CN2229564Y - Non-leakage paddle pump - Google Patents
Non-leakage paddle pump Download PDFInfo
- Publication number
- CN2229564Y CN2229564Y CN 95204620 CN95204620U CN2229564Y CN 2229564 Y CN2229564 Y CN 2229564Y CN 95204620 CN95204620 CN 95204620 CN 95204620 U CN95204620 U CN 95204620U CN 2229564 Y CN2229564 Y CN 2229564Y
- Authority
- CN
- China
- Prior art keywords
- impeller
- bearing
- transmission shaft
- vane pump
- return port
- 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
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 238000001816 cooling Methods 0.000 claims abstract description 5
- 238000000926 separation method Methods 0.000 claims description 5
- 230000001050 lubricating effect Effects 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000005755 formation reaction Methods 0.000 claims description 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000005461 lubrication Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 238000010992 reflux Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a non-leakage vane pump, comprising a lubrication system for cooling a bearing which is made up of a high-pressure drainage tube, a bearing, the water guiding channel of the bearing, etc. An axial back flow hole is arranged at the back end of a transmission shaft; a radical back flow hole is arranged on the intermediate section of the transmission shaft corresponding to the outboard cavity of the back cover plate of an impeller; the back flow at the back end of the bearing is led to the outside cavity of the back cover plate of the impeller through the through groove of the wheel boss of the impeller to be recycled. The utility model can reduce the loss of volume, and avoid that the cavitation resistance and the overall efficiency of a pump is decreased due to the fact that principal flow is impacted by the back flow.
Description
The utility model relates to a kind of pump, and especially a kind of nothing is leaked vane pump.
Do not have the leakage vane pump and stop to leak, be widely used in fields such as food, chemical industry with the inside and outside type of belt drive of separation sleeve separation; Drive part is installed in the carriage by the cooling and lubricating bearing fixing in it, and cooling and lubricating stream is introduced by the high-pressure induct hole, and release the headrace through double supporting structure front and back bearings headrace or before and after the single support structure bearing; Front end refluxes and leaks into chamber, the back shroud of impeller outside, is reclaimed by the back blade pressurization that the disk effect or the back shroud of back shroud of impeller rotation generation are set up; Reflux and release (German KLAUS UNION product) by the impeller nut front end or connect reflow pipe importing pump suction chamber in addition through transmission shaft hollow discharge orifice in the rear end, reflux and leak into Pump Suction Nozzle in this kind structural type rear end, cause certain volumetric loss, and, reduce the cavitation-resistance and the overall efficiency of pump owing to reflux to the impact of main flow proper flow.
The purpose of this utility model is to overcome above-mentioned prior art deficiency, and provides a kind of rear end of reclaiming reflux to reduce volumetric loss, and the impact to main flow of avoiding refluxing, and the nothing that improves pump cavitation-resistance and overall efficiency is leaked vane pump.
The purpose of this utility model can realize by following measure:
A kind of nothing is leaked vane pump, the bearing cooling and lubricating system that comprises high-pressure induct pipe (5), bearing (13) and formations such as headrace (6) thereof on housing (1), impeller (3), carriage (8), transmission shaft (7), separation sleeve (9) and the carriage (8), there is axial return port (14) transmission shaft (7) rear end, there is radially return port (12) in relative back shroud of impeller chamber, the outside (4) in transmission shaft (7) stage casing, through impeller hub groove (11) is refluxed in bearing (13) rear end and guides chamber (4), the back shroud of impeller outside into.
The utility model also can be set up back blade (10) at impeller (3) back shroud, to strengthen recovering effect; And the axial return port (14) of transmission shaft (7) can be processed as through hole, its front end is by impeller nut (2) sealing, with simplified processing process.
During the utility model work, the front end that directly leaks into impeller (3) back shroud chamber, the outside (4) through bearing headrace (6) refluxes, and through the bearing headrace---axially return port (14)---radially reflux return port (12) rear end that leaks into back shroud of impeller chamber, the outside (4), reclaimed by the disk effect of impeller (3) generation or the back blade of setting up (10), reducing refluxes directly releases the volumetric loss of generation; And avoided refluxing, thereby improve the cavitation-resistance and the overall efficiency of pump to the impact of main flow proper flow.
The utlity model has following advantage:
1, reclaims lubricated the backflow, reduce volumetric loss;
2, avoid the flow-reversing impingement main flow, improve the cavitation-resistance and the overall efficiency of pump.
3, simple in structure, can not influence existing vane pump structural type.
The utility model accompanying drawing drawing is described as follows:
Fig. 1 is the utility model structural representation
1-housing, 2-impeller nut, 3-impeller
5-high-pressure induct hole, chamber, 4-back shroud of impeller outside
6-bearing headrace, 7-transmission shaft, 8-carriage
9-separation sleeve, 10-back blade, 11-impeller hub groove
12-radially return port 13-bearings 14-axial return port
Claims (3)
1, a kind of nothing is leaked vane pump, the bearing cooling and lubricating system that comprises high-pressure induct pipe (5), bearing (13) and formations such as headrace (6) thereof on housing (1), impeller (3), carriage (8), transmission shaft (7), separation sleeve (9) and the carriage (8), it is characterized in that: there is axial return port (14) transmission shaft (7) rear end, there is radially return port (12) in relative back shroud of impeller chamber, the outside (4) in transmission shaft (7) stage casing, through impeller hub groove (11) is refluxed in bearing (13) rear end and guides chamber (4), the back shroud of impeller outside into.
2, a kind of nothing according to claim 1 is leaked vane pump, and it is characterized in that: impeller (3) back shroud has been set up back blade (10).
3, leak vane pump according to claim 1,2 described a kind of nothings, it is characterized in that: transmission shaft (7) axially return port (14) is a through hole, and its front end is sealed by impeller nut (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95204620 CN2229564Y (en) | 1995-03-04 | 1995-03-04 | Non-leakage paddle pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95204620 CN2229564Y (en) | 1995-03-04 | 1995-03-04 | Non-leakage paddle pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2229564Y true CN2229564Y (en) | 1996-06-19 |
Family
ID=33857086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95204620 Expired - Fee Related CN2229564Y (en) | 1995-03-04 | 1995-03-04 | Non-leakage paddle pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2229564Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003408A (en) * | 2010-05-07 | 2011-04-06 | 江苏大学 | Low specific speed centrifugal impeller with radial backflow holes |
| CN102066765A (en) * | 2008-06-13 | 2011-05-18 | 伟尔矿物澳大利亚私人有限公司 | Lubricant retainer for pump shaft bearing assembly |
-
1995
- 1995-03-04 CN CN 95204620 patent/CN2229564Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102066765A (en) * | 2008-06-13 | 2011-05-18 | 伟尔矿物澳大利亚私人有限公司 | Lubricant retainer for pump shaft bearing assembly |
| CN102066765B (en) * | 2008-06-13 | 2014-06-04 | 伟尔矿物澳大利亚私人有限公司 | Bearing assembly for pump shaft |
| CN102003408A (en) * | 2010-05-07 | 2011-04-06 | 江苏大学 | Low specific speed centrifugal impeller with radial backflow holes |
| CN102003408B (en) * | 2010-05-07 | 2013-01-02 | 江苏大学 | Low specific speed centrifugal impeller with radial backflow holes |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN213511231U (en) | Vertical self-priming pump | |
| CN108412778A (en) | A kind of motor preposition formula submersed three-flow pump | |
| CN2229564Y (en) | Non-leakage paddle pump | |
| CN112096617B (en) | Vertical self-priming pump | |
| CN106762854A (en) | A kind of anti-cavitation double feed inlet double-suction multi-stage pump | |
| CN116066411A (en) | Double-volute efficient energy-saving mining water pump and mounting method and working method thereof | |
| CN114233684B (en) | High-speed high-pressure centrifugal pump | |
| CN2252256Y (en) | Sectional type multistage pump | |
| CN113294347B (en) | Vertical double-suction pump and design method thereof | |
| CN113898589A (en) | Corrosion-resistant self-priming pump | |
| CN207598589U (en) | Inhibit the centrifugal pump device of impeller blade cavitation | |
| CN2241242Y (en) | Propeller pump | |
| CN2229565Y (en) | Efficient non-leakage paddle pump | |
| CN209838671U (en) | Circulating water cooling device of oil-free vertical vacuum pump | |
| CN2359499Y (en) | Vertical plastic-lined self-priming pump | |
| CN215566718U (en) | Self-balancing multistage pump throttling bush and throttling bush fit clearance on-line monitoring device | |
| CN215672847U (en) | A prevent leaking positive and negative final stage and flow through subassembly for self-balancing multistage centrifugal pump | |
| CN216894919U (en) | First-stage double-suction impeller structure for multi-stage pump | |
| CN215890582U (en) | Horizontal two-stage low-cavitation high-flow centrifugal pump | |
| CN2811627Y (en) | Seal-free self-priming pump | |
| CN213451033U (en) | Preposition device for improving cavitation performance of water pump | |
| CN212867651U (en) | Oil-tight oil supply unit of oil pump for turbo expander | |
| CN2660189Y (en) | Simmer kernel-class centrifugal fan | |
| CN210660703U (en) | Novel horizontal mud pump | |
| CN216741982U (en) | Gear pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE; FROM: XIN YULIN TO: CHINESE ACADEMY OF SCIENCES LANZHOU INSTITUTE OF GEOLOGY |
|
| CP03 | Change of name, title or address |
Address after: Gansu Blue City Donggang West Road No. 324 Li Jietong. Patentee after: Lanzhou Inst. of Geology, Chinese Academy of Sciences Address before: Gansu, Lanzhou, Tian Shui No. 234 patent transfer Patentee before: Xin Yulin |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |