A wind turbine main shaft end cover dismounting device

Abstract

The utility model provides a kind of wind turbine main shaft end cover dismounting device, it is related to wind turbine maintenance technical field.This kind of wind turbine main shaft end cover dismounting device, including fixed frame, the outside of fixed frame is equipped with motor one, the drive shaft of motor one passes through fixed frame side wall and is welded with reciprocating lead screw, the outer wall of reciprocating lead screw is connected with lead screw nut one, the inside of movable frame is fixedly connected in lead screw nut one, the outside of movable frame is equipped with motor two, the drive shaft of motor two passes through movable frame and is welded with two-way screw rod, the outer wall of two-way screw rod is connected with two groups of lead screw nut two.The utility model is operated motor two, so that two groups of arc clamping block move towards, so that the end cover body of different diameter size can be clamped and fixed, then again operating motor one, so that end cover body can be automatically separated from the rotating main shaft of unit, so as not to be manually lifted out, reduce manpower burden, improve dismounting efficiency simultaneously.

Description

Technical Field

[0001] This application relates to the field of wind turbine maintenance technology, and in particular to a device for disassembling and assembling the main shaft end cover of a wind turbine. Background Technology

[0002] A wind turbine is a system that converts the kinetic energy of wind into electrical energy. A wind turbine consists of a rotor and a generator; the rotor includes blades, a hub, and reinforcing components; it generates electricity by rotating the blades under wind power and the generator head rotates. The main shaft end cover of a wind turbine requires a disassembly and assembly device for installation and removal.

[0003] While existing wind turbine main shaft end cover disassembly and assembly devices can disassemble or assemble end covers, they cannot separate end covers of different diameters, nor can they automatically remove the end covers. The end covers must be manually separated from the main shaft, which increases the physical burden on maintenance personnel. Utility Model Content

[0004] This application provides a wind turbine main shaft end cover disassembly and assembly device to solve the problem that the prior art cannot disassemble and assemble end covers of different diameters and cannot automatically separate the end cover from the main shaft.

[0005] This application provides a device for disassembling and assembling a wind turbine main shaft end cover, including a fixed frame. A motor is mounted on the outer side of the fixed frame. The drive shaft of the motor passes through the side wall of the fixed frame and is welded with a reciprocating lead screw. A lead screw nut is connected to the outer wall of the reciprocating lead screw. The lead screw nut is fixedly connected to the inside of a movable frame. A motor is mounted on the outer side of the movable frame. The drive shaft of the motor passes through the movable frame and is welded with a bidirectional rotary lead screw. Two sets of lead screw nuts are connected to the outer wall of the bidirectional rotary lead screw. The two sets of lead screw nuts are fixedly connected to the inside of two sets of T-shaped movable blocks. Three sets of connecting columns are welded to the sides of the two sets of T-shaped movable blocks. The other ends of the three sets of connecting columns are welded to the side of an arc-shaped clamping block. There are two sets of arc-shaped clamping blocks. An end cover body is disposed between the two sets of arc-shaped clamping blocks.

[0006] Preferably, the movable frame has two sets of inner holes, and each set of inner holes is slidably connected to a guide post. The two sets of guide posts are welded together to the inner sidewall of the fixed frame.

[0007] Preferably, two sets of bearings are fixedly connected to the two inner sidewalls of the movable frame, and a movable shaft is connected between the two sets of bearings. There are two sets of movable shafts, and the two sets of movable shafts are symmetrically distributed inside the movable frame.

[0008] Preferably, the interior of each of the two sets of T-shaped movable blocks is provided with two sets of inner holes, and a guide post II is slidably connected inside each set of inner holes. The two sets of guide posts II are welded together to the inner sidewall of the movable frame.

[0009] Preferably, the inner sides of the two sets of arc-shaped clamping blocks are respectively fixedly connected with arc-shaped rubber pads, and the arc-shaped rubber pads are made of rubber.

[0010] Preferably, the end cover body is internally slidably connected to the unit's rotating main shaft, and the unit's rotating main shaft is connected to the main shaft box.

[0011] Preferably, four sets of square support blocks are fixedly connected to the bottom of the fixed frame. Each set of square support blocks has a mounting hole on its side. A compression spring is fixedly connected inside the mounting hole, and a limit buckle is fixedly connected to the end of the compression spring.

[0012] Preferably, the square support block is slidably connected to a square frame, the side of the square frame has multiple sets of locking holes, the locking holes are slidably connected to the limiting buckle, the bottom of the square frame has an inner groove, the inside of the inner groove is equipped with a moving wheel, and a brake plate is provided on one side of the moving wheel.

[0013] Beneficial effects:

[0014] Considering the limitations of existing technology in disassembling and assembling end caps of different diameters and in automatically separating the end caps from the main shaft, the second motor is operated to move two sets of arc-shaped clamping blocks toward each other, thereby clamping and fixing the end cap bodies of different diameters. Then, the first motor is operated to automatically separate the end cap bodies from the rotating main shaft of the unit. This eliminates the need for manual lifting, reduces manpower burden, and improves disassembly and assembly efficiency.

[0015] The above description is merely an overview of the technical solutions of the embodiments of this application. In order to better understand the technical means of the embodiments of this application and to implement them in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the embodiments of this application more obvious and understandable, specific implementation methods of this application are described below. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a front view structural diagram of a wind turbine main shaft end cover disassembly and assembly device according to the present invention.

[0018] Figure 2 This is an exploded view of the automatic separation component of a wind turbine main shaft end cover disassembly and assembly device according to this utility model.

[0019] Figure 3 This is an exploded view of the automatic clamping and disassembly component of a wind turbine main shaft end cover disassembly and assembly device according to this utility model.

[0020] Figure 4 This is an exploded view of the height adjustment component of a wind turbine main shaft end cover disassembly and assembly device according to the present invention.

[0021] Figure 5 This is a top view of the structure of a wind turbine main shaft end cover disassembly and assembly device according to the present invention.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Fixed frame; 2. Motor 1; 3. Reciprocating lead screw; 4. Lead screw nut 1; 5. Movable frame; 6. Guide column 1; 7. Bearing; 8. Movable shaft; 9. Motor 2; 10. Bidirectional lead screw; 11. Lead screw nut 2; 12. T-shaped movable block; 13. Guide column 2; 14. Connecting column; 15. Arc-shaped clamping block; 16. Arc-shaped rubber pad; 17. End cover body; 18. Unit rotating main shaft; 19. Main shaft box; 20. Square support block; 21. Mounting hole; 22. Compression spring; 23. Limit buckle; 24. Square frame; 25. Locking hole; 26. Moving wheel; 27. Brake plate. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims and drawings of this application are intended to cover non-exclusive inclusion.

[0026] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of the phrase "embodiment" in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0027] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this application. For example, in the description of this application, terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0028] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, "connection" or "joining" in mechanical structures can refer to a physical connection, such as a fixed connection, for example, a connection fixed by fasteners, such as a connection fixed by screws, bolts, or other fasteners; a physical connection can also be a detachable connection, such as a snap-fit ​​or interlocking connection; a physical connection can also be an integral connection, such as a connection formed by welding, bonding, or integral molding. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0029] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0030] This utility model provides, for example Figure 1-5The wind turbine main shaft end cover disassembly and assembly device shown includes a fixed frame 1. A motor 2 is installed on the outside of the fixed frame 1. The drive shaft of the motor 2 passes through the side wall of the fixed frame 1 and is welded to a reciprocating screw 3. A screw nut 4 is connected to the outer wall of the reciprocating screw 3. The screw nut 4 is fixedly connected to the inside of a movable frame 5. A motor 9 is installed on the outside of the movable frame 5. The drive shaft of the motor 9 passes through the movable frame 5 and is welded to a bidirectional rotary screw 10. Two sets of screw nuts 11 are connected to the outer wall of the bidirectional rotary screw 10. The two sets of screw nuts 11 are fixedly connected to the inside of two sets of T-shaped movable blocks 12. Three sets of connecting columns 14 are welded to the sides of the two sets of T-shaped movable blocks 12. The other ends of the three sets of connecting columns 14 are welded to the side of an arc-shaped clamp 15. There are two sets of arc-shaped clamps 15. An end cover body 17 is provided between the two sets of arc-shaped clamps 15.

[0031] Among them, motor 2 is used to drive the reciprocating screw 3 to rotate, and the reciprocating screw 3 is used to drive the movable frame 5 where the screw nut 4 is located to move horizontally. The movable frame 5 is used to install the automatic clamping component. Motor 9 is used to drive the bidirectional rotary screw 10 to rotate. When the bidirectional rotary screw 10 rotates, it drives the two sets of T-shaped movable blocks 12 where the two sets of screw nuts 11 are located to move in opposite directions. The T-shaped movable blocks 12 are fixedly connected to the arc-shaped clamping blocks 15 through three sets of connecting columns 14. This allows the two sets of T-shaped movable blocks 12 to drive the two sets of arc-shaped clamping blocks 15 to move in opposite directions. When the two sets of arc-shaped clamping blocks 15 move in opposite directions, they can clamp and fix the end cap body 17 with different diameter sizes, thereby increasing the specification range of the disassembled end cap body 17.

[0032] The movable frame 5 has two sets of inner holes, and each set of inner holes is slidably connected to a guide post 6. The two sets of guide posts 6 are welded together to the inner wall of the fixed frame 1.

[0033] Among them, the two sets of guide posts 6 are used to guide the movement of the movable frame 5 and prevent the movable frame 5 from deviating.

[0034] Two sets of bearings 7 are fixedly connected to the two inner side walls of the movable frame 5, and a movable shaft 8 is connected between the two sets of bearings 7. There are two sets of movable shafts 8, and the two sets of movable shafts 8 are symmetrically distributed inside the movable frame 5.

[0035] The two sets of bearings 7 allow the movable shafts 8 to rotate inside them. When the movable frame 5 moves, the two sets of movable shafts 8 contact the top of the fixed frame 1 and rotate, thus reducing the resistance encountered by the movable frame 5 when it moves.

[0036] The two sets of T-shaped movable blocks 12 each have two sets of inner holes, and each set of inner holes is slidably connected to a guide post 13. The two sets of guide posts 13 are welded together to the inner wall of the movable frame 5.

[0037] Among them, the two sets of guide posts 13 are used to guide the movement of the two sets of T-shaped movable blocks 12 and prevent the two sets of T-shaped movable blocks 12 from deviating when they move.

[0038] Two sets of arc-shaped clamping blocks 15 have arc-shaped rubber pads 16 fixedly connected to their inner sides, and the arc-shaped rubber pads 16 are made of rubber.

[0039] The arc-shaped rubber pad 16 is designed to increase friction, so that the two sets of arc-shaped clamps 15 will not slip when clamping the end cap body 17.

[0040] The end cover body 17 is internally slidably connected to the unit's rotating main shaft 18, which is connected to the main shaft box 19.

[0041] The unit's rotating main shaft 18 is used to drive the components of the wind turbine to rotate, and the main shaft box 19 is used to install the unit's rotating main shaft 18.

[0042] The bottom of the fixed frame 1 is fixedly connected with four sets of square support blocks 20. Each set of square support blocks 20 has a mounting hole 21 on its side. A compression spring 22 is fixedly connected inside the mounting hole 21. A limit buckle 23 is fixedly connected to the end of the compression spring 22.

[0043] Among them, four sets of square support blocks 20 are used to support the fixed frame 1, and the mounting holes 21 are used to install the compression spring 22. The compression spring 22 is fixedly connected to the limit buckle 23. When the compression spring 22 is deformed and reset, the limit buckle 23 can perform telescopic movement, thereby limiting the buckle to the card hole 25 at different heights.

[0044] A square frame 24 is slidably connected to the outside of the square support block 20. Multiple sets of locking holes 25 are opened on the side of the square frame 24. The locking holes 25 are slidably connected to the limit buckle 23. An inner groove is opened at the bottom of the square frame 24. A moving wheel 26 is installed inside the inner groove. A brake plate 27 is provided on one side of the moving wheel 26.

[0045] The locking hole 25 is used to engage the limiting buckle 23, which can adjust the height of the square support block 20, thereby adjusting the height of the fixed frame 1. The four sets of moving wheels 26 drive the entire device to move, and the brake plate 27 is used to stop the moving wheels 26, so that the entire device can work stably when stationary.

[0046] Working principle: When using this wind turbine main shaft end cover disassembly and assembly device, the height of the four sets of square support blocks 20 is first adjusted by the height adjustment component, so that the end cover body 17 is positioned between the two sets of arc-shaped clamping blocks 15. Then, the motor 2 9 is operated, so that the motor 2 9 drives the bidirectional screw 10 to rotate through the drive shaft. When the bidirectional screw 10 rotates, it drives the two sets of T-shaped movable blocks 12, where the two sets of screw nuts 2 11 are located, to move in opposite directions. The two sets of T-shaped movable blocks 12 are fixedly connected to the two sets of arc-shaped clamping blocks 15 through three sets of connecting columns 14, so that the two sets of arc-shaped clamping blocks 15 move in opposite directions, thereby clamping and fixing the end cover body 17 with different diameter sizes.

[0047] After the end cover body 17 is fixed, operate motor 2 so that motor 2 drives the reciprocating screw 3 to rotate through the drive shaft. When the reciprocating screw 3 rotates, it drives the movable frame 5 where the screw nut 4 is located to move. This causes the end cover body 17 above the movable frame 5 to move, so that the end cover body 17 can be automatically removed from the main rotating shaft 18 of the unit, thus eliminating the need for manual lifting, reducing the burden of manpower, and improving the efficiency of disassembly and assembly.

[0048] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A device for disassembling and assembling the main shaft end cover of a wind turbine generator, comprising a fixing frame (1), characterized in that: A motor (2) is installed on the outside of the fixed frame (1). The drive shaft of the motor (2) passes through the side wall of the fixed frame (1) and is welded with a reciprocating screw (3). A screw nut (4) is connected to the outer wall of the reciprocating screw (3). The screw nut (4) is fixedly connected to the inside of the movable frame (5). A motor (9) is installed on the outside of the movable frame (5). The drive shaft of the motor (9) passes through the movable frame (5) and is welded with a bidirectional rotary screw (10). Two sets of screw nuts (11) are connected to the outer wall of the screw (10). The two sets of screw nuts (11) are fixedly connected to the inside of two sets of T-shaped movable blocks (12). Three sets of connecting columns (14) are welded to the sides of the two sets of T-shaped movable blocks (12). The other ends of the three sets of connecting columns (14) are welded to the side of the arc-shaped clamp (15). There are two sets of arc-shaped clamps (15). An end cap body (17) is provided between the two sets of arc-shaped clamps (15).

2. The wind turbine main shaft end cover disassembly and assembly device according to claim 1, characterized in that: The movable frame (5) has two sets of inner holes inside, and each set of inner holes is slidably connected to a guide post (6). The two sets of guide posts (6) are welded together to the inner wall of the fixed frame (1).

3. The wind turbine main shaft end cover disassembly and assembly device according to claim 1, characterized in that: Two sets of bearings (7) are fixedly connected to the two inner side walls of the movable frame (5), and a movable shaft (8) is connected between the two sets of bearings (7). There are two sets of movable shafts (8), and the two sets of movable shafts (8) are symmetrically distributed inside the movable frame (5).

4. The wind turbine main shaft end cover disassembly and assembly device according to claim 1, characterized in that: The two sets of T-shaped movable blocks (12) are respectively provided with two sets of inner holes. Each set of inner holes is slidably connected with a guide post (13). The two sets of guide posts (13) are welded together on the inner side wall of the movable frame (5).

5. The wind turbine main shaft end cover disassembly and assembly device according to claim 1, characterized in that: The inner sides of the two sets of arc-shaped clamps (15) are respectively fixedly connected with arc-shaped rubber pads (16), which are made of rubber.

6. The wind turbine main shaft end cover disassembly and assembly device according to claim 1, characterized in that: The end cap body (17) is internally slidably connected to the unit rotating main shaft (18), which is connected to the main shaft box (19).

7. The wind turbine main shaft end cover disassembly and assembly device according to claim 1, characterized in that: The bottom of the fixed frame (1) is fixedly connected to four sets of square support blocks (20). Each set of square support blocks (20) has a mounting hole (21) on its side. A compression spring (22) is fixedly connected inside the mounting hole (21). A limit buckle (23) is fixedly connected to the end of the compression spring (22).

8. A wind turbine main shaft end cover disassembly and assembly device according to claim 7, characterized in that: The square support block (20) is slidably connected to a square frame (24). The square frame (24) has multiple sets of locking holes (25) on its side. The locking holes (25) are slidably connected to the limiting buckle (23). The bottom of the square frame (24) has an inner groove. A moving wheel (26) is installed inside the inner groove. A brake plate (27) is provided on one side of the moving wheel (26).

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