Self-dragging horizontal transverse moving type wind driven generator blade maintenance hanging basket

Abstract

The utility model relates to the technical field of wind driven generator blade maintenance devices, in particular to a self-dragging horizontal transverse moving type wind driven generator blade maintenance hanging basket which comprises a hanging basket body, a lifting machine is arranged on the side face of the hanging basket body, and a steel wire rope with one end fixedly connected with the ground is arranged on the lifting machine. A plurality of first guide wheels used for guiding a steel wire rope on the elevator in the X direction are arranged on the portion, above the elevator, of the X-direction rod body, and a second guide wheel used for guiding the steel wire rope guided by the first guide wheels in the Z direction is arranged on the Z-direction rod body. A third guide wheel used for guiding the steel wire rope guided by the second guide wheel downwards is arranged on one side of the second guide wheel, and an auxiliary guide wheel used for assisting the third guide wheel in guiding the steel wire rope downwards is arranged below the third guide wheel. And when the position is adjusted, maintenance personnel do not need to communicate with ground working personnel, so that the maintenance efficiency is improved, and the labor amount of the ground working personnel is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of maintenance devices for wind turbine blades, in particular to a self-dragging horizontal translation type maintenance hanging basket for wind turbine blades. Background Art

[0002] The maintenance of wind turbine blades is a key link to ensure the efficient and safe operation of wind turbine generator sets. As the core component of wind turbine generator sets, the maintenance and repair of blades involve many aspects, including crack inspection and repair, surface inspection, lightning protection system inspection, drainage hole inspection, root cover inspection, bolt maintenance and inspection, etc.

[0003] When maintaining wind turbine blades, generally, a hanging point of a hanging basket is set in the nacelle, and the operation hanging basket is arranged to lift into the air, rise to the altitude where the blade needs to be maintained, and then the ground personnel manually control a hoisting machine (such as a manual hoist) to adjust the horizontal translation position of the hanging basket and stick it to the part of the blade that needs to be maintained for maintenance;

[0004] CN216105887U discloses a U-shaped hanging basket suitable for on-line maintenance of wind turbine generator set blades, which includes a first working platform and two second working platforms. The first working platform and the two second working platforms are assembled into a U-shaped structure; the first working platform includes a first bottom platform and two first guardrails, and the two first guardrails are arranged on both sides in the width direction of the first working platform and are assembled and fixed with the first bottom platform; the second working platform includes a second bottom platform, and two fourth guardrails are erected on the outer periphery of the second bottom platform, and a second guardrail and a third guardrail are arranged in parallel. The two sides of the fourth guardrail are respectively connected to one side of the second guardrail and the third guardrail, the other side of the third guardrail is connected to one side of the first guardrail, and a safety lock and a hoist are sequentially arranged from top to bottom on the outer side of the second guardrail. The above patent allows three people to work simultaneously, facilitating the maintenance of blades and improving work efficiency. However, when adjusting the horizontal translation position of the hanging basket, it is necessary for maintenance personnel to communicate frequently with ground staff and wait for the ground staff to manually control the hoisting machine, which not only reduces the maintenance efficiency, but also requires a large amount of physical strength from the ground staff, and increases the risk of communication errors and operation errors between the ground and the hanging basket in the air. Summary of the Invention

[0005] In view of the deficiencies of the above-mentioned prior art, a self-dragging horizontal translation type maintenance hanging basket for wind turbine blades is provided. When adjusting the horizontal translation position, there is no need for maintenance personnel to communicate with ground staff, which improves the maintenance efficiency, reduces the workload of ground staff, and reduces the risk of communication errors and operation errors between the ground and the hanging basket in the air.

[0006] To solve the above technical problems, the technical solution adopted by the present utility model is a self-dragging horizontal traversing type wind turbine blade maintenance hanging basket, which includes a hanging basket body. A hoist is provided on the side of the hanging basket body. A steel wire rope with one end fixedly connected to the ground is provided on the hoist. A plurality of first guide wheels for guiding the steel wire rope on the hoist in the X direction are provided on the X-direction rod body above the hoist. A second guide wheel for guiding the steel wire rope guided by the first guide wheel in the Z direction is provided on the Z-direction rod body. A third guide wheel for guiding the steel wire rope guided by the second guide wheel downward is provided on one side of the second guide wheel. An auxiliary guide wheel for assisting the third guide wheel to guide the steel wire rope downward is provided below the third guide wheel.

[0007] For the above self-dragging horizontal traversing type wind turbine blade maintenance hanging basket, protective devices for preventing the hanging basket body from colliding with the tower barrel are provided on both sides of the hoist.

[0008] For the above self-dragging horizontal traversing type wind turbine blade maintenance hanging basket, the protective device includes cross bars arranged in parallel on both sides of the hoist. Two parallel inclined bars are provided on each cross bar. It further includes a support bar for connecting the inclined bars. Positioning plates are provided at both ends of the support bar. An anti-collision roller rotatably connected to the two positioning plates is provided between the two positioning plates.

[0009] The beneficial effect of the self-dragging horizontal traversing type wind turbine blade maintenance hanging basket of the present utility model is that by setting the first guide wheel, the second guide wheel, the third guide wheel and the auxiliary guide wheel to guide the steel wire rope on the hoist in the X direction, the Z direction and downward. When adjusting the horizontal traversing position, the maintenance personnel can independently control the hoist provided on the side of the hanging basket body to take in and release the steel wire rope, cooperate with the hoist in the nacelle to take in and release, and adjust the horizontal traversing position of the hanging basket body, without the need to communicate with the ground personnel, improving the accuracy and timeliness of the operation, reducing the labor intensity of the ground personnel, and enhancing the maintenance operation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is a schematic diagram of the working state of the present utility model;

[0011] Figure 2 is a schematic diagram of the structure of the hoist arranged on the hanging basket body. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0012] The following will describe the present utility model in detail with reference to specific embodiments.

[0013] As Figure 1-2As shown in the figure, the self-dragging horizontal traversing type wind turbine blade maintenance hanging basket includes a hanging basket body 1. A hoist 2 is provided on the side of the hanging basket body 1. A steel wire rope 14 with one end fixedly connected to the ground is provided on the hoist 2. A plurality of first guide wheels 4 for guiding the steel wire rope on the hoist 1 in the X direction are provided on the X-direction rod body 3 above the hoist 1. A second guide wheel 6 for guiding the steel wire rope guided by the first guide wheel 4 in the Z direction is provided on the Z-direction rod body 5. A third guide wheel 7 for guiding the steel wire rope guided by the second guide wheel 6 downward is provided on one side of the second guide wheel 6. An auxiliary guide wheel 8 for assisting the third guide wheel 7 to guide the steel wire rope downward is provided below the third guide wheel 7. The hoist 2 is a rope-releasing type hoist. The advantages of the rope-releasing type hoist are as follows: This hoist has an electromagnetic braking system and can stop at any position. This hoist is equipped with a manual clutch. In case of a power failure, the clutch can be manually disengaged to control the hoist to release the rope and return to the ground state.

[0014] Protective devices for preventing the hanging basket body 1 from colliding with the tower barrel 15 are provided on both sides of the hoist 2. The protective device includes cross bars 9 arranged in parallel on both sides of the hoist 1. Two parallel inclined bars 10 are provided on each cross bar 9. It also includes a support bar 11 for connecting the inclined bars 10. Positioning plates 12 are provided at both ends of the support bar 11. An anti-collision roller 13 rotatably connected to the two positioning plates 12 is provided between the two positioning plates 12. The anti-collision roller 13 can be made of rubber material.

[0015] By setting the first guide wheel, the second guide wheel, the third guide wheel and the auxiliary guide wheel, the steel wire rope on the hoist is guided in the X direction, the Z direction and downward. When adjusting the horizontal traversing position, the maintenance personnel can independently control the hoist provided on the side of the hanging basket body to take in and release the steel wire rope, and cooperate with the hoist in the nacelle to take in and release: First, raise the hanging basket to the same altitude position as the blade to be maintained, and then adjust the horizontal traversing position of the hanging basket body by taking in and releasing the steel wire rope through the hoist provided on the side of the hanging basket body, so as to shorten the distance between the hanging basket and the blade, making it convenient for the staff in the hanging basket to maintain the wind turbine blade. This process does not require communication between the maintenance personnel in the hanging basket and the ground personnel, avoiding information transmission errors that may be caused by poor communication between the maintenance personnel and the ground personnel, such as inaccurate transmission of work instructions, safety precautions, etc., thus increasing the operation risk and improving the maintenance operation efficiency.

[0016] In addition, operating a manual hoist requires certain professional skills and experience. Precise control and coordination are needed during operation. If the operator lacks skills, the risk of operation errors may increase. Once the operation is improper, the position of the hanging basket may become unstable, increasing the safety risk for workers during high-altitude operations. Moreover, due to the limited operation precision and stability of the manual hoist, sudden movement or shaking of the hanging basket may be caused by operation errors, scaring or injuring the workers. Also, the operation of the manual hoist is relatively cumbersome, consuming more time and manpower. And the manual hoist needs to be regularly inspected and maintained to ensure its normal operation, which increases the maintenance cost. This application realizes the centralized control of the horizontal translation and up-and-down lifting of the hanging basket body. There is no need for ground personnel to control the manual hoist to adjust the horizontal position of the hanging basket body, avoiding the drawbacks of manual hoist operation. And the automatic and rapid horizontal translation of the hanging basket body is realized, which is particularly important for situations where the operation position needs to be frequently changed or emergency repairs are required. The automatic horizontal translation function enables the hanging basket body to move flexibly on the blade surface. Whether it is for blade inspection, cleaning or more complex repair work, this moving ability greatly improves the work efficiency. Also, the operator can adjust according to the required maintenance position, and can more accurately locate the specific position where the operation is needed, improving the accuracy and timeliness of the operation.

[0017] Certainly, the above description is not a limitation of the present utility model, nor is the present utility model limited to the above examples. Changes, modifications, additions or substitutions made by those of ordinary skill in the art within the essence of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A self-drag horizontally movable wind turbine blade maintenance hanging basket, comprising a hanging basket body, characterized in that: A hoist is provided on the side of the hanging basket body, and a steel wire rope with one end fixedly connected to the ground is provided on the hoist; a plurality of first guide wheels for guiding the steel wire rope on the hoist in X direction are provided on the X-direction rod body above the hoist; a second guide wheel for guiding the steel wire rope guided by the first guide wheel in Z direction is provided on the Z-direction rod body; a third guide wheel for guiding the steel wire rope guided by the second guide wheel downward is provided on one side of the second guide wheel; and an auxiliary guide wheel for assisting the third guide wheel in guiding the steel wire rope downward is provided below the third guide wheel.

2. The self-drag horizontally movable wind turbine blade maintenance hanging basket according to claim 1 is characterized in that: Protective devices are provided on both sides of the hoist to prevent the hanging basket body from colliding with the tower.

3. The self-drag horizontally movable wind turbine blade maintenance hanging basket according to claim 2 is characterized in that: The protective device includes cross bars arranged in parallel on both sides of the elevator, each cross bar is provided with two parallel inclined rods, and also includes support rods for connecting the inclined rods, positioning plates are provided at both ends of the support rods, and an anti-collision roller rotatably connected to the two positioning plates is provided between the two positioning plates.

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