An intermediate bearing for a ship

Abstract

The invention relates to the field of marine shafting support components, and discloses an intermediate bearing for marine use, comprising a bearing housing, a rotating shaft, a bearing support, a lower bearing bush, an upper bearing bush, a lubricating groove, and an oil slinger. Inside the bearing shell, the bearing support is provided with a lower bearing bush and an upper bearing bush, the rotating shaft is sleeved between the lower bearing bush and the upper bearing bush, the oil slinger is fixedly sleeved on the rotating shaft, and the top of the upper bearing bush is provided with a lubrication groove. The intermediate bearing for ships uses the annular sleeve on the outside of the oil slinger to separate the lubricating oil before and after lubrication into a return cavity and a cooling cavity, and uses the pressure and pumping actions of the oil pressure device to intermittently control the hot oil in the return cavity. Enter the cooling cavity for cooling, which prevents the hot oil returning from the existing intermediate bearing from directly contacting the cold lubricating oil to be lubricated after lubrication, so that the overall temperature of the lubricating oil to be lubricated rises, and the oil temperature is not effectively cooled. Lubrication makes the problem of poor subsequent lubrication effect.

Description

technical field [0001] The invention relates to the field of marine shafting support components, in particular to an intermediate bearing for ships. Background technique [0002] The intermediate bearing is the main supporting unit of the ship's shafting, and it bears a large load during the working process. Since the performance of the intermediate bearing will directly affect the dynamic performance of the ship's propulsion system, it is necessary to ensure the relatively high performance of the intermediate bearing. Good lubrication effect determines the performance and service life of the intermediate bearing. [0003] The existing intermediate shaft is designed with an oil thrower that rotates with the rotating shaft. During the rotation of the oil thrower, the lower part of the oil thrower is immersed in the lubricating oil, so that part of the lubricating oil is brought to the oil hopper on the upper part of the bearing with the oil brush In the middle, it flows into...

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Problems solved by technology

[0004] However, since the temperature of the lubricating oil is relatively high after lubricating the various parts of the bearing, the high-temperature lubricating oil in the existing intermediate bearing directly flows back and contacts the cold oil to be lubricated, resulting in the communication between the cold lubricating oil to be lubricated and the cooling coil. When the cooling water enters, the hot lubricating oil will absorb heat, so that the overall temperature of the lubricating oil to be lubricated will rise, and part of the oil will be re-lubricated without effective cooling, which will make the subsequent lubrication effect poorer and affect the service life of the intermediate bearing. , and because the oil thrower is immersed in the lubricating oil, when the oil thrower rotates faster with the rotating shaft, there is also severe friction between the oil thrower and the lubricating oil in the intermediate bearing, resulting in an increase in the temperature of the overall lubricating oil due to friction , the problem that affects the subsequent lubrication effect

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