Stator punching sheet of wind driven generator

Abstract

The utility model discloses a wind driven generator stator punching sheet comprising a pedestal and an anti-drop device, the outer wall of the pedestal is provided with scale marks, the pedestal is provided with a chute, the chute is internally provided with a screw rod, one end of the screw rod penetrating through the inner wall of the chute is provided with a handle, the outside of the screw rod is provided with a movable block, and the movable block is provided with an anti-drop device. And one end of the movable block is provided with an arc surface. According to the utility model, the laminated punching sheets pass through the supporting columns and are placed on the bases, the handle is rotated to drive the screw rod to rotate, the movable block moves along the chute, the cambered surface abuts against the inner walls of the punching sheets and then the handle is stopped rotating, and the punching sheets are located in the middle of the four bases as far as possible by observing the positions of the punching sheets and the scale marks. The height of the connecting rod is properly adjusted according to the height of the stacked punching sheets, the limiting block is rotated to the outer side, the threaded rod is properly adjusted to be tightly attached to the punching sheets and fixed through the nut, the anti-falling effect is achieved, the internal movable block achieves the limiting effect, and the situation of losing balance in the lifting process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of stator punching sheets, in particular to stator punching sheets of wind turbine generators. Background Art

[0002] As a clean energy, wind turbines have been widely used in power generation. However, existing wind turbines generally have the defect of low efficiency and cannot achieve the purpose of high efficiency. The stator core of the generator is composed of a single piece of stator punchings, and the coil is wound on the motor stator. Different types of generators have different types of uniform-sized stator punchings. The stator punchings are key components in the stator core of the generator. The stator motor punchings are key components of the motor. Its material, inner circle size, outer circle size and slot size directly affect the energy consumption, working efficiency, noise and service life of the motor.

[0003] For example, a Chinese patent discloses a transfer tooling for processing stator punching sheets of a direct-drive wind turbine [application number: 20222036851.8], which includes a base, a movable roller, a slide, a limit block, a support sleeve, a support column, a storage box, a slide plate, a lifting ring and a safety rope. The base and the storage box are both in a cross-shaped structure, and movable rollers are installed at the four corners of the lower side of the base. In this solution, on the one hand, it adopts an internal limit method, which has good applicability and meets the loading requirements of stator punching sheets with unslotted outer sides; on the other hand, its loading height can be adjusted according to demand to better meet the transfer loading requirements. In addition, the overall structure of the device is simple, which is conducive to mass production and manufacturing, and there are two transfer methods: ground pushing and lifting.

[0004] However, in this solution, the support sleeve and the support column are moved in the slide slot by means of a limit block, and the support sleeve is in an active state relative to the slide slot. The punching piece is inserted into the base and lifted by the lifting ring on the top. If there is a tilt during this period, the punching piece will move to one side and directly act on the support sleeve and the support column, causing the four support sleeves and the support column to be offset on the slide slot, and the punching piece is not effectively limited and fixed, which may cause the punching piece to lose balance during the lifting and transportation process. Utility Model Content

[0005] The utility model aims to provide a wind turbine stator punching sheet to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wind turbine stator punching sheet, comprising a base and an anti-slip device, the outer wall of the base is provided with a scale line, the base is provided with a slide groove, a screw rod is installed in the slide groove, one end of the screw rod passing through the inner wall of the slide groove is provided with a handle, a movable block is installed outside the screw rod, one end of the movable block is set as an arc surface, a threaded hole is provided above the movable block, a connecting block is installed at the bottom of the movable block, a supporting sleeve is installed at the bottom of the anti-slip device, a connecting rod is inserted in the supporting sleeve, a pipe sleeve is installed at the connection between the supporting sleeve and the connecting rod, a limiting block is installed outside the connecting rod, a groove is provided on the limiting block, a threaded rod is inserted in the groove, a nut is installed in meshing relationship with the threaded rod, a supporting column is installed in the middle of the base, and a hook is installed on the top of the support column.

[0007] Preferably, the base is cross-shaped, and the scale lines are located at the edges of each end of the base.

[0008] Preferably, the screw rod is rotatably mounted inside the slide groove, and the screw rod passes through the connecting block.

[0009] Preferably, the movable block is of a bending type, and the size of the movable block is larger than the slide groove, and the arc surface faces outward.

[0010] Preferably, the connection block and the slide groove are slidably connected, and the connection block is provided with a through hole at the position where the screw rod passes through, and a thread meshing with the screw rod is provided on the inner wall of the through hole.

[0011] Preferably, the bottom of the support sleeve is provided with threads, the bottom of the support sleeve is inserted into the threaded hole, and the support sleeve and the connecting rod are fixed by a pipe sleeve.

[0012] Preferably, one end of the limit block is inserted into the connecting rod, and the limit block and the connecting rod are rotationally connected.

[0013] Preferably, the nuts are symmetrically arranged on the threaded rod, adjacent nuts are located on both sides of the groove, and the size of the nuts is larger than the groove.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] In the utility model, the stacked punching pieces are placed on the base through the supporting columns, and the handle is properly turned to drive the screw rod to rotate, so that the movable block moves outward along the slide groove. When the arc surface of the movable block abuts against the inner wall of the punching piece, the handle is stopped from being rotated, and the positions of the punching piece and the scale lines are observed, so that the punching piece is located in the middle of the four seats as much as possible. According to the height of the stacked punching pieces, the height of the connecting rod is properly adjusted to rotate the limit block to its outside, and the threaded rod is properly adjusted to make it close to the punching piece and fixed with a nut to play an anti-slip effect. The internal movable block plays a limiting role to avoid loss of balance during the lifting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the base in the utility model;

[0018] Figure 3 It is a structural schematic diagram of the anti-slip device in the utility model;

[0019] Figure 4 It is a structural schematic diagram of the movable block in the utility model.

[0020] In the figure: 1. base; 11. scale line; 2. anti-slip device; 21. support sleeve; 22. connecting rod; 23. pipe sleeve; 3. slide groove; 31. screw rod; 32. handle; 4. movable block; 41. arc surface; 42. threaded hole; 43. connecting block; 5. limit block; 51. groove; 6. threaded rod; 61. nut; 7. support column; 71. hook. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4The utility model provides a technical solution: a wind turbine stator punching sheet, comprising a base 1 and an anti-slip device 2, wherein the outer wall of the base 1 is provided with a scale mark 11, the base 1 is provided with a slide groove 3, a screw rod 31 is installed in the slide groove 3, one end of the screw rod 31 passing through the inner wall of the slide groove 3 is provided with a handle 32, a movable block 4 is installed outside the screw rod 31, one end of the movable block 4 is set as an arc surface 41, a threaded hole 42 is provided above the movable block 4, and the bottom of the movable block 4 is provided with a screw hole 42. A connecting block 43 is installed at the bottom, a supporting sleeve 21 is installed at the bottom of the anti-slip device 2, a connecting rod 22 is inserted in the supporting sleeve 21, a pipe sleeve 23 is installed at the connection between the supporting sleeve 21 and the connecting rod 22, a limiting block 5 is installed outside the connecting rod 22, a groove 51 is opened on the limiting block 5, a threaded rod 6 is inserted in the groove 51, a nut 61 is engaged with the threaded rod 6, a supporting column 7 is installed in the middle of the base 1, and a hook 71 is installed on the top of the supporting column 7.

[0023] The base 1 is cross-shaped, and the scale line 11 is located at the edge of each end of the base 1. There are four slide grooves 3 and they are symmetrically distributed. At the same time, an anti-slip device 2 is installed on the top of each movable block 4. Figure 1 Only one anti-falling device 2 is shown, and the other three are not shown.

[0024] The screw rod 31 is rotatably mounted inside the slide slot 3 , and the screw rod 31 passes through the connecting block 43 .

[0025] The movable block 4 is of a bending type, and the size of the movable block 4 is larger than the slide slot 3, and the arc surface 41 faces outward.

[0026] The connecting block 43 is slidably connected to the slide groove 3 , and a through hole is formed in the connecting block 43 at the position where the screw rod 31 passes through, and a thread meshing with the screw rod 31 is formed on the inner wall of the through hole.

[0027] The bottom of the support sleeve 21 is provided with a thread, the bottom of the support sleeve 21 is inserted into the threaded hole 42, and the support sleeve 21 and the connecting rod 22 are fixed by a pipe sleeve 23. The design of the support sleeve 21, the connecting rod 22 and the pipe sleeve 23 can refer to the design of the floor fan, and the height adjustment can be achieved through the same design.

[0028] One end of the limit block 5 is inserted into the connecting rod 22 , and the limit block 5 and the connecting rod 22 are rotatably connected.

[0029] The nuts 61 are symmetrically arranged on the threaded rod 6, and adjacent nuts 61 are located on both sides of the groove 51. At the same time, the size of the nuts 61 is larger than the groove 51. By rotating the upper nut 61, the threaded rod 6 can be freely fixed on the groove 51 by interacting with the lower nut 61.

[0030] Working principle: After the stacked punches are placed on the base 1 through the support column 7, the connecting rod 22 is appropriately moved along the support sleeve 21 according to the height of the punch, and the sleeve 23 is used to fix the height of the connecting rod 22. The limit block 5 is rotated to face inward, and then the handle 32 is appropriately rotated to drive the internal screw rod 31 to rotate. Then the movable block 4 passes through the bottom connecting block 43 along the direction of the screw rod 31 and slides outward in the slide groove 3 until the arc surface 41 of the movable block 4 is against the inner wall of the punch, and the scale is observed according to the punch. The relative position of the punch is adjusted by rotating the handle 32 appropriately, so that the punch is located in the middle of the base 1 as much as possible, and then the limit block 5 is rotated to face outward, the threaded rod 6 is inserted into the groove 51, and the nut 61 is installed on the top. After the threaded rod 6 slides along the groove 51 to the position fitting the punch, the nut 61 on the upper side is tightened, and the nut 61 on the lower side acts against the limit block 5 to fix the threaded rod 6 here. The limit block 5 and the threaded rod 6 at the top play a role in fixing and limiting the punch, and then the punch is lifted and transferred by the hook 71.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wind turbine stator punching sheet, comprising a base (1) and an anti-slip device (2), characterized in that: The outer wall of the base (1) is provided with a scale line (11), the base (1) is provided with a slide groove (3), a screw rod (31) is installed in the slide groove (3), one end of the screw rod (31) passing through the inner wall of the slide groove (3) is provided with a handle (32), a movable block (4) is installed outside the screw rod (31), one end of the movable block (4) is set as an arc surface (41), a threaded hole (42) is provided above the movable block (4), a connecting block (43) is installed at the bottom of the movable block (4), and the anti-slip device (2) is installed at the bottom A support sleeve (21) is provided, a connecting rod (22) is inserted into the support sleeve (21), a pipe sleeve (23) is installed at the connection between the support sleeve (21) and the connecting rod (22), a limit block (5) is installed outside the connecting rod (22), a groove (51) is provided on the limit block (5), a threaded rod (6) is inserted into the groove (51), a nut (61) is engaged and installed on the threaded rod (6), a support column (7) is installed in the middle of the base (1), and a hook (71) is installed on the top of the support column (7).

2. The wind turbine stator punching sheet according to claim 1, characterized in that: The base (1) is cross-shaped, and the scale lines (11) are located at the edges of each end of the base (1).

3. The wind turbine stator punching sheet according to claim 2, characterized in that: The screw rod (31) is rotatably mounted inside the slide groove (3), and the screw rod (31) passes through the connecting block (43).

4. The wind turbine stator punching sheet according to claim 3, characterized in that: The movable block (4) is of a bending type, and the size of the movable block (4) is larger than the sliding groove (3), and the arc surface (41) faces outwards.

5. The wind turbine stator punching sheet according to claim 4, characterized in that: The connecting block (43) and the slide groove (3) are slidably connected, and the connecting block (43) is provided with a through hole at the position where the screw rod (31) passes through, and a thread meshing with the screw rod (31) is provided on the inner wall of the through hole.

6. The wind turbine stator punching sheet according to claim 5, characterized in that: The bottom of the support sleeve (21) is provided with a thread, the bottom of the support sleeve (21) is inserted into the threaded hole (42), and the support sleeve (21) and the connecting rod (22) are fixed by a pipe sleeve (23).

7. The wind turbine stator punching sheet according to claim 6, characterized in that: One end of the limit block (5) is inserted into the connecting rod (22), and the limit block (5) and the connecting rod (22) are rotatably connected.

8. The wind turbine stator punching sheet according to claim 7, characterized in that: The nuts (61) are symmetrically arranged on the threaded rod (6), and adjacent nuts (61) are located on both sides of the groove (51). Meanwhile, the size of the nuts (61) is larger than that of the groove (51).

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