CN103580404B - A kind of rotor treatment process reducing ultra-high efficient motor stray loss - Google Patents
A kind of rotor treatment process reducing ultra-high efficient motor stray loss Download PDFInfo
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- CN103580404B CN103580404B CN201210250845.7A CN201210250845A CN103580404B CN 103580404 B CN103580404 B CN 103580404B CN 201210250845 A CN201210250845 A CN 201210250845A CN 103580404 B CN103580404 B CN 103580404B
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Abstract
Reduce a rotor treatment process for ultra-high efficient motor stray loss, it is characterized in that comprising the following steps: pre-heating on the fixed support 1), by rotor complete for finish turning being placed in acetylene, oxygen multi-hole kitchen range, surface temperature is at 160-200 DEG C; 2), successively burn the speed of silicon steel sheet position along direction by 10mm/s between the every two aluminium slivers of whole rotor outer surface, flame controls based on light blue, and temperature reaches 420-480 DEG C; 3), after whole rotor burns, hang in the emulsion casing under normal temperature and cool 10S clock; 4), by rotor hang out from emulsion casing, naturally dry up.The present invention, when low material cost, reaches motor ultra high efficiency standard-required, has saved the energy, protected environment.
Description
technical field:
The present invention relates to a kind of rotor treatment process reducing ultra-high efficient motor stray loss.
background technology:
The efficiency of three-phase AC asynchronous motor is the ratio of power output and input power, and input power is less, and the efficiency of motor is higher.The difference of input power and power output is the total losses of motor, comprising: the wind friction loss of stator copper loss, rotor aluminum consumption, the iron loss of silicon steel sheet, mechanical friction and fan cooled combination, the supplementary load loss caused because of many uncertain factors such as technological fluctuations are referred to as stray loss.Can be obtained by theory calculate and detection for front four lossies, when the fifth-largest loss wherein makes for same designing technique and same material, because technological parameter is different and the difference of technological measure and produce different numerical value, affect the value of total losses, the final height determining efficiency.According to statistics; China in 2002 motor power consumption accounts for more than 60% of national power consumption; its middle-size and small-size three asynchronous machine power consumptions account for 35%; power consumption rich and influential family; so developing Chinese high-efficiency electric motor is improve energy utilization rate; one of important measures of protection of the environment, meet the needs of China's development, are very important.
summary of the invention:
The object of this invention is to provide a kind of rotor treatment process reducing ultra-high efficient motor stray loss; electric efficiency is improved by reducing the stray loss relevant with the fluctuation of manufacturing process; motor is made to be issued to motor ultra high efficiency standard-required in the situation of low material cost; for energy savings, protection of the environment.
The present invention is achieved in that a kind of rotor treatment process reducing ultra-high efficient motor stray loss, it is characterized in that comprising the following steps:
1) pre-heating on the fixed support, by rotor complete for finish turning being placed in acetylene, oxygen multi-hole kitchen range, surface temperature is at 160-200 DEG C;
2), successively burn the speed of silicon steel sheet position along direction by 10mm/s between the every two aluminium slivers of whole rotor outer surface, flame controls based on light blue, and temperature reaches 420-480 DEG C;
3), after whole rotor burns, hang in the emulsion casing under normal temperature and cool 10S clock;
4), by rotor hang out from emulsion casing, naturally dry up.
The present invention, when low material cost, reaches motor ultra high efficiency standard-required, has saved the energy, protected environment.
Accompanying drawing illustrates:
Fig. 1 is rotor structural representation of the present invention.
In figure 1, electric machine main shaft, 2, rotor outer surface silicon steel sheet, 3, rotor outer surface aluminium sliver.
Embodiment:
Reduce a rotor treatment process for ultra-high efficient motor stray loss, it is characterized in that comprising the following steps:
1), rotor complete for finish turning is placed on the fixed support of acetylene, oxygen multi-hole kitchen range, the below of rotor has the metal tube of the exotic material of a diameter 15mm parallel with the axis of rotor, one side near rotor on metal tube is drilled with by certain spacing the aperture that diameter is 8mm, with wire-mesh screen in aperture, pass into the mist of oxygen and acetylene in pipe and light, carry out pre-heating, surface temperature is at 160-200 DEG C;
2), successively burn the speed of silicon steel sheet position along direction by 10mm/s between the every two aluminium slivers of whole rotor outer surface, flame controls based on light blue, and temperature reaches 420-480 DEG C;
3), after whole rotor burns, hang in the emulsion casing under normal temperature and cool 10S clock;
4), by rotor hang out from emulsion casing, naturally dry up.
During concrete enforcement, the rotor of three-phase AC asynchronous motor is complete at die casting aluminium, is reached the air gap value of regulation by size, because rotor punching is silicon steel sheet, its density is 7.65-7.8kg/dm3; The exposed slot opening at outer round surface of rotor is 1-1.5mm is the sliver being full of fine aluminium, and its density is 2.7kg/dm3.In turning process, the rotor outer circle surface cut that lathe tool forms with silicon steel and fine aluminium, makes the surface of the inconsistent composition of soft or hard material produce uneven stress, especially the composition surface of rotor port part, while be the fine aluminium of die casting, be silicon steel material, concentrate larger stress.If this stress does not give release and will bring very large uncertain stray loss to motor.Have passed through verification experimental verification repeatedly, finally take after finish turning, the technological measure burnt the surface of rotor is to eliminate this stress.Proved by testing inspection: if originally the underproof motor of efficiency take rotor surface burn and chilling after on reduce motor stray loss impact larger, stray loss reduces 53%, the stray loss reduction of motor reaches more than 35% of power output, the efficiency index of ultra-high efficient motor is made to rise 0.87%, electric efficiency reaches 93.11%, exceed desired value 93%, and domestic middle-size and small-size motor average efficiency 87%, international most advanced level is 92%.This is the high efficiency electric of China by penetration and promotion, encourages the design of Ultra-High Efficiency motor, manufacture, application, for raising electric efficiency, saves energy, protection of the environment are laid a good foundation.
Claims (1)
1. one kind is reduced the rotor treatment process of ultra-high efficient motor stray loss, it is characterized in that: described rotor is the rotor of three-phase AC asynchronous motor, and it is complete at die casting aluminium, reached the air gap value of regulation by size, described rotor punching is silicon steel sheet, and its density is 7.65-7.8kg/dm
3, the exposed slot opening at outer round surface of described rotor is 1-1.5mm, is full of the sliver of fine aluminium in notch, and its density is 2.7kg/dm
3, in turning process, the rotor outer circle surface cut that lathe tool forms with silicon steel and fine aluminium, make the surface of the inconsistent composition of soft or hard material produce uneven stress, described rotor treatment process comprises the following steps:
1) pre-heating on the fixed support, by rotor complete for finish turning being placed in acetylene, oxygen multi-hole kitchen range, surface temperature is at 160-200 DEG C;
2), successively burn the speed of silicon steel sheet position along direction by 10mm/s between the every two aluminium slivers of whole rotor outer surface, flame controls based on light blue, and temperature reaches 420-480 DEG C;
3), after whole rotor burns, hang in the emulsion casing under normal temperature and cooled for 10 seconds;
4), by rotor hang out from emulsion casing, naturally dry up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210250845.7A CN103580404B (en) | 2012-07-19 | 2012-07-19 | A kind of rotor treatment process reducing ultra-high efficient motor stray loss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210250845.7A CN103580404B (en) | 2012-07-19 | 2012-07-19 | A kind of rotor treatment process reducing ultra-high efficient motor stray loss |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103580404A CN103580404A (en) | 2014-02-12 |
| CN103580404B true CN103580404B (en) | 2016-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210250845.7A Active CN103580404B (en) | 2012-07-19 | 2012-07-19 | A kind of rotor treatment process reducing ultra-high efficient motor stray loss |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6373788B2 (en) * | 2015-03-31 | 2018-08-15 | 株式会社日立産機システム | Rotating electrical machine and method for manufacturing the rotor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101841216A (en) * | 2010-05-21 | 2010-09-22 | 哈尔滨东安发动机（集团）有限公司 | Heating method of motor rotor |
| CN102355098A (en) * | 2011-10-12 | 2012-02-15 | 文登奥文电机有限公司 | High-frequency cast aluminium rotor surface treatment process |
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2012
- 2012-07-19 CN CN201210250845.7A patent/CN103580404B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101841216A (en) * | 2010-05-21 | 2010-09-22 | 哈尔滨东安发动机（集团）有限公司 | Heating method of motor rotor |
| CN102355098A (en) * | 2011-10-12 | 2012-02-15 | 文登奥文电机有限公司 | High-frequency cast aluminium rotor surface treatment process |
Non-Patent Citations (1)
| Title |
|---|
| 转子热处理工艺的探讨;刘春成等;《大型铸锻件》;19980215(第01期);第1-10页 * |
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