Fan main shaft lubricating device

Abstract

The utility model discloses a fan main shaft lubricating device which is connected with a fan main shaft, the fan main shaft lubricating device comprises a bearing mounting seat, an oil tank, a main shaft bearing, an alarm and a moving assembly, and the bearing mounting seat is provided with a first seat surface and a second seat surface which are oppositely arranged in the thickness direction of the bearing mounting seat; the oil tank is arranged on one side of the first seat surface; a first through hole is formed in one side of the oil tank; the main shaft bearing is arranged between the bearing mounting seat and the oil tank; an oil inlet hole communicated with the first through hole is formed in one side of the main shaft bearing; the alarm is arranged on the side, away from the spindle bearing, of the oil tank. An alarm button is arranged on the side, away from the oil tank, of the alarm. The moving assembly penetrates through the side, away from the spindle bearing, of the oil tank and extrudes the alarm button in response to the liquid level height of lubricating oil in the oil tank. The alarm gives an alarm to prompt a worker to fill lubricating oil into the oil tank, and it is guaranteed that the situation that lubricating oil is added too early or too late, and consequently a spindle bearing is damaged is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of wind power equipment, and in particular to a wind turbine main shaft lubrication device. Background Art

[0002] The main shaft of a wind turbine is a key core component in the nacelle of a wind turbine. It is used to connect the impeller hub and the gearbox and undertakes transmission and force-bearing functions. When the main shaft of the wind turbine is in continuous operation, the main shaft bearings connected to it will have varying degrees of wear and tear. Manual lubrication oil needs to be added regularly to prevent abnormal bearing temperature or abnormal noise caused by poor lubrication of the main shaft bearings.

[0003] During periods of strong wind, the fan main shaft rotates a greater number of times and the lubricating oil is consumed faster. During periods of weak wind, the fan main shaft rotates a smaller number of times and the lubricating oil is consumed slower. That is, the lubricating oil consumption is different within a certain period of time. The method of manually adding lubricating oil on a regular basis has great limitations and is prone to adding too early or too late, causing damage to the bearings. Utility Model Content

[0004] The main purpose of the present application is to provide a fan main shaft lubrication device, which aims to solve the problem that the method of manually adding lubricating oil regularly has great limitations and is prone to adding too early or too late, causing bearing damage.

[0005] To achieve the above-mentioned purpose, the present application provides a fan main shaft lubrication device, which is connected to the fan main shaft, and the fan main shaft lubrication device includes a bearing mounting seat, an oil tank, a main shaft bearing, an alarm and a moving assembly, wherein the bearing mounting seat has a first seat surface and a second seat surface arranged opposite to each other in the thickness direction thereof; the oil tank is arranged on the side of the first seat surface away from the second seat surface, and a first through hole is arranged on the side of the oil tank facing the bearing mounting seat; the main shaft bearing is arranged between the bearing mounting seat and the oil tank, and an oil inlet hole connected to the first through hole is arranged on the side of the main shaft bearing facing the oil tank, wherein the fan main shaft is penetrated through the inner circumference of the main shaft bearing; the alarm is arranged on the side of the oil tank away from the main shaft bearing, and an alarm button is arranged on the side of the alarm away from the oil tank, wherein the alarm is configured to alarm when the alarm button is in a pressed state; the moving assembly passes through the side of the oil tank away from the main shaft bearing, the moving assembly has the freedom to move along the thickness direction of the bearing mounting seat, and the moving assembly squeezes the alarm button in response to the liquid level of the lubricating oil in the oil tank.

[0006] Optionally, the moving component includes a floating plate, a moving plate and an extrusion plate, wherein the floating plate is arranged in the oil tank; the moving plate is fixed to the side of the floating plate away from the main shaft bearing, the moving plate passes through the oil tank and is slidably connected to the oil tank, and the moving plate has the freedom to move along the thickness direction of the bearing mounting seat; the extrusion plate is arranged on the side of the alarm button away from the oil tank and is fixed to the moving plate.

[0007] Optionally, a second through hole corresponding to the first through hole is provided on the floating plate, and when the side of the floating plate facing the main shaft bearing contacts the oil tank, the first through hole is connected with the second through hole and the first through hole is in an open state.

[0008] Optionally, an oil outlet is provided on the side of the main shaft bearing facing the bearing mounting seat; the fan main shaft lubrication device also includes a delivery pipe, an auger shaft, a transmission part and a drive part, wherein the delivery pipe is fixed to the side of the first seat surface away from the second seat surface and extends along the thickness direction of the bearing mounting seat, the end of the delivery pipe away from the bearing mounting seat is connected to the oil tank, and the end of the delivery pipe close to the bearing mounting seat is connected to the oil outlet; the auger shaft passes through the end of the delivery pipe away from the bearing mounting seat and is rotatably connected to the delivery pipe, and the auger shaft has the freedom to rotate around its own axial direction; the transmission part is provided at the end of the delivery pipe away from the bearing mounting seat and is connected to the auger shaft, and the transmission part drives the auger shaft to rotate around its own axial direction in response to the driving force; the drive part connects the transmission part with the fan main shaft, and the drive part provides driving force for the transmission part.

[0009] Optionally, the transmission part includes a worm wheel and a worm, wherein the worm wheel is sleeved on the outer periphery of the auger shaft; the worm is arranged on one side of the oil tank and its axial direction is the same as the axial direction of the fan main shaft, and the worm has the freedom to rotate around its own axial direction and is meshed with the worm wheel; wherein the worm is connected to the driving part and rotates around its own axial direction in response to the driving force.

[0010] Optionally, the transmission part also includes a mounting plate and two support plates, wherein the mounting plate is arranged on the side of the worm away from the worm wheel and is fixed to the oil tank; the two support plates are arranged relatively to the side of the mounting plate facing the worm in the axial direction of the worm, and the worm is rotatably connected between the two support plates; wherein the end of the worm away from the oil tank passes through the corresponding support plate and is connected to the driving part.

[0011] Optionally, the driving unit includes a driving pulley and a driven pulley, wherein the driving pulley is sleeved on the outer periphery of the fan main shaft; the driven pulley is sleeved on the outer periphery of the worm and is connected to the driving pulley through a belt.

[0012] Optionally, the fan main shaft lubrication device also includes a support seat and two support rods, wherein the support seat is arranged on the side of the first seat surface away from the second seat surface, and the side of the support seat away from the bearing mounting seat has an arc surface depression, wherein the main shaft bearing and the arc surface depression are fixed on the support seat; the two support rods are fixed between the support seat and the oil tank.

[0013] Optionally, a filling port is provided on the side of the oil tank away from the main shaft bearing, and the fan main shaft lubrication device also includes an escalator, which is fixed to the side of the support rod away from the main shaft bearing; wherein the filling port is located in the area of ​​the oil tank close to the escalator.

[0014] Optionally, a flow channel is provided in the support seat, one end of the flow channel is connected to the oil outlet hole, and the other end of the flow channel is connected to the delivery pipe.

[0015] A fan main shaft lubrication device proposed in an embodiment of the present application, wherein the main shaft bearings are always filled with lubricating oil. When the fan main shaft rotates, the lubricating oil in the oil tank is continuously consumed, and the liquid level of the lubricating oil in the oil tank continues to decrease. When the liquid level drops to a certain height, the moving component squeezes the alarm button, and the alarm sounds to prompt the staff to add lubricating oil to the oil tank, ensuring that the lubricating oil is not added too early or too late, which may cause damage to the main shaft bearings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the overall structure of a fan main shaft lubrication device provided in an embodiment of the present application;

[0017] Figure 2 for Figure 1 A structural schematic diagram of another perspective of the embodiment;

[0018] Figure 3 A side view of a fan main shaft lubrication device provided in an embodiment of the present application;

[0019] Figure 4 This is a cross-sectional view of the oil tank according to an embodiment of the present application.

[0020] In the figure: A. fan main shaft; 1. bearing mounting seat; 11. support seat; 12. support rod; 2. oil tank; 21. filling port; 3. main shaft bearing; 4. moving assembly; 41. floating plate; 42. moving plate; 43. extrusion plate; 5. conveying pipe; 6. auger shaft; 7. transmission part; 71. worm gear; 72. worm; 73. mounting plate; 74. support plate; 8. driving part; 81. driving pulley; 82. driven pulley; 9. alarm.

[0021] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0026] refer to Figure 1 to Figure 4 The embodiment of the present application provides a fan main shaft lubrication device, which is connected to the fan main shaft A. The fan main shaft lubrication device may include a bearing mounting seat 1, an oil tank 2, a main shaft bearing 3, an alarm 9 and a moving component 4, wherein the bearing mounting seat 1 has a first seat surface and a second seat surface that are arranged opposite to each other in the thickness direction thereof; the oil tank 2 is arranged on a side of the first seat surface that is away from the second seat surface, and a first through hole is arranged on a side of the oil tank 2 that faces the bearing mounting seat 1; the main shaft bearing 3 is arranged between the bearing mounting seat 1 and the oil tank 2, and the main shaft bearing 3 faces one side of the oil tank 2. An oil inlet hole connected to the first through hole is arranged on the side of the oil tank 2, wherein the fan main shaft A is passed through the inner circumference of the main shaft bearing 3; the alarm 9 is arranged on the side of the oil tank 2 away from the main shaft bearing 3, and an alarm button is arranged on the side of the alarm 9 away from the oil tank 2, wherein the alarm 9 is configured to alarm when the alarm button is in a pressed state; the moving component 4 passes through the side of the oil tank 2 away from the main shaft bearing 3, and the moving component 4 has the freedom to move along the thickness direction of the bearing mounting seat 1, and the moving component 4 squeezes the alarm button in response to the liquid level of the lubricating oil in the oil tank 2.

[0027] A fan main shaft lubrication device is proposed in the embodiment of the present application, in which the main shaft bearing 3 is always filled with lubricating oil. When the fan main shaft A rotates, the lubricating oil in the oil tank 2 is continuously consumed, and the liquid level of the lubricating oil in the oil tank 2 is continuously decreasing. When the liquid level drops to a certain height, the moving component 4 squeezes the alarm button, and the alarm 9 sounds an alarm to remind the staff to add lubricating oil to the oil tank 2, to ensure that the lubricating oil is not added too early or too late, which may cause damage to the main shaft bearing 3.

[0028] Specifically, when the alarm button of the alarm device 9 is in a pressed state, the alarm device 9 can send an alarm signal to the host, and the host responds after receiving the alarm signal to prompt the staff to add lubricating oil into the oil tank 2.

[0029] It should be understood that after the lubrication device is installed in the nacelle of the wind turbine, the thickness direction of the bearing mounting seat 1 should be the same as the gravity direction, and the first seat surface is located above the second seat surface.

[0030] refer to Figure 4 In an exemplary embodiment, the moving assembly 4 may include a floating plate 41, a moving plate 42 and a squeezing plate 43, wherein the floating plate 41 is arranged in the oil tank 2; the moving plate 42 is fixed to the side of the floating plate 41 away from the main shaft bearing 3, the moving plate 42 penetrates the oil tank 2 and is slidably connected to the oil tank 2, and the moving plate 42 has the freedom to move along the thickness direction of the bearing mounting seat 1; the squeezing plate 43 is arranged on the side of the alarm button away from the oil tank 2 and is fixed to the moving plate 42.

[0031] Specifically, the floating plate 41 floats above the lubricating oil. When the lubricating oil level in the oil tank 2 drops, the floating plate 41 drops accordingly. At this time, the moving plate 42 drops synchronously along the thickness direction of the bearing mounting seat 1, and the moving plate 42 drives the extrusion plate 43 to drop synchronously. The extrusion plate 43 is arranged on the side of the alarm button away from the oil tank 2, that is, the alarm button is located on the descending route of the extrusion plate 43. When the extrusion plate 43 drops to a certain distance, the extrusion plate 43 will collide with the alarm button before. At this time, the lubricating oil level continues to drop, and the alarm button is changed to a pressed state due to the gravity of the moving component 4, and the alarm 9 sounds an alarm; when the lubricating oil is added to the oil tank 2, the lubricating oil level rises, driving the moving component 4 to rise, the extrusion plate 43 is separated from the alarm button, the alarm button returns to normal, and the alarm 9 stops the alarm.

[0032] refer to Figure 4 In an exemplary embodiment, a second through hole corresponding to the first through hole is provided on the floating plate 41. When the side of the floating plate 41 facing the main shaft bearing 3 contacts the oil tank 2, the first through hole is connected with the second through hole and the first through hole is in an open state.

[0033] Specifically, if the side of the floating plate 41 facing the main shaft bearing 3 contacts the oil tank 2, that is, the lubricating oil in the oil tank 2 is consumed, the first through hole is connected to the second through hole, and the first through hole is in an open state. At this time, lubricating oil is added to the oil tank 2. The lubricating oil can enter the main shaft bearing 3 through the second through hole and the first through hole, preventing the floating plate 41 from blocking the first through hole, making it difficult for the lubricating oil to enter the main shaft bearing 3.

[0034] Optionally, a plurality of protrusions may be arranged at intervals on one side of the oil tank 2 near the main shaft bearing 3. Then, when the side of the floating plate 41 facing the main shaft bearing 3 collides with the oil tank 2, due to the presence of the protrusions, there is a gap between the side of the floating plate 41 facing the main shaft bearing 3 and the oil tank 2, thereby preventing the floating plate 41 from blocking the first through hole. At the same time, when adding lubricating oil, it is prevented that the side of the floating plate 41 facing the main shaft bearing 3 is too close to the oil tank 2, which makes it difficult for the floating plate 41 to float above the lubricating oil due to atmospheric pressure.

[0035] refer to Figure 1 and Figure 2 In an exemplary embodiment, an oil outlet is provided on the side of the main shaft bearing 3 facing the bearing mounting seat 1; the fan main shaft lubrication device may also include a delivery pipe 5, an auger shaft 6, a transmission part 7 and a drive part 8, wherein the delivery pipe 5 is fixed to the side of the first seat surface away from the second seat surface and extends along the thickness direction of the bearing mounting seat 1, the end of the delivery pipe 5 away from the bearing mounting seat 1 is connected with the oil tank 2, and the end of the delivery pipe 5 close to the bearing mounting seat 1 is connected with the oil outlet; the auger shaft 6 passes through the end of the delivery pipe 5 away from the bearing mounting seat 1 and is rotatably connected to the delivery pipe 5, and the auger shaft 6 has the freedom to rotate around its own axial direction; the transmission part 7 is arranged at the end of the delivery pipe 5 away from the bearing mounting seat 1 and is connected to the auger shaft 6, and the transmission part 7 drives the auger shaft 6 to rotate around its own axial direction in response to the driving force; the drive part 8 connects the transmission part 7 with the fan main shaft A, and the drive part 8 provides driving force for the transmission part 7.

[0036] Specifically, a passage is formed within the oil tank 2, the main shaft bearing 3 and the delivery pipe 5, the driving unit 8 provides driving force for the transmission unit 7, and the transmission unit 7 drives the auger shaft 6 to rotate around its own axis in response to the driving force. When the auger shaft 6 rotates, it drives the lubricating oil in the delivery pipe 5 to move from one end close to the bearing mounting seat 1 to the end away from the bearing mounting seat 1.

[0037] Furthermore, the lubricating oil flows from the first through hole of the oil tank 2 into the oil inlet hole of the main shaft bearing 3, and then flows from the oil outlet hole of the main shaft bearing 3 to the delivery pipe 5. The rotation of the auger shaft 6 drives the lubricating oil to flow in the delivery pipe 5, and the lubricating oil finally flows back into the oil tank 2. In this way, the lubricating oil is in a flowing state and can take away part of the heat generated by the main shaft bearing 3 during operation, thereby increasing the service life of the main shaft bearing 3.

[0038] refer to Figure 1 and Figure 2In an exemplary embodiment, the transmission part 7 may include a worm wheel 71 and a worm 72, wherein the worm wheel 71 is sleeved on the outer periphery of the auger shaft 6; the worm 72 is arranged on one side of the oil tank 2 and its axial direction is the same as the axial direction of the fan main shaft A, and the worm 72 has the freedom to rotate around its own axial direction and is meshed with the worm wheel 71; wherein the worm 72 is connected to the driving part 8 and rotates around its own axial direction in response to the driving force; the driving part 8 may include a driving pulley 81 and a driven pulley 82, wherein the driving pulley 81 is sleeved on the outer periphery of the fan main shaft A; the driven pulley 82 is sleeved on the outer periphery of the worm 72 and is connected to the driving pulley 81 through a belt.

[0039] Specifically, when the fan main shaft A rotates, it drives the driving pulley 81 to rotate synchronously. The driving pulley 81 is connected to the driven pulley 82 by a belt. When the driving pulley 81 rotates, it drives the driven pulley 82 to rotate. The driven pulley 82 is sleeved on the outer periphery of the worm 72. When the driven pulley 82 rotates, it drives the worm 72 to rotate around its own axial direction. The worm 72 is meshed with the worm wheel 71. When the worm 72 rotates, it can drive the worm wheel 71 to rotate around the axial direction of the worm wheel 71. The worm wheel 71 further drives the auger shaft 6 to rotate around its own axial direction, thereby realizing the movement of lubricating oil in the delivery pipe 5.

[0040] It should be understood that the force that drives the worm 72 to rotate around its own axis when the driven pulley 82 rotates is the driving force.

[0041] refer to Figure 1 and Figure 2 In an exemplary embodiment, the transmission part 7 may further include a mounting plate 73 and two support plates 74, wherein the mounting plate 73 is arranged on the side of the worm 72 away from the worm wheel 71 and is fixed to the oil tank 2; the two support plates 74 are relatively arranged on the side of the mounting plate 73 facing the worm 72 in the axial direction of the worm 72, and the worm 72 is rotatably connected between the two support plates 74; wherein the end of the worm 72 away from the oil tank 2 passes through the corresponding support plate 74 and is connected to the driving part 8.

[0042] Specifically, the worm 72 is rotatably connected between two support plates 74 , and the two support plates 74 respectively support two ends of the worm 72 , so that the worm 72 is more stable when rotating.

[0043] Furthermore, the driven pulley 82 is located at one end of the worm 72 away from the oil tank 2, that is, the two support plates 74 are located between the driven pulley 82 and the oil tank 2, ensuring that the support plate 74 or the mounting plate 73 does not affect the transmission of the driving pulley 81 and the driven pulley 82.

[0044] In an exemplary embodiment, a filling port 21 is provided on the side of the oil tank 2 facing away from the main shaft bearing 3, and the fan main shaft lubrication device may also include an escalator, which is fixed to the side of the support rod 12 facing away from the main shaft bearing 3; wherein the filling port 21 is located in an area on the oil tank 2 close to the escalator.

[0045] Specifically, when filling the lubricating oil, the staff can climb up the escalator and pour the lubricating oil into the filling port 21. When the filling port 21 is located in an area on the oil tank 2 close to the escalator, filling the lubricating oil is more convenient.

[0046] Furthermore, a scale label can be set on the side of the movable plate 42 facing the filling port 21, so that when filling lubricating oil, the operator can know the amount of lubricating oil in the mailbox by observing the scale label on the movable plate 42, thereby preventing excessive filling of lubricating oil, causing lubricating oil overflow and waste.

[0047] In an exemplary embodiment, the fan main shaft lubrication device may further include a support seat 11 and two support rods 12, wherein the support seat 11 is arranged on the side of the first seat surface away from the second seat surface, and the side of the support seat 11 away from the bearing mounting seat 1 has an arc surface depression, wherein the main shaft bearing 3 is fixed on the support seat 11 in cooperation with the arc surface depression; the two support rods 12 are fixed between the support seat 11 and the oil tank 2; a flow channel is arranged in the support seat 11, one end of the flow channel is connected to the oil outlet hole, and the other end of the flow channel is connected to the delivery pipe 5.

[0048] It should be understood that the structure of the support seat 11, the support rod 12, the main shaft bearing 3 and the oil tank 2 is compact and occupies less space inside the wind turbine cabin.

[0049] Specifically, after flowing out from the oil outlet hole of the main shaft bearing 3 , the lubricating oil first flows into the flow channel on the support seat 11 , and then flows into the interior of the delivery pipe 5 from the flow channel.

[0050] The above are only preferred embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A fan main shaft lubrication device, characterized in that: Connected to the fan main shaft (A), the fan main shaft lubrication device comprises: A bearing mounting seat (1) having a first seat surface and a second seat surface which are arranged opposite to each other in the thickness direction of the bearing mounting seat; An oil tank (2) is arranged on a side of the first seat surface facing away from the second seat surface, and a first through hole is arranged on a side of the oil tank (2) facing the bearing mounting seat (1); A main shaft bearing (3) is arranged between the bearing mounting seat (1) and the oil tank (2), and an oil inlet hole communicating with the first through hole is arranged on a side of the main shaft bearing (3) facing the oil tank (2), wherein the fan main shaft (A) is arranged through the inner periphery of the main shaft bearing (3); An alarm (9) is arranged on a side of the oil tank (2) facing away from the main shaft bearing (3), and an alarm button is arranged on the side of the alarm (9) facing away from the oil tank (2), wherein the alarm (9) is configured to sound an alarm when the alarm button is in a pressed state; A movable component (4) passes through a side of the oil tank (2) away from the main shaft bearing (3), and the movable component (4) has the freedom to move along the thickness direction of the bearing mounting seat (1). The movable component (4) squeezes the alarm button in response to the liquid level of the lubricating oil in the oil tank (2).

2. The fan main shaft lubrication device according to claim 1, characterized in that: The moving component (4) comprises: A floating plate (41) is arranged in the oil tank (2); A movable plate (42) is fixed to a side of the floating plate (41) away from the main shaft bearing (3), the movable plate (42) penetrates the oil tank (2) and is slidably connected to the oil tank (2), and the movable plate (42) has the freedom to move along the thickness direction of the bearing mounting seat (1); A squeezing plate (43) is arranged on a side of the alarm button away from the oil tank (2) and is fixed to the moving plate (42).

3. The fan main shaft lubrication device according to claim 2, characterized in that: The floating plate (41) is provided with a second through hole corresponding to the first through hole. When the side of the floating plate (41) facing the main shaft bearing (3) contacts the oil tank (2), the first through hole is connected to the second through hole and the first through hole is in an open state.

4. The fan main shaft lubrication device according to claim 1, characterized in that: An oil outlet hole is provided on a side of the main shaft bearing (3) facing the bearing mounting seat (1); the fan main shaft lubrication device further comprises: A delivery pipe (5) is fixed to a side of the first seat surface away from the second seat surface and extends along the thickness direction of the bearing mounting seat (1); an end of the delivery pipe (5) away from the bearing mounting seat (1) is connected to the oil tank (2); and an end of the delivery pipe (5) close to the bearing mounting seat (1) is connected to the oil outlet hole; An auger shaft (6) passes through one end of the delivery pipe (5) away from the bearing mounting seat (1) and is rotatably connected to the delivery pipe (5), and the auger shaft (6) has the freedom to rotate around its own axial direction; A transmission part (7) is arranged at one end of the conveying pipe (5) away from the bearing mounting seat (1) and connected to the auger shaft (6), and the transmission part (7) drives the auger shaft (6) to rotate around its own axis in response to a driving force; A driving part (8) is connected to the transmission part (7) and the fan main shaft (A), and the driving part (8) provides the driving force for the transmission part (7).

5. The fan main shaft lubrication device according to claim 4, characterized in that: The transmission part (7) comprises: A worm wheel (71) sleeved on the outer periphery of the auger shaft (6); A worm (72) is arranged on one side of the oil tank (2) and has an axial direction which is the same as that of the fan main shaft (A); the worm (72) has the freedom to rotate around its own axial direction and is meshed with the worm wheel (71); The worm (72) is connected to the driving portion (8) and rotates around its own axis in response to the driving force.

6. The fan main shaft lubrication device according to claim 5, characterized in that: The transmission part (7) further comprises: A mounting plate (73) is arranged on a side of the worm (72) away from the worm wheel (71) and is fixed to the oil tank (2); Two support plates (74) are arranged opposite to each other on a side of the mounting plate (73) facing the worm (72) in the axial direction of the worm (72), and the worm (72) is rotatably connected between the two support plates (74); Wherein, one end of the worm (72) away from the oil tank (2) passes through the corresponding support plate (74) and is connected to the driving part (8).

7. The fan main shaft lubrication device according to claim 6, characterized in that: The driving unit (8) comprises: A driving pulley (81) sleeved on the outer circumference of the fan main shaft (A); The driven pulley (82) is sleeved on the outer periphery of the worm (72) and is connected to the driving pulley (81) via a belt.

8. The fan main shaft lubrication device according to claim 4, characterized in that: The fan main shaft lubrication device also includes: A support seat (11) is arranged on a side of the first seat surface facing away from the second seat surface, and a side of the support seat (11) facing away from the bearing mounting seat (1) has an arcuate recess, wherein the spindle bearing (3) cooperates with the arcuate recess and is fixed on the support seat (11); Two support rods (12) are fixed between the support seat (11) and the oil tank (2).

9. The fan main shaft lubrication device according to claim 8, characterized in that: A filling port (21) is provided on a side of the oil tank (2) facing away from the main shaft bearing (3), and the fan main shaft lubrication device further comprises: An escalator, fixed to a side of the support rod (12) facing away from the main shaft bearing (3); The filling port (21) is located on the oil tank (2) in an area close to the escalator.

10. The fan main shaft lubrication device according to claim 8, characterized in that: A flow channel is provided in the support seat (11), one end of the flow channel is connected to the oil outlet hole, and the other end of the flow channel is connected to the delivery pipe (5).

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