CN2041737U - Single-stage centrifugal pump impeller and front armour plate clearance-adjusting mechanism - Google Patents
Single-stage centrifugal pump impeller and front armour plate clearance-adjusting mechanism Download PDFInfo
- Publication number
- CN2041737U CN2041737U CN 88200958 CN88200958U CN2041737U CN 2041737 U CN2041737 U CN 2041737U CN 88200958 CN88200958 CN 88200958 CN 88200958 U CN88200958 U CN 88200958U CN 2041737 U CN2041737 U CN 2041737U
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- CN
- China
- Prior art keywords
- centrifugal pump
- stage centrifugal
- impeller
- clearance
- protective plate
- 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.)
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Abstract
The utility model belongs to the improvement of the single-stage centrifugal pump impeller and the front protective plate clearance-adjusting mechanism, which is characterized in that the front protective plate clearance-adjusting mechanism adopts an adjusting bolt which impels the front protective plate to make the axial movement from the fluid end to the power end, and the impeller and the front protective plate are kept the optimum clearance. The utility model which has the advantages of simple structure and convenient adjustment is free from the limiting of the transmission form; the single-stage centrifugal pump impeller and the front protective plate clearance-adjusting mechanism can effectively adjust the clearance between the impeller and the front protective plate, and accordingly, higher volume efficiency of the single-stage centrifugal pump can be kept, and the single-stage centrifugal pump impeller is made to lie in the efficient operating state.
Description
The utility model belongs to a kind of improvement of one-stage centrifugal pump impeller and apron plate clearance adjustment mechanism.
Have in the liquid process of revolving floating particles or other impurity in conveying, single stage centrifugal pump is one of important equipment.In order to guarantee that single stage centrifugal pump is in high-efficient operation for a long time, after the hydrodynamic unit wearing and tearing, should in time adjust gap between impeller and the apron plate.At present the single stage centrifugal pump that uses all is to regulate pump shaft or bearing unit to move axially to fluid end from power end with the impeller of axle head, with the maintenance single stage centrifugal pump higher volumetric efficiency is arranged, but this regulating method has the following disadvantages:
1. destroyed impeller and housing to neutrality, produce hydraulic loss.
2. when regulating impeller and apron plate gap, make impeller back blade and back backplate, the gap of paying between impeller and the decompression lid increase, the back-pressure ability that has reduced back blade and paid impeller is accelerated the wearing and tearing and the leakage of axle envelope; Simultaneously, the axial force that produces on impeller can not be kept balance.
3. for the single-stage pump that adopts the coupling type of belt drive, must take coupling apart during adjustment or mobile motor can be adjusted; For the single-stage pump of belt transmission form, when adjusting play accumulative total surpasses 2mm, must mobile motor or pump when adjusting again.
The purpose of this utility model is the mechanism that a kind of improved adjustment impeller and apron plate gap will be provided, and it is not subjected to the restriction of type of belt drive, can reduce the internal leakage of pump effectively, keeps pump that higher volumetric efficiency is arranged, and makes pump be in the high-efficient operation state.
The utility model is achieved in that adjustment is bolted on the apron plate, according to the screw mechanism principle, regulate and adjust nut, promote to adjust bolt and drive apron plate to move axially to power end from fluid end, make apron plate and impeller be in best clearance, thereby make pump obtain higher volumetric efficiency.
The utility model adopts the adjusting apron plate to move axially to power end from fluid end because be, do not influence impeller and housing to neutrality and impeller back blade and back backplate, pay the gap of impeller between covering with decompression, be not subjected to simultaneously the restriction of type of belt drive, so simple in structure, easy to adjust.
The concrete structure of model utility is provided by following embodiment and accompanying drawing thereof.
Fig. 1 is regulating mechanism schematic representation (Figure of description), 1. housing, 2. impeller, 3. apron plate, 4. adjustment bolt, 5. sealing plate, 6. Sealing, 7. flange, 8. set screw nut, 9. adjustment nut, 10. spring washer.
Fig. 2 is the A-A sectional drawing of Fig. 1,1. screw, 2. sealing gasket, 3. set screw nut, 4. adjustment bolt, 5. sealing plate, 6. Sealing.
Describe in detail according to concrete details and the working condition that the utility model proposes below in conjunction with Fig. 1.
This regulating mechanism comprises an apron plate (3), there be 2-4 to adjust bolt (4), one end passes flange (7) and is fixed on the apron plate (3), on adjustment bolt (4) external diameter, sealing plate (5) is housed, Sealing (6) is housed on sealing plate (5), sealing plate (5) is screwed on flange (7), is equipped with on the other end of adjustment bolt (4) to adjust nut (9) and set screw nut (8).
When adjusting between impeller (2) and the apron plate (3) gap, unclamp set screw nut (8) earlier, regulating adjustment nut (9) then makes adjustment bolt (4) promotion apron plate (3) move axially to power end from fluid end, apron plate (3) and impeller (2) are in till the best clearance, thereby keep pump that higher volumetric efficiency is arranged, make pump be in the high-efficient operation state.
Claims (2)
1, a kind of one-stage centrifugal pump impeller and apron plate clearance adjustment mechanism of being used for, there is an apron plate in this mechanism, it is characterized in that having 2-4 to adjust bolt, one end passes flange and is fixed on the apron plate, on adjustment bolt external diameter, sealing plate is housed, Sealing is housed on sealing plate, and sealing plate is screwed on flange, is equipped with on the other end of adjustment bolt and adjusts nut and set screw nut.
2, regulating mechanism according to claim 1 is characterized in that regulating adjustment bolt promotion apron plate and moves axially to power end from fluid end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88200958 CN2041737U (en) | 1988-01-19 | 1988-01-19 | Single-stage centrifugal pump impeller and front armour plate clearance-adjusting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88200958 CN2041737U (en) | 1988-01-19 | 1988-01-19 | Single-stage centrifugal pump impeller and front armour plate clearance-adjusting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2041737U true CN2041737U (en) | 1989-07-26 |
Family
ID=4836270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88200958 Pending CN2041737U (en) | 1988-01-19 | 1988-01-19 | Single-stage centrifugal pump impeller and front armour plate clearance-adjusting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2041737U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145494A (en) * | 2019-04-28 | 2019-08-20 | 江苏大学 | A kind of pump case for capableing of equilibrium centrifugation pump axial force |
-
1988
- 1988-01-19 CN CN 88200958 patent/CN2041737U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145494A (en) * | 2019-04-28 | 2019-08-20 | 江苏大学 | A kind of pump case for capableing of equilibrium centrifugation pump axial force |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| AD01 | Patent right deemed abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |