A drum-shaped self-aligning coupling type inverted umbrella surface exposure machine

Abstract

The invention relates to a drum-shaped self-aligning coupling-type inverted umbrella aerator which comprises a reducing mechanism, a mounting pedestal, a mounting base, a coupling, a drive shaft seat and an impeller, wherein the mounting pedestal and mounting base are connected into an integral body through a bolt; the reducing mechanism is mounted to the mounting pedestal through a bolt; the drum-shaped self-aligning coupling is mounted on the lower end of a reduction drive unit; the coupling comprises a drum-shaped external gear inner core and a cylindrical internal gear outer ring; the drum-shaped external gear inner core is connected to an output shaft of the reducing mechanism; the cylindrical internal gear outer ring is connected to the drive shaft seat through a connecting flange; the upper end of the drive shaft seat is connected to the mounting pedestal, and the lower end of the drive shaft seat is connected with the impeller; the output shaft of the reducing mechanism is connected with the drive shaft seat in a self-aligning moveable mode through the gear pair structure composed of the drum-shaped external gear inner core and cylindrical internal gear outer ring; the reducing mechanism, coupling, drive shaft seat, impeller and mounting pedestal are connected into an integral body; and the bolt for connecting the mounting pedestal and mounting base penetrates through and is locked to the mounting base through an adjusting screw mechanism in a mode of adjusting the height of the mounting pedestal up and down.

Description

technical field [0001] The invention relates to a water conservancy equipment, in particular to a drum-shaped self-aligning coupling type inverted umbrella surface aerator. technical background [0002] The main principle of sewage treatment is that oxygen and organic matter generate carbon dioxide and water under the action of microorganisms. The oxygen here refers to the aeration added to the water through mechanical equipment, so the aeration equipment is the core equipment of the sewage treatment plant. The inverted umbrella table As one of them, the aeration machine has the functions of oxygenation aeration, push-flow mixing, upgrading and updating, etc. It is the preferred surface aeration equipment for the oxidation ditch sewage treatment process. This equipment has high technical content and great influence, and there are few domestic manufacturers. , the import rate is high. Conventional umbrella inverted equipment mainly includes motor reducer, connecting flange, ...

AI Technical Summary

Problems solved by technology

The inverted umbrella table aerator with this structure has the following three defects: First, the impeller is rigidly connected directly to the output shaft of the reducer, which cannot compensate for the angular error, the vertical angle error of the impeller and the impact of sewage on the impeller when the impeller is working The eccentric moment generated by the impact will be transmitted to the reducer. The diameter of the impeller is generally about 3 meters. The eccentric moment and impact load generated are relatively large, causing the reducer to be easily damaged and the failure rate is high. The shaft of the reducer has been broken many times in China. The accident that the impeller fell into the sewage and was difficult to salvage; the second is that the stress state of the inverted umbrella is more complicated. The axial force is downward in the non-working state, and the water body produces an upward axial force on the impeller when it is working. Therefore, the impeller drive shaft needs to be bidirectional. The load-bearing mechanism is used to adapt to the complex stress situation of the impeller, while the conventional inverted umbrella does not have such a structure, the bidirectional axial force on the impeller is transmitted to the reducer, which increases the load of the reducer and shortens the service life of the reducer , more faults; third, the screw is directly embedded on the installation basis, and the screw adjusts the installation height of the reducer through the nut to adjust the working height of the impeller. Because of the wide adjustment range, the exposed part of the screw has a longer orientation. After the adjustment is fixed, the screw grows out The excess part is exposed outside, which affects the appearance very ugly, and the exposed thread is easily damaged by collision

According to the above analysis, the traditional inverted parachute bearing structure is unreasonable, not suitable for working conditions, high failure rate, short service life, rough shape of the adjustment mechanism, not beautiful, etc.

Images