Ship propeller hub with front oil cylinder

Abstract

The invention discloses a ship propeller hub with a front oil cylinder. The ship propeller hub mainly comprises a hub body, a guide frame, a slide block, a paddle holder, a piston, an oil cylinder supporting baffle and a paddle shaft provided with a single oil tube, wherein the piston is positioned at the front end in the hub body; the hub body is connected with the paddle shaft by bolts; the hub body and a front-end oil cylinder are integrated into a whole; the piston is installed at the end part of the guide frame in the hub by bolts; the front end of the piston, the inner wall of the hub body and the end part of the paddle shaft form a front chamber; the rear end of the piston, the inner wall of the hub body and the oil cylinder supporting baffle form a rear chamber; the rear end of the oil cylinder supporting baffle and the hub body form a lubricating oil chamber; the disk root of the paddle holder is provided with a crank pin; the slide block is sheathed on the crank pin and is arranged in a chute in the middle of the guide frame; the slide block is movably connected with the crank pin and the chute; and the oil tube is communicated with the rear chamber and moves together with the guide frame when working. The ship propeller hub has the characteristics of compact structure, good reliability, good stability of system operation and the like.

Description

technical field [0001] The invention relates to a controllable pitch propeller of a ship propeller, in particular to a novel oil cylinder front-mounted propeller hub of a ship propeller which can be used for main propulsion, side thrust and full-turn propellers of a ship. Background technique [0002] The propeller hub is one of the core components of the controllable pitch propeller device. It is not only the bearing part of the propulsion power, but also the final actuator of the pitch control. Therefore, the reliability of the propeller hub is very important. figure 1 As shown, in the existing propeller hub, generally, the oil cylinder on the forward vehicle side is arranged on the right side of the oil cylinder, that is, chamber A, and the oil cylinder on the reverse side is arranged on the left side, namely chamber B. This structure has no independent lubricating oil chamber, or the reversing B chamber is regarded as a lubricating oil chamber, which not only puts higher...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is: in view of the absence of an independent lubricating oil chamber in the existing propeller hub, it not only puts forward higher requirements on the strength of the corresponding parts in the propeller hub, but also raises the requirements on the sealing of the propeller seat, greatly increasing the hydraulic pressure of the hydraulic system. The risk of leakage, which causes a series of problems such as increased risk of ship operation, provides a new type of propeller hub for front-mounted oil cylinders

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