Fan with oil overflow prevention groove structure

Abstract

The utility model relates to the related technical field of fan structures, in particular to a fan with an oil overflow prevention groove structure, which comprises a fan frame main body and fan blades, an oil bearing is arranged on the fan frame main body, the middle of each fan blade is connected with a resin part, the end part of each resin part is connected with one end of a shaft core in a matched manner, and the other end of each shaft core is connected with a fan blade. The other end of the shaft core is connected with the oil bearing in a matched mode, the annular groove is formed in the portion, close to the shaft core, of the end of the resin part, the oil-proof agent is smeared in the annular groove, the annular groove is composed of the bottom and the protruding end, it can be guaranteed that the oil-proof agent is evenly smeared on the whole circumference, meanwhile, the problem that the oil bearing overflows is solved, and the service life of the fan is prolonged. And the use effect of the fan is improved.

Description

Technical Field

[0001] The utility model relates to a fan slot structure, in particular to a fan with an oil overflow prevention slot structure, and belongs to the technical field related to fan structures. Background Art

[0002] One of the main factors affecting the life of a fan with an oil-containing bearing structure is the oil content of the bearing (the amount of grease), so oil loss directly affects the life of the fan. When the fan is running at high speed, a vacuum is formed between the bearing and the shaft core, and the grease will move along the surface of the shaft core as the shaft core rotates. In addition to natural consumption, the most common phenomenon of grease is overflow due to structural reasons. In order to prevent oil overflow, the best practice in the industry is to apply oil repellent at the root of the shaft core, but due to the small location, the uniformity of the application cannot be guaranteed, so the failure rate of preventing overflow is extremely high.

[0003] Therefore, there is an urgent need to improve the existing connection structure between the shaft core and the fan blades to solve the above-mentioned problems. Utility Model Content

[0004] The utility model aims to provide a fan with an oil overflow prevention groove structure. According to actual use needs, an oil-proof agent is arranged at the connection between the resin part and the shaft core to prevent grease from the oil-containing bearing from overflowing. The fan is easy to use and install.

[0005] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0006] A fan frame body, wherein an oil-containing bearing is arranged on the fan frame body;

[0007] A shaft core, one end of which is cooperatively connected with the oil-containing bearing;

[0008] A fan blade, wherein a resin portion is connected to the middle of the fan blade, an end of the resin portion is matched and connected to the other end of the shaft core, and an annular groove is provided at the end of the resin portion close to the shaft core;

[0009] An oil-proofing agent is filled and applied in the annular groove.

[0010] Preferably, the annular groove comprises a bottom and a raised end, the inner periphery of the bottom is integrally connected with the inner periphery of the resin portion, and a distance is left between the inner periphery of the raised end and the inner periphery of the resin portion.

[0011] Preferably, the outer diameter of the protruding end is larger than the outer diameter of the resin portion.

[0012] Preferably, the bottom and the raised end are integrally molded and cast with the resin portion.

[0013] Preferably, an annular expansion groove is provided on the inner periphery of the end of the oil-containing bearing.

[0014] Preferably, an annular buffer groove is provided in the middle of the shaft core, and the annular buffer groove is provided between the annular groove and the annular expansion groove.

[0015] The utility model has at least the following beneficial effects:

[0016] 1. This structure adopts an annular groove designed at the junction of the fan blade shaft core and the resin. The annular groove is coated with an oil-proof agent to block the oil path. At the same time, the raised end of the annular groove plays a role in oil reflux, and finally solves the problem of grease overflow. The design of the groove body can limit the oil-proof agent to the specified area, solves the problem of oil-containing bearing overflow, and maintains the service life of the fan.

[0017] 2. The oil-proof agent can fully convect in the annular groove, so that the oil-proof agent in the annular groove can flow evenly to all positions to ensure the oil-proof effect.

[0018] 3. The annular groove is arranged at the connection part between the fan blade and the resin, and can be integrally formed with the resin part. The manufacturing is simple and the cost is low, and it is suitable for industrial production. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0020] Figure 1 It is a schematic diagram of the matching relationship between the shaft core and the fan blade in the prior art;

[0021] Figure 2 A schematic diagram of the overall combined structure provided by the utility model;

[0022] Figure 3 A schematic diagram of the matching relationship between the shaft core and the fan blades provided by the utility model;

[0023] Figure 4 This is a schematic diagram of the three-dimensional structure of the shaft core and the resin part provided by the utility model.

[0024] In the figure, 1. annular groove; 2. raised end; 3. resin part; 4. shaft core; 5. bottom; 6. oil repellent; 7. oil-containing bearing; 8. fan frame body; 9. fan blades; 10. annular expansion groove; 11. annular buffer groove. DETAILED DESCRIPTION

[0025] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0026] like Figures 2 to 4 As shown, the fan with an oil-proof overflow groove structure provided in this embodiment includes a fan frame body 8 and a fan blade 9, wherein an oil-containing bearing 7 is arranged on the fan frame body 8, and a resin part 3 is arranged in the middle of the fan blade 9, and the resin part 3 is cast and formed, and the resin part 3 is matched and connected with one end of the shaft core 4, and the other end of the shaft core 4 is matched and connected with the oil-containing bearing 7, and the resin part 3 is in a vertical tube shape, and an annular groove 1 is arranged at the end of the resin part 3 close to the shaft core 4, and the annular groove 1 is filled with an oil-proof agent 6, and the oil-proof agent 6 can be selected from the oil-proof agent for fans in the prior art, and a coil and other structures are arranged on the fan frame body 8 to meet the rotation use requirements of the shaft core 4.

[0027] Preferably, see Figures 1 to 4 The annular groove 1 includes a bottom 5 and a raised end 2, the inner circumference of the bottom 5 is integrally connected to the inner circumference of the resin part 3, and a distance is left between the inner circumference of the raised end 2 and the inner circumference of the resin part 3. The recessed part where the bottom 5 is connected to the raised end 2 is the application area of ​​the oil-proofing agent 6. The application thickness of the oil-proofing agent 6 can be determined according to factors such as demand and the distance between the resin part 3 and the oil-containing bearing 7.

[0028] Preferably, see Figure 3 , Figure 4 The outer diameter of the protruding end 2 is larger than the outer diameter of the resin portion 3. This structure is used to increase the effective range of the protruding end 2, thereby expanding the range of the oil release overflow circle and improving the oil prevention and grease backflow effect.

[0029] Preferably, the bottom 5 and the raised end 2 are integrally molded and cast with the resin portion 3 . The bottom 5 and the raised end 2 are both made of resin material and can be integrally formed in a casting mold of the resin portion 3 .

[0030] Preferably, see Figure 3 , Figure 4 An annular expansion groove 10 is provided at the inner periphery of the end of the oil-containing bearing 7. The annular expansion groove 10 can facilitate the position calibration of the shaft core 4 during installation. The annular expansion groove 10 can also facilitate the reflux of grease from the annular groove 1. An annular buffer groove 11 is provided in the middle of the shaft core 4. The annular buffer groove 11 is arranged between the annular groove 1 and the annular expansion groove 10. The annular buffer groove 11 can ensure smooth grease reflux, which is conducive to stable grease reflux.

[0031] like Figures 1 to 4As shown, the principle of the fan with the oil overflow prevention groove structure provided in this embodiment is as follows: Figure 1 As shown in the connection structure diagram between the oil-containing bearing 7, the shaft core 4 and the resin part 3, the conventional end of the resin part 3 does not have an oil overflow prevention structure, and the grease flows from the end of the oil-containing bearing 7 toward the end of the resin part 3. As the shaft core 4 rotates, it is easy to cause the grease to overflow. Figures 2 to 4 The oil-proofing agent 6 is applied to the annular groove 1 in the present structure to block the oil path. At the same time, the raised end 2 of the annular groove 1 plays a role in oil reflux, and finally solves the problem of grease overflow. The design of the groove body can limit the oil-proofing agent 6 to the specified area. At the same time, because the oil-proofing agent 6 is a liquid solution, it can also fully convect in the annular groove 1, so that the oil-proofing agent 6 in the annular groove 1 can flow evenly to all positions.

Claims

1. A fan with an oil overflow prevention groove structure, characterized in that: include: A fan frame body (8), wherein an oil-containing bearing (7) is provided on the fan frame body (8); A shaft core (4), one end of the shaft core (4) being cooperatively connected to the oil-containing bearing (7); A fan blade (9), wherein a resin portion (3) is connected to the middle of the fan blade (9), an end of the resin portion (3) is cooperatively connected to the other end of the shaft core (4), and a portion of the end of the resin portion (3) close to the shaft core (4) is provided with an annular groove (1); An oil-proofing agent (6), wherein the oil-proofing agent (6) is filled and applied in the annular groove (1).

2. A fan with an oil overflow prevention groove structure according to claim 1, characterized in that: The annular groove (1) comprises a bottom (5) and a raised end (2); the inner periphery of the bottom (5) is integrally connected to the inner periphery of the resin portion (3); and a distance is left between the inner periphery of the raised end (2) and the inner periphery of the resin portion (3).

3. A fan with an oil overflow prevention groove structure according to claim 2, characterized in that: The outer diameter of the protruding end (2) is larger than the outer diameter of the resin portion (3).

4. The fan with an oil overflow prevention groove structure according to claim 2, characterized in that: The bottom (5) and the raised end (2) are integrally molded and cast with the resin portion (3).

5. The fan with an oil overflow prevention groove structure according to claim 1, characterized in that: An annular expansion groove (10) is provided on the inner periphery of the end of the oil-containing bearing (7).

6. The fan with an oil overflow prevention groove structure according to claim 5, characterized in that: An annular buffer groove (11) is provided in the middle of the shaft core (4), and the annular buffer groove (11) is provided between the annular groove (1) and the annular expansion groove (10).

Images