Multilayer composite material water lubricated bearing with gradually-expanded end face
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A multi-layer composite material, water-lubricated bearing technology, applied in the field of bearings, can solve the problems of insufficient load sharing and vibration damping capacity, large friction, etc., to improve load sharing and vibration damping performance, improve friction performance, and avoid end friction. Effect
Pending Publication Date: 2021-08-03
HOHAI UNIV CHANGZHOU
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Abstract
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Problems solved by technology
[0004] The technical problem to be solved by the present invention is: to overcome the deficiencies of the prior art, to provide a water-lubricated bearing with a multi-layer composite material with gradually expanding end faces, and to solve the problems of large friction, load sharing and insufficient vibration damping capacity in the previous water-lubricated bearings
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Embodiment 1
[0031] Such as figure 1 figure 2 As shown, a water-lubricated bearing with a multi-layer composite material with gradually expanding end faces, including a metal matrix 3 and a polymer lining 2, and the polymer lining 2 is arranged in the metal matrix 3;
[0032] Both the left end face and the right end face of the polymer liner 2 are provided with gradually expanding holes 21; the gradually expanding holes 21 can also be provided on one side;
[0033] A supporting cavity is opened in the metal base 3, and the supporting cavity is a semi-circular structure;
[0034] A rubber support 4 is arranged in the support cavity to support the polymer liner 2 .
[0035] In this embodiment, the support member 4 is a non-uniform thickness member, and the inner wall surface of the gradually expanding hole 21 is a single slope, multiple slopes or a curved surface. Such as image 3 , Figure 4 , Figure 5 shown.
[0036] In this embodiment, the supporting member 4 is a triangular stru...
Embodiment 2
[0038] Such as Image 6 Figure 7 As shown, this embodiment is based on the first embodiment, the difference is that: the support cavity is a ring structure; the third embodiment
[0039] Such as Figure 8 As shown, this embodiment is based on the first embodiment, the difference is that: the supporting member 4 is a member of equal thickness, and the supporting cavity can be a circular or semi-circular structure.
Embodiment 4
[0041] Such as Figure 9 As shown, this embodiment is based on the first embodiment, and the difference is that the supporting cavity is a ring structure. The supporting member 4 is a trapezoidal structure.
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Abstract
The invention relates to a multilayer composite material water lubricated bearing with a gradually-expanded end face, which comprises a metal matrix and a polymer lining, and the polymer lining is arranged in the metal matrix; gradually expanded holes are arranged on the left end surface and / or the right end surface of the polymer lining; a supporting cavity is arranged in the metal matrix and is of an annular or semi-annular structure; and a rubber layer supporting piece is arranged in the supporting cavity so as to support the polymer lining. According to the water-lubricated bearing provided by the invention, the uniform load and vibration reduction performance of the bearing is improved through a rubber layer, the friction performance of the bearing can be improved due to the fact that the polymer lining has the characteristic of being small in friction coefficient, end friction of the bearing is avoided through the end gradually-expanded hole structure, the friction performance is improved, and a complete liquid film is easily generated on the bearing.
Description
technical field [0001] The invention relates to the field of bearings, in particular to a multi-layer composite material water lubricated bearing with gradually expanding end faces. Background technique [0002] Water-lubricated bearings are commonly used supporting parts in ships. They are soaked in water and use natural water as the lubricating medium to bear the load of the propeller shaft. At present, the commonly used structure of water-lubricated bearings is a double-layer structure, that is, the structure of metal matrix + polymer layer or the structure of metal matrix + rubber layer. The structure of metal matrix + polymer layer has the disadvantages of poor load sharing and vibration damping performance. The structure of the metal matrix + rubber layer has greater friction. [0003] To sum up, the current water-lubricated bearings have the problems of high friction, insufficient load equalization and vibration reduction capabilities. Contents of the invention ...
Claims
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Application Information
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