Transmission connection device of tubular reversing propellers

Abstract

The invention discloses a transmission connection device of tubular reversing propellers. The device comprises a ship body, water channels and the tubular reversing propellers. The left side and the right side of the ship body are provided with the water channels respectively. The tubular reversing propellers are arranged in the water channels. A sliding groove on one side of the ship body is provided with a butt joint hole. A movable butt joint sleeve is arranged in the butt joint hole. A plurality of sealing rings A are arranged between the movable butt joint sleeve and the butt joint hole. A fixing bolt A is arranged in the movable butt joint sleeve. A fixing bolt B is arranged on the outer ring of the movable butt joint sleeve. A connection hole is formed in the movable butt joint sleeve. A lining is arranged in the connection hole. The outer end of the movable butt joint sleeve is provided with a sealing outer cover and further provided with a temporary sealing cover B. The tubular reversing propellers can be rapidly, easily and safely assembled and disassembled under water, loss of energy power transmission is effectively reduced, streaming loss of a paddle tip is limited, propeller rear wake flow rotation loss is reduced, large power is absorbed, vibration is reduced and vacuoles are avoided.

Description

technical field [0001] The invention relates to a ship propeller, in particular to a transmission connection device between a tubular reverse propeller and an engine inside a hull. Background technique [0002] The most feared thing for medium and large ships sailing on the sea is the failure and maintenance of the shafting of the ship. Due to the failure of the engine, it can be repaired inside the hull, but the shafting failure of medium and large ships must be repaired in the dry dock; traditional ships The propeller is set at the rear end of the ship. Although the rear end of the ship is located in a large position, a propeller with a larger diameter can be installed, but the water flow driven by the propeller is blocked by the front hull to a certain extent, and its shafting is longer, so the shafting The torque of the shaft will increase, and the design and manufacturing requirements for the shafting will also increase, and the speed of the propeller should not be too ...

AI Technical Summary

Problems solved by technology

[0002] The most feared thing for medium and large ships sailing on the sea is the failure and maintenance of the shafting of the ship. Due to the failure of the engine, it can be repaired inside the hull, but the shafting failure of medium and large ships must be repaired in the dry dock; traditional ships The propeller is set at the rear end of the ship. Although the rear end of the ship is located in a large position, a propeller with a larger diameter can be installed, but the water flow driven by the propeller is blocked by the front hull to a certain extent, and its shafting is longer, so the shafting The torque of the shaft will increase, and the design and manufacturing requirements for the shafting will also increase, and the speed of the propeller should not be too fast, which will easily cause cavitation, and it is also very inconvenient to install and disassemble the shafting and propeller for maintenance;

[0003] The Chinese patent application number CN201310338486.5 discloses a ship propeller and a method for setting and dismounting the propeller; the ship propeller of the embodiment of the present invention includes: a rear propeller, fixed on a rotating shaft; a front propeller, It is rotatably supported by the rotating shaft in front of the rear propeller; the reverse rotating device reverses the rotation of the rotating shaft and transmits it to the front propeller, and is installed in the installation space at the rear of the hull; the propeller connector connects the reverse rotating device and the front The propeller transmits the rotational force; the thrust support device is set between the reverse rotation device and the propeller connector to support the thrust of the front propeller; its design is the traditional internal and external coaxial design behind the hull, and the structure is complex. It is difficult to install and disassemble underwater;

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