WO2014089644A1 - Máquina elétrica girante de imãs permanentes com método de montagem e desmontagem da mesma - Google Patents
Máquina elétrica girante de imãs permanentes com método de montagem e desmontagem da mesma Download PDFInfo
- Publication number
- WO2014089644A1 WO2014089644A1 PCT/BR2012/000511 BR2012000511W WO2014089644A1 WO 2014089644 A1 WO2014089644 A1 WO 2014089644A1 BR 2012000511 W BR2012000511 W BR 2012000511W WO 2014089644 A1 WO2014089644 A1 WO 2014089644A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- perforations
- assembly
- rotor
- permanent
- bearing
- Prior art date
Links
Classifications
-
- 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
- H02K5/00—Casings; Enclosures; Supports
Definitions
- the present patent application discloses a rotating permanent magnet electric machine and a method for assembling and disassembling it comprising a rotating electric machine, whether a permanent magnet motor or generator, provided with a plurality of threaded holes disposed on its surface. of the rear cover, transverse non-magnetic rods associated therewith and a support device for the rods.
- permanent magnets have been gradually adopted in electrical machine designs. Some advantages over field windings are the reduced risk of demagnetization due to high coercivity, large remaining induction and high energy product, properties that are especially noticeable in rare earth super magnets (such as neodymium iron boron or still samarium cobalt). In addition, it is a further advantage that permanent magnet technology enables a high torque-to-volume ratio by eliminating the need for DC power and hence the incorporation of brushes into the design of the electric machine. Another great advantage of this type of machine is that it can operate at constant torques over a wide speed range, in conjunction with frequency inverters,
- US 20080016674 discloses a method for installing a rotor on a stator of a rotating electric machine comprising the steps of inserting nonmagnetic axial spacers into the outer surface of the rotor so that the rotor does not contact the inner surface. of the stator.
- US 20100154201 discloses an apparatus and method for assembling and disassembling electric motor components, comprising a support table provided with clamping tools, comprising a housing on which a piston is projected, aligned with the rotor shaft, a mechanism steering system designed to generate relative motion between the machine and the engine and a frame to lift the engine.
- JP 2003-70212 discloses an accessory device for mounting and dismounting rotating electric machines comprising an inner frame in which the stator is contained and an outer frame, associated with a rear plate on which a shaft that can support the inner frame is designed. .
- JP 4207937 discloses a method for assembling and disassembling a rotating electric machine, comprising the steps of rotor suspension through a crane and connected by a wire rope to a rotor core part, via a hook, and connected to one end of an opposite axis of rotation.
- the present patent application discloses an electric permanent magnet machine having a plurality of threaded holes disposed on the surface of the back cover, transverse non-magnetic rods associated therewith, and a support device for the rods.
- the present patent application aims to enable the field assembly and disassembly of said machine with a relatively low installation cost compared to existing solutions in the state of the art.
- Figures 1 and 2 illustrate a lathe common to the state of the art.
- Figure 3 illustrates a rear view of the mounting plate.
- Figure 4 illustrates a front view of the mounting plate.
- Figure 5 illustrates a perspective view of the mounting system.
- Figure 6 illustrates a perspective view of the mounting system at a later stage.
- Figure 7 illustrates a perspective top view of the mounting system.
- Figure 8 illustrates a perspective top view of the mounting system at a later stage.
- Figure 9 shows a top view of the back cover showing the perforations.
- Figure 10 illustrates a perspective view of the back cover.
- Figure 11 shows a top view of a back cover, showing the rods, fins and the fixing screw.
- Figure 12 shows a rear view of the mounting plate with the mounting screws installed.
- the rotor In the technology of permanent magnet electric machines, the rotor consists of magnet bars, usually grouped into alnics (aluminum, nickel and cobalt), ceramics (barium or strontium ferrites) and rare earths (SmCO and NdFeB); For this reason the assembly and disassembly of this line of motors is It is difficult because when one of the cap bearings is removed, the rotor is attracted by the stator, causing with this attraction the possibility of motor damage and risk of accident.
- alnics aluminum, nickel and cobalt
- ceramics barium or strontium ferrites
- SmCO and NdFeB rare earths
- the system claimed here constructively provides for an increase of the air gap (distance between the rotor and the stator) in a small area, with strategic positioning between the magnets, allowing the insertion of non magnetic rods ( 4), without major losses in yield.
- the proposed system is initially adapted to a rotating permanent magnet electric machine (1), provided with a rotor (2) comprising a series of peripheral transverse channels (3).
- the channels (3) are formed from concave regions of the outer surface of (2) and each will accommodate a longline (4) attachment structure, and sliding over (3).
- the structures (4) will be responsible for centralizing the rotor (2), separating it from the internal surface of the stator, during assembly or disassembly.
- said structures (4) consist of non-magnetic rods, which will pass through the cap bearing (5) of the rotating electric machine (1) by means of perforations (10) disposed on the outer surface of the bearing. (5) and communicate with the channels (3) allowing the accommodation and sliding of the longline structures (4).
- the rods are preferably made of brass, but other materials may be used such as aluminum, copper, lead, tin or zinc.
- the back (7a) of the plate (7) in contact with the cover (5) has a plurality of concentric and radial positioner grooves (11) and a central circular hole (13) complementary to the protruding projection of the rotor shaft (2). ) of the machine cover bearing (1).
- Figure 4 in turn, has the outer side (7b) of the plate (7) facing the operator and has cavities (14) surrounding the perforations (6).
- the plate (7) is fixed to the cap bearing (5) by screws (9), passing through the holes (6 and 14) in order to be fixed to the electric machine (1) by means of threaded holes (12 and 14). , as can be seen in its final form in figure 6. In this sense, the arrangement and sizing of the holes should consider the design of the electric machine of interest.
- the method of disassembling the rotating electric machine using the present The system comprises the steps of installing screws (9) into the holes (6), through which it reaches the threaded holes
- the electric machine (1) is positioned on a suitable working surface, vertically and the opposite cover bearing is removed.
- a protective plate (7c) from the stator (2a) is introduced and the rotor is then removed.
- the method of mounting comprises securing one of the cap bearings (5), followed by connection of the support device (7) and axial positioning of the rods (4). Afterwards, the electric machine (1) is suspended by a hoist and placed vertically on a work surface. The rods (4) are inserted and fixed to the inner surface of the stator (2a) and positioned at the bottom through the perforations (10) of the cap bearing (5) previously mounted on the electric machine (1).
- the protective plate (7c) is then positioned and the rotor (2) is mounted on (1), positioning the rods (4) over the channels.
- the protector (7c) is removed and the cap bearing (5) is mounted, positioning the motor (1) horizontally. Remove the device (7), the screws (9) and the rods (4). Finally, the screw plugs (not shown) are positioned over the holes (6) and the usual assembly steps are carried out in the application or preparation for transport.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Motors, Generators (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR112013026959-6A BR112013026959B1 (pt) | 2012-12-11 | 2012-12-11 | Máquina elétrica girante de imãs permanentes com método de montagem e desmontagem da mesma |
PCT/BR2012/000511 WO2014089644A1 (pt) | 2012-12-11 | 2012-12-11 | Máquina elétrica girante de imãs permanentes com método de montagem e desmontagem da mesma |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/BR2012/000511 WO2014089644A1 (pt) | 2012-12-11 | 2012-12-11 | Máquina elétrica girante de imãs permanentes com método de montagem e desmontagem da mesma |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014089644A1 true WO2014089644A1 (pt) | 2014-06-19 |
Family
ID=50933605
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/BR2012/000511 WO2014089644A1 (pt) | 2012-12-11 | 2012-12-11 | Máquina elétrica girante de imãs permanentes com método de montagem e desmontagem da mesma |
Country Status (2)
Country | Link |
---|---|
BR (1) | BR112013026959B1 (pt) |
WO (1) | WO2014089644A1 (pt) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1988006373A1 (en) * | 1987-02-17 | 1988-08-25 | Fanuc Ltd | Method of inserting rotor of motor and motor suitable therefor |
EP1536545A2 (en) * | 2003-11-28 | 2005-06-01 | Koyo Seiko Co., Ltd. | Electric motor, electric motor manufacturing method, and electric motor manufacturing device |
JP2009207212A (ja) * | 2008-02-26 | 2009-09-10 | Nissan Motor Co Ltd | モータ/ジェネレータおよびその組み立て方法 |
WO2012157083A1 (ja) * | 2011-05-18 | 2012-11-22 | トヨタ自動車株式会社 | 複軸並列モータの製造方法及びカバー組付け治具 |
-
2012
- 2012-12-11 WO PCT/BR2012/000511 patent/WO2014089644A1/pt active Application Filing
- 2012-12-11 BR BR112013026959-6A patent/BR112013026959B1/pt active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1988006373A1 (en) * | 1987-02-17 | 1988-08-25 | Fanuc Ltd | Method of inserting rotor of motor and motor suitable therefor |
EP1536545A2 (en) * | 2003-11-28 | 2005-06-01 | Koyo Seiko Co., Ltd. | Electric motor, electric motor manufacturing method, and electric motor manufacturing device |
JP2009207212A (ja) * | 2008-02-26 | 2009-09-10 | Nissan Motor Co Ltd | モータ/ジェネレータおよびその組み立て方法 |
WO2012157083A1 (ja) * | 2011-05-18 | 2012-11-22 | トヨタ自動車株式会社 | 複軸並列モータの製造方法及びカバー組付け治具 |
Also Published As
Publication number | Publication date |
---|---|
BR112013026959B1 (pt) | 2023-04-25 |
BR112013026959A2 (pt) | 2020-11-03 |
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