Full-scale marine propulsion shafting vibration transmission characteristic testing device

Abstract

The invention relates to a land full-scale marine propulsion shafting vibration transmission characteristic testing device. The full-scale marine propulsion shafting vibration transmission characteristic testing device is constituted by a basis platform, a direct current motor, a high elasticity coupling, a thrust bearing unit, a middle shaft, a propulsion shaft, a bow bearing, a midship bearing, a stern bearing, a propeller simulation block, an axial static thrust loading device, a dynamic force loading device, a torsion loading device, a sealing device, a shafting centering adjusting device, a bearing base dynamic force testing element, matched bases of various parts, and a lubricating and cooling device. The matched bases of the various parts are disposed on the basis platform, and the base is provided with the main parts and the matched fittings of the propulsion shafting. The axial static thrust loading, the axial and radial dynamic force loading, and the torsion load are realized during the rotation of the shafting, and at the same time, a shafting centering state adjusting function is provided, and bearing support reaction measurement, base vibration measurement, and shafting vibration and transmission characteristic tests in different centering states are realized.

Description

technical field [0001] The invention relates to a test device for vibration transmission characteristics of a full-scale ship propulsion shafting system. Background technique [0002] The propulsion shafting is an important link in the power plant of the ship system. Its main function is to transmit the power from the main engine of the ship to the propeller to make the propeller rotate, and at the same time transmit the thrust generated when the propeller rotates to the hull through the thrust bearing to propel the ship. sailing. [0003] Ship propulsion shafting is prone to various vibrations due to various reasons, such as uneven torque transmission of the main engine, misalignment of installation, uneven material, inaccurate processing, and unbalanced weight of the shafting, etc. Torsional vibration and lateral vibration; and because the propeller of the ship rotates in the uneven flow field at the stern, the uneven thrust can cause the shafting to generate longitudinal...

AI Technical Summary

Problems solved by technology

However, in order to study the shafting vibration transmission characteristics of the ship's propulsion shafting under actual operating conditions and to study the influence of the shafting state on the shafting vibration, the existing test devices have certain defects.

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