CN203906379U - Small-flow pump - Google Patents
Small-flow pump Download PDFInfo
- Publication number
- CN203906379U CN203906379U CN201420342753.6U CN201420342753U CN203906379U CN 203906379 U CN203906379 U CN 203906379U CN 201420342753 U CN201420342753 U CN 201420342753U CN 203906379 U CN203906379 U CN 203906379U
- Authority
- CN
- China
- Prior art keywords
- pump
- impeller
- cover
- wearing plate
- shaft
- 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.)
- Expired - Lifetime
Links
- 238000007789 sealing Methods 0.000 claims abstract description 26
- 238000005299 abrasion Methods 0.000 abstract 4
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000004891 communication Methods 0.000 description 4
- 210000004907 gland Anatomy 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003079 width control Methods 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a small-flow pump. The pump comprises a pump body, a pump cover, a pump shaft and a sealing part, wherein the pump shaft is mounted in a cavity formed after assembly of the pump body and the pump cover through a bearing part; the sealing part is assembled in a sealing position of the pump shaft; the pump cover is located at one end, which is provided with an impeller, of the pump shaft and is axially provided with an anti-abrasion plate, and an impeller working chamber is formed by the anti-abrasion plate and the axial end surface of the pump cover, that is, the impeller can rotate in the impeller working chamber freely; the anti-abrasion plate and the pump body are assembled in a sealed manner. According to the pump adopting the technical scheme, the pump body, the pump cover, the pump shaft, the sealing part and the bearing part can be assembled by universal parts, a fixed base structure is formed, output data of the pump are changed through replacement of the anti-abrasion plate and the impeller, the mounting structure is simple and reliable, all parts are simple to machine and manufacture, and the pump is easy to assemble and maintain.
Description
Technical field
The utility model relates to single-stage cantilever centrifugal pump, particularly a kind ofly changes the low-capacity pump that Local Members is variable data on flows.
Background technique
At present, all trades and professions are very extensive to the demand of small-sized flow pump, particularly chemical industry, application is very complicated, and what have requires flow, and what have requires lift, in the time that the low-capacity pump of current use is undesirable, can only realize by changing pump main body completely, the type of low-capacity pump is very limited simultaneously, this demand that is difficult to meet various occasions; So just need a kind of new pump that can change pump output data by changing the Local Members of low-capacity pump.
Summary of the invention
The utility model, for above-mentioned technical problem, proposes a kind of new pump that can change pump output data by changing the Local Members of low-capacity pump.
For reaching above object, be achieved through the following technical solutions:
A kind of low-capacity pump, comprising: the pump housing, and pump cover, is installed on the pump housing and the rear pump shaft of chamber interior and the sealed member of shaft seal position assembling of forming of pump cover assembling by bearing part;
Pump shaft is positioned at pump housing suction chamber end and is provided with impeller, and impeller is synchronizeed and rotated assembling with pump shaft;
Pump cover is positioned at pump shaft assembling impeller end and is axially equipped with wearing plate, and wearing plate and pump cover axial end formation impeller active chamber, and impeller can rotate in impeller active chamber internal freedom; Wearing plate and pump housing sealing assembling, can arrange seal ring or sealing gasket realization sealing by wearing plate surface of contact;
Between wearing plate and pump cover, for being detachably fixedly connected with, generally select bolt to connect, ensure the convenience of fixing firm and dismounting;
Impeller active chamber is communicated with pump housing suction chamber;
Wearing plate is provided with the current limliting groove for being communicated with impeller active chamber and outlet section with pump cover fitting tight position;
Impeller general export width is defined as n;
Adopt the utility model of technique scheme, the pump housing, pump cover, pump shaft, sealed member and bearing part can be universal component assembling, form fixed infrastructure, in the time that the flow to pump or lift demand change, can be by changing n, to meet the demands, the change of the output data of pump only relates to and changes wearing plate and change impeller like this, like this in the case of the main component of pump is general, changing a few components can change the output data of pump, greatly improve the Applicable scope of low-capacity pump, and be easy to assembling.
Wherein, homologous series pump can not be general except wearing plate and impeller, the pump housing, pump cover, bearing part, sealed member are identical, have greatly improved the versatility of the each component of homologous series pump.
According to the difference of medium, can select the pump housing, pump cover, impeller and the wearing plate of unlike material; According to the difference of operating mode, sealed member can be selected the different sealing patterns such as single envelope, two envelopes, and bearing part can be selected the different types such as radiating fin, water-cooled.
Note: suction chamber is the aspiration chamber that the pump housing is in communication with the outside; Outlet section is the discharge side that the pump housing is in communication with the outside.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, and can be implemented according to the content of specification, and for above and other object of the present utility model, feature and advantage can be become apparent, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.
Brief description of the drawings
The utility model is totally 2 width accompanying drawings, wherein:
Fig. 1 is cross-sectional view of the present utility model.
Fig. 2 is the cross-sectional view of the utility model impeller.
In figure: 1, the pump housing, 2, pump cover, 3, pump shaft, 4, impeller, 5, wearing plate, 6, current limliting groove, A, suction chamber, B, impeller active chamber, C, outlet section.
Embodiment
A kind of low-capacity pump as shown in Figure 1, comprising: the pump housing 1, and pump cover 2, is installed on the pump housing 1 and the rear pump shaft 3 of chamber interior and the sealed member of pump shaft 3 sealing positions assemblings of forming of pump cover 2 assemblings by bearing part; Wherein, sealed member mainly comprises: sealing gland, sealing axle sleeve, rotary packing ring, stationary seal ring etc., be fixed between pump cover, pump shaft and impeller, for sealing pump shaft and pump cover gap; (sealing gland and pump cover sealing assembling, axle sleeve is fixed between pump shaft and impeller and seals with impeller sealing ring or sealing gasket, rotating ring and the sealing of sleeve sealing circle, dynamic and static seal ring liquid film seal, stationary seal ring and sealing gland sealing assembling; )
Pump shaft 3 is positioned at the pump housing 1 suction chamber A end and is provided with impeller 4, and impeller 4 synchronize rotation and is assembled with pump shaft 3;
Pump cover 2 is positioned at pump shaft 3 and assembles impeller 4 ends and be axially equipped with wearing plate 5, and wearing plate 5 forms impeller active chamber B with pump cover 2 axial ends, and impeller 4 can rotate in impeller active chamber B internal freedom; Wearing plate 5 and the pump housing 1 sealing assembling, can arrange seal ring or sealing gasket realization sealing by wearing plate 5 surface of contact;
Between wearing plate 5 and pump cover 2, for being detachably fixedly connected with, generally select bolt to connect, ensure the convenience of fixing firm and dismounting;
Impeller active chamber B is communicated with the pump housing 1 suction chamber A;
Wearing plate 5 is provided with the current limliting groove 6 for being communicated with impeller active chamber B and outlet section C with pump cover 2 fitting tight positions;
Impeller general export width is defined as n;
Impeller 4 as shown in Figure 2, is front opened impeller, is made up of impeller primary blades, back shroud of impeller, back blade, with the distinctive points of common impeller is: primary blades, back blade quantity are more than common impeller; The exit width of primary blades is less than common impeller; Can change the requirement that n value meets different flow, lift, and general common impeller outlet width is definite value, cannot meets different flow, lift.
Adopt the utility model of technique scheme, the pump housing 1, pump cover 2, pump shaft 3, sealed member and bearing part can be universal component assembling, form fixed infrastructure, in the time that the flow to pump or lift demand change, can be by changing n, to meet the demands, the change of the output data of pump only relates to and changes wearing plate 5 and change 4 two parts of impeller like this, like this in the case of the main component of pump is general, changing a few components can change the output data of pump, has greatly improved the Applicable scope of low-capacity pump.
The I of this pump duty reaches 0.1m3/h, and lift reaches as high as 300m, and rotating speed is 2900r/min or 1450r/min, has flow very little, the advantage that lift is high.Homologous series pump is by wearing plate current limliting groove and blade exit width control flow, to meet different flow requirement; Homologous series pump can not be general except wearing plate and impeller, the pump housing, pump cover, bearing part, sealed member are identical, have greatly improved the versatility of the each component of homologous series pump, are easy to assembling and maintenance simultaneously.
Separately, according to the difference of medium, can select the pump housing 1, pump cover 2, impeller 4 and the wearing plate 5 of unlike material; According to the difference of operating mode, sealed member can be selected the different sealing patterns such as single envelope, two envelopes, and bearing part can be selected the different types such as radiating fin, water-cooled.
Note: suction chamber is the aspiration chamber that the pump housing is in communication with the outside; Outlet section is the discharge side that the pump housing is in communication with the outside.
The above, it is only preferred embodiment of the present utility model, not the utility model is done to any pro forma restriction, although the utility model discloses as above with preferred embodiment, but not in order to limit the utility model, any those skilled in the art are not departing within the scope of technical solutions of the utility model, appeal when utilizing the equivalent embodiment that the technology contents disclosing is made a little change or is modified to equivalent variations, in every case be the content that does not depart from technical solutions of the utility model, foundation technical spirit of the present utility model is to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (2)
1. a low-capacity pump, it is characterized in that, comprise: the pump housing (1), pump cover (2), is installed on the pump housing (1) and the rear pump shaft (3) of chamber interior and the sealed member of pump shaft (3) sealing position assembling of forming of pump cover (2) assembling by bearing part;
Described pump shaft (3) is positioned at the pump housing (1) suction chamber (A) end and is provided with impeller (4);
Described pump cover (2) is positioned at pump shaft (3) assembling impeller (4) end and is axially equipped with wearing plate (5), and described wearing plate (5) forms impeller active chamber (B) with pump cover (2) axial end, and impeller (4) can rotate in impeller active chamber (B) internal freedom; Wearing plate (5) and the pump housing (1) sealing assembling
Between described wearing plate (5) and pump cover (2) for being detachably fixedly connected with;
Described impeller active chamber (B) is communicated with the pump housing (1) suction chamber (A);
Described wearing plate (5) is provided with the current limliting groove (6) for being communicated with impeller active chamber (B) and outlet section (C) with pump cover (2) fitting tight position.
2. a kind of low-capacity pump according to claim 1, is characterized in that: described impeller (4) front opened impeller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420342753.6U CN203906379U (en) | 2014-06-24 | 2014-06-24 | Small-flow pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420342753.6U CN203906379U (en) | 2014-06-24 | 2014-06-24 | Small-flow pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203906379U true CN203906379U (en) | 2014-10-29 |
Family
ID=51780662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420342753.6U Expired - Lifetime CN203906379U (en) | 2014-06-24 | 2014-06-24 | Small-flow pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203906379U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110500313A (en) * | 2019-08-28 | 2019-11-26 | 杨甫在 | A kind of centrifugal high pressure power hydraulic pump |
-
2014
- 2014-06-24 CN CN201420342753.6U patent/CN203906379U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110500313A (en) * | 2019-08-28 | 2019-11-26 | 杨甫在 | A kind of centrifugal high pressure power hydraulic pump |
| CN110500313B (en) * | 2019-08-28 | 2021-09-07 | 杨甫在 | High-pressure centrifugal force hydraulic pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141029 |
|
| CX01 | Expiry of patent term |