Remanufacturing device for wind driven generator and using method

Abstract

The invention relates to the technical field of wind power generation, in particular to a remanufacturing device for a wind driven generator and a using method.The device comprises a mounting base arranged in a fan box, an adjusting mechanism is arranged at the top end of the mounting base, and a fixing piece used for being connected to one side of a brake disc is arranged at the bottom end of the mounting base; the grinding device further comprises a moving plate, the adjusting mechanism is slidably connected with the moving plate, a rotating mechanism is arranged on one side face of the moving plate, and a grinding disc connected with the rotating mechanism is arranged on the other opposite side face of the moving plate. The device further comprises a pretreatment mechanism used for treating oil stains on the yaw brake disc, and the pretreatment mechanism is connected with the moving plate. The using method is simple and easy to implement, and the oil stain cleaning and polishing effects are good. Remanufacturing and repairing of the brake disc are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power generation, and in particular to a remanufacturing device for a wind power generator and a use method thereof. Background Art

[0002] The wind power source consists of a wind turbine generator set, a tower supporting the generator set, a battery charge controller, an inverter, a load unloader, a grid connection controller, a battery pack, etc. The wind turbine generator set includes a wind rotor, a generator, a tower, a nacelle (also called a wind turbine box, which includes a yaw brake structure inside), etc.

[0003] At present, the yaw brake structure of a wind turbine generally includes a yaw bearing, a yaw brake disc (brake disc for short) and a hydraulic brake. The yaw brake disc is connected to the yaw bearing, and the hydraulic brake achieves braking through the friction between the yaw brake disc and the hydraulic brake. However, the yaw brake disc has the following problems in actual use: First, the grease in the yaw bearing and the grease on the tooth surface of the yaw bearing easily overflow onto the yaw brake disc. As the grease accumulates, the grease on the yaw brake disc becomes thicker and thicker, and the adhesion of dust will affect the rotation effect of the hydraulic brake. Second, the yaw brake disc is mostly made of metal. Excessive wear on the surface of the yaw brake disc makes it impossible to repair. Damage to the yaw brake disc not only affects the normal use of the wind turbine, but also requires replacement with a new yaw brake disc. Replacing the new yaw brake disc is not only expensive and cumbersome, but also requires a running-in period between the new yaw brake disc and the wind turbine, which invisibly greatly reduces the service life and operational stability of the wind turbine.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] The purpose of the present invention is to overcome the above-mentioned shortcomings of the prior art and to provide a remanufacturing device for a wind turbine and a method of using the same.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: On the one hand, the present invention provides a remanufacturing device for a wind turbine, comprising a mounting seat arranged inside a wind turbine box, the top end of the mounting seat is provided with an adjustment mechanism, and the bottom end is provided with a fixing member for connecting to one side of a brake disc; further comprising a movable plate, the adjustment mechanism is slidably connected to the movable plate, a rotating mechanism is provided on one side of the movable plate, and a grinding disc connected to the rotating mechanism is provided on the other side opposite to the mounting seat; The utility model also comprises a pre-treatment mechanism for treating oil stains on the brake disc, and the pre-treatment mechanism is connected with the movable plate.

[0007] Furthermore, the adjustment mechanism includes a mounting frame, a first motor and a threaded shaft, the mounting frame is fixed at the top of the mounting seat, the first motor is fixedly connected to the inside of the mounting frame, and the main shaft of the first motor is fixedly connected to one end of the threaded shaft, the other end of the threaded shaft is rotatably connected to the mounting frame, and the threaded shaft is provided with a threaded sleeve that can move along its axial direction, and the outer wall of the threaded sleeve is provided with a connecting block fixedly connected to the movable plate.

[0008] Furthermore, the pretreatment mechanism includes a side frame, a preheating plate and a cleaning assembly, the side frame is connected to the movable plate, and a first opening and a second opening are provided on the side frame, the preheating plate is arranged at the first opening, the cleaning assembly is arranged inside the side frame and can be extended or retracted from the second opening, and the bottom of the side frame is detachably connected to an oil collecting frame.

[0009] Further, the cleaning assembly includes a hydraulic transmission component, a moving frame and a third motor, the hydraulic transmission component is fixedly connected to the inside of the side frame, the free end of the hydraulic transmission component is connected to the moving frame, a pair of rotating shafts are rotatably connected to the moving frame along the height direction, the third motor is connected to the top of the moving frame, and its free end is fixedly connected to any of the rotating shafts, a pulley is fixedly connected to the outer periphery of each of the rotating shafts, and wiping belts are sleeved on the two pulleys; The utility model also comprises a supporting plate, which is sleeved on a pair of rotating shafts and is located below the wiping belt.

[0010] Furthermore, a guide roller passing through the support plate is arranged on the movable frame and between the two rotating shafts, and the outer wall of the guide roller contacts the inner wall of the wiping belt; It also includes a rejection plate, which is fixedly connected to the movable frame, and the rejection plate is tilted and located on the outside of the wiping belt and contacts the outer wall of the wiping belt.

[0011] Furthermore, the device also includes a linear drive mechanism, one end of which is detachably connected to a collecting mechanism, and the other end is fixedly connected to the movable plate. The collecting mechanism is located below the grinding disc and is used to collect grinding debris.

[0012] Furthermore, the collecting mechanism comprises a debris collecting frame detachably connected to the linear driving mechanism, and a chip blocking assembly capable of moving up and down is arranged inside the debris collecting frame and on either side along the length direction thereof.

[0013] Further, the chip blocking assembly includes a second motor fixed in the chip collecting frame, and the main shaft of the second motor is fixedly connected with a driving gear; It also includes a blocking plate and a plurality of limiting columns, wherein the blocking plate is provided with a through slot, and the plurality of limiting columns pass through the through slot and are fixedly connected to the inner wall of the debris collection frame, and the outer side of the blocking plate is fixedly connected to a rack meshing with the driving gear.

[0014] Furthermore, the device also includes a protective cover located on one side of the grinding disc and connected to the movable plate, and the protective cover is sleeved on the transmission end of the rotating mechanism or the rear end of the grinding disc or the connection between the rotating mechanism and the grinding disc.

[0015] On the other hand, the present invention provides a method for using a remanufacturing device for a wind turbine generator, based on the remanufacturing device for a wind turbine generator as described above, comprising the following steps: Step 1, installing the device on one side of the brake disc. When the brake disc needs to be polished, first adjust the pretreatment mechanism to a suitable position away from the brake disc through the adjustment mechanism, then turn on the preheating plate of the pretreatment mechanism to heat the oil stains on the surface of the brake disc, and finally wipe the heated oil stains through the cleaning component of the pretreatment mechanism; Step 2: After the oil stains on the brake disc are cleaned, the grinding disc starts to grind the brake disc by turning on the rotating mechanism, and at the same time, the position of the collecting mechanism is adjusted by the linear drive mechanism of the device so that the debris can be collected.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1) The present invention proposes a remanufacturing device for a wind turbine generator, which is installed on a bracket on one side of the brake disc. The movable plate is driven to move by starting the adjusting mechanism, so that the grinding disc contacts the brake disc, and then the brake disc is polished by starting the rotating mechanism to achieve remanufacturing and repair of the brake disc, thereby solving the problem that the brake disc surface cannot be repaired after excessive wear.

[0017] 2) The present invention proposes a remanufacturing device for a wind turbine, which is also provided with a pretreatment mechanism. The preheating plate of the pretreatment mechanism can heat the oil stains on the surface of the brake disc to ensure its fluidity, and facilitate the use of a wiping belt to wipe the surface of the brake disc after the hydraulic transmission part drives the movable frame to slide out, thereby ensuring that subsequent grinding operations are easier; in addition, the guide roller of the pretreatment mechanism contacts with the wiping belt and supports the wiping belt, and the oil stains wiped on the surface of the wiping belt are removed by the cooperation of the removal plate on one side of the wiping belt and the guide roller, and then fall into the oil collecting frame for collection, thereby ensuring that the wiping belt can be used continuously, and solving the problem of the rotation effect of the hydraulic brake being affected by excessive grease and dust on the brake disc.

[0018] 3) The present invention proposes a remanufacturing device for a wind turbine generator, which is also provided with a linear drive mechanism, which drives the collection mechanism to move so that the debris collection frame of the collection mechanism is located below the grinding disc, and then the second motor is started to drive the driving gear to rotate, and the driving gear drives the rack to move, so that the blocking plate extends from the debris collection frame to block the splashing of grinding debris, thereby realizing the centralized collection and treatment of the debris. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are incorporated in and constitute a part of this specification and, together with the description, serve to explain the principles of the present invention.

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0021] Figure 1 It is a structural schematic diagram of a remanufacturing device for a wind turbine generator according to the present invention; Figure 2 A schematic diagram of the structure of the regulating mechanism of the remanufacturing device for a wind turbine generator according to the present invention; Figure 3 A schematic diagram of the structure of a cleaning assembly of a remanufacturing device for a wind turbine generator according to the present invention; Figure 4 A partial top view of a cleaning assembly of a remanufacturing device for a wind turbine generator according to the present invention; Figure 5 A schematic diagram of the installation of a cleaning component support plate of a remanufacturing device for a wind turbine generator according to the present invention; Figure 6 It is a schematic diagram of the structure of the collection mechanism of the remanufacturing device for the wind turbine generator of the present invention; Figure 7 for Figure 6 Schematic diagram of the enlarged structure at point A in the middle.

[0022] Among them: 1 is a mounting seat; 2 is an adjustment mechanism; 21 is a mounting frame; 22 is a first motor; 23 is a threaded shaft; 24 is a threaded sleeve; 25 is a connecting block; 3 is a fixing part; 4 is a mobile plate; 5 is a rotating mechanism; 6 is a grinding disc; 7 is a pre-treatment mechanism; 71 is a side frame; 72 is a pre-heating plate; 73 is a cleaning assembly; 74 is an oil collecting frame; 731 is a hydraulic transmission member; 732 is a moving frame; 733 is a third motor; 734 is a rotating shaft; 735 is a pulley; 736 is a wiping belt; 737 is a guide roller; 738 is a rejecting plate; 739 is a supporting plate; 8 is a linear drive mechanism; 9 is a collecting mechanism; 91 is a debris collecting frame; 92 is a chip blocking assembly; 921 is a second motor; 922 is a driving gear; 923 is a blocking plate; 924 is a limiting column; 925 is a rack; 10 is a protective cover. DETAILED DESCRIPTION

[0023] Here, exemplary embodiments will be described in detail, and the embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Instead, they are only examples consistent with some aspects of the present invention described in detail in the appended claims.

[0024] On the one hand, see Figure 1 to Figure 7 The present embodiment provides a remanufacturing device for a wind turbine, comprising a mounting seat 1 arranged inside a wind turbine box, two sets of symmetrical adjustment mechanisms 2 being installed at the top of the mounting seat 1, and a fixing member 3 for connecting to one side of a brake disc being installed at the bottom; a moving plate 4 is also included, the adjustment mechanism 2 is slidably connected to the moving plate 4, a rotating mechanism 5 is arranged on one side of the moving plate 4, and a grinding disc 6 connected to the rotating mechanism 5 is arranged on the other side opposite to the mounting seat 1; The brake disc also includes a pre-treatment mechanism 7 for treating oil stains on the brake disc. The pre-treatment mechanism 7 is connected to the movable plate 4 and is located on the right side of the grinding disc 6 .

[0025] In this embodiment, there are four fixing members 3, which are respectively installed at four corners near the mounting base 1. The fixing member 3 is a rectangular block, the top of which is connected to the bottom of the mounting base 1 by bolts, and a groove structure is provided at the bottom, which is used to connect to the bracket on one side of the brake disc in the fan box. The structure of the fixing member 3 and the connection method thereof with the fan box are not limited, as long as they can be connected to the inside of the fan box.

[0026] In this embodiment, the rotating mechanism 5 includes a box body, in which a motor with forward and reverse functions is arranged, which is connected to the grinding disc 6 through the movable plate 4, and the grinding disc 6 is driven to rotate by the motor drive shaft. Of course, the box body may also contain other devices that can rotate the grinding disc 6, which is not limited here.

[0027] like Figure 2As shown, the adjusting mechanism 2 includes a mounting frame 21, a first motor 22 and a threaded shaft 23, the mounting frame 21 is fixed at the top of the mounting seat 1, the first motor 22 is fixedly connected to the inside of the mounting frame 21, and the main shaft of the first motor 22 is fixedly connected to one end of the threaded shaft 23, the other end of the threaded shaft 23 is rotatably connected to the mounting frame 21, and a threaded sleeve 24 capable of moving along its axial direction is sleeved on the threaded shaft 23, and a connecting block 25 fixedly connected to the movable plate 4 is provided on the outer wall of the threaded sleeve 24.

[0028] Specifically, the threaded shaft 23 is driven to rotate by the first motor 22, and the rotation of the threaded shaft 23 drives the outer threaded sleeve 24 to make a linear motion, thereby driving the connecting block 25 and the movable plate 4 connected thereto to move, thereby achieving the purpose of adjusting the position of the movable plate 4 so that the grinding disc 6 can contact the brake disc for grinding and remanufacturing work.

[0029] Furthermore, the pretreatment mechanism 7 includes a side frame 71, a preheating plate 72 and a cleaning assembly 73, wherein the side frame 71 is connected to the movable plate 4, and a first opening and a second opening are provided on the side frame 71, and the preheating plate 72 is fixedly connected to the first opening in a convex manner ( Figure 1 ), the cleaning assembly 73 is arranged inside the side frame 71 and can be extended or retracted from the second opening, and the bottom of the side frame 71 is detachably connected to an oil collecting frame 74.

[0030] In this embodiment, the bottom of the side frame 71 is provided with an opening connected to the oil collecting frame 74, so that the oil stains on the wiping belt 736 fall into the oil collecting frame 74. The preheating plate 72 is an electric heating plate, which is powered by the mains electricity.

[0031] like Figure 3 and Figure 4 As shown, the cleaning assembly 73 includes a hydraulic transmission member 731, a movable frame 732 and a third motor 733. The hydraulic transmission member 731 is fixedly connected to the inside of the side frame 71. The free end of the hydraulic transmission member 731 is connected to the movable frame 732. A pair of rotating shafts 734 are rotatably connected to the movable frame 732 along its height direction. The third motor 733 is connected to the top of the movable frame 732, and its free end is fixedly connected to the rotating shaft 734 on the left side. A pulley 735 is fixedly connected to the outer periphery of each rotating shaft 734, and two pulleys 735 are sleeved with wiping belts 736. It also includes a support plate 739, which is sleeved on the pair of rotating shafts 734 and located below the wiping belt 736 to fix the wiping belt 736 and prevent it from sliding down.

[0032] Specifically, the hydraulic transmission member 731 is a hydraulic rod, and may also be an electric telescopic rod, a cylinder or other linear driving mechanism.

[0033] like Figure 4 and Figure 5 As shown, a guide roller 737 passing through a support plate 739 is provided on the movable frame 732 and between the two rotating shafts 734, and the outer wall of the guide roller 737 contacts the inner wall of the wiping belt 736; It also includes a rejection plate 738, which is fixedly connected to the movable frame 732, and the rejection plate 738 is tilted on the outside of the wiping belt 736 (that is, it is tilted on the movable frame 732) and contacts the outer wall of the wiping belt 736, so as to clean the oil stains on the wiping belt 736.

[0034] In this embodiment, the oil stains on the surface of the brake disc can be heated by the preheating plate 72 to ensure its fluidity, so that the wiping belt 736 can more easily wipe the surface of the brake disc to ensure subsequent polishing work; When performing oil removal work, the wiping belt 736 is supported by the guide roller 737, and the removal plate 738 on one side of the wiping belt 736 cooperates with the guide roller 737 to remove the oil stains on the surface of the wiping belt 736 and make the oil stains fall into the oil collecting frame 74 for collection, thereby ensuring that the wiping belt 736 can be used continuously.

[0035] Furthermore, the device also includes a linear drive mechanism 8, one end of which is detachably connected to a collecting mechanism 9, and the other end is fixedly connected to the movable plate 4. The collecting mechanism 9 is located below the grinding disc 6 and is used to collect grinding debris.

[0036] like Figure 6 As shown, the collecting mechanism 9 includes a debris collecting frame 91 detachably connected to the linear driving mechanism 8 , and a chip blocking assembly 92 that can move up and down is arranged inside the debris collecting frame 91 and on the left side along the length direction thereof.

[0037] Specifically, the linear drive mechanism 8 can be a series of linear driving mechanisms such as hydraulic rods, electric telescopic rods, cylinders, etc., and its function is to push the debris collection frame 91 to be located below the grinding disc.

[0038] like Figure 7 As shown, the chip blocking assembly 92 includes a second motor 921 fixed in the chip collecting frame 91, and a driving gear 922 is fixedly connected to the end of the main shaft of the second motor 921; It also includes a blocking plate 923 and a pair of limiting columns 924 distributed up and down. The blocking plate 923 is provided with a through slot. The pair of limiting columns 924 pass through the through slot and are fixedly connected to the inner wall of the debris collection frame 91 to provide support force for the blocking plate 923. The outer side of the blocking plate 923 is fixedly connected with a rack 925 meshing with the driving gear 922.

[0039] In this embodiment, the rack 925 and the blocking plate 923 are both arc-shaped structures.

[0040] Specifically, during the grinding operation, the linear drive mechanism 8 drives the collection mechanism 9 to move, so that the debris collection frame 91 is located below the grinding disc 6, and then the second motor 921 is started to drive the driving gear 922 to rotate, and the driving gear 922 drives the rack 925 to move, so that the blocking plate 923 extends from the debris collection frame 91. The blocking plate 923 serves to block the splashing of grinding debris, thereby realizing the centralized collection and treatment of the debris.

[0041] Furthermore, the device also includes a protective cover 10 located on one side of the grinding disc 6 and connected to the movable plate 4, and the protective cover 10 is sleeved on the transmission end of the rotating mechanism 5 or the rear end of the grinding disc 6 or the connection between the rotating mechanism 5 and the grinding disc 6.

[0042] In this embodiment, Figure 1 As shown, the protective cover 10 is fixedly connected to the movable plate 4 by bolts, and is sleeved at the connection between the rotating mechanism 5 and the grinding disc 6. The present invention does not limit the specific structure of the protective cover 10, as long as it can play a protective role.

[0043] On the other hand, this embodiment provides a method for using a remanufacturing device for a wind turbine generator, based on the above-mentioned remanufacturing device for a wind turbine generator, comprising the following steps: Step 1, install the device on one side of the brake disc. When the brake disc needs to be polished, first adjust the pretreatment mechanism 7 to a suitable distance from the brake disc through the adjustment mechanism 2, then turn on the preheating plate 72 of the pretreatment mechanism 7 to heat the oil stains on the surface of the brake disc, and finally wipe the heated oil stains through the cleaning component 73 of the pretreatment mechanism 7; Step 2: After the oil stains on the brake disc are cleaned, the grinding disc 6 starts to grind the brake disc by turning on the rotating mechanism 5 to achieve remanufacturing and repair of the brake disc. At the same time, the position of the collecting mechanism 9 is adjusted through the linear drive mechanism 8 of the device so that the debris can be collected.

[0044] It should be noted that the device of the present invention does not affect the operation of the wind turbine generator set after being installed. The brake disc can be polished when the wind turbine generator set is working, or it can be polished after the wind turbine generator set stops working.

[0045] In addition, the fixed connection or connection mentioned in the present invention is a general term, and specifically may include welding, integral molding, bonding and other fixing methods.

[0046] The principles and implementation methods of the present invention are described in this article using specific examples. The description of the above embodiments is only used to help understand the present invention and its core ideas. The above is only a preferred implementation method of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, several improvements, modifications or changes can be made, and the above technical features can also be combined in an appropriate manner.

[0047] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention.

Claims

1. A remanufacturing device for a wind turbine generator, characterized in that: It comprises a mounting seat (1) arranged inside a fan box, the top of the mounting seat (1) being provided with an adjustment mechanism (2), and the bottom of the mounting seat (1) being provided with a fixing member (3) for connecting to one side of a brake disc; it also comprises a movable plate (4), the adjustment mechanism (2) being slidably connected to the movable plate (4), a rotating mechanism (5) being provided on one side of the movable plate (4), and a grinding disc (6) connected to the rotating mechanism (5) being provided on the other side opposite thereto; It also includes a pre-treatment mechanism (7) for treating oil stains on the brake disc, wherein the pre-treatment mechanism (7) is connected to the movable plate (4).

2. The remanufacturing device for a wind turbine generator according to claim 1, characterized in that: The adjusting mechanism (2) comprises a mounting frame (21), a first motor (22) and a threaded shaft (23); the mounting frame (21) is fixed to the top end of the mounting seat (1); the first motor (22) is fixedly connected to the inside of the mounting frame (21); the main shaft of the first motor (22) is fixedly connected to one end of the threaded shaft (23); the other end of the threaded shaft (23) is rotatably connected to the mounting frame (21); a threaded sleeve (24) capable of moving in its axial direction is sleeved on the threaded shaft (23); and a connecting block (25) fixedly connected to the movable plate (4) is provided on the outer wall of the threaded sleeve (24).

3. The remanufacturing device for a wind turbine generator according to claim 1, characterized in that: The pretreatment mechanism (7) comprises a side frame (71), a preheating plate (72) and a cleaning assembly (73); the side frame (71) is connected to the movable plate (4), and a first opening and a second opening are formed on the side frame (71); the preheating plate (72) is arranged at the first opening; the cleaning assembly (73) is arranged inside the side frame (71) and can extend out of or retract from the second opening; and an oil collecting frame (74) is detachably connected to the bottom of the side frame (71).

4. The remanufacturing device for a wind turbine generator according to claim 3, characterized in that: The cleaning assembly (73) comprises a hydraulic transmission component (731), a movable frame (732) and a third motor (733); the hydraulic transmission component (731) is fixedly connected to the inside of the side frame (71); the free end of the hydraulic transmission component (731) is connected to the movable frame (732); a pair of rotating shafts (734) are rotatably connected to the movable frame (732) along its height direction; the third motor (733) is connected to the top of the movable frame (732) and the free end of the third motor (733) is fixedly connected to any of the rotating shafts (734); a pulley (735) is fixedly connected to the outer periphery of each rotating shaft (734); and wiping belts (736) are sleeved on the two pulleys (735); It also includes a support plate (739), which is sleeved on a pair of rotating shafts (734) and located below the wiping belt (736).

5. The remanufacturing device for a wind turbine generator according to claim 4, characterized in that: A guide roller (737) passing through a support plate (739) is provided on the movable frame (732) and between the two rotating shafts (734), wherein an outer wall of the guide roller (737) contacts an inner wall of the wiping belt (736); It also includes a rejection plate (738), which is fixedly connected to the movable frame (732), and the rejection plate (738) is tilted and located outside the wiping belt (736) and contacts the outer wall of the wiping belt (736).

6. The remanufacturing device for a wind turbine generator according to claim 1, characterized in that: The device further comprises a linear drive mechanism (8), one end of the linear drive mechanism (8) being detachably connected to a collecting mechanism (9), and the other end of the linear drive mechanism (8) being fixedly connected to the movable plate (4), the collecting mechanism (9) being located below the grinding disc (6) and being used for collecting grinding debris.

7. The remanufacturing device for a wind turbine generator according to claim 6, characterized in that: The collecting mechanism (9) comprises a debris collecting frame (91) detachably connected to the linear driving mechanism (8), and a chip blocking assembly (92) capable of moving up and down is provided inside the debris collecting frame (91) and on either side along its length direction.

8. The remanufacturing device for a wind turbine generator according to claim 7, characterized in that: The chip blocking assembly (92) comprises a second motor (921) fixed in the chip collecting frame (91), and a main shaft of the second motor (921) is fixedly connected to a driving gear (922); It also comprises a blocking plate (923) and a plurality of limiting columns (924); a through slot is provided on the blocking plate (923); the plurality of limiting columns (924) pass through the through slot and are fixedly connected to the inner wall of the debris collection frame (91); and a rack (925) meshing with the driving gear (922) is fixedly connected to the outer side of the blocking plate (923).

9. The remanufacturing device for a wind turbine generator according to claim 1, characterized in that: The device further comprises a protective cover (10) located on one side of the grinding disc (6) and connected to the movable plate (4); the protective cover (10) is sleeved on the transmission end of the rotating mechanism (5) or the rear end of the grinding disc (6) or the connection between the rotating mechanism (5) and the grinding disc (6).

10. A method for using a remanufacturing device for a wind turbine generator, characterized in that: The wind turbine remanufacturing device according to any one of claims 1 to 9 comprises the following steps: Step 1, installing the device on one side of the brake disc. When the brake disc needs to be polished, firstly adjust the pretreatment mechanism (7) to a suitable position away from the brake disc through the adjustment mechanism (2), then turn on the preheating plate (72) of the pretreatment mechanism (7) to heat the oil stains on the surface of the brake disc, and finally wipe the heated oil stains through the cleaning component (73) of the pretreatment mechanism (7); Step 2: After the oil stains on the brake disc are cleaned, the grinding disc (6) starts grinding the brake disc by turning on the rotating mechanism (5).

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