JPH0484838U

JPH0484838U -

Info

Publication number: JPH0484838U
Application number: JP12635090U
Authority: JP
Priority date: 1990-11-30
Filing date: 1990-11-30
Publication date: 1992-07-23

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示すデイスクブレ
ーキの正面図、第２図は第１図の−矢視断面
図、第３図は第１図の−線断面図、第４図は
、第１図の−線断面図、第５図は従来技術の
デイスクブレーキの断面図、第６図は、本考案の
実施例とし考えられるエレベータの説明図である
。３……デイスク、４……アーマチユア、５……
ガイドピン、６……ライニング、７……スプライ
ンボス、８……コイル、９……コア、１１……制
動ばね、１２……ばね受け部材、１３……ボルト
、１４……調整ナツト、２０……円孔。 Fig. 1 is a front view of a disc brake showing an embodiment of the present invention, Fig. 2 is a sectional view taken along the - arrow in Fig. 1, Fig. 3 is a sectional view taken along the line - - in Fig. 1, and Fig. 4 is 1, FIG. 5 is a sectional view of a conventional disc brake, and FIG. 6 is an explanatory view of an elevator considered as an embodiment of the present invention. 3...disc, 4...armature, 5...
Guide pin, 6... Lining, 7... Spline boss, 8... Coil, 9... Core, 11... Braking spring, 12... Spring receiving member, 13... Bolt, 14... Adjusting nut, 20... ...Circular hole.

Claims

[Claims for Utility Model Registration] 1. A rotary shaft of a rotary machine to be braked is fitted and a spline boss on the outer periphery, an inner disk that engages with the spline and is movable in the axial direction, and is arranged to face the inner disk. , an electromagnetic brake equipped with an armature that is constantly applied with a force directed in the axial direction by a plurality of brake springs, and is attracted in the opposite direction against the force of the brake springs when the electromagnetic coil is energized. An electromagnetic disc brake, characterized in that the brake spring is built into the hole, and means for adjusting the pressing force of the brake spring is provided. 2. In claim 1, the adjusting means includes a circular hole provided in the core to accommodate the braking spring, a threaded hole that is concentric with and passes through the circular hole, and a bolt that is movable in the axial direction. An electromagnetic disc brake configured to engage a spring receiving member pressed by the brake spring fixed to a bolt so that the pressing force of the brake spring can be adjusted. 3. The electromagnetic disc brake according to claim 1, wherein a plurality of said adjustment means are provided and arranged point-symmetrically with respect to said rotation axis. 4. The electromagnetic disc brake according to claim 1, wherein the number of adjustment means is less than half of the number of brake springs, and is arranged point-symmetrically with respect to the rotation axis. 5. The elevator system according to claim 1, wherein the electromagnetic disc brake is used in an elevator hoisting machine.