CN211574062U

CN211574062U - Rotating shaft mechanism

Info

Publication number: CN211574062U
Application number: CN201921392150.6U
Authority: CN
Inventors: 冯伟
Original assignee: Yueyang Clpec Electromechanical Engineering & Technology Co ltd
Current assignee: Yueyang Clpec Electromechanical Engineering & Technology Co ltd
Priority date: 2019-08-26
Filing date: 2019-08-26
Publication date: 2020-09-25
Anticipated expiration: 2029-08-26

Abstract

The utility model discloses a pivot mechanism, including first bearing box, second bearing box, its characterized in that, first bearing box sets up in first pivot, the second bearing box sets up in the second pivot, first pivot with the second pivot can be dismantled with middle pivot respectively and be connected, first pivot is connected with the reducing gear box, the reducing gear box is connected with the motor. The utility model provides high maintenance efficiency has reduced commentaries on classics dish operation fault rate, maintenance cost, high-risk operation frequency and safe risk.

Description

Rotating shaft mechanism

Technical Field

The utility model relates to a petrochemical industry sewage treatment technical field particularly, relates to a pivot mechanism.

Background

The biochemical treatment of sewage treatment field in disperse petrochemical industry usually adopts oxidation ditch process, and the process adopts a rotary disk aerator to oxygenate and push flow the sludge in the oxidation ditch. The oxidation ditch process needs high water level, bearing seats at two ends of a rotating shaft are soaked in water for a long time, and due to the defect of sealing design, water is easy to enter a bearing, lubricating grease is polluted, so that the corrosion and abrasion of a bearing of equipment are serious, the bearing is frequently damaged by the equipment to be rush-repaired, a 50-75-ton truck crane is needed to be used, expensive parts such as the rotating shaft and the like are needed to be frequently replaced, the overhaul cost is high, the overhaul time is long, the maintenance labor intensity is high, and the high labor cost is increased for an overhaul unit while the great threat is brought to the production of the.

SUMMERY OF THE UTILITY MODEL

To the problem among the correlation technique, the utility model provides a pivot mechanism solves the problem that expensive accessories such as current pivot change frequently, the maintenance cost is high.

In order to achieve the technical purpose, the technical scheme of the utility model is as follows:

the utility model provides a rotating shaft mechanism, includes first bearing box, second bearing box, first bearing box sets up in first pivot, second bearing box sets up in the second pivot, first pivot with the second pivot can be dismantled with middle pivot respectively and be connected, first pivot is connected with the reducing gear box, the reducing gear box is connected with the motor.

Furthermore, the middle rotating shaft is respectively connected with the first rotating shaft and the second rotating shaft through flanges.

Further, the flange is fastened using a first bolt assembly.

Further, a spring washer is arranged between the first bolt assembly and the flange.

Furthermore, the first bearing box is provided with a rubber O-shaped ring at the side of the framework seal close to the bearing.

Furthermore, a rotating shaft disc is arranged on the middle rotating shaft.

The utility model has the advantages that: when the bearing is maintained and replaced, the rotating shaft does not need to be completely lifted out, the bearing can be replaced only by disassembling the corresponding rotating shaft and the bearing seat, the operating and maintaining cost of the rotating shaft is reduced, and the frequency and the safety risk of high-risk operation are greatly reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a structural view of a spindle mechanism according to an embodiment of the present invention;

fig. 2 is a diagram of practical application of a rotating shaft mechanism according to an embodiment of the present invention;

in the figure: 1. a motor; 2. a reduction gearbox; 3. an elastic cylindrical pin coupling; 4. a first bearing housing; 5. a double-row self-aligning bearing; 6. a first rotating shaft; 7. a first bolt assembly; 8. a flange; 9. an O-shaped ring; 10. sealing the double-lip framework; 11. an intermediate rotating shaft; 12. a rotating shaft disc; 13; an oxidation ditch; 14. a cement base; 15. a second rotating shaft; 16. a second bearing housing; 17. a second bolt assembly.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.

As shown in fig. 1-2, a rotating shaft mechanism comprises a first bearing box 4 and a second bearing box 16, wherein the first bearing box 4 is arranged on a first rotating shaft 6, the second bearing box 16 is arranged on a second rotating shaft 15, the first rotating shaft 6 and the second rotating shaft 15 are detachably connected with a middle rotating shaft 11 respectively, the first rotating shaft 6 is connected with a reduction gearbox 2, and the reduction gearbox 2 is connected with a motor 1.

In the present embodiment, the intermediate rotating shaft 11 is connected to the first rotating shaft 6 and the second rotating shaft 15 through flanges 8.

In this embodiment, the flange 8 is fastened using the first bolt assembly 7.

In this embodiment, a spring washer is disposed between the first bolt assembly 7 and the flange 8.

In the present embodiment, the first bearing housing 4 is provided with a rubber O-ring 9 on the side of the skeleton seal closer to the bearing.

In this embodiment, the intermediate shaft 11 is provided with a shaft disc 12.

In this embodiment, the bearing seat in the first bearing box 4 is made of nodular cast iron, the double-row self-aligning bearing 5 is a rolling bearing, and an oil groove is formed in the middle of the outer ring of the bearing.

In this embodiment, the intermediate rotating shaft 11 spans the oxidation ditch 13, and both ends are supported by bearing seats.

In this embodiment, the spindle disk 12 is half immersed in the water in the oxidation ditch 13.

In this embodiment, the motor 1 drives one or more rotating shafts to rotate, and the rotating speed of the rotating shafts is adjusted by using a frequency conversion technology and a speed reducer.

To facilitate further understanding of the above technical solution, a specific working process thereof will now be described:

as shown in fig. 1-2, after the rotating shaft mechanism is applied to an oxidation ditch process, a bearing box is installed on a cement base 14 through foundation bolts; when the rotating shaft needs to be overhauled and the bearing needs to be replaced, the whole rotating shaft does not need to be hoisted by using a large-tonnage truck crane facility, if the bearing on the first rotating shaft is damaged, the first bolt assembly 7 only needs to be loosened, the first rotating shaft 6 and the middle rotating shaft 11 are separated, and the first rotating shaft 6 and the first bearing box 4 are detached to replace the bearing; if the bearing on the second rotating shaft is damaged, the bearing can be replaced only by loosening the first bolt assembly 17, separating the second rotating shaft 15 from the middle rotating shaft 11 and detaching the second rotating shaft 15 from the second bearing box 16; during routine maintenance, because the O-shaped ring 9 and the double-lip skeleton seal 10 parts are adopted in the bearing box, sewage enters the bearing box after the water level of the oxidation ditch 13 rises, lubricating grease is prevented from overflowing, the sealing effect is improved, and meanwhile, grease holes are formed in the outer ring of the double-row self-aligning bearing 5, so that grease can be added from the upper part of the bearing box without detaching the end cover of the bearing box.

By adopting the rotating shaft mechanism, the operating failure rate and the maintenance cost of the rotary disc can be greatly reduced, the maintenance cost can be reduced by times, and the hoisting high-risk operation frequency and the safety risk can be reduced.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a rotating shaft mechanism, includes first bearing box (4), second bearing box (16), its characterized in that, first bearing box (4) set up on first pivot (6), second bearing box (16) set up on second pivot (15), first pivot (6) with second pivot (15) can be dismantled with middle pivot (11) respectively and be connected, first pivot (6) are connected with reducing gear box (2), reducing gear box (2) are connected with motor (1).

2. A spindle arrangement according to claim 1, characterized in that the intermediate spindle (11) is connected to the first spindle (6) and the second spindle (15), respectively, by means of a flange (8).

3. A spindle arrangement according to claim 2, characterized in that the flange (8) is fastened using a first bolt assembly (7).

4. A spindle mechanism according to claim 3, characterized in that a spring washer is arranged between the first bolt assembly (7) and the flange (8).

5. A spindle arrangement according to claim 1, characterized in that the first bearing housing (4) is provided with a rubber O-ring (9) on the side of the skeleton seal against the bearing.

6. A spindle arrangement according to claim 1, characterized in that the intermediate spindle (11) is provided with spindle disks (12).