CN2878200Y

CN2878200Y - Screw propeller energy-saving flow-guiding canister for boat

Info

Publication number: CN2878200Y
Application number: CN 200620110062
Authority: CN
Inventors: 赵学志
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-03-07
Filing date: 2006-03-07
Publication date: 2007-03-14
Anticipated expiration: 2016-03-07

Abstract

The utility model relates to an energy-saving guide shell for a marine propeller. A front conical drum 1 and a rear conical drum 2 which are provided with larger front and smaller rear are welded to form an integrated body, three bracket welding blocks 3 are respectively distributed on the front conical drum 1 and the rear conical drum 2. A propeller 5 is arranged in a front cavity of the rear conical drum 2 when in assembling, and is fixedly welded under a boat body 4 through a bracket 6. The marine propeller with the novel guide shell can enlarge the propulsive force of the water along the axial direction because the backward propulsive force which is generated to water is concentrated in the cavity when in rotation, so the energy can be fully and effectively used to motivate boat forwards, thereby saving energy, avoiding generation of bubbles produced by water flow, and eliminating noises caused by bubbles.

Description

The energy-conservation guide shell of marine propeller

One, technical field

The utility model belongs to the what equipment relevant with ship, is specifically related to the accessory of marine propeller.

Two, background technology

At present, the screw propeller of installing on power driven vessel does not assemble guide shell.Like this, screw propeller rotates the thrust that is produced in water, the main outermost that all concentrates on screw propeller, the flow direction of most of water is not to be parallel to rotor shaft to flow backward, the thrust that screw propeller rotate to produce produce in the periphery very big one to extraradial component, thereby making the power system waste of power of ship bigger, energy can not fully be effectively utilized to be promoted hull and advances.

Three, summary of the invention

Do not have the existing above-mentioned defective of guide shell at existing motor-driven marine propeller, intend, so that improve the energy effective utilization rate of ship power system, energy efficient to power driven vessel designs the energy-conservation guide shell of a kind of marine propeller.

Technical solution adopted in the utility model is as follows.

The energy-conservation guide shell of a kind of marine propeller, it is welded as a whole by pre-large post-small preceding tapered barrel and back tapered barrel coupling; And on preceding tapered barrel and back tapered barrel, be laid with 3 support welding blocks respectively.

The marine propeller of the utility model structure is energy-conservation, when assembling screw propeller is placed in the anterior hollow of back tapered barrel, is weldingly fixed under the hull by support.Be equipped with the marine propeller of the utility model guide shell, when rotating the thrust backward that current produced all concentrated in the cylindrical shell, current thrust is vertically increased, energy can fully be effectively utilized fork-like farm tool used in ancient China promotion hull and be advanced, thereby has saved energy consumption; It can avoid current to produce cavity simultaneously, has eliminated the noise that is caused by cavity.

Four, description of drawings

Fig. 1 is the sectional structure scheme drawing of the energy-conservation guide shell of the utility model marine propeller;

Fig. 2 is the right sight plane structural representation of the energy-conservation guide shell of the utility model marine propeller;

Fig. 3 is that the energy-conservation guide shell of the utility model marine propeller is assemblied in the structural representation on the hull.

In the drawings, 1-preceding tapered barrel, 2-back tapered barrel, 3-support welding block, 4-hull, 5-screw propeller, 6-support.

Five, the specific embodiment

Further specify the concrete structure of the energy-conservation guide shell of the utility model marine propeller below in conjunction with accompanying drawing, and the assembling annexation of it and hull and screw propeller.

The energy-conservation guide shell of a kind of marine propeller is characterized in that: it is welded as a whole by pre-large post-small preceding tapered barrel 1 and back tapered barrel 2 couplings; And on preceding tapered barrel 1 and back tapered barrel 2, be laid with 3 support welding blocks 3 respectively.

When assembling, screw propeller 5 is placed in the tapered barrel 2 anterior hollows of back, be weldingly fixed on hull 4 times by support 6.

Claims

1, the energy-conservation guide shell of a kind of marine propeller is characterized in that: it is welded as a whole by pre-large post-small preceding tapered barrel (1) and back tapered barrel (2) coupling; And on preceding tapered barrel (1) and back tapered barrel (2), be laid with 3 support welding blocks (3) respectively.