Schenck Rotec Corporation

Christian Muth

Martin Rogalla

Karlheinz Timtner

Juergen Doelp

Jürgen Dölp

Kuno Ebert

Gottfried Gross

Karlheinz Dr Timtner

A balancing device for installing a counterweight in a specified shaft balancing region paired with a balancing plane includes a securing device which can be controlled via a control unit. The securing device has a first and a second receiving area for a counterweight or the shaft at a free end. A slot is arranged on the balancing device such that the balancing device can be moved along the shaft in the axial direction. The balancing device has a sensor for ascertaining the position of the balancing device relative to the shaft. The balancing device further includes a display unit which is connected to the control unit so as to exchange data and which is designed such that the position of the balancing device relative to the balancing region can be displayed.

Method for installing a counterweight on a shaft, and a device for this purpose

A protective housing for a testing, measuring or production device has a protective element, which seals a housing opening and is held and guided by guide devices and can be moved into an open position by a drive device. The guide devices have arched sections which are outwardly curved forward and extend backwards in a straight line on an upper side of the protective housing. The protective element includes two flexurally stiff rectangular plates, which have straight longitudinal sides and a curve approximating the arched sections and are connected to each other on a longitudinal side via a hinge. The guide devices include a number of guide elements guided on a guide rail, wherein a respective guide element is arranged on the hinge and further guide elements are arranged on both sides of the hinge. The drive device drives the rearmost guide element via two traction transmissions, which have traction mechanisms running parallel to the straight section of the guide devices.

Protective housing for a testing, measuring or production device

Disclosed is a device for attaching corrective weights to a cylindrical outer surface of a rotor by means of electric resistance pressure welding, including an electrode () having a contact surface () for application against the rotor and comprising a supporting body () and a swinging body () having oppositely facing, congruent, spherical bearing surfaces () suitable for abutting engagement with each other. The swinging body () is movably secured to the supporting body () such as to be able to perform limited swinging movements to all sides. A spring () arranged between the supporting body () and the swinging body () enables a gap to be produced between the spherical bearing surfaces (), whereby the contact surface () is in a position to align itself relative to the opposite surface of the rotor prior to pressure application by the welding force.

Device for attaching corrective weights by electric resistance pressure welding

To correct an unbalance of rotors, a method and a device are proposed by means of which a corrective weight () is adapted to be welded to a rotor () by means of an electric welding device (). The device comprises a robot () with a jointed arm () mounting the electric welding device (). Arranged within reach of the jointed arm () is an unbalance measuring station () for measuring the amount of unbalance of the rotor () with an electronic computer which computes a corrective weight () to be attached to the rotor () for unbalance correction and transmits control data to a control device () of the robot (). Under robot control, the welding device () picks the computed corrective weight () from a magazine () arranged within reach of the jointed arm () and welds it to the rotor () in the unbalance measuring station (). During the welding operation the rotor () takes support on a first supporting device () and the welding device () on a second supporting device ().

Method for unbalance correction of rotors by applying corrective weights by welding

A device for feeding and attaching corrective elements for unbalance correction on propeller shafts in a balancing machine includes an attachment device positionable longitudinally to the rotor axis, with a receptacle for receiving a corrective element attachable to the outer rotor circumference. Associated with the balancing machine is a supply unit supplying corrective elements measured for the individual unbalance correction. A feeding device feeds supplied corrective elements to the attachment device and includes a transfer shuttle for performing reciprocating movements between the supply unit and the attachment device on a guideway parallel to the rotor axis via a controllable motion drive mechanism. The transfer shuttle includes a loading device for performing an active loading operation by displacing a corrective element from a receptacle of the transfer shuttle into the receptacle of the attachment device, the loading device being driven via the controllable motion drive mechanism of the transfer shuttle.

Method and device for feeding and attaching corrective elements for unbalance correction, in particular in a balancing machine

The chuck includes a centering clamping member having a variable diameter, a radially extending clamping surface, which is adjacent to the centering clamping member, a movable clamping element, a first spring element, via which the centering clamping member can be moved into a clamping position, a second spring element, via which the clamping element can be loaded with a first force, a third spring element, via which the clamping element can be loaded with a second, higher force, and an axially movable actuating device by which the centering clamping member and the clamping element can be moved into a release position against the force of the first and third spring elements.

Method and device for centering and clamping a workpiece in a balancing machine

The method includes the steps of positioning a workpiece with a centering surface on a centering clamping member of a chuck, pressing a radial contact surface of the workpiece against a clamping surface of the chuck with a first force, centering the workpiece by clamping the centering clamping member against the centering surface, and pressing the radial contact surface of the workpiece against the clamping surface of the chuck with a second force, the second force being greater than the first force.

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Fischbachtal, Germany

Christian Muth