JPS6445452U

JPS6445452U -

Info

Publication number: JPS6445452U
Application number: JP13885087U
Authority: JP
Priority date: 1987-09-12
Filing date: 1987-09-12
Publication date: 1989-03-20

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示す概略正面図、
第２図Ａは回転子の構成を示す部分拡大図、第２
図Ｂは一枚の方向性けい素鋼板から多数の小片９
Ａを打抜き成形する際の板取りを示す部分拡大図
、第３図は本考案の第１の実施例による回転子を
示す縦断面図で、第４図は本考案の第２の実施例
による回転子を示す縦断面図で、第５図Ａ，Ｂは
従来の誘導電動機回転子を示す正面図及び一部縦
断面図である。図面中の符号、１：回転軸、２：コア、３：導
体バー、４：エンドリング、５：固定子、６：回
転子、７：押え筒、７Ａ：基部、７Ｂ：ねじ込み
部、７Ｃ：ねじ、７′：押え板、８：第１の円筒
、９：第２の円筒状コア、９Ａ：扇形小片、１４
：ボルトおよびナツト又はカシメピン。 FIG. 1 is a schematic front view showing an embodiment of the present invention;
Figure 2A is a partially enlarged view showing the configuration of the rotor;
Figure B shows a large number of small pieces 9 made from a single grain-oriented silicon steel plate.
FIG. 3 is a longitudinal sectional view showing the rotor according to the first embodiment of the present invention, and FIG. 4 is a partial enlarged view showing the cutting process when punching and forming A. FIG. 4 is a longitudinal sectional view showing the rotor according to the first embodiment of the present invention. FIGS. 5A and 5B are a longitudinal sectional view showing a rotor, and FIGS. 5A and 5B are a front view and a partial longitudinal sectional view showing a conventional induction motor rotor. Symbols in the drawings: 1: rotating shaft, 2: core, 3: conductor bar, 4: end ring, 5: stator, 6: rotor, 7: presser tube, 7A: base, 7B: screwed part, 7C: Screw, 7': Holding plate, 8: First cylinder, 9: Second cylindrical core, 9A: Sector-shaped small piece, 14
: Bolts and nuts or caulking pins.

Claims

[Claims for Utility Model Registration] (1) Fixedly arranged on the outer periphery of the shaft of the motor rotor,
A first cylinder formed from a material with no directionality such as a non-oriented silicon steel plate, and a material having directionality such as a grain-oriented silicon steel plate formed around the outer periphery of the cylinder radially from the center of the axis. a second cylinder formed by laminating a plurality of disc-shaped layers in the axial direction, which are formed by arranging the fan-shaped small pieces in the circumferential direction;
An electric motor rotor using a grain-oriented silicon steel plate, characterized in that it is comprised of a presser for tightening and fixing the first and second cylinders in the axial direction. (2) In paragraph (1) of claims for utility model registration,
A motor rotor using a grain-oriented silicon steel plate, characterized in that the magnetization orientation of the second cylinder made of the grain-oriented silicon steel plate is radial from the center of the axis of the rotor. (3) Scope of claims for utility model registration, paragraph (1) or (2)
In the electric motor rotor of item 1, the holding device has a U-shape in a half-cut cross section parallel to the axis, and has a pincushion shape as a whole, and both side flanges of the pincushion-shaped holding device and the rotor An electric motor rotor using grain-oriented silicon steel plate, characterized in that the first and second cylinders are housed in a recess defined by an axis of the . (4) Scope of claims for utility model registration, paragraph (1) or (2)
In the electric motor rotor of item 1, the holding device includes a pair of holding plates disposed on both sides in the axial direction, and a bolt and nut that pass through these holding plates and the first cylinder and are tightened and fixed in the axial direction. A motor rotor using grain-oriented silicon steel plate, characterized by comprising a caulking pin.