Bearing box bearing lubrication assembly

Abstract

The utility model relates to the technical field of mechanical engineering, and discloses a bearing box bearing lubrication assembly which comprises a bearing box shell, an oil inlet nozzle is fixedly connected to the surface of the bearing box shell, an oil inlet pipe is fixedly connected to the inner diameter of the oil inlet nozzle, and bearing check rings are fixedly connected to the left end and the right end of the oil inlet pipe. The left end and the right end of the oil inlet pipe penetrate through and extend into bearing check rings, bearing seats are fixedly connected to the opposite sides of the two bearing check rings, bearings without end covers are fixedly connected to the inner diameters of the two bearing seats, and bearing covers are arranged on the opposite sides of the two bearings without the end covers. In the utility model, lubricating oil enters the inner ring of the bearing retainer ring through the oil inlet pipe, part of the lubricating oil is sprayed on the cylindrical roller at the upper part of the end-cap-free bearing, and part of the lubricating oil flows to the cylindrical roller at the bottom and then enters the cavity formed by the bearing cap and the sleeve, so that the bearing can be fully lubricated and take away heat when the main shaft runs at a high speed.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical engineering, in particular to a bearing box bearing lubrication component. Background Art

[0002] In the modern machinery industry, the bearing box is a key component used to accommodate and support bearings. It provides a stable installation environment for the bearings, ensuring that the bearings can operate normally and withstand loads from shafts and other components. As an important component for supporting and fixing bearings, the performance and reliability of the bearing box play a key role in the normal operation of the entire mechanical equipment. Good lubrication of the bearings is a key factor in ensuring the normal operation of the bearing box, extending the service life of the bearings, reducing energy consumption and reducing failures.

[0003] The bearings in the sealed bearing box are usually lubricated with thin oil. If it is only lubricated by contact immersion, the lubricating oil is poured into the bearing box shell and deposited at the bottom. When the bearing rollers rotate to the bottom of the bearing box, they are lubricated with the lubricating oil. However, when the bearings are running at high intensity, this lubrication method is not sufficient, and the cooling effect is poor, which will damage the bearings. Utility Model Content

[0004] In order to make up for the above deficiencies, the utility model provides a bearing box bearing lubrication assembly, which aims to improve the problems of lubricating oil deposition, insufficient lubrication and bearing damage caused by existing lubrication methods.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a bearing box bearing lubrication assembly, comprising a bearing box shell, an oil inlet nozzle fixedly connected to the surface of the bearing box shell, an oil inlet pipe fixedly connected to the inner diameter of the oil inlet nozzle, bearing retaining rings fixedly connected to the left and right ends of the oil inlet pipe, and the left and right ends of the oil inlet pipe pass through and extend into the interior of the bearing retaining rings, bearing seats fixedly connected to opposite sides of the two bearing retaining rings, bearings without end covers fixedly connected to the inner diameters of the two bearing seats, bearing covers are provided on opposite sides of the two bearings without end covers, and the two bearing covers are fixedly connected to adjacent bearing seats, labyrinth seals are fixedly connected to the opposite sides of the two bearing covers, sleeves are provided on the inner diameters of the two labyrinth seals, a main shaft is fixedly connected between the inner diameters of the two bearings without end covers, and a recovery assembly is provided between the two bearing seats, and the recovery assembly is used to recover lubricating oil.

[0006] Preferably, the recovery component includes an oil outlet connector, which is fixedly connected to the bearing box housing. The oil outlet connector passes through and extends to the inner wall of the bearing box housing. A cover plate is provided at the bottom of the oil outlet connector, and the cover plate and the oil outlet connector are fixedly connected by screws.

[0007] Preferably, the bottom of the bearing cover is provided with axial and radial oil outlet holes, respectively, and the two are interconnected.

[0008] Preferably, an oil inlet hole is provided on the upper portion of the inner ring of the bearing retaining ring, one end of the oil inlet hole is connected to the oil inlet pipe, and the other end of the oil inlet hole is connected to the inner ring.

[0009] Preferably, the inner ring of the bearing retaining ring is a conical structure.

[0010] Preferably, the bearing retaining ring has a larger diameter on the side close to the bearing without end cover and is larger than the inner diameter of the outer ring of the bearing without end cover, and the bearing retaining ring has a smaller diameter on the side away from the bearing without end cover and is smaller than the inner diameter of the outer ring of the bearing without end cover.

[0011] Preferably, the sleeve is sleeved on the main shaft, and the sleeve is axially connected to the bearing without end cover.

[0012] Preferably, the labyrinth seal is fixed on the outside of the bearing cover, and the inner ring of the labyrinth seal is sealed to the sleeve.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, lubricating oil enters the inner ring of the bearing retaining ring through the oil inlet pipe, part of which is sprayed on the upper cylindrical roller of the bearing without end cover, and part flows to the bottom cylindrical roller. When the main shaft runs at high speed, the other part of the lubricating oil flows into the chamber between the bearing cover and the labyrinth seal through the gap between the bearing cover and the sleeve, so that the bearing can be fully lubricated during operation, and heat is taken away, thereby extending the service life of the bearing and ensuring long-term safe operation. It solves the problems of lubricating oil deposition, insufficient lubrication and bearing damage caused by existing lubrication methods.

[0015] 2. In the utility model, the lubricating oil supplied by the lubricating oil station enters the inner ring of the bearing retaining ring through the oil inlet pipe inside the bearing box, and then flows back to the lower part of the bearing box shell through the oil hole at the bottom of the bearing cover after lubrication, and flows back to the lubricating oil station through the oil outlet connector, thereby realizing the recycling of the lubricating oil and solving the problems of accumulation of lubricating oil in the bearing box and waste of lubricating oil in the existing bearing box. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a main diagram of a bearing box bearing lubrication assembly proposed by the present invention;

[0017] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 This is a schematic diagram of a bearing seat of a bearing box bearing lubrication assembly proposed by the present invention;

[0019] Figure 4The utility model provides a cross-sectional schematic diagram of a bearing seat of a bearing box bearing lubrication assembly.

[0020] Legend:

[0021] 1. Bearing box housing; 2. Bearing cover; 3. Bearing seat; 4. Bearing retaining ring; 5. Labyrinth seal; 6. Sleeve; 7. Bearing without end cover; 8. Spindle; 9. Oil inlet pipe; 10. Oil outlet connector; 11. Cover plate; 12. Oil inlet nozzle. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings of the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Reference Figure 1-Figure 4 , the utility model provides an embodiment: a bearing box bearing lubrication assembly, including a bearing box shell 1, an oil inlet nozzle 12 is fixedly connected to the surface of the bearing box shell 1, the inner diameter of the oil inlet nozzle 12 is fixedly connected to an oil inlet pipe 9, the left and right ends of the oil inlet pipe 9 are fixedly connected to bearing retaining rings 4, the left and right ends of the oil inlet pipe 9 pass through and extend to the inside of the bearing retaining rings 4, the two bearing retaining rings 4 are fixedly connected to the opposite sides of the two bearing seats 3, the inner diameters of the two bearing seats 3 are fixedly connected to the coverless bearings 7, the opposite sides of the two coverless bearings 7 are provided with bearing covers 2, the two bearing covers 2 are fixedly connected to the adjacent bearing seats 3, the opposite sides of the two bearing covers 2 are fixedly connected to the labyrinth seals 5, the inner diameters of the two labyrinth seals 5 are provided with sleeves 6, the inner diameters of the two coverless bearings 7 are fixedly connected to the main shaft 8, and a recovery component is provided between the two bearing seats 3, which is used to recover lubricating oil.

[0024] Specifically, the lubricating oil enters the inner ring of the bearing retaining ring 4 through the oil inlet pipe 9, part of which is sprayed on the upper cylindrical roller of the end coverless bearing 7, and part of which flows to the bottom cylindrical roller, and then enters the chamber formed by the bearing cover 2 and the sleeve 6, and then flows to the lower part of the bearing box shell 1 through the radial and axial oil holes at the bottom of the bearing cover 2, and flows back to the lubricating oil station through the oil outlet connector 10. When the main shaft 8 runs at high speed, the other part of the lubricating oil flows into the chamber between the bearing cover 2 and the labyrinth seal 5 through the gap between the bearing cover 2 and the sleeve 6, so that the bearing can be fully lubricated during operation, and heat is taken away, thereby extending the service life of the bearing and ensuring long-term safe operation. The problem of lubricating oil deposition, insufficient lubrication and damage to the bearing caused by the existing lubrication method is solved. The bearing seats 3 on the left and right sides have the same principle.

[0025] Reference Figure 1The recovery component includes an oil outlet connector 10, which is fixedly connected to the bearing box housing 1. The oil outlet connector 10 penetrates and extends to the inner wall of the bearing box housing 1. A cover plate 11 is provided at the bottom of the oil outlet connector 10, and the cover plate 11 is fixedly connected to the oil outlet connector 10 by screws.

[0026] Specifically, the lubricating oil supplied by the lubricating oil station enters the inner ring of the bearing retaining ring 4 through the oil inlet pipe 9 inside the bearing box, and after lubrication, flows back to the lower part of the bearing box shell 1 through the oil hole at the bottom of the bearing cover 2, and flows back to the lubricating oil station through the oil outlet connector 10, thereby realizing the recycling of the lubricating oil and solving the problems of accumulation of lubricating oil in the bearing box and waste of lubricating oil in the existing bearing box.

[0027] Reference Figure 2 The bottom of the bearing cover 2 is respectively provided with axial and radial oil outlet holes, and the two are interconnected; the upper part of the inner ring of the bearing retaining ring 4 is provided with an oil inlet hole, one end of the oil inlet hole is connected to the oil inlet pipe 9, and the other end of the oil inlet hole is connected to the inner ring; the inner ring of the bearing retaining ring 4 is a tapered structure; the diameter of the bearing retaining ring 4 close to the end cover bearing 7 is larger and larger than the inner diameter of the outer ring of the end cover bearing 7, and the diameter of the bearing retaining ring 4 away from the end cover bearing 7 is smaller and smaller than the inner diameter of the outer ring of the end cover bearing 7; the sleeve 6 is sleeved on the main shaft 8, and the sleeve 6 is axially connected to the end cover bearing 7; the labyrinth seal 5 is fixed on the outside of the bearing cover 2, and the inner ring of the labyrinth seal 5 is sealed with the sleeve 6.

[0028] Specifically, such a structure can introduce lubricating oil into the inner ring of the bearing retaining ring 4, and can accumulate a certain amount of lubricating oil to fully lubricate the coverless bearing 7. In the closed bearing box, a complete lubricating oil flow circuit is arranged around the bearing, and combined with an external lubricating oil station to force oil supply, the bearing can be fully lubricated during operation, and heat can be taken away, thereby extending the service life of the bearing and ensuring long-term safe operation.

[0029] Working principle: The lubricating oil supplied by the lubricating oil station enters the inner ring of the bearing retaining ring 4 through the oil inlet pipe 9 inside the bearing box. Part of it is sprayed on the upper cylindrical roller of the end coverless bearing 7, and part of it flows to the bottom cylindrical roller, and then enters the chamber formed by the bearing cover 2 and the sleeve 6, and then flows to the lower part of the bearing box shell 1 through the radial and axial oil holes at the bottom of the bearing cover 2, and flows back to the lubricating oil station through the oil outlet connector 10. When the main shaft 8 runs at high speed, the other part of the lubricating oil flows into the chamber between the bearing cover 2 and the sleeve 6 through the gap between the bearing cover 2 and the labyrinth seal 5, and then flows back to the lower part of the bearing box shell 1 through the oil hole at the bottom of the bearing cover 2, and flows back to the lubricating oil station through the oil outlet connector 10. The left and right bearing seats 3 work in the same principle. By arranging a complete lubricating oil flow circuit around the bearing in the closed bearing box, combined with forced oil supply from an external lubricating oil station, the bearing can be fully lubricated during operation, and heat is taken away, thereby extending the service life of the bearing and ensuring long-term safe operation.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A bearing box bearing lubrication assembly, comprising a bearing box housing (1), characterized in that: The surface of the bearing box shell (1) is fixedly connected to an oil inlet nozzle (12), the inner diameter of the oil inlet nozzle (12) is fixedly connected to an oil inlet pipe (9), the left and right ends of the oil inlet pipe (9) are fixedly connected to bearing retaining rings (4), the left and right ends of the oil inlet pipe (9) pass through and extend into the interior of the bearing retaining ring (4), the two opposite sides of the two bearing retaining rings (4) are fixedly connected to bearing seats (3), the inner diameters of the two bearing seats (3) are fixedly connected to bearings without end covers (7), the opposite sides of the two bearing seats (7) are provided with bearing covers (2), the two bearing covers (2) are fixedly connected to adjacent bearing seats (3), the opposite sides of the two bearing covers (2) are fixedly connected to labyrinth seals (5), the inner diameters of the two labyrinth seals (5) are provided with sleeves (6), the inner diameters of the two bearings without end covers (7) are fixedly connected to a main shaft (8), and a recovery component is provided between the two bearing seats (3), the recovery component is used to recover lubricating oil.

2. The bearing box bearing lubrication assembly according to claim 1, characterized in that: The recovery assembly comprises an oil outlet connector (10), the oil outlet connector (10) being fixedly connected to the bearing box housing (1), the oil outlet connector (10) penetrating and extending to the inner wall of the bearing box housing (1), a cover plate (11) being provided at the bottom of the oil outlet connector (10), and the cover plate (11) being fixedly connected to the oil outlet connector (10) by screws.

3. The bearing box bearing lubrication assembly according to claim 1, characterized in that: The bottom of the bearing cover (2) is provided with axial and radial oil outlet holes, respectively, and the two are interconnected.

4. The bearing box bearing lubrication assembly according to claim 1, characterized in that: An oil inlet hole is provided on the upper portion of the inner ring of the bearing retaining ring (4), one end of the oil inlet hole is connected to the oil inlet pipe (9), and the other end of the oil inlet hole is connected to the inner ring.

5. The bearing box bearing lubrication assembly according to claim 1, characterized in that: The inner ring of the bearing retaining ring (4) is a conical structure.

6. The bearing box bearing lubrication assembly according to claim 1, characterized in that: The side of the bearing retaining ring (4) close to the bearing without end cover (7) has a larger diameter and is larger than the inner diameter of the outer ring of the bearing without end cover (7), and the side of the bearing retaining ring (4) away from the bearing without end cover (7) has a smaller diameter and is smaller than the inner diameter of the outer ring of the bearing without end cover (7).

7. The bearing box bearing lubrication assembly according to claim 1, characterized in that: The sleeve (6) is sleeved on the main shaft (8), and the sleeve (6) is axially connected to the coverless bearing (7).

8. The bearing box bearing lubrication assembly according to claim 1, characterized in that: The labyrinth seal (5) is fixed on the outside of the bearing cover (2), and the inner ring of the labyrinth seal (5) is sealed in contact with the sleeve (6).

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