CN202152760U

CN202152760U - Axial flow blade

Info

Publication number: CN202152760U
Application number: CN201120241895XU
Authority: CN
Inventors: 钱建刚
Original assignee: Zhangjiagang Shiyibai Electromechanical Equipment Co Ltd
Current assignee: Zhangjiagang smart Mechanical & Electrical Equipment Co., Ltd.
Priority date: 2011-07-11
Filing date: 2011-07-11
Publication date: 2012-02-29
Anticipated expiration: 2021-07-11

Abstract

The utility model relates to an axial flow blade, which comprises a blade body and a connecting part connected between the blade body and a rotating shaft of a motor. A plurality of small arc-shaped blades concentric with the rotating shaft are disposed on the blade body, and the small blades extend along the rotation direction of the blade and are distributed on the blade body in the mode of arc-shaped protrusions. Due to the fact that the plurality of small blades are disposed on the blade, strength of the blade is improved, unstably swinging of the blade during operation is effectively prevented, and air flows located inside the concave face of the blade and capable of causing rotation are led out. Therefore, efficiency is further improved, leakage at the end of the blade is simultaneously reduced, turbulent flows are reduced and efficiency is improved again, and noises are reduced.

Description

A kind of axial blade

Technical field

the utility model relates to a kind of axial blade.

Background technique

Extend along the direction of the air-flow that produces blade tip of axial blade at present; The width of blade increases progressively from root of blade to blade tip; In high-speed rotation because root of blade is narrower, the blade instability that possibly turn round, the noise that causes blade to produce is big, efficient is low; And because existing blade itself all has certain radian, so blade when rotation, return in the concave surface of its formation and produce the air-flow that circles round, reduced working efficiency equally.

Summary of the invention

the utility model purpose provides a kind of stable and axial blade that efficient is high.

in order to achieve the above object; The technological scheme that the utility model adopted is: a kind of axial blade; It comprises blade body, is connected the joint between blade body and the machine shaft; Described blade body is provided with many arc leaflets with the rotating shaft concentric, and described leaflet extends and its curved overshooting shape is distributed on the blade body along the blade sense of rotation.

for improving the working efficiency of leaflet, described blade body comprises root of blade and blade tip, and described root of blade and joint are fixedly connected, and described blade tip is the outside away from the blade body of joint.

The outsourcing connecting head that described joint comprises the built-in connecting head that is fixedly connected with root of blade, is fixedly connected with rotating shaft; Described built-in connecting head plugs connection mutually with the outsourcing connecting head; So that the angle of inclination of adjusting vane, thereby change working efficiency.

further; Described built-in connecting head comprise upper end and the pilum that is fixedly connected of root of blade, with the coaxial interior chuck that is fixedly connected in described pilum lower end; The chuck border is arranged with first draw-in groove of a plurality of semicircle column types in described; Described outsourcing connecting head is bar shape; And its by first toecap of symmetry and second toecap mutually amalgamation constitute, the amalgamation face of described first toecap and second toecap offers a plurality of positioning holes perpendicular to the axis of outsourcing connecting head on the side of described outsourcing connecting head; The axis of described positioning hole is positioned on the amalgamation face of first toecap and second toecap; Offer second draw-in groove of the number semicircle column type identical with the first draw-in groove number on the hole wall of described positioning hole, described first draw-in groove and the second draw-in groove amalgamation form cylindrical hole, are equipped with locating stud in the described cylindrical hole.

owing to adopt technique scheme, the utlity model has following advantage: the utility model is provided with many leaflets on blade, has not only strengthened the intensity of blade; Unsettled swing when preventing blade movement effectively; And guide away return producing the air-flow that circles round in the forward face, further improved efficient, reduced the leakage of blade tip simultaneously; Reduce turbulent flow and improved efficient once more, reduced noise.

Description of drawings

Accompanying drawing 1 is the blade body of the utility model and the plan view of built-in connecting head;

Accompanying drawing 2 is the blade body of the utility model and the plan view of built-in connecting head;

Accompanying drawing 3 is the blade body of the utility model and the right elevation of built-in connecting head;

Accompanying drawing 4 is the plan view of first toecap of the utility model;

Accompanying drawing 5 is the plan view of first toecap of the utility model;

Accompanying drawing 6 is the three-dimensional view of first toecap of the utility model;

Accompanying drawing 7 is first toecap and the blade body schematic representation in succession of the utility model;

Accompanying drawing 8 is that the connecting head of the utility model is connected schematic representation with rotating shaft;

wherein: 1, blade body; 2, rotating shaft; 3, joint; 11, root of blade; 12, blade tip; 13, leaflet; 31, built-in connecting head; 32, outsourcing connecting head; 33, cylindrical hole; 34, locating stud; 311, pilum; 312, interior chuck; 321; First toecap; 322, second toecap; 323, positioning hole; 3121, first draw-in groove; 3231, second draw-in groove.

Embodiment

describe the preferred specific embodiment of the utility model below in conjunction with accompanying drawing.

are as shown in Figure 1, and described axial blade comprises blade body 1, is connected the joint 3 between blade body 1 and the machine shaft 2.

described blade body 1 comprises root of blade 11 and blade tip 12; Described root of blade 11 is fixedly connected with joint 3; Described blade tip 12 is the outside away from the blade body 1 of joint 3, and described leaflet 13 is equally distributed on the blade tip 12.In the utility model, described blade tip 12 is provided with three arc leaflets 13 with rotating shaft 2 concentrics, and described leaflet 13 extends and its curved overshooting shape is distributed on the blade tip 12 along the blade sense of rotation.Because blade tip 12 has certain radian, it forms a concave surface, understands some air-flow during the blade rotation and in concave surface, forms backflow; Reduced efficient; Therefore leaflet 13 is set on blade tip 12, the air-flow that refluxes is guided away from concave surface, improved the working efficiency of blade; Also improve the intensity of blade and the stability of running simultaneously, further improved the working efficiency of blade.

are like Fig. 1, shown in 7; Described joint 3 comprise the built-in connecting head 31 that is fixedly connected with root of blade 11, with the outsourcing connecting head 32 that rotating shaft 2 is fixedly connected, described built-in connecting head 31 plugs connection mutually with outsourcing connecting head 32.

are as shown in Figure 4; Described built-in connecting head 31 comprises the pilum 311 that upper end and root of blade 11 are fixedly connected; Described pilum 311 lower ends are coaxial be fixedly connected with in chuck 312, described in chuck 312 borders be arranged with first draw-in groove 3121 of a plurality of semicircle column types.

are like Fig. 6, shown in 8; Described outsourcing connecting head 32 is bar shape; And its by first toecap 321 of symmetry and second toecap 322 mutually amalgamation constitute; The amalgamation face of described first toecap 321 and second toecap 322 is perpendicular to the axis of outsourcing connecting head 32; Offer a plurality of positioning holes 323 on the side of described outsourcing connecting head 32, the axis of described positioning hole 323 is positioned on the amalgamation face of first toecap 321 and second toecap 322, offers second draw-in groove 3231 of the number semicircle column type identical with first draw-in groove, 3121 numbers on the hole wall of described positioning hole 323; Described first draw-in groove 3121 and 3231 amalgamations of second draw-in groove form cylindrical hole 33, are equipped with locating stud 34 in the described cylindrical hole 33.When the wind-force that needs adjusting vane to produce big or small; First toecap 321 and second toecap 322 of splicing are taken apart; Extraction is plugged in the locating stud 34 in the positioning hole 323 that first draw-in groove 3121 and second draw-in groove 3231 form; Rotor blade is to regulate its angle of inclination; Make first draw-in groove 3121 relative simultaneously, again locating stud 34 is plugged in positioning hole 323 interior angles with stator blade, at last with first toecap 321 and the fixing adjustment of just accomplishing blade angle of second toecap, 322 amalgamations with second draw-in groove 3231.

the foregoing description is only for explaining the technical conceive and the characteristics of the utility model; Its purpose is to let the personage who is familiar with this technology can understand content of the utility model and enforcement according to this; Can not limit the protection domain of the utility model with this; All equivalences of being done according to the utility model spirit change or modify, and all should be encompassed within the protection domain of the utility model like bar number of changing leaflet or the like.

Claims

1. axial blade; It comprises blade body (1), is connected the joint (3) between blade body (1) and the machine shaft (2); It is characterized in that: described blade body (1) is provided with many arc leaflets (13) with rotating shaft (2) concentric, and described leaflet (13) extends and its curved overshooting shape is distributed on the blade body (1) along the blade sense of rotation.

2. axial blade according to claim 1; It is characterized in that: described blade body (1) comprises root of blade (11) and blade tip (12); Described root of blade (11) is fixedly connected with joint (3), and described blade tip (12) is the outside away from the blade body (1) of joint (3).

3. axial blade according to claim 2; It is characterized in that: described joint (3) comprise the built-in connecting head (31) that is fixedly connected with root of blade (11), with the outsourcing connecting head (32) that rotating shaft (2) is fixedly connected, described built-in connecting head (31) plugs connection mutually with outsourcing connecting head (32).

4. axial blade according to claim 3; It is characterized in that: described built-in connecting head (31) comprise upper end and the pilum (311) that is fixedly connected of root of blade (11), with the coaxial interior chuck (312) that is fixedly connected in described pilum (311) lower end; Chuck (312) border is arranged with first draw-in groove (3121) of a plurality of semicircle column types in described; Described outsourcing connecting head (32) is bar shape; And its by first toecap (321) of symmetry and second toecap (322) mutually amalgamation constitute; The amalgamation face of described first toecap (321) and second toecap (322) is perpendicular to the axis of outsourcing connecting head (32); Offer a plurality of positioning holes (323) on the side of described outsourcing connecting head (32); The axis of described positioning hole (323) is positioned on the amalgamation face of first toecap (321) and second toecap (322); Offer second draw-in groove (3231) of the number semicircle column type identical with first draw-in groove (3121) number on the hole wall of described positioning hole (323), described first draw-in groove (3121) forms cylindrical hole (33) with second draw-in groove (3231) amalgamation, is equipped with locating stud (34) in the described cylindrical hole (33).