CN201874836U - Multistage centrifugal pump with balance drum structure - Google Patents
Multistage centrifugal pump with balance drum structure Download PDFInfo
- Publication number
- CN201874836U CN201874836U CN2010205814291U CN201020581429U CN201874836U CN 201874836 U CN201874836 U CN 201874836U CN 2010205814291 U CN2010205814291 U CN 2010205814291U CN 201020581429 U CN201020581429 U CN 201020581429U CN 201874836 U CN201874836 U CN 201874836U
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- Prior art keywords
- pump
- multistage centrifugal
- centrifugal pump
- bearing
- shaft
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- 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 - Lifetime
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- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000005096 rolling process Methods 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A multistage centrifugal pump with a balance drum structure belongs to the field of multistage centrifugal pump. The multistage centrifugal pump comprises a pump body of the multistage centrifugal pump, wherein a pump shaft is installed in the pump body through a balance drum and a balance sleeve, and a bearing body of the pump shaft is arranged at the input end of the pump shaft. The multistage centrifugal pump is characterized in that a shaft sleeve is arranged at the tail end of the pump shaft and installed in slide bearing; a round nut is arranged on the outer side of the shaft sleeve; the position of the shaft sleeve is fixed through the round nut and the balance drum; and the slide bearing is installed on the pump body through a bearing box. As a slide bearing structure is adopted, and the shaft sleeve is fixed through the round nut and the balance drum, the bearing body of the pump shaft, a support and a rolling bearing in the multistage centrifugal pump serving as a horizontal centrifugal pump are eliminated, the seal is reduced by 50%, the maintenance is convenient, the structure is greatly simplified, the slide bearing of the pump can be installed by group; and meanwhile, the operation resistance is reduced, and the efficiency is improved.
Description
Technical field
The utility model belongs to the multistage centrifugal pump field, is a kind of balancing drum structure multistage centrifugal pump specifically.
Background technique
Multistage centrifugal pump is one of key equipment of industry fed sheet of a media such as oil, chemical industry, electric power.At present, the multistage centrifugal pump two ends of balance drum-type structure are provided with bearing support usually.Like this, axially form by two cover sealings.By facts have proved, be provided with more, the dismounting inconvenience, pump shaft is cumbersome to seal leakage maintenance.
The model utility content
According to above deficiency of the prior art, problem to be solved in the utility model provides balancing drum structure multistage centrifugal pump a kind of easy to maintenance, energy-efficient.
The utility model is that the technological scheme that the technical solution problem is adopted is: balancing drum structure multistage centrifugal pump, comprise the multistage centrifugal pump pump housing, by balancing drum and balance set pump shaft is installed in the pump housing, the input end of pump shaft is provided with the pump bearing body, it is characterized in that: the end of pump shaft is provided with axle sleeve, and axle sleeve is installed in the sliding bearing, axle sleeve arranged outside round nut, axle sleeve is by round nut and balancing drum fixed position, and sliding bearing is fixed on the pump housing by bearing box.
By adopting sliding bearing structure, cancellation pump bearing body, support and rolling bearing simplify the structure greatly, and the pump sliding bearing can be installed in groups; Reduce running resistance simultaneously, improved efficient.
Wherein preferred version is:
Described bearing box is provided with sheath.Be used to protect the end of pump shaft, and sliding bearing.
Described sheath is provided with plug.Plug is a drain boles.
The o RunddichtringO is set between the described bearing box and the pump housing.Increase sealing effect.
The beneficial effect that the utility model balancing drum structure multistage centrifugal pump is had is: by adopting sliding bearing structure, and fix by round nut and balancing drum, make that multistage centrifugal pump is that horizontal centrifugal pump can be cancelled pump bearing body, support and rolling bearing, sealing reduces 50%, easy to maintenance, simplify the structure greatly, the pump sliding bearing can be installed in groups; Reduce running resistance simultaneously, improved efficient.
Description of drawings
Fig. 1 is embodiment's 1 an of the present utility model structural representation;
Wherein: 1, plug 2, sheath 3, round nut 4, axle sleeve 5, o RunddichtringO 6, sliding bearing 7, bearing box 8, balancing drum 9, balance set.
Specific embodiments
Below in conjunction with accompanying drawing embodiment of the present utility model is described:
Embodiment 1:
As shown in Figure 1, by balancing drum 8 and balance set 9 pump shaft is installed in the multistage centrifugal pump pump housing, the input end of pump shaft is provided with the pump bearing body, the end of pump shaft is provided with axle sleeve 4, axle sleeve 4 is installed in the sliding bearing 6, axle sleeve 4 arranged outside round nuts 3, axle sleeve 4 is by round nut 3 and balancing drum 8 fixed positions, and sliding bearing 6 is fixed on the pump housing by bearing box 7.O RunddichtringO 5 is set between the bearing box 7 and the pump housing.Bearing box 7 is provided with sheath 2.Sheath 2 is provided with plug 1.
The multistage centrifugal pump pump housing of the utility model setting and pump shaft are common prior art, and its setting and use are common prior art, and the technician is grasped by the industry.
Working principle and using process:
By adopting sliding bearing 6 structures, cancellation pump bearing body, support etc. simplify the structure greatly, and pump sliding bearing 6 can be installed in groups; Reduce running resistance simultaneously, improved efficient.
Claims (4)
1. balancing drum structure multistage centrifugal pump, comprise the multistage centrifugal pump pump housing, by balancing drum and balance set pump shaft is installed in the pump housing, the input end of pump shaft is provided with the pump bearing body, it is characterized in that: the end of pump shaft is provided with axle sleeve, and axle sleeve is installed in the sliding bearing, axle sleeve arranged outside round nut, axle sleeve is by round nut and balancing drum fixed position, and sliding bearing is fixed on the pump housing by bearing box.
2. balancing drum structure multistage centrifugal pump according to claim 1, it is characterized in that: described bearing box is provided with sheath.
3. balancing drum structure multistage centrifugal pump according to claim 2, it is characterized in that: described sheath is provided with plug.
4. balancing drum structure multistage centrifugal pump according to claim 1 is characterized in that: the o RunddichtringO is set between the described bearing box and the pump housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205814291U CN201874836U (en) | 2010-10-29 | 2010-10-29 | Multistage centrifugal pump with balance drum structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205814291U CN201874836U (en) | 2010-10-29 | 2010-10-29 | Multistage centrifugal pump with balance drum structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201874836U true CN201874836U (en) | 2011-06-22 |
Family
ID=44162754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205814291U Expired - Lifetime CN201874836U (en) | 2010-10-29 | 2010-10-29 | Multistage centrifugal pump with balance drum structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201874836U (en) |
-
2010
- 2010-10-29 CN CN2010205814291U patent/CN201874836U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20190523 Granted publication date: 20110622 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110622 |
|
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20201029 Granted publication date: 20110622 |