JPS58158830U - Electromagnetic brake device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

The figure is a longitudinal sectional view of one embodiment of this invention. In the figure, 1 is the rotating shaft, 2 is the brake disc, and 2B. 2C is a brake lining, 3 is a brake box, 3A is a fixed part, 5 is a movable core, 6 is a fixed core, 7 is a columnar core, 8
is a magnet coil, and 9 is a brake spring.

Claims (1)

[Scope of utility model registration request] A brake disc that is slidably fitted in the rotating shaft in the axial direction and rotates together with the rotating shaft, and a movable disc that is movable in the axial direction and that is non-rotatable, with one side facing the brake disc. an iron core, a brake box surrounding at least the brake disc; a fixed iron core in the shape of a cylinder with a bottom that is coupled to the brake box and whose open end faces the other side of the movable iron core; disposed inside the fixed iron core; a columnar core having one end facing the movable core and the other end facing the inner bottom surface of the fixed core, and cooperating with the fixed core to form a magnetic path; between the columnar core and the fixed core; A magnet coil is disposed on the inner periphery of the magnet coil and is energized when energized to cause the movable core to be attracted to the fixed core and the columnar core. A cylinder that is biased toward the plate side, presses the brake disc against the fixed part when the magnetic coil is not energized, and supports the columnar iron core so as to be substantially concentric with the fixed iron core on its inner periphery. Electromagnetic play device with shaped brake spring.