CN218145714U

CN218145714U - Hanging basket structure for wind power maintenance

Info

Publication number: CN218145714U
Application number: CN202222090619.9U
Authority: CN
Inventors: 祖刚
Original assignee: Shanghai Chenming Power Engineering Co ltd
Current assignee: Shanghai Chenming Power Engineering Co ltd
Priority date: 2022-08-09
Filing date: 2022-08-09
Publication date: 2022-12-27
Anticipated expiration: 2032-08-09

Abstract

The utility model discloses a hanging basket structure for wind power overhaul, which comprises a hanging basket body, wherein an opening is arranged inside the hanging basket body; the shape of the opening is matched with that of the blade of the wind driven generator to be overhauled; the hanging basket body comprises a hanging basket platform, two movable platforms which can move oppositely or back to back are arranged on two opposite sides of the hanging basket platform, an opening is formed between the two opposite sides of the two movable platforms and the hanging basket platform, and each movable platform is provided with a driving mechanism for driving the movable platform to move on the hanging basket platform; the size of the opening is enlarged or reduced by adjusting the distance between the two movable platforms. The utility model discloses a rotate the hand wheel and utilize turbine worm and gyro wheel to realize movable platform's removal for adjustment workman's best construction distance adapts to the change of aerogenerator blade shape, thereby guarantees security and the maintenance efficiency that the maintainer was under construction. The utility model discloses application scope is wide, and is firm reliable, and stability is good, simple and convenient practical.

Description

Hanging basket structure for wind power maintenance

Technical Field

The utility model relates to a wind-powered electricity generation overhauls uses basket structure belongs to construction equipment technical field.

Background

The wind driven generator is a new energy clean power generation device which can convert wind energy into mechanical energy and further finally into electric energy, and generally comprises components such as a wind wheel, a generator, a direction regulator, a tower, a speed-limiting safety device, an energy storage device and the like. The operation environment is severe, and the operation under extreme environments such as high temperature difference and strong illumination is usually involved. The moving speed of the blade tip of the fan is extremely high when the fan runs, and can reach 300 km/h.

The fan blade is one of the key components of the wind turbine, and the performance of the fan blade directly influences the performance of the whole system. The blades work at high altitude, the environment is very severe, various media in the air erode the blades almost every moment, the wind turbine is possibly damaged by spring, summer, autumn and winter, severe summer and cold, thunder, hail, rain, snow and sand at any time, and the hidden danger is possibly developed into accidents every day. According to statistics, the accident of the wind power plant is mostly in the period of full wind power generation, the accident generated by the blades accounts for one third of the accident, the electric field of the blade in the accident must stop generating power and start to rush repair, and the blades must be replaced seriously, which inevitably causes high maintenance cost and brings great economic loss to the wind power plant. In a development stage of wind power development in China, a wind farm management and matching service mechanism is still imperfect, especially, a wind power enterprise does not have sufficient understanding on blade maintenance, investment is seriously insufficient, a plurality of hidden dangers exist in operation of a wind power plant, a plurality of unexpected accidents occur at any time, and power transmission and economic benefits of the wind power plant are directly influenced.

The increase of the surface roughness of the blade can reduce the generating efficiency of the wind driven generator by 5-30%, and can cause machine failure in serious cases, so the maintenance problem of the wind driven generator needs to be considered.

In general, a maintenance person uses a square-shaped hanging basket to maintain the wind driven generator blade. In the construction process, a fan blade penetrates through the reversed-square-shaped hanging basket, and a constructor overhauls the blade on the inner side of the hanging basket, but because the diameters and the shapes of different positions of the blade are different greatly, the constructor on the hanging basket cannot be constructed by clinging to the blade, and in the blade surface treatment construction process, the distance between the constructor and a construction surface to be processed is kept to be about 30cm most suitable, if the distance is too far, certain influence is exerted on construction quality and efficiency, and meanwhile, the influence of high aerial wind power is added.

Disclosure of Invention

The to-be-solved technical problem of the utility model is: how to make the constructors on the hanging basket closely attach to the blades for construction.

In order to solve the technical problem, the technical scheme of the utility model is to provide a hanging basket structure for wind power overhaul, which is characterized in that the hanging basket structure comprises a hanging basket body, and an opening is arranged in the hanging basket body; the shape of the opening is matched with that of the blade of the wind driven generator to be overhauled; the hanging basket body comprises hanging basket platforms, two movable platforms which can move oppositely or back to back are arranged on two opposite sides of each hanging basket platform, an opening is formed between the two opposite sides of the two movable platforms and each hanging basket platform, and each movable platform is provided with a driving mechanism for driving the movable platforms to move on the hanging basket platform; the size of the opening is enlarged or reduced by adjusting the distance between the two movable platforms.

Preferably, the opening is a symmetrical spindle-shaped structure.

Preferably, two guide rails are fixed on the basket platform, each guide rail is provided with at least 4 rollers capable of rolling on the guide rails, and the rollers are fixed at the bottom of the movable platform through a support.

Preferably, the driving mechanism comprises a worm wheel, a worm and a hand wheel, one end of the worm is in threaded connection with one end of the worm wheel, the hand wheel is fixed at the other end of the worm, and the other end of the worm wheel penetrates through an I-shaped framework on the hanging basket platform and is in threaded connection with the I-shaped framework.

Preferably, the periphery of the hanging basket platform is provided with a lifter; and a hanging basket control electric box is also arranged on the hanging basket platform.

The utility model provides a wind-powered electricity generation overhauls uses hanging flower basket structure utilizes turbine worm and gyro wheel to realize movable platform's removal through rotating the hand wheel for adjustment workman's best construction distance adapts to the change of aerogenerator blade shape, thereby guarantees security and the maintenance efficiency that the maintainer was under construction. The utility model discloses application scope is wide, and is firm reliable, and stability is good, simple and convenient practical.

Compared with the prior art, the utility model discloses following beneficial effect specifically has:

1. the application range is wide: the maintenance device can be used for the maintenance of various types of wind driven generator blades with different appearances;

2. simple and practical: the telescopic device is flexible, and can provide the optimal construction distance for constructors;

3. firm and reliable: the platform is mainly made of high-strength aluminum alloy and has excellent bearing capacity and tensile resistance;

4. the use effect is good: the distance between the hanging basket platform and the blades can be flexibly changed according to the change condition of the blade shape, so that the construction difficulty is reduced while the best maintenance quality is ensured.

The utility model discloses a hanging flower basket structure can make portable platform nimble remove shrink, steady relatively and safe and reliable on the hanging flower basket platform. Use the utility model discloses when overhauing wind-powered electricity generation blade, can make the hanging flower basket structure can both keep hugging closely the state in each position of wind-powered electricity generation blade, reduce the construction degree of difficulty, promote the efficiency of construction.

Drawings

FIG. 1 is a schematic diagram of a basket structure for wind power overhaul;

FIG. 2 is an external view of a wind turbine blade;

FIG. 3 is a schematic view of various cross-sectional shapes of a blade at different heights;

FIG. 4 is a schematic view of the nacelle structure of the present invention at a blade of a wind turbine at 4 meters;

FIG. 5 is a schematic view of the nacelle structure of the present invention at a position 8 meters away from the blades of the wind turbine;

fig. 6 is a schematic view of the nacelle structure of the present invention at a position 36 meters away from the blades (tip position) of the wind turbine.

Detailed Description

In order to make the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.

The utility model provides a wind-powered electricity generation overhauls uses hanging flower basket structure, as shown in FIG. 1, it includes the hanging flower basket body, and the inside opening 11 of hanging flower basket body is the fusiform structure of similar wind-powered electricity generation blade appearance. When the blades of the wind driven generator are overhauled, the hanging basket body surrounds the blades of the wind driven generator, and the blades of the wind driven generator are arranged in the opening 11. The opening 11 is used for telescopic adjustment when the wind power blade is overhauled so as to adapt to the optimal construction distance.

In this embodiment, the opening 11 is designed in an anastomotic manner according to the shape of the wind turbine blade, and the spindle-shaped structure is a symmetrical structure.

The hanging flower basket body includes hanging flower basket platform 1, and the both sides relative on the hanging flower basket platform 1 are equipped with two movable platform 2, and form opening 11, be spindle-shaped structure promptly with hanging flower basket platform 1 between the both sides that two movable platform 2 are relative. By moving the two movable platforms 2, the distance between the two movable platforms 2 is adjusted, thereby enlarging or reducing the size of the spindle-shaped structure. Two guide rails 4 are arranged on the hanging basket platform 1, at least 4 rollers 3 capable of rolling on the guide rails 4 are arranged on each guide rail 4, and a support connected with the rollers 3 is fixed at the bottom of the movable platform 2. Each movable platform 2 is provided with a driving mechanism for driving the movable platform 2 to move on the hanging basket platform 1. The driving mechanism comprises a worm wheel 5, a worm 6 and a hand wheel 7, one end of the worm 6 is in threaded connection with one end of the worm wheel 5, the other end of the worm 6 is fixed with the hand wheel 7, and the other end of the worm wheel 5 penetrates through an I-shaped framework 10 on the hanging basket platform 1 and is in threaded connection with the I-shaped framework 10. The worm wheel 5 and/or the worm 6 are fixed on the movable platform 2 through a bracket, but the rotation of the worm wheel 5 and/or the worm 6 is not influenced. For example, a bushing is added on the outside of the worm wheel 5 and/or the worm 6.

When the hand wheel 7 is rotated, the worm 6 drives the worm wheel 5 to rotate, and the worm wheel 5 is continuously screwed into the I-shaped framework 10, so that the movable platform 2 on the side is continuously close to the center of the hanging basket body (or close to the other movable platform 2) until the position of the wind driven generator blade to be overhauled is approached. Conversely, it is possible to keep the movable platform 2 constantly away from the centre of the gondola body (or from the other movable platform 2) so that the position between the movable platform 2 and the aerogenerator blade is appropriate.

Wherein, the guide rail 4 and the roller 3 can also be replaced by a slide rail and a slide block respectively.

The periphery of the hanging basket platform 1 is connected through a lifting machine 8 (hanging basket power equipment), and a hanging basket control electronic box 9 is further arranged on the hanging basket platform 1 and used for controlling starting and stopping of the lifting machine 8 and controlling the lifting machine 8 to lift upwards or descend downwards, so that the height of the hanging basket platform 1 is controlled to lift.

The outer part of the whole fusiform hanging basket structure is rectangular (namely the hanging basket platform 1 is rectangular), the length is 6000mm, the width is 3700mm, and the inner part is an irregular fusiform opening 11. The movable platform 2 is 4000mm long, the widest position is 1550mm, and the bottom is provided with a 4-inch roller 3. The roller 3 is clamped into the guide rail 4, and the roller 3 and the guide rail 4 are both 4 inches.

The utility model discloses a whole hanging flower basket structure is given first place to high strength aluminum alloy material, reduces weight. The utility model also comprises a safety lock, a steel wire rope (a main steel wire rope and an auxiliary safety) and the like (which are marked in the structure charts).

The utility model discloses can adapt to the change of blade shape through the nimble adjustment of portable platform 2 on hanging flower basket platform 1, reduce the maintenance degree of difficulty and then improve maintenance efficiency.

In the implementation process, the whole hanging basket controls the elevator 8 to vertically lift and move through the hanging basket control electric box 9, the movement in the horizontal direction (relative to the blades) is carried out through the movable platform 2, and meanwhile, fine adjustment is carried out by ground workers through the cable rope.

A stable triangle is formed by the hanging basket, a hanging point at the top of the fan and 2 cable wind ropes (fixed by a ground anchor) to be used as a measure for maintaining the stability of the hanging basket; meanwhile, rubber fenders are additionally arranged on all the inner side guardrails to prevent the swinging of the hanging basket from impacting the blades. The steel wire ropes adopted by the hanging basket are divided into working steel wire ropes and safety steel wire ropes which respectively and independently run; the position of a hanging point of the safety rope used by constructors is independent of the hanging point of a hanging basket. The rated lifting force of each basket lifter 8 selected by the basket is 800kg. The high-power hoister 8 is selected to ensure that the hanging basket has higher load safety margin.

As shown in fig. 2-6, the working principle and the using process of the present invention are as follows:

constructor (maintenance personal or maintainer promptly) gets into the hanging flower basket main part after, promote to the construction height through lifting machine 8, change the distance between hanging flower basket and the tower section of thick bamboo through changing hoisting point position and cable wind rope, treat after the distance between hanging flower basket and the tower section of thick bamboo is suitable, through worm wheel 5, the distance between worm 6 regulation movable platform 2 and the blade, in order to reach best construction distance, make the shape of this high blade appearance can both laminate the 2 avris of two movable platform completely, guarantee that the distance between constructor and the blade is 250mm to 350mm.

Claims

1. A hanging basket structure for wind power overhaul is characterized by comprising a hanging basket body, wherein an opening (11) is formed in the hanging basket body; the shape of the opening (11) is matched with that of the wind driven generator blade to be overhauled; the hanging basket body comprises a hanging basket platform (1), two movable platforms (2) capable of moving oppositely or back to back are arranged on two opposite sides of the hanging basket platform (1), an opening (11) is formed between the two opposite sides of the two movable platforms (2) and the hanging basket platform (1), and a driving mechanism for driving the movable platforms (2) to move on the hanging basket platform (1) is arranged on each movable platform (2); the size of the opening (11) is enlarged or reduced by adjusting the distance between the two movable platforms (2).

2. The hanging basket structure for wind power overhaul according to claim 1, wherein the opening (11) is a symmetrical spindle-shaped structure.

3. The hanging basket structure for wind power overhaul according to claim 1, wherein two guide rails (4) are fixed on the hanging basket platform (1), each guide rail (4) is provided with at least 4 rollers (3) capable of rolling on the guide rails (4), and the rollers (3) are fixed at the bottom of the movable platform (2) through supports.

4. The hanging basket structure for wind power overhaul according to claim 1, wherein the driving mechanism comprises a worm wheel (5), a worm (6) and a hand wheel (7), one end of the worm (6) is in threaded connection with one end of the worm wheel (5), the hand wheel (7) is fixed at the other end of the worm (6), and the other end of the worm wheel (5) penetrates through an I-shaped framework (10) on the hanging basket platform (1) and is in threaded connection with the I-shaped framework (10).

5. The hanging basket structure for wind power overhaul according to claim 1, wherein the periphery of the hanging basket platform (1) is provided with a lifter (8); a hanging basket control electric box (9) is also arranged on the hanging basket platform (1).