JPS58165341U

JPS58165341U - Magnetic powder electromagnetic clutch

Info

Publication number: JPS58165341U
Application number: JP6399782U
Authority: JP
Inventors: 英昭松井; 清仁村田
Original assignee: トヨタ自動車株式会社
Priority date: 1982-04-30
Filing date: 1982-04-30
Publication date: 1983-11-04

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 drawings]

第１図は本考案の一実施例である磁粉式電磁クラッチの
縦断面図である。第２図は第１図のクラッチにおける要
部を拡大して示す図である。第３図乃至第６図は上記ク
ラッチにおける磁粉の挙動を説明するための説明図であ
る。第６図及び第７図は従来のクラッチにおける磁粉の
挙動を示す説明図であって、第６図は第４図に、第７図
は第５図にそれぞれ対応するものである。１４：ヨーク（駆動部材）、１６：励磁コイル、１８：
内側摩擦面、２８二ロータ（被駆動部材）、３０：外側
摩擦面。３２：ギャップ、３６：磁粉。FIG. 1 is a longitudinal sectional view of a magnetic particle type electromagnetic clutch which is an embodiment of the present invention. FIG. 2 is an enlarged view of the main parts of the clutch shown in FIG. 1. FIGS. 3 to 6 are explanatory diagrams for explaining the behavior of magnetic particles in the clutch. 6 and 7 are explanatory diagrams showing the behavior of magnetic particles in a conventional clutch, with FIG. 6 corresponding to FIG. 4 and FIG. 7 corresponding to FIG. 5, respectively. 14: Yoke (driving member), 16: Excitation coil, 18:
Inner friction surface, 28 Two rotors (driven member), 30: Outer friction surface. 32: Gap, 36: Magnetic powder.

Claims

[Scope of utility model registration request]

A driving member having a cylindrical shape and rotating around a center line, a driven member provided inside the driving member concentrically with the driving member and rotatable relative to the driving member, and an excitation coil provided on the driving member. The excitation of the excitation coil causes the gap between the inner friction surface of the drive member and the outer friction surface of the driven member to be filled with magnetic particles, thereby controlling the rotation of the drive member to the driven member. In a magnetic particle type electromagnetic clutch of a type that transmits power to the user, the outer friction surface of the driven member has a shape in which the diameter is large at the center in the width direction and decreases toward both ends;
A magnetic particle type electromagnetic clutch characterized in that the inner friction surface of the drive member is a cylindrical surface having the same diameter over the entire width.