CN2477626Y

CN2477626Y - Horizontal axial type aerator

Info

Publication number: CN2477626Y
Application number: CN00253068U
Authority: CN
Inventors: 薛宝忠; 张士珍
Original assignee: VENTILAING-DUSTING EQUIPMENT FACTORY TIANJIN CITY
Current assignee: VENTILAING-DUSTING EQUIPMENT FACTORY TIANJIN CITY
Priority date: 2000-11-23
Filing date: 2000-11-23
Publication date: 2002-02-20
Anticipated expiration: 2010-11-23

Abstract

The utility model relates to a horizontal shaft type aerator that is used in sewage disposal. Ane electric motor and a speed reducer are integrated and installed vertically. An output shaft of the speed reducer is joggled with the front end of the principal axle that crosses the front shaft block and makes the principal axle positioned in the speed reducer. Tail end of the principal axle crosses into the tail shaft block hole and are sleeved with a centripetal spherical surface bearing and a floating bushing sequentially. The water sculling part of the brush plate is provided with a plurality of air groove. The utility model reduces the area of capacity by 30 to 100 percents. The removing of flexible coupling reduces the axial size by 200 to 300 mm. The floating bushing is installed inside the shaft block, which has the advantages of excellent lubrication and sealability and eliminating problems caused by alternated dimension of the principle shaft brought by distortion due to temperature and operation and increasing the contact area between the brush plate and the air. The utility model has excellent effect of oxygen increasing effect.

Description

Horizontal shaft type aerator

The utility model relates to a kind of sewage disposal with horizontal shaft type aerator.

Sewage disposal is both at home and abroad now all established lower margin and is loaded on ground with the used motor of horizontal shaft type aerator, step-down gear, is provided with flexible connection between main shaft and step-down gear.Step-down gear, motor, flexible connection equipment dynamic source one side that coexists, floor space is big, and installs and have many location, nonconcentricity problem.Except that to being equipped with the high requirement, cause damage of components easily; The in the prior art employing of the problem of expanding with heat and contract with cold of main shaft established axial sheath in the bearing support outside more, and its volume is big, materials cost; Brush sheet surface-area is little also to be the major cause that causes the oxygenation effect difference.

The purpose of this utility model is to provide a kind of horizontal shaft type aerator, and this machine floor space is little, establish the axial float cover in the bearing support can guarantee that the main shaft on period is not increased with the air contact surface by temperature variation restriction, brush sheet and improves oxygenation effect.

Above-mentioned purpose is achieved through the following technical solutions: to be that one is vertical with step-down gear install for a kind of horizontal shaft type aerator, its motor, and the diaxon bearing is established lower margin respectively and placed the oxidation ditch both sides after main shaft connects, and the brush sheet evenly is loaded on the main shaft place on oxidation ditch top; Speed reducer output shaft is joggle and main shaft is placed in the step-down gear with the front-end of spindle that passes the front end bearing support; The main shaft tail end penetrate tail end bearing support seat hole and successively suit to heart spherical roller bearing and floating bushing; Leave axial activity space between floating bushing and the bearing support; Its brush sheet water extraction part is shaped on several gas containing flutes.

Characteristics of the present utility model are: 1, minimizing equipment is installed floor space 30～100%, removes flexible connection and makes axial dimension reduce by 200～300mm, makes user's oxidation ditch floor space that is arranged in parallel little, has excellent economy; 2, cancellation not only reduces equipment cost behind the flexible connection, has also avoided the difficulty brought because of the installations disalignment of main shaft, shaft coupling, step-down gear, and the component that cause thus renewal, repair expense; 3, stiff dough tooth step-down gear wear resistance is good, can make service life of equipment more than 10 years, and running steadily, and noise is lower than 80dB (A).4, floating bushing is loaded on good lubricated, stopping property in the bearing support, protective is good, guarantees that device security effectively moves, and eliminates main shaft and changes the problem that causes because of envrionment temperature and the length dimension that the running distortion is produced; 5, brush sheet design stiffening web effectively improves brush sheet intensity and rigidity, increases brush sheet and air contact area, and the equipment oxygenation effect is good.

Below in conjunction with accompanying drawing in detail embodiment of the present utility model is described in detail:

Accompanying drawing 1, horizontal shaft type aerator structural representation.

Accompanying drawing 2, horizontal shaft type aerator brush sheet synoptic diagram.

As shown in Figure 1, its motor 1 is installed for one is vertical with step-down gear 2, step-down gear 2 is established lower margin 4 by engine body exterior moment arm 3 and is fixed with ground, when working, main shaft 7 is not subjected to torque influence with control step-down gear 2, front and back diaxon bearing 5,6 is established

lower margin

8,9 respectively and is placed the oxidation ditch both sides after main shaft 7 connects, brush sheet 10 evenly is loaded on main shaft 7 places on oxidation ditch top; Step-down gear 2 output shafts are joggle and main shaft 7 front ends are directly inserted in the step-down gear 2 that step-down gear 2 is not established lower margin with main shaft 7 front ends that pass front end bearing support 5, support by main shaft 7 to reduce floor space, reduce the distance between step-down gear and the bearing support simultaneously; Main shaft 7 tail ends penetrate 6 holes of tail end bearing support and successively suit to heart spherical roller bearing 11 and floating bushing 12; And leave axial activity space between floating bushing 12 and the bearing support 6, make main shaft 7 because seasonal temperature changes expanding with heat and contract with cold and can stretching of being produced in axial space; Its brush sheet 10 both sides system stiffening webs 13, the working strength and the work-ing life of having improved brush sheet 10, brush sheet 10 water extraction parts are shaped on several gas containing flutes 14 (as shown in Figure 2) with the contact surface of increase brush sheet 10 with air, have improved the oxygenation effect of brush sheet 10.

Claims

1, to be that one is vertical with step-down gear install for a kind of horizontal shaft type aerator, its motor, and the diaxon bearing is established lower margin respectively and placed the oxidation ditch both sides after main shaft connects, and the brush sheet evenly is loaded on the main shaft place on oxidation ditch top; It is characterized in that speed reducer output shaft and the front-end of spindle that passes the front end bearing support are joggle and main shaft is placed in the step-down gear; The main shaft tail end penetrate tail end bearing support seat hole and successively suit to heart spherical roller bearing and floating bushing; Leave axial activity space between floating bushing and the bearing support; Its brush sheet water extraction part is shaped on several gas containing flutes.