Anti-foaming device for lubricating oil of fan gearbox

Abstract

The invention discloses a fan gear box lubricating oil anti-foaming device, and particularly relates to the technical field of lubricating oil anti-foaming, the fan gear box lubricating oil anti-foaming device comprises an anti-foaming pipe, a frame plate, a filter cotton disc, a controller and a collecting anti-foaming treatment assembly; wherein the collection anti-foam treatment assembly comprises a lifting arc plate, a plurality of filtering holes, a plurality of filtering rectangular holes, a linkage strip, a linkage block, a supporting ring and an electric cylinder. By the adoption of the collecting and anti-foaming treatment assembly, lubricating oil is discharged downwards through filtering rectangular holes of a lifting arc plate, meanwhile, bubbles on the side face of a filtering cotton disc are moved upwards and collected to the outer wall of an arc-shaped strip, the whole process is efficient and orderly, the bubbles are rapidly collected to achieve collection treatment, and the lubricating oil anti-foaming effect is better; therefore, the problems that a large number of bubbles are generated by external air due to transmission of all parts of the gear box, the bubbles are difficult to collect to achieve gathering and puncturing treatment, and the anti-foaming effect of lubricating oil is poor are solved.

Description

Technical Field

[0001] This invention relates to the field of anti-foaming technology for lubricating oil, and more specifically, to an anti-foaming device for lubricating oil in a fan gearbox. Background Technology

[0002] Foam contains a large amount of air. When lubricating oil foams, it comes into full contact with air, accelerating the oxidation process of the lubricating oil. Oxidized lubricating oil will have reduced performance and produce acidic substances and precipitates, causing corrosion and wear to gears and gearboxes. Anti-foaming devices can reduce the contact between lubricating oil and air, slow down the oxidation rate, and extend the service life of lubricating oil. In some long-running wind turbine gearboxes, if the lubricating oil foams and oxidizes frequently, it may need to be replaced every few months. However, after using an anti-foaming device, the service life of the lubricating oil can be extended to a year or even longer.

[0003] In existing publicly available literature, patent publication number CN216242207U discloses a blower gearbox lubricating oil anti-foaming device. This technology involves extending the anti-foaming plate assembly downwards at one end towards the inner wall of the gearbox opposite the oil outlet. This technology allows the lubricating oil ejected by the high-speed rotating gears to come into contact with the anti-foaming plate assembly, achieving an ideal effect in reducing mid-to-high frequency noise. During this process, the lubricating oil experiences no impact, fundamentally solving the problem of bubble formation and thus preventing and eliminating foaming of the lubricating oil during operation. However, this technology still has the following drawbacks.

[0004] In the process of preventing foaming of lubricating oil in wind turbine gearboxes, although the amount of foaming can be reduced, a large number of air bubbles will be generated inside the gearbox due to the transmission of various parts of the gearbox. It is difficult to collect these bubbles and puncture them, resulting in poor anti-foaming effect of the lubricating oil. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides the following technical solution: a fan gearbox lubricating oil anti-foaming device, including an anti-foaming tube, a frame plate, a filter cotton disc and a controller, wherein the frame plate is fixedly connected to the top of the outer wall of the anti-foaming tube, the filter cotton disc is fixedly connected to the inner wall of the anti-foaming tube, and a foam collection and anti-foaming treatment component is provided on one side of the inner wall of the filter cotton disc. The anti-foaming treatment assembly includes a lifting arc plate slidably disposed on one side of the inner wall of the filter cotton tray. The inner wall of the filter hole has multiple filter holes, and the inner wall of the lifting arc plate has multiple rectangular filter holes. A linkage bar is fixedly connected to the upper surface of the lifting arc plate, and a linkage block is fixedly connected to the top of the linkage bar. The linkage bar is slidably connected to the frame plate. A support ring is fixedly connected to the lower surface of the linkage block. An electric cylinder is installed inside the support ring, and the outer wall of the electric cylinder is fixedly connected to the anti-foaming tube.

[0006] Preferably, the outer wall of the linkage strip and the inner wall of the frame plate are both smooth surfaces, and the linkage strip and the linkage block form an L-shaped vertical cross-section. A positioning sleeve is fixedly connected to the top of the inner wall of the anti-foaming tube and the top of the frame plate, and a sealing sleeve is fixedly connected to the inner wall of the positioning sleeve. The inner wall of the sealing sleeve is slidably connected to the linkage strip.

[0007] When this technology is in use, filtration is achieved through multiple filter holes on the filter cotton disc. The electric cylinder pushes the linkage block to move upward, and the linkage bar moves upward along the inner wall of the sealing sleeve and frame plate to achieve sealing treatment. When the linkage bar is moved upward, the lifting arc plate moves upward along the filter cotton disc. The lubricating oil flows out downward through the holes of the lifting arc plate. At the same time, a large number of air bubbles on the side of the filter cotton disc are moved upward and collected on the inner wall of the lifting arc plate.

[0008] Preferably, an arc-shaped strip is rotatably connected to one side of the inner wall of the frame plate near its top; an arc-shaped linkage piercing assembly is provided on one side of the arc-shaped strip; the arc-shaped linkage piercing assembly includes a linkage support, a rotating strip, a rotating ring, a rotating shaft, and a drive motor. The linkage support is fixed to the inner wall of the arc-shaped strip, the rotating strip is fixed to one side of the outer wall of the linkage support and is fixedly connected to the arc-shaped strip, the rotating ring is fixed to the top of the linkage support, the rotating shaft is fixed to the inner wall of the rotating ring, and the drive motor is installed at one end of the rotating shaft and is fixedly connected to the frame plate; multiple racks are fixedly connected to the outer wall of the arc-shaped strip, multiple toothed holes are opened on one side of the racks, and inclined toothed plates are fixedly connected to both sides of the racks, and multiple inclined grooves are opened on the inner wall of the inclined toothed plates. The drive motor is electrically connected to the controller and is used to drive the rotating shaft to rotate. The multiple toothed holes are arranged equidistantly from front to back, and the multiple inclined grooves are arranged equidistantly from front to back.

[0009] When this technology is in use, the drive motor drives the rotating shaft to rotate 10 degrees forward and backward, the rotating ring drives the linkage support bar to rotate 10 degrees forward and backward, and both the linkage support bar and the rotating bar drive the arc bar to rotate 10 degrees forward and backward. At the same time, the rack drives the two helical teeth to rotate 10 degrees forward and backward. Both the rack and the helical teeth puncture the air bubbles inside the lifting arc plate by rotating 10 degrees forward and backward.

[0010] Preferably, a negative pressure fan is fixedly connected to the top of the frame plate near its central position. The output end of the negative pressure fan is equipped with a constant force conveying assembly. The constant force conveying assembly includes an electric valve, a discharge pipe, a pressure sensor, and a collar. The electric valve is fixedly connected to the output end of the negative pressure fan, and the discharge pipe is threadedly connected to one end of the electric valve. The pressure sensor is located on one side of the electric valve and fixedly connected to the frame plate, and a collar is fixedly installed on the outer wall of the pressure sensor. One end of the anti-foaming pipe is fixedly connected to a connecting pipe, and one end of the connecting pipe is fixedly connected to a connecting pipe. The other end of the anti-foaming pipe is fixedly connected to a conveying pipe. The conveying pipe drives a flow meter threadedly connected to one end, and a controller is fixedly installed on one side of the flow meter. A conveying pump is fixedly installed on one end of the flow meter, and a docking valve is threadedly connected to the input end of the conveying pump. The connecting pipe and the connecting pipe are both connected to the docking pipe, and the inner walls of the connecting pipe, the docking pipe, and the connecting pipe are all smooth surfaces. The delivery pump is used to boost the input of lubricating oil, and both the docking valve and the flow meter are electrically connected to the controller. The inner diameter of the anti-foaming pipe is larger than the inner diameter of the connecting pipe.

[0011] In use, the controller opens the docking valve and the delivery pump, allowing air to flow into the delivery pump through the docking valve. Simultaneously, the flow meter delivers the air to the delivery pipe at a specified flow rate, through the anti-foaming pipe into the connecting pipe, and then through the docking pipe into the connecting pipe. Finally, the air is delivered to the fan gearbox through the connecting pipe. When the pressurized air returns to the pressure value set by the controller, the controller starts the negative pressure fan and opens the electric valve, allowing a large amount of air generated by the bursting of bubbles inside the frame plate to be delivered to the electric valve along with the negative pressure fan.

[0012] The technical effects and advantages of this invention are as follows: 1. This invention employs a foam-collecting and anti-foaming treatment component. It utilizes multiple filter holes on a filter cotton disc for efficient filtration, causing bubbles to adhere to its surface for initial separation. A controller precisely activates an electric cylinder, pushing the linkage block and linkage bar upwards. The linkage bar moves upwards to seal against the inner wall of the sealing sleeve and frame plate. The frame plate, positioning sleeve, and sealing sleeve work together to ensure a stable seal. The linkage bar drives the lifting arc plate upwards, allowing lubricating oil to drain through the rectangular filter holes of the lifting arc plate. Simultaneously, it collects bubbles from the side of the filter cotton disc onto the outer wall of the arc bar. The entire process is efficient and orderly, rapidly collecting and treating these bubbles, resulting in better anti-foaming effects on the lubricating oil.

[0013] 2. This invention employs an arc-shaped linkage puncture component. The controller precisely starts the drive motor, driving the rotating shaft to rotate 10 degrees forward and backward. The arc-shaped strip and multiple racks rotate 10 degrees forward and backward simultaneously, causing the helical gear to rotate accordingly. This causes the tooth holes and helical grooves to work together. This forward and backward rotation puncture method can efficiently and comprehensively puncture the air bubbles inside the lifting arc plate, ensuring that the air bubbles in the lubricating oil are effectively removed. The treated air bubble-free lubricating oil can smoothly enter the connecting pipe and the connecting pipe, and then flow back to the fan gearbox through the connecting pipe, ensuring the stable operation of the gearbox and improving the anti-foaming effect of the lubricating oil.

[0014] 3. This invention employs a constant-force conveying component. The controller precisely operates the docking valve and the conveying pump to achieve the circulation and conveying of lubricating oil between the fan gearbox and various pipelines. The flow meter can control the flow rate according to a specified flow rate, and the pressure sensor monitors the air pressure inside the frame plate in real time. When the pressure reaches the set value, the controller quickly starts the negative pressure fan and opens the electric valve to discharge the large amount of air generated by the bursting of bubbles inside the frame plate through the discharge pipe. This technology not only ensures the stable circulation and conveying of lubricating oil, but also removes excess air in a timely manner, effectively reducing the impact of bubbles on the performance of lubricating oil, improving the reliability and stability of equipment operation, and significantly improving the anti-foaming effect of lubricating oil. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the anti-foaming device for lubricating oil in the wind turbine gearbox of the present invention.

[0016] Figure 2 This is a schematic diagram of the vertical cross-section of the anti-foaming device for lubricating oil in the wind turbine gearbox of the present invention.

[0017] Figure 3 This is a partial structural diagram of the vertical cross-section at the connection between the linkage bar and the lifting arc plate of the present invention.

[0018] Figure 4 This is a partial structural diagram of the vertical cross-section at the connection between the linkage bar and the linkage block of the present invention.

[0019] Figure 5 This is a partial structural diagram of the vertical section cut at the connection between the arc-shaped strip and the linkage support strip of the present invention.

[0020] Figure 6 This is a partial structural diagram of the connection between the rack and the helical gear of the present invention.

[0021] Figure 7 For the present invention Figure 2 Enlarged structural diagram at point A in the middle.

[0022] Figure 8 This is a top view of the anti-foaming device for lubricating oil in the wind turbine gearbox of the present invention.

[0023] The attached diagram is labeled as follows: 1. Anti-foaming tube; 2. Frame plate; 3. Filter cotton disc; 4. Filter hole; 5. Lifting arc plate; 6. Filter rectangular hole; 7. Linkage bar; 8. Linkage block; 9. Electric cylinder; 10. Support ring; 11. Positioning sleeve; 12. Sealing sleeve; 13. Arc-shaped bar; 14. Linkage support bar; 15. Rotating bar; 16. Rotating ring; 17. Rotating shaft; 18. Drive motor; 19. Rack; 20. Toothed hole; 21. Helical toothed plate; 22. Helical groove; 23. Negative pressure fan; 24. Electric valve; 25. Discharge pipe; 26. Pressure sensor; 27. Connecting pipe; 28. Butt joint pipe; 29. ​​Connecting pipe; 30. Delivery pipe; 31. Flow meter; 32. Controller; 33. Delivery pump; 34. Connecting valve; 35. Collar. Detailed Implementation

[0024] 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.

[0025] like Figure 1 - Figure 8 The device shown is an anti-foaming device for lubricating oil in a fan gearbox. This device includes a collection and anti-foaming treatment component, an arc-shaped linkage puncture component, and a constant-force conveying component. The arrangement of these components allows the lubricating oil to drain downwards through the rectangular filter holes 6 of the lifting arc plate 5, while simultaneously collecting air bubbles from the side of the filter cotton disc 3 onto the outer wall of the arc-shaped strip 13. The entire process is efficient and orderly, rapidly collecting and processing these air bubbles, resulting in better anti-foaming effects for the lubricating oil. The specific structural configuration of each component is as follows.

[0026] In this technical solution, such as Figure 1 - Figure 4 As shown, the frame plate 2 is fixedly connected to the top of the outer wall of the anti-foaming tube 1, and the filter cotton disc 3 is fixedly connected to the inner wall of the anti-foaming tube 1. A foam-collecting and anti-foaming treatment component is provided on one side of the inner wall of the filter cotton disc 3. The foam-collecting and anti-foaming treatment component includes a lifting arc plate 5 slidably disposed on one side of the inner wall of the filter cotton disc 3. Multiple filter holes 4 are opened on the inner wall of the filter holes 4, and multiple rectangular filter holes 6 are opened on the inner wall of the lifting arc plate 5. A linkage bar 7 is fixedly connected to the upper surface of the lifting arc plate 5, and a linkage block 8 is fixedly connected to the top of the linkage bar 7. The linkage bar 7 is slidably connected to the frame plate 2. A support ring 10 is fixedly connected to the lower surface of the linkage block 8, and an electric cylinder 9 is installed inside the support ring 10. The outer wall of the electric cylinder 9 is fixedly connected to the anti-foaming tube 1. The outer wall of the linkage bar 7 and the inner wall of the frame plate 2 are both smooth surfaces, and the vertical cross-sectional shape formed by the linkage bar 7 and the linkage block 8 is L-shaped.

[0027] In this technical solution, such as Figure 4 As shown, the top of the inner wall of the anti-foaming tube 1 and the top of the frame plate 2 are fixedly connected with positioning sleeves 11, and the inner wall of the positioning sleeves 11 is fixedly connected with sealing sleeves 12. The inner wall of the sealing sleeves 12 is slidably connected to the linkage strip 7, so that the linkage strip 7 can move upward along the inner wall of the sealing sleeves 12 and the frame plate 2 to achieve sealing treatment and realize docking sealing operation.

[0028] In this technical solution, such as Figure 2 - Figure 6 As shown, an arc-shaped strip 13 is rotatably connected to one side of the inner wall of the frame plate 2 and near its top position; an arc-shaped linkage puncture assembly is provided on one side of the arc-shaped strip 13; the arc-shaped linkage puncture assembly includes a linkage support 14, a rotating strip 15, a rotating ring 16, a rotating shaft 17 and a drive motor 18, the linkage support 14 is fixed on the inner wall of the arc-shaped strip 13, and the rotating strip 15 is fixed on one side of the outer wall of the linkage support 14.

[0029] The rotating bar 15 is fixedly connected to the arc-shaped bar 13. The rotating ring 16 is fixed to the top of the linkage support bar 14. The rotating shaft 17 is fixedly located on the inner wall of the rotating ring 16, and the drive motor 18 is installed at one end of the rotating shaft 17. The drive motor 18 is fixedly connected to the frame plate 2. Multiple racks 19 are fixedly connected to the outer wall of the arc-shaped bar 13. Multiple toothed holes 20 are opened on one side of the rack 19. Inclined toothed plates 21 are fixedly connected to both sides of the rack 19, and multiple inclined grooves 22 are opened on the inner wall of the inclined toothed plates 21. The drive motor 18 is electrically connected to the controller 32 and is used to drive the rotating shaft 17 to rotate. The multiple toothed holes 20 are arranged equidistantly from front to back, and the multiple inclined grooves 22 are arranged equidistantly from front to back.

[0030] In this technical solution, such as Figure 7 - Figure 8 As shown, a negative pressure fan 23 is fixedly connected to the top of the frame plate 2 near its middle position. The output end of the negative pressure fan 23 is provided with a constant force conveying assembly. The constant force conveying assembly includes an electric valve 24, a discharge pipe 25, a pressure sensor 26, and a collar 35. The electric valve 24 is fixedly connected to the output end of the negative pressure fan 23, and the discharge pipe 25 is threadedly connected to one end of the electric valve 24. The pressure sensor 26 is located on one side of the electric valve 24 and is fixedly connected to the frame plate 2. A collar 35 is fixedly installed on the outer wall of the pressure sensor 26.

[0031] One end of the anti-foaming pipe 1 is fixedly connected to a connecting pipe 27. A connecting pipe 28 is fixedly connected to one end of the connecting pipe 27, and a connecting pipe 29 is fixedly connected to one end of the connecting pipe 28. The other end of the anti-foaming pipe 1 is fixedly connected to a delivery pipe 30. One end of the delivery pipe 30 is threadedly connected to a flow meter 31, and a controller 32 is fixedly installed on one side of the flow meter 31. A delivery pump 33 is fixedly installed on one end of the flow meter 31, and a docking valve 34 is threadedly connected to the input end of the delivery pump 33. Both the connecting pipe 29 and the connecting pipe 27 are connected to the connecting pipe 28. The inner walls of the connecting pipe 29, the connecting pipe 28, and the connecting pipe 27 are all smooth surfaces. The delivery pump 33 is used to pressurize and input lubricating oil, and both the docking valve 34 and the flow meter 31 are electrically connected to the controller 32. The inner diameter of the anti-foaming pipe 1 is larger than the inner diameter of the connecting pipe 27.

[0032] The working principle of the anti-foaming device for lubricating oil in the fan gearbox of this invention is as follows: Step 1: When installing the fan gearbox, connect the connecting pipe 29 to one end of the fan gearbox and connect the connecting valve 34 to the other end of the fan gearbox to form a connection.

[0033] Step 2: During constant force delivery, the controller 32 opens the docking valve 34 and the delivery pump 33. The delivery pump 33 then delivers the lubricating oil from inside the fan gearbox to the docking valve 34, from which it flows into the delivery pump 33. The oil then enters the flow meter 31 through the delivery pump 33, and simultaneously, the flow meter 31 delivers the oil to the delivery pipe 30 according to the specified flow rate. From the delivery pipe 30, the oil flows into the anti-foaming pipe 1, from the anti-foaming pipe 1 into the connecting pipe 27, from the connecting pipe 27 into the connecting pipe 28, from the connecting pipe 28 into the connecting pipe 29, and finally into the fan gearbox through the connecting pipe 29.

[0034] Step 3: During the anti-foaming treatment, the filter cotton disc 3 is filtered through multiple filter holes 4. The air bubbles adhere to the surface of the filter cotton disc 3. The controller 32 starts the electric cylinder 9, which pushes the linkage block 8 upward. The linkage block 8 drives the linkage bar 7 upward. The linkage bar 7 moves upward along the inner wall of the sealing sleeve 12 and the frame plate 2 to achieve sealing treatment. At the same time, the frame plate 2 supports the positioning sleeve 11, and the positioning sleeve 11 supports the sealing sleeve 12. After a stable test, the linkage bar 7 moves upward, which drives the lifting arc plate 5 upward. The lifting arc plate 5 moves upward along the filter cotton disc 3. At the same time, the lubricating oil flows out downward along the holes of the lifting arc plate 5. Meanwhile, a large number of air bubbles on the side of the filter cotton disc 3 are moved upward and collected on the inner wall. The large number of air bubbles inside the lifting arc plate 5 are collected to the outer wall of the arc bar 13.

[0035] Step 4: During the arc-shaped linkage puncture, the drive motor 18 is started via the controller 32. The drive motor 18 drives the rotating shaft 17 to rotate 10 degrees forward and backward. The rotating shaft 17 drives the rotating ring 16 to rotate 10 degrees forward and backward. The rotating ring 16 drives the linkage support bar 14 to rotate 10 degrees forward and backward. The linkage support bar 14 drives the rotating bar 15 to rotate 10 degrees forward and backward. Both the linkage support bar 14 and the rotating bar 15 drive the arc-shaped bar 13 to rotate 10 degrees forward and backward. The arc-shaped bar 13 drives multiple racks 19 to rotate 10 degrees forward and backward. At the same time, the racks 19 drive two helical toothed plates 21 to rotate 10 degrees forward and backward. In this way, the toothed hole 20 and the inclined groove 22 both rotate 10 degrees forward and backward. The racks 19 and the helical toothed plates 21 puncture the air bubbles inside the lifting arc plate 5 by rotating 10 degrees forward and backward. The lubricating oil treated in this way is free of air bubbles and flows into the connecting pipe 27 and the connecting pipe 28, and continues to enter the fan gearbox through the connecting pipe 29.

[0036] Meanwhile, the pressure sensor 26 can sense the pressure of the air inside the frame plate 2. When the pressure air returns to the pressure value set by the controller 32, the negative pressure fan 23 is started by the controller 32. At the same time, the controller 32 opens the electric valve 24, so that a large amount of air generated by the bursting of bubbles inside the frame plate 2 is transported to the electric valve 24 by the negative pressure fan 23, and then injected into the discharge pipe 25 by the electric valve 24, and discharged externally through the discharge pipe 25.

[0037] All contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are not shown in the figures because they are existing technologies, and will not be described here.

[0038] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fan gearbox lubricating oil anti-foaming device, comprising an anti-foaming pipe (1), a frame plate (2), a filter cotton disc (3), and a controller (32), characterized in that: The frame plate (2) is fixedly connected to the top of the outer wall of the anti-foaming tube (1), the filter cotton disc (3) is fixedly connected to the inner wall of the anti-foaming tube (1), and a foam collection and anti-foaming treatment component is provided on one side of the inner wall of the filter cotton disc (3). The anti-foaming treatment assembly includes a lifting arc plate (5) that is slidably disposed on one side of the inner wall of the filter cotton disc (3). The inner wall of the filter cotton disc (3) is provided with multiple filter holes (4). The inner wall of the lifting arc plate (5) is provided with multiple filter rectangular holes (6). A linkage bar (7) is fixedly connected to the upper surface of the lifting arc plate (5). A linkage block (8) is fixedly connected to the top of the linkage bar (7). The linkage bar (7) is slidably connected to the frame plate (2). A support ring (10) is fixedly connected to the lower surface of the linkage block (8). An electric cylinder (9) is installed inside the support ring (10). The outer wall of the electric cylinder (9) is fixedly connected to the anti-foaming tube (1).

2. The anti-foaming device for lubricating oil in a fan gearbox according to claim 1, characterized in that: The outer wall of the linkage bar (7) and the inner wall of the frame plate (2) are both smooth surfaces, and the linkage bar (7) and the linkage block (8) form an L-shaped vertical cross section.

3. The anti-foaming device for lubricating oil in a fan gearbox according to claim 1, characterized in that: The top of the inner wall top frame plate (2) of the anti-foaming tube (1) is fixedly connected to a positioning sleeve (11), and the inner wall of the positioning sleeve (11) is fixedly connected to a sealing sleeve (12), and the inner wall of the sealing sleeve (12) is slidably connected to the linkage strip (7).

4. The anti-foaming device for lubricating oil in a fan gearbox according to claim 1, characterized in that: An arc-shaped strip (13) is rotatably connected to one side of the inner wall of the frame plate (2) and near its top. One side of the arc-shaped strip (13) is provided with an arc-shaped linkage piercing component; The arc-shaped linkage puncture assembly includes a linkage support bar (14), a rotating bar (15), a rotating ring (16), a rotating shaft (17), and a drive motor (18). The linkage support bar (14) is fixed on the inner wall of the arc-shaped bar (13). The rotating bar (15) is fixed on one side of the outer wall of the linkage support bar (14), and the rotating bar (15) is fixedly connected to the arc-shaped bar (13). The rotating ring (16) is fixed at the top of the linkage support bar (14). The rotating shaft (17) is fixed on the inner wall of the rotating ring (16), and the drive motor (18) is installed at one end of the rotating shaft (17). The drive motor (18) is fixedly connected to the frame plate (2). The outer wall of the arc-shaped strip (13) is fixedly connected with a plurality of toothed racks (19), and a plurality of toothed holes (20) are opened on one side of the toothed rack (19). Both sides of the toothed rack (19) are fixedly connected with inclined toothed pieces (21), and the inner wall of the inclined toothed pieces (21) is provided with a plurality of inclined grooves (22).

5. The anti-foaming device for lubricating oil in a fan gearbox according to claim 5, characterized in that: The drive motor (18) is electrically connected to the controller (32), and the drive motor (18) is used to drive the rotating shaft (17) to rotate.

6. The anti-foaming device for lubricating oil in a fan gearbox according to claim 1, characterized in that: The plurality of tooth holes (20) are arranged at equal intervals from front to back, and the plurality of inclined grooves (22) are arranged at equal intervals from front to back.

7. The anti-foaming device for lubricating oil in a fan gearbox according to claim 1, characterized in that: A negative pressure fan (23) is fixedly connected to the top of the frame plate (2) and near its middle position. The output end of the negative pressure fan (23) is provided with a constant force conveying component. The constant force delivery assembly includes an electric valve (24), a discharge pipe (25), a pressure sensor (26), and a collar (35). The electric valve (24) is fixedly connected to the output end of the negative pressure fan (23), and the discharge pipe (25) is threadedly connected to one end of the electric valve (24). The pressure sensor (26) is located on one side of the electric valve (24) and is fixedly connected to the frame plate (2). A collar (35) is fixedly installed on the outer wall of the pressure sensor (26). One end of the anti-foaming pipe (1) is fixedly connected to a connecting pipe (27), one end of the connecting pipe (27) is fixedly connected to a connecting pipe (28), and one end of the connecting pipe (28) is fixedly connected to a connecting pipe (29). The other end of the anti-foaming pipe (1) is fixedly connected to a conveying pipe (30). The conveying pipe (30) drives a flow meter (31) to be threadedly connected to one end. A controller (32) is fixedly installed on one side of the flow meter (31). A conveying pump (33) is fixedly installed on one end of the flow meter (31), and a docking valve (34) is threadedly connected to the input end of the conveying pump (33).

8. The anti-foaming device for lubricating oil in a fan gearbox according to claim 7, characterized in that: The connecting pipe (29) and the connecting pipe (27) are connected to the connecting pipe (28), and the inner walls of the connecting pipe (29), the connecting pipe (28) and the connecting pipe (27) are all smooth surfaces.

9. The anti-foaming device for lubricating oil in a fan gearbox according to claim 7, characterized in that: The delivery pump (33) is used to pressurize and input lubricating oil, and the docking valve (34) and flow meter (31) are both electrically connected to the controller (32).

10. The anti-foaming device for lubricating oil in a fan gearbox according to claim 7, characterized in that: The docking valve (34) and the delivery pump (33) are both electrically connected to the controller (32), and the inner diameter of the anti-foaming pipe (1) is greater than the inner diameter of the connecting pipe (27).

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