Deep groove ball bearing with lubricating oil backflow structure

Abstract

The utility model discloses a deep groove ball bearing with a lubricating oil backflow structure, which relates to the technical field of bearings, and comprises a bearing outer ring, protective plates are symmetrically arranged in the bearing outer ring, a retainer mechanism is arranged in the bearing outer ring and is positioned on the two groups of protective plates, and a plurality of rolling balls are arranged in the retainer mechanism. And a bearing inner ring is arranged in the protection plate. The bearing is reasonable and reliable in combination, a lubricating oil backflow structure is formed by the bearing outer ring and the bearing inner ring, the lubricating oil can be continuously and uniformly distributed on the rolling ball, the consumption of the lubricating oil can be reduced, and the operation and maintenance cost is reduced, so that the overall operation efficiency of equipment is improved; therefore, backflow of lubricating oil is achieved, loss of oil inside and outside the bearing is avoided, the oil storage sponge can store the lubricating oil, the lubricating oil is gradually released when the bearing operates, frictional wear caused by insufficient lubrication is avoided, and the service life of the bearing is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of bearing technology, and more specifically, to a deep groove ball bearing with a lubricating oil return structure. Background Technology

[0002] Deep groove ball bearings, formerly known as radial ball bearings, are the most widely used type of rolling bearing. They are characterized by low frictional resistance and high speed. They can be used in components that bear radial loads or combined radial and axial loads, as well as components that bear axial loads, such as small power electric motors, automobile and tractor gearboxes, and machine tool gearboxes.

[0003] For example, Chinese patent CN220523108U discloses a deep groove ball bearing, including an inner ring and an outer ring, with rolling elements disposed between the inner and outer rings, and a dustproof plate disposed between the inner and outer rings. A connecting flange is formed along the outer edge of the dustproof plate, and a positioning element is disposed on the end face of the connecting flange facing the outer ring. A limiting element is disposed on the edge of the outer ring. Its structure is simple, effectively solving the problem of dust accumulation on the rollers and ensuring stable bearing operation. However, when adding lubricating oil to the above bearing, the lubricating oil needs to be added all at once inside the bearing. During long-term operation, the lubricating oil will gradually evaporate or leak, leading to insufficient lubrication. The bearing needs to be disassembled for lubrication replenishment, thus increasing the management and maintenance costs of the lubricating oil.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] In view of the problems in the related technologies, this utility model proposes a deep groove ball bearing with a lubricating oil return structure to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] Therefore, the specific technical solution adopted by this utility model is as follows:

[0007] A deep groove ball bearing with a lubricating oil return structure includes an outer ring, symmetrically arranged protective plates inside the outer ring, a cage mechanism inside the outer ring and located between the two sets of protective plates, a plurality of rolling balls inside the cage mechanism, and an inner ring inside the protective plates.

[0008] Furthermore, to facilitate the return of lubricating oil and prevent its loss inside and outside the bearing, an oil-retaining sponge stores lubricating oil and gradually releases it during bearing operation. This prevents friction and wear caused by insufficient lubrication, thereby improving the bearing's service life. Positioning grooves are provided on both sides of the bearing's outer ring, with threaded grooves on the inner walls of these grooves. A first sliding groove, which mates with the rolling balls, is provided on the inner wall of the outer ring. A ball is embedded in the center of the inner wall of the first sliding groove, and return ports are provided on both sides of the ball. Several chambers are formed inside the outer ring, each containing an oil-retaining sponge. These chambers are connected to the return ports.

[0009] Furthermore, in order to protect the internal structure of the bearing and effectively prevent external dust or dirt from entering the bearing, thus helping to keep the bearing clean and improve its operating efficiency and stability, the outer side of the protective plate is provided with several positioning blocks that cooperate with the positioning groove, and the positioning blocks are connected to the outer ring of the bearing by positioning bolts.

[0010] Furthermore, in order to balance the force distribution inside the bearing, reduce deformation and wear caused by uneven force, improve the stability of the bearing during high-speed operation, and reduce vibration and noise, the rollers, as auxiliary rolling components, can provide a stable running trajectory for the balls and prevent unstable operation caused by the balls deviating from the track. The cage mechanism includes two sets of annular frames symmetrically arranged inside the outer ring of the bearing, and the two sets of annular frames are connected by fixing bolts. One side of the annular frame has several mounting grooves that mate with the balls, and the other side of the annular frame has several grooves, and several rollers are arranged inside the grooves.

[0011] Furthermore, in order to continuously provide sufficient and uniform lubricating oil to the bearing and reduce friction and wear, the design of the oil filling port makes it more convenient to replenish the lubricating oil. The outer side of the bearing inner ring is provided with a second sliding groove that mates with the rolling ball, and the inner side of the bearing inner ring is provided with several oil storage chambers. The inner wall of the oil storage chambers is provided with several lubrication holes, and the side wall of the bearing inner ring is provided with several oil filling ports that communicate with the oil storage chambers. The oil filling ports are provided with sealing plugs inside.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. This utility model is reasonable and reliable. The bearing outer ring and bearing inner ring form a lubricating oil return structure, which can make the lubricating oil continuously and evenly distributed on the rolling ball, thereby reducing the consumption of lubricating oil, reducing operating and maintenance costs, and thus improving the overall operating efficiency of the equipment.

[0014] 2. By setting the outer ring of the bearing, the lubricating oil can be returned, avoiding the loss of oil inside and outside the bearing. The oil storage sponge can store lubricating oil and gradually release it when the bearing is running, avoiding friction and wear caused by insufficient lubrication and improving the service life of the bearing.

[0015] 3. By setting up a protective plate, the internal structure of the bearing is protected. At the same time, it can effectively prevent external dust or dirt from entering the bearing, which helps to keep the bearing clean and improve the bearing's operating efficiency and stability.

[0016] 4. By setting up a cage mechanism, the force distribution inside the bearing can be balanced, reducing deformation and wear caused by uneven force, improving the stability of the bearing during high-speed operation, reducing vibration and noise. As an auxiliary rolling component, the roller can provide a stable running trajectory for the rolling ball and prevent unstable operation caused by the rolling ball deviating from the track.

[0017] 5. By designing the inner ring of the bearing, sufficient and uniform lubricating oil can be continuously provided to the bearing, reducing friction and wear. The design of the oil filler port makes it more convenient to replenish the lubricating oil. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of a deep groove ball bearing with a lubricating oil return structure according to an embodiment of the present utility model;

[0020] Figure 2 This is a three-dimensional assembly drawing of a deep groove ball bearing with a lubricating oil return structure according to an embodiment of the present utility model;

[0021] Figure 3 This is a cross-sectional view of the outer ring of a deep groove ball bearing with a lubricating oil return structure according to an embodiment of the present invention;

[0022] Figure 4 yes Figure 3 A magnified view of a section at point A in the middle;

[0023] Figure 5 This is a three-dimensional assembly drawing of a deep groove ball bearing cage mechanism with a lubricating oil return structure according to an embodiment of the present utility model;

[0024] Figure 6This is a cross-sectional view of the inner ring of a deep groove ball bearing with a lubricating oil return structure according to an embodiment of the present invention.

[0025] In the picture:

[0026] 1. Bearing outer ring; 101. Locating groove; 102. Threaded groove; 103. First sliding groove; 104. Ball; 105. Return port; 106. Chamber; 107. Oil storage sponge; 2. Protective plate; 201. Locating block; 202. Locating bolt; 3. Cage mechanism; 301. Annular frame; 3011. Mounting groove; 3012. Groove; 3013. Roller; 302. Fixing bolt; 4. Ball; 5. Bearing inner ring; 501. Second sliding groove; 502. Oil reservoir; 503. Lubrication hole; 504. Oil filling port; 505. Sealing plug. Detailed Implementation

[0027] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0028] According to an embodiment of the present invention, a deep groove ball bearing with a lubricating oil return structure is provided.

[0029] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figures 1-6 According to an embodiment of the present invention, a deep groove ball bearing with a lubricating oil return structure includes an outer ring 1, a protective plate 2 symmetrically arranged inside the outer ring 1, a cage mechanism 3 arranged inside the outer ring 1 and located between the two sets of protective plates 2, a plurality of rolling balls 4 arranged inside the cage mechanism 3, and an inner ring 5 arranged inside the protective plate 2.

[0030] In addition, in specific applications, the ball 4 is made of stainless steel, which has excellent corrosion resistance and can remain stable in humid, water-containing or chemically exposed environments.

[0031] With the help of the above-mentioned technical solution of this utility model, this utility model is reasonable and reliable. The outer ring 1 and the inner ring 5 of the bearing form a lubricating oil return structure, which can make the lubricating oil continuously and evenly distributed on the rolling ball 4, thereby reducing the consumption of lubricating oil, reducing operating and maintenance costs, and thus improving the overall operating efficiency of the equipment.

[0032] In one embodiment, for the bearing outer ring 1, positioning grooves 101 are provided on both sides of the bearing outer ring 1, and threaded grooves 102 are provided on the inner wall of the positioning grooves 101; a first sliding groove 103 is provided on the inner wall of the bearing outer ring 1 to cooperate with the ball 4, a ball 104 is embedded in the middle of the inner wall of the first sliding groove 103, and return ports 105 are provided on both sides of the inner wall of the first sliding groove 103 and located on both sides of the ball 104; a plurality of chambers 106 are provided inside the bearing outer ring 1, and an oil-absorbing sponge 107 is provided inside the chambers 106; the chambers 106 are connected to the return ports 105, thereby realizing the return of lubricating oil, avoiding the loss of oil inside and outside the bearing, and the oil-absorbing sponge 107 can store lubricating oil and gradually release lubricating oil when the bearing is running, avoiding friction and wear caused by insufficient lubrication, and improving the service life of the bearing.

[0033] Furthermore, it should be noted that the inner wall of the first groove 103 and the bottom of the ball 104 is set as a liquid outlet. The upper half of the ball 104 is located in the chamber 106, and the lower half of the ball 104 protrudes from the liquid outlet. When the bearing rotates, the ball 4 will lift the lower half of the ball 104 once every time it passes the liquid outlet, so that the ball 104 is temporarily separated from the liquid outlet, thereby achieving the effect of discharging lubricating oil.

[0034] The oil-absorbing sponge 107 is placed in the chamber 106 of the outer ring of the bearing as a storage medium for lubricating oil. It absorbs and stores lubricating oil. During the operation of the bearing, when the balls 104 are lifted, the oil-absorbing sponge releases lubricating oil, and a portion of it flows out from the outlet or return port 105 to lubricate the balls 4.

[0035] In one embodiment, the protective plate 2 has several positioning blocks 201 on its outer side that cooperate with the positioning groove 101, and the positioning blocks 201 are connected to the outer ring 1 of the bearing by positioning bolts 202, thereby protecting the internal structure of the bearing. At the same time, it can effectively prevent external dust or dirt from entering the bearing, which helps to keep the bearing clean and improve the bearing's operating efficiency and stability.

[0036] In one embodiment, the cage mechanism 3 includes two sets of annular frames 301 symmetrically arranged inside the outer ring 1 of the bearing. The two sets of annular frames 301 are connected by fixing bolts 302. One side of the annular frame 301 is provided with several mounting grooves 3011 that cooperate with the rolling balls 4, and the other side of the annular frame 301 is provided with several grooves 3012. Several rollers 3013 are provided inside the grooves 3012, which can balance the force distribution inside the bearing, reduce deformation and wear caused by uneven force, improve the stability of the bearing when running at high speed, and reduce vibration and noise. As an auxiliary rolling component, the rollers can provide a stable running trajectory for the rolling balls and prevent unstable operation caused by the rolling balls 4 deviating from the track.

[0037] In one embodiment, for the bearing inner ring 5, a second sliding groove 501 that mates with the rolling ball 4 is provided on the outer side of the bearing inner ring 5, a plurality of oil storage chambers 502 are provided inside the bearing inner ring 5, a plurality of lubrication holes 503 are provided on the inner wall of the oil storage chambers 502, and a plurality of oil filling ports 504 that communicate with the oil storage chambers 502 are provided on the side wall of the bearing inner ring 5, and a sealing plug 505 is provided inside the oil filling port 504, so as to continuously provide sufficient and uniform lubricating oil to the bearing, reduce friction and wear, and the design of the oil filling port 504 makes it more convenient to replenish the lubricating oil.

[0038] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0039] In practical applications, during bearing operation, the oil reservoir 502 stores lubricating oil, which flows to the surface of the ball 4 through the lubrication hole 503, reducing friction and wear of the ball 4 during operation and extending its service life. After a period of operation, the lubricating oil enters the oil reservoir 502 through the return port 105 and is absorbed by the oil storage sponge 107. When the ball 4 rotates, it slightly lifts the ball 104, and then the lubricating fluid in the oil storage sponge 107 flows out and contacts the ball 4, thus lubricating the ball 4. At the same time, during the rotation of the ball 4 and the annular frame 301, the outer wall of the roller 3013 is connected to the side wall of the protective plate. The protective plate 2 can laterally limit the annular frame 301, preventing the ball 4 from shifting during operation and ensuring the stability of the bearing during high-speed operation.

[0040] In summary, by utilizing the above-mentioned technical solution of this utility model, which is both reasonable and reliable, the bearing outer ring 1 and bearing inner ring 5 constitute a lubricating oil return structure, enabling the lubricating oil to be continuously and evenly distributed on the rolling balls 4. This reduces lubricating oil consumption, lowers operating and maintenance costs, and thus improves the overall operating efficiency of the equipment. By setting the bearing outer ring 1, lubricating oil return is achieved, preventing oil loss inside and outside the bearing. The oil-absorbing sponge 107 stores lubricating oil and gradually releases it during bearing operation, preventing friction and wear caused by insufficient lubrication and extending the bearing's service life. The protective plate 2 protects the internal structure of the bearing and effectively prevents external dust or dirt from entering, helping to maintain the cleanliness of the bearing's interior and improving its operating efficiency and stability. The cage mechanism 3 balances the force distribution inside the bearing, reducing deformation and wear caused by uneven force, improving the bearing's stability during high-speed operation, and reducing vibration and noise. The rollers, as auxiliary rolling components, provide a stable running trajectory for the rolling balls, preventing instability caused by the rolling balls 4 deviating from their tracks. By setting the inner ring 5 of the bearing, sufficient and uniform lubricating oil can be continuously provided to the bearing, reducing friction and wear. The design of the oil filler port 504 makes it more convenient to replenish the lubricating oil.

[0041] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A deep groove ball bearing having a lubricating oil return structure, characterized by, The application relates to a bearing outer ring (1), the inside of the bearing outer ring (1) is symmetrically provided with a protection plate (2), the inside of the bearing outer ring (1) and between two groups of the protection plates (2) is provided with a retainer mechanism (3), the inside of the retainer mechanism (3) is provided with a plurality of rolling balls (4), the inside of the protection plate (2) is provided with a bearing inner ring (5); Both sides of the bearing outer ring (1) are provided with positioning grooves (101), and the inner walls of the positioning grooves (101) are provided with threaded grooves (102); The inner wall of the bearing outer ring (1) is provided with a first sliding groove (103) matched with the rolling ball (4), the inner wall of the first sliding groove (103) is embedded with a rolling ball (104) in the middle, and the inner wall of the first sliding groove (103) and on both sides of the rolling ball (104) are provided with backflow openings (105); The inside of the bearing outer ring (1) is provided with a plurality of cavities (106), and the inside of the cavity (106) is provided with an oil storage sponge (107); The cavity (106) is communicated with the backflow opening (105); The retainer mechanism (3) comprises two groups of annular frame bodies (301) symmetrically arranged in the inside of the bearing outer ring (1), and the two groups of annular frame bodies (301) are connected through fixing bolts (302); One side of the annular frame body (301) is provided with a plurality of installation grooves (3011) matched with the rolling ball (4), the other side of the annular frame body (301) is provided with a plurality of grooves (3012), and the inside of the groove (3012) is provided with a plurality of rolling shafts (3013).

2. A deep groove ball bearing with a lubricating oil return structure according to claim 1, characterized in that, The outside of the protection plate (2) is provided with a plurality of positioning blocks (201) matched with the positioning grooves (101), and the positioning blocks (201) and the bearing outer ring (1) are connected through positioning bolts (202).

3. The deep groove ball bearing with a lubricating oil return structure according to claim 1, characterized in that, The outside of the bearing inner ring (5) is provided with a second sliding groove (501) matched with the rolling ball (4), the inside of the bearing inner ring (5) is provided with a plurality of oil storage cavities (502), the inner wall of the oil storage cavity (502) is provided with a plurality of lubricating holes (503), the side wall of the bearing inner ring (5) is provided with a plurality of oil injection openings (504) communicated with the oil storage cavities (502), and the inside of the oil injection opening (504) is provided with a sealing plug (505).

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