Integrated unit bearing

Abstract

The utility model provides an integrated unit bearing and relates to the technical field of bearings. The device comprises an integrated outer ring, and the first end face of the integrated outer ring is fixedly connected to the outer side wall of an oil shell; the O-shaped ring is mounted between the first end face of the integrated outer ring and the oil shell; the combined sealing ring is arranged between the integrated outer ring and the shaft; and the sealing gasket is axially arranged between the second end face of the integrated outer ring and the shaft. In the utility model, the combined sealing ring is arranged at the joint of the shaft and the bearing, so that the sealing effect is effectively improved; in addition, through the O-shaped ring and the sealing gasket, dust can be effectively prevented from entering the joint of the shaft and the bearing, so that oil sludge is formed, and the lubricating effect is affected. On the whole, dust can be prevented from entering the bearing, and the sealing performance of lubricating oil is effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, in particular to an integrated unit bearing. Background Art

[0002] In existing equipment, in order to ensure the lubrication effect between the shaft and the bearing, an oil shell is installed on the shaft and the bearing. During use, in order to prevent lubricating oil from leaking, an oil seal is installed between the shaft and the bearing. However, during the high-speed rotation of the shaft, there is still a situation where lubricating oil leaks, and sludge is generated at the connection between the shaft and the bearing.

[0003] Therefore, there is an urgent need for an integrated unit bearing that can effectively improve the sealing performance. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an integrated unit bearing, which solves the technical problems of bearing oil leakage and dust ingress in the prior art. The preferred technical solutions provided by the utility model can produce many technical effects, which will be elaborated below.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] An integrated unit bearing provided by the utility model includes:

[0007] An integrated outer ring, the first end face of the integrated outer ring is fixedly connected to the outer side wall of the oil shell;

[0008] An O-ring, the O-ring is installed between the first end face of the integrated outer ring and the oil shell;

[0009] A combined seal, the combined seal is installed between the integrated outer ring and the shaft;

[0010] A gasket, the gasket is axially installed between the second end face of the integrated outer ring and the shaft.

[0011] Preferably, the combined seal includes:

[0012] An inner oil seal, the inner oil seal abuts against the shaft and rotates synchronously with the shaft;

[0013] An outer oil seal, the outer oil seal abuts against the inner side wall of the integrated outer ring and rotates synchronously with the integrated outer ring, and the outer oil seal is rotatably connected to the outside of the inner oil seal.

[0014] Preferably, it further includes:

[0015] A first sealing lip, the first sealing lip is fixedly connected to the outer oil seal and sleeved on the outside of the inner oil seal;

[0016] A ring spring, the ring spring is sleeved outside the first sealing lip, and the first sealing lip abuts against the outside of the inner oil seal through the ring spring.

[0017] Preferably, it further includes:

[0018] A second sealing lip, several of the second sealing lips are fixedly connected to the outer oil seal and are rotatably arranged with the inner oil seal respectively.

[0019] Preferably, it further includes:

[0020] A third sealing lip, several of the third sealing lips are fixedly connected to the inner oil seal and are rotatably arranged with the outer oil seal respectively.

[0021] Preferably, it further includes:

[0022] A sealing surface, the sealing surface is arranged inside the inner oil seal and abuts against the shaft.

[0023] Preferably, the sealing surface is axially arranged in a wavy shape.

[0024] Preferably, it further includes:

[0025] Steel balls, a cage and an inner ring, a deep groove ball bearing structure is formed between the steel balls, the cage, the inner ring and the integral outer ring.

[0026] In the technical solution provided by the present utility model, a combined seal ring is adopted at the connection between the shaft and the bearing, effectively improving the sealing effect; in addition, through the O-ring and the sealing gasket, it can effectively prevent dust from entering the connection between the shaft and the bearing, thereby forming sludge and affecting the lubrication effect. Overall, this application can prevent dust from entering the bearing and effectively ensure the sealing performance of the lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0028] Figure 1 It is an axial schematic diagram of the integral outer ring of the present utility model;

[0029] Figure 2 It is an overall sectional schematic diagram of the present utility model;

[0030] Figure 3 It is Figure 2 A partial enlarged schematic diagram of A in

[0031] In the figure: 1. Integral outer ring; 2. Inner ring; 3. Inner oil seal; 4. Outer oil seal; 5. Gasket; 6. Steel ball; 7. Cage; 8. O-ring; 9. Annular spring; 10. First sealing lip; 11. Second sealing lip; 12. Sealing surface; 13. Oil sump; 14. Third sealing lip. Detailed implementation mode

[0032] In order to make the purpose, technical solution and advantages of the present utility model clearer, the technical solution of the present utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments in the present utility model, all other implementation manners obtained by those of ordinary skill in the art without creative work belong to the scope protected by the present utility model.

[0033] Reference Figures 1-3 , a specific embodiment of the present utility model provides an integral unit bearing, including:

[0034] Integral outer ring 1, the first end face of the integral outer ring 1 is fixedly connected to the outer side wall of the oil sump 13;

[0035] O-ring 8, the O-ring 8 is installed between the first end face of the integral outer ring 1 and the oil sump 13;

[0036] Combined sealing ring, the combined sealing ring is installed between the integral outer ring 1 and the shaft;

[0037] Gasket 5, the gasket 5 is axially installed between the second end face of the integral outer ring 1 and the shaft.

[0038] In existing equipment, in order to ensure the lubrication effect between the shaft and the bearing, an oil sump is installed on the shaft and the bearing. In the use process, in order to prevent lubricating oil from leaking, an oil seal is installed between the shaft and the bearing; however, there is still a situation where lubricating oil leaks during the high-speed rotation of the shaft, and sludge is generated at the connection between the shaft and the bearing. In this application, the mechanism of the integral outer ring 1 is a whole-type maintenance-free design, and no lubrication needs to be added later, greatly reducing the maintenance cost; a combined sealing ring is used at the connection between the shaft and the bearing, effectively improving the sealing effect; in addition, through the O-ring 8 and the gasket 5, it is possible to effectively prevent dust from entering the connection between the shaft and the bearing, thereby forming sludge and affecting the lubrication effect. Overall, this application can prevent dust from entering the bearing and effectively ensure the sealing of the lubricating oil, greatly improving the product quality reliability, working efficiency, and reducing the maintenance cost.

[0039] Further optimized solution, the combined sealing ring includes:

[0040] Inner oil seal 3, the inner oil seal 3 abuts against the shaft and rotates synchronously with the shaft;

[0041] The outer oil seal 4 abuts against the inner side wall of the integral outer ring 1 and rotates synchronously with the integral outer ring 1. The outer oil seal 4 is rotatably connected to the outside of the inner oil seal 3.

[0042] By the rotational fit between the inner oil seal 3 and the outer oil seal 4, oil leakage is prevented. Annular metal bushings are respectively embedded in the inner oil seal 3 and the outer oil seal 4. The inner oil seal 3 abuts against the shaft through the annular metal bushing, and the outer oil seal 4 abuts against the inner side wall of the integral outer ring 1 through the annular metal bushing.

[0043] A further optimized solution further includes:

[0044] The first sealing lip 10 is fixedly connected to the outer oil seal 4 and sleeved on the outside of the inner oil seal 3;

[0045] The annular spring 9 is sleeved on the outside of the first sealing lip 10. The first sealing lip 10 abuts against the outside of the inner oil seal 3 through the annular spring 9.

[0046] Under the elastic action of the annular spring 9, the first sealing lip 10 is abutted against the outside of the inner oil seal 3, thus forming a good sealing effect; the annular spring 9 can prevent the first sealing lip 10 from being worn during working rotation, and the annular spring 9 shrinks to compensate for the inner diameter wear amount.

[0047] A further optimized solution further includes:

[0048] The second sealing lips 11. A plurality of second sealing lips 11 are fixedly connected to the outer oil seal 4 and are respectively rotatably arranged with the inner oil seal 3.

[0049] A further optimized solution further includes:

[0050] The third sealing lips 14. A plurality of third sealing lips 14 are fixedly connected to the inner oil seal 3 and are respectively rotatably arranged with the outer oil seal 4.

[0051] In order to further improve the sealing effect, a plurality of second sealing lips 11 and third sealing lips 14 are arranged between the outer oil seal 4 and the inner oil seal 3; together with the design of the first sealing lip 10, it can effectively prevent sand and mud from entering and keep the purity of the internal oil.

[0052] A further optimized solution further includes:

[0053] The sealing surface 12 is arranged on the inner side of the inner oil seal 3 and abuts against the shaft. The sealing surface 12 is axially arranged in a wavy shape.

[0054] Setting the wavy sealing surface 12 is beneficial to layered sealing, that is, achieving the effect of multi-layer sealing and improving the sealing effect between the shaft and the inner oil seal 3.

[0055] The further optimized solution also includes:

[0056] A deep groove ball bearing structure is formed among the steel balls 6, the cage 7 and the inner ring 2, and between the steel balls 6, the cage 7, the inner ring 2 and the integral outer ring 1.

[0057] Adopting the deep groove ball bearing structure can withstand radial and axial loads.

[0058] In this application, the integral outer ring 1 adopts a unique local heat treatment process to make the bearing have higher strength; improve product reliability, while meeting the wear resistance of the bearing raceway and the strength of the outer ring; after the outer surface is treated with a highly corrosion-resistant trivalent chromium blue zinc passivating agent, then a 904 high-efficiency anti-corrosion sealing agent is used for sealing treatment to form a protective film on the surface of the galvanized layer, meeting the smoke test: 100 hours.

[0059] It should be noted that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. described herein indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to this application. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0060] In the description of this article, it should also be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0061] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of changes or substitutions, which should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claimed rights.

Claims

1. An integrated unit bearing, characterized in that, Including: An integral outer ring (1), the first end face of the integral outer ring (1) being fixedly connected to the outer side wall of the oil sump (13); An O-ring (8), the O-ring (8) being installed between the first end face of the integral outer ring (1) and the oil sump (13); A combined seal, the combined seal being installed between the integral outer ring (1) and the shaft; A gasket (5), the gasket (5) being axially installed between the second end face of the integral outer ring (1) and the shaft.

2. The integrated unit bearing according to claim 1, wherein, The combined seal includes: An inner oil seal (3), the inner oil seal (3) abutting against the shaft and rotating synchronously with the shaft; An outer oil seal (4), the outer oil seal (4) abutting against the inner side wall of the integral outer ring (1) and rotating synchronously with the integral outer ring (1), the outer oil seal (4) being rotatably connected to the outside of the inner oil seal (3).

3. The integrated unit bearing according to claim 2, wherein It further includes: A first sealing lip (10), the first sealing lip (10) being fixedly connected to the outer oil seal (4) and sleeved on the outside of the inner oil seal (3); An annular spring (9), the annular spring (9) being sleeved on the outside of the first sealing lip (10), and the first sealing lip (10) abutting against the outside of the inner oil seal (3) through the annular spring (9).

4. The integrated unit bearing according to claim 2, wherein, It further includes: Second sealing lips (11), several of the second sealing lips (11) being fixedly connected to the outer oil seal (4) and rotatably arranged with the inner oil seal (3) respectively.

5. The integrated unit bearing according to claim 2, characterized in that, It further includes: Third sealing lips (14), several of the third sealing lips (14) being fixedly connected to the inner oil seal (3) and rotatably arranged with the outer oil seal (4) respectively.

6. The integrated unit bearing according to claim 2, wherein It further includes: A sealing surface (12), the sealing surface (12) being arranged inside the inner oil seal (3) and abutting against the shaft.

7. The integrated unit bearing according to claim 6, wherein The sealing surface (12) is axially arranged in a wavy shape.

8. The integrated unit bearing according to claim 1, wherein It further includes: Steel balls (6), a cage (7) and an inner ring (2), a deep groove ball bearing structure being formed between the steel balls (6), the cage (7), the inner ring (2) and the integral outer ring (1).

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