Self-lubricating bearing

Abstract

The utility model provides a self-lubricating bearing, which comprises a bearing inner ring, a ball, a ball retainer, a bearing outer ring and a dust cover mounting groove, the bearing inner ring and the bearing outer ring are concentrically arranged, the bearing inner ring is positioned inside the bearing outer ring, and the ball is mounted in a gap between the bearing inner ring and the bearing outer ring in a rolling manner; the ball retainer is arranged on the outer side of the ball; the dustproof cover mounting groove is formed in the outer side of the bearing outer ring; due to the arrangement of the bearing outer ring and the internal substructure of the bearing outer ring, the balls can be continuously and slowly coated with lubricating oil, and oil outlet holes cannot be blocked by external impurities.

Description

Technical Field

[0001] This utility model relates to the field of bearing technology, and in particular to a self-lubricating bearing. Background Technology

[0002] Self-lubricating bearings are bearings with an internal lubrication system that automatically releases lubricating oil during operation, reducing or eliminating the need for external lubrication. This design makes self-lubricating bearings easier to maintain, reducing maintenance frequency and costs, while effectively reducing wear and overheating, and extending service life. Furthermore, many self-lubricating bearings have excellent sealing properties, preventing the intrusion of dust and contaminants and ensuring lubrication effectiveness. They are widely used in various fields such as automotive, aerospace, and industrial equipment.

[0003] Traditional lubrication methods mainly rely on the periodic addition of external lubricating oil, but this method has several significant drawbacks:

[0004] High maintenance costs: Traditional lubrication systems require regular inspection and oil replenishment, which not only increases the complexity of maintenance but also raises the operating costs of the equipment.

[0005] Uneven lubrication: Uneven distribution of external lubricating oil may lead to insufficient lubrication in some parts, increasing the risk of wear and affecting the overall performance of the equipment.

[0006] Therefore, it is essential to invent a self-lubricating bearing. Utility Model Content

[0007] To address the aforementioned technical problems, this utility model provides a self-lubricating bearing, solving the issues of existing self-lubricating bearings still failing to continuously and slowly apply lubricating oil to the balls, and the oil outlet holes being easily clogged by external impurities. A self-lubricating bearing includes an inner bearing ring, balls, a ball cage, an outer bearing ring, and a dust cover mounting groove, wherein: the inner and outer bearing rings are concentrically arranged, with the inner ring located inside the outer ring; the balls are rolled within the gap between the inner and outer bearing rings; the ball cage is located outside the balls; and the dust cover mounting groove is located outside the outer ring.

[0008] The bearing outer ring includes an inner ring, an oil outlet, an oil-permeable core, a middle ring, an oil reservoir, an outer ring, an oil inlet, and a sealing bolt. The inner ring is located outside the inner ring, and the oil outlet is located inside the inner ring. The oil-permeable core fills the inside of the oil outlet, and the middle ring is fixedly installed outside the inner ring. The oil reservoir is located inside the middle ring. The outer ring is fixedly installed outside the middle ring, and the oil inlet is located inside the outer ring. The sealing bolt is rotatably installed inside the oil inlet.

[0009] The oil storage tank contains a pressure ring, and a sealing ring is bonded to the inner wall of the pressure ring.

[0010] The oil reservoir inside the outer ring of the bearing is an annular space, filled with lubricating oil through an oil inlet, with the oil filling only 1 / 2 of the reservoir. The oil outlet uses two sets of inverted "Y"-shaped channels, and the oil-permeable cotton core is made of cotton rope, completely sealing the oil outlet. This serves the following purposes: ① Structural support: The outer ring provides support for the overall structure, keeping the inner ring and balls concentric and ensuring the stability and load capacity of the bearing; ② Lubricating oil storage: The oil reservoir inside the outer ring stores lubricating oil, which can be injected through the oil inlet and sealed with a sealing bolt; ③ Oil distribution: The oil outlet acts as an oil distribution point, allowing lubricating oil to be supplied to the balls through the oil-permeable cotton core, thereby reducing friction.

[0011] The pressure ring and the sealing ring together form a ring structure, and the overall thickness of the pressure ring and the sealing ring is 1 / 2 of the depth of the oil reservoir. Under the action of gravity, the pressure ring and the sealing ring are always pressed downwards. When the sealing ring is at its highest point in the oil outlet, the lubricating oil on its surface will flow into the oil outlet. The downward pressure of the pressure ring causes the sealing ring to slightly sink into the oil outlet, increasing the pressure inside the oil outlet and slightly squeezing the lubricating oil outwards. This has the following functions: ① Pressure regulation: [Further details about the pressure regulation are needed for accurate translation.] The pressure ring continuously applies downward pressure under gravity, ensuring that the sealing ring is always in close contact with the oil outlet, thereby maintaining an effective supply of lubricating oil; ② Lubricating oil supply: When the sealing ring rotates to the top of the oil outlet, the lubricating oil adhering to its surface will flow into the oil outlet. Through the downward pressure of the lower pressure ring, the oil flows out and is coated on the balls, reducing friction; ③ Dynamic adjustment: During the operation of the bearing, the lower pressure ring and the sealing ring can be dynamically adjusted to adapt to different speeds and load conditions, ensuring that the lubrication effect remains stable.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The outer ring of the bearing in this utility model has the following functions: ① Structural support: The outer ring provides support for the overall structure, keeping the inner ring and balls concentric and ensuring the stability and load capacity of the bearing; ② Lubricating oil storage: The oil reservoir designed inside the outer ring can store lubricating oil, which can be injected through the oil inlet and sealed by the sealing bolt; ③ Oil distribution: The oil outlet can play the role of oil distribution, allowing lubricating oil to be supplied to the balls through the oil-permeable cotton core, thereby reducing friction.

[0014] 2. The pressure ring and sealing ring of this utility model have the following functions: ① Pressure regulation:

[0015] The pressure ring continuously applies downward pressure under gravity, ensuring that the sealing ring remains in close contact with the oil outlet, thus maintaining an effective supply of lubricating oil; ② Lubricating oil supply: When the sealing ring rotates to the top of the oil outlet, the lubricating oil adhering to its surface flows into the oil outlet. The downward pressure of the pressure ring causes the oil to flow out and coat the balls, reducing friction; ③

[0016] Dynamic adjustment: During bearing operation, the lower pressure ring and sealing ring can be dynamically adjusted to adapt to different speeds and load conditions, ensuring that the lubrication effect remains stable. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a cross-sectional schematic diagram of the outer ring of the bearing of this utility model.

[0019] Figure 3 This is a complete schematic diagram of the outer ring of the bearing of this utility model.

[0020] In the picture:

[0021] 1. Inner ring of bearing, 2. Ball, 3. Ball cage, 4. Outer ring of bearing, 41. Inner ring of outer ring, 42. Oil outlet, 43. Oil seepage cotton core, 44. Middle ring of outer ring, 45. Oil reservoir, 46. Outer ring of outer ring, 47. Oil inlet, 48. Sealing bolt, 49. Lower pressure ring, 40. Sealing rubber ring, 5. Dust cover mounting groove. Detailed Implementation

[0022] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0023] As attached Figure 1 To be continued Figure 3 As shown.

[0024] This utility model provides a self-lubricating bearing, comprising an inner bearing ring 1, balls 2, a ball cage 3, an outer bearing ring 4, and a dust cover mounting groove 5, wherein: the inner bearing ring 1 and the outer bearing ring 4 are concentrically arranged, and the inner bearing ring 1 is located inside the outer bearing ring 4; the balls 2 are rolled and installed in the gap between the inner bearing ring 1 and the outer bearing ring 4; the ball cage 3 is located on the outside of the balls 2; and the dust cover mounting groove 5 is located on the outside of the outer bearing ring 4.

[0025] The bearing outer ring 4 includes an inner ring 41, an oil outlet 42, an oil-permeable cotton core 43, a middle ring 44, an oil reservoir 45, an outer ring 46, an oil inlet 47, and a sealing bolt 48. The inner ring 41 is located outside the inner ring 1, and the oil outlet 42 is opened inside the inner ring 41. The oil-permeable cotton core 43 fills the inside of the oil outlet 42. The middle ring 44 is fixedly installed outside the inner ring 41, and the oil reservoir 45 is located inside the middle ring 44. The outer ring 46 is fixedly installed outside the middle ring 44, and the oil inlet 47 is opened inside the outer ring 46. The sealing bolt 48 is rotatably installed inside the oil inlet 47.

[0026] Inside the oil storage tank 45, there is a pressure ring 49, and a sealing ring 40 is bonded and fixed to the inner wall of the pressure ring 49.

[0027] The oil reservoir 45 inside the outer ring 4 of the bearing is an annular space, and lubricating oil is injected into it through the oil inlet 47. The lubricating oil inside the oil reservoir 45 only occupies 1 / 2 of it. The oil outlet 42 adopts two sets of inverted "Y" shaped channels, and the oil seepage cotton core 43 is made of cotton rope, which completely blocks the oil outlet 42.

[0028] The pressure ring 49 and the sealing ring 40 together form a ring structure, and the overall thickness of the pressure ring 49 and the sealing ring 40 is 1 / 2 of the depth of the oil reservoir 45. The pressure ring 49 and the sealing ring 40 are always pressed downward under the action of gravity. When the sealing ring 40 is at the top of the oil outlet 42, the lubricating oil on its surface will flow into the oil outlet 42. The pressure of the pressure ring 49 will cause the sealing ring 40 to sink slightly into the oil outlet 42, which will increase the pressure inside the oil outlet 42 and squeeze the lubricating oil inside the oil outlet 42 outward slightly.

[0029] Compared with existing technologies, this equipment has the following main advantages:

[0030] 1. Self-lubricating function: Through the design of the oil reservoir 45 and the oil outlet 42, it can continuously provide lubricating oil, reduce friction and wear, and extend service life.

[0031] 2. Superior sealing performance: The combination of the pressure ring 49 and the sealing ring 40 provides a good sealing effect, effectively preventing lubricating oil leakage and external contaminant intrusion, and protecting internal components.

[0032] 3. Stable lubricant supply: The design enables the lubricant to be automatically supplied when needed through gravity and pressure regulation, ensuring a smooth lubrication process at all times.

[0033] 4. Easy to maintain: The structure of the outer ring 4 makes changing the lubricating oil and maintenance simpler, reducing maintenance costs and time.

[0034] 5. High adaptability: It can automatically adjust the lubrication effect under different load and speed conditions, which improves the working efficiency and reliability of the equipment.

[0035] 6. Reduce noise and vibration: Good lubrication can reduce noise and vibration generated by friction and improve the smoothness of equipment operation.

[0036] These advantages make this equipment superior to traditional self-lubricating bearings in terms of performance, maintenance, and service life.

[0037] Working principle

[0038] The working principle of this equipment mainly revolves around the design of self-lubricating bearings, achieving lubrication and support functions through the following key steps:

[0039] 1. Basic structure:

[0040] The inner ring 1 and the outer ring 4 of the bearing are concentrically arranged, and the balls 2 are installed in the gap between them, forming a basic unit for support and rotation.

[0041] The ball cage 3 ensures that the balls 2 remain stable during rotation and prevents them from falling off the track.

[0042] 3. Storage and supply of lubricating oil:

[0043] The outer ring 4 has an oil reservoir 45 inside, and lubricating oil is injected through the oil inlet 47. The oil reservoir 45 is designed as an annular space, and the internal liquid level is maintained at 1 / 2 to ensure sufficient oil supply.

[0044] The oil outlet 42 and the oil-permeable cotton core 43 work together to provide lubricating oil to the ball 2 through the oil outlet 42.

[0045] 3. Oil flow mechanism:

[0046] During equipment operation, gravity causes the pressure ring 49 to always apply downward pressure, ensuring that the sealing ring 40 is in close contact with the oil outlet 42.

[0047] When the sealing ring 40 rotates to the top of the oil outlet 42, the lubricating oil adhering to its surface will flow into the oil outlet 42, and the oil will be squeezed outward by the downward pressure of the pressure ring 49.

[0048] 4. Pressure regulation and sealing:

[0049] The pressure ring 49 increases the internal pressure of the oil outlet 42, ensuring that the lubricating oil can be stably and evenly coated on the ball 2, reducing friction and wear.

[0050] The sealing ring 40 effectively prevents lubricating oil leakage, protects the bearing interior, reduces the intrusion of external contaminants, and improves the reliability and service life of the equipment.

[0051] 5. Dustproof function:

[0052] The dust cover mounting groove 5 is located on the outside of the outer ring 4, where a bearing dust cover can be installed. This helps prevent dust and dirt from entering the bearing, thereby further extending the bearing's service life.

[0053] In summary, this equipment, through its efficient self-lubricating mechanism, superior sealing performance, and reliable structural design, ensures continuous lubrication during operation, thereby improving the equipment's performance and service life.

[0054] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. A self-lubricating bearing, characterized by: The application relates to a bearing, which comprises a bearing inner ring (1), balls (2), a ball retainer (3), a bearing outer ring (4) and a dust cover mounting groove (5), wherein the bearing inner ring (1) and the bearing outer ring (4) are coaxially arranged, the bearing inner ring (1) is located inside the bearing outer ring (4), the balls (2) are rollingly arranged in the gap between the bearing inner ring (1) and the bearing outer ring (4), the ball retainer (3) is arranged outside the balls (2), and the dust cover mounting groove (5) is arranged outside the bearing outer ring (4).

2. A self-lubricating bearing as claimed in claim 1, characterized in that: The bearing outer ring (4) comprises an outer ring inner ring (41), an oil outlet hole (42), an oil permeation cotton core (43), an outer ring middle ring (44), an oil storage bin (45), an outer ring outer ring (46), an oil inlet hole (47) and a sealing bolt (48), the outer ring inner ring (41) is located outside the bearing inner ring (1), the oil outlet hole (42) is arranged in the inner ring (41), the oil permeation cotton core (43) is filled in the oil outlet hole (42), the outer ring middle ring (44) is fixedly arranged outside the outer ring inner ring (41), the oil storage bin (45) is arranged in the outer ring middle ring (44), the outer ring outer ring (46) is fixedly arranged outside the outer ring middle ring (44), the oil inlet hole (47) is arranged in the outer ring outer ring (46), and the sealing bolt (48) is rotatably arranged in the oil inlet hole (47).

3. A self-lubricating bearing as claimed in claim 2, characterized in that: A pressing ring (49) is arranged in the oil storage bin (45), and a sealing rubber ring (40) is fixedly arranged on the inner wall of the pressing ring (49).

4. A self-lubricating bearing as claimed in claim 2, characterized in that: The oil storage bin (45) is an annular space, lubricating oil is injected into the oil storage bin (45) through the oil inlet hole (47), and the lubricating oil in the oil storage bin (45) only accounts for 1 / 2 of the oil storage bin (45), the oil outlet hole (42) is provided with two groups of inverted "Y"-shaped channels, the oil permeation cotton core (43) is a cotton rope, and the oil outlet hole (42) is completely blocked.

5. A self-lubricating bearing as claimed in claim 3, characterized in that: The pressing ring (49) and the sealing rubber ring (40) form an annular structure, the thickness of the pressing ring (49) and the sealing rubber ring (40) is 1 / 2 of the depth of the oil storage bin (45), the pressing ring (49) and the sealing rubber ring (40) are always pressed downward under the action of gravity, when the sealing rubber ring (40) rotates to the uppermost position of the oil outlet hole (42), the lubricating oil adhered to the surface of the sealing rubber ring (40) flows into the oil outlet hole (42), the sealing rubber ring (40) slightly sinks into the oil outlet hole (42) under the pressing of the pressing ring (49), the pressure in the oil outlet hole (42) is increased, and the lubricating oil in the oil outlet hole (42) is slightly extruded outward.

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