Motor iron core press-fitting device
By designing a limit rod and a first spring working together, along with an alignment auxiliary structure, the problem of displacement of the motor core during the stacking process was solved, improving the stacking quality and ease of operation, and enabling the automatic reset of the limit rod.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- RONGCHENG AOTE POWER TECH CO LTD
- Filing Date
- 2025-05-08
- Publication Date
- 2026-05-05
AI Technical Summary
The existing motor core is prone to displacement during the stacking process, which affects the stacking quality.
A motor core pressing device was designed, which includes the cooperation of a limiting rod and a first spring. The limiting rod can center and align the core under the action of the first spring, and the alignment auxiliary structure facilitates the placement of the core and the automatic reset of the limiting rod, preventing the core from shifting during stacking.
It improves the quality and convenience of core stacking, prevents core displacement during stacking, and enables automatic reset of the limit rod, simplifying the operation process.
Smart Images
Figure CN224204937U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of motor manufacturing technology, and specifically relates to a motor core pressing device. Background Technology
[0002] The motor core is an important component of a motor, consisting of a stator core and a rotor core. During motor operation, the alternating magnetic field generated by the surrounding alternating current induces alternating currents, or eddy currents, in the stator core. These eddy currents cause the core to heat up, resulting in energy loss. To reduce energy consumption, the motor core is usually stacked using a pressing device to increase resistance. When using the motor core pressing device, multiple cores need to be aligned to improve the stacking quality. In existing technology, cylinders are usually installed on both sides of the stacking mold to push the cores for center alignment. The cylinders are then reset during stacking to avoid affecting the stacking process. However, this method can easily lead to displacement of the cores during the stacking process, thus affecting the core quality.
[0003] To address the aforementioned problems, this application proposes a motor core pressing device. Utility Model Content
[0004] To address the problems mentioned in the background section, this invention provides a motor core pressing device that can limit the movement of the core during core stacking.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a motor core pressing device, including a support plate, a stacking mold installed at the center of the top surface of the support plate, and a core alignment structure provided on the bottom surface of the support plate;
[0006] The core alignment structure includes guide openings symmetrically opened on the support plate with the stacking mold as the axis. Each guide opening is provided with a limit rod. A connecting ring is slidably connected to the outer wall of each guide opening. A first connecting block is fixedly connected to the outer wall of each connecting ring near the stacking mold. A first spring is provided between the first connecting blocks. The two ends of the first spring are fixedly connected to the nearest first connecting block.
[0007] As a preferred embodiment of the motor core pressing device of this utility model, each of the limiting rods has a plurality of first guide grooves arranged in a ring on its outer wall, and each of the connecting rings has a first guide block fixedly connected to its inner wall near the first guide groove. The first guide blocks are respectively arranged in the adjacent first guide grooves.
[0008] As a preferred embodiment of the motor core pressing device of this utility model, a first sleeve is fixedly connected to the center position of the bottom surface of the support plate, and the first spring is disposed inside the first sleeve.
[0009] As a preferred embodiment of the motor core pressing device of this utility model, a second sleeve is fixedly connected to the bottom surface of each connecting ring, a reset plate is slidably connected to the inner side of each second sleeve, a fixing plate is fixedly connected to the bottom end of each second sleeve, and a second spring is fixedly connected to the top surface of each fixing plate. The top ends of the second springs are respectively fixedly connected to the bottom surface of the nearby reset plate.
[0010] As a preferred embodiment of the motor core pressing device of this utility model, each of the second sleeves is provided with a plurality of second guide grooves arranged in a ring, and each of the reset plates is fixedly connected with a second guide block near the position of the second guide groove, and the second guide blocks are respectively arranged in the adjacent second guide grooves.
[0011] As a preferred embodiment of the motor core pressing device of this utility model, an alignment auxiliary structure is provided on the bottom surface of the support plate near the core alignment structure;
[0012] The alignment auxiliary structure includes second connecting blocks symmetrically arranged around the stacking mold as the axis. The second connecting blocks are respectively fixedly connected to the adjacent first connecting blocks. A first rack is fixedly connected to the side of the second connecting block closest to the stacking mold on one side, and a second rack is fixedly connected to the side of the other second connecting block closest to the stacking mold on the other side. The first rack is located at the end of the second connecting block closest to the first connecting block, and the second rack is located at the end of the second connecting block furthest from the first connecting block. A gear is rotatably connected to the bottom surface of the support plate at a position between the second rack and the first rack. Both the second rack and the first rack are meshed with the gear.
[0013] In a preferred embodiment of the motor core pressing device of this utility model, a connecting rod is fixedly connected to the center position of the side of the second rack away from the gear, a handle is fixedly connected to the side of the connecting rod away from the second rack, a limit frame is fixedly connected to the bottom surface of the support plate near the handle, and the connecting rod is disposed inside the limit frame.
[0014] As a preferred embodiment of the motor core pressing device of this utility model, a stacking structure is provided on the top surface of the support plate;
[0015] The stacked structure includes side plates fixedly connected to both sides of the top surface of the support plate, a top plate fixedly connected to the top surface of the side plates, a pressure plate provided at the bottom of the top plate, and a hydraulic cylinder installed at the center of the top surface of the top plate. The piston rod of the hydraulic cylinder passes through the top plate and is fixedly connected to the top surface of the pressure plate.
[0016] As a preferred embodiment of the motor core pressing device of this utility model, guide holes are provided at the four corners of the pressing plate, a guide rod is provided in each guide hole, the top end of each guide rod is fixedly connected to the bottom surface of the top plate, the bottom end of each guide rod is fixedly connected to the top surface of the support plate, a collar is slidably connected to the outer wall of each guide rod, a third spring is fixedly connected to the bottom surface of each collar, and the bottom end of each third spring is fixedly connected to the top surface of the support plate.
[0017] As a preferred embodiment of the motor core pressing device of this utility model, support legs are fixedly connected to the four corners of the bottom surface of the support plate.
[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: This application incorporates a core alignment structure, which utilizes the cooperation of a limiting rod and a first spring. The limiting rod, under the action of the first spring, can center and align the core. Since the limiting rod can move up and down within the connecting ring, it is unnecessary to remove the limiting rod during core stacking. This allows the limiting rod to continuously limit and align the core on the stacking mold, preventing displacement during stacking and improving the quality of core stacking. Furthermore, after core stacking is complete, the second spring drives the reset plate to reset, which in turn drives the limiting rod to reset, thus achieving automatic reset of the limiting rod after core stacking, facilitating use. Simultaneously, an alignment auxiliary structure is added. When placing the core, the handle can be used to move the second rack, causing the gear to drive the first rack in the opposite direction to the second rack. This causes the second rack and the first rack to move the limiting rods on both sides away from each other, making it easier for workers to place the core on the stacking mold between the limiting rods, improving usability. Attached Figure Description
[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0020] Figure 1 This is a schematic diagram of the structure of this utility model;
[0021] Figure 2 In this utility model Figure 1 A schematic diagram of the first partial structure;
[0022] Figure 3 In this utility model Figure 1 A schematic diagram of the second local structure;
[0023] Figure 4 In this utility model Figure 2 A partial structural diagram;
[0024] Figure 5 In this utility model Figure 4 A schematic diagram of the first partial structure;
[0025] Figure 6 In this utility model Figure 5 A partial structural diagram;
[0026] Figure 7 In this utility model Figure 6 A partial structural diagram;
[0027] Figure 8 In this utility model Figure 4 A schematic diagram of the second local structure;
[0028] In the picture:
[0029] 1. Support plate; 11. Support legs;
[0030] 2. Stacking mold;
[0031] 3. Core alignment structure; 31. Guide opening; 32. Limiting rod; 33. Connecting ring; 34. First guide groove; 35. First guide block; 36. First connecting block; 37. First spring; 38. First sleeve; 39. Second sleeve; 310. Reset plate; 311. Fixing plate; 312. Second spring; 313. Second guide groove; 314. Second guide block;
[0032] 4. Alignment auxiliary structure; 41. Second connecting block; 42. First rack; 43. Second rack; 44. Gear; 45. Connecting rod; 46. Handle; 47. Limiting frame;
[0033] 5. Stacked structure; 51. Side plate; 52. Top plate; 53. Hydraulic cylinder; 54. Pressure plate; 55. Guide hole; 56. Guide rod; 57. Collar; 58. Third spring. Detailed Implementation
[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0035] Example 1
[0036] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown;
[0037] In order to limit the iron core during iron core stacking, this motor iron core pressing device includes a support plate 1, a stacking mold 2 is installed at the center of the top surface of the support plate 1, and an iron core alignment structure 3 is provided on the bottom surface of the support plate 1.
[0038] The core alignment structure 3 includes guide openings 31 symmetrically opened on the support plate 1 with the stacking mold 2 as the axis. Each guide opening 31 is provided with a limit rod 32. Each guide opening 31 has a connecting ring 33 slidably connected to its outer wall. Each connecting ring 33 has a first connecting block 36 fixedly connected to its outer wall near the stacking mold 2. A first spring 37 is provided between the first connecting blocks 36. The two ends of the first spring 37 are fixedly connected to the adjacent first connecting block 36 respectively.
[0039] In this implementation scheme: when stacking the motor core, the limiting rods 32 on both sides are first separated and the motor core is placed on the stacking mold 2. The limiting rods 32 drive the connecting ring 33 and the first connecting block 36 to move together, so that the first spring 37 changes from a relaxed state to a stretched state. After the core is placed, the movement of the limiting rods 32 is stopped, and the limiting rods 32 move in the guide opening 31 under the action of the first spring 37 to center and align the core. When stacking the core on the stacking mold 2, since the limiting rods 32 can move up and down in the connecting ring 33, it is not necessary to remove the limiting rods 32 when stacking the core. The limiting rods 32 can always limit and align the core on the stacking mold 2, preventing displacement of the core during stacking and improving the quality of core stacking.
[0040] Furthermore:
[0041] like Figure 5 and Figure 6 As shown;
[0042] Based on the above:
[0043] To prevent the limiting rod 32 from rotating arbitrarily, in an optional embodiment, a plurality of first guide grooves 34 are provided on the outer wall of each limiting rod 32 in a ring-shaped distribution. A first guide block 35 is fixedly connected to the inner wall of each connecting ring 33 near the first guide groove 34. The first guide blocks 35 are respectively disposed in the adjacent first guide groove 34.
[0044] In this embodiment, by setting the first guide groove 34 and the first guide block 35, the up and down movement of the limiting rod 32 can be guided, while preventing the rotation of the limiting rod 32 from affecting the neatness of the iron core.
[0045] Furthermore:
[0046] like Figure 4 As shown;
[0047] Based on the above:
[0048] To prevent the first spring 37 from bending, in an optional embodiment, a first sleeve 38 is fixedly connected to the center of the bottom surface of the support plate 1, and the first spring 37 is disposed inside the first sleeve 38.
[0049] In this embodiment, by placing the first spring 37 inside the first sleeve 38, the first spring 37 can be prevented from bending when stretched or reset, thereby improving the stability when the iron core is aligned.
[0050] Furthermore:
[0051] like Figure 5 , Figure 6 and Figure 7 As shown;
[0052] Based on the above:
[0053] In order to enable the limiting rod 32 to automatically reset, in an optional embodiment, a second sleeve 39 is fixedly connected to the bottom surface of each connecting ring 33, a reset plate 310 is slidably connected to the inner side of each second sleeve 39, a fixing plate 311 is fixedly connected to the bottom end of each second sleeve 39, a second spring 312 is fixedly connected to the top surface of each fixing plate 311, the top end of the second spring 312 is fixedly connected to the bottom surface of the nearby reset plate 310, a plurality of second guide grooves 313 arranged in a ring are provided on each second sleeve 39, and a second guide block 314 is fixedly connected to the position of each reset plate 310 near the second guide groove 313, and the second guide blocks 314 are respectively disposed in the nearby second guide groove 313.
[0054] In this embodiment: when the limiting rod 32 is pressed down, the reset plate 310 will move downward within the second sleeve 39. When the reset plate 310 moves downward, the second spring 312 will change from a relaxed state to a compressed state. After the iron core is stacked, the limiting rod 32 will no longer be pressed down, and the second spring 312 will drive the reset plate 310 to reset, causing the reset plate 310 to move upward within the second sleeve 39. During the movement, the limiting rod 32 will also move together, causing the limiting rod 32 to reset as well. This achieves automatic reset of the limiting rod 32 after the iron core is stacked, which is convenient to use. Furthermore, by setting the second guide groove 313 and the second guide block 314, the reset plate 310 can be prevented from rotating within the second sleeve 39, preventing the rotation of the reset plate 310 from affecting the normal use of the second spring 312.
[0055] Furthermore:
[0056] like Figure 1 , Figure 2 and Figure 8 As shown;
[0057] Based on the above:
[0058] To facilitate the placement of the iron core, in an optional embodiment, an alignment auxiliary structure 4 is provided on the bottom surface of the support plate 1 near the iron core alignment structure 3;
[0059] The alignment auxiliary structure 4 includes a second connecting block 41 symmetrically arranged around the stacking mold 2. The second connecting blocks 41 are fixedly connected to the first connecting block 36 that is close to them. A first rack 42 is fixedly connected to the side of the second connecting block 41 that is close to the stacking mold 2, and a second rack 43 is fixedly connected to the side of the other second connecting block 41 that is close to the stacking mold 2. The first rack 42 is located at the end of the second connecting block 41 that is close to the first connecting block 36, and the second rack 43 is located at the end of the second connecting block 41 that is away from the first connecting block 36. A gear 44 is rotatably connected to the bottom surface of the support plate 1 at the position between the second rack 43 and the first rack 42. Both the second rack 43 and the first rack 42 are meshed with the gear 44.
[0060] In this embodiment: when placing the iron core, the second rack 43 can be moved to drive the gear 44 to rotate. When the gear 44 rotates, it will drive the first rack 42 to move in the opposite direction to the second rack 43. This will cause the second rack 43 and the first rack 42 to drive the first connecting blocks 36 on both sides to move in opposite directions, so that the limiting rods 32 on both sides can move away from each other, making it convenient for the staff to place the iron core between the limiting rods 32.
[0061] Furthermore:
[0062] like Figure 4 and Figure 8 As shown;
[0063] Based on the above:
[0064] To facilitate the movement of the second rack 43, in an optional embodiment, a connecting rod 45 is fixedly connected to the center position of the side of the second rack 43 away from the gear 44, and a handle 46 is fixedly connected to the side of the connecting rod 45 away from the second rack 43. A limiting frame 47 is fixedly connected to the bottom surface of the support plate 1 near the handle 46, and the connecting rod 45 is disposed inside the limiting frame 47.
[0065] In this embodiment: by using the handle 46, the connecting rod 45 can be moved together, so that the connecting rod 45 can drive the second rack 43 to move, which makes it convenient for the staff to move the second rack 43. Furthermore, by setting the limiting frame 47, the connecting rod 45 can be limited to prevent the connecting rod 45 from moving excessively.
[0066] Furthermore:
[0067] like Figure 1 and Figure 3 As shown;
[0068] Based on the above:
[0069] In order to achieve the stacking of the iron core, in an optional embodiment, a stacking structure 5 is provided on the top surface of the support plate 1;
[0070] The stacked structure 5 includes side plates 51 fixedly connected to both sides of the top surface of the support plate 1. A top plate 52 is fixedly connected to the top surface of the side plates 51. A pressure plate 54 is provided at the bottom of the top plate 52. A hydraulic cylinder 53 is installed at the center of the top surface of the top plate 52. The piston rod of the hydraulic cylinder 53 passes through the top plate 52 and is fixedly connected to the top surface of the pressure plate 54. Guide holes 55 are provided at the four corners of the pressure plate 54. A guide rod 56 is provided in each guide hole 55. The top end of each guide rod 56 is fixedly connected to the bottom surface of the top plate 52. The bottom end of each guide rod 56 is fixedly connected to the top surface of the support plate 1. A collar 57 is slidably connected to the outer wall of each guide rod 56. A third spring 58 is fixedly connected to the bottom surface of each collar 57. The bottom end of each third spring 58 is fixedly connected to the top surface of the support plate 1.
[0071] In this embodiment: the hydraulic cylinder 53 can drive the pressure plate 54 to move, causing the pressure plate 54 to press down, thereby stacking the iron core on the stacking mold 2. By setting the guide rod 56 and the guide hole 55, the movement of the pressure plate 54 can be guided to prevent the pressure plate 54 from deviating and improve the stacking quality. At the same time, due to the setting of the collar 57 and the third spring 58, when the pressure plate 54 contacts the collar 57, it will drive the collar 57 to move together, so that the third spring 58 will buffer the movement of the pressure plate 54, reduce the impact force from the stacking process, and improve the stability during stacking.
[0072] Furthermore:
[0073] like Figure 1 and Figure 2 As shown;
[0074] Based on the above:
[0075] In order to provide stable support for the pressing device, in an optional embodiment, support legs 11 are fixedly connected to the four corners of the bottom surface of the support plate 1.
[0076] In this embodiment, the support leg 11 can provide stable support for the pressing device.
[0077] The working principle and usage process of this utility model are as follows: When pressing the motor core, the handle 46 is used to drive the connecting rod 45 to move together, causing the connecting rod 45 to drive the second rack 43 to move. When the gear 44 rotates, it will drive the first rack 42 to move in the opposite direction to the movement of the second rack 43. This causes the second rack 43 and the first rack 42 to drive the first connecting blocks 36 on both sides to move in opposite directions, causing the first spring 37 to change from a relaxed state to a stretched state and allowing the limiting rods 32 on both sides to move away from each other. The operator can then place the iron core onto the stacking mold 2. Afterwards, stop using handle 46, allowing the limit rod 32 to move within the guide opening 31 under the action of the first spring 37, aligning the iron core centrally. Then, activate the hydraulic cylinder 53 to move the pressure plate 54, causing it to press down and stack the iron core on the stacking mold 2. The guide rod 56 and guide hole 55 guide the movement of the pressure plate 54, preventing it from shifting and improving the stacking quality. Simultaneously, due to the inclusion of the collar 57 and the third spring 58, when… When the pressure plate 54 contacts the collar 57, it causes the collar 57 to move together, allowing the third spring 58 to buffer the movement of the pressure plate 54, reducing the impact force from the stacking process and improving the stability during stacking. During the iron core stacking process, since the limiting rod 32 can move up and down within the connecting ring 33, it is not necessary to remove the limiting rod 32 during iron core stacking. This allows the limiting rod 32 to continuously limit and align the iron core on the stacking mold 2, preventing displacement of the iron core during stacking, improving the quality of iron core stacking, and when the limiting rod... When 32 is pressed down, the reset plate 310 moves downward within the second sleeve 39. As the reset plate 310 moves downward, the second spring 312 changes from a relaxed state to a compressed state. After the iron core is stacked, the limit rod 32 is no longer pressed down, and the second spring 312 drives the reset plate 310 to reset, causing the reset plate 310 to move upward within the second sleeve 39. During this movement, the limit rod 32 moves together, causing the limit rod 32 to also reset. This achieves automatic reset of the limit rod 32 after the iron core is stacked, making it convenient to use.
[0078] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A motor core pressing device, characterized in that: Includes a support plate (1), a stacking mold (2) is installed at the center of the top surface of the support plate (1), and a core alignment structure (3) is provided on the bottom surface of the support plate (1); The core alignment structure (3) includes guide openings (31) symmetrically opened on the support plate (1) with the stacking mold (2) as the axis. Each guide opening (31) is provided with a limit rod (32). Each guide opening (31) is slidably connected with a connecting ring (33) on its outer wall. Each connecting ring (33) is fixedly connected with a first connecting block (36) near the stacking mold (2) on its outer wall. A first spring (37) is provided between the first connecting blocks (36). The two ends of the first spring (37) are fixedly connected to the adjacent first connecting block (36).
2. The motor core pressing device according to claim 1, characterized in that: Each of the limiting rods (32) has a plurality of first guide grooves (34) arranged in a ring on its outer wall. Each of the connecting rings (33) has a first guide block (35) fixedly connected to the inner wall near the first guide groove (34). The first guide blocks (35) are respectively arranged in the adjacent first guide grooves (34).
3. The motor core pressing device according to claim 1, characterized in that: The first sleeve (38) is fixedly connected to the center of the bottom surface of the support plate (1), and the first spring (37) is disposed inside the first sleeve (38).
4. The motor core pressing device according to claim 1, characterized in that: A second sleeve (39) is fixedly connected to the bottom surface of each connecting ring (33). A reset plate (310) is slidably connected to the inner side of each second sleeve (39). A fixing plate (311) is fixedly connected to the bottom end of each second sleeve (39). A second spring (312) is fixedly connected to the top surface of each fixing plate (311). The top ends of the second springs (312) are respectively fixedly connected to the bottom surface of the nearby reset plate (310).
5. The motor core pressing device according to claim 4, characterized in that: Each of the second sleeves (39) has a plurality of second guide grooves (313) arranged in a ring. Each of the reset plates (310) is fixedly connected to a second guide block (314) near the second guide groove (313). The second guide blocks (314) are respectively disposed in the adjacent second guide grooves (313).
6. The motor core pressing device according to claim 1, characterized in that: An alignment auxiliary structure (4) is provided on the bottom surface of the support plate (1) near the iron core alignment structure (3); The alignment auxiliary structure (4) includes a second connecting block (41) symmetrically arranged around the stacking mold (2) as the axis. The second connecting block (41) is fixedly connected to the adjacent first connecting block (36). A first rack (42) is fixedly connected to the side of the second connecting block (41) near the stacking mold (2), and a second rack (43) is fixedly connected to the other second connecting block (41) near the stacking mold (2). The first rack (42) is located at the end of the second connecting block (41) near the first connecting block (36), and the second rack (43) is located at the end of the second connecting block (41) away from the first connecting block (36). A gear (44) is rotatably connected to the bottom surface of the support plate (1) located between the second rack (43) and the first rack (42). The second rack (43) and the first rack (42) are both meshed with the gear (44).
7. The motor core pressing device according to claim 6, characterized in that: A connecting rod (45) is fixedly connected to the center of the side of the second rack (43) away from the gear (44). A handle (46) is fixedly connected to the side of the connecting rod (45) away from the second rack (43). A limiting frame (47) is fixedly connected to the bottom surface of the support plate (1) near the handle (46). The connecting rod (45) is disposed inside the limiting frame (47).
8. The motor core pressing device according to claim 1, characterized in that: A stacked structure (5) is provided on the top surface of the support plate (1); The stacked structure (5) includes side plates (51) fixedly connected to both sides of the top surface of the support plate (1), a top plate (52) fixedly connected to the top surface of the side plates (51), a pressure plate (54) provided at the bottom of the top plate (52), and a hydraulic cylinder (53) installed at the center of the top surface of the top plate (52). The piston rod of the hydraulic cylinder (53) passes through the top plate (52) and is fixedly connected to the top surface of the pressure plate (54).
9. The motor core pressing device according to claim 8, characterized in that: The pressure plate (54) has guide holes (55) at its four corners. Each guide hole (55) is provided with a guide rod (56). The top end of each guide rod (56) is fixedly connected to the bottom surface of the top plate (52). The bottom end of each guide rod (56) is fixedly connected to the top surface of the support plate (1). Each guide rod (56) has a collar (57) slidably connected to its outer wall. Each collar (57) has a third spring (58) fixedly connected to its bottom surface. The bottom end of each third spring (58) is fixedly connected to the top surface of the support plate (1).
10. The motor core pressing device according to claim 1, characterized in that: Support legs (11) are fixedly connected to the four corners of the bottom surface of the support plate (1).