CN201694900U

CN201694900U - Impeller of inverted umbrella-type surface aeration machine

Info

Publication number: CN201694900U
Application number: CN2010202125780U
Authority: CN
Inventors: 李凯华; 汪洋; 韩蔚
Original assignee: ANHUI ZHONGLIAN WATER ENGINEERING AND TECHNOLOGIES Co Ltd; ANHUI NANFENG ENVIRONMENTAL ENGINEERING Co Ltd
Current assignee: ANHUI ZHONGLIAN WATER ENGINEERING AND TECHNOLOGIES Co Ltd; ANHUI NANFENG ENVIRONMENTAL ENGINEERING Co Ltd
Priority date: 2010-05-27
Filing date: 2010-05-27
Publication date: 2011-01-05
Anticipated expiration: 2020-05-27

Abstract

The utility model relates to an impeller of an inverted umbrella-type surface aeration machine which comprises a rotating shaft and at least two working blades. The rotating shaft is coaxially connected with a power output shaft in a rotating manner, a shaft body of the rotating shaft is extended outwards to form the at least two working blades, the plate surfaces of the blades are flat and parallel to the shaft core line of the rotating shaft, a reinforcing plate is fixedly connected between adjacent blades, the plate surface of the reinforcing plate is vertical to the plate surfaces of the blades, and a second reinforcing plate arranged between the adjacent blades is fixedly connected with the adjacent blades and the reinforcing plate between the adjacent blades. The two reinforcing plates can enhance the structure strength of the blades from different directions. Therefore, the impeller further enhances the strength of the blades, thereby further reducing the breaking risks of the blades when in rotation; the service life of the entire impeller is correspondingly prolonged; in addition, as the size of the impeller can be larger, the working performance of the impeller for sewage oxygenation can be correspondingly improved.

Description

Inversed umbrella type surface aeration machine impeller

Technical field

The utility model relates to a kind of surface aeration machine impeller, specifically the impeller that uses on the inversed umbrella type surface aeration machine exactly.

Background technology

The inversed umbrella type surface aeration machine is an equipment commonly used in the sewage purification, comprises impeller, step-down gear, lifting device and motor etc.Wherein, the blade of impeller extending radially outwardly along the rotating shaft in mid-way.During work, the actuating unit impeller is around the rotation of axle core, and under the powerful prograding of impeller, water is the water curtain shape and throws away from the impeller edge, form hydraulic jump, wrap up in into a large amount of air,, bring in constant renewal in liquid level because sewage circulates up and down, the sewage big area is contacted with air, airborne oxygen is dissolved in rapidly in the sewage, finish the oxygenation to sewage, the while impeller also promotes drainage flow and thorough mixing sewage prevents sludge settling.

Blade on the impeller of prior art is extending radially outwardly along rotating shaft usually, it is axial that the plate face of blade is parallel to rotating shaft, structural strength for reinforced blade, fractureed when preventing blades turning, it is roughly vertical with the vane plate face and be approximately perpendicular to the axial stiffening plate of rotating shaft to be provided with the plate face between the blade, stiffening plate can support blade, to improve its structural strength.But such structure still is not enough to ensure the sound construction of impeller, when especially using on powerful aerator, because impeller size is big, rotating speed is high, so blade is still often fractureed.That is to say that existing impeller is short work-ing life.

Summary of the invention

The purpose of this utility model just provide a kind of excellent working performance and work-ing life more persistent inversed umbrella type surface aeration machine impeller.

The scheme that adopts is exactly: a kind of inversed umbrella type surface aeration machine impeller, comprise and constitute rotating shaft that coaxial rotation is connected with power output shaft and by outward extending at least two working-blades of the axle body of rotating shaft, the plate face of blade is straight and be parallel to the shaft core line of rotating shaft, be connected with the stiffening plate of plate face between the adjacent blades perpendicular to the vane plate face, also be provided with second stiffening plate between the adjacent blades, second stiffening plate and adjacent vanes and between stiffening plate affixed.

As shown from the above technical solution: the stiffening plate that not only between blade, is provided with connection and support blade on the impeller of the present utility model, but also being provided with second stiffening plate, second stiffening plate can be from the structural strength of the direction reinforced blade different with stiffening plate so.Such impeller has further strengthened the intensity of blade, and reduced blades turning time distortion even the risk that fractureed; The work-ing life of whole impeller is also with regard to corresponding raising; And such impeller size can do bigger so that improve the ability that impeller is given the sewage oxygenation, improve the serviceability of impeller; And this impeller can just change also and can reverse, and need not to change the shape of impeller, the also corresponding raising of its versatility.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the vertical view of Fig. 1.

Embodiment

A kind of inversed umbrella type surface aeration machine impeller as shown in Figure 1 and Figure 2 comprises rotating shaft 1 and is connected blade 2 on the axle body of rotating shaft 1 that rotating shaft 1 be a tubular shaft, can reduce its quality like this under the prerequisite of the mechanical property that does not reduce rotating shaft 1, the saving material.The upper end of rotating shaft 1 is connected with flange 5, can be connected with the output shaft of actuating unit easily by these flange 5 impellers of the present utility model, and perhaps rotating shaft 1 adopts other technique known to be connected with power output shaft.When power output shaft was rotated, output shaft drove rotating shaft 1 and coaxially rotates.The plate face of blade 2 of the present utility model is roughly parallel with the length direction of rotating shaft 1, that is to say that the plate face of blade 2 is parallel with the shaft core line of rotating shaft 1, and blade 2 has two at least, and preferably 8, serviceability is the most reliable like this; The plate face of blade 2 is straight and the radial parallel of bearing of trend and rotating shaft 1, and the size of adjacent blades 2 and between corner dimension identical, also can be described as blade 2 and be axle core centrosymmetry along rotating shaft 1, be beneficial to stability of rotation, as shown in Figure 2.For the structural strength of reinforced blade 2 is fractureed when avoiding blade 2 to rotate, be connected with the stiffening plate 3 and second stiffening plate 4 between the adjacent blades 2, and the plate face of the plate face of second stiffening plate 4 and stiffening plate 3 all the plate face with blade 2 is vertical.

The 26S Proteasome Structure and Function of stiffening plate 3 and the similar structures of prior art do not have substantial improvements, and it mainly is to support adjacent blades 2 from direction, help the resistance of blade 2 opposings from sewage during wheel rotation, avoid blade 2 because of being subjected to resistance and being out of shape or being fractureed; Second stiffening plate 4 can be from other direction while support blade 2, make the structural strength of blade 2 better, for outstanding this action effect, the plate face of second stiffening plate 4 preferably with the plate face approximate vertical of stiffening plate 3, the ability of reinforced blade 2 structures is better from different directions for both.So impeller of the present utility model because of blade 2 intensity are good can increased in size, not only serviceability improves, and work-ing life, also more existing impeller significantly improved, such impeller is particluarly suitable for using on the powerful aerator.

Better, the plate face of described stiffening plate 3 is an isosceles trapezoid, its plate face by rotating shaft 1 outside oblique top and large-sized base outwardly, trapezoid two hypotenuses are fixed in the plate face middle part of adjacent vanes 2 respectively, preferably the length direction of blade 2 also is to have roughly the same angle of inclination with stiffening plate 3 and oblique top, and both connecting portions are in the length direction of blade 2 plate faces and the middle part of width; So not only the anchorage force of 3 pairs of blades 2 of stiffening plate is uniformly dispersed, action effect is good, and blade obliquely 2 can further increase the length of blade 2 under the situation that does not increase the impeller integral diameter, increase the contact area of blade 2 and sewage, strengthen the ability that impeller is given the sewage oxygenation and carried sewage; And 3 of stiffening plates to be arranged on blade 2 middle parts be because stiffening plate 3 itself has little significance to conveying, the stirring actions of impeller, so that its length need not is too big,, save manufacturing cost to reduce materials, also alleviate the impeller deadweight simultaneously to cut down the consumption of energy.Second stiffening plate 4 preferably with 1 co-axial watt of shape of rotating shaft, i.e. the axle core almost parallel of the plate face of second stiffening plate 4 and rotating shaft 1 also has around the radian of rotating shaft 1; The small size place of each trapezoid stiffening plate 3 and the upper end of second stiffening plate 4 are affixed, be actually like this with the size of second stiffening plate 4 be provided with less, to save material.Preferably the lower end of rotating shaft 1 is tapered, second stiffening plate, 4 lower end positions are a little more than rotating shaft 1 lower end, and then between the lower end of the lower end of second stiffening plate 4 and rotating shaft 1, be connected the housing 41 of taper, the tapering of the tapering of housing 41 and rotating shaft 1 lower end coincide, described housing 41 and rotating shaft 1 coaxial arrangement also are that the tapered lower end integral body with rotating shaft 1 processes.And the stiffening plate 3 and second stiffening plate 4 are with respect to the axle core centrosymmetry of rotating shaft 1, just as shown in Figure 1: rotating shaft 1 and integral body such as blade 2, stiffening plate 3, second stiffening plate 4, housing 41 be the top down taper or claim umbrella shape, power output shaft is from top joint flange 5 and rotating shaft 1.The housing 41 of taper has not only been eliminated second stiffening plate 4 pairs of sewage resistance when blade 2 is outwards dished out, and owing to avoided rotating shaft 1 and blade 2 connection sections to form the dead angle that sewage stops, the beveled structure that falls of its smoothness also helps water conservancy diversion sewage, plays the effect of further reduction wheel rotation resistance.

Further, the outer end of stiffening plate 3 connects the gusset 31 of outwards postponing, blade 2 extends along the plate face of gusset 31, a lateral margin of the middle part of blade 2 and gusset 31 is affixed, in other words be exactly that adjacent edge 311,312 on the gusset 31 is affixed with stiffening plate 3 and blade 2 respectively, just 31 of gussets are positioned at the plate face medium position of blade 2 one sides, have so both played the purpose of strong blade 2 structures, also reduce simultaneously material usage, reduce manufacturing cost.Such 31 pairs of sewage of gusset have guide functions simultaneously, can reduce the resistance of wheel rotation better.

Upper and lower relation described in the literary composition is with the situation shown in Fig. 1, simultaneously also is that the situation of impeller working order is that example illustrates, is not the qualification to blade wheel structure itself.

Claims

1. inversed umbrella type surface aeration machine impeller, comprise and constitute rotating shaft (1) that coaxial rotation is connected with power output shaft and by outward extending at least two working-blades of the axle body of rotating shaft (1) (2), the plate face of blade (2) is straight and be parallel to the shaft core line of rotating shaft (1), be connected with the stiffening plate (3) of plate face between the adjacent blades (2) perpendicular to blade (2) plate face, it is characterized in that: also be provided with second stiffening plate (4) between the described adjacent blades (2), second stiffening plate (4) and adjacent vanes (2) and between stiffening plate (3) affixed.

2. inversed umbrella type surface aeration machine impeller according to claim 1 is characterized in that: described blade (2) is symmetrical arranged 8 along the periphery of rotating shaft (1), the axle core almost parallel of the plate face of described second stiffening plate (4) and rotating shaft (1).

3. inversed umbrella type surface aeration machine impeller according to claim 2, it is characterized in that: the plate face of described stiffening plate (3) is an isosceles trapezoid, its plate face by the outside oblique top of rotating shaft (1) and large-sized base outwardly, trapezoid two hypotenuses are fixed in the plate face middle part of adjacent vanes (2) respectively, and the upper end of trapezoid small size place and second stiffening plate (4) is affixed; Described stiffening plate (3) and the axle core symmetry of second stiffening plate (4) with respect to rotating shaft (1).

4. inversed umbrella type surface aeration machine impeller according to claim 3, it is characterized in that: be connected conical housing (41), the affixed flange (5) that is used to connect power output shaft in the upper end of rotating shaft (1) between the lower end of described second stiffening plate (4) and the lower end of rotating shaft (1).

5. inversed umbrella type surface aeration machine impeller according to claim 4 is characterized in that: described stiffening plate (3) outer end is connected with gusset (31), and the plate face of gusset (31) and stiffening plate (3) are postponed in the same way and be fixed on the side plate face of blade (2).