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Safe and energy-saving propeller

An energy-saving, propeller technology, applied in the direction of rotating propellers, rotary propellers, ship construction, etc., can solve the problems of high linear velocity of the propeller tip, scratch of the propeller tip, and reduce the efficiency of the propeller, so as to increase the reaction thrust section and stabilize the Good performance and wide range of speed adaptation

Active Publication Date: 2019-12-10
成都市陈式船舶研发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] During the rotation of the existing propeller, the tip of the propeller has a high linear velocity. At the same time, due to the small thickness of the propeller blade, when the creature touches the rotating propeller, it is easy to be scratched by the tip of the propeller.
Those skilled in the art solve this problem by installing a semi-enclosed protective cover outside the propeller. However, since the protective cover blocks the movement of the surrounding fluid, the efficiency of the propeller is reduced while achieving the purpose of protection.

Method used

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  • Safe and energy-saving propeller
  • Safe and energy-saving propeller

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] like Figure 1-4 As shown, a safe and energy-saving propeller includes a hub 1 as the inner ring and a protection ring 2 as the outer ring. The hub 1 and the protection ring 2 are coaxially arranged, and the space between the hub 1 and the protection ring 2 is uniform The paddle is provided with a blade, and the blade is an arc-shaped surface structure, and the blade is at a certain angle of inclination with the direction of motion of the propeller that is consistent with the motion direction of the ship; the blade root of the blade is connected to the hub 1, The tip of the blade is connected to the inner surface of the protection ring 2; the protection ring 2 is an arc-shaped symmetrical ring structure with the middle part concave inward;

[0047] The axial length of the propeller hub 1 is greater than the axial length of the protective ring 2, the front end surface of the protective ring 2 is arranged between the front end surface and the rear end surface of the prope...

example 2

[0057] This propeller will not cause fatal harm to people working and swimming underwater, and the cutting damage to various underwater fish and aquatic organisms will also be greatly reduced. Compared with conventional propellers, the probability of being entangled by aquatic plants and debris will also be reduced. a lot of. (Example 1: At 6:00 p.m. on September 10, 2016, Comrade Cao Moumou, deputy secretary of the Yanjiang District Committee of Ziyang City, Sichuan Province, was injured and killed by a conventional propeller blade of a high-speed speedboat while swimming underwater. Example 2: During the test period, Chen himself accidentally fell into the water and came into contact with the outer ring of the propeller with a speed of about 320 revolutions per minute. He felt that the propeller was lubricated in the water and did not cause any harm to the human body).

[0058] 2. Energy saving and environmental protection

[0059] 1. The blade is an arc-shaped surface stru...

Embodiment 2

[0074] This embodiment is a further improvement on the basis of Embodiment 1. The difference from Embodiment 1 is that each group of blades includes 2 auxiliary blades, and the two auxiliary blades are respectively arranged on the two main blades 3 of the same group. side. Experiments have proved that the propeller blades can also use the mode of nine blades and three groups, one main blade and two auxiliary blades, and the effect is better if two auxiliary blades and one main blade cooperate to move.

[0075] It should be noted that all features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner except for mutually exclusive features and / or steps.

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Abstract

The invention discloses a safe and energy-saving type propeller. The safe and energy-saving type propeller comprises a propeller hub serving as an inner ring and a protective ring serving as an outerring. The propeller hub and the protective ring are arranged coaxially. Three sets of propeller blades are evenly distributed between the propeller hub and the protective ring. Each propeller blade isof an arc-shaped curved surface structure, wherein a certain inclination angle is formed between the arc-shaped curved surface structure and the movement direction of the propeller. Blade roots of the propeller blades are connected with the propeller hub. Blade tips of the propeller blades are connected with the inner side surface of the protective ring. The protective ring is of an arc-shaped symmetrical round ring structure with the middle being concave inwards. The axial length of the propeller hub is larger than that of the protective ring. The front end face of the protective ring is arranged between the front end face and the rear end face of the propeller hub. The rear end face of the propeller hub is arranged between the front end face and the rear end face of the protective ring.Each set of propeller blades comprises a main blade and an auxiliary blade which are arranged uniformly. The front section part of each main blade is a bending part which bends towards the rotating direction of the propeller blades. The front end part of each auxiliary blade is an arc-shaped concave part being concave backwards. The safe and energy-saving type propeller is simple in structure, high in safety and good in energy saving performance.

Description

technical field [0001] The invention relates to the technical field of propellers, in particular to a safe and energy-saving propeller. Background technique [0002] A ship needs a kind of propulsion to sail on the water surface. The ship propeller is a tool that provides thrust for the ship. Its function is to convert the power provided by the ship's power plant into thrust to propel the ship forward. A propeller is a commonly used ship propeller. The propeller refers to a device that converts the rotational power of the engine into propulsion by rotating the blades in the water. There may be two or more blades connected to the hub. There are many types of propellers, and they are widely used, such as propellers for ships. [0003] During the rotation of the existing propeller, the tip of the propeller has a relatively high linear velocity. At the same time, because the thickness of the propeller blade is very small, when the living thing touches the rotating propeller, it...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B63H1/14B63H1/20B63H1/26B63H1/28B63H5/16
CPCB63H1/14B63H1/20B63H1/26B63H1/28B63H5/165B63H2001/145
Inventor 陈良奎
Owner 成都市陈式船舶研发有限公司
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