Self-aligning spherical plain water lubricated tail bearing for ships

Abstract

The invention relates to a self-aligning spherical plain water lubricated tail bearing for ships. The tail bearing is provided with two rubbing pairs, wherein an inner ring (9) and an outer ring (4) are a rubbing pair in spherical contact and are lubricated by grease; the inner ring (9) is provided with linings (7) and is fixedly connected with the linings; the linings (7) and a tail shaft (8) are a rubbing pair and are lubricated by water; and when the tail shaft (8) runs in the linings (7), the inner ring (9) automatically regulates the axis of the bearing along with the shift of the tail shaft (8) to ensure the requirement for coaxiality of the tail shaft (8) and the tail bearing and uniform distribution of pressure on the linings (7). The invention has the function of regulating the coaxiality of the tail bearing and the tail shaft automatically, enables the bearing to endure greater radial force, has simple structure, can avoid edge effect effectively, enables the pressure peak value to descend, and can lead overall distribution of the pressure to tend to be uniform.

Description

technical field [0001] The invention relates to the field of bearings, in particular to a marine self-aligning spherical sliding water-lubricated stern bearing. Background technique [0002] The ship stern bearing is used to support the tail shaft and is an important part of the ship shafting. The traditional stern bearing is an ordinary cylindrical sliding bearing, which is fixedly connected with the bearing housing during installation. After the ship shafting is installed, due to the influence of the self-weight of the propeller and the poor alignment of the ship shafting, the stern bearing and the stern shaft will have The large coaxiality error causes partial overload of the stern bearing, aggravated wear, causes vibration of the ship's shafting, generates noise, and seriously affects the safety and comfort of the ship's navigation. [0003] The traditional sliding water lubricated stern bearing without self-aligning function has a structure such as image 3 and Figur...

AI Technical Summary

Problems solved by technology

The traditional stern bearing is an ordinary cylindrical sliding bearing, which is fixedly connected with the bearing housing during installation. After the ship shafting is installed, due to the influence of the self-weight of the propeller and the poor alignment of the ship shafting, the stern bearing and the stern shaft will have The large coaxiality error causes partial overload of the stern bearing, aggravated wear, causes vibration of the ship's shafting, generates noise, and seriously affects the safety and comfort of the ship's navigation.

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