CN-120969098-B - Multifunctional hanging basket system for blade tip maintenance of fan blade and maintenance method thereof

CN120969098BCN 120969098 BCN120969098 BCN 120969098BCN-120969098-B

Abstract

The invention discloses a multifunctional hanging basket system for blade tip maintenance of a fan blade and a maintenance method thereof, wherein the hanging basket system comprises a hanging basket, pulleys, a main winch, a plurality of winch driving mechanisms and a plurality of auxiliary winches, wherein the pulleys are arranged on a wind power tower; the auxiliary windlass is connected with the hanging basket after passing through the pulley, each auxiliary windlass is respectively and slidably arranged on a guide rail, the rope of each auxiliary windlass is respectively connected with the hanging basket, a notch is formed in the hanging basket, each winch driving mechanism is respectively connected with one auxiliary windlass, a positioning strip and a limiting plate are arranged on the hanging basket, a row of limiting holes are formed in the limiting plate, a first binocular depth camera is arranged on the hanging basket and used for obtaining the distance between the blade tip and each limiting hole, and the main windlass and the auxiliary windlass are convenient to control the hanging basket to move in a matched mode so that the blade tip of the blade enters one of the limiting holes. The invention can accurately control the movement of the hanging basket, ensure that the blade tip can accurately enter the limiting hole, and realize the stable fixation of the hanging basket and the blade.

Inventors

Gu tiansheng
ZHAO YUXIN
FENG RUI
CHEN JIANYE
WU WENTAO
GUO LIJUN
Wu Daixi
Liao Zhongsu
ZHANG WANFU
XUE YIN

Assignees

武汉迪特聚能科技有限公司

Dates

Publication Date: 20260512
Application Date: 20250828

Claims (9)

1. A multi-functional hanging flower basket system for apex dimension of fan blade examines, its characterized in that includes hanging flower basket, pulley, main hoist engine, a plurality of hoist engine actuating mechanism and a plurality of auxiliary hoist engine, wherein: The pulley is arranged on the wind power tower; The ropes of the main winches are connected with the hanging basket after bypassing the pulleys and used for driving the hanging basket to lift, each auxiliary winch is respectively and slidably arranged on a guide rail, the ropes of each auxiliary winch are respectively connected with the hanging basket, and a notch for accommodating a blade is formed in the hanging basket; Each winch driving mechanism is respectively connected with an auxiliary winch for driving the auxiliary winches to slide on the guide rail, so that the auxiliary winches are matched with the main winch to drive the hanging basket to move, and the blades in a stop state with the tips facing downwards enter the notch; the positioning strips are arranged at positions corresponding to the notches, so that the positioning strips abut against the side edges of the blades to realize preliminary positioning of the hanging basket; The hanging basket is provided with a limiting plate at a position corresponding to the notch, a row of limiting holes are formed in the limiting plate, and each limiting hole is located below the blade; The hanging basket is provided with a first binocular depth camera which is used for obtaining the distance between the blade tips of the blades and each limiting hole on the limiting plate and transmitting the distance to the controller, so that the controller controls the main winch, the auxiliary winch and the winch driving mechanism to drive the hanging basket to move in a matched mode, the blade tips of the blades enter one of the limiting holes and the upper edges of the limiting holes are pressed against the blade tips of the blades, and further the fixed connection between the hanging basket and the blades is realized by the fact that the upper edges of the positioning strips and the limiting holes are abutted against the two side edges of the blades; the limiting plates are provided with a plurality of pressure sensors at positions corresponding to each limiting hole, and the pressure sensors are used for detecting whether the upper edges of the limiting holes are pressed against two side edges of the blade.
2. The multifunctional hanging basket system for blade tip maintenance of the fan blade according to claim 1, wherein the hanging basket is provided with a blade clamping mechanism, the blade clamping mechanism is two electric push rods which are oppositely arranged, and each electric push rod is provided with a pressing block which is used for being contacted with the blade, so that the two electric push rods are contacted with the windward side and the leeward side of the blade to be matched with and clamp the blade, and the blade deflection in the maintenance process is prevented.
3. The multifunctional basket system for tip inspection of a fan blade of claim 1 further comprising an inspection robot and an inspection tool disposed on the basket, the inspection robot having a second binocular depth camera, a multi-axis robotic arm, and a dexterous hand mounted on the multi-axis robotic arm such that the inspection robot operates the inspection tool to inspect the blade.
4. A multifunctional hanging basket system for tip maintenance of a fan blade according to claim 3 wherein the maintenance tool is placed on the hanging basket and comprises a hole opener and a camera, wherein the hole opener is used for cutting a window on the blade under the holding of a dexterous hand, and the camera is used for shooting images from the window into the blade under the driving of the dexterous hand so as to confirm whether the lightning receptor is normally connected with the lightning protection wire.
5. A multifunctional basket system for tip inspection of a fan blade according to claim 3 wherein the inspection tool further comprises a drilling rig placed on the basket for drilling holes in the drainage holes of the tip of the blade under the grip of a dexterous hand for dredging the drainage holes.
6. A multifunctional hanging basket system for tip inspection of fan blades according to claim 3 wherein the inspection tool further comprises a cleaning module placed on the hanging basket for spraying and brushing the surface of the flash vessel under the grip of a dexterous hand to clean oil stains, and the cleaning module comprises a body and a spraying device mounted on the body, an electric brush tray and a recovery tank, the spraying device being located in the brush head of the electric brush tray and having dual spray heads, one of the spray heads being for spraying a cleaning agent on the flash vessel, the electric brush tray being for brushing the flash vessel sprayed with the cleaning agent, the other spray head being for spraying clear water on the blades to clean the flash vessel brushed by the electric brush tray, and the recovery tank being for receiving sewage.
7. A multifunctional basket system for tip inspection of a fan blade as recited in claim 3, wherein the inspection tool further comprises a sanding detection module placed on the basket for sanding and resistance testing the flash under the grip of a dexterous hand.
8. The multifunctional hanging basket system for tip maintenance of a fan blade according to claim 1, wherein the limiting plate is provided with a V-shaped part with an upward opening, and a row of limiting holes are arranged at the bottom of the V-shaped part.
9. The maintenance method of a multifunctional basket system for the tip maintenance of a fan blade according to any one of claims 1 to 8, characterized by comprising the steps of: 1) Starting a braking device of the fan to stop the rotation of the blades, so that the tip of one blade of the fan faces downwards; 2) The main winch drives the hanging basket to ascend, and the rear lower part of the blade with the downward blade tip moves to the notch for the blade to enter the hanging basket and the blade is abutted with the positioning strip; 3) The first binocular depth camera obtains the distance between the blade tip of the blade and each limiting hole and transmits the distance to the controller, and the controller controls the main winch, the plurality of winch driving mechanisms and the plurality of auxiliary winches to work so as to enable the hanging basket to move, enable the blade tip of the blade to extend into the limiting holes of the limiting plates, enable the upper edges of the limiting holes to be pressed on two side edges of the blade and enable the positioning strips to be kept in contact with one side edge of the blade; 4) Starting a blade clamping device on the hanging basket, wherein pressing blocks on two electric push rods oppositely arranged on the blade clamping device are contacted with a windward side and a leeward side of the blade to clamp the blade, so that the blade is prevented from shaking during maintenance operation; 5) Starting a maintenance robot on the hanging basket, and enabling a multi-shaft mechanical arm of the maintenance robot to drive a dexterous hand to move, and enabling the dexterous hand to hold a maintenance tool to carry out maintenance on the blade; 6) After the maintenance of one blade with the downward blade tip is completed, the main winch, the plurality of winch driving mechanisms and the plurality of auxiliary winches work to enable the hanging basket to descend below the blade with the maintenance completed; 7) Releasing the braking of the braking device of the fan on the blade to enable the blade of the fan to continue to rotate; 8) Repeating the steps 1) to 7) until the maintenance of all blades of the fan is completed; 9) The main winch, the plurality of winch driving mechanisms and the plurality of auxiliary winches operate to lower the basket and return the basket to the ground.

Description

Multifunctional hanging basket system for blade tip maintenance of fan blade and maintenance method thereof Technical Field The invention belongs to the field of fan blade maintenance tools, and particularly relates to a multifunctional hanging basket system for fan blade tip maintenance and a maintenance method thereof. Background When wind power generation rapidly develops, the running condition of the fan blade has a crucial influence on the efficient and stable running of the whole wind power system. The performance of the fan blade, which is one of the key components of the wind generating set, directly determines the efficiency and safety of wind power generation. However, during long-term operation, fan blades face a number of complex problems and serious challenges, wherein the problem of oxidation of the lightning receptor is particularly remarkable, which seriously threatens the safe operation and the power generation efficiency of the fan. Fans face a high risk of lightning strikes due to factors such as their location typically in the open and their height. As a part which is easy to be struck by lightning on the fan, the blade tip lightning receptor is connected and disconnected with the blade lightning protection lead wire in the aging and corrosion processes of the lightning receptor and the long-term operation process, and the like, the lightning protection system can fail, so that the unit fault can be caused, and huge economic loss and potential safety hazard are caused. In recent years, fan fault accidents caused by the problem of the lightning receptor are frequent, and related accident cases and increasingly strict policy regulations highlight the necessity of detecting and maintaining the lightning receptor regularly. The lightning arrester is ensured to be in good contact, and the lightning arrester has extremely important significance for ensuring the safe and stable operation of the fan and improving the power generation benefit. With the continuous development of unmanned aerial vehicle technology and robots, unmanned aerial vehicle or wall climbing robots are adopted to replace manual work to carry out maintenance work such as oxidation polishing of the lightning receptor. However, unmanned aerial vehicles and wall climbing robots are difficult to fix on fan blades stably and reliably. The unmanned aerial vehicle mainly depends on flying or adsorption force, and factors such as complex shape, surface characteristics, high air flow disturbance and the like of the fan blades can greatly increase the control difficulty of the unmanned aerial vehicle, and the adsorption capacity of the wall climbing robot is also obviously influenced. In particular, unmanned aerial vehicles can be difficult to maintain stable hover due to the air flow complexity of the blade surfaces in a fan blade environment, and smooth surfaces of the blades are difficult to provide adequate adhesion. The wall climbing robot is unstable in adsorption and limited in movement due to factors such as curved surface shape, surface coating and surface irregularity of the blade. The influence of the instability on the maintenance work is mainly characterized in that high-precision maintenance work cannot be performed, such as drilling, polishing and the like, which requires accurate force application, any shake can reduce the operation precision and even damage the surface of a blade, the influence of high-altitude wind disturbance and the surface characteristics of the blade can easily cause the interruption or the error of the maintenance work, the maintenance efficiency is reduced, and the maintenance work cannot be stably performed for a long time, so that the application range of the maintenance is limited. In addition, unmanned aerial vehicle is close to the blade when examining in the dimension, because its volume is less, and the operating space between the blade is very limited, is difficult to carry out complicated dimension and examines the operation, and unmanned aerial vehicle carried equipment and instrument also receive the restriction, and many dimensions are examined the function and can't be realized, can't satisfy the complicated dimension of blade and examine the demand. Although the wall climbing robot can move on the surface of the blade, the wall climbing robot is attached to the blade, and then the wall climbing robot is also faced with the problem that the operation space between the wall climbing robot and the blade is limited. In addition, the wall climbing robot has smaller body size and limited carrying capacity, cannot carry various maintenance tools and equipment, and is difficult to complete complicated maintenance work on the blades. Disclosure of Invention Aiming at the defects or improvement demands of the prior art, the invention provides a multifunctional hanging basket system for blade tip maintenance of a fan blade and a maintenance method thereof, which can facilitate multi-directio