Electromagnetic hammer with mobile ferromagnetic weight

Details Electromagnetic hammer with mobile ferromagnetic weight Electromagnetic hammer with mobile ferromagnetic weight

E - Fixed Constructions

02

D

E02D 7/06 (2006.01)

Patent

CA 2295873

The invention concerns an electromagnetic hammer with mobile ferromagnetic weight, comprising a tube (1) designed to rest via an anvil on an element to be driven in (50), bearing a peripheral winding (2), a weight (14) received sliding in the tube (1), and electric powering means connected to the winding (2) to excite the latter to generate an electromagnetic field for lifting the weight. The weight is urged to strike the anvil by the action of its own mass when the winding is no longer excited, the winding being made by wound package around the tube (1), and the tube being made of a non-magnetic material and comprising means (3, 4, 5, 6) for picking up axial load, and transmitting this load to the anvil (13) when the weight (14) goes up again. The powering means comprise a flywheel associated with a rotating motor and an alternator.

Marteau électromagnétique à masse ferromagnétique mobile, comprenant un tube (1) destiné à reposer par l'intermédiaire d'une enclume sur un élément à enfoncer (50), portant un bobinage périphérique (2), une masse (14) reçue à coulissement dans le tube (1), et des moyens d'alimentation en énergie électrique reliés au bobinage (2) pour exciter celui-ci de façon à engendrer un champ électromagnétique de soulèvement de la masse, la masse venant frapper l'enclume sous l'action de son propre poids lorsque le bobinage n'est plus excité, le bobinage (2) étant réalisé par enroulement autour du tube (1), et le tube étant en matériau amagnétique et comprenant des moyens (3, 4, 5, 6) de reprise des efforts axiaux, et de transmission de ces efforts à l'enclume (13) lors de la remontée de la masse (14). Les moyens d'alimentation comprennent un volant d'inertie associé à un moteur rotatif et à un alternateur.

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