A high-stability wind turbine impeller removal device and removal method thereof

Abstract

The present invention belongs to the technical field of wind turbines, and in particular relates to a highly stable wind turbine impeller removal device and a removal method thereof, comprising a nacelle, a hub, a rotating shaft mounted on the nacelle, and a fan blade mounted outside the hub, wherein the hub is fixedly inserted outside the rotating shaft, a fixing flange is fixedly connected to the side of the hub close to the nacelle, a positioning flange is fixedly connected to the outside of the nacelle, three lifting ears are evenly fixedly connected to the outside of the hub, a cable is fixedly connected to the lifting ears, and a synchronous force-bearing mechanism that abuts against the outside of the rotating shaft is fixedly installed on the fixing flange. The present invention makes the force uniform at each position of the hub and the rotating shaft, avoids the problem of excessive friction resistance caused by excessive squeezing force between one side of the hub and the rotating shaft, and affects rapid separation, effectively avoids excessive shaking of the fan impeller caused by excessive inertia force when the hub is separated from the rotating shaft, and makes the removal of the fan impeller more stable and safe.

Description

Technical Field

[0001] The present invention belongs to the technical field of wind turbines, and in particular relates to a highly stable wind turbine impeller removal device and a removal method thereof. Background Art

[0002] Wind turbines generally refer to wind generators. Wind turbines are systems that convert wind kinetic energy into electrical energy. When a wind turbine needs to be relocated and rebuilt or scrapped, it is necessary to dismantle the wind turbine. Dismantling the wind turbine impeller is a very important part. When installing the wind turbine impeller, it is first inserted into the shaft on the nacelle, and then external force is used to press the impeller and the shaft to completely fix them. It is then fixed to the nacelle with a series of bolts. When dismantling is required, the following problems may arise:

[0003] During the dismantling of the fan impeller, a crane and multiple pulling ropes are used to connect the fan impeller, and traction is used to separate the fan impeller hub from the rotating shaft in the horizontal direction. However, due to the uneven pulling force on the hub limit in each direction, the extrusion force between the hub and the rotating shaft in each direction is different, and the central axis of the hub and the rotating shaft cannot be kept consistent with the central axis in the force direction. Due to the heavy weight of the fan impeller, this will cause large friction resistance between the hub and the rotating shaft during the separation process, making the dismantling work very inconvenient. Moreover, because the required traction force is greater, a huge inertial force is generated at the moment the fan impeller is separated from the rotating shaft, causing the fan impeller to shake greatly, posing a great safety hazard.

[0004] To this end, we propose a highly stable wind turbine impeller removal device and a removal method thereof to solve the above problems. Summary of the Invention

[0005] The object of the present invention is to provide a highly stable wind turbine impeller removal device and a removal method thereof in response to the above-mentioned problems.

[0006] To achieve the above-mentioned objectives, the present invention adopts the following technical solutions: a high-stability wind turbine impeller removal device, comprising a nacelle, a hub, a rotating shaft installed on the nacelle and a wind blade installed outside the hub, the hub is fixedly inserted outside the rotating shaft, the hub is fixedly connected to a fixing flange on the side close to the nacelle, the outer side of the nacelle is fixedly connected to a positioning flange, three lifting ears are evenly fixedly connected to the outer side of the hub, a cable wind rope is fixedly connected to the lifting ear, a synchronous force-bearing mechanism that is in contact with the outside of the rotating shaft is fixedly installed on the fixing flange, three pulling force compensation and control mechanisms corresponding to the position of the cable wind rope are fixedly connected to the outer side of the corresponding positioning flange of the nacelle, a plurality of anti-rebound buffer mechanisms are symmetrically fixedly installed between the hub and the nacelle, and an elastic compensation pull-back mechanism is fixedly connected between the end of the anti-rebound buffer mechanism close to the hub and the hub.

[0007] In the above-mentioned high-stability wind turbine impeller dismantling device, the synchronous force-bearing mechanism includes three arc-shaped contact plates that are evenly in contact with the outside of the rotating shaft, and the three arc-shaped contact plates correspond to the positions of three wind ropes. The outer side of the arc-shaped contact plate is fixedly connected with an L-shaped connecting rod, and the end of the L-shaped connecting rod away from the arc-shaped contact plate is fixedly connected with an arc-shaped side plate. The arc-shaped side plate contacts the outside of the fixed flange, and the side wall of the arc-shaped side plate is fixedly connected with a plurality of locking studs. The surface of the fixed flange is provided with a plurality of through holes corresponding to the locking studs, and a locking nut is threadedly sleeved on the outer side of one end of the locking stud. A pressure self-sensing control mechanism is fixedly embedded on the inner side of the arc-shaped contact plate, and two adjacent arc-shaped contact plates are fixedly clamped by a limiting connection mechanism.

[0008] In the above-mentioned high-stability wind turbine impeller removal device, the pulling force compensation and control mechanism includes a fastening plate fixedly connected to the positioning flange by bolts, the lower end of the fastening plate is integrally connected with a U-shaped support plate, the U-shaped support plate is sleeved outside the cable wind rope, and the outer side of the cable wind rope is fixedly sleeved with a reaction plate, the upper end of the U-shaped support plate is fixedly embedded with two electromagnetic blocks for dust removal, and the lower end of the reaction plate is symmetrically fixed with two permanent magnet blocks.

[0009] In the above-mentioned high-stability wind turbine impeller removal device, the anti-rebound buffer mechanism includes two mounting plates, the mounting plate located at the rear side is fixedly connected to the cabin, and multiple limiting telescopic rods are symmetrically fixedly connected between the two mounting plates. A foldable compressed water bag is also fixedly installed between the two mounting plates, and a water supply pipe is fixedly installed on the foldable compressed water bag, and a one-way valve is provided on the water supply pipe.

[0010] In the above-mentioned high-stability wind turbine impeller removal device, the elastic compensation pullback mechanism includes a fixed plate fixedly mounted on the outside of the hub, a plurality of pullback compensation springs are fixedly connected between the fixed plate and the mounting plate, a plurality of guide slide rods are symmetrically fixedly connected to the side wall of the fixed plate, one end of the guide slide rod passes through the side wall of the mounting plate through a through hole opened in the side wall of the mounting plate, and is fixedly connected to an anti-slip plate, and a damping rubber block is also fixedly connected to the surface of the fixed plate.

[0011] In the above-mentioned high-stability wind turbine impeller removal device, the pressure self-sensing control mechanism includes a packaging shell, a ceramic diaphragm is fixedly connected to the outside of the packaging shell, and a plurality of thick film resistors located behind the ceramic diaphragm are fixedly installed inside the packaging shell.

[0012] In the above-mentioned high-stability wind turbine impeller removal device, the limiting connection mechanism includes an arc-shaped connecting plate, and the outer sides of both ends of the arc-shaped contact plate are fixedly connected with T-shaped clamping blocks, and the inner sides of both ends of the arc-shaped connecting plate are provided with T-shaped clamping grooves that match and clamp with the T-shaped clamping blocks. The arc-shaped connecting plate and the T-shaped clamping block are fixedly connected by multiple bolts.

[0013] A method for removing a wind turbine impeller with high stability, comprising the following steps:

[0014] S1. Stably connect the three guy cables to the hub through the lifting lugs, and apply a pulling force to the hub through the external crane and the guy cables.

[0015] S2. Place the curved contact plate on the outside of the shaft, insert the locking studs into the through-holes in the sidewall of the fixed flange, and secure them with the locking nuts. Then, by engaging the T-shaped block and T-shaped slot, the curved connecting plate securely connects the two adjacent curved contact plates together, ensuring that the three curved contact plates are perfectly round and in stable contact with the shaft.

[0016] S3. Under the action of external force, the wheel hub gradually separates from the rotating shaft. The relative stress of the wheel hub on the rotating shaft is fed back to the force change between the arc-shaped contact plate and the rotating shaft. The arc-shaped contact plate is embedded in an encapsulation shell, which houses a ceramic diaphragm and thick-film resistor. The corresponding force between the arc-shaped contact plate and the rotating shaft squeezes the ceramic diaphragm, causing it to slightly deform. Thick-film resistors are printed on the back of the ceramic diaphragm and connected to form a Wheatstone bridge. The bridge generates a highly linear signal proportional to the pressure and a voltage signal proportional to the excitation voltage. That is, the greater the pressure between the arc-shaped contact plate and the rotating shaft, the smaller the resistance, resulting in a larger current flow and stronger magnetism of the electromagnetic block. The electromagnetic block and the permanent magnet block have the same magnetic properties, which enables the reaction plate to cooperate with the outward pull of the cable to provide further directional compensation force on the wheel hub. According to the actual position of the wheel hub, the contact force of the wheel hub relative to the rotating shaft in all directions is adaptively controlled to ensure that the central axis of the wheel hub and the rotating shaft is consistent with the central axis of the force direction, thereby accelerating the separation of the wheel hub from the rotating shaft.

[0017] S4. In the process of the wheel hub moving outward and separating from the rotating shaft, one end of the foldable compressed water bag is driven to move synchronously, thereby expanding the foldable compressed water bag, and cooperating with the water supply pipe to inject water into the foldable compressed water bag from the outside. When the wheel hub is completely separated from the rotating shaft, the wheel hub continues to move forward due to inertia. At this time, the limiting telescopic rod has extended to the longest position. The wheel hub drives the fixed plate to continue moving forward, cooperating with the guide slide bar to achieve linear movement, and synchronously stretching the pullback compensation spring. The rebound force generated by the deformation of the pullback compensation spring is used to pull the wheel hub back. When the wheel hub moves back, it is first buffered and shock-absorbing by cooperating with the damping rubber block. At this time, the foldable compressed water bag is filled with water, which can also provide effective anti-rebound buffering and reduce the shaking of the fan impeller.

[0018] Compared with the existing technology, the beneficial effects of the present invention are:

[0019] 1. By setting the nacelle, wheel hub, rotating shaft, fan blades, fixing flange, positioning flange, lifting lug, cable wind rope, synchronous force-bearing mechanism, pulling force compensation control mechanism, and pressure self-sensing control mechanism, the force at each position of the wheel hub and the rotating shaft can be uniform when the wheel hub is separated from the rotating shaft, avoiding the problem of excessive friction resistance caused by excessive squeezing pressure between one side of the wheel hub and the rotating shaft, which affects the rapid separation, and ensuring the separation quality and efficiency of the wheel hub and the rotating shaft.

[0020] 2. Through the provided fixing flange and positioning flange, the synchronous force-bearing mechanism is directly connected to the original fixing flange on the wheel hub, and the pulling force compensation and control mechanism is directly installed based on the positioning flange outside the nacelle. It can assist in the quick removal of the wheel hub without damaging the wheel hub and the nacelle, and is easy to use.

[0021] 3. The anti-rebound buffer mechanism and elastic compensation pullback mechanism can provide an effective pullback buffer compensation for the hub at the moment the hub and the rotating shaft are separated, effectively avoiding excessive shaking of the fan impeller caused by excessive inertia force when the hub and the rotating shaft are separated, making the removal of the fan impeller more stable and safe.

[0022] To sum up: the present invention ensures uniform force at all positions of the hub and the rotating shaft, avoids the problem of excessive friction resistance caused by excessive squeezing pressure between one side of the hub and the rotating shaft, and affects rapid separation, and effectively avoids excessive inertia force when the hub and the rotating shaft are separated, which causes excessive shaking of the fan impeller, making the removal of the fan impeller more stable and safe. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a side structural schematic diagram of a high-stability wind turbine impeller removal device provided by the present invention;

[0024] Figure 2This is a front view structural diagram of the connection between the hub and the blades of a high-stability wind turbine impeller removal device provided by the present invention;

[0025] Figure 3 This is a structural schematic diagram of a synchronous force-bearing mechanism of a high-stability wind turbine impeller removal device provided by the present invention;

[0026] Figure 4 This is a structural schematic diagram of a pulling force compensation and control mechanism of a high-stability wind turbine impeller removal device provided by the present invention;

[0027] Figure 5 This is a structural schematic diagram of an anti-rebound buffer mechanism of a high-stability wind turbine impeller removal device provided by the present invention;

[0028] Figure 6 This is a structural schematic diagram of a limiting connection mechanism of a high-stability wind turbine impeller removal device provided by the present invention;

[0029] Figure 7 The present invention provides a schematic structural diagram of a pressure self-sensing control mechanism for a high-stability wind turbine impeller removal device.

[0030] In the figure: 1. Nacelle; 2. Hub; 3. Rotating shaft; 4. Fan blade; 5. Fixing flange; 6. Positioning flange; 7. Lifting lug; 8. Cable; 9. Synchronous force-bearing mechanism; 91. Arc-shaped contact plate; 92. L-shaped connecting rod; 93. Arc-shaped side plate; 94. Locking stud; 95. Through hole; 96. Locking nut; 10. Pulling force compensation and control mechanism; 101. Fastening plate; 102. U-shaped support plate; 103. Reaction plate; 104. Electromagnetic block; 105. Permanent magnet block; 11. Anti-rebound buffer mechanism; 111. Mounting plate; 112, limit telescopic rod; 113, foldable compressed water bag; 114, water supply pipe; 115, one-way valve; 12, elastic compensation pullback mechanism; 121, fixing plate; 122, pullback compensation spring; 123, guide slide bar; 124, anti-slip plate; 125, damping rubber block; 13, pressure self-sensing control mechanism; 131, packaging shell; 132, ceramic diaphragm; 133, thick film resistor; 14, limit connection mechanism; 141, arc-shaped connecting plate; 142, T-shaped clamping block; 143, T-shaped slot. DETAILED DESCRIPTION

[0031] The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0032] like Figure 1-7As shown, a high-stability wind turbine impeller removal device includes a nacelle 1, a hub 2, a rotating shaft 3 installed on the nacelle 1 and a fan blade 4 installed outside the hub 2. The hub 2 is fixedly inserted outside the rotating shaft 3. A fixing flange 5 is fixedly connected to the side of the hub 2 close to the nacelle 1. A positioning flange 6 is fixedly connected to the outside of the nacelle 1. Three lifting ears 7 are evenly fixedly connected to the outside of the hub 2. A cable 8 is fixedly connected to the lifting ears 7. A synchronous force-bearing mechanism 9 is fixedly installed on the fixed flange 5 and contacts the outside of the rotating shaft 3. The synchronous force-bearing mechanism 9 includes three evenly contact The arc-shaped contact plate 91 outside the rotating shaft 3 has three arc-shaped contact plates 91 corresponding to the positions of the three guy ropes 8. An L-shaped connecting rod 92 is fixedly connected to the outer side of the arc-shaped contact plate 91. An end of the L-shaped connecting rod 92 away from the arc-shaped contact plate 91 is fixedly connected to an arc-shaped side plate 93. The arc-shaped side plate 93 contacts the outside of the fixed flange 5. The side wall of the arc-shaped side plate 93 is fixedly connected to a plurality of locking studs 94. A plurality of through holes 95 corresponding to the locking studs 94 are provided on the surface of the fixed flange 5. A locking nut 96 is threadedly sleeved on the outer side of one end of the locking stud 94.

[0033] The cabin 1 corresponds to the positioning flange 6 and is fixedly connected to the outside of the positioning flange 6 with three pulling force compensation and control mechanisms 10 corresponding to the positions of the cable wind rope 8. The pulling force compensation and control mechanism 10 includes a fastening plate 101 fixedly connected to the positioning flange 6 by bolts. The lower end of the fastening plate 101 is integrally connected with a U-shaped support plate 102. The U-shaped support plate 102 is sleeved on the outside of the cable wind rope 8. The outer side of the cable wind rope 8 is fixedly sleeved with a reaction plate 103. The upper end of the U-shaped support plate 102 is fixedly embedded with two electromagnetic blocks 104 for dust removal, and the lower end of the reaction plate 103 is symmetrically fixed with two permanent magnet blocks 105.

[0034] A plurality of anti-rebound buffer mechanisms 11 are symmetrically fixedly installed between the wheel hub 2 and the cabin 1. The anti-rebound buffer mechanism 11 includes two mounting plates 111. The rear mounting plate 111 is fixedly connected to the cabin 1. A plurality of limiting telescopic rods 112 are symmetrically fixedly connected between the two mounting plates 111. A foldable compressed water bag 113 is also fixedly installed between the two mounting plates 111. A water supply pipe 114 is fixedly installed on the foldable compressed water bag 113, and a one-way valve 115 is provided on the water supply pipe 114.

[0035] An elastic compensating pullback mechanism 12 is fixedly connected between the end of the anti-rebound buffer mechanism 11 close to the wheel hub 2 and the wheel hub 2. The elastic compensating pullback mechanism 12 includes a fixed plate 121 fixedly installed on the outside of the wheel hub 2. A plurality of pullback compensation springs 122 are fixedly connected between the fixed plate 121 and the mounting plate 111. A plurality of guide slide rods 123 are symmetrically fixedly connected to the side wall of the fixing plate 121. One end of the guide slide rod 123 passes through the side wall of the mounting plate 111 through the through hole 95 opened in the side wall of the mounting plate 111, and is fixedly connected to an anti-slip plate 124. A damping rubber block 125 is also fixedly connected to the surface of the fixing plate 121.

[0036] A pressure self-sensing control mechanism 13 is fixedly embedded on the inner side of the arc-shaped resistance plate 91. The pressure self-sensing control mechanism 13 includes a packaging shell 131. A ceramic diaphragm 132 is fixedly connected to the outer side of the packaging shell 131. A plurality of thick film resistors 133 located on the rear side of the ceramic diaphragm 132 are also fixedly installed inside the packaging shell 131.

[0037] The two adjacent arc-shaped contact plates 91 are fixedly connected by a limiting connection mechanism 14. The limiting connection mechanism 14 includes an arc-shaped connecting plate 141. The outer sides of both ends of the arc-shaped contact plate 91 are fixedly connected with T-shaped clamping blocks 142. The inner sides of both ends of the arc-shaped connecting plate 141 are provided with T-shaped clamping grooves 143 that match and clamp with the T-shaped clamping blocks 142. The arc-shaped connecting plate 141 and the T-shaped clamping blocks 142 are fixedly connected by multiple bolts.

[0038] The operating principle of the present invention is described as follows: the three cables 8 are stably connected to the hub 2 through the lifting ears 7, and the external hoist cooperates with the cables 8 to apply a pulling and holding force to the hub 2, and the arc-shaped contact plate 91 is placed on the outside of the rotating shaft 3, and the locking stud 94 is inserted into the through hole 95 on the side wall of the fixing flange 5 and fixed by the locking nut 96 to achieve the fixation of the arc-shaped contact plate 91, and then the arc-shaped connecting plate 141 stably connects the two adjacent arc-shaped contact plates 91 together through the matching engagement of the T-shaped block 142 and the T-shaped slot 143, and ensures that the three arc-shaped contact plates 91 are in a complete roundness and stably contacted with the rotating shaft 3. Then, the hub 2 gradually separates from the shaft 3 under the action of external force, and the relative stress of the hub 2 on the shaft 3 is fed back to the force change between the arc-shaped contact plate 91 and the shaft 3. The package shell 131 embedded in the arc-shaped contact plate 91 has a ceramic diaphragm 132 and a thick film resistor 133 installed in the package shell 131. The corresponding force between the arc-shaped contact plate 91 and the shaft 3 squeezes the ceramic diaphragm 132, causing the ceramic diaphragm 132 to produce a slight deformation. The thick film resistor 133 is printed on the back of the ceramic diaphragm 132, which is connected to form a Wheatstone bridge. The bridge generates a high linearity proportional to the pressure and a voltage signal proportional to the excitation voltage, that is, the pressure between the arc-shaped contact plate 91 and the shaft 3. The larger the value, the smaller the resistance, so that the amount of current flowing through the electromagnetic block 104 is large and the magnetism is stronger. The electromagnetic block 104 and the permanent magnet block 105 have the same magnetism, so that the reaction plate 103 cooperates with the cable wind rope 8 to pull outward, providing further directional compensation force for the hub 2. According to the actual position of the hub 2, the contact force of the hub 2 relative to the rotating shaft 3 in all directions is adaptively regulated, so that the central axis of the hub 2 and the rotating shaft 3 is consistent with the central axis of the force direction, so that the separation of the hub 2 and the rotating shaft 3 is faster. In the process of the hub 2 moving outward and separating from the rotating shaft 3, one end of the folding compressed water bag 113 is driven to move synchronously, so that the folding compressed water bag 113 is unfolded, and cooperates with the water supply pipe 1 14 Water is injected into the foldable compressed water bag 113 from the outside. When the wheel hub 2 is completely separated from the rotating shaft 3, the wheel hub 2 continues to move forward due to inertia. At this time, the limiting telescopic rod 112 has extended to the longest position. The wheel hub 2 drives the fixed plate 121 to continue to move forward, cooperates with the guide slide bar 123 to achieve linear movement, and simultaneously stretches the pull-back compensation spring 122. The rebound force generated by the deformation of the pull-back compensation spring 122 is used to pull the wheel hub 2 back. When the wheel hub 2 moves back, it first cooperates with the damping rubber block 125 to buffer and reduce shock to the wheel hub 2. At this time, the foldable compressed water bag 113 is filled with water, which can also provide effective anti-rebound buffering and reduce the shaking of the fan impeller.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high-stability wind turbine impeller removal device, comprising a nacelle (1), a hub (2), a rotating shaft (3) mounted on the nacelle (1), and a wind blade (4) mounted outside the hub (2), characterized in that: The hub (2) is fixedly inserted outside the rotating shaft (3), the hub (2) is fixedly connected to a fixed flange (5) on the side close to the cabin (1), the outside of the cabin (1) is fixedly connected to a positioning flange (6), the outside of the hub (2) is evenly fixedly connected to three lifting ears (7), the lifting ears (7) are fixedly connected to a cable wind rope (8), the fixing flange (5) is fixedly provided with a synchronous force-bearing mechanism (9) that abuts against the outside of the rotating shaft (3), the cabin (1) is fixedly connected to three pulling force compensation control mechanisms (10) corresponding to the positions of the cable wind rope (8) outside the corresponding positioning flange (6), a plurality of anti-rebound buffer mechanisms (11) are symmetrically fixedly installed between the hub (2) and the cabin (1), and an elastic compensation pull-back mechanism (12) is fixedly connected between the end of the anti-rebound buffer mechanism (11) close to the hub (2) and the hub (2); The synchronous force-bearing mechanism (9) comprises three arc-shaped contact plates (91) uniformly contacting the outside of the rotating shaft (3), the three arc-shaped contact plates (91) corresponding to the positions of the three cables (8), the outer side of the arc-shaped contact plate (91) is fixedly connected with an L-shaped connecting rod (92), and one end of the L-shaped connecting rod (92) away from the arc-shaped contact plate (91) is fixedly connected with an arc-shaped side plate (93), the arc-shaped side plate (93) contacts the outside of the fixed flange (5), and the arc-shaped side plate (93) contacts the outside of the fixed flange (5). The side wall of the side plate (93) is fixedly connected with a plurality of locking studs (94), the surface of the fixing flange (5) is provided with a plurality of through holes (95) corresponding to the locking studs (94), and a locking nut (96) is threadedly sleeved on the outer side of one end of the locking stud (94), and a pressure self-sensing regulating mechanism (13) is fixedly embedded on the inner side of the arc-shaped contact plate (91), and two adjacent arc-shaped contact plates (91) are fixedly connected by a limiting connection mechanism (14).

2. A high-stability wind turbine impeller removal device according to claim 1, characterized in that: The pulling force compensation and control mechanism (10) comprises a fastening plate (101) fixedly connected to the positioning flange (6) by bolts, the lower end of the fastening plate (101) is integrally connected with a U-shaped support plate (102), the U-shaped support plate (102) is sleeved outside the cable wind rope (8), and the outer side of the cable wind rope (8) is fixedly sleeved with a reaction plate (103), the upper end of the U-shaped support plate (102) is fixedly embedded with two electromagnetic blocks (104) for dust removal, and the lower end of the reaction plate (103) is symmetrically fixedly installed with two permanent magnet blocks (105).

3. A high-stability wind turbine impeller removal device according to claim 2, characterized in that: The anti-rebound buffer mechanism (11) comprises two mounting plates (111), wherein the mounting plate (111) located at the rear side is fixedly connected to the cabin (1), and a plurality of position-limiting telescopic rods (112) are symmetrically fixedly connected between the two mounting plates (111). A foldable compressed water bag (113) is also fixedly installed between the two mounting plates (111), and a water supply pipe (114) is fixedly installed on the foldable compressed water bag (113), and a one-way valve (115) is provided on the water supply pipe (114).

4. A high-stability wind turbine impeller removal device according to claim 3, characterized in that: The elastic compensation pull-back mechanism (12) includes a fixed plate (121) fixedly mounted on the outside of the wheel hub (2), a plurality of pull-back compensation springs (122) fixedly connected between the fixed plate (121) and the mounting plate (111), a plurality of guide slides (123) symmetrically fixedly connected to the side wall of the fixed plate (121), one end of the guide slide (123) passes through the side wall of the mounting plate (111) through a through hole (95) opened in the side wall of the mounting plate (111), and is fixedly connected to an anti-slip plate (124), and a damping rubber block (125) is also fixedly connected to the surface of the fixed plate (121).

5. The high-stability wind turbine impeller removal device according to claim 4, characterized in that: The pressure self-sensing regulating mechanism (13) comprises a packaging shell (131), a ceramic diaphragm (132) is fixedly connected to the outside of the packaging shell (131), and a plurality of thick film resistors (133) located on the rear side of the ceramic diaphragm (132) are fixedly installed inside the packaging shell (131).

6. A high-stability wind turbine impeller removal device according to claim 5, characterized in that: The position limiting connection mechanism (14) comprises an arc-shaped connecting plate (141), the outer sides of both ends of the arc-shaped contact plate (91) are fixedly connected with T-shaped clamping blocks (142), the inner sides of both ends of the arc-shaped connecting plate (141) are provided with T-shaped clamping grooves (143) that match and clamp with the T-shaped clamping blocks (142), and the arc-shaped connecting plate (141) and the T-shaped clamping blocks (142) are fixedly connected by a plurality of bolts.

7. A high-stability wind turbine impeller removal method, which uses the high-stability wind turbine impeller removal device according to claim 6, characterized in that: The steps include: S1. The three guy ropes (8) are stably connected to the hub (2) through the lifting lugs (7), and a pulling and holding force is applied to the hub (2) by the external crane in conjunction with the guy ropes (8); S2. Place the arc-shaped contact plate (91) on the outside of the rotating shaft (3), and insert the locking stud (94) into the through hole (95) of the side wall of the fixed flange (5), and fix it by the locking nut (96) to achieve the fixation of the arc-shaped contact plate (91), and then make the arc-shaped connecting plate (141) stably connect the two adjacent arc-shaped contact plates (91) together by matching the T-shaped block (142) and the T-shaped slot (143), and ensure that the three arc-shaped contact plates (91) are a complete roundness and stably contact connected with the rotating shaft (3); S3. The hub (2) gradually separates from the rotating shaft (3) under the action of external force, and the relative stress of the hub (2) on the rotating shaft (3) is fed back to the force change between the arc-shaped contact plate (91) and the rotating shaft (3). The packaging shell (131) is embedded in the arc-shaped contact plate (91), and a ceramic diaphragm (132) and a thick film resistor (133) are installed in the packaging shell (131). The corresponding force between the arc-shaped contact plate (91) and the rotating shaft (3) squeezes the ceramic diaphragm (132), causing the ceramic diaphragm (132) to produce a slight deformation. The thick film resistor (133) is printed on the back of the ceramic diaphragm (132), which is connected to form a Wheatstone bridge. The bridge generates a high linearity and a pressure proportional to the bridge. The voltage signal is proportional to the excitation voltage, that is, the greater the pressure between the arc-shaped contact plate (91) and the rotating shaft (3), the smaller the resistance, so that the amount of current flowing through the electromagnetic block (104) is large and the magnetism is stronger. The electromagnetic block (104) and the permanent magnet block (105) have the same magnetism, thereby making the reaction plate (103) cooperate with the wind rope (8) to pull outward, providing further directional compensation force to the hub (2). According to the actual position of the hub (2), the contact force of the hub (2) relative to the rotating shaft (3) in various directions is adaptively regulated, so that the central axis of the hub (2) and the rotating shaft (3) is consistent with the central axis of the force direction, thereby making the hub (2) and the rotating shaft (3) disengage faster; S4. When the wheel hub (2) moves outward and separates from the rotating shaft (3), one end of the folding compressed water bag (113) is driven to move synchronously, thereby causing the folding compressed water bag (113) to unfold, and water is injected into the folding compressed water bag (113) from the outside through the water supply pipe (114). When the wheel hub (2) is completely separated from the rotating shaft (3), the wheel hub (2) continues to move forward due to inertia. At this time, the limiting telescopic rod (112) has been extended to the longest position, and the wheel hub (2) drives the fixed The plate (121) continues to move forward, cooperates with the guide slide bar (123) to achieve linear movement, and simultaneously stretches the pull-back compensation spring (122), and uses the rebound force generated by the deformation of the pull-back compensation spring (122) to pull the hub (2) back. When the hub (2) moves back, it first cooperates with the damping rubber block (125) to buffer and reduce shock on the hub (2), and at this time, the folded compression water bag (113) is filled with water, which can also provide effective anti-rebound buffering and reduce the shaking of the fan impeller.

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