A method for assembly of a rotor of a gas turbine with a housing and a channel which diverges in a direction of flow includes axially displacing the rotor in the direction of flow. Then, an outer sealing ring whose minimum inside diameter is smaller than the maximum outside diameter of the rotor is axially displaced in the direction of flow.

A method for disassembly of a rotor, in particular the front rotor of a gas turbine with a housing and a channel which diverges in a direction of flow and in which the rotor is arranged, is disclosed. An embodiment of the method includes axially displacing an outer sealing ring that is radially opposite the rotor, and whose minimum inside diameter is smaller than the maximum outside diameter of the rotor, against the direction of flow. Then, the rotor is axially displaced against the direction of flow, in particular out of the housing. A method for assembly of such a rotor, as well as a tool for the same, is also disclosed.

A fixture for positioning an object relative to a beam, wherein the beam includes a web, is disclosed. The fixture includes a first portion including a first positioning face, a first contact face, and a first clamping face. Each of the first positioning face, the first contact face, and the first clamping face is movable in a first working direction. The fixture also includes a second portion including a second positioning face, a second contact face, and a second clamping face. Each of the second positioning face, the second contact face, and the second clamping face is movable in a second working direction opposite to the first working direction. When the fixture is installed on the beam, the first contact face and the second contact face abut each other, and the first clamping face and the second clamping face engage the web.

A magnet sensing portable autonomous device includes a platform. A plurality of wheel sets is coupled to the platform. A drive system is used for driving the plurality of wheels. An attachment mechanism is positioned on an underside of the platform for securing the device to a surface. A control board is used for controlling the operation of the device. In some embodiments, a drill spindle assembly is coupled to the platform. A drill feed assembly is coupled to the drill spindle assembly for raising and lowering the drill spindle assembly. A plurality of sensors are operable to sense one or more magnets disposed below the surface. A drive table is used for positioning the drill spindle assembly in an XY plane based on an output of said plurality of sensors.

An automated motorized device may be configured to move on a structure for use in assembling operations thereon. The automated motorized device may comprise a plurality of multifunction movement components, which may be attached to one or more movement assemblies. Functions of each multifunction movement component may comprise adhering and moving. The adhering function may be performed using sealing element, which may be used to create seal between corresponding multifunction movement component and structure. The moving function may be performed using a rolling element, which may be configured to allow rolling on the structure. In some instances, one or more of the multifunction movement components may be configured to also provide floating function, which may be performed, e.g., mechanically or pneumatically. In some instances, three non-floating multifunction movement components may be configured to form a triangle, to enable maintaining contact with the structure, including when traversing compound surfaces.

A process, using simple tools, is provided for the removal and replacement of lawn sprinkler units in a manner that facilitates alignment of threaded components and prevents entrance of lawn soil into water distribution piping that feeds the sprinkler units.

A magnet sensing portable autonomous device includes a platform. A plurality of wheel sets is coupled to the platform. A drive system is used for driving the plurality of wheels. An attachment mechanism is positioned on an underside of the platform for securing the device to a surface. A control board is used for controlling the operation of the device. In some embodiments, a drill spindle assembly is coupled to the platform. A drill feed assembly is coupled to the drill spindle assembly for raising and lowering the drill spindle assembly. A plurality of sensors are operable to sense one or more magnets disposed below the surface. A drive table is used for positioning the drill spindle assembly in an XY plane based on an output of said plurality of sensors.

A top drive includes a plurality of modules. The top drive includes a first fastening member and a second fastening member. The first fastening member and the second fastening member are configured to be removably coupled to connect a first module and a second module. In some embodiments, the top drive includes a third fastening member. The third fastening member is configured to be removably coupled to at least one of the first fastening member and the second fastening member, to connect the first module, the second module, and a third module. A tool for assembling or disassembling a top drive includes a fastening portion including an attachment mechanism configured to releasably couple the tool to a portion of a top drive. The tool includes a first housing including a recess disposed therein. The tool includes a first rod disposed at least partially within the recess.

The present disclosure is directed to a system and method for lifting and/or removing a rotor blade to and from a wind turbine. In one embodiment, the system includes an up-tower pulley mounted on an up-tower location of the wind turbine, first and second ground winches, a pulley cable from the first ground winch over the up-tower pulley and attached to the rotor blade, a guide line attached between an up-tower location of the wind turbine and the second ground winch, a guide pulley mounted on the guide line, and a guide cable from the guide line over the guide pulley to the rotor blade. Thus, the guide pulley is configured to move along the guide line during lifting and removing of the rotor blade so that the guide cable can control an orientation of the rotor blade relative to the tower during lifting and removing of the rotor blade.

Various embodiments include methods adapted to displace turbomachine components from a location within a turbomachine. In some embodiments, a method of displacing a turbine bucket from a turbomachine wheel slot using a displacement apparatus, includes: detachably engaging an engagement arm of the displacement apparatus to the turbine bucket, the engagement arm attached to a linear actuator coupled to a body of the displacement apparatus, and the engagement arm adapted to be actuated in a first axial direction by the linear actuator; contacting the turbomachine wheel with at least two contacting portions of the body of the displacement apparatus; and displacing the turbine bucket from a position within a slot of the turbomachine wheel in the first axial direction by linearly actuating the engagement arm with the linear actuator.