Novel rotor punching sheet

Abstract

The utility model relates to the technical field of motors, in particular to a novel rotor punching sheet, which comprises a rotor punching sheet body and a shaft hole arranged at the central position of the rotor punching sheet body, a circle of convex teeth are annularly arranged on the outer side of the rotor punching sheet body, and the two sides of the joint of the convex teeth and the rotor punching sheet body are concave inwards to form inner grooves; the rotor punching sheet body is provided with an initial mark position; an initial positioning groove and a plurality of mounting positioning grooves are uniformly formed in the edge of the shaft hole, and the initial positioning groove corresponds to the initial mark position in position; according to the novel rotor punching sheet disclosed by the utility model, the rotating shaft can be better clamped with the positioning grooves to realize driving, and the installation of the rotating shaft can be limited, so that the installation of the rotating shaft is facilitated, and the installation of the rotating shaft is facilitated. In addition, different rotating shafts can be matched for use according to needs.

Description

Technical Field

[0001] This utility model relates to the field of electric motor technology, and more specifically, to a novel rotor lamination. Background Technology

[0002] In the field of electric motor technology, an electric motor mainly consists of two parts: a rotor and a stator. The rotor is the rotating part of the electric motor, and these two parts are used to realize the conversion between electrical energy and mechanical energy.

[0003] The rotor is made of multiple rotor laminations stacked and welded together. Currently, motor rotor laminations on the market are fixed by welding the outer sides after production. However, because the welding positions are not reserved during production, the welding effect of the stacked and welded rotor laminations on the market is relatively poor. In addition, with the continuous development of applications, multiple bosses are set on the shaft to better engage with the rotor laminations. However, this also means that traditional rotor laminations cannot be used with such bosses. Therefore, a rotor lamination that can be used with different shafts is currently necessary.

[0004] Therefore, it is necessary to propose a new type of rotor lamination to solve the above problems. Utility Model Content

[0005] To overcome at least one of the defects (deficiencies) of the prior art, this utility model provides a novel rotor lamination.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows: a novel rotor lamination, comprising a rotor lamination body and a shaft hole disposed at the center of the rotor lamination body;

[0007] The outer ring of the rotor lamination body is provided with a ring of protruding teeth, and the two sides of the connection between the protruding teeth and the rotor lamination body are concave to form an inner groove.

[0008] An initial mark is provided on the rotor lamination body;

[0009] The edge of the shaft hole is uniformly provided with a starting positioning groove and multiple installation positioning grooves, and the starting positioning groove corresponds to the position of the initial mark.

[0010] The initial positioning slot and multiple mounting positioning slots are all provided with positioning grooves. The number of positioning grooves increases sequentially in a clockwise direction along the initial positioning slot. Since the two sides of the connection between the convex teeth and the rotor lamination body are concave to form an inner groove, when multiple rotor lamination bodies are pressed together, welding can be carried out in the inner groove on the outside of the rotor lamination body. At this time, the welded material will fill the inner groove. Since the welded material is welded into the inner groove and fills the inner groove, it can better fix the multi-layer rotor lamination body. Since the number of positioning grooves increases sequentially in a clockwise direction along the initial positioning slot, compared with the prior art, the shaft can better engage with the positioning groove to achieve driving, and can also limit the installation of the shaft, thereby determining the direction of shaft insertion. Furthermore, it can be matched with different shafts according to the needs of use.

[0011] Furthermore, the starting positioning groove includes a starting positioning groove body, a starting left positioning piece, and a starting right positioning piece;

[0012] The starting left positioning piece and the starting right positioning piece are respectively disposed on both sides of the starting positioning groove;

[0013] The positioning groove is connected to the starting right positioning piece. By connecting the positioning groove to the starting right positioning piece, the boss on the rotating shaft can be better engaged in the positioning groove during shaft installation.

[0014] Furthermore, each of the aforementioned mounting and positioning slots includes a positioning slot body, a left positioning piece, and a right positioning piece;

[0015] The left positioning piece and the right positioning piece are respectively disposed on both sides of the positioning groove;

[0016] The positioning groove is connected to the left positioning piece. Since there is only one positioning groove in the starting positioning groove, the positioning groove is set on the left positioning piece in the installation positioning groove opposite to the starting positioning groove. In this way, the positioning groove on the starting positioning groove and the positioning groove on the installation positioning groove will be on the same straight line or in a position near the same straight line. This setting can be matched with more rotating shafts.

[0017] Furthermore, the included angle between adjacent starting positioning slots and installation positioning slots, or between adjacent installation positioning slots, is 90 degrees. Since the included angle between adjacent starting positioning slots and installation positioning slots, or between adjacent installation positioning slots, is 90 degrees, it facilitates the installation of the rotating shaft.

[0018] Furthermore, the rotor lamination body has several equally spaced connecting holes on the outer circumference corresponding to the shaft hole. By setting the connecting holes, the weight of the rotor lamination body can be effectively reduced, thereby improving the operating efficiency.

[0019] Furthermore, the connecting hole is trapezoidal. In practical applications, the connecting hole can also be in other shapes, all of which are within the protection scope of this utility model.

[0020] Furthermore, perforations are provided between adjacent connecting holes. These perforations allow for engagement with the insulating plate connected to the rotor lamination body, thereby facilitating the installation and mating of the insulating plate and the rotor lamination body.

[0021] Furthermore, there are two punches, and the diameter of the punches gradually increases from the shaft hole outwards. In practical applications, the number of punches can be set as needed, all of which are within the protection scope of this utility model. Since there are two punches, the insulating plate can be better engaged and connected with the rotor lamination body.

[0022] Compared with the prior art, the beneficial effects of this utility model's technical solution are:

[0023] The novel rotor lamination disclosed in this utility model has an inner groove formed on both sides of the connection between the convex teeth and the rotor lamination body. Therefore, when multiple rotor lamination bodies are pressed together, welding can be performed in the inner groove on the outer side of the rotor lamination body. At this time, the welded material will fill the inner groove. Since the welded material is welded into the inner groove and fills the inner groove, it can better fix the multi-layer rotor lamination body. Since the number of positioning grooves increases sequentially in the clockwise direction of the starting positioning groove, compared with the prior art, the rotating shaft can better engage with the positioning groove to achieve driving, and can also limit the installation of the rotating shaft, thereby determining the direction of the rotating shaft insertion. Furthermore, it can be matched with different rotating shafts according to the needs of use. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the rotor lamination body in this utility model.

[0025] Figure 2 This is a top view of the rotor lamination body in this utility model.

[0026] Figure 3 This is an enlarged view of the structure of the inner groove in this utility model.

[0027] Figure 4 This is a schematic diagram of the rotor core made of multiple rotor laminations in this utility model.

[0028] In the figure, 1 is the rotor lamination body, 2 is the shaft hole, 3 is the protruding tooth, 4 is the inner groove, 5 is the initial mark position, 6 is the starting positioning groove, 7 is the installation positioning groove, 8 is the positioning groove, 9 is the starting positioning groove body, 10 is the starting left positioning piece, 11 is the starting right positioning piece, 12 is the positioning groove body, 13 is the left positioning piece, 14 is the right positioning piece, 15 is the connecting hole, and 16 is the punch hole. Detailed Implementation

[0029] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can be described as the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0031] like Figure 1 As shown, a novel rotor lamination includes a rotor lamination body 1 and a shaft hole 2 located at the center of the rotor lamination body 1. A ring of protruding teeth 3 is provided on the outer side of the rotor lamination body 1, and the two sides of the connection between the protruding teeth 3 and the rotor lamination body 1 form recessed grooves 4. An initial mark position 5 is provided on the rotor lamination body 1. A starting positioning groove 6 and multiple mounting positioning grooves 7 are evenly provided on the edge of the shaft hole 2, with the starting positioning groove 6 corresponding to the position of the initial mark position 5. Positioning grooves 8 are provided on both the starting positioning groove 6 and the multiple mounting positioning grooves 7, and the number of positioning grooves 8 increases sequentially in a clockwise direction along the starting positioning groove 6. Because the protruding teeth 3 are connected to the rotor lamination body 1... The two sides of the groove are recessed to form an inner groove 4. Therefore, when multiple rotor lamination bodies 1 are pressed together, welding can be carried out in the inner groove 4 on the outside of the rotor lamination body 1. At this time, the welded material will fill the inner groove 4. Since the welded material will be welded into the inner groove 4 and fill the inner groove 4, the multi-layer rotor lamination body 1 can be better fixed. Since the number of positioning grooves 8 increases sequentially in the clockwise direction of the starting positioning groove 6, compared with the prior art, the shaft can better engage with the positioning groove 8 to achieve driving, and can also limit the installation of the shaft, thereby determining the direction of shaft insertion. It can also be matched with different shafts according to the needs of use.

[0032] like Figure 2-4 As shown, the starting positioning groove 6 includes a starting positioning groove body 9, a starting left positioning piece 10, and a starting right positioning piece 11; the starting left positioning piece 10 and the starting right positioning piece 11 are respectively disposed on both sides of the starting positioning groove body 9; the positioning groove 8 is connected to the starting right positioning piece 11. By connecting the positioning groove 8 to the starting right positioning piece 11, the boss on the rotating shaft can be better engaged in the positioning groove 8 during shaft installation. In addition, multiple mounting positioning grooves 7 each include a positioning groove body 12, a left positioning piece 13, and a right positioning piece 14; the left positioning piece 13 and the right positioning piece 14 are respectively disposed on both sides of the positioning groove body 12; the positioning groove 12 is connected to the left positioning piece 11. The plates 13 are connected. Since there is only one positioning groove 8 in the starting positioning groove 6, the positioning groove 8 is set on the left positioning plate 13 in the mounting positioning groove 7 opposite to the starting positioning groove 6. In this way, the positioning groove 8 on the starting positioning groove 6 and the positioning groove 8 on the mounting positioning groove 7 will be on the same straight line or in a position near the same straight line. This setting can be matched with more rotating shafts. The included angle between the starting positioning groove 6 and the mounting positioning groove 7, or between adjacent mounting positioning grooves 7, is 90 degrees. Since the included angle between adjacent starting positioning grooves 6 and mounting positioning grooves 7, or between adjacent mounting positioning grooves 7, is 90 degrees, it is convenient to install the rotating shaft.

[0033] In this utility model, the rotor lamination body 1 has several equidistantly spaced connecting holes 15 on the outer circumference of the shaft hole 2. The connecting holes 15 effectively reduce the weight of the rotor lamination body 1, thereby improving operating efficiency. The connecting holes 15 are trapezoidal, but in practical applications, they can also be other shapes, all of which are within the protection scope of this utility model. Between adjacent connecting holes 15, there are punch holes 16. The punch holes 16 can be used to engage with the insulating plate connected to the rotor lamination body 1, thus facilitating the installation and cooperation between the insulating plate and the rotor lamination body 1. There are two punch holes 16, and the diameter of the punch holes 16 gradually increases from the shaft hole 2 outwards. In practical applications, the number of punch holes 16 can be set as needed, all of which are within the protection scope of this utility model. Since there are two punch holes 16, the insulating plate can be better engaged and connected with the rotor lamination body 1.

[0034] Example

[0035] In this embodiment, a shaft hole is provided at the center of the rotor lamination body, and a ring of protruding teeth is provided on the outer side of the rotor lamination body. The two sides of the connection between the protruding teeth and the rotor lamination body form recessed grooves. An initial mark position is provided on the rotor lamination body. A starting positioning groove and multiple installation positioning grooves are evenly provided on the edge of the shaft hole. The starting positioning groove corresponds to the position of the initial mark position. Positioning grooves are provided on both the starting positioning groove and the multiple installation positioning grooves. The number of positioning grooves increases sequentially in a clockwise direction along the starting positioning groove. Because the two sides of the connection between the protruding teeth and the rotor lamination body form recessed grooves… The inner groove allows for welding after multiple rotor laminations are pressed together. The welded material fills the inner groove, effectively fixing the multi-layer rotor laminations. Since the number of positioning grooves increases clockwise from the initial positioning groove, compared to existing technologies, the shaft can better engage with the positioning grooves for driving, while also limiting the shaft's installation direction. This also makes it suitable for shafts of various sizes.

[0036] The positional relationships described in the figures are for illustrative purposes only and should not be construed as limiting this patent. Clearly, the above embodiments of this utility model are merely examples to clearly illustrate the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A novel rotor lamination, comprising a rotor lamination body and a shaft hole disposed at the center of the rotor lamination body, characterized in that: The outer ring of the rotor lamination body is provided with a ring of protruding teeth, and the two sides of the connection between the protruding teeth and the rotor lamination body are concave to form an inner groove. An initial mark is provided on the rotor lamination body; The edge of the shaft hole is uniformly provided with a starting positioning groove and multiple installation positioning grooves, and the starting positioning groove corresponds to the position of the initial mark. The starting positioning slot and the multiple installation positioning slots are each provided with positioning grooves, and the number of positioning grooves increases sequentially in a clockwise direction along the starting positioning slot.

2. The novel rotor lamination according to claim 1, characterized in that: The starting positioning groove includes a starting positioning groove body, a starting left positioning piece, and a starting right positioning piece; The starting left positioning piece and the starting right positioning piece are respectively disposed on both sides of the starting positioning groove; The positioning groove is connected to the starting right positioning piece.

3. The novel rotor lamination according to claim 1, characterized in that: Each of the aforementioned mounting and positioning slots includes a positioning slot body, a left positioning piece, and a right positioning piece; The left positioning piece and the right positioning piece are respectively disposed on both sides of the positioning groove; The positioning groove is connected to the positioning piece on the left side.

4. The novel rotor lamination according to claim 1, characterized in that: The included angle between adjacent starting positioning slots and installation positioning slots, or between adjacent installation positioning slots, is 90 degrees.

5. The novel rotor lamination according to claim 1, characterized in that: The rotor lamination body has several equally spaced connecting holes on the outer circumference corresponding to the shaft hole.

6. The novel rotor lamination according to claim 5, characterized in that: The connecting hole is trapezoidal.

7. The novel rotor lamination according to claim 5, characterized in that: A punch is provided between adjacent connecting holes.

8. The novel rotor lamination according to claim 7, characterized in that: There are two punched holes, and the diameter of the punched holes gradually increases from the shaft hole outwards.

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