Rotor sheath

Abstract

The utility model relates to the technical field of rotor sheaths, and discloses a rotor sheath, which comprises a protective shell, auxiliary assemblies for improving the performance of a rotor are fixedly connected to the front and back of the interior of the protective shell, rotor machines are slidably connected to the upper and lower ends of the interior of the protective shell, and the left side of each rotor machine is fixedly connected with a connecting plate. A clamping block is fixedly connected to the left side of the connecting plate, a mounting plate is fixedly connected to the left side of the interior of the protective shell, two positioning shells are fixedly connected to the right side of the mounting plate, and springs are fixedly connected to the interiors of the two positioning shells. According to the utility model, accurate positioning is realized, the rotor can be ensured to be at the optimal working position, the magnetic field distribution of the motor is more reasonable, and the operation efficiency is improved. And in the aspect of protection, the rotor can be prevented from being invaded by external impact, dust and moisture, abrasion and corrosion are reduced, and the service life of the rotor and the motor is effectively prolonged.

Description

Technical Field

[0001] This utility model relates to the field of rotor sheath technology, and in particular to a rotor sheath. Background Technology

[0002] Rotor sleeves are primarily used to protect the rotor of a motor or generator. They prevent mechanical damage to the rotor windings, such as during high-speed rotation when centrifugal force is generated or when subjected to external impacts, and act to fix the windings in place. Simultaneously, they enhance the rotor's mechanical strength, enabling it to better withstand centrifugal forces. Furthermore, rotor sleeves improve electromagnetic performance and reduce magnetic field leakage. In addition, they prevent dust, moisture, and other harmful substances from contacting the windings, thereby extending the motor's service life.

[0003] In existing technologies, some rotor sleeves cause rotor misalignment during operation, leading to disordered motor magnetic field, reduced motor efficiency, vibration, noise, and even motor failure. Without protective functions, the rotor is susceptible to external impacts, such as collisions or foreign object intrusion, which can damage the rotor windings and core. Moreover, dust and moisture can easily corrode the rotor, accelerating component aging and wear, and greatly shortening the motor's service life. Therefore, a rotor sleeve is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a rotor sleeve, which aims to improve the problem of the inability to position and protect the rotor after installation in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A rotor sheath includes a protective shell. Auxiliary components for improving rotor performance are fixedly connected to the front and rear sides of the protective shell. A rotor is slidably connected to the upper and lower ends of the protective shell. A connecting plate is fixedly connected to the left side of the rotor, and a locking block is fixedly connected to the left side of the connecting plate. A mounting plate is fixedly connected to the left side of the protective shell, and two positioning shells are fixedly connected to the right side of the mounting plate. Springs are fixedly connected inside each of the two positioning shells, and ball catches are fixedly connected to the adjacent ends of the two springs.

[0007] As a further description of the above technical solution:

[0008] The auxiliary component includes two sound insulation layers, with the far ends of the two sound insulation layers respectively fixedly connected to the front and rear ends of the inner interior of the protective shell. The material of the sound insulation layers is sound-absorbing cotton.

[0009] As a further description of the above technical solution:

[0010] A damping layer is fixedly connected to one end of each of the two sound insulation layers, and the damping layer is made of nitrile rubber.

[0011] As a further description of the above technical solution:

[0012] A lubricating layer is fixedly connected to one end of each of the two damping layers, and the surface of the lubricating layer is sprayed with lithium-based grease.

[0013] As a further description of the above technical solution:

[0014] An insulating layer is fixedly connected to one end of each of the two lubricating layers, and the surface of the insulating layer is coated with epoxy insulating varnish.

[0015] As a further description of the above technical solution:

[0016] A reinforcing plate is fixedly connected to one end of each of the two insulating layers, and the reinforcing plate is made of aluminum alloy.

[0017] As a further description of the above technical solution:

[0018] Each of the two reinforcing plates has a slot at one of its adjacent ends, and the slot is rectangular in shape.

[0019] As a further description of the above technical solution:

[0020] The left side of the card block contacts the right side of the mounting plate, and the outer sides of the two card balls respectively engage with the two sides of the card block.

[0021] This utility model has the following beneficial effects:

[0022] In this invention, a connecting plate installed and fixed inside the protective shell allows the locking block to engage with the two locking balls at their closest points. Simultaneously, the material inside the protective shell protects the rotor, achieving precise positioning to ensure the rotor is in its optimal working position. This results in a more rational magnetic field distribution within the motor, improving operating efficiency. In terms of protection, it prevents the rotor from external impacts, dust, and moisture, reducing wear and corrosion and effectively extending the service life of both the rotor and the motor. Attached Figure Description

[0023] Figure 1 This is a three-dimensional schematic diagram of a rotor sheath proposed in this utility model;

[0024] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0025] Figure 3 This is a schematic diagram of the positioning shell of a rotor sheath proposed in this utility model;

[0026] Figure 4 This is a schematic diagram of the structure of a locking block for a rotor sheath proposed in this utility model.

[0027] Legend:

[0028] 1. Protective shell; 2. Sound insulation layer; 3. Damping layer; 4. Lubricating layer; 5. Insulation layer; 6. Reinforcing plate; 7. Slot; 8. Rotor; 9. Connecting plate; 10. Locking block; 11. Mounting plate; 12. Positioning shell; 13. Spring; 14. Ball catcher. Detailed Implementation

[0029] 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.

[0030] Reference Figures 1 to 3 This utility model provides an embodiment of a rotor sheath, including a protective shell 1. The core component, the protective shell 1, forms an overall protective frame. Auxiliary components for improving rotor performance are fixedly connected to both the front and rear ends of the protective shell 1. These auxiliary components include two sound-insulating layers 2. The sound-insulating layer 2, as the first layer of the auxiliary components, is made of sound-absorbing cotton, which effectively absorbs noise generated by the rotor's operation, reduces sound wave reflection, and creates a quiet environment for the equipment. The far ends of the two sound-insulating layers 2 are fixedly connected to the front and rear ends of the protective shell 1, respectively. The protective shell 1 can fix the sound-insulating layers 2. The material is sound-absorbing cotton, which can absorb sound volume. Damping layers 3 are fixedly connected to the adjacent ends of the two sound insulation layers 2. The material of the damping layer 3 is nitrile rubber. When the rotor vibrates, the damping characteristics of nitrile rubber cause the molecular chains to convert vibration energy into heat energy through friction and deformation, thereby stabilizing the rotor's operating state, suppressing vibration transmission, and preventing damage to components due to vibration. Lubricating layers 4 are fixedly connected to the adjacent ends of the two damping layers 3. The surface of the lubricating layer 4 is sprayed with lithium-based grease. During the rotor's operation, the lithium-based grease will form a high-quality oil film between the rotor and surrounding components.

[0031] An insulating layer 5 is fixedly connected to the adjacent ends of both lubrication layers 4. The surface of the insulating layer 5 is coated with epoxy insulating varnish. During motor operation, the epoxy insulating varnish plays a crucial role, effectively preventing current leakage and ensuring the electrical safety of the rotor. A reinforcing plate 6 is fixedly connected to the adjacent ends of both insulating layers 5. The reinforcing plate 6 is made of aluminum alloy, which has high strength and light weight, providing reliable mechanical support for the rotor. A rectangular slot 7 is carefully provided at the adjacent ends of both reinforcing plates 6, providing precise positioning and effective fixation for rotor installation (e.g., ...). Figures 1 to 3 (As shown).

[0032] Reference Figure 3 and Figure 4 The upper and lower ends of the protective shell 1 are slidably connected to a rotor machine 8. A connecting plate 9 is fixedly connected to the left side of the rotor machine 8, which can drive the connecting plate 9 to move. A locking block 10 is fixedly connected to the left side of the connecting plate 9, which can drive the locking block 10 during the movement of the connecting plate 9. An installation plate 11 is fixedly connected to the left side of the protective shell 1. The left side of the locking block 10 contacts the right side of the installation plate 11. The locking block 10 can increase stability and can also engage with subsequent workpieces. Two positioning shells 12 are fixedly connected to the right side of the installation plate 11. Springs 13 are fixedly connected inside each of the two positioning shells 12, which can fix the springs 13. A retaining ball 14 is fixedly connected to the adjacent end of each of the two springs 13, which can fix the subsequent workpieces. The outside of the two retaining balls 14 engages with the two sides of the locking block 10, which can fix the retaining balls 14 to the locking block 10, thereby enabling the rotor machine 8 to position the inside of the protective shell 1 (e.g., Figure 3 and Figure 4 (As shown).

[0033] Working principle: The protective shell 1, as the overall external protective structure, provides a basic protective framework for the internal components and rotor 8. The auxiliary components at its front and rear ends play a crucial role. First is the sound insulation layer 2, made of sound-absorbing cotton. When the motor generates noise, the sound-absorbing cotton can absorb the noise through its porous structure, reduce sound wave reflection, effectively reduce the outward transmission of noise, and create a relatively quiet environment for equipment operation.

[0034] The damping layer 3 inside the sound insulation layer 2 is made of nitrile rubber. When vibration occurs during the operation of the rotor machine 8, the nitrile rubber, with its good damping characteristics, dissipates the vibration energy into heat energy through friction and deformation between molecular chains, thereby suppressing the transmission of vibration, preventing damage to the rotor and other components due to excessive vibration, and ensuring the smooth operation of the rotor.

[0035] The lubrication layer 4 inside the damping layer 3 is coated with lithium-based grease. During operation of the rotor 8, the grease forms an oil film between the rotor and surrounding components, significantly reducing friction. For example, between the shaft of the rotor 8 and other contacting parts, the grease facilitates smoother relative movement, reduces wear, extends the service life of each component, and simultaneously reduces energy loss due to friction, improving motor efficiency.

[0036] The insulating layer 5 inside the lubrication layer 4 is coated with epoxy insulating varnish. When the motor is energized, the insulating varnish effectively prevents current leakage, ensuring the electrical safety of the rotor 8. Even under high-voltage conditions, it ensures good insulation between the rotor and other components, preventing equipment failure due to electrical short circuits.

[0037] The reinforcing plate 6 inside the insulation layer 5 is made of aluminum alloy, which has high strength and light weight. The aluminum alloy reinforcing plate 6 provides additional mechanical support for the rotor 8 and enhances the overall structural strength of the rotor sheath. When the rotor rotates at high speed and generates centrifugal force, the reinforcing plate 6 can withstand greater stress, preventing deformation of the protective shell 1 and internal components, and ensuring that the rotor 8 is always in a stable working position. The rectangular slot 7 it has can also provide positioning and fixing for the installation of the rotor 8.

[0038] The rotor 8 contacts the right side of the mounting plate 11 via the locking block 10 on the left side of the connecting plate 9, and engages with the locking ball 14 connected to the spring 13 inside the positioning shell 12, achieving rapid installation and precise positioning. This ensures that the rotor 8 is correctly installed inside the protective shell 1, enabling each functional component to function effectively and ensuring the stable operation of the entire rotor sheath system.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., 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 sheath, comprising a protective shell (1), characterized in that: The protective shell (1) has auxiliary components for improving the performance of the rotor fixedly connected to its front and rear ends. The upper and lower ends of the protective shell (1) are slidably connected to the rotor machine (8). The left side of the rotor machine (8) is fixedly connected to the connecting plate (9). The left side of the connecting plate (9) is fixedly connected to the locking block (10). The left side of the protective shell (1) is fixedly connected to the mounting plate (11). The right side of the mounting plate (11) is fixedly connected to two positioning shells (12). The inside of the two positioning shells (12) is fixedly connected to springs (13). The adjacent ends of the two springs (13) are fixedly connected to locking balls (14).

2. The rotor sheath according to claim 1, characterized in that: The auxiliary component includes two sound insulation layers (2), with the far ends of the two sound insulation layers (2) fixedly connected to the front and rear ends of the inner side of the protective shell (1), and the material of the sound insulation layer (2) is sound-absorbing cotton.

3. A rotor sheath according to claim 2, characterized in that: A damping layer (3) is fixedly connected to one end of each of the two sound insulation layers (2), and the damping layer (3) is made of nitrile rubber.

4. A rotor sheath according to claim 3, characterized in that: A lubricating layer (4) is fixedly connected to one end of each of the two damping layers (3), and the surface of the lubricating layer (4) is sprayed with lithium-based grease.

5. A rotor sheath according to claim 4, characterized in that: An insulating layer (5) is fixedly connected to one end of each of the two lubricating layers (4), and the surface of the insulating layer (5) is coated with epoxy insulating paint.

6. A rotor sheath according to claim 5, characterized in that: A reinforcing plate (6) is fixedly connected to one end of each of the two insulating layers (5), and the reinforcing plate (6) is made of aluminum alloy.

7. A rotor sheath according to claim 6, characterized in that: Both of the two reinforcing plates (6) have a slot (7) at one end of each other, and the slot (7) is rectangular in shape.

8. A rotor sheath according to claim 1, characterized in that: The left side of the locking block (10) is in contact with the right side of the mounting plate (11), and the outer sides of the two locking balls (14) are respectively engaged with the two sides of the locking block (10).

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