CN203009311U - Novel double-suction volute centrifugal pump with small shaft stretch cantilever ratio - Google Patents
Novel double-suction volute centrifugal pump with small shaft stretch cantilever ratio Download PDFInfo
- Publication number
- CN203009311U CN203009311U CN 201220735210 CN201220735210U CN203009311U CN 203009311 U CN203009311 U CN 203009311U CN 201220735210 CN201220735210 CN 201220735210 CN 201220735210 U CN201220735210 U CN 201220735210U CN 203009311 U CN203009311 U CN 203009311U
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- China
- Prior art keywords
- pump
- shaft
- impeller
- suction volute
- coupling
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- Expired - Fee Related
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Abstract
The utility model relates to a novel double-suction volute centrifugal pump with a small shaft stretch cantilever ratio. A traditional centrifugal pump matched with an ordinary shell has the defects of being limited in bearing ability, insufficient in cooling in the practical application and the like, and in addition, the phenomenon that a pump shaft is seized by partials also exists on the traditional centrifugal pump and a series of problems exposed in the using process of the traditional centrifugal pump that the stiffness of the pump shaft is bad, and the shaft is twisted off and abraded and the like are not effectively avoided all the time. The novel double-suction volute centrifugal pump with the small shaft stretch cantilever ratio comprises a pump body, a pump cover, the pump shaft, a blade and a drive motor. The pump body comprises a shell. The shell is volute-shaped; a liquid pipeline is placed on the shell; the cross-sectional area of the liquid pipeline is gradually expanded outwards from a connecting end of the shell to the outside; the blade comprises branch blades; an ipsilateral double-suction blade structure mode is adopted by the blade; the drive motor is provided with a coupler; and the pump shaft is placed on the coupler. The novel double-suction volute centrifugal pump with the small shaft stretch cantilever ratio is widely applied to fields of tap water plants, pump stations, power stations, water of cycling for air-conditioners, hot water cycling for warming, fire extinguishing systems, ships, petroleum refining industries and the like.
Description
Technical field
The utility model relates to a kind of novel little shaft extension cantilever than double suction volute pump.
Background technique
Centrifugal pump is a kind of machinery commonly used, is widely used in the industries such as tall building plumbing, fire-fighting, sprinkling irrigation, water treatment, food.Conventional centrifugal pump coordinates common housing to have in actual applications that bearing capacity is limited, the cooling deficiency such as insufficient, also exists in addition particle to kill the phenomenon of pump shaft; Pump shaft is as the transferring power part of centrifugal pump, and an end is connected with motor reel by coupling, and the other end is supporting impeller and rotating, and the component such as bearing, mechanical seal are housed on axle, and its rigidity directly affects the life-span of whole pump group to a certain extent.The series of problems such as the axle that exposes in using process twists off, wearing and tearing are not effectively contained all the time.
The model utility content
The technical problems to be solved in the utility model is the defects that how to overcome prior art, provides a kind of novel little shaft extension cantilever than double suction volute pump.
For solving the problems of the technologies described above, this novel little shaft extension cantilever is than double suction volute pump, comprise the pump housing, pump cover, pump shaft, impeller and drive motor, the described pump housing comprises shell, this shell is scroll casing shape, which is provided with fluid pipeline, this fluid pipeline section area outwards increases gradually from the housing connecting end; Described impeller comprises a minute impeller, and this impeller adopts homonymy double-entry impeller structural type; Described drive motor is provided with coupling, and described pump shaft is arranged on this coupling.
As optimization, described pump housing two ends are provided with rolling bearing, and the pump seal mode is packing seal or mechanical seal; The described pump housing is provided with at least one cleaning hose, and the one end is connected to the pump housing outside, and the other end extends to drive motor arbor and impeller joint.
As optimization, be provided with bindiny mechanism between the described pump housing and drive motor, this bindiny mechanism is provided with four screws, and is furnished with four bolts.
As optimization, described impeller is arranged on the little pump shaft of the pump housing and suspension joint 150mm or large pump shaft.
As optimization, the distance of described impeller centre distance coupling end is equal in length with coupling, and the coupling diameter of axle is greater than the pump shaft diameter of axle.
As optimization, the distance of described impeller centre distance coupling end is 530mm with the length of coupling, and the described coupling diameter of axle is 48mm, and the described pump shaft diameter of axle is 60mm.
This novel little shaft extension cantilever than advantage and the good effect of double suction volute pump is:
1, machine Feng Tiyu pump housing pump cover is with bolts, and bearing support is compact to be connected with machine envelope body bolt, reduces distance between bearings, improves the life-span of bearing and mechanical seal, saves on-the-spot floor space.
2, pump shaft structure improves and cancels the mechanical seal orientation problem.
3, bearing body structure is compact, and mounting or dismounting are convenient.
4, improve shaft rigidity, made axle less in the amount of deflection of impeller and mechanical seal place, guaranteed amount of deflection in mechanical seal place in less scope, thus the working life of prolonged mechanical sealing, the working life of more having improved the easily damaged partss such as bearing and choma.The rear opening structure allows in the situation that do not dismantle import and export pipeline installation and maintenance rotor portion.
This novel little shaft extension cantilever is than double suction volute pump, and is simple in structure, easy to use, is widely used in the fields such as waterworks, pumping plant, power station, Air-conditioning Cycle water, heating hot water circuit, fire-fighting system, boats and ships, petroleum refining industry.
Description of drawings
Below in conjunction with accompanying drawing, the little shaft extension cantilever of the utility model is described further than double suction volute pump:
Fig. 1 is that this novel little shaft extension cantilever is than the part section structural representation of double suction volute pump;
In figure: 1 pump housing, 2 pump covers, 3 pump shafts, 4 impellers, 5 minutes impellers, 6 coupling, 7 cleaning hoses, 8 bolts.
Embodiment
Mode of execution one: as shown in Figure 1, this novel little shaft extension cantilever comprises the pump housing 1, pump cover 2, pump shaft 3, impeller 4 and drive motor than double suction volute pump, the described pump housing 1 comprises shell, this shell is scroll casing shape, which is provided with fluid pipeline, this fluid pipeline section area outwards increases gradually from the housing connecting end; Described impeller 4 comprises minute impeller 5, and this impeller 4 adopts homonymy double-entry impeller structural type; Described drive motor is provided with coupling 6, and described pump shaft 3 is arranged on this coupling 6.The described pump housing 1 two ends are provided with rolling bearing, and the pump seal mode is packing seal or mechanical seal; The described pump housing 1 is provided with at least one cleaning hose 7, and the one end is connected to the pump housing 1 outside, and the other end extends to drive motor arbor and impeller 4 joints.Be provided with bindiny mechanism between the described pump housing and drive motor, this bindiny mechanism is provided with four screws, and is furnished with four bolts 8.Described impeller 4 is arranged on the pump shaft 3 of the pump housing 1 and pump cover 2 joint 150mm.
The distance of described impeller 4 centre distance coupling 6 ends is 150mm with the length of coupling 6, and described coupling 6 diameters of axle are 48mm, and the described pump shaft diameter of axle is 60mm.
Above-mentioned mode of execution is intended to illustrate the utility model and can be related domain professional and technical personnel realization or use; it will be apparent concerning those skilled in the art that above-mentioned mode of execution is modified; therefore the utility model includes but not limited to above-mentioned mode of execution; any these claims or specification of meeting described; meet and principle disclosed herein and novelty, the method for inventive features, technique, product, within all falling into protection domain of the present utility model.
Claims (6)
1. a novel little shaft extension cantilever is than double suction volute pump, comprise the pump housing, pump cover, pump shaft, impeller and drive motor, it is characterized in that: the described pump housing comprises shell, and this shell is scroll casing shape, which is provided with fluid pipeline, this fluid pipeline section area outwards increases gradually from the housing connecting end; Described impeller comprises a minute impeller, and this impeller adopts homonymy double-entry impeller structural type; Described drive motor is provided with coupling, and described pump shaft is arranged on this coupling.
2. novel little shaft extension cantilever according to claim 1 than double suction volute pump, is characterized in that: described pump housing two ends are provided with rolling bearing, and the pump seal mode is packing seal or mechanical seal; The described pump housing is provided with at least one cleaning hose, and the one end is connected to the pump housing outside, and the other end extends to drive motor arbor and impeller joint.
3. novel little shaft extension cantilever according to claim 2 than double suction volute pump, is characterized in that: be provided with bindiny mechanism between the described pump housing and drive motor, this bindiny mechanism is provided with four screws, and is furnished with four bolts.
4. novel little shaft extension cantilever according to claim 3 than double suction volute pump, is characterized in that: described impeller is arranged on the little pump shaft of the pump housing and suspension joint 150mm or large pump shaft.
5. according to claim 1-4 arbitrary described novel little shaft extension cantilevers than double suction volute pump, is characterized in that: the distance of described impeller centre distance coupling end is equal in length with coupling, and the coupling diameter of axle is greater than the pump shaft diameter of axle.
6. according to claim 1-4 arbitrary described novel little shaft extension cantilevers than double suction volute pump, is characterized in that: the distance of described impeller centre distance coupling end is 530mm, and the described coupling diameter of axle is 48mm, and the described pump shaft diameter of axle is 60mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220735210 CN203009311U (en) | 2012-12-28 | 2012-12-28 | Novel double-suction volute centrifugal pump with small shaft stretch cantilever ratio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220735210 CN203009311U (en) | 2012-12-28 | 2012-12-28 | Novel double-suction volute centrifugal pump with small shaft stretch cantilever ratio |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203009311U true CN203009311U (en) | 2013-06-19 |
Family
ID=48600909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220735210 Expired - Fee Related CN203009311U (en) | 2012-12-28 | 2012-12-28 | Novel double-suction volute centrifugal pump with small shaft stretch cantilever ratio |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203009311U (en) |
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2012
- 2012-12-28 CN CN 201220735210 patent/CN203009311U/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: 20130619 Termination date: 20171228 |