CN104251225A - Horizontal type double suction pump of novel shaft system supporting structure - Google Patents
Horizontal type double suction pump of novel shaft system supporting structure Download PDFInfo
- Publication number
- CN104251225A CN104251225A CN201310262028.8A CN201310262028A CN104251225A CN 104251225 A CN104251225 A CN 104251225A CN 201310262028 A CN201310262028 A CN 201310262028A CN 104251225 A CN104251225 A CN 104251225A
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- suction pump
- type double
- horizontal type
- double suction
- pump body
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Abstract
The invention discloses a horizontal type double suction pump of a novel shaft system supporting structure. The horizontal type double suction pump comprises a horizontal type double suction pump body, a shaft and an impeller; the horizontal type double suction pump is characterized in that a left copper bearing bush and a right copper bearing bush are arranged on the inner side surface of the horizontal type double suction pump body, the edge sides of two inlets, which are opposite to the positions of the left copper bearing bush and the right copper bearing bush, of the impeller arranged on the shaft are respectively provided with a hard alloy coating layer, one end of the shaft stretches out of the horizontal type double suction pump body and is arranged on a rolling bearing, and the rolling bearing is positioned in a bearing seat which is connected onto the horizontal type double suction pump body. The horizontal type double suction pump disclosed by the invention has the advantages that the structure is simple, the space is reduced, gaps in positions of sealing rings are reduced, and the volume efficiency is increased; the service life of a sliding bearing is originally very long, thus the continuous running time of the horizontal type double suction pump can be increased, and the service life of the horizontal type double suction pump can be prolonged.
Description
Technical field
The present invention relates to the horizontal double sucking pump of a kind of Novel shaft system supporting structure.
Background technique
As Fig. 1, traditional middle open type double suction pump is all bearings at both ends supporting type structure, its impeller is between bearings at both ends, leak for reducing between impeller and pump case, increase the volumetric efficiency of pump, seal ring structure can be adopted, its leakage less of gap between its seal ring and impeller is less, volumetric efficiency can be higher, but in the production process of reality, due to the cumulative error of processing and assembling, usually the gap of this seal ring can be stayed larger, usually 0.5mm is greater than, sometimes large pump also needs larger gap, the leakage so brought is also just larger, volumetric efficiency reduces, even and if increase certain gap, not wearing and tearing between seal ring and impeller can not be ensured, because stage casing is that axle produces the maximum place of amount of deflection when axle is larger by radial force, along with the increase of working time, wearing and tearing can aggravate gradually, arrive to a certain degree after excesssive gap, need to change seal ring to ensure gap, such result changes trouble, the occlusion of material friction must be considered, if frictional ratio is more serious, also can have influence on the working life of pump.
Summary of the invention
The object of the invention is to solve the problem that traditional double suction pump seal rings easily weares and teares, simplifying the structure of horizontal double sucking pump, while the gap reducing seal ring position, rigidity and the stability of rotor operation can also be improved, simplify pump structure, also can ensure that the continuous operating time of pump is more permanent simultaneously, improve the working life of pump.The present invention designs the horizontal double sucking pump of a kind of Novel shaft system supporting structure, comprise horizontal double sucking pump body, axle, impeller, it is characterized in that: two cu bearing liners in left and right are set on horizontal double sucking pump body inner side surface, the impeller be arranged on axle has a cemented carbide coating layer relatively and on the both sides import avris at cu bearing liner place, horizontal double sucking pump body is stretched out in one end of axle, be arranged on rolling bearing, rolling bearing is positioned at the bearing support be connected on horizontal double sucking pump body.Advantage of the present invention is that structure is simple, and space reduces, and gap, seal ring position reduces, and volumetric efficiency improves, and the life-span of sliding bearing is natively very long, so the continuous operating time of pump and life-span can be improved.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art, and in figure, 10 is seal ring, and 11 is rolling bearing.
Fig. 2 is structural representation of the present invention.
Below in conjunction with accompanying drawing and construction embodiment, detailed operation instruction is done to the present invention.
Embodiment
Fig. 2 comprises horizontal double sucking pump body 1, axle 2, impeller 3, it is characterized in that: two cu bearing liners 4 in left and right are set on horizontal double sucking pump body inner side surface, the impeller be arranged on axle has a cemented carbide coating layer 6 relatively and on both sides import 5 avris at cu bearing liner place, horizontal double sucking pump body is stretched out in one end of axle, be arranged on rolling bearing 7, rolling bearing is positioned at the bearing support 8 be connected on horizontal double sucking pump body.
Relative to existing technology, first be the non-driven-end bearing removed in the bearings at both ends of double suction pump, change common seal ring into copper bearing shell, the seal ring portion faces plating cemented carbide of impeller, the structure of a sliding bearing is just changed at seal ring position now, and the axial dimension at seal ring position will increase, with better stressed and prevention leakage, 0.2mm is less than by its gap of requirement of sliding bearing, impeller is directly supported on former seal ring position, form stable bearing shell supporting structure, an axle transmitting torque, no longer bear radial force, drive end keeps a rolling bearing for bearing remaining axial force and stable rotor structure, structural rate original structure so is now simple, space reduces, gap, seal ring position reduces, volumetric efficiency improves, and the life-span of sliding bearing is natively very long, so the continuous operating time of pump and life-span can be improved.The invention solves the problem that traditional double suction pump seal rings easily weares and teares, simplify the structure of horizontal double sucking pump, while the gap reducing seal ring position, rigidity and the stability of rotor operation can also be improved, simplify pump structure, also can ensure that the continuous operating time of pump is more permanent simultaneously, improve the working life of pump.
Claims (1)
1. the horizontal double sucking pump of a Novel shaft system supporting structure, comprise horizontal double sucking pump body, axle, impeller, it is characterized in that: two cu bearing liners in left and right are set on horizontal double sucking pump body inner side surface, the impeller be arranged on axle has a cemented carbide coating layer relatively and on the both sides import avris at cu bearing liner place, horizontal double sucking pump body is stretched out in one end of axle, be arranged on rolling bearing, rolling bearing is positioned at the bearing support be connected on horizontal double sucking pump body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310262028.8A CN104251225A (en) | 2013-06-27 | 2013-06-27 | Horizontal type double suction pump of novel shaft system supporting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310262028.8A CN104251225A (en) | 2013-06-27 | 2013-06-27 | Horizontal type double suction pump of novel shaft system supporting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104251225A true CN104251225A (en) | 2014-12-31 |
Family
ID=52186408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310262028.8A Pending CN104251225A (en) | 2013-06-27 | 2013-06-27 | Horizontal type double suction pump of novel shaft system supporting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104251225A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003184786A (en) * | 2001-12-19 | 2003-07-03 | Hitachi Ltd | Double suction volute pump |
| CN1609455A (en) * | 2003-10-24 | 2005-04-27 | 日立产业有限公司 | Water discharge pump and underwater bearing apparatus |
| CN2731145Y (en) * | 2004-10-26 | 2005-10-05 | 张明玉 | Center opened centrifugal pump for thermal power network |
| JP2011252463A (en) * | 2010-06-03 | 2011-12-15 | Torishima Pump Mfg Co Ltd | Double suction pump |
-
2013
- 2013-06-27 CN CN201310262028.8A patent/CN104251225A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003184786A (en) * | 2001-12-19 | 2003-07-03 | Hitachi Ltd | Double suction volute pump |
| CN1609455A (en) * | 2003-10-24 | 2005-04-27 | 日立产业有限公司 | Water discharge pump and underwater bearing apparatus |
| CN2731145Y (en) * | 2004-10-26 | 2005-10-05 | 张明玉 | Center opened centrifugal pump for thermal power network |
| JP2011252463A (en) * | 2010-06-03 | 2011-12-15 | Torishima Pump Mfg Co Ltd | Double suction pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141231 |