CN85108139A - A kind of new structure of the rotor tip of large high-speed cage asynchronous motor - Google Patents
A kind of new structure of the rotor tip of large high-speed cage asynchronous motor Download PDFInfo
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- CN85108139A CN85108139A CN 85108139 CN85108139A CN85108139A CN 85108139 A CN85108139 A CN 85108139A CN 85108139 CN85108139 CN 85108139 CN 85108139 A CN85108139 A CN 85108139A CN 85108139 A CN85108139 A CN 85108139A
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- sliver
- rotor tip
- new structure
- ring
- rotor
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- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Induction Machinery (AREA)
Abstract
The invention belongs to a kind of new structure of the rotor tip of large high-speed cage asynchronous motor.Because the known rotor end construction is in operation the bar failure accident often takes place, directly influence finishing of production task, cause serious economy loss.New structure of the rotor tip of the present invention is to have done structural improvement at this a kind of shortcoming.The present invention extends general rotor tip sliver, and outer fix in the end ring is exchanged, and increases sliver and is connected sectional area with end ring, and the attenuate retaining ring is also directly protected sliver, forms rotor terminal structure.Actual proof new construction has guaranteed the long-time running that sliver is safe and reliable.
Description
The present invention is a kind of new structure of the rotor tip that is used to design or transform large high-speed cage asynchronous motor.Use for departments such as factory, mine, power plant, oil field and pipeline roads.
The known generally rotor terminal structure of the large high-speed cage asynchronous motor of operation is (referring to Big Motor Reserch Academy, Ha Erbin City's " big motor technology " in 1982 third phase " about the discussion of high-speed high capacity cage type asynchronous motor rotor end intensity " literary composition, 15 pages of Fig. 2), every sliver stretches out 34 millimeters places of rotor core, weld with single cross section dress with end ring, assembling prevents the bolt of axial motion behind the hot jacket retaining ring.This structure since sliver to stretch out rotor core length too short, the single cross section that is connected of sliver and end ring is too little, and retaining ring direct reason such as protection sliver not, makes structural design unreasonable, in service in the commissure generation up to 5000 kilograms per centimeter
2Rotor tip bar failure accident often takes place in above stress.Cause the direct economic loss of units up to a million for departments such as factory, mine, power plant, oil field and pipeline road, have influence on the finishing of the production schedule of these departments.
Task of the present invention is to improve at the shortcoming on the said structure, in order to eliminate rotor tip bar failure accident, the often requirement of starting or long-time running of large high-speed cage asynchronous motor is satisfied in design or transform a kind of new structure of the rotor tip that can guarantee safe operation.
The said new structure of the rotor tip of the present invention is illustrated in conjunction with the accompanying drawings.About increasing the elongation of rotor tip sliver, be that applicating modern times technology is reached a conclusion as calculated, with extension elongation by 34 millimeters lengthenings at 60 to 120 millimeters, according to the disconnected bar accident analysis of known large high-speed cage asynchronous motor, also confirmed the short more bar accident of breaking that is easy to generate more of sliver extension elongation.Known end ring rigging position is designed to the assembling that interior outer fix is exchanged, so as to adapting to the needs after sliver extends.Every sliver is connected with end ring by the dress weldering of single cross section and is designed to two dress weldering cross sections in length and breadth, has reduced nearly one times of the stress of critical section.The said new structure of the rotor tip of the present invention, retaining ring are the calculating with modern technologies, and the monolateral effective thickness of retaining ring is thinned to 10 to 20 millimeters.Retaining ring belongs to non magnetic rare metal, and the attenuate retaining ring can reduce motor cost.The said new structure of the rotor tip of the present invention, retaining ring is designed to directly protect sliver.
The new structure of the rotor tip that the present invention is illustrated, sliver are to make with the red copper that draws moulding, and end ring is to use the red copper forging molding, and retaining ring is to make with the non-magnetic high strength alloy steel.The present invention is the new construction that is used to design or transform rotor tip, have rational in infrastructure, make simple, mounting or dismounting are convenient, low cost and other advantages, and can guarantee the long-term safety operation.
The new structure of the rotor tip of the said large high-speed cage asynchronous motor of the present invention is applicable to 1000 kilowatts to 8000 kilowatts scopes.
Accompanying drawing is a new structure of the rotor tip embodiment of the present invention.
Description of drawings:
1. rotor core; 2. pressing plate; 3. sliver; 4. retaining ring; 5. end ring; 6. baffle ring; 7. bolt
Claims (2)
1, a kind of new structure of the rotor tip that is used to design or transform large high-speed cage asynchronous motor.Have: rotor core [1], pressing plate [2], sliver [3], end ring [5] and the retaining ring [4], baffle ring [6], the bolt [7] that are used for fixing, protect sliver or end ring.Sliver is by end ring short circuit in addition.Feature of the present invention is:
The elongation of rotor tip sliver is at 60 to 120 millimeters; Outer fix is exchanged in the end ring; Two dresses weld cross sections to every sliver with having being connected of end ring in length and breadth; The monolateral effective thickness of retaining ring is thinned to 10 to 20 millimeters; Retaining ring is directly protected sliver, has formed new structure of the rotor tip.
2, a kind of according to the said new structure of the rotor tip of claim 1., it is characterized in that said sliver is to make with the red copper that draws moulding, end ring is to use the red copper forging molding, and retaining ring is made with non magnetic high strength alloy steel, and baffle ring, bolt steel material are made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85108139 CN85108139A (en) | 1985-10-31 | 1985-10-31 | A kind of new structure of the rotor tip of large high-speed cage asynchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85108139 CN85108139A (en) | 1985-10-31 | 1985-10-31 | A kind of new structure of the rotor tip of large high-speed cage asynchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN85108139A true CN85108139A (en) | 1986-09-10 |
Family
ID=4795918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 85108139 Pending CN85108139A (en) | 1985-10-31 | 1985-10-31 | A kind of new structure of the rotor tip of large high-speed cage asynchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN85108139A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1107369C (en) * | 1995-06-14 | 2003-04-30 | 戴姆勒格蕾斯勒铁路系统有限公司 | Cage rotor for asynchronous motor |
| CN101557149B (en) * | 2008-04-10 | 2011-09-07 | 何君 | Rotor structure of high-speed induction motor |
| CN107040062A (en) * | 2017-05-26 | 2017-08-11 | 哈尔滨电气动力装备有限公司 | Canned motor pump motor rotor retaining ring structure |
| CN109510419A (en) * | 2018-11-20 | 2019-03-22 | 卧龙电气集团股份有限公司 | A high-speed motor rotor |
-
1985
- 1985-10-31 CN CN 85108139 patent/CN85108139A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1107369C (en) * | 1995-06-14 | 2003-04-30 | 戴姆勒格蕾斯勒铁路系统有限公司 | Cage rotor for asynchronous motor |
| CN101557149B (en) * | 2008-04-10 | 2011-09-07 | 何君 | Rotor structure of high-speed induction motor |
| CN107040062A (en) * | 2017-05-26 | 2017-08-11 | 哈尔滨电气动力装备有限公司 | Canned motor pump motor rotor retaining ring structure |
| CN109510419A (en) * | 2018-11-20 | 2019-03-22 | 卧龙电气集团股份有限公司 | A high-speed motor rotor |
| CN109510419B (en) * | 2018-11-20 | 2024-03-29 | 浙江卧龙精密动力系统有限公司 | High-speed motor rotor |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |