Centre De Recherche Industrielle Du Quebec

Paul Michaud

Adrian Barbulescu

Rodrigue Boulet

Luc Drolet

R&eacute;al Larochelle

A apparatus for disassembling a threaded bolt and nut assembly wherein the bolt is initially extended through an opening provided on a structure and being secured thereto with the nut axially mounted on a threaded rod of the bolt. The apparatus comprises a tool body, a nut gripping element such as a socket mounted for rotation on a working portion of the tool body, the socket being provided with a bore axially extending theretrough. The apparatus further comprises a rotary actuator mounted on the tool body and operatively coupled to the socket for imparting torque to the mounted nut in a direction allowing release of the nut from the secured bolt. The apparatus also comprises a pushing device such as a pneumatic power hammer mounted on the tool body and provided with an elongated push member having a working end being axially displaceable within the bore, and a linear actuator mounted on the tool body and operatively coupled to the hammer for selectively displacing the push member between a retracted position allowing the release of the mounted nut and an extended position where the bolt is at least partially withdrawn from said opening upon thrust of the working end of the push member. A pneumatic control system is provided for controlling the rotary actuator and the linear actuator. The apparatus can be provided with a base for supporting the tool body and a holder connecting the base to the tool body while allowing transversal displacement thereof on the holder. A first embodiment uses a base provided with a rotary arm, while a second embodiment uses a base provided with a displaceable carrier mounted on a rail.

Bolt and nut disassembling apparatus

A displaceable working platform comprising a main frame having stabilizing extension posts secured thereto for immovably securing the main frame to surrounding surfaces. A displaceable platform is slidingly secured to the main frame. The platform is displaceable on the main frame from a storage position to a working position. An extensible boom is secured on a rotating support base which is secured to the displaceable platform. The boom has a working free end at which a working element is secured. The rotating support base is rotatable by a motor and a boom is extensible by an hydraulic system which is also provided to regulate the angular position of the boom by controlling hydraulic pistons connected between the boom telescopic sections, and the rotating support base.

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Ancienne Lorette, Canada

Paul Michaud