Abstract:
The present disclosure is directed to a gearbox repair apparatus for repairing a bore hole of a gearbox torque arm. In certain embodiments, the apparatus includes a mounting structure configured to mount to the torque arm. The mounting structure includes a through hole that aligns with the bore hole of the torque arm when mounted thereto. As such, when mounted to the torque arm, the mounting structure is configured to locate a boring bar at a center of the bore hole such that the boring bar is perpendicular to a face of the torque arm. Further, the mounting structure is configured to receive the boring bar through the aligned through hole and bore hole such that, when inserted therethrough, the boring bar is configured to machine and thus repair the bore hole.
Abstract:
The invention relates to a device (10) for operating in a water chamber (7) of a heat exchanger (1) comprising a wall (6) of substantially hemispherical shape and, at its upper portion, a tube plate (5) traversed by a plurality of vertical holes (4). The device comprises at least one rail (11) furnished with members for attachment on the bottom face of the tube plate (5) and supporting at least one trolley (15) that can be moved along the said rail (11) and fitted with a pendular lifting means (19) and a robotic arm (20) comprising an attachment base (30) furnished with members for coupling on the bottom face of the tube plate (5) and a drive means interacting with the lifting means (19) to draw the attachment base (30) against the tube plate (5).The invention applies more particularly to the steam generator of a pressurized water nuclear reactor.
Abstract:
During the manufacture an aircraft, a tool-carrying rail is removably attached to a rail-side surface of the aircraft with a vacuum cup. The tool-carrying rail includes a longitudinal axis to mount a tool. The vacuum cup is stiffened along a first axis transverse to the longitudinal axis of the tool-carrying rail and the vacuum cup is stiffened along a second axis parallel to the rail-side surface of the aircraft. To removably attach the tool-carrying rail, a perimeter of the vacuum cup is removably sealed to the rail-side surface of the aircraft against vacuum loss and a point on the rail is rigidly positioned with respect to a point on the rail-side surface of the aircraft. In addition, a vacuum source is coupled to a spatial volume occupying all of a space between the vacuum cup and the rail-side surface of the aircraft and the tool is slidably positioned along the longitudinal axis of the tool-carrying rail.
Abstract:
During the manufacture an aircraft, a tool-carrying rail is removably attached to a rail-side surface of the aircraft with a vacuum cup. The tool-carrying rail includes a longitudinal axis to mount a tool. The vacuum cup is stiffened along a first axis transverse to the longitudinal axis of the tool-carrying rail and the vacuum cup is stiffened along a second axis parallel to the rail-side surface of the aircraft. To removably attach the tool-carrying rail, a perimeter of the vacuum cup is removably sealed to the rail-side surface of the aircraft against vacuum loss and a point on the rail is rigidly positioned with respect to a point on the rail-side surface of the aircraft. In addition, a vacuum source is coupled to a spatial volume occupying all of a space between the vacuum cup and the rail-side surface of the aircraft and the tool is slidably positioned along the longitudinal axis of the tool-carrying rail.
Abstract:
The bushing replacement kit includes components for reaming out a bushing passage in a mechanical structure, and for installing a new bushing in the passage. The reamer portion of the kit includes a reamer guide, which is secured precisely and immovably to the seal sleeve of the passage, the reamer having a pilot shaft that fits precisely within the guide. The guide is held in place by a guide retaining plate, which is clamped to the mechanical structure over the guide. When the reaming operation has been completed, the ream is removed and a threaded bushing installation shaft is passed through the guide and bushing passage. A new bushing is placed at the back of the passage, with a bushing installer placed in back of the bushing. A threaded fastener is installed on the installation shaft and tightened to force the new bushing into its passage.
Abstract:
A conformal vacuum cup provides a machine tool attachment fitting usable in a flexible-track drill system. Using multiple, independently articulated stiffeners, the conformal vacuum cup conforms to the contour of complex aerostructure surface shapes. The individual stiffeners are decoupled from each other to some extent by grooves and slots molded into resilient overmolding material to support long-axis curving. Spacing pins employ a domed shape consonant with the elastic deformation of the workpiece surface under load. The pins employ a hard material to prevent particle embedment in use and to control position tolerance for drill heads and other tools traveling on the flexible track. Partial holes in each vacuum cup are blocked by diaphragms. Interconnection from a vacuum system manifold to the vacuum cups can be realized by penetrating the diaphragms and inserting barbed fittings connected by vacuum tubing.
Abstract:
A conformal vacuum cup provides a machine tool attachment fitting usable in a flexible-track drill system. Using multiple, independently articulated stiffeners, the conformal vacuum cup conforms to the contour of complex aerostructure surface shapes. The individual stiffeners are decoupled from each other to some extent by grooves and slots molded into resilient overmolding material to support long-axis curving. Spacing pins employ a domed shape consonant with the elastic deformation of the workpiece surface under load. The pins employ a hard material to prevent particle embedment in use and to control position tolerance for drill heads and other tools traveling on the flexible track. Partial holes in each vacuum cup are blocked by diaphragms. Interconnection from a vacuum system manifold to the vacuum cups can be realized by penetrating the diaphragms and inserting barbed fittings connected by vacuum tubing.
Abstract:
A cable cup can be mounted in an optimal location on the wall of an otherwise inaccessible duct, so that, above all, inlets into the duct are not obstructed. A mounting device has a carriage that is movable in the longitudinal direction of the duct. A supporting unit for the cable cup is mounted on the carriage. A carrier is pivotally connected to the carriage via a longitudinal shaft. A directing unit supports the cable cup and is movable toward the wall of the duct. A drilling device and a screwdriver device are longitudinally movable on the shaft. By pivoting the support and thus the directing unit, the cable cup is fixed in the desired position on the wall, a hole is drilled through the cable cup and into the wall of the duct and a screw is screwed into the hole by the screwdriver device.
Abstract:
A remotely controlled tool for working inside a steam generator hemispherical head on tubes and tube holes and moving along orthogonal x and y axes to conform to the tube layout pattern in the tubesheet.