JPH0374185U

JPH0374185U -

Info

Publication number: JPH0374185U
Application number: JP13356489U
Authority: JP
Priority date: 1989-11-16
Filing date: 1989-11-16
Publication date: 1991-07-25

Description

[Brief explanation of drawings]

第１図はこの考案を実施した渦電流式減速装置
の縦断断面図、第２図は第１図Ａ−Ａ線上の縦断
側面図、第３図はこの考案の実施による磁石固定
装置を展開して示す斜視図、第４図は第３図によ
り組立てた磁石固定部分の拡大断面図、第５図は
従来の方法により永久磁石を固定する際の展開斜
視図、第６図は第５図により組立てた磁石固定部
分の拡大断面図である。１……ローター、１−１……円筒部、１−２…
…冷却フイン、２……永久磁石、２−１……係合
段部、３……磁気シールドケーシング、４……回
転軸、５……磁石支持リング、６……案内鞍、７
……軸受、８……エアーシリンダ、８−１……ロ
ツド、９……押え金具、９−１……係合段部、１
０……ボルト、１１……合成樹脂シート、１８−
１，１８−２……すきま。 Fig. 1 is a vertical cross-sectional view of an eddy current speed reduction device implementing this invention, Fig. 2 is a longitudinal cross-sectional side view taken along line A-A in Fig. 1, and Fig. 3 is an expanded view of a magnet fixing device according to this invention. 4 is an enlarged sectional view of the magnet fixing part assembled according to FIG. 3, FIG. 5 is an exploded perspective view of the permanent magnet fixed by the conventional method, and FIG. FIG. 3 is an enlarged cross-sectional view of the assembled magnet fixing part. 1...Rotor, 1-1...Cylindrical part, 1-2...
...Cooling fin, 2...Permanent magnet, 2-1...Engagement step, 3...Magnetic shield casing, 4...Rotating shaft, 5...Magnet support ring, 6...Guiding saddle, 7
... Bearing, 8 ... Air cylinder, 8-1 ... Rod, 9 ... Holding metal fitting, 9-1 ... Engagement stepped portion, 1
0... Bolt, 11... Synthetic resin sheet, 18-
1,18-2...Gap.

Claims

[Scope of utility model registration request]

It has a magnet support ring surrounding a plurality of permanent magnets so that the polarities of adjacent magnets are opposite to each other. In a speed reduction device equipped with a control mechanism that controls eddy currents generated in the rotor by a magnetic circuit of permanent magnets, a large number of permanent magnets each having engagement steps on both end faces are engaged at a predetermined interval on both side faces. A presser metal fitting made of a non-magnetic material is disposed circumferentially on the circumferential surface of a magnet support ring having protruding ribs, and has engagement steps formed on both end surfaces with a synthetic resin sheet affixed to the surface, and is attached to the adjacent permanent magnet. Assemble the engagement steps by overlapping each other between them, pass a non-magnetic bolt from the outer surface of the presser metal fitting, and screw it onto the magnet support ring, between the presser metal fitting and the magnet support ring, and between the end face of the permanent magnet and the end face of the presser metal fitting. Permanent magnet fixing device for eddy current reduction gear that forms a predetermined gap and fixes the device.