Wind power gear oil changing tool

By designing a wind turbine gear oil changing fixture, using magnetic rings and filters to remove impurities, and combining a pipeline positioning mechanism to fix the oil extraction pipe, the problems of impurities affecting regeneration and unstable oil extraction during wind turbine gear oil changing were solved, achieving efficient and safe waste oil treatment.

CN224079568UActive Publication Date: 2026-04-03LONGYUAN NINGXIA WIND POWER GENERATION CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-27
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

In existing technologies, the replacement of gear oil in wind turbines involves the presence of tiny metal shavings and impurities that affect the recycling value of waste oil, while the swaying of the oil extraction pipe leads to low efficiency and increased risk.

Method used

A wind turbine gear oil changing fixture was designed, comprising a visible transparent waste oil tank, a filter assembly, and a pipeline positioning mechanism. The filter assembly removes impurities through a magnetic ring and a filter screen, while the pipeline positioning mechanism secures the oil extraction pipe through a support and a rotating rod to ensure oil extraction stability.

Benefits of technology

It improves the purity of waste oil, reduces operational risks, enhances oil extraction efficiency and stability, reduces equipment damage, and lowers maintenance costs.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224079568U_ABST
    Figure CN224079568U_ABST
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Abstract

The utility model discloses a wind power gear oil changing tool, and relates to the technical field of wind power gear oil changing, the wind power gear oil changing tool comprises a waste oil tank, the bottom of the waste oil tank is provided with a base, one side of the base is provided with a storage hole, and a pipeline positioning mechanism is installed in the storage hole in a sliding mode. The liquid inlet end of the waste oil tank is connected with a gear pump through a pipeline, a liquid inlet of the gear pump is connected with an oil pumping pipe, and a filtering assembly is installed at the end of the oil pumping pipe. According to the utility model, the filter is arranged at the oil pumping end of the suction pipe to filter waste oil, and tiny metal chips and other ferromagnetic substances mixed in the waste oil can be effectively adsorbed through the magnetic suction ring before filtering, so that not only is the purity of the waste oil improved, but also a better basic condition is provided for subsequent waste oil regeneration treatment.
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Description

Technical Field

[0001] This utility model relates to the field of wind turbine gear oil change technology, and in particular to a wind turbine gear oil change tool. Background Technology

[0002] The gearbox in a wind turbine generator set is an important mechanical component. Its main function is to transmit the power generated by the wind turbine under the action of wind to the generator and enable it to achieve the corresponding speed. Usually, the speed of the wind turbine is very low, far from the speed required by the generator to generate electricity. It must be achieved through the speed-increasing action of the gear pair in the gearbox. Therefore, the gearbox is also called a speed-increasing gearbox. In order to maintain the gearbox, the oil needs to be changed regularly.

[0003] However, in the existing technology, there are many problems in the process of changing wind turbine gear oil. These problems not only affect work efficiency, but also increase operational risks and maintenance costs. Among them, the waste oil contains a large number of tiny metal shavings and other impurities. Recycling these impurities into the waste oil tank reduces the recycling value of the waste oil. Secondly, during the oil pumping process, the oil pumping pipe is prone to shaking, resulting in low oil pumping efficiency and even damage to the oil pumping pipe. Utility Model Content

[0004] This utility model provides a wind turbine gear oil changing fixture, including a waste oil tank. The bottom of the waste oil tank is provided with a base, and a storage hole is opened on one side of the base. A pipe positioning mechanism is slidably installed in the storage hole. The liquid inlet of the waste oil tank is connected to a gear pump through a pipe. The liquid inlet of the gear pump is connected to an oil suction pipe, and a filter assembly is installed at the end of the oil suction pipe.

[0005] Preferably, the filtration assembly includes an end connected to the inlet end of the oil extraction pipe, and a filter screen is installed inside the end.

[0006] Preferably, a magnetic ring is installed on the outer part of the end, and a shell is threaded to the outer side of the end.

[0007] Preferably, the pipe positioning mechanism includes a support that slides within the receiving hole, an adjustment frame is provided at the upper end of the support, and a top fixing plate is rotatably provided at the upper end of the adjustment frame.

[0008] Preferably, a rotating rod is fixedly installed on the lower side of the top fixing plate. The rotating rod is rotatably installed inside the adjusting frame, and through insertion hole one and insertion hole two are respectively opened on both sides of the rotating rod.

[0009] Preferably, a positioning hole is provided on one side of the adjustment frame, and a positioning pin is inserted into the positioning hole. The positioning pin is engaged with the first insertion hole and the second insertion hole.

[0010] Preferably, annular grooves are provided on both sides of the top fixing plate, and elastic elements are provided on the inner walls of both sides of the annular grooves, with an arc sleeve connected to one end of the elastic element.

[0011] Preferably, an adjusting rail is fixedly installed on one side wall of the annular groove, a sliding plate is slidably installed inside the adjusting rail, and an upper plate is fixedly connected to the lower end of the sliding plate.

[0012] Preferably, a lead screw is rotatably installed inside the adjusting rail, and the lead screw is threadedly connected to the slide plate.

[0013] Preferably, the waste oil tank is made of a transparent material.

[0014] This utility model provides a wind turbine gear oil changing fixture, which, compared with the prior art, offers the following advantages:

[0015] 1. This utility model filters waste oil by installing a filter at the oil suction end of the suction pipe. Before filtration, the magnetic ring can effectively adsorb tiny metal shavings and other ferromagnetic substances mixed in the waste oil. This not only helps to improve the purity of the waste oil, but also provides a better foundation for subsequent waste oil regeneration treatment.

[0016] 2. This utility model removes the support from the storage hole and rotates the rotating rod to make the top fixing plate rotate to a state perpendicular to the waste oil tank. By placing the oil suction pipe in the annular groove and fixing the oil suction pipe with springs and arc sleeves, the stability of the oil suction pipe during oil extraction can be improved, and the oil suction pipe will not be dented. Combined with the fixing of the upper plate, the stability of the oil suction pipe is strengthened, and the oil suction pipe is prevented from shaking during oil extraction. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model;

[0019] Figure 2 This is a second schematic diagram of the overall structure of an embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram showing the structural breakdown of the filter component according to an embodiment of the present invention;

[0021] Figure 4 This is a cross-sectional view of the filter assembly structure according to an embodiment of the present utility model;

[0022] Figure 5 This is a schematic diagram showing the disassembled structure of the positioning mechanism according to an embodiment of the present utility model;

[0023] Figure 6 This is an embodiment of the present utility model. Figure 5 A schematic diagram of the structure at point A;

[0024] Figure 7 This is a schematic diagram of the top fixing plate and other structures in an embodiment of the present utility model;

[0025] Figure 8 This is a side view of the top fixing plate structure according to an embodiment of the present utility model.

[0026] Figure label:

[0027] 1. Waste oil tank; 2. Base; 3. Gear pump; 4. Storage hole; 5. Oil suction pipe; 6. End; 7. Filter screen; 8. Magnetic ring; 9. Outer shell; 10. Support; 11. Adjusting frame; 12. Positioning hole; 13. Positioning pin; 14. Rotating rod; 15. Insertion hole one; 16. Insertion hole two; 17. Top fixing plate; 18. Annular groove; 19. Elastic element; 20. Arc sleeve; 21. Adjusting rail; 22. Slide plate; 23. Upper plate; 24. Lead screw. Detailed Implementation

[0028] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0029] Please refer to Figures 1-8 This utility model embodiment provides a wind turbine gear oil changing tool, including a waste oil tank 1. The waste oil tank 1 is made of a transparent material, so there is no need to frequently open the waste oil tank 1 to check the liquid level, reducing unnecessary operation steps and downtime, and improving overall work efficiency. The bottom of the waste oil tank 1 is provided with a base 2, and a storage hole 4 is opened on one side of the base 2. A pipe positioning mechanism is slidably installed in the storage hole 4. The positioning mechanism positions the pipe that enters the wind turbine gearbox to suck up waste oil, preventing the pipe from shaking during suction.

[0030] The inlet of the waste oil tank 1 is connected to the gear pump 3 via a pipe. The inlet of the gear pump 3 is connected to the oil suction pipe 5. A filter assembly is installed at the end of the oil suction pipe 5. The filter assembly includes an end 6 connected to the inlet of the oil suction pipe 5. A filter screen 7 is installed inside the end 6. The filter screen 7 can effectively remove particulate impurities in the waste oil, such as dust and wear products. This not only helps to improve the purity of the waste oil, but also provides better basic conditions for subsequent waste oil regeneration.

[0031] Furthermore, a magnetic ring 8 is installed near the outer side of the end 6. The magnetic ring 8 can effectively adsorb tiny metal shavings and other ferromagnetic substances mixed in the waste oil. These metal shavings may originate from friction and wear between components inside the gearbox. Their presence can seriously affect the quality of the waste oil and may cause damage to subsequent treatment equipment. The outer side of the end 6 is threadedly connected to a housing 9, which protects the filter screen 7 and the magnetic ring 8.

[0032] In addition, the pipe positioning mechanism includes a support 10 that slides within the storage hole 4. The support 10 is easy to store and carry by sliding within the storage hole 4. An adjustment frame 11 is provided at the upper end of the support 10. A top fixing plate 17 is rotatably provided at the upper end of the adjustment frame 11. A rotating rod 14 is fixedly provided on the lower side of the top fixing plate 17. The rotating rod 14 is rotatably provided inside the adjustment frame 11. By rotating the rotating rod 14, the direction of the top fixing plate 17 can be adjusted, which facilitates the switching between the state of the positioning mechanism when in use and when not in use.

[0033] Both sides of the top fixing plate 17 are provided with annular grooves 18, and elastic elements 19 are provided on the inner walls of both sides of the annular grooves 18. One end of the elastic element 19 is connected to an arc sleeve 20. The elastic element 19 can be a damper, spring or other device that conforms to the art. Through the drive of the elastic element 19, the arc sleeve 20 can be tightly fitted with the oil suction pipe 5, and the oil suction pipe 5 can be fixed without damaging it.

[0034] Furthermore, an adjusting rail 21 is fixedly installed on one side wall of the annular groove 18, and a sliding plate 22 is slidably installed inside the adjusting rail 21. An upper plate 23 is fixedly connected to the lower end of the sliding plate 22. A lead screw 24 is rotatably installed inside the adjusting rail 21 and is threadedly connected to the sliding plate 22. After the oil pipe 5 is initially fixed, the lead screw 24 can be rotated to cause the sliding plate 22 to descend with the upper plate 23 to fix the upper end of the oil pipe 5, thereby enhancing the stability of the oil pipe 5.

[0035] In addition, through-holes 15 and 16 are respectively provided on both sides of the rotating rod 14. A positioning hole 12 is provided on one side of the adjusting frame 11. A positioning pin 13 is inserted into the positioning hole 12. The positioning pin 13 is engaged with the through-holes 15 and 16. When the rotating rod 14 rotates to the working state with the top fixing plate 17, the positioning pin 13 can be inserted into the through-hole 15 to improve the stability of the rotating rod 14. When the rotating rod 14 is reset and stored with the top fixing plate 17, the positioning pin 13 can be inserted into the through-hole 16 to improve the stability of the rotating rod 14.

[0036] In summary, the working principle of the wind turbine gear oil changing fixture of this utility model embodiment is as follows: The waste oil tank 1 is placed in a suitable position, and the position of the support 10 is adjusted as needed. The top fixing plate 17 is rotated by the rotating rod 14, so that the annular groove 18 faces a suitable direction to facilitate fixing the oil extraction pipe 5. The oil extraction pipe 5 is placed into the annular groove 18, and the elastic element 19 drives the arc sleeve 20 to tightly fit the oil extraction pipe 5, achieving initial fixation. The screw 24 is rotated, causing the sliding plate 22 to descend with the upper plate 23 to perform secondary fixation on the upper end of the oil extraction pipe 5, further enhancing the stability of the oil extraction pipe 5. The gear pump 3 is started, and waste oil is extracted from the wind turbine gearbox through the oil extraction pipe 5. The waste oil first passes through the magnetic ring 8 inside the end 6, adsorbing tiny metal shavings and other ferromagnetic substances. Then, it passes through the filter screen 7 to remove particulate impurities. The purified waste oil enters the waste oil tank 1 through the pipeline.

[0037] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A wind turbine gear oil changing tooling comprising a waste oil tank (1), characterized in that: The bottom of the waste oil tank (1) is provided with a base (2), one side of the base (2) is provided with a receiving hole (4), a pipeline positioning mechanism is slidably installed in the receiving hole (4), the liquid inlet end of the waste oil tank (1) is connected with the gear pump (3) through a pipeline, the liquid inlet of the gear pump (3) is connected with an oil pumping pipe (5), and the end of the oil pumping pipe (5) is provided with a filtering assembly; The filtering assembly comprises a head (6) connected to the liquid inlet end of the oil pumping pipe (5), and a filter screen (7) is installed in the head (6); A magnetic ring (8) is installed on the outer side of the head (6), and an outer shell (9) is threadedly connected to the outer side of the head (6); The pipeline positioning mechanism comprises a support (10) slidably installed in the receiving hole (4), and an adjusting frame (11) is arranged at the upper end of the support (10); A rotating rod (14) is fixedly arranged on the lower side of the top fixing plate (17), the rotating rod (14) is rotatably arranged on the inner side of the adjusting frame (11), and through holes (15) and (16) are formed in the two sides of the rotating rod (14); A positioning hole (12) is formed in one side of the adjusting frame (11), a positioning pin (13) is inserted into the positioning hole (12), and the positioning pin (13) is inserted into the through holes (15) and (16); The two sides of the top fixing plate (17) are provided with annular grooves (18), and the inner walls of the annular grooves (18) are provided with elastic members (19), one end of the elastic member (19) is connected with an arc sleeve (20).

2. The wind turbine gear oil drain tool of claim 1, wherein: An adjusting rail (21) is fixedly arranged on one side wall of the annular groove (18), a sliding plate (22) is slidably arranged in the adjusting rail (21), and the lower end of the sliding plate (22) is fixedly connected with an upper plate (23).

3. The wind turbine gear oil drain tool of claim 2, wherein: A screw rod (24) is rotatably arranged in the adjusting rail (21), and the screw rod (24) is threadedly connected with the sliding plate (22).

4. The wind turbine gear oil drain tool of claim 1, wherein: The waste oil tank (1) is made of visual transparent material.