Oiling equipment for gearbox of wind driven generator

Abstract

The utility model discloses oiling equipment for a gearbox of a wind driven generator, and relates to the technical field of oiling equipment. The device comprises an oil cylinder, a lower receiving hopper is connected to the lower portion of the oil cylinder in a clamped mode, a filtering assembly is arranged in the lower receiving hopper, a connecting pipe is fixedly connected to the bottom end of the lower receiving hopper, an oil injection pipe is fixedly connected to the end, away from the lower receiving hopper, of the connecting pipe, and an oil quantity adjusting assembly is arranged on one side of the oil injection pipe and located in the connecting pipe. According to the oil quantity adjusting device for the gearbox of the wind driven generator, due to the arrangement of the oil quantity adjusting assembly, lubricating oil in the connecting pipe is used for conducting quantity-controlled oil injection on the gearbox of the wind driven generator through the oil injection pipe, and the problem that a large amount of lubricating oil enters the gearbox to cause injection or overflow is solved; and the lubricating oil in the oil cylinder can be directly injected into the oil injection pipe through the lower receiving hopper and the connecting pipe, so that an oil pump is avoided, and the damage of the injection pressure of the lubricating oil to parts in the gearbox is prevented.

Description

Technical Field

[0001] This utility model belongs to the technical field of oil injection equipment, and in particular relates to an oil injection device for a wind turbine gearbox. Background Technology

[0002] In wind turbine generator sets, the gearbox is a crucial and widely used mechanical component. Its main function is to transmit the power generated by the wind turbine under wind force to the generator, enabling it to achieve the corresponding rotational speed. To maintain the wind turbine gearbox, it is usually necessary to use an oiling device to lubricate it, which helps reduce wear on gears and other moving parts, and extends gear life.

[0003] A search revealed a Chinese patent document disclosing a wind turbine gearbox oil injection device [Application No.: CN202321786230.6; Publication No.: CN220540839U]. This wind turbine gearbox oil injection device includes a transmission assembly, with an oil outlet assembly and an oil injection assembly detachably connected to both ends of the transmission assembly. The transmission assembly includes an oil pump, with a first connecting pipe and a second connecting pipe fixedly connected to both ends of the oil pump. A sealing sleeve is fixedly connected to one end of the first connecting pipe.

[0004] Although the wind turbine gearbox oiling device disclosed in this patent can perform dual filtration of lubricating oil through the transmission component, oil outlet component and oil injection component, thereby improving the quality of lubricating oil, this wind turbine gearbox oiling device requires an oil pump for oiling operation. It cannot adjust and precisely control the amount of oil injected into the gearbox. In addition, the overall structure is large, making it impossible to perform routine oiling of the wind turbine gearbox. The oiling efficiency is limited, and the convenience and practicality are poor. Summary of the Invention

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a wind turbine gearbox oil injection device, which can effectively solve the problems of the existing technology.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model is a wind turbine gearbox oil injection device, including an oil cylinder, a lower receiving bucket connected to the bottom of the oil cylinder, a filter assembly inside the lower receiving bucket, and a connecting pipe fixedly connected to the bottom of the lower receiving bucket. An oil injection pipe is fixedly connected to the end of the connecting pipe away from the lower receiving bucket, and an oil volume adjustment assembly is provided on one side of the oil injection pipe, which is located inside the connecting pipe.

[0008] The oil volume regulating component includes a fixed plate, which is fixedly connected to the inner wall of the connecting pipe, and an oil injection pipe is provided on the outer side of the fixed plate. The fixed plate has multiple through holes equidistantly arranged in annular pattern inside, and a connecting rod is fixedly connected inside the fixed plate. A rotating plate is rotatably connected to the outer wall of the connecting rod. The rotating plate is fitted to one side of the fixed plate, and the outer wall of the rotating plate is slidably connected to the inner wall of the connecting pipe. A magnetic block is slidably connected to the outer wall of the connecting pipe, and the magnetic block is magnetically connected to the rotating plate.

[0009] Furthermore, the connecting pipe is arranged in an "L" shape;

[0010] An overflow pipe is fixedly connected to the top of the connecting pipe, and a connecting valve is installed on the overflow pipe to control its opening and closing.

[0011] Furthermore, a magnetic plate is fixedly connected to the outer wall of the rotating plate, and an inner slide is slidably connected to the outer wall of the magnetic plate, the inner slide being opened on the inner wall of the connecting pipe.

[0012] Furthermore, the outer wall of the connecting pipe is provided with a sliding groove that can accommodate the sliding connection of the magnetic block. The sliding groove is arranged in a ring structure, and the magnetic block and the magnetic plate are magnetically connected.

[0013] Furthermore, the filter assembly includes a boss, which is fixedly connected to the inner wall of the lower receiving hopper. Multiple filter units are continuously overlapped and installed above the boss. Each filter unit includes a retaining ring, which is overlapped and connected to the top of the boss, and a filter screen is fixedly connected inside the retaining ring.

[0014] Furthermore, the plurality of filter screens are respectively a coarse filter screen, a medium filter screen, and a fine filter screen.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, by setting up the oil quantity adjustment component, the lubricating oil inside the connecting pipe is injected into the wind turbine gearbox through the oil injection pipe in a controlled manner, avoiding the problem of excessive lubricating oil entering the gearbox and causing spraying or overflow. Moreover, by setting up the oil cylinder and the lower receiving hopper, the lubricating oil inside the oil cylinder can be directly injected into the oil injection pipe through the lower receiving hopper and the connecting pipe, eliminating the need for an oil pump and preventing damage to the internal components of the gearbox caused by the lubricating oil spray pressure. Furthermore, by setting up the lower receiving hopper by gravity, the lubricating oil inside the oil cylinder automatically enters the connecting pipe and is automatically injected and lubricated through the oil quantity adjustment component, improving the convenience and practicality of wind turbine gearbox oiling. Compared with existing wind turbine gearbox oiling equipment, it has a compact structure, is easy to operate, and has low operating costs.

[0017] In this invention, the lubricating oil inside the oil drum is filtered by the filter unit before entering the lower receiving hopper, thanks to the filtering components. Multiple filter units are installed inside the lower receiving hopper via bosses, and the arrangement of multiple filter screens allows users to adjust the installation sequence and number of filter units according to the oiling requirements of the wind turbine gearbox. This facilitates filtering of lubricating oil at different mesh sizes and allows for oiling of different types of wind turbine gearboxes, ensuring the applicability and flexibility of the oiling equipment. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a wind turbine gearbox oil injection device according to the present invention;

[0020] Figure 2 This is a cross-sectional exploded view of the filter assembly in this utility model;

[0021] Figure 3 This is a front view schematic diagram of the oil quantity regulating component in this utility model;

[0022] Figure 4 This is a side view of the oil quantity regulating component in this utility model.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Oil drum; 2. Lower receiving hopper; 3. Connecting pipe; 4. Overflow pipe; 5. Oil injection pipe; 6. Boss; 7. Snap ring; 8. Filter screen; 9. Fixing plate; 10. Through hole; 11. Connecting rod; 12. Rotating plate; 13. Magnetic plate; 14. Inner slide; 15. Magnetic block; 16. Slide groove. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0026] Please see Figure 1-4As shown, this utility model is a wind turbine gearbox oil filling device, including an oil cylinder 1, a lower receiving hopper 2, a connecting pipe 3, an overflow pipe 4, an oil filling pipe 5, a boss 6, a retaining ring 7, a filter screen 8, a fixing plate 9, a through hole 10, a connecting rod 11, a rotating plate 12, a magnetic plate 13, an inner slide rail 14, a magnetic block 15, and a sliding groove 16. The lower receiving hopper 2 is snapped and connected below the oil cylinder 1. The lower receiving hopper 2 is bucket-shaped, which facilitates the centralized collection of lubricating oil at the bottom. In order to filter the oil coming out of the bottom of the oil cylinder 1, a filter assembly is provided inside the lower receiving hopper 2. Meanwhile, a connecting pipe 3 is fixedly connected to the bottom of the lower receiving bucket 2. The connecting pipe 3 is set in an "L" shape, and an oil injection pipe 5 is fixedly connected to the end of the connecting pipe 3 away from the lower receiving bucket 2. In order to ensure the flexibility and controllability of the lubricating oil inside the connecting pipe 3, an overflow pipe 4 is fixedly connected above the connecting pipe 3, and a connecting valve is installed on the overflow pipe 4 to control its opening and closing. Through the setting of the overflow pipe 4, the lubricating oil inside the connecting pipe 3 is discharged through the connecting valve, ensuring the effective discharge of the lubricating oil inside the connecting pipe 3.

[0027] Specifically, to control the oil volume of the oil injection pipe 5 on one side of the connecting pipe 3, an oil volume adjustment component is installed on one side of the oil injection pipe 5. The oil volume adjustment component is located inside the connecting pipe 3. The oil volume adjustment component includes a fixing plate 9, which is fixedly connected to the inner wall of the connecting pipe 3. The oil injection pipe 5 is installed on the outer side of the fixing plate 9. Multiple through holes 10 are equidistantly arranged in a ring inside the fixing plate 9. Through the through holes 10, the lubricating oil inside the connecting pipe 3 enters the oil injection pipe 5. To adjust the flow rate of the through holes 10, a connecting rod 11 is fixedly connected inside the fixing plate 9. A rotating plate 12 is rotatably connected to the outer wall of the connecting rod 11. The rotating plate 12 is fitted to one side of the fixing plate 9, which facilitates the adjustment of the through holes 10 by the rotating plate 12 on the outer wall of the fixing plate 9. To achieve the rotation effect of the rotating plate 12, the outer wall of the rotating plate 12 is slidably connected to the inner wall of the connecting pipe 3. Specifically, the outer wall of the rotating plate 12 is fixedly connected to... A magnetic plate 13 is provided, and an inner slide rail 14 is slidably connected to the outer wall of the magnetic plate 13. The inner slide rail 14 is opened on the inner wall of the connecting pipe 3 to ensure the rotational stability of the rotating plate 12. At the same time, in order to facilitate the user to operate the rotating plate 12 from the outside, a magnetic block 15 is slidably connected to the outer wall of the connecting pipe 3, and the magnetic block 15 is magnetically connected to the rotating plate 12. A groove 16 is opened on the outer wall of the connecting pipe 3 to accommodate the sliding connection of the magnetic block 15. The groove 16 is arranged in a ring structure, and the magnetic block 15 is magnetically connected to the magnetic plate 13. With this arrangement, when the user rotates the magnetic block 15 on the outer wall of the connecting pipe 3, under the magnetic action of the magnetic block 15 and the magnetic plate 13 at a designated position, the magnetic block 15 can drive the magnetic plate 13 to slide on the inner wall of the connecting pipe 3. This allows the rotating plate 12 to adjust the flow size of the through hole 10 inside the connecting pipe 3, realizing the adjustment and control of the oil injection volume inside the connecting pipe 3, and ensuring the accuracy and scientific nature of oil injection.

[0028] Furthermore, to achieve filtration of the lubricating oil inside the connecting pipe 3, a filter assembly is installed inside the lower receiving hopper 2. This filter assembly includes a boss 6, which is fixedly connected to the inner wall of the lower receiving hopper 2. To achieve filtration of the lubricating oil inside the lower receiving hopper 2, multiple filter units are continuously stacked and installed above the boss 6. Specifically, each filter unit includes a retaining ring 7, which is connected to the top of the boss 6. The boss 6 facilitates the installation of the filter units inside the lower receiving hopper 2 via the retaining ring 7. By continuously stacking multiple retaining rings 7, multiple filter units can perform multiple efficient filtrations inside the lower receiving hopper 2. To ensure filtration effectiveness, filter screens 8 are fixedly connected inside the retaining rings 7. The multiple filter screens 8 stacked vertically are coarse, medium, and fine filter screens, respectively. This configuration allows users to adjust the filter units according to the oil filling requirements of the wind turbine gearbox, facilitating filtration of lubricating oil at different mesh sizes. This improves the applicability and flexibility of the oil filling equipment, and is simple, convenient, and highly practical.

[0029] Working Principle: In use, one end of the oil injection pipe 5 is installed on one side of the oil injection port of the wind turbine gearbox. A filter assembly is installed inside the lower receiving hopper 2. Under the action of the boss 6, multiple filter units are installed inside the lower receiving hopper 2, facilitating the filtration of the lubricating oil inside the lower receiving hopper 2 by multiple filter screens 8. With the lower receiving hopper 2 installed at the bottom of the oil cylinder 1, the lubricating oil inside the oil cylinder 1 is efficiently filtered through multiple filter units and enters the connecting pipe 3 through the lower receiving hopper 2. With the oil injection pipe 5 connected to one side of the connecting pipe 3, the lubricating oil inside the connecting pipe 3 flows into the wind turbine gearbox for automatic oil injection. To regulate the flow rate of the lubricating oil inside the connecting pipe 3, a fixing plate 9 is fixedly connected inside the connecting pipe 3. A rotating plate 12 is rotatably connected to the outer wall of the fixing plate 9. This allows the user to operate the magnetic block 15 externally. Through the magnetic connection between the magnetic block 15 and the magnetic plate 13, the magnetic plate 13 drives the rotating plate 12 to rotate inside the connecting pipe 3. This allows the rotating plate 12 to adjust the flow size of the through hole 10 inside the connecting pipe 3, thereby controlling the flow rate of lubricating oil into the oil injection pipe 5. This facilitates the adjustment and control of the oil injection amount in the wind turbine gearbox, ensuring the accuracy and scientific nature of the oil injection. Furthermore, by setting an overflow pipe 4 above the connecting pipe 3, under the action of the connecting valve, the overflow pipe 4 can collect excess lubricating oil inside the connecting pipe 3 through opening and closing, achieving reasonable distribution and utilization of lubricating oil, effectively reducing oil injection costs. Moreover, the structure is simple and highly practical. This completes the working principle of the wind turbine gearbox oil injection equipment.

[0030] The above are merely preferred embodiments of the present utility model and do not limit the present utility model. Any modifications, equivalent substitutions, or improvements made to the technical solutions described in the foregoing embodiments, or to some of the technical features, shall fall within the protection scope of the present utility model.

Claims

1. A wind turbine gearbox oil injection device, comprising an oil cylinder (1), characterized in that: The lower part of the oil cylinder (1) is connected to the lower receiving bucket (2). The lower receiving bucket (2) is equipped with a filter assembly. The bottom end of the lower receiving bucket (2) is fixedly connected to a connecting pipe (3). The end of the connecting pipe (3) away from the lower receiving bucket (2) is fixedly connected to an oil injection pipe (5). An oil volume adjustment assembly is provided on one side of the oil injection pipe (5). The oil volume adjustment assembly is located inside the connecting pipe (3). The oil volume regulating component includes a fixed plate (9), which is fixedly connected to the inner wall of the connecting pipe (3), and an oil injection pipe (5) is provided on the outer side of the fixed plate (9). Multiple through holes (10) are equidistantly arranged in an annular pattern inside the fixed plate (9), and a connecting rod (11) is fixedly connected inside the fixed plate (9). A rotating plate (12) is rotatably connected to the outer wall of the connecting rod (11). The rotating plate (12) is attached to one side of the fixed plate (9), and the outer wall of the rotating plate (12) is slidably connected to the inner wall of the connecting pipe (3). A magnetic block (15) is slidably connected to the outer wall of the connecting pipe (3), and the magnetic block (15) is magnetically connected to the rotating plate (12).

2. The wind turbine gearbox oil injection device according to claim 1, characterized in that, The connecting pipe (3) is arranged in an "L" shape; An overflow pipe (4) is fixedly connected above the connecting pipe (3), and a connecting valve is installed on the overflow pipe (4) to control its opening and closing.

3. The wind turbine gearbox oil injection device according to claim 1, characterized in that, The outer wall of the rotating plate (12) is fixedly connected to a magnetic plate (13), and the outer wall of the magnetic plate (13) is slidably connected to an inner slide (14), which is opened on the inner wall of the connecting pipe (3).

4. The wind turbine gearbox oil injection device according to claim 3, characterized in that, The outer wall of the connecting pipe (3) is provided with a sliding groove (16) that can accommodate the magnetic block (15) for sliding connection. The sliding groove (16) is arranged in a ring structure, and the magnetic block (15) and the magnetic plate (13) are magnetically connected.

5. The wind turbine gearbox oil injection device according to claim 1, characterized in that, The filter assembly includes a boss (6), which is fixedly connected to the inner wall of the lower receiving hopper (2). Multiple filter units are continuously overlapped and installed above the boss (6). Each filter unit includes a retaining ring (7), which is overlapped and connected to the top of the boss (6). A filter screen (8) is fixedly connected inside the retaining ring (7).

6. The wind turbine gearbox oil injection device according to claim 5, characterized in that, The plurality of filters (8) are respectively a coarse filter (8), a medium filter (8) and a fine filter (8).

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