A wind power generator stator core press-fitting device

Abstract

The utility model discloses a kind of wind power generator stator core press fitting device, comprising: first fixed frame;The top of the first fixed frame is fixed with second fixed frame, the top of the first fixed frame is fixedly embedded with first threaded sleeve, the inner cavity of the first threaded sleeve is threadedly connected with outer thread protection cylinder, the top of the second fixed frame is fixedly embedded with second threaded sleeve, the inner cavity of the second threaded sleeve is threadedly connected with extruding screw rod, the utility model is connected with wind power generator shell flange by mounting seat, realize the fixation of device and shell, then stator core is placed in outer thread protection cylinder, stator core is limited, realize the accurate alignment of stator core and shell, then extruding screw rod is pressed in outer thread protection cylinder to stator core again, make stator core from outer thread protection cylinder press fitting such as shell, complete press fitting work, equipment structure is simple, convenient for outdoor carrying, relatively manual press fitting is more accurate and labor-saving.

Description

Technical Field

[0001] This utility model relates to the field of generator disassembly and assembly technology, specifically a wind turbine generator stator core pressing device. Background Technology

[0002] The stator core is an important component of the motor's magnetic circuit. Together with the rotor core and the air gap between the stator and rotor, it forms the complete magnetic circuit of the motor. It also houses the windings. During generator operation, the core is subjected to a combination of mechanical forces, thermal stress, and electromagnetic forces.

[0003] During daily use, wind turbines require regular maintenance. After disassembling and maintaining the wind turbine, the stator core needs to be reinstalled in the generator housing. Usually, the pressing of the stator core requires specialized equipment. However, wind turbines are typically located outdoors, making it inconvenient to operate specialized equipment. Manual loading is not only laborious but also prone to causing deviations in the stator core loading. Therefore, a simple and easy-to-operate device is needed for pressing the wind turbine stator core outdoors. Utility Model Content

[0004] The purpose of this utility model is to provide a wind turbine generator stator core pressing device. Through the cooperation of a pressing screw and a second threaded sleeve, the stator core is pressed slowly into the generator housing by rotating the pressing screw. Simultaneously, the stator core is limited within the external threaded protective sleeve to ensure that it does not shift during pressing. Furthermore, the first fixing frame mounting base is fixed to the wind turbine generator housing for precise positioning. The device has a simple structure and is convenient for outdoor operation, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wind turbine generator stator core pressing device, comprising: First fixed frame; A second fixed frame is fixed to the top of the first fixed frame, and a first threaded sleeve is fixedly embedded in the top of the first fixed frame. An external threaded protective cylinder is threadedly connected to the inner cavity of the first threaded sleeve. A second threaded sleeve is fixedly embedded in the top of the second fixed frame, and a pressing screw is threadedly connected to the inner cavity of the second threaded sleeve. One end of the pressing screw passes through the external threaded protective cylinder. The first fixing frame is installed on the mounting base, which is connected to the flange of the wind turbine generator housing.

[0006] Preferably, a support plate is movably provided at the lower end of the external thread protective cylinder, the two ends of the support plate are in contact with the inner sidewall of the first fixed frame, and a hand dial is fixed at the top of the external thread protective cylinder.

[0007] Preferably, the top of the extrusion screw is fixed with a rotating handle, and the bottom of the extrusion screw is rotatably connected to an extrusion plate via a bearing. The extrusion plate is located in the inner cavity of the external thread protective cylinder, and the outer diameter of the extrusion plate is the same as the inner diameter of the external thread protective cylinder.

[0008] Preferably, limiting grooves are provided on both sides of the inner cavity of the first fixed frame, and limiting blocks are slidably provided in the inner cavity of the limiting grooves. The opposing side of the limiting blocks passes through the limiting grooves and is fixed to both ends of the support plate.

[0009] Preferably, a groove is provided at the lower end of the outer side of the external threaded protective cylinder, and the support plate is movably sleeved in the groove.

[0010] Preferably, the mounting base has multiple sets of mounting holes, and mounting bolts are movably disposed in the mounting holes. The mounting bolts pass through the mounting base and are threadedly connected to a connecting nut.

[0011] Preferably, the length of the extrusion screw is greater than the sum of the heights of the first and second fixed frames, and the extrusion screw, extrusion plate, and the central axis of the external threaded protective cylinder are coaxial.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This invention uses a mounting base to connect with the flange of the wind turbine generator housing to fix the device to the housing. Then, the stator core is placed inside the external threaded protective cylinder to limit the stator core and achieve precise alignment between the stator core and the housing. Subsequently, the stator core is pressed into the housing by the pressing screw, thus pressing the stator core from the external threaded protective cylinder into the housing, completing the pressing work. The equipment has a simple structure, is easy to carry outdoors, and is more accurate and labor-saving than manual pressing.

[0013] This invention ensures that the stator core is subjected to uniform force during press-fitting by limiting the positions of the extrusion screw and the external threaded protective cylinder, thus preventing the stator core from shaking. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a partial three-dimensional structural schematic diagram of the present invention; Figure 3 This is a three-dimensional structural diagram showing the disassembled external thread protective cylinder and support plate of this utility model.

[0015] The following are the labels in the diagram: 1. First fixed frame; 2. Second fixed frame; 3. First threaded sleeve; 4. External threaded protective sleeve; 5. Second threaded sleeve; 6. Extrusion screw; 7. Mounting base; 8. Support plate; 9. Hand dial; 10. Handle; 11. Extrusion plate; 12. Limiting groove; 13. Limiting block; 14. Groove; 15. Mounting hole; 16. Mounting bolt; 17. Connecting nut. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] This utility model provides, for example Figures 1-3 The wind turbine generator stator core pressing device shown includes: First fixed frame 1; The top of the first fixed frame 1 is fixed with a second fixed frame 2. The top of the first fixed frame 1 is fixedly embedded with a first threaded sleeve 3. The inner cavity of the first threaded sleeve 3 is threadedly connected with an external threaded protective cylinder 4. The top of the second fixed frame 2 is fixedly embedded with a second threaded sleeve 5. The inner cavity of the second threaded sleeve 5 is threadedly connected with a pressing screw 6. One end of the pressing screw 6 passes through the external threaded protective cylinder 4. The first fixed frame 1 is installed on the mounting base 7, and the mounting base 7 is connected to the flange of the wind turbine generator housing; The device is fixed to the wind turbine housing by connecting the mounting base 7 with the flange of the wind turbine housing. Then, the stator core is placed inside the external threaded protective cylinder 4 to limit the stator core and achieve precise alignment between the stator core and the housing. Subsequently, the pressing screw 6 applies pressure to the stator core inside the external threaded protective cylinder 4, pressing the stator core from the external threaded protective cylinder 4 into the housing, thus completing the pressing work. The equipment has a simple structure, is easy to carry outdoors, and is more accurate and labor-saving than manual pressing.

[0018] Among them, such as Figure 2-3 As shown: The lower end of the external thread protective cylinder 4 is movably provided with a support plate 8. Both ends of the support plate 8 are in contact with the inner sidewall of the first fixed frame 1. The top of the external thread protective cylinder 4 is fixed with a hand turntable 9. The support plate 8 is provided to facilitate the limiting of the external thread protective cylinder 4, ensuring that the bottom and top positions of the external thread protective cylinder 4 are on the extension line of the central axis of the extrusion screw 6 when the external thread protective cylinder 4 is adjusted up and down, so as to accurately press the stator core into the machine housing.

[0019] Furthermore, such as Figure 1As shown: The top of the extrusion screw 6 is fixed with a rotating handle 10, and the bottom of the extrusion screw 6 is rotatably connected to an extrusion plate 11 via a bearing. The extrusion plate 11 is located in the inner cavity of the external thread protective cylinder 4. The outer diameter of the extrusion plate 11 is the same as the inner diameter of the external thread protective cylinder 4. The extrusion screw 6 can be rotated and driven by the rotating handle 10. At the same time, the extrusion plate 11 can realize the movable connection between the extrusion screw 6 and the stator core, so as to avoid wear on the stator core when the extrusion screw 6 rotates, and at the same time make the stator core evenly stressed.

[0020] Preferred, such as Figure 2 As shown: Limiting grooves 12 are provided on both sides of the inner cavity of the first fixed frame 1. Limiting blocks 13 are slidably provided in the inner cavity of the limiting grooves 12. The opposite side of the limiting blocks 13 passes through the limiting grooves 12 and is fixed to both ends of the support plate 8. Through the cooperation of the limiting blocks 13 and the limiting grooves 12, the support plate 8 can be easily limited, the stability of the support plate 8 can be maintained, and the shaking of the external thread protective cylinder 4 can be prevented.

[0021] It is worth noting that, such as Figure 3 As shown: The lower end of the outer side of the external thread protective sleeve 4 is provided with a groove 14, and the support plate 8 is movably sleeved in the groove 14. The groove 14 facilitates the movable connection between the support plate 8 and the external thread protective sleeve 4, allowing the support plate 8 to move up and down with the external thread protective sleeve, while also allowing the external thread protective sleeve 4 to rotate freely.

[0022] Further preferred embodiments, such as Figure 2 As shown: The mounting base 7 has multiple sets of mounting holes 15, and mounting bolts 16 are movably installed in the mounting holes 15. The mounting bolts 16 pass through the mounting base 7 and are threadedly connected to the connecting nuts 17. Through the cooperation of the mounting bolts 16 and the connecting nuts 17, the mounting base 7 is connected to the flange of the wind turbine housing, and the device is fixed on the housing, which facilitates the press-fit operation.

[0023] In addition, such as Figure 1 As shown: The length of the extrusion screw 6 is greater than the sum of the heights of the first fixed frame 1 and the second fixed frame 2. The extrusion screw 6, the extrusion plate 11 and the central axis of the external thread protective cylinder 4 are coaxial. By limiting the length of the extrusion screw 6, it is ensured that the extrusion plate 11 can penetrate deep into the machine housing to apply pressure to the stator core. At the same time, it is ensured that the extrusion screw 6, the extrusion plate 11 and the external thread protective cylinder 4 are coaxial, thus determining the position of the stator core.

[0024] In practical use, align the mounting base 7 with the flange of the wind turbine generator body, and fix the mounting base 7 with the mounting bolts 16 and connecting nuts 17. Then, place the stator core inside the external thread protective cylinder 4, and then turn the handle 10 to drive the extrusion screw 6. The extrusion screw 6 rotates in the second threaded sleeve 5 and moves downward, which in turn drives the extrusion plate 11 to apply pressure to the stator core, slowly pressing the stator core into the housing. During this process, the hand dial 9 can be turned to move the external thread protective cylinder 4 downward, and the external thread protective cylinder 4 will position and protect the stator core.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wind turbine generator stator core pressing device, characterized in that, include: First fixed frame (1); A second fixed frame (2) is fixed to the top of the first fixed frame (1). A first threaded sleeve (3) is fixedly embedded in the top of the first fixed frame (1). An external threaded protective cylinder (4) is threadedly connected to the inner cavity of the first threaded sleeve (3). A second threaded sleeve (5) is fixedly embedded in the top of the second fixed frame (2). A pressing screw (6) is threadedly connected to the inner cavity of the second threaded sleeve (5). One end of the pressing screw (6) passes through the external threaded protective cylinder (4). The first fixed frame (1) is installed on the mounting base (7), which is connected to the flange of the wind turbine generator housing.

2. The wind turbine generator stator core pressing device according to claim 1, characterized in that: The lower end of the external thread protective cylinder (4) is movably provided with a support plate (8), the two ends of the support plate (8) are in contact with the inner sidewall of the first fixed frame (1), and a hand turntable (9) is fixed on the top of the external thread protective cylinder (4).

3. The wind turbine generator stator core pressing device according to claim 1, characterized in that: The top of the extrusion screw (6) is fixed with a rotating handle (10), and the bottom of the extrusion screw (6) is rotatably connected to an extrusion plate (11) via a bearing. The extrusion plate (11) is located in the inner cavity of the external thread protective cylinder (4), and the outer diameter of the extrusion plate (11) is the same as the inner diameter of the external thread protective cylinder (4).

4. The wind turbine generator stator core pressing device according to claim 1, characterized in that: Limiting grooves (12) are provided on both sides of the inner cavity of the first fixed frame (1). Limiting blocks (13) are slidably provided in the inner cavity of the limiting grooves (12). The opposite side of the limiting blocks (13) passes through the limiting grooves (12) and is fixed to both ends of the support plate (8).

5. The wind turbine generator stator core pressing device according to claim 2, characterized in that: The lower end of the outer side of the external threaded protective cylinder (4) is provided with a groove (14), and the support plate (8) is movably sleeved in the groove (14).

6. The wind turbine generator stator core pressing device according to claim 1, characterized in that: The mounting base (7) has multiple sets of mounting holes (15), and mounting bolts (16) are movably disposed in the mounting holes (15). The mounting bolts (16) pass through the mounting base (7) and are threadedly connected to the connecting nut (17).

7. The wind turbine generator stator core pressing device according to claim 1, characterized in that: The length of the extrusion screw (6) is greater than the height of the first fixed frame (1) and the second fixed frame (2), and the extrusion screw (6), the extrusion plate (11) and the central axis of the external thread protective cylinder (4) are coaxial.

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