Climbing-free lifting device for fan tower drum

Abstract

The invention discloses a climbing-free lifting device for a fan tower drum, belongs to the technical field of climbing-free lifting devices, and aims to solve the problem that a rotating mechanism of a roller is prone to being invaded by impurities such as dust or chippings, and rotation clamping stagnation is caused. The climbing-free lifting device comprises a supporting assembly, and a controller is arranged on one side of the supporting assembly; a driving assembly is arranged on one side of the supporting assembly, a climbing-free device is arranged on the driving assembly, the climbing-free device is slidably connected with the supporting assembly, two protection assemblies are arranged on one side of the supporting assembly, a plurality of fixing frames are oppositely arranged on one side of the climbing-free device, pushing assemblies are arranged in the fixing frames, and bearings are arranged on the outer walls of the pushing assemblies. A limiting assembly is arranged on the outer wall of the bearing and connected with the supporting assembly, a linkage assembly is arranged in the limiting assembly and connected with the fixing frame, dust can be prevented from entering the bearing, and the clamping stagnation hidden danger caused by impurities in subsequent operation is reduced.

Description

Technical Field

[0001] This invention relates to the field of non-climbing lifting devices, specifically a non-climbing lifting device for wind turbine towers. Background Technology

[0002] The wind turbine tower is the supporting structure of wind power generation equipment. The internal structure requires regular equipment inspection, maintenance, and component replacement. The lifting and lowering of personnel usually relies on a non-climbing device. Several rollers are rotatably connected to one side of the non-climbing device, which are rolled to a slide rail fixed inside the wind turbine tower. This allows the non-climbing device to lift and lower stably along the slide rail. This not only effectively limits the lateral deviation of the non-climbing device, ensuring the straightness and safety during the lifting and lowering process, but also reduces the frictional resistance during the operation of the non-climbing device, reduces power loss, and ensures the smoothness of the lifting and lowering operation. During long-term operation, dust or debris inside the wind turbine tower can easily intrude into the roller rotation mechanism of the current non-climbing device. As the debris accumulates, the rotational flexibility of the roller rotation mechanism decreases, leading to jamming. This not only causes a sudden drop in the lifting speed of the non-climbing device or intermittent stops, but also changes the rolling friction between the roller and the slide rail to sliding friction, increasing wear, shortening the service life of the slide rail and roller, and increasing equipment maintenance costs. If a serious jamming occurs suddenly while the operator is riding the non-climbing device, it may cause the device to stop abruptly or go out of control, creating a safety hazard.

[0003] To address the above issues, a non-climbing lifting device for wind turbine towers is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a non-climbing lifting device for wind turbine towers. By using this invention, the problem in the background that the rotating mechanism of the rollers is easily invaded by dust or debris and other impurities, causing rotational jamming, is solved.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A non-climbing lifting device for wind turbine towers includes a support assembly, a controller on one side of the support assembly, a drive assembly on another side of the support assembly, a non-climbing device on the drive assembly, the non-climbing device being slidably connected to the support assembly, two protective assemblies on one side of the support assembly, several fixed frames opposite each other on one side of the non-climbing device, a pushing assembly within each fixed frame, a bearing on the outer wall of the pushing assembly, a limit assembly on the outer wall of the bearing, the limit assembly being connected to the support assembly, a linkage assembly within the limit assembly, the linkage assembly being connected to the fixed frames, a jetting assembly on one side of each fixed frame, two replacement assemblies opposite each other within each fixed frame, and several snap-fit ​​assemblies within each fixed frame.

[0006] Furthermore, the support assembly includes two vertical rods fixedly connected to the inner wall of the wind turbine tower, with several horizontal rods evenly connected inside the two vertical rods, and a slide rail fixedly connected to one side of each horizontal rod, with the climber slidably connected to the slide rail.

[0007] Furthermore, the drive assembly includes two fixed seats fixedly connected to one side of the slide rail, each fixed seat having a drive wheel rotatably connected inside, and each drive wheel having a traction rope connected inside, with the climber fixedly connected to the traction rope.

[0008] Furthermore, the protective assembly includes two electric push rods installed on one side of the two vertical rods, with a support plate fixedly connected to the movable end of each electric push rod, and two protective shells disposed opposite each other on one side of the support plate.

[0009] Furthermore, the pushing component includes two electromagnets mounted opposite each other within a fixed frame. Two positioning blocks are slidably connected relative to each other within the fixed frame. A magnet is fixedly connected to one side of each positioning block. A positioning shaft is slidably connected to the outer wall of each positioning block. A bearing is fixedly connected to the outer wall of the positioning shaft. A first spring is fixedly connected inside the positioning shaft. A rotating plate is rotatably connected to each of the two positioning blocks. The first spring is fixedly connected to the rotating plate. A slider is fixedly connected to the outer wall of each positioning block. Two sliding grooves and an arc-shaped groove are respectively opened on the inner wall of the positioning shaft. Both sliding grooves communicate with the arc-shaped groove. The slider is slidably connected to both sliding grooves and the arc-shaped groove respectively.

[0010] Furthermore, the limiting assembly includes two limiting rods fixedly connected to both sides of the slide rail, a roller fixedly connected to the outer wall of the bearing, the rollers being in rolling connection with the limiting rods, and a speed sensor installed inside the rollers.

[0011] Furthermore, the linkage component includes a first gear fixedly connected inside the roller, a second gear meshing with one side of the first gear, two rotating shafts fixedly connected to both sides of the second gear, both rotating shafts being rotatably connected to the fixed frame, two eccentric wheels fixedly connected to the outer walls of the two rotating shafts, a limit groove being formed on one side of each of the two eccentric wheels, a rolling shaft being rotatably connected within the limit groove, a moving rod being rotatably connected to the outer wall of the rolling shaft, and the moving rod being slidably connected to the fixed frame.

[0012] Furthermore, the jet assembly includes two sealing shells fixedly connected to one side of the fixed frame. A piston is slidably connected inside each of the two sealing shells. The piston is fixedly connected to a moving rod. An air inlet pipe is connected to one side of each of the two sealing shells. A first one-way valve is connected to one end of each of the two sealing shells. A first air outlet pipe is connected to one end of each of the two sealing shells. A second one-way valve is connected to one end of each of the two one-way valves. A second air outlet pipe is connected to one end of each of the two one-way valves. A jet disc is fixedly connected to the fixed frame. Several air outlet holes are opened through one side of the jet disc.

[0013] Furthermore, the replacement component includes two sliding sleeves that are slidably connected to each other within the fixed frame. A rotating ring is rotatably connected within each of the two sliding sleeves. A first toothed ring is provided on one side of the rotating ring, and a second toothed ring is provided within the roller. The shapes of the first toothed ring and the second toothed ring are matched.

[0014] Furthermore, the snap-fit ​​assembly includes a slide rod slidably connected within the fixed frame, a connecting block fixedly connected to the outer wall of the slide rod, the connecting block slidably connected to the fixed frame, a second spring fixedly connected to one side of the connecting block, and the other end of the second spring fixedly connected to the inner wall of the fixed frame, and a snap-fit ​​groove is provided on the outer wall of the sliding sleeve.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: When the non-climbing device is idle and located above or below the support assembly, the protective assembly can prevent dust from entering the bearing, reducing the risk of jamming caused by impurities during subsequent operation.

[0016] When the non-climbing device is raised or lowered, the limit component can drive the linkage component to operate, so that the jet component can continuously spray out a stable air curtain, achieving dynamic dust protection for the bearing and avoiding jamming problems caused by dust intrusion during use.

[0017] When a jamming abnormality is detected, the push component drives the replacement component to slide, and the replacement component is fixed by the snap-fit ​​component. The rotation mechanism function can be restored without stopping the machine for disassembly, thus avoiding sudden stop or loss of control of the crawler. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 for Figure 1 Enlarged view of point A; Figure 3 for Figure 1 Enlarged view of point B; Figure 4 This is a cross-sectional structural diagram showing the connection relationship between the support component, controller, drive component, non-crawler, and protection component of the present invention. Figure 5 for Figure 4 Enlarged view of point C; Figure 6 This is a cross-sectional structural diagram showing the connection relationship between the support component, the non-climbing device, the fixing frame, and the limiting component of the present invention. Figure 7 This is a cross-sectional structural diagram showing the connection relationship between the fixed frame, limiting component, linkage component, jetting component and snap-fit ​​component of the present invention. Figure 8 This is a cross-sectional structural diagram showing the connection relationship between the fixed frame, the pushing component, the limiting component, the linkage component, and the jetting component of the present invention. Figure 9 for Figure 8 Enlarged view of point D; Figure 10 This is a cross-sectional structural diagram showing the connection relationship between the fixed frame, pushing component, limiting component, linkage component, jetting component, replacement component, and snap-fit ​​component of the present invention. Figure 11 for Figure 10 Enlarged view of point E; Figure 12 This is a schematic diagram of the pushing component structure of the present invention; Figure 13 This is a schematic diagram of the connection structure between the roller and the second gear ring of the present invention.

[0019] In the diagram: 1. Support assembly; 11. Vertical rod; 12. Horizontal rod; 13. Slide rail; 2. Controller; 3. Drive assembly; 31. Fixed base; 32. Drive wheel; 33. Traction rope; 4. Climb-free device; 5. Protective assembly; 51. Electric push rod; 52. Support plate; 53. Protective shell; 6. Fixed frame; 7. Push assembly; 71. Electromagnet; 72. Positioning block; 73. Magnet block; 74. Positioning shaft; 75. Rotating plate; 76. First spring; 77. Slider; 78. Slide groove; 79. Arc groove; 8. Bearing; 9. Limiting assembly; 91. Limiting rod; 92. Roller; 93. Speed ​​sensor; 10. Linkage assembly; 101. First Gear; 102, Second gear; 103, Rotating shaft; 104, Eccentric wheel; 105, Limiting groove; 106, Rolling shaft; 107, Moving rod; 20, Jet assembly; 201, Sealing shell; 202, Piston; 203, Inlet pipe; 204, First one-way valve; 205, First outlet pipe; 206, Second one-way valve; 207, Second outlet pipe; 208, Jet disc; 209, Outlet port; 30, Replacement assembly; 301, Sliding sleeve; 302, Rotating ring; 303, First gear ring; 304, Second gear ring; 40, Snap-fit ​​assembly; 401, Slide rod; 402, Connecting block; 403, Second spring; 404, Slot. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] To address the technical problem of dust or debris easily intruding into the rotating mechanism of roller 92, causing it to jam, such as... Figures 1-13 As shown, the following preferred technical solutions are provided: A non-climbing lifting device for wind turbine towers includes a support assembly 1, which supports and secures various components, such as... Figure 1 and Figure 4 As shown, a controller 2 is provided on one side of the support component 1. The controller 2 can control various electrical components. The controller 2 is existing technology and will not be described in detail here. A drive component 3 is provided on one side of the support component 1. A non-climbing device 4 is provided on the drive component 3. The non-climbing device 4 is slidably connected to the support component 1. The non-climbing device 4 can carry the staff. The non-climbing device 4 is existing technology and will not be described in detail here. The drive component 3 can drive the non-climbing device 4 to slide on the support component 1, thereby realizing the lifting and lowering of the staff. Two protective components 5 are provided on one side of the support component 1. Several fixed frames 6 are provided opposite to each other on one side of the non-climbing device 4. Pushing components 7 are provided in the fixed frames 6. Figures 10-11 As shown, a bearing 8 is provided on the outer wall of the pushing component 7, and a limiting component 9 is provided on the outer wall of the bearing 8. The limiting component 9 can limit the movement of the non-climbing device 4 to ensure the linearity of the lifting and lowering of the non-climbing device 4. At the same time, the limiting component 9 can detect its own rolling state to determine whether there is a jamming phenomenon. The limiting component 9 is connected to the support component 1. A linkage component 10 is provided inside the limiting component 9. The linkage component 10 is connected to the fixed frame 6. An air jet component 20 is provided on one side of the fixed frame 6.

[0022] When the non-climbing device 4 is located above or below the support component 1 and is in an idle state, the controller 2 causes the corresponding protective component 5 to move, thereby covering the fixed frame 6, the pushing component 7, the bearing 8, and the limiting component 9. This prevents dust from entering the bearing 8 when idle, reducing the risk of jamming caused by impurities during subsequent operation of the non-climbing device 4. During operation, the continuous rotation of the limiting component 9 drives the linkage component 10 to rotate, which in turn drives the jet component 20 to achieve a reciprocating cycle of air intake and exhaust. This forms a stable air curtain, achieving a dynamic dustproof effect on the bearing 8 and preventing dust from entering the bearing 8 during use, thus preventing the non-climbing device 4 from jamming. Two replacement components 30 are arranged opposite each other in the fixed frame 6, and several snap-fit ​​components 40 are also arranged in the fixed frame 6.

[0023] During the use of the non-climbing device 4, when the limiting component 9 detects a change in its own rolling state, the controller 2 causes the pushing component 7 to drive the two replacement components 30 to slide within the fixed frame 6 until the pushing component 7 disengages from the fixed frame 6 and is separated by a small distance. At this time, the two replacement components 30 fix the limiting component 9 from both sides, and the locking component 40 locks the two sides of the replacement component 30, thereby realizing the replacement of the rotating mechanism. This allows the non-climbing device 4 to quickly restore the normal function of the rotating mechanism when it is operating at height and personnel have not yet evacuated, avoiding the situation from worsening and causing the non-climbing device 4 to stop suddenly or go out of control. At the same time, it does not require immediate shutdown for disassembly and maintenance, which not only reduces downtime but also reduces the safety risks of personnel staying at height for a long time.

[0024] like Figures 1-6 As shown, the support assembly 1 includes two vertical rods 11 fixedly connected to the inner wall of the wind turbine tower. The wind turbine tower is an existing technology and is not shown in the figure. Several horizontal rods 12 are evenly connected inside the two vertical rods 11. A slide rail 13 is fixedly connected to one side of the horizontal rod 12. The climb-free device 4 is slidably connected to the slide rail 13.

[0025] like Figures 1-5 As shown, the drive assembly 3 includes two fixed seats 31 fixedly connected to one side of the slide rail 13. Each fixed seat 31 has a drive wheel 32 rotatably connected inside it. Each drive wheel 32 has a traction rope 33 connected inside it. The climb-free device 4 is fixedly connected to the traction rope 33. A motor is installed inside the fixed seat 31. The motor is existing technology and is not shown in the figure. The motor can drive the drive wheel 32 to rotate, thereby causing the traction rope 33 to drive the climb-free device 4 to rise and fall.

[0026] like Figure 1 and Figures 3-5 As shown, the protective component 5 includes two electric push rods 51 installed on one side of the two vertical rods 11. The movable ends of the two electric push rods 51 are fixedly connected to support plates 52. Two protective shells 53 are arranged opposite each other on one side of the support plates 52.

[0027] like Figure 8 and Figures 10-12 As shown, the pushing component 7 includes two electromagnets 71 installed opposite to each other in the fixed frame 6. Two positioning blocks 72 are slidably connected to each other in the fixed frame 6. A magnet block 73 is fixedly connected to one side of each of the two positioning blocks 72. A positioning shaft 74 is slidably connected to the outer wall of the two positioning blocks 72. A bearing 8 is fixedly connected to the outer wall of the positioning shaft 74. A first spring 76 is fixedly connected inside the positioning shaft 74. A rotating plate 75 is rotatably connected inside each of the two positioning blocks 72. The first spring 76 is fixedly connected to the rotating plate 75. A slider 77 is fixedly connected to the outer wall of each of the two positioning blocks 72. Two sliding grooves 78 and an arc-shaped groove 79 are respectively opened on the inner wall of the positioning shaft 74. Both sliding grooves 78 are connected to the arc-shaped groove 79. The slider 77 is slidably connected to both sliding grooves 78 and arc-shaped grooves 79 respectively.

[0028] like Figure 2 , Figures 5-8 , Figures 10-11 and Figure 13 As shown, the limiting component 9 includes two limiting rods 91 fixedly connected to both sides of the slide rail 13. A roller 92 is fixedly connected to the outer wall of the bearing 8. The roller 92 is tactilely connected to the limiting rods 91. A speed sensor 93 is installed inside the roller 92. The speed sensor 93 can detect the speed change and rotation continuity of the roller 92. By detecting the parameters, it can determine whether the bearing 8 is stuck or has abnormal movement. During the initial calibration, the non-climbing device 4 rises and falls smoothly. The speed sensor 93 records the normal speed range, speed stability parameters, and rotation characteristics of the roller 92 under different heights and different lifting directions. These reference data are preset in the controller 2 as a reference standard for judging whether the bearing 8 is stuck abnormally during subsequent operation.

[0029] like Figure 5 and Figures 7-10 As shown, the linkage assembly 10 includes a first gear 101 fixedly connected to the roller 92. A second gear 102 is meshed with one side of the first gear 101. Two rotating shafts 103 are fixedly connected to both sides of the second gear 102. Both rotating shafts 103 are rotatably connected to the fixed frame 6. Two eccentric wheels 104 are fixedly connected to the outer walls of the two rotating shafts 103. A limit groove 105 is opened on one side of each of the two eccentric wheels 104. A rolling shaft 106 is rotatably connected in the limit groove 105. A moving rod 107 is rotatably connected to the outer wall of the rolling shaft 106. The moving rod 107 is slidably connected to the fixed frame 6.

[0030] like Figure 5 and Figures 7-10 As shown, the jet assembly 20 includes two sealing shells 201 fixedly connected to one side of the fixed frame 6. A piston 202 is slidably connected inside each of the two sealing shells 201. The piston 202 is fixedly connected to the moving rod 107. An air inlet pipe 203 is connected to one side of each of the two sealing shells 201. One end of the air inlet pipe 203 is connected to a first one-way valve 204. A first air outlet pipe 205 is connected to one side of each of the two sealing shells 201. One end of the first air outlet pipe 205 is connected to a second one-way valve 206, and one end of the second one-way valve 206 is connected to a second air outlet. Pipe 207, one end of the second air outlet pipe 207 is connected to the jet disc 208, the jet disc 208 is fixedly connected to the fixed frame 6, and several air outlet holes 209 are opened through one side of the jet disc 208. The two eccentric wheels 104 are installed in symmetrical directions, so that when one eccentric wheel 104 drives the moving rod 107 and piston 202 to carry in air, the other eccentric wheel 104 drives the moving rod 107 and piston 202 to carry out jet, so that the jet disc 208 generates a continuous and stable air curtain, ensuring the protective effect.

[0031] When the non-climbing device 4 is located above or below the support assembly 1 and is in an idle state, the controller 2 causes the corresponding electric push rod 51 to move the support plate 52 and the two protective shells 53. This causes the protective shells 53 to cover the fixed frame 6, the pushing assembly 7, the bearing 8, and the limiting assembly 9, thus preventing dust from entering the bearing 8 when idle. This reduces the risk of jamming caused by impurities during subsequent operation of the non-climbing device 4. When the non-climbing device 4 is in use, the motor drives the drive wheel 32 to rotate, causing the traction rope 33 to pull the non-climbing device 4 to slide along the slide rail 13, facilitating the lifting and lowering of the operator. During the lifting and lowering process, the roller 92 rolls along the limiting rod 91. At the same time, the first gear 101 meshes with the second gear 102, causing the second gear 101 to... The rotating shafts 103 and eccentric wheels 104 on both sides of the piston 202 rotate and roll within the limiting groove 105 of the eccentric wheel 104 via the rolling shaft 106. This causes the moving rod 107 to slide within the fixed frame 6, resulting in the piston 202 reciprocating within the sealing shell 201. During this reciprocating motion, gas is drawn into the sealing shell 201 through the cooperation of the air inlet pipe 203 and the first one-way valve 204. The gas is then ejected from the air outlet 209 of the jet disc 208 through the first air outlet pipe 205, the second one-way valve 206, and the second air outlet pipe 207, thus forming a stable air curtain. This achieves a dynamic dustproof effect on the bearing 8, preventing dust from entering the bearing 8 during the use of the non-climbing device 4 and causing the non-climbing device 4 to jam.

[0032] To address the technical problem of difficulty in timely replacement when bearing 8 becomes stuck, such as... Figures 7-8 , Figures 10-11 and Figure 13 As shown, the following preferred technical solutions are provided: like Figure 8 , Figures 10-11 and Figure 13 As shown, the replacement component 30 includes two sliding sleeves 301 that are slidably connected to each other within the fixed frame 6. During normal use, the positioning block 72 is in contact with the sliding sleeves 301. A rotating ring 302 is rotatably connected inside each of the two sliding sleeves 301. A first toothed ring 303 is provided on one side of the rotating ring 302, and a second toothed ring 304 is provided inside the roller 92. The shapes of the first toothed ring 303 and the second toothed ring 304 are matched. The teeth of the first toothed ring 303 and the second toothed ring 304 are both set to be conical, which can facilitate quick connection even when misaligned.

[0033] like Figures 7-8 and Figures 10-11As shown, the snap-fit ​​assembly 40 includes a slide rod 401 slidably connected to the fixed frame 6. A connecting block 402 is fixedly connected to the outer wall of the slide rod 401. The connecting block 402 is slidably connected to the fixed frame 6. A second spring 403 is fixedly connected to one side of the connecting block 402. In the initial state, the second spring 403 is in a compressed state, and the other end of the second spring 403 is fixedly connected to the inner wall of the fixed frame 6. A slot 404 is provided on the outer wall of the sliding sleeve 301.

[0034] During the use of the non-crawling device 4, when the speed sensor 93 detects a change in its rolling state, the controller 2 energizes the electromagnet 71 to repel the magnet block 73, causing the positioning block 72 to push the sliding sleeve 301 to slide within the fixed frame 6 and compress the first spring 76. At this time, the slider 77 slides within one of the grooves 78. During continuous movement, the slider 77 moves from one of the grooves 78 to the arc-shaped groove 79. At this time, the positioning block 72 rotates on the rotating plate 75 until the positioning block 72 is disengaged from the fixed frame 6 and separated by a small distance. At this time, the two first toothed rings 303 are connected to the two second toothed rings 304 respectively, which facilitates fixing the rollers 92 from both sides. At the same time, the reset of the second spring 403 drives the connecting block 40. 2 and slide rod 401 slide within fixed frame 6, causing slide rod 401 to engage with slot 404, thereby fixing the position of sliding sleeve 301. At this time, controller 2 de-energizes electromagnet 71, causing first spring 76 to reset, driving slider 77 to reset a short distance within another slot 78. At this time, positioning block 72 releases its contact with fixed frame 6 and sliding sleeve 301, thereby reducing frictional resistance and facilitating the replacement of the rotating mechanism. This allows the non-climbing device 4 to quickly restore the normal function of the rotating mechanism when operating at high altitudes and before personnel have evacuated, preventing the jamming situation from worsening and causing the non-climbing device 4 to stop suddenly or lose control. At the same time, it eliminates the need for immediate shutdown and disassembly for maintenance, reducing downtime and lowering the safety risks of personnel remaining at high altitudes for extended periods.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A non-climbing lifting device for wind turbine towers, comprising a support assembly (1), wherein a controller (2) is provided on one side of the support assembly (1), characterized in that: A drive component (3) is provided on one side of the support component (1), and an anti-climb device (4) is provided on the drive component (3). The anti-climb device (4) is slidably connected to the support component (1). Two protective components (5) are provided on one side of the support component (1). Several fixed frames (6) are provided opposite to each other on one side of the anti-climb device (4). A push component (7) is provided inside the fixed frame (6). A bearing (8) is provided on the outer wall of the push component (7). A limit component (9) is provided on the outer wall of the bearing (8). The limit component (9) is connected to the support component (1). A linkage component (10) is provided inside the limit component (9). The linkage component (10) is connected to the fixed frame (6). An air jet component (20) is provided on one side of the fixed frame (6). Two replacement components (30) are provided opposite to each other inside the fixed frame (6). Several snap-fit ​​components (40) are provided inside the fixed frame (6).

2. The climbing-free lifting device for wind turbine towers according to claim 1, characterized in that: The support assembly (1) includes two vertical rods (11) fixedly connected to the inner wall of the wind turbine tower. Several horizontal rods (12) are evenly connected inside the two vertical rods (11). A slide rail (13) is fixedly connected to one side of the horizontal rod (12). The climb-free device (4) is slidably connected to the slide rail (13).

3. The climbing-free lifting device for wind turbine towers according to claim 2, characterized in that: The drive assembly (3) includes two fixed seats (31) fixedly connected to one side of the slide rail (13). Each fixed seat (31) is rotatably connected to a drive wheel (32). Each drive wheel (32) is connected to a traction rope (33). The non-climbing device (4) is fixedly connected to the traction rope (33).

4. The climbing-free lifting device for wind turbine towers according to claim 2, characterized in that: The protective component (5) includes two electric push rods (51) installed on one side of the two vertical rods (11). The movable ends of the two electric push rods (51) are fixedly connected to support plates (52). Two protective shells (53) are arranged opposite each other on one side of the support plates (52).

5. A non-climbing lifting device for wind turbine towers according to claim 1, characterized in that: The pushing component (7) includes two electromagnets (71) installed relative to each other in the fixed frame (6). Two positioning blocks (72) are slidably connected relative to each other in the fixed frame (6). A magnet block (73) is fixedly connected to one side of each of the two positioning blocks (72). A positioning shaft (74) is slidably connected to the outer wall of the two positioning blocks (72). A bearing (8) is fixedly connected to the outer wall of the positioning shaft (74). A first spring (76) is fixedly connected inside the positioning shaft (74). A rotating plate (75) is rotatably connected inside each of the two positioning blocks (72). The first spring (76) is fixedly connected to the rotating plate (75). A slider (77) is fixedly connected to the outer wall of each of the two positioning blocks (72). Two sliding grooves (78) and an arc groove (79) are respectively opened on the inner wall of the positioning shaft (74). The two sliding grooves (78) are connected to the arc groove (79). The slider (77) is slidably connected to the two sliding grooves (78) and the arc groove (79) respectively.

6. A non-climbing lifting device for wind turbine towers according to claim 2, characterized in that: The limiting assembly (9) includes two limiting rods (91) fixedly connected to both sides of the slide rail (13), and a roller (92) fixedly connected to the outer wall of the bearing (8). The roller (92) is in rolling connection with the limiting rod (91), and a speed sensor (93) is installed inside the roller (92).

7. A non-climbing lifting device for wind turbine towers according to claim 6, characterized in that: The linkage component (10) includes a first gear (101) fixedly connected to the roller (92), a second gear (102) meshing with one side of the first gear (101), two rotating shafts (103) fixedly connected to both sides of the second gear (102), both rotating shafts (103) being rotatably connected to the fixed frame (6), two eccentric wheels (104) fixedly connected to the outer wall of the two rotating shafts (103), a limit groove (105) being opened on one side of each of the two eccentric wheels (104), a rolling shaft (106) being rotatably connected in the limit groove (105), a moving rod (107) being rotatably connected to the outer wall of the rolling shaft (106), and the moving rod (107) being slidably connected to the fixed frame (6).

8. A non-climbing lifting device for wind turbine towers according to claim 7, characterized in that: The jet assembly (20) includes two sealing shells (201) fixedly connected to one side of the fixed frame (6). A piston (202) is slidably connected inside each of the two sealing shells (201). The piston (202) is fixedly connected to the moving rod (107). An air inlet pipe (203) is connected to one side of each of the two sealing shells (201). A first one-way valve (204) is connected to one end of the air inlet pipe (203). A first air outlet pipe (205) is connected to one side of each of the two sealing shells (201). A second one-way valve (206) is connected to one end of the first air outlet pipe (205), and a second air outlet pipe (207) is connected to one end of the second one-way valve (206). A jet disc (208) is connected to one end of the second air outlet pipe (207). The jet disc (208) is fixedly connected to the fixed frame (6). Several air outlet holes (209) are opened through one side of the jet disc (208).

9. A non-climbing lifting device for wind turbine towers according to claim 6, characterized in that: The replacement component (30) includes two sliding sleeves (301) that are slidably connected to the fixed frame (6). A rotating ring (302) is rotatably connected to each of the two sliding sleeves (301). A first toothed ring (303) is provided on one side of the rotating ring (302), and a second toothed ring (304) is provided in the roller (92). The shapes of the first toothed ring (303) and the second toothed ring (304) are matched.

10. A non-climbing lifting device for wind turbine towers according to claim 9, characterized in that: The snap-fit ​​assembly (40) includes a slide rod (401) slidably connected to the fixed frame (6), a connecting block (402) fixedly connected to the outer wall of the slide rod (401), the connecting block (402) slidably connected to the fixed frame (6), a second spring (403) fixedly connected to one side of the connecting block (402), and the other end of the second spring (403) fixedly connected to the inner wall of the fixed frame (6), and a slot (404) is provided on the outer wall of the sliding sleeve (301).

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