Integrated water lubricated bearings for hub rim thrusters

Abstract

The invention discloses an integrated water-lubricated bearing for a propeller with a hub rim, which mainly consists of a thrust plate (2), a support ring (3), a shaft sleeve (7), rubber slats (8), paddles Hub copper sleeve (9) and thrust tile (21) form. Among them: the propeller hub copper sleeve is installed in the propeller hub (1), and a thrust disc is installed at both ends of the propeller hub, and a spiral flow channel (22) is processed on the thrust disc, and two supporting rings are respectively installed on the propeller shaft (6) On the connected leading vane hub (4) and trailing vane hub (19), sector-shaped grooves (33) on the support rings are fitted with thrust pads. Thrust shoe (21), thrust disc (2) and support ring (3) form thrust bearing. The rubber slats are vulcanized on the outer cylindrical surface of the shaft sleeve. The shaft sleeve (7), the rubber slats (8) and the propeller hub copper sleeve (9) form a combined radial bearing. The invention has the advantages of simple and compact structure, improved cooling effect of radial bearings and thrust bearings, bearing capacity and service life of radial bearings, and the like.

Description

technical field [0001] The invention belongs to the field of ship propellers, and in particular relates to an integrated design and installation process of a combined radial bearing and a thrust bearing of a propeller with a hub rim. Background technique [0002] The rim thruster has attracted more and more attention due to its many advantages such as low vibration, low noise, and saving the interior space of the cabin. At present, the rim thruster has two forms: hubless and hubless. The U.S. patent "Integral Motor PropulsorUnit For Water Vehicles" (US005220231A) is a hub rim propeller, the radial bearing is installed in the propeller hub, and the thrust bearing is installed on the propeller hub end face. The lubricating and cooling water flowing into the radial bearing is very limited, and it is difficult to achieve the lubricating and cooling effect; although there is a flow channel on the propeller hub behind the thrust disc, the water flow is completely natural; in order...

AI Technical Summary

Problems solved by technology

The lubricating and cooling water flowing into the radial bearing is very limited, and it is difficult to achieve the lubricating and cooling effect; although there is a flow channel on the propeller hub behind the thrust disc, the water flow is completely natural; in order to install the thrust disc on the propeller hub, Without destroying its thrust surface, a blind hole is processed on the surface opposite to the thrust surface, but this also increases the diameter of the propeller hub

[0003] The Chinese patent "Shaftless Driven Integrated Motor Propeller" (CN102632982A) also has a hub rim propeller. Its structure is simple, and the radial bearing is similar to the U.S. patent, but there is no separate lubricating water channel, and the lubricating and cooling performance is relatively poor, and In order to install the thrust plate on the propeller hub, a blind hole is opened on the thrust surface of the thrust plate, which destroys its working surface, which will reduce the bearing capacity of the thrust plate, increase the wear of the thrust pad, and shorten its life

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