Flywheel sheet for flywheel energy storage device and flywheel

Abstract

The utility model discloses a flywheel sheet for a flywheel energy storage device and a flywheel, which are characterized in that an overlapping part in the middle of the flywheel sheet is of a rectangular structure, and wing parts are arranged at two opposite ends of one group of the overlapping part, so that the flywheel sheet can not occupy a large space during transportation, and can be used for storing energy; in addition, after the multiple flywheel pieces are stacked to form the flywheel, the requirement for forming a large-diameter flywheel can be met, when the flywheel pieces are stacked to form the flywheel, the upper flywheel piece and the lower flywheel piece which are adjacent to each other are arranged in a crossed mode, the stacked portions of the upper flywheel piece and the lower flywheel piece which are adjacent to each other make contact with each other, and due to the arrangement of the wing portions, the shape of the formed flywheel can be close to or round.

Description

Technical Field

[0001] The utility model belongs to the field of flywheels of flywheel energy storage devices, and particularly relates to a flywheel slice and a flywheel for a flywheel energy storage device. Background Art

[0002] The flywheels in existing flywheel energy storage devices are generally integral or multi-layer circular slice type in air-cushion flywheels. In this way, when transported by road, the maximum diameter of the flywheel is the width of the transport vehicle, so the diameter of large flywheels is limited. Therefore, when the vehicle width is determined, the diameter of the transported flywheel is restricted. Thus, there is currently a lack of a flywheel solution that can both meet the requirement of a large diameter and adapt to vehicle transportation. Content of the Utility Model

[0003] (1) Technical problem to be solved: Provide a flywheel composed of stacked flywheel slices that can both meet the requirement of a large diameter and can be transported by conventional transport vehicles without the need to match larger transport vehicles.

[0004] (2) The technical solution adopted by the utility model is as follows:

[0005] A flywheel slice for a flywheel energy storage device, the middle part of the flywheel slice is a stacking part, the stacking part is of a rectangular structure, wing parts are arranged at both ends of one group of opposite sides of the stacking part, and a shaft hole is arranged in the middle of the stacking part.

[0006] A flywheel for a flywheel energy storage device, including the flywheel slice described above, and a plurality of flywheel slices are stacked to form the flywheel. The adjacent upper and lower flywheel slices are arranged in a cross-cross manner, and the stacking parts of the adjacent upper and lower flywheel slices are in contact with each other.

[0007] Furthermore, the edge of the wing part is of an arc structure.

[0008] Furthermore, the top surface and the bottom surface of the wing part both protrude from the stacking part, and the protruding thickness is half of the thickness of the stacking part.

[0009] Furthermore, one of the upper and lower surfaces of the wing part protrudes from the stacking part, and the protruding thickness is half of the thickness of the stacking part. The protruding surfaces of the wing parts of two flywheel slices are arranged opposite to each other to form a group.

[0010] Furthermore, the bottom surface of the wing part of the top-layer flywheel slice protrudes from the stacking part, and the protruding thickness is half of the thickness of the stacking part. The top surface of the wing part of the bottom-layer flywheel slice protrudes from the stacking part, and the protruding thickness is half of the thickness of the stacking part. For the wing parts of the flywheel slices between the top layer and the bottom layer, both their top surfaces and bottom surfaces protrude from the stacking part, and the protruding thickness is half of the thickness of the stacking part.

[0011] A further technical solution lies in that the overlapping part is square, and a first flow guide cover is sleeved outside the flywheel.

[0012] A further technical solution lies in that the edge of the wing part is a quarter arc, and the circle corresponding to the quarter arc is the circumscribed circle of the overlapping part.

[0013] A further technical solution lies in that the overlapping part is rectangular, a flexible sleeve is sleeved outside the flywheel, and a second flow guide cover is sleeved outside the flexible sleeve.

[0014] (3) Due to the adoption of the above technical solutions, the beneficial effects of the present utility model are as follows: By setting the overlapping part in the middle of the flywheel slice as a rectangular structure, and wing parts are arranged at both ends of one group of opposite sides of the overlapping part, such a flywheel slice can not occupy a large space during transportation, and after multiple flywheel slices are overlapped to form a flywheel, it can also meet the requirements for forming a large-diameter flywheel. When the flywheel slices are overlapped to form a flywheel, the adjacent upper and lower flywheel slices are arranged in a cross-cross manner, and the overlapping parts of the adjacent upper and lower flywheel slices are in contact with each other. The setting of the wing parts can make the shape of the formed flywheel close to or become circular.

[0015] The present utility model can achieve within the vehicle width range, the flywheel diameter is increased to more than times the vehicle width. For example, when the vehicle transportation width is 2.5 meters, only a flywheel with a diameter of 2.5 meters can be transported, while adopting the solution of the present utility model, the minimum flywheel diameter can reach 2.5 meters * 3.5 meters. This result is when the overlapping part is square, the edge of the wing part is a quarter arc, and the circle corresponding to the quarter arc is the circumscribed circle of the overlapping part. Among them, 2.5 meters is the side length of the overlapping part, and 3.5 meters is the diameter of the circumscribed circle, which is equivalent to the diameter of the flywheel, and the diameter increases by 1 meter! In this way, an existing transport vehicle can be used to transport a flywheel with a larger diameter. Description of the Drawings

[0016] Figure 1 It is a schematic structural view of the flywheel slice of the present utility model;

[0017] Figure 2 It is a schematic structural view after two flywheel slices of the present utility model are overlapped, and the overlapping part is square and the arc structure of the edge of the wing part is a quarter arc;

[0018] Figure 3 It is a schematic structural view in which the top surface and the bottom surface of the wing part of the flywheel slice of the present utility model both protrude from the overlapping part;

[0019] Figure 4 It is a schematic structural view in which the wing part protrudes from the overlapping part below, and the protruding thickness is half of the thickness of the overlapping part;

[0020] Figure 5 It is a schematic structural diagram of the flat flywheel slice described in the present utility model.

[0021] Figure 6 It is a schematic cross-sectional structural diagram of a flywheel formed by stacking multiple flywheel slices described in the present utility model;

[0022] Figure 7 It is a schematic structural diagram of the flywheel described in the present utility model;

[0023] Figure 8 It is a schematic structural diagram of a flywheel slice with a rectangular stacking part described in the present utility model;

[0024] Figure 9 It is Figure 8 A schematic structural diagram of the stacked flywheel slices shown;

[0025] Figure 10 It is Figure 8 A schematic structural diagram in which both the top surface and the bottom surface of the wing part of the flywheel slice shown protrude from the stacking part;

[0026] Figure 11 It is a schematic installation structural diagram of the flexible sleeve and the second flow guide cover described in the present utility model; Detailed implementation manners

[0027] In order to make the objectives, technical solutions and advantages of the present utility model more clear and understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0028] As Figures 1-11 shown.

[0029] Embodiment 1: Referring to Figures 1-7 , a flywheel slice for a flywheel energy storage device, a stacking part 2 is provided in the middle of the flywheel slice 1, the stacking part 2 is of a rectangular structure, wing parts 3 are provided at both ends of one group of opposite sides of the stacking part 2, and a shaft hole 4 is provided in the middle of the stacking part 2.

[0030] A flywheel for a flywheel energy storage device includes the flywheel slice 1 described above. Multiple flywheel slices 1 are stacked to form a flywheel 5. The adjacent upper and lower flywheel slices 1 are arranged in a cross-cross manner, and the stacking parts 2 of the adjacent upper and lower flywheel slices 1 are in contact with each other. The edge of the wing part 3 is of an arc structure. Both the top surface and the bottom surface of the wing part 3 protrude from the stacking part 2, and the protruding thickness is half of the thickness of the stacking part 2. The stacking part 2 is square, and a first flow guide cover 6 is sleeved outside the flywheel 5. The arc structure at the edge of the wing part 3 is a quarter circle arc, and the circle corresponding to the quarter circle arc is the circumscribed circle of the stacking part 2.

[0031] Referring to Figure 4 and Figure 6, the bottom surface of the wing part 3 of the flywheel piece 1 located at the top layer protrudes from the overlapping part 2, and the protruding thickness is half of the thickness of the overlapping part 2. The top surface of the wing part 3 of the flywheel piece 1 located at the bottom layer protrudes from the overlapping part 2, and the protruding thickness is half of the thickness of the overlapping part 2. For the wing part 3 of the flywheel piece 1 located between the top layer and the bottom layer, both its top surface and bottom surface protrude from the overlapping part 2, and the protruding thickness is half of the thickness of the overlapping part 2.

[0032] During use, when transporting the flywheel 5, first load the flywheel pieces 1 onto the vehicle and transport them to the destination, and then stack multiple flywheel pieces 1 to form the flywheel 5. When the flywheel pieces 1 are stacked, since the shaft hole 4 is provided in the middle of the overlapping part 2, the flywheel pieces 1 can be sleeved on the shaft. The flywheel pieces 1 and the shaft can be connected by splines. Positioning holes 9 are provided on the flywheel pieces 1. After all the flywheel pieces 1 are stacked and installed, pass the positioning rod 11 through the positioning holes 9 on all the flywheel pieces 1 for positioning to ensure the reliability of the installation of the flywheel pieces 1. Since the overlapping part 2 is square and the arc structure at the edge of the wing part 3 is a quarter circle, and the circle corresponding to the quarter circle is the circumscribed circle of the overlapping part 2, the upper and lower layers of flywheel pieces 1 can be joined to form a complete circle, and the final formed flywheel 5 also has a complete circular shape.

[0033] Reference Figure 5 and Figure 6 Flat flywheel pieces 10 can also be installed on both the upper and lower sides of the flywheel 5. The flat flywheel pieces 10 can be made of ultra-high-strength steel plates. Shaft holes and positioning holes 9 are provided on the flat flywheel pieces 10. In this way, after the positioning rod 11 passes through, it can also increase the strength of the flywheel to a certain extent and improve safety.

[0034] Embodiment 2: Reference Figure 4 , one of the upper and lower surfaces of the wing part 3 protrudes from the overlapping part 2, and the protruding thickness is half of the thickness of the overlapping part 2. The protruding surfaces of the wing parts 3 of two flywheel pieces 1 are arranged opposite to each other to form a group, and multiple groups are stacked to form a flywheel. In this way, a complete flywheel can also be formed.

[0035] Embodiment 3: Reference Figures 8-11 , the overlapping part 2 is rectangular. A flexible sleeve 8 is sleeved outside the flywheel 5, and a second flow guide cover 7 is sleeved outside the flexible sleeve 8. Since the overlapping part 2 is rectangular, it cannot be joined into a perfect circle, but there are gaps at the four corners. In addition, the circumference of the flywheel 5 is wound with materials such as carbon fiber to form the flexible sleeve 8. The flexible sleeve 8 can increase the strength of the flywheel 5 and improve safety. The flexible sleeve 8 can also be made detachable.

[0036] The above are only the preferred embodiments of the present invention.

Claims

1. A flywheel slice for a flywheel energy storage device, characterized in that, The middle part of the flywheel plate (1) is a superposition part (2). The superposition part (2) is of a rectangular structure. Wings (3) are arranged at both ends of one group of opposite sides of the superposition part (2), and a shaft hole (4) is arranged in the middle of the superposition part (2).

2. A flywheel for a flywheel energy storage device, characterized in that, It includes the flywheel plate (1) described in claim 1. Multiple flywheel plates (1) are superposed to form a flywheel (5). The adjacent upper and lower flywheel plates (1) are arranged in a crosswise manner, and the superposition parts (2) of the adjacent upper and lower flywheel plates (1) are in contact with each other.

3. The flywheel for a flywheel energy storage device according to claim 2, wherein, The edge of the wing part (3) is of an arc structure.

4. A flywheel for a flywheel energy storage device according to claim 3, characterized in that, The top surface and the bottom surface of the wing part (3) protrude from the superposition part (2), and the protruding thickness is half of the thickness of the superposition part (2).

5. The flywheel for a flywheel energy storage device according to claim 3, wherein, One of the upper and lower surfaces of the wing part (3) protrudes from the superposition part (2), and the protruding thickness is half of the thickness of the superposition part (2). The protruding surfaces of the wing parts (3) of the two flywheel plates (1) are arranged opposite to each other to form a group.

6. The flywheel for a flywheel energy storage device according to claim 3, characterized in that, The bottom surface of the wing part (3) of the flywheel plate (1) located at the top layer protrudes from the superposition part (2), and the protruding thickness is half of the thickness of the superposition part (2). The top surface of the wing part (3) of the flywheel plate (1) located at the bottom layer protrudes from the superposition part (2), and the protruding thickness is half of the thickness of the superposition part (2). For the wing parts (3) of the flywheel plates (1) located between the top layer and the bottom layer, both the top surface and the bottom surface protrude from the superposition part (2), and the protruding thickness is half of the thickness of the superposition part (2).

7. A flywheel for a flywheel energy storage device according to any one of claims 4-6, characterized in that, The superposition part (2) is square, and a first flow guide cover (6) is sleeved outside the flywheel (5).

8. A flywheel for a flywheel energy storage device according to claim 7, wherein, The edge of the wing part (3) is a quarter circle arc, and the circle corresponding to the quarter circle arc is the circumcircle of the superposition part (2).

9. A flywheel for a flywheel energy storage device according to any one of claims 4-6, characterized in that, The superposition part (2) is rectangular, and a flexible sleeve (8) is sleeved outside the flywheel (5), and a second flow guide cover (7) is sleeved outside the flexible sleeve (8).

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