A lubricating oil return structure

Abstract

The utility model relates to a kind of lubricating oil backflow structure, belong to backflow structure technical field, including outer ring and inner ring, the inside of outer ring is equipped with first retaining ring, multiple ball bearings are rotatably connected between first retaining ring and inner ring, the outside of outer ring is equipped with multiple heat dissipation holes, the inside of each heat dissipation hole is fixed with radiating fin, the front of outer ring is equipped with connecting assembly.The lubricating oil backflow structure, the design of heat dissipation hole and radiating fin significantly increases the heat dissipation area, improves the heat dissipation efficiency, ensures that lubricating oil can still maintain good lubricating property under high temperature environment, lubricating oil enters annular groove through oil outlet hole, after heat dissipation, backflow to first retaining ring through outflow pipe, realizes the recycling of lubricating oil, reduces the waste of lubricating oil, by setting radiating fin in heat dissipation hole, not only can improve the heat dissipation effect, but also can prevent lubricating oil from leaking from heat dissipation hole, ensure the stable operation of lubricating oil circulation system.

Description

Technical Field

[0001] This utility model relates to the field of reflux structure technology, specifically a lubricating oil reflux structure. Background Technology

[0002] Bearings are an important component in modern mechanical equipment. Their main function is to support rotating mechanical bodies, reduce the coefficient of friction during their movement, and ensure their rotational accuracy. According to the different frictional properties of moving elements, bearings can be divided into two main categories: rolling bearings and sliding bearings. Rolling bearings have been standardized and serialized, but compared with sliding bearings, they have larger radial dimensions, vibration and noise, and are also more expensive. Many bearings cannot be used without lubricating oil.

[0003] For example, CN208268227U discloses a bearing with a lubricating oil return structure, including an outer ring, an inner ring disposed within the inner cavity of the outer ring, rolling elements fixedly connected to the surface of the inner ring, a first cage movably connected to the end of the rolling elements away from the inner ring, an oil return groove formed in the inner cavity of the outer ring, the first cage located within the inner cavity of the oil return groove, and a partition frame disposed outside the oil return groove. This utility model solves the problem of traditional bearings lacking a lubricating oil return structure by using the oil return groove, partition frame, oil baffle, oil inlet, oil return channel, second cage, return pipe, first oil baffle, second oil baffle, and heat dissipation channel in combination. This bearing with a lubricating oil return structure possesses the advantages of such a structure: the lubricating oil can be reused, reducing operating costs; it has good heat dissipation; and cooling oil can be added, greatly extending the bearing's service life.

[0004] Although the aforementioned patent reduces the cost of use, has good heat dissipation, and allows the addition of cooling oil, greatly extending the service life of the bearing, the prior art of this patent does not have a leak-proof structure in the heat dissipation channel. The heat dissipation channel is connected to the oil return channel, which can easily lead to lubricating oil leakage, reducing its practicality. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a lubricating oil reflux structure, which has advantages such as preventing lubricating oil from leaking from the heat dissipation holes and ensuring the stable operation of the lubricating oil circulation system, thus solving the problems mentioned in the background technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A lubricating oil reflux structure includes an outer ring and an inner ring, wherein a first retaining ring is provided inside the outer ring; Multiple ball bearings are rotatably connected between the first retaining ring and the inner ring. Multiple heat dissipation holes are provided on the outer side of the outer ring, and a heat dissipation fin is fixed inside each heat dissipation hole. A connecting component is provided on the front side of the outer ring.

[0007] Furthermore, the connecting assembly includes an annular groove formed on the front side of the outer ring, a second retaining ring is fixed on the front side of the annular groove, a plurality of oil outlet holes are formed through the outer side of the second retaining ring, a return pipe is fixed inside the second retaining ring, and the end of the return pipe away from the second retaining ring is connected to the first retaining ring.

[0008] Furthermore, there are four reflux pipes, which are evenly distributed inside the second retaining ring.

[0009] Furthermore, the heat sink is a magnesium alloy sheet.

[0010] Furthermore, the plurality of heat dissipation holes are evenly distributed on the outer side of the outer ring.

[0011] Furthermore, a heat dissipation coating is provided on the outer side of the outer ring.

[0012] Furthermore, the heat dissipation coating is a graphene heat dissipation coating.

[0013] Furthermore, all of the aforementioned heat dissipation holes and oil outlet holes are connected to the annular groove.

[0014] Compared with the prior art, the present invention provides a lubricating oil reflux structure, which has the following beneficial effects: This lubricating oil reflux structure significantly increases the heat dissipation area and improves heat dissipation efficiency through the design of heat dissipation holes and heat sinks. The outer side of the outer ring is coated with a graphene heat dissipation coating, which further enhances the heat dissipation effect and ensures that the lubricating oil can maintain good lubrication performance in high-temperature environments. The lubricating oil enters the annular groove through the oil outlet hole, and after being cooled, it flows back to the first retaining ring through the outlet pipe, realizing the recycling of lubricating oil and reducing lubricating oil waste. By placing the heat sink inside the heat dissipation hole, not only can the heat dissipation effect be improved, but the lubricating oil can also be prevented from leaking from the heat dissipation hole, ensuring the stable operation of the lubricating oil circulation system. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the connection component of this utility model; Figure 3 This is a schematic diagram of the connection structure of the outer ring, annular groove, second retaining ring and first retaining ring of this utility model.

[0016] In the diagram: 1 Outer ring, 2 Inner ring, 3 First retaining ring, 4 Ball bearing, 5 Heat dissipation hole, 6 Heat sink, 7 Connecting assembly, 701 Annular groove, 702 Second retaining ring, 703 Oil outlet, 704 Return pipe. Detailed Implementation

[0017] 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.

[0018] Please see Figure 1 The lubricating oil return structure in this embodiment includes an outer ring 1 and an inner ring 2, and a first retaining ring 3 is provided inside the outer ring 1.

[0019] In this embodiment, a plurality of ball bearings 4 are rotatably connected between the first retaining ring 3 and the inner ring 2. A plurality of heat dissipation holes 5 are provided on the outer side of the outer ring 1. A heat dissipation fin 6 is fixed inside each heat dissipation hole 5. A connecting component 7 is provided on the front side of the outer ring 1.

[0020] Specifically, the heat sink 6 is a magnesium alloy sheet, and multiple heat dissipation holes 5 are evenly distributed on the outer side of the outer ring 1. A heat dissipation coating is provided on the outer side of the outer ring 1, and the heat dissipation coating is a graphene heat dissipation coating.

[0021] Please see Figures 2 to 3 In this embodiment, the connecting component 7 includes an annular groove 701 formed on the front of the outer ring 1. A second retaining ring 702 is fixed on the front of the annular groove 701. A plurality of oil outlet holes 703 are formed through the outer side of the second retaining ring 702. A return pipe 704 is fixed inside the second retaining ring 702. One end of the return pipe 704 away from the second retaining ring 702 is connected to the first retaining ring 3.

[0022] Specifically, when the inner ring 2 drives the ball 4 to rotate, the lubricating oil in the ball 4 is thrown out and enters the annular groove 701 outside the first retaining ring 3. The lubricating oil flows in the annular groove 701 and enters the annular groove 701 outside the second retaining ring 702 through multiple oil outlet holes 703. When the lubricating oil flows in the annular groove 701 outside the second retaining ring 702, it is cooled by multiple heat dissipation holes 5 and heat dissipation fins 6 on the outer ring 1. The heat dissipation fins 6 are set inside the heat dissipation holes 5, which increases the heat dissipation area and improves the heat dissipation efficiency. The cooperation between the heat dissipation holes 5 and the heat dissipation fins 6 enables the lubricating oil to effectively exchange heat with the outside air during the flow process, thereby reducing the temperature of the lubricating oil.

[0023] Specifically, there are four return pipes 704, which are evenly distributed inside the second retaining ring 702, and multiple heat dissipation holes 5 and multiple oil outlet holes 703 are connected to the annular groove 701.

[0024] It should be noted that by setting multiple heat sinks 6 inside multiple heat dissipation holes 5, the leakage of lubricating oil through the heat dissipation holes 5 can be reduced. The lubricating oil after heat dissipation flows back to the inside of the first retaining ring 3 through four return pipes 704. The lubricating oil flowing back into the first retaining ring 3 is distributed to the balls 4 again to lubricate the balls 4, forming a circulating lubrication system.

[0025] The working principle of the above embodiments is as follows: In use, when the inner ring 2 drives the ball bearing 4 to rotate, the lubricating oil in the ball bearing 4 is thrown out and enters the annular groove 701 outside the first retaining ring 3. The lubricating oil flows in the annular groove 701 and enters the annular groove 701 outside the second retaining ring 702 through multiple oil outlet holes 703. When the lubricating oil flows in the annular groove 701 outside the second retaining ring 702, it is cooled by multiple heat dissipation holes 5 and heat dissipation fins 6 on the outer ring 1. The heat dissipation fins 6 are set inside the heat dissipation holes 5, which increases the heat dissipation area and improves the heat dissipation efficiency. The cooperation of the heat dissipation holes 5 and the heat dissipation fins 6 allows the lubricating oil to exchange heat effectively with the outside air during the flow process, reducing the temperature of the lubricating oil. The multiple heat dissipation fins 6 set inside the multiple heat dissipation holes 5 can reduce the possibility of oil leakage through the heat dissipation holes 5. The lubricating oil after cooling flows back to the inside of the first retaining ring 3 through four return pipes 704. The lubricating oil that flows back to the first retaining ring 3 is distributed to the ball bearing 4 again to lubricate the ball bearing 4, forming a circulating lubrication system.

[0026] It should be noted that the orientations or positional relationships indicated herein are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of facilitating the description of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lubricating oil reflux structure, comprising an outer ring (1) and an inner ring (2), characterized in that: The outer ring (1) is provided with a first retaining ring (3) inside; Multiple balls (4) are rotatably connected between the first retaining ring (3) and the inner ring (2). Multiple heat dissipation holes (5) are provided on the outer side of the outer ring (1). A heat dissipation fin (6) is fixed inside each heat dissipation hole (5). A connecting component (7) is provided on the front side of the outer ring (1).

2. The lubricating oil reflux structure according to claim 1, characterized in that: The connecting assembly (7) includes an annular groove (701) formed on the front of the outer ring (1). A second retaining ring (702) is fixed on the front of the annular groove (701). A plurality of oil outlet holes (703) are formed through the outer side of the second retaining ring (702). A return pipe (704) is fixed inside the second retaining ring (702). The end of the return pipe (704) away from the second retaining ring (702) is connected to the first retaining ring (3).

3. The lubricating oil reflux structure according to claim 2, characterized in that: The number of reflux pipes (704) is four, and they are evenly distributed inside the second retaining ring (702).

4. The lubricating oil reflux structure according to claim 1, characterized in that: The heat sink (6) is a magnesium alloy sheet.

5. The lubricating oil reflux structure according to claim 1, characterized in that: Multiple heat dissipation holes (5) are evenly distributed on the outer side of the outer ring (1).

6. The lubricating oil reflux structure according to claim 1, characterized in that: The outer ring (1) is provided with a heat dissipation coating on its outer side.

7. The lubricating oil reflux structure according to claim 6, characterized in that: The heat dissipation coating is a graphene heat dissipation coating.

8. The lubricating oil reflux structure according to claim 2, characterized in that: The multiple heat dissipation holes (5) and multiple oil outlet holes (703) are all connected to the annular groove (701).

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