Modularized assembled iron core based on interlocking structure

Abstract

The utility model discloses a modular assembly iron core based on an interlocking structure, which comprises an outer core, a slot is arranged on the inner side surface of the outer core, one end of an insertion piece is inserted into the slot, an inner core is inserted into one end of the insertion piece, an interlocking mechanism is arranged at the lower end of the outer core, and the interlocking mechanism is connected with the outer core. And the relative positions of the outer core, the insertion piece and the inner core are quickly and stably limited through insertion type interlocking of the outer core, the insertion piece and the inner core. According to the modularized assembled iron core based on the interlocking structure, a split type modularized design mode of the outer core, the inserting pieces and the inner core is adopted, so that the outer core, the inserting pieces and the inner core can be quickly replaced when any part of the outer core, the inserting pieces and the inner core is abraded or cannot be continuously used due to design change, and the maintenance and replacement difficulty is reduced; the insertion piece and the inner core are sequentially inserted into the outer core and then are mutually locked in a locking bolt installation mode, so that the motor iron core is kept stable in the working process, and the situation that the motor iron core is loosened due to long-time working is avoided.

Description

Technical Field

[0001] This utility model relates to the field of motor rotor core technology, specifically a modular assembly core based on an interlocking structure. Background Technology

[0002] As an indispensable power device in modern industry and daily life, electric motors play a crucial role in many fields such as machinery manufacturing, transportation, and household appliances. Their performance and efficiency directly affect the operational efficiency and energy utilization of related equipment. The stator core, as one of the core components of an electric motor, plays a vital role in the motor's electromagnetic performance, operational stability, and energy conversion efficiency. In traditional motor manufacturing, stator cores typically adopt an integral structure. This integral stator core is generally manufactured from materials such as silicon steel sheets through complex stamping and lamination processes. While this structure can meet the basic operational requirements of motors to a certain extent, its limitations have become increasingly apparent as motor applications expand and technical requirements increase. From a manufacturing process perspective, the production of integral stator cores relies on high-precision, highly complex molds and large stamping equipment. This not only leads to high equipment investment and mold development costs, but also presents challenges in actual production. The precision and stability requirements of the molds are extremely high. Once the molds wear out, are damaged, or require design changes, it will cause the interruption and adjustment of the entire production process, seriously affecting production efficiency and product quality stability. In the transportation and storage stages, the integral stator core faces many challenges due to its large size and heavy weight. During transportation, it is easily subjected to collisions and compression from external factors, which can cause deformation and damage to the core, increasing transportation costs and quality risks. In terms of storage, it requires a lot of space resources, which not only increases warehousing costs but also hinders flexible inventory management and scheduling. More importantly, during the actual operation of the motor, when the stator core suffers from local damage, wear, or performance failure due to design defects, the integral structure makes it extremely difficult to repair or replace the damaged parts individually. Often, the entire stator core needs to be replaced, which not only increases maintenance and time costs but also causes a lot of resource waste, which does not meet the requirements of modern industry for sustainable development and resource conservation. Utility Model Content

[0003] The purpose of this invention is to provide a modular assembled iron core based on an interlocking structure to solve the problem of inconvenient maintenance and replacement mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a modular assembled iron core based on an interlocking structure, including an outer core, a slot is provided on the inner surface of the outer core, and one end of a insert is inserted into the slot, and one end of the insert is inserted into an inner core. An interlocking mechanism is provided at the lower end of the outer core, and the relative positions of the outer core, insert, and inner core are quickly and stably limited through the insertion interlock of the outer core, insert, and inner core.

[0005] Preferably, the interlocking mechanism includes: a limiting groove, the limiting groove being formed on the lower end face of the insert; a limiting hole being formed on the lower outer surface of the inner core; a sliding limiting ring being installed inside the lower end of the outer core; a limiting block being fixedly provided on the upper end face of the limiting ring; a positioning plate being fixedly provided on the outer surface of the limiting ring; a clearance groove and a sliding groove being formed on the lower outer surface of the outer core directly opposite the positioning plate; a locking bolt penetrating one end of the outer surface of the positioning plate; a pressure chamber being formed inside the lower end of the outer core; a piston plate being provided inside the pressure chamber; one end of the piston block penetrating the lower outer surface of the outer core; and the other end of the piston block penetrating the inner surface of the pressure chamber.

[0006] By adopting the above technical solution, the outer core, insert, and inner core can maintain a stable connection during operation.

[0007] Preferably, both ends of the insert are T-shaped, and the outer surface of the insert and the inner core are tightly fitted together.

[0008] The above technical solution enables the insert and the inner core to be stably connected.

[0009] Preferably, the axial section of the limiting ring is T-shaped, and the upper end of the limiting ring penetrates the outer surface of the outer core. The limiting blocks are evenly distributed on the upper end of the limiting ring, and the axial section of the limiting blocks is T-shaped. The limiting blocks are engaged with the inserts through limiting grooves.

[0010] The above technical solution enables the insert to be installed in a limiting position with the outer core.

[0011] Preferably, the positioning plate penetrates the outer surface of the outer core, and one end of the positioning plate penetrating the outer surface of the outer core is located inside the sliding groove, and the sliding groove and the clearance groove are distributed in a T-shape.

[0012] The above technical solution allows the locking bolts to be easily connected to the positioning plate.

[0013] Preferably, the locking bolt is slidably connected to the positioning plate and threadedly connected to the outer core, and the lower end of the locking bolt penetrates the inner top surface of the pressure chamber.

[0014] By adopting the above technical solution, the locking bolt can ensure a stable connection between the limiting block and the limiting groove.

[0015] Preferably, the lower end of the locking bolt is in contact with the upper surface of the piston plate, and a spring is connected between the lower surface of the piston plate and the inner bottom surface of the pressure chamber. The piston plate and the pressure chamber are in sliding friction connection, the piston block and the outer core are in sliding friction connection, and a spring is connected between the piston block and the outer core. The piston block is engaged with the limiting hole.

[0016] By adopting the above technical solution, the piston block can stably engage with the outer core and the inner core through engagement with the limiting hole.

[0017] Compared with the prior art, the beneficial effects of this utility model are: the modular assembly iron core based on the interlocking structure:

[0018] 1. The modular design of the outer core, insert, and inner core is adopted, which allows for quick replacement when any part of the outer core, insert, or inner core becomes worn or unusable due to design changes, reducing the difficulty of maintenance and replacement.

[0019] 2. Furthermore, the insert plates and inner core are sequentially inserted into the outer core and then locked together by locking bolts, so that the motor core remains stable during operation and will not loosen due to long-term operation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the overall cross-sectional three-dimensional structure of this utility model;

[0022] Figure 3 This is a three-dimensional structural diagram of the connection between the pressure chamber, piston plate, and piston block of this utility model;

[0023] Figure 4 This is a three-dimensional structural diagram of the present invention in its overall disassembled state;

[0024] Figure 5 This is a three-dimensional structural diagram of the connection between the insert and the limiting groove of this utility model;

[0025] Figure 6 This is a three-dimensional structural diagram of the connection between the limiting ring, the limiting block, and the positioning plate of this utility model;

[0026] Figure 7 This is a three-dimensional structural diagram of the connection between the outer core and the slot of this utility model.

[0027] In the diagram: 1. Outer core; 2. Slot; 3. Insert; 4. Limiting groove; 5. Inner core; 6. Limiting hole; 7. Limiting ring; 8. Limiting block; 9. Positioning plate; 10. Leaving groove; 11. Sliding groove; 12. Locking bolt; 13. Pressure chamber; 14. Piston plate; 15. Piston block. Detailed Implementation

[0028] 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.

[0029] Please see Figure 1-7 This utility model provides a technical solution: a modular assembled iron core based on an interlocking structure.

[0030] Example 1

[0031] This embodiment discloses: an outer core 1, with a slot 2 on the inner surface of the outer core 1, and one end of a insert 3 is inserted into the slot 2, and one end of the insert 3 is inserted into the inner core 5.

[0032] Both ends of the insert 3 are T-shaped, and the outer surface of the insert 3 and the inner core 5 are tightly fitted together.

[0033] During installation, first insert the insert 3 downwards through the slot 2 into the outer core 1, and then insert the inner core 5 from bottom to top onto the outer surface of the insert 3. The interlocking of the outer core 1, insert 3 and inner core 5 facilitates subsequent replacement.

[0034] Example 2

[0035] This embodiment discloses, based on embodiment 1, that an interlocking mechanism is provided at the lower end of the outer core 1, and the relative position between the outer core 1, the insert 3 and the inner core 5 is quickly and stably limited by the insertion interlock of the outer core 1, the insert 3 and the inner core 5.

[0036] The interlocking mechanism includes: a limiting groove 4, which is opened on the lower end face of the insert 3; a limiting hole 6 is opened on the lower outer surface of the inner core 5; a sliding limiting ring 7 is installed inside the lower end of the outer core 1; a limiting block 8 is fixedly provided on the upper end face of the limiting ring 7; a positioning plate 9 is fixedly provided on the outer surface of the limiting ring 7; a clearance groove 10 and a sliding groove 11 are opened on the lower outer surface of the outer core 1 opposite to the positioning plate 9; a locking bolt 12 penetrates one end of the outer surface of the positioning plate 9; a pressure chamber 13 is opened inside the lower end of the outer core 1; a piston plate 14 is provided inside the pressure chamber 13; one end of a piston block 15 penetrates the lower outer surface of the outer core 1; and the other end of the piston block 15 penetrates the inner surface of the pressure chamber 13.

[0037] The axial section of the limiting ring 7 is T-shaped, and the upper end of the limiting ring 7 penetrates the outer surface of the outer core 1. The limiting blocks 8 are evenly distributed on the upper end of the limiting ring 7, and the axial section of the limiting blocks 8 is T-shaped. The limiting blocks 8 are engaged with the insert 3 through the limiting groove 4.

[0038] The positioning plate 9 penetrates the outer surface of the outer core 1, and one end of the positioning plate 9 penetrating the outer surface of the outer core 1 is located inside the sliding groove 11, and the sliding groove 11 and the clearance groove 10 are distributed in a T-shape.

[0039] The locking bolt 12 is slidably connected to the positioning plate 9, and the locking bolt 12 is threadedly connected to the outer core 1, and the lower end of the locking bolt 12 penetrates the inner top surface of the pressure chamber 13;

[0040] The lower end of the locking bolt 12 is in contact with the upper surface of the piston plate 14, and a spring is connected between the lower surface of the piston plate 14 and the inner bottom surface of the pressure chamber 13. The piston plate 14 and the pressure chamber 13 are in sliding friction connection. The piston block 15 and the outer core 1 are in sliding friction connection. A spring is connected between the piston block 15 and the outer core 1. The piston block 15 is engaged with the limiting hole 6.

[0041] During installation, after the outer core 1, insert 3, and inner core 5 are interlocked, one end of the positioning plate 9 inside the sliding groove 11 drives the limiting ring 7 to rotate. This allows the limiting ring 7 to drive the limiting block 8 to rotate and engage with the limiting groove 4 at the lower end of the insert 3, thus limiting the position between the insert 3 and the outer core 1. Then, the locking bolt 12 is inserted downward through the relief groove 10 into the positioning plate 9, and the locking bolt 12 is tightened to limit the position of the positioning plate 9. At the same time, as the locking bolt 12 is tightened, the lower end of the locking bolt 12 presses against the upper surface of the piston plate 14. The piston plate 14 slides down and compresses the air inside the pressure chamber 13. The increased pressure inside the pressure chamber 13 pushes the piston block 15 out. The piston block 15 engages with the limiting hole 6 to limit the position of the inner core 5, thus interlocking the positions of the outer core 1, insert 3, and inner core 5 to prevent loosening during operation.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A modular assembled iron core based on an interlocking structure, comprising an outer core (1), wherein a slot (2) is provided on the inner surface of the outer core (1), and one end of a insert (3) is inserted into the slot (2), and one end of the insert (3) is inserted into an inner core (5), characterized in that: The lower end of the outer core (1) is provided with an interlocking mechanism. The interlocking of the outer core (1), the insert (3) and the inner core (5) achieves rapid and stable positioning of the relative positions of the outer core (1), the insert (3) and the inner core (5). The interlocking mechanism includes: a limiting groove (4) which is opened on the lower end face of the insert (3). A limiting hole (6) is opened on the lower outer surface of the inner core (5). A sliding limiting ring (7) is installed inside the lower end of the outer core (1), and a limiting block (8) is fixedly provided on the upper end face of the limiting ring (7) to limit the position. A positioning plate (9) is fixedly provided on the outer surface of the ring (7). The outer surface of the lower end of the outer core (1) opposite the positioning plate (9) is provided with a clearance groove (10) and a sliding groove (11). One end of the outer surface of the positioning plate (9) is penetrated by a locking bolt (12). A pressure chamber (13) is provided inside the lower end of the outer core (1), and a piston plate (14) is provided inside the pressure chamber (13). One end of the piston block (15) penetrates the outer surface of the lower end of the outer core (1), and the other end of the piston block (15) penetrates the inner surface of the pressure chamber (13).

2. The modular assembled iron core based on an interlocking structure according to claim 1, characterized in that: Both ends of the insert (3) are T-shaped, and the outer surface of the insert (3) and the inner core (5) are tightly fitted together.

3. A modular assembled iron core based on an interlocking structure according to claim 1, characterized in that: The axial section of the limiting ring (7) is T-shaped, and the upper end of the limiting ring (7) penetrates the outer surface of the outer core (1). The limiting blocks (8) are evenly distributed on the upper end of the limiting ring (7), and the axial section of the limiting blocks (8) is T-shaped. The limiting blocks (8) are engaged with the insert (3) through the limiting groove (4).

4. The modular assembled core based on interlocking structure according to claim 1, characterized in that: The positioning plate (9) penetrates the outer surface of the outer core (1), and one end of the positioning plate (9) penetrating the outer surface of the outer core (1) is located inside the sliding groove (11), and the sliding groove (11) and the clearance groove (10) are distributed in a T-shape.

5. The modular assembled core based on interlocking structure according to claim 1, characterized in that: The locking bolt (12) is slidably connected to the positioning plate (9), and the locking bolt (12) is threadedly connected to the outer core (1), and the lower end of the locking bolt (12) penetrates the inner top surface of the pressure chamber (13).

6. A modular assembled iron core based on an interlocking structure according to claim 1, characterized in that: The lower end of the locking bolt (12) is in contact with the upper surface of the piston plate (14), and a spring is connected between the lower surface of the piston plate (14) and the inner bottom surface of the pressure chamber (13). The piston plate (14) and the pressure chamber (13) are in sliding friction connection. The piston block (15) and the outer core (1) are in sliding friction connection. A spring is connected between the piston block (15) and the outer core (1), and the piston block (15) is engaged with the limiting hole (6).

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