CN206615373U

CN206615373U - Propeller and propulsion plant

Info

Publication number: CN206615373U
Application number: CN201720299188.3U
Authority: CN
Inventors: 陈立
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-06-22
Filing date: 2017-03-24
Publication date: 2017-11-07
Anticipated expiration: 2027-03-24

Abstract

The utility model provides a kind of propeller and propulsion plant, is related to the technical field of propulsion plant in fluid, and propeller includes blade and oar axle；Blade is in strip；The first end of blade and oar axle direct or indirect connection, circumferential skewing of the blade along oar axle；The angle on one side of the line and the oar axle extended with blade bending bearing of trend equidirectional at blade first end and the second end is acute angle.In use, when rotated, blade makees circumferential movement to propeller around oar axle, forms the cavity of a semi-surrounding；Blade is cut and pushed to fluid, fluid is flowed in cavity；Blade rotates the curved card to be formed so that the area that fluid flows into cavity is more than the area flowed out, assembles in cavity, produces certain high pressure, and then the fluid high-speed of inflow is sprayed, and duct effect is formed, so as to produce larger thrust.

Description

Propeller and propulsion plant

Technical field

The utility model is related to propulsion plant field in fluid, more particularly, to a kind of propeller and propulsion plant.

Background technology

Propeller refers to rotate in air or water by blade, and engine rotation power is converted into the device of propulsive force. Propeller is divided into many kinds, using also quite varied, such as propeller of aircraft, steamer.

Propeller is made up of the output shaft of blade, propeller hub and motor.Wherein, two panels or multi-disc are consolidated in the blade of aplysia punctata It is scheduled on propeller hub, propeller hub directs or through decelerator on the output shaft of motor.In use, motor Output shaft drives propeller hub to rotate, so as to drive blade to rotate, cutting fluid when blade rotates, and then produces pushing away forward or backward Enter power, aircraft or steamer is advanced or is retreated.

When rotated, blade does circumferential movement to propeller around the output shaft of motor, forms the cavity of a semi-surrounding, Blade is cut and pushed to fluid, fluid is flowed in cavity；Blade rotates the curved card to be formed so that fluid is flowed into The area of cavity is more than the area of outflow, assembles in cavity, produces certain high pressure, and then fluid high-speed is sprayed, and produces Larger thrust, as duct effect.

At present, in use, wind surface when blade rotates is in planar rondure, it is difficult to form duct effect, even if Improve the angle of attack, useful lift is still limited.If installing culvert device additional, then weight, resistance and the cost of complete machine all can be Increase.

From the foregoing, it will be observed that isolated blade of the prior art can not form duct effect, the propulsive force of generation is smaller.

Utility model content

The purpose of this utility model is to provide a kind of propeller and propulsion plant, to solve present in prior art Isolated blade can not form duct effect, the less technical problem of propulsive force of generation.

The propeller that the utility model is provided, including blade and oar axle；Blade is in strip；The first end of blade and oar axle are straight Connect or be indirectly connected with, circumferential skewing of the blade along oar axle；The line at blade first end and the second end and bend extension side with blade The angle on one side of the oar axle extended to equidirectional is acute angle.

Further, blade includes blade root section, leaf stage casing and blade tip section；Blade is projected as in the axial direction of oar axle Spiral yarn shaped or involute shape；Blade root section, leaf stage casing and blade tip section are sequentially connected；The junction of leaf stage casing and blade root section and Leaf stage casing and the natural transition in junction of blade tip section；Leaf stage casing is gradually reduced to the angle of attack of blade tip section.

Further, leaf stage casing keeps constant to the leaf width of blade tip section or is gradually reduced.

Further, blade is multiple；The first end of multiple blades with oar axle direct or indirect connection, and multiple blades First end be arranged at intervals successively along the circumference of oar axle.

Further, the utility model also provides a kind of propulsion plant, and propulsion plant includes drive mechanism and propeller.Drive Motivation structure includes motor；Oar axle is fixedly connected with the power output shaft of motor so that motor drive blade around Oar axle is rotated.

The propeller that the utility model is provided, in use, blade makees circumferential movement around oar axle, and movement locus exists The projection of axial direction is in the form of annular discs, during rotation, and blade (wherein, spherical can be with around oar axle formation hemispherical cavity For ball or rugby etc.).When the propeller rotates, fluid is flowed into from housing surface, is entered in cavity, and from spiral (area that wherein, aperture area is the projection shape in disk form of axial direction) is sprayed at the opening of oar rotation, that is, flows into area More than outflow area, it (is wherein, lower section, opposite direction along the bearing of trend of oar axle at opening that pressure below, which is more than top pressure, For top), so as to drive equipment moving.From the foregoing, it will be observed that propeller is when rotated, blade makees circumferential movement around oar axle, is formed The cavity of one semi-surrounding, blade is cut and pushed to fluid, fluid is flowed in cavity, and blade rotates to be formed curved Card so that the area that fluid flows into cavity is more than the area flowed out, assembles in cavity, produces certain high pressure, and then will The fluid high-speed of inflow sprays, and blade formation duct effect is isolated, so as to produce larger thrust.

Further, since propeller forms duct effect, in the case of identical thrust requirements, the rotating speed of propeller is relative It is relatively low, design of the blade along oar axle circumferential skewing so that the blade of rotation can effectively protect itself and touch object, and reduction makes With risk, while the slow-speed of revolution can also reduce operation noise, interference to external world is reduced.

Because blade is along oar axle circumferential skewing, its is leaf can reduce propeller rotate the cavity periphery to be formed fluid it is close Degree, the resistance in reduction equipment traveling, while energy-saving and emission-reduction.

Further, propeller can be arranged on the aircraft that can be vertically moved up or down, when aircraft runs out of steam down in the air When falling, propeller shape forms the cavity of a semi-surrounding into spin, and its opening is downward towards gravity direction, it is easier to slows down and falls Speed, is effectively formed the safety of the slow drop of spin, protection equipment and personnel.

Brief description of the drawings

, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art The accompanying drawing used required in embodiment or description of the prior art is briefly described, it should be apparent that, describe below In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.

The structural representation for the propeller that Fig. 1 provides for the utility model embodiment；

The axis projection view for the propeller that Fig. 2 provides for the utility model embodiment；

The structural representation for the propeller that Fig. 3 provides for the another embodiment of the utility model.

Icon：1- blades；2- oar axles；3- first ends；The ends of 4- second；5- trailing edges；11- blade roots section；In 12- leaves Section；13- blade tips section.

Embodiment

The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described Embodiment is a part of embodiment of the utility model, rather than whole embodiments.Based on the embodiment in the utility model, sheet The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality Novel protected scope.

, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular Directly ", the orientation or position relationship of the instruction such as " level ", " interior ", " outer " are, based on orientation shown in the drawings or position relationship, to be only Described for the ease of description the utility model and simplifying, rather than to indicate or imply that signified device or element must have specific Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition, term " the One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that indicating or implying relative importance.

, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition Concrete meaning of the language in the utility model.

The structural representation for the propeller that Fig. 1 provides for the utility model embodiment；Fig. 2 is that the utility model embodiment is carried The axis projection view of the propeller of confession；As depicted in figs. 1 and 2, the propeller that the present embodiment is provided, including blade 1 and oar axle 2；Blade 1 is in strip；The first end 3 of blade 1 and the direct or indirect connection of oar axle 2, circumferential skewing of the blade 1 along oar axle 2；Blade Angle between the axis of the line and oar axle 2 at 1 first end 3 and the second end 4 is acute angle.

Wherein, the type of oar axle 2 can be to be a variety of, such as：Oar axle 2 can be the power output of propeller hub or motor Axle etc..

Circumferential skewing of the blade 1 along oar axle 2, refers in terms of the axial direction of oar axle 2, and blade 1 is shaped form.

It is preferred that the first end 3 of blade 1 and with blade 1 bend the oar axle 2 of bearing of trend equidirectional extension one side it Between angle be not more than 60 °.

Further, it is preferred that blade 1 may be configured as it is spiral yarn shaped.When blade 1 is spiral yarn shaped, blade 1 surrounds oar Axle 2 makees circumferential movement, and the projection of movement locus in the axial direction is in the form of annular discs, during rotation, and blade 1 surrounds the shape of oar axle 2 Into hemispherical cavity (wherein, spherical can be ball or rugby etc.).In the case where disc face diameter is constant, cavity Volume it is bigger, the Fluid Volume of parcel is bigger, and duct effect becomes apparent from.In addition, when running out of steam in the air, it is this to set Put and the slow drop of spin is more readily formed, protection equipment is without damage.

The propeller that the present embodiment is provided, in use, blade 1 makees circumferential movement around oar axle 2, and movement locus exists The projection of the axial direction of propeller is in the form of annular discs, during rotation, and blade 1 is around formation hemispherical cavity (its of oar axle 2 In, spherical can be ball or rugby etc.).When the propeller rotates, fluid is flowed into from housing surface, enters cavity In, and sprayed (area that wherein, aperture area is the projection shape in disk form of axial direction) at the opening that propeller rotates, Flow into area and be more than outflow area, pressure below (wherein, is along the bearing of trend of oar axle 2 at opening more than top pressure Lower section, opposite direction is top), so as to drive equipment moving.From the foregoing, it will be observed that propeller is when rotated, blade 1 is made around oar axle 2 Circumferential movement, forms the cavity of a semi-surrounding, and blade 1 is cut and pushed to fluid, fluid is flowed in cavity, blade The curved card that 1 rotation is formed so that the area of fluid inflow is more than the area of outflow, assembles in cavity, produces necessarily High pressure, and then the fluid high-speed of inflow is sprayed, the formation duct effect of blade 1 is isolated, so as to produce larger thrust.

Further, since propeller forms duct effect, in the case of identical thrust requirements, the rotating speed of propeller is relative Relatively low, design of the blade 1 along the circumferential skewing of oar axle 2 so that the blade 1 of rotation can effectively protect itself and touch object drops Low application risk, while the slow-speed of revolution can also reduce operation noise, reduces interference to external world.

Because blade 1 is along the circumferential skewing of oar axle 2, its is leaf can to reduce the fluid that propeller rotates the cavity periphery to be formed Density, the resistance in reduction equipment traveling, while energy-saving and emission-reduction.

As shown in figure 1, on the basis of above-described embodiment, further, blade 1 include blade root section 11, leaf stage casing 12 with And blade tip section 13；Blade 1 is projected as spiral yarn shaped or involute shape in the axial direction of oar axle 2；Blade root section 11, leaf stage casing 12 And blade tip section 13 is sequentially connected；Leaf stage casing 12 and the junction and leaf stage casing 12 and the junction of blade tip section 13 of blade root section 11 Natural transition；Leaf stage casing 12 is gradually reduced to the angle of attack of blade tip section 13.

Wherein, it is preferred that leaf stage casing 12 is gradually decrease to the negative angle of attack to the angle of attack of blade tip section 13, such setting can make Duct effect is more obvious.

Further, leaf stage casing 12 and junction natural transition, i.e. the leaf stage casing 12 of blade tip section 13 arrive blade tip section 13 to connect Continuous smooth shaped form, as shown in Figure 1.

Further, the company between the connection between leaf stage casing 12 and blade root section 11, and leaf stage casing 12 and blade tip section 13 Connect, can be to be rigidly connected, be flexibly connected, being detachably connected or non-dismountable connection.

In the present embodiment, the junction of the junction and leaf stage casing 12 and blade tip section 13 of leaf stage casing 12 and blade root section 11 is certainly Right transition, makes blade 1 in smooth shaped form.In use, blade root section 11 is positive windward, and the trailing edge 5 of blade root section 11 is cut Cutting fluid makes propeller straight to propulsion；The angle of attack in leaf stage casing 12 is larger, radially pushes and flows by the cutting of trailing edge 5 and the blade face of blade 1 Body formation thrust；The angle of attack of blade tip section 13 is less than the angle of attack in leaf stage casing 12, and blade tip section 13 relies primarily on the radially pushing of the blade face of blade 1 Fluid formation thrust, and the pressure difference produced using the less angle of attack enters inside cavity to suck the fluid on periphery, and be gathered in In cavity, high pressure is formed.In use, leaf stage casing 12 sets the larger angle of attack, to improve the propulsive efficiency of blade 1；Leaf Stage casing 12 is gradually reduced to the angle of attack of blade tip section 13, advantageously forms duct effect, produces bigger thrust.

On the basis of above-described embodiment, further, leaf stage casing 12 to the leaf width of blade tip section 13 keeps constant or gradually Reduce.

Wherein, the direction that the present embodiment is limited refers in leaf as the direction of the section 13 from leaf stage casing 12 to blade tip, the leaf width of blade 1 Section 12 at blade 1 leaf width and blade tip section 13 at blade 1 leaf width.

Further, the cross-sectional shapes of blade 1 may be designed as fusiformis, crescent, airfoil etc..

In the present embodiment, in use, due to leaf central part 12 perpendicular to oar axle 2 air line distance farther out, selection compared with Wide setting and the larger angle of attack, to ensure the propulsive efficiency of blade 1；Blade tip portion 13 selects narrower leaf width to set, so as to drop Low inertia and energy consumption.

The structural representation for the propeller that Fig. 3 provides for the another embodiment of the utility model, as shown in figure 3, in above-mentioned reality Apply on the basis of example, further, blade 1 is multiple；The first end 3 of multiple blades 1 with the direct or indirect connection of oar axle 2, And the first end 3 of multiple blades 1 is arranged at intervals successively along the circumference of oar axle 2.

Further, multiple blades 1 should be evenly distributed and be equal in weight, and shape is identical, to improve propeller when rotated Stationarity.

In the present embodiment, in the design process, requirement and the power output of needs that designer can be according to apparatus of load Etc. factor, increase or the quantity for reducing blade 1.This set can expand the scope of application of propeller, and ensure propeller The held stationary in motion process, to ensure the safety of equipment and personnel.

On the basis of above-described embodiment, further, the utility model embodiment also provides a kind of propulsion plant, and this is pushed away Entering device includes drive mechanism and propeller.Drive mechanism includes motor；The power output shaft of oar axle 2 and motor is consolidated Fixed connection, so that motor drives blade 1 to be rotated around oar axle 2.

Wherein, the species of motor can be to be a variety of, such as：Dc motor, asynchronous motor and synchronization are electronic Machine etc..

In the present embodiment, in use, motor drives power output shaft rotation, and output shaft transmits moment of torsion with band Dynamic oar axle 2 rotates, so as to drive blade 1 to rotate.The projection of the movement locus of blade 1 in the axial direction is in the form of annular discs, rotation During, blade 1 is around the formation hemispherical cavity of oar axle 2 (wherein, spherical can be ball or rugby etc.).Work as spiral When oar rotates, fluid is flowed into from housing surface, is entered in cavity, and (wherein, opening is sprayed at the opening that propeller rotates Area is the area of the projection shape in disk form of axial direction), that is, flow into area and be more than outflow area, pressure below is more than top Pressure (being wherein, lower section along the bearing of trend of oar axle 2 at opening, opposite direction is top), so as to drive equipment moving.By upper Understand, when rotated, blade 1 makees circumferential movement to propeller around oar axle 2, forms the cavity of a semi-surrounding, blade 1 is to fluid Cut and pushed, fluid is flowed in cavity, the curved card that the rotation of blade 1 is formed so that the area that fluid is flowed into is big In the area of outflow, assemble in cavity, produce certain high pressure, and then the fluid high-speed of inflow is sprayed, isolate the shape of blade 1 Into duct effect, so as to produce larger thrust.

Finally it should be noted that：Various embodiments above is only limited to illustrate the technical solution of the utility model, rather than to it System；Although the utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should Understand：It can still modify to the technical scheme described in foregoing embodiments, or to which part or whole Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly The scope of each embodiment technical scheme of type.

Claims

1. a kind of propeller, it is characterised in that including：Blade and oar axle；

The blade is in strip；The first end of the blade and the oar axle direct or indirect connection, the blade is along the oar The circumferential skewing of axle；Angle between the axis of the line and the oar axle at the first end of the blade and the second end is acute angle.

2. propeller according to claim 1, it is characterised in that the blade includes blade root section, leaf stage casing and blade tip Section；

The blade is projected as spiral yarn shaped or involute shape in the axial direction of the oar axle；The blade root section, the leaf Stage casing and blade tip section are sequentially connected；The junction and the leaf stage casing of the leaf stage casing and the blade root section with it is described The natural transition in junction of blade tip section；The leaf stage casing is gradually reduced to the angle of attack of blade tip section.

3. propeller according to claim 2, it is characterised in that the leaf stage casing to the leaf width of blade tip section is kept not Become or be gradually reduced.

4. propeller according to claim 1, it is characterised in that the blade is multiple；

The first end of multiple blades with the oar axle direct or indirect connection, and multiple blades first end along institute The circumference for stating oar axle is arranged at intervals successively.

5. a kind of propulsion plant, it is characterised in that the propeller including drive mechanism and as described in claim any one of 1-4；

The drive mechanism includes motor；The oar axle is fixedly connected with the power output shaft of the motor, so that The motor drives the blade to be rotated around the oar axle.