WO2024051006A1 - Blade maintenance platform - Google Patents

Abstract

The present invention relates to the technical field of blade maintenance devices. Provided is a blade maintenance platform. The blade maintenance platform comprises a suspended platform assembly and a retractable assembly, the suspended platform assembly comprising a first suspended platform and a second suspended platform. The first suspended platform is suitable for being hoisted by a pulling member so as to move in the first direction, and the second suspended platform is movably connected to at least one side of the first suspended platform and is suitable for moving in the second direction, the second direction and the first direction having an included angle therebetween. The retractable assembly is arranged at the bottom of the first suspended platform and is suitable for retractable movement in the third direction, the third direction having included angles with the first direction and the second direction. The maintenance platform provided by the present invention can move in multiple directions so as to accurately position a maintenance position for maintenance operation, thus achieving convenient use and more comprehensive maintenance. Meanwhile, the maintenance platform can be transported as a whole, thereby eliminating the need to disassemble the maintenance platform before transportation and reassemble same after being transported to a destination, and further improving the maintenance efficiency.

Description

Blade inspection platform

This application claims priority to the Chinese patent application with application number 202211105005.1 and the invention name "Blade Maintenance Platform" submitted on September 9, 2022, the entire content of which is incorporated into this application by reference.

Technical field

The present invention relates to the technical field of blade maintenance devices, and in particular to a blade maintenance platform.

Background technique

At present, the power generation capacity of wind turbines is increasing. The main components of wind turbines to capture wind energy are blades. The blades need to rotate around the axis of the generator for a long time, and they need to operate in harsh conditions such as strong winds, exposure to the sun, high temperature differences, and lightning bombardments. operate in the natural environment. Therefore, after the blades have been running for a period of time, they need to be repaired and maintained through the maintenance platform.

Due to the large size of the currently used maintenance platform, the maintenance platform needs to be disassembled into multiple parts for transportation. After arriving at the wind farm that needs maintenance, the multiple disassembled parts must be assembled. Disassembly and assembly are time-consuming and laborious. Very inconvenient to use.

Contents of the invention

The invention provides a blade maintenance platform to solve at least one technical defect in the prior art. It is easy to use. The blade maintenance platform can be transported as a whole, eliminating the need to disassemble the maintenance platform before transportation and the need to disassemble the maintenance platform after transportation to the destination. Re-installation of the maintenance platform can improve maintenance efficiency.

The invention provides a blade maintenance platform, which includes:

A hanging basket assembly, the hanging basket assembly includes a first hanging basket and a second hanging basket, the first hanging basket is suitable for lifting by a traction member, so that the first hanging basket moves along the first direction; the second hanging basket The hanging basket is movably connected to at least one side of the first hanging basket and is adapted to move in a second direction, and the second direction and the first direction are arranged at an angle to each other;

Telescopic assembly, the telescopic assembly is arranged at the bottom of the first hanging basket and is suitable for telescopic movement in a third direction, the third direction forms an angle with the first direction and the second direction. set up.

According to the blade maintenance platform provided by the present invention, a guide component is provided between the first hanging basket and the second hanging basket, and the guide component is suitable for the second hanging basket to move in the second direction;

The guide component includes matching guide parts and matching parts;

The guide member is provided on either one of the first hanging basket and the second hanging basket; the fitting member is provided on the other of the first hanging basket and the second hanging basket.

According to the blade maintenance platform provided by the present invention, the arrangement form of the guide component includes any of the following:

The guide part is a guide rail, and the matching part is at least one of a guide pulley and a guide slider;

The guide member includes a guide rail body with guide grooves along its extension direction and a rack connected to one side of the guide rail body. The matching member includes a guide pulley that cooperates with the guide groove, and a guide pulley that matches the guide groove. meshing gears or rollers;

The guide part is a guide rod, and the matching part is a collar sleeved on the guide rod.

According to the blade maintenance platform provided by the present invention, the guide component is provided at the bottom of the first hanging basket and the second hanging basket;

Alternatively, the guide component is provided on the top of the first hanging basket and the second hanging basket;

Alternatively, the guide component is provided on the side of the first hanging basket and the second hanging basket.

According to the blade inspection platform provided by the present invention, an anti-separation component is further provided between the first hanging basket and the second hanging basket, and the anti-separation component is adapted to prevent the second hanging basket from being removed from the guide component. prolapse;

The anti-detachment component includes an anti-detachment hook, the anti-detachment hook includes an anti-detachment body and a hook body, the anti-detachment body is fixed on either one of the first hanging basket and the second hanging basket; the hook body Hanging on the other one of the first hanging basket and the second hanging basket.

According to the blade inspection platform provided by the present invention, the anti-detachment component further includes a wear-resistant plate, and the wear-preventive plate is provided between the anti-detachment hook and the basket of the second hanging basket;

A limiting pin is provided on at least one of the anti-wear plate and the anti-detachment hook, and a plurality of limit holes are provided on the basket connected to the second hanging basket and the anti-wear plate or the anti-detachment hook. The limit pin is inserted into any of the limit holes.

According to the blade inspection platform provided by the present invention, the telescopic assembly includes a telescopic arm and a positioning component. The positioning component is connected to one end of the telescopic arm and is suitable for contacting the outer wall of the wind turbine tower. The telescopic arm is suitable for moving along the The third direction drives the first hanging basket to move.

According to the blade inspection platform provided by the present invention, the telescopic arm includes a telescopic body and a telescopic component disposed inside the telescopic body, the positioning component is connected to one end of the telescopic component, and the first hanging basket is disposed on on the telescopic body.

According to the blade maintenance platform provided by the present invention, the positioning component includes:

Positioning arm. The positioning arm includes a positioning arm body and a positioning extension part. The positioning extension part is movably connected with the positioning arm body and is suitable for switching between an unfolded state and a folded state. The positioning arm body has a Provided with at least one first positioning wheel;

The first movable arm is fixedly connected to the positioning extension and forms an included angle with the positioning extension. The first movable arm is provided with at least one second positioning wheel.

According to the blade maintenance platform provided by the present invention, the positioning component further includes:

a second movable arm, the second movable arm is movably connected to the first movable arm, and at least one adsorption member is movably connected to the second movable arm;

A driving member, the first end of the driving member is fixedly connected to the positioning extension, and the second end of the driving member is movably connected to the second movable arm.

In the blade maintenance platform provided by the present invention, the second hanging basket is movably connected to at least one side of the first hanging basket, and the telescopic assembly is arranged at the bottom of the first hanging basket, so that the first hanging basket can be pulled by the traction member. Under the action of the telescopic component, the entire hanging basket assembly is driven to move in the first direction to reach a suitable maintenance height; at the same time, the first hanging basket is driven by the telescopic component to drive the entire hanging basket assembly to move in the third direction to reach a suitable maintenance height. position; the second hanging basket can move along the second direction to reach the accurate inspection position to conduct more comprehensive inspection of the blades, which is easy to use. At the same time, the blade inspection platform can be transported as a whole, eliminating the need to disassemble the inspection platform before transportation. , the maintenance platform needs to be reinstalled after transportation to the destination, which can improve maintenance efficiency.

Description of the drawings

In order to explain the present invention or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are of the present invention. For some embodiments of the invention, those of ordinary skill in the art can also obtain other drawings based on these drawings without exerting creative efforts.

Figure 1 is a schematic structural diagram of the blade maintenance platform provided by the present invention;

Figure 2 is a schematic structural diagram of the hanging basket assembly in the blade maintenance platform provided by the present invention;

Figure 3 is an enlarged view of part A in Figure 2;

Figure 4 is an enlarged view of part B in Figure 2;

Figure 5 is a front view of the blade maintenance platform provided by the present invention;

Figure 6 is a top view of the blade maintenance platform provided by the present invention;

Figure 7 is a schematic structural diagram of the positioning component in the blade maintenance platform provided by the present invention;

FIG. 8 is an enlarged view of part C in FIG. 7 .

Reference signs:

10. The first hanging basket; 11. The first load-bearing platform; 12. The first guardrail; 121. The first frame; 1211. The horizontal frame; 1212. The vertical frame; 1213. Reinforcement part; 122. The second frame; 123. connector;

20. Second hanging basket; 21. Second load-bearing platform; 22. Second protective fence; 221. Protection body; 222. Door body; 223. Limit hole;

30. Guide parts; 31. Guide rails;

40. Fitting parts; 41. Pulley bracket; 42. Guide pulley;

50. Anti-detachment parts; 51. Anti-detachment hook; 511. Anti-detachment body; 512. Hook body; 52. Anti-wear plate; 53. Limit pin;

60. Anti-wear parts; 61. Anti-wear roller; 62. Anti-wear bracket;

70. Lifting point device;

80. Guide wheel assembly;

90. Telescopic arm; 91. Telescopic body; 92. Telescopic parts;

100. Positioning component; 101. Positioning arm; 1011. Positioning arm body; 1012. Positioning extension; 102. First positioning wheel; 103. Second positioning wheel; 104. Driving member; 105. Adsorption member; 106. First positioning wheel Movable arm; 107, second movable arm; 108, connecting arm; 109, positioning plate; 1091, first positioning hole; 1092, second positioning hole; 110, first mounting bracket; 111, second mounting bracket;

Z, first direction; X, second direction; Y, third direction.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present invention more clear, the technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention. , not all examples. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly stated and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. Or integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood in specific situations.

In the embodiment of the present invention, unless otherwise expressly provided and limited, the first feature "on" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in intermediate contact. Indirect media contact. Furthermore, the terms "above", "above" and "above" the first feature is above the second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "below" and "beneath" the first feature to the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature has a smaller horizontal height than the second feature.

In the description of this specification, reference to the terms "one embodiment," "some embodiments," "an example," "specific examples," or "some examples" or the like means that specific features are described in connection with the embodiment or example. , structures, materials or features are included in at least one embodiment or example of embodiments of the present invention. In this specification, the schematic expressions of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and combine different embodiments or examples and features of different embodiments or examples described in this specification unless they are inconsistent with each other.

Embodiments of the present invention will be described below with reference to FIGS. 1 to 8 . It should be understood that the following description is only an illustrative embodiment of the present invention and does not constitute any limitation to the present invention.

Referring to Figures 1 to 4, the blade inspection platform provided by the embodiment of the present invention includes a hanging basket assembly and a telescopic assembly. The hanging basket assembly includes a first hanging basket 10 and a second hanging basket 20. The first hanging basket 10 is suitable for lifting by a traction component, so that the first hanging basket 10 can move up and down along the first direction Z; the second hanging basket 20 is movably connected to At least one side of the first hanging basket 10 is suitable for reciprocating movement along the second direction X. The second direction X and the first direction Z are arranged at an angle to each other, that is, the second direction X and the first direction Z can be They are perpendicular to each other, or there is a certain angle between them, but the angle between them does not include 0° and 180°, that is, the second direction X and the first direction Z will not be collinear or parallel.

The telescopic component is arranged at the bottom of the first hanging basket 10 and is used to carry the hanging basket assembly. The telescopic component can telescopically move along the third direction Y. The third direction Y is set at an angle to the first direction Z and the second direction X. This is equivalent to the hanging basket component being able to move along three different directions to accurately Arrive at the location where maintenance is required.

The first hanging basket 10 can be used as the main carrying basket and the carrier for installing the control system and power system of the maintenance platform. Workers can operate the control system in the first hanging basket 10 to realize the operation of the maintenance platform. At the same time, the first hanging basket 10 can also be used as an inspection hanging basket for workers to use to inspect the blades.

The second hanging basket 20 can be used as the main maintenance hanging basket for workers to stand and inspect the blades of the wind turbine. When the staff operates the control system to make the first hanging basket 10 drive the second hanging basket 20 to the appropriate maintenance height. , the staff can push the second hanging basket 20 to slide relative to the first hanging basket 10, that is, the second hanging basket 20 moves back and forth along the second direction X, so that the second hanging basket 20 reaches the appropriate maintenance position. At this time, the work Personnel can enter the second hanging basket 20 from the first hanging basket 10 to carry out maintenance work on the blades.

It can be understood that in the present invention, the second hanging basket 20 is movably connected to at least one side of the first hanging basket 10 and the telescopic assembly is arranged at the bottom of the hanging basket assembly, so that the first hanging basket 10 can be pulled by the traction member. Under the action of pulling, the entire hanging basket assembly is driven to move along the first direction Z to reach a suitable maintenance height. At the same time, under the action of the telescopic component, the first hanging basket 10 drives the entire hanging basket assembly to move along the third direction Y to reach a suitable maintenance height. Reach the appropriate inspection position; the second hanging basket 20 can move along the second direction X to reach the accurate inspection position, and perform more comprehensive inspection of the blades, which is easy to use.

The currently used inspection platform can inspect the blades, but the inspection platform is large in size. Therefore, during transportation, the inspection platform needs to be disassembled into multiple parts for transportation. After transportation to the maintenance wind farm, it must be assembled by skilled staff. , each maintenance platform requires about four people to assemble, and the assembly time is generally more than 2 hours, which is time-consuming and labor-intensive.

In the present invention, when the hanging basket assembly needs to be transported and transferred, it is only necessary to move the second hanging basket 20 along the second direction X so that the first hanging basket 10 is located in the middle of the second hanging basket along the second direction X. The hanging basket assembly is transported as a whole, and there is no need to disassemble and install the hanging basket assembly, which reduces the time of installing and adjusting the maintenance platform, making it more convenient to use, saving time and effort.

Moreover, in the present invention, the control system and the power system can be arranged in the first hanging basket 10. Therefore, when workers perform maintenance in the second hanging basket 20, they can avoid accidentally touching the control buttons, which may lead to accidents. The safety of the maintenance platform can be further improved.

It should be noted that the traction parts can be any traction parts used for hoisting, which can withstand tension and have properties such as tensile resistance, bending resistance, torsion resistance, shear resistance, etc., such as steel wire ropes, hemp ropes, chains, etc. The first direction Z can be understood as the moving direction of the traction member.

It should also be noted that the second hanging basket 20 is movably connected to at least one side of the first hanging basket 10 , that is, the second hanging basket 20 can be movably connected to the first side of the first hanging basket 10 along the third direction Y, also It can be movably connected to the second side of the first hanging basket 10 along the third direction Y. In order to maintain balance on both sides of the first hanging basket 10, the second hanging basket 20 can also be movably connected to the first side of the first hanging basket 10 along the third direction Y and the second side of the first hanging basket 10 along the third direction Y at the same time. Second side.

Example 1:

Referring to Figures 1 to 6, as an embodiment of the present invention, in the blade maintenance platform provided in this embodiment, the hanging basket assembly includes a first hanging basket 10 and a second hanging basket 20. A guide part and a fall-off prevention part 50 are provided between the hanging baskets 20. The guide part can make the second hanging basket 20 reciprocate along the second direction X. The anti-falling part 50 can prevent the second hanging basket 20 from detaching from the guide part or come out.

As shown in Figure 1, the first hanging basket 10 includes a first hanging basket body, which can be understood as a suspension platform driven by a lifting mechanism to serve as a working platform for workers. The first hanging basket body includes a first bearing platform 11 and a first guardrail 12. The first bearing platform 11 may be a rectangular platform with a first side and a second side along its width direction (along the second direction X). The first guardrail 12 includes a first frame 121 and a second frame 122. The first frame 121 can be fixedly connected to the first side of the first load-bearing platform 11 through fasteners such as bolts and pins. The second frame 122 can be fixedly connected to the first side of the first load-bearing platform 11 through bolts. , pins and other fasteners are fixedly connected to the second side of the first bearing platform 11 .

When a worker stands on the first bearing platform 11, the first frame 121 and the second frame 122 can protect the worker and prevent the worker from accidentally falling and other safety accidents.

As shown in FIG. 1 , the first load-bearing platform 11 has a first end and a second end along its length direction (along the third direction Y), and the second hanging basket 20 can be symmetrically disposed at the first end and the second end of the first load-bearing platform 11 . The second end, that is, the second hanging basket 20 is installed at both ends of the first load-bearing platform 11, which is equivalent to the first frame 121, one of the second hanging baskets 20, the second frame 122 and the other of the second hanging baskets. The baskets 20 are arranged in sequence along the circumferential direction of the first carrying platform 11 .

As shown in Figures 1 and 5, the second hanging basket 20 includes a second hanging basket body. The second hanging basket body has a similar function to the first hanging basket body. The second hanging basket body includes a second carrying platform 21 and a second hanging basket body. The protective fence 22 and the second protective fence 22 are arranged around the second carrying platform 21 .

In order to facilitate workers to enter the second hanging basket 20 from the first hanging basket 10, a door 222 is also provided. The door 222 can be opened and closed on the side of the second hanging basket body facing the first hanging basket body. That is to say, the second guardrail 22 includes a guard body 221 and a door body 222. The door body 222 can be rotatably connected to the guard body 221 through hinges such as hinges or pins. In addition, the door body 222 can also be locked by locking parts such as lock pins. The door body 222 can be provided with one or more doors, and the plurality of door bodies 222 can be arranged oppositely or at intervals.

As shown in Figures 1 to 3, the guide component includes a guide part 30 and a matching part 40 that cooperate with each other to achieve sliding connection. The guide part 30 can be a guide rail 31. The guide rail 31 can be composed of channel steel, angle steel, bent parts or welded parts. . When the guide rail 31 is made of channel steel, it can be fixed to the side of the second load-bearing platform 21 facing the first load-bearing platform 11 through fasteners such as countersunk bolts.

As shown in FIG. 2 , the fitting part 40 is installed corresponding to the position of the guide rail 31 , and the fitting part 40 is correspondingly arranged on the first carrying platform 11 or the first guardrail 12 . The matching piece 40 includes a pulley bracket 41 and a guide pulley 42. The pulley bracket 41 can be fixedly connected to the first load-bearing platform 11 or the first guardrail 12 through fasteners such as bolts. The guide pulley 42 is rotatably connected to the pulley bracket 41.

The guide pulley 42 can be replaced by a guide slide block, or the guide pulley 42 and the guide slide block can be arranged alternately, which can not only ensure the structural strength of the fitting 40 but also improve the movement efficiency of the guide rail 31 .

Of course, the guide rail 31 can also be fixed on the side of the first load-bearing platform 11 facing the second load-bearing platform 21 through fasteners such as countersunk bolts. Correspondingly, the matching piece 40 is installed on the second load-bearing platform 21 corresponding to the position of the guide rail 31 Or on the second guardrail 22.

In this embodiment, in order to make the guide rail 31 more rigid, two guide chute can be constructed side by side on the guide rail 31. Correspondingly, two guide pulleys 42 matching the guide chute are installed on the pulley bracket 41. The two guide pulleys 42 can be arranged side by side or offset. One of the two guide pulleys 42 can be used as a guide wheel, and the other can be used as an anti-separation wheel. When one of the guide pulleys 42 is used as an anti-separation wheel, correspondingly, an anti-separation part is provided on the guide chute.

In this embodiment, in order to prevent the guide rail 31 from sliding out from the guide pulley 42, limiters can be provided at both ends of the guide rail 31. The limiters can be limit plates fixed at both ends of the guide rail 31, or they can be clamped on the guide rail 31. The limit block in the guide chute.

It should be noted that the installation positions of the guide component and the anti-off component 50 can be adjusted arbitrarily. For example, the guide component can be arranged at the bottom of the second hanging basket 20, and the anti-off component 50 can be hooked on the top of the second hanging basket 20.

Alternatively, the guide component may be provided on the top of the second hanging basket 20 , and the anti-detachment component 50 may be hooked on the bottom of the second hanging basket 20 .

Alternatively, the guide component can be disposed on the side of the second suspension basket 20 , that is, the guide component can be disposed between the top and the bottom of the second suspension basket 20 , and the anti-detachment component 50 can be hooked on the top of the second suspension basket 20 . or/and bottom.

As shown in FIGS. 1 and 4 , the anti-detachment component 50 includes two opposite anti-detachment hooks 51 . The anti-detachment hooks 51 can be formed by bending sheet metal, or can have hook grooves formed on the entire plate body. The anti-detachment hook 51 includes an anti-detachment body 511 and a hook body 512. The anti-detachment body 511 is installed at the ends of the first frame 121 and the second frame 122 through fasteners such as bolts; the hook body 512 is hooked or hung on the second guard. On at least one of the protective body 221 and the door body 222 of the column 22, the protective body 221 or the door body 222 can slide in the anti-separation component 50, that is, the anti-separation component 50 can play a role in preventing disengagement to limit The second hanging basket 20 is tilted outward, thereby restricting the second hanging basket 20 from being separated from the guide component, and achieving the guiding function.

Of course, the anti-off body 511 can also be installed on at least one of the protective body 221 and the door body 222. The hook body 512 can be hooked on the sliding rod extending out of the first frame 121 and the second frame 122. The sliding rod can be connected with the protective body 221. The main body 221 or the door body 222 are parallel.

In the embodiment of the present invention, the guide component and the anti-falling component 50 are provided between the first hanging basket 10 and the second hanging basket 20 to realize the movable connection between the second hanging basket 20 and the first hanging basket 10, and the structural design is simple. Easy and reliable to use.

In this embodiment, in order to improve the structural stability of the gondola assembly, a load-bearing bracket can be extended from the bottom of the first gondola 10, and a load-bearing plate or other structures for lifting the gondola assembly can be provided on the load-bearing bracket. Fitting pieces 40 are provided at both ends of the load-bearing plate along the Guide members are provided on both sides of the direction X, which is equivalent to the second hanging basket 20 being slidably connected between the two opposite guide members.

When the second hanging basket 20 needs to move along the second direction The extension direction of the guide rail 31 moves to the required inspection position, and the staff enters the second hanging basket 20 to conduct comprehensive inspection or repair of the blades.

The hanging basket assembly provided by this embodiment has a simple structure and is safe and reliable to use; the second hanging basket 20 and the first hanging basket 10 can both be composed of a steel frame and an aluminum alloy frame, which can not only reduce the weight of the structure, but also ensure the strength of the structure. , lower production costs.

As shown in Figure 5, when the second hanging basket 20 reciprocates along the second direction X, it can form a variety of arrangements with the first hanging basket 10, specifically as follows:

In the first arrangement form, when the second hanging baskets 20 at both ends of the first hanging basket 10 are symmetrical with respect to the first hanging basket 10, the first hanging basket 10 and the second hanging basket 20 together form an "I"-shaped structure. During transportation, the second hanging basket 20 can be moved to be symmetrically arranged at both ends of the first hanging basket 10 , that is to say, along the second direction X, the first hanging basket is located in the middle of the second hanging basket at both ends, ensuring that The overall stability of the structure is good.

The second arrangement form, as shown in Figure 6, when the second hanging basket 20 at the first end of the first hanging basket 10 moves in the positive direction of the second direction X, the second hanging basket 20 at the second end of the first hanging basket 10 moves By moving in the opposite direction of the second direction

In the third arrangement form, when the second hanging baskets 20 at both ends of the first hanging basket 10 move in the same direction in the second direction X, the first hanging basket 10 and the second hanging basket 20 form an approximate "C" shape. structure to form a commonly used blade maintenance platform for blade maintenance.

In the embodiment of the present invention, the positions of the second hanging basket 20 located at both ends of the first hanging basket 10 are adjusted to adapt to different usage situations and facilitate the overall transportation and use of the hanging basket assembly.

As shown in Figure 1, the telescopic assembly includes a telescopic arm 90 and a positioning component 100. The positioning component 100 is connected to one end of the telescopic arm 90 and is suitable for contacting the outer wall of the wind turbine tower. The telescopic arm 90 is suitable for driving the crane along the third direction Y. Basket assembly moves.

Equivalently, the positioning component 100 first hugs the outer wall of the wind turbine tower to position the entire blade maintenance platform, and then controls the extension of the telescopic arm 90 to drive the hanging basket assembly away from the outer wall of the wind turbine tower and move toward the tip of the wind turbine to fit the wind turbine. Blade inspection at any position between the blade tip and the wind turbine tower.

Specifically, the telescopic arm 90 includes a telescopic body 91 and a telescopic component 92 disposed in the telescopic body 91. The telescopic body 91 can be understood as a carrier, that is, a shell, that protects and carries the telescopic component 92. The positioning component 100 is connected to At one end of the telescopic component 92, the first hanging basket 10 is disposed on the telescopic body 91.

Among them, the telescopic component 92 can be one of a ladder and a telescopic guide rail, and can be any telescopic structure that can realize telescopic movement so that the hanging basket body moves along the third direction Y. When the telescopic component 92 is a telescopic guide rail, multiple guide rails 31 are nested together, and the telescopic body 91 is fixedly connected to the outermost guide rail 31 (the side away from the positioning component 100 is the outer side). A hoist is installed on the first end of the telescopic guide rail and is located on the telescopic body 91. The wire rope released by the hoist is connected to the second end of the telescopic guide rail. A plurality of hoists are arranged between the first end and the second end of the telescopic guide rail. The pulley and the steel wire rope pass through multiple pulleys in sequence, and the steel wire rope is winched and retracted to realize the expansion or retraction of the telescopic guide rail, thereby realizing the telescopic movement of the telescopic component 92.

In addition, the telescopic body 91 can be used as the above-mentioned load-bearing plate. Fitting pieces 40 are provided at both ends of the telescopic body 91, and guide rails 31 are provided at corresponding positions of the second hanging basket 20, so that both sides of the second hanging basket 20 are provided with The guide component is equivalent to the second hanging basket 20 being slidably connected between two oppositely arranged guide components to keep the second hanging basket 20 running smoothly on the guide components and the anti-detachment component 50 to effectively prevent the second hanging basket 20 from derailing. Or tilted.

As shown in Figure 7, the positioning component 100 may include a positioning arm 101, a first movable arm 106 and a driving member 104. The first movable arm 106 and the positioning arm 101 may be hinged, and the first end of the driving member 104 is fixedly connected to the positioning arm. On the arm 101, the second end of the driving member 104 is movably connected to the first movable arm 106. At least one first positioning wheel 102 is installed on the positioning arm 101 through a bracket, and at least one second positioning wheel 103 is installed on the first movable arm 106 through a bracket. The first positioning wheel 102 and the second positioning wheel 103 can be connected from multiple positions. Hold the tower wall tightly at each position to achieve positioning function.

The driving member 104 can be a push rod. By adjusting the extension length of the push rod, the first movable arm 106 is pushed to rotate around the connection point with the positioning arm 101 to change the relationship between the first movable arm 106 and the positioning arm 101. The included angle is such that the first positioning wheel 102 and the second positioning wheel 103 are in adaptive contact with the tower surface, thereby ensuring that the positioning component 100 can be positioned on wind turbine towers with different tower diameters, and has strong versatility.

As shown in Figure 7, it can be understood that the positioning arm 101 may include a positioning arm body 1011 and at least one positioning extension part 1012, that is, the positioning extension part 1012 is movably connected to one end of the positioning arm body 1011; or at one end of the positioning arm body 1011 The two ends are respectively movably connected to the positioning extension part 1012, so that the positioning extension part 1012 can be switched between the unfolded state and the folded state, thereby facilitating the use and transportation of the blade inspection platform.

Wherein, a sliding groove (not shown in the figure) can be provided at the end of the positioning arm body 1011, and a slider (not shown in the figure) that matches the sliding groove is hingedly provided at the end of the positioning extension 1012. Therefore, the positioning extension part 1012 can slide relative to the positioning arm body 1011, and the positioning extension part 1012 can be folded relative to the slider. A limiting portion may also be provided to allow the positioning extension 1012 to switch between an unfolded state and a folded state.

The first movable arm 106 and the positioning extension 1012 can be fixedly connected at a certain angle, so that the first movable arm 106 can move together with the positioning extension 1012 to switch between the unfolded state and the folded state, which facilitates the overall blade maintenance platform. transportation.

For example, the first movable arm 106 and the positioning extension 1012 can be fixedly connected at a certain angle with reference to the diameter of the tower that is frequently maintained, which is equivalent to the connection between the first positioning wheel 102 and the second positioning wheel 103 and the positioning arm body 1011 Or the angle between the positioning extensions 1012 is fixed to facilitate the use of towers that are frequently maintained.

If the diameter of other towers is larger or smaller than the diameter of the frequently maintained tower, just ensure that at least one of the first positioning wheel 102 and the second positioning wheel 103 is in contact with the surface of the tower.

In addition, a connecting arm 108 can also be provided between the first movable arm 106 and the positioning extension 1012 so that a triangle is formed between the first movable arm 106 , the positioning extension 1012 and the connecting arm 108 to increase the number of the first movable arm 106 and positioning extension 1012.

As shown in Figures 7 and 8, it can be understood that a positioning assembly is provided at the connection between the positioning extension 1012 and the positioning arm body 1011. The positioning assembly may include two positioning plates 109 arranged oppositely. The plates 109 are respectively fixed on both sides of the positioning arm body 1011. Each positioning plate 109 is provided with first positioning holes 1091 and second positioning holes 1092 corresponding to each other. The first positioning holes 1091 and the second positioning holes 1092 are mutually exclusive. They are arranged at an angle. For example, the lines connecting the first positioning holes 1091 and the second positioning holes 1092 on the two opposite positioning plates 109 are perpendicular to each other.

When the positioning extension part 1012 is in the unfolded state, the positioning extension part 1012 is limited in the first positioning hole 1091 by fasteners such as bolts. At this time, it is equivalent to the entire positioning extension part 1012 and the positioning arm body 1011 being at the same horizontal position. That is to say, it is equivalent to extending the width of the positioning arm body 1011, which is beneficial to improving the stability of the positioning component 100;

When the positioning extension part 1012 is in the folded state, the positioning extension part 1012 is fixed in the second positioning hole 1092 through fasteners such as bolts. At this time, it is equivalent to the positioning extension part 1012 as a whole and the positioning arm body 1011 being in a mutually perpendicular position. That is to say, the width of the positioning arm body 1011 is shortened, which facilitates the storage of the positioning component 100 and facilitates the transportation of the blade inspection platform.

As shown in Figure 7, the positioning component 100 also includes a second movable arm 107. The second movable arm 107 is movably connected to an end of the first movable arm 106 away from the positioning arm 101. The second end of the driving member 104 is connected to the second movable arm 107. Movably connected, at least one adsorption piece 105 is provided on the second movable arm 107 .

When the extension length of the driving member 104 increases, the driving member 104 pushes the second movable arm 107 to rotate around the connection point with the first movable arm 106 to change the relationship between the first movable arm 106 and the first movable arm 106 . The included angle is such that the adsorption member 105 can adaptively contact the tower surface, thereby ensuring that the adsorption member 105 can adsorb on wind turbine towers with different tower diameters and has strong versatility.

As shown in Figure 7, the adsorption member 105 can be installed on the second movable arm 107 through the first mounting bracket 110 and the second mounting bracket 111. The first mounting bracket 110 can be fixed to the second movable arm 107 through fasteners such as bolts. connection, the second mounting bracket 111 can be movably connected to the first mounting bracket 110, and the adsorbing member 105 is fixedly connected to the second mounting bracket 111.

After the adsorption part 105 is fixed on the second mounting frame 111, the second installation frame 111 can adaptively adjust the adsorption gap between the adsorption part 105 and the tower wall surface according to the diameter of the tower wall to lift the adsorption part 105 of versatility.

The adsorption part 105 can be any one of electromagnets, electric chucks, and rubber pads. When the adsorption part 105 is an electromagnet, the electromagnet generates magnetic force after being energized, and can be adsorbed on the outer wall of the tower to ensure the positioning component 100 The position is fixed and not easy to shake. After use, cut off the power to the electromagnet, the magnetization phenomenon disappears, and the electromagnet detaches from the outer wall of the tower.

When the adsorbing member 105 adopts an electric chuck, the working method is similar to the above-mentioned electromagnet, and will not be described again. When the adsorption part 105 uses a rubber pad, it is equivalent to increasing the friction between the positioning part 100 and the outer wall of the tower, so that the positioning part 100 cannot easily slide along the outer wall of the tower. When the positioning part 100 contacts the tower through the rubber pad, When on the outer wall, it is equivalent to adsorption between the rubber pad and the outer wall of the tower.

In this embodiment, by adjusting the extended length of the push rod, the second movable arm 107 is pushed to move, and at the same time, the second movable arm 107 drives the first movable arm 106 to move synchronously, so that the first movable arm 106 and the second movable arm 107 gathers toward the direction of the tower to hug the outer wall of the tower, ensuring that the positioning component 100 can be positioned on wind turbine towers with different tower diameters, and has strong versatility.

When the inspection platform is lifted to a suitable height along the first direction Z, the positioning component 100 is pressed against the outer wall of the wind turbine tower to provide horizontal support for the inspection platform and prevent the inspection platform from sliding during use.

Example 2:

As an embodiment of the present invention, based on the above-mentioned Embodiment 1, it is a partial alternative to the above-mentioned Embodiment 1.

In this embodiment, the guide member 30 can be a guide rod (not shown in the figure). The guide rod can be arranged parallel to the side of the second load platform 21 along the length direction of the second load platform 21 and connected through a flange. at both ends of the second carrying platform 21.

The matching piece 40 can be a collar (not shown in the figure) corresponding to the outer surface of the guide rod, and the collar can be fixedly installed on the first load-bearing platform 11 or the first guardrail 12 .

When it is necessary for the second hanging basket 20 to move along the second direction The extension direction of the guide rod moves to the required inspection position, and the staff enters the second hanging basket 20 to conduct comprehensive inspection or repair of the blade.

Of course, the guide rods can also be arranged parallel to the end surface of the first bearing platform 11 along the width direction of the first bearing platform 11 and connected to both sides of the first bearing platform 11 through flanges. The collar corresponds to the installation position of the guide rod and is fixed on the second load-bearing platform 21 or the second guardrail 22 .

Example 3:

As an embodiment of the present invention, based on the above-mentioned Embodiment 1, it is a partial alternative to the above-mentioned Embodiment 1.

The guide member 30 may include a guide rail 31 body and a rack (not shown in the figure). The guide rail 31 body is provided with guide grooves along its extension direction. The extension direction can also be understood as the length direction or guide direction of the guide rail 31 . The rack can be disposed on the outer side of the guide rail 31 body, or the rack can be disposed on one side of the notch of the guide groove.

The matching piece 40 includes a pulley bracket 41 and a guide pulley 42 and a gear (not shown in the figure) provided on the pulley bracket 41. The guide pulley 42 can be matched with the guide rail 31 body for guidance, and the gear can be engaged with the rack for guidance. The driving guide rail 31 body moves, that is, the gear can be drivingly connected with the output shaft of the driving motor (not shown in the figure), and the driving motor can be installed in the first hanging basket 10 .

When the second hanging basket 20 needs to move along the second direction The guide pulley 42 cooperates to slide, so that the second hanging basket 20 automatically moves to the required inspection position along the extension direction of the guide body. The staff enters the second hanging basket to conduct comprehensive inspection or repair of the blades. It is easy to operate and more time-saving to use. Save effort.

It can be understood that the guide rail 31 provided in this embodiment has both driving and guiding functions, and can replace the manual push of the second hanging basket 20 to move, which is easy to operate and saves time and effort.

Furthermore, the rack can be a roller rack, and the roller rack is suitable to cooperate with the rollers to control the movement of the guide rail 31 body.

The roller rack is specifically a zero-backlash roller rack. The teeth (roll pins) of the zero-backlash roller rack are in contact with the rack at 2-3 places, and no tooth backlash occurs in the forward and reverse directions. Since there is no backlash between the roller and the roller rack during the driving process, high-speed operation can be achieved, and the reciprocating positioning accuracy is high. The roller sliding on the roller rack can avoid the use of traditional gear racks for long-distance drive transmission, which has low precision and Disadvantages of loud noise and large dust generation.

It should be noted that in the above three embodiments, the second hanging basket 20 and the first hanging basket 10 are directly connected through the guide component and the anti-falling component; the second hanging basket 20 and the first hanging basket 10 can also be indirectly connected. The connection method, such as connecting the second hanging basket 20 with the first hanging basket 10 through a linkage mechanism, and setting a hanging point device on the second hanging basket 20, also realizes that the second hanging basket 20 is connected to the first hanging basket 10. Both ends move back and forth.

Example 4:

Referring to Figures 1 and 4, as an embodiment of the present invention, on the basis of the above-mentioned embodiments, the difference from the above-mentioned embodiments is that the anti-falling component 50 also includes a wear-proof plate 52, and the wear-proof plate 52 is provided Between the anti-detachment hook 51 and the basket of the second hanging basket 20; the wear-resistant plate 52 can also be provided between the anti-detachment hook 51 and the first hanging basket 10; between the first hanging basket 10 and the second hanging basket 20 .

The wear plate 52 can be bent from sheet metal to form a shape that is compatible with the internal structure of the anti-detachment 51 . The wear-proof plate 52 can be welded and fixed on the anti-detachment 51. By arranging the wear-proof plate 52 between the anti-detachment 51 and the protection body 221, it is equivalent to increasing the contact area between the anti-detachment 51 and the protection body 221, thereby increasing the anti-detachment. The anti-detachment ability of the detachment 51 reduces the wear of the anti-detachment 51 .

In order to further reduce the wear of the anti-decoupling 51 , a rubber pad can also be provided on the side of the wear-proof plate 52 facing the protective body 221 .

In order to limit the position of the second hanging basket 20, a limiting pin 53 is provided on at least one of the anti-wear plate 52 and the anti-detachment 51, and the second hanging basket 20 is in contact with the wear-proof plate 52 or the anti-detachment 51 of the basket. A plurality of limiting holes 223 are provided, and the limiting pin 53 is inserted into any limiting hole 223 to position the second hanging basket 20 on the first hanging basket 10 .

After the second hanging basket 20 moves to the appropriate position along the second direction After the second hanging basket 20 , the second hanging basket 20 moves along the guide rail 31 .

Example 5:

Referring to Figures 1 and 5, as an embodiment of the present invention, on the basis of the above-mentioned embodiments, what is different from the above-mentioned embodiments is that the first hanging basket 10 also includes a reinforcing part, and the reinforcing part is arranged on the first A triangle is constructed between the top of the hanging basket body and the first hanging basket body. According to the stability properties of the triangle, the overall stability of the first hanging basket 10 structure is further improved.

Specifically, the reinforcing part may be two left and right reinforcing rods 1213 arranged in a "herringbone" shape. Both the first frame 121 and the second frame 122 include a plurality of horizontal frames 1211 and a plurality of vertical frames 1212. The horizontal frames 1211 and the vertical frames 1212 can be arranged in a staggered manner, or the horizontal frames 1211 can be arranged in the horizontal direction, and the longitudinal frames 1212 can be arranged along the horizontal direction. Arranged in the vertical direction, two adjacent horizontal frames 1211 and vertical frames 1212 are fixedly connected.

As shown in FIGS. 1 and 5 , equivalently, the longitudinal frame 1212 at the middle position of the first frame 121 extends outward to form an extension part, and the reinforcing rod 1213 is connected obliquely between the extension part and the anti-separation component 50 to form a reinforcing part. Similarly, the reinforcing portion on the second frame 122 has the same structure as the reinforcing portion on the first frame 121 .

Example 6:

Referring to Figures 1, 5 and 6, as an embodiment of the present invention, based on the above embodiments, the difference from the above embodiments is that in order to prevent the hanging basket assembly from contacting the blades and causing the blades to wear, An anti-wear component 60 is provided on the outside of at least one of the first hanging basket body and the reinforcement part. The anti-wear component 60 includes a plurality of anti-wear rollers 61 and an anti-wear bracket 62 for supporting the anti-wear rollers 61 .

The material of the anti-wear roller 61 can be rubber, etc. When the hanging basket assembly is close to the blade, it can effectively avoid rigid collision between the hanging basket assembly and the blade to damage the blade.

The plurality of anti-wear rollers 61 can be arranged in a triangular shape and cover the entire surface of the first hanging basket 10 as much as possible to increase the protection area of the first hanging basket 10 .

In addition, a lifting point device 70 is provided inside at least one of the first hanging basket body and the reinforcing part. The lifting point device 70 is suitable for hoisting the traction part. The lifting point device 70 may be a hoist or a lifting mechanism to lift the traction part. Connected to the lifting point device 70 to lift the hanging basket assembly along the first direction Z.

Specifically, two lifting point devices 70 for hoisting the traction parts are provided oppositely on the inner side of the first hanging basket 10 , and one lifting point device 70 for hoisting the traction parts is provided on the positioning component 100 , and between all the lifting point devices 70 The connecting lines form a triangle, that is, three-point lifting is used to ensure that the blade inspection platform is lifted smoothly.

When the hanging point device 70 is installed on the positioning component 100, it can be installed on the positioning arm 101 through a bracket. A safety lock is provided on each lifting point device 70 to prevent the blade inspection platform from accidentally falling.

In addition, a plurality of guide wheel assemblies 80 are provided on the first hanging basket 10. The guide wheel assemblies 80 are provided on the moving path of the traction member and used to guide the movement of the traction member.

It should be noted that the technical solutions in the various embodiments of the present invention can be combined with each other, but the basis for the mutual combination is based on what those of ordinary skill in the art can implement; when the combination of technical solutions is contradictory or cannot be implemented, it should be considered This combination of technical solutions does not exist, and does not fall within the protection scope of the present invention.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that it can still be used Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent substitutions are made to some of the technical features; however, these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. A blade maintenance platform is characterized by including:

   A hanging basket assembly, the hanging basket assembly includes a first hanging basket and a second hanging basket, the first hanging basket is suitable for lifting by a traction member, so that the first hanging basket moves along the first direction; the second hanging basket The hanging basket is movably connected to at least one side of the first hanging basket and is adapted to move in a second direction, and the second direction and the first direction are arranged at an angle to each other;

   Telescopic assembly, the telescopic assembly is arranged at the bottom of the first hanging basket and is suitable for telescopic movement in a third direction, the third direction forms an angle with the first direction and the second direction. set up.
2. The blade maintenance platform according to claim 1, characterized in that a guide component is provided between the first hanging basket and the second hanging basket, and the guide component is suitable for the second hanging basket along the Move in the second direction;

   The guide component includes matching guide parts and matching parts;

   The guide member is provided on either one of the first hanging basket and the second hanging basket; the fitting member is provided on the other of the first hanging basket and the second hanging basket.
3. The blade maintenance platform according to claim 2, characterized in that the arrangement form of the guide component includes any of the following:

   The guide part is a guide rail, and the matching part is at least one of a guide pulley and a guide slider;

   The guide member includes a guide rail body with guide grooves along its extension direction and a rack connected to one side of the guide rail body. The matching member includes a guide pulley that cooperates with the guide groove, and a guide pulley that matches the guide groove. meshing gears or rollers;

   The guide part is a guide rod, and the matching part is a collar sleeved on the guide rod.
4. The blade maintenance platform according to claim 2, characterized in that the guide component is provided at the bottom of the first hanging basket and the second hanging basket;

   Alternatively, the guide component is provided on the top of the first hanging basket and the second hanging basket;

   Alternatively, the guide component is provided on the side of the first hanging basket and the second hanging basket.
5. The blade maintenance platform according to claim 2, characterized in that an anti-separation component is further provided between the first hanging basket and the second hanging basket, and the anti-separation component is adapted to prevent the second hanging basket from The basket is detached from the guide member;

   The anti-detachment component includes an anti-detachment hook, the anti-detachment hook includes an anti-detachment body and a hook body, the anti-detachment body is fixed on either one of the first hanging basket and the second hanging basket; the hook body Hanging on the other one of the first hanging basket and the second hanging basket.
6. The blade maintenance platform according to claim 5, wherein the anti-detachment component further includes a wear-resistant plate, and the wear-preventive plate is provided between the anti-detachment hook and the basket of the second hanging basket;

   A limiting pin is provided on at least one of the anti-wear plate and the anti-detachment hook, and a plurality of limit holes are provided on the basket connected to the second hanging basket and the anti-wear plate or the anti-detachment hook. The limit pin is inserted into any of the limit holes.
7. The blade inspection platform according to any one of claims 1 to 6, characterized in that the telescopic assembly includes a telescopic arm and a positioning component, the positioning component is connected to one end of the telescopic arm and is suitable for contacting the wind turbine On the outer wall of the tower, the telescopic arm is adapted to drive the first hanging basket to move along the third direction.
8. The blade maintenance platform according to claim 7, wherein the telescopic arm includes a telescopic body and a telescopic component disposed inside the telescopic body, the positioning component is connected to one end of the telescopic component, and the The first hanging basket is arranged on the telescopic body.
9. The blade maintenance platform according to claim 8, characterized in that the positioning component includes:

   Positioning arm. The positioning arm includes a positioning arm body and a positioning extension part. The positioning extension part is movably connected with the positioning arm body and is suitable for switching between an unfolded state and a folded state. The positioning arm body has a Provided with at least one first positioning wheel;

   The first movable arm is fixedly connected to the positioning extension and forms an included angle with the positioning extension. The first movable arm is provided with at least one second positioning wheel.
10. The blade maintenance platform according to claim 9, characterized in that the positioning component further includes:

    a second movable arm, the second movable arm is movably connected to the first movable arm, and at least one adsorption member is movably connected to the second movable arm;

    A driving member, the first end of the driving member is fixedly connected to the positioning extension, and the second end of the driving member is movably connected to the second movable arm.

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