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Combined contra-rotating paddle electric propulsion system

A technology of electric propulsion and counter-rotating propellers, which is applied in the direction of ship propulsion, propulsion components, propulsion device engines, etc., can solve the problems of low efficiency of electric propulsion, limited selection range, high price, etc., so as to improve the selection range and reduce Size and selection restrictions, effect of price reduction

Pending Publication Date: 2020-09-15
珠海市汉图达科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The electric propulsion system is a propulsion type that is powered by a generator set or a battery, driven by a motor and adjusted by a frequency converter or controller, but its electric propulsion efficiency is low and the structure is complex
The traditional propulsion type usually uses a high-power diesel engine to drive a large-diameter propeller through a shaft system or a gearbox. A single diesel engine is too powerful, large in size, medium in weight, and expensive, and the selection range is limited.

Method used

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  • Combined contra-rotating paddle electric propulsion system
  • Combined contra-rotating paddle electric propulsion system
  • Combined contra-rotating paddle electric propulsion system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1: as figure 1 As shown, in order to improve the propulsion efficiency and reduce the power configuration of a single propeller, the present invention adopts a new propulsion type in which two different electric propulsion types are combined. The propulsion system of the present invention is composed of a horizontal electric propulsion system composed of a horizontal motor-driven shafting and a propeller, and a rim type electric propulsion system. The first propeller of the horizontal electric propulsion system and the second propeller of the rim propeller rotate in opposite directions, forming a type of counter-rotating propellers, and the thrust direction is the same. The rim propeller is installed on the mounting flange of the rudder shaft of the ship's rudder system. The rudder system bears the weight of the propeller, and at the same time drives the rim propeller to swing the rudder, playing the role of rudder-propeller integration.

[0028] Wherein, th...

Embodiment 2

[0032] Embodiment 2: Different from Embodiment 1, as Figure 6 As shown, when a low-speed motor is used, a gear box may not be needed, and the first motor directly drives the shafting and the first propeller to rotate.

Embodiment 3

[0033] Embodiment 3: Different from Embodiment 1, as Figure 7 As shown, the rim-type propeller is fixed on the bottom of the ship without rudder swinging. Behind the rim-type propeller, the traditional rudder system + rudder blade structure is continued, and the rudder shaft is driven to swing through the rudder steering mechanism, which in turn drives the rudder blade to swing. Realize turning the rudder.

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PUM

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Abstract

The invention relates to a combined contra-rotating propeller electric propulsion system. The combined contra-rotating propeller electric propulsion system comprises a first motor, a shafting system,a first screw propeller and a rim type propeller. Propulsion efficiency is improved, the power of a large diesel engine which is high in price and limited in model selection range is delegated to a plurality of small-power generator sets through the mode of the electric propulsion system, so that a model selection range is expanded, and the initial installation cost of a power system is reduced. Arudder and propeller integrated type is adopted, the maneuverability of a ship is improved. The system is particularly suitable for medium and large ships.

Description

technical field [0001] The invention belongs to the technical field of marine turbine propulsion, and in particular relates to a combined counter-rotating propeller electric propulsion system. Background technique [0002] With the development of electric propulsion technology, electric propulsion systems are increasingly used on ships. The electric propulsion system is a propulsion type that is powered by a generator set or a battery, driven by an electric motor, and adjusted by a frequency converter or a controller. However, its electric propulsion efficiency is low and its structure is complex. The traditional propulsion type usually uses a high-power diesel engine to drive a large-diameter propeller through a shafting or gearbox. A single diesel engine is too powerful, large in size, medium in weight, and expensive, and the selection range is limited. Contents of the invention [0003] Aiming at the deficiencies in the prior art, the present invention proposes a combi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63H21/17B63H25/42
CPCB63H21/17B63H25/42B63H2025/425
Inventor 郑锐聪邱湘瑶肖燕燕郭望渠
Owner 珠海市汉图达科技有限公司
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