Special tool for extracting oil from fan bearing

Abstract

The utility model discloses a special tool for oil extraction of a fan bearing, and particularly relates to the technical field of oil extraction of bearings, the special tool comprises a main body rod mechanism, an auxiliary assembly and a collecting assembly, the auxiliary assembly is installed on the outer diameter surface of the main body rod mechanism, and the collecting assembly is installed below the main body rod mechanism. The main body rod mechanism comprises an oil extraction assembly, a rod body assembly and a control assembly, the rod body assembly is installed below the oil extraction assembly, the control assembly is installed on the side face of the rod body assembly, an oil extraction head can flexibly rotate in a three-dimensional space through a rotating universal joint, an operator only needs to gently control a rotating handle on a guide pulley, and the oil extraction head can be driven to rotate in the three-dimensional space. The direction of the oil extraction head part can be accurately changed by rotating the oil extraction head part, the oil extraction head part can easily reach and be tightly attached to a part needing to be cleaned no matter a bent oil return channel or a dead angle area hidden in the deep position of a bearing, the operation difficulty is greatly reduced, and the oil extraction process is smoother and more accurate.

Description

Technical Field

[0001] This utility model relates to the field of bearing oil removal technology, and more specifically, to a special tool for removing oil from wind turbine bearings. Background Technology

[0002] Bearing oil removal tools are a type of instrument specifically designed to remove waste grease from bearing parts. They are designed to address the waste grease that accumulates in bearings during operation due to impurities and oxidation. They are tailored to the structural characteristics, working environment, and maintenance needs of the bearing and come in various types, from simple manual scraping devices to automated cleaning equipment with complex mechanical structures and multiple advanced technologies. The aim is to solve the problem of waste grease accumulation in bearings in an efficient and convenient way. Bearing oil removal tools are widely used in power energy, transportation, and steel metallurgy.

[0003] A search revealed that CN221032962U discloses an automatic grease collection device for the main bearing of a wind turbine, comprising two parallel fixed plates. A scraper is located at one end of each plate, and adjusting grooves are formed on the sidewalls of both plates near the scraper. The scraper is movably connected to these grooves on both sides. Oil baffles are fixed to the bottom of both plates on their adjacent sides, with through-holes on the side facing the scraper. An oil collection groove is formed at the top of each oil baffle, and an oil collection cavity is formed on the inner wall of each fixed plate. The beneficial effects of this invention are: reducing wind turbine downtime due to obstruction of the speed sensor; reducing wind turbine maintenance time due to periodic cleaning of waste grease from the main bearing; and avoiding the risk of skin corrosion from manual grease cleaning. The inventors discovered the following problems with the existing technology during the development of this invention:

[0004] Most traditional wind turbine bearing oil removal tools have a simple and crude structure. For example, some simple scrapers consist of only a rigid rod connected to a flat scraper head. During operation, it requires manual experience and considerable force to insert the scraper into the bearing gap or oil return channel. It is difficult to accurately control the force and angle, which can easily cause scratch damage to the bearing components. Moreover, the labor intensity of the operator is extremely high. In addition, the handle lacks ergonomic design, which can easily lead to hand fatigue, soreness, and even occupational injury during long-term operation, reducing work efficiency. Furthermore, traditional wind turbine bearing oil removal tools do not have a matching collection device. The scraped waste grease is scattered everywhere, which not only pollutes the surrounding environment and makes subsequent cleaning work cumbersome, but may also cause the waste grease to flow back into the bearing, causing secondary pollution and affecting the cleaning effect.

[0005] Therefore, a special tool for draining oil from wind turbine bearings is proposed to address the above problems. Summary of the Invention

[0006] In order to overcome the above-mentioned defects of the prior art, this utility model provides a special tool for draining oil from wind turbine bearings, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a special tool for draining oil from wind turbine bearings, comprising a main rod mechanism, an auxiliary component, and a collection component. The auxiliary component is mounted on the outer diameter surface of the main rod mechanism, and the collection component is mounted below the main rod mechanism. The main rod mechanism includes an oil draining component, a rod assembly, and a control component. The rod assembly is mounted below the oil draining component, and the control component is mounted on the side of the rod assembly.

[0008] Preferably, the auxiliary component includes a first rubber blade, a second rubber blade, and a retaining ring, wherein the retaining ring is mounted on the side of the first rubber blade, and the second rubber blade is mounted on the side of the retaining ring away from the first rubber blade.

[0009] Preferably, the collection component includes an oil collection box, an oil collection cover, and a cleaning brush, with the oil collection cover installed on the top of the oil collection box and the cleaning brush placed on the upper part of the inner wall of the oil collection box.

[0010] Preferably, the oil extraction assembly includes an oil extraction head, a first connecting post, and a rotary universal joint, wherein the first connecting post is mounted on the side of the oil extraction head, and the rotary universal joint is mounted on the side of the first connecting post away from the oil extraction head.

[0011] Preferably, the rod assembly includes a rod, a second connecting post, and a handle, with the handle installed at the bottom of the rod and the second connecting post installed at the top of the rod.

[0012] Preferably, the control component includes a control rope, a first guide pulley, and a second guide pulley, with the first guide pulley placed below the control rope and the second guide pulley placed on the side of the first guide pulley.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] 1. Compared with existing technologies, this special tool for draining oil from wind turbine bearings allows the drain head to rotate flexibly in three-dimensional space through a universal joint. Operators only need to gently operate the rotating handle on the guide pulley to accurately change the direction of the drain head. Whether it is a curved oil return channel or a dead corner area hidden deep in the bearing, the drain head can easily reach it and fit closely to the part that needs to be cleaned, which greatly reduces the difficulty of operation and makes the draining process smoother and more precise.

[0015] 2. Compared with existing technologies, this special tool for draining oil from wind turbine bearings uses a collection component to collect the waste oil removed from the bearings. The oil collection box is made of transparent polycarbonate material, offering a high degree of visibility. During the draining process, operators can observe the amount of waste grease collected through the box at any time, clearly understanding the cleaning progress. Furthermore, the cleaning brush inside the collection box ensures that the grease is evenly distributed as it flows into the box, preventing grease buildup in localized areas. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the special tool for draining oil from wind turbine bearings according to this utility model.

[0017] Figure 2 This is a three-dimensional structural diagram of the groove ring of the special tool for draining oil from wind turbine bearings according to this utility model.

[0018] Figure 3 This is a three-dimensional structural diagram of the collection component of the special tool for draining oil from wind turbine bearings according to this utility model.

[0019] Figure 4 This is a three-dimensional structural diagram of the control component of the special tool for draining oil from wind turbine bearings according to this utility model.

[0020] The attached figures are labeled as follows: 1. Main rod mechanism; 2. Auxiliary component; 3. Collection component; 4. Oil scooping component; 5. Rod body assembly; 6. Control component; 7. First rubber blade; 8. Second rubber blade; 9. Slotted ring; 10. Oil collection box; 11. Oil collection cover; 12. Cleaning brush; 13. Oil scooping head; 14. First connecting column; 15. Rotary universal joint; 16. Rod body; 17. Second connecting column; 18. Handle; 19. Control rope; 20. First guide pulley; 21. Second guide pulley. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0022] As attached Figures 1 to 4The wind turbine bearing oil draining tool shown includes a main rod mechanism 1, an auxiliary component 2, and a collection component 3. The auxiliary component 2 is installed on the outer diameter surface of the main rod mechanism 1, and the collection component 3 is installed below the main rod mechanism 1. The main rod mechanism 1 includes an oil draining component 4, a rod assembly 5, and a control component 6. The rod assembly 5 is installed below the oil draining component 4, and the control component 6 is installed on the side of the rod assembly 5.

[0023] Specifically: When a worker uses a wind turbine bearing oil removal tool to clean the waste grease from the wind turbine bearing through the bearing oil return passage, the worker first removes the collection component 3 connected by threads at the back of the main rod mechanism 1 and places it below the wind turbine bearing. Then, the worker holds the main rod mechanism 1 with one hand and inserts it into the bearing oil return passage. After the oil removal tool is inserted, the auxiliary component 2, which is fixed to the outer diameter surface by bolts, will retract inward due to the restriction of the outer wall of the oil return passage. At this time, the worker needs to use the control component 6 to control the position of the oil removal component 4 and clean the inner wall of the oil return passage from multiple angles. The grease that falls off will be carried to the outside of the wind turbine bearing by the auxiliary component 2 on the outer diameter surface of the rod assembly 5 and finally fall into the collection component 3. Example

[0024] Based on Example 1, the solution in Example 1 will be further described in detail below with reference to the specific working method, such as... Figures 1 to 4 As shown below, see details:

[0025] In a preferred embodiment, a retaining ring 9 is installed on the side of the first rubber blade 7, and the first rubber blade 7 and the retaining ring 9 are connected by a retaining ring. A second rubber blade 8 is installed on the side of the retaining ring 9 away from the first rubber blade 7, and the second rubber blade 8 is connected to the retaining ring by a retaining ring. When the worker uses an oil-removing tool to clean the fan bearing, the first rubber blade 7 and the second rubber blade 8 will shrink due to their own characteristics when they enter the oil return channel and fit tightly against the inner wall of the oil return channel. When the worker uses the oil-removing tool to repeatedly work inside the fan bearing, the rubber blade connected by the retaining ring 9 will collect the grease cleaned by the oil-removing head 13 and remove it from the oil return channel with the oil-removing tool, thus pushing the cleaned grease out of the fan bearing.

[0026] In a preferred embodiment, an oil collection cover 11 is installed on top of the oil collection box 10. The oil collection box 10 and the oil collection cover 11 are connected by threads. A cleaning brush 12 is placed on the upper part of the inner wall of the oil collection box 10. When the cleaned grease falls from the fan bearing into the oil collection box 10, the cleaning brush 12 on top of the oil collection box 10 will disperse the grease in various parts of the oil collection box 10, preventing the grease from accumulating in one part of the oil collection box 10. After the fan bearing is cleaned, the worker needs to connect the oil collection cover 11 and the oil collection box 10 by threads, and fix the oil collection cover 11 to the back of the oil removal tool by threads.

[0027] In a preferred embodiment, a first connecting post 14 is bolted to the side of the oil-scooping head 13. A rotary universal joint 15 is installed on the side of the first connecting post 14 away from the oil-scooping head 13. The first connecting post 14 and the rotary universal joint 15 are connected by threads. The first connecting post 14 connects the oil-scooping head 13 and the rotary universal joint 15. When the worker needs to clean some dead corners inside the fan bearing, the worker needs to control the rotation angle of the rotary universal joint 15 through the control component 6 so that the oil-scooping head 13 can clean the dead corners properly.

[0028] In a preferred embodiment, a handle 18 is bolted to the lower part of the rod 16, and a second connecting post 17 is bolted to the upper part of the rod 16, the second connecting post 17 connecting the handle 18 and the rod 16.

[0029] In a preferred embodiment, a first guide pulley 20 is placed below the control rope 19, and a second guide pulley 21 is placed on the side of the first guide pulley 20. The control rope 19 is fixed to the first guide pulley 20 in a clockwise direction, while the winding direction of the control rope 19 on the second guide pulley 21 is counterclockwise. When the worker needs to use the control component 6 to rotate the direction of the universal joint 15, the worker can control the direction of rotation of the universal joint 15 by rotating the guide pulley. Since one end of the control rope 19 is fixed to the universal joint 15, the worker can control the direction of rotation of the universal joint 15 by controlling the rotation of the guide pulley.

[0030] The working process of this utility model is as follows: First, when the worker uses the fan bearing oil removal tool to clean the waste grease in the fan bearing through the bearing oil return passage, the worker first removes the collection component 3 connected by threads at the back of the main rod mechanism 1 and places it below the fan bearing. Then, holding the handle 18 with one hand, the worker inserts the main rod mechanism 1 into the bearing oil return passage. After the oil removal tool is inserted, the auxiliary component 2, which is fixed to its outer surface by bolts, will retract inward due to the restriction of the outer wall of the oil return passage. At this time, the worker needs to use the control component 6 to rotate the direction of the universal joint 15. The worker can control the control rope 19 by rotating the first guide pulley 20 or the second guide pulley 21. Because one end of the control rope 19 is fixed to the universal joint 15, the worker can control the direction of rotation of the universal joint 15 by controlling the rotation of the guide pulley. One side of the universal joint 15 is connected to the oil extraction head 13 via the first connection, which allows the oil extraction head 13 to clean the inner wall of the oil return channel from multiple angles. The grease that is cleaned off is carried to the outside of the fan bearing by the auxiliary component 2 on the outer diameter surface of the rod assembly 5. The second connecting post 17 of the rod assembly 5 connects the rod 16 and the oil extraction assembly 4, and finally falls into the collection assembly 3. When the cleaned grease falls from the fan bearing into the oil collection box 10 of the collection assembly 3, the cleaning brush 12 above the oil collection box 10 will disperse the grease in all parts of the oil collection box 10, preventing the grease from accumulating in one part of the oil collection box 10. After the fan bearing is cleaned, the worker needs to connect the oil collection cover 11 and the oil collection box 10 with threads, and fix the oil collection cover 11 to the back of the oil extraction tool with threads. The above is the working principle of this special tool for cleaning oil from fan bearings.

Claims

1. A special tool for oil extraction of fan bearings, comprising a main body rod mechanism (1), an auxiliary assembly (2) and a collection assembly (3), characterized in that: The outer diameter surface of the main rod mechanism (1) is provided with an auxiliary assembly (2), and the lower part of the main rod mechanism (1) is provided with a collection assembly (3), and the main rod mechanism (1) comprises an oil scooping assembly (4), a rod body assembly (5) and a control assembly (6), and the lower part of the oil scooping assembly (4) is provided with the rod body assembly (5), and the side of the rod body assembly (5) is provided with the control assembly (6).

2. The fan bearing oil extraction tool of claim 1, wherein: The auxiliary assembly (2) comprises a first rubber blade (7), a second rubber blade (8) and a clamping groove ring (9), and the side of the first rubber blade (7) is provided with the clamping groove ring (9), and the side, away from the first rubber blade (7), of the clamping groove ring (9) is provided with the second rubber blade (8).

3. The fan bearing oil extraction tool of claim 1, wherein: The collection assembly (3) comprises an oil collecting box (10), an oil collecting cover (11) and a cleaning brush (12), and the upper part of the oil collecting box (10) is provided with the oil collecting cover (11), and the cleaning brush (12) is placed on the inner wall of the oil collecting box (10).

4. The fan bearing oil extraction tool of claim 1, wherein: The oil scooping assembly (4) comprises an oil scooping head (13), a first connecting column (14) and a rotary universal joint (15), and the side of the oil scooping head (13) is provided with the first connecting column (14), and the side, away from the oil scooping head (13), of the first connecting column (14) is provided with the rotary universal joint (15).

5. The fan bearing oil extraction tool of claim 1, wherein: The rod body assembly (5) comprises a rod body (16), a second connecting column (17) and a handle (18), and the lower part of the rod body (16) is provided with the handle (18), and the upper part of the rod body (16) is provided with the second connecting column (17).

6. The fan bearing oil extraction tool of claim 1, wherein: The control assembly (6) comprises a control rope (19), a first guide pulley (20) and a second guide pulley (21), and the lower part of the control rope (19) is provided with the first guide pulley (20), and the side of the first guide pulley (20) is provided with the second guide pulley (21).

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