Laminated wind driven generator

Abstract

The invention relates to the field of wind driven generators, in particular to a laminated wind driven generator which comprises a generator body, and a rotating shaft of the generator body is fixedly sleeved with a heat conduction sleeve. The spring conduit is wound on the surface of the heat conduction sleeve; the annular oil conveying shell is fixedly connected with the end, close to the bearing, of the heat conduction sleeve. By arranging the spring guide pipe and the first pushing adjusting assembly, the first pushing adjusting assembly pushes and adjusts the annular oil discharging shell to move towards the annular oil conveying shell according to the temperature of the position, close to the bearing, of the rotating shaft when the temperature rises, the number of turns of the spring guide pipe in the area, close to the bearing, of the rotating shaft is increased, and therefore the contact area of the position is increased, and the heat dissipation effect is improved; and when the temperature is reduced, the spring guide pipe is reset, so that the influence on the lubricating grease performance or unnecessary thermal stress caused by over-low temperature of a bearing area due to over-cooling is avoided.

Description

Technical Field

[0001] The invention relates to the field of wind turbines, and in particular to a laminated wind turbine. Background Art

[0002] Wind turbines use natural wind to drive the blades to rotate, which in turn drives the gearbox. Finally, a coupling is installed between the gearbox and the generator set to transmit power, so that the generator set rotates and generates electricity. During the operation of the generator, the output shaft of the generator will continue to rotate at a high speed, causing the output shaft to heat up. If the output shaft is overheated for a long time, it will reduce the service life of the generator, so the output shaft needs to be cooled.

[0003] For example, the invention patent with publication number CN119483119B discloses an air-water cooler for a wind turbine, including a heat exchanger installed outside the nacelle of the wind turbine and a water jacket installed outside the generator. The water jacket is connected to the heat exchanger through a circulation pipe to form a circulation loop. A propeller is rotatably installed in the circulation pipe. The propeller is connected to the shaft of the generator. The shaft is driven to drive the propeller to rotate to realize the closed-loop circulation of the coolant in the circulation pipe.

[0004] Regarding the above cases, there are still the following deficiencies: During the operation of the wind turbine, the speed of the output shaft of the wind turbine is affected by the wind speed, so the heat generated in the bearing area is not constant. Sometimes it requires extremely strong cooling, and sometimes only moderate or weak cooling (overcooling can easily lead to too low a temperature in the bearing area, affecting the performance of the grease or causing unnecessary thermal stress); However, the existing method of cooling the output shaft through the water jacket is not convenient for centralized cooling of the abnormal temperature area of the output shaft (i.e., the position close to the bearing), which is likely to affect the service life of the generator.

[0005] Therefore, the present invention proposes a laminated wind turbine to solve the above problems. Summary of the invention

[0006] In order to achieve the above objectives, the technical solution adopted by the present invention is: a laminated wind turbine generator, comprising: A generator body, wherein a heat-conducting sleeve is fixedly sleeved on a rotating shaft of the generator body; A spring guide tube, wherein the spring guide tube is wound around the surface of the heat-conducting sleeve; An annular oil delivery shell, the annular oil delivery shell is fixedly connected to one end of the heat-conducting sleeve close to the bearing, the outer wall of the annular oil delivery shell is rotatably connected to a first annular sealing plate, the outer side of the first annular sealing plate is fixedly connected to an oil delivery pipe, and the oil delivery pipe is connected to an external oil pumping device; Annular oil drainage shell, the annular oil drainage shell is slidably inserted on the surface of the other end of the heat conduction sleeve, a second annular sealing plate is rotatably connected to the outer wall of the annular oil drainage shell, a drain pipe is fixedly connected to the outer wall of the second annular sealing plate, the drain pipe is connected to an external heat exchanger, and the external heat exchanger transports the cooled cold oil to an external oil pumping device to form a circulating oil circuit; The first pushing and adjusting component, the first pushing and adjusting component pushes and adjusts the movement of the annular oil drainage shell according to the temperature near the bearing of the rotating shaft, so as to adjust the position and pitch of the spring conduit.

[0007] Preferably, the first pushing and adjusting component includes: An outer annular sealing plate, one end of the outer annular sealing plate is fixedly connected to the side wall of the annular oil delivery shell; An inner annular sealing plate, one end of the inner annular sealing plate is fixedly connected to the side wall of the annular oil drainage shell, and the other end is slidably connected to the inner wall of the end of the outer annular sealing plate; A first rack, the first rack is fixedly connected to the side wall of the annular oil drainage shell; A first gear, the first gear is rotatably connected to the inner wall of the outer annular sealing plate, and the first gear meshes with the first rack; A rotation driving component, the rotation driving component drives the first gear to rotate according to the temperature near the bearing of the rotating shaft, so as to adjust the position and pitch of the spring conduit.

[0008] Preferably, the rotation driving component includes: A cylinder body, the cylinder body is fixedly connected to the heat conduction sleeve near the bearing, a piston is slidably sealed in the cylinder body, and an inert gas is filled between the cylinder body and the piston; A second rack, the second rack is fixedly connected to the top of the piston, a second gear is meshed on the side of the top of the second rack, and the second gear is rotatably connected to the side wall of the annular oil delivery shell; A first bevel gear, the first bevel gear is coaxially fixed with the second gear, a second bevel gear is meshed on the side of the first bevel gear, and the second bevel gear is coaxially fixed with the first gear.

[0009] Preferably, the radius of the first gear > the radius of the first bevel gear > the radius of the second gear > the radius of the second bevel gear.

[0010] Preferably, it further includes: An annular oil injection plate, one side of the annular oil injection plate close to the bearing is fixedly connected to the surface of the rotating shaft; Absorbent cotton, the absorbent cotton is arranged in the annular oil injection plate; An oil injection component, during the process of the reduction of the pitch of the spring conduit, the oil injection component injects the cold oil in the annular oil delivery shell into the absorbent cotton, and the absorbent cotton smears the cold oil onto the rotating shaft.

[0011] Preferably, the oil injection assembly includes: A partition plate fixedly connected inside the annular oil delivery shell to divide the inside of the annular oil delivery shell into a first chamber and a second chamber, and the oil delivery pipe is fixedly communicated with the first chamber; An annular compression plate hermetically and slidably connected inside the second chamber; Several oil injection pipes, one ends of the several oil injection pipes are fixedly connected to the side wall of the annular oil delivery shell in an annular array and communicated with the second chamber, and the other ends are fixedly connected to the annular oil injection plate. First one-way valves are arranged in the oil injection pipes; A communication pipe for communicating the first chamber and the second chamber, and a second one-way valve is arranged in the communication pipe; A second pushing and adjusting assembly, which is rotationally linked with the second gear to push and adjust the annular compression plate to move.

[0012] Preferably, the second pushing and adjusting assembly includes: A first pushing platform fixedly connected to the side wall of the annular compression plate, and a first guiding surface is provided at the end of the first pushing platform; A second pushing platform, a second guiding surface adapted to the first guiding surface is provided at the end of the second pushing platform. The second pushing platform is in sliding contact with the first pushing platform. The end of the second gear shaft penetrates through the partition plate into the second chamber and is fixedly connected to the second pushing platform; A return spring, and both ends of the return spring are fixedly connected to the side wall of the annular compression plate and the partition plate respectively.

[0013] Preferably, several channels are annularly and arrayedly opened in the annular oil injection plate. The oil injection pipes are communicated with the channels, and several oil holes are arrayedly opened in the channels for discharging cold oil into the oil absorbing cotton.

[0014] Compared with the prior art, the present invention has the following beneficial effects: By arranging the spring conduit and the first pushing and adjusting assembly, the first pushing and adjusting assembly moves the annular oil discharge shell towards the annular oil delivery shell according to the temperature near the bearing of the rotating shaft. When the temperature rises, the number of turns of the spring conduit in the area where the rotating shaft is close to the bearing is increased, thereby increasing the contact area at this place and improving the heat dissipation effect. When the temperature drops, the spring conduit is reset to avoid the temperature in the bearing area being too low due to excessive cold, which affects the performance of the grease or causes unnecessary thermal stress.

[0015] By arranging the cylinder body and the piston, the position and pitch of the spring conduit can be automatically adjusted with the change of temperature, without sensors, controllers or external power sources, and can still work normally in extreme environments.

[0016] In the present invention, by providing an annular oil injection plate and an oil absorption cotton, when the local temperature of the rotating shaft is abnormal, cold oil is injected through an oil injection pipe onto the oil absorption cotton inside the annular oil injection plate, and the cold oil is applied to the rotating shaft through the oil absorption cotton. On the one hand, a small amount of cold oil directly contacts the rotating shaft to reduce the temperature of the rotating shaft. On the other hand, lubrication is improved and friction is reduced, thereby reducing the heat generation amount.

[0017] In the present invention, by providing a channel and an oil hole, it is beneficial to make the cold oil uniformly adhere to the oil absorption cotton, so that the cold oil can be evenly distributed on the surface of the rotating shaft, improving the heat dissipation effect. Brief Description of the Drawings

[0018] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the connection between the rotating shaft and the heat conduction sleeve of the present invention; Figure 3 is a sectional view of the outer annular sealing plate and the inner annular sealing plate of the present invention; Figure 4 is Figure 3 the enlarged view at A in Figure 5 is a schematic diagram of the connection between the cylinder body, the piston and the second rack of the present invention; Figure 6 is a schematic diagram of the connection between the annular oil injection plate and the oil absorption cotton in the present invention.

[0019] In the figure: generator body 1, rotating shaft 101, bearing 102, heat conduction sleeve 2, spring conduit 3, annular oil delivery shell 4, partition 401, first chamber 402, second chamber 403, annular compression plate 404, first annular sealing plate 5, outer annular sealing plate 6, annular oil discharge shell 7, second annular sealing plate 8, inner annular sealing plate 9, cylinder body 10, piston 11, second rack 12, second gear 13, first bevel gear 14, second bevel gear 15, first gear 16, first rack 17, annular oil injection plate 18, channel 1801, oil hole 1802, oil absorption cotton 1803, oil injection pipe 19, communication pipe 20, first pushing platform 21, second pushing platform 22, return spring 23. Detailed Embodiments

[0020] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations.

[0021] As Figures 1 to 6 shown, a laminated wind turbine includes: A generator body 1, on which a heat conduction sleeve 2 is fixedly sleeved on the rotating shaft 101 of the generator body 1; A spring conduit 3, which is wound around the surface of the heat conduction sleeve 2; The annular oil delivery shell 4 is fixedly connected to one end of the heat-conducting sleeve 2 close to the bearing 102. The outer wall of the annular oil delivery shell 4 is rotatably connected to the first annular sealing plate 5. The outer side of the first annular sealing plate 5 is fixedly connected to an oil delivery pipe, and the oil delivery pipe is connected to an external oil pumping device; The annular oil drain shell 7 is slidably plugged into the other end surface of the heat-conducting sleeve 2. The outer wall of the annular oil drain shell 7 is rotatably connected to the second annular sealing plate 8. The outer wall of the second annular sealing plate 8 is fixedly connected to an oil drain pipe. The oil drain pipe is connected to an external heat exchanger. The external heat exchanger delivers the cooled cold oil to the external oil pumping equipment to form a circulating oil circuit. A first push and adjust component, which pushes and adjusts the annular oil drain housing 7 to move according to the temperature of the rotating shaft 101 near the bearing 102, so as to adjust the position and pitch of the spring guide tube 3; In the prior art, during the operation of a wind turbine, the speed of the output shaft of the wind turbine is affected by the wind speed, so the heat generated in the bearing area is not constant. Sometimes extremely strong cooling is required, and sometimes only moderate or weak cooling is required, which increases the difficulty of cooling the output shaft. It is not convenient to centrally cool the area with abnormal output shaft temperature, which easily affects the service life of the generator. This technical solution can solve the above problems. The specific operations are as follows: During the rotation of the shaft 101 of the generator body 1, cold oil is delivered to the annular oil delivery housing 4 through an external oil pumping device (such as an oil pump), and the cold oil enters from the oil inlet end of the spring guide tube 3 and moves along a spiral track to reduce the surface temperature of the heat-conducting guide tube, thereby reducing the surface temperature of the shaft 101; As the cold oil continues to move along the spring conduit 3, the temperature of the oil in the spring conduit 3 will continue to rise, and finally be discharged from the oil discharge end of the spring conduit 3 to the annular oil discharge shell 7, and the heated oil is transported to the external heat exchanger through the oil discharge pipe, and the heated oil is cooled by the heat exchanger, and then transported to the annular oil delivery shell 4 through the external oil pumping equipment, so as to form a complete circulating oil circuit; Since the rotation speed of the shaft 101 of the wind turbine is affected by the wind speed, the faster the rotation speed, the more likely it is that the frictional heat between the shaft 101 and the bearing 102 will not be dissipated in time, which may easily cause abnormal temperature in the area of the shaft 101 near the bearing 102; When the temperature of the area near the bearing 102 of the rotating shaft 101 is abnormal, the annular oil discharge shell 7 is pushed and adjusted to move toward the annular oil delivery shell 4 through the first push adjustment component, which increases the number of turns of the spring guide tube 3 in the area near the bearing 102 of the rotating shaft 101, thereby increasing the contact area there and improving the heat dissipation effect. On the other hand, the pitch is reduced to increase the flow resistance of the cold oil, which is conducive to prolonging the flow time of the cold oil in the hot spot area (increasing the retention time), so that there is more time to absorb the heat on the heat-conducting sleeve 2, further improving the heat dissipation effect. When the temperature in the area where the rotating shaft 101 is close to the bearing 102 returns to normal, through the first pushing and adjusting component, the adjusting annular oil drainage shell 7 is pushed away from the annular oil transmission shell 4, so that the spring conduit 3 is reset, avoiding that the overcooling easily causes the temperature in the bearing 102 area to be too low, affecting the performance of the grease or causing unnecessary thermal stress.

[0022] It should be noted that multiple stators are arranged in the generator body 1, and the stator has a non-core structure; Multiple rotor assemblies, the rotor assembly is composed of a yoke disk and a permanent magnet with a high energy product, and the yoke disk is integrally formed with the rotating shaft 101; Furthermore, The rotor assembly adopts a non-core structure, replacing the tooth-slot structure with a soft magnetic material as the core, avoiding the influence of the saturation characteristics of the soft magnetic material, solving the problem of cogging torque pulsation, eliminating eddy current loss, reducing the rotational pulsation of the generator, improving the efficiency of the generator, and at the same time reducing the size and weight of the generator body 1; Furthermore, the rotor assembly is a double-magnet structure with a magnetic focusing function, increasing the air-gap magnetic field density and reducing the magnetic leakage, enabling a higher power density and torque density. At the same time, a disk-type planar magnetic field is adopted, and through the multi-sheet superposition method of the stator and rotor, the power density and torque density of the generator are further improved.

[0023] As a further implementation scheme of the present invention, the first pushing and adjusting component includes: An outer annular sealing plate 6, one end of the outer annular sealing plate 6 is fixedly connected to the side wall of the annular oil transmission shell 4; An inner annular sealing plate 9, one end of the inner annular sealing plate 9 is fixedly connected to the side wall of the annular oil drainage shell 7, and the other end is slidably connected to the inner wall of the end of the outer annular sealing plate 6; A first rack 17, the first rack 17 is fixedly connected to the side wall of the annular oil drainage shell 7; A first gear 16, the first gear 16 is rotatably connected to the inner wall of the outer annular sealing plate 6, and the first gear 16 meshes with the first rack 17; A rotation driving component, the rotation driving component drives the first gear 16 to rotate according to the temperature at the position where the rotating shaft 101 is close to the bearing 102, so as to adjust the position and pitch of the spring conduit 3; The rotation driving component includes: A cylinder body 10, the cylinder body 10 is fixedly connected to the heat conduction sleeve 2 close to the bearing 102, a piston 11 is hermetically slid in the cylinder body 10, and an inert gas is filled between the cylinder body 10 and the piston 11; A second rack 12, the second rack 12 is fixedly connected to the top end of the piston 11, and a second gear 13 meshes with the side surface of the top end of the second rack 12, and the second gear 13 is rotatably connected to the side wall of the annular oil transmission shell 4; The first bevel gear 14 is coaxially fixed to the second gear 13. The second bevel gear 15 meshes with the side of the first bevel gear 14, and the second bevel gear 15 is coaxially fixed to the first gear 16; Specifically, by providing the cylinder body 10, the piston 11 and the second rack 12, when the local temperature of the rotating shaft 101 is abnormally high, the temperature at the corresponding position of the heat conduction sleeve 2 increases abnormally, causing the temperature of the inert gas in the cylinder body 10 to rise, and the air pressure in the cylinder body 10 to increase (due to the principle of thermal expansion and contraction). As a result, the piston 11 drives the second rack 12 to move towards the opening of the cylinder body 10. The second rack 12 drives the second gear 13 to rotate, thereby causing the first bevel gear 14 to rotate. Under the meshing action, the second bevel gear 15 rotates, and the first gear 16 rotates. The first gear 16 meshes with the first rack 17, driving the first rack 17 to move, causing the annular oil discharge housing 7 to drive the inner annular sealing plate 9 to move towards the annular oil delivery housing 4. On the one hand, the number of turns of the spring conduit 3 in the area of the rotating shaft 101 near the bearing 102 is increased, thereby increasing the contact area at this location and improving the heat dissipation effect. On the other hand, the pitch is reduced, increasing the flow resistance of the cold oil, which is conducive to increasing the flow time of the cold oil in the hot spot area and having more time to absorb the heat from the heat conduction sleeve 2, further improving the heat dissipation effect; When the local temperature of the rotating shaft 101 returns to normal, the air pressure in the cylinder body 10 is restored. Under the above principle, the annular oil discharge housing 7 moves away from the annular oil delivery housing 4, resetting the spring conduit 3 to avoid the bearing 102 area being too cold due to excessive cooling, which may affect the performance of the grease or cause unnecessary thermal stress; In addition, by providing the cylinder body 10 and the piston 11, the position and pitch of the spring conduit 3 can be automatically adjusted according to the temperature change without the need for sensors, controllers or external power sources, and can still work normally in extreme environments (high humidity, low temperature, electromagnetic interference).

[0024] It should be noted that a limiting plate is provided in the cylinder body 10 to prevent the piston 11 from overtraveling under extreme temperatures.

[0025] As a further embodiment of the present invention, the radius of the first gear 16 > the radius of the first bevel gear 14 > the radius of the second gear 13 > the radius of the second bevel gear 15; Specifically, by defining the radius ratio of the first gear 16, the first bevel gear 14, the second gear 13 and the second bevel gear 15, the torque of the first gear 16 is increased, ensuring that under the slight movement of the piston 11, the stroke of the annular oil discharge housing 7 is amplified, which is beneficial to overcoming the elastic damping of the spring conduit 3.

[0026] Furthermore, it further includes: An annular oil injection plate 18, and one side of the annular oil injection plate 18 close to the bearing 102 is fixedly connected to the surface of the rotating shaft 101; The oil-absorbing cotton 1803 is arranged inside the annular oil injection plate 18; The oil injection assembly injects the cold oil in the annular oil delivery shell 4 into the oil-absorbing cotton 1803 during the process of the pitch reduction of the spring conduit 3, and the cold oil is smeared onto the rotating shaft 101 through the oil-absorbing cotton 1803; The oil injection assembly includes: The partition plate 401 is fixedly connected inside the annular oil delivery shell 4 to divide the inside of the annular oil delivery shell 4 into a first chamber 402 and a second chamber 403, and the oil delivery pipe is fixedly communicated with the first chamber 402; The annular compression plate 404 is hermetically and slidably connected inside the second chamber 403; Several oil injection pipes 19, one ends of the several oil injection pipes 19 are fixedly connected to the side wall of the annular oil delivery shell 4 in an annular array and communicated with the second chamber 403, and the other ends are fixedly connected to the annular oil injection plate 18. First one-way valves are arranged inside the oil injection pipes 19; The connecting pipe 20 is used to connect the first chamber 402 and the second chamber 403, and a second one-way valve is arranged inside the connecting pipe 20; The second pushing and adjusting assembly is rotationally linked and cooperated with the second gear 13 to push and adjust the annular compression plate 404 to move; The second pushing and adjusting assembly includes: The first pushing platform 21 is fixedly connected to the side wall of the annular compression plate 404, and a first guiding surface is arranged at the end of the first pushing platform 21; The second pushing platform 22 has a second guiding surface adapted to the first guiding surface at its end. The second pushing platform 22 is in sliding contact with the first pushing platform 21. The end of the shaft of the second gear 13 penetrates through the partition plate 401 into the second chamber 403 and is fixedly connected to the second pushing platform 22; The return spring 23 has its two ends fixedly connected to the side wall of the annular compression plate 404 and the partition plate 401 respectively; Specifically, by setting the annular oil injection plate 18 and the oil absorption cotton 1803, during the process of the piston 11 driving the second rack 12 to move towards the opening of the cylinder body 10 and driving the second gear 13 to rotate (local temperature of the rotating shaft 101 is abnormally high), the second pushing platform 22 rotates synchronously, so as to rotate relative to the first pushing platform 21. By squeezing and pushing the first guiding surface through the second guiding surface, the first pushing platform 21 drives the annular compression plate 404 to move, thereby compressing the cold oil in the second chamber 403. At this time, the communication pipe 20 is sealed through the second one-way valve, the first one-way valve is closed, the sealing of the oil injection pipe 19 is cancelled, and the cold oil is injected into the oil absorption cotton 1803 in the annular oil injection plate 18 through the oil injection pipe 19. The cold oil is smeared onto the rotating shaft 101 through the oil absorption cotton 1803. On the one hand, a small amount of cold oil directly contacts the rotating shaft 101 to reduce the temperature of the rotating shaft 101. On the other hand, lubrication is improved and friction is reduced, thereby reducing the heat generation amount; During the process of the piston 11 driving the second rack 12 away from the opening of the cylinder body 10 (local temperature of the rotating shaft 101 returns to normal), the second pushing platform 22 cancels pushing the first pushing platform 21. Under the action of the reset spring 23, the annular compression plate 404 resets. At this time, the first one-way valve seals the oil injection pipe 19, the second one-way valve is closed to cancel the sealing of the communication pipe 20, and the cold oil in the first chamber 402 is replenished into the second chamber 403 to prepare for cooling the bearing 102 next time.

[0027] As a further implementation scheme of the present invention, several channel grooves 1801 are annularly arranged in the annular oil injection plate 18, the oil injection pipe 19 is communicated with the channel grooves 1801, and several oil holes 1802 are arranged in the channel grooves 1801 in an array for discharging cold oil to the oil absorption cotton 1803; Specifically, by setting the channel grooves 1801 and the oil holes 1802, it is beneficial to make the cold oil evenly adhere to the oil absorption cotton 1803, so that the cold oil can be evenly distributed on the surface of the rotating shaft 101, improving the heat dissipation effect.

[0028] The working principle of the present invention is as follows: During the rotation of the rotating shaft 101 of the generator body 1, cold oil is conveyed into the annular oil transmission shell 4 through an external pump oil device (such as an oil pump). The cold oil enters from the oil inlet end of the spring conduit 3 and moves along the spiral track to reduce the surface temperature of the heat conduction conduit, thereby reducing the surface temperature of the rotating shaft 101; As the cold oil continuously moves in the spring conduit 3, the temperature of the oil in the spring conduit 3 will continuously increase and finally be discharged from the oil discharge end of the spring conduit 3 into the annular oil discharge shell 7. The heated oil is conveyed to an external heat exchanger through the oil discharge pipe, and the heated oil is cooled through the heat exchanger and then conveyed to the annular oil transmission shell 4 through an external pump oil device to form a complete circulating oil path; Since the rotation speed of the shaft 101 of the wind turbine is affected by the wind speed, the faster the rotation speed, the more likely it is that the frictional heat between the shaft 101 and the bearing 102 will not be dissipated in time, which may easily cause abnormal temperature in the area of the shaft 101 near the bearing 102; When the temperature of the area near the bearing 102 of the rotating shaft 101 is abnormal, the annular oil discharge shell 7 is pushed and adjusted to move toward the annular oil delivery shell 4 through the first push adjustment component, which increases the number of turns of the spring guide tube 3 in the area near the bearing 102 of the rotating shaft 101, thereby increasing the contact area there and improving the heat dissipation effect. On the other hand, the pitch is reduced to increase the flow resistance of the cold oil, which is conducive to prolonging the flow time of the cold oil in the hot spot area (increasing the retention time), so that there is more time to absorb the heat on the heat-conducting sleeve 2, further improving the heat dissipation effect. When the temperature of the area of the rotating shaft 101 close to the bearing 102 returns to normal, the first pushing and adjusting component is used to push and adjust the annular oil discharge shell 7 away from the annular oil supply shell 4 to reset the spring guide tube 3, thereby avoiding overcooling that may easily cause the temperature in the bearing 102 area to be too low, affecting the grease performance or causing unnecessary thermal stress.

[0029] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A laminated wind turbine, characterized in that, Including: The generator body (1), on the rotating shaft (101) of the generator body (1), a heat-conducting sleeve (2) is fixedly sleeved; A spring conduit (3), the spring conduit (3) is wound around the surface of the heat-conducting sleeve (2); An annular oil delivery shell (4), the annular oil delivery shell (4) is fixedly connected to one end of the heat-conducting sleeve (2) close to the bearing (102), on the outer wall of the annular oil delivery shell (4), a first annular sealing plate (5) is rotatably connected, and a oil delivery pipe is fixedly communicated on the outside of the first annular sealing plate (5), and the oil delivery pipe is connected to an external oil pumping device; An annular oil discharge shell (7), the annular oil discharge shell (7) is slidably inserted on the surface of the other end of the heat-conducting sleeve (2), on the outer wall of the annular oil discharge shell (7), a second annular sealing plate (8) is rotatably connected, and a oil discharge pipe is fixedly connected to the outer wall of the second annular sealing plate (8), and the oil discharge pipe is connected to an external heat exchanger, and the external heat exchanger delivers the cooled cold oil to the external oil pumping device to form a circulating oil path; A first pushing and adjusting assembly, the first pushing and adjusting assembly pushes and adjusts the movement of the annular oil discharge shell (7) according to the temperature at the position of the rotating shaft (101) close to the bearing (102), so as to adjust the position and pitch of the spring conduit (3).

2. The laminated wind turbine according to claim 1, characterized in that, The first pushing and adjusting assembly includes: An outer annular sealing plate (6), one end of the outer annular sealing plate (6) is fixedly connected to the side wall of the annular oil delivery shell (4); An inner annular sealing plate (9), one end of the inner annular sealing plate (9) is fixedly connected to the side wall of the annular oil discharge shell (7), and the other end is slidably connected to the inner wall of the end of the outer annular sealing plate (6); A first rack (17), the first rack (17) is fixedly connected to the side wall of the annular oil discharge shell (7); A first gear (16), the first gear (16) is rotatably connected to the inner wall of the outer annular sealing plate (6), and the first gear (16) meshes with the first rack (17); A rotation driving assembly, the rotation driving assembly drives the first gear (16) to rotate according to the temperature at the position of the rotating shaft (101) close to the bearing (102), so as to adjust the position and pitch of the spring conduit (3).

3. A laminated wind turbine according to claim 2, characterized in that, The rotation driving assembly includes: A cylinder body (10), the cylinder body (10) is fixedly connected to the heat-conducting sleeve (2) close to the bearing (102), a piston (11) is hermetically slidable in the cylinder body (10), and an inert gas is filled between the cylinder body (10) and the piston (11); A second rack (12), the second rack (12) is fixedly connected to the top of the piston (11), on the side surface of the top of the second rack (12), a second gear (13) is meshed, and the second gear (13) is rotatably connected to the side wall of the annular oil delivery shell (4); A first bevel gear (14), the first bevel gear (14) is coaxially fixed with the second gear (13), on the side surface of the first bevel gear (14), a second bevel gear (15) is meshed, and the second bevel gear (15) is coaxially fixed with the first gear (16).

4. A laminated wind turbine according to claim 3, characterized in that, The radius of the first gear (16) > the radius of the first bevel gear (14) > the radius of the second gear (13) > the radius of the second bevel gear (15).

5. A laminated wind turbine according to claim 3, characterized in that, It also includes: Annular oil injection plate (18), one side of the annular oil injection plate (18) close to the bearing (102) is fixedly connected to the surface of the rotating shaft (101); Oil absorption cotton (1803), the oil absorption cotton (1803) is arranged in the annular oil injection plate (18); Oil injection assembly. During the process of the pitch reduction of the spring conduit (3), the oil injection assembly injects the cold oil in the annular oil delivery shell (4) into the oil absorption cotton (1803), and the cold oil is applied to the rotating shaft (101) through the oil absorption cotton (1803).

6. A laminated wind turbine according to claim 5, characterized in that, The oil injection assembly includes: Partition plate (401), the partition plate (401) is fixedly connected in the annular oil delivery shell (4) to divide the annular oil delivery shell (4) into a first chamber (402) and a second chamber (403), and the oil delivery pipe is fixedly communicated with the first chamber (402); Annular compression plate (404), the annular compression plate (404) is hermetically and slidably connected in the second chamber (403); Several oil injection pipes (19), one ends of several oil injection pipes (19) are fixedly connected to the side wall of the annular oil delivery shell (4) in an annular array and communicated with the second chamber (403), and the other ends are fixedly connected to the annular oil injection plate (18), and first one-way valves are arranged in the oil injection pipes (19); Communication pipe (20), the communication pipe (20) is used to communicate the first chamber (402) and the second chamber (403), and a second one-way valve is arranged in the communication pipe (20); Second push and adjust assembly, the second push and adjust assembly is rotationally linked with the second gear (13) to push and adjust the movement of the annular compression plate (404).

7. A laminated wind turbine according to claim 6, characterized in that, The second push and adjust assembly includes: First push platform (21), the first push platform (21) is fixedly connected to the side wall of the annular compression plate (404), and a first guiding surface is provided at the end of the first push platform (21); Second push platform (22), a second guiding surface adapted to the first guiding surface is provided at the end of the second push platform (22), the second push platform (22) is in sliding contact with the first push platform (21), and the end of the shaft of the second gear (13) penetrates through the partition plate (401) into the second chamber (403) and is fixedly connected to the second push platform (22); Return spring (23), both ends of the return spring (23) are fixedly connected to the side walls of the annular compression plate (404) and the partition plate (401).

8. A laminated wind turbine according to claim 6, characterized in that, Several channels (1801) are annularly arrayed in the annular oil injection plate (18), the oil injection pipes (19) are communicated with the channels (1801), and several oil holes (1802) are arrayed in the channels (1801) for discharging cold oil to the oil absorption cotton (1803).

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