resistant anti-skid sleeve; 8, first fixed shell; 9, first hydraulic rod; 10, first supporting block; 11, arc-shaped top block; 12, anti-skid wear-resistant pad; 13, second fixed shell; 14, second hydraulic rod; 15, second supporting block; 16, arc-shaped positioning block; 17, mounting plate; 18, mounting hole; 19, handle support; 20, pull rod; 21, handle; 22, first limit sliding block; 23, second limit sliding block. DETAILED DESCRIPTION

[0022] In order to better understand the purpose, structure and function of the utility model, the utility model of a wind turbine blade locking mechanism is described in further detail below.

[0023] Please refer to Figures 1-5 The utility model discloses a wind turbine blade locking mechanism, including blade body 1 and assembly frame 3, the front surface fixed connection of blade body 1 has rotating shaft 2, the left side of assembly frame 3 is fixedly connected with controller 4, the controller 4 can adopt MCU, can adopt Arduino series, and its volume is small, low in cost and low in power consumption, is suitable for miniaturization and embedded application, can realize the control of a plurality of components through programming, it can be connected to the control end of each electrical component through digital output pin, controls the power of each component through analog output pin, realizes specific control logic and timing through code writing, and it also has remote control related functions, which is convenient for external remote control structure to control, the inside of assembly frame 3 is provided with two first fixed shell 8 and two second fixed shell 13 respectively, the side face of the two first fixed shell 8 away from each other is fixedly connected with the inner top wall of assembly frame 3 and the inner bottom wall of assembly frame 3 respectively, the side face of the two second fixed shell 13 away from each other is fixedly connected with the inner top wall of assembly frame 3 and the inner bottom wall of assembly frame 3 respectively, the both sides of assembly frame 3 are fixedly connected with mounting plate 17, the upper surface of each mounting plate 17 is provided with two mounting holes 18, through the setting mounting hole 18, it is convenient to cooperate with the external bolt and other fixed structures to fix mounting plate 17 on the support structure near the wind turbine, and then it is convenient to fix other structures related to assembly frame 3, assembly frame 3 itself is made of high-strength material that is not easy to deform, in order to increase the stability of assembly frame 3 as a whole, after the position of assembly frame 3 is fixedly installed, other support structures are welded and supported at the gap of assembly frame 3.

[0024] The inner part of each first fixed shell 8 is slidably connected with a first supporting block 10, the inner wall of each first fixed shell 8 is fixedly connected with a first hydraulic rod 9, the telescopic end of each first hydraulic rod 9 is fixedly connected with the side of the first supporting block 10 close to the first fixed shell 8, the inner part of each second fixed shell 13 is slidably connected with a second supporting block 15, the upper surface of the assembling frame 3 is fixedly connected with a handle support 19, the inner wall of the handle support 19 is fixedly connected with a pull rod 20, the setting of the pull rod 20 can provide a rotating base surface for the hand holding structure in the handle support 19, and the setting of the handle support 19 and the pull rod 20 can cooperate with the above-mentioned hand holding structure to lift and carry the assembling frame 3 and other related structures.

[0025] The inner wall of each second fixed shell 13 is fixedly connected with a second hydraulic rod 14, the two first hydraulic rods 9 and the two second hydraulic rods 14 are electrically connected with the controller 4 through wires, the telescopic end of each second hydraulic rod 14 is fixedly connected with the side of the second supporting block 15 close to the second fixed shell 13, the side of each first supporting block 10 away from the first fixed shell 8 is fixedly connected with an arc-shaped top block 11, the inner wall of each arc-shaped top block 11 is fixedly connected with an anti-skid wear-resistant pad 12, the inner part of the handle support 19 is provided with a handle 21, the inner wall of the handle 21 is rotatably connected with the outer surface of the pull rod 20, the setting of the handle 21 can rotate around the outer surface of the pull rod 20 in the inner part of the handle support 19, and then the hand holding structure is convenient for lifting and carrying the assembling frame 3 and other related structures.

[0026] The side of each second supporting block 15 away from the second fixed shell 13 is fixedly connected with an arc-shaped positioning block 16, the outer surface of the rotating shaft 2 is slidably connected with a limiting gear cylinder 5, the inner part of each arc-shaped positioning block 16 is clamped with the outer surface of the limiting gear cylinder 5, the front face of each first supporting block 10 and the back face of the first supporting block 10 are fixedly connected with a first limiting sliding block 22, and the outer surface of each first limiting sliding block 22 is slidably connected with the inner part of the first fixed shell 8, the setting of the first limiting sliding block 22 can slide upward and downward in the inner part of the first fixed shell 8, and then the directional stability of the upward and downward sliding of the first supporting block 10 in the first fixed shell 8 is increased.

[0027] The inner wall of the limiting gear cylinder 5 and the inner wall of the rotating shaft 2 are threadedly connected with two fastening bolts 6, the outer surface of the limiting gear cylinder 5 is fixedly connected with a wear-resistant and anti-skid sleeve 7, the inner wall of each anti-skid wear-resistant pad 12 is in contact with the outer surface of the wear-resistant and anti-skid sleeve 7, the front face of each second supporting block 15 and the back face of the second supporting block 15 are fixedly connected with a second limiting sliding block 23, and the outer surface of each second limiting sliding block 23 is slidably connected with the inner part of the second fixed shell 13, the setting of the second limiting sliding block 23 can slide upward and downward in the inner part of the second fixed shell 13, and then the directional sliding stability of the second supporting block 15 in the second fixed shell 13 is increased.

[0028] The working principle of the utility model is: first, the mounting plate 17 is fixed at the blade body 1 in the wind driven generator by the external bolt and other fixing structure cooperation mounting hole 18, when the blade body 1 is in the rotating state, the external remote control structure controls two first hydraulic rods 9 to extend simultaneously through the remote control controller 4, and then two groups of arc top block 11 and anti-skid wear-resistant pad 12 gradually contact and clamp wear-resistant anti-skid sleeve 7 on the outer surface of limiting tooth cylinder 5, so that the speed reduction of blade body 1 and rotating shaft 2 is realized, when the rotating speed of blade body 1 is close to stop, the two second hydraulic rods 14 are controlled to extend simultaneously through the remote control controller 4 at this time, until the limiting tooth cylinder 5 is locked after the two arc-shaped positioning blocks 16 are connected with the limiting tooth cylinder 5, the locking of blade body 1 and rotating shaft 2 can be completed, when the blade body 1 is in the static state, the two second hydraulic rods 14 are controlled to extend simultaneously through the remote control controller 4, until the limiting tooth cylinder 5 is locked after the two arc-shaped positioning blocks 16 are connected with the limiting tooth cylinder 5, the locking of blade body 1 and rotating shaft 2 can be completed, the application scene of locking structure is increased, the design of the blade locking mechanism of the whole wind driven generator, effectively solve the problem that the locking structure for slowing down the rotating speed of the blade of wind driven generator is lacked, it is difficult to accurately lock the blade in the scene of rotating, and the locking scene of the blade is relatively limited.

[0029] It can be understood that the utility model is described through some embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model.In addition, under the guidance of the utility model, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the utility model.Therefore, the utility model is not limited by the specific embodiments disclosed here, and all embodiments falling within the scope of the claims of the present application belong to the scope protected by the utility model.

Claims

1. A blade locking mechanism for a wind turbine, comprising a blade body (1) and an assembly frame (3), characterized in that: A rotating shaft (2) is fixedly connected to the front of the blade body (1), and a controller (4) is fixedly connected to the left side of the assembly frame (3). The assembly frame (3) contains two first fixed shells (8) and two second fixed shells (13). A first support block (10) is slidably connected inside each first fixed shell (8), and a first hydraulic rod (9) is fixedly connected to the inner wall of each first fixed shell (8). A second support block (15) is slidably connected inside each second fixed shell (13), and a second hydraulic rod (14) is fixedly connected to the inner wall of each second fixed shell (13). Each of the first support blocks (10) has an arc-shaped top block (11) fixedly connected to one side away from the first fixed shell (8), and an anti-slip and wear-resistant pad (12) fixedly connected to the inner wall of each arc-shaped top block (11). Each of the second support blocks (15) has an arc-shaped positioning block (16) fixedly connected to one side away from the second fixed shell (13). A limiting toothed cylinder (5) is slidably connected to the outer surface of the rotating shaft (2). The inner wall of the limiting toothed cylinder (5) and the inner wall of the rotating shaft (2) are threaded together with two fastening bolts (6). A wear-resistant and anti-slip sleeve (7) is fixedly connected to the outer surface of the limiting toothed cylinder (5).

2. The blade locking mechanism for a wind turbine according to claim 1, characterized in that: The two first fixed shells (8) are respectively fixedly connected to the inner top wall and the inner bottom wall of the assembly frame (3) on their respective sides. The two second fixed shells (13) are respectively fixedly connected to the inner top wall and the inner bottom wall of the assembly frame (3) on their respective sides. The telescopic end of each first hydraulic rod (9) is fixedly connected to the side of the first support block (10) near the first fixed shell (8). The telescopic end of each second hydraulic rod (14) is fixedly connected to the side of the second support block (15) near the second fixed shell (8). One side of the fixed shell (13) is fixedly connected, the inner wall of each of the anti-slip and wear-resistant pads (12) is in contact with the outer surface of the wear-resistant and anti-slip sleeve (7), the interior of each of the arc-shaped positioning blocks (16) is engaged with the outer surface of the limiting toothed cylinder (5), the two first hydraulic rods (9) and the two second hydraulic rods (14) are electrically connected to the controller (4) through wires, and the two sides of the assembly frame (3) are fixedly connected with mounting plates (17), and the upper surface of each mounting plate (17) has two mounting holes (18).

3. The blade locking mechanism for a wind turbine according to claim 1, characterized in that: The upper surface of the assembly frame (3) is fixedly connected to a handle support (19), and the inner wall of the handle support (19) is fixedly connected to a pull rod (20).

4. The blade locking mechanism for a wind turbine according to claim 3, characterized in that: The handle support (19) is provided with a grip (21) inside, and the inner wall of the grip (21) is rotatably connected to the outer surface of the pull rod (20).

5. The blade locking mechanism for a wind turbine according to claim 1, characterized in that: Each of the first support blocks (10) has a first limiting slider (22) fixedly connected to its front and back sides, and the outer surface of each first limiting slider (22) is slidably connected to the interior of the first fixed shell (8).

6. The blade locking mechanism for a wind turbine according to claim 1, characterized in that: Each of the second support blocks (15) has a second limiting slider (23) fixedly connected to its front and back sides. The outer surface of each second limiting slider (23) is slidably connected to the interior of the second fixed shell (13).

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