Powder feeding rotor positioning structure

Abstract

The utility model relates to the technical field of rotor positioning accessories, and discloses a powdering rotor positioning structure which comprises a positioning ring and a positioning sleeve installed at the rear end of the positioning ring, a positioning plate is installed in the positioning ring, sliding rods are movably connected to the four corners of the positioning plate in a penetrating mode, and a positioning rod is installed on the surface of one side of the positioning plate; a limiting mechanism is arranged on the front surface of the positioning ring and located above the sliding hole. According to the utility model, the motor shaft is sleeved with the positioning sleeve and the positioning ring, so that the rotor is limited, and displacement between the rotor and the motor shaft caused by vibration during operation of the motor is avoided; the positioning rod in the positioning ring extends into the hole of the motor shaft through the elastic force of the first spring, so that the positioning ring and the motor shaft are connected together, and the whole connecting structure enables the positioning ring and the positioning sleeve to be convenient to disassemble and maintain; the limiting plate in the limiting mechanism blocks the sliding block, so that the positioning rod can be stably clamped into the motor shaft and is not easy to move out of the motor shaft.

Description

Technical Field

[0001] The utility model relates to the technical field of rotor positioning accessories, in particular to a powder loading rotor positioning structure. Background Art

[0002] Powdering is one of the necessary steps in the rotor production process, that is, spraying insulating powder on the rotor surface to improve its insulation performance, ensure that the current can flow along the predetermined path, and avoid unnecessary current leakage or short circuit between the rotor and other components; the motor may be hit during use, which may cause the rotor to tend to move in the casing, thereby affecting the stability of the rotor rotation.

[0003] A Chinese patent discloses a rotor positioning device (authorization announcement number CN213906410U). The patented technology uses a limiter to limit the rotor, so that when the rotor has a tendency to move, the limiter will offset the displacement tendency of the rotor, thereby completing the limit of the rotor, reducing the possibility of the rotor moving in the housing, and improving the stability of the rotor when rotating in the housing;

[0004] However, it has certain disadvantages: its manual mentions that the limit block is installed on the outside of the motor shaft by means of a glue layer, hot melt or interference fit. After the rotor is powdered, a powder layer is formed on the part of the motor shaft close to the rotor. Therefore, this installation method makes the limit block contact with the powder layer, which is not firm. In addition, this installation method makes it difficult to disassemble the limit block and inconvenient for later maintenance. Utility Model Content

[0005] The purpose of the utility model is to provide a powder loading rotor positioning structure to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A powder loading rotor positioning structure comprises a positioning ring and a positioning sleeve installed at the rear end of the positioning ring, a sliding hole is provided on the front surface of the positioning ring, and a positioning plate is installed inside the positioning ring, sliding rods are movably penetrated and connected to the four corners of the positioning plate, and a positioning rod is installed on one side surface of the positioning plate, a first spring is installed on the other side surface of the positioning plate, and a sliding block is installed on the front surface of the positioning plate; a limiting mechanism is provided on the front surface of the positioning ring above the sliding hole.

[0008] As a further solution of the utility model: the limiting mechanism includes a limiting plate, a second spring is installed on the upper end of the limiting plate, a fixed block is installed on the upper end of the second spring, limiting blocks are installed on the left and right side surfaces of the limiting plate, and fixed plates are installed on the left and right sides of the limiting plate, and a limiting groove is provided on the side surface of the fixed plate close to the limiting plate.

[0009] As a further solution of the utility model: the positioning sleeve is a component made of insulating material.

[0010] As a further solution of the utility model: both ends of the sliding rod are installed on the inner surface of the positioning ring, the positioning rod moves through the inner surface of the positioning ring, one end of the first spring is installed on one side surface of the inner side of the positioning ring, and the sliding block is slidably connected to the inside of the sliding hole.

[0011] As a further solution of the present invention: the positioning rod is in the shape of a cylinder, and the number of the positioning rods is three.

[0012] As a further solution of the utility model: the rear ends of the fixing block and the fixing plate are both installed on the front surface of the positioning ring, and the limiting block is slidably connected to the inside of the limiting groove.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model limits the rotor by putting a positioning sleeve and a positioning ring on the outside of the motor shaft, thereby preventing the displacement between the rotor and the motor shaft caused by the vibration when the motor is running; the positioning rod in the positioning ring extends into the hole of the motor shaft through the elastic force of the first spring, thereby connecting the positioning ring and the motor shaft together, and the entire connection structure makes it easy to disassemble and maintain the positioning ring and the positioning sleeve; the limiting plate in the limiting mechanism blocks the slider, so that the positioning rod can be stably clamped in the motor shaft and is not easy to be displaced from the motor shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a powder loading rotor positioning structure;

[0016] Figure 2 It is a cross-sectional view of a positioning ring in a powder loading rotor positioning structure;

[0017] Figure 3 It is a structural schematic diagram of a limiting mechanism in a powder loading rotor positioning structure;

[0018] Figure 4 This is a schematic diagram of the actual installation and use of a powder loading rotor positioning structure.

[0019] In the figure: 1. positioning ring; 2. positioning sleeve; 3. sliding hole; 4. positioning plate; 5. sliding rod; 6. positioning rod; 7. first spring; 8. sliding block; 9. limiting mechanism; 10. limiting plate; 11. second spring; 12. fixing block; 13. limiting block; 14. fixing plate; 15. limiting groove; 16. motor shaft; 17. rotor. DETAILED DESCRIPTION

[0020] See also Figure 1and Figure 4 In the embodiment of the utility model, a powder loading rotor positioning structure includes a positioning ring 1 and a positioning sleeve 2 installed at the rear end of the positioning ring 1, and the positioning sleeve 2 is a component made of insulating material;

[0021] The material of the positioning sleeve 2 is preferably plastic, which is used to insulate the positioning sleeve 2 from the rotor 17;

[0022] The positioning ring 1 and the positioning sleeve 2 are both sleeved on the outside of the motor shaft 16. The positioning sleeve 2 fits the rotor 17 to position it, so as to prevent the rotor 17 from being displaced on the motor shaft 16. It is only necessary to sleeve the positioning ring 1 on one side of the rotor 17. Since a commutator is installed on the other side, the commutator positions the other side of the rotor 17.

[0023] exist Figure 1 , Figure 2 and Figure 4 Middle: A sliding hole 3 is provided on the front surface of the positioning ring 1, and a positioning plate 4 is installed inside the positioning ring 1. The four corners of the positioning plate 4 are movably penetrated and connected with sliding rods 5. Both ends of the sliding rods 5 are installed on the inner surface of the positioning ring 1. A positioning rod 6 is installed on one side surface of the positioning plate 4. The positioning rod 6 is in the shape of a cylinder, and there are three positioning rods 6. The positioning rod 6 movably penetrates the inner surface of the positioning ring 1. A first spring 7 is installed on the other side surface of the positioning plate 4. One end of the first spring 7 is installed on one side surface of the inner part of the positioning ring 1. A slider 8 is installed on the front surface of the positioning plate 4. The slider 8 is slidably connected to the inside of the sliding hole 3;

[0024] There is a hole on the motor shaft 16 that is adapted for the positioning rod 6. The positioning rod 6 extends into the hole in the motor shaft 16 through the elastic force of the first spring 7, connecting the positioning ring 1 to the motor shaft 16. The slider 8 is pushed outward to drive the positioning rod 6 to leave the inside of the motor shaft 16, so that the positioning ring 1 can be removed, making it convenient to maintain the positioning ring 1 and the positioning sleeve 2.

[0025] exist Figures 2 to 4 Middle: The front surface of the positioning ring 1 is located above the sliding hole 3 and a limiting mechanism 9 is arranged. The limiting mechanism 9 includes a limiting plate 10. A second spring 11 is installed on the upper end of the limiting plate 10. A fixing block 12 is installed on the upper end of the second spring 11. Limiting blocks 13 are installed on the left and right surfaces of the limiting plate 10, and fixing plates 14 are installed on the left and right sides of the limiting plate 10. The rear ends of the fixing blocks 12 and the fixing plates 14 are both installed on the front surface of the positioning ring 1. A limiting groove 15 is provided on the surface of the fixing plate 14 close to the limiting plate 10. The limiting block 13 is slidably connected inside the limiting groove 15.

[0026] The limiting plate 10 blocks the slider 8 through the elastic force of the second spring 11, so that the positioning rod 6 is not easily displaced from the hole of the motor shaft 16, thereby improving the connection stability between the positioning ring 1 and the motor shaft 16;

[0027] The limiting block 13 is a cube or a cuboid.

[0028] The working principle of the utility model is as follows: when in use, first put the positioning sleeve 2 on the outside of the motor shaft 16 and fit it to the rotor 17, then put the positioning ring 1 on the outside of the motor shaft 16 and fit it to the positioning sleeve 2, then move the limit plate 10 upward to compress the second spring 11, the first spring 7 will drive the positioning plate 4 to move in the direction of the motor shaft 16, the positioning rod 6 will be stuck in the hole of the motor shaft 16, then loosen the limit plate 10, and block the slider 8 through the limit plate 10, so that the positioning ring 1 is fixed to the outside of the motor shaft 16; when the positioning ring 1 and the positioning sleeve 2 need to be maintained, the staff can pull the limit plate 10 upward to stagger the slider 8, and at the same time pull the slider 8 outward to drive the positioning plate 4 to compress the first spring 7, thereby driving the positioning rod 6 to leave the inside of the motor shaft 16, so that the positioning ring 1 and the positioning sleeve 2 can be removed in turn.

[0029] What is described above 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 powder loading rotor positioning structure, comprising a positioning ring (1) and a positioning sleeve (2) mounted at the rear end of the positioning ring (1), characterized in that: The front surface of the positioning ring (1) is provided with a sliding hole (3), and a positioning plate (4) is installed inside the positioning ring (1); four corners of the positioning plate (4) are movably connected with sliding rods (5), and a positioning rod (6) is installed on one side surface of the positioning plate (4); a first spring (7) is installed on the other side surface of the positioning plate (4), and a sliding block (8) is installed on the front surface of the positioning plate (4); a limiting mechanism (9) is arranged on the front surface of the positioning ring (1) above the sliding hole (3).

2. A powder loading rotor positioning structure according to claim 1, characterized in that: The limiting mechanism (9) comprises a limiting plate (10), a second spring (11) is mounted on the upper end of the limiting plate (10), a fixing block (12) is mounted on the upper end of the second spring (11), limiting blocks (13) are mounted on both left and right surfaces of the limiting plate (10), and fixing plates (14) are mounted on both left and right sides of the limiting plate (10), and a limiting groove (15) is provided on a surface of one side of the fixing plate (14) close to the limiting plate (10).

3. The powder loading rotor positioning structure according to claim 1, characterized in that: The positioning sleeve (2) is a component made of insulating material.

4. The powder loading rotor positioning structure according to claim 1, characterized in that: Both ends of the slide rod (5) are mounted on the inner surface of the positioning ring (1), the positioning rod (6) movably penetrates the inner surface of the positioning ring (1), one end of the first spring (7) is mounted on one side surface of the inner surface of the positioning ring (1), and the slide block (8) is slidably connected to the inside of the slide hole (3).

5. A powder loading rotor positioning structure according to claim 4, characterized in that: The positioning rod (6) is in the shape of a cylinder, and there are three positioning rods (6).

6. A powder loading rotor positioning structure according to claim 2, characterized in that: The rear ends of the fixing block (12) and the fixing plate (14) are both mounted on the front surface of the positioning ring (1), and the limiting block (13) is slidably connected inside the limiting groove (15).

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