High-temperature motor oil bearing

Abstract

The utility model relates to the technical field of oil-retaining bearings, in particular to a high-temperature motor oil-retaining bearing which comprises an outer sleeve and an oil-retaining bearing body, the oil-retaining bearing body is located inside the outer sleeve, an oil storage groove is formed in the inner wall of the outer sleeve, and an oil injection assembly is arranged inside the lower end of the outer sleeve and used for injecting lubricating oil into the oil storage groove. According to the oil-retaining bearing, the oil injection assembly and the oil storage tank are arranged, and a certain amount of lubricating oil is injected into the oil storage tank through the oil injection assembly, so that the purpose of storing the lubricating oil is achieved, the oil storage quantity of the oil-retaining bearing body is improved, and the service life of the oil-retaining bearing is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of oil-impregnated bearings, in particular to an oil-impregnated bearing for high-temperature motors. Background Art

[0002] A bearing is a commonly used structure in the mechanical field for connecting an output shaft to related structures. Bearings are classified into different types according to their usage scenarios and functions. An oil-impregnated bearing is one type of bearing, which is made of metal powder. Oil-impregnated bearings are required in the production of high-temperature motors.

[0003] Chinese Utility Model Patent ZL202020966011.6 discloses an oil-impregnated bearing for high-temperature motors, including an outer ring. An inner ring is installed inside the outer ring, and an inner cavity is formed by enclosing the inside of the inner ring. An oil inlet hole is opened inside the inner ring, and a shrinkage hole is opened on the inner surface of the inner ring. Connecting blocks are welded and connected to the outer surfaces of the upper and lower ends of the inner ring, and the connecting blocks are located inside the connecting grooves. The connection method between the outer ring and the inner ring is nested connection, and a sliding structure is formed between the outer ring and the inner ring. The material of the inner ring is chromium copper material. The oil inlet holes are equidistantly arranged in the vertical direction inside the inner ring, and are annularly arrayed about the center of the inner ring on the horizontal plane inside the inner ring. This oil-impregnated bearing for high-temperature motors improves the wear resistance of the oil-impregnated bearing, extends the service life of the oil-impregnated bearing, and can prevent oil leakage inside the oil-impregnated bearing. In addition, it is applicable to high-temperature environments and reduces the influence caused by thermal expansion and contraction.

[0004] However, the above-mentioned oil-impregnated bearing cannot store lubricating oil during use, so that the lubricating oil is likely to be lacking after the oil-impregnated bearing operates for a period of time, thus affecting the service life of the oil-impregnated bearing. Therefore, it is urgent to solve this situation. Summary of the Utility Model

[0005] In view of this, the main technical problem to be solved by the utility model is to provide an oil-impregnated bearing for high-temperature motors: solving the problem that the existing oil-impregnated bearing cannot store lubricating oil.

[0006] To achieve the above object, the utility model adopts the following technical scheme: An oil-impregnated bearing for high-temperature motors includes an outer sleeve and an oil-impregnated bearing body. The oil-impregnated bearing body is located inside the outer sleeve. An oil storage groove is opened on the inner wall of the outer sleeve. An oil injection assembly is arranged inside the lower end of the outer sleeve, and the oil injection assembly is used to inject lubricating oil into the oil storage groove.

[0007] By adopting the above technical scheme, the oil-impregnated bearing body is installed inside the outer sleeve, and then a certain amount of lubricating oil is injected into the oil storage groove by using the oil injection assembly. At this time, the purpose of storing lubricating oil is achieved, the oil storage amount of the oil-impregnated bearing body is increased, and thus the service life of the oil-impregnated bearing is improved.

[0008] As a further description of the above technical solution:

[0009] A stepped hole is provided on the upper end surface of the oil-impregnated bearing body. A screw is provided inside the stepped hole, and the screw is threadedly connected to the outer sleeve.

[0010] By adopting the above technical solution, the screw passes through the stepped hole of the oil-impregnated bearing body, and at this time, the oil-impregnated bearing body and the outer sleeve can be fixed together by using the screw.

[0011] As a further description of the above technical solution:

[0012] A positioning groove is provided on the upper end surface of the outer sleeve. A positioning block is slidably connected inside the positioning groove, and the positioning block is fixedly connected to the oil-impregnated bearing body.

[0013] By adopting the above technical solution, with the cooperation of the positioning groove and the positioning block, the relative rotation of the oil-impregnated bearing body with respect to the outer sleeve can be avoided, and at the same time, it is also convenient to install the oil-impregnated bearing body on the outer sleeve.

[0014] As a further description of the above technical solution:

[0015] A wear-resistant ring is fixedly connected to the inner wall of the oil-impregnated bearing body, and through holes are provided on the circumferential surface of the wear-resistant ring.

[0016] By adopting the above technical solution, the wear resistance of the oil-impregnated bearing body can be improved under the action of the wear-resistant ring, and at the same time, the existence of the through holes is also convenient for the lubricating oil to flow out.

[0017] As a further description of the above technical solution:

[0018] Sealing grooves are provided on the inner wall of the outer sleeve. There are two sealing grooves, and they are symmetrically distributed at the upper and lower ends of the oil storage groove. Sealing rings are provided inside the sealing grooves, and the sealing rings are fixedly connected to the oil-impregnated bearing body.

[0019] By adopting the above technical solution, the sealing performance between the oil-impregnated bearing body and the outer sleeve can be improved with the cooperation of the sealing grooves and the sealing rings, thereby effectively preventing the lubricating oil from flowing out from the gap between the oil-impregnated bearing body and the outer sleeve.

[0020] As a further description of the above technical solution:

[0021] The oil injection assembly includes an oil injection hole, a plugging groove and a plugging block. A plugging groove is provided on the lower end surface of the outer sleeve. An oil injection hole is provided at the bottom of the plugging groove, and the oil injection hole communicates with the oil storage groove. A plugging block is threadedly connected inside the plugging groove.

[0022] By adopting the above technical solution, when lubricating oil needs to be added, the plugging block is taken out from the inside of the plugging groove, and then the lubricating oil can be added into the oil storage tank through the oil injection hole, thus achieving the purpose of adding lubricating oil.

[0023] By means of the above technical solution, the oil-impregnated bearing of a high-temperature motor of the present utility model has at least the following beneficial effects:

[0024] 1. Compared with the prior art, for the oil-impregnated bearing of a high-temperature motor, by arranging an oil injection assembly and an oil storage tank, and using the oil injection assembly to add a certain amount of lubricating oil into the oil storage tank, the purpose of storing lubricating oil is achieved at this time, the oil storage amount of the oil-impregnated bearing body is increased, and thus the service life of the oil-impregnated bearing is improved.

[0025] 2. Compared with the prior art, for the oil-impregnated bearing of a high-temperature motor, by arranging a sealing groove and a sealing ring, the sealing performance between the oil-impregnated bearing body and the outer sleeve can be improved under the cooperation of the sealing groove and the sealing ring, thereby effectively preventing the lubricating oil from flowing out of the gap between the oil-impregnated bearing body and the outer sleeve, and thus reducing the waste of lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of the overall structure of an oil-impregnated bearing of a high-temperature motor proposed by the present utility model;

[0027] Figure 2 is a schematic diagram of the internal structure of an oil-impregnated bearing of a high-temperature motor proposed by the present utility model;

[0028] Figure 3 is an enlarged view of part A of an oil-impregnated bearing of a high-temperature motor proposed by the present utility model; Figure 2 in;

[0029] Figure 4 is a schematic diagram of the structure of the first perspective after splitting the outer sleeve and the oil-impregnated bearing body of an oil-impregnated bearing of a high-temperature motor proposed by the present utility model;

[0030] Figure 5 is a schematic diagram of the structure of the second perspective after splitting the outer sleeve and the oil-impregnated bearing body of an oil-impregnated bearing of a high-temperature motor proposed by the present utility model.

[0031] LEGEND DESCRIPTION:

[0032] 1. Outer sleeve; 2. Oil-impregnated bearing body; 3. Step hole; 4. Wear-resistant ring; 401. Through hole; 5. Screw; 6. Oil storage tank; 7. Positioning block; 8. Sealing ring; 9. Sealing groove; 10. Oil injection hole; 11. Plugging groove; 12. Plugging block; 13. Positioning groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] Refer to Figures 1-5, A grease-containing bearing for a high-temperature motor provided by the utility model includes an outer sleeve 1 and a grease-containing bearing body 2. The grease-containing bearing body 2 is located inside the outer sleeve 1. An oil storage groove 6 is provided on the inner wall of the outer sleeve 1. An oil injection assembly is arranged inside the lower end of the outer sleeve 1, and the oil injection assembly is used to inject lubricating oil into the oil storage groove 6.

[0034] By adopting the above technical solution, the grease-containing bearing body 2 is installed inside the outer sleeve 1, and then a certain amount of lubricating oil is injected into the oil storage groove 6 by using the oil injection assembly. At this time, the purpose of storing lubricating oil is achieved, the oil storage capacity of the grease-containing bearing body 2 is increased, and thus the service life of the grease-containing bearing is improved.

[0035] A stepped hole 3 is provided on the upper end surface of the grease-containing bearing body 2. A screw 5 is arranged inside the stepped hole 3, and the screw 5 is threadedly connected with the outer sleeve 1.

[0036] By adopting the above technical solution, the screw 5 passes through the stepped hole 3 of the grease-containing bearing body 2. At this time, the grease-containing bearing body 2 can be fixed to the outer sleeve 1 by using the screw 5.

[0037] A positioning groove 13 is provided on the upper end surface of the outer sleeve 1. A positioning block 7 is slidably connected inside the positioning groove 13, and the positioning block 7 is fixedly connected with the grease-containing bearing body 2.

[0038] By adopting the above technical solution, with the cooperation of the positioning groove 13 and the positioning block 7, the relative rotation of the grease-containing bearing body 2 with respect to the outer sleeve 1 can be avoided, and at the same time, it is also convenient to install the grease-containing bearing body 2 on the outer sleeve 1.

[0039] A wear-resistant ring 4 is fixedly connected to the inner wall of the grease-containing bearing body 2, and through holes 401 are provided on the circumferential surface of the wear-resistant ring 4.

[0040] By adopting the above technical solution, the wear resistance of the grease-containing bearing body 2 can be improved under the action of the wear-resistant ring 4, and at the same time, the existence of the through holes 401 is also convenient for the lubricating oil to flow out.

[0041] Sealing grooves 9 are provided on the inner wall of the outer sleeve 1. There are two sealing grooves 9, and they are symmetrically distributed at the upper and lower ends of the oil storage groove 6. Sealing rings 8 are arranged inside the sealing grooves 9, and the sealing rings 8 are fixedly connected with the grease-containing bearing body 2.

[0042] By adopting the above technical solution, the sealing performance between the grease-containing bearing body 2 and the outer sleeve 1 can be improved with the cooperation of the sealing grooves 9 and the sealing rings 8, thereby effectively preventing the lubricating oil from flowing out from the gap between the grease-containing bearing body 2 and the outer sleeve 1.

[0043] The oil injection assembly includes an oil injection hole 10, a plugging groove 11 and a plugging block 12. The plugging groove 11 is provided on the lower end surface of the outer sleeve 1. The oil injection hole 10 is provided at the bottom of the plugging groove 11, and the oil injection hole 10 is communicated with the oil storage groove 6. The plugging block 12 is threadedly connected inside the plugging groove 11.

[0044] By adopting the above technical solution, when lubricating oil needs to be filled, the plug block 12 is taken out from the inside of the plugging groove 11, and then lubricating oil can be filled into the oil storage tank 6 through the oil filling hole 10, thus achieving the purpose of filling lubricating oil.

[0045] Working principle:

[0046] During use, the oil-impregnated bearing body 2 is installed inside the outer sleeve 1, and the positioning groove 13 is made to correspond to the positioning block 7. With the cooperation of the positioning groove 13 and the positioning block 7, it is convenient to limit the oil-impregnated bearing body 2, thus facilitating the fixing by the screw 5. After the oil-impregnated bearing body 2 is installed, at this time, when the screw 5 is tightened, the oil-impregnated bearing body 2 can be stably fixed on the outer sleeve 1; when lubricating oil needs to be filled, the plug block 12 is taken out from the inside of the plugging groove 11, and then lubricating oil can be filled into the oil storage tank 6 through the oil filling hole 10, thus achieving the purpose of filling lubricating oil, enabling a certain amount of lubricating oil to be stored inside the oil storage tank 6, thereby increasing the oil storage capacity of the oil-impregnated bearing body 2 and thus extending the service life of the oil-impregnated bearing.

[0047] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A high-temperature motor oil-containing bearing, comprising an outer sleeve (1) and an oil-containing bearing body (2), characterized in that: The oil-containing bearing body (2) is located inside the outer sleeve (1); an oil storage tank (6) is provided on the inner wall of the outer sleeve (1); an oil injection assembly is provided inside the lower end of the outer sleeve (1); the oil injection assembly is used to inject lubricating oil into the oil storage tank (6).

2. The high temperature motor oil-containing bearing according to claim 1, characterized in that: The upper end surface of the oil-containing bearing body (2) is provided with a stepped hole (3), a screw (5) is arranged inside the stepped hole (3), and the screw (5) is threadedly connected to the outer sleeve (1).

3. The high temperature motor oil-containing bearing according to claim 1, characterized in that: The upper end surface of the outer sleeve (1) is provided with a positioning groove (13), a positioning block (7) is slidably connected inside the positioning groove (13), and the positioning block (7) is fixedly connected to the oil-containing bearing body (2).

4. The high temperature motor oil-containing bearing according to claim 1, characterized in that: A wear-resistant ring (4) is fixedly connected to the inner wall of the oil-containing bearing body (2), and a through hole (401) is opened on the circumferential surface of the wear-resistant ring (4).

5. The high temperature motor oil-containing bearing according to claim 1, characterized in that: The inner wall of the outer sleeve (1) is provided with a sealing groove (9), and two sealing grooves (9) are provided and symmetrically distributed at the upper and lower ends of the oil storage tank (6). A sealing ring (8) is provided inside the sealing groove (9), and the sealing ring (8) is fixedly connected to the oil-containing bearing body (2).

6. The high temperature motor oil-containing bearing according to claim 1, characterized in that: The oil injection assembly comprises an oil injection hole (10), a blocking groove (11) and a blocking block (12); the lower end surface of the outer sleeve (1) is provided with a blocking groove (11); the bottom of the blocking groove (11) is provided with an oil injection hole (10); the oil injection hole (10) is communicated with the oil storage tank (6); the sealing block (12) is threadedly connected to the inside of the blocking groove (11).

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