Bearing lubricating structure of wind power gear pump

Abstract

The utility model belongs to the field of wind power gear pump, specifically disclose a bearing lubricating structure of wind power gear pump for solving the bearing lubricating structure of prior art device, it usually utilizes lubricating medium to carry out lubricating operation to bearing directly, easily make the impurity in lubricating medium enter into the bearing and affect the service life of bearing problem, specifically including the pump body of clamping between two sets of cover plates, two sets of cover plates are connected with driving shaft rod and driven shaft rod and pass through, driving shaft rod and driven shaft rod respectively clamping fixed sleeve joint have driving gear and driven gear, driving shaft rod and driven shaft rod all sleeve joint have two sets of bearing ring, the inner wall of cover plate is provided with two sets of bearing groove, the inboard side sealing ring of bearing groove is connected with, the side of cover plate is connected with two sets of liquid inlet pipe and passes through, can in the circulation self -lubricating of bearing is avoided lubricating medium in the impurity introduction to the bearing place and causes bearing to be damaged, has good safe lubrication function.

Description

Technical Field

[0001] This utility model relates to the field of wind power gear pumps, and in particular to a bearing lubrication structure for wind power gear pumps. Background Technology

[0002] Wind turbine gear pumps are positive displacement pumps specifically designed for use in the hydraulic systems of wind turbine generators, serving as a core power component. The bearing lubrication structure of a wind turbine gear pump is a precision system integrated into the pump body, specifically designed to handle the extreme operating conditions of wind turbine generators. Its core function is to ensure that the two core bearings supporting the gear shaft receive a continuous, stable, clean, and adequate amount of lubricating medium under any operating condition. This minimizes friction and wear, effectively dissipates frictional heat and impurities, thereby guaranteeing the gear pump's high reliability and long service life within the wind turbine's design life of up to 20 years. In the existing technology, wind turbine gear pumps usually require a bearing lubrication structure during use. According to the content of Chinese utility model patent with patent publication number CN219865466U, the bearing lubrication structure of this device usually uses a lubricating medium to directly lubricate the bearing. This can easily allow impurities in the lubricating medium to enter the bearing and affect its service life, which urgently needs to be improved.

[0003] To address the aforementioned technical deficiencies, a solution is proposed that can prevent impurities in the lubricating medium from being introduced into the bearing and causing damage while performing circulating self-lubrication, thus providing excellent safe lubrication. Utility Model Content

[0004] The purpose of this invention is to provide a bearing lubrication structure for a wind turbine gear pump to solve the aforementioned problems.

[0005] The objective of this utility model can be achieved through the following technical solution: a bearing lubrication structure for a wind turbine gear pump, comprising a pump body fitted between two sets of cover plates, a drive shaft and a driven shaft being connected through the two sets of cover plates, a drive gear and a driven gear being respectively fitted onto the drive shaft and the driven shaft, two sets of bearing rings being fitted onto each of the drive shaft and the driven shaft, and two sets of bearing grooves being formed on the inner wall of the cover plates, with a sealing ring sealingly connected to the inner side of the bearing groove; Two sets of liquid inlet pipes are connected through one side of the cover plate, and a filter tank is fixedly connected between the two sets of liquid inlet pipes. Liquid guide pipes are fixedly connected to both sides of the filter tank. A liquid outlet pipe is connected through the other side of the cover plate. A liquid collection pipe is fixedly connected to one end of the liquid outlet pipe, and a return pipe is fixedly connected to both ends of the liquid collection pipe.

[0006] Preferably, a sealing plate is installed on the filter tank, and two sets of filter screens are symmetrically snapped onto the sealing plate. Corner plates are fixedly connected to the corners of the sealing plate.

[0007] Preferably, the corner plate has an L-shaped cross-section, the corner plate matches the corner of the filter tank, and the filter screen matches the filter tank.

[0008] Preferably, a fixed column is fixedly connected to the middle of both sides of the filter tank, a rotating rod is movably connected to the fixed column, and a rotating baffle is fixedly connected to the end of the rotating rod.

[0009] Preferably, a magnetic block is fixedly connected to the rotating baffle, and the two sets of magnetic blocks attract each other.

[0010] Preferably, the driving gear meshes with the driven gear, the bearing ring is located inside the bearing groove, and the sealing ring is located on one side of the bearing ring.

[0011] Preferably, the inlet pipe is L-shaped, and one end of the guide pipe is in contact with the bearing ring.

[0012] Preferably, one end of the reflux pipe is in contact with the bearing ring, and the outlet pipe is L-shaped.

[0013] The beneficial effects of this utility model are: The lubricating medium at the inlet is introduced to the outlet through the meshing of the drive shaft and driven shaft with the drive gear and driven gear. Then, part of the lubricating medium is introduced into the filter tank through the inlet pipe. After being filtered by the filter screen, the lubricating medium is introduced into the bearing ring through the guide pipe. Then, the lubricating medium at the bearing ring is introduced into the collection pipe through the return pipe until the lubricating medium is discharged to the inlet through the outlet pipe. This can circulate and self-lubricate the bearing while avoiding impurities in the lubricating medium from being introduced into the bearing and causing bearing damage. It has a very good safe lubrication function. The rotating rod causes the rotating baffle to rotate relative to the fixed groove column until both sets of rotating baffles are away from the upper side of the sealing plate. Then, with the help of four sets of corner plates, the sealing plate is moved away from the filter tank. At this time, the filter screen can be removed from the inside of the filter tank, which allows the filter structure to be quickly disassembled for easy cleaning. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings; Figure 1 This is a three-dimensional structural view of the entire utility model; Figure 2 This is a schematic diagram of the connection structure between the pump body and the cover plate in this utility model; Figure 3 This is a schematic diagram of the connection structure between the inlet pipe and the outlet pipe in this utility model; Figure 4 This is a schematic diagram of the connection structure of the filter tank in this utility model.

[0015] Legend: 1. Pump body; 2. Cover plate; 3. Drive shaft; 4. Driven shaft; 5. Drive gear; 6. Driven gear; 7. Bearing ring; 8. Sealing ring; 9. Bearing groove; 10. Inlet pipe; 11. Filter tank; 12. Guide pipe; 13. Return pipe; 14. Collecting pipe; 15. Outlet pipe; 16. Sealing plate; 17. Filter screen; 18. Edge plate; 19. Fixed groove column; 20. Rotating rod; 21. Rotating baffle; 22. Magnetic block. Detailed Implementation

[0016] 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.

[0017] Example 1: The application background of this utility model is based on the use of wind power gear pumps, which often requires the use of bearing lubrication structures. The technical solution of this utility model is to solve the problem of the bearing lubrication structure of the existing device, which usually uses the lubricating medium to directly lubricate the bearing. This can easily cause impurities in the lubricating medium to enter the bearing and affect the service life of the bearing. Please see Figures 1-4 As shown, this embodiment is a bearing lubrication structure for a wind turbine gear pump, including a pump body 1 mounted between two sets of cover plates 2. A drive shaft 3 and a driven shaft 4 are connected through the two sets of cover plates 2. A drive gear 5 and a driven gear 6 are respectively fixedly sleeved on the drive shaft 3 and the driven shaft 4. Two sets of bearing rings 7 are sleeved on both the drive shaft 3 and the driven shaft 4. Two sets of bearing grooves 9 are opened on the inner wall of the cover plate 2. A sealing ring 8 is sealed to the inner side of the bearing groove 9. Two sets of liquid inlet pipes 10 are connected through one side of the cover plate 2. A filter tank 11 is fixedly connected between the two sets of liquid inlet pipes 10. Liquid guide pipes 12 are fixedly connected to both sides of the filter tank 11. A liquid outlet pipe 15 is connected through the other side of the cover plate 2. A liquid collection pipe 14 is fixedly connected to one end of the liquid outlet pipe 15. A return pipe 13 is fixedly connected to both ends of the liquid collection pipe 14. The driving gear 5 meshes with the driven gear 6, the bearing ring 7 is located inside the bearing groove 9, and the sealing ring 8 is located on one side of the bearing ring 7. The driving gear 5 and the driven gear 6 mesh together so that the driving shaft 3 and the driven shaft 4 can rotate together. The inlet pipe 10 is L-shaped, and one end of the guide pipe 12 is in contact with the bearing ring 7. The lubricating medium is introduced into the bearing ring 7 through the guide pipe 12. One end of the return pipe 13 is in contact with the bearing ring 7, and the outlet pipe 15 is L-shaped. The lubricating medium is discharged into the collection pipe 14 through the return pipe 13. Specifically, the lubricating medium at the inlet is introduced to the outlet through the meshing of the drive shaft 3 and driven shaft 4 with the drive gear 5 and driven gear 6. Then, part of the lubricating medium is introduced into the filter tank 11 through the liquid inlet pipe 10. After being filtered by the filter screen 17, the lubricating medium is introduced into the bearing ring 7 through the liquid guide pipe 12. Then, the lubricating medium at the bearing ring 7 is introduced into the collection pipe 14 through the return pipe 13, until the lubricating medium is discharged to the inlet through the liquid outlet pipe 15. This can circulate and self-lubricate the bearing while preventing impurities in the lubricating medium from being introduced into the bearing and causing damage, thus providing excellent safe lubrication function.

[0018] Example 2: Please refer to Figures 1-4 As shown, this embodiment is a bearing lubrication structure for a wind turbine gear pump. A sealing plate 16 is installed on the filter tank 11. Two sets of filter screens 17 are symmetrically snapped onto the sealing plate 16. Corner plates 18 are fixedly connected to the corners of the sealing plate 16. The corner plates 18 have an L-shaped cross-section and match the corners of the filter tank 11. The filter screens 17 match the filter tank 11. The sealing plate 16 is initially sealed onto the filter tank 11 by the four sets of corner plates 18. Fixed groove columns 19 are fixedly connected to the middle of both sides of the filter tank 11. Rotating rods 20 are movably connected to the fixed groove columns 19. Rotating baffles 21 are fixedly connected to the ends of the rotating rods 20. Magnetic blocks 22 are fixedly connected to the rotating baffles 21. The two sets of magnetic blocks 22 attract each other, and the position of the sealing plate 16 is restricted by the two sets of rotating baffles 21. Specifically, the rotating rod 20 causes the rotating baffle 21 to rotate relative to the fixed groove column 19 until both sets of rotating baffles 21 are far away from the upper side of the sealing plate 16. Then, with the cooperation of the four sets of corner plates 18, the sealing plate 16 is moved away from the filter tank 11. At this time, the filter screen 17 can be moved out from the inside of the filter tank 11, which allows the filter structure to be quickly disassembled for easy cleaning.

[0019] As can be seen from Embodiments 1 and 2, the lubricating medium at the inlet is introduced to the outlet through the meshing of the driving shaft 3 and driven shaft 4 with the driving gear 5 and driven gear 6. Then, part of the lubricating medium is introduced into the filter tank 11 through the inlet pipe 10. After being filtered by the filter screen 17, the lubricating medium is introduced into the bearing ring 7 through the guide pipe 12. Then, the lubricating medium at the bearing ring 7 is introduced into the collection pipe 14 through the return pipe 13, until the lubricating medium is discharged to the inlet through the outlet pipe 15. This can circulate and self-lubricate the bearing while avoiding impurities in the lubricating medium from being introduced into the bearing and causing bearing damage, thus providing a good safe lubrication function.

[0020] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A bearing lubrication structure for a wind turbine gear pump, comprising a pump body (1) fitted between two sets of cover plates (2), characterized in that: A drive shaft (3) and a driven shaft (4) are connected through the two sets of cover plates (2). A drive gear (5) and a driven gear (6) are respectively fastened to the drive shaft (3) and the driven shaft (4). Two sets of bearing rings (7) are fitted on the drive shaft (3) and the driven shaft (4). Two sets of bearing grooves (9) are opened on the inner wall of the cover plate (2). A sealing ring (8) is sealed to the inner side of the bearing groove (9). Two sets of inlet pipes (10) are connected through one side of the cover plate (2), and a filter tank (11) is fixedly connected between the two sets of inlet pipes (10). Both sides of the filter tank (11) are fixedly connected to the guide pipes (12). An outlet pipe (15) is connected through the other side of the cover plate (2). One end of the outlet pipe (15) is fixedly connected to the collection pipe (14), and both ends of the collection pipe (14) are fixedly connected to the return pipe (13).

2. The bearing lubrication structure of a wind turbine gear pump according to claim 1, characterized in that, A sealing plate (16) is installed on the filter tank (11), and two sets of filter screens (17) are symmetrically snapped onto the sealing plate (16). Corner plates (18) are fixedly connected to the corners of the sealing plate (16).

3. The bearing lubrication structure of a wind turbine gear pump according to claim 2, characterized in that, The corner plate (18) has an L-shaped cross-section and is matched with the corner of the filter tank (11). The filter screen (17) is matched with the filter tank (11).

4. The bearing lubrication structure of a wind turbine gear pump according to claim 3, characterized in that, The filter tank (11) has a fixed column (19) fixedly connected to the middle of both sides. A rotating rod (20) is movably connected to the fixed column (19). A rotating baffle (21) is fixedly connected to the end of the rotating rod (20).

5. The bearing lubrication structure of a wind turbine gear pump according to claim 4, characterized in that, A magnetic block (22) is fixedly connected to the rotating baffle (21), and the two sets of magnetic blocks (22) attract each other.

6. The bearing lubrication structure of a wind turbine gear pump according to claim 1, characterized in that, The driving gear (5) meshes with the driven gear (6), the bearing ring (7) is located inside the bearing groove (9), and the sealing ring (8) is located on one side of the bearing ring (7).

7. The bearing lubrication structure of a wind turbine gear pump according to claim 6, characterized in that, The liquid inlet pipe (10) is L-shaped, and one end of the liquid guide pipe (12) is attached to the bearing ring (7).

8. The bearing lubrication structure of a wind turbine gear pump according to claim 6, characterized in that, One end of the return pipe (13) is attached to the bearing ring (7), and the outlet pipe (15) is L-shaped.

Images