Screw-propeller lifting and reversing arrangement

Abstract

The invention discloses a screw propeller elevating and reversing device, which comprises a screw propeller, wherein the screw propeller is connected with the lower end of an elevating rod, the elevating rod is arranged in a rotary sleeve, the arrangement of the elevating rod and the rotary sleeve is that the elevating rod can move up and down in the rotary sleeve, the elevating rod and the rotarysleeve can not inter-rotate, the rotary sleeve is movably arranged in a fixing sleeve at the stern end, the upper end of the rotary sleeve extends outside the fixing sleeve, a reversing rod is disposed in the rotary sleeve portion which extends outside the fixing sleeve, the reversing rod is connected with a piston rod of a hydraulic cylinder installed at the stern end, the upper end of the elevating rod is connected with a piston rod of another hydraulic cylinder fixed on the rotary sleeve by a connecting support. The screw propeller elevating and reversing device has the advantages of enabling a screw propeller to elevate and reverse rapidly, removing trash or foreign materials entwined on the screw propeller, which has convenient operation, high mechanization and guarantees normal navigation and operation of water surface cleaning and collecting ships.

Description

technical field [0001] The utility model relates to a water surface cleaning and collecting ship, in particular to a propeller lifting and reversing device used on the water surface cleaning and collecting ship. Background technique [0002] In the shallow water area of ​​the inland river, there are many underwater garbage and sundries. When the water surface cleaning and collection ship is operating, the propeller is easily entangled by garbage or sundries. The existing propellers are fixed on the stern of the ship, and the propellers generally extend into the The bottom of the water cannot move up and down. Therefore, the garbage or sundries wrapped on the propeller cannot be removed in time, which affects the navigation and operation of the ship. Utility model content [0003] The technical problem to be solved by the utility model is to provide a propeller lifting and reversing device which can rapidly lift and reversing the propeller. [0004] In order to solve the a...

AI Technical Summary

Problems solved by technology

[0002] In the shallow water area of ​​the inland river, there are many underwater garbage and sundries. When the water surface cleaning and collection ship is operating, the propellers are easily entangled by garbage or sundries. The existing propellers are fixed on the stern of the ship, and the propellers generally extend into the The bottom of the water cannot move up and down. Therefore, the garbage or sundries wrapped on the propeller cannot be removed in time, which will affect the navigation and operation of the ship.

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