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Gear drive type blade pitch regulating mechanism and blade pitch regulating method

A technology of pitch adjustment and gear transmission, used in ship propulsion, ship parts, ships, etc., can solve the problems of difficult rotation angle adjustment, poor data reproducibility, low accuracy, etc., achieving no axial displacement, good stability, Adjust the effect of turning light

Active Publication Date: 2009-04-29
SHANGHAI ZHUGUANG MACHINERY +1
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0010] At present, in the actual test / experimental link, the common / known method of adjusting the pitch of the model adjustable propeller (actually adjusting the angle of rotation of the propeller blade relative to a certain reference plane) is to use manual pitch / angle adjustment method, which uses a combination of scales, reticles and magnifying glasses for alignment and positioning, and its rotation angle is difficult to adjust, with low accuracy, laborious, time-consuming, low efficiency, and poor data reproducibility

Method used

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  • Gear drive type blade pitch regulating mechanism and blade pitch regulating method
  • Gear drive type blade pitch regulating mechanism and blade pitch regulating method

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Embodiment Construction

[0035] The present invention will be further described below in conjunction with the accompanying drawings.

[0036] figure 1 Among them, the gear-driven blade pitch adjustment mechanism includes a propeller hub and a propeller blade 4-1, the root of the propeller blade is provided with a root shaft 4-2 extending into the propeller hub, and the propeller hub passes through the propeller root The shaft is connected to the paddle, and the point of the invention is that the paddle hub includes a first half paddle hub 1 and a second half paddle hub 6, and the first and second half paddle hubs are of Hafu type structure; The second half of the propeller hub is equipped with a propeller hub fixing screw 8, which consolidates the split first and second half propeller hubs that are buckled opposite to each other; on the shaft at the root of the blade and the first half propeller hub, a gear transmission Type blade pitch adjustment assembly; at the end of the blade root shaft, a posit...

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Abstract

A gear driving style blade pitch adjusting mechanism and a corresponding blade pitch adjusting method belong to the watercraft propulsion apparatus field. The blade pitch adjusting mechanism comprises a propeller hub and blades; a root shaft is arranged at the root of blade; the propeller hub appears as a pair-style structure formed by a first sub propeller hub and a second sub propeller hub; a propeller hub fastening screw is respectively arranged onto the first and second sub propeller hubs; a gear driving style blade pitch adjusting component is arranged onto the blade root shaft and the first sub propeller hub; a locating ring is arranged at the end of the blade root shaft; and a locating groove is correspondingly arranged on the first and second sub propeller hubs. The invention also provides a blade pitch adjusting method for the mechanism. The technical proposal of the invention is provided with the simple structure, convenient operation process, stable and reliable performance, high blade pitch locating precision and high blade pitch adjusting efficiency. The invention can be widely used for the designing, developing and testing fields of adjustable propellers of various models.

Description

technical field [0001] The invention belongs to the field of propulsion devices or steering devices of ships, and in particular relates to a propeller blade pitch adjustment device used for design, development and test of model adjustable propellers. Background technique [0002] Ship propulsion plays a decisive role in the economy of ship operation. The most important parameters when selecting a ship's propulsion system are investment costs, space requirements, propulsion efficiency or corresponding fuel consumption rate, reliability and effective utilization of the propulsion system during ship operation. [0003] In the design of ship propulsion equipment, the interaction between the engine, propeller and ship hydrodynamic characteristics is of special significance; only when their combination is considered and the overall system configuration is optimal, the ship propulsion system can be called cost Reasonable. [0004] Reducing ship resistance, improving the hydrodyna...

Claims

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Application Information

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IPC IPC(8): B63H3/00B63B9/00
Inventor 金文达吴俊谢永忠
Owner SHANGHAI ZHUGUANG MACHINERY
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