High-precision ship propeller hydraulic static balancing instrument

Abstract

The invention discloses a high-precision ship propeller hydraulic static balancing instrument. The instrument comprises a balance base and a monitoring operator, a supporting cylinder is arranged at the top of the balance base; the bottom of the supporting cylinder is arranged in a ball shape; the sliding inlay is arranged in the balance base; the supporting cylinder extends to the top through themiddle of the fastening neck and is fixedly connected with a first centering cone; the top of the first centering cone is fixedly connected with a connecting cylinder, one end of the top of the connecting cylinder is sleeved with a second centering cone in a sliding mode, the section, located on the fastening neck, of the supporting cylinder is provided with a magnetic suspension device and a power device, and a plurality of limiting devices are arranged on the top of the fastening neck and located on the periphery of the first centering cone. By arranging the magnetic suspension device and the power device, the unbalance state of the propeller during movement can be amplified, grinding and correction are conducted multiple times, the corrected propeller can be tested, and therefore high-precision correction is achieved, and the situation that later rework affects the balance test efficiency is prevented.

Description

technical field [0001] The invention relates to the technical field of ship equipment, in particular to a high-precision ship propeller hydraulic static balancer. Background technique [0002] The propeller is one of the typical representatives of large rotors. With the advancement of shipbuilding technology, the trend of high speed and large size is becoming more and more obvious, which poses new problems for the manufacture, design and testing of marine propellers. The unbalanced mass of the propeller must be controlled within the allowable range, otherwise the inertial centrifugal force generated by it is a problem that cannot be ignored. This inertial centrifugal force can cause harm in many ways. [0003] The rolling method of the balance shaft to measure the static balance of the propeller is the most commonly used method in the early propeller manufacturers, and some manufacturers are still using it now. This kind of device is relatively intuitive and simple, and it...

AI Technical Summary

Problems solved by technology

[0004] The existing problems are: the operation is extremely inconvenient, the large propeller weighs several tons to hundreds of tons, the mandrel weighs about 1 ton, and the other accessories need more than two people to move, and the assembly is cumbersome, laborious, time-consuming, and There are potential safety hazards, and in the measurement process, the measurement method is generally side force, the measurement error is large, and it is impossible to achieve high-precision balance measurement

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