Silicon steel sheet positioning device

Abstract

The utility model provides a silicon steel sheet positioning device, which belongs to the technical field of flywheel energy storage, a positioning core is arranged on a lower stacking plate, a silicon steel sheet is further arranged on the lower stacking plate, the silicon steel sheet comprises a silicon steel inner hole, a positioning surface is arranged on the positioning core, the positioning surface is a cylindrical surface or a part of the cylindrical surface, and the silicon steel sheet is arranged in the silicon steel inner hole. The radius of the cylindrical surface is equal to that of the silicon steel inner hole, and the positioning surface is tightly attached to the silicon steel inner hole; the positioning core is arranged on the lower stacking plate, at the moment, the positioning core is positioned by the lower stacking plate, the placement accuracy of the positioning core is ensured, the positioning surface is arranged on the positioning core, equivalently, the positioning surface is positioned, and the positioning surface can be a cylindrical surface or a part of the cylindrical surface. And the silicon steel inner holes are positioned by using the cylindrical surfaces with the same radius as the silicon steel inner holes, so that the silicon steel inner holes of the silicon steel sheets on the lower stacking plate are tidier.

Description

Technical Field

[0001] The utility model relates to the technical field of flywheel energy storage, in particular to a silicon steel sheet positioning device. Background Art

[0002] With the development and application of magnetic levitation technology, magnetic bearings have been widely used in the machinery industry. During the assembly process of the radial bearing rotor and silicon steel sheets, magnetic bearings are typically assembled using a shrink fit method. This shrink fit method is based on the principle of thermal expansion and contraction. By increasing the temperature of the silicon steel sheets, the silicon steel sheets expand, increasing their inner diameter. The expanded silicon steel sheets are then placed on the radial bearing rotor at room temperature. When the temperature of the silicon steel sheets on the radial bearing rotor drops, they shrink, reducing their inner diameter and becoming firmly fixed to the radial bearing rotor. However, assemblers cannot directly contact the heated silicon steel sheets, making it difficult to position them. Without proper positioning, the silicon steel sheets will inevitably result in low assembly accuracy or damage to the silicon steel sheets or the rotor core during assembly.

[0003] Therefore, there is an urgent need for a device for positioning high-temperature silicon steel sheets. Utility Model Content

[0004] In view of this, the utility model proposes a silicon steel sheet positioning device with high positioning accuracy and low positioning difficulty for high-temperature silicon steel sheets.

[0005] The technical solution of the present utility model is implemented as follows: a silicon steel sheet positioning device includes a positioning core and a lower stacking plate, the positioning core is arranged on the lower stacking plate, the lower stacking plate is also provided with a silicon steel sheet, the silicon steel sheet includes a silicon steel inner hole, a positioning surface is provided on the positioning core, the positioning surface is a cylinder or a part of the cylinder, the radius of the cylinder is equal to the radius of the silicon steel inner hole, and the positioning surface is arranged close to the silicon steel inner hole.

[0006] Based on the above technical solution, preferably, the lower stacking plate includes a lower pressure plate and a lower pressure piece, the lower pressure plate is provided with a first mounting groove and a second mounting groove, one end of the positioning core is provided in the first mounting groove, and the lower pressure piece is provided in the second mounting groove.

[0007] On the basis of the above technical solution, preferably, it further comprises a positioning plate and a positioning cylinder, the positioning cylinder and the lower pressure plate are fixedly arranged on the positioning plate, and the silicon steel sheet is sleeved in the positioning cylinder.

[0008] On the basis of the above technical solution, preferably, the axis corresponding to the positioning surface coincides with the axis of the positioning cylinder.

[0009] On the basis of the above technical solution, preferably, a positioning plate is further included, and one end of the positioning core away from the positioning disc is connected to the positioning plate, and a lifting hook is provided on the positioning plate.

[0010] On the basis of the above technical solution, preferably, it further comprises a center positioning device, which is arranged between the positioning plate and the positioning disk.

[0011] On the basis of the above technical solution, preferably, the center positioning device includes a center sleeve and a positioning rod, one end of the center sleeve is arranged on the positioning disk, and one end of the positioning rod is fixedly arranged on the positioning plate, and the positioning rod is arranged in cooperation with the center sleeve.

[0012] On the basis of the above technical solution, preferably, the distance from any point on the surface of the positioning cylinder in contact with the silicon steel sheet to the axis of the central sleeve is equal.

[0013] On the basis of the above technical solution, preferably, the distance from any point on the positioning surface to the axis of the central sleeve is equal.

[0014] On the basis of the above technical solution, preferably, a first lifting hole is provided on the positioning core, a second lifting hole is provided on the positioning plate, and the bolt is fixedly arranged in the first lifting hole after passing through the positioning plate.

[0015] On the basis of the above technical solution, preferably, it further comprises an upper stacking plate, which is arranged at one end of the silicon steel sheet away from the positioning disk, and is arranged between the positioning core and the positioning cylinder.

[0016] On the basis of the above technical solution, preferably, the upper stacking plate includes an upper pressure plate and an upper pressure piece, the upper pressure plate is provided with a third mounting groove, one side of the upper pressure piece is provided in the third mounting groove, the side of the upper pressure plate away from the upper pressure piece is close to the positioning core, and the side of the upper pressure piece away from the third mounting groove is close to the positioning cylinder.

[0017] On the basis of the above technical solution, it is preferred that it also includes a rotation limit seat and a limit block, the rotation limit seat and the limit block are fixedly connected, and a positioning screw is provided between the rotation limit seat and the positioning cylinder; an anti-rotation groove is provided on the side of the upper pressure piece adjacent to the positioning cylinder, and the limit block is provided in the anti-rotation groove.

[0018] The silicon steel sheet positioning device of the utility model has the following beneficial effects compared with the prior art:

[0019] The positioning core is arranged on the lower stacking plate. At this time, the lower stacking plate positions the positioning core to ensure the placement accuracy of the positioning core. Because the positioning surface is arranged on the positioning core, it is equivalent to positioning the positioning surface. The positioning surface can be a cylindrical surface or a part of a cylindrical surface. The cylindrical surface with the same radius as the radius of the silicon steel inner hole is used to position the silicon steel inner hole, ensuring that the silicon steel inner hole of the silicon steel sheet on the lower stacking plate is more neat. When the rotor core is assembled into the silicon steel inner hole, the silicon steel sheet or the rotor core will not be damaged due to irregular placement of the silicon steel sheet, thereby improving the assembly efficiency and assembly success rate. The positioning of the silicon steel sheet through the positioning surface and the lower stacking plate avoids direct contact between the operator and the high-temperature silicon steel sheet, and the positioning of the silicon steel sheet is safer and more reliable.

[0020] The lower stacking plate includes a lower pressing plate and a lower pressing member, which is convenient for disassembling and assembling the lower stacking plate. The positioning core is positioned by the first mounting groove. The installation accuracy of the positioning core is higher, and the positioning accuracy of the positioning surface to the silicon steel sheet is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a three-dimensional diagram of a silicon steel sheet positioning device according to the present utility model;

[0023] Figure 2 This is a front view of a silicon steel sheet positioning device according to the present utility model;

[0024] Figure 3 This is a cross-sectional view of another silicon steel sheet positioning device and silicon steel sheet according to the present invention. DETAILED DESCRIPTION

[0025] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] like Figure 1-3As shown, a silicon steel sheet positioning device includes a positioning core 3 and a lower stacking plate 5, wherein the positioning core 3 is arranged on the lower stacking plate 5, and a silicon steel sheet 8 is further arranged on the lower stacking plate 5, and the silicon steel sheet 8 includes a silicon steel inner hole 81. A positioning surface 31 is provided on the positioning core 3, and the positioning surface 31 is a cylinder or a part of a cylinder. The radius of the cylinder is equal to the radius of the silicon steel inner hole 81, and the positioning surface 31 is arranged close to the silicon steel inner hole 81. The positioning core 3 is set on the lower stacking plate 5. At this time, the lower stacking plate 51 positions the positioning core 3 to ensure the placement accuracy of the positioning core 3. Because the positioning surface 31 is set on the positioning core 3, it is equivalent to positioning the positioning surface 31. The positioning surface 31 can be a cylinder or a part of a cylinder. This embodiment provides a specific method for the positioning surface 31 to be a complete cylinder. The cylinder with the same radius as the silicon steel inner hole 81 is used to position the silicon steel inner hole 81, ensuring that the silicon steel inner hole 81 of the silicon steel sheet 8 on the lower stacking plate 5 is more neat. When the rotor core is assembled into the silicon steel inner hole 81, the silicon steel sheet 8 or the rotor core will not be damaged due to the irregular placement of the silicon steel sheet 8, thereby improving the assembly efficiency and the success rate of assembly. The positioning of the silicon steel sheet 8 through the positioning surface 31 and the lower stacking plate 5 avoids direct contact between the operator and the high-temperature silicon steel sheet 8, and the positioning of the silicon steel sheet 8 is safer and more reliable.

[0027] The lower stacking plate 5 includes a lower pressing plate 51 and a lower pressing member 52. The lower pressing plate 51 is provided with a first mounting groove 511 and a second mounting groove 512. One end of the positioning core 3 is disposed in the first mounting groove 511, and the lower pressing member 52 is disposed in the second mounting groove 512. The lower stacking plate 5 includes the lower pressing plate 51 and the lower pressing member 52, which facilitates assembly and disassembly of the lower stacking plate 5. The positioning core 3 is positioned by means of the first mounting groove 511, which increases the installation accuracy of the positioning core 3 and improves the positioning accuracy of the positioning surface 31 with respect to the silicon steel sheet 8.

[0028] The device further comprises a positioning disc 1 and a positioning cylinder 2. The positioning cylinder 2 and the lower pressing plate 51 are fixedly mounted on the positioning disc 1, and the silicon steel sheet 8 is sleeved in the positioning cylinder 2. The positioning cylinder 2 and the lower pressing plate 51 are fixedly mounted on the positioning disc 1. The positioning disc 1 positions the lower pressing plate 51, which results in a higher positioning accuracy of the lower pressing plate 51 and an improved positioning accuracy of the silicon steel sheet 8.

[0029] The axis corresponding to the positioning surface 31 coincides with the axis of the positioning cylinder 2. The positioning surface 31 coincides with the axis of the positioning cylinder 2, and the positioning cylinder 2 better positions the periphery of the silicon steel sheet 8, further ensuring the positioning accuracy of the silicon steel sheet 8.

[0030] The positioning plate 71 is also included. The end of the positioning core 3 away from the positioning disk 1 is connected to the positioning plate 71. The positioning plate 71 is provided with a lifting hook 72. The positioning plate 71 is used to position the positioning core 3 and also to lift the positioning core 3. The positioning plate 7 is fixedly connected to the positioning core 3 by screws. The positioning core 3 is lifted to a position that matches the silicon steel sheet 8. After the silicon steel sheet 8 is positioned, the positioning core 3 is lifted out using the lifting hook 72 on the positioning plate 7.

[0031] The center positioning device 9 is also included, and is disposed between the positioning plate 71 and the positioning disk 1. The center positioning device 9 comprises a center sleeve 92 and a positioning rod 91. One end of the center sleeve 92 is disposed on the positioning disk 1, and one end of the positioning rod 91 is fixedly mounted on the positioning plate 71. The positioning rod 91 and the center sleeve 92 are arranged in a coordinated manner. The center sleeve 92 is fixedly mounted on the positioning disk 1, and the positioning rod 91 and the center sleeve 92 are sleeved together. When the center positioning device 9 is needed to position the positioning core 3, the positioning rod 91 can be simply inserted into the center sleeve 92.

[0032] The distance from any point on the surface of the positioning cylinder 2 in contact with the silicon steel sheet 8 to the axis of the center sleeve 92 is equal. At this time, the center sleeve 92 is on the axis of the positioning cylinder 2, and the positioning of the center sleeve 92 is more accurate.

[0033] The distance between any point of the positioning surface 31 and the axis of the central sleeve 92 is equal. The central sleeve 92 is on the axis of the cylinder surrounded by the positioning surface 31, and the positioning of the central sleeve 92 is more accurate.

[0034] The positioning core 3 is provided with a first lifting hole 31, and the positioning plate 71 is provided with a second lifting hole 711. The bolt is fixedly set in the first lifting hole 31 after passing through the second lifting hole 711. In order to place the positioning plate 71 in the set position during positioning and to be able to lift the positioning core 3 to a position that matches the silicon steel sheet 8, it is necessary to provide the first lifting hole 31 and the second lifting hole 711 that is provided to match the first lifting hole 31 on the positioning core 3. The bolt is fixedly set in the first lifting hole 31 after passing through the second lifting hole 711, thereby connecting the positioning core 3 and the positioning plate 71 into a whole.

[0035] The upper stacking plate 4 is also included. The upper stacking plate 4 is arranged at the end of the silicon steel sheet 8 away from the positioning plate 1 and is arranged between the positioning core 3 and the positioning cylinder 2. The upper stacking plate 4 applies downward pressure to the silicon steel sheet 8, thereby positioning the silicon steel sheet 8 and maintaining the pressure of the silicon steel sheet 8.

[0036] The upper stacking plate 4 includes an upper pressing plate 41 and an upper pressing member 42. The upper pressing plate 41 is provided with a third mounting groove 411. One side of the upper pressing member 42 is disposed within the third mounting groove 411. The side of the upper pressing plate 41 away from the upper pressing member 42 abuts against the positioning core 3, while the side of the upper pressing member 42 away from the third mounting groove 411 abuts against the positioning cylinder 2. The placement of one side of the upper pressing member 42 within the third mounting groove 411 improves the positioning accuracy of the upper pressing member 42, controls the distance between the positioning cylinder 2 and the positioning core 3, and prevents misalignment between the positioning cylinder 2 and the positioning core 3.

[0037] The upper member 42 further includes a rotation limiting seat 61 and a limiting block 62, which are fixedly connected to each other. A positioning screw is provided between the rotation limiting seat 61 and the positioning cylinder 2. An anti-rotation groove 421 is provided on one side of the upper pressing member 42 adjacent to the positioning cylinder 2, and the limiting block 62 is disposed within the anti-rotation groove 421. The limiting seat 61 and the limiting block 62 prevent the silicon steel sheet 8 from rotating, thereby further positioning the silicon steel sheet 8.

[0038] Support legs 11 are provided at the bottom of the positioning plate 1 for supporting the positioning plate 1 and the structural members and silicon steel sheets 8 provided on the positioning plate 1 .

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A silicon steel sheet positioning device, characterized in that: The invention comprises a positioning core (3) and a lower stacking plate (5), wherein the positioning core (3) is arranged on the lower stacking plate (5), and a silicon steel sheet (8) is further arranged on the lower stacking plate (5), wherein the silicon steel sheet (8) includes a silicon steel inner hole (81), and a positioning surface (31) is arranged on the positioning core (3), wherein the positioning surface (31) is a cylinder or a part of a cylinder, wherein the radius of the cylinder is equal to the radius of the silicon steel inner hole (81), and the positioning surface (31) is arranged in close contact with the silicon steel inner hole (81).

2. A silicon steel sheet positioning device according to claim 1, characterized in that: The lower stacking plate (5) comprises a lower pressing plate (51) and a lower pressing piece (52); the lower pressing plate (51) is provided with a first mounting groove (511) and a second mounting groove (512); one end of the positioning core (3) is provided in the first mounting groove (511); and the lower pressing piece (52) is provided in the second mounting groove (512).

3. A silicon steel sheet positioning device according to claim 2, characterized in that: It also includes a positioning disk (1) and a positioning cylinder (2), wherein the positioning cylinder (2) and the lower pressure plate (51) are fixedly arranged on the positioning disk (1), and the silicon steel sheet (8) is sleeved in the positioning cylinder (2).

4. A silicon steel sheet positioning device according to claim 3, characterized in that: The axis corresponding to the positioning surface (31) coincides with the axis of the positioning cylinder (2).

5. A silicon steel sheet positioning device according to claim 3, characterized in that: It also includes a positioning plate (71), one end of the positioning core (3) away from the positioning disk (1) is connected to the positioning plate (71), and a lifting hook (72) is provided on the positioning plate (71).

6. A silicon steel sheet positioning device according to claim 5, characterized in that: It also includes a center positioning device (9), which is arranged between the positioning plate (71) and the positioning disk (1).

7. A silicon steel sheet positioning device according to claim 6, characterized in that: The center positioning device (9) comprises a center sleeve (92) and a positioning rod (91), one end of the center sleeve (92) is arranged on the positioning disk (1), and one end of the positioning rod (91) is fixedly arranged on the positioning plate (71), and the positioning rod (91) and the center sleeve (92) are arranged in cooperation.

8. A silicon steel sheet positioning device according to claim 7, characterized in that: The distance between any point on the surface where the positioning cylinder (2) contacts the silicon steel sheet (8) and the axis of the central sleeve (92) is equal.

9. A silicon steel sheet positioning device according to claim 7, characterized in that: The distance between any point on the positioning surface (31) and the axis of the central sleeve (92) is equal.

10. The silicon steel sheet positioning device according to claim 5, characterized in that: A first hoisting hole (311) is provided on the positioning core (3), a second hoisting hole (711) is provided on the positioning plate (71), and bolts are provided in the second hoisting hole (711) and the first hoisting hole (311).

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