JPH02112702U

JPH02112702U -

Info

Publication number: JPH02112702U
Application number: JP1950489U
Authority: JP
Priority date: 1989-02-23
Filing date: 1989-02-23
Publication date: 1990-09-10
Anticipated expiration: 2004-02-23
Also published as: JPH0716537Y2

Description

[Brief explanation of drawings]

第１図は本考案の第１実施例を示す要部断面図
、第２図は第１図の−線矢視断面図、第３図
は本考案の第２実施例を示す要部断面図、第４図
は同上第２実施例の第１永久磁石の正面図、第５
図Ａは転てつ機内部の構造を示す平面図、同図Ｂ
は同じく正面図である。１……モータ、１Ａ……モータ回転軸、２……
減速歯車機構、３……転換ローラ、４……動作桿
、２１……ケース、２２，４１……第１ホルダー
、２６，４２……第１永久磁石、２７……導体、
２８，２９……軸受、３０……出力軸、３２……
第２ホルダー、３３……第２永久磁石、４３……
第１磁性体（磁気ヒステリシス部材）。 Fig. 1 is a sectional view of a main part showing a first embodiment of the present invention, Fig. 2 is a sectional view taken along the - line in Fig. 1, and Fig. 3 is a sectional view of a main part showing a second embodiment of the invention. , Figure 4 is a front view of the first permanent magnet of the second embodiment, and Figure 5 is a front view of the first permanent magnet of the second embodiment.
Figure A is a plan view showing the internal structure of the point machine, Figure B
is also a front view. 1...Motor, 1A...Motor rotating shaft, 2...
Reduction gear mechanism, 3... conversion roller, 4... operating rod, 21... case, 22, 41... first holder, 26, 42... first permanent magnet, 27... conductor,
28, 29... Bearing, 30... Output shaft, 32...
Second holder, 33... Second permanent magnet, 43...
First magnetic body (magnetic hysteresis member).

Claims

[Claims for Utility Model Registration] (1) An electric point equipped with an electric switching mechanism that converts the tongue rail by engaging an operating rod connected to the tongue rail with an electric rotating mechanism and moving it back and forth linearly. In the motor, the motor is interposed between the motor included in the electric rotation mechanism and the reduction gear mechanism to transmit the rotation of the motor to the reduction gear mechanism, and is fixed to the rotation shaft side of the motor to reduce the rotation speed of the motor. a plurality of first permanent magnets that rotate together with the shaft; a first magnetic body that faces the first permanent magnets with a gap and is fixedly arranged in the rotational direction of the first permanent magnets;
a cylindrical conductor fixed to an output shaft side that is freely rotatably supported by a case substantially concentrically with the rotation axis of the motor and disposed in a gap between the first permanent magnet and the first magnetic body; A rotation transmitting part that transmits rotation on the rotating shaft side to the output shaft side, and a second permanent magnet and a second magnetic body facing each other with the cylindrical conductor in between and fixedly arranged in the circumferential direction of the conductor, respectively. A magnetic coupling for an electric point machine, comprising: a brake section that brakes rotation of the output shaft side. (2) The rotation transmission section faces a plurality of first permanent magnets that are fixed to the rotation shaft side of the motor and rotate integrally with the motor rotation shaft, and a plurality of first permanent magnets that are fixed to the output shaft side and face the plurality of first permanent magnets. 2. The magnetic coupling for an electric point machine according to claim 1, further comprising a first magnetic body having magnetic hysteresis arranged therein.