JPS6255739U

JPS6255739U -

Info

Publication number: JPS6255739U
Application number: JP14563785U
Authority: JP
Priority date: 1985-09-26
Filing date: 1985-09-26
Publication date: 1987-04-07
Also published as: JPH0219619Y2

Description

[Brief explanation of the drawing]

第１図は、本考案の電磁クラツチを示した断面
図、第２図は、本考案における防振ゴムの取付状
態を示した要部断面図、第３図は、アーマチユア
吸引状態を示す要部断面図、第４図は、本考案に
おけるアーマチユアの吸引時の変化と防振ゴムの
圧縮反力の関係を示したグラフ、第５図は、アー
マチユアの吸引速度と変位との関係を示したグラ
フ、第６図、第７図は、測定装置を示したもので
、第６図は、ストツパープレート吸着時の振動加
速度の測定装置の説明図、第７図は、ストツパー
プレートの吸着音の測定を行う装置の説明図、第
８図は、音圧レベルと周波数の関係を示したグラ
フ、第９図は、従来の音圧レベルと周波数の関係
を示したグラフ、第１０図は、従来の電磁クラツ
チを示した断面図、第１１図は、第１０図におけ
るアーマチユアの吸引時における変位と吸引速度
の関係を示したグラフである。１……固定部、２……ラジアル軸受、３……ロ
ータ、４……電磁装置、５……主軸、６……ハブ
、７……板バネ、８……リング状アーマチユア、
９……コイル、１０……防振ゴム、１０ａ……円
筒部、１０ｂ，１０ｃ……フランジ、１１……ス
トツパープレート、１２……ストツパーピン部材
、１２ａ……逆円錐台形状頭部、１２ｂ……段付
部。 Fig. 1 is a sectional view showing the electromagnetic clutch of the present invention, Fig. 2 is a sectional view of the main part showing the mounting state of the vibration isolating rubber in the invention, and Fig. 3 is a main part showing the armature suction state. A cross-sectional view, FIG. 4 is a graph showing the relationship between the change in the suction of the armature and the compression reaction force of the anti-vibration rubber in the present invention, and FIG. 5 is a graph showing the relationship between the suction speed and displacement of the armature. , Fig. 6 and Fig. 7 show the measuring device. Fig. 6 is an explanatory diagram of the measuring device for the vibration acceleration when the stopper plate is adsorbed, and Fig. 7 is the measurement device for measuring the vibration acceleration when the stopper plate is adsorbed. 8 is a graph showing the relationship between sound pressure level and frequency; FIG. 9 is a graph showing the relationship between conventional sound pressure level and frequency; FIG. 10 is a graph showing the relationship between conventional sound pressure level and frequency. FIG. 11 is a cross-sectional view showing the electromagnetic clutch shown in FIG. 10, and is a graph showing the relationship between the displacement of the armature in FIG. 10 during suction and the suction speed. DESCRIPTION OF SYMBOLS 1... Fixed part, 2... Radial bearing, 3... Rotor, 4... Electromagnetic device, 5... Main shaft, 6... Hub, 7... Leaf spring, 8... Ring-shaped armature,
9... Coil, 10... Vibration isolating rubber, 10a... Cylindrical portion, 10b, 10c... Flange, 11... Stopper plate, 12... Stopper pin member, 12a... Inverted truncated conical head, 12b... ...Stepped section.

Claims

[Claims for Utility Model Registration] 1. On the side surface of the rotor, an armature that is attracted by the energization of an electromagnet is elastically supported on the hub of the driven shaft via a leaf spring, and a stopper plate is attached to the hub together with the leaf spring. In the electromagnetic clutch in which a plurality of vibration isolating rubbers are arranged near the periphery of the stopper plate, the vibration isolating rubber includes a cylindrical portion and flanges formed at both ends of the cylindrical portion. One of the flanges is held between the armature and the stopper plate, and the shaft portion of the stopper pin member disposed on the stopper plate and having an inverted truncated conical head is inserted into the through hole of the cylindrical portion and its tip is inserted. An electromagnetic clutch characterized in that the is fixed to the armature. 2. The electromagnetic clutch according to claim 1, which uses a stepped rivet having a flange portion on its head as the stopper pin member.