Lubricating device for heavy-duty bearing of wind turbine generator
By designing an automatic lubrication device for heavy-load bearings of wind turbines, the problem of the arm being covered with lubricating oil in the prior art is solved by the need for freehand operation by staff members, and a safe and effective lubrication process is achieved.
Patent Information
- Application Number
- CN202421578018.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-05
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-07-05
AI Technical Summary
In the prior art, the heavy-load bearing of the wind turbine unit requires staff to place and remove it with bare hands when lubricating, resulting in lubricating oil on the arms, which may have adverse health effects.
A heavy-load bearing lubrication device for wind turbines is designed, including a base plate, an oil box and a limiting structure. The bearing is automatically placed into the lubricating oil in the oil box through the servo motor and the screw drive arm movement.
It avoids the need for staff to operate with bare hands, reduces the risk of lubricant sticking, and reduces the possibility that staff will be harmed by lubricant.
Smart Images
Figure CN222615487U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of heavy-load bearings for wind turbines, in particular to a lubricating device for heavy-load bearings for wind turbines. Background Art
[0002] Bearings are important mechanical components used to support and position rotating or moving shafts or bearing parts. Heavy-duty bearings of wind turbines are usually used to bear the weight of the entire blades and the huge inertial force caused by wind. These bearings need to have high strength, wear resistance, high temperature resistance and self-lubrication to ensure the stable operation and long-term use of wind turbines.
[0003] The existing related technologies often have the following defects: when lubricating the heavy-loaded bearings of the wind turbine, the bearings are immersed in lubricating oil so that the lubricating oil is evenly coated on the bearing surface to achieve the lubrication effect. The existing immersion bearings are to place the heavy-loaded bearings of the wind turbine directly into the oil box. When placing or taking out, the staff needs to place and take out by hand, which easily causes the staff's arms to be stained with lubricating oil. The lubricating oil may contain harmful chemical components, which may have adverse effects on health.
[0004] Therefore, the utility model provides a heavy-load bearing lubrication device for a wind turbine generator set. Utility Model Content
[0005] The utility model aims to solve the disadvantage in the prior art that heavy-loaded bearings of wind turbines need to be placed in an oil box or taken out by workers with bare hands, and proposes a lubricating device for heavy-loaded bearings of wind turbines.
[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a heavy-duty bearing lubrication device for a wind turbine generator set, comprising a base plate and a heavy-duty bearing body of the wind turbine generator set, the surface of the base plate is fixedly connected to an oil box, the surface of the base plate is provided with a limiting structure, the limiting structure comprises a support arm, the support arm is fixedly connected to the surface of the base plate, the surface of the support arm is fixedly connected to a servo motor, the output end of the servo motor is fixedly connected to a lead screw, the end of the lead screw away from the servo motor is rotatably connected to the surface of the base plate, the surface of the lead screw is threadedly connected to a driving arm, the surface of the driving arm is fixedly connected to an extension plate, both sides of the extension plate are rotatably connected to threaded rods, the surface of the threaded rod is threadedly connected to a bracket, and the surface of the bracket is fixedly connected to the limiting plate.
[0007] The effect achieved by the above components is: by setting a limit structure, it is convenient to place the heavy-loaded bearing body of the wind turbine into the lubricating oil in the oil box, thereby avoiding the need for workers to place and remove it by hand, thereby avoiding the effect of the workers' arms being contaminated with lubricating oil, and reducing the effect of the workers being harmed by the lubricating oil.
[0008] Preferably, a round rod is slidably penetrated through the surface of the bracket, and the round rod is fixedly connected to the surface of the extension plate.
[0009] The effect achieved by the above components is that the bracket will slide along the surface of the round rod when it moves, and the round rod limits the moving path of the bracket, thereby preventing the bracket from rotating when it moves.
[0010] Preferably, one end of the threaded rod away from the extension plate is fixedly connected to a turntable, and the vertical section of the turntable is in a "cross" shape.
[0011] The effects achieved by the above components are: the rotation of the turntable will drive the threaded rod, and the turntable can facilitate the rotation of the threaded rod.
[0012] Preferably, a plurality of anti-skid pads are fixedly connected to a side of the limiting plate away from the bracket, and the anti-skid pads are made of rubber.
[0013] The effect achieved by the above components is: the limit plate will drive the anti-skid pad to squeeze on the inner wall of the heavy-loaded bearing body of the wind turbine generator set, and the anti-skid pad can increase the friction force after the limit plate and the inner wall of the heavy-loaded bearing body of the wind turbine generator set are attached, thereby improving the effect of limiting the heavy-loaded bearing body of the wind turbine generator set.
[0014] Preferably, the surface of the oil box is provided with an auxiliary structure, which includes two U-shaped frames, both of which are fixedly connected to the surface of the oil box, the inner walls of the two U-shaped frames are slidably connected with rectangular plates, one side of the rectangular plate is fixedly connected with a driving plate, a driving rod is threadedly penetrated by the surface of the oil box, and one end of the driving rod close to the rectangular plate is rotatably connected with a pressure plate, a pin is slidably inserted on the surface of the U-shaped frame, and two circular grooves are provided on the surface of the rectangular plate, and the size of the pin is adapted to the size of the circular groove.
[0015] The effect achieved by the above components is: by setting the auxiliary structure, it is easy to drive the heavy-loaded bearing body of the wind turbine generator set to rotate when the heavy-loaded bearing body of the wind turbine generator set is immersed, thereby ensuring that the bearing can be fully lubricated.
[0016] Preferably, a groove is provided on one side of the pressure plate close to the rectangular plate, and a plurality of rotating wheels are rotatably connected to the inner wall of the groove.
[0017] The effect achieved by the above components is that the rectangular plate will slide along the surface of the rotating wheel when moving, and the rotating wheel can reduce the friction force when the rectangular plate slides on the surface of the pressure plate, thereby facilitating the pulling of the driving plate to move.
[0018] Preferably, the arc surface of the latch is sleeved with a spring, and two ends of the spring are respectively fixedly connected to the latch and the U-shaped frame.
[0019] The effect achieved by the above components is that the latch is reset with the help of the contraction force of the spring, and the spring reaches the position to limit the latch, thereby preventing the latch from being lost due to shaking.
[0020] In summary:
[0021] 1. In the utility model, a limiting structure is provided to limit the heavy-load bearing body of the wind turbine set by moving the limiting plate, and then the servo motor is driven. The servo motor drives the screw rod to rotate, and the rotation of the screw rod drives the driving arm to move with the help of the thread, thereby driving the heavy-load bearing body of the wind turbine set to move toward the oil box. When the heavy-load bearing body of the wind turbine set moves to a suitable position, the heavy-load bearing body of the wind turbine set will be immersed in the lubricating oil in the oil box, thereby immersing the heavy-load bearing body of the wind turbine set in the lubricating oil.
[0022] 2. In the utility model, by setting an auxiliary structure, when the driving plate is tightly fitted to the surface of the heavy-loaded bearing body of the wind turbine set, the rectangular plate is repeatedly pulled and pushed, and the rectangular plate will drive the driving plate to slide back and forth along the surface of the heavy-loaded bearing body of the wind turbine set. The heavy-loaded bearing body of the wind turbine set will rotate with the help of the force of the driving plate, thereby ensuring that the bearing can be fully lubricated. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0024] Figure 2 It is a structural schematic diagram of the utility model from another angle;
[0025] Figure 3 It is a structural schematic diagram of the driving arm of the utility model;
[0026] Figure 4 It is a structural schematic diagram of the limit position of the utility model;
[0027] Figure 5 It is a structural schematic diagram of the oil box of the utility model;
[0028] Figure 6 It is a structural schematic diagram of the pressing plate of the utility model;
[0029] Figure 7 For this utility model Figure 5 Enlarged view of point A in .
[0030] Legend: 1. Base plate; 2. Oil box; 3. Heavy-duty bearing body of wind turbine; 4. Limiting structure; 401. Support arm; 402. Servo motor; 403. Screw rod; 404. Driving arm; 405. Extension plate; 406. Threaded rod; 407. Bracket; 408. Limiting plate; 409. Round rod; 410. Turntable; 411. Anti-skid pad; 5. Auxiliary structure; 501. U-shaped frame; 502. Rectangular plate; 503. Driving plate; 504. Driving rod; 505. Pressure plate; 506. Latch; 507. Round groove; 508. Recess; 509. Rotating wheel; 510. Spring. DETAILED DESCRIPTION
[0031] Reference Figure 1 As shown, the utility model provides a technical solution: a lubricating device for a heavy-duty bearing of a wind turbine, comprising a base plate 1 and a heavy-duty bearing body 3 of a wind turbine, the surface of the base plate 1 is fixedly connected with an oil box 2, and the surface of the base plate 1 is provided with a limiting structure 4, by providing the limiting structure 4, it is convenient to place the heavy-duty bearing body 3 of the wind turbine into the lubricating oil in the oil box 2, thereby avoiding the need for workers to place and take out by hand, thereby avoiding the effect of workers' arms being stained with lubricating oil, and reducing the effect of workers being harmed by lubricating oil. The surface of the oil box 2 is provided with an auxiliary structure 5, by providing the auxiliary structure 5, it is convenient to drive the heavy-duty bearing body 3 of the wind turbine to rotate when the heavy-duty bearing body 3 of the wind turbine is immersed, thereby ensuring that the bearing can be fully lubricated.
[0032] The specific arrangement and function of the limiting structure 4 and the auxiliary structure 5 will be described in detail below.
[0033] Reference Figure 2 - Figure 4As shown, in this embodiment: the limiting structure 4 includes a support arm 401, the support arm 401 is fixedly connected to the surface of the bottom plate 1, the support arm 401 is fixedly connected to the surface of the servo motor 402, the output end of the servo motor 402 is fixedly connected to the lead screw 403, the end of the lead screw 403 away from the servo motor 402 is rotatably connected to the surface of the bottom plate 1, the surface of the lead screw 403 is threadedly connected to the drive arm 404, the surface of the drive arm 404 is fixedly connected to the extension plate 405, both sides of the extension plate 405 are rotatably connected to the threaded rod 406, the surface of the threaded rod 406 is threadedly connected to the bracket 407, and the surface of the bracket 407 is fixedly connected to the limiting plate 408. The surface of the bracket 407 is slidably penetrated by a round rod 409, the round rod 409 is fixedly connected to the surface of the extension plate 405, and the bracket 407 moves and slides along the surface of the round rod 409, and the round rod 409 has the effect of limiting the moving path of the bracket 407, thereby preventing the bracket 407 from rotating when moving. The end of the threaded rod 406 away from the extension plate 405 is fixedly connected to a turntable 410, and the vertical section of the turntable 410 is in a "cross" shape. The rotation of the turntable 410 will drive the threaded rod 406, and the turntable 410 can facilitate the rotation of the threaded rod 406. The side of the limit plate 408 away from the bracket 407 is fixedly connected to a plurality of anti-skid pads 411, and the anti-skid pads 411 are made of rubber. The limit plate 408 will drive the anti-skid pads 411 to squeeze the inner wall of the heavy-duty bearing body 3 of the wind turbine generator set. The protective pad can increase the friction between the limit plate 408 and the inner wall of the heavy-duty bearing body 3 of the wind turbine generator set after being attached, thereby improving the effect of limiting the heavy-duty bearing body 3 of the wind turbine generator set.
[0034] Reference Figure 5 - Figure 7As shown, specifically, the auxiliary structure 5 includes two U-shaped frames 501, both of which are fixedly connected to the surface of the oil box 2, and the inner walls of the two U-shaped frames 501 are slidably connected with a rectangular plate 502, and a driving plate 503 is fixedly connected to one side of the rectangular plate 502. A driving rod 504 is threaded through the surface of the oil box 2, and a pressing plate 505 is rotatably connected to the end of the driving rod 504 close to the rectangular plate 502. A latch 506 is slidably inserted on the surface of the U-shaped frame 501, and two circular grooves 507 are provided on the surface of the rectangular plate 502, and the size of the latch 506 matches the size of the circular groove 507. A groove 508 is provided on one side of the pressing plate 505 close to the rectangular plate 502, and a plurality of rotating wheels 509 are rotatably connected to the inner wall of the groove 508. When the rectangular plate 502 moves, it will slide along the surface of the rotating wheel 509, and the rotating wheel 509 can reduce the friction force when the rectangular plate 502 slides on the surface of the pressing plate 505, thereby facilitating the pulling of the driving plate 503 to move. The arc surface of the latch 506 is covered with a spring 510, and the two ends of the spring 510 are fixedly connected to the latch 506 and the U-shaped frame 501 respectively. The latch 506 will be reset with the help of the contraction force of the spring 510. The spring 510 reaches the position to limit the latch 506, thereby preventing the latch 506 from being lost due to shaking.
[0035] Working principle: when the heavy-duty bearing body 3 of the wind turbine needs to be immersed and lubricated, first put the heavy-duty bearing body 3 of the wind turbine into a suitable position, and then rotate the turntable 410. The rotation of the turntable 410 will drive the threaded rod 406. The rotation of the threaded rod 406 will drive the bracket 407 with the help of the thread. The bracket 407 moves and slides along the surface of the round rod 409. The round rod 409 limits the moving path of the bracket 407, thereby preventing the bracket 407 from rotating when moving. When the bracket 407 moves, it will drive the limit plate 408 to move. The limit plate 408 moves and moves toward the inner wall of the heavy-duty bearing body 3 of the wind turbine. When the limit plate 408 moves, it will move toward the inner wall of the heavy-duty bearing body 3 of the wind turbine. After the plate 408 moves to a suitable position, the limit plate 408 will drive the anti-slip pad 411 to squeeze the inner wall of the heavy-loaded bearing body 3 of the wind turbine set, thereby limiting the heavy-loaded bearing body 3 of the wind turbine set, and then drive the servo motor 402, the servo motor 402 will drive the screw rod 403 to rotate, the rotation of the screw rod 403 will drive the driving arm 404 to move with the help of the thread, and then drive the heavy-loaded bearing body 3 of the wind turbine set to move in the direction close to the oil box 2, when the heavy-loaded bearing body 3 of the wind turbine set moves to a suitable position, the heavy-loaded bearing body 3 of the wind turbine set will be immersed in the lubricating oil in the oil box 2, thereby immersing the heavy-loaded bearing body 3 of the wind turbine set in the lubricating oil.
[0036] When the heavy-duty bearing body 3 of the wind turbine is immersed, first pull the latch 506. The latch 506 moves in the U-shaped frame 501 and gradually comes out of the circular groove 507. The latch 506 stretches the spring 510 when it moves. After the latch 506 comes out of the circular groove 507, it pushes the rectangular plate 502. The rectangular plate 502 moves in the U-shaped frame 501. When the rectangular plate 502 moves to a suitable position, release the latch 506. The latch 506 is reset with the help of the contraction force of the spring 510. The spring 510 reaches the position to limit the latch 506, thereby preventing the latch 506 from being lost due to shaking. Then rotate the drive rod 504. The rotation of the drive rod 504 will move in the oil box 2 with the help of the thread. The movement of the drive rod 504 will drive the pressure plate 505 to move. The pressure plate 505 moves during the movement. During the process, the driving plate 503 will be squeezed, and the rotating wheel 509 on the surface of the pressure plate 505 will fit against the surface of the driving plate 503. The driving plate 503 will move towards the direction close to the heavy-loaded bearing body 3 of the wind turbine with the help of the squeezing force of the pressure plate 505. When the driving plate 503 is tightly fitted against the surface of the heavy-loaded bearing body 3 of the wind turbine, the rectangular plate 502 is repeatedly pulled and pushed, and the rectangular plate 502 will drive the driving plate 503 to slide back and forth along the surface of the heavy-loaded bearing body 3 of the wind turbine. The heavy-loaded bearing body 3 of the wind turbine will rotate with the help of the moving force of the driving plate 503, thereby ensuring that the bearing can be fully lubricated. The rectangular plate 502 will slide along the surface of the rotating wheel 509 when moving, and the rotating wheel 509 can reduce the friction force of the rectangular plate 502 when sliding on the surface of the pressure plate 505, thereby facilitating the pulling of the driving plate 503 to move.
[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.
Claims
1. A heavy-duty bearing lubrication device for a wind turbine generator system, comprising a base plate (1) and a heavy-duty bearing body (3) of the wind turbine generator system, wherein an oil box (2) is fixedly connected to the surface of the base plate (1), and a limiting structure (4) is provided on the surface of the base plate (1), characterized in that: The limiting structure (4) comprises a support arm (401), wherein the support arm (401) is fixedly connected to the surface of the base plate (1), the surface of the support arm (401) is fixedly connected to a servo motor (402), the output end of the servo motor (402) is fixedly connected to a lead screw (403), one end of the lead screw (403) away from the servo motor (402) is rotatably connected to the surface of the base plate (1), the surface of the lead screw (403) is threadedly connected to a driving arm (404), the surface of the driving arm (404) is fixedly connected to an extension plate (405), both sides of the extension plate (405) are rotatably connected to threaded rods (406), the surface of the threaded rod (406) is threadedly connected to a bracket (407), and the surface of the bracket (407) is fixedly connected to a limiting plate (408).
2. A heavy-duty bearing lubrication device for a wind turbine according to claim 1, characterized in that: A round rod (409) is slidably penetrated through the surface of the bracket (407), and the round rod (409) is fixedly connected to the surface of the extension plate (405).
3. A heavy-duty bearing lubrication device for a wind turbine according to claim 1, characterized in that: One end of the threaded rod (406) away from the extension plate (405) is fixedly connected to a rotating disk (410), and the vertical section of the rotating disk (410) is in the shape of a cross.
4. A heavy-duty bearing lubrication device for a wind turbine according to claim 1, characterized in that: A plurality of anti-skid pads (411) are fixedly connected to one side of the limiting plate (408) away from the bracket (407), and the anti-skid pads (411) are made of rubber.
5. The heavy-duty bearing lubrication device for a wind turbine according to claim 1, characterized in that: The surface of the oil box (2) is provided with an auxiliary structure (5), and the auxiliary structure (5) comprises two U-shaped frames (501), and the two U-shaped frames (501) are fixedly connected to the surface of the oil box (2); the inner walls of the two U-shaped frames (501) are slidably connected with a rectangular plate (502), and one side of the rectangular plate (502) is fixedly connected with a driving plate (503); a driving rod (504) is threadedly penetrated through the surface of the oil box (2), and one end of the driving rod (504) close to the rectangular plate (502) is rotatably connected with a pressing plate (505); a latch (506) is slidably inserted into the surface of the U-shaped frame (501), and two circular grooves (507) are provided on the surface of the rectangular plate (502); the size of the latch (506) is matched with the size of the circular groove (507).
6. A heavy-duty bearing lubrication device for a wind turbine according to claim 5, characterized in that: A groove (508) is provided on one side of the pressing plate (505) close to the rectangular plate (502), and a plurality of rotating wheels (509) are rotatably connected to the inner wall of the groove (508).
7. A heavy-duty bearing lubrication device for a wind turbine according to claim 5, characterized in that: The arc surface of the latch (506) is sleeved with a spring (510), and the two ends of the spring (510) are respectively fixedly connected to the latch (506) and the U-shaped frame (501).