A driving device for turning over the rotor of a doubly-fed generator

Abstract

The present invention discloses a driving device for turning over the rotor of a doubly fed generator, and relates to the technical field of wind turbine manufacturing. The present invention comprises a rotor turning bracket, a rotor bracket, and a stable lifting drive mechanism. The present invention, through the provision of the stable lifting drive mechanism, enables, when the rotor body needs to be turned over, the upper fixing ring and the lower fixing ring cooperate to clamp the non-driven end of the rotor body, and then the motor B is turned on to drive the rotating shaft to rotate. The rotation of the rotating shaft will drive the winding roller to rotate synchronously to reel in the steel rope, so that the non-driven end of the rotor body rises. The hydraulic chamber, gears, rack and other components cooperate to drive the winding roller to rotate and move at the same time, so that the steel rope is more evenly wound on the winding roller, improving the stability of the overall winding, and preventing the steel rope from being entangled and shaking. Then, the motor A is turned on to drive the threaded rod to rotate, so that the movable seat can move, thereby cooperating with the turning operation.

Description

Technical Field

[0001] The present invention relates to the technical field of wind generator manufacturing, in particular to a driving device for turning over a doubly-fed generator rotor. Background Art

[0002] The doubly-fed wind turbine generator is a wound induction generator. It is the core component of a variable speed constant frequency wind turbine generator set and one of the key components for the localization of wind turbine generator sets. The generator mainly consists of two parts: the motor body and the cooling system. The motor body consists of a stator, a rotor and a bearing system. The cooling system is divided into three structures: water cooling, air-to-air cooling and air-to-water cooling.

[0003] As the power generation of doubly-fed asynchronous generators increases, the volume, weight and length of the rotors are also increasing. At present, the rotors are lifted using large and small hooks of a crane, and the lifting ropes are used to lift them to the neutral position on the rotor drive end and non-drive end shafts respectively. This lifting method is not stable enough and has great safety hazards. During the rotor turning process, it is easy to shake under the action of gravity and inertia, which may cause accidents. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the present invention provides a driving device for turning over the rotor of a doubly-fed generator, which solves the problems raised in the above-mentioned background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a driving device for turning over the rotor of a doubly fed generator, comprising a rotor turning bracket, a rotor bracket and a stable lifting drive mechanism, the top of the rotor turning bracket is fixedly connected to a support, the top of the rotor bracket is provided with a rotor body, and the surface of the rotor body is provided with a connecting pin; the stable lifting drive mechanism comprises a mounting frame, a movable seat and a winding roller, the top of the mounting frame is provided with a long slot, the movable seat is slidably connected to the long slot, the inner bottom of the movable seat is fixedly connected to a threaded sleeve, the top of the mounting frame is provided with a motor A, the output shaft of the motor A is fixedly connected to a threaded rod, the movable seat A motor B is provided on the front side, the inner side of the movable seat is rotatably connected to the rotating shaft, the surface of the winding roller is wrapped with a steel rope, the side of the movable seat passes through and is fixedly connected to a hydraulic warehouse, the internal piston at one end of the hydraulic warehouse is slidably connected to the piston rod A, the top of the piston rod A is fixedly connected to a gear rod, the internal piston at the other end of the hydraulic warehouse is slidably connected to the piston rod B, the end of the piston rod B away from the hydraulic warehouse is fixedly connected to a round block, an open ring groove is provided on the side of the movable seat, the side of the rotating shaft is fixedly connected to a rotating rod, the end of the rotating rod away from the rotating shaft is fixedly connected to a gear, a lubrication mechanism is provided on the top of the piston rod B, and a cleaning mechanism is provided on the inner side of the mounting frame.

[0006] According to the above technical solution, the rotor body is rotatably connected to the support through a connecting pin, and an anti-slip bolt is provided on the surface of the connecting pin. A slide groove is provided on the inner side wall of the winding roller, and a slider is fixedly connected to the surface of the rotating shaft. The slider is slidably connected to the inside of the slide groove. When the non-driven end of the rotor body is lifted, the driven end of the rotor body will be restricted by the connecting pin to rotate on the support. The anti-slip bolt can prevent the connecting pin from falling off from the support. When the rotating shaft rotates, the winding roller will be driven to rotate synchronously through the cooperation of the slider and the slide groove, and the winding roller can slide on the surface of the rotating shaft.

[0007] According to the above technical solution, the end of the steel rope away from the winding roller is rotatably connected to a hook A, the bottom of the hook A is connected to a hanging seat, the bottom of the hanging seat is fixedly connected to a hook B, the bottom of the hook B is connected to an upper fixing ring, and the bottom bolt of the upper fixing ring is connected to a lower fixing ring. The non-driven end of the rotor body is clamped by cooperating with the upper fixing ring and the non-driven end of the rotor body is driven to rise by the hook A and the hook B when the steel rope rises.

[0008] According to the above technical solution, the threaded sleeve is threadedly connected to the threaded rod, and the output shaft of the motor B is fixedly connected to the rotating shaft. When the threaded rod rotates, it will drive the movable seat to move along the long groove through the cooperation between the thread and the threaded sleeve. Turning on the motor B will drive the rotating shaft to rotate.

[0009] According to the above technical solution, the teeth on the rack are engaged with the teeth on the gear, the round block is slidably connected to the inside of the open ring groove, and an oil outlet assembly is provided on the surface of the round block. When the gear rotates, it drives the rack to move up or down, and when the piston rod B moves to the left or right, it drives the winding roller to move through the cooperation between the round block and the open ring groove.

[0010] According to the above technical solution, the lubrication mechanism includes a lubricating oil box, the back side of the lubricating oil box is penetrated by and fixedly connected with a refueling pipe, the bottom of the lubricating oil box is penetrated by and fixedly connected with an oil delivery pipe, and the oil outlet assembly includes an oil storage tank, the oil storage tank is opened inside the round block, the inside of the oil storage tank is fixedly connected with a support rod, the surface of the support rod is rotatably connected to a roller, and the surface of the roller is provided with an oil pit.

[0011] According to the above technical solution, the end of the oil pipe away from the lubricating oil box passes through and is fixedly connected to the oil storage tank. The surface of the roller is in contact with the inner wall of the open ring groove in the initial state. The lubricating oil in the lubricating oil box can enter the oil storage tank through the oil pipe. When the friction between the roller and the open ring groove is large, the roller will rotate.

[0012] According to the above technical solution, the cleaning mechanism includes an eccentric extrusion ring and an air pressure chamber. The eccentric extrusion ring is fixedly connected to the surface of the rotating shaft, and the air pressure chamber is fixedly connected to the inner wall of the movable seat. An airbag is provided at one end of the air pressure chamber, and the internal piston at the other end of the air pressure chamber is slidingly connected to a piston rod C. The end of the piston rod C away from the air pressure chamber is fixedly connected to a cleaning brush.

[0013] According to the above technical solution, the airbag is in an expanded state in the initial state, and the end of the airbag away from the air pressure chamber is close to the rotating shaft. When the rotating shaft rotates, it will drive the eccentric extrusion ring to repeatedly squeeze the airbag.

[0014] According to the above technical solution, the end of the cleaning brush away from the piston rod C is close to the threaded rod, and the bristles of the cleaning brush are in contact with the threaded rod. When the cleaning brush moves, its bristles will clean the surface of the threaded rod.

[0015] The present invention provides a driving device for turning over the rotor of a doubly-fed generator. It has the following beneficial effects:

[0016] (1) The present invention provides a stable lifting drive mechanism so that when the rotor body needs to be turned over, the upper fixing ring and the lower fixing ring can be used to clamp the non-driven end of the rotor body, and then the motor B is turned on to drive the rotating shaft to rotate. The rotation of the rotating shaft will drive the winding roller to rotate synchronously to reel the steel rope, so that the non-driven end of the rotor body rises, and the hydraulic chamber, gears, gear rods and other components will drive the winding roller to rotate and move at the same time, so that the steel rope is more evenly wound on the winding roller, improving the stability of the overall winding and preventing the steel ropes from being entangled and shaking. Then, the motor A is turned on to drive the threaded rod to rotate, so that the movable seat can move, thereby cooperating with the turning operation.

[0017] (2) The present invention sets a lubricating mechanism so that when the piston rod B moves and the winding roller is driven to move by the cooperation between the round block and the open ring groove, when the friction between the open ring groove and the round block is large, the lubricating oil box, the oil pipe and the structure inside the oil outlet assembly will cooperate to allow the lubricating oil to enter the open ring groove for lubrication, thereby reducing the friction between the open ring groove and the round block, slowing down the aging of the entire mechanism, and not easily causing waste of lubricating oil.

[0018] (3) The present invention sets up a cleaning mechanism so that the motor B is turned on to drive the rotating shaft to rotate, and the rotation of the rotating shaft drives the winding roller to rotate synchronously to reel the steel rope, and the motor A is turned on to drive the threaded rod to rotate so that the movable seat moves. In the process, the cleaning brush is driven to move repeatedly to clean the surface of the rotating threaded rod through the cooperation of the eccentric extrusion ring, air bag, air pressure chamber and other components to prevent the surface of the threaded rod from being adhered to foreign matter and affecting the stability of the operation of the entire device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0020] Figure 2 A three-dimensional schematic diagram of a partial structure of the present invention;

[0021] Figure 3 A three-dimensional cross-sectional view of the structure of the rotor turning bracket of the present invention;

[0022] Figure 4 A three-dimensional schematic diagram of the overall structure of the stable lifting drive mechanism of the present invention;

[0023] Figure 5 A three-dimensional schematic diagram of a partial structure of a stable lifting drive mechanism of the present invention;

[0024] Figure 6 A three-dimensional cross-sectional view of a portion of the structure of the stable lifting drive mechanism of the present invention;

[0025] Figure 7 A three-dimensional cross-sectional view of the structure of the lubrication mechanism and the oil outlet assembly of the present invention;

[0026] Figure 8 It is a three-dimensional schematic diagram of the cleaning mechanism structure of the present invention.

[0027] In the figure: 1. Rotor turning bracket; 2. Support; 3. Rotor bracket; 4. Rotor body; 5. Connecting pin; 6. Anti-drop bolt; 7. Stable lifting drive mechanism; 71. Mounting frame; 72. Long slot; 73. Moving seat; 74. Threaded sleeve; 75. Motor A; 76. Threaded rod; 77. Rotating shaft; 78. Motor B; 79. Winding roller; 710. Steel rope; 711. Hook A; 712. Hanging seat; 713. Hook B; 714. Upper fixing ring; 715. Lower fixing ring; 716. Slide groove; 717. Slide Block; 718, hydraulic chamber; 719, piston rod A; 720, gear rod; 721, piston rod B; 722, round block; 723, open ring groove; 724, rotating rod; 725, gear; 8, lubrication mechanism; 81, lubricating oil box; 82, filling pipe; 83, oil pipe; 84, oil outlet assembly; 841, oil storage tank; 842, support rod; 843, roller; 844, with oil pit; 9, cleaning mechanism; 91, eccentric extrusion ring; 92, air pressure chamber; 93, air bag; 94, piston rod C; 95, cleaning brush. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] See also Figure 1-8One embodiment of the present invention is: a driving device for turning over the rotor of a doubly fed generator, comprising a rotor turning bracket 1, a rotor bracket 3 and a stable lifting drive mechanism 7, wherein the top of the rotor turning bracket 1 is fixedly connected to a support 2, the top of the rotor bracket 3 is provided with a rotor body 4, and the surface of the rotor body 4 is provided with a connecting pin 5; the stable lifting drive mechanism 7 comprises a mounting frame 71, a movable seat 73 and a winding roller 79, a long slot 72 is provided on the top of the mounting frame 71, the movable seat 73 is slidably connected to the long slot 72, a threaded sleeve 74 is fixedly connected to the inner bottom of the movable seat 73, a motor A75 is provided on the top of the mounting frame 71, the output shaft of the motor A75 is fixedly connected to a threaded rod 76, a motor B78 is provided on the front side of the movable seat 73, and the movable seat 73 is provided with a winding roller. The inner side is rotatably connected with a rotating shaft 77, a threaded sleeve 74 is threadedly connected to a threaded rod 76, and the output shaft of the motor B78 is fixedly connected to the rotating shaft 77. When the threaded rod 76 rotates, it drives the movable seat 73 to move along the long slot 72 through the cooperation of the thread between the threaded sleeve 74. Turning on the motor B78 will drive the rotating shaft 77 to rotate. A steel rope 710 is wrapped around the surface of the winding roller 79. The rotor body 4 is rotatably connected to the support 2 through the connecting pin 5. The surface of the connecting pin 5 is provided with an anti-slip bolt 6. A slide groove 716 is provided on the inner side wall of the winding roller 79. A slider 717 is fixedly connected to the surface of the rotating shaft 77. The slider 717 is slidably connected to the inside of the slide groove 716. When the non-driving end of the rotor body 4 is lifted, the driving end of the rotor body 4 will be restricted to the support by the connecting pin 5. 2, the anti-slip bolt 6 can prevent the connecting pin 5 from falling off the support 2. When the rotating shaft 77 rotates, the sliding block 717 and the sliding groove 716 will drive the winding roller 79 to rotate synchronously, and the winding roller 79 can slide on the surface of the rotating shaft 77. The end of the steel rope 710 away from the winding roller 79 is rotatably connected to the hook A711, and the bottom of the hook A711 is hung with a hanging seat 712. The bottom of the hanging seat 712 is fixedly connected with a hook B713. The bottom of the hook B713 is hung with an upper fixing ring 714. The bottom bolt of the upper fixing ring 714 is connected to the lower fixing ring 715. The non-driven end of the rotor body 4 is clamped by the upper fixing ring 714 and the lower fixing ring 715. When the steel rope 710 rises, it will cooperate with the hook B71 through the hook A711 3 drives the non-driven end of the rotor body 4 to rise, and the side of the movable seat 73 is penetrated and fixedly connected with a hydraulic chamber 718. The internal piston at one end of the hydraulic chamber 718 is slidably connected to a piston rod A719, and the top of the piston rod A719 is fixedly connected to a gear rod 720. The internal piston at the other end of the hydraulic chamber 718 is slidably connected to a piston rod B721. The end of the piston rod B721 away from the hydraulic chamber 718 is fixedly connected to a round block 722. An open ring groove 723 is provided on the side of the movable seat 73, and a rotating rod 724 is fixedly connected to the side of the rotating shaft 77. The end of the rotating rod 724 away from the rotating shaft 77 is fixedly connected to a gear 725. The teeth on the gear rod 720 mesh with the teeth on the gear 725, and the round block 722 is slidably connected to the inside of the open ring groove 723.The surface of the round block 722 is equipped with an oil outlet assembly 84. When the gear 725 rotates, it drives the gear rod 720 to move upward or downward. When the piston rod B721 moves left or right, the cooperation between the round block 722 and the open ring groove 723 drives the winding roller 79 to move. The top of the piston rod B721 is equipped with a lubrication mechanism 8, and the inner side of the mounting frame 71 is equipped with a cleaning mechanism 9.

[0030] When in use, the rotor turning bracket 1 is fixed with reinforced pre-embedded anchor bolts and nuts, and then reinforced with high-strength non-shrinkage grouting material, and the driven end of the rotor body 4 is rotatably connected to the top support 2 of the rotor turning bracket 1 through the connecting pin 5, and the anti-loosening bolt 6 is inserted into the radial through-hole at the inlet end of the connecting pin 5 to prevent the connecting pin 5 from falling off under the state of unbalanced force. The rotor body 4 is supported by two sets of rotor brackets 3, and then the non-driven end of the rotor body 4 is clamped by the upper fixing ring 714 and the lower fixing ring 715 with bolts, and the upper fixing ring 714 is hoisted by two sets of hooks B713. Then, the motor B78 is turned on to drive the rotating shaft 77 to rotate. The rotation of the rotating shaft 77 will drive the winding roller 79 to rotate synchronously through the cooperation of the slider 717 and the slide groove 716, and the rotation of the rotating shaft 77 will also drive the rotating rod 724 to rotate. The rotation of the rotating rod 724 drives the gear 725 to rotate, and the rotation of the gear 725 drives the gear rod 720 and the piston rod A719 to move upward or downward. When the piston rod A719 moves upward or downward, the hydraulic pressure in the hydraulic chamber 718 will drive the piston rod B721 to move toward the rear end or the front end. The movement of the piston rod B721 toward the rear end or the front end will drive the rotating winding roller 79 to move through the cooperation of the round block 722 and the open ring groove 723, so that the winding roller 79 will also move linearly when it rotates to reel or unreel, so that the steel rope 710 can be reeled on the reel roller 79 more evenly, thereby improving the stability of the overall reeling and preventing the steel rope 710 from being entangled and shaking. In the process of lifting the non-driven end of the rotor body 4, the motor A75 is turned on to drive the threaded rod 76 to rotate. When the threaded rod 76 rotates, it will drive the moving seat 73 to move along the long slot 72 through the cooperation between the thread and the threaded sleeve 74. During this process, the rotor turning bracket 1 cooperates with the support 2, the connecting pin 5 and other components to make the driven end of the rotor body 4 rotate stably, and the overall turning work is more stable, reducing the possibility of accidents.

[0031] See also Figure 1-8On the basis of the above embodiment, in another embodiment of the present invention, the lubricating mechanism 8 includes a lubricating oil box 81, the back side of the lubricating oil box 81 is penetrated and fixedly connected with a filling pipe 82, the bottom of the lubricating oil box 81 is penetrated and fixedly connected with an oil delivery pipe 83, and the oil outlet component 84 includes an oil storage tank 841, the oil storage tank 841 is opened inside the round block 722, the interior of the oil storage tank 841 is fixedly connected with a support rod 842, the surface of the support rod 842 is rotatably connected to the roller 843, the surface of the roller 843 is provided with an oil pit 844, the end of the oil delivery pipe 83 away from the lubricating oil box 81 is penetrated and fixedly connected with the oil storage tank 841, the surface of the roller 843 is in contact with the inner wall of the open ring groove 723 in the initial state, the lubricating oil in the lubricating oil box 81 can enter the oil storage tank 841 through the oil delivery pipe 83, when the roller 843 and the open ring groove 723 rub against each other When the force is large, the roller 843 will rotate. The cleaning mechanism 9 includes an eccentric extrusion ring 91 and an air pressure chamber 92. The eccentric extrusion ring 91 is fixedly connected to the surface of the rotating shaft 77, and the air pressure chamber 92 is fixedly connected to the inner wall of the movable seat 73. An airbag 93 is provided at one end of the air pressure chamber 92, and a piston rod C94 is slidably connected to the internal piston of the other end of the air pressure chamber 92. A cleaning brush 95 is fixedly connected to the end of the piston rod C94 away from the air pressure chamber 92. The airbag 93 is in an expanded state in the initial state, and the end of the airbag 93 away from the air pressure chamber 92 is close to the rotating shaft 77. When the rotating shaft 77 rotates, the eccentric extrusion ring 91 will be driven to repeatedly squeeze the airbag 93, and the end of the cleaning brush 95 away from the piston rod C94 is close to the threaded rod 76, and the bristles of the cleaning brush 95 are in contact with the threaded rod 76. When the cleaning brush 95 moves, its bristles will clean the surface of the threaded rod 76.

[0032] When the piston rod B721 moves toward the rear end or the front end and drives the rotating winding roller 79 to move through the cooperation of the round block 722 and the open ring groove 723, friction is generated between the round block 722, the roller 843 and the inner wall of the open ring groove 723. When the friction between the roller 843 and the open ring groove 723 is large, the roller 843 will rotate. The rotation of the roller 843 will cooperate with the oil pit 844 on the surface to take away the lubricating oil in the oil storage tank 841 and smear it on the inner wall of the open ring groove 723, thereby lubricating the inner wall of the open ring groove 723. The lubricating oil in the lubricating oil box 81 can enter the oil storage tank 841 through the oil pipe 83 to be supplemented. When the friction between the roller 843 and the open ring groove 723 becomes smaller and can no longer drive the roller 843 to rotate, the lubricating oil no longer enters the open ring groove 723, thereby reducing the opening The friction between the ring groove 723 and the round block 722 slows down the aging of the entire mechanism and is not prone to waste of lubricating oil. During the turning process, when the rotating shaft 77 rotates, it will drive the eccentric extrusion ring 91 to repeatedly squeeze the airbag 93. The air pressure inside the airbag 93 will enter the air pressure chamber 92 and push the piston rod C94 to move out of the air pressure chamber 92. The movement of the piston rod C94 out of the air pressure chamber 92 will drive the cleaning brush 95 to move. When the eccentric extrusion ring 91 leaves the airbag 93, the airbag 93 rebounds, and the air pressure returns from the air pressure chamber 92 to the airbag 93. At this time, the piston rod C94 drives the cleaning brush 95 to move in the opposite direction to restore. The cleaning brush 95 moves repeatedly in the process of following the movement of the moving seat 73 to clean the surface of the rotating threaded rod 76, so as to prevent the surface of the threaded rod 76 from being contaminated by debris and affecting the stability of the operation of the entire device.

[0033] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A driving device for turning over a doubly-fed generator rotor, comprising a rotor turning bracket (1), a rotor bracket (3) and a stable lifting drive mechanism (7), characterized in that: The top of the rotor turning bracket (1) is fixedly connected to a support (2), the top of the rotor bracket (3) is provided with a rotor body (4), and the surface of the rotor body (4) is provided with a connecting pin (5); The stable lifting drive mechanism (7) includes a mounting frame (71), a movable seat (73) and a winding roller (79), wherein a long slot (72) is provided on the top of the mounting frame (71), the movable seat (73) is slidably connected to the long slot (72), the inner bottom of the movable seat (73) is fixedly connected with a threaded sleeve (74), the top of the mounting frame (71) is provided with a motor A (75), the output shaft of the motor A (75) is fixedly connected with a threaded rod (76), the front side of the movable seat (73) is provided with a motor B (78), the inner side of the movable seat (73) is rotatably connected with a rotating shaft (77), the surface of the winding roller (79) is wound with a steel rope (710), the side of the movable seat (73) is penetrated and fixedly connected with a hydraulic chamber (718), and one side of the hydraulic chamber (718) is provided. The inner piston at one end is slidably connected to a piston rod A (719), the top of the piston rod A (719) is fixedly connected to a gear rod (720), the inner piston at the other end of the hydraulic chamber (718) is slidably connected to a piston rod B (721), the end of the piston rod B (721) away from the hydraulic chamber (718) is fixedly connected to a round block (722), the surface of the round block (722) is provided with an oil outlet assembly (84), the side of the movable seat (73) is provided with an open ring groove (723), the side of the rotating shaft (77) is fixedly connected to a rotating rod (724), the end of the rotating rod (724) away from the rotating shaft (77) is fixedly connected to a gear (725), the top of the piston rod B (721) is provided with a lubrication mechanism (8), and the inner side of the mounting frame (71) is provided with a cleaning mechanism (9); The lubricating mechanism (8) includes a lubricating oil box (81), a refueling pipe (82) is passed through and fixedly connected to the back side of the lubricating oil box (81), an oil delivery pipe (83) is passed through and fixedly connected to the bottom of the lubricating oil box (81), and the oil outlet assembly (84) includes an oil storage bin (841), the oil storage bin (841) is opened inside the round block (722), a support rod (842) is fixedly connected inside the oil storage bin (841), a roller (843) is rotatably connected to the surface of the support rod (842), an oil pit (844) is opened on the surface of the roller (843), and the surface of the roller (843) is in contact with the inner wall of the open ring groove (723) in an initial state; The cleaning mechanism (9) comprises an eccentric extrusion ring (91) and an air pressure chamber (92), wherein the eccentric extrusion ring (91) is fixedly connected to the surface of the rotating shaft (77), and the air pressure chamber (92) is fixedly connected to the inner wall of the movable seat (73). An air bag (93) is provided at one end of the air pressure chamber (92), and a piston rod C (94) is slidably connected to the internal piston of the other end of the air pressure chamber (92). A cleaning brush (95) is fixedly connected to the end of the piston rod C (94) away from the air pressure chamber (92), and the bristles of the cleaning brush (95) are in contact with the threaded rod (76).

2. The driving device for turning over the doubly-fed generator rotor according to claim 1, characterized in that: The rotor body (4) is rotatably connected to the support (2) via a connecting pin (5); an anti-drop bolt (6) is provided on the surface of the connecting pin (5); a slide groove (716) is provided on the inner side wall of the winding roller (79); a slider (717) is fixedly connected to the surface of the rotating shaft (77); and the slider (717) is slidably connected to the inside of the slide groove (716).

3. The driving device for turning over the doubly-fed generator rotor according to claim 2, characterized in that: One end of the steel rope (710) away from the winding roller (79) is rotatably connected to a hook A (711), the bottom of the hook A (711) is connected to a hanging seat (712), the bottom of the hanging seat (712) is fixedly connected to a hook B (713), the bottom of the hook B (713) is connected to an upper fixing ring (714), and the bottom of the upper fixing ring (714) is bolted to a lower fixing ring (715).

4. The driving device for turning over the doubly-fed generator rotor according to claim 3, characterized in that: The threaded sleeve (74) is threadedly connected to the threaded rod (76), and the output shaft of the motor B (78) is fixedly connected to the rotating shaft (77).

5. The driving device for turning over the doubly-fed generator rotor according to claim 4, characterized in that: The teeth on the gear rod (720) mesh with the teeth on the gear (725), and the round block (722) is slidably connected inside the open ring groove (723).

6. The driving device for turning over the doubly-fed generator rotor according to claim 5, characterized in that: One end of the oil delivery pipe (83) away from the lubricating oil box (81) passes through and is fixedly connected to the oil storage tank (841).

7. The driving device for turning over the doubly-fed generator rotor according to claim 6, characterized in that: The airbag (93) is in an expanded state in an initial state, and one end of the airbag (93) away from the air pressure chamber (92) is close to the rotating shaft (77).

8. The driving device for turning over the doubly-fed generator rotor according to claim 7, characterized in that: One end of the cleaning brush (95) away from the piston rod C (94) is close to the threaded rod (76).

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