A wind turbine gearbox
Patent Information
- Application Number
- CN202611266477.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-08-20
- Publication Date
- 2026-10-16
AI Technical Summary
针对现有技术的不足，本发明提供了一种风力发电机齿轮箱，主要为解决齿轮箱在使用时，不能根据齿轮箱内部温度对润滑油散热状态进行及时调整的问题
1、通过定向切换机构使得装置具有切换模式，在检修时不用停工。
Smart Images
Figure CN122920050A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of wind turbine gearbox technology, specifically a wind turbine gearbox. Background Technology
[0002] A wind turbine generator set includes a wind turbine, a gearbox, a generator, and a main frame. The gearbox is a gear speed increaser, used to transmit the rotational force of the external blades in the wind turbine generator to the generator, thereby improving the generator's power generation efficiency.
[0003] In existing wind turbine gearboxes, the gear ratios within the gear sets result in speed differences between different gears. This uneven speed causes areas with higher speeds to heat up faster than those with lower speeds, leading to varying temperatures of the lubricating oil in different areas. Current technology presents a completely open gearbox without separate lubricating oil compartments, resulting in temperature differences within the lubricating oil. A uniform approach to addressing this would waste energy. Therefore, this application proposes a novel implementation scheme for wind turbine gearboxes and their cooling systems, differing from existing technologies. Summary of the Invention
[0004] Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a wind turbine gearbox, primarily to solve the problem that the gearbox cannot adjust the lubricating oil cooling status in a timely manner according to the internal temperature of the gearbox during use.
[0005] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: A wind turbine gearbox includes a base plate, and an intelligent control component, a directional switching mechanism, a dual-circulation partitioned oil pump component, an intelligent heat dissipation component, and a lubrication supply component are disposed on the top of the base plate. The dual-circulation separator pump oil assembly includes a gearbox assembly, which includes a housing; The housing is equipped with a mounting base, and a built-in partition oil tank is rotatably connected inside the mounting base. The built-in partition oil tank divides the housing into a left lubrication chamber and a right lubrication chamber. The built-in partition oil tank is a circular disc structure with a shaft hole in the middle, and the two sides of the built-in partition oil tank are arc-shaped protrusions. The housing is equipped with an oil inlet chamber, and the internal partition oil tank is equipped with an oil inlet, which can be connected to the oil inlet chamber. The internal partitioned oil tank is welded with a partition plate, which divides the internal partitioned oil tank into a left oil inlet chamber and a right oil inlet chamber. The arc-shaped outer wall of the left oil inlet chamber has multiple first oil inlet holes and multiple oil return holes. The first oil inlet holes are spiral holes, and the oil return holes are straight holes. The left lubrication chamber of the housing and the left oil inlet chamber form an internal circulation oil circuit system. Multiple second oil inlets are opened on the arc-shaped outer wall of the right oil inlet chamber. The second oil inlets are straight holes. The right lubrication chamber of the housing and the right oil inlet chamber form an external circulation oil circuit system. The lubrication supply assembly includes a lubricating oil tank, and an oil filter assembly is installed on one outer wall of the lubricating oil tank.
[0006] (III) Beneficial Effects Compared with the prior art, the present invention provides a wind turbine gearbox with the following advantages: 1. The device has a switching mode through the directional switching mechanism, so that it does not need to stop work during maintenance.
[0007] 2. The design of the built-in dividing oil tank, consisting of a circular arc-shaped disc, internally welded partition plates, oil inlet holes of different specifications, and dynamic seals on both sides, achieves a synergistic effect. This allows the built-in dividing oil tank to perform three functions: dividing, storing, and pumping oil. The highly integrated structure can divide the gearbox into two regions with different speeds according to the different gear speed ratios at both ends, and formulate separate heat dissipation schemes. It can also realize the internal oil storage function. Furthermore, the partition plates of the built-in dividing oil tank itself divide it into a left oil inlet chamber and a right oil inlet chamber, which makes it easy for the device to set the oil inlet speed according to different regions. It can also set different oil circulation paths according to the heating rate, avoiding the energy waste caused by the unified oil path and unified heat dissipation in the existing technology.
[0008] 3. By optimizing the air-cooling assembly in the intelligent heat dissipation components, the airflow turbulence can be improved, heat dissipation efficiency can be enhanced, wind resistance can be avoided, and efficient cooling can be achieved. Through the curved distribution of heat pipes, dual intelligent flow control valves and dual fans, a forced convection airflow channel is constructed to form a "downward blowing and upward suction" vortex airflow, which enhances heat exchange efficiency.
[0009] 4. Through the design of the oil filtration assembly, viscosity adaptive filtration switching is achieved to prevent high viscosity oil from affecting heat dissipation and lubrication, thus constructing a closed-loop intelligent lubrication circuit. Attached Figure Description
[0010] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of a partially separated structure of the present invention; Figure 3 This is a cross-sectional schematic diagram of the gearbox assembly of the present invention; Figure 4 This is a schematic cross-sectional view of the built-in partitioned oil tank structure of the present invention; Figure 5This is a side view of the internally separated fuel tank structure of the present invention; Figure 6 This is a schematic diagram of the intelligent heat dissipation component structure of the present invention; Figure 7 This is a partial structural diagram of the lubricating oil tank of the present invention; Figure 8 This is a cross-sectional view of the oil filtration assembly of the present invention; Figure 9 This is a schematic cross-sectional view of the lubricating oil tank of the present invention; Figure 10 This is a partial structural diagram of the lubricating oil tank of the present invention; Figure 11 This is a schematic diagram of the rear view structure of the present invention.
[0011] In the diagram: 1. Base plate; 2. Support; 3. Rotating seat; 4. Gearbox assembly; 401. Housing; 402. First temperature sensor; 403. Oil inlet female connector; 404. Oil outlet female connector; 405. Oil inlet chamber; 406. Mounting base; 407. Heat sink; 5. First motor; 6. Lubrication supply assembly; 601. Lubricating oil tank; 602. Variable frequency oil pump; 604. Liquid inlet pipe; 605. Second motor; 606. Mixing rack; 607. Second temperature sensor; 608. Heating assembly; 609. Refrigeration assembly; 610. Heat sink; 611. Heat sink pipe; 612. Heat sink fin plate; 613. Air-cooled assembly; Oil filter assembly; 6031, bottom pipe; 6032, top pipe; 6033, support shell; 6034, lower tee pipe; 6035, solenoid valve; 6036, oil filter; 6037, second check valve; 6038, upper tee pipe; 6039, viscometer; 7. Control panel; 10. Male oil inlet connector; 11. Female oil outlet connector; 12. Discharge pipe; 13. Connecting pipe; 14. Intelligent flow control valve; 15. Second electric push rod; 16. Support bracket; 17. Warning light; 18. Built-in partitioned oil tank; 1801. Oil inlet; 1802. Oil return hole; 1803. First oil inlet hole; 1804. Left oil inlet chamber; 1805. Right oil inlet chamber; 1806. Partition plate; 1807. Second oil inlet hole. Detailed Implementation
[0012] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0013] Reference Figures 1-10 A wind turbine gearbox includes a base plate 1, on the top of which are provided an intelligent control component, a directional switching mechanism, a dual-circulation partitioned oil pump component, an intelligent heat dissipation component, and a lubrication supply component 6. Two brackets 2 are fixed on the base plate 1, and the intelligent control component, the directional switching mechanism and the dual circulation separator oil pump component are set on the brackets 2; The intelligent control components include a control panel 7 and a warning light 17. The control panel 7 is a PLC controller panel. The control panel 7 and the warning light 17 are fixed to one side of one of the brackets 2 by bolts. The directional switching mechanism includes a first motor 5 and a rotating seat 3. The two ends of the rotating seat 3 are rotatably mounted in two brackets 2 through bearings. The first motor 5 is fixed to one side of one of the brackets 2 by bolts. One end of the output shaft of the first motor 5 is fixedly connected to the rotating seat 3 through a coupling. The first motor 5 is a servo motor with a self-locking function. An encoder is electrically connected to the first motor 5. Both the first motor 5 and the encoder are electrically connected to the control panel 7. When the first motor 5 is working, it can drive the rotating base 3 to rotate. like Figure 2 As shown, the dual-circulation separator pump oil assembly includes a gearbox assembly 4, and there are two gearbox assemblies 4. The rotating seat 3 is provided with two symmetrical mounting surfaces, and the two mounting surfaces can be fixedly connected to the gearbox assembly 4 by bolts. A support mechanism is provided on the substrate 1. The support mechanism includes two second electric push rods 15. The top ends of the two second electric push rods 15 are fixedly connected to the same horizontally placed support bracket 16. The specifications of the support bracket 16 are adapted to the specifications of the housing 401. Both second electric actuators 15 are electrically connected to linear potentiometers, and both second electric actuators 15 and linear potentiometers are electrically connected to control panel 7; The gearbox assembly 4 includes a housing 401, and a first temperature sensor 402 and an oil pressure sensor are installed inside the housing 401. The first temperature sensor 402 can detect the temperature of the lubricating oil inside the gearbox; The housing 401 is provided with an oil inlet female head 403 and an oil outlet female head 404. The oil inlet female head 403 is connected to an oil inlet male head 10, and the oil outlet female head 404 is connected to an oil outlet male head 11. Multiple heat sinks 407 are provided on the outer wall of the enclosure 401. The heat sinks 407 are strip-shaped fins, and the total area of the multiple heat sinks 407 accounts for 70%-85% of the total area of the enclosure 401.
[0014] like Figure 3As shown, a mounting base 406 is provided inside the housing 401, and an internal partition oil tank 18 is rotatably connected inside the mounting base 406. The internal partition oil tank 18 divides the housing 401 into a left lubrication chamber and a right lubrication chamber, which physically separate the two chambers with different heat loads and lubrication requirements. The built-in partitioned oil tank 18 is a circular disc structure with a shaft hole in the middle, which is used to install the rotating shaft; a gear is installed on the left end of the rotating shaft, and a gear is also installed on the output shaft at the end of the wind turbine blade. The two sets of gears mesh in the left lubrication chamber. Because the rotational speed of the shaft at the end of the wind turbine blade is slow, the rotational speed of the shaft meshing with its gear in the built-in partitioned oil tank 18 is also slow, and the corresponding gear meshing temperature rise rate is also slow, that is, the area with slow temperature rise in the left lubrication chamber. By changing the gear ratio at the right end of the shaft, while its own rotational speed is constant, the rotational speed of the gear meshing with its right end increases, resulting in an increase in the heating rate in the corresponding area, i.e., the area with the fastest heating in the right lubrication chamber. When the built-in partition oil tank 18 rotates, an oil film is formed between the built-in partition oil tank 18 and the mounting base 406, thereby forming a dynamic seal and reducing the flow of lubricating oil between the left and right lubrication chambers when the device rotates. The outer wall of one side of the housing 401 is provided with an oil inlet and an oil outlet for adding and discharging lubricating oil into the left lubrication chamber, which facilitates later maintenance. The housing 401 is provided with an oil inlet chamber 405, which is located below the oil inlet head 403. The internal partition oil tank 18 is provided with an oil inlet 1801, which can communicate with the oil inlet chamber 405. like Figure 4 and Figure 5 As shown, the two sides of the built-in separator oil tank 18 have arc-shaped protrusions, which can increase the contact area; The built-in partitioned oil tank 18 has a partition plate 1806 welded inside, which divides the built-in partitioned oil tank 18 into a left oil inlet chamber 1804 and a right oil inlet chamber 1805. The arc-shaped outer wall of the left oil inlet chamber 1804 has multiple first oil inlet holes 1803 and multiple oil return holes 1802. The first oil inlet holes 1803 are spiral holes, and the oil return holes 1802 are straight holes. The oil return holes have short and straight flow channels, low flow resistance, and high flow velocity. The spiral holes extend the flow channel length and increase flow resistance. Under the same conditions, compared with the straight holes, the volumetric flow rate and flow velocity will be significantly reduced. The diameter of the first oil inlet hole 1803 is smaller than the diameter of the oil return hole 1802. The first oil inlet hole 1803 is located at the highest point of the arc-shaped outer wall, that is, near the shaft hole in the middle of the internal partition oil tank 18. The oil return hole 1802 is located at the edge of the arc-shaped outer wall, that is, near the edge of the internal partition oil tank 18. The left lubrication chamber of housing 401 and the left oil inlet chamber 1804 form an internal circulation oil circuit system; Since the rotational speed of the built-in partitioned oil tank 18 is affected by the rotational speed of the wind turbine blades, the rotational speed of the built-in partitioned oil tank 18 is of the slow-speed type. However, due to the arc-shaped protrusion, when the object rotates, the centrifugal force will form a shallow vortex that concentrates in the middle. At this time, a small amount of lubricating oil is thrown out from the first oil inlet hole 1803. Since both the left and right lubrication chambers are filled with lubricating oil, the built-in separator oil tank 18 is completely submerged. During rotation, the lubricating oil at the edge and the built-in separator oil tank 18 rotate synchronously, achieving relative stillness. After the lubricating oil in the left oil inlet chamber 1804 is thrown out, the pressure in the left oil inlet chamber 1804 decreases, and the pressure in the left lubrication chamber is greater than the pressure in the left oil inlet chamber 1804. At low speeds, the pressure difference is sufficient to push some lubricating oil back from the return oil hole 1802 into the left oil inlet chamber 1804, thereby realizing internal oil circulation until the built-in separator oil tank 18 stops rotating, the pressure difference disappears, and the two sides regain balance.
[0015] Multiple second oil inlet holes 1807 are opened on the arc-shaped outer wall of the right oil inlet cavity 1805. The second oil inlet holes 1807 are straight through holes. The diameter of the first oil inlet hole 1803 is smaller than the diameter of the second oil inlet hole 1807. At the same rotational speed, the oil inlet speed of the first oil inlet hole 1803 is lower than the oil inlet speed of the second oil inlet hole 1807. The right lubrication chamber of housing 401 and the right oil inlet chamber 1805 form an external circulation oil circuit system; like Figure 6 and Figure 7 As shown, the intelligent heat dissipation component includes a heat dissipation frame 610 and a heat dissipation pipe 611. The heat dissipation frame 610 has no obstruction on both sides and is open to the atmosphere. The bottom end of the heat dissipation frame 610 is fixed to the base plate 1 by bolts, and the heat dissipation pipe 611 is fixed inside the heat dissipation frame 610. The heat dissipation pipes 611 are distributed in a curved shape, and both ends of the heat dissipation pipes 611 are sealed and fixed with intelligent flow control valves 14. Multiple inclined heat dissipation fins 612 are welded onto the heat pipe 611. The heat sink 610 is equipped with an air cooling assembly 613, which consists of a blower fan and a suction fan, with two blowers and two suction fans. like Figure 7 and Figure 8 As shown, the lubrication supply assembly 6 includes a lubrication oil tank 601, which is fixed to the base plate 1 by bolts. A connecting pipe 13 is sealed and inserted into the lubricating oil tank 601. One end of the connecting pipe 13 is sealed and fixed to the intelligent flow control valve 14 at one end of the heat dissipation pipe 611. An outlet pipe 12 is sealed and connected to the intelligent flow control valve 14 at the other end of the heat dissipation pipe 611. The outlet pipe 12 is fixedly connected to the oil outlet male connector 11. An oil filter assembly 603 is provided on one outer wall of the lubricating oil tank 601; The oil filtration assembly 603 includes a lower tee pipe 6034, two oil filters 6036, two check valves 6037, an upper tee pipe 6038, two viscosity meters 6039, and a support housing 6033; The support shell 6033 is fixed to the outer wall of one side of the lubricating oil tank 601 by bolts, and the two oil filters 6036 are fixed inside the support shell 6033 by bolts. A viscosity meter 6039 is sealed and fixed at the bottom end of the lower tee pipe 6034, and a bottom pipe 6031 is sealed and fixed at the bottom end of the viscosity meter 6039. The bottom pipe 6031 is sealed and connected to the lubricating oil tank 601. A solenoid valve 6035 is fixed at each of the other two ends of the lower tee pipe 6034, and one end of each solenoid valve 6035 is sealed to two oil filters 6036 respectively. By controlling the on / off state of the two solenoid valves 6035, the filter channel through which the lubricating oil goes is determined. The top ends of the two oil filters 6036 are respectively sealed and fixed to two one-way valves 6037. One end of the two one-way valves 6037 is sealed and fixed to the upper three-way pipe 6038. The top end of the upper three-way pipe 6038 is sealed and fixed to the viscometer 6039. A smart flow control valve 14 is fixed to the top end of the viscometer 6039. The smart flow control valve 14 is sealed and connected to the top pipe 6032. A variable frequency oil pump 602 is fixed to the lubricating oil tank 601 by bolts. The oil inlet pipe of the variable frequency oil pump 602 is sealed to the top pipe 6032. The oil outlet pipe of the variable frequency oil pump 602 is connected to an intelligent flow control valve 14. The other end of the intelligent flow control valve 14 is connected to an inlet pipe 604. The inlet pipe 604 is fixedly connected to the oil inlet male connector 10. When gears mesh, they produce metal scraps. As insoluble solid contaminants, these metal scraps are suspended in the oil and interfere with the normal sliding between oil molecules. As the concentration of metal scraps increases, the effective flow channels inside the oil become narrower, the relative movement between molecules is hindered, and the internal friction increases. This usually manifests as a slight increase in apparent viscosity. At this time, the oil filter 6036 is used to filter the metal scraps in the lubricating oil. One viscometer 6039 measures the viscosity of the lubricating oil before it enters the oil filter assembly 603, and another measures the viscosity of the lubricating oil after it leaves the oil filter assembly 603. like Figure 9As shown, a mixing component is provided on the lubrication supply component 6. The mixing component includes a second motor 605, which is fixed to the upper surface of the lubrication tank 601 by bolts. A mixing rack 606 is fixed on the output shaft of the second motor 605.
[0016] like Figure 10 As shown, a second temperature sensor 607, a heating assembly 608, and a cooling assembly 609 are fixed on the lubricating oil tank 601; The heating assembly 608 includes a thermostat and a heating element, the heating element being located inside the lubricating oil tank 601, and the thermostat and control panel 7 being electrically connected. The refrigeration assembly 609 includes a temperature-conducting plate, a semiconductor refrigeration chip, a bracket, and a cooling fan. The lubricating oil tank 601 has an installation port. The temperature-conducting plate is embedded and sealed inside the installation port. The heat-absorbing surface of the semiconductor refrigeration chip is in contact with the temperature-conducting plate. The bracket is fixed on one side of the installation port. The cooling fan is fixed on the bracket and aligned with the heat-dissipating surface of the semiconductor refrigeration chip. The second temperature sensor 607 can detect the temperature of the lubricating oil in the oil tank, and the heating assembly 608 and the cooling assembly 609 can heat and cool the lubricating oil. When the viscosity meter 6039 located below detects that the viscosity of the lubricating oil before it enters the oil filter assembly 603 is too high, first determine whether the oil temperature fed back by the oil tank temperature regulation module is normal and within the set range. If it is not normal, stop the oil supply and start the heating assembly 608 and the cooling assembly 609 to adjust the oil temperature to be within the set range, so as to avoid high viscosity due to low oil temperature. If the lubricating oil temperature fails to return to the set range, warning light 17 will activate to alert staff and simultaneously send a warning to the system, prompting back-end personnel to arrange for the inspection and repair of heating assembly 608 and cooling assembly 609 to troubleshoot the problem.
[0017] When the oil temperature feedback from the oil tank temperature regulation module is normal, continue to add oil and analyze the data from the next viscosity meter 6039. If the viscosity returns to the normal range, it means that the lubricating oil contains impurities that have been processed by the filtration system. If the data from the next viscosity meter 6039 does not return to normal, the filtration system will be switched. One of the solenoid valves 6035 will be closed, allowing the fluid to be filtered by another set of oil filters 6036. If the viscosity meter 6039 detects that the fluid has returned to normal after the switch, it means that the previous set of oil filters 6036 needs to be cleaned or replaced. At this time, the warning light 17 will be activated to alert the staff and simultaneously send a warning to the system to remind the back-end personnel to arrange maintenance. If the viscosity is still abnormal after the above operations, check whether the switched filter system is the old system that was used before and not replaced. If it is the old system, the warning light 17 will be activated to remind the staff to pay attention and at the same time issue a warning to the system to remind the back-end staff to arrange for the replacement of the oil filter 6036. If it is a new system, it proves that an unknown cause has led to excessive viscosity of the lubricating oil, such as oxidation or contamination. This situation will cause chemical deterioration, resulting in changes in viscosity. The oil filter 6036 can no longer filter it and a complete overhaul is required.
[0018] The working principle of this embodiment is as follows: First, lubricating oil is added to the left lubrication chamber through the oil inlet on the housing 401. As the oil is added, the lubricating oil will slowly enter the left oil inlet chamber 1804 from the oil return hole 1802, and eventually fill the left oil inlet chamber 1804 and the left lubrication chamber. The two ends of the gearbox housing 401 are connected to the wind turbine blade shaft end and the generator shaft end respectively, thereby completing the exchange and transmission of the rotational force of the wind turbine blade and the speed change; in this process, the left lubrication chamber corresponds to the meshing area of the wind turbine blade shaft with slow temperature rise, and the right lubrication chamber corresponds to the meshing area of the generator shaft with fast temperature rise. When working, the variable frequency oil pump 602 starts to work, and the lubricating oil in the lubricating oil tank 601 enters the oil filter assembly 603 from the bottom pipe 6031, enters the inlet pipe 604 from the top pipe 6032, and enters the inlet chamber 405 from the inlet male head 10 for storage. At this time, the built-in partition oil tank 18 has been driven to rotate, and an oil film is formed between the built-in partition oil tank 18 and the mounting base 406, thereby forming a dynamic seal and reducing the flow of lubricating oil between the left lubrication chamber and the right lubrication chamber when the device rotates. When the oil inlet 1801 is connected to the oil inlet chamber 405, the presence of the external oil pump causes the oil inlet chamber 405 to be pressurized. At this time, the lubricating oil enters the right oil inlet chamber 1805 quickly under the pressure. As the lubricating oil increases, the right oil inlet chamber 1805 gradually fills up, while the oil in the built-in partition oil tank 18 is thrown out by the centrifugal force during rotation, eventually filling the entire right lubrication chamber. When thrown out, because the second oil inlet hole 1807 is a straight hole, the flow channel is short and straight, the flow resistance is small, and the diameter is larger than that of the first oil inlet hole 1803, its throwing speed is greater than that of the first oil inlet hole 1803. When the equipment is working, the left lubrication chamber is close to the end of the wind turbine blade, where the gear meshing speed is slow and the lubricating oil temperature rises slowly. The first oil inlet hole 1803 is a spiral hole, which has a slow throwing speed, which is suitable for it. Furthermore, the first oil inlet hole 1803 is located at the highest point of the arc-shaped outer wall, and the return oil hole 1802 is located at the edge. The lubricating oil is thrown out from the first oil inlet hole 1803 and, under the pressure brought by centrifugation, flows back from the return oil hole 1802. The lubricating oil that returns to the left oil inlet chamber 1804 exchanges heat with the lubricating oil that just entered the right oil inlet chamber 1805, which lowers the temperature of the lubricating oil. With the centrifugal force, the lubricating oil that has cooled down returns to the left lubrication chamber and exchanges heat with the lubricating oil inside it, thereby lowering the temperature of the lubricating oil in the entire left lubrication chamber. This makes the left lubrication chamber and the left oil inlet chamber 1804 form an internal circulation oil circuit system. During the continuous circulation and constant oil renewal process, this heat exchange is ongoing, which can transfer some of the heat from the left lubrication chamber to the new oil in the right oil inlet chamber to a certain extent, thus playing a certain role in pre-cooling or temperature equalization. The right lubrication chamber is close to the generator, with high rotation speed, fast gear meshing speed, and fast lubricating oil temperature rise. The second oil inlet hole 1807 is a straight hole with fast oil inlet speed, and returns to the lubricating oil tank 601 through the oil outlet male head 11, so that the right lubrication chamber and the right oil inlet chamber 1805 form an external circulation oil circuit system. During maintenance, the operator first disconnects the male oil inlet connector 10 and the female oil outlet connector 11, opens the oil outlet, and catches the flowing lubricating oil; then the transmission rod on the old housing 401 is separated from the wind turbine fan blade shaft and the generator shaft respectively. Subsequently, the two electric push rods 15 are lowered to release the lock of the first motor 5. The shaft is rotated 180° to replace the upper and lower housings 401, and the new gearbox shaft is connected to the wind turbine blade shaft and generator shaft. Then, the first motor 5 is locked, the electric push rod 15 rises, and the support bracket 16 provides support for the gearbox assembly; while the operator can remove the old gearbox from the base and disassemble or repair it. Reconnect the male inlet connector 10 and the female outlet connector 11, and add lubricating oil.
[0019] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can control it.
[0020] In the description herein, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0021] In the description herein, it should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0022] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A wind turbine gearbox, comprising a base plate, characterized in that, The top of the substrate is provided with an intelligent control component, a directional switching mechanism, a dual-circulation separator oil pump component, an intelligent heat dissipation component, and a lubrication supply component; The dual-circulation separator pump oil assembly includes a gearbox assembly, which includes a housing; The housing is equipped with a mounting base, and a built-in partition oil tank is rotatably connected inside the mounting base. The built-in partition oil tank divides the housing into a left lubrication chamber and a right lubrication chamber. The built-in partition oil tank is a circular disc structure with a shaft hole in the middle, and the two sides of the built-in partition oil tank are arc-shaped protrusions. The housing is equipped with an oil inlet chamber, and the internal partition oil tank is equipped with an oil inlet, which can be connected to the oil inlet chamber. The internal partitioned oil tank is welded with a partition plate, which divides the internal partitioned oil tank into a left oil inlet chamber and a right oil inlet chamber. The arc-shaped outer wall of the left oil inlet chamber has multiple first oil inlet holes and multiple oil return holes. The first oil inlet holes are spiral holes, and the oil return holes are straight holes. The left lubrication chamber of the housing and the left oil inlet chamber form an internal circulation oil circuit system. Multiple second oil inlets are opened on the arc-shaped outer wall of the right oil inlet chamber. The second oil inlets are straight holes. The right lubrication chamber of the housing and the right oil inlet chamber form an external circulation oil circuit system. The lubrication supply assembly includes a lubricating oil tank, and an oil filter assembly is installed on one outer wall of the lubricating oil tank.
2. The wind turbine gearbox according to claim 1, characterized in that: Two brackets are fixed on the base plate. The intelligent control component includes a control panel and a warning light. The control panel is a PLC controller panel. The control panel and the warning light are fixed to one side of one of the brackets by bolts.
3. A wind turbine gearbox according to claim 1, characterized in that: The directional switching mechanism includes a first motor and a rotating base. The two ends of the rotating base are rotatably mounted in two brackets through bearings. The first motor is fixed to one side of one of the brackets by bolts. One end of the output shaft of the first motor is fixedly connected to the rotating base through a coupling.
4. A wind turbine gearbox according to claim 2, characterized in that: The substrate is provided with a support mechanism, which includes two second electric push rods. The top ends of the two second electric push rods are fixedly connected to the same horizontally placed support bracket. Both second electric push rods are electrically connected to a linear potentiometer. Both second electric push rods and the linear potentiometers are electrically connected to the control panel.
5. A wind turbine gearbox according to claim 1, characterized in that: The housing is equipped with a first temperature sensor and an oil pressure sensor; the outer wall of the housing is equipped with multiple heat sinks, which are strip-shaped fins.
6. A wind turbine gearbox according to claim 1, characterized in that: The intelligent heat dissipation component includes a heat dissipation frame and heat dissipation pipes. The bottom end of the heat dissipation frame is fixed to the base plate by bolts, and the heat dissipation pipes are fixed inside the heat dissipation frame. The heat dissipation pipes are distributed in a curved shape, and intelligent flow control valves are sealed and fixed at both ends of the heat dissipation pipes. Multiple inclined heat dissipation fins are welded on the heat dissipation pipes, and an air cooling assembly is provided on the heat dissipation frame, which consists of a blower fan and a suction fan.
7. A wind turbine gearbox according to claim 6, characterized in that: The housing is equipped with an oil inlet female and an oil outlet female. The oil inlet female is connected to an oil inlet male, and the oil outlet female is connected to an oil outlet male. The lubricating oil tank is fixed to the base plate by bolts. A connecting pipe is sealed and inserted into the lubricating oil tank. One end of the connecting pipe is sealed and fixed to the intelligent flow control valve at one end of the heat dissipation pipe. The intelligent flow control valve at the other end of the heat dissipation pipe is sealed and connected to the liquid outlet pipe, which is fixedly connected to the oil outlet male connector.
8. A wind turbine gearbox according to claim 7, characterized in that: The oil filtration assembly includes a lower tee pipe, two oil filters, two one-way valves, an upper tee pipe, a viscometer, and a support housing; Two oil filters are fixed inside the support housing by bolts; a viscosity meter is sealed and fixed at the bottom of the lower tee pipe, and a bottom pipe is sealed and fixed at the bottom of the viscosity meter, which is in sealed communication with the lubricating oil tank; a solenoid valve is fixed at each of the other two ends of the lower tee pipe, and one end of each solenoid valve is sealed and connected to the two oil filters respectively. The tops of the two oil filters are sealed and fixed to two one-way valves respectively. One end of the two one-way valves is sealed and fixed to the upper tee pipe. The top of the upper tee pipe is sealed and fixed to the viscometer. The top of the viscometer is fixed with an intelligent flow control valve, which is sealed and connected to the top pipe.
9. A wind turbine gearbox according to claim 7, characterized in that: A variable frequency oil pump is fixed to the lubricating oil tank by bolts. The oil inlet pipe of the variable frequency oil pump is sealed to the top pipe. The oil outlet pipe of the variable frequency oil pump is connected to an intelligent flow control valve. The other end of the intelligent flow control valve is connected to an inlet pipe, which is fixedly connected to an oil inlet male connector.
10. A wind turbine gearbox according to claim 1, characterized in that: The lubrication supply assembly is equipped with a mixing component, which includes a second motor. The second motor is fixed to the upper surface of the lubricating oil tank by bolts, and a mixing rack is fixed on the output shaft of the second motor.