Anti-dislocation rotor core structure

Abstract

The utility model discloses an anti-dislocation rotor iron core structure, which relates to the technical field of rotor iron cores and comprises a first silicon steel sheet on the top surface and a third silicon steel sheet on the bottom surface, a plurality of second silicon steel sheets in an overlapped state are arranged between the first silicon steel sheet and the third silicon steel sheet, and a pin shaft hole is formed in the middle of each silicon steel sheet. A circular ring plate is arranged between the silicon steel sheets, a circle of equidistant positioning holes are formed in the circular ring plate, limiting rods are inserted into the positioning holes, a circle of partition plates are arranged on the side surface of the circular ring plate, and a clamping structure is arranged between every two adjacent silicon steel sheets. All the silicon steel sheets are connected into a whole through the clamping structure between every two adjacent silicon steel sheets, so that the silicon steel sheets are prevented from loosening during rotation.

Description

Technical Field

[0001] The utility model relates to the technical field of rotor cores, in particular to an anti-misalignment rotor core structure. Background Art

[0002] The rotor core is an important component in a motor or generator, used to provide a magnetic circuit to generate a magnetic field. The rotor core is usually made of silicon steel sheets or other magnetic materials, with a specific shape and structure to ensure efficient energy conversion and transmission. In a motor or generator, the main function of the rotor core is to generate an induced electromotive force in the rotational motion, thereby realizing energy conversion. Its structural design needs to consider factors such as magnetic circuit closure, reduced magnetic resistance, and reduced iron loss to improve the efficiency and performance of the equipment; generally, the rotor core formed by stacking silicon steel sheets is bonded together by special glue to form a whole. During long-term use, the glue is aged and loosened, causing misalignment between the silicon steel sheets, and the rotor core works at a high speed, which further accelerates the loosening of the glue and affects the service life of the rotor core; therefore, the above problems need to be improved. Utility Model Content

[0003] The utility model aims to solve the shortcomings in the prior art and proposes a rotor core structure that prevents misalignment.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a rotor core structure with anti-misalignment, including a first silicon steel sheet and a third silicon steel sheet, a plurality of second silicon steel sheets in a superimposed state are arranged between the first silicon steel sheet and the third silicon steel sheet, each of the first silicon steel sheet, the second silicon steel sheet and the third silicon steel sheet is composed of a circular ring plate located in the middle position and a plurality of partition plates integrally formed with the circular ring plate, a plurality of positioning holes are equidistantly provided on the circumferential side of the top of the circular ring plate, and useful positioning limit rods are inserted into the positioning holes.

[0005] Preferably, a pin hole is provided in the middle of each of the circular plates.

[0006] Preferably, the bottom of the partition plates of the first silicon steel sheet and the second silicon steel sheet are both protruded with a snap-in block, and the top of the partition plate of the second silicon steel sheet and the third silicon steel sheet are both punched with a fixing groove for snap-fitting with the snap-in block.

[0007] Preferably, a countersunk groove is provided above the positioning hole of the circular ring plate of the first silicon steel sheet, and an abutment block fixedly connected to the top of the limiting rod is provided in the countersunk groove.

[0008] Preferably, a locking groove is provided at the bottom of the positioning hole of the circular ring plate on the third silicon steel sheet.

[0009] Preferably, an embedded wire space is formed between the partition plates on the circumferential side of the circular ring plate, and a fan-shaped anti-slip block is integrally formed at the end of each partition plate.

[0010] Preferably, an outer thread is provided on the outer wall of the bottom end of the limiting rod, and a circular locking piece with an inner thread provided on the inner ring wall is screwed and connected to the bottom end of the limiting rod, and the circular locking piece abuts against the inside of the locking groove.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: in the utility model, the rotor core is formed by aligning and stacking all the silicon steel sheets together, the clamping blocks and the fixing grooves between two adjacent silicon steel sheets connect all the silicon steel sheets into a whole to prevent loosening between the silicon steel sheets during rotation, and the anti-misalignment function between the silicon steel sheets is realized by embedding the clamping block on the lower end surface of the upper silicon steel sheet into the fixing groove on the upper end surface of the lower silicon steel sheet, and then inserting the limiting rod into the positioning hole on the circular ring plate of the silicon steel sheet, and the countersunk grooves on the first silicon steel sheet and the third silicon steel sheet provide avoidance positions for the abutment blocks and locking plates of the limiting rod, thereby keeping the surface of the rotor core smooth, improving the structural stability of the rotor core and extending the service life of the rotor core. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure proposed by the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the first silicon steel sheet proposed in the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the second silicon steel sheet proposed in the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the third silicon steel sheet proposed in the utility model;

[0017] Figure 5 This is a schematic diagram of the limit rod structure proposed by the utility model.

[0018] Serial numbers in the figure: 1, circular ring plate; 2, partition plate; 3, wire embedding space; 4, pin shaft hole; 5, abutment block; 6, anti-slip block; 7, clamping block; 8, fixing groove; 9, positioning hole; 10, limit rod; 11, locking plate. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Example: See Figure 1-5 , a rotor core structure for preventing dislocation in the utility model comprises a first silicon steel sheet and a third silicon steel sheet, and a plurality of second silicon steel sheets in a superimposed state are arranged between the first silicon steel sheet and the third silicon steel sheet, each of the first silicon steel sheet, the second silicon steel sheet and the third silicon steel sheet is composed of a circular ring plate 1 located in the middle position and a plurality of partition plates 2 integrally formed with the circular ring plate 1, a plurality of positioning holes 9 are equidistantly provided on the top circumferential side of the circular ring plate 1, and a useful positioning limit rod 10 is inserted in the positioning hole 9, a pin shaft hole 4 is provided in the middle of the circular ring plate 1, a clamping block 7 is protruded from the bottom of the partition plate 2 of the first silicon steel sheet and the second silicon steel sheet, and a fixing groove 8 for clamping and fitting with the clamping block 7 is stamped and recessed on the top of the partition plate 2 of the second silicon steel sheet and the third silicon steel sheet; through the cooperation of the clamping block 7 and the fixing groove 8, it is convenient to connect all the first silicon steel sheets, the second silicon steel sheets and the third silicon steel sheets into a whole, and effectively improve the overall stability of the rotor after assembly.

[0021] In the utility model, a countersunk groove is provided above the positioning hole 9 of the circular ring plate 1 of the first silicon steel sheet, and an abutment block 5 fixedly connected to the top of the limiting rod 10 is provided in the countersunk groove, and a locking groove is provided at the bottom of the positioning hole 9 of the circular ring plate 1 on the third silicon steel sheet; lateral sliding between two adjacent silicon steel sheets is effectively prevented, thereby playing the role of preventing the rotor core from misalignment.

[0022] In the utility model, an embedded wire space 3 is formed between the partition plates 2 on the circumferential side of the circular ring plate 1, and a fan-shaped anti-slip block 6 is integrally formed at the end of each partition plate 2. An external thread is provided on the outer wall of the bottom end of the limiting rod 10, and the bottom end of the limiting rod 10 is screwed and connected to a circular locking plate 11 with an internal thread on the inner ring wall, and the circular locking plate 11 abuts against the inside of the locking groove; after all the silicon steel sheets are aligned and stacked, the limiting rod 10 is inserted into the positioning hole 9 to fix the position of all the silicon steel sheets, and at the same time, it can also prevent the adjacent silicon steel sheets from rotating and causing misalignment, thereby enhancing the structural stability of the rotor core.

[0023] Working principle: When the utility model is used, first, the fixing groove 8 on the upper end surface of the second silicon steel sheet is aligned with the clamping block 7 on the lower end surface of the first silicon steel sheet, and then special glue is applied to the contact surface between the multiple silicon steel sheets, and the two adjacent silicon steel sheets are stacked tightly together, and then the remaining second silicon steel sheets are glued together in turn until the last piece, and then the third silicon steel sheet is glued. After the bonding is completed, the limit rod 10 is inserted from the positioning hole 9 of the silicon steel sheet, and the abutment block 5 of the limit rod 10 is embedded in the countersunk groove of the first silicon steel sheet. At the same time, after the limit rod 10 passes through the positioning hole 9 in the middle of the second silicon steel sheet, the bottom end of the limit rod 10 is inserted into the locking groove of the third silicon steel sheet, and then the locking plate 11 is screwed on the bottom end of the limit rod 10. After tightening, the top of the locking plate 11 abuts against the limiting groove of the third silicon steel sheet, and glue is applied to complete the anti-misalignment prevention of the rotor core. After that, the rotor core can be wound with the coil and put into use.

[0024] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A rotor core structure for preventing dislocation, comprising a first silicon steel sheet and a third silicon steel sheet, characterized in that: A plurality of second silicon steel sheets in a stacked state are provided between the first silicon steel sheet and the third silicon steel sheet. Each of the first silicon steel sheet, the second silicon steel sheet and the third silicon steel sheet is composed of a circular ring plate (1) located in the middle and a plurality of partition plates (2) formed integrally with the circular ring plate (1). A plurality of positioning holes (9) are equidistantly provided on the top circumference of the circular ring plate (1), and a positioning rod (10) is inserted into the positioning hole (9).

2. The anti-misalignment rotor core structure according to claim 1, characterized in that: The circular ring plates (1) are each provided with a pin hole (4) in the middle.

3. The anti-misalignment rotor core structure according to claim 1, characterized in that: The bottoms of the partition plates (2) of the first silicon steel sheet and the second silicon steel sheet are both protruded with a snap-fit ​​block (7), and the tops of the partition plates (2) of the second silicon steel sheet and the third silicon steel sheet are both punched with a fixing groove (8) for snap-fitting with the snap-fit ​​block (7).

4. The anti-misalignment rotor core structure according to claim 1, characterized in that: A countersunk groove is provided above the positioning hole (9) of the circular ring plate (1) of the first silicon steel sheet, and an abutment block (5) fixedly connected to the top of the limiting rod (10) is provided in the countersunk groove.

5. The anti-misalignment rotor core structure according to claim 1, characterized in that: A locking groove is provided at the bottom of the positioning hole (9) of the circular ring plate (1) on the third silicon steel sheet.

6. The anti-misalignment rotor core structure according to claim 1, characterized in that: An embedded wire space (3) is formed between the partition plates (2) on the circumferential side of the circular ring plate (1), and a fan-shaped anti-falling block (6) is integrally formed at the end of each partition plate (2).

7. The anti-misalignment rotor core structure according to claim 1, characterized in that: An external thread is provided on the outer wall of the bottom end of the limiting rod (10), and a circular locking piece (11) with an internal thread provided on the inner wall is screwed to the bottom end of the limiting rod (10), and the circular locking piece (11) abuts against the inside of the locking groove.

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