A kind of ship propeller blade assembly method
An assembly method and propeller technology, applied in the field of ships, can solve the problems affecting the completion time of the shafting, the 3' weight of the blades, and the high operation risk, and achieve the effects of reducing the operation intensity, the difficulty of installation, and the number of installations.
Active Publication Date: 2019-12-20
GUANGZHOU SHIPYARD INTERNATIONAL LTD
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Problems solved by technology
This installation method has the following defects (refer to figure 1 ): 1. Due to the large size and heavy weight of the blade 3′ of the propeller, the installation of the blade 3′ in the dock loading stage requires the cooperation of the truck crane 1′ throughout the whole process, and the hanging code 2′ on the outer plate needs to be used during the installation and positioning process And the manual hoist assists in pulling in and positioning. After installing a propeller 3', the propeller hub needs to be rotated again to turn the propeller 3' to the bottom end of the propeller hub, and the hanging code 2' needs to be temporarily installed on the hull plate above the propeller. , and the corresponding crane 2′ assembly and welding operation requires the full cooperation of the high-altitude vehicle; 2. The space near the propeller is limited, the area occupied by the high-altitude vehicle and the truck crane 1′ is relatively large, the cross operation is complicated, and the blade 3′ is heavy. The risk of the operation is relatively high, and the safety factor is poor; 3. Since the installation and positioning of the propeller 3′ in the dock takes a long time, it affects the time for the shafting to be completed, thereby restricting the dock cycle
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[0049] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only the technical solutions of the present invention. Some, but not all, embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.
[0050] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct...
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The invention discloses a ship propeller blade assembly method. A stern shaft is provided, a propeller hub of a propeller is mounted on the stern shaft, at least a part of propeller blades of the propeller is mounted on the propeller hub on the ground or platform, and the stern shaft is installed on a ship. A part of the blades is installed on the propeller hub of the propeller on the ground or platform in advance, the number of the blades installed is reduced after the stern shaft is installed on the ship as a whole, the operation intensity is reduced, the installation speed is increased, theblades installed in advance can provide installation reference for the remaining blades to be installed, the difficulty of installing the blades is reduced, and the pass rate after the blades are installed is improved.
Description
technical field [0001] The invention relates to the technical field of ships, in particular to a method for assembling ship propeller blades. Background technique [0002] Ships with double shafts and double propellers are generally long shafts, which require high precision and have more blades on the propellers. In order to control the accuracy of the shafting, the positioning and installation of the propeller blades of such twin-shaft twin-screw ships are generally carried out at the dock stage. The propeller blades will be positioned and installed after the wires are pulled to see the light at the dock stage. This installation method has the following defects (refer to figure 1 ): 1. Due to the large size and heavy weight of the blade 3′ of the propeller, the installation of the blade 3′ in the dock loading stage requires the cooperation of the truck crane 1′ throughout the whole process, and the hanging code 2′ on the outer plate needs to be used during the installatio...
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IPC IPC(8): B63B9/00
CPCB63B71/00
Inventor 姚杰谭继良吕岩郭建杰熊飞
Owner GUANGZHOU SHIPYARD INTERNATIONAL LTD