CN203500030U - Double suction middle-opening centrifugal pump with impeller and shaft matched by adopting conical shaft hole - Google Patents
Double suction middle-opening centrifugal pump with impeller and shaft matched by adopting conical shaft hole Download PDFInfo
- Publication number
- CN203500030U CN203500030U CN201320588238.1U CN201320588238U CN203500030U CN 203500030 U CN203500030 U CN 203500030U CN 201320588238 U CN201320588238 U CN 201320588238U CN 203500030 U CN203500030 U CN 203500030U
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- China
- Prior art keywords
- impeller
- axle
- shaft
- pump
- centrifugal pump
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- Expired - Lifetime
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Abstract
The utility model relates to a centrifugal pump, in particular to a double suction middle-opening centrifugal pump with impellers and a shaft matched by adopting a conical shaft hole. The double suction middle-opening centrifugal pump comprises a pump cover (1), an outer bearing component (2), an outer sealing component (3), a shaft sleeve nut (4), impellers (5), a pump body (6), impeller keys (7), an inner sealing component (8), an inner bearing component (9) and a shaft (10), wherein the impellers (5) and the shaft (10) are matched by adopting a conical shaft hole. The double suction middle-opening centrifugal pump can facilitate the assembly and disassembly of the impellers and the shaft, and eliminates the clearance between the impellers and the shaft completely, makes the pump operate more steadily, and decreases the vibration and noise.
Description
Technical field
The utility model relates to a kind of centrifugal pump, relates in particular to the Double absorption midle-opening centrifugal pump that a kind of impeller adopts conical axis hole to coordinate with axle.
Technical background
The Double absorption midle-opening centrifugal pump that existing impeller adopts cylindrical axis hole to coordinate with axle, performance range is wide, and application is extensive, and market maintenance is huge.But there are two main defects: 1, assembling and dismounting difficulty.When impeller and axle employing stainless steel, impeller and axle there will be scuffing, have more aggravated the difficulty of assembling and dismounting especially; 2, between impeller and axle, there is gap, cause emerged in operation vibration and noise.
The Double absorption midle-opening centrifugal pump that the impeller that the utility model is related and axle adopt conical axis hole to coordinate, the assembling of impeller and axle and convenient disassembly, there will not be interlock and the phenomenon that abrades mating face; Between impeller and axle, do not have gap, make the operation of pump more steady, vibration and noise are lower.
Model utility content
The problems referred to above that adopt Double absorption midle-opening centrifugal pump that cylindrical axis hole coordinates to exist in order to solve existing impeller and axle, the Double absorption midle-opening centrifugal pump that provides a kind of impeller and axle to adopt conical axis hole to coordinate is provided the purpose of this utility model.This Double absorption midle-opening centrifugal pump assembling and convenient disassembly, vibration and noise are low.
The purpose of this utility model is achieved through the following technical solutions:
The Double absorption midle-opening centrifugal pump that impeller and axle adopt conical axis hole to coordinate, it comprises pump cover, outer bearing parts, external sealed parts, sleeve nut, impeller, the pump housing, impeller key, interior sealed member, inner bearing parts, axle, the two ends of described axle are provided with rolling bearing, interior sealed member and external sealed parts, described rolling bearing is arranged in inner bearing parts and outer bearing parts, the described pump housing, the space that pump cover forms on impeller both sides forms suction chamber, delivery chamber, it is characterized in that: the middle part of described axle is for conical, described impeller is arranged on the middle part of axle, described impeller is provided with tapered bore, just in time match with the taper shape at axle middle part, between described impeller and axle, impeller key is housed, impeller one end is provided with sleeve nut.
Advantage of the present utility model with good effect is: the utility model employing impeller and coordinating of axle are that the cylindrical axis hole before conical axis hole cooperation replaces coordinates, and the assembling of impeller and axle and convenient disassembly, there will not be interlock and the phenomenon that abrades mating face; Between impeller and axle, do not have gap, the operation of pump is more steady, and vibration and noise are lower.
Be specially: (1) the utility model adopts cylindrical hole and the axle before replacing with the impeller of tapered bore with the axle of the mating part of conical cylindrical, makes the assembling of impeller and axle and dismantles more convenient.
(2) with not having gap between the impeller of tapered bore and the axle with the mating part of conical cylindrical, make the operation of pump more steady, noise and vibration is lower.
Accompanying drawing explanation
Fig. 1 is internal structure schematic diagram of the present utility model.
Fig. 2 is the internal structure schematic diagram that impeller and axle adopt the pump of cylindrical axis hole cooperation.
In accompanying drawing: the 1-pump housing, 2-outer bearing parts, 3-external sealed parts, 4-sleeve nut, 5-impeller, the 6-pump housing, 7-impeller key, sealed member in 8-, 9-inner bearing parts, 10-axle.
Accompanying drawing explanation
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, the utility model comprises pump cover 1, outer bearing parts 2, external sealed parts 3, sleeve nut 4, impeller 5, the pump housing 6, impeller key 7, interior sealed member 8, inner bearing parts 9, axle 10, the two ends of described axle 10 are provided with rolling bearing, described rolling bearing is arranged in inside and outside bearing part 9,2, described impeller is arranged on the middle part of axle 10, described impeller one end is provided with sleeve nut 4, and the space that the described pump housing 6, pump cover 1 form on impeller both sides forms suction chamber, delivery chamber.The middle part of described axle 10 is conical, and described impeller 5 is arranged on the middle part of axle 10, and described impeller 5 is provided with tapered bore, just in time matches with the taper shape at axle 10 middle parts.Between described impeller 5 and axle 10, impeller key 7 is housed, for the transmission of moment of torsion, the transmission of power.Described impeller 5 one end are provided with sleeve nut 4, for fixing impeller 5, prevent that impeller 5 is loosening.Impeller 5 is that conical axis hole coordinates with coordinating of axle 10, and the assembling of impeller and axle and convenient disassembly, there will not be interlock and the phenomenon that abrades mating face; Between impeller 5 and axle 10, do not have gap, the operation of pump is more steady, and vibration and noise are lower.
As shown in Figure 2, the pump that existing impeller 5 and axle 10 adopts cylindrical axis hole to coordinate, when assembling and dismounting impeller and axle, owing to existing frictional force particularly to have Geometrical Error, cause labor intensity greatly, to expend man-hour long; When impeller and axle adopt stainless steel, also there will be scuffing, further aggravate the difficulty of assembling and dismounting, but also very easily occur the situation of scratch fitting surface; Between impeller and axle, there is gap, while causing moving, occur vibration and noise.
In a word, the utility model can be saved assembling and dismantle man-hour, especially when assembling and dismounting stainless steel impeller and axle, more can embody its superiority: between impeller and axle, do not have gap, the centering of impeller and axle is in the optimum state, and pump operation is more steady, and noise and vibration is lower.
Claims (1)
1. the Double absorption midle-opening centrifugal pump that impeller adopts conical axis hole to coordinate with axle, it comprises pump cover (1), outer bearing parts (2), external sealed parts (3), sleeve nut (4), impeller (5), the pump housing (6), impeller key (7), interior sealed member (8), inner bearing parts (9), axle (10), the two ends of described axle (10) are provided with rolling bearing, interior sealed member (8) and external sealed parts (3), described rolling bearing is arranged in inner bearing parts (9) and outer bearing parts (2), the described pump housing (6), the space that pump cover (1) forms on impeller both sides forms suction chamber, delivery chamber, it is characterized in that: the middle part of described axle (10) is for conical, described impeller (5) is arranged on the middle part of axle (10), described impeller (5) is provided with tapered bore, just in time match with the taper shape at axle (10) middle part, between described impeller (5) and axle (10), impeller key (7) is housed, impeller (5) one end is provided with sleeve nut (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320588238.1U CN203500030U (en) | 2013-09-09 | 2013-09-09 | Double suction middle-opening centrifugal pump with impeller and shaft matched by adopting conical shaft hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320588238.1U CN203500030U (en) | 2013-09-09 | 2013-09-09 | Double suction middle-opening centrifugal pump with impeller and shaft matched by adopting conical shaft hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203500030U true CN203500030U (en) | 2014-03-26 |
Family
ID=50331014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320588238.1U Expired - Lifetime CN203500030U (en) | 2013-09-09 | 2013-09-09 | Double suction middle-opening centrifugal pump with impeller and shaft matched by adopting conical shaft hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203500030U (en) |
-
2013
- 2013-09-09 CN CN201320588238.1U patent/CN203500030U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140326 |