A wind turbine with temperature control function

Abstract

The present invention provides a wind turbine with a temperature control function, which relates to the technical field of wind power generation, and comprises a tower, a nacelle and blades. The nacelle is rotatably connected to the upper end of the tower, and a main shaft, a brake mechanism, a gear box and a generator are sequentially arranged in the nacelle in the left and right directions. A temperature sensor is arranged inside the nacelle, and one end of the main shaft extends out of the nacelle and is fixedly connected with the blades, and the other end of the main shaft passes through the brake mechanism and extends into the gear box, and a generator shaft extends out of the other end of the gear box, and the other end of the generator shaft extends into the generator, and a lubricating oil tank and a radiator are respectively arranged on the front and rear sides of the generator shaft, and the lubricating oil tank is connected to the gear box through an oil inlet pipe, and the radiator is connected to the gear box through an oil outlet pipe, and the lubricating oil tank is connected to the radiator through an oil delivery pipe, and an oil pump is arranged on the oil inlet pipe, the oil outlet pipe and the oil delivery pipe, and a heating rod is arranged in the lubricating oil tank. Temperature regulation when the wind turbine is started in cold weather is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power generation, and in particular to a wind power generator with a temperature control function. Background Art

[0002] Some wind turbines are located in an environment with large temperature differences between day and night and between seasons. The ambient temperature will affect the normal operation of the wind turbine. In cold weather, the internal temperature of a newly started wind turbine is too low, which will cause insufficient lubrication of parts. At the same time, the mechanical properties of metal materials change under low temperatures, making them brittle and causing damage to parts. As the wind turbine continues to run, the heat generated will cause the temperature inside the wind turbine to continue to rise. As the temperature continues to rise, the wind turbine will cause failures.

[0003] Existing wind turbines only consider the heat dissipation capacity of the wind turbines, but lack temperature regulation means when starting the wind turbines in cold weather. Summary of the invention

[0004] The present invention provides a wind turbine with a temperature control function, so as to solve the defect that the prior art only considers the heat dissipation capacity of the wind turbine and lacks a temperature adjustment means when the wind turbine is started in cold weather.

[0005] On the one hand, the present invention provides a wind turbine with a temperature control function, comprising a tower, a nacelle and blades, the nacelle being rotatably connected to the upper end of the tower, a main shaft, a brake mechanism, a gear box and a generator being arranged in sequence in the nacelle along the left and right directions, a temperature sensor being arranged inside the nacelle, one end of the main shaft extending out of the nacelle and fixedly connected with the blades, the other end of the main shaft passing through the brake mechanism and extending into the gear box, a generator shaft extending out of the other end of the gear box, the other end of the generator shaft extending into the generator, a lubricating oil tank and a radiator being respectively arranged on the front and rear sides of the generator shaft, the lubricating oil tank and the gear box being connected through an oil inlet pipe, the radiator being connected to the gear box through an oil outlet pipe, the lubricating oil tank and the radiator being connected through an oil delivery pipe, oil pumps being arranged on the oil inlet pipe, the oil outlet pipe and the oil delivery pipe, and a heating rod being arranged in the lubricating oil tank.

[0006] Preferably, a plurality of first vents are provided on the top surface of the cabin, each of which is rotatably connected to a first wind shield, a plurality of second vents are provided on the left and right sides of the cabin, each of which is rotatably connected to a second wind shield, a plurality of air outlet dampers are rotatably connected to the rear wall of the cabin, and filters are provided on the inner sides of the first vents, the second vents and the air outlet dampers.

[0007] Preferably, a plurality of first heat sinks are arranged at intervals in the front and rear directions on the outer top surface of the gear box, and a plurality of second heat sinks are arranged at intervals in the upper and lower directions on the outer side walls of the front and rear sides of the gear box.

[0008] Preferably, a cooling jacket is provided on the outer sleeve of the gear box, and a ventilation groove exists between the cooling jacket and the outer wall of the gear box.

[0009] Preferably, a plurality of first cooling blocks are arranged at intervals in the front and rear of the outer top surface of the cooling jacket, and a plurality of second cooling blocks are arranged at intervals in the upper and lower outer walls of the front and rear sides of the cooling jacket, and a cooling water circuit is arranged inside the cooling jacket, the cooling water circuit flows through the first cooling blocks and the second cooling blocks, and the water inlet and outlet of the cooling water circuit are both connected to the external water source.

[0010] Preferably, the brake mechanism includes a brake box, which is fixedly connected to the bottom surface of the cabin, and the main shaft rotates through the brake box. A gear 1 is provided on the fixed sleeve of the main shaft, a mounting frame 1 is fixedly connected to the inner wall of the brake box, a rotating shaft 1 is rotatably connected in the mounting frame 1, a gear 2 is provided on the fixed sleeve of the rotating shaft 1, and the gear 2 is meshed with the gear 1. A cooling fan is installed at one end of the rotating shaft 1, a ventilation window is provided on the side wall of the brake box, and a filter is provided in the ventilation window, a group of brake assemblies and a group of drive assemblies are respectively provided on the front and rear sides of the main shaft, and the brake assemblies and the drive assemblies are arranged correspondingly, and a group of sprinkler assemblies are provided above the main shaft, and the drive assembly is used to drive the brake assembly and the sprinkler assembly to work.

[0011] Preferably, the brake assembly includes an installation box, which is fixedly connected to the bottom surface of the brake box, a brake block is slidably connected to the side wall of the installation box close to the main shaft in the front-to-back direction, a limit plate is fixedly connected to the upper and lower sides of the brake block, a spring 1 is fixedly connected between the limit plate and the inner wall of the installation box, an extrusion block is slidably connected to the side wall of the installation box away from the main shaft in the front-to-back direction, a spring 2 is fixedly connected between the extrusion block and the brake block, a limit groove along the front-to-back direction is provided on the extrusion block, a limit column is fixedly connected to the inner wall of the installation box, and the limit column slides in the limit groove.

[0012] Preferably, the sprinkler assembly includes a water storage tank and a water collecting tray, the front and rear ends of the lower surface of the water storage tank are respectively fixedly connected to the top surfaces of the two installation boxes, the water storage tank is provided with an upper water storage chamber and a lower sprinkler chamber, the water storage chamber and the sprinkler chamber are connected through a water delivery hole, a filter is provided in the water delivery hole, two groups of control components are symmetrically provided front and back in the sprinkler chamber, the water collecting tray is provided on the lower side of the main shaft, the front and rear side walls of the water collecting tray are respectively fixedly connected to the side walls of the two installation boxes, the water collecting tray and the water storage tank are connected through a circulation pipe, and a circulation pump is provided on the circulation pipe.

[0013] Preferably, two control grooves are symmetrically arranged on the front and rear sides of the bottom of the water sprinkling chamber, a plurality of water sprinkling holes are respectively arranged on the upper and lower sides of the control groove, a sliding groove along the front-to-back direction is arranged on the upper wall of the installation box, a limit plate on the upper side of the brake block extends from the sliding groove, the control component comprises a water control plate 1 and a water control plate 2, the water control plate 1 slides through the side wall of the water sprinkling chamber along the front-to-back direction, a sealing block is fixedly connected to one end of the two water control plates 1 close to each other, a driving plate is fixedly connected to the other end of the water control plate 1, a spring 3 is fixedly connected between the driving plate and the outer wall of the water storage tank, the water control plate 2 is slidably connected in the control groove along the front-to-back direction, a spring 4 is fixedly connected between the water control plate 2 and the inner wall of the control groove, the other end of the water control plate 2 is fixedly connected to the limit plate on the upper side of the brake block, a plurality of water permeable holes are arranged on the water control plate 2, and the water permeable holes and the water sprinkling holes are arranged one-to-one correspondingly.

[0014] Compared with the prior art, the present invention has the following beneficial effects: During the operation of the wind turbine, lubricating oil is continuously supplied to the gear box through the lubricating oil tank, and the high-temperature lubricating oil inside the gear box is passed into the radiator through the oil outlet pipe for heat dissipation and then transported back to the lubricating oil tank through the oil pipe. The heat inside the gear box is dissipated through the circulation of the lubricating oil, which ensures the high efficiency of the heat dissipation inside the gear box, ensures that the temperature of the lubricating oil is always within a reasonable range, and ensures the lubrication effect inside the gear box. At the same time, the natural heat dissipation function brought by the air circulation inside the cabin is used to dissipate the heat of the brake mechanism and the generator, reducing the energy demand for the heat dissipation function, ensuring the reasonable heat dissipation of various components inside the cabin, and reducing the load caused by heat dissipation on the operation of the wind turbine.

[0015] When a wind turbine is started in a cold environment, the lubricating oil in the lubricating oil tank is first heated by a heating rod. After the lubricating oil reaches a suitable temperature, the circulation of the lubricating oil is started first to heat the inside of the gear box. After the lubricating oil circulation is stable, the wind turbine is started to avoid poor lubrication inside the gear box due to the lubricating oil temperature being too low, which results in a shortened service life of the parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 is a schematic diagram of the internal structure of the cabin of the present invention; Figure 3 It is a right side structural schematic diagram of the gear box of the present invention; Figure 4 It is a schematic diagram of the main structure of the brake mechanism of the present invention; Figure 5 It is a left-side structural schematic diagram of the brake mechanism of the present invention; Figure 6 yes Figure 5 A schematic diagram of the structure enlargement in the middle; Figure 7 yes Figure 5 Enlarged schematic diagram of the structure at point B in the middle.

[0018] Reference numerals: 1. Tower; 2. Nacelle; 3. Blades; 4. Main shaft; 5. Brake mechanism; 6. Gear box; 7. Generator; 8. Generator shaft; 9. Lubricating oil tank; 10. Radiator; 11. Oil inlet pipe; 12. Oil outlet pipe; 13. Oil delivery pipe; 14. First vent; 15. First wind deflector; 16. Second vent; 17. Second wind deflector; 18. Air outlet damper; 19. First heat sink; 20. Second heat sink; 21. Cooling jacket; 22. Ventilation slot; 23. First cooling block; 24. Second cooling block; 25. Cooling waterway; 26. Brake box; 27. Gear 1; 28. Mounting frame 1; 29. ​​Rotating shaft 1; 30. Gear 2; 31. Cooling fan; 32. Ventilation window; 33, installation box; 34, brake block; 35, limit plate; 36, spring one; 37, extrusion block; 38, spring two; 39, limit groove; 40, limit column; 41, water storage tank; 42, water collecting tray; 43, water storage chamber; 44, water sprinkling chamber; 45, water delivery hole; 46, circulation pipe; 47, control groove; 48, water sprinkling hole; 49, sliding groove; 50, water control plate one; 51, water control plate two; 52, sealing block; 53, drive plate; 54, spring three; 55, spring four; 56, water permeable hole; 57, support frame; 58, drive motor; 59, threaded rod; 60, threaded block; 61, connecting rod; 62, center axis; 63, sliding seat; 64, extrusion plate. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions and technical features between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0021] Example 1 The embodiment of the present invention discloses a wind turbine with a temperature control function, comprising a tower 1, a nacelle 2 and blades 3. The nacelle 2 is rotatably connected to the upper end of the tower 1. A main shaft 4, a brake mechanism 5, a gear box 6 and a generator 7 are sequentially arranged in the nacelle 2 along the left and right directions. A temperature sensor is arranged inside the nacelle 2. One end of the main shaft 4 extends out of the nacelle 2 and is fixedly connected to the blade 3. The other end of the main shaft 4 passes through the brake mechanism 5 and extends into the gear box 6. A generator shaft 8 extends out of the other end of the gear box 6. The other end of the generator shaft 8 extends into the generator 7. A lubricating oil tank 9 and a radiator 10 are respectively arranged on the front and rear sides of the generator shaft 8. The lubricating oil tank 9 is connected to the gear box 6 through an oil inlet pipe 11. The radiator 10 is connected to the gear box 6 through an oil outlet pipe 12. The lubricating oil tank 9 is connected to the radiator 10 through an oil delivery pipe 13. The oil inlet pipe 11, the oil outlet pipe 12 and the oil delivery pipe 13 are all provided with oil pumps. A heating rod is arranged in the lubricating oil tank 9.

[0022] The beneficial effects of the above technical solution are: By setting a temperature sensor inside the cabin 2, the actual temperature inside the cabin 2 can be obtained in time, which facilitates the adjustment of the heating / cooling efficiency inside the cabin 2 and ensures that the temperature inside the cabin 2 is at a suitable working temperature.

[0023] During the operation of the wind turbine 7, lubricating oil is continuously supplied to the gear box 6 through the lubricating oil tank 9, and the high-temperature lubricating oil inside the gear box 6 is passed into the radiator 10 through the oil outlet pipe 12 for heat dissipation and then transported back to the lubricating oil tank 9 through the oil delivery pipe 13. The gear box 6 is cooled by the circulation of the lubricating oil, thereby ensuring the high efficiency of the heat dissipation inside the gear box 6, ensuring that the temperature of the lubricating oil is always within a reasonable range, and ensuring the lubrication effect inside the gear box 6. At the same time, the brake mechanism 5 and the generator 7 are cooled by the natural heat dissipation function brought by the air circulation inside the cabin 2, thereby reducing the energy demand for the heat dissipation function, ensuring the reasonable heat dissipation of each component inside the cabin 2, and reducing the load brought by the heat dissipation on the operation of the wind turbine 7.

[0024] When the wind turbine 7 is started in a cold environment, the lubricating oil in the lubricating oil tank 9 is first heated by a heating rod. After the lubricating oil reaches a suitable temperature, the circulation of the lubricating oil is first started to heat the inside of the gear box 6. After the circulation of the lubricating oil is stable, the wind turbine 7 is started, thereby avoiding poor lubrication effect inside the gear box 6 due to the lubricating oil temperature being too low, thereby shortening the service life of the parts.

[0025] Example 2 On the basis of Example 1, a plurality of first vents 14 are provided on the top surface of the cabin 2, and a first wind deflector 15 is rotatably connected to each first vent 14. A plurality of second vents 16 are provided on the left and right sides of the cabin 2, and a second wind deflector 17 is rotatably connected to each second vent 16. A plurality of air outlet dampers 18 are rotatably connected to the rear wall of the cabin 2, and filters are provided on the inner sides of the first vents 14, the second vents 16 and the air outlet dampers 18.

[0026] The beneficial effects of the above technical solution are: By providing the first vent 14, the second vent 16 and the air outlet damper 18, the air circulation inside the cabin 2 is achieved, thereby enhancing the heat dissipation effect inside the cabin 2. By means of the first wind deflector 15 and the second wind deflector 17 with adjustable opening angles, the air flow inside the cabin 2 is regulated, so that the opening angles of the first wind deflector 15 and the second wind deflector 17 can be adjusted in time according to the external environmental conditions (wind speed, ambient temperature) and the required heat dissipation effect, thereby adjusting the heat dissipation rate of the cabin 2 and ensuring that the temperature inside the cabin 2 is within a suitable range.

[0027] When the wind turbine 7 is in a cold environment and severe weather conditions, the first wind deflector 15, the second wind deflector 17 and the air outlet damper 18 are closed to seal the environment of the cabin 2, thereby achieving heat preservation of the interior of the cabin 2 and preventing rain and snow from falling into the cabin 2 and causing damage to the internal parts of the cabin 2.

[0028] By arranging filter nets inside the first vent 14, the second vent 16 and the air outlet damper 18, it is prevented that foreign matter in the external environment enters the interior of the nacelle 2 through the first vent 14, the second vent 16 and the air outlet damper 18, thereby ensuring the working safety of the wind turbine 7.

[0029] Example 3 On the basis of Embodiment 1 or 2, a plurality of first heat sinks 19 are arranged at intervals on the outer top surface of the gear box 6, and a plurality of second heat sinks 20 are arranged at intervals on the outer side walls of the front and rear sides of the gear box 6.

[0030] Preferably, a cooling jacket 21 is provided on the outside of the gear box 6 , and a ventilation groove 22 exists between the cooling jacket 21 and the outer wall of the gear box 6 .

[0031] Preferably, a plurality of first cooling blocks 23 are arranged at intervals in front and rear on the outer top surface of the cooling jacket 21, a plurality of second cooling blocks 24 are arranged at intervals in upper and lower directions on the outer walls of the front and rear sides of the cooling jacket 21, and a cooling water path 25 is arranged inside the cooling jacket 21. The cooling water path 25 flows through the first cooling blocks 23 and the second cooling blocks 24, and the water inlet and outlet of the cooling water path 25 are both connected to an external water source.

[0032] In this embodiment, the external water source may be an additional water tank or groundwater extracted through a pipeline.

[0033] Beneficial effects of the above technical solution: By arranging the first heat sink 19 and the second heat sink 20 on the outer surface of the gear box 6 , the heat exchange area between the gear box 6 and the outside is increased, thereby improving the heat dissipation effect of the gear box 6 .

[0034] By arranging a cooling jacket 21 outside the gear phase to form a ventilation slot 22 , the air flow rate inside the ventilation slot 22 is increased, thereby reducing the air temperature, thereby further improving the heat dissipation effect on the gear box 6 .

[0035] By arranging the first cooling block 23 and the second cooling block 24 on the outer side of the cooling jacket 21, the contact area between the outer side of the cooling jacket 21 and the air is increased, thereby improving the heat exchange efficiency with the air. In conjunction with the internal cooling water circuit 25, the cooling jacket 21 can simultaneously cool the air flowing through the outer surface of the cooling jacket 21 and the air flowing through the ventilation grooves 22, thereby making the temperature of the air flowing through the ventilation grooves 22 lower, thereby improving the heat dissipation effect on the gear box 6. By reducing the temperature of the air flowing through the outer surface of the cooling jacket 21, the heat dissipation effect on the generator 7 and the nacelle 2 is improved.

[0036] Example 4 On the basis of any one of embodiments 1-3, the brake mechanism 5 includes a brake box 26, which is fixedly connected to the bottom surface of the cabin 2, and the main shaft 4 rotates and passes through the brake box 26. A gear 27 is fixedly sleeved on the main shaft 4, and a mounting frame 28 is fixedly connected to the inner wall of the brake box 26. A rotating shaft 29 is rotatably connected in the mounting frame 28. A gear 2 30 is fixedly sleeved on the rotating shaft 29, and the gear 2 30 is meshed with the gear 27. A cooling fan 31 is installed at one end of the rotating shaft 29, and a ventilation window 32 is provided on the side wall of the brake box 26. A filter is provided in the ventilation window 32. A group of brake assemblies and a group of drive assemblies are respectively provided on the front and rear sides of the main shaft 4, and the brake assemblies and the drive assemblies are arranged correspondingly. A group of sprinkler assemblies are arranged above the main shaft 4, and the drive assemblies are used to drive the brake assemblies and the sprinkler assemblies to work.

[0037] Preferably, the brake assembly includes an installation box 33, which is fixedly connected to the inner bottom surface of the brake box 26, and a brake block 34 is slidably connected to the side wall of the installation box 33 close to the main shaft 4 in the front-to-back direction, and a limiting plate 35 is fixedly connected to the upper and lower sides of the brake block 34, and a spring 1 36 is fixedly connected between the limiting plate 35 and the inner wall of the installation box 33, and an extrusion block 37 is slidably connected to the side wall of the installation box 33 away from the main shaft 4 in the front-to-back direction, and a spring 2 38 is fixedly connected between the extrusion block 37 and the brake block 34, and a limiting groove 39 along the front-to-back direction is provided on the extrusion block 37, and a limiting column 40 is fixedly connected to the inner wall of the installation box 33, and the limiting column 40 slides in the limiting groove 39.

[0038] Preferably, the sprinkler assembly includes a water tank 41 and a water collecting tray 42, the front and rear ends of the lower surface of the water tank 41 are respectively fixedly connected to the top surfaces of the two mounting boxes 33, the water tank 41 is provided with an upper water storage chamber 43 and a lower sprinkler chamber 44, the water storage chamber 43 and the sprinkler chamber 44 are connected through a water delivery hole 45, a filter screen is provided in the water delivery hole 45, two groups of control components are symmetrically provided in the sprinkler chamber 44, the water collecting tray 42 is provided on the lower side of the main shaft 4, the front and rear side walls of the water collecting tray 42 are respectively fixedly connected to the side walls of the two mounting boxes 33, the water collecting tray 42 and the water tank 41 are connected through a circulation pipe 46, and a circulation pump is provided on the circulation pipe 46.

[0039] Preferably, two control grooves 47 are symmetrically arranged on the front and rear sides of the bottom of the water sprinkling chamber 44, and a plurality of water sprinkling holes 48 are arranged on the upper and lower sides of the control groove 47, respectively. A sliding groove 49 along the front-to-back direction is arranged on the upper wall of the installation box 33, and the limit plate 35 on the upper side of the brake block 34 extends from the sliding groove 49. The control component includes a water control plate 1 50 and a water control plate 2 51. The water control plate 1 50 slides along the front-to-back direction and penetrates the side wall of the water sprinkling chamber 44. The ends of the two water control plates 1 50 close to each other are fixedly connected with a sealing block 5 2. The other end of the water control plate 1 50 is fixedly connected to a driving plate 53, and a spring 3 54 is fixedly connected between the driving plate 53 and the outer wall of the water storage tank 41. The water control plate 2 51 is slidably connected in the control groove 47 along the front-back direction, and a spring 4 55 is fixedly connected between the water control plate 2 51 and the inner wall of the control groove 47. The other end of the water control plate 2 51 is fixedly connected to the limit plate 35 on the upper side of the brake block 34. A plurality of water permeable holes 56 are provided on the water control plate 2 51, and the water permeable holes 56 are provided one-to-one with the water sprinkling holes 48.

[0040] In this embodiment, the driving assembly includes a support frame 57, which is fixedly connected to the inner bottom surface of the brake box 26. A driving motor 58 is installed on the support frame 57. The output end of the driving motor 58 is fixedly connected to a vertically arranged threaded rod 59. The threaded rod 59 is provided with two sections of external threads with opposite rotation directions. A threaded block 60 is threadedly connected to each section of the external thread. A connecting rod 61 is rotatably connected to each threaded block 60. The middle parts of the two connecting rods 61 are cross-connected by a central axis 62. The other end of the connecting rod 61 is rotatably connected to a sliding seat 63. The sliding seat 63 is slidably connected to one side of an extrusion plate 64 along the up and down directions. The other side of the extrusion plate 64 is used to drive the brake assembly and the sprinkler assembly.

[0041] In this embodiment, the contact surfaces of the two sealing blocks 52 are provided with grooves that fit together.

[0042] The beneficial effects of the above technical solution are: When the main shaft 4 is braked, the driving motor 58 is started to rotate forward, so that the two threaded blocks 60 are close to each other, thereby driving the extrusion plate 64 to move toward the main shaft 4, thereby squeezing the extrusion block 37, making the brake block 34 contact with the main shaft 4, and thus stopping the main shaft 4. At the same time, the extrusion plate 64 will squeeze the driving plate 53, so that the two water control plates 1 50 are close to each other, so that the two sealing blocks 52 are in contact with each other to block the water delivery hole 45, so that the water storage chamber 43 no longer delivers water to the water sprinkling chamber 44, so as to avoid continuous sprinkling after the main shaft 4 is stopped, causing a waste of resources. As the two brake blocks 34 are close to each other, the two water control plates 2 51 are driven to approach each other through the limit plate 35, so that the water permeable hole 56 is gradually aligned with the water sprinkling hole 48, thereby gradually increasing the amount of water sprinkling.

[0043] When the main shaft 4 needs to be restarted, the driving motor 58 is reversed to make the two threaded blocks 60 move away from each other, so that the extrusion plate 64 moves away from the main shaft 4. After the extrusion effect of the extrusion plate 64 is lost, the brake block 34 is separated from the main shaft 4 by the action of the spring 1 36, so that the main shaft 4 can rotate again. At the same time, the water control plate 1 50 returns to its original position under the action of the spring 3 54, so that the water storage chamber 43 and the water sprinkling chamber 44 are connected again. At the same time, the water control plate 2 51 returns to its original position under the action of the spring 4 55, so that the water permeable hole 56 and the water sprinkling hole 48 are misaligned, and the water sprinkling stops.

[0044] By setting a ventilation window 32 on the brake box 26 and driving the cooling fan 31 to rotate through the engagement of gear 1 27 and gear 2 30, the heat dissipation of the brake mechanism 5 when the wind turbine 7 is working normally is achieved. At the same time, after the main shaft 4 stops rotating, the cooling fan 31 stops synchronously without the need for manual operation by the staff, which simplifies the control of the wind turbine 7 and avoids the waste of resources caused by the cooling fan 31 still working when the wind turbine 7 is shut down.

[0045] The contact between the brake block 34 and the main shaft 4 is controlled by driving the threaded rod 59 to rotate by the driving motor 58, thereby realizing the function of controlling the distance between the brake block 34 and the main shaft 4. Further, through the setting of the spring 2 38, the function of controlling the squeezing force between the brake block 34 and the main shaft 4 is realized, and then the friction force between the brake block 34 and the main shaft 4 is controlled, so that different magnitudes of friction force can be applied according to the rotation speed of the main shaft 4, and the main shaft 4 can be gradually decelerated, reducing the torque applied to the main shaft 4 and the friction block, so as to avoid the main shaft 4 suddenly being applied with a huge friction force by the brake block 34 when running at high speed and then stopping to damage the device due to the instantaneous huge torque.

[0046] By setting a circulation pipe 46 to connect the water tank 41 and the water collecting tray 42, the recycling of water resources is achieved, the frequent addition of water to the water tank 41 is avoided, and the cooling water is recovered at the same time, which avoids the failure of the device caused by the spillage of cooling water. By setting the water control plate 1 50 and the water control plate 2 51, automatic watering is ensured according to the braking situation, without the need for manual operation by the staff, which simplifies the control of the wind turbine 7. After the main shaft 4 is braked, the sealing block 52 is blocked to avoid the waste of resources caused by continuous watering. As the friction block moves toward the main shaft 4, the penetration area of ​​the water permeable hole 56 and the water sprinkling hole 48 is gradually increased, thereby realizing the function of gradually increasing the water sprinkling amount, so that the water sprinkling amount is matched with the heat generation, ensuring the heat dissipation effect while reducing the consumption of resources. When the main shaft 4 is working normally, the water permeable hole 56 and the water sprinkling hole 48 are misaligned, and water sprinkling is no longer performed, thereby avoiding the consumption of resources.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A wind turbine with temperature control function, characterized in that: The invention comprises a tower (1), a nacelle (2) and blades (3), wherein the nacelle (2) is rotatably connected to the upper end of the tower (1), a main shaft (4), a brake mechanism (5), a gear box (6) and a generator (7) are arranged in sequence in the nacelle (2) along the left-right direction, a temperature sensor is arranged inside the nacelle (2), one end of the main shaft (4) extends out of the nacelle (2) and is fixedly connected to the blades (3), the other end of the main shaft (4) passes through the brake mechanism (5) and extends into the gear box (6), and a generator shaft (8) extends out of the other end of the gear box (6). The other end of the generating shaft (8) extends into the generator (7). A lubricating oil tank (9) and a radiator (10) are respectively arranged on the front and rear sides of the generating shaft (8). The lubricating oil tank (9) is connected to the gear box (6) through an oil inlet pipe (11). The radiator (10) is connected to the gear box (6) through an oil outlet pipe (12). The lubricating oil tank (9) is connected to the radiator (10) through an oil delivery pipe (13). The oil inlet pipe (11), the oil outlet pipe (12) and the oil delivery pipe (13) are all provided with oil pumps. A heating rod is arranged in the lubricating oil tank (9).

2. A wind turbine with temperature control function according to claim 1, characterized in that: A plurality of first vents (14) are arranged on the top surface of the cabin (2), each of the first vents (14) is rotatably connected to a first wind deflector (15), a plurality of second vents (16) are arranged on the left and right sides of the cabin (2), each of the second vents (16) is rotatably connected to a second wind deflector (17), a plurality of air outlet dampers (18) are rotatably connected to the rear wall of the cabin (2), and filter screens are arranged inside the first vents (14), the second vents (16) and the air outlet dampers (18).

3. A wind turbine with temperature control function according to claim 1, characterized in that: A plurality of first heat sinks (19) are arranged at intervals on the outer top surface of the gear box (6), and a plurality of second heat sinks (20) are arranged at intervals on the outer side walls of the front and rear sides of the gear box (6).

4. A wind turbine with temperature control function according to claim 1, characterized in that: The gear box (6) is provided with a cooling jacket (21) on its exterior, and a ventilation groove (22) is provided between the cooling jacket (21) and the outer wall of the gear box (6).

5. A wind turbine with temperature control function according to claim 4, characterized in that: A plurality of first cooling blocks (23) are arranged at intervals on the outer top surface of the cooling jacket (21) at front and rear sides, and a plurality of second cooling blocks (24) are arranged at intervals on the outer walls of the front and rear sides of the cooling jacket (21) at upper and lower sides. A cooling water path (25) is arranged inside the cooling jacket (21), and the cooling water path (25) flows through the first cooling blocks (23) and the second cooling blocks (24). The water inlet and outlet of the cooling water path (25) are both connected to an external water source.

6. A wind turbine with temperature control function according to claim 1, characterized in that: The brake mechanism (5) comprises a brake box (26), the brake box (26) is fixedly connected to the inner bottom surface of the cabin (2), the main shaft (4) rotates and penetrates the brake box (26), a gear 1 (27) is fixedly sleeved on the main shaft (4), a mounting frame 1 (28) is fixedly connected to the inner wall of the brake box (26), a rotating shaft 1 (29) is rotatably connected inside the mounting frame 1 (28), a gear 2 (30) is fixedly sleeved on the rotating shaft 1 (29), the gear 2 (30) is meshed with the gear 1 (27), a cooling fan (31) is installed at one end of the rotating shaft 1 (29), a ventilation window (32) is provided on the side wall of the brake box (26), a filter screen is provided in the ventilation window (32), a group of brake components and a group of drive components are respectively provided on the front and rear sides of the main shaft (4), the brake components and the drive components are correspondingly arranged, a group of sprinkler components is provided above the main shaft (4), and the drive component is used to drive the brake components and the sprinkler components to work.

7. A wind turbine with temperature control function according to claim 6, characterized in that: The brake assembly comprises an installation box (33), the installation box (33) is fixedly connected to the inner bottom surface of the brake box (26), a brake block (34) is slidably connected to the side wall of the installation box (33) close to the main shaft (4) in the front-to-back direction, a limit plate (35) is fixedly connected to the upper and lower sides of the brake block (34), a spring 1 (36) is fixedly connected between the limit plate (35) and the inner wall of the installation box (33), an extrusion block (37) is slidably connected to the side wall of the installation box (33) away from the main shaft (4) in the front-to-back direction, a spring 2 (38) is fixedly connected between the extrusion block (37) and the brake block (34), a limit groove (39) is arranged on the extrusion block (37) in the front-to-back direction, a limit column (40) is fixedly connected to the inner wall of the installation box (33), and the limit column (40) slides in the limit groove (39).

8. The wind turbine with temperature control function according to claim 7, characterized in that: The water sprinkling assembly comprises a water storage tank (41) and a water collecting tray (42). The front and rear ends of the lower surface of the water storage tank (41) are respectively fixedly connected to the top surfaces of the two installation boxes (33). The water storage tank (41) is provided with an upper water storage chamber (43) and a lower water sprinkling chamber (44). The water storage chamber (43) and the water sprinkling chamber (44) are connected through a water delivery hole (45). A filter screen is provided in the water delivery hole (45). Two groups of control components are symmetrically provided in the front and rear of the water sprinkling chamber (44). The water collecting tray (42) is provided on the lower side of the main shaft (4). The front and rear side walls of the water collecting tray (42) are respectively fixedly connected to the side walls of the two installation boxes (33). The water collecting tray (42) and the water storage tank (41) are connected through a circulation pipe (46). A circulation pump is provided on the circulation pipe (46).

9. A wind turbine with temperature control function according to claim 8, characterized in that: The bottom of the water sprinkling chamber (44) is symmetrically provided with two control grooves (47) in the front and rear directions, and a plurality of water sprinkling holes (48) are respectively provided on the upper and lower sides of the control groove (47). The upper wall of the mounting box (33) is provided with a sliding groove (49) along the front-back direction, and the limit plate (35) on the upper side of the brake block (34) extends from the sliding groove (49). The control component includes a water control plate 1 (50) and a water control plate 2 (51). The water control plate 1 (50) slides along the front-back direction and penetrates the side wall of the water sprinkling chamber (44). The ends of the two water control plates 1 (50) close to each other are fixedly connected with a sealing block (52). The other end of the plate 1 (50) is fixedly connected to a driving plate (53), a spring 3 (54) is fixedly connected between the driving plate (53) and the outer wall of the water storage tank (41), the water control plate 2 (51) is slidably connected in the control groove (47) along the front-back direction, a spring 4 (55) is fixedly connected between the water control plate 2 (51) and the inner wall of the control groove (47), the other end of the water control plate 2 (51) is fixedly connected to the limit plate (35) on the upper side of the brake block (34), and a plurality of water permeable holes (56) are arranged on the water control plate 2 (51), and the water permeable holes (56) are arranged one-to-one with the water sprinkling holes (48).

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