THE AUTOMATIC PITCH MEASURING AND MARKING DEVICE OF PROPELLER FOR SHIP

摘要

A propeller pitch-automatic measurement and marking device for a ship is provided to enable application by utilizing one measurement device even in various changes of the size of propeller blades and to secure automation of measurement and reliability of measurement result. A propeller pitch-automatic measurement and marking device for a ship has a fixed frame(18) having the lower end to be mounted/detached to/from a boss(12) of a propeller, and a rotating frame(19) rotatable on the fixed frame. A lug(21) is installed to the upper part of the rotating frame, for carriage to a crane. A boom(20) formed in the longitudinal direction of a cantilever shape around the rotating frame interlocks and rotates. The propeller pitch-automatic measurement and marking device has a traveling structure(24) horizontally moving on the boom and an ascending and descending shaft(23) passing through the traveling structure and having a sensor and a marking head part(30) installed to one end. The circumferential rotation, radial horizontal movement, and vertical movement of the propeller are possible in measuring a pitch of the propeller.