Deep groove ball bearing ring

Abstract

The utility model provides a deep groove ball bearing ring which comprises a body, two annular raceways are arranged on the outer circumferential surface of the body, a plurality of annular oil storage grooves are formed in the bottoms of the raceways, a partition structure is formed between the two annular raceways, a plurality of oil guide holes are formed in the partition structure, and lubricating oil holes are formed in the two side walls of the partition structure. The lubricating oil hole is communicated with the oil guide hole; the two side end faces of the body are respectively provided with a plurality of air guide holes, the outer end face of the body is provided with air guide grooves corresponding to the air ports, the depth of the air guide grooves is gradually increased from the sides away from the air guide holes to the sides close to the air guide holes, the air ports are located at the lowest positions of the air guide grooves, and air blocking steps are formed in the positions, close to the air ports, of the air guide grooves. The multiple air guide holes are formed in the end faces of the two sides of the body respectively, airflow passing through the air guide holes can take away part of heat of the bearing, meanwhile, the air guide grooves are formed in the air openings in the two ends of the air guide holes, the airflow entering the air guide holes can be increased to the maximum extent through the air guide grooves, and the cooling effect of the airflow on the bearing ring is effectively improved.

Description

Technical Field

[0001] This invention belongs to the technical field of bearing ring products, and in particular relates to a deep groove ball bearing ring. Background Technology

[0002] Deep groove ball bearings come in single-row and double-row types. They have a low coefficient of friction, high limiting speed, and are suitable for high-speed applications. Due to their diverse size range and forms, they are used in precision instruments, low-noise motors, automobiles, motorcycles, and general machinery, making them one of the most widely used types of bearings in the machinery industry. A typical deep groove ball bearing consists of an outer ring, an inner ring, a set of balls, and a cage. It primarily bears radial loads but can also withstand a certain amount of axial load. With increasingly in-depth research into low-noise bearings, higher demands are being placed on the quality of the bearing rings. Traditional double-row deep groove ball bearings experience high temperatures during use, and due to the poor lubrication retention capacity of the inner ring, lubrication performance gradually decreases over time. This leads to problems such as high noise and easy wear of the inner ring, resulting in decreased bearing precision. Therefore, it is necessary to improve the existing bearing inner ring structure. Summary of the Invention

[0003] In view of this, the present invention aims to overcome the defects in the prior art and proposes a deep groove ball bearing ring.

[0004] To achieve the above objectives, the technical solution created by this invention is implemented as follows:

[0005] A deep groove ball bearing race includes a body with two annular raceways on its outer circumference and several annular oil reservoirs at the bottom of the raceways. A partition structure is formed between the two annular raceways, and several oil guide holes are provided on the partition structure. Lubricating oil holes are provided on both side walls of the partition structure, and the lubricating oil holes communicate with the oil guide holes. Several air guide holes are provided on both end faces of the body. The air guide holes are V-shaped and include two air guide sections arranged at an inclination relative to the end face of the body. The two air guide sections are connected inside the body, and each air guide section forms an air vent with the outer end face of the body. Corresponding to the air vent, an air guide groove is provided on the outer end face of the body. The depth of the air guide groove gradually increases from the side away from the air guide hole to the side closer to the air guide hole. The air vent is located at the lowest position of the air guide groove, and a wind-blocking step is formed near the air vent in the air guide groove.

[0006] Furthermore, the oil guide hole is arranged radially along the body.

[0007] Furthermore, the angle between the lubricating oil hole and the oil guide hole is an acute angle.

[0008] Furthermore, the inner diameter of the air guide section gradually increases from the air outlet side towards the inner side of the main body.

[0009] Furthermore, the air guide trough has a fan-shaped structure, with the air outlet located on one side of its center.

[0010] Furthermore, the oil guide hole includes a large-diameter section and a small-diameter section arranged sequentially from the outside to the inside, and the lubricating oil hole is connected to the small-diameter section.

[0011] Furthermore, each annular raceway is equipped with two annular liquid storage tanks.

[0012] Furthermore, the two lubricating oil holes are symmetrically arranged on both sides of the oil guide hole.

[0013] Compared with existing technologies, the present invention has the following advantages:

[0014] This invention features a rationally designed structure. By providing several air guide holes on both ends of the main body, the airflow passing through these holes carries away some of the bearing's heat, achieving a cooling effect. Simultaneously, air guide grooves are provided at the air inlets at both ends of the air guide holes. These grooves maximize the airflow entering the air guide holes, effectively improving the cooling effect on the bearing raceways. Furthermore, several annular oil reservoirs are located at the bottom of the annular raceway. In practical applications, after lubrication of the bearing, a certain amount of lubricating oil is maintained in the reservoirs, effectively improving the lubrication of the bearing balls. Additionally, the small-diameter section of the oil guide hole connects to the lubrication hole, forming an oil storage cavity at the inner end of the small-diameter section. This oil can be slowly released during long-term bearing use, extending the lubrication duration. Attached Figure Description

[0015] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0016] Figure 1 A schematic diagram of the actual structure of the present invention;

[0017] Figure 2 A schematic diagram of the side structure created for this invention;

[0018] Figure 3 for Figure 2 A partial sectional view from a specific perspective;

[0019] Figure 4 for Figure 3 Schematic diagram of the central air guide hole section;

[0020] Figure 5 A cross-sectional schematic diagram created for this invention;

[0021] Figure 6 for Figure 5 A schematic diagram of the lubricating oil tank section. Detailed Implementation

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0023] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this invention and for simplifying the description, and do not 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 on this invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0024] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0025] The invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] A type of deep groove ball bearing ring, such as Figures 1 to 6 As shown, the device includes a main body. Two annular raceways 1 are provided on the outer circumference of the main body. Several annular oil reservoirs 2 are provided at the bottom of the raceways. A partition structure 3 is formed between the two annular raceways. Several oil guide holes 4 are provided on the partition structure. Lubricating oil holes 5 are provided on both side walls of the partition structure, and the lubricating oil holes communicate with the oil guide holes. Preferably, the oil guide holes are arranged radially along the main body, and two lubricating oil holes are symmetrically arranged on both sides of the oil guide holes. For example, there are usually 3-5 oil guide holes, typically evenly distributed along the outer circumference of the main body.

[0027] For example, each annular raceway is equipped with two annular fluid reservoirs. In practical applications, after the bearing is lubricated, a certain amount of lubricating oil will remain in the reservoirs, increasing the contact opportunities between the lubricating oil in the annular raceway and the bearing balls, effectively improving the lubrication of the bearing balls. At the same time, the oil in the reservoirs can be slowly released during the long-term use of the bearing, extending the lubrication time.

[0028] Several air guide holes 6 are provided on both sides of the main body. The air guide holes are V-shaped and include two air guide sections 7 arranged at an angle relative to the end face of the main body. The two air guide sections are connected inside the main body, and each air guide section forms an air vent 8 between itself and the outer end face of the main body. Corresponding to the air vent, an air guide groove 9 is provided on the outer end face of the main body. The depth of the air guide groove gradually increases from the side away from the air guide hole to the side closer to the air guide hole. The air vent is located at the lowest position of the air guide groove, and a wind-blocking step 10 is formed near the air vent of the air guide groove, so that the airflow outside the bearing can more easily enter the air vent through the air guide groove and then enter the air guide hole to form a cooling effect on the bearing ring.

[0029] In an optional embodiment, the air guide groove has a fan-shaped structure, with the air outlet located on one side of its center. To improve the cooling effect of airflow through the air guide hole, the inner diameter of the air guide section gradually increases from the air outlet side towards the inner side of the main body; that is, the opening diameter at both ends of the air guide hole is large, while the inner diameter is small. This causes the airflow to form a Venturi-like effect in the middle of the air guide hole, improving the airflow's cooling effect on the bearing race. Furthermore, the bearing race provided by this invention has no distinction between forward and reverse orientation; the air guide hole can cool the bearing race through airflow in either installation direction (forward or reverse rotation).

[0030] To facilitate the machining of the lubricating oil hole, the angle between the lubricating oil hole and the guide oil hole is an acute angle, that is, the outer end of the lubricating oil hole faces the open end of the annular raceway. This makes it easier for the drill bit to drill the lubricating oil hole from the outside of the annular raceway, reducing the difficulty of machining the lubricating oil hole. At the same time, the lubricating oil hole faces the open end of the annular raceway, so when the lubricating oil is discharged through the lubricating oil hole, it can lubricate the ball part.

[0031] The oil guide hole includes a large-diameter section 11 and a small-diameter section 12 arranged sequentially from the outside to the inside, with the lubricating oil hole communicating with the small-diameter section. Furthermore, the diameter of the small-diameter section is larger than the diameter of the oil passage hole, and the depth of the small-diameter section is greater than the depth of the lubricating oil hole, thereby forming an oil storage cavity 13 at the inner end of the small-diameter section. This oil storage cavity can store a certain amount of oil to a certain extent, so that it can be slowly released during long-term use of the bearing, thus prolonging the lubrication effect.

[0032] This invention features a rationally designed structure. By providing several air guide holes on both ends of the main body, the airflow passing through these holes carries away some of the bearing's heat, achieving a cooling effect. Simultaneously, air guide grooves are provided at the air inlets at both ends of the air guide holes. These grooves maximize the airflow entering the air guide holes, effectively improving the cooling effect on the bearing raceways. Furthermore, several annular oil reservoirs are located at the bottom of the annular raceway. In practical applications, after lubrication of the bearing, a certain amount of lubricating oil is maintained in the reservoirs, effectively improving the lubrication of the bearing balls. Additionally, the small-diameter section of the oil guide hole connects to the lubrication hole, forming an oil storage cavity at the inner end of the small-diameter section. This oil can be slowly released during long-term bearing use, extending the lubrication duration.

[0033] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A deep groove ball bearing race, characterized in that: The device includes a main body with two annular raceways on its outer circumference. Several annular oil reservoirs are located at the bottom of the raceways, forming a partition structure between the two raceways. This partition structure has several oil guide holes, and lubricating oil holes are located on both sides of the partition structure, communicating with the oil guide holes. Several air guide holes are located on both end faces of the main body. These air guide holes are V-shaped and include two air guide sections arranged at an angle relative to the end faces of the main body. These two air guide sections are connected within the main body, and each air guide section forms an air vent with the outer end face of the main body. Corresponding to the air vents on the outer end face of the main body, an air guide groove is provided. The depth of the air guide groove gradually increases from the side furthest from the air guide hole to the side closer to the air guide hole. The air vent is located at the lowest point of the air guide groove, and a wind-blocking step is formed near the air vent in the air guide groove.

2. The deep groove ball bearing ring according to claim 1, characterized in that: The oil guide holes are arranged radially along the body.

3. A deep groove ball bearing ring according to claim 1, characterized in that: The angle between the lubricating oil hole and the oil guide hole is an acute angle.

4. A deep groove ball bearing ring according to claim 1, characterized in that: The inner diameter of the air guide section gradually increases from the air outlet side towards the inner side of the main body.

5. A deep groove ball bearing ring according to claim 1, characterized in that: The air guide trough has a fan-shaped structure, with the air outlet located on one side of its center.

6. A deep groove ball bearing ring according to claim 1, characterized in that: The oil guide hole includes a large-diameter section and a small-diameter section arranged sequentially from the outside to the inside, and the lubricating oil hole is connected to the small-diameter section.

7. A deep groove ball bearing ring according to claim 6, characterized in that: Each annular raceway contains two annular liquid storage tanks.

8. A deep groove ball bearing ring according to claim 1, characterized in that: The two lubricating oil holes are symmetrically arranged on both sides of the oil guide hole.

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