CN104393695A - Water filling type submersible motor with improved stator iron core pressing rings - Google Patents
Water filling type submersible motor with improved stator iron core pressing rings Download PDFInfo
- Publication number
- CN104393695A CN104393695A CN201410671687.1A CN201410671687A CN104393695A CN 104393695 A CN104393695 A CN 104393695A CN 201410671687 A CN201410671687 A CN 201410671687A CN 104393695 A CN104393695 A CN 104393695A
- Authority
- CN
- China
- Prior art keywords
- stator
- pressing ring
- groove
- type submersible
- water filling
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/42—Means for preventing or reducing eddy-current losses in the winding heads, e.g. by shielding
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
Abstract
The invention relates to a water filling type submersible motor with improved stator iron core pressing rings. The water filling type submersible motor comprises a casing, a stator, a rotor and a rotating shaft; the stator is fixed on the casing; the rotor is fixed on the rotating shaft; the stator pressing rings are arranged at two axial ends of a stator iron core respectively; an end winding is arranged in the casing portion located at the outer side of each end of stator pressing ring; the outer circumference of each stator pressing ring is a yoke portion and the inner circumference of each stator pressing ring is a tooth portion; a groove formed between every two adjacent teeth of each tooth portion is a tooth groove, wherein the groove depth of every tooth groove is h, the groove width is 2 R, and R is the radius of the groove bottom. The water filling type submersible motor is characterized in that the lateral side of each tooth portion of the corresponding stator pressing ring which is located at the side adjacent to the corresponding end winding is an inclined plane which is inclined towards the center of the circle. According to the water filling type submersible motor with the improved stator iron core pressing rings, the stator pressing ring structure that the pressing ring tooth plane is inclined towards the inner side is adopted and accordingly the pressing ring stress can be improved, pressing ring materials can be saved, and the eddy current loss produced by the end leakage magnetic field in the stator pressing rings is reduced.
Description
Technical field
The invention belongs to submersible motor technical field, be specifically related to a kind of Water-filled Type Submersible Motors with improvement stator core trim ring.
Background technology
Water-filled Type Submersible Motors is applied in the Important Project such as mine drainage, city prevention waterlogging mostly, inner chamber due to Water-filled Type Submersible Motors is full of this unique running environment of cooling water, the water frictional dissipation of Water-filled Type Submersible Motors is larger, in addition, fastening indeformable for ensureing the stator core of Water-filled Type Submersible Motors, usually certain thickness ring pressing construction is adopted to reinforce at the stator core two ends of submersible motor, in order to technique is convenient in engineering reality, stator pressing ring is relatively simple for structure, trim ring inner plane is parallel with trim ring outerplanar, as shown in Figure 6.The distribution of Water-filled Type Submersible Motors End winding is very complicated, and the axial component of the motor end stray field produced by Stator End Winding is comparatively large, produces eddy current, and then produce eddy current loss at stator pressing ring surface induction; In addition, because Water-filled Type Submersible Motors inner chamber is full of cooling water medium, when motor normally runs, the cooling water circulation flowing in inner chamber, in stator pressing ring mantle friction and then the frictional dissipation of generation water; Two end faces in addition due to traditional trim ring are parallel, cause the waste of trim ring material to a certain extent.Along with the power of Water-filled Type Submersible Motors constantly increases, energy-conservation of consumption reduction is the direction that submersible motor developer makes great efforts always.
Summary of the invention
In order to reduce the vertical component of brow leakage field on trim ring surface, thus realizing reducing the eddy current loss of brow leakage field in the generation of trim ring surface, the invention provides a kind of Water-filled Type Submersible Motors improving stator core trim ring.
Concrete improvement opportunity scheme is as follows:
The Water-filled Type Submersible Motors improving stator core trim ring comprises casing, stator, rotor and rotating shaft, and described stator is fixed on casing, and rotor is fixed in rotating shaft, and the axial two ends of stator are respectively equipped with stator pressing ring; End winding is respectively equipped with in casing outside the stator pressing ring of two ends; The excircle of described stator pressing ring is yoke portion, and inner periphery is teeth portion, and the groove between teeth portion adjacent teeth is teeth groove, and the groove depth of described teeth groove is h, and groove width is 2R, and wherein R is the radius of bottom land; Improvement is: the side of the teeth portion of the stator pressing ring of side adjacent with End winding is the inclined-plane tilted to the center of circle.
The inclined angle alpha on described inclined-plane meets tan α≤a/ (h-R), and wherein tan α is α tangent of an angle value, and a is stator pressing ring thickness.
Compared with prior art, the present invention has following Advantageous Effects:
1, the present invention adopts the stator pressing ring structure that trim ring teeth portion plane tilts to the inside, change the rigidity of trim ring, and then improve the stress distribution of trim ring, thus improve stressed globality and the bearing capacity of trim ring, strengthen the overall durability energy of trim ring, and save trim ring material;
2, the present invention adopts the stator pressing ring structure that trim ring teeth portion plane tilts to the inside, change the vertical component of motor end stray field on trim ring surface produced by Stator End Winding, and then reduce the eddy current of stator pressing ring surface induction generation, thus reduce the eddy current loss of stator pressing ring;
3, the present invention adopts the stator pressing ring structure that trim ring teeth portion plane tilts to the inside, and inside trim ring teeth portion outerplanar, adopt radius to be the protruding arc-shaped structure of r, coefficient of friction can be reduced and improve runner, and then reducing the frictional dissipation by the cooling water medium generation of flowing in motor.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the partial enlarged drawing of Fig. 1.
Fig. 3 is stator pressing ring structural representation.
Fig. 4 is the stator pressing ring teeth portion enlarged drawing of Fig. 3.
Fig. 5 is stator pressing ring teeth portion radially cutaway view Amplified image.
Fig. 6 is Fig. 1 Central Plains structure partial enlarged drawing.
Number in the figure: 1 casing, 2 stators, 3 rotors, 4 stator pressing rings, 5 End winding, 6 rotating shafts, 41 yoke portions, 42 teeth portion.
Embodiment
Below in conjunction with accompanying drawing, by embodiment, the present invention is further described.
Embodiment 1
With mining INCREASEDSAFETY submersible pump motor YBQ2800/4-S (10000) Water-filled Type Submersible Motors for embodiment, the relevant parameter of Water-filled Type Submersible Motors is as follows: stator core external diameter is 850mm, stator core internal diameter is 462mm, stator core length is 1550mm, and number of stator slots is 60.
See Fig. 1 and Fig. 2, the Water-filled Type Submersible Motors improving stator core trim ring comprises casing 1, stator 2, rotor 3 and rotating shaft 6, and stator 2 is fixed in casing 1, and rotor 3 is fixed in rotating shaft 6, stator core axial two ends be installed with stator pressing ring 4 respectively; End winding 5 is respectively equipped with in the casing in stator pressure 4 circle outside, two ends.See Fig. 3 and Fig. 4, the excircle of stator pressing ring is yoke portion 41, and inner periphery is teeth portion 42, and the groove between the adjacent teeth of teeth portion 42 is teeth groove, and the groove depth of teeth groove is h, and groove width is 2R, and wherein R is the radius of bottom land.The grooved of stator pressing ring is parallel slot, and the number of teeth of teeth portion is 60, and is along the circumferential direction uniformly distributed; The groove depth h of teeth groove is 135.2mm, groove width 2R is 15.4mm, and bottom land is radius R is the semicircle of 7.7mm.See Fig. 5, thickness (trim ring inner plane and the stator core end face distance) a of stator pressing ring is 25mm.
The side of the teeth portion of the stator pressing ring 4 of side adjacent with End winding 5 is the inclined-plane tilted to the center of circle, and the inclined angle alpha on inclined-plane is 3 °.Inclined angle alpha meets tan α≤a/ (h-R), and wherein tan α is α tangent of an angle value, and a is the thickness of stator pressing ring.
Embodiment 2
With mining INCREASEDSAFETY submersible pump motor YBQ2800/4-S (10000) Water-filled Type Submersible Motors for embodiment, the relevant parameter of Water-filled Type Submersible Motors is as follows: stator core external diameter is 850mm, stator core internal diameter is 462mm, stator core length is 1550mm, and number of stator slots is 60;
The thickness a of stator pressing ring is 25mm, and the grooved of stator pressing ring 4 is parallel slot, and the number of teeth of teeth portion 42 is 60, and is along the circumferential direction uniformly distributed; The groove depth h of teeth groove is 135.2mm, groove width 2R is 15.4mm, and bottom land is radius R is the semicircle of 7.7mm; The side of the teeth portion of the stator pressing ring of side adjacent with End winding 5 is the inclined-plane tilted to the center of circle, and the inclined angle alpha on inclined-plane is 6 °.
The other the same as in Example 1.
Claims (2)
1. improve the Water-filled Type Submersible Motors of stator core trim ring, comprise casing, stator, rotor and rotating shaft, described stator is fixed on casing, and rotor is fixed in rotating shaft, and the axial two ends of stator core are respectively equipped with stator pressing ring; End winding is respectively equipped with in casing outside the stator pressing ring of two ends; The excircle of described stator pressing ring is yoke portion, and inner periphery is teeth portion, and the groove between teeth portion adjacent teeth is teeth groove, and the groove depth of described teeth groove is h, and groove width is 2R, and wherein R is the radius of bottom land; It is characterized in that: the side of the teeth portion of the stator pressing ring of side adjacent with End winding is the inclined-plane tilted to the center of circle.
2. the Water-filled Type Submersible Motors of improvement stator core trim ring according to claim 1, is characterized in that: the inclined angle alpha on described inclined-plane is 3 ° ~ 6 °; Meet tan α≤a/ (h-R), wherein tan α is α tangent of an angle value, and a is stator pressing ring thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410671687.1A CN104393695A (en) | 2014-11-21 | 2014-11-21 | Water filling type submersible motor with improved stator iron core pressing rings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410671687.1A CN104393695A (en) | 2014-11-21 | 2014-11-21 | Water filling type submersible motor with improved stator iron core pressing rings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104393695A true CN104393695A (en) | 2015-03-04 |
Family
ID=52611548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410671687.1A Pending CN104393695A (en) | 2014-11-21 | 2014-11-21 | Water filling type submersible motor with improved stator iron core pressing rings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104393695A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5746651A (en) * | 1980-09-01 | 1982-03-17 | Hitachi Ltd | Manufacture of stator iron core for motor |
| CN101034819A (en) * | 2006-01-24 | 2007-09-12 | 阿尔斯通技术有限公司 | Rotating electrical machine |
| CN202042959U (en) * | 2011-05-13 | 2011-11-16 | 哈尔滨理工大学 | Comb-type stator pressure plate |
| CN202282708U (en) * | 2011-10-26 | 2012-06-20 | 中电电机股份有限公司 | Stator core structure of synchronous AC motor |
| CN202309390U (en) * | 2011-10-31 | 2012-07-04 | 上海电气电站设备有限公司 | Magnetic shielding structure of million-class nuclear power turbogenerator stator end |
| CN204216682U (en) * | 2014-11-21 | 2015-03-18 | 合肥恒大江海泵业股份有限公司 | Improve the Water-filled Type Submersible Motors of stator core trim ring |
-
2014
- 2014-11-21 CN CN201410671687.1A patent/CN104393695A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5746651A (en) * | 1980-09-01 | 1982-03-17 | Hitachi Ltd | Manufacture of stator iron core for motor |
| CN101034819A (en) * | 2006-01-24 | 2007-09-12 | 阿尔斯通技术有限公司 | Rotating electrical machine |
| CN202042959U (en) * | 2011-05-13 | 2011-11-16 | 哈尔滨理工大学 | Comb-type stator pressure plate |
| CN202282708U (en) * | 2011-10-26 | 2012-06-20 | 中电电机股份有限公司 | Stator core structure of synchronous AC motor |
| CN202309390U (en) * | 2011-10-31 | 2012-07-04 | 上海电气电站设备有限公司 | Magnetic shielding structure of million-class nuclear power turbogenerator stator end |
| CN204216682U (en) * | 2014-11-21 | 2015-03-18 | 合肥恒大江海泵业股份有限公司 | Improve the Water-filled Type Submersible Motors of stator core trim ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150304 |
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| RJ01 | Rejection of invention patent application after publication |