Operation and maintenance device for fan blade

Abstract

The utility model discloses a fan blade operation maintenance device which comprises a climbing device, a rotating device, a lifting structure and a first telescopic rod, the climbing device comprises a lifting assembly and clamping devices, the two ends of the lifting assembly are each connected with one clamping device, the side, away from the climbing device, of one clamping device is connected with the rotating device, and the rotating device is connected with the lifting structure. One end of the first telescopic rod is connected with the rotating device, and the other end of the first telescopic rod is connected with a lifting structure. The utility model belongs to the technical field of maintenance devices, and achieves the technical effects that the maintenance convenience of maintenance personnel is guaranteed, the safety of the maintenance personnel can be guaranteed, and the problem that the height needs to be adjusted by moving the whole device when the maintenance height needs to be changed is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of maintenance devices, and in particular to a fan blade operation and maintenance maintenance device. Background Art

[0002] At present, with the promotion and application of clean energy, wind power generation has been increasingly valued because of its advantages of being renewable, pollution-free and high energy. As the main power equipment in wind power generation, wind turbines can be used to convert the kinetic energy of wind into electrical energy. Wind turbines usually include a tower, a nacelle installed on the tower, and blades connected to the nacelle. After a certain period of operation, the wind turbine needs to inspect and maintain the blades to ensure the safety and stability of the wind turbine operation. At present, traditional wind turbine blade inspection devices mainly rely on manual climbing or simple hoisting equipment for inspection. This method has obvious limitations, such as long inspection distance, great safety hazards, and low efficiency. Especially for large wind turbines with extra-long blades, traditional inspection methods are difficult to meet the requirements of safe and efficient inspection. Although the prior art also produces some hanging basket inspection devices such as a wind turbine blade inspection device disclosed in Chinese patent CN117105138A, it is difficult to move to the position of the wind turbine blades and when the maintenance height needs to be changed, the adjustment requires the entire device to move to adjust the height, which is time-consuming, labor-intensive and wastes resources. Utility Model Content

[0003] To this end, the utility model provides a fan blade operation and maintenance device to solve the above-mentioned problems in the prior art.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] According to the first aspect of the utility model, a wind turbine blade operation and maintenance device includes a climbing device, a rotating device, a lifting structure and a first telescopic rod. The climbing device includes a lifting assembly and a clamping device. Both ends of the lifting assembly are connected to a clamping device, one of the clamping devices is connected to the rotating device on the side away from the climbing device, one end of the first telescopic rod is connected to the rotating device, and the other end of the first telescopic rod is connected to the lifting structure.

[0006] Furthermore, the climbing device also includes a lifting shell, and both ends of the lifting assembly are connected to a lifting shell, and the clamping devices are installed on the lifting shells one by one. A rotating device is installed on the side of one of the lifting shells away from the lifting assembly.

[0007] Further, each clamping device includes a first motor, a first gear, a second gear, a first rotating rod, a second rotating rod, a third rotating rod, and a climbing clamp. The first motor, the first gear, and the two second gears are all installed in the lifting housing. The output shaft of the first motor is connected to the first gear. The second gear is meshed and connected with the first gear. The side of the second gear is connected to the first rotating rod. One end of the first rotating rod away from the second gear is connected to the third rotating rod. One end of the third rotating rod away from the first rotating rod is connected to the climbing clamp. One end of the second rotating rod is rotatably connected to the lifting housing, and the other end of the second rotating rod is rotatably connected to the side of the third rotating rod.

[0008] Further, each clamping device also includes a mounting plate. The mounting plate is installed in the lifting housing. The first motor is installed on one side of the mounting plate. The first gear and the second gear are both located on the other side of the mounting plate. One end of the second rotating rod away from the third rotating rod is rotatably connected to the mounting plate, and the second gear is rotatably connected to the mounting plate.

[0009] Further, the lifting assembly includes at least one second telescopic rod. Both ends of each second telescopic rod are connected to a lifting housing.

[0010] Further, the rotating device includes a mounting housing, a rotating block, a second motor, a rotating shaft, and a transmission assembly. The mounting housing is installed on the side of the rotating device away from the climbing device. The transmission assembly is installed in the mounting housing. The side wall of the mounting housing is connected to the second motor. The output shaft of the second motor is connected to the transmission assembly. One end of the rotating shaft passes through the mounting housing and is connected to the transmission assembly. The other end of the rotating shaft is connected to the rotating block. The side wall of the rotating block is connected to one end of the first telescopic rod.

[0011] Further, the transmission assembly includes a third gear, a fourth gear, a worm gear, and a worm. The third gear and the fourth gear are both rotatably connected to the inner side wall of the mounting housing. The third gear is meshed with the fourth gear. The output shaft of the second motor is connected to the third gear. One end of the worm passes through the third gear and is rotatably connected to the first inner side wall of the mounting housing. The other end of the worm is rotatably connected to the second inner side wall of the mounting housing. The worm gear is rotatably connected to the bottom wall of the mounting housing. The worm gear is meshed and connected with the worm.

[0012] Further, the transmission assembly also includes a stabilizing rod and a stabilizing ring. One end of the stabilizing rod is connected to the inner side wall of the mounting housing, and the other end of the stabilizing rod is connected to the stabilizing ring. The stabilizing ring is sleeved on the rotating shaft.

[0013] Furthermore, the lifting structure includes a base plate, a top plate, a first connecting rod and a second connecting rod. The side wall of the base plate is connected to an end of the first telescopic rod facing away from the rotating device. The first connecting rod and the second connecting rod are rotatably connected. One end of the first connecting rod is rotatably connected to the top plate, and the other end of the first connecting rod is slidably connected to the base plate. One end of the second connecting rod is rotatably connected to the base plate, and the other end of the second connecting rod is slidably connected to the top plate.

[0014] Furthermore, the lifting structure also includes a lead screw, a nut, a third motor and a moving rod. The side wall of the top plate is installed with the third motor. The end of the moving rod is rotatably connected to the second connecting rod. The side of the moving rod is connected with a nut. One end of the lead screw passes through one side of the top plate and is connected to the output shaft of the motor. The other end of the lead screw is rotatably connected to the other side of the top plate, and the nut is cooperatively connected to the lead screw.

[0015] The utility model has the following advantages: through the setting of the climbing device, the device can be smoothly raised and lowered on the pole of the fan, and through the setting of the first telescopic rod, the device enables the maintenance personnel to adjust the lateral distance of the lifting structure relative to the fan blades according to actual conditions, and through the setting of the lifting structure, the maintenance personnel can perform secondary fine-tuning of the distance relative to the fan blades, thereby ensuring the convenience of maintenance for the maintenance personnel and the safety of the maintenance personnel, and avoiding the problem of adjusting the height by moving the entire device when changing the maintenance height. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0017] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0018] Figure 1 A three-dimensional diagram of a wind turbine blade operation, maintenance and repair device provided in some embodiments of the utility model.

[0019] Figure 2 A three-dimensional diagram of a climbing device of a wind turbine blade operation and maintenance device provided in some embodiments of the utility model.

[0020] Figure 3 A perspective view of the clamping device of a maintenance and repair device for a wind turbine blade provided in some embodiments of the present utility model.

[0021] Figure 4 A perspective view of the rotating device of a maintenance and repair device for a wind turbine blade provided in some embodiments of the present utility model.

[0022] Figure 5 An installation structure diagram of the transmission component of the rotating device of a maintenance and repair device for a wind turbine blade provided in some embodiments of the present utility model.

[0023] Figure 6 The first view of the perspective view of the lifting structure of a maintenance and repair device for a wind turbine blade provided in some embodiments of the present utility model.

[0024] Figure 7 The second view of the perspective view of the lifting structure of a maintenance and repair device for a wind turbine blade provided in some embodiments of the present utility model.

[0025] Figure 8 The partial enlarged view of the second view of the perspective view of the lifting structure of a maintenance and repair device for a wind turbine blade provided in some embodiments of the present utility model.

[0026] In the figure: 1, climbing device, 101, clamping device, 1011, mounting plate, 1012, first motor, 1013, first gear, 1014, second gear, 1015, first rotating rod, 1016, second rotating rod, 1017, third rotating rod, 1018, climbing clamp, 1019, fourth rotating rod, 102, lifting shell, 103, fixed mounting piece, 104, first connecting rod, 105, sliding mounting piece, 106, second connecting rod, 107, second telescopic rod, 108, mounting block, 109, mounting seat, 2, rotating device, 201, mounting shell, 203, rotating block, 204, second motor, 206, rotating shaft, 207, stabilizing rod, 208, third gear, 209, fourth gear, 210, worm gear, 211, worm, 212, stabilizing ring, 3, lifting structure, 301, bottom plate, 302, connecting rod connecting piece, 303, first connecting rod, 304, sliding plate, 305, pulley, 306, top plate, 307, motor mounting frame, 308, third motor, 309, second connecting rod, 310, lead screw, 311, moving rod, 312, lower baffle, 313, side plate, 314, nut, 4, first telescopic rod. Detailed implementation manners

[0027] The following is a specific embodiment of the present invention. People familiar with the technology can easily understand the other advantages and functions of the present invention from the contents disclosed in this specification. Obviously, the described embodiment is a part 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 creative work are within the scope of protection of the present invention.

[0028] like Figures 1 to 8 As shown, a wind turbine blade operation and maintenance device in an embodiment of the first aspect of the utility model comprises a climbing device 1, a rotating device 2, a lifting structure 3 and a first telescopic rod 4. The climbing device 1 comprises a lifting assembly and a clamping device 101. Both ends of the lifting assembly are connected to a clamping device 101, and one side of one clamping device 101 facing away from the climbing device 1 is connected to the rotating device 2, one end of the first telescopic rod 4 is connected to the rotating device 2, and the other end of the first telescopic rod 4 is connected to the lifting structure 3.

[0029] In the above embodiment, it should be noted that during operation, the maintenance personnel are located in the lifting structure 3.

[0030] The technical effect achieved by the above embodiment is as follows: through the setting of the climbing device 1, the device can be smoothly raised and lowered on the pole of the fan, and through the setting of the first telescopic rod 4, the device can realize that the maintenance personnel can adjust the lateral distance of the lifting structure 3 relative to the fan blades according to actual conditions. Through the setting of the lifting structure 3, the maintenance personnel can perform secondary fine-tuning of the distance relative to the fan blades, thereby ensuring the convenience of maintenance personnel while ensuring the safety of maintenance personnel, and avoiding the problem of adjusting the height by moving the entire device when changing the maintenance height.

[0031] Optional, such as Figures 1 to 8 As shown, in some embodiments, the climbing device 1 further includes a lifting shell 102, and a lifting shell 102 is connected to both ends of the lifting assembly, and the clamping devices 101 are installed on the lifting shells 102 in a one-to-one correspondence, and a rotating device 2 is installed on one side of one of the lifting shells 102 away from the lifting assembly;

[0032] Each clamping device 101 includes a first motor 1012, a first gear 1013, a second gear 1014, a first rotating rod 1015, a second rotating rod 1016, a third rotating rod 1017, and a climbing clamp 1018. The first motor 1012, the first gear 1013, and two second gears 1014 are all installed in the lifting housing 102. The output shaft of the first motor 1012 is connected to the first gear 1013. The second gear 1014 is meshed with the first gear 1013. One side of the second gear 1014 is connected to the first rotating rod 1015. One end of the first rotating rod 1015 away from the second gear 1014 is connected to the third rotating rod 1017. One end of the third rotating rod 1017 away from the first rotating rod 1015 is connected to the climbing clamp 1018. One end of the second rotating rod 1016 is rotatably connected to the lifting housing 102, and the other end of the second rotating rod 1016 is rotatably connected to the side of the third rotating rod 1017;

[0033] Each clamping device 101 further includes a mounting plate 1011. The mounting plate 1011 is installed in the lifting housing 102 by means of bolt connection, welding, clamping, bonding, etc. The first motor 1012 is installed on one side of the mounting plate 1011. The first gear 1013 and the second gear 1014 are both located on the other side of the mounting plate 1011. One end of the second rotating rod 1016 away from the third rotating rod 1017 is rotatably connected to the mounting plate 1011, and the second gear 1014 is rotatably connected to the mounting plate 1011.

[0034] Each clamping device 101 further includes two fourth rotating rods 1019. The number of the second gears 1014 and the first rotating rods 1015 is two. One of the second gears 1014 is meshed with the first gear 1013, and the two second gears 1014 are meshed with each other. The number of the second rotating rods 1016 is four, and the number of the third rotating rods 1017 and the climbing clamps 1018 is two. The two first rotating rods 1015 and the two second gears 1014 are integrally formed in one-to-one correspondence. One end of each fourth rotating rod 1019 is rotatably connected to the mounting plate 1011, and the other end of each fourth rotating rod 1019 is connected to one end of the third rotating rod 1017. The four second rotating rods 1016 are all rotatably connected between the third rotating rod 1017 and the mounting plate 1011.

[0035] The number of the second gears 1014, the first rotating rod 1015, the second rotating rod 1016, the third rotating rod 1017, and the climbing clamp 1018. The lifting assembly includes at least one second telescopic rod 107. Both ends of each second telescopic rod 107 are connected to a lifting housing 102.

[0036] In the above optional embodiments, it should be noted that the lifting assembly further includes a fixed mounting member 103, a plurality of first connecting rods 104, a sliding mounting member 105, a plurality of second connecting rods 106, a mounting block 108, and a mounting seat 109. The lower side wall of the upper lifting shell 102 is connected to the mounting seat 109 by means of bolt connection, welding, clamping, etc. The upper side wall of the lower lifting shell 102 is connected to the mounting seat 109 by means of bolt connection, welding, clamping, etc. Two fixed mounting members 103 and two sliding mounting members 105 are mounted on each mounting seat 109 by means of bolt connection, welding, clamping, etc. The two fixed mounting members 103 are respectively located on both sides of the second telescopic rod 107, and the two sliding mounting members 105 are respectively located on both sides of the second telescopic rod 107. A plurality of first connecting rods 104 and a plurality of second connecting rods 106 that are connected to each other are also provided on both sides of the second telescopic rod 107;

[0037] The plurality of first connecting rods 104 and the plurality of second connecting rods 106 on the same side are cross-connected one by one from the head to the tail, and the first connecting rod 104 and the second connecting rod 106 that are connected to each other are rotatable. The adjacent two first connecting rods 104 are parallel to each other, and the adjacent two second connecting rods 106 are parallel to each other. The first connecting rod 104 at the head end is rotatably connected to the corresponding fixed mounting member 103, the second connecting rod 106 at the head end is slidably connected to the corresponding sliding mounting member 105, the second connecting rod 106 at the tail end is rotatably connected to the corresponding fixed mounting member 103, and the first connecting rod 104 at the tail end is slidably connected to the corresponding sliding mounting member 105.

[0038] The working principle of the climbing device 1 is that when climbing is required, one first motor 1012 works to drive the first gear 1013 to rotate, which drives the second gear 1014 to rotate, driving the first rotating rod 1015, the second rotating rod 1016, the third rotating rod 1017, and the fourth rotating rod 1019 to work, driving the two climbing clips 1018 to fix the device to the rod body of the wind turbine. Then, the first motor 1012 of another clamping device works to drive the first gear 1013 to rotate, driving the second gear 1014 to rotate, driving the first rotating rod 1015, the second rotating rod 1016, the third rotating rod 1017, and the fourth rotating rod 1019 to work, driving the two climbing clips 1018 to separate the device from the rod body of the wind turbine. Then, the second telescopic rod 107 extends or retracts to achieve climbing.

[0039] Both the first telescopic rod 4 and the second telescopic rod 107 are electric telescopic rods.

[0040] Optionally, as Figures 1 to 8As shown, in some embodiments, the rotating device 2 includes a mounting shell 201, a rotating block 203, a second motor 204, a rotating shaft 206, and a transmission assembly. The mounting shell 201 is mounted on the side of the rotating device 2 facing away from the climbing device 1. A transmission assembly is installed inside the mounting shell 201. A second motor 204 is connected to the side wall of the mounting shell 201, and the output shaft of the second motor 204 is connected to the transmission assembly. One end of the rotating shaft 206 passes through the mounting shell 201 and is connected to the transmission assembly, and the other end of the rotating shaft 206 is connected to a rotating block 203. The side wall of the rotating block 203 is connected to one end of the first telescopic rod 4.

[0041] The connection between the first telescopic rod 4 and the rotating block 203 can be achieved by means such as clamping, inserting and then bonding, welding, or screwing.

[0042] The transmission assembly includes a third gear 208, a fourth gear 209, a worm gear 211, and a worm 210. The third gear 208 and the fourth gear 209 are rotatably connected to the inner side wall of the mounting shell 201. The third gear 208 meshes with the fourth gear 209. The output shaft of the second motor 204 is connected to the third gear 208. One end of the worm 210 passes through the third gear 208 and is rotatably connected to the first inner side wall of the mounting shell 201, and the other end of the worm 210 is rotatably connected to the second inner side wall of the mounting shell 201. The worm gear 211 is rotatably connected to the bottom wall of the mounting shell 201, and the worm gear 211 is meshed and connected with the worm 210.

[0043] In the above optional embodiments, it should be noted that the working principle of the rotating device 2 is that when it is necessary to adjust the position of the maintenance personnel, the second motor 204 works, driving the third gear 208 to rotate, driving the fourth gear 209 to rotate, driving the worm 210 to rotate, driving the worm gear 211 to rotate, driving the rotating shaft 206 to rotate, driving the rotating block 203 to rotate, and driving the first telescopic rod 4 to move clockwise or counterclockwise to realize the angle adjustment of the maintenance position of the maintenance personnel.

[0044] Optionally, as Figures 1 to 8 As shown, in some embodiments, the transmission assembly further includes a stabilizing rod 207 and a stabilizing ring 212. One end of the stabilizing rod 207 is connected to the inner side wall of the mounting shell 201, and the other end of the stabilizing rod 207 is connected to a stabilizing ring 212. The stabilizing ring 212 is sleeved on the rotating shaft 206.

[0045] The beneficial effect of the above optional embodiments is that the reliability of the operation of the rotating shaft 206 is ensured by the arrangement of the stabilizing rod 207 and the stabilizing ring 212.

[0046] Optionally, as Figures 1 to 8As shown, in some embodiments, the lifting structure 3 includes a bottom plate 301, a top plate 306, a first connecting rod 303, and a second connecting rod 309. The side wall of the bottom plate is connected to the end of the first telescopic rod 4 that is away from the rotating device 2. The first connecting rod 303 is rotatably connected to the second connecting rod 309. One end of the first connecting rod 303 is rotatably connected to the top plate 306, and the other end of the first connecting rod 303 is slidably connected to the bottom plate. One end of the second connecting rod 309 is rotatably connected to the bottom plate, and the other end of the second connecting rod 309 is slidably connected to the top plate 306.

[0047] In the above optional embodiments, it should be noted that a guardrail is installed on the upper surface of the top plate 306. The maintenance personnel are located on the top plate 306 and within the guardrail. The side surface of the top plate 306 is installed with a motor mounting bracket 307 by means of bolt connection or welding, etc. The first telescopic rod 4 is connected to the top plate 306 by means of screwing, bonding, clamping, welding, etc.

[0048] The lifting structure 3 further includes a lead screw 310, a nut 314, a third motor 308, and a moving rod 311. The side wall of the top plate 306 is installed with a third motor 308. The end of the moving rod 311 is rotatably connected to the second connecting rod 309. The side surface of the moving rod 311 is connected with a nut 314. One end of the lead screw 310 passes through one side of the top plate 306 and is connected to the output shaft of the motor, and the other end of the lead screw 310 is rotatably connected to the other side of the top plate 306. The nut 314 is in mating connection with the lead screw 310.

[0049] In the above optional embodiments, it should be noted that the lifting structure 3 further includes a sliding plate 304, a pulley 305, a lower baffle 312, and a side plate 313. Pulleys 305 are provided at both ends of the first connecting rod 303 and both ends of the second connecting rod 309. The surface of the bottom plate 301 is further provided with a sliding plate 304, and the pulley 305 abuts against the sliding plate 304. The bottom surface of the moving rod 311 is connected with a lower baffle 312 by means of welding or screwing, etc. The nut 314 is welded to the lower baffle 312 and abuts against the bottom plate 301.

[0050] The beneficial effects of the above optional embodiments are as follows: The setting of the lifting structure 3 enables the maintenance personnel to only need to adjust the lifting structure 3 when preparing to finely adjust the maintenance height.

[0051] Although the present invention has been described in detail above with general descriptions and specific embodiments, based on the present invention, some modifications or improvements can be made, which are obvious to those skilled in the art. Therefore, these modifications or improvements made without departing from the spirit of the present invention all fall within the scope of protection required by the present invention.

[0052] Terms such as "upper", "lower", "left", "right", "middle", etc. cited in this specification are only for the convenience of clear description and are not used to limit the scope of implementation of the present utility model. The change or adjustment of their relative relationship, without substantial change in the technical content, should also be regarded as the scope of implementation of the present utility model.

Claims

1. A maintenance and repair device for a fan blade, characterized in that, It includes a climbing device (1), a rotating device (2), a lifting structure (3) and a first telescopic rod (4). The climbing device (1) includes a lifting assembly and a clamping device (101). Both ends of the lifting assembly are connected with one clamping device (101). One side of one clamping device (101) facing away from the climbing device (1) is connected with the rotating device (2). One end of the first telescopic rod (4) is connected with the rotating device (2), and the other end of the first telescopic rod (4) is connected with the lifting structure (3).

2. The operation and maintenance inspection device for a fan blade according to claim 1, wherein, The climbing device (1) further includes a lifting housing (102). Both ends of the lifting assembly are connected with one lifting housing (102). The clamping devices (101) are respectively installed on the lifting housing (102). One side of one lifting housing (102) facing away from the lifting assembly is installed with the rotating device (2).

3. The operation and maintenance inspection device for a fan blade according to claim 2, wherein, Each clamping device (101) includes a first motor (1012), a first gear (1013), a second gear (1014), a first rotating rod (1015), a second rotating rod (1016), a third rotating rod (1017) and a climbing clamp (1018). The first motor (1012), the first gear (1013) and two second gears (1014) are all installed in the lifting housing (102). The output shaft of the first motor (1012) is connected with the first gear (1013). The second gear (1014) is meshed and connected with the first gear (1013). The side of the second gear (1014) is connected with the first rotating rod (1015). One end of the first rotating rod (1015) facing away from the second gear (1014) is connected with the third rotating rod (1017). One end of the third rotating rod (1017) facing away from the first rotating rod (1015) is connected with the climbing clamp (1018). One end of the second rotating rod (1016) is rotatably connected with the lifting housing (102), and the other end of the second rotating rod (1016) is rotatably connected to the side of the third rotating rod (1017).

4. The operation and maintenance inspection device for a fan blade according to claim 3, wherein, Each clamping device (101) further includes a mounting plate (1011). The mounting plate (1011) is installed in the lifting housing (102). The first motor (1012) is installed on one side of the mounting plate (1011). The first gear (1013) and the second gear (1014) are both located on the other side of the mounting plate (1011). One end of the second rotating rod (1016) facing away from the third rotating rod (1017) is rotatably connected with the mounting plate (1011). The second gear (1014) is rotatably connected with the mounting plate (1011).

5. The operation and maintenance inspection device for a fan blade according to claim 2, characterized in that, The lifting assembly includes at least one second telescopic rod (107). Both ends of each second telescopic rod (107) are connected with one lifting housing (102).

6. The operation and maintenance inspection device for a fan blade according to claim 2, wherein, The rotating device (2) comprises a mounting shell (201), a rotating block (203), a second motor (204), a rotating shaft (206) and a transmission assembly. The mounting shell (201) is mounted on a side of the rotating device (2) away from the climbing device (1). The transmission assembly is mounted in the mounting shell (201). The side wall of the mounting shell (201) is connected to the second motor (204). The output shaft of the second motor (204) is connected to the transmission assembly. One end of the rotating shaft (206) passes through the mounting shell (201) and is connected to the transmission assembly. The other end of the rotating shaft (206) is connected to the rotating block (203). The side wall of the rotating block (203) is connected to one end of the first telescopic rod (4).

7. The operation and maintenance inspection device for a fan blade according to claim 6, characterized in that, The transmission assembly comprises a third gear (208), a fourth gear (209), a worm wheel (211) and a worm (210); the third gear (208) and the fourth gear (209) are both rotatably connected to the inner wall of the mounting shell (201); the third gear (208) is meshed with the fourth gear (209); the output shaft of the second motor (204) is connected to the third gear (208); one end of the worm (210) passes through the third gear (208) and is rotatably connected to the first inner wall of the mounting shell (201); the other end of the worm (210) is rotatably connected to the second inner wall of the mounting shell (201); the worm wheel (211) is rotatably connected to the bottom wall of the mounting shell (201); and the worm wheel (211) is meshed with the worm (210).

8. The operation and maintenance inspection device for a fan blade according to claim 7, characterized in that, The transmission assembly further comprises a stabilizing rod (207) and a stabilizing ring (212); one end of the stabilizing rod (207) is connected to the inner wall of the mounting shell (201); the other end of the stabilizing rod (207) is connected to the stabilizing ring (212); and the stabilizing ring (212) is sleeved on the rotating shaft (206).

9. The operation and maintenance inspection device for a fan blade according to claim 1, characterized in that, The lifting structure (3) includes a bottom plate, a top plate (306), a first connecting rod (303) and a second connecting rod (309); a side wall of the bottom plate is connected to an end of the first telescopic rod (4) facing away from the rotating device (2); the first connecting rod (303) and the second connecting rod (309) are rotatably connected; one end of the first connecting rod (303) is rotatably connected to the top plate (306); the other end of the first connecting rod (303) is slidably connected to the bottom plate; one end of the second connecting rod (309) is rotatably connected to the bottom plate; and the other end of the second connecting rod (309) is slidably connected to the top plate (306).

10. The operation and maintenance inspection device for a fan blade according to claim 9, wherein, The lifting structure (3) further includes a lead screw (310), a nut (314), a third motor (308) and a moving rod (311). The third motor (308) is installed on the side wall of the top plate (306). The end of the moving rod (311) is rotatably connected to the second connecting rod (309). The nut (314) is connected to the side of the moving rod (311). One end of the lead screw (310) passes through one side of the top plate (306) and is connected to the output shaft of the motor. The other end of the lead screw (310) is rotatably connected to the other side of the top plate (306). The nut (314) is connected in cooperation with the lead screw (310).

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