CN108054843B - A kind of bulb through-flow electricity generator stator stand structure - Google Patents
A kind of bulb through-flow electricity generator stator stand structure Download PDFInfo
- Publication number
- CN108054843B CN108054843B CN201711474286.7A CN201711474286A CN108054843B CN 108054843 B CN108054843 B CN 108054843B CN 201711474286 A CN201711474286 A CN 201711474286A CN 108054843 B CN108054843 B CN 108054843B
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- China
- Prior art keywords
- section
- stretching out
- bracket
- tray
- ring flat
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- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention discloses a kind of bulb through-flow electricity generator stator stand structures, bracket including arrangement radially even in base wall, the bracket is radially provided with section of stretching out to base center position, there are spacing between the axial ends and base flange of the section of stretching out, the section of stretching out is tilted to the opposite direction in unit direction of rotation, multiple ring flat-plates are fixedly connected in the section of stretching out, the multiple ring flat-plate is arranged along axial spacing, tray is provided on the ring flat-plate, the tray and positioning bar cooperate, when stator-core lamination, not preset clearance between the positioning bar and tray.The present invention by using radially-arranged bracket section of stretching out, the radial force generated from iron core thermal expansion being subject to when base is run, it is converted into tangential force, make not having to preset clearance between the tray of base and positioning bar, while not influencing stator core radial thermal expansion, enhance the joint rigidity of iron core and base, reduces iron coring vibration, while simplifying iron core laminating technology.
Description
Technical field
The invention belongs to bulb through-flow technical field of generators, in particular to a kind of bulb through-flow electricity generator stator stand knot
Structure.
Background technique
As shown in Figure 1,2 and 3, existing bulb through-flow electricity generator stator stand structure is usually to weld V-type on base wall 1
Muscle 9, welds the ring flat-plate 5 disconnected mutually on the V-type muscle 9, mutually indepedent between each section of ring flat-plate, and tray 6 passes through segmentation ring flat-plate 5
Machined surface 10 be fixed on segmentation ring flat-plate 5, such base needs to meet the requirement of the thermal expansion of stator core 8 fixed
When sub- 8 lamination of iron core, certain gap delta is reserved between positioning bar 7 and tray 6, and through-flow machine base and iron core are thin, individually
Rigidity it is all weaker, certain influence can all be generated to the circularity of the overall stiffness of stator and iron core in this way, and make iron core
Lamination process complicates.
Summary of the invention
It is an object of the invention to: in view of the above problems, stator core radial direction can not influenced by providing one kind
While thermal expansion, enhance the joint rigidity of iron core and base, reduces iron coring vibration, while simplifying the light bulb of iron core laminating technology
Cross-flow generator stator stand structure.
The technical scheme of the present invention is realized as follows: a kind of bulb through-flow electricity generator stator stand structure, is included in machine
The bracket of radially even arrangement, the axial ends of the bracket are fixedly connected with base flange in seat wall, it is characterised in that: institute
State bracket and base center position be radially provided with section of stretching out, between the axial ends and base flange of the section of stretching out there are
Spacing, the section of stretching out are tilted to the opposite direction in unit direction of rotation, and multiple ring flat-plates are fixedly connected in the section of stretching out,
The multiple ring flat-plate is arranged along axial spacing, and tray is provided on the ring flat-plate, and the tray and positioning bar cooperate, stator iron
When heart lamination, not preset clearance between the positioning bar and tray.
Bulb through-flow electricity generator stator stand structure of the present invention, the bracket press certain angle by mainboard and subplate
Degree group is welded, and entirety is in y type, is fixedly connected on the inside of the head of y type bracket and base wall, tail portion is formed radially to machine
The section of stretching out that seat center extends, the axial ends of the y type bracket are fixedly connected with base flange, the section of stretching out that tail portion is formed
Both ends are not connected to base flange.
Bulb through-flow electricity generator stator stand structure of the present invention, the ring flat-plate use segmentation structure and bracket
Section of stretching out be fixedly connected, or slot in the section of stretching out of the bracket, the ring flat-plate by the fluting in section of stretching out across,
And it is fixedly connected with the section of stretching out of bracket.
Bulb through-flow electricity generator stator stand structure of the present invention, the tray are directly fixedly connected on ring flat-plate
On, one end of the positioning bar is arranged in the dovetail slot opened up on tray, and the dovetail trench bottom of positioning bar end face and tray
End face fits closely, and the other end of the positioning bar is arranged in the mounting groove of stator core.
Bulb through-flow electricity generator stator stand structure of the present invention, the radial thermal expansion power of the stator core according to
The section of stretching out stress of the secondary section of stretching out that bracket is transferred to by positioning bar, tray and ring flat-plate, the bracket generates torsional deflection, will
The radial force generated from stator core thermal expansion is converted into tangential force.
The present invention requires to guarantee that unit had not only met iron core thermal expansion, but also can have enough stator stiffnesses, using radial direction
The section of stretching out of the bracket of distribution, the radial force generated from iron core thermal expansion being subject to when base is run, is converted into tangential force,
The section of stretching out of bracket generates torsional deflection, to make not having to preset clearance, iron core and base between the tray of base and positioning bar
Injurious deformation will not be all generated, which can integrate the finite stiffness of base and be applied on iron core, not influence stator iron
While heart radial thermal expansion, and it is able to satisfy unit and normally runs and rigid requirements needed for various accident conditions stators.
Detailed description of the invention
Fig. 1 is existing bulb through-flow electricity generator stator stand structural schematic diagram.
Fig. 2 is A-A cross-sectional view in Fig. 1.
Fig. 3 is the portion B enlarged drawing in Fig. 1.
Fig. 4 is structural schematic diagram of the invention.
Fig. 5 is C-C cross-sectional view in Fig. 4.
Fig. 6 is the portion D enlarged drawing in Fig. 4.
Marked in the figure: 1 is base wall, 2 be bracket, and 2a is mainboard, and 2b is subplate, and 3 be base flange, and 4 be section of stretching out, 5
It is tray for ring flat-plate, 6,7 be positioning bar, and 8 be stator core, and 9 be V-type muscle, and 10 be the machined surface of the ring flat-plate disconnected.
Specific embodiment
With reference to the accompanying drawing, the present invention is described in detail.
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
As shown in Fig. 4,5 and 6, a kind of bulb through-flow electricity generator stator stand structure, including in base wall 1 radially
The axial ends of the bracket 2 of even arrangement, the bracket 2 is fixedly connected with base flange 3, and the bracket 2 is radially into base
Heart direction is provided with section of stretching out 4, and there are spacing, the section of stretching out 4 between the axial ends and base flange 3 of the section of stretching out 4
The direction opposite to unit direction of rotation tilts, and multiple ring flat-plates 5, the multiple ring flat-plate 5 are fixedly connected in the section of stretching out 4
It is arranged along axial spacing, it is axial to arrange that ring flat-plate quantity is determined by the arrangement requirement of positioning bar, tray is provided on the ring flat-plate 5
6, the tray 6 cooperates with positioning bar 7, when 8 lamination of stator core, not preset clearance between the positioning bar 7 and tray 6.
In the present embodiment, the bracket 2 is welded by mainboard 2a and subplate 2b by certain angle group, and entirety is in y type,
It is fixedly connected on the inside of the head of y type bracket and base wall 1, tail portion forms the section of stretching out 4 radially extended to base center, institute
The axial ends for stating y type bracket is fixedly connected with base flange 3, and 4 both ends of section of stretching out that tail portion is formed do not connect with base flange 3
Connect, the ring flat-plate 5 is fixedly connected using segmentation structure with the section of stretching out 4 of bracket 2, that is, the ring flat-plate both ends being segmented respectively with it is adjacent
The section of stretching out 4 of bracket 2 links together, therefore there are still power to transmit between the adjacent ring flat-plate of segmental structure, and in the prior art
The ring-plane structure of disconnection and effect are entirely different；Or slot in the section of stretching out 4 of the bracket 2, the ring flat-plate 5 is by section of stretching out
Across and being fixedly connected with the section of stretching out of bracket 24, in structure design, the ring flat-plate is whole circle, in ring at fluting on 4
Plate at tray cooperation do not have to process it is levelling.
Wherein, the tray 6 is directly fixedly connected on ring flat-plate 5, and one end setting of the positioning bar 7 is opened on tray 6
If dovetail slot in, and 7 end face of positioning bar and the dovetail slot bottom end face of tray 6 fit closely, the other end of the positioning bar 7
It is arranged in the mounting groove of stator core 8.The radial thermal expansion power of the stator core 8 passes sequentially through positioning bar 7,6 and of tray
Ring flat-plate 5 is transferred to the section of stretching out 4 of bracket 2, and 4 stress of section of stretching out of the bracket 2 generates torsional deflection, will come from stator core 8
The radial force that thermal expansion generates is converted into tangential force.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (4)
1. a kind of bulb through-flow electricity generator stator stand structure includes the bracket of radially even arrangement in base wall (1)
(2), the axial ends of the bracket (2) is fixedly connected with base flange (3), it is characterised in that: the bracket (2) radially to
Base center position is provided with section of stretching out (4), there are spacing between the axial ends and base flange (3) of the section of stretching out (4),
The section of stretching out (4) tilts to the opposite direction in unit direction of rotation, is fixedly connected with multiple ring flat-plates on the section of stretching out (4)
(5), the multiple ring flat-plate (5) along axial spacing arrange, be provided on the ring flat-plate (5) tray (6), the tray (6) with
Positioning bar (7) cooperation, when stator core (8) lamination, not preset clearance between the positioning bar (7) and tray (6) is described fixed
The radial thermal expansion power of sub- iron core (8) passes sequentially through the stretching that positioning bar (7), tray (6) and ring flat-plate (5) are transferred to bracket (2)
Section of stretching out (4) stress of section (4), the bracket (2) generates torsional deflection, will be from the diameter that stator core (8) thermal expansion generates
Tangential force is converted into power.
2. bulb through-flow electricity generator stator stand structure according to claim 1, it is characterised in that: the bracket (2) by
Mainboard (2a) and subplate (2b) are welded by certain angle group, and entirety is in y type, the head of y type bracket and base wall (1) inside
It is fixedly connected, tail portion forms the section of stretching out (4) radially extended to base center, the axial ends and machine of the y type bracket
Seat flange (3) is fixedly connected, and section of stretching out (4) both ends that tail portion is formed are not connected to base flange (3).
3. bulb through-flow electricity generator stator stand structure according to claim 1, it is characterised in that: the ring flat-plate (5) is adopted
It is fixedly connected with segmentation structure with the section of stretching out (4) of bracket (2), or slotted in the section of stretching out (4) of the bracket (2),
The ring flat-plate (5) is by the fluting on section of stretching out (4) across and being fixedly connected with the section of stretching out (4) of bracket (2).
4. bulb through-flow electricity generator stator stand structure according to claim 1, it is characterised in that: the tray (6) is straight
It connects and is fixedly connected on ring flat-plate (5), in the dovetail slot that one end setting of the positioning bar (7) opens up on tray (6), and position
Muscle (7) end face and the dovetail slot bottom end face of tray (6) fit closely, and the other end of the positioning bar (7) is arranged in stator iron
In the mounting groove of the heart (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711474286.7A CN108054843B (en) | 2017-12-29 | 2017-12-29 | A kind of bulb through-flow electricity generator stator stand structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711474286.7A CN108054843B (en) | 2017-12-29 | 2017-12-29 | A kind of bulb through-flow electricity generator stator stand structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108054843A CN108054843A (en) | 2018-05-18 |
| CN108054843B true CN108054843B (en) | 2018-12-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711474286.7A Active CN108054843B (en) | 2017-12-29 | 2017-12-29 | A kind of bulb through-flow electricity generator stator stand structure |
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| Country | Link |
|---|---|
| CN (1) | CN108054843B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2852391A1 (en) * | 1977-12-13 | 1979-06-21 | Asea Ab | PIPE GENERATOR UNIT |
| CN1141529A (en) * | 1995-07-21 | 1997-01-29 | Abb管理有限公司 | Electric bulb type power generator |
| CN201038882Y (en) * | 2007-04-28 | 2008-03-19 | 天津市天发重型水电设备制造有限公司 | Generator stator base |
| CN201577002U (en) * | 2009-12-17 | 2010-09-08 | 哈尔滨电机厂有限责任公司 | Positioning rib supporting block structure |
| CN201726222U (en) * | 2010-07-21 | 2011-01-26 | 湘潭永达机械制造有限公司 | Doubly-feed wind-driven generator stator base |
| CN202282660U (en) * | 2011-08-26 | 2012-06-20 | 天津市天发重型水电设备制造有限公司 | Bulb type generator stator core V-shaped rib open-pore radial ventilation structure |
| CN103986253A (en) * | 2014-06-03 | 2014-08-13 | 北京天源科创风电技术有限责任公司 | Generator stator support and direct-drive forced air cooling wind generator applying same |
| CN104167840A (en) * | 2014-09-04 | 2014-11-26 | 东方电气集团东方电机有限公司 | Fixing structure for stator core and machine base |
| CN203984123U (en) * | 2014-06-10 | 2014-12-03 | 沈阳远大科技园有限公司 | Electric machine stand |
| CN204271789U (en) * | 2014-12-05 | 2015-04-15 | 东方电气集团东方电机有限公司 | A kind of steam turbine generator stand |
-
2017
- 2017-12-29 CN CN201711474286.7A patent/CN108054843B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2852391A1 (en) * | 1977-12-13 | 1979-06-21 | Asea Ab | PIPE GENERATOR UNIT |
| CN1141529A (en) * | 1995-07-21 | 1997-01-29 | Abb管理有限公司 | Electric bulb type power generator |
| CN201038882Y (en) * | 2007-04-28 | 2008-03-19 | 天津市天发重型水电设备制造有限公司 | Generator stator base |
| CN201577002U (en) * | 2009-12-17 | 2010-09-08 | 哈尔滨电机厂有限责任公司 | Positioning rib supporting block structure |
| CN201726222U (en) * | 2010-07-21 | 2011-01-26 | 湘潭永达机械制造有限公司 | Doubly-feed wind-driven generator stator base |
| CN202282660U (en) * | 2011-08-26 | 2012-06-20 | 天津市天发重型水电设备制造有限公司 | Bulb type generator stator core V-shaped rib open-pore radial ventilation structure |
| CN103986253A (en) * | 2014-06-03 | 2014-08-13 | 北京天源科创风电技术有限责任公司 | Generator stator support and direct-drive forced air cooling wind generator applying same |
| CN203984123U (en) * | 2014-06-10 | 2014-12-03 | 沈阳远大科技园有限公司 | Electric machine stand |
| CN104167840A (en) * | 2014-09-04 | 2014-11-26 | 东方电气集团东方电机有限公司 | Fixing structure for stator core and machine base |
| CN204271789U (en) * | 2014-12-05 | 2015-04-15 | 东方电气集团东方电机有限公司 | A kind of steam turbine generator stand |
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| Publication number | Publication date |
|---|---|
| CN108054843A (en) | 2018-05-18 |
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