Multi-layer bearing for ship machine

Abstract

The utility model provides a multilayer bearing for a ship machine, and belongs to the technical field of bearings. The inner ring is arranged in the outer ring; the plurality of ball rotors are arranged between the outer ring and the inner ring; the fixing mechanism is arranged between the outer ring and the inner ring and used for fixing the multiple ball rotors; the two sealing rings are arranged on the two sides of the inner ring respectively and clamped between the outer ring and the inner ring; the two sets of limiting mechanisms are arranged and used for fixing the two sealing rings to the two sides of the inner ring correspondingly; according to the ball bearing disclosed by the utility model, the outer ring and the inner ring can be sealed from two sides through the two sealing rings, so that the side edges of the outer ring and the inner ring do not have larger gaps, and lubricating oil added between the outer ring and the inner ring can better act on a plurality of ball rotors; therefore, the multi-layer bearing composed of the outer ring, the inner ring and the ball rotor can be used more smoothly and can act on a ship machine better.

Description

Technical Field

[0001] The utility model belongs to the technical field of bearings, and in particular relates to a multi-layer bearing for a ship engine. Background Art

[0002] Multilayer bearings are composite bearings made of multiple bearing rings. Their main feature is that they can withstand large axial loads while maintaining a high radial load capacity. This type of bearing usually consists of an inner ring, an outer ring, and several intermediate rings. The rings are kept in contact and rotated by rolling elements (such as steel balls or rollers). Multilayer bearings are widely used in situations that require composite loads and high precision, such as machine tool spindles, automobile axles, reducers, and some special industrial equipment.

[0003] The structure of the multi-layer bearing allows it to effectively share the negative axial load while maintaining radial load capacity, improving the bearing's load capacity and stability. In addition, the rolling elements in the multi-layer bearing are placed between multiple rings, which can provide low friction and low noise operation at high speeds, thereby extending the service life of the bearing and reducing maintenance costs.

[0004] In the prior art, the multi-layer bearing structure for marine engines is relatively complex, generally consisting of an inner ring, an outer ring and a rotor in the middle. When used for a long time, it is necessary to add lubricating oil to the bearing to make the bearing lubricating better. However, after adding lubricating oil to the bearing, the lubricating oil is easy to overflow, which not only easily causes waste, but also easily causes splashing everywhere, making it difficult to handle. Utility Model Content

[0005] The utility model aims to provide a multi-layer bearing for a marine engine, aiming to solve the problem in the prior art that after the lubricating oil is added to the bearing, the lubricating oil easily overflows, which not only easily causes waste, but also easily causes splashing everywhere and is difficult to handle.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] Multilayer bearings for marine engines, including:

[0008] Outer ring;

[0009] An inner ring, arranged inside the outer ring;

[0010] A plurality of ball rotors are provided and arranged between the outer ring and the inner ring;

[0011] A fixing mechanism, disposed between the outer ring and the inner ring, for fixing the plurality of ball rotors;

[0012] Two sealing rings are provided, which are respectively arranged on both sides of the inner ring and clamped between the outer ring and the inner ring;

[0013] The limiting mechanism is provided with two groups, which are respectively used to fix the two sealing rings on the two sides of the inner ring.

[0014] As a preferred solution of the utility model, the fixing mechanism includes:

[0015] Two fixing rings are provided and are respectively located on both sides of the plurality of ball rotors;

[0016] A plurality of engaging grooves are provided, each of which is opened at the adjacent ends of the two fixing rings, and the plurality of engaging grooves are matched with the ball rotor;

[0017] The connecting component is used to fix the two fixing rings.

[0018] As a preferred solution of the utility model, the connecting component includes:

[0019] A plurality of threaded holes are provided, each of which is opened on one side end of one of the fixing rings;

[0020] A plurality of threaded sleeves are provided, each of which is fixed to one side end of another of the fixing rings and matches with the plurality of threaded holes;

[0021] A plurality of screws are provided, respectively passing through the plurality of threaded holes and being threadedly connected in the plurality of threaded sleeves.

[0022] As a preferred solution of the utility model, an outer bearing groove is formed on the inner surface of the outer ring, and an inner bearing groove is formed on the outer surface of the inner ring.

[0023] As a preferred solution of the utility model, each set of the limiting mechanisms includes:

[0024] Two countersunk grooves are provided, both of which are opened at one side end of the inner ring;

[0025] Two protrusions are provided, both of which are fixed to the circumferential inner wall of one of the sealing rings, and the protrusions match the countersunk grooves;

[0026] There are two clamping holes, which are respectively opened on the two protrusions;

[0027] The clamping columns are provided with two, which are respectively fixed in the two countersunk grooves and interference-fitted in the two clamping holes.

[0028] As a preferred solution of the utility model, the ends of the two sealing rings that are away from each other are both provided with prying openings.

[0029] As a preferred solution of the utility model, arc-shaped openings are provided on one side of the inner surfaces of the outer ring and the inner ring.

[0030] Compared with the prior art, the beneficial effects of the utility model are:

[0031] 1. In this solution, the outer ring and the inner ring can be sealed from both sides by two sealing rings, so that there will be no large gaps on the sides of the outer ring and the inner ring, so that the lubricating oil added between the outer ring and the inner ring can better act on the multiple ball rotors, so that the multi-layer bearing composed of the outer ring, the inner ring and the ball rotor can be used more smoothly and can better act on the ship engine.

[0032] 2. In this solution, by providing a fixing mechanism, multiple ball rotors can be connected so that the multiple ball rotors are evenly distributed in the outer ring and the inner ring to achieve better rotation and load-bearing effects, and it is convenient to disassemble and replace the ball rotors. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0034] Figure 1 It is a three-dimensional diagram in the utility model;

[0035] Figure 2 It is a first-perspective exploded stereogram in the utility model;

[0036] Figure 3 It is an exploded stereogram from the second perspective in the present utility model;

[0037] Figure 4 It is a partial stereoscopic view of the outer ring and the inner ring in the utility model.

[0038] In the figure: 1. outer ring; 2. inner ring; 3. outer bearing groove; 4. inner bearing groove; 5. fixing ring; 6. snap-fit ​​groove; 7. ball rotor; 8. threaded hole; 9. threaded sleeve; 10. screw; 11. sealing ring; 12. bump; 13. snap hole; 14. prying mouth; 15. countersunk groove; 16. snap column; 17. arc-shaped mouth. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] Example

[0041] See also Figure 1-Figure 4 , the utility model provides the following technical solutions:

[0042] Multilayer bearings for marine engines, including:

[0043] Outer ring 1;

[0044] Inner ring 2, arranged inside outer ring 1;

[0045] A plurality of ball rotors 7 are provided, and are arranged between the outer ring 1 and the inner ring 2;

[0046] A fixing mechanism, disposed between the outer ring 1 and the inner ring 2, for fixing the plurality of ball rotors 7;

[0047] Two sealing rings 11 are provided, which are respectively arranged on both sides of the inner ring 2 and clamped between the outer ring 1 and the inner ring 2;

[0048] The limiting mechanism is provided with two groups, which are respectively used to fix the two sealing rings 11 on the two sides of the inner ring 2.

[0049] In a specific embodiment of the utility model, an outer ring 1, an inner ring 2 and a plurality of ball rotors 7 constitute a bearing, and the plurality of ball rotors 7 can rotate between the outer ring 1 and the inner ring 2, so that the outer ring 1 and the inner ring 2 can rotate, and a fixing mechanism can connect the plurality of ball rotors 7, so that the plurality of ball rotors 7 are evenly distributed in the outer ring 1 and the inner ring 2, so as to achieve a better rotation and bearing capacity effect, and it is convenient to disassemble and replace the ball rotors 7, and two sealing rings 11 are provided, so that the outer ring 1 and the inner ring 2 can be sealed from both sides, so that there will be no large gap on the sides of the outer ring 1 and the inner ring 2, so that the lubricating oil added between the outer ring 1 and the inner ring 2 can better act on the plurality of ball rotors 7, so that the multi-layer bearing composed of the outer ring 1, the inner ring 2 and the ball rotor 7 can be smoother when used, and can better act on the ship engine, and the limiting mechanism can fix the sealing ring 11 on the inner ring 2, and it is not easy to fall off.

[0050] Specifically, the fixing mechanism includes:

[0051] Two fixing rings 5 ​​are provided, and are respectively located on both sides of the plurality of ball rotors 7;

[0052] There are a plurality of engaging grooves 6, which are respectively opened at the ends of the two fixing rings 5 ​​that are close to each other, and the plurality of engaging grooves 6 match the ball rotor 7;

[0053] The connecting component is used to fix the two fixing rings 5 ​​.

[0054] In this embodiment: the fixing ring 5 is connected to a plurality of ball rotors 7 via the provided snap-fit ​​grooves 6, the inner surface of the snap-fit ​​grooves 6 is arc-shaped, matching the ball rotors 7, the fixing rings 5 ​​on both sides clamp the ball rotors 7 via the snap-fit ​​grooves 6, but do not affect the rotation of the ball rotors 7, and at the same time, the arc diameter at the edge of the snap-fit ​​grooves 6 is smaller than the diameter of the ball rotors 7, so that the ball rotors 7 cannot escape from the two snap-fit ​​grooves 6, and can rotate more stably in the outer ring 1 and the inner ring 2.

[0055] Specifically, the connecting components include:

[0056] A plurality of threaded holes 8 are provided, each of which is opened at one side end of one of the fixing rings 5;

[0057] A plurality of threaded sleeves 9 are provided, each of which is fixed to one side end of another fixing ring 5 and matches with the plurality of threaded holes 8;

[0058] There are a plurality of screws 10 , which pass through the plurality of threaded holes 8 and are threadedly connected in the plurality of threaded sleeves 9 .

[0059] In this embodiment, the two fixing rings 5 ​​are threadedly connected in the threaded hole 8 by a screw 10, and then extended and threadedly connected in the threaded sleeve 9, so as to fix the two fixing rings 5, so that the ball rotor 7 is easy to disassemble and assemble.

[0060] Specifically, an outer bearing groove 3 is formed on the inner surface of the outer ring 1 , and an inner bearing groove 4 is formed on the outer surface of the inner ring 2 .

[0061] In this embodiment: the outer bearing groove 3 and the inner bearing groove 4 are matched with the ball rotor 7, so that the ball rotor 7 rotates in the outer bearing groove 3 and the inner bearing groove 4 without being separated from the outer bearing groove 3 and the inner bearing groove 4. The outer bearing groove 3 and the inner bearing groove 4 are both arc grooves.

[0062] Specifically, each set of limiting mechanisms includes:

[0063] Two countersunk grooves 15 are provided, both of which are opened at one side end of the inner ring 2;

[0064] Two protrusions 12 are provided, both of which are fixed to the inner circumferential wall of one of the sealing rings 11, and the protrusions 12 match the countersunk grooves 15;

[0065] There are two clamping holes 13, which are respectively opened on the two protrusions 12;

[0066] There are two clamping posts 16 , which are respectively fixed in the two countersunk grooves 15 and interference fit in the two clamping holes 13 .

[0067] In this embodiment: the sealing ring 11 is engaged on one side between the outer ring 1 and the inner ring 2, and the protrusion 12 is embedded in the countersunk groove 15 and will not protrude to the outside of the outer ring 1 and the inner ring 2, maintaining a smooth surface with the side surfaces of the outer ring 1 and the inner ring 2, and the interference fit between the clamping hole 13 and the clamping column 16 prevents the sealing ring 11 from detaching from the inner ring 2. At the same time, one side of the sealing ring 11 is not fixed to the outer ring 1, and is slidably connected to the inner surface of the outer ring 1, so as not to affect the rotation of the outer ring 1.

[0068] Specifically, the ends of the two sealing rings 11 that are away from each other are each provided with a prying opening 14. Through the provided prying opening 14, after the sealing ring 11 is installed, the sealing ring 11 can be pried up conveniently through the prying opening 14, so that the sealing ring 11 can be removed conveniently and lubricating oil can be poured between the outer ring 1 and the inner ring 2.

[0069] Specifically, one side of the inner surface of the outer ring 1 and the inner ring 2 is provided with an arc-shaped opening 17 .

[0070] In this embodiment: the arc-shaped opening 17 is provided, the arc-shaped opening 17 is connected to the outer bearing groove 3 and the inner bearing groove 4, and the gap between the two arc-shaped openings 17 is slightly smaller than the diameter of the ball rotor 7. When the ball rotor 7 is placed between the outer ring 1 and the inner ring 2, the ball rotor 7 is knocked into the space between the outer ring 1 and the inner ring 2 from between the two arc-shaped openings 17 with a hammer or a hard object.

[0071] Working principle and use process of the utility model: In this scheme, the outer ring 1 and the inner ring 2 can be sealed from both sides by means of two sealing rings 11, so that there will be no large gaps on the sides of the outer ring 1 and the inner ring 2, so that the lubricating oil added between the outer ring 1 and the inner ring 2 can better act on the multiple ball rotors 7, so that the multi-layer bearing composed of the outer ring 1, the inner ring 2 and the ball rotor 7 can be more smooth when used and can better act on the ship engine.

[0072] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. Multilayer bearing for marine machinery, characterized in that: include: Outer ring (1); An inner ring (2) is arranged inside the outer ring (1); A plurality of ball rotors (7) are provided and are arranged between the outer ring (1) and the inner ring (2); A fixing mechanism, arranged between the outer ring (1) and the inner ring (2), and used for fixing the plurality of ball rotors (7); Two sealing rings (11) are provided, which are respectively arranged on both sides of the inner ring (2) and are clamped between the outer ring (1) and the inner ring (2); The limiting mechanism is provided with two groups, which are respectively used to fix the two sealing rings (11) on the two sides of the inner ring (2).

2. The multi-layer bearing for marine machinery according to claim 1, characterized in that: The fixing mechanism comprises: Two fixing rings (5) are provided and are respectively located on both sides of the plurality of ball rotors (7); A plurality of engaging grooves (6) are provided, each of which is opened at the adjacent ends of the two fixing rings (5), and the plurality of engaging grooves (6) match the ball rotor (7); A connecting component is used to fix the two fixing rings (5).

3. The multi-layer bearing for a ship engine according to claim 2, characterized in that: The connecting component comprises: A plurality of threaded holes (8) are provided, each of which is opened at one side end of one of the fixing rings (5); A plurality of threaded sleeves (9) are provided, each of which is fixed to one side end of another of the fixing rings (5) and matches with the plurality of threaded holes (8); A plurality of screws (10) are provided, respectively passing through the plurality of threaded holes (8) and being threadedly connected in the plurality of threaded sleeves (9).

4. The multi-layer bearing for a marine engine according to claim 3, characterized in that: An outer bearing groove (3) is provided on the inner surface of the outer ring (1), and an inner bearing groove (4) is provided on the outer surface of the inner ring (2).

5. The multi-layer bearing for a marine engine according to claim 4, characterized in that: Each set of the limiting mechanisms comprises: Two countersunk grooves (15) are provided and are both opened at one side end of the inner ring (2); Two protrusions (12) are provided, each of which is fixed to the inner circumferential wall of one of the sealing rings (11), and the protrusions (12) match the countersunk grooves (15); Two clamping holes (13) are provided and are respectively opened on the two protrusions (12); Two clamping columns (16) are provided, which are respectively fixed in the two countersunk grooves (15) and interference-fitted in the two clamping holes (13).

6. The multi-layer bearing for a ship engine according to claim 5, characterized in that: The ends of the two sealing rings (11) that are away from each other are both provided with prying openings (14).

7. The multi-layer bearing for a ship engine according to claim 6, characterized in that: An arc-shaped opening (17) is provided on one side of the inner surface of the outer ring (1) and the inner ring (2).

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