CN102444613A - Looseness-preventing mechanism in reversion of pump impeller - Google Patents
Looseness-preventing mechanism in reversion of pump impeller Download PDFInfo
- Publication number
- CN102444613A CN102444613A CN2011104349520A CN201110434952A CN102444613A CN 102444613 A CN102444613 A CN 102444613A CN 2011104349520 A CN2011104349520 A CN 2011104349520A CN 201110434952 A CN201110434952 A CN 201110434952A CN 102444613 A CN102444613 A CN 102444613A
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- CN
- China
- Prior art keywords
- impeller
- main shaft
- axle sleeve
- shaft sleeve
- sleeve
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/20—Mounting rotors on shafts
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to a looseness-preventing mechanism in reversion of a pump impeller, which is characterized by comprising the impeller, a cylinder pin, a shaft sleeve, an inner hexagon screw, an upper shaft sleeve, a main shaft, a plane and a coupling thread, wherein the impeller is screwed on the main shaft by the coupling thread; the impeller abuts against the shaft sleeve which abuts against the upper shaft sleeve, so that the axial movement of the impeller is limited; the impeller is connected with the shaft sleeve by the cylinder pin, and the relative movement of the impeller and the shaft sleeve in the circumferential direction is limited, so that the synchronous rotation of the impeller and the shaft sleeve is ensured; and the inner hexagon screw is screwed on the shaft sleeve and abuts against the plane on the main shaft to limit the relative movement the shaft sleeve and the main shaft in the circumferential direction, so that the synchronous rotation of the shaft sleeve and the main shaft is ensured. The looseness-preventing mechanism has the advantages that the taken measure is as follows: the plane is cut on the original main shaft and simple parts such as a column pin, the inner hexagon screw and the like are added, so that the looseness preventing action in reversion of the impeller can be effectively played. The method is very simple, convenient and reliable, and the cost is low.
Description
Technical field
What the present invention relates to is a kind of pump impeller counter-rotating anti-loose structure, belongs to the pump technical field.
Background technique
In pumping system, during the pump proper functioning, liquid in the priming reservoir is transported to extrudes the pond exactly, the priming reservoir is in low water level or low pressure area, extrudes the pond and is in high water level or zone of high pressure.Contain the pumping system that granule medium, fiber medium perhaps are prone to crystallization for conveying, in order to prevent obstruction or stuck, in the delivery side of pump pipeline, uneasy loaded check valve.But, can cause like this when pump is shut down, the liquid in the pump discharge pipeline will be back to the priming reservoir through the impeller of pump; During liquid return, impeller blades, the counterrotating of meeting impeller; For the pattern that impeller connects with main shaft periwinkle collecting line, impeller counterrotating meeting causes impeller to unscrew from main shaft, makes the impeller reach; Stuck on front shroud of impeller, impeller is damaged.Therefore,, need take certain measure, prevent that impeller unclamps from main shaft when the impeller counterrotating for this situation.
The simple and effective measure that prevents that impeller from unclamping is exactly: in the pumping system, shut down when pump, when liquid return is arranged, can guarantee that impeller rotates, and does not produce relative movement between main shaft.
Summary of the invention
What the present invention proposed is a kind of pump impeller counter-rotating locking gear, and its purpose is intended to overcome the above-mentioned defective of existing in prior technology, guarantees that impeller rotates between main shaft, impeller can not produced with main shaft move to axial the protection impeller.
Technical solution of the present invention: it is characterized in that comprising impeller, straight pin, axle sleeve, socket head screw, Upper shaft sleeve, main shaft, plane, connection screw thread, wherein impeller is spun on the main shaft through connecting screw thread, and impeller withstands axle sleeve; Axle sleeve withstands Upper shaft sleeve, moves axially thereby limited impeller, and impeller connects with axle sleeve through straight pin; Limited impeller and axle sleeve relatively moving in a circumferential direction; Thereby guaranteed that impeller and axle sleeve rotate synchronously, socket head screw is spun on the axle sleeve, and socket head screw withstands the plane on the main shaft; Limited axle sleeve and main shaft relatively moving in a circumferential direction, thereby guaranteed that axle sleeve and main shaft rotate synchronously.
Advantage of the present invention: limited axle sleeve and main shaft relatively moving in a circumferential direction, thereby guaranteed that axle sleeve and main shaft rotate synchronously, like this, through the transmission of axle sleeve; Limited impeller and main shaft relatively moving in a circumferential direction, guaranteed that impeller and main shaft rotate synchronously, like this; During liquid return, the counterrotating of withdrawing fluid impeller, impeller also can drive the main shaft counterrotating through axle sleeve; Impeller and main shaft can not produced relatively move, therefore, solved because of liquid return causes the impeller that the pump impeller counter-rotating is produced and become flexible phenomenon; Play the impeller anti-loose effect, thereby protected impeller, prolonged the working life of pump.The measure of being taked just cuts the plane on original main shaft, increase simple part such as pin and socket head screw again, just can play the impeller locking effect of reversing effectively.Method is extremely simple, convenient, reliable, and cost is extremely low.
Description of drawings
Accompanying drawing 1 is a pump impeller counter-rotating anti-loose structure longitudinal section tectonic maps.
Accompanying drawing 2 is A-A sectional drawings.
Among the figure 1 is impeller, the 2nd, straight pin, the 3rd, and axle sleeve, the 4th, socket head screw, the 5th, Upper shaft sleeve, the 6th, main shaft, the 7th, plane, the 8th connects screw thread.
Embodiment
Contrast accompanying drawing, its structure comprise impeller 1, straight pin 2, axle sleeve 3, socket head screw 4, Upper shaft sleeve 5, main shaft 6, plane 7, connect screw thread 8.Wherein impeller 1 is spun on the main shaft 6 through connecting screw thread 8, and impeller 1 withstands axle sleeve 3, and axle sleeve 3 withstands Upper shaft sleeve 5, moves axially thereby limited impeller 1; Impeller 1 connects with axle sleeve 3 through straight pin 2, has limited impeller 1 and axle sleeve 3 relatively moving in a circumferential direction, thereby has guaranteed that impeller 1 and axle sleeve 3 rotate synchronously; Socket head screw 4 is spun on the axle sleeve 3, withstand the plane 7 on the main shaft 6, has limited axle sleeve 3 and main shaft 6 relatively moving in a circumferential direction; Thereby guaranteed that axle sleeve 3 and main shaft 6 rotate synchronously, like this, through the transmission of axle sleeve 3; Limited impeller 1 and main shaft 6 relatively moving in a circumferential direction, guaranteed that impeller 1 and main shaft 6 rotate synchronously, like this; During liquid return, 1 counterrotating of withdrawing fluid impeller, impeller 1 also can drive main shaft 6 counterrotatings through axle sleeve 3; Impeller 1 and main shaft 6 can not produced relatively move, therefore, solved because of liquid return causes the impeller 1 that pump impeller 1 counter-rotating is produced and become flexible phenomenon; Play impeller 1 locking effect, thereby protected impeller 1, prolonged the working life of pump.
The above-mentioned measure of taking just on original main shaft 6 cutting come out to increase pin 2 and simple part such as socket head screw 4 grades again in plane 7, just can play the impeller locking effect of reversing effectively.Method is extremely simple, convenient, reliable, and cost is extremely low.
Claims (1)
1. a pump impeller counter-rotating locking gear is characterized in that comprising impeller, straight pin, axle sleeve, socket head screw, Upper shaft sleeve, main shaft, plane, connection screw thread, and wherein impeller is spun on the main shaft through connecting screw thread; Impeller withstands axle sleeve, and axle sleeve withstands Upper shaft sleeve, moves axially thereby limited impeller; Impeller connects with axle sleeve through straight pin, has limited impeller and axle sleeve relatively moving in a circumferential direction, thereby has guaranteed that impeller and axle sleeve rotate synchronously; Socket head screw is spun on the axle sleeve; Socket head screw withstands the plane on the main shaft, has limited axle sleeve and main shaft relatively moving in a circumferential direction, thereby has guaranteed that axle sleeve and main shaft rotate synchronously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104349520A CN102444613A (en) | 2011-12-22 | 2011-12-22 | Looseness-preventing mechanism in reversion of pump impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104349520A CN102444613A (en) | 2011-12-22 | 2011-12-22 | Looseness-preventing mechanism in reversion of pump impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102444613A true CN102444613A (en) | 2012-05-09 |
Family
ID=46007436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104349520A Pending CN102444613A (en) | 2011-12-22 | 2011-12-22 | Looseness-preventing mechanism in reversion of pump impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102444613A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3006741A1 (en) * | 2014-10-09 | 2016-04-13 | Ebara Corporation | Turbopump with shaft coupling |
| JP2016121673A (en) * | 2014-10-09 | 2016-07-07 | 株式会社荏原製作所 | Turbo pump |
| US10018205B2 (en) | 2012-11-28 | 2018-07-10 | Napier Turbochargers Limited | Impeller shaft |
| CN114562479A (en) * | 2022-03-01 | 2022-05-31 | 沈阳斯特机械制造有限公司 | Supercharger impeller made of titanium alloy material |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU584116A1 (en) * | 1976-01-12 | 1977-12-15 | Каунасский Ордена Знак Почета Станкостроительный Завод Им.Ф.Э.Дзержинского | Device for fitting and fastening sleeve-type parts on shaft |
| SU846822A1 (en) * | 1979-04-09 | 1981-07-15 | Предприятие П/Я Р-6378 | Part clamping connection |
| FR2510206A1 (en) * | 1981-07-27 | 1983-01-28 | Pfalzgraf Epb Sa Emile | DEVICE FOR LOCKING AND / OR CLAMPING MODULAR CONNECTIONS OF HEADS AND BORE BARS, PUMP CHUCKS, LONG-CLIPS, OR OTHER MECHANICAL PARTS |
| US4767233A (en) * | 1987-03-20 | 1988-08-30 | Dresser Industries, Inc. | Impeller mounting apparatus |
| CN2237133Y (en) * | 1995-03-18 | 1996-10-09 | 徐其国 | Direct connection single stage pump |
| CN2310185Y (en) * | 1997-09-17 | 1999-03-10 | 上海万成企业发展有限公司 | Corrosion-resistant pump |
| CN202468444U (en) * | 2011-12-22 | 2012-10-03 | 镇江正汉泵业有限公司 | Pump impeller reversing anti-loosing mechanism |
-
2011
- 2011-12-22 CN CN2011104349520A patent/CN102444613A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU584116A1 (en) * | 1976-01-12 | 1977-12-15 | Каунасский Ордена Знак Почета Станкостроительный Завод Им.Ф.Э.Дзержинского | Device for fitting and fastening sleeve-type parts on shaft |
| SU846822A1 (en) * | 1979-04-09 | 1981-07-15 | Предприятие П/Я Р-6378 | Part clamping connection |
| FR2510206A1 (en) * | 1981-07-27 | 1983-01-28 | Pfalzgraf Epb Sa Emile | DEVICE FOR LOCKING AND / OR CLAMPING MODULAR CONNECTIONS OF HEADS AND BORE BARS, PUMP CHUCKS, LONG-CLIPS, OR OTHER MECHANICAL PARTS |
| US4767233A (en) * | 1987-03-20 | 1988-08-30 | Dresser Industries, Inc. | Impeller mounting apparatus |
| CN2237133Y (en) * | 1995-03-18 | 1996-10-09 | 徐其国 | Direct connection single stage pump |
| CN2310185Y (en) * | 1997-09-17 | 1999-03-10 | 上海万成企业发展有限公司 | Corrosion-resistant pump |
| CN202468444U (en) * | 2011-12-22 | 2012-10-03 | 镇江正汉泵业有限公司 | Pump impeller reversing anti-loosing mechanism |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10018205B2 (en) | 2012-11-28 | 2018-07-10 | Napier Turbochargers Limited | Impeller shaft |
| EP3006741A1 (en) * | 2014-10-09 | 2016-04-13 | Ebara Corporation | Turbopump with shaft coupling |
| CN105508283A (en) * | 2014-10-09 | 2016-04-20 | 株式会社荏原制作所 | A turbopump |
| JP2016121673A (en) * | 2014-10-09 | 2016-07-07 | 株式会社荏原製作所 | Turbo pump |
| CN114562479A (en) * | 2022-03-01 | 2022-05-31 | 沈阳斯特机械制造有限公司 | Supercharger impeller made of titanium alloy material |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120509 |