A wind turbine maintenance auxiliary device

Abstract

The application belongs to the technical field of wind power generation, and discloses a wind power generator maintenance auxiliary device, which comprises a fixed group frame and a supporting column, a climbing frame is fixedly installed on the right side of the supporting column at equal intervals, a movable group frame is movably connected to the upper end of the fixed group frame, and a locking device is movably connected between the guide rods between the fixed group frame and the movable group frame. The fixed group frame, the movable group frame and the locking device are cooperatively arranged to adjust the height of the platform and ensure the safety of the maintenance operation. The movable group frame is vertically lifted under the limiting action of the fixed group frame, and the position of the fixed group frame and the movable group frame is limited by the threaded connection in the locking device after the height is determined. Thus, the height of the two can be adjusted according to the work and lifting of the operator, which ensures the safety of the operator and facilitates normal work and maintenance.

Description

Technical Field

[0001] The invention belongs to the technical field of wind power generation, and in particular relates to a wind generator maintenance auxiliary device. Background Art

[0002] A wind turbine is an electrical device that converts wind energy into mechanical work, which in turn drives the rotor to rotate, ultimately outputting alternating current. A wind turbine generally consists of a rotor, generator (including its components), a stabiliser (tail), tower, speed limiter, and energy storage device. The working principle of a wind turbine is relatively simple: the rotor rotates under the influence of wind, converting the wind's kinetic energy into mechanical energy for the rotor shaft. Driven by the rotor shaft, the generator rotates to generate electricity. Broadly speaking, wind energy is also solar energy, so a wind turbine can also be said to be a heat-utilizing generator that uses the sun as its heat source and the atmosphere as its working medium. With the increasing pollution and simultaneous depletion of oil resources, people have begun to actively explore new energy sources in order to achieve energy substitution and replacement, thereby maximizing social stability and sustainable resource supply.

[0003] In response to the above problems, we have developed a series of natural power generation equipment, such as wind power, tidal power, solar energy, etc. This application specifically describes wind power generation devices. Wind power generation devices are generally installed in areas with sparse population and relatively flat terrain, as well as areas with relatively abundant wind resources. This can ensure that they can continuously and stably output electricity. Wind turbines are generally installed very carefully and only require regular maintenance every year. Generally, staff climb to the platform and use the corresponding equipment for inspection. The platform, as a necessary auxiliary device for equipment maintenance, can provide sufficient support for operators and can also avoid the risks brought by high-altitude operations to the greatest extent.

[0004] The platform can simply achieve the above effects, but it also has a series of obvious weaknesses. Generally, the platform device is set on the top of the support column of the wind turbine. The greater the height, the greater the overall wind force. Therefore, the overall mass of the platform part needs to be reduced accordingly to reduce the pressure and gravity on the equipment. The existing technology basically uses steel bars or steel pipe structures welded into a simple annular cone, and in order to facilitate personnel to lean over to check the equipment, the overall height of the annular cone is often not large. Once encountering sudden bad weather, the operator will be completely exposed to the natural environment, basically without any shelter. If the bad weather lasts for a long time, it will have a significant impact on the operator's body, and the physical exertion will be relatively large. At this time, the operator is often prone to physical overdraft or physical discomfort, and it is difficult to climb down the wind power generation equipment alone. In the end, he needs to wait for rescue. The platform of the wind power generation equipment is high and the top environment is difficult to control, so it is easy to cause life safety problems. Summary of the Invention

[0005] In order to solve the problems raised in the above background technology, the present invention provides a wind turbine maintenance auxiliary device to solve the problems existing in the background technology.

[0006] The top end face of said supporting ram is fixedly provided with a support frame, and the bottom end face of said supporting ram is fixedly provided with a support frame, and the support frame is fixedly provided with a support frame at a right angles to the top of said supporting ram, and the upper end face of said supporting ram is movably connected to said movable frame.

[0007] Preferably, the fixed assembly frame includes a fixed frame, and sealing welding rings are fixedly installed on the front and back sides of the middle part of the bottom plate of the fixed frame. The right end of the bottom of the fixed frame is movably hinged with a folding plate, the top of the bottom plate of the fixed frame is adhered with an anti-slip pad, and five fixed pull rings are fixedly installed at equal angles in a ring shape on the top of the fixed frame. The fixed frame is movably connected to the movable assembly frame, and the guide rods in the fixed frame and the movable assembly frame are staggered.

[0008] Preferably, the bottom of the fixed frame and the thickened bottom plate in the fixed assembly frame are penetrated by fan-shaped grooves, and the area of ​​the fan-shaped groove of the fixed frame is larger than the area of ​​the fan-shaped groove of the thickened bottom plate. The folding plate is movably hinged inside the fixed frame and its bottom is overlapped and placed inside the thickened bottom plate. The fan-shaped grooves of the fixed frame and the thickened bottom plate correspond vertically to the position of the climbing frame.

[0009] Preferably, the locking device includes a fixed group ring and a movable group ring, the middle part of the inner side of the fixed group ring and the movable group ring are fixedly installed with a threaded inner cylinder, the interior of the two threaded inner cylinders are movably clamped with an outer cylinder, the inner sides of the two outer cylinders are threadedly connected with a nut ring, the fixed group ring is movably sleeved on the guide column surface of the fixed group frame, and the movable group ring is movably sleeved on the guide column surface of the movable group frame.

[0010] Preferably, the fixed group ring and the movable group ring can both slide on the guide column, the thread directions on the inner sides of the two outer cylinders are opposite, the thread directions at both ends of the nut ring are opposite and it is threadedly connected to the outer cylinders at both ends, and the partial structures of the locking devices at both ends in the longitudinal mid-axis plane of the nut ring are completely consistent.

[0011] Preferably, the shielding device includes a side cloth, the bottom of the side cloth is fixedly connected to the vertical cloth, the top of the side cloth is movably connected to a clamping ring, the clamping ring is fixedly installed on the upper end of the support column, five elastic rope hooks are fixedly installed at equal angles in a ring in the interlayer inside the side cloth, five soft magnetic strips are fixedly installed at equal angles in a ring on the surface of the vertical cloth, the five soft magnetic strips and the five elastic rope hooks are staggered with each other, and the storage ring is located directly above the clamping ring.

[0012] Preferably, the side baffle is designed as a whole with a wavy design and it and the elastic rope hook are elastic. When the five elastic rope hooks are movably buckled inside the fixed pull ring, the side baffle is fully unfolded. When the elastic rope hook loses tension, the diameter value shrinks to one-third of the fully unfolded state. Five pull openings are opened at equal angles on the surface of the storage ring. The five pull openings correspond to the positions of the five elastic rope hooks and the five fixed pull rings. When the elastic rope hook is folded upward and engaged with the pull opening, the soft magnetic strip is magnetically adsorbed to the support column.

[0013] Preferably, the extension and retraction degree of the corrugated cover is consistent with the height lifting operation of the movable assembly frame. When the side cloth in the shielding device is fully expanded, it has a conical arc structure. When the corrugated cover is fully expanded, it has a cylindrical arc structure. When the vertical cloth in the shielding device and the corrugated cover are fully expanded, the outer wall of the vertical cloth is in contact with the inner wall of the corrugated cover.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention achieves the purpose of adjustable platform height and safe maintenance operation by providing a fixed assembly frame, a movable assembly frame and a locking device and other structures. The fixed assembly frame and the movable assembly frame adopt a movable card connection form. The movable assembly frame can be vertically raised and lowered under the limiting action of the fixed assembly frame. After the height is determined, the position of the fixed assembly frame and the movable assembly frame is completed by the threaded connection form in the locking device. In this way, the operator can adjust the height of the two according to his own work and elevation conditions. This not only ensures the safety of the operator, but also makes normal work and maintenance more convenient.

[0016] 2. The present invention achieves the purpose of good protection effect by providing a corrugated cover, a shielding device and a fixed group frame and other structures to work together. When encountering bad weather, the operator only needs to raise the movable group frame to the maximum height to protect the strength of the shell. At the same time, the corresponding raising of the movable group frame will also synchronously drive the expansion of the corrugated cover, thereby forming a side protection for the personnel. Then, the elastic rope hook is made to be movable and connected to the fixed pull ring by using the pulling force, so that it is fully expanded. The expanded shielding device cooperates with the expanded corrugated cover to form a relatively closed environment, which can ensure that the operator is protected from the influence of the external environment and also provide a good rest area for him. After the use of the shielding device, the subsequent storage and replacement are also very simple and easy. The overall operation is simple and the protection effect is good.

[0017] 3. The present invention achieves the purpose of structural stability, low gravity and good escape effect by setting up fixed frames, support columns and climbing frames and other structures working together. The whole device adopts the form of fixed frames and movable frames. The width of the middle guide rod of a single fixed frame or movable frame is relatively large, and a single person can pass through sideways. Only when the two are overlapped can it be completely determined that people cannot pass through. The design of this device is suitable for small and medium-sized wind power generation devices. When emergency escape is required, the operator can escape from the folding plate area through the traditional emergency escape device. If the situation is more urgent, the operator can escape quickly with the help of the spacing between the fixed frames. The two escape methods can provide survival opportunities for the staff in different situations. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic cross-sectional view of the present invention;

[0019] Figure 2 This is a schematic diagram of the overall appearance of the present invention;

[0020] Figure 3 This is a schematic diagram of the bottom of the overall device of the present invention;

[0021] Figure 4 This is a schematic diagram of the coordination between the fixed assembly frame, the movable assembly frame and the locking device of the present invention;

[0022] Figure 5 This is a schematic diagram of the positions of the fixed assembly frame, the movable assembly frame and the locking device of the present invention;

[0023] Figure 6 This is a schematic diagram showing the separation of the fixed assembly frame, the movable assembly frame and the locking device of the present invention;

[0024] Figure 7 This is an exploded schematic diagram of the locking device of the present invention;

[0025] Figure 8Schematic diagram of the positional relationship among the shielding device, the storage ring and the support column of the present invention;

[0026] Figure 9 It is a structural schematic diagram of the shielding device of the present invention.

[0027] In the figure: 1. Fixed assembly frame; 101. Folding plate; 102. Sealing welding ring; 103. Anti-slip pad; 104. Fixed pull ring; 105. Fixed frame; 2. Movable assembly frame; 3. Locking device; 31. Fixed assembly ring; 32. Movable assembly ring; 33. Outer cylinder; 34. Threaded inner cylinder; 35. Nut ring; 4. Corrugated cover; 5. Thickened bottom plate; 6. Shielding device; 61. Side cloth; 62. Vertical cloth; 63. Elastic rope hook; 64. Soft magnetic strip; 65. Clamp; 7. Storage ring; 8. Support column; 9. Climbing frame; 10. Emergency escape device. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] like Figures 1 to 9 As shown, the present invention provides a wind turbine maintenance auxiliary device, comprising a fixed assembly frame 1 and a support column 8, a climbing frame 9 is fixedly installed at an equidistant distance on the right side of the support column 8, the upper end of the fixed assembly frame 1 is movably connected to the movable assembly frame 2, the guide rods between the fixed assembly frame 1 and the movable assembly frame 2 are movably sleeved with a locking device 3, a corrugated cover 4 is fixedly installed between the outer periphery of the bottom of the fixed assembly frame 1 and the outer periphery of the bottom of the movable assembly frame 2, a thickened bottom plate 5 is fixedly installed at the bottom of the fixed assembly frame 1, a storage ring 7 is fixedly installed on the upper end of the support column 8, and a shielding device is fixedly installed on the upper end of the support column 8 and at the bottom of the storage ring 7 6. The periphery of the shielding device 6 is movably connected to the top of the fixed assembly frame 1. The surface of the upper end of the support column 8 and the lower end bearing located at the top structure of the shielding device 6 are connected to the emergency escape device 10. The entire emergency escape device 10 structure is a device with a rotating function. The device is similar to the traction device of an elevator. The rope will gradually loosen when pulled by external force. If a strong and fast pull is required, a rapid jam will occur. This part is too simple in the existing technology and will not be described in detail here. The operator uses it as an escape tool in an unexpected situation, which can give the operator some chances to escape and save his life.

[0030] The present application designs an auxiliary maintenance device for a wind turbine, specifically a platform part. Generally, when operators inspect the blades and fan parts of the wind turbine, they basically need the support of the platform. In this way, the operators can move relatively freely as a whole, and can more smoothly and stably realize the replacement of work and inspection areas. The main improvement of the present application is to provide a temporary emergency protection device. Generally, the platform is basically semi-exposed, and it is very unsafe for maintenance personnel in case of occasional bad weather. The present application, on the one hand, strengthens the design structure of this part, and on the other hand, sets a corresponding structure that can quickly shield the operator to ensure that in case of bad weather, the operator can be well protected to avoid accidents.

[0031] The fixed assembly 1 includes a fixed frame 105. Sealing weld rings 102 are fixedly installed on both sides of the middle of the bottom plate of the fixed frame 105. A folding plate 101 is movably hinged at the right end of the bottom of the fixed frame 105. A non-slip pad 103 is adhered to the top of the bottom plate of the fixed frame 105. Five fixed pull rings 104 are fixedly installed at equal angles in a ring shape on the top of the fixed frame 105. The fixed frame 105 is movably connected to the movable assembly 2, and the guide rods in the fixed frame 105 and the movable assembly 2 are staggered.

[0032] Among them, the bottom of the fixed frame 105 and the thickened bottom plate 5 in the fixed frame assembly 1 are penetrated by a fan-shaped groove, and the area of ​​the fan-shaped groove of the fixed frame 105 is larger than the area of ​​the fan-shaped groove of the thickened bottom plate 5. The folding plate 101 is movably hinged inside the fixed frame 105 and its bottom is overlapped and placed inside the thickened bottom plate 5. The fan-shaped grooves of the fixed frame 105 and the thickened bottom plate 5 are vertically corresponding to the positions of the climbing frame 9;

[0033] like Figure 1 、 5 As shown in Figure 6, the entire fixed assembly frame 1 structure is equivalent to a limiting structure, which works in conjunction with the movable assembly frame 2. Combined with the locking device 3, it can achieve the fixation of the position or height of the movable assembly frame 2, and at the same time provides a standing area for the staff.

[0034] The locking device 3 includes a fixed group collar 31 and a movable group collar 32. A threaded inner tube 34 is fixedly installed in the middle of the inner side of each of the fixed group collar 31 and the movable group collar 32. The inner sides of the two threaded inner tubes 34 are movably clamped with an outer tube 33. The inner sides of the two outer tubes 33 are threadedly connected with nut rings 35. The fixed group collar 31 is movably sleeved on the surface of the guide column of the fixed group frame 1, and the movable group collar 32 is movably sleeved on the surface of the guide column of the movable group frame 2.

[0035] The fixed collar 31 and the movable collar 32 can both slide on the guide post. The threads on the inner sides of the two outer cylinders 33 are in opposite directions. The threads on both ends of the nut ring 35 are in opposite directions and are threadedly connected to the outer cylinders 33 at both ends. The locking devices 3 at both ends of the nut ring 35 in the longitudinal mid-axis plane are completely identical in structure.

[0036] like Figure 5 、 6 As shown in Figures 7 and 8, the fixed assembly 1 and the movable assembly 2 adopt a form similar to a movable sleeve, so the overall height can be smoothly adjusted. At this time, the entire locking device 3 is used to achieve the limit fixation of the height position of the two. Under normal circumstances, the nut ring 35 and the outer cylinder 33 at both ends are threadedly connected, mainly to facilitate the subsequent rapid pulling and locking. The entire outer cylinder 33 and the threaded inner cylinder 34 adopt a movable sleeve clamping form. Therefore, the two outer cylinders 33 can be pulled closer by rotating the nut ring 35 in the positive direction. At the same time, they are subject to the clamping fit of the threaded inner cylinder 34, so the corresponding fixed assembly The collar 31 and the movable group collar 32 are also tightly pulled, and correspondingly, the fixed group frame 1 and the movable group frame 2 are tightly tightened and matched; when the entire nut ring 35 rotates in the opposite direction, the outer cylinders 33 at both ends begin to be pushed in the opposite direction. At this time, there is no obvious tightening working state between the fixed group frame 1 and the movable group frame 2, and the operator can freely adjust the height of the movable group frame 2. The device is simple to operate and easy to control, and the fixed group frame 1 and the movable group frame 2 work directly together. Subsequent operators can also choose the number of locking devices 3 according to their own needs, and have great flexibility and stability.

[0037] Among them, the shielding device 6 includes a side cloth 61, the bottom of the side cloth 61 is fixedly connected to a vertical cloth 62, the top of the side cloth 61 is movably connected to a snap ring 65, the snap ring 65 is fixedly installed on the upper end of the support column 8, and five elastic rope hooks 63 are fixedly installed in a ring at equal angles in the interlayer inside the side cloth 61. Five soft magnetic strips 64 are fixedly installed in a ring at equal angles on the surface of the vertical cloth 62. The five soft magnetic strips 64 and the five elastic rope hooks 63 are staggered with each other, and the storage ring 7 is located directly above the snap ring 65;

[0038] Among them, the side baffle 61 is designed as a whole with a wavy design and it and the elastic rope hook 63 are elastic. When the five elastic rope hooks 63 are movably buckled inside the fixed pull ring 104, the side baffle 61 is fully expanded. When the elastic rope hook 63 loses tension, the diameter value shrinks to one-third of the fully expanded value. Five pull-outs are opened at equal angles on the surface of the storage ring 7. The five pull-outs correspond to the positions of the five elastic rope hooks 63 and the five fixed pull rings 104. When the elastic rope hook 63 is folded upward and engaged with the pull-outs, the soft magnetic strip 64 is magnetically attracted to the support column 8.

[0039] like Figure 1 、 8As shown in Figure 9, the function of the entire shielding device 6 is actually to cooperate with the corrugated cover 4 to form a relatively closed environment on the top and sides, which is used to protect maintenance personnel from bad weather. The entire side baffle 61 itself is a wavy design similar to that of a bellows, so it has a certain stretchability. At the same time, five elastic rope hooks 63 are evenly passed through it, and the two are fixed at equidistant corresponding connection points, that is, the side baffle 61 is connected to the elastic rope hooks 63 several times from high to low with equal intervals. When the entire side baffle 61 needs to be unfolded, the elastic rope hooks 63 can be used to cooperate with the fixed pull ring 104 to tighten it. If it needs to be stored, it is even simpler, that is, the resilience of the side baffle 61 and the elastic rope hooks 63 is used to restore the two to their initial folded state. At this time, the elastic rope hooks 63 are folded upward and hung on the pull opening of the storage ring 7, and the soft magnetic strips 64 are magnetically adsorbed on the metal surface of the support column 8, so that the entire device can be quickly stored without affecting the normal work of the operator. It can be opened again for subsequent use.

[0040] The extension and retraction of the bellows 4 is consistent with the height lifting operation of the movable assembly frame 2. When the side baffles 61 of the shielding device 6 are fully extended, they have a truncated cone arc structure. When the bellows 4 are fully extended, they have a cylindrical arc structure. When the vertical baffles 62 of the shielding device 6 and the bellows 4 are fully extended, the outer wall of the vertical baffles 62 is in contact with the inner wall of the bellows 4.

[0041] like Figure 1 As shown, when the side baffles 61 and the corrugated cover 4 are fully unfolded, a hollow bottomless frustum is formed. This area is large enough to accommodate the corresponding staff to avoid bad weather or take a break after a long period of work. The entire device is basically arranged in the framework of the fixed assembly frame 1 and the movable assembly frame 2. The overall supporting strength is guaranteed and it is not easy to be damaged or deformed.

[0042] The working principle and use process of the present invention:

[0043] When adjusting the height: when the operator climbs onto the entire platform and needs to inspect the wind turbine equipment, the entire shielding device 6 is stored. In order to ensure operational safety and prevent falling, the operator can lift the movable group frame 2 structure according to the actual situation to achieve height lifting, thereby achieving the change of the combined height of the fixed group frame 1 and the movable group frame 2. When the operator has completed the adjustment according to the actual situation, he then twists the nut ring 35 structure in the positive direction. At this time, the nut ring 35 will use the design of the two-way thread to pull the outer cylinders 33 at both ends toward the middle, and then the fixed group collar 31 and the movable group collar 32 are pulled, and finally the fixed group frame 1 and the movable group frame 2 are pulled. If the operator locks the multiple sets of locking devices 3, the positions of the fixed group frame 1 and the movable group frame 2 can be completely fixed and locked. In this part, it should be noted that the fixed group collar 31 and the movable group collar 32 are both movably connected. When moving, as long as the lifting and lowering are relatively stable, there will be no jamming. Because the overall lifting is vertical, the jamming is not easy to occur.

[0044] Avoiding bad weather: When the operator is inspecting the equipment in bad weather, the operator quickly lifts the movable assembly frame 2 to the maximum height, and then uses the locking device 3 to fix the height position of the movable assembly frame 2. Then, the elastic rope hook 63 on the storage ring 7 is removed and connected to the fixed pull ring 104. When the five elastic rope hooks 63 are all connected to the fixed pull ring 104, the entire device is fully deployed. At this time, the fully deployed shielding device 6 and the corrugated cover 4 form a relatively closed environment. With the support of the fixed assembly frame 1 and the movable assembly frame 2 structure, it can effectively prevent the influence of the external bad environment and effectively protect the operator;

[0045] During storage: If the bad weather ends and the operator needs to return to the ground or re-check, he only needs to remove the five elastic rope hooks 63 from the fixed pull ring 104. Because the tension is lost, the entire side curtain 61 and the elastic rope hooks 63 will shrink synchronously. The operator only needs to snap it into the storage ring 7, and then use the soft magnetic strips 64 on the vertical curtain 62 to magnetically adsorb on the surface of the support column 8 to quickly realize the storage of the shielding device 6 structure. Then, loosen the locking device 3 structure to restore the movable group frame 2 to its initial state. The whole storage work is completed.

[0046] During emergency escape: the operator pulls out a part of the telescopic traction in the emergency escape device 10 in advance, so that it passes through the folding plate 101 and enters the several climbing frames 9 at the top, and then connects the butt end of the rope to the operator's safety belt. During the falling process, the operator grabs the climbing frame 9 as support on the one hand, and on the other hand, the top part is set inside the climbing frame 9, which can effectively prevent the upper end from shaking. As the personnel continues to descend, the entire emergency escape device 10 gradually releases the rope during the rotation process, ultimately ensuring the user's safe escape; the other way is to lift the movable group frame 2 to the maximum height, and then use the locking device 3 to fix the position of the movable group frame 2. At this time, the operator still uses the safety rope on his body to firmly connect to the rope end of the emergency escape device 10, and then escapes directly with the help of the interval of the fixed group frame 1.

[0047] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0048] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A wind turbine maintenance auxiliary device, comprising a fixed assembly frame (1) and a support column (8), wherein a climbing frame (9) is fixedly installed at equal distances on the right side of the support column (8), characterized in that: The upper end of the fixed frame (1) is movably connected to the movable frame (2), the vertical rods installed longitudinally at equal angles in the structure of the fixed frame (1) and the movable frame (2) are guide rods, and the guide rods between the fixed frame (1) and the movable frame (2) are movably sleeved with locking devices (3), a corrugated cover (4) is fixedly installed between the periphery of the bottom of the fixed frame (1) and the periphery of the bottom of the movable frame (2), a thickened bottom plate (5) is fixedly installed at the bottom of the fixed frame (1), a receiving ring (7) is fixedly installed on the upper end of the support column (8), a shielding device (6) is fixedly installed on the upper end of the support column (8) and located at the bottom of the receiving ring (7), the periphery of the shielding device (6) is movably connected to the top of the fixed frame (1), and the surface of the upper end of the support column (8) and the lower end bearing located at the top structure of the shielding device (6) are connected to the emergency escape device (10); The locking device (3) comprises a fixed group collar (31) and a movable group collar (32), wherein a threaded inner tube (34) is fixedly mounted on the middle of the inner sides of the fixed group collar (31) and the movable group collar (32), and the inner sides of the two threaded inner tubes (34) are movably clamped with an outer tube (33), and the inner sides of the two outer tubes (33) are threadedly connected with a nut ring (35), wherein the fixed group collar (31) is movably sleeved on the surface of the guide column of the fixed group frame (1), and the movable group collar (32) is movably sleeved on the surface of the guide column of the movable group frame (2); The fixed group collar (31) and the movable group collar (32) can both slide on the guide column. The threads on the inner sides of the two outer cylinders (33) are in opposite directions. The threads at both ends of the nut ring (35) are in opposite directions and are threadedly connected to the outer cylinders (33) at both ends. The locking devices (3) at both ends of the nut ring (35) in the longitudinal mid-axis plane are completely identical in structure.

2. A wind turbine maintenance auxiliary device according to claim 1, characterized in that: The fixed assembly frame (1) includes a fixed frame (105), the front and back sides of the middle of the bottom plate of the fixed frame (105) are fixedly installed with sealing welding rings (102), the right end of the bottom of the fixed frame (105) is movably hinged with a folding plate (101), the top of the bottom plate of the fixed frame (105) is adhered with an anti-slip pad (103), and five fixed pull rings (104) are fixedly installed at equal angles in a ring shape on the top of the fixed frame (105), and the fixed frame (105) is movably sleeved with the movable assembly frame (2).

3. The wind turbine maintenance auxiliary device according to claim 2, characterized in that: The bottom of the fixed frame (105) and the thickened bottom plate (5) in the fixed assembly frame (1) are both penetrated by fan-shaped grooves, and the area of ​​the fan-shaped groove of the fixed frame (105) is larger than the area of ​​the fan-shaped groove of the thickened bottom plate (5). The folding plate (101) is movably hinged inside the fixed frame (105) and its bottom is overlapped and placed inside the thickened bottom plate (5). The fan-shaped grooves of the fixed frame (105) and the thickened bottom plate (5) are vertically corresponding to the positions of the climbing frame (9).

4. The wind turbine maintenance auxiliary device according to claim 1, characterized in that: The shielding device (6) comprises a side baffle (61), the bottom of the side baffle (61) is fixedly connected to a vertical baffle (62), the top of the side baffle (61) is movably connected to a snap ring (65), the snap ring (65) is fixedly mounted on the upper end of the support column (8), five elastic rope hooks (63) are fixedly mounted at equal angles in a ring in the interlayer inside the side baffle (61), five soft magnetic strips (64) are fixedly mounted at equal angles on the surface of the vertical baffle (62), the five soft magnetic strips (64) and the five elastic rope hooks (63) are staggered, and the storage ring (7) is located directly above the snap ring (65).

5. The wind turbine maintenance auxiliary device according to claim 4, characterized in that: The side baffle (61) is designed as a whole with a wavy design and both it and the elastic rope hook (63) are elastic. When the five elastic rope hooks (63) are movably buckled inside the fixed pull ring (104), the side baffle (61) is fully unfolded. When the elastic rope hooks (63) lose tension, the diameter value shrinks to one-third of the fully unfolded value. Five pull openings are opened at equal angles on the surface of the storage ring (7). The five pull openings correspond to the positions of the five elastic rope hooks (63) and the five fixed pull rings (104). When the elastic rope hooks (63) are folded upward and movably engaged with the pull openings, the soft magnetic strip (64) and the support column (8) are magnetically adsorbed.

6. The wind turbine maintenance auxiliary device according to claim 1, characterized in that: The extension and retraction degree of the bellows (4) is consistent with the height lifting operation of the movable assembly frame (2); the side cloth (61) in the shielding device (6) presents a truncated cone arc structure when fully extended; the bellows (4) presents a cylindrical arc structure when fully extended; and the vertical cloth (62) in the shielding device (6) and the bellows (4) are in contact with the outer wall of the vertical cloth (62) and the inner wall of the bellows (4) when the vertical cloth (62) is fully extended.

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