A generator rotor insulation protection device
By introducing a cooling chip and an anti-vibration protection mechanism into the generator rotor, the heat dissipation and vibration problems are solved, the stability and lifespan of the insulation layer are extended, and the long-term efficient operation of the generator is ensured.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DATANG GUIZHOU FAER POWER GENERATION
- Filing Date
- 2025-07-28
- Publication Date
- 2026-07-17
Smart Images
Figure CN224520809U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of generator rotor protection technology, and in particular to a generator rotor insulation protection device. Background Technology
[0002] The generator rotor insulation protection device is a device used to protect the insulation of the generator rotor. It consists of the rotor windings, conductive connection parts and metal structure, with insulating sleeves, protective pads and sealing components installed to cover the position where the rotor contacts the shaft. This is to prevent external mechanical friction and contaminant corrosion from damaging the insulation layer, while reducing the impact of stray currents on the rotor and maintaining the integrity of the rotor and the electrical insulation performance of the insulation layer.
[0003] The main function of this protection device is to ensure the safe and stable operation of the generator rotor. It can isolate the rotor windings, conductive parts from the iron core and shaft, prevent short circuit faults caused by random currents, and reduce mechanical wear, vibration impact, and erosion of the insulation layer by dust, water vapor, and oil contaminants by providing protection for the insulation layer. This extends the service life of the rotor, reduces the probability of generator downtime and maintenance costs caused by rotor problems, and ensures that the generator can continuously and stably output electrical energy.
[0004] However, the rotor insulation protection devices for power plant generators on the market have certain shortcomings. In terms of heat dissipation, the heat dissipation effect of existing protection devices is poor. Most of them only use simple fan cooling methods. This cooling method is difficult to dissipate the heat generated during rotor operation quickly and effectively, which leads to the accumulation and rise of internal rotor temperature. Higher temperatures will accelerate the aging process of insulation materials, making the performance of the insulation layer deteriorate faster, shortening the service life of the insulation layer, affecting the protection effect of the protection device on the rotor insulation layer, and making it difficult to meet the requirements of long-term high-efficiency operation of generators. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a generator rotor insulation protection device, which aims to improve the problem of poor heat dissipation effect in existing technologies on the market, leading to a rapid decline in insulation performance.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a generator rotor insulation protection device, comprising a generator housing, a central rotating shaft disposed inside the generator housing, a heat dissipation and insulation mechanism disposed in the middle of the central rotating shaft, the heat dissipation and insulation mechanism being used for insulation protection and heat dissipation of the generator rotor, and anti-vibration protection mechanisms disposed on both the left and right sides of the outer wall of the central rotating shaft, the two anti-vibration protection mechanisms being used to reduce the slight vibrations generated by the generator rotor;
[0007] The heat dissipation and insulation mechanism includes an insulating shaft core, which is rotatably connected to the outside left side of the central shaft. Side insulating sheets are fixedly connected to both the left and right sides of the outer wall of the insulating shaft core. The same rotor wire-locking groove is provided on the adjacent side of the two side insulating sheets. The inside of the rotor wire-locking groove is fixedly connected to the outside center of the insulating shaft core. Multiple surrounding insulating sheets are fixedly connected to the outer wall of the rotor wire-locking groove. A cooling core is fixedly connected to the inside of the central shaft. A wireless power supply component is provided on the right side of the cooling core.
[0008] As a further description of the above technical solution:
[0009] The seismic protection mechanism includes an inner bearing, which is fixedly connected to the right side of the outer wall of the central rotating shaft. Multiple bearing cores are rotatably connected to the outside of the inner bearing. The outer bearing is fixedly connected to the same outer bearing on the opposite side of each of the multiple bearing cores. Multiple seismic springs are fixedly connected to the outside of the outer bearing. The outer support column is fixedly connected to the opposite side of each of the multiple seismic springs.
[0010] As a further description of the above technical solution:
[0011] The wireless power supply assembly includes a left connecting ring, the left side of which is fixedly connected to the right side of the cooling core. A right power generating ring is provided on the right side of the left connecting ring, and a wireless power supply device is fixedly connected to the right side of the right power generating ring. A wireless power supply support column is fixedly connected to the bottom of the wireless power supply device.
[0012] As a further description of the above technical solution:
[0013] Multiple stator frames are fixedly connected inside the generator housing, and multiple stator windings are fixedly connected inside each of the multiple stator frames.
[0014] As a further description of the above technical solution:
[0015] A right rotating disk is fixedly connected to the outer right side of the central rotating shaft, and a left rotating disk is provided on the left side of the right rotating disk.
[0016] As a further description of the above technical solution:
[0017] A brush holder is provided on the left side of the generator housing. Multiple brush contact rods are fixedly connected to the bottom of the brush holder, and two brush output lines are fixedly connected to the top of the brush holder.
[0018] As a further description of the above technical solution:
[0019] The bottom of the generator housing is fixedly connected to two bottom support columns, and two support column reinforcing ribs are fixedly connected to the opposite sides of the two central rotating shafts. The bottom of the two central rotating shafts is threaded with two fixing bolts.
[0020] As a further description of the above technical solution:
[0021] A fan connecting shaft is fixedly connected to the outer left side of the central rotating shaft, and multiple fan blades are fixedly connected to the outer side of the fan connecting shaft.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, a cooling chip is fixedly connected inside the central shaft of the generator, which can cool the central shaft and reduce the temperature of the shaft and surrounding area. Since the heat generated by the generator rotor during operation is easily transferred to the insulation layer through the shaft, and high temperature is an important factor that accelerates the aging of insulation materials, this structure controls the shaft temperature through active cooling, avoids the insulation layer from being in a high-temperature environment for a long time, slows down the aging rate of the insulation layer, extends its service life, and ensures the stability of the rotor insulation performance.
[0024] 2. In this utility model, anti-vibration mechanisms are provided on both the left and right sides of the generator's central shaft. The elastic buffering effect of multiple anti-vibration springs is used to reduce the slight vibrations generated during the high-speed rotation of the generator rotor. The vibration of the rotor can cause cracks in the insulation layer and surrounding components. The anti-vibration mechanism can reduce the intensity of vibration transmitted to the insulation layer, reduce the mechanical damage to the insulation layer caused by vibration, enhance the overall stability of the rotor operation, reduce the linkage loss of other components caused by vibration, and further improve the protection effect on the insulation layer. Attached Figure Description
[0025] Figure 1 This is a perspective view of a generator rotor insulation protection device proposed in this utility model;
[0026] Figure 2 This is a cross-sectional view of a generator rotor insulation protection device proposed in this utility model;
[0027] Figure 3 This is a schematic diagram of the heat dissipation and insulation mechanism in a generator rotor insulation protection device proposed in this utility model;
[0028] Figure 4 This is a schematic diagram of the anti-seismic protection structure in a generator rotor insulation protection device proposed in this utility model;
[0029] Figure 5 This is a structural exploded view of the heat dissipation and insulation mechanism in a generator rotor insulation protection device proposed in this utility model.
[0030] Legend:
[0031] 1. Generator housing; 2. Central shaft; 3. Heat dissipation and insulation mechanism; 31. Insulating shaft core; 32. Side insulating sheet; 33. Rotor wire clamping groove; 34. Surrounding insulating sheet; 35. Cooling core; 36. Wireless power supply assembly; 361. Left connecting ring; 362. Right generating ring; 363. Wireless power supply unit; 364. Wireless power supply support column; 4. Anti-vibration protection mechanism; 41. Inner bearing; 42. Bearing core; 43. Outer bearing; 44. Anti-vibration spring; 45. Outer support column; 5. Stator frame; 6. Stator winding; 7. Right rotating disk; 8. Left rotating disk; 9. Brush holder; 10. Brush contact rod; 11. Brush output wire; 12. Bottom support column; 13. Support column reinforcing rib; 14. Fixing bolt; 15. Fan connecting shaft; 16. Fan blade. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.
[0033] Reference Figure 1 , Figure 2 and Figure 3 An embodiment of this utility model is provided: a generator rotor insulation protection device, including a generator housing 1, a central rotating shaft 2 is provided inside the generator housing 1, a heat dissipation and insulation mechanism 3 is provided in the middle of the central rotating shaft 2, the heat dissipation and insulation mechanism 3 is used for insulation protection and heat dissipation of the generator rotor, and anti-vibration protection mechanisms 4 are provided on the left and right sides of the outer wall of the central rotating shaft 2, the two anti-vibration protection mechanisms 4 are used to reduce the weak vibrations generated by the generator rotor.
[0034] The heat dissipation and insulation mechanism 3 includes an insulating shaft core 31, which is rotatably connected to the outside left side of the central rotating shaft 2. Side insulating sheets 32 are fixedly connected to both the left and right sides of the outer wall of the insulating shaft core 31. The same rotor wire-locking groove 33 is provided on the adjacent side of the two side insulating sheets 32. The inside of the rotor wire-locking groove 33 is fixedly connected to the outside center of the insulating shaft core 31. Multiple surrounding insulating sheets 34 are fixedly connected to the outer wall of the rotor wire-locking groove 33. A cooling core 35 is fixedly connected to the inside of the central rotating shaft 2. A wireless power supply component 36 is provided on the right side of the cooling core 35.
[0035] Specifically, in the heat dissipation and insulation mechanism 3, the insulating shaft core 31 is rotatably connected to the outer left side of the central rotating shaft 2, providing an installation base for the entire heat dissipation and insulation mechanism 3. Its own insulation characteristics can prevent electrical conduction between the central rotating shaft 2 and external components. The two side insulating plates 32 are respectively fixedly connected to the left and right sides of the outer wall of the insulating shaft core 31, and provide insulation and isolation to the rotor wire slot 33 and the internal rotor winding from both sides to prevent short circuit between the winding and external metal components.
[0036] The rotor winding slot 33 is fixedly connected to the outer center of the insulating shaft core 31 to accommodate and fix the rotor winding. Multiple surrounding insulating sheets 34 are fixedly connected to its outer wall and distributed circumferentially to further enhance the insulation effect between the winding and the surrounding environment and avoid electrical interference between the winding and other components. The cooling core 35 fixedly connected inside the central shaft 2 can directly absorb the heat of the central shaft 2 during operation and reduce the temperature of the central shaft 2 through cooling, thereby reducing the heat transfer to the insulating components such as the insulating shaft core 31, side insulating sheets 32, and surrounding insulating sheets 34, and delaying the aging of these insulating components.
[0037] The wireless power supply component 36 on the right side of the cooling core 35 provides power support for the cooling core 35, ensuring that the cooling core 35 can work continuously and stably and maintain a good cooling effect; the anti-vibration protection mechanism 4 is installed on the left and right sides of the outer wall of the central rotating shaft 2. When the central rotating shaft 2 vibrates with the rotation of the rotor, the multiple anti-vibration springs 44 inside absorb the vibration energy through their own elastic deformation, reduce the impact of vibration on the central rotating shaft 2 and the heat dissipation and insulation mechanism 3 connected to it, and reduce the cracks in the insulation components caused by vibration.
[0038] The insulating core 31, the side insulating sheet 32, and the surrounding insulating sheet 34 together form a multi-layer insulation structure, which isolates the rotor winding from the central shaft 2 and the external metal parts, preventing current leakage and short circuits. The rotor wire clamping groove 33, through physical fixing, prevents the winding from shifting due to centrifugal force during rotor rotation, avoiding frictional damage between the winding and the insulating parts.
[0039] The cooling core 35 works in conjunction with the wireless power supply component 36 to form a continuous active cooling system. Combined with the heat insulation effect of the multi-layer insulation structure, it effectively controls the working temperature of the insulation components. The anti-vibration protection mechanism 4 works in conjunction with the heat dissipation insulation mechanism 3 to reduce the damage of vibration to the entire insulation system while achieving insulation protection and heat dissipation, thus ensuring the integrity and stability of the generator rotor insulation layer.
[0040] Reference Figure 1 , Figure 2 and Figure 4The seismic protection mechanism 4 includes an inner bearing 41, which is fixedly connected to the right side of the outer wall of the central rotating shaft 2. Multiple bearing cores 42 are rotatably connected to the outside of the inner bearing 41. The same outer bearing 43 is rotatably connected to the opposite side of the multiple bearing cores 42. Multiple seismic springs 44 are fixedly connected to the outside of the outer bearing 43. The same outer support column 45 is fixedly connected to the opposite side of the multiple seismic springs 44.
[0041] Specifically, the heat dissipation and insulation mechanism 3 includes an insulating shaft core 31, which is rotatably connected to the outside left side of the central rotating shaft 2. Side insulating sheets 32 are fixedly connected to both the left and right sides of the outer wall of the insulating shaft core 31. The same rotor wire-locking groove 33 is provided on the adjacent side of the two side insulating sheets 32. The inside of the rotor wire-locking groove 33 is fixedly connected to the outside center of the insulating shaft core 31. Multiple surrounding insulating sheets 34 are fixedly connected to the outer wall of the rotor wire-locking groove 33. A cooling core 35 is fixedly connected to the inside of the central rotating shaft 2. A wireless power supply component 36 is provided on the right side of the cooling core 35.
[0042] The insulating shaft core 31 is rotatably connected to the central rotating shaft 2, so that the rotation of the central rotating shaft 2 will not directly drive the insulating shaft core 31 to rotate synchronously, thus reducing the friction between the two; the side insulating sheet 32 is fixedly connected to the insulating shaft core 31, forming a surround on the rotor wire clamping groove 33 from the left and right sides, separating the winding in the rotor wire clamping groove 33 from the external structure; the rotor wire clamping groove 33 accommodates the winding through its own structure, and its fixed connection with the insulating shaft core 31 ensures that the winding will not shift position when the central rotating shaft 2 rotates; the surrounding insulating sheet 34 is fixedly connected to the rotor wire clamping groove 33 and distributed along the outer wall of the rotor wire clamping groove 33, further isolating the winding from external components;
[0043] The cooling core 35 is fixed inside the central rotating shaft 2 and directly contacts the central rotating shaft 2. When the wireless power supply component 36 provides power, it reduces the temperature of the central rotating shaft 2 through its own characteristics. The wireless power supply component 36 provides the cooling core 35 with the power required for its operation through cooperation with the cooling core 35. The anti-vibration protection mechanism 4 includes an inner bearing 41, which is fixedly connected to the right side of the outer wall of the central rotating shaft 2. Multiple bearing cores 42 are rotatably connected to the outside of the inner bearing 41. The same outer bearing 43 is rotatably connected to the opposite side of the multiple bearing cores 42. Multiple anti-vibration springs 44 are fixedly connected to the outside of the outer bearing 43. The same outer support column 45 is fixedly connected to the opposite side of the multiple anti-vibration springs 44.
[0044] The inner bearing 41 is fixedly connected to the central rotating shaft 2 internally and rotates together with the central rotating shaft 2. The bearing core 42 is rotatably connected to the inner bearing 41 and transmits the rotational force of the inner bearing 41 to the outer bearing 43, while allowing relative rotation between the inner bearing 41 and the outer bearing 43. The outer bearing 43 is rotatably connected to multiple bearing cores 42 and disperses the force transmitted by the bearing cores 42, while providing a fixed foundation for the anti-vibration spring 44. The anti-vibration spring 44 is fixedly connected to the outer bearing 43 and deforms when subjected to vibration transmitted by the outer bearing 43, converting vibration energy into elastic potential energy. The outer support column 45 is fixedly connected to multiple anti-vibration springs 44 and provides support for the anti-vibration springs 44, while fixing the other end of the anti-vibration springs 44 and limiting the deformation direction of the anti-vibration springs 44.
[0045] The insulating core 31, the side insulating sheet 32, and the surrounding insulating sheet 34 together form an insulating barrier to prevent current from flowing from the winding to the central shaft 2 and the generator housing 1; the rotor wire clamping groove 33 fixes the winding in a specific position to prevent the winding from moving due to the centrifugal force generated by the rotation of the central shaft 2, and reduces the friction between the winding and the insulating components; the cooling core 35 reduces the temperature of the central shaft 2 under the power supply of the wireless power supply component 36, reduces the heat transfer to the insulating components, and delays the aging of the insulating material;
[0046] The inner bearing 41, bearing core 42, and outer bearing 43 work together to prevent the rotation of the central shaft 2 from directly driving the outer support column 45. The anti-vibration spring 44 absorbs the vibration generated by the rotation of the central shaft 2 through deformation. The outer support column 45 fixes the anti-vibration spring 44 inside the generator housing 1, ensuring that the anti-vibration protection mechanism 4 functions stably. The heat dissipation and insulation mechanism 3 works in conjunction with the anti-vibration protection mechanism 4 to protect the insulation layer of the generator rotor from the aspects of insulation, heat dissipation, and vibration reduction, respectively, ensuring the normal operation of the generator.
[0047] Reference Figure 1 , Figure 2 and Figure 5The wireless power supply assembly 36 includes a left connecting ring 361, the left side of which is fixedly connected to the right side of the cooling core 35. A right power generating ring 362 is located on the right side of the left connecting ring 361. A wireless power supply unit 363 is fixedly connected to the right side of the right power generating ring 362. A wireless power supply support column 364 is fixedly connected to the bottom of the wireless power supply unit 363. Multiple stator frames 5 are fixedly connected inside the generator housing 1. Multiple stator windings 6 are fixedly connected inside each of the multiple stator frames 5. A right rotating disk 7 is fixedly connected to the right side of the outer side of the central rotating shaft 2. A right rotating disk 7 is located on the left side of the right rotating disk 7. A left rotating disk 8 is provided. A brush holder 9 is provided on the left side of the generator housing 1. Multiple brush contact rods 10 are fixedly connected to the bottom of the brush holder 9. Two brush output lines 11 are fixedly connected to the top of the brush holder 9. Two bottom support columns 12 are fixedly connected to the bottom of the generator housing 1. Two support column reinforcing ribs 13 are fixedly connected to the opposite side of the two central rotating shafts 2. Two fixing bolts 14 are threaded to the bottom of the two central rotating shafts 2. A fan connecting shaft 15 is fixedly connected to the outer left side of the central rotating shaft 2. Multiple fan blades 16 are fixedly connected to the outer side of the fan connecting shaft 15.
[0048] Specifically, the heat dissipation and insulation mechanism 3 includes an insulating shaft core 31, which is rotatably connected to the left side of the central shaft 2. Side insulating sheets 32 are fixedly connected to the left and right sides of its outer wall. The two side insulating sheets 32 are provided with the same rotor wire clamping groove 33 on adjacent sides. The rotor wire clamping groove 33 is fixed inside the center of the outer side of the insulating shaft core 31, and multiple surrounding insulating sheets 34 are fixed on the outer wall.
[0049] The cooling core 35 is fixed inside the central rotating shaft 2. A wireless power supply component 36 is provided on the right side of the cooling core 35. The wireless power supply component 36 includes a left connecting ring 361. The left side of the left connecting ring 361 is fixed to the right side of the cooling core 35. A right power generation ring 362 is provided on the right side. A wireless power supply 363 is fixed to the right side of the right power generation ring 362. A wireless power supply support column 364 is fixed at the bottom of the wireless power supply 363.
[0050] The seismic protection mechanism 4 includes an inner bearing 41, which is fixed inside the right side of the outer wall of the central rotating shaft 2. Multiple bearing cores 42 are rotatably connected to the outside. The multiple bearing cores 42 are rotatably connected to the same outer bearing 43 on opposite sides. Multiple anti-seismic springs 44 are fixed outside the outer bearing 43. The multiple anti-seismic springs 44 are fixed to the same outer support column 45 on opposite sides. Multiple stator frames 5 are fixed inside the generator housing 1. Multiple stator windings 6 are fixed inside the stator frames 5. A right rotating disk 7 is fixed to the right side of the central rotating shaft 2, and a left rotating disk 8 is provided on its left side.
[0051] A brush holder 9 is provided on the left side of the generator housing 1. Multiple brush contact rods 10 are fixed at the bottom of the brush holder 9, and two brush output wires 11 are fixed at the top. Two bottom support columns 12 are fixed at the bottom of the generator housing 1, and two support column reinforcing ribs 13 are fixed on the side of the central shaft 2 away from it. Two fixing bolts 14 are threadedly connected at the bottom. A fan connecting shaft 15 is fixed on the left side of the outside of the central shaft 2, and multiple fan blades 16 are fixed on its outside. An insulated shaft core 31 is rotatably connected to the central shaft 2, so that the central shaft 2 is relatively stable when it rotates.
[0052] The side insulating sheet 32 shields the rotor wire clamping groove 33; the rotor wire clamping groove 33 provides installation space for the winding; the surrounding insulating sheet 34 is distributed along the outer wall of the rotor wire clamping groove 33; the cooling core 35 is in direct contact with the central rotating shaft 2; the left connecting ring 361 transmits current to the cooling core 35; the right generating ring 362 cooperates with the left connecting ring 361 to transmit power; the wireless power supply 363 supplies power to the right generating ring 362; the wireless power supply support column 364 fixes the wireless power supply 363; the inner bearing 41 rotates synchronously with the central rotating shaft 2; the bearing core 42 connects the inner bearing 41 and the outer bearing 43.
[0053] The outer bearing 43 disperses the force transmitted from the bearing core 42; one end of the anti-vibration spring 44 is connected to the outer bearing 43; the outer support column 45 supports the anti-vibration spring 44; the stator frame 5 fixes the stator winding 6; the right rotating disk 7 rotates with the central rotating shaft 2; the left rotating disk 8 cooperates with the right rotating disk 7; the brush holder 9 provides an installation base for the brush contact rod 10.
[0054] The brush contact rod 10 contacts the conductive component on the central rotating shaft 2; the brush output line 11 conducts current; the bottom support column 12 supports the generator housing 1; the support column reinforcing rib 13 enhances the connection strength; the fixing bolt 14 strengthens the connection of the central rotating shaft 2; the fan connecting shaft 15 drives the fan blade 16 to rotate, promoting internal airflow.
[0055] The insulating core 31, side insulating sheet 32 and surrounding insulating sheet 34 form an insulating barrier; the rotor wire slot 33 restricts the winding displacement; the cooling core 35 reduces the temperature of the central shaft 2 under the action of the wireless power supply component 36; the anti-vibration protection mechanism 4 absorbs vibration through the cooperation of various components; the stator winding 6 cooperates with the rotor winding to generate electromagnetic induction; the various components work together to protect the rotor insulation layer, dissipate heat and ensure stable operation of the device.
[0056] Working principle: When the generator starts, the central shaft 2 begins to rotate. At this time, the insulating core 31 in the heat dissipation and insulation mechanism 3 is connected to the outside left side of the central shaft 2 due to internal rotation. It will not rotate synchronously with the central shaft 2, but will remain relatively stationary.
[0057] The side insulating plates 32 on the left and right sides of the outer wall of the insulating shaft core 31 remain stable with the insulating shaft core 31, shielding the rotor wire clamping groove 33 located on the adjacent side of the two side insulating plates 32. The rotor wire clamping groove 33 is fixed to the center of the outer side of the insulating shaft core 31. The rotor winding installed inside it will not be displaced when the central shaft 2 rotates due to the fixing effect of the rotor wire clamping groove 33. Multiple surrounding insulating plates 34 fixedly connected to the outer wall of the rotor wire clamping groove 33 surround the outside of the rotor winding, forming a multi-layer insulation structure together with the insulating shaft core 31 and the side insulating plates 32, isolating the rotor winding from the central shaft 2 and other metal parts. At the same time, the cooling core 35 fixedly connected inside the central shaft 2 rotates together with the central shaft 2. The wireless power supply component 36 on the right side of the cooling core 35 provides power to the cooling core 35, enabling the cooling core 35 to continuously cool the central shaft 2, reduce the temperature of the central shaft 2, and reduce the heat transfer to the insulating components of the insulating shaft core 31, side insulating plates 32, and surrounding insulating plates 34.
[0058] During the rotation of the central shaft 2, the anti-vibration protection mechanism 4 on the left and right sides of its outer wall begins to function. The inner bearing 41 is internally fixedly connected to the right side of the outer wall of the central shaft 2 and rotates synchronously with the central shaft 2. The multiple bearing cores 42 externally connected to the inner bearing 41 rotate with the inner bearing 41 and drive the externally connected outer bearing 43 to move. The multiple anti-vibration springs 44 externally fixedly connected to the outer bearing 43 deform when subjected to the vibration transmitted by the outer bearing 43, converting the energy generated by the vibration into elastic potential energy. The external support column 45 fixedly connected to the side away from the multiple anti-vibration springs 44 provides stable support for the anti-vibration springs 44 and limits the deformation direction of the anti-vibration springs 44, thereby reducing the transmission of the weak vibration generated by the rotation of the central shaft 2 to the insulating components.
[0059] As the generator continues to run, the rotational speed of the central shaft 2 remains stable. The multi-layer insulation structure in the heat dissipation and insulation mechanism 3 always isolates the rotor winding from other components to prevent short circuits. Under the continuous power supply of the wireless power supply component 36, the cooling core 35 continuously reduces the temperature of the central shaft 2, keeping the insulation components in a suitable temperature environment. The anti-vibration protection mechanism 4 continuously absorbs vibrations through the deformation of the anti-vibration spring 44, reducing the mechanical impact of vibrations on the insulation components and ensuring that the insulation components will not crack due to long-term vibration.
[0060] During the entire operation of the device, the insulation and heat dissipation functions of the heat dissipation and insulation mechanism 3 and the shock absorption function of the anti-vibration protection mechanism 4 work together to ensure that the rotor winding is always in a stable insulation, suitable temperature and low vibration environment, which ensures the integrity and electrical performance of the generator rotor insulation layer, extends the service life of the insulation layer, and improves the overall stability of the generator operation.
[0061] A multi-layer insulation structure is formed by the insulating shaft core 31, side insulating sheets 32, and surrounding insulating sheets 34, isolating the rotor winding from the central shaft 2 and other metal components, thus preventing damage to the insulation layer due to electrical conduction. The rotor wire clamping groove 33 fixes the rotor winding, preventing it from shifting and rubbing against the insulating components during rotation. The cooling core 35 cools the central shaft 2 under the power supply of the wireless power supply component 36, reducing the impact of heat on the insulating components. The anti-vibration protection mechanism 4, with its inner bearing 41, bearing core 42, outer bearing 43, anti-vibration spring 44, and outer support column 45 working together, absorbs the vibration generated by the rotation of the central shaft 2, reducing the impact of vibration on the insulating components, effectively protecting the generator rotor insulation layer, extending the service life of the insulation layer, and improving the generator's operational stability.
[0062] 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. An insulation protection device for a generator rotor, comprising a generator housing (1), characterized in that: The generator housing (1) is provided with a central rotating shaft (2) inside. A heat dissipation and insulation mechanism (3) is provided in the middle of the central rotating shaft (2). The heat dissipation and insulation mechanism (3) is used for insulation protection and heat dissipation of the generator rotor. The outer walls of the central rotating shaft (2) are provided with anti-vibration protection mechanisms (4) on both the left and right sides. The two anti-vibration protection mechanisms (4) are used to reduce the slight vibration generated by the generator rotor. The heat dissipation and insulation mechanism (3) includes an insulating shaft core (31), the interior of which is rotatably connected to the left side of the outer side of the central rotating shaft (2). Side insulating sheets (32) are fixedly connected to the left and right sides of the outer wall of the insulating shaft core (31). The same rotor wire-locking groove (33) is provided on the adjacent side of the two side insulating sheets (32). The interior of the rotor wire-locking groove (33) is fixedly connected to the center of the outer side of the insulating shaft core (31). Multiple surrounding insulating sheets (34) are fixedly connected to the outer wall of the rotor wire-locking groove (33). A cooling core (35) is fixedly connected to the interior of the central rotating shaft (2). A wireless power supply component (36) is provided on the right side of the cooling core (35).
2. An insulating protection device for a generator rotor according to claim 1, characterized in that: The seismic protection mechanism (4) includes an inner bearing (41), which is fixedly connected to the right side of the outer wall of the central rotating shaft (2). Multiple bearing cores (42) are rotatably connected to the outside of the inner bearing (41). The same outer bearing (43) is rotatably connected to the opposite side of the multiple bearing cores (42). Multiple anti-seismic springs (44) are fixedly connected to the outside of the outer bearing (43). The same outer support column (45) is fixedly connected to the opposite side of the multiple anti-seismic springs (44).
3. An insulating protector for a generator rotor as defined in claim 1, characterized in that: The wireless power supply assembly (36) includes a left connecting ring (361), the left side of which is fixedly connected to the right side of the cooling core (35). A right power supply ring (362) is provided on the right side of the left connecting ring (361), and a wireless power supply device (363) is fixedly connected to the right side of the right power supply ring (362). A wireless power supply support column (364) is fixedly connected to the bottom of the wireless power supply device (363).
4. An insulating protector for a generator rotor as defined in claim 1, characterized in that: Multiple stator frames (5) are fixedly connected inside the generator housing (1), and multiple stator windings (6) are fixedly connected inside each of the multiple stator frames (5).
5. A generator rotor insulation protection device according to claim 1, characterized in that: A right rotating disk (7) is fixedly connected to the outer right side of the central rotating shaft (2), and a left rotating disk (8) is provided on the left side of the right rotating disk (7).
6. An insulating protector for a generator rotor as defined in claim 1, characterized in that: A brush holder (9) is provided on the left side of the generator housing (1). Multiple brush contact rods (10) are fixedly connected to the bottom of the brush holder (9), and two brush output lines (11) are fixedly connected to the top of the brush holder (9).
7. An insulating protector for a generator rotor as defined in claim 1, characterized in that: The bottom of the generator housing (1) is fixedly connected to two bottom support columns (12), and the two central rotating shafts (2) are fixedly connected to two support column reinforcing ribs (13) on opposite sides. The bottom of the two central rotating shafts (2) is threadedly connected to two fixing bolts (14).
8. An insulating protector for a generator rotor as defined in claim 1, characterized in that: The outer left side of the central rotating shaft (2) is fixedly connected with a fan connecting shaft (15), and the outer side of the fan connecting shaft (15) is fixedly connected with a plurality of fan blades (16).