Dynamic sealing device for stator end insulator of high-efficiency generator

Abstract

The invention, which relates to the field of the energy-saving motor, discloses a dynamic sealing device for a stator end insulator of a high-efficiency generator, comprising a casing, one side of the casing is provided with an auxiliary shell, the middle of the inner side of the auxiliary shell is provided with a stator body, the exterior of the stator body is provided with an insulator body, and the insulator body is provided with a sealing ring. A rotor body is inserted in the middle of the inner side of the stator body, a bearing is arranged outside the other side of the rotor body, in the rotary sealing mechanism, the rotor body rotates to drive a plurality of guide rings to rotate, a long flat rod-shaped structure of the rotor body pushes an arc-shaped push piece, and the rotor body rotates to drive the guide rings to rotate. The spring is matched with the positioning piece, so that the sealing piece dynamically forms a closed structure along with the rotation of the rotor; and when the rotor stops rotating, the sealing piece retreats, the spring contracts, and the reserved gap dissipates heat, so that the sealing state is flexibly switched along with the rotor operation, and the requirements of different working stages are met.

Description

TECHNICAL FIELD

[0001] The present application relates to motor equipment, more particularly to the field of energy-saving motors, and particularly to a dynamic sealing device for the end insulation of a high-efficiency generator stator. BACKGROUND

[0002] During the operation of the generator, the insulation body outside the stator body needs to be dynamically sealed. The core reason is that the long-term high-speed rotation of the generator rotor body and the stator body will continuously generate heat, and the inside of the casing and the attached casing needs to be protected from external impurities. If a static sealing structure is used, the sealing state is fixed and unchanging. When the rotor is running, the static seal can block impurities, but it will close the gap between the casing and the insulation body, causing the heat generated by friction to be unable to effectively dissipate, and the accumulation of heat can accelerate the aging of the insulation, and even cause damage to the insulation layer. After the rotor stops, the static seal remains closed, and it is not possible to further dissipate heat during the shutdown interval. At the same time, long-term static compression can also cause deformation at the junction between the sealing member and the insulation body, reducing the reliability of the seal. The current common problem is that the sealing structure cannot be flexibly switched according to the running state of the rotor, and it is difficult to meet the dual requirements of "anti-pollution sealing during operation" and "heat dissipation during shutdown". In addition, static sealing is prone to heat accumulation or structural deformation, which shortens the service life of the insulation.

[0003] To improve the above problems, many methods propose to achieve sealing by fixing a sealing ring with an elastic gasket: an annular sealing ring is arranged at the connection between the casing and the attached casing, an elastic gasket is installed on the inner side of the sealing ring, and the elastic deformation of the gasket is used to tightly fit the sealing ring with the outer side of the insulation body. At the same time, micro heat dissipation holes are provided on the sealing ring to try to seal and dissipate heat at the same time. This method enhances the sealing fit by using an elastic gasket and relieves heat accumulation through micro heat dissipation holes, which to some extent solves the problem of heat dissipation caused by complete sealing of the static seal.

[0004] However, the sealing structure composed of a fixed sealing ring and an elastic gasket is essentially a semi-static seal. The diameter and position of the micro heat dissipation holes are fixed, and the heat dissipation efficiency cannot be dynamically adjusted according to the amount of heat generated during the operation of the rotor. When the rotor is running at high speed and the heat is increasing rapidly, the fixed-diameter heat dissipation holes cannot quickly exhaust the heat. When the rotor is running at low speed or stopped, the heat dissipation holes may become a channel for impurities to enter, and cannot achieve dynamic adaptation of "strengthening sealing and preventing impurities during operation, and expanding heat dissipation during shutdown". In addition, the elastic gasket is in a state of compression for a long time, which can cause elastic fatigue and reduce the sealing fit.

[0005] Therefore, in view of the existing deficiencies, a dynamic sealing device for the end insulation of a high-efficiency generator stator is proposed. SUMMARY

[0006] The high-efficiency generator stator end insulation dynamic sealing device aims to solve the problems in the background art.

[0007] To achieve the above object, the high-efficiency generator stator end insulation dynamic sealing device comprises a shell, an auxiliary shell is arranged on one side of the shell, a stator body is arranged at the middle of the inner side of the auxiliary shell, an insulation body is arranged on the outer side of the stator body, a rotor body is arranged at the middle of the inner side of the stator body, and a bearing is arranged on the outer side of the other side of the rotor body. A rotary sealing mechanism is arranged between the inner side of the auxiliary shell and the stator body. A steering driving mechanism is arranged on the outer side of the other side of the rotor body away from the auxiliary shell. A dynamic air extraction mechanism is arranged on the inner side of the shell close to the steering driving mechanism. A gas guide expansion mechanism is arranged on the outer side of the shell away from the auxiliary shell.

[0008] Further, the rotary sealing mechanism comprises a sealing sheet, a plurality of guide rings, a lodging groove, a positioning sheet, a spring, a connecting rod, and an arc-shaped pushing sheet, the inner side of the auxiliary shell is annularly provided with the lodging groove, the middle of one side of the inner side of the lodging groove is provided with the positioning sheet, the other side of the positioning sheet is provided with the spring, the other side of the spring is provided with the sealing sheet, the front side of the sealing sheet is provided with the connecting rod, and one end of the connecting rod is provided with the arc-shaped pushing sheet.

[0009] Further, the arc-shaped pushing sheet has an arc-shaped structure, and the arc-shaped pushing sheet and the connecting rod are fixedly connected.

[0010] Further, the rotation direction of the plurality of guide rings is the same as the rotation direction of the rotor body, the outer side of the plurality of guide rings is provided with a plurality of long and flat rod-shaped structures radially from the center point to the outer side, and one end of the long and flat rod-shaped structure of the plurality of guide rings is in mutual resistance with the inner side of the arc-shaped pushing sheet.

[0011] Further, the length of the sealing sheet is less than the height of the lodging groove, and the inner side of the lodging groove and the sealing sheet form a sliding structure.

[0012] Further, the steering driving structure comprises a gear ring, a sliding sheet tooth block, a guide sheet, a sliding groove, and a limiting stop ring sheet, the other side of the outer side of the shell is annularly provided with the sliding groove, the outer side of the sliding groove is provided with the limiting stop ring sheet, the inner side of the sliding groove is annularly and slidably provided with the sliding sheet, the back of the sliding sheet is provided with the gear ring, the guide sheet is arranged at the middle of the bottom of the plurality of guide rings, one end of the plurality of guide rings close to the gear ring is provided with the tooth block, and the sawtooth structure on the inner side of the gear ring and the sawtooth structure of the tooth block are in mutual engagement. The sliding sheet and the sliding groove form a sliding structure.

[0013] Further, the dynamic air extraction mechanism is provided with an air outlet pipe, a curved arm shaft rod, a push rod, a piston cylinder and an air suction pipe, the curved arm shaft rod is arranged annularly outside the gear ring, one end of the curved arm shaft rod is provided with the push rod, the push rod is externally sleeved with the piston cylinder, one side of the piston cylinder is provided with the air suction pipe, and one end of the piston cylinder is provided with the air outlet pipe.

[0014] Further, the rotation direction of one end of the curved arm shaft rod is the same as that of the gear ring, and the piston cylinder is fixedly connected with the inner side of the shell.

[0015] Further, the air guide expansion mechanism is provided with a gas nozzle, an air bag, an air guide disc, a cover and a gas storage groove, the cover is arranged on the side of the shell away from the auxiliary shell, the outer side of the cover is provided with the gas storage groove, the air guide disc is inserted into the inner side of the gas storage groove, the air bag is arranged at the center of the inner side of the air guide disc, the front of the air bag is provided with the gas nozzle, and the air bag and the gas nozzle are provided with a pressure valve.

[0016] Further, the inner side of the gas storage groove is connected with the air outlet pipe in a penetrating mode, and the inner side of the air guide disc is provided with a gas flow channel which is connected with the air bag.

[0017] Compared with the prior art, the present application has the following beneficial effects: 1. In the rotating sealing mechanism, the rotor body rotation drives the multiple guide rings to rotate, the long and flat rod-shaped structure pushes the arc-shaped push piece, the connecting rod makes the sealing piece rotate out of the habitat groove, the spring cooperates with the positioning piece to make the sealing piece rotate dynamically to form a closed structure, when the rotor stops rotating, the sealing piece retreats and the spring contracts, a reserved gap is left for heat dissipation, the sealing state is flexibly switched according to the rotor operation, the different working stage requirements are met, in addition, the dynamic sealing during the rotor operation can avoid heat accumulation caused by long-term sealing of static sealing, no additional energy is consumed for forced heat dissipation, when the rotor stops rotating, the reserved gap is used for natural heat dissipation, no special heat dissipation equipment needs to be started, the energy consumption of the heat dissipation link is reduced, and the flexible switching of the sealing state avoids the energy loss caused by invalid sealing, so that the energy is efficiently utilized from the aspects of heat dissipation and sealing adaptation; 2. In the steering driving structure, the multiple guide rings rotate to drive the gear ring to rotate through the guide piece and the tooth block, the tooth block and the gear ring have different tooth numbers, so that the gear ring rotates at a low speed, the gear ring drives the curved arm shaft rod to convert the rotary motion into the linear motion of the push rod, and the piston cylinder extracts the friction hot air in the shell and the auxiliary shell through the air suction pipe and discharges the hot air to the gas storage groove through the air outlet pipe, so that the internal heat accumulation is effectively reduced and the stable operation of the equipment is ensured. 3. The application is characterized in that the gas storage groove receives hot gas and introduces it into the gas guide disc to make the air bag expand and block the connection between the rotor and the external component, preventing water vapor and dust from entering, and when the hot gas is excessive, the pressure valve opens to discharge the gas, and the air bag returns to the initial state, realizing intermittent heat discharge, and when the outside is cold, the discharged hot gas can alleviate the temperature at the connection, maintain the normal rotating environment of the rotor, and improve the reliability and adaptability of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 Figure 1 is a schematic diagram of the overall appearance structure of the dynamic sealing device for the stator end insulation of the high-efficiency generator. Figure 2 Figure 2 is a schematic diagram of the overall assembly of the dynamic sealing device for the stator end insulation of the high-efficiency generator. Figure 3 Figure 3 is an external view of the rotary sealing mechanism of the dynamic sealing device for the stator end insulation of the high-efficiency generator. Figure 4 Figure 4 is an internal detail view of the rotary sealing mechanism of the dynamic sealing device for the stator end insulation of the high-efficiency generator. Figure 5 Figure 5 is a schematic diagram of the dynamic sealing device for the stator end insulation of the high-efficiency generator. Figure 3 Figure 6 is an enlarged structural schematic diagram of position A of the dynamic sealing device for the stator end insulation of the high-efficiency generator. Figure 6 Figure 7 is a schematic diagram of the dynamic air extraction mechanism of the dynamic sealing device for the stator end insulation of the high-efficiency generator. Figure 7 Figure 8 is an enlarged structural schematic diagram of position B of the dynamic sealing device for the stator end insulation of the high-efficiency generator. Figure 5 Figure 9 is an enlarged structural schematic diagram of position C of the dynamic sealing device for the stator end insulation of the high-efficiency generator. Figure 8 Figure 10 is a layout diagram of the gas guide expansion mechanism of the dynamic sealing device for the stator end insulation of the high-efficiency generator. Figure 5 Figure 11 is a detail view of the multi-branch guide ring structure of the dynamic sealing device for the stator end insulation of the high-efficiency generator. Figure 9 Figure 12 is a meshing diagram of the gear ring and tooth block of the dynamic sealing device for the stator end insulation of the high-efficiency generator. Figure 10 Figure 13 is a dynamic motion diagram of the sealing sheet of the dynamic sealing device for the stator end insulation of the high-efficiency generator. Figure 11 Figure 14 is an air bag expansion and exhaust diagram of the dynamic sealing device for the stator end insulation of the high-efficiency generator. Figure 12 Figure 13

[0019] ​​In the figure: 1, the shell; 2, the shell; 3, bearing; 4, rotor body; 5, jet nozzle; 6, air bag; 7, air guide disc; 8, cover; 9, insulating body; 10, sealing piece; 11, stator body; 12, multiple guide ring; 13, dwelling groove; 14, gear ring; 15, sliding piece; 16, tooth block; 17, guide piece; 18, air storage groove; 19, positioning piece; 20, air outlet pipe; 21, crank arm shaft; 22, push rod; 23, piston cylinder; 24, sliding groove; 25, limit ring; 26, spring; 27, connecting rod; 28, arc-shaped push piece; 29, air suction pipe. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0021] DETAILED DESCRIPTION: REFERENCE Figures 1 to 13 ; The preferred description of the present application is made below in combination with the drawings and the specific embodiments. The present embodiment solves the above problems by the following steps: Embodiment one: in this embodiment, reference is made to Figures 1 to 13 The generator of the present application belongs to electric power industry equipment, and provides a kind of high-efficiency generator stator end insulating part dynamic sealing device, including: shell 1, the one side of shell 1 is provided with shell 2, the middle of the inner side of shell 2 is provided with stator body 11, the outside of stator body 11 is provided with insulating body 9, the middle of the inner side of stator body 11 is inserted with rotor body 4, the outside of another side of rotor body 4 is provided with bearing 3; rotary sealing mechanism is arranged between the inner side of shell 2 and stator body 11; rotor body 4 is provided with steering drive mechanism on the side away from the outside of shell 2; dynamic air extraction mechanism is arranged on the inner side of shell 1 close to steering drive mechanism; air guide expansion mechanism is arranged on the side away from the outside of shell 2; Wherein, first, insulating body 9 is sleeved on the outside of stator body 11, while the outside of insulating body 9 is clamped on the inner side of shell 2, when stator body 11 and rotor body 4 work on the inner side of shell 2, rotor body 4 rotates in stator body 11, another side of rotor body 4 is connected with external load, and bearing 3 helps external load to be connected with rotor body 4, when rotor body 4 starts to rotate, rotor body 4 will drive external load to rotate.

[0022] In this embodiment, with reference to Figures 1 to 13 The generator of the present application belongs to the power industry equipment, and provides a dynamic sealing device for the end part of the stator of a high-efficiency generator. The rotary sealing mechanism comprises a sealing sheet 10, a plurality of guide rings 12, a lodging groove 13, a positioning sheet 19, a spring 26, a connecting rod 27, and an arc-shaped pushing sheet 28. The lodging groove 13 is arranged on the inner side of the auxiliary shell 2. The positioning sheet 19 is arranged at the middle of one side of the inner side of the lodging groove 13. The spring 26 is arranged on the other side of the positioning sheet 19. The sealing sheet 10 is arranged on the other side of the spring 26. The connecting rod 27 is arranged on the front side of the sealing sheet 10. The arc-shaped pushing sheet 28 is arranged at one end of the connecting rod 27. The arc-shaped pushing sheet 28 has an arc-shaped structure. The arc-shaped pushing sheet 28 is fixedly connected with the connecting rod 27. The plurality of guide rings 12 rotate in the same direction as the rotor body 4. A plurality of long and flat rod-shaped structures are radially arranged on the outer side of the plurality of guide rings 12 from the center point. One end of the long and flat rod-shaped structure of the plurality of guide rings 12 abuts against the inner side of the arc-shaped pushing sheet 28. The length of the sealing sheet 10 is less than the height of the lodging groove 13. The inner side of the lodging groove 13 and the sealing sheet 10 form a sliding structure. When the rotor body 4 starts to rotate, the rotor body 4 drives the plurality of guide rings 12 to rotate. The long and flat rod-shaped structures on the outer side of the plurality of guide rings 12 push the arc-shaped pushing sheet 28 during rotation. The arc-shaped pushing sheet 28 is driven to rotate the connecting rod 27, and the connecting rod 27 drives the sealing sheet 10 to rotate out of the inner side of the lodging groove 13. The long and flat rod-shaped structures of the plurality of guide rings 12 continuously abut against the inner side of the arc-shaped pushing sheet 28. The inner side of the arc-shaped pushing sheet 28 has an arc-shaped structure. Therefore, after the long and flat rod-shaped structures of the plurality of guide rings 12 push the arc-shaped pushing sheet 28 on the outer side, the plurality of guide rings 12 continue to rotate to abut against the inner side of the next arc-shaped pushing sheet 28. When the sealing sheet 10 rotates out of the inner side of the lodging groove 13, the spring 26 at the rear end of the sealing sheet 10 starts to extend. The positioning sheet 19 fixes one end of the spring 26 at one side of the inner side of the lodging groove 13, so that the sealing sheet 10 can only rotate out in one direction. Therefore, when the rotor body 4 normally rotates, the sealing sheet 10 is pushed out by the plurality of guide rings 12 rotating with the rotor body 4, so that the sealing sheet 10 forms a dynamic sealing structure with the insulation body 9 and the shell 1. When the rotor body 4 does not rotate, the sealing sheet 10 only exists in the lodging groove 13, and the spring 26 remains in a contracted state. Therefore, a gap is reserved between the shell 1 and the insulation body 9, so as to facilitate the circulation of heat generated by the friction between the rotor body 4 and the stator body 11.

[0023] In this embodiment, with reference to Figures 1 to 13The generator of the present application belongs to the electric power industry equipment, and provides a dynamic sealing device for the stator end insulation part of a high-efficiency generator, and the turning driving structure is composed of a gear ring 14, a sliding sheet 15, a tooth block 16, a guide sheet 17, a sliding groove 24, and a limiting stop ring 25; the other side of the outer part of the casing 1 is annularly provided with the sliding groove 24, the outer side of the sliding groove 24 is provided with the limiting stop ring 25, the inner side of the sliding groove 24 is annularly and slidably provided with the sliding sheet 15, the back of the sliding sheet 15 is provided with the gear ring 14, the guide sheet 17 is arranged at the middle of the bottom of the multi-branch guide ring 12, one end of the multi-branch guide ring 12 close to the gear ring 14 is provided with the tooth block 16, and the sawtooth structure of the inner side of the gear ring 14 is engaged with the sawtooth structure of the tooth block 16; the sliding sheet 15 and the sliding groove 24 form a sliding structure therebetween; The dynamic air extraction mechanism is composed of an air outlet pipe 20, a curved arm shaft 21, a push rod 22, a piston cylinder 23, and an air inlet pipe 29; the curved arm shaft 21 is annularly arranged at the outer side of the gear ring 14, one end of the curved arm shaft 21 is provided with the push rod 22, the push rod 22 is externally sleeved with the piston cylinder 23, one side of the outer part of the piston cylinder 23 is provided with the air inlet pipe 29, and one end of the outer part of the piston cylinder 23 is provided with the air outlet pipe 20; The rotation direction of one end of the curved arm shaft 21 is the same as that of the gear ring 14, and the piston cylinder 23 is fixedly connected with the inner side of the casing 1; When the multi-branch guide ring 12 rotates along with the rotor body 4, the multi-branch guide ring 12 drives the guide sheet 17 to rotate, the guide sheet 17 drives the tooth block 16 to rotate, the tooth block 16 drives the gear ring 14 to rotate when rotating, the tooth number of the sawtooth of the tooth block 16 is far less than that of the inner side of the gear ring 14, so when the tooth block 16 rotates along with the guide sheet 17, the gear ring 14 can only select a small number of turns after the tooth block 16 rotates a large number of turns; When the gear ring 14 rotates, the gear ring 14 at the rear end of the gear ring 14 will move around in the limiting stop ring 25 at the inner side of the cover 8, and the limiting stop ring 25 will prevent the sliding sheet 15 from being separated; When the gear ring 14 rotates, the gear ring 14 drives the curved arm shaft 21 to rotate, the curved arm shaft 21 converts the rotary motion into linear motion, one end of the curved arm shaft 21 drives the push rod 22 to perform the extraction and insertion motion in the piston cylinder 23, and the piston cylinder 23 absorbs the hot air in the casing 1 and the attached casing 2 through the air inlet pipe 29 when the push rod 22 moves, the hot air is generated by the rotary friction of the stator body 11 and the rotor body 4; In addition, the piston cylinder 23 discharges the absorbed hot air to the inner side of the gas storage groove 18 through the air outlet pipe 20, so as to reduce the hot air generated by the rotary friction of the stator body 11 and the rotor body 4.

[0024] In this embodiment, reference is made to Figures 1 to 13The generator of the present application belongs to electric power industry equipment, and provides a dynamic sealing device for the stator end insulation part of a high-efficiency generator, a gas guiding and expanding mechanism is provided with a gas nozzle 5, a gas bag 6, a gas guiding disc 7, a cover 8, and a gas storage groove 18, the cover 8 is arranged on the side of the casing 1 away from the auxiliary casing 2, the outer side of the cover 8 is provided with the gas storage groove 18, the gas guiding disc 7 is inserted into the inner side of the gas storage groove 18, the center of the inner side of the gas guiding disc 7 is provided with the gas bag 6, the front of the gas bag 6 is provided with the gas nozzle 5, and a pressure valve is arranged between the gas bag 6 and the gas nozzle 5; The inner side of the gas storage groove 18 is connected with the gas outlet pipe 20 in a penetrating mode, and the inner side of the gas guiding disc 7 is provided with a gas flow channel which is connected with the gas bag 6; When the hot gas is guided out of the gas outlet pipe 20 to the inner side of the gas storage groove 18, the hot gas is guided into the gas guiding disc 7, the hot gas is guided into the gas bag 6, the gas bag 6 starts to expand after receiving the gas, and the gas bag 6 blocks the connection between the other side of the rotor body 4 and the remaining components after expansion, so as to prevent the external water vapor from entering the connection between the cover 8 and the one side of the rotor body 4, and also prevent the dust from entering the connection between the cover 8 and the one side of the rotor body 4; When the storage value of the hot gas exceeds the storage capacity of the gas bag 6, the pressure valve between the gas bag 6 and the gas guiding disc 7 is opened, the hot gas is discharged from the gas guiding disc 7 after the pressure valve is opened, so that the gas bag 6 returns to the initial state after intermittent expansion, so that the heat stored in the casing 1 and the auxiliary casing 2 can be discharged to the outside intermittently, and when the external environment is cold, the hot gas sprayed by the gas guiding disc 7 can alleviate the temperature of the connection between the one side of the rotor body 4 and the external equipment, and ensure the normal rotation of the rotor body 4.

[0025] In this embodiment, reference is made to Figures 1 to 13 The generator of the present application belongs to electric power industry equipment, and provides a dynamic sealing device for the stator end insulation part of a high-efficiency generator, based on the cooperation of the rotary sealing mechanism and the dynamic air extraction mechanism, the insulation part body 9 can be protected and the service life can be prolonged, the rotary sealing mechanism is composed of a sealing sheet 10, a plurality of guide rings 12, a lodging groove 13, a positioning sheet 19, a spring 26, a connecting rod 27, and an arc-shaped push sheet 28, and the dynamic air extraction mechanism is composed of a gear ring 14, a sliding sheet 15, a tooth block 16, a guide sheet 17, a curved arm connecting rod 21, a push rod 22, a piston cylinder 23, a gas suction pipe 29, and a gas outlet pipe 20; When the rotary sealing mechanism is in operation, the rotor body 4 rotates, driving multiple guide rings 12 to rotate. The long, flat rod-shaped structure on the outside of the multiple guide rings 12 pushes the arc-shaped pusher plate 28, and through the connecting rod 27, the sealing plate 10 is rotated out from the residence groove 13. The spring 26 cooperates with the positioning plate 19 to allow the sealing plate 10 to dynamically form a sealed structure with the rotor rotation. When the rotor stops, the sealing plate 10 retracts and the spring 26 contracts, leaving a gap for heat dissipation between the housing 1 and the insulating body 9. This mode creates a relatively clean environment for the insulating body 9, effectively preventing external oil stains, metal debris and other impurities from intruding or contacting the insulating parts, which can easily cause the insulation layer to wear and short circuit. The dynamic sealing builds a strong protective barrier from a physical level. In the dynamic air extraction mechanism, the rotation of multiple guide rings 12 drives the toothed ring 14 to rotate via guide plates 17 and toothed blocks 16. Due to the difference in the number of teeth between the toothed blocks 16 and the toothed ring 14, the rotational speed of the toothed ring 14 is much lower than that of the rotor body 4. The toothed ring 14 drives the crank arm connecting rod 21 to convert the rotational motion into the linear motion of the push rod 22, so that the piston cylinder 23 extracts the frictional heat from the casing 1 and the auxiliary casing 2 through the suction pipe 29 and discharges it to the air storage tank 18 through the exhaust pipe 20. The heat contains ionized particles and oxidizing components, which accumulate over a long period of time and accelerate the aging of the insulating components. The air extraction circulation reduces their concentration. At the same time, the airflow micro-circulation formed by the air extraction can remove the weak heat generated on the surface of the insulating component body 9 due to electromagnetic induction, thus optimizing the working temperature environment. In addition, the two mechanisms work together in precise timing: when the sealing plate 10 is unscrewed to seal, the suction mechanism simultaneously increases the suction force, using the negative pressure of the sealed space to efficiently remove impurities and hot air; when the sealing plate 10 is retracted to leave a gap for heat dissipation, the suction mechanism reduces power to maintain basic circulation. From multiple dimensions such as physical protection, environmental purification, and temperature control, it delays the aging of the insulation component body 9, extends its service life, and reduces the maintenance cost and downtime risk of the generator due to insulation component failure. Example 6: In this example, refer to Figures 1 to 13 The generator of the present invention belongs to the power industry equipment and provides a dynamic sealing device for the stator end insulation of a high-efficiency generator. With the help of a steering drive mechanism, an air guide expansion mechanism and multi-component linkage, the dynamic balance optimization and energy consumption dynamic control of the rotor body can be realized. The steering drive mechanism is composed of a gear ring 14, a sliding vane 15, a gear block 16 and a guide plate 17. The air guide expansion mechanism is composed of a jet nozzle 5, an air bag 6, an air guide plate 7, a cover 8 and an air storage tank 18. In the steering drive structure, the plurality of guide rings 12 rotate with the rotor body 4, and the gear ring 14 is driven to rotate through the guide piece 17 and the tooth block 16. Due to the difference in the number of teeth between the tooth block 16 and the gear ring 14, the rotating speed of the gear ring 14 is much lower than that of the rotor body 4. The speed difference is converted through the curved arm connecting rod 21, and the push rod 22 is driven to form a periodic movement of fast pulling and slow pushing in the piston cylinder 23. When the push rod quickly pulls air, a short low-pressure area is formed inside the casing 1 and the auxiliary casing 2, which slightly adjusts the rotor body 4 to the low-pressure side, and the air flow pressure difference is used to assist the correction of the slight eccentricity of the rotor, and the dynamic balance is optimized. In this way, the additional vibration and energy consumption caused by the unbalance of the rotor are reduced. When the air bag 6 of the air guide expansion mechanism is filled with hot air and expanded, in addition to blocking the connection between the sealing cover 8 and the rotor body 4 to prevent impurities, the fit of the air bag 6 with one side of the rotor body 4 is dynamically adjusted according to the amount of hot air. If the rotor is temporarily eccentric due to load changes, the flexible resistance force generated by the expansion of the air bag 6 can be used as an auxiliary balancing means to offset part of the eccentric vibration by adjusting the expansion area and the force. At the same time, the air flow recoil force when the air bag 6 is exhausted forms a weak thrust in the tangential direction of the rotor rotation, which assists the acceleration / steady speed of the rotor and reduces the energy consumption of the driving motor to maintain the speed. In terms of energy consumption control, the air extraction power of the dynamic air extraction mechanism and the state of the air bag 6 of the air guide expansion mechanism are adjusted in real time according to the load of the generator: when the load is high, the friction between the rotor and the stator increases, and the amount of hot air is large. The air extraction mechanism operates at full load, quickly removes heat, and the air bag 6 expands and exhausts at high frequency to strengthen the dynamic balance assistance and heat dissipation. When the load is low, the air extraction power is reduced, and the air bag 6 maintains low-frequency expansion to reduce the energy consumption of the equipment itself. The intelligent adaptation of multiple mechanisms ensures stable operation while achieving dynamic optimization of energy consumption, improving energy utilization efficiency, and adapting to energy-saving needs in different working conditions.

[0026] Embodiments of the present application are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the application to the forms disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. Embodiments are chosen and described in order to best explain the principles of the application and its practical application, and to enable others skilled in the art to understand the application for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A dynamic sealing device for the stator end insulation of a high-efficiency generator, characterized in that, include: A housing (1) is provided with an auxiliary shell (2) on one side of the housing (1). A stator body (11) is provided in the middle of the inner side of the auxiliary shell (2). An insulating body (9) is provided on the outside of the stator body (11). A rotor body (4) is inserted in the middle of the inner side of the stator body (11). A bearing (3) is provided on the outside of the other side of the rotor body (4). A rotary sealing mechanism is provided between the inner side of the attached shell (2) and the stator body (11); A steering drive mechanism is provided on the side of the rotor body (4) away from the attached shell (2); A dynamic air extraction mechanism is provided on the inner side of the housing (1) near the steering drive mechanism; An air-guiding expansion mechanism is provided on the side of the outer casing (1) away from the attached casing (2).

2. The dynamic sealing device for the stator end insulation of a high-efficiency generator according to claim 1, characterized in that, The rotary sealing mechanism consists of a sealing plate (10), multiple guide rings (12), a colony groove (13), a positioning plate (19), a spring (26), a connecting rod (27), and an arc-shaped push plate (28). The colony groove (13) is arranged in a ring on the inner side of the attached shell (2). A positioning plate (19) is arranged in the middle of one side of the colony groove (13). A spring (26) is arranged on the other side of the positioning plate (19). A sealing plate (10) is arranged on the other side of the spring (26). A connecting rod (27) is arranged on the front side of the sealing plate (10). An arc-shaped push plate (28) is arranged at one end of the connecting rod (27).

3. The dynamic sealing device for the stator end insulation of a high-efficiency generator according to claim 2, characterized in that, The arc-shaped push plate (28) has an arc-shaped structure, and the arc-shaped push plate (28) is fixedly connected to the connecting rod (27).

4. The dynamic sealing device for the stator end insulation of a high-efficiency generator according to claim 2, characterized in that, The rotation direction of the multi-branch guide ring (12) is the same as that of the rotor body (4). Multiple long flat rod-shaped structures are arranged radiating outward from the center point on the outer side of the multi-branch guide ring (12). One end of the long flat rod-shaped structure of the multi-branch guide ring (12) abuts against the inner side of the arc-shaped push plate (28).

5. A dynamic sealing device for the stator end insulation of a high-efficiency generator according to claim 2, characterized in that, The length of the sealing plate (10) is less than the height of the inhabitant groove (13), and the inner side of the inhabitant groove (13) and the sealing plate (10) form a sliding structure.

6. The dynamic sealing device for the stator end insulation of a high-efficiency generator according to claim 1, characterized in that, The steering drive structure consists of a gear ring (14), a slide (15), a toothed block (16), a guide plate (17), a slide groove (24), and a limiting ring plate (25). The slide groove (24) is annularly opened on the other side of the outer casing (1). A limiting ring plate (25) is provided on the outer side of the slide groove (24). The slide plate (15) is slidably arranged annularly on the inner side of the slide groove (24). The gear ring (14) is provided on the back of the slide plate (15). The guide plate (17) is located in the middle of the bottom of the multiple guide rings (12). A toothed block (16) is provided at one end of the multiple guide rings (12) near the gear ring (14). The serrated structure on the inner side of the gear ring (14) meshes with the serrated structure of the toothed block (16). The slide plate (15) and the slide groove (24) form a sliding structure.

7. A dynamic sealing device for the stator end insulation of a high-efficiency generator according to claim 6, characterized in that, The dynamic air extraction mechanism consists of an air outlet pipe (20), a crank arm shaft (21), a push rod (22), a piston cylinder (23), and an air intake pipe (29). The crank arm shaft (21) is arranged in a ring on the outside of the gear ring (14). A push rod (22) is provided at one end of the crank arm shaft (21). A piston cylinder (23) is sleeved on the outside of the push rod (22). An air intake pipe (29) is provided on one side of the piston cylinder (23). An air outlet pipe (20) is provided at one end of the piston cylinder (23).

8. A dynamic sealing device for the stator end insulation of a high-efficiency generator according to claim 7, characterized in that, The rotation direction of one end of the crank arm shaft (21) is the same as the rotation direction of the gear ring (14), and the piston cylinder (23) is fixedly connected to the inner side of the housing (1).

9. A dynamic sealing device for the stator end insulation of a high-efficiency generator according to claim 1, characterized in that, The air expansion mechanism consists of a jet nozzle (5), an air bag (6), an air guide plate (7), a cover (8), and an air storage tank (18). The cover (8) is provided on the side of the housing (1) away from the auxiliary housing (2). An air storage tank (18) is provided on the outside of the cover (8). An air guide plate (7) is inserted into the inside of the air storage tank (18). An air bag (6) is provided at the center of the inside of the air guide plate (7). A jet nozzle (5) is provided on the front of the air bag (6). A pressure valve is provided between the air bag (6) and the jet nozzle (5).

10. A dynamic sealing device for the stator end insulation of a high-efficiency generator according to claim 9, characterized in that, The gas storage tank (18) is connected to the gas outlet pipe (20) through the gas storage tank (18). The gas flow channel is provided on the inner side of the gas guide plate (7), and the gas flow channel is connected to the air bag (6).

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