WO2004001932A1 - Method and system for assembling an electricity generating unit - Google Patents
Method and system for assembling an electricity generating unit Download PDFInfo
- Publication number
- WO2004001932A1 WO2004001932A1 PCT/EP2003/006152 EP0306152W WO2004001932A1 WO 2004001932 A1 WO2004001932 A1 WO 2004001932A1 EP 0306152 W EP0306152 W EP 0306152W WO 2004001932 A1 WO2004001932 A1 WO 2004001932A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- centering
- rotor
- stator
- generator
- bolts
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000005611 electricity Effects 0.000 title abstract 2
- 230000002093 peripheral effect Effects 0.000 claims abstract 2
- 238000004804 winding Methods 0.000 claims description 8
- 238000002485 combustion reaction Methods 0.000 claims description 7
- 150000002505 iron Chemical class 0.000 claims description 5
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/16—Centering rotors within the stator; Balancing rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
- H02K7/1807—Rotary generators
- H02K7/1815—Rotary generators structurally associated with reciprocating piston engines
Definitions
- the present invention relates to a method and arrangement for assembling a power generator unit comprising a generator and a reciprocating piston internal combustion engine as the drive. It relates in particular to the centering of an inner stator arranged with an air gap within an outer rotor.
- Power generator units consisting of generator and driving reciprocating internal combustion engine, and their assembly are known.
- DE 100 10 248 AI from the same applicant describes a power generator of this type with a stationary armature winding and permanent magnets arranged in the rotor to excite the generator, the rotor as the external rotor forming the flywheel of the diesel engine and the stator carrying the armature winding and being arranged within the rotor , Furthermore, the rotor is attached to a fan wheel, which in turn is flanged to the crankshaft of the drive motor.
- the stator is constructed as iron sheet metal packet, which carries the armature winding and, by means of bolted * guided through bores in its sheet metal packet together, the laminated core exciting stator screws with an inner ring of an outflow side provided generator housing cover.
- the rotor is designed as a laminated iron package, which carries the permanent magnets for generating a rotating magnetic field, and is screwed several times to the circumference of the fan wheel by means of tensioning screws guided through holes in its laminated core and tightening the laminated core.
- the rotor is fastened to the fan wheel by the clamping screws, which in turn is flanged to the crankshaft of the drive motor.
- the generator housing is attached to a motor-side connection housing using fastening screws.
- the stator is attached to the housing cover of the generator housing using stator screws. Finally, the housing cover is placed on the generator housing and fastened there using screw bolts.
- stator Since the stator is only positioned indirectly within the rotor, the stator can only be centered indirectly in the rotor.
- the centering of the stator therefore depends on the following assembly tolerances: assembly tolerance when attaching the rotor to the fan wheel, assembly tolerance when attaching the generator housing to the motor-side connection housing, which in turn was already installed with an assembly tolerance on the fan wheel or crankshaft, assembly tolerance when attaching the stator to the housing cover and assembly tolerance when attaching the housing cover to the generator housing.
- the object of the present invention is to overcome the disadvantages of the indirect centering of the stator within the rotor known in the prior art. According to a proposal of the invention, this object is achieved by the features of the independent claims. Advantageous embodiments of the invention are given by the features of the dependent claims.
- a method for assembling a power generator unit comprising a generator and a reciprocating piston internal combustion engine as a drive, in particular for centering an inner stator arranged with an air gap within an outer rotor, is specified, which comprises the following step: First, the outer rotor of the generator is attached to the drive motor and connected to the drive system of the drive motor; This can be done, for example, in such a way that the rotor is connected to a fan wheel, which in turn is fastened on the end face to a crankshaft of the drive motor.
- centering bolts offset in the circumferential direction are inserted into centering grooves provided in the rotor / stator for partial reception, seen in the radial direction, of centering bolts bridging the air gap.
- the centering grooves are thus shaped in such a way that a centering pin inserted into a centering groove has a portion protruding from the centering groove in the radial direction.
- stator is then centered within the rotor, the stator being inserted within the rotor along the centering bolts. If both the rotor and the stator have centering grooves, when the stator is centered, a centering bolt that has already been inserted into a centering groove of the rotor or stator is inserted into a centering groove of the rotor or stator that is opposite across the air gap.
- stator is attached to the generator housing in a centered position.
- stator can be attached to a housing cover to be attached to the generator housing.
- the generator housing is in turn installed before or after the stator is attached to a motor-side connection housing.
- centering bolts must be removed from the air gap. This can be done, for example, in that the centering bolts are pulled out of the generator through holes arranged in the housing cover.
- centering pins are in a special shape, namely in the form of a cylinder part cut along the cylinder axis with a flat cut surface, there is the possibility of rotating the centering pins until they no longer have any portions protruding from a centering groove in the radial direction.
- the prerequisite here is that a centering pin can find complete space in a centering groove, i. H. the flat cut surface in such an initially cylindrical centering pin must be positioned within the cylinder in such a way that the maximum vertical distance of a circumferential point from the cut surface is less than or equal to the depth of a centering groove.
- the centering bolt should then be fixed in this position by a suitable restraint system, which can be done, for example, by a spring.
- the stator is centered directly in the rotor in an extremely advantageous manner. Any assembly tolerances when assembling the rotor or other components, which play a role in the centering of the stator known in the prior art, are irrelevant here.
- This arrangement comprises a power generator unit consisting of a generator and a reciprocating piston internal combustion engine as a drive, in particular a synchronous generator and a diesel engine, and centering pins provided for centering the stator within the rotor.
- the generator has an outer rotor built on the drive motor and an inner stator attached to the generator housing.
- the arrangement according to the invention is characterized in that the rotor or stator is provided on its circumferential surface adjacent to the air gap with at least two axially extending centering grooves which are open towards the air gap and in which a centering pin, as seen in the radial direction, is partially accommodated, and that on the Centering pin is centered on the other circumferential surface.
- the centering grooves are thus shaped such that the centering bolts have portions protruding radially from the centering grooves.
- both circumferential surfaces are provided with centering grooves, in which the centering bolts are partially received.
- the rotor can be attached to a fan wheel, which in turn is attached to a crankshaft of the drive motor on the end face.
- the rotor can also be designed, for example, as a laminated iron package which carries the permanent magnets for generating a rotating magnetic field and is screwed several times to the circumference of the fan wheel by means of tensioning screws guided through bores in its laminated core and tightening the laminated core.
- the stator can be designed as a laminated iron package, which carries the armature winding, and is screwed to an inner ring of a generator housing cover provided on the outflow side by means of stator screws guided through bores in its laminated core and tightening the laminated core.
- FIG. 1 is an axial section through a motor / generator unit according to section I-I of FIG. 2,
- FIG. 2 is a view of the stator and the rotor of the motor generator unit according to section II-II of FIG. 1,
- the electrical machine forming a power generator shown in FIGS. 1 and 2 relates to a unit comprising a drive motor and a synchronous generator.
- the preferred drive motor is a diesel engine, of which only the connection-side end of its crankshaft 1 is shown in dashed lines.
- a fan wheel 2 is attached to the front side of the crankshaft 1 by means of screws 3.
- the fan wheel 2 has blades 4 for sucking in an air flow according to arrow L and for generating an air flow according to arrow S1 for engine cooling and arrow S2 for generator cooling.
- a motor-side connection housing 5 encloses the space in which the fan wheel 2 is accommodated radially outwards; it is open to the engine and has on its opposite side an annular flange 6 with threaded holes for screwing in fastening screws 7 for the connection of the cylindrical generator housing 8, in which it is clamped flat on both end faces.
- the fastening screws 7 are arranged on the inside of the generator housing 8 distributed over the circumference and span the entire length of the housing.
- a generator housing cover 9 is provided, to which the stator 11 of the generator is attached.
- stator screws 17 which are screwed through bores in the laminated core via spacer sleeves 20, are sufficient for fastening the stator.
- the winding phases of the three-phase winding 28 of the generator are received in corresponding cutouts 38 in the laminated core of the stator 11.
- the stator 11 is surrounded by the rotor 29, which is likewise constructed from a laminated core which is clamped together by means of clamping screws 30 which are screwed into corresponding threaded bores in the fan wheel 2 with a threaded end 31 on the motor side. Support sleeves 32 pushed onto the tensioning screws 30 are clamped between the fan wheel and the associated side of the rotor 29.
- the rotor 29 is thus connected in a rotationally fixed manner to the fan wheel 2. On its inner circumference, it forms a narrow, approximately 2 mm wide air gap 33 with respect to the stator 11.
- the rotor 29 has, in the axial direction, continuous pockets which run approximately circularly within two segments and into which magnetic elements 35 are inserted from both sides in the present example, as can be seen from FIG. 2, two rows of ten magnet elements 35 arranged next to one another per pole, which are responsible for the magnetic excitation of the generator.
- the view according to FIG. 2 shows the rotor 29 which is fastened to the fan wheel 2 with four clamping screws 30.
- polygonal cutouts are provided on the inner circumference of the rotor 29, which form open pockets in which magnetic elements 35 are inserted into the two poles.
- the contour of the laminated core forming the rotor 29 can be seen, but also that of the laminated core forming the stator, which cutouts 38 for receiving the winding wires.
- centering grooves 39 with a cross-sectional profile in the form of a pitch circle are left out in the rotor 29 on the inner circumference of the rotor for centering the stator 11.
- centering grooves 41 are recessed in the outer circumference of the stator, which are also shaped with a cross-sectional profile in the form of a (here interrupted) partial circle.
- the air gap is between the centering grooves.
- a centering pin 40 inserted into the centering grooves 39, 41 of the rotor and stator bridges the air gap 33.
- the rotor 29 is first attached to the fan wheel 2 of the drive motor. Then two cylindrically shaped centering bolts are inserted into the centering grooves 39 of the rotor. Since the centering grooves of the rotor 29 are shaped in the form of a pitch circle, they do not completely encompass the centering bolts in the radial direction, so that part of the centering bolts projects radially out of the centering grooves. Subsequently, the stator 11 is inserted into the rotor along the portions of the centering bolts which protrude from the centering grooves 39 of the rotor and are positioned at the same distance from the rotor around the outer circumference, ie inside the rotor 29. trated.
- the inner circumferential surface of the rotor 29 and the outer circumferential surface of the stator 11 lie against the center pin 40.
- the stator 11 is then screwed to the housing cover 9 in a centered position, and the housing cover 9 is fastened to the generator housing 8. Finally, the centering pins 40 are removed from the generator through holes 42 in the housing cover 9.
- the relative position of the rotor and stator can be exchanged symmetrically, i. H. the rotor can be designed as an inner rotor and the stator as an outer stator.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004514692A JP2005531271A (en) | 2002-06-25 | 2003-06-12 | Method and configuration for assembling a power generation unit |
EP03740229A EP1516413A1 (en) | 2002-06-25 | 2003-06-12 | Method and system for assembling an electricity generating unit |
AU2003278223A AU2003278223A1 (en) | 2002-06-25 | 2003-06-12 | Method and system for assembling an electricity generating unit |
KR10-2004-7020402A KR20050012285A (en) | 2002-06-25 | 2003-06-12 | Method and system for assembling an electricity generating unit |
US11/018,040 US20050104461A1 (en) | 2002-06-25 | 2004-12-21 | Method and system for assembling an electricity generating unit |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10228225.0 | 2002-06-25 | ||
DE10228225A DE10228225B4 (en) | 2002-06-25 | 2002-06-25 | Method and arrangement for assembling a power generator unit |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/018,040 Continuation US20050104461A1 (en) | 2002-06-25 | 2004-12-21 | Method and system for assembling an electricity generating unit |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004001932A1 true WO2004001932A1 (en) | 2003-12-31 |
Family
ID=29795865
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2003/006152 WO2004001932A1 (en) | 2002-06-25 | 2003-06-12 | Method and system for assembling an electricity generating unit |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP1516413A1 (en) |
JP (1) | JP2005531271A (en) |
KR (1) | KR20050012285A (en) |
CN (1) | CN1663098A (en) |
AU (1) | AU2003278223A1 (en) |
DE (1) | DE10228225B4 (en) |
RU (1) | RU2004134333A (en) |
WO (1) | WO2004001932A1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1672770A1 (en) * | 2004-12-16 | 2006-06-21 | Etel S.A. | Frameless torque motor with a shipping fixture securing the rotor with respect to the stator |
US7908735B2 (en) | 2004-05-31 | 2011-03-22 | Abb Oy | Method and installation means for installing an electrical machine |
EP2385614A1 (en) * | 2010-05-06 | 2011-11-09 | The Switch Drive Systems Oy | An electrical machine and a method for assembling it |
US8629591B2 (en) | 2010-05-06 | 2014-01-14 | Moventas Gears Oy | Electromechanical device |
US9464691B2 (en) | 2010-05-06 | 2016-10-11 | The Switch Drive Systems Oy | Electromechanical device |
US9525320B2 (en) | 2010-05-06 | 2016-12-20 | Moventas Gears Oy | Electromechanical device with included gear stages and internal lubrication system |
EP2339721B1 (en) | 2009-12-22 | 2021-01-27 | EC Power A/S | Generator mounted on an internal combustion engine |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004024976B4 (en) * | 2004-05-21 | 2008-01-24 | Motorenfabrik Hatz Gmbh & Co. Kg | Starting device for power generator as a unit of internal combustion engine and generator |
DE112013006947T5 (en) * | 2013-04-15 | 2015-12-31 | Mitsubishi Electric Corporation | Rotor support structure of a rotary electric machine for hybrid vehicles |
JP6513240B1 (en) * | 2018-01-17 | 2019-05-15 | 三菱電機株式会社 | Motor replacement method |
GB201808132D0 (en) * | 2018-05-18 | 2018-07-11 | Electronica Products Ltd | Electrical Machine |
CN109531508B (en) * | 2019-01-09 | 2020-08-11 | 上海科泰电源股份有限公司 | Assembly centering debugging process for high-voltage diesel generator set |
CN109921563A (en) * | 2019-04-22 | 2019-06-21 | 弘允新能源(上海)有限公司 | A kind of flywheel close coupled type generator |
DE102019212534A1 (en) * | 2019-08-21 | 2021-02-25 | Vitesco Technologies Germany Gmbh | Method for arranging an electrical machine on a gearbox |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5952746A (en) * | 1997-05-22 | 1999-09-14 | Still Gmbh | Electrical machine and method for mounting such electrical machine on a unit |
US6204577B1 (en) * | 2000-01-05 | 2001-03-20 | Jeffrey Eliot Chottiner | Method and apparatus for space-saving installation of a starter-alternator |
DE10010248A1 (en) * | 2000-03-02 | 2001-09-13 | Hatz Motoren | Current generator unit for vehicle, has rotor built on fan wheel attached by flange to crankshaft of drive engine and stator designed as laminated iron packet |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2797358B1 (en) * | 1999-08-06 | 2001-08-31 | Renault | ELECTRIC DEVICE MOUNTED ON A DRIVE UNIT |
DE10010268A1 (en) * | 2000-03-02 | 2001-09-13 | Hartmann Paul Ag | Absorbent article for use in nappies, sanitary towels and incontinence pads, is made from superabsorbent polymer material bound together by thermoplastic, both polymers being extruded in presence of blowing agent |
-
2002
- 2002-06-25 DE DE10228225A patent/DE10228225B4/en not_active Expired - Fee Related
-
2003
- 2003-06-12 EP EP03740229A patent/EP1516413A1/en not_active Withdrawn
- 2003-06-12 CN CN038146592A patent/CN1663098A/en active Pending
- 2003-06-12 RU RU2004134333/11A patent/RU2004134333A/en unknown
- 2003-06-12 WO PCT/EP2003/006152 patent/WO2004001932A1/en not_active Application Discontinuation
- 2003-06-12 AU AU2003278223A patent/AU2003278223A1/en not_active Abandoned
- 2003-06-12 JP JP2004514692A patent/JP2005531271A/en active Pending
- 2003-06-12 KR KR10-2004-7020402A patent/KR20050012285A/en not_active Application Discontinuation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5952746A (en) * | 1997-05-22 | 1999-09-14 | Still Gmbh | Electrical machine and method for mounting such electrical machine on a unit |
US6204577B1 (en) * | 2000-01-05 | 2001-03-20 | Jeffrey Eliot Chottiner | Method and apparatus for space-saving installation of a starter-alternator |
DE10010248A1 (en) * | 2000-03-02 | 2001-09-13 | Hatz Motoren | Current generator unit for vehicle, has rotor built on fan wheel attached by flange to crankshaft of drive engine and stator designed as laminated iron packet |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7908735B2 (en) | 2004-05-31 | 2011-03-22 | Abb Oy | Method and installation means for installing an electrical machine |
EP1672770A1 (en) * | 2004-12-16 | 2006-06-21 | Etel S.A. | Frameless torque motor with a shipping fixture securing the rotor with respect to the stator |
US7394177B2 (en) | 2004-12-16 | 2008-07-01 | Etel S.A. | Frameless torque motor with a transport securing device |
EP2339721B1 (en) | 2009-12-22 | 2021-01-27 | EC Power A/S | Generator mounted on an internal combustion engine |
EP2385614A1 (en) * | 2010-05-06 | 2011-11-09 | The Switch Drive Systems Oy | An electrical machine and a method for assembling it |
CN102237742A (en) * | 2010-05-06 | 2011-11-09 | 斯维奇传动系统有限公司 | Electrical machine and a method for assembling it |
KR101273089B1 (en) | 2010-05-06 | 2013-06-10 | 더 스위치 드라이브 시스템즈 오와이 | An electrical machine and a method for assembling it |
US8629591B2 (en) | 2010-05-06 | 2014-01-14 | Moventas Gears Oy | Electromechanical device |
US8841815B2 (en) | 2010-05-06 | 2014-09-23 | The Switch Drive Systems Oy | Electrical machine with guide bars for facilitating assembly and a method for assembling the electrical machine |
US9464691B2 (en) | 2010-05-06 | 2016-10-11 | The Switch Drive Systems Oy | Electromechanical device |
US9525320B2 (en) | 2010-05-06 | 2016-12-20 | Moventas Gears Oy | Electromechanical device with included gear stages and internal lubrication system |
Also Published As
Publication number | Publication date |
---|---|
CN1663098A (en) | 2005-08-31 |
RU2004134333A (en) | 2005-08-10 |
DE10228225B4 (en) | 2004-05-19 |
EP1516413A1 (en) | 2005-03-23 |
KR20050012285A (en) | 2005-01-31 |
AU2003278223A1 (en) | 2004-01-06 |
JP2005531271A (en) | 2005-10-13 |
DE10228225A1 (en) | 2004-01-29 |
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