Integral propeller hub body of marine propeller

Abstract

The invention discloses an integral propeller hub body of a marine propeller. The integral propeller hub body comprise an oil cylinder body, a spherical part and a cylindrical part which are integrally arranged in sequence, wherein inner cavities are respectively opened on the oil cylinder body, the spherical part and the cylindrical part along the axial lines; at the same time, the inner cavity opened on the spherical part is arranged in a regular prism manner; a wear-resistant ring groove and a Glyd ring groove are respectively opened at the junctions of the inner cavities of the oil cylinder body and the spherical part; a round window is opened on each side surface of the regular prism, oil grooves are opened on the internal and external end surfaces and an inner hole of each round window, and an O-shaped ring groove is opened on the external end surface of each round window; the end surface of the cylindrical part is provided with a pin hole and a thread hole; oil pressure detection ports are respectively opened on the end surface of the oil cylinder body and the outer circle of the spherical part; and three installation holes are uniformly distributed on at least circumferential direction of the outer circle of the spherical part. Therefore, by adopting the integral propeller hub body disclosed by the invention, the processing requirement is reduced, the connecting bolt is not used, the installation is convenient, and the leakage probability of hydraulic oil in the propeller hub body is reduced.

Description

technical field [0001] The present invention relates to a propeller hub, especially a ship propeller integral propeller hub body that can be applied to main propellers, side thrusters and azimuth propellers, and is used to connect the propeller and the shafting, and connect the shafting The torque of the propeller is transmitted to the propeller, and the thrust generated by the propeller is transmitted to the shafting. The utility model belongs to the field of ship propulsion devices. Background technique [0002] The hub body is a key part of the propulsion system of the propeller ship. Once something goes wrong, it will cause huge losses to the ship. The ship hub commonly used in the prior art, such as figure 1 As shown, the propeller hub body and the oil cylinder body are two independent copper castings, which are usually fastened together by connecting bolts. For the hub body of this structure, since the screws are exposed in the water, the material of the screws can o...

AI Technical Summary

Problems solved by technology

For the hub body of this structure, since the screws are exposed in the water, the material of the screws can only be stainless steel, which is limited in strength

During use, when the force on the propeller increases and the screw is pressurized, the plastic deformation of the screw will occur, resulting in a gap between the cylinder body and the propeller hub body, resulting in leakage

On the other hand, the propeller hub body and the oil cylinder body are processed separately. After they are assembled, the accumulative error in the processing of the two parts may cause the oil cylinder to be installed eccentrically, resulting in a large leakage

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