Fan motor bearing lubricating device

Abstract

The utility model relates to the technical field of fan motors, in particular to a fan motor bearing lubricating device which comprises a bearing and a support, the bearing is arranged in the support in a penetrating mode, the upper end of the support is connected with an installation shell through a bolt, a fixing box is fixedly installed in the installation shell, a driving shaft is further rotatably installed on the inner side of the installation shell, and the driving shaft is connected with the fixing box through a bolt. The driving shaft penetrates through the fixing box, a rotating disc is fixedly installed on the part, located on the inner side of the fixing box, of the driving shaft, a circulating hole is formed in the rotating disc, an oil supply mechanism is fixedly installed on the upper surface of the fixing box, and an oil storage mechanism is fixedly installed on one side of the mounting shell. The fan motor bearing lubricating device can add lubricating oil to the contact surface of the bearing and the support, can reduce the loss of the bearing, reduces the noise, and is worthy of popularization.

Description

Technical Field

[0001] The utility model relates to the technical field of fan motors, in particular to a bearing lubrication device for a fan motor. Background Technique

[0002] During the operation of a fan, the internal motor drives the fan blades to rotate through bearings, and the rotation of the fan blades generates flowing air to achieve the functions of cooling and ventilation. In order to ensure the stable rotation of the bearings, supports can be set as needed to support the bearings. However, due to long-term wear between the supports and the bearings, not only is it easy to generate noise, but also there is a large loss between the bearings and the supports, shortening the service life of the bearings. Content of the Utility Model

[0003] The purpose of the utility model is to solve the defect of large frictional loss easily generated between the bearing and the support in the prior art, and to propose a bearing lubrication device for a fan motor.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] Design a bearing lubrication device for a fan motor, including a bearing and a support. The bearing is arranged through the inside of the support. The upper end of the support is connected with an installation shell by bolts. A fixed box is fixedly installed inside the installation shell. A driving shaft is also rotatably installed on the inner side of the installation shell. The driving shaft penetrates through the fixed box, and a turntable is fixedly installed on the part of the driving shaft inside the fixed box. A circulation hole is opened inside the turntable. An oil supply mechanism is fixedly installed on the upper surface of the fixed box. An oil storage mechanism is fixedly installed on one side of the installation shell. The oil storage mechanism is fixedly connected with the oil supply mechanism. An oil injection hole is opened inside the upper end of the support. The oil injection hole is communicated with the inside of the fixed box.

[0006] Preferably, the oil supply mechanism includes a fixed sleeve. The fixed sleeve is fixedly installed on the upper surface of the fixed box, and the bottom of the fixed sleeve is communicated with the inside of the fixed box. A lead screw is fixedly installed at the upper end of the driving shaft. A linkage block is sleeved on the outer side of the lead screw in a threaded manner. One side of the linkage block is fixedly installed with a connecting rod. The end of the connecting rod movably penetrates and extends into the fixed sleeve and is fixedly installed with a pressing block. One side of the lower end of the fixed sleeve is fixedly connected with the oil storage mechanism.

[0007] Preferably, the oil injection hole coincides with the extension line of the central axis of the fixed sleeve, and the rotation trajectory of the center point of the circulation hole passes through the extension line of the central axis of the oil injection hole.

[0008] Preferably, the turntable, the driving shaft and the lead screw are coaxially arranged.

[0009] Preferably, the oil storage mechanism includes a storage box fixedly installed on one side of the installation shell. A delivery pipe is fixedly connected to the bottom of the installation shell, and the end of the delivery pipe is fixedly connected to one side of the lower end of the fixed sleeve. An oil filling nozzle is fixedly installed on the upper end of the storage box, and valve bodies are fixedly installed inside the end cover of the oil filling nozzle and inside the delivery pipe near the end of the fixed sleeve.

[0010] Preferably, the valve body is a silicone one-way valve.

[0011] Preferably, the extension line of the central axis of the oil injection hole passes through the central axis of the bearing.

[0012] For a fan motor bearing lubrication device proposed by the present utility model, the beneficial effects are as follows: During the use of this fan motor bearing lubrication device, the rotation of the driving shaft can drive the rotation of the turntable and the lead screw. The rotation of the turntable can drive the rotation of the flow holes, and the rotation of the lead screw can drive the linkage block to move up and down. The up and down movement of the linkage block can drive the pressing block to move up and down through the connecting rod. The up and down movement of the pressing block can suck the lubricating oil inside the delivery pipe into the fixed sleeve. The lubricating oil can enter the oil injection hole through the flow holes. During the rotation of the bearing, the lubricating oil can be evenly applied to the surface where the bearing contacts the support, which can reduce noise, and can also reduce the wear between the bearing and the support, and extend the service life of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of a fan motor bearing lubrication device proposed by the present utility model;

[0014] Figure 2 is Figure 1 the sectional structural diagram at A-A in

[0015] Figure 3 is Figure 1 the sectional structural diagram at B-B in

[0016] Figure 4 is a three-dimensional structural diagram of the turntable and the driving shaft in a fan motor bearing lubrication device proposed by the present utility model.

[0017] In the figure: 1, bearing; 2, support; 3, installation shell; 4, fixed box; 5, turntable; 6, flow holes; 7, fixed sleeve; 8, pressing block; 9, connecting rod; 10, linkage block; 11, driving shaft; 12, lead screw; 13, oil injection hole; 14, delivery pipe; 15, storage box; 16, oil filling nozzle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0019] Embodiment 1: Refer to Figures 1-4 , a lubricating device for a fan motor bearing, including a bearing 1 and a support 2. The bearing 1 is disposed through the inside of the support 2, and the bearing 1 is connected to the motor inside the fan. The motor can drive the fan blade to rotate through the bearing 1. The support 2 is located in the middle of the bearing 1 to support the bearing 1, so as to improve the stability of the bearing 1 during operation. The upper end of the support 2 is connected with an installation shell 3 by bolts. It is convenient to remove the installation shell 3 between the installation shell 3 and the support 2, and the installation shell 3 can be easily removed for maintenance and overall replacement. A fixed box 4 is fixedly installed inside the installation shell 3. A driving shaft 11 is also rotatably installed on the inner side of the installation shell 3. The end of the driving shaft 22 is connected to an external motor. The driving shaft 11 can be driven to rotate by the external motor. The driving shaft 11 is disposed through the fixed box 4, and a turntable 5 is fixedly installed on the part of the driving shaft 11 located inside the fixed box 4. The rotation of the driving shaft 11 can drive the turntable 5 to rotate. A flow hole 6 is formed inside the turntable 5, and the shape of the flow hole 6 is as shown in the accompanying drawings.

[0020] An oil supply mechanism is fixedly installed on the upper surface of the fixed box 4. The oil supply mechanism is used to supply lubricating oil into the fixed box 4. An oil storage mechanism is fixedly installed on one side of the installation shell 3. The oil storage mechanism is fixedly connected to the oil supply mechanism, and the oil storage mechanism supplies lubricating oil into the oil supply mechanism. An oil injection hole 13 is formed inside the upper end of the support 2. The opening of the oil injection hole 13 faces the surface of the bearing 1, and the extension line of the central axis of the oil injection hole 13 passes through the central axis of the bearing 1. The oil injection hole 13 is communicated with the inside of the fixed box 4. The rotation trajectory of the center point of the flow hole 6 passes through the extension line of the central axis of the oil injection hole 13, and the lubricating oil inside the oil injection hole 13 can contact the surface of the bearing 1 through the oil injection hole 13.

[0021] The oil supply mechanism includes a fixed sleeve housing 7, which is fixedly installed on the upper surface of the fixed box 4, and the bottom of the fixed sleeve housing 7 is in communication with the inside of the fixed box 4. The oil injection hole 13 coincides with the extension line of the central axis of the fixed sleeve housing 7. One side of the lower end of the fixed sleeve housing 7 is fixedly connected to the oil storage mechanism, which can supply lubricating oil into the fixed sleeve housing 7, and the lubricating oil can enter the fixed box 4 through the fixed sleeve housing 7. The upper end of the driving shaft 11 is fixedly installed with a lead screw 12. The rotation of the driving shaft 11 can drive the rotation of the lead screw 12. The turntable 5, the driving shaft 11 and the lead screw 12 are coaxially arranged. A linkage block 10 is sleeved on the outside of the lead screw 12 in a threaded manner. The lead screw 12 is a reciprocating lead screw, and the rotation of the lead screw 12 can drive the linkage block 10 to move up and down reciprocally. One side of the linkage block 10 is fixedly installed with a connecting rod 9. The end of the connecting rod 9 movably penetrates and extends into the fixed sleeve housing 7 and is fixedly installed with a pressing block 8. The pressing block 8 is a rubber plug. The up and down movement of the linkage block 10 can drive the pressing block 8 to move up and down through the connecting rod 9, and the up and down movement of the pressing block 8 can suck and transport the lubricating oil.

[0022] The oil storage mechanism includes a storage box 15, the inside of which is used to store lubricating oil. The storage box 15 is fixedly installed on one side of the installation shell 3. The bottom of the installation shell 3 is fixedly connected with a delivery pipe 14, and the end of the delivery pipe 14 is fixedly connected to one side of the lower end of the fixed sleeve housing 7. The lubricating oil inside the storage box 15 can be sent into the fixed sleeve housing 7 through the delivery pipe 14. The upper end of the storage box 15 is fixedly installed with an oil filling nozzle 16, which consists of a nozzle and an end cover. The end cover is threadedly covered on the outside of the nozzle. Valves are fixedly installed inside the end cover of the oil filling nozzle 16 and inside the end of the delivery pipe 14 close to the fixed sleeve housing 7. The valves are silicone one-way valves, which can prevent the lubricating oil entering the fixed sleeve housing 7 from flowing back into the delivery pipe 14.

[0023] For the convenience of description, it is considered that the state shown in the attached drawing is the initial state. The driving shaft 11 is driven to rotate by the motor. The rotation of the driving shaft 11 will drive the rotation of the turntable 5 and the lead screw 12. The rotation of the turntable 5 can drive the rotation of the circulation hole 6. According to the attached Figure 3From the perspective shown, the flow hole 6 will rotate counterclockwise. At this time, the flow hole 6 will move away from the oil injection hole 13. At the same time, during the rotation of the lead screw 12, it will drive the linkage block 10 to move upward. The linkage block 10 drives the pressing block 8 to move upward through the connecting rod 9. Since the flow hole 6 moves away from the oil injection hole 13, the bottom of the fixed sleeve 7 and the flow hole 6 are completely blocked by the turntable 5. When the pressing block 8 moves upward, based on the balance principle of atmospheric pressure and liquid pressure, when the pressing block 8 moves upward, it will increase the pressure in the internal space at the lower end of the fixed sleeve 7. However, the bottom of the fixed sleeve 7 is blocked by the turntable 5, so the atmospheric pressure will press the lubricating oil into the fixed sleeve 7 through the storage box 15. During this process, the external air enters the storage box 15 through the valve body inside the oil filling nozzle 16. The air pressure squeezes the lubricating oil in the storage box 15 and squeezes the lubricating oil towards the valve body at the end of the delivery pipe 14. When the valve body at the end of the delivery pipe 14 is squeezed, it will open automatically to allow the lubricating oil to enter the fixed sleeve 7;

[0024] At this time, it is at the critical point. The linkage block 10 drives the pressing block 8 to move upward to the highest point. The lubricating oil is located below the pressing block 8, and one end of the flow hole 6 just rotates above the oil injection hole 13. When the lead screw 12 continues to rotate, the linkage block 10 drives the pressing block 8 to move downward. The pressing block 8 will press the lubricating oil into the flow hole 6 and enter the oil injection hole 13 through the flow hole 6. The lubricating oil is squeezed into the gap between the bearing 1 and the support 2 through the oil injection hole 13. During the rotation of the bearing 1, the lubricating oil can be evenly coated on the mutually contacting surfaces of the bearing 1 and the support 2, playing a lubricating role, reducing noise, reducing the wear between the bearing 1 and the support 2, and prolonging the service life of the bearing 1. Since the cross-sectional area of the flow hole 6 is relatively large, when the pressing block 8 moves downward to the lowest point, the other end of the flow hole 6 just rotates above the oil injection hole 13, and the device returns to the initial state at this time, repeatedly lubricating the surface of the bearing 1 in this way.

[0025] When the driving shaft 11 stops rotating, the valve bodies inside the oil filling nozzle 16 and the delivery pipe 14 are in the closed state. The lubricating oil inside the storage box 15 will not leak out through the oil filling nozzle 16, nor will it enter the fixed sleeve 7 through the delivery pipe 14. During the operation of the device, some air will enter the storage box 15. However, under normal conditions, the air cannot enter the storage box 15 through the valve body inside the oil filling nozzle 16, which has little impact on the lubricating oil and does not affect the use of the lubricating oil.

[0026] The motor connected to the drive shaft 11 is electrically connected to the power switch of the fan through an external control device. The control device is a PLC. When the power switch of the fan is turned on, the power inside the motor connected to the drive shaft 11 is turned on through the control device, and the drive shaft 11 is rotated for 1 minute. The specific time is set according to needs. Rotating the drive shaft 11 for 1 minute can lubricate the surface of the bearing 1 one or two times. Then, the control device controls the power of the motor connected to the drive shaft 11 to be disconnected, and the power switch of the fan is turned off arbitrarily according to the specific usage time of the user. In this way, the bearing 1 can be lubricated by this lubrication device every time the fan is turned on, and the oiling time is short, so that excessive lubricating oil will not be caused. The PLC is an existing device, and its control principle is well known to those skilled in the art and will not be elaborated here.

[0027] In addition, this bearing lubrication device can also be used for lubricating other bearings inside the fan. Since the fan is provided with a function of shaking its head, the fan and the head-shaking function are selectively used. When switching the head-shaking function, the inside of the fan will be engaged with the bearing connecting the fan blades through a gear structure, so that the bearing connecting the fan blades can drive the fan to shake its head through the gear structure while rotating. However, the bearing connecting the gear structure will adjust its position when switching the head-shaking. In order to avoid large losses between this bearing and its support, since this bearing lubrication device can not only lubricate the rotating bearing, but also be suitable for lubricating the slidable bearing, therefore, it can also provide lubrication for it through this bearing lubrication device.

[0028] Working principle: During the use of this fan motor bearing lubrication device, the motor connected to the drive shaft 11 drives the drive shaft 11 to rotate. The rotation of the drive shaft 11 drives the turntable 5 and the lead screw 12 to rotate. The rotation of the turntable 5 drives the flow hole 6 to rotate. The rotation of the lead screw 12 drives the linkage block 10 to move up and down. The up and down movement of the linkage block 10 drives the pressing block 8 to move up and down through the connecting rod 9. The up and down movement of the pressing block 8 sucks the lubricating oil inside the delivery pipe 14 into the fixed sleeve 7. The lubricating oil will enter the oil injection hole 13 through the flow hole 6, and the lubricating oil is sent between the bearing 1 and the support 2 through the oil injection hole 13. During the rotation of the bearing 1, the lubricating oil can be evenly smeared on the mutually contacting surfaces of the bearing 1 and the support 2, which can reduce noise and reduce the loss between the bearing 1 and the support 2, and prolong the service life of the bearing 1.

[0029] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A lubricating device for a fan motor bearing, comprising a bearing (1) and a support (2), wherein the bearing (1) is disposed through the inside of the support (2), and is characterized in that, The upper end of the support (2) is connected with an installation shell (3) through bolts. A fixed box (4) is fixedly installed inside the installation shell (3). A driving shaft (11) is also rotatably installed on the inner side of the installation shell (3). The driving shaft (11) penetrates through the fixed box (4), and a turntable (5) is fixedly installed on the part of the driving shaft (11) inside the fixed box (4). A circulation hole (6) is formed inside the turntable (5). An oil supply mechanism is fixedly installed on the upper surface of the fixed box (4). An oil storage mechanism is fixedly installed on one side of the installation shell (3). The oil storage mechanism is fixedly connected with the oil supply mechanism. An oil injection hole (13) is formed inside the upper end of the support (2), and the oil injection hole (13) is communicated with the inside of the fixed box (4).

2. The fan motor bearing lubrication device according to claim 1, wherein, The oil supply mechanism includes a fixed sleeve (7). The fixed sleeve (7) is fixedly installed on the upper surface of the fixed box (4), and the bottom of the fixed sleeve (7) is communicated with the inside of the fixed box (4). A lead screw (12) is fixedly installed at the upper end of the driving shaft (11). A linkage block (10) is sleeved on the outer side of the lead screw (12) in a threaded manner. A connecting rod (9) is fixedly installed on one side of the linkage block (10). The end of the connecting rod (9) movably penetrates and extends into the fixed sleeve (7) and is fixedly installed with a pressing block (8). One side of the lower end of the fixed sleeve (7) is fixedly connected with the oil storage mechanism.

3. The fan motor bearing lubrication device according to claim 2, characterized in that, The central axis extension line of the oil injection hole (13) coincides with the central axis of the fixed sleeve (7). The rotation track of the center point of the circulation hole (6) passes through the central axis extension line of the oil injection hole (13).

4. The fan motor bearing lubrication device according to claim 3, characterized in that, The turntable (5), the driving shaft (11) and the lead screw (12) are coaxially arranged.

5. The fan motor bearing lubrication device according to claim 4, characterized in that, The oil storage mechanism includes a storage box (15). The storage box (15) is fixedly installed on one side of the installation shell (3). A delivery pipe (14) is fixedly connected to the bottom of the installation shell (3). The end of the delivery pipe (14) is fixedly connected with one side of the lower end of the fixed sleeve (7). An oil filling nozzle (16) is fixedly installed at the upper end of the storage box (15). Valves are fixedly installed inside the end cover of the oil filling nozzle (16) and inside the end of the delivery pipe (14) close to the fixed sleeve (7).

6. The fan motor bearing lubrication device according to claim 5, characterized in that, The valve is a silica gel one-way valve.

7. The lubricating device for the fan motor bearing according to claim 1, characterized in that, The central axis extension line of the oil injection hole (13) passes through the central axis of the bearing (1).

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