CN201296701Y

CN201296701Y - Multifunctional surface aerator

Info

Publication number: CN201296701Y
Application number: CNU2008201463246U
Authority: CN
Inventors: 卓祥和; 陈泽枝; 林春明
Original assignee: FUZHOU GARDEN ENVIRONMENTAL PROTECTION ENGINEERING Co Ltd
Current assignee: FUZHOU GARDEN ENVIRONMENTAL PROTECTION ENGINEERING Co Ltd
Priority date: 2008-11-13
Filing date: 2008-11-13
Publication date: 2009-08-26
Anticipated expiration: 2018-11-13

Abstract

A multifunctional surface aerator comprises a motor, a reduction gearbox and an inverted umbrella-shaped impeller, and further comprises a lifter. A shaft of the lifter is fixedly connected with a shaft of the inverted umbrella-shaped impeller; the submergence depth of the inverted umbrella-shaped impeller is adjusted through the lifter; the lifter can set manual, electric and step adjustment modes; through holes are encircled between partition boards and two adjacent blades as well as an impeller shaft of the inverted umbrella-shaped impeller, so that the functions of water head lifting and violent stirring are served. The utility model has the advantages that by utilizing the basic principle of a water pump, three functions of oxygenation by aeration, flow pushing and violent stirring can be served, so that mechanical energy is input fully; and meanwhile, the surface aerator is a multifunctional energy-saving machine, is used and adjusted conveniently in combination with the novel impeller lifter, and lays the foundation for automation production.

Description

Multi-functional surface aerator

[technical field]

The utility model is about a kind of biological sewage treatment equipment, is meant a kind of surface aeration machine especially.

[background technology]

Surface aeration machine (abbreviation surface aerating machine) is the key equipment of biological sewage treatment oxidation ditch.It rotates by aeration impeller, causes fierce stirring of water surface and air mixed, makes airborne oxygen soluble in water.Aeration impeller requires certain rotating speed by motor drives, intermediate demand deceleration mechanical reduction.Surface aerating machine is made up of motor, speed reduction unit and aeration impeller, and is fixed on the installation site of oxidation ditch by support.The depth of immersion of the impeller of initial vertical surface aeration machine can not be regulated, and occur a kind of hoisting appliance that adopts the impeller of multipole transmissions such as worm gear pair, gear pair and tooth bar afterwards, but its complex structure, huge involves great expense.

As shown in Figure 1,, comprise motor 1, shaft coupling 2, reduction box 3, lifting gantry 4 for the existing a kind of surface aeration machine that can regulate the impeller depth of immersion commonly used, and impeller 5.The output shaft of motor 1 is connected to the input terminus of reduction box 3 by shaft coupling 2, and the output shaft of reduction box 3 is fixedlyed connected with impeller 5, and the impeller base 52 of lifting gantry 4 fixedly connected impellers 5 reaches and regulates impeller 5 depth of immersions by regulating lifting gantry 4.In addition, existing blade wheel structure generally is enclosed construction, as shown in fig. 1, the top of the outer end of each blade in the impeller 5 all is fixed on the entire plate 54, like this, the top of impeller 5 is just covered by this plate 54, and then the spray that evokes of blade can't come out for 5 li from impeller, causes stirring not strong.

As No. 00221550.0 patent of Chinese patent, a kind of impeller surface aeration machine of similar above-mentioned lifting structure is promptly disclosed, have hoisting appliance, its hoisting appliance has adopted lifting gantry, and this lifting gantry mainly comprises lifting board, anchor bolt, nut and anchor plate; The impeller base assembly is installed on the lifting gantry.When using,, can regulate the height of lifting gantry, thereby regulate the impeller base assembly that is fixed together with lifting gantry, reach the adjusting that realizes the impeller submergence by the height location of setting nut on anchor bolt.

Above-mentioned two kinds of regulative modes can only pass through manual regulation, by changing the position of nut on bolt, and need more than one of the nut regulated, and regulating step is loaded down with trivial details.And be to reach the impeller submergence by the lifting of regulating whole board to regulate when regulating, therefore special effort is time-consuming, and the blade in this patent is to be interconnected to down umbrella shape by connection piece, be seamless link between blade, connection piece and the blades axes, cause stirring not strong equally.

[summary of the invention]

The multi-functional surface aerator that technical problem to be solved in the utility model is to provide a kind of impeller depth of immersion simple in structure, conveniently adjusted and has expanded stirring action.

The utility model solves the problems of the technologies described above by the following technical programs: a kind of multi-functional surface aerator, comprise electric motor, reduction box and inverted umbrella shaped impeller, also comprise riser, the axle of described riser is fixedlyed connected with the axle of described inverted umbrella shaped impeller.

This utility model can further be specially:

The axle of described riser is a splined shaft, described riser also comprises a regulating mechanism, one single direction thrust ball bearing, trapezoidal nut, trapezoidal screw, the scale sheath leads up and down, and outer bush, described regulating mechanism is positioned at the top of riser, the downward one-body molded formation cylinder in its top, the internal diameter of this cylinder is the internal diameter of trapezoidal nut, and the internal diameter of outer bush is identical, the bottom of trapezoidal nut and the top of outer bush are slidingly connected, the bottom of this outer bush is fixed on the reduction box, described splined shaft has an one-body molded shaft shoulder, the diameter of this shaft shoulder is greater than the diameter of splined shaft, but internal diameter less than described cylinder, and described trapezoidal screw is set between splined shaft and the trapezoidal nut, the internal thread of described trapezoidal nut and the engagement of the outside screw of described trapezoidal screw, the inwall of trapezoidal screw and the outer wall of splined shaft are slidingly connected, fixedly connected with the outer ring of single direction thrust ball bearing in the top of trapezoidal screw, the top outer wall of splined shaft is fixedlyed connected with the inner ring of thrust ball bearing, and the described scale sheath that leads up and down passes outer bush and inserts trapezoidal screw.The turn trapezoidal nut realizes that trapezoidal screw slides up and down, and splined shaft is held by the shaft shoulder by trapezoidal screw and realized moving up and down.

Described splined shaft lower end section is made spline, and the helical gear endoporus in the described reduction box is made spline housing, and the corresponding feather key with spline housing of described spline connects.

The impeller shaft of described splined shaft and inverted umbrella shaped impeller is one-body molded.

Described regulating mechanism is handwheel or electric motor, perhaps stepper.

Described inverted umbrella shaped impeller comprises impeller shaft, plurality of vanes, and the dividing plate of corresponding and blade quantity, described plurality of vanes is fixed on around the bottom of impeller shaft in the mode perpendicular to horizontal plane, and the spacing between each blade equates, fixedly connected between per two blades with a dividing plate, this dividing plate one end is fixedly connected on the top of a blade, the other end is fixedly connected on the top of another blade, surround a through hole between dividing plate and two adjacent vanes, the impeller shaft, play head and the intensively stirred effect of promoting.

The advantage of the utility model multi-functional surface aerator is: utilize the water pump ultimate principle, can bring into play aeration aerating, promote current and intensively stirred three kinds of effects.The mechanical energy input is fully acted on, and is a kind of multifunction energy-saving machinery, is example with the power efficiency of oxygen supply, suitable with common surface aerating machine, all can reach more than the 2.1kgO2/kw.h.In conjunction with novel impeller riser, make things convenient for the use of surface aerating machine to regulate, and lay the foundation for automatic production.

[description of drawings]

The utility model will be further described in conjunction with the embodiments with reference to the accompanying drawings.

Fig. 1 is the structural representation of existing a kind of surface aeration machine.

Fig. 2 is the structural representation of the utility model multi-functional surface aerator.

Fig. 3 is the annexation cross-sectional schematic of the riser and the miscellaneous part of the utility model multi-functional surface aerator.

The stereographic map that Fig. 4 sees from bottom direction for the inverted umbrella shaped impeller of the multi-functional surface aerating machine of the utility model.

The stereographic map that Fig. 5 sees from top-direction for the inverted umbrella shaped impeller of the multi-functional surface aerating machine of the utility model.

[embodiment]

See also Fig. 2, the utility model multi-functional surface aerator comprises electric motor 10, reduction box 20, riser 30, and inverted umbrella shaped impeller 40.

Wherein connection between electric motor 10, reduction box 20 and the inverted umbrella shaped impeller 40 and start relation is identical with existing surface aeration machine.Improvement of the present utility model is, adopts riser 30 to regulate the depth of immersion of inverted umbrella shaped impeller 40, and the axle of described riser 30 is fixedlyed connected with the shaft flange dish of described inverted umbrella shaped impeller 40.Described riser 30 can be provided with manual, electronic and three kinds of regulative modes of stepping, and in the present embodiment, riser 30 adopts manual regulation.

See also Fig. 3, be the annexation cross-sectional schematic of the riser and the miscellaneous part of the utility model multi-functional surface aerator.This riser 30 comprises a handwheel 302, single direction thrust ball bearing 304, trapezoidal nut 306, trapezoidal screw 308, splined shaft 310, lead scale sheath 312 and outer bush 314 up and down.

The output shaft of electric motor 10 is fixedlyed connected with the input shaft of reduction box 20, the endoporus spline housing of the twisted spur gear 202 in the reduction box 20 realizes that with the splined shaft of inverted umbrella shaped impeller 40 feather key is connected, thereby electric motor 10 can be by driving the motion of reduction box 20, and the axle that drives inverted umbrella shaped impeller 40 rotates.The mode that electric motor 10 drives inverted umbrella shaped impeller 40 rotations is a prior art.

Described handwheel 302 is positioned at the top of riser 30, comprises the top hand wheel handle 3022 and the cylinder 3024 of these top hand wheel handle 3022 downward one-body molded formation certainly.The internal diameter of the internal diameter of this cylinder 3024, trapezoidal nut 306, identical with the internal diameter of outer bush 314.Fixedly connected with the top of trapezoidal nut 306 in the bottom of this cylinder 3024, the top of the bottom of trapezoidal nut 306 and outer bush 314 is slidingly connected.The bottom of this outer bush 314 is fixed on the reduction box 20.Described splined shaft 310 has an one-body molded shaft shoulder 3102, and the diameter of this shaft shoulder 3102 is greater than the diameter of splined shaft 310, and still less than the internal diameter of cylinder 3024, the lower end section of splined shaft 310 is made spline.Described splined shaft 310 is placed in the inner core of trapezoidal nut 306, and between splined shaft 310 and the trapezoidal nut 306 described trapezoidal screw 308 is set.The outside screw engagement of the internal thread of described trapezoidal nut 306 and described trapezoidal screw 308, the outer wall of the inwall of trapezoidal screw 308 and splined shaft 310 is slidingly connected, fixedly connected with the outer ring of single direction thrust ball bearing 304 in the top of trapezoidal screw 308, the top outer wall of splined shaft 310 is fixedlyed connected with the inner ring of thrust ball bearing 304.In addition, this splined shaft 310 realizes going up lower link with the impeller shaft of inverted umbrella shaped impeller 40 by ring flange.The spline of splined shaft 310 lower end sections is connected with the endoporus spline housing feather key of twisted spur gear 202.The described scale sheath 312 that leads up and down passes outer bush 314 rectangular grooves and inserts trapezoidal screw 308.

During normal the use, electric motor 10 starts, then electric motor 10 rotates together by twisted spur gear 202 spline housing of making drive splined shaft 310, because splined shaft 310 is to be slidingly connected with trapezoidal screw 308, rotates so the rotation of splined shaft 310 drives the miscellaneous part of riser 30.

When needs are regulated the depth of immersion of inverted umbrella shaped impeller 40, rotate handwheel 302, the rotation of handwheel 302 drives fixedly connected with it trapezoidal nut 306 and rotates, because trapezoidal nut 306 upper-lower positions maintain static, so drive the trapezoidal screw turn about in the of 308 that is engaged with, the turn up and down of trapezoidal screw 308 drives fixedly connected with it single direction thrust ball bearing 304 again and moves up and down, the fixedly connected splined shaft 310 of the shaft shoulder moves up and down and single direction thrust ball bearing 304 drives with it, thereby reach the depth of immersion of regulating inverted umbrella shaped impeller 40, after regulating, the fixing position of inverted umbrella shaped impeller 40.And this adjusting can be carried out under the situation that does not influence surface aerating machine work.

The regulation range of this riser 30 can change by the height location that screws of regulating trapezoidal nut 306 and trapezoidal screw 308, and regulation range is very big.In addition, when above-mentioned handwheel 302 is replaced to electric motor or stepper, promptly can realize the regulative mode of the electronic or stepping of riser 30.

See also Fig. 4 and Fig. 5, Fig. 4 is the stereographic map of seeing from bottom direction of the inverted umbrella shaped impeller 40 of the multi-functional surface aerating machine of the utility model, Fig. 5 is the stereographic map of seeing from top-direction of inverted umbrella shaped impeller 40, this inverted umbrella shaped impeller 40 comprises impeller shaft 42, plurality of vanes 44, and the dividing plate 46 of corresponding and blade 44 quantity

Described plurality of vanes 44 is fixed on around the bottom of impeller shaft 42 in the mode perpendicular to horizontal plane, and the spacing between each blade 44 equates, fixedly connected between per two blades 44 with a dividing plate 46, these dividing plate 46 1 ends are fixedly connected on the top of a blade 44, the other end is fixedly connected on the top of another blade 44, surrounds a through hole 48 between dividing plate 46 and two adjacent vanes 44, the impeller shaft 42.The design of this inverted umbrella shaped impeller 40 utilizes the water pump principle, and the center stays through hole 48 to promote current with water conservancy diversion upwards, and the height (degree) that has improved impeller directly (diameter) compares.The head of the water pump effect when utilizing wheel rotation in the water promote and the radial turbine promotion current of blade 44 on demand flow velocity along oxidation ditch mobile potential energy.The application of water pump principle, the axial force of having exempted impeller can cause that again the violent stirring of aeration zone causes microbial bacteria micelle reorganization regeneration to improve active.

After having improved the aspect ratio of impeller, the riser 30 that regulation range surpasses width of blade is set again, the depth of immersion of conveniently adjusted impeller, promptly oxygenation capacity reduces the influence to plug-flow and stirring simultaneously.

Claims

1. a multi-functional surface aerator comprises electric motor, reduction box and inverted umbrella shaped impeller, it is characterized in that: also comprise riser, the axle of described riser is fixedlyed connected with the axle of described inverted umbrella shaped impeller.

2. multi-functional surface aerator as claimed in claim 1, it is characterized in that: the axle of described riser is splined shaft, described riser also comprises a regulating mechanism, one single direction thrust ball bearing, trapezoidal nut, trapezoidal screw, the scale sheath leads up and down, and outer bush, described regulating mechanism is positioned at the top of riser, the downward one-body molded formation cylinder in its top, the internal diameter of this cylinder, the internal diameter of trapezoidal nut, and the internal diameter of outer bush is identical, fixedly connected with the top of trapezoidal nut in the bottom of this cylinder, the bottom of trapezoidal nut and the top of outer bush are slidingly connected, the bottom of this outer bush is fixed on the reduction box, described splined shaft has an one-body molded shaft shoulder, the diameter of this shaft shoulder is greater than the diameter of splined shaft, but internal diameter less than described cylinder, described splined shaft is placed in the inner core of trapezoidal nut, and described trapezoidal screw is set between splined shaft and the trapezoidal nut, the internal thread of described trapezoidal nut and the engagement of the outside screw of described trapezoidal screw, the inwall of trapezoidal screw and the outer wall of splined shaft are slidingly connected, fixedly connected with the outer ring of single direction thrust ball bearing in the top of trapezoidal screw, the top outer wall of splined shaft is fixedlyed connected with the inner ring of thrust ball bearing, and the described scale sheath that leads up and down passes outer bush and inserts trapezoidal screw.

3. multi-functional surface aerator as claimed in claim 2 is characterized in that: described splined shaft lower end section is made spline, and the helical gear endoporus in the described reduction box is made spline housing, and the corresponding feather key with spline housing of described spline connects.

4. multi-functional surface aerator as claimed in claim 2 is characterized in that: the impeller shaft of described splined shaft and inverted umbrella shaped impeller is one-body molded.

5. multi-functional surface aerator as claimed in claim 1 or 2 is characterized in that: described regulating mechanism is a handwheel.

6. multi-functional surface aerator as claimed in claim 1 or 2 is characterized in that: described regulating mechanism is an electric motor.

7. multi-functional surface aerator as claimed in claim 1 or 2 is characterized in that: described regulating mechanism is a stepper.

8. multi-functional surface aerator as claimed in claim 1 or 2, it is characterized in that: described inverted umbrella shaped impeller comprises impeller shaft, plurality of vanes, and the dividing plate of corresponding and blade quantity, described plurality of vanes is fixed on around the bottom of impeller shaft in the mode perpendicular to horizontal plane, and the spacing between each blade equates, fixedly connected between per two blades with a dividing plate, this dividing plate one end is fixedly connected on the top of a blade, the other end is fixedly connected on the top of another blade, surrounds a through hole between dividing plate and two adjacent vanes, the impeller shaft.