CN203892227U - Structure for protecting and prolonging service life of lower water guide bearing of axial flow pump - Google Patents
Structure for protecting and prolonging service life of lower water guide bearing of axial flow pump Download PDFInfo
- Publication number
- CN203892227U CN203892227U CN201320886147.6U CN201320886147U CN203892227U CN 203892227 U CN203892227 U CN 203892227U CN 201320886147 U CN201320886147 U CN 201320886147U CN 203892227 U CN203892227 U CN 203892227U
- Authority
- CN
- China
- Prior art keywords
- guide bearing
- water guide
- pilot bearing
- water pilot
- pump shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a structure used for protecting and prolonging the service life of a lower water guide bearing of an axial flow pump. The structure comprises a pump shaft, an upper water guide bearing, a lower water guide bearing, an upper casing and a lower casing, wherein the upper water guide bearing and the lower water guide bearing are respectively arranged on the pump shaft in a sleeving manner, the upper casing is used for accommodating the upper water guide bearing, and the lower casing is used for accommodating the lower water guide bearing. The structure provided by the utility model is characterized in by further comprising a sleeve pipe, wherein the sleeve pipe is arranged outside the pump shaft, the inner surface of the sleeve pipe and the outer surface of the pump shaft form a ring-shaped cavity, the casing pipe is provided with a first end and a second end, the first end is hermetically connected with the lower end of the upper casing, and the second end is hermetically connected with the upper end of the lower casing. Therefore, no matter how execrable the water quality condition is, the lower water guide bearing can be lubricated by clean water, the lower water guide bearing can be well protected, the service life of the lower water guide bearing is prolonged, the maintaining cost is lowered, and the water pump is enabled to run for a long time smoothly and reliably.
Description
Technical field
The utility model relates to axial-flow pump, particularly a kind of for the protection of extending water pilot bearing life-span structure under axial-flow pump.
Background technique
In vertical-type axial-flow pump, generally there are upper and lower two water pilot bearings, if upper water pilot bearing field condition allows, generally external clear water lubricates, if do not had, is that the water of being carried by water pump lubricates; Lower water pilot bearing is to soak in water completely, is directly lubricated by the water of carrying; If what carry is clear water, problem is little; If the condition of water quality of carrying is severe (in the time containing sand grain and fiber) relatively in water, upper water pilot bearing can external lubrication with clean water, but the ratio that lower water pilot bearing will damage very fast (the one, the wearing and tearing of particle, the 2nd, may dry grind with axle), once lower water pilot bearing damages, gently make pump develops noise, vibration etc., heavy can to make axle and wheel member swing excessive, thus damage wheel member etc.
Model utility content
The purpose of this utility model is to solve lower water pilot bearing easily to damage, and the one proposing is for the protection of extending water pilot bearing life-span structure under axial-flow pump.
To achieve these goals, the technical solution of the utility model is achieved in that a kind of for the protection of extending water pilot bearing life-span structure under axial-flow pump, comprise, one pump shaft, be sheathed on respectively on one on this pump shaft water pilot bearing and water pilot bearing once, one upper shell and that holds water pilot bearing on this holds the lower shell body of this lower water pilot bearing, it is characterized in that, also comprise a sleeve pipe, this casing pipe sleeve is located at outside this pump shaft and this sleeve pipe inner face and this pump shaft outside formation one toroidal cavity, this sleeve pipe has a first end and one second end, this first end and this upper shell lower end are tightly connected, this second end and this lower shell body upper end are tightly connected.
Compared with prior art, feature of the present utility model is: no matter how severe condition of water quality is, lower water pilot bearing is still used lubrication with clean water; thereby well protect time water pilot bearing; extended its working life, saved maintenance cost, make water pump can be more for a long time, steadily, operation reliably.
Brief description of the drawings
Fig. 1 is the structural representation of prior art.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is the enlarged diagram of upper shell lower end in the utility model.
Fig. 4 is the enlarged diagram of lower shell body upper end in the utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is elaborated.
Refer to Fig. 2, 3 and 4, shown in figure is a kind of for the protection of extending water pilot bearing life-span structure under axial-flow pump, comprise, one pump shaft 3, be sheathed on respectively on one on this pump shaft water pilot bearing 2 and water pilot bearing 5 once, one upper shell 1 and that holds water pilot bearing on this holds the lower shell body 6 of this lower water pilot bearing, it is characterized in that, also comprise a sleeve pipe 4, this casing pipe sleeve is located at outside this pump shaft and this sleeve pipe inner face and this pump shaft outside formation one toroidal cavity, this sleeve pipe has a first end 41 and one second end 42, this first end and this upper shell lower end are tightly connected, this second end and this lower shell body upper end are tightly connected.This first end is tightly connected by a connection piece and this upper shell lower end, and this second end is tightly connected by a flange and this lower shell body upper end.This link 7 is made up of a transverse part 72 and a vertical portion 71, and this transverse part inner face and this first end outside is welded to connect, outside this vertical portion inner face and this upper shell lower end, be welded to connect, and this upper shell lower end surface and leave a gap above this transverse part; This second end end face and this flange 8 are welded to connect above, and this flange has multiple fixed holes 81, and this lower shell body upper-end surface has the matching hole corresponding with those fixed holes 31, with bolt, this flange is fixed on this lower shell body; This lower shell body upper-end surface Inner edge also has a boss, and this boss outside offsets with this flange inner face.From directly lubricated water pilot bearing of the external clear water of upper water pilot bearing (its pressure need be greater than the pressure of water pump); make the water of carrying can not enter the upper and lower water pilot bearing time; so just make no matter how severe its condition of water quality is; lower water pilot bearing is still used lubrication with clean water; thereby well protect time water pilot bearing; extended its working life, saved maintenance cost, make water pump can be more for a long time, steadily, operation reliably.
Below only expressed mode of execution of the present utility model, it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to utility model patent scope.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (3)
1. one kind for the protection of extending water pilot bearing life-span structure under axial-flow pump; comprise; one pump shaft, be sheathed on the lower shell body that water pilot bearing on one on this pump shaft and water pilot bearing, holds water pilot bearing on this upper shell and hold this lower water pilot bearing once respectively; it is characterized in that; also comprise a sleeve pipe; this casing pipe sleeve is located at outside this pump shaft and this sleeve pipe inner face and this pump shaft outside formation one toroidal cavity; this sleeve pipe has a first end and one second end; this first end and this upper shell lower end are tightly connected, and this second end and this lower shell body upper end are tightly connected.
2. one according to claim 1, for the protection of extending water pilot bearing life-span structure under axial-flow pump, is characterized in that, this first end is tightly connected by a connection piece and this upper shell lower end, and this second end is tightly connected by a flange and this lower shell body upper end.
3. one according to claim 2 is for the protection of extending water pilot bearing life-span structure under axial-flow pump, it is characterized in that, this link is made up of a transverse part and a vertical portion, this transverse part inner face and this first end outside are welded to connect, this vertical portion inner face and this upper shell lower end outside is welded to connect, and this upper shell lower end surface and leave a gap above this transverse part; This second end end face and being welded to connect above this flange, this flange has multiple fixed holes, and this lower shell body upper-end surface has the matching hole corresponding with those fixed holes, with bolt, this flange is fixed on this lower shell body; This lower shell body upper-end surface Inner edge also has a boss, and this boss outside offsets with this flange inner face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320886147.6U CN203892227U (en) | 2013-12-31 | 2013-12-31 | Structure for protecting and prolonging service life of lower water guide bearing of axial flow pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320886147.6U CN203892227U (en) | 2013-12-31 | 2013-12-31 | Structure for protecting and prolonging service life of lower water guide bearing of axial flow pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203892227U true CN203892227U (en) | 2014-10-22 |
Family
ID=51718638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320886147.6U Expired - Fee Related CN203892227U (en) | 2013-12-31 | 2013-12-31 | Structure for protecting and prolonging service life of lower water guide bearing of axial flow pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203892227U (en) |
-
2013
- 2013-12-31 CN CN201320886147.6U patent/CN203892227U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 Termination date: 20201231 |