A large megawatt offshore wind turbine gearbox

Abstract

The utility model relates to gear box processing technical field discloses a kind of large megawatt offshore wind turbine gear box, including cabinet, the side fixed connection of cabinet has storage tank, the side fixed connection of storage tank has liquid pump, the one end fixed connection of storage tank has catheter, the one end fixed connection of catheter has filter, the side mounting of filter has first filter screen, the side mounting of filter has second filter screen, the inner wall fixed connection of cabinet has shunt pipe, the side fixed connection of shunt pipe has shower head, the one end fixed connection of catheter has circulating pump.In the utility model, through the connection of cabinet and storage tank, lubricating oil can be stored, the liquid pump is connected on storage tank, filter and circulating pump are connected through catheter, shunt pipe and shower head are installed inside cabinet, lubricating oil can be circulated and sprayed, and the effect of circulating and spraying lubricating oil is achieved.

Description

Technical Field

[0001] This utility model relates to the field of gearbox processing technology, and in particular to a gearbox for a large-megawatt offshore wind turbine. Background Technology

[0002] As the global energy structure shifts towards cleaner and lower-carbon energy, offshore wind power, with its abundant wind energy resources, high power generation efficiency, and lack of land-based resource consumption, has become a significant growth engine in the renewable energy sector. The low-speed rotation of the wind turbine after capturing wind energy needs to be accelerated to the high-speed rotation required by the generator through a multi-stage gearbox, thus achieving efficient conversion of mechanical energy into electrical energy. Its performance directly affects the unit's power generation efficiency, operational stability, and service life, and is one of the core indicators for evaluating the unit's technological level.

[0003] Existing large-megawatt offshore wind turbine gearboxes require lubricating oil to rotate during operation. This prevents the gearbox from stopping due to excessive friction caused by excessive rotation speed. Therefore, manual lubrication of the gearbox is necessary. However, existing large-megawatt offshore wind turbines are built quite high, requiring manual climbing, making the lubrication process overly complicated. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a gearbox for a large-megawatt offshore wind turbine, aiming to improve the problem of overly cumbersome gearbox lubrication.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a gearbox for a large-megawatt offshore wind turbine, comprising a housing, a storage tank fixedly connected to one side of the housing, a liquid pump fixedly connected to one side of the storage tank, a conduit fixedly connected to one end of the storage tank, a filter fixedly connected to one end of the conduit, a first filter screen installed on one side of the filter, a second filter screen installed on one side of the filter, a diversion pipe fixedly connected to the inner wall of the housing, a nozzle fixedly connected to one side of the diversion pipe, a circulation pump fixedly connected to one end of the conduit, and a shock-absorbing component provided on one side of the housing.

[0006] According to the above technical solution: the housing is connected to a storage tank for storing lubricating oil, the storage tank is connected to a pump, the housing is connected to a conduit, the conduit is connected to a filter, the pump draws the lubricating oil into the filter, the filter is equipped with a first filter screen and a second filter screen, used to filter impurities in the lubricating oil, and can be cleaned one by one during cleaning without interrupting the filtration of the lubricating oil. The filtered lubricating oil is transported to a distribution pipe, the distribution pipe is connected to a nozzle, which evenly sprays the lubricating oil onto the gears to ensure the normal operation of the gearbox, and the lubricating oil dripping after spraying enters the circulation pump through the bottom conduit, and then transports the lubricating oil back to the storage tank, achieving the effect of circulating spraying.

[0007] Preferably, the shock absorption assembly includes a fixed plate, one side of which is fixedly connected to one side of the housing, a damper is fixedly connected to the bottom end of the fixed plate, a spring is installed at one end of the damper, a base plate is fixedly connected to the bottom end of the damper, and a buffer assembly is provided at the bottom end of the fixed plate.

[0008] Preferably, the buffer assembly includes a fixed post, the upper end of which is fixedly connected to the bottom end of a fixed plate, a connecting block fixedly connected to one end of the fixed post, a connecting rod rotatably connected to one end of the connecting block, a limit block fixedly connected to one side of the connecting block, a connecting post slidably connected to the inner wall of the limit block, and one side of the spring mounted on the outer wall of the connecting post.

[0009] Preferably, a housing is fixedly connected to the bottom end of the base plate, and one end of the housing is installed at the bottom end of the fixed plate.

[0010] Preferably, one side of the spring is mounted on one end of the limiting block, and one side of the limiting block is slidably connected to one side of the base plate.

[0011] Preferably, one end of the connecting column is fixedly connected to one side of the base plate.

[0012] Preferably, one end of the circulating pump is fixedly connected to the upper end of the fixing plate.

[0013] Preferably, one side of the spring is mounted on the bottom end of the fixed plate.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, the connection between the box and the storage box allows for the storage of lubricating oil. The storage box is connected to a pump, and a filter and a circulation pump are connected through a conduit. The box is equipped with a diversion pipe and a nozzle, which allows for the circulation spraying of lubricating oil. The filter is equipped with a first filter screen and a second filter screen. The operation of the filter is not interrupted when cleaning the filter screen, thus achieving the effect of circulating spraying of lubricating oil.

[0016] 2. In this utility model, the damper and spring are connected to achieve the effect of shock absorption. The connecting block and connecting rod are connected to the limiting block and spring to achieve the effect of buffering. The fixed column and fixed plate are connected, and the base plate is connected to the damper and the housing, thus achieving the effect of shock absorption and buffering of the gearbox. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of a gearbox for a large-megawatt offshore wind turbine proposed in this utility model;

[0018] Figure 2 This is a front view schematic diagram of a gearbox for a large-megawatt offshore wind turbine proposed in this utility model;

[0019] Figure 3 This is a cross-sectional schematic diagram of a gearbox for a large-megawatt offshore wind turbine proposed in this utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of a gearbox for a large-megawatt offshore wind turbine proposed in this utility model.

[0021] Legend:

[0022] 1. Box body; 2. Storage tank; 3. Liquid pump; 4. Conduit; 5. Filter; 6. First filter screen; 7. Second filter screen; 8. Circulation pump; 9. Diverter pipe; 10. Nozzle; 11. Fixing plate; 12. Damper; 13. Spring; 14. Fixing column; 15. Connecting block; 16. Connecting rod; 17. Limiting block; 18. Connecting column; 19. Base plate; 20. Housing. Detailed Implementation

[0023] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] Reference Figures 1-3 This utility model provides an embodiment of a large-megawatt offshore wind turbine gearbox, comprising a housing 1, a storage tank 2 fixedly connected to one side of the housing 1, a liquid pump 3 fixedly connected to one side of the storage tank 2, a conduit 4 fixedly connected to one end of the storage tank 2, a filter 5 fixedly connected to one end of the conduit 4, a first filter screen 6 installed on one side of the filter 5, a second filter screen 7 installed on one side of the filter 5, a diversion pipe 9 fixedly connected to the inner wall of the housing 1, a nozzle 10 fixedly connected to one side of the diversion pipe 9, a circulation pump 8 fixedly connected to one end of the conduit 4, and a shock-absorbing component provided on one side of the housing 1.

[0025] Specifically, the housing 1 is connected to a storage tank 2 for storing lubricating oil. The storage tank 2 is connected to a pump 3. The housing 1 is connected to a conduit 4, which in turn connects to a filter 5. The pump 3 draws the lubricating oil into the filter 5. The filter 5 is equipped with a first filter screen 6 and a second filter screen 7 to filter impurities in the lubricating oil. These screens can be cleaned individually without interrupting the normal filtration of the lubricating oil by the filter 5. The filtered lubricating oil is then transported to a distribution pipe 9, which is connected to a nozzle 10. This nozzle sprays the lubricating oil evenly onto the gears, ensuring the normal operation of the gearbox. The lubricating oil dripping after spraying enters the circulation pump 8 through the bottom conduit 4 and is then transported back to the storage tank 2, achieving a circulating spray of the lubricating oil. This eliminates the need for manual lubrication of the gearbox and improves work efficiency.

[0026] Reference Figure 4 The shock absorption assembly includes a fixed plate 11, one side of which is fixedly connected to one side of the housing 1. A damper 12 is fixedly connected to the bottom end of the fixed plate 11. A spring 13 is installed at one end of the damper 12. A base plate 19 is fixedly connected to the bottom end of the damper 12. A buffer assembly is provided at the bottom end of the fixed plate 11.

[0027] Specifically, the housing 1 is connected to the fixing plate 11, the fixing plate 11 is connected to the damper 12, the damper 12 is mounted on the spring 13, and the damper 12 is connected to the base plate 19. Through the connection of the damper 12 and the spring 13, the damper can play a role in damping vibration when the gearbox is operating, thus preventing the gearbox from being interrupted due to strong vibration.

[0028] Reference Figure 4 The buffer assembly includes a fixed post 14, the upper end of which is fixedly connected to the bottom end of the fixed plate 11. A connecting block 15 is fixedly connected to one end of the fixed post 14. A connecting rod 16 is rotatably connected to one end of the connecting block 15. A limit block 17 is fixedly connected to one side of the connecting block 15. A connecting post 18 is slidably connected to the inner wall of the limit block 17. One side of the spring 13 is installed on the outer wall of the connecting post 18.

[0029] Specifically, the fixed column 14 is connected to the fixed plate 11 and the fixed column 14 is connected to the connecting block 15. When the fixed column 14 is pressed down, the connecting rod 16 can be rotated through the connection of the connecting block 15 and the connecting rod 16. The connecting rod 16 is connected to the limiting block 17. The limiting block 17 is connected to the spring 13. The elastic force of the spring 13 can play a buffering role. When the gearbox is subjected to severe vibration, it plays a buffering role.

[0030] Reference Figures 2-4 The bottom end of the base plate 19 is fixedly connected to the housing 20, and one end of the housing 20 is installed at the bottom end of the fixing plate 11.

[0031] Specifically, the base plate 19 is connected to the housing 20, and the housing 20 is connected to the fixing plate 11. When the fixing plate 11 is subjected to pressure, it achieves a fixing effect through its connection with the housing 20.

[0032] Reference Figure 4 One side of the spring 13 is installed at one end of the limiting block 17, and one side of the limiting block 17 is slidably connected to one side of the base plate 19.

[0033] Specifically, spring 13 is connected to limit block 17, and limit block 17 can move by the elastic force of spring 13, and slides in connection with base plate 19.

[0034] Reference Figure 4 One end of the connecting column 18 is fixedly connected to one side of the base plate 19.

[0035] Specifically, the connecting column 18 is connected to the base plate 19, which can fix the connecting column 18 and ensure the movement of the spring 13 and the limit block 17.

[0036] Reference Figures 1-3 One end of the circulating pump 8 is fixedly connected to the upper end of the fixed plate 11.

[0037] Specifically, the circulating pump 8 is connected to the fixed plate 11, enabling the circulating pump 8 to operate normally.

[0038] Reference Figures 2-4 One side of the spring 13 is mounted on the bottom end of the fixed plate 11.

[0039] Specifically, the spring 13 is connected to the fixed plate 11, so that the spring 13 can be subjected to the force of the fixed plate 11, thereby achieving the effect of shock absorption.

[0040] Working Principle: When using this large-megawatt offshore wind turbine gearbox, the housing 1 is connected to a storage tank 2 for storing lubricating oil. The storage tank 2 is connected to a pump 3. The housing 1 is connected to a conduit 4, which in turn connects to a filter 5. The pump 3 draws the lubricating oil into the filter 5. The filter 5 contains a first filter screen 6 and a second filter screen 7 to filter impurities from the lubricating oil. During cleaning, each screen can be cleaned individually without interrupting the normal filtration of the lubricating oil by the filter 5. The filtered lubricating oil is then transported to a distribution pipe 9, which is connected to a nozzle 10. This nozzle sprays the lubricating oil evenly onto the gears, ensuring the normal operation of the gearbox. The lubricating oil dripping after spraying enters the circulation pump 8 through the bottom conduit 4, and is then transported back to the storage tank. In storage tank 2, tank body 1 is connected to fixed plate 11, fixed plate 11 is connected to damper 12, damper 12 is installed with spring 13, fixed plate 11 is connected to fixed column 14, fixed column 14 is connected to connecting block 15, connecting block 15 is connected to connecting rod 16, connecting block 15 is connected to limit block 17, limit block 17 is connected to connecting column 18, connecting column 18 is installed with spring 13, the connecting block 15 drives the rotation of connecting rod 16, causing limit block 17 to slide, connecting column 18 is connected to base plate 19, base plate 19 is connected to the inside of housing 20, which can play a role in shock absorption for wind turbine gearbox. This device can not only circulate lubrication for gearbox, but also ensure normal filtration without delaying the cleaning of filter screen, and can also reduce shock and buffer.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A gearbox for a large-megawatt offshore wind turbine, comprising a housing (1), characterized in that: A storage tank (2) is fixedly connected to one side of the housing (1), a liquid pump (3) is fixedly connected to one side of the storage tank (2), a conduit (4) is fixedly connected to one end of the storage tank (2), a filter (5) is fixedly connected to one end of the conduit (4), a first filter screen (6) is installed on one side of the filter (5), a second filter screen (7) is installed on one side of the filter (5), a diversion pipe (9) is fixedly connected to the inner wall of the housing (1), a nozzle (10) is fixedly connected to one side of the diversion pipe (9), a circulation pump (8) is fixedly connected to one end of the conduit (4), and a shock-absorbing component is provided on one side of the housing (1).

2. The gearbox for a large-megawatt offshore wind turbine according to claim 1, characterized in that: The shock absorption assembly includes a fixed plate (11), one side of which is fixedly connected to one side of the housing (1), a damper (12) is fixedly connected to the bottom end of the fixed plate (11), a spring (13) is installed at one end of the damper (12), a base plate (19) is fixedly connected to the bottom end of the damper (12), and a buffer assembly is provided at the bottom end of the fixed plate (11).

3. The gearbox for a large-megawatt offshore wind turbine according to claim 2, characterized in that: The buffer assembly includes a fixed column (14), the upper end of which is fixedly connected to the bottom end of the fixed plate (11). One end of the fixed column (14) is fixedly connected to a connecting block (15), and one end of the connecting block (15) is rotatably connected to a connecting rod (16). One side of the connecting block (15) is fixedly connected to a limit block (17), and the inner wall of the limit block (17) is slidably connected to a connecting column (18). One side of the spring (13) is installed on the outer wall of the connecting column (18).

4. The gearbox for a large-megawatt offshore wind turbine according to claim 2, characterized in that: The bottom end of the base plate (19) is fixedly connected to the housing (20), and one end of the housing (20) is installed at the bottom end of the fixing plate (11).

5. A gearbox for a large-megawatt offshore wind turbine according to claim 3, characterized in that: One side of the spring (13) is mounted on one end of the limiting block (17), and one side of the limiting block (17) is slidably connected to one side of the base plate (19).

6. A gearbox for a large-megawatt offshore wind turbine according to claim 3, characterized in that: One end of the connecting column (18) is fixedly connected to one side of the base plate (19).

7. A gearbox for a large-megawatt offshore wind turbine as described in claim 1, characterized in that: One end of the circulating pump (8) is fixedly connected to the upper end of the fixed plate (11).

8. A gearbox for a large-megawatt offshore wind turbine according to claim 2, characterized in that: One side of the spring (13) is mounted on the bottom end of the fixing plate (11).

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