CN202170895U - Novel axis-flow pump - Google Patents
Novel axis-flow pump Download PDFInfo
- Publication number
- CN202170895U CN202170895U CN2011202549848U CN201120254984U CN202170895U CN 202170895 U CN202170895 U CN 202170895U CN 2011202549848 U CN2011202549848 U CN 2011202549848U CN 201120254984 U CN201120254984 U CN 201120254984U CN 202170895 U CN202170895 U CN 202170895U
- Authority
- CN
- China
- Prior art keywords
- flow pump
- diffuser
- blade body
- guide blade
- rubber bearing
- 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 - Fee Related
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a novel axis-flow pump, which comprises a guide blade body and a rubber bearing, the guide blade body and the rubber bearing are in coaxial connection through a screw. The novel axis-flow pump is characterized in that the combination surface of the guide blade body and the rubber bearing is a conical surface. The included angle of the combination surface is from 6 degrees to 10 degrees. Compared with a prior art, the novel axis-flow pump has the advantages of being capable of ensuring tightness of the combination surface of the guide blade body and the rubber bearing and avoiding relative movement between the guide blade body and the rubber bearing; and compact and simple in structure, convenient to manufacture, maintain and use, low in cost, reliable in work and long in service life.
Description
Technical field
The utility model relates to the plumbing equipment field, particularly a kind of axial-flow pump.
Background technique
Axial-flow pump is the pump of a kind of big flow, low lift, is widely used in occasions such as industrial and mining enterprise, urban water supply and sewerage, farmland discharging-irrigating.This pump mainly is made up of pump body and transmission two-part.The pump body is made up of suction bell, impeller housing, diffuser, Discharging bent-tube, impeller, pump shaft, rubber bush bearing etc.; Diffuser is by stator and diffusing tube alloying all-in-one-piece; Its effect is rotatablely moving of the liquid (water) eliminating to come out in the impeller, with the kinetic energy that rotatablely moves be converted into pressure can, and reduce flow velocity to reduce the hydraulic loss in the bend pipe; Improve the hydraulic efficiency of pump; The water lubricating rubber bearing is housed in the diffuser, plays the radial support effect, diffuser, rubber bush bearing are very important parts in the axial-flow pump.
Find in the practice, after axial-flow pump running a period of time, rubber bush bearing can be in diffuser play; The oscillating quantity of pump shaft is become greatly thereupon, and make pump galloping, the flow of pump decreases; Caused the damage of diffuser, rubber bush bearing, maintenance is frequent, and the parts replacement number of times increases; Consume a large amount of recondition expenses, brought hidden danger to safety in production simultaneously.The subject matter of analyzing its existence is that the surface of contact of diffuser endoporus and rubber bush bearing external diameter is gapped, can not closely fit together, and that has only elimination gap between the two to be only to deal with problems is basic.
Summary of the invention
The purpose of the utility model provides a kind of axial-flow pump, overcomes the deficiency of existing technology, eliminates the gap between diffuser and the rubber bush bearing, improves the life-span of diffuser and rubber bush bearing, makes the pump smooth operation, reduces vibration.
For solving the problems of the technologies described above, the technological scheme of the utility model is:
A kind of axial-flow pump comprises diffuser and rubber bush bearing, and diffuser is connected through screw is coaxial with rubber bush bearing, it is characterized in that, the junction plane of diffuser and rubber bush bearing is the conical surface.
Said junction plane angle is 6-10 °.
Compared with prior art, the beneficial effect of the utility model is: 1) can guarantee the tightness of diffuser and rubber bush bearing junction plane according to wedge slot supercharging principle, make between the two and can not produce relative movement.2) simple and compact for structure, manufacturing, maintenance, easy to use, cheap, reliable operation, long service life.
Description of drawings
Fig. 1 is the utility model example structure schematic representation.
Among the figure: 1-diffuser 2-rubber bush bearing 3-screw 4-junction plane
Embodiment
Be described further below in conjunction with the embodiment of accompanying drawing the utility model:
See Fig. 1; Be a kind of axial-flow pump example structure of the utility model schematic representation, comprise diffuser 1 and rubber bush bearing 2, diffuser 1 and rubber bush bearing 2 are through 3 coaxial connections of screw; The angle of the junction plane 4 of diffuser 1 and rubber bush bearing 2 is 6-10 °, and effect is best when being 8 ° with angle especially.
Utilize wedge slot supercharging principle; The vertical pressure of screw 3 produces vertical stress component on junction plane 4, diffuser and rubber bush bearing are combined closely, has both prolonged the working life of diffuser, rubber bush bearing; Eliminated the big hidden danger that influence is produced again, great promotional value has been arranged.
Claims (2)
1. an axial-flow pump comprises diffuser and rubber bush bearing, and diffuser is connected through screw is coaxial with rubber bush bearing, it is characterized in that, the junction plane of diffuser and rubber bush bearing is the conical surface.
2. a kind of axial-flow pump according to claim 1 is characterized in that, said junction plane angle is 6-10 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202549848U CN202170895U (en) | 2011-07-18 | 2011-07-18 | Novel axis-flow pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202549848U CN202170895U (en) | 2011-07-18 | 2011-07-18 | Novel axis-flow pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202170895U true CN202170895U (en) | 2012-03-21 |
Family
ID=45829091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202549848U Expired - Fee Related CN202170895U (en) | 2011-07-18 | 2011-07-18 | Novel axis-flow pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202170895U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486327A (en) * | 2019-09-02 | 2019-11-22 | 江苏省沙集闸站管理所 | A kind of novel vertical mixed-flow pump |
-
2011
- 2011-07-18 CN CN2011202549848U patent/CN202170895U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486327A (en) * | 2019-09-02 | 2019-11-22 | 江苏省沙集闸站管理所 | A kind of novel vertical mixed-flow pump |
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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 |
Granted publication date: 20120321 Termination date: 20180718 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |