Ringspann Gmbh

Bischoff Technologie-management Gmbh

Bischoff Industriebremsen Gmbh

Hartmut Bischoff

Hans-Joachim Polack

An electromagnetic active brake which is de-energized in the brake standby state, including&#x2014;a brake body (), &#x2014;a brake device with at least two opposing brake shoes () which are spaced from a component to be braked in the de-energized state of the active brake, &#x2014;and an electromagnet () which is arranged in the brake body () and the armature () of which interacts with a brake lever (). The armature () of the electromagnet () is rigidly connected to a spring compressor () which is guided in the brake body () and which is moved by the armature () in the axial direction of the armature () when the electromagnet () is energized and in this manner clamps a spring () against an abutment () that interacts with the brake lever () and is arranged in an axially adjustable manner in the direction of the path of the spring compressor (). The active brake according to the invention is highly energy-saving and thus economical.

Electromagnetic active brake

The invention relates to a solenoid actuator, consisting of a magnet body (), a magnet armature, a cover () closing the space in which the magnet armature travels back and forth, at least one electric coil (), which is arranged in the magnet body () concentrically around the axis of travel of the magnet armature, and means () for power transmission, which are in operative connection with the magnet armature and protrude out of the solenoid actuator. According to the invention, the magnet armature of the solenoid actuator is an axially guided annular magnet armature (), and the means () for power transmission are arranged coaxially around the axis of travel of the annular magnet armature (). This has the advantage that the solenoid actuator allows long switching paths and a small construction, along with high tightening and holding forces. This also results in the up to 100% higher holding force of the solenoid, making it particularly suitable for the actuation of braking and clamping equipment for rods and cables.

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Stassfurt, Germany

Hartmut Bischoff