Motor rotor core fixing structure

Abstract

The utility model relates to the technical field of motors, and discloses a motor rotor iron core fixing structure, which comprises an iron core, four magnetic steel grooves are uniformly arranged on the iron core, magnetic steel is inserted in the magnetic steel grooves, an annular groove is arranged at the top of the iron core, a locking assembly is mounted in the annular groove, and the locking assembly is fixed on the iron core. The four locking assemblies are evenly arranged corresponding to the magnetic steel grooves, and a rotating ring is rotationally installed at a groove opening of the annular groove. The defects in the prior art are overcome, after the magnetic steel is inserted into the magnetic steel groove, a worker can rotate the rotating ring with the hand, in the rotating process of the rotating ring, the guide column of the locking assembly slides along the guide hole, the guide column and the guide hole are matched with each other to push the butt joint column to enter the butt joint groove in the magnetic steel, and the magnetic steel is locked. And meanwhile, a worker can control the positioning column to enter the positioning groove, the position of the butt joint column is locked, and the stability of the magnetic steel is further guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, and more particularly to a motor rotor core fixing structure. Background Art

[0002] The rotor core is an important component of the motor rotor. Its main function is to conduct magnetism and generate electromagnetic force. The rotor core plays a key role in the motor. It can not only improve the efficiency and power of the motor, but also improve the dynamic performance of the motor and reduce noise. During the motor manufacturing and maintenance process, the rotor core is also often used for motor inspection and maintenance.

[0003] Deficiencies of the existing technology: Under the existing technology, in addition to the iron core, the more important part of the motor rotor is the magnet. The magnet is generally inserted inside the rotor iron core, or attached to the inner and outer surfaces of the iron core. When the magnet is installed by insertion, a magnet slot is opened on the corresponding iron core. The staff completes the installation of the magnet by inserting the magnet into the magnet slot. However, after the magnet is inserted into the magnet slot, the magnet is generally only pressed and fixed in the direction of elastic deformation. After long-term use, the stability of the magnet will be reduced due to wear and other reasons, causing the magnet to be detached from the magnet slot. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a motor rotor core fixing structure to solve the problems existing in the above-mentioned background technology.

[0005] The utility model provides the following technical solution: a motor rotor core fixing structure, comprising an iron core, wherein the iron core is provided with a magnetic steel slot, four of the magnetic steel slots are evenly arranged, a magnetic steel is inserted into the magnetic steel slot, an annular groove is provided at the top of the iron core, a locking assembly is installed in the annular groove, four of the locking assemblies are evenly arranged corresponding to the magnetic steel slots, and a rotating ring is rotatably installed at the notch of the annular groove.

[0006] The locking assembly includes a moving frame, a guide column is fixedly installed on the top of the moving frame, a guide hole is opened on the rotating ring, four guide holes are evenly arranged, the guide column is located in the guide hole, and a docking column is fixedly installed on one side of the moving frame, one end of the docking column passes through the annular groove wall and extends into the magnetic steel groove.

[0007] Preferably, each of the locking components includes two sliding rods, both ends of the sliding rods are fixedly connected to the annular groove wall, and the moving frame is sleeved on the surface of the sliding rods.

[0008] Preferably, a docking groove is provided on one side of the magnetic steel, and the docking groove matches the docking column.

[0009] Preferably, a guide post is fixedly mounted on the bottom of the annular groove, a guide hole is opened on the rotating ring, and the guide post is located in the guide hole.

[0010] Preferably, a built-in groove is provided on the top of the rotating ring, a toggle block is provided in the built-in groove, a positioning column is fixedly installed on one side of the toggle block, one end of the positioning column passes through the built-in groove wall and extends into the guide hole, a fixed cylinder is provided on the other side of the toggle block, the fixed cylinder is fixedly connected to the built-in groove wall, a movable rod is slidably installed inside the fixed cylinder, and one end of the movable rod is fixedly connected to the other side of the toggle block.

[0011] Preferably, a compression spring is sleeved on the surface of the movable rod, one end of the compression spring is fixedly connected to the side of the toggle block away from the positioning column, and the other end of the compression spring is fixedly connected to the side of the fixed tube toward the toggle block, and a positioning groove is provided on the surface of the guide column, and the positioning column matches the positioning groove.

[0012] Technical effects and advantages of this utility model:

[0013] The utility model solves the shortcomings of the existing technology. After the magnet is inserted into the magnet slot, the staff can rotate the rotating ring by hand. During the rotation of the rotating ring, the guide post of the locking assembly slides along the guide hole, and the guide post and the guide hole cooperate with each other to push the docking post into the docking groove on the magnet, thereby locking the magnet in the magnet slot. At the same time, the staff can control the positioning post to enter the positioning groove, and the positioning post and the positioning groove cooperate with each other to fix the position of the rotating ring, and the overall position of the locking assembly is also fixed, thereby locking the position of the docking post, further ensuring the stability of the magnet, and effectively preventing the magnet from escaping from the magnet slot. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 This is a schematic diagram of the core top structure of the utility model.

[0016] Figure 3 This is a schematic diagram of the internal structure of the annular groove of the present utility model.

[0017] Figure 4 For this utility model Figure 3 A magnified view of the structure in Figure 2.

[0018] Figure 5 This is a schematic diagram of the magnetic steel top structure of the present invention.

[0019] Figure 6 This is a schematic diagram of the rotating ring structure of the present utility model.

[0020] Figure 7For this utility model Figure 6 A magnified view of the structure at point B in FIG.

[0021] The accompanying drawings are marked as follows: 1. iron core; 11. magnetic steel groove; 12. annular groove; 13. guide column; 14. positioning groove; 2. magnetic steel; 21. docking groove; 3. locking assembly; 31. moving frame; 32. docking column; 33. guide column; 34. sliding rod; 4. rotating ring; 41. guide hole; 42. guide hole; 43. built-in groove; 44. toggle block; 45. positioning column; 46. fixing cylinder; 47. movable rod; 48. compression spring. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the drawings in the present invention. In addition, the forms of the various structures described in the following embodiments are merely examples. The motor rotor core fixing structure involved in the present invention is not limited to the various structures described in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] The utility model provides a motor rotor core fixing structure, including an iron core 1, a magnetic steel slot 11 is opened on the iron core 1, four magnetic steel slots 11 are evenly arranged, a magnetic steel 2 is inserted into the magnetic steel slot 11, an annular groove 12 is opened on the top of the iron core 1, a locking assembly 3 is installed in the annular groove 12, four locking assemblies 3 are evenly arranged corresponding to the magnetic steel slots 11, and a rotating ring 4 is rotatably installed at the notch of the annular groove 12.

[0024] The locking assembly 3 includes a moving frame 31, a guide column 33 is fixedly installed on the top of the moving frame 31, a guide hole 41 is opened on the rotating ring 4, four guide holes 41 are evenly arranged, the guide column 33 is located in the guide hole 41, and a docking column 32 is fixedly installed on one side of the moving frame 31, one end of the docking column 32 passes through the wall of the annular groove 12 and extends into the magnetic steel groove 11.

[0025] Furthermore, each locking assembly 3 includes two sliding rods 34, both ends of which are fixedly connected to the groove wall of the annular groove 12, and the moving frame 31 is sleeved on the surface of the sliding rod 34. The moving frame 31 and the sliding rod 34 form a sliding guide along the axial direction of the sliding rod 34. A docking groove 21 is opened on one side of the magnet 2, and the docking groove 21 matches the docking column 32. When the docking column 32 enters the docking groove 21, the docking column 32 and the docking groove 21 cooperate with each other to fix the magnet 2 in the magnetic groove 11.

[0026] Furthermore, a guide post 13 is fixedly installed at the bottom of the annular groove 12 , and a guide hole 42 is opened on the rotating ring 4 . The guide post 13 is located in the guide hole 42 . When the rotating ring 4 rotates, the guide post 13 can slide synchronously along the guide hole 42 .

[0027] Furthermore, a built-in groove 43 is provided on the top of the rotating ring 4, and a toggle block 44 is provided in the built-in groove 43. A positioning column 45 is fixedly installed on one side of the toggle block 44. One end of the positioning column 45 passes through the wall of the built-in groove 43 and extends into the guide hole 42. A fixed cylinder 46 is provided on the other side of the toggle block 44. The fixed cylinder 46 is fixedly connected to the wall of the built-in groove 43. A movable rod 47 is slidably installed inside the fixed cylinder 46. A sliding guide is formed between the fixed cylinder 46 and the movable rod 47 along the axis direction of the movable rod 47. One end of the movable rod 47 It is fixedly connected to the other side of the toggle block 44, and a compression spring 48 is sleeved on the surface of the movable rod 47. One end of the compression spring 48 is fixedly connected to the side of the toggle block 44 away from the positioning column 45, and the other end of the compression spring 48 is fixedly connected to the side of the fixed tube 46 facing the toggle block 44. A positioning groove 14 is provided on the surface of the guide column 13, and the positioning column 45 matches the positioning groove 14. The elastic force of the compression spring 48 can drive the positioning column 45 into the positioning groove 14, and the positioning column 45 and the positioning groove 14 cooperate with each other to lock the position of the rotating ring 4.

[0028] The working principle of the present utility model is as follows: during actual operation, the staff inserts the magnet 2 into the magnet groove 11, and manually depresses the toggle block 44 to make the movable rod 47 slide toward the inside of the fixed cylinder 46. The compression spring 48 contracts under the pressure of the toggle block 44 and the fixed cylinder 46. The elastic force of the compression spring 48 increases, the toggle block 44 moves and drives the positioning column 45 to retract into the built-in groove 43. At this time, the staff rotates the rotating ring 4. While the rotating ring 4 rotates, the guide column 33 slides along the guide hole 41, and the guide column 13 slides along the guide hole 42. When the guide column 33 and the fixed cylinder 46 are pressed, the guide column 13 slides along the guide hole 42. Under the cooperation of the guide hole 41, the moving frame 31 slides along the sliding rod 34 in the direction away from the center of the iron core 1, and the moving frame 31 moves and drives the docking column 32 to move synchronously. The docking column 32 is inserted into the docking groove 21, and the docking column 32 cooperates with the docking groove 21 to fix the magnet 2 in the magnet groove 11. The staff then releases the toggle block 44, and the elastic force of the compression spring 48 drives the positioning column 45 into the positioning groove 14. The positioning column 45 cooperates with the positioning groove 14 to fix the position of the rotating ring 4, and the overall position of the locking assembly 3 is also fixed.

[0029] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0030] Secondly: The drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments disclosed in this utility model. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model can be combined with each other.

[0031] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A motor rotor core fixing structure, comprising an iron core (1), characterized in that: The iron core (1) is provided with a magnetic steel slot (11), four of the magnetic steel slots (11) are evenly arranged, a magnetic steel (2) is inserted into the magnetic steel slot (11), an annular groove (12) is provided on the top of the iron core (1), a locking assembly (3) is installed in the annular groove (12), four of the locking assemblies (3) are evenly arranged corresponding to the magnetic steel slots (11), and a rotating ring (4) is rotatably installed at the notch of the annular groove (12); The locking assembly (3) includes a moving frame (31), a guide column (33) is fixedly installed on the top of the moving frame (31), a guide hole (41) is opened on the rotating ring (4), four guide holes (41) are evenly arranged, and the guide column (33) is located in the guide hole (41). A docking column (32) is fixedly installed on one side of the moving frame (31), and one end of the docking column (32) passes through the wall of the annular groove (12) and extends into the magnetic steel groove (11).

2. The motor rotor core fixing structure according to claim 1, characterized in that: Each locking assembly (3) includes two sliding rods (34), both ends of the sliding rods (34) are fixedly connected to the groove wall of the annular groove (12), and the moving frame (31) is sleeved on the surface of the sliding rods (34).

3. The motor rotor core fixing structure according to claim 1, characterized in that: A docking groove (21) is provided on one side of the magnetic steel (2), and the docking groove (21) matches the docking column (32).

4. The motor rotor core fixing structure according to claim 1, characterized in that: A guide column (13) is fixedly mounted on the bottom of the annular groove (12); a guide hole (42) is provided on the rotating ring (4); and the guide column (13) is located in the guide hole (42).

5. The motor rotor core fixing structure according to claim 1, characterized in that: A built-in groove (43) is provided on the top of the rotating ring (4), a toggle block (44) is provided in the built-in groove (43), a positioning column (45) is fixedly installed on one side of the toggle block (44), one end of the positioning column (45) passes through the groove wall of the built-in groove (43) and extends into the guide hole (42), a fixed cylinder (46) is provided on the other side of the toggle block (44), the fixed cylinder (46) is fixedly connected to the groove wall of the built-in groove (43), a movable rod (47) is slidably installed inside the fixed cylinder (46), and one end of the movable rod (47) is fixedly connected to the other side of the toggle block (44).

6. The motor rotor core fixing structure according to claim 5, characterized in that: A compression spring (48) is sleeved on the surface of the movable rod (47), one end of the compression spring (48) is fixedly connected to the side of the toggle block (44) away from the positioning column (45), and the other end of the compression spring (48) is fixedly connected to the side of the fixed tube (46) toward the toggle block (44). A positioning groove (14) is opened on the surface of the guide column (13), and the positioning column (45) matches the positioning groove (14).

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