Wind power impeller locking device

Abstract

The utility model discloses a wind power impeller locking device, which belongs to the field of wind power and comprises a wind power impeller, a rotating shaft opening of the wind power impeller is sequentially provided with a speed changer and a power generation device, a brake device is arranged between the speed changer and the power generation device, and the rotating shaft opening of the wind power impeller is connected with an input shaft of the speed changer through a fixing disc. Compared with the prior art, the brake device has the advantages that after the brake device is decelerated, the pin of the return stroke fixing frame is pulled out, the T-shaped positioning rod device of the brake device is pushed by the positioning rod spring to enable the sliding ball at the thin column end of the T-shaped positioning rod device to slide in the sliding ball groove in the fixing disc, and the sliding ball groove and the positioning hole are concentric circles. When the T-shaped positioning rod device slides to the position above the positioning hole, the T-shaped positioning rod device slides into the positioning hole under the pushing of the positioning rod spring, so that the T-shaped positioning rod device is aligned and fixed, and the situation that the locking device is difficult to align with the positioning hole is avoided.

Description

Technical Field

[0001] The utility model relates to the field of wind power, in particular to a wind power impeller locking device. Background Art

[0002] Wind turbines are the most common power generation devices today. They use wind power to drive the blades of the generator to rotate, so that the rotor of the generator generates magnetic power and stores electrical energy through internal batteries. During long-term operation, dust will be present inside the impeller of the wind turbine due to environmental reasons. For the normal use of the impeller, it is often necessary to clean it every once in a while. Before cleaning the impeller, the position of the impeller must be fixed to avoid accidents caused by accidental start-up of the equipment by maintenance personnel during the maintenance process. For this reason, people need a wind turbine impeller locking device to fix the impeller.

[0003] The existing wind turbine impeller locking device reduces the speed of the impeller through a brake device between the transmission and the generator. When the fixed plate on one side of the transmission input shaft is aligned with the locking device above the bearing bracket, the impeller is stopped by using the brake device, and the screw of the locking device is fixedly connected to the positioning hole of the fixed plate.

[0004] Although the current wind turbine impeller locking device can fix the impeller, it is necessary to manually slow down the impeller when fixing it. When the speed is reduced, the screw of the locking device is observed by the naked eye to see whether it is aligned with the positioning hole of the fixed plate. Only after alignment can it be locked. This is a great test of the staff's skills and will be a huge challenge for new employees. Utility Model Content

[0005] The technical problem to be solved by the utility model is that the existing wind turbine impeller locking device cannot automatically lock the impeller after speed reduction.

[0006] In order to solve the above technical problems, the technical solution provided by the utility model is as follows: a wind turbine impeller locking device comprises a wind turbine impeller, a transmission and a generator are arranged in sequence at the rotating shaft opening of the wind turbine impeller, a brake device is arranged between the transmission and the generator, the rotating shaft opening of the wind turbine impeller is connected to the input shaft of the transmission through a fixed plate, the fixed plate is located on the side of the input shaft of the transmission, a corresponding bearing bracket is arranged below the input shaft of the transmission, and a locking device for fixing the position of the wind turbine impeller is arranged above the bearing bracket;

[0007] The locking device is provided with an automatic locking mechanism and a push-back connecting rod mechanism that moves opposite to the automatic locking mechanism. The locking device includes a locking sleeve and a T-shaped positioning rod device located above the bearing bracket. The fixing plate is provided with a plurality of positioning holes corresponding to the T-shaped positioning rod device.

[0008] The automatic locking mechanism comprises a positioning rod spring and a fixing column, wherein the T-shaped positioning rod device, the positioning rod spring and the fixing column all pass through the locking sleeve, one side of the positioning rod spring passes through the fixing column, the top surface of the thick column end of the T-shaped positioning rod device and the bottom surface of the spring through hole of the fixing column are both provided with a spring connecting column for fixing the positioning rod spring, and the fixing column is connected to the locking sleeve through a bolt structure;

[0009] The T-shaped positioning rod device comprises a T-shaped screw sleeve corresponding to the positioning hole, a sliding ball passing through the thin column end of the T-shaped screw sleeve, and a sliding ball fixing rod fixing the sliding ball, the sliding ball fixing rod passes through the T-shaped screw sleeve, the thick column end of the T-shaped screw sleeve is provided with a sealing cover for sealing the sliding ball fixing rod, the sealing cover is connected to the thick column end of the T-shaped screw sleeve by a bolt structure, the spring connecting column of the thick column end of the positioning rod device is located on one side of the sealing cover, the diameter of the sliding ball leakage outlet of the thin column end of the T-shaped screw sleeve is smaller than the diameter of the sliding ball, and one side of the fixing plate is provided with a sliding ball groove corresponding to the sliding ball;

[0010] The push-back connecting rod mechanism includes a fixed pull rod located on one side of the thick column end of the T-shaped screw sleeve and a pull rod located on one side of the locking sleeve. The fixed pull rod is connected to the center groove of the pull rod through a return rod. One side of the T-shaped screw sleeve is provided with a return groove corresponding to the fixed pull rod. Return fixing frames are provided on both sides of the return groove to fix the return position of the fixed pull rod, and the return fixing frames are connected by pins.

[0011] As an improvement, the braking device includes a brake disc located at the output end of the transmission, a brake frame for controlling the rotation speed of the brake disc, and a brake controller for controlling the brake frame. The brake disc is connected to the output end of the transmission via a key, the brake frame is connected to the brake controller via a wire, and the output end of the transmission is connected to the input end of the generator via a coupling.

[0012] As an improvement, a protective box is provided at the output end of the wind turbine impeller shaft, the shaft opening of the wind turbine impeller passes through the side wall of the protective box, and the transmission, power generation device, brake frame and bearing bracket are all connected to the bottom surface of the protective box through a bolt structure.

[0013] The advantage of the utility model over the prior art is that after the brake device decelerates, the pin of the return fixing frame is pulled out, and the T-shaped positioning rod device of the device is pushed by the positioning rod spring so that the sliding ball at the thin column end of the T-shaped positioning rod device slides in the sliding ball groove on the fixing plate, and the sliding ball groove and the positioning hole are concentric circles. When the T-shaped positioning rod device slides to the top of the positioning hole, the T-shaped positioning rod device will slide into the positioning hole under the push of the positioning rod spring, thereby aligning and fixing, thereby avoiding the situation where the locking device and the positioning hole are difficult to align. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the overall structural diagram of the wind turbine impeller locking device of the utility model.

[0015] Figure 2 It is an exploded view of the locking device of the wind turbine impeller locking device of the utility model.

[0016] Figure 3 It is a cross-sectional view of a T-shaped positioning rod device of a wind turbine impeller locking device of the utility model.

[0017] Figure 4 The utility model is a structural diagram of a return connecting rod mechanism of a wind turbine impeller locking device.

[0018] Figure 5 The utility model is a brake device structure diagram of a wind turbine impeller locking device.

[0019] As shown in the figure: 1. Wind turbine impeller; 11. Fixed plate; 2. Transmission; 3. Power generation device; 4. Braking device; 41. Brake disc; 42. Brake frame; 43. Brake controller; 5. Bearing bracket; 6. Locking device; 61. Locking sleeve; 62. T-shaped positioning rod device; 621. T-shaped screw sleeve; 622. Sliding ball; 6221. Sliding ball groove; 623. Sliding ball fixing rod; 624. Sealing cover; 63. Positioning hole; 7. Automatic locking mechanism; 71. Positioning rod spring; 711. Spring connecting column; 72. Fixed column; 8. Push-back connecting rod mechanism; 81. Fixed pull rod; 82. Pull rod; 83. Return rod; 84. Return groove; 85. Return fixing frame; 9. Protective box. DETAILED DESCRIPTION

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0021] As the instruction manual Figure 1 , 2, 3, as shown, a wind turbine impeller locking device comprises a wind turbine impeller 1, a transmission 2 and a generator 3 are arranged at the rotating shaft opening of the wind turbine impeller in sequence, a brake device 4 is arranged between the transmission 2 and the generator 3, the wind turbine impeller 1 is connected to the transmission 2 through a fixed plate 11 on one side of the input shaft of the transmission 2, a corresponding bearing bracket 5 is arranged below the input shaft of the transmission 2, a locking device 6 for fixing the position of the wind turbine impeller 1 is arranged above the bearing bracket 5, an automatic locking mechanism 7 and a push-back connecting rod mechanism 8 moving opposite to the automatic locking mechanism 7 are arranged inside the locking device 6, the locking device 6 comprises a The locking sleeve 61 and the T-shaped positioning rod device 62, the interior of the fixed plate 11 is provided with a plurality of positioning holes 63 corresponding to the T-shaped positioning rod device 62, the automatic locking mechanism 7 includes a positioning rod spring 71 and a fixing column 72, the T-shaped positioning rod device 62, the positioning rod spring 71 and the fixing column 72 all pass through the locking sleeve 61, one side of the positioning rod spring 71 passes through the fixing column 72, the top surface of the thick column end of the T-shaped positioning rod device 62 and the bottom surface of the spring through hole of the fixing column 72 are both provided with a spring connecting column 711 for fixing the positioning rod spring 71, the fixing column 72 is connected to the locking sleeve 61 through a bolt structure, and the T-shaped positioning rod device 62 The positioning rod device 62 comprises a T-shaped screw sleeve 621 corresponding to the positioning hole 63, a sliding ball 622 passing through the thin column end of the T-shaped screw sleeve 621, and a sliding ball fixing rod 623 fixing the sliding ball 622. The sliding ball fixing rod 623 passes through the T-shaped screw sleeve 621. The thick column end of the T-shaped screw sleeve 621 is provided with a sealing cover 624 for sealing the sliding ball fixing rod 623. The sealing cover 624 is connected to the thick column end of the T-shaped screw sleeve 621 through a bolt structure. The spring connecting column 711 of the thick column end of the positioning rod device 62 is located on one side of the sealing cover 624. The diameter of the leakage outlet of the sliding ball 622 at the thin column end of the T-shaped screw sleeve 621 is less than The diameter of the sliding ball 622, a sliding ball groove 6221 corresponding to the sliding ball 622 is provided on one side of the fixed disk 11, a protective box 9 is provided at the output end of the shaft of the wind turbine impeller 1, and the shaft opening of the wind turbine impeller 1 passes through the side wall of the protective box 9, and the transmission 2, the power generation device 3, the brake frame 42 and the bearing bracket 5 are all connected to the bottom surface of the protective box 9 through a bolt structure, and the sliding trajectory of the sliding ball 622 in the sliding ball groove 6221 is concentric with the positioning hole 63. When the fixed disk 11 rotates, the T-shaped positioning rod device 62 where the sliding ball 622 is located is concentric with the positioning hole 63, and the locking action is automatically completed through the thrust of the positioning rod spring 71.

[0022] As the instruction manual Figure 1 , 45, the push-back connecting rod mechanism 8 includes a fixed rod 81 located on one side of the thick column end of the T-shaped screw sleeve 621 and a rod 82 located on one side of the locking sleeve 61, the fixed rod 81 is connected to the central groove of the rod 82 through a return rod 83, one side of the T-shaped screw sleeve 621 is provided with a return groove 84 corresponding to the fixed rod 81, and both sides of the return groove 84 are provided with return fixing frames 85 for fixing the return position of the fixed rod 81, and the return fixing frames 85 are connected by pins, and the brake device 4 It includes a brake disc 41 located at the output end of the transmission 2, a brake frame 42 for controlling the rotation speed of the brake disc 41, and a brake controller 43 for controlling the brake frame 42. The brake disc 41 is connected to the output end of the transmission 2 through a key, the brake frame 42 is connected to the brake controller 43 through a wire, and the output end of the transmission 2 is connected to the input end of the generator 3 through a coupling. When the T-shaped positioning rod device 62 is returned to the position before starting, the pull rod 82 is toggled, and the fixed pull rod 81 returns to the origin under the pull of the return rod 83.

[0023] During the specific implementation of the utility model, the shaft opening of the wind turbine impeller 1 is passed through the side wall of the protection box 9 and fixed to the fixing plate 11 by screws. The transmission 2 where the fixing plate 11 is located is fixed to the bottom surface of the protection box 9 by screws. The bearing bracket 5 is placed below the input shaft of the transmission 2 and fixed in position by screws. The locking device 6 above the bearing bracket 5 has a through hole corresponding to the T-shaped positioning rod device 62 inside. The T-shaped screw sleeve 621 of the T-shaped positioning rod device 62 is passed through the through hole of the T-shaped positioning rod device 62, the fixing rod 81 is passed through the return groove 84, the sliding ball 622 is put into the through hole above the T-shaped screw sleeve 621, and then the sliding ball fixing rod 623 is passed through the internal through hole of the T-shaped screw sleeve 621, and the sealing cover 624 is used to fix. Fix the thick column end of the T-shaped screw sleeve 621, align the screw holes of the two, fix with screws, insert the positioning rod spring 71 on the spring connecting column 711 of the sealing cover 624, use the spring connecting column 711 inside the fixing column 72 to connect the other end of the positioning rod spring 71, and screw the fixing column 72 into the screw hole of the T-shaped screw sleeve 621 through the outer thread; insert the connecting key into the output end of the transmission 2, insert the brake disc 41 into the connecting key at the output end of the transmission 2 to fix it, install the brake frame 42 on the disc surface of the brake disc 41, and fix the brake frame 42 to the bottom surface of the protective box 9 with screws. The output end of the transmission 2 is connected to the input end of the generator 3 through a coupling, the screw holes of the generator 3 are aligned with the screw holes on the bottom surface of the protective box 9, and the screws are screwed in.

[0024] When in use, the brake controller 43 is used to control the speed of the brake disc 41. When the speed of the input shaft of the speed transmission 2 is reduced to a safe speed, the pin in the return fixing frame 85 is pulled out, and the sliding ball 622 of the T-shaped positioning rod device 62 enters the sliding ball groove 6221 of the fixed disk 11 under the push of the positioning rod spring 71. When the positioning hole 63 of the fixed disk 11 is concentric with the T-shaped positioning rod device 62, the T-shaped positioning rod device 62 slides into the positioning hole 63 under the push of the positioning rod spring 71, so that its impeller is fixed in position. The brake controller 43 is in the on state at this time. When the maintenance personnel finishes the maintenance, they pull the pull rod 82 to pull the fixed pull rod 81 back to the starting origin driven by the return rod 83, insert the pin of the return fixing frame 85 back into the fixing hole of the return fixing frame 85, fix the T-shaped positioning rod device 62 integrated with the fixed pull rod 81 in the pushed-out original position, and finally release the brake controller 43 to restore the device to normal use.

[0025] The utility model and its implementation methods are described above, and such description is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it, without departing from the purpose of the invention of the utility model, they can design a structure and implementation method similar to the technical solution without creativity, which should belong to the protection scope of the utility model.

Claims

1. A wind turbine impeller locking device, comprising a wind turbine impeller (1), wherein a transmission (2) and a generator (3) are arranged at a rotating shaft opening of the wind turbine impeller in sequence, wherein a brake device (4) is arranged between the transmission (2) and the generator (3), wherein the rotating shaft opening of the wind turbine impeller (1) is connected to an input shaft of the transmission (2) via a fixing plate (11), wherein the fixing plate (11) is located on a side of the input shaft of the transmission (2), wherein a bearing bracket (5) corresponding to the input shaft of the transmission (2) is arranged below the input shaft of the transmission (2), and a locking device (6) for fixing the position of the wind turbine impeller (1) is arranged above the bearing bracket (5), wherein the locking device (6) for fixing the position of the wind turbine impeller (1) is characterized in that: An automatic locking mechanism (7) and a push-back connecting rod mechanism (8) moving in the opposite direction to the automatic locking mechanism (7) are provided inside the locking device (6); the locking device (6) comprises a locking sleeve (61) and a T-shaped positioning rod device (62) located above the bearing bracket (5); and a plurality of positioning holes (63) corresponding to the T-shaped positioning rod device (62) are provided inside the fixing plate (11); The automatic locking mechanism (7) comprises a positioning rod spring (71) and a fixing column (72); the T-shaped positioning rod device (62), the positioning rod spring (71) and the fixing column (72) all pass through the locking sleeve (61); one side of the positioning rod spring (71) passes through the fixing column (72); the top surface of the thick column end of the T-shaped positioning rod device (62) and the bottom surface of the spring through hole of the fixing column (72) are both provided with a spring connecting column (711) for fixing the positioning rod spring (71); and the fixing column (72) is connected to the locking sleeve (61) via a bolt structure; The T-shaped positioning rod device (62) comprises a T-shaped screw sleeve (621) corresponding to the positioning hole (63), a sliding ball (622) passing through the thin column end of the T-shaped screw sleeve (621), and a sliding ball fixing rod (623) fixing the sliding ball (622); the sliding ball fixing rod (623) passes through the T-shaped screw sleeve (621), and the thick column end of the T-shaped screw sleeve (621) is provided with a sealing cover (624) for sealing the sliding ball fixing rod (623). The sealing cover (624) is connected to the thick column end of the T-shaped screw sleeve (621) by a bolt structure, the spring connection column (711) of the thick column end of the positioning rod device (62) is located on one side of the sealing cover (624), the diameter of the leakage outlet of the sliding ball (622) at the thin column end of the T-shaped screw sleeve (621) is smaller than the diameter of the sliding ball (622), and one side of the fixed plate (11) is provided with a sliding ball groove (6221) corresponding to the sliding ball (622); The push-back connecting rod mechanism (8) comprises a fixed pull rod (81) located on one side of the thick column end of the T-shaped screw sleeve (621) and a pull rod (82) located on one side of the locking sleeve (61); the fixed pull rod (81) is connected to the central groove of the pull rod (82) via a return rod (83); a return groove (84) corresponding to the fixed pull rod (81) is provided on one side of the T-shaped screw sleeve (621); return fixing frames (85) for fixing the return position of the fixed pull rod (81) are provided on both sides of the return groove (84); the return fixing frames (85) are connected via pins.

2. The wind turbine impeller locking device according to claim 1, characterized in that: The brake device (4) comprises a brake disc (41) located at the output end of the transmission (2), a brake frame (42) for controlling the rotation speed of the brake disc (41), and a brake controller (43) for controlling the brake frame (42); the brake disc (41) is connected to the output end of the transmission (2) via a key, the brake frame (42) is connected to the brake controller (43) via a wire, and the output end of the transmission (2) is connected to the input end of the generator (3) via a coupling.

3. The wind turbine impeller locking device according to claim 2, characterized in that: A protection box (9) is provided on one side of the rotating shaft opening of the wind turbine impeller (1); the rotating shaft opening of the wind turbine impeller (1) passes through the side wall of the protection box (9) and is connected to a fixing plate (11); the fixing plate (11) is connected to the rotating shaft opening of the wind turbine impeller (1) via a bolt structure; and the transmission (2), the power generation device (3), the brake frame (42) and the bearing bracket (5) are all connected to the bottom surface of the protection box (9) via a bolt structure.

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