Rotor structure for three-phase asynchronous motor

Abstract

The utility model relates to a three-phase asynchronous motor, in particular to a rotor structure for a three-phase asynchronous motor, which comprises an iron core, mounting grooves are arranged on the outer wall of the iron core, positioning rods are fixedly connected to the inner walls of the plurality of mounting grooves, mounting plates are mounted in the plurality of mounting grooves, and T-shaped plates are fixedly connected to the outer walls of the mounting plates. A locking hole is formed in one end of the mounting plate, a positioning hole is formed in the other end of the mounting plate, the positioning rod is located in the positioning hole, the outer wall of the iron core is sleeved with a lantern ring, a rotating groove is formed in the outer wall of the lantern ring, a rotating ring is arranged in the rotating groove, a threaded ring is fixedly connected to the outer wall of the rotating ring, and the inner wall of the threaded ring is in threaded connection with the outer wall of the iron core. The outer wall of the threaded ring is fixedly connected with a locking rod, and the other end of the locking rod extends into the locking hole. Under the action of the lantern ring and the threaded ring, the winding is more convenient to install, and external tools are not needed; and when the winding breaks down, the winding can be quickly replaced.

Description

Technical Field

[0001] This utility model relates to a three-phase asynchronous motor, and more particularly to a rotor structure for a three-phase asynchronous motor. Background Technology

[0002] The motor rotor, the rotating component of a motor, is a key part for converting electrical energy into mechanical energy. It plays a crucial role in converting electrical energy into mechanical energy and vice versa. Its structure varies, including internal rotor and external rotor rotation modes, to meet different needs. The motor rotor consists of an iron core and windings.

[0003] In the existing technology, the iron core is mostly integrally formed, with multiple T-shaped plates on the outside. Winding operations need to be carried out around the multiple T-shaped plates. However, since the gap between the multiple T-shaped plates is small, tools are needed to press the winding into the gap between two T-shaped plates during the winding operation, which is extremely inconvenient. Furthermore, it is also difficult to replace the winding when it fails. Summary of the Invention

[0004] The purpose of this invention is to provide a rotor structure for a three-phase asynchronous motor that makes it easier to install the windings without the need for external tools; and allows for quick replacement of the windings in case of a fault.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A rotor structure for a three-phase asynchronous motor is provided, including an iron core. Multiple mounting slots are provided on the outer wall of the iron core. Positioning rods are fixedly connected to the inner walls of each of the multiple mounting slots. Mounting plates are installed inside each of the multiple mounting slots. T-shaped plates are fixedly connected to the outer walls of the mounting plates. A locking hole is provided at one end of the mounting plate, and a positioning hole is provided at the other end. The positioning rods are located inside the positioning holes. A collar is fitted onto the outer wall of the iron core. A rotating groove is provided on the outer wall of the collar. A rotating ring is provided inside the rotating groove. A threaded ring is fixedly connected to the outer wall of the rotating ring. The inner wall of the threaded ring is threadedly connected to the outer wall of the iron core. Multiple locking rods are fixedly connected to the outer wall of the threaded ring, and the other end of each locking rod extends into the locking hole.

[0006] Optionally, the inner wall of the collar is fixedly connected with a slider, and there are multiple sliders. The outer wall of the iron core is provided with a groove, and there are multiple grooves. The multiple sliders are respectively located inside the multiple grooves.

[0007] Optionally, the outer walls of the plurality of mounting plates are fixedly connected with limit blocks, and the number of limit blocks is two in each case. The inner walls of the plurality of mounting slots are provided with limit grooves, and the number of limit grooves is two in each case. The limit blocks are located inside the limit grooves.

[0008] Optionally, the iron core has multiple through holes inside, each of which penetrates the outer wall of the iron core. The outer wall of the iron core has multiple heat dissipation holes, each of which is connected to the multiple through holes.

[0009] Optionally, the iron core has multiple through holes, and the iron core also has a pivot hole with a keyway on its inner wall.

[0010] Optionally, the locking hole and the positioning hole are located at both ends of the mounting plate, and the plurality of heat dissipation holes are located in the middle of the two mounting slots.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. Before winding the conductor, the winding is first wound around the periphery of multiple T-shaped plates, with the threaded ring and collar positioned away from the mounting slots. A gap exists between the locking rod and the mounting slot, allowing the limiting blocks to pass through. Two limiting blocks correspond to two limiting slots. The mounting plate is then installed in the mounting slot, with the two limiting blocks corresponding to the two limiting slots. The mounting plate is pushed into the mounting slot until it is fully inserted. The positioning rod is then inserted into the positioning hole. This process is repeated for multiple mounting plates. The threaded ring is then rotated. Because the rotating ring is located in the rotating slot, its movement towards the mounting slot pushes the collar towards the mounting slot. The locking rod connected to the outer wall of the collar is inserted into the locking hole on the outer wall of the mounting plate, thus fixing the multiple mounting plates and T-shaped plates inside the mounting slot. When a winding malfunctions, the threaded ring is rotated in the opposite direction to remove the mounting plate from the mounting slot. This invention makes winding installation more convenient, eliminating the need for external tools, and allows for quick replacement of the winding when a malfunction occurs.

[0013] 2. This utility model has multiple through holes inside the outer wall of the iron core, and multiple heat dissipation holes are provided on the outer wall of the iron core. The multiple heat dissipation holes are connected to the multiple through holes respectively. The heat generated by the iron core during operation can be dissipated to the outside through the multiple through holes and then through the multiple heat dissipation holes. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the positioning rod of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the collar of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the threaded ring of this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the T-shaped plate of this utility model;

[0020] Figure 6 This is a schematic diagram of the structure of the limiting block of this utility model;

[0021] Figure 7 This is a schematic diagram of the internal structure of the present invention;

[0022] Figure 8 This utility model Figure 7 Enlarged diagram of point A in the middle.

[0023] In the diagram: 1. Iron core; 2. Mounting slot; 3. Positioning rod; 4. Mounting plate; 5. T-shaped plate; 6. Locking hole; 7. Positioning hole; 8. Collar; 9. Rotating groove; 10. Rotating ring; 11. Threaded ring; 12. Locking rod; 13. Slider; 14. Sliding groove; 15. Limiting block; 16. Limiting groove; 17. Through hole; 18. Heat dissipation hole; 19. Through hole; 20. Shaft hole; 21. Keyway. Detailed Implementation

[0024] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0026] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] Reference Figure 1-8 The present invention provides a rotor structure for a three-phase asynchronous motor. The rotor structure for a three-phase asynchronous motor includes an iron core 1. Multiple mounting grooves 2 are formed on the outer wall of the iron core 1. Positioning rods 3 are fixedly connected to the inner walls of each mounting groove 2. Mounting plates 4 are installed inside each mounting groove 2. T-shaped plates 5 are fixedly connected to the outer walls of the mounting plates 4. A locking hole 6 is formed at one end of the mounting plate 4, and a positioning hole 7 is formed at the other end. The locking hole 6 and the positioning hole 7 are located at opposite ends of the mounting plate 4. The positioning rods 3 are located inside the positioning holes 7. A collar 8 is fitted onto the outer wall of the iron core 1. A rotating groove 9 is formed on the outer wall of the collar 8. A rotating ring 10 is disposed inside the rotating groove 9. A threaded ring 11 is fixedly connected to the outer wall of the rotating ring 10. The inner wall of the threaded ring 11 is threadedly connected to the outer wall of the iron core 1. A locking rod 12 is fixedly connected to the outer wall of the threaded ring 11, and there are multiple locking rods 12. The other end of the locking rod 12 extends into the interior of the locking hole 6. A slider 13 is fixedly connected to the inner wall of the collar 8, and there are multiple sliders 13. A groove 14 is opened on the outer wall of the iron core 1, and there are multiple grooves 14. Multiple sliders 13 are located inside the multiple grooves 14. Limiting blocks 15 are fixedly connected to the outer walls of multiple mounting plates 4, and there are two limiting blocks 15 in each case. Limiting grooves 16 are opened on the inner walls of multiple mounting slots 2, and there are two limiting grooves 16 in each case. The limiting blocks 15 are located inside the limiting grooves 16.

[0029] Before winding the conductor, the winding is first wound around the periphery of multiple T-shaped plates 5, with the threaded ring 11 and collar 8 positioned away from the multiple mounting slots 2. A gap exists between the locking rod 12 and the mounting slot 2, allowing the limiting block 15 to pass through. The two limiting blocks 15 correspond to the two limiting slots 16. The mounting plate 4 is then installed in the mounting slot 2, with the two limiting blocks 15 corresponding to the two limiting slots 16 respectively. The mounting plate 4 is pushed into the mounting slot 2. After the mounting plate 4 is fully inserted into the mounting slot 2, the positioning rod 3 is inserted. In the mounting hole 7, multiple mounting plates 4 are operated as described above. Then, the threaded ring 11 is rotated. Since the rotating ring 10 is located in the rotating groove 9, when the threaded ring 11 moves towards the mounting groove 2, it pushes the collar 8 towards the mounting groove 2. The locking rod 12 connected to the outer wall of the other side of the collar 8 is inserted into the locking hole 6 on the outer wall of the other side of the mounting plate 4, thereby fixing the multiple mounting plates 4 and the T-shaped plate 5 inside the mounting groove 2. When a winding malfunctions, the threaded ring 11 is rotated in the opposite direction, and the mounting plate 4 can be removed from the mounting groove 2. This invention makes installing windings more convenient, without the need for external tools; and when a winding malfunctions, the winding can be quickly replaced.

[0030] In another embodiment of this utility model, please refer to Figure 2 The iron core 1 has multiple through holes 17 inside, and all of the multiple through holes 17 penetrate the outer wall of the iron core 1. The outer wall of the iron core 1 has multiple heat dissipation holes 18, and the multiple heat dissipation holes 18 are located in the middle of the two mounting slots 2. The multiple heat dissipation holes 18 are connected to the multiple through holes 17 respectively.

[0031] Multiple through holes 17 are opened inside the outer wall of the iron core 1, and multiple heat dissipation holes 18 are opened on the outer wall of the iron core 1. The multiple heat dissipation holes 18 are connected to the multiple through holes 17 respectively. The heat generated by the iron core 1 during operation can be dissipated to the outside through the multiple through holes 17 and then through the multiple heat dissipation holes 18.

[0032] In another embodiment of this utility model, please refer to Figure 7 The iron core 1 has multiple through holes 19 inside. The iron core 1 also has a shaft hole 20 inside. The inner wall of the shaft hole 20 has a keyway 21 for easy connection with the motor shaft.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rotor structure for a three-phase asynchronous motor, comprising an iron core (1), characterized in that: The outer wall of the iron core (1) is provided with mounting grooves (2), and there are multiple mounting grooves (2). The inner wall of each of the multiple mounting grooves (2) is fixedly connected with a positioning rod (3). The interior of each of the multiple mounting grooves (2) is equipped with a mounting plate (4). The outer wall of the mounting plate (4) is fixedly connected with a T-shaped plate (5). One end of the mounting plate (4) is provided with a locking hole (6), and the other end of the mounting plate (4) is provided with a positioning hole (7). The positioning rod (3) is located inside the positioning hole (7). (1) The outer wall is fitted with a collar (8), the outer wall of the collar (8) is provided with a rotating groove (9), the rotating groove (9) is provided with a rotating ring (10), the outer wall of the rotating ring (10) is fixedly connected with a threaded ring (11), the inner wall of the threaded ring (11) is threadedly connected to the outer wall of the iron core (1), the outer wall of the threaded ring (11) is fixedly connected with a locking rod (12), and there are multiple locking rods (12), the other end of the locking rod (12) extends into the interior of the locking hole (6).

2. The rotor structure for a three-phase asynchronous motor as described in claim 1, characterized in that: The inner wall of the collar (8) is fixedly connected with a slider (13), and there are multiple sliders (13). The outer wall of the iron core (1) is provided with a groove (14), and there are multiple grooves (14). The multiple sliders (13) are located inside the multiple grooves (14).

3. The rotor structure for a three-phase asynchronous motor as described in claim 1, characterized in that: Each of the mounting plates (4) has a limiting block (15) fixedly connected to its outer wall, and there are two limiting blocks (15) in each case. Each of the mounting slots (2) has a limiting groove (16) opened on its inner wall, and there are two limiting grooves (16) in each case. The limiting block (15) is located inside the limiting groove (16).

4. The rotor structure for a three-phase asynchronous motor as described in claim 1, characterized in that: The iron core (1) has a through hole (17) inside, and there are multiple through holes (17). All the through holes (17) penetrate the outer wall of the iron core (1). The outer wall of the iron core (1) has a heat dissipation hole (18), and there are multiple heat dissipation holes (18). The multiple heat dissipation holes (18) are respectively connected to the multiple through holes (17).

5. The rotor structure for a three-phase asynchronous motor as described in claim 1, characterized in that: The iron core (1) has a through hole (19) inside, and there are multiple through holes (19). The iron core (1) has a rotating shaft hole (20) inside, and the inner wall of the rotating shaft hole (20) has a keyway (21).

6. The rotor structure for a three-phase asynchronous motor as described in claim 4, characterized in that: The locking hole (6) and the positioning hole (7) are located at both ends of the mounting plate (4), and the plurality of heat dissipation holes (18) are located in the middle of the two mounting slots (2).

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