CN201577002U - Positioning rib supporting block structure - Google Patents
Positioning rib supporting block structure Download PDFInfo
- Publication number
- CN201577002U CN201577002U CN2009202443691U CN200920244369U CN201577002U CN 201577002 U CN201577002 U CN 201577002U CN 2009202443691 U CN2009202443691 U CN 2009202443691U CN 200920244369 U CN200920244369 U CN 200920244369U CN 201577002 U CN201577002 U CN 201577002U
- Authority
- CN
- China
- Prior art keywords
- positioning bar
- tray
- positioning rib
- plane
- supporting block
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Manufacture Of Motors, Generators (AREA)
Abstract
The utility model discloses a positioning rib supporting block structure which is characterized in that the lower plane of the positioning rib supporting block is an inclined plane and the upper plane thereof is a plane; an angle of design calculation is formed between the upper plane and the lower plane of the positioning rib supporting block; all the surfaces of a positioning rib supporting block upper dove-tail groove are perpendicular to the upper plane; the positioning rib supporting block and the positioning rib are of an assembling structure; and after assembling of the positioning rib supporting block and the positioning rib, a structure that a chute is available at the same-groove upper and lower ends of the stator core is naturally formed. The positioning rib supporting block structure can improve the accurate assembly of the stator core positioning rib of the chute structure, improve the processing precision and efficiency of the positioning rib supporting block, ensure the chute size to achieve the design requirements, and meet the safe operation of a unit.
Description
Technical field: the present invention relates to a kind of positioning bar tray structure that improves hydraulic generator skewed slot positioning bar assembly quality
Background technology: be vibration and the noise of avoiding hydraulic generator to select for use fractional slot winding to occur, some hydraulic generator has adopted the integer groove, but the major defect that adopts the integer groove is bigger wave distortion to occur, when every extremely every phase groove number will aggravate than a hour this situation, high order harmonic component in its potential waveform (comprising slot ripples), for the hydraulic generator that damping winding is arranged, the stator fluting causes the air-gap permeance cyclic variation, produce the pulsation of magnetic flux, thereby induction produces high-frequency current in amortisseur bar.The complementary field that this high-frequency current produces will induce the harmonic wave electromotive force in stator winding, cause the distortion of stator potential waveform.One of effective measures of improving voltage waveform during this type of unit Electromagnetic Design are exactly that stator adopts flume structure.The precision that the reasonability of the structural design of large-sized water turbine generator skewed slot stator, installation are made is of crucial importance to the safe and stable operation of generator.As shown in Figure 1, the structure of flume structure positioning bar tray is at present: the upper and lower plane parallel of tray; Tray is a dovetail slot with the positioning bar place of matching, and two side elevations that this groove matches with positioning bar are the inclined-plane, and the inclined-plane becomes predetermined angular with the upper and lower plane of tray; The tray structure is asked mutually and must be adopted the positioning bar of living to connect structure, and tray and positioning bar can not weld; A lot of problems appear in the design of flume structure hydraulic generator, manufacturing and installation process: the difficulty of processing of positioning bar tray is big, efficient is low, tiltedly dovetail slot needs one by one the secondary can moulding with special-purpose milling cutter processing, the dove afterbody can't process the inclined-plane, dovetail slot can't be processed into the inclined-plane with the suitable fully shape of positioning bar; Need when mounting positioning bar with the tray one by one reconditioning of special equipment to the inclined-plane interference of dove tail place, choker block is adjusted circumferential size between tray and positioning bar, and the positioning bar circumferential size is adjusted extremely difficult, makes the installation period lengthening to making, and installation accuracy is difficult to guarantee; For addressing the above problem, press for a kind of structure of the skewed slot positioning bar tray that can conveniently process and install.
Summary of the invention: the purpose of this utility model is to disclose a kind of positioning bar tray structure that hydraulic generator is decided flume structure positioning bar assembly quality that improves, the technical solution of the utility model is: middle positioning bar tray and each layer of support ring mating surface have the angle of inclination, are mutually the angle that positioning bar need tilt on the positioning bar tray between plane, the lower plane; Positioning bar tray bottom is the inclined plane, and positioning bar tray top is the plane, and each face of dovetail slot is vertical with the last plane of positioning bar tray on the positioning bar tray; A plurality of positioning bar trays on each positioning bar are axially fixed on the corresponding support ring flat-plate along positioning bar, form positioning bar tipper structure; Positioning bar tray and positioning bar are equipped relation; Welding is fixed on positioning bar tray and the support ring flat-plate, and positioning bar along the circumferential direction forms upper and lower side.The principle equal according to the parallel lines corresponding angles, make positioning bar tray lower plane be designed to the inclined-plane, go up the flat plane that is, become the design-calculated angle between the positioning bar tray above and below, each face of dovetail slot is vertical with last plane on the positioning bar tray, and positioning bar tray and positioning bar are assembly structure.Positioning bar tray and positioning bar assembling back form the structure of stator core with the oblique groove of groove upper and lower side naturally, can improve the accurate assembling of flume structure stator core positioning bar, improve the stator-core lamination quality, shorten the flume structure positioning bar assembling duration, improve positioning bar tray working (machining) efficiency.Single positioning bar peripheral, oblique adjusted size is simple during installation, and the adjustment of radial dimension is identical with the installation method of non-flume structure positioning bar.Dovetail slot structure and conventional structure that the positioning bar tray matches with positioning bar are identical, dovetail slot can cooperate with the suitable fully shape of positioning bar, but polylith is processed the positioning bar tray simultaneously, improve working (machining) efficiency, be easy to guarantee to reach design accuracy, the positioning bar tray of this structure is simple in structure, good manufacturability, and being applicable to the fixedly muscle structure of welding between positioning bar and the tray, the highly versatile of structure also is suitable for the hydraulic generator of low capacity.The utility model skewed slot positioning bar tray can thoroughly change the fault of construction of former skewed slot positioning bar tray.
Description of drawings
Fig. 1 is the skewed slot positioning bar tray structure chart that prior art is used
Fig. 2 skewed slot positioning bar of the present utility model tray structure chart
Fig. 3 is that P among Fig. 2 is to view
Positioning bar installation diagram when Fig. 4 adopts the utility model structure skewed slot positioning bar tray
Embodiment
A kind of positioning bar tray structure, as shown in Figure 4, middle positioning bar tray 3 has the angle of inclination with each layer of support ring 1 mating surface, is mutually the angle that positioning bar need tilt on the positioning bar tray 3 between plane, the lower plane; Positioning bar tray 3 bottoms are the inclined plane, and as Fig. 2, shown in Figure 3, positioning bar tray 3 tops are the plane, and each face of dovetail slot is vertical with the last plane face of positioning bar tray 3 on the positioning bar tray 3; A plurality of positioning bar trays 3 on each positioning bar 2 are axially fixed on the corresponding support ring flat-plate 1 along positioning bar 2, form positioning bar 2 tipper structures; Positioning bar tray 3 is equipped relation with positioning bar; 1 welding is fixed on positioning bar tray 3 and the support ring flat-plate, and positioning bar 2 along the circumferential direction forms upper and lower side.Calculate the gradient that needs processing by stator slot distance and stator core length gauge, process dovetail slot on the positioning bar tray earlier, process the inclined-plane that positioning bar tray 2 matches with support ring flat-plate 1 then by Fig. 2, but two operations all polyliths process the raising working (machining) efficiency simultaneously.
Positioning bar tray among Fig. 43 and each layer of support ring 1 mating surface are processed the gradient of the regulation of design, a plurality of positioning bar trays 3 on each positioning bar 2 axially are assemblied on the corresponding support ring flat-plate 1 along positioning bar, after adjusting qualified positioning bar 2 each installation dimension, with positioning bar tray 3 and 1 welding of each layer of support ring.Make positioning bar 2 tilt to reach design load along circumferentially forming upper and lower side after the erection welding, positioning bar 2 circumferencial direction inclination adjusted size are simple during installation, are easy to guarantee assembly precision.
Claims (1)
1. positioning bar tray structure is characterized in that: positioning bar tray (3) has the angle of inclination with each layer of support ring (1) mating surface, and positioning bar tray (3) is gone up and is mutually the angle that positioning bar (2) needs inclination between plane, the lower plane; Positioning bar tray (3) bottom is the inclined plane, and positioning bar tray (3) top is the plane, and each face that positioning bar tray (3) is gone up dovetail slot is vertical with the last plane of positioning bar tray (3); A plurality of positioning bar trays (3) on each positioning bar (2) are axially fixed on the corresponding support ring flat-plate (1) along positioning bar, form positioning bar tipper structure; Positioning bar tray (3) is equipped relation with positioning bar; (1) welding is fixed on positioning bar tray (3) and the support ring flat-plate, and positioning bar (2) along the circumferential direction forms upper and lower side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202443691U CN201577002U (en) | 2009-12-17 | 2009-12-17 | Positioning rib supporting block structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202443691U CN201577002U (en) | 2009-12-17 | 2009-12-17 | Positioning rib supporting block structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201577002U true CN201577002U (en) | 2010-09-08 |
Family
ID=42696873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202443691U Expired - Fee Related CN201577002U (en) | 2009-12-17 | 2009-12-17 | Positioning rib supporting block structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201577002U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103872813A (en) * | 2012-12-11 | 2014-06-18 | 上海电气集团上海电机厂有限公司 | Motor rotor skewed slot iron core and processing method thereof |
| CN104184281A (en) * | 2013-05-21 | 2014-12-03 | 东方电气集团东方电机有限公司 | Mounting method for motor positioning ribs |
| CN108054843A (en) * | 2017-12-29 | 2018-05-18 | 东方电气集团东方电机有限公司 | A kind of bulb through-flow electricity generator stator stand structure |
-
2009
- 2009-12-17 CN CN2009202443691U patent/CN201577002U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103872813A (en) * | 2012-12-11 | 2014-06-18 | 上海电气集团上海电机厂有限公司 | Motor rotor skewed slot iron core and processing method thereof |
| CN104184281A (en) * | 2013-05-21 | 2014-12-03 | 东方电气集团东方电机有限公司 | Mounting method for motor positioning ribs |
| CN108054843A (en) * | 2017-12-29 | 2018-05-18 | 东方电气集团东方电机有限公司 | A kind of bulb through-flow electricity generator stator stand structure |
| CN108054843B (en) * | 2017-12-29 | 2018-12-07 | 东方电气集团东方电机有限公司 | A kind of bulb through-flow electricity generator stator stand structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Fei et al. | Comparison of cogging torque reduction in permanent magnet brushless machines by conventional and herringbone skewing techniques | |
| CN201577002U (en) | Positioning rib supporting block structure | |
| CN106849422B (en) | A kind of four iron leg core cast-aluminum rotors and motor with flume structure | |
| CN102931741B (en) | Compact permanent magnet wind generator rotor | |
| US9755492B2 (en) | Rotatable transverse flux electrical machine | |
| CN109637796B (en) | High-precision reluctance type rotary transformer and winding method thereof | |
| CN207150279U (en) | A kind of motor rotor stamping sheet structure | |
| CN104079085A (en) | Motor and sine stator | |
| CN102055258B (en) | Magnetic pole shoe of salient pole synchronous motor | |
| CN204258477U (en) | A kind of rotor structure of permanent magnet synchronization motor spindle | |
| CN109802657B (en) | PFN forming module for Marx generator and fixing device thereof | |
| CN102510151B (en) | 252-slot and 14-pole asymmetric four-branch two-layer three-phase stator winding | |
| CN202475203U (en) | Damping ring structure of salient pole synchronous motor | |
| CN202111543U (en) | Salient pole type rotor iron core of three-phase brushless alternating-current generator | |
| Ren et al. | Reducing cogging torque and suppressing torque ripple in PMASynRM for EV/HEV applications | |
| CN109728658A (en) | A kind of novel five phases salient pole synchronous magnetic resistance motor and its suppressing method of torque pulsation | |
| US20200080535A1 (en) | Linear vernier generator for wave energy conversion | |
| CN107612258A (en) | A kind of permagnetic synchronous motor | |
| CN115955028A (en) | Rotor for reducing torque pulsation of synchronous reluctance motor | |
| EP3402044A1 (en) | Magnet module and method of manufacturing same | |
| EP2806536A1 (en) | Electric machine | |
| Quintal-Palomo et al. | Parametric analysis for the design of a 4 pole radial permanent magnet generator for small wind turbines | |
| CN209293967U (en) | Bracket, wind-driven generator and wind power generating set for wind-driven generator | |
| KR20120104829A (en) | Radial flux permanent magnet generator mounting a coil and permanent magnet in radial direction and assembling method therefore | |
| Masmoudi | Design and Electromagnetic Feature Analysis of AC Rotating Machines |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100908 Termination date: 20141217 |
|
| EXPY | Termination of patent right or utility model |