JPS5884430U

JPS5884430U - Disc type electromagnetic brake

Info

Publication number: JPS5884430U
Application number: JP18068881U
Authority: JP
Inventors: 本庄　敏雄
Original assignee: 三菱電機株式会社
Priority date: 1981-12-03
Filing date: 1981-12-03
Publication date: 1983-06-08

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来の円板形電磁ブレーキの一部断面図、第２
図はこの考案の一実施例を示す一部断面図である。図中
、１ａは制動面、２は回転子軸、３はブレーキ歯車、４
はブレーキ板、４ａは摩擦部材、５は固定鉄心、５ｄは
貫通孔、６は案内部材、７は可動鉄心、７ａは肉厚部、
７ｃは離脱防止手段、８はブレーキコイル、１０は弾性
体、１２は被制動回転体である。なお、図中同一符号は
同一または相当部分を示す。Figure 1 is a partial cross-sectional view of a conventional disc-shaped electromagnetic brake;
The figure is a partially sectional view showing an embodiment of this invention. In the figure, 1a is a braking surface, 2 is a rotor shaft, 3 is a brake gear, and 4 is a braking surface.
is a brake plate, 4a is a friction member, 5 is a fixed core, 5d is a through hole, 6 is a guide member, 7 is a movable core, 7a is a thick part,
7c is a separation prevention means, 8 is a brake coil, 10 is an elastic body, and 12 is a rotary body to be braked. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

(1) A movable core that is attracted to the fixed core when the fixed core is energized and allows the rotation of the rotary body to be braked, and a disc-shaped braking member that is attracted to the fixed core when the fixed core is energized, and which acts as a disk-shaped braking member via the movable core when the fixed core is deenergized. an elastic body that presses against a braking surface to brake the rotary body to be braked; and a guide member that has one end coupled to the fixed iron core and a protrusion at the other end that guides movement of the movable iron core in the axial direction. A disk-shaped electromagnetic brake, characterized in that a detachment prevention means for preventing detachment of the guide member from the fixed core is provided on a portion of the movable core facing the protruding end surface of the guide member.

(2) The disk-shaped electromagnetic brake according to claim 1, wherein the detachment prevention means is a pair of recesses formed in the end face of the thick portion of the movable iron core.