Oil injection lubrication type bearing

Abstract

The utility model belongs to the field of bearings, in particular relates to an oil injection lubrication type bearing, and provides the following scheme aiming at the problems that lubricating oil cannot be conveniently and rapidly supplemented without dismounting the existing bearing, so that the time is consumed, the cost is increased, and meanwhile, continuous and efficient operation of equipment is not facilitated. The bearing comprises a bearing outer ring, a bearing inner ring, a retainer, a rolling body and two sealing covers, the inner side of the bearing outer ring and the outer side of the bearing inner ring are each provided with a groove used for rolling of the rolling body, and the two sealing covers are arranged on the two sides of the bearing outer ring and the two sides of the bearing inner ring; and the oil injection assembly is arranged on the bearing inner ring and used for injecting oil into the mounted bearing. Through the arrangement of the oil injection assembly, after the bearing is installed and in the using process, lubricating oil can be easily supplemented into the bearing, the whole bearing does not need to be disassembled, the maintenance time and cost are saved, and the operation efficiency of equipment is improved.

Description

Technical Field

[0001] This utility model relates to the field of bearing technology, and in particular to an oil-lubricated bearing. Background Technology

[0002] Oil-lubricated bearings are a type of bearing in which lubricating oil is injected into the bearing through an oiler or other means to achieve bearing lubrication and reduce friction. This lubrication method has a significant impact on the bearing's operating performance and lifespan.

[0003] Currently, existing oil-lubricated bearings often require disassembly during maintenance, making it impossible to easily replenish lubricating oil without disassembly. This results in both time-consuming and costly operations, and is also detrimental to the continuous and efficient operation of the equipment. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies, such as the inability to conveniently replenish lubricating oil without disassembly, which leads to time-consuming and costly operations and hinders the continuous and efficient operation of equipment. Therefore, this invention proposes an oil-lubricated bearing.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An oil-lubricated bearing, comprising:

[0007] The bearing comprises an outer ring, an inner ring, a cage, rolling elements, and a sealing cap. Grooves for rolling elements are provided on the inner side of the outer ring and the outer side of the inner ring.

[0008] The lubrication assembly is located on the inner ring of the bearing and is used to lubricate the bearing after installation.

[0009] In one possible design, the oil injection assembly includes four fan-shaped flared holes on one side of the bearing inner ring. Each of the four flared holes is threaded with a countersunk bolt. A sealing ring is fitted on the outside of each countersunk bolt. A cross-shaped groove is formed on one side of each countersunk bolt. The bearing inner ring is located inside the groove and has four oil outlet holes in a fan shape. Each of the four oil outlet holes is connected to one of the four flared holes.

[0010] In one possible design, the outer ring of the cage has a plurality of evenly distributed placement slots, and a plurality of rolling elements are provided, each of which is rotatably disposed within one of the plurality of placement slots of the cage.

[0011] In one possible design, the outer ring of the cage has oil passages.

[0012] In one possible design, the outer rings of the cage and rolling elements are located within a groove in the outer ring of the bearing, and the inner rings of the cage and rolling elements are located within a groove in the inner ring of the bearing.

[0013] In one possible design, two sealing covers are provided, one on each side of the outer ring and the other on the inner ring of the bearing, respectively covering the gap between the outer ring and the inner ring.

[0014] In this application, upon initial use, all components of the bearing are first cleaned to ensure they are free of impurities and oil. Simultaneously, the mating surfaces of each component are checked for smoothness to ensure good sealing and lubrication. Then, multiple rolling elements are placed one by one into the cage's placement slot, ensuring the rolling elements can rotate freely without falling off. At the same time, the oil passages of the cage are ensured to be unobstructed and free from obvious damage or foreign matter accumulation to allow for lubricant flow. Next, the assembly containing the rolling elements and cage is placed into the groove of the bearing's outer ring, ensuring that the inner rings of the cage and rolling elements are also located within the grooves of the bearing's inner ring, achieving precise alignment of the inner and outer rings. Sealing caps are installed on both sides of the bearing's outer and inner rings, ensuring the sealing caps are embedded in the gap to prevent lubricant leakage from the gap between the bearing's outer and inner rings.

[0015] Next, select a suitable lubricant for the bearing and ensure it is clean and uncontaminated. Then, inject the lubricant through the flared hole on the inner ring of the bearing. First, use a special tool (such as a screwdriver) to loosen the countersunk bolt and inject an appropriate amount of lubricant into the bearing through the flared hole. Since the flared hole is connected to the oil outlet, the lubricant can enter the rolling elements inside the bearing. The lubricant injected into the bearing flows into the oil passage through the gap between the cage and the rolling elements, and then is evenly distributed to each rolling element inside the bearing for lubrication. After the lubrication is completed, quickly tighten the countersunk bolt and ensure that the sealing ring is intact to prevent the lubricant from leaking out. Then, gently rotate the bearing to check whether the rolling elements run smoothly and whether there is any abnormal noise or vibration.

[0016] After the bearing is installed on the mechanical equipment and has been used for a period of time, when it is necessary to add lubricating oil to the inside of the bearing, you can use a special tool (such as a screwdriver) to unscrew the countersunk bolts and then inject an appropriate amount of lubricating oil into the bearing through the flared hole. There is no need to disassemble the bearing to add oil.

[0017] This utility model has the following beneficial effects:

[0018] This invention, through the setting of the oil injection component, allows for easy replenishment of lubricating oil inside the bearing after installation and use. This can be achieved by using a special tool (such as a screwdriver) to unscrew the countersunk bolts and then injecting an appropriate amount of lubricating oil into the bearing through the flared hole. This eliminates the need to disassemble the bearing, making it easy to replenish the lubricating oil inside the bearing, thereby saving maintenance time and costs and improving the operating efficiency of the equipment.

[0019] In this invention, by setting up oil outlet holes and oil channels, lubricating oil is injected through the horn hole and then dispersed through the oil channels, so that it can be evenly distributed on each rolling element, achieving comprehensive and effective lubrication, reducing friction and wear, and extending the service life of the bearing.

[0020] This invention, through the design of the oil injection component, allows for easy replenishment of lubricating oil inside the bearing after installation and during use, without the need to disassemble the entire bearing. This saves maintenance time and costs and improves the operating efficiency of the equipment. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall main structure of an oil-lubricated bearing proposed in this utility model;

[0022] Figure 2 This is a schematic diagram of the overall side cross-sectional structure of an oil-lubricated bearing proposed in this utility model;

[0023] Figure 3 This is a schematic diagram of the overall disassembled structure of an oil-lubricated bearing proposed in this utility model;

[0024] Figure 4 This is an enlarged structural diagram of part A of an oil-lubricated bearing proposed in this utility model.

[0025] In the diagram: 1. Bearing outer ring; 2. Bearing inner ring; 3. Cage; 4. Rolling elements; 5. Sealing cap; 6. Flared hole; 7. Countersunk bolt; 8. Sealing ring; 9. Oil outlet; 10. Oil passage. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Example

[0027] Reference Figure 1-4 A bearing comprising:

[0028] The inner ring of the outer ring 1 of the bearing is machined with a groove of a specific shape. The contour and size of the groove are designed to accommodate and maintain the rolling path of the rolling element 4. The precision and smoothness of the groove ensure the smoothness and low friction of the rolling element 4 during operation.

[0029] The inner ring 2 of the bearing is located inside the outer ring 1 of the bearing. Its outer ring is also machined with a groove corresponding to the outer ring 1 of the bearing for rolling contact with the rolling element 4. In addition, the inner ring 2 of the bearing is designed with an installation position for the oil injection component on one side.

[0030] The cage 3 is located between the inner ring 2 and the outer ring 1 of the bearing. Multiple placement grooves are evenly distributed on its outer ring to fix and support the rolling elements 4. The design of the cage 3 not only ensures the even distribution of the rolling elements 4, but also improves the overall stability and load-bearing capacity of the bearing. At the same time, the outer ring of the cage 3 is also machined with oil passages 10, which will guide the flow of lubricating oil during the subsequent oil injection process.

[0031] The rolling elements 4 are selected according to the bearing's load requirements and operating environment. Suitable rolling elements 4 (such as balls, rollers, etc.) are selected and installed in the placement slots of the cage 3. The number and size of the rolling elements 4 need to be designed according to the specific specifications of the bearing to ensure the bearing's operating performance and life.

[0032] The lubrication assembly includes four fan-shaped flared holes 6 on one side of the bearing inner ring 2. Each flared hole 6 is threaded with a countersunk bolt 7. A sealing ring 8 is fitted on the outside of the countersunk bolt 7 to enhance the sealing performance and prevent lubricating oil leakage. A cross-shaped groove is also provided on one side of the countersunk bolt 7 to facilitate tightening or loosening operations using tools. In addition, four oil outlet holes 9 are correspondingly provided in the groove of the bearing inner ring 2. These oil outlet holes 9 are connected to the flared holes 6 and are used to introduce lubricating oil into the bearing.

[0033] This application can be used in the field of oil-lubricated bearing technology, or in other fields applicable to this application. Example

[0034] Based on Embodiment 1, Embodiment 2 further includes: an oil-lubricated bearing, which is applied to the field of oil-lubricated bearing technology. Two sealing covers 5 are provided, and the two sealing covers 5 are respectively installed in the gap between the outer ring 1 and the inner ring 2 of the bearing. The sealing covers 5 are designed to prevent external impurities from entering the bearing and reduce the leakage of lubricating oil, thereby protecting the cleanliness and lubrication performance of the bearing.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An oil-lubricated bearing, characterized in that, include: The bearing consists of an outer ring (1), an inner ring (2), a cage (3), rolling elements (4), and a sealing cap (5). The inner ring of the outer ring (1) and the outer ring of the inner ring (2) are both provided with grooves for the rolling elements (4) to roll. The oil injection assembly is installed on the inner ring (2) of the bearing and is used to inject oil into the bearing after installation.

2. The oil-lubricated bearing according to claim 1, characterized in that, The oil injection assembly includes four fan-shaped flared holes (6) on one side of the bearing inner ring (2). Each of the four flared holes (6) is threaded with a countersunk bolt (7). A sealing ring (8) is fitted on the outside of the countersunk bolt (7). A cross-shaped groove is provided on one side of the countersunk bolt (7). The bearing inner ring (2) is located inside the groove and has four oil outlet holes (9) in a fan shape. The four oil outlet holes (9) are respectively connected to the four flared holes (6).

3. The oil-lubricated bearing according to claim 1, characterized in that, The outer ring of the cage (3) is provided with a plurality of evenly distributed placement slots, and a plurality of rolling elements (4) are provided, and the plurality of rolling elements (4) are respectively rotatably disposed in the plurality of placement slots of the cage (3).

4. The oil-lubricated bearing according to claim 3, characterized in that, The outer ring of the cage (3) is provided with an oil passage (10).

5. The oil-lubricated bearing according to claim 1, characterized in that, The outer rings of the cage (3) and the rolling element (4) are located in the groove of the outer ring (1) of the bearing, and the inner rings of the cage (3) and the rolling element (4) are located in the groove of the inner ring (2) of the bearing.

6. The oil-lubricated bearing according to claim 1, characterized in that, Two sealing caps (5) are provided. The two sealing caps (5) are provided on both sides of the bearing outer ring (1) and the bearing inner ring (2), and respectively cover the gap between the bearing outer ring (1) and the bearing inner ring (2).

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