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 repair device and method for a marine propeller, in particular to a repair device that can lock the propeller at the zero-degree position, prevent the propeller from rotating when measuring the pitch of the propeller, and improve the A repairing device and a repairing method for accuracy of pitch measurement and correction. In addition, the blade locking device in this device can also be used for static balance test, and correct the unbalanced weight of the adjustable pitch propeller after the blade is welded and repaired. Background technique [0002] In the prior art, it is quite difficult to repair the damaged adjustable pitch propeller device, and the technical requirements are also quite high. In particular, after damage to important components such as the propeller hub and propeller blades in the adjustable pitch propeller device, it is more difficult to repair. In the past repairs, only simple corrections were made to...

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

Images