Shaft core and stator mounting structure of fan

Abstract

The utility model discloses a mounting structure for a shaft core and a stator of a fan, belongs to the technical field of fan mounting, and aims to solve the problems that a user cannot conveniently disassemble and replace the stator of the fan, and the shaft core is easy to shake when rotating due to the lack of a corresponding positioning structure for mounting the shaft core. Comprising an outer shell, a shaft core body rotationally connected to the middle position of the outer shell in a penetrating mode, a stator body arranged outside the shaft core body in a sleeving mode and a positioning installation mechanism acting on the stator body. The positioning mounting mechanism comprises a limiting shell fixed in the inner cavity of the outer shell and located on one side of the stator body, a movable ring arranged on the other side of the inner cavity of the outer shell, and first positioning holes formed in one side of the fixed ring and distributed at equal intervals in a surrounding manner; according to the utility model, the stator body can be fixed, so that a user can conveniently mount and dismount the stator body, the stator body can be conveniently maintained and replaced, and the applicability of the device is improved.

Description

Technical Field

[0001] This utility model belongs to the field of wind turbine installation technology, specifically relating to a wind turbine shaft and stator installation structure. Background Technology

[0002] The fan shaft is the main component connecting the motor rotor and the fan impeller. It rotates the central shaft (i.e., the rod) due to the magnetic rotation of the motor's energized coils, causing the fan blades to rotate simultaneously and generate airflow. The fan stator is the stationary part of the fan, mainly composed of electromagnets and wound coils. Its function is to generate a magnetic field and magnetic flux, causing the rotor to rotate. The stator typically consists of an iron core, a frame, and coils. The iron core is used to mount and fix the coils, while the frame is used to fix the iron core and transmit torque to the foundation.

[0003] In existing technologies, the stator of the fan is mostly installed by directly fixing it into the housing, which makes it inconvenient for users to disassemble and replace the fan stator. Furthermore, the lack of a corresponding positioning structure for the shaft core makes it easy for the shaft core to wobble when rotating, thus affecting the normal operation of the fan. This limits the use of the device and is not conducive to its use.

[0004] Therefore, a shaft and stator mounting structure for a fan is needed to solve the problems in the existing technology, such as the inconvenience for users to disassemble and replace the fan stator and the lack of a corresponding positioning structure for the shaft installation, which easily causes the shaft to wobble when rotating. Utility Model Content

[0005] The purpose of this utility model is to provide a shaft and stator mounting structure for a fan to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a shaft and stator mounting structure for a fan, comprising an outer shell, a shaft body rotatably connected through the middle of the outer shell, a stator body sleeved outside the shaft body, and a positioning and mounting mechanism acting on the stator body;

[0007] The positioning and installation mechanism includes a limiting shell fixed to one side of the stator body within the inner cavity of the outer shell, a movable ring disposed on the other side of the inner cavity of the outer shell, a first positioning hole equidistantly distributed around one side of the fixed ring, a second positioning hole equidistantly distributed around one side of the movable ring, a cover inserted into one side of the inner cavity of the outer shell, a first bolt threaded to both ends of the outer peripheral surface of the outer shell, and a translation component acting on the movable ring. The first bolt is threadedly connected to both ends of the cover.

[0008] It should be noted in the solution that the translation component includes a storage slot at the upper and lower ends of the inner cavity of the outer shell, a threaded rod rotatably connected to the inner cavity of one of the storage slots, a threaded sleeve threaded to the outer circumferential surface of the threaded rod, an embedded shaft fixed to the inner cavity of the other storage slot, and a limiting sleeve slidably sleeved on the outer circumferential surface of the embedded shaft.

[0009] It is further worth noting that the translation component also includes connecting plates disposed at the upper and lower ends of one side of the movable ring, slots opened on the surfaces of the threaded sleeve and the limiting sleeve, threaded holes opened at the upper and lower ends of one side of the movable ring, a screwing groove opened at one side of the threaded rod, a second bolt threaded through and connected to the surface of the connecting plate, and a positioning pin fixed to the surface of the connecting plate at one end of the second bolt.

[0010] Furthermore, it should be noted that one side of the locating pin extends into the interior of the adjacent slot, and one side of the second bolt extends into the interior of the adjacent threaded hole.

[0011] In a preferred embodiment, the positioning and mounting mechanism further includes an anti-sway component, which includes a fixing plate fixedly sleeved on the outer peripheral surface of the shaft core body at a position within the inner cavity of the outer shell, and a limiting shell fixed to the inner wall of the outer shell near the fixing plate.

[0012] In a preferred embodiment, the anti-sway assembly further includes a groove formed in the inner cavity of the limiting shell, a fixed disc slidably inserted into the inner cavity of the groove, an annular groove communicating with both sides of the groove, and a limiting ring inserted into the inner cavity of the annular groove.

[0013] In a preferred embodiment, the side of the limiting rings that are close to each other is fixed to the surface of the fixed plate, and the fixed plate is slidably connected to the inner cavity of the plate groove.

[0014] Compared with the prior art, the fan shaft and stator mounting structure provided by this utility model has at least the following beneficial effects:

[0015] (1) After removing the cover on one side of the outer casing, insert the stator body into the interior of the outer casing, then fix the movable ring in the middle position between the threaded sleeve and the limiting sleeve, and then rotate the threaded rod so that the positioning shafts on both sides of the stator body can extend into the interior of the first positioning hole and the second positioning hole of the lightning position, thereby fixing the stator body. This makes it easier for the user to install and remove the stator body, and thus makes it easier to maintain and replace the stator body, thereby improving the applicability of the device.

[0016] (2) When the shaft core body rotates, it drives the fixed disk and the limiting ring to rotate. Under the resistance and limitation of the disk groove and the annular groove on the fixed disk and the limiting ring, the shaft core body is more stable during rotation, thus avoiding the shaking of the shaft core body during operation and rotation, thereby further improving the applicability of the device. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention from the front view.

[0018] Figure 2 This is a three-dimensional cross-sectional view of the present invention from the front view.

[0019] Figure 3 In this utility model Figure 2 Enlarged structural diagram at point A;

[0020] Figure 4 This is a three-dimensional structural diagram of the present invention from a side view.

[0021] Figure 5 In this utility model Figure 4 Enlarged structural diagram at point B;

[0022] Figure 6 This is a three-dimensional cross-sectional view of a part of the structure in this utility model;

[0023] Figure 7 In this utility model Figure 6 A magnified schematic diagram of the structure at point C.

[0024] In the diagram: 1. Outer shell; 2. Shaft core body; 3. Stator body; 4. Fixing ring; 5. First positioning hole; 6. Positioning shaft; 7. Storage slot; 8. Threaded rod; 9. Threaded sleeve; 10. Movable ring; 11. Second positioning hole; 12. Embedded shaft; 13. Limiting sleeve; 14. Limiting shell; 15. Disc groove; 16. Fixing disc; 17. Annular groove; 18. Limiting ring; 19. Cover; 20. First bolt; 21. Tightening groove; 22. Slot; 23. Positioning pin; 24. Connecting plate; 25. Threaded hole; 26. Second bolt. Detailed Implementation

[0025] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will be apparent to those skilled in the art.

[0026] Example 1

[0027] Please see Figure 1-7This utility model provides a shaft and stator mounting structure for a fan, including an outer shell 1, a shaft body 2 rotatably connected through the middle position of the outer shell 1, a stator body 3 sleeved outside the shaft body 2, and a positioning and mounting mechanism acting on the stator body 3.

[0028] The positioning and installation mechanism includes a limiting shell 14 fixed to the inner cavity of the outer shell 1 at one side of the stator body 3, a movable ring 10 disposed on the other side of the inner cavity of the outer shell 1, a first positioning hole 5 equidistantly distributed around one side of the fixed ring 4, a second positioning hole 11 equidistantly distributed around one side of the movable ring 10, a cover 19 inserted at one side of the inner cavity of the outer shell 1, a first bolt 20 threadedly connected to both ends of the outer circumferential surface of the outer shell 1, and a translation component acting on the movable ring 10. The first bolt 20 is threadedly connected to both ends of the cover 19.

[0029] When the stator body 3 needs to be positioned and fixed in the inner cavity of the outer shell 1, after the stator body 3 is inserted into the inner cavity of the outer shell 1, the positioning shaft 6 on one side of the stator body 3 extends into the inner cavity of the first positioning hole 5 at the adjacent position. Then, the movable ring 10 is moved horizontally by the translation component, thereby reducing the distance between the fixed ring 4 and the movable ring 10, so that the positioning shaft 6 on the other side of the stator body 3 can be inserted into the inner cavity of the second positioning hole 11 at the adjacent position, thereby clamping the stator body 3 in the inner cavity of the outer shell 1, thus completing the installation of the outer shell 1. After installation, the cover 19 is inserted into one side of the inner cavity of the outer shell 1 and the inner cavity of the outer shell 1 is sealed by rotating the first bolt 20 and the connection between the threaded structure at both ends of the first bolt 20 and the cover 19. This makes it convenient for the user to install and disassemble the stator body 3, and thus facilitates the maintenance and replacement of the stator body 3.

[0030] Please see Figure 1-7 The translation component includes a storage slot 7 at the upper and lower ends of the inner cavity surface of the outer shell 1, a threaded rod 8 rotatably connected to the inner cavity of one of the storage slots 7, a threaded sleeve 9 threadedly connected to the outer circumferential surface of the threaded rod 8, an embedded shaft 12 fixed to the inner cavity of the other storage slot 7, and a limiting sleeve 13 slidably sleeved on the outer circumferential surface of the embedded shaft 12, a slot 22 on the surface of the threaded sleeve 9 and the limiting sleeve 13 on the upper and lower ends of the connecting plate on one side of the movable ring 10, threaded holes 25 on the upper and lower ends of the movable ring 10, a turning groove on one side of the threaded rod 8 penetrating a second bolt 26 threadedly connected to the surface of the connecting plate 24, and a positioning pin 23 fixed on the surface of the connecting plate 24 at one end of the second bolt 26. One side of the positioning pin 23 extends into the interior of the adjacent slot 22, and one side of the second bolt 26 extends into the interior of the adjacent threaded hole 25.

[0031] When it is necessary to position the stator body 3 within the inner cavity of the outer shell 1, insert the movable ring 10 to be installed or replaced into the middle position between the threaded sleeve 9 and the limiting sleeve 13. Insert the positioning pin 23, which is fixed by the connecting plate 24, into the adjacent position slot 22. By rotating the second bolt 26 to extend into the adjacent position slot 22, the movable ring 10 can be fixed in the middle position between the threaded sleeve 9 and the limiting sleeve 13. Then, by extending one side of the hex wrench into the tightening groove 21, the threaded rod 8 is tightened to rotate it. Because the inner cavity of the storage groove 7 can resist and limit the threaded sleeve 9, the movable ring 10 can move horizontally under the cooperation of the threaded structure between the threaded sleeve 9 and the threaded rod 8. Due to the limiting effect of the embedded shaft 12 and the limiting sleeve 13... The mechanism improves the stability of the horizontal movement of the movable ring 10, thereby reducing the distance between the movable ring 10 and the limiting shell 14. This allows the positioning shafts 6 on both sides of the stator body 3 to extend into the first positioning hole 5 and the second positioning hole 11, thus positioning the stator body 3 within the inner cavity of the outer shell 1. When the stator body 3 needs to be disassembled, firstly, the first bolt 20 is rotated in the opposite direction to disengage the cover 19 from the inner cavity of the outer shell 1. Then, the threaded rod 8 is rotated in the opposite direction to disengage the positioning shaft 6 on one side of the stator body 3 from the inner cavity of the second positioning hole 11. Finally, the second bolt 26 is rotated to disengage it from the threaded hole 25 and the positioning pin 23 is disengaged from the slot 22. This allows the movable ring 10 to be removed from the outside of the outer shell 1, thus enabling the stator body 3 to be removed from the inside of the outer shell 1.

[0032] Example 2

[0033] Reference Figure 1-7 As shown, the positioning and installation mechanism also includes an anti-sway component, which includes a fixed plate 16 fixedly sleeved on the outer peripheral surface of the shaft core body 2 at the position of the inner cavity of the outer shell 1, a limiting shell 14 fixed on the inner wall of the outer shell 1 near the fixed plate 16, a groove 15 opened in the inner cavity of the limiting shell 14, a fixed plate 16 slidably inserted into the inner cavity of the groove 15, an annular groove 17 communicating with the two sides of the groove 15, and a limiting ring 18 inserted into the inner cavity of the annular groove 17. The side of the limiting ring 18 that is close to each other is fixed to the surface of the fixed plate 16, and the fixed plate 16 and the inner cavity of the groove 15 are slidably connected.

[0034] When the shaft core body 2 rotates, it can drive the fixed disk 16 to rotate. Under the action of the inner wall of the disk groove 15 against the fixed disk 16, the outer shell 1 can be prevented from shaking in the vertical direction. When the fixed disk 16 rotates, it can drive the limiting ring 18 to rotate in the inner cavity of the annular groove 17. Under the action of the inner wall of the annular groove 17 against the limiting ring 18, the shaft core body 2 can be prevented from shaking in the horizontal direction, thereby improving the stability of the shaft core body 2 when rotating.

Claims

1. A shaft and stator mounting structure for a fan, comprising an outer casing (1), a shaft body (2) rotatably connected through the middle of the outer casing (1), and a stator body (3) sleeved on the outside of the shaft body (2), characterized in that: It also includes a positioning and mounting mechanism that acts on the stator body (3); The positioning and installation mechanism includes a limiting shell (14) fixed in the inner cavity of the outer shell (1) at one side of the stator body (3), a movable ring (10) disposed on the other side of the inner cavity of the outer shell (1), a first positioning hole (5) equidistantly distributed around one side of the fixed ring (4), a second positioning hole (11) equidistantly distributed around one side of the movable ring (10), a cover (19) inserted in one side of the inner cavity of the outer shell (1), a first bolt (20) threadedly connected to both ends of the outer circumferential surface of the outer shell (1), and a translation component acting on the movable ring (10). The first bolt (20) and the two ends of the cover (19) are threadedly connected.

2. The shaft and stator mounting structure of a fan according to claim 1, characterized in that: The translation component includes a storage slot (7) opened at the upper and lower ends of the inner cavity surface of the outer shell (1), a threaded rod (8) rotatably connected to the inner cavity of one of the storage slots (7), a threaded sleeve (9) threadedly connected to the outer circumferential surface of the threaded rod (8), an embedded shaft (12) fixed to the inner cavity of the other storage slot (7), and a limiting sleeve (13) slidably sleeved on the outer circumferential surface of the embedded shaft (12).

3. The shaft and stator mounting structure of a fan according to claim 2, characterized in that: The translation component also includes a slot (22) on the surface of the threaded sleeve (9) and the limiting sleeve (13) of the connecting plate at the upper and lower ends of one side of the movable ring (10), a threaded hole (25) at the upper and lower ends of one side of the movable ring (10), a screwing groove at one side of the threaded rod (8) that is threaded through and connected to the surface of the connecting plate (24), and a positioning pin (23) fixed to one end of the second bolt (26) on the surface of the connecting plate (24).

4. The shaft and stator mounting structure of a fan according to claim 3, characterized in that: One side of the locating pin (23) extends into the interior of the adjacent position slot (22), and one side of the second bolt (26) extends into the interior of the adjacent position threaded hole (25).

5. The shaft and stator mounting structure of a fan according to claim 1, characterized in that: The positioning and installation mechanism also includes an anti-sway component, which includes a fixed plate (16) fixedly sleeved on the outer circumferential surface of the shaft core body (2) at the position of the inner cavity of the outer shell body (1) and a limiting shell (14) fixed on the inner wall of the outer shell body (1) near the fixed plate (16).

6. The shaft and stator mounting structure of a fan according to claim 5, characterized in that: The anti-sway assembly also includes a groove (15) formed in the inner cavity of the limiting shell (14), a fixed plate (16) slidably inserted into the inner cavity of the groove (15), an annular groove (17) connecting the two sides of the groove (15), and a limiting ring (18) inserted into the inner cavity of the annular groove (17).

7. The shaft and stator mounting structure of a fan according to claim 6, characterized in that: The limiting rings (18) are fixed to the surface of the fixed plate (16) on the side that is close to each other, and the fixed plate (16) is slidably connected to the inner cavity of the groove (15).

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