Device and method for repairing marine adjustable pitch oar

Abstract

The invention discloses a device and a method for repairing a marine adjustable pitch oar. The device comprises an oar blade pitch measuring device and an oar blade locking device, wherein the oar blade pitch measuring device comprises a hollow fixed shaft and a measuring arm frame which is vertically and fixedly arranged with the hollow fixed shaft; the oar blade locking device comprises a rotating shaft; and the hollow fixed shaft is fixedly connected with the rotating shaft, so that the measuring arm frame can make circumferential rotation around the hollow fixed shaft. The invention also discloses a method for repairing the marine adjustable pitch oar on the basis of the repair device. By the repair device and the repair method, after four oar blades, the locking device of the device for repairing the adjustable pitch oar and the like are assembled integrally, the four oar blades are subjected to the measurement of screw pitches on a circular arc in the same circumferential direction, so the measuring accuracy is high. In addition, the oar blade locking device in the repair device can also be used for the static balancing tests of the adjustable pitch oar to eliminate imbalanced weight error formed after the oar blades are welded and repaired.

Description

Technical field [0001] The invention relates to a repairing device and a repairing method for a ship's propeller blade, in particular to a repairing device that can lock the propeller blade at a zero degree position, and prevent the propeller from rotating when measuring the pitch of the propeller, thereby improving the propeller. Repair device and repair method for the accuracy of pitch measurement and correction. In addition, the blade locking device in this device can also be used for static balance test to correct the unbalanced weight of the adjustable pitch propeller after the blade welding repair. Background technique [0002] In the prior art, it is quite difficult to repair the controllable pitch propeller device after it is damaged, and the technical requirements are also quite high. Especially after the important parts such as the hub and blades of the controllable pitch propeller device are damaged, it is more difficult to repair. In the past repairs only simple corr...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the defects that the repair device of the adjustable pitch propeller in the prior art has a complex structure and cannot correct the blade pitch of the adjustable pitch propeller and the correction of the unbalanced weight, and provides a When repairing the blade of the adjustable pitch propeller, the repair device and repair method of the adjustable pitch propeller for ships can accurately measure the pitch height of the blade and correct the unbalanced weight of the adjustable pitch propeller

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