Abstract: The subject matter of the present invention relates to a system for the optical determination of correction planes in rotating elements, used in the process of balancing, in particular in diagnostic devices equipped with a system which has at least one video camera (K), at least one line projector (RL), a monitor screen (M) and a computer (P) which controls individual component elements of the system, wherein the video camera (K) cooperates with the line projector (RL) while projecting a view of the rotating element (EW) on the monitor screen (M) together with an image of a line (L) projected by means of the line projector (RL).

Abstract: A passive dynamic inertial rotor balance system including a plurality of balancing members fitted onto a rotor shaft at locations of predicted maximum shaft modal deflection. Each of the balancing members has at least one chamber and located within the at least one chamber is a plurality of movable weights and a viscous fluid. As the shaft accelerates toward an unbalance point, the weights move within the at least one chamber to a location which is opposite from the unbalance point. The viscous fluid provides damping for the movable weights to prevent excess movement within the chamber and to provide lubrication thereof. A system for self-correcting an unbalance of a turbomachinery rotor during rotation of the rotor and a method for balancing a rotor in a turbomachinery is also provided.

Abstract: Disclosed is a device for the attachment of correction weights for unbalance correction to a rotary body, comprising a supply unit (15) for supplying individual correction weights, an attachment device (2) for applying the correction weights to the rotary body and including a first receptacle (6) for a first correction weight and a second receptacle (7) for a second correction weight, a feed unit (16) for feeding supplied correction weights to the receptacles (6, 7).

Abstract: The present invention relates to balancing of a rotating anode. In order to provide a facilitated balancing of a rotating anode allowing balancing also in a state where the rotating anode disk is mounted inside an X-ray tube, an adjustment device (54) for balancing a rotating anode disk in an operating state is provided. The adjustment device comprises at least a first plurality (72) of balancing elements (74), wherein the balancing elements are attached to at least one circular ring structure (76), and wherein the balancing elements each comprise a balancing portion (80) mounted to the circular ring structure via a bending portion (82).

Abstract: An active balancing system for rotating machinery is provided which is light weight, solid state and powered by radiant energy. One or more balance rings coupled to the rotating machinery each have balancing elements which are moved to a selected position by actuators whose operation is controlled according to measured vibration resulting from imbalance of the machinery. The actuators are powered by an electrical energy generating device, such as a photo cell or a photovoltaic element, which is coupled to the machinery and located across an air gap from a source of radiant energy such as an array of light emitting diodes.

Abstract: An apparatus for processing a tire-wheel assembly comprising a single-cell workstation including a plurality of sub-stations. The plurality of sub-stations includes a weight application sub-station, and an audit balancing sub-station. The apparatus also includes a tire/wheel transporting device positioned within reach of all of the plurality of sub-stations. A method is also disclosed.

Abstract: A tire measurement system includes a computer with various memory/media elements for storing raw and transformed tire measurement data (e.g., a data set of measured radial or lateral run-out values) as well as software in the form of computer-executable instructions, which are executed by a processor to filter selected run-out values within the obtained data set that spike above adjacent measurements, identify selected ones of the filtered run-out values that lie on a convex hull surrounding the entire set of values, and perform interpolation of the identified selected ones of the run-out values that lie on the convex hull to obtain a final data set of filtered run-out measurements. Similar steps can be performed on an inverted data set to better detect sidewall deformation features such as sidewall depressions.

Abstract: Disclosed is a method for correcting an unbalance on a vehicle wheel including a rim and a tire, which includes measuring the unbalance of the vehicle wheel in an unbalance measuring station, rotating the vehicle wheel in the unbalance measuring station into a defined angular position and transmitting the defined angular position and the correction data to a control device for controlling an applicator head of a balancing station, transferring the vehicle wheel from the unbalance measuring station to the balancing station by means of a gripper arranged on a handling device and centrally locating and holding it in the balancing station, loading a corrective element which has one side coated with an adhesive and exhibits the weight amount determined in the unbalance measuring station into the applicator head of the balancing station, and rotating the vehicle wheel and/or the applicator head in dependence upon the control device in such a way that the corrective element in the cavity of the wheel rim reaches the

Abstract: A rotating object dynamic balancing system and method for balancing a rotating object including a shaft by using centrifugal force on a plurality of weighted masses traveling along at least one race. The rotating object dynamic balancing system has an inner body, an outer body, a fastening body or fastening body, and a plurality of weighted masses. The inner body has a hollow interior area and an aperture in communication with the interior area and adapted to receive the shaft. The outer body has a hollow interior area defined therethrough, and at least one radial race defined in the interior area. The outer body is attachable to the inner body. The fastening body has a hollow interior area, and is configured to be received into the interior area of the inner body. The interior area of the fastening body assembly is adapted to engage with the shaft received through the inner body thereby securing the rotating object dynamic balancing system to the rotating object.

Abstract: A system for balancing an aircraft propeller system receives a vibration signal from the aircraft propeller system and determines whether the vibration signal indicates a transient vibration condition. If it is determined that the vibration signal does not indicate a transient condition, the system enables a balance correction controller. The controller generates a balance correction signal based on the vibration signal, and balances the aircraft propeller system in response to the balance correction signal if the balance correction controller is enabled.

Abstract: For compensating unbalance of vehicle wheels, adhesive weight elements (8) are positioned and pressed onto a determined compensation surface (17) on a wheel (7) using a balancing head (1) and a program-controlled handling device (9). The adhesive weight elements (8) in the form of an endless weight strand (5) are fed by a feed device (2) arranged on the balancing head (1) to a following roll-on roller (3) that presses the beginning of the endless weight strand (5) onto the beginning of the compensation surface (17) and thereafter rolls along thereon. A length cut-off device (4) is provided in or before the roll-on roller (3) and cuts-off the endless weight strand (5) of the adhesive weight elements (8) in a determined length.

Abstract: A balancing system and method for reducing imbalance in a rotatable member of a machine is provided. The system includes a plurality of vibration sensors positioned about a stationary portion of the machine, a controller assembly communitively coupled to the plurality of vibration sensors, and a balancing assembly coupled to the rotatable member, said balancing assembly configured to wirelessly communicate with said controller assembly, said balancing assembly configured to modify the weight distribution of the rotatable member in response to a command wirelessly transmitted from the controller assembly. The controller assembly is configured to receive data from the plurality of vibration sensors and determine an imbalance in the rotatable member using the received data.

Abstract: Shaft trim balancing devices, related systems and methods are provided. In this regard, an representative device for trim balancing a rotatable shaft includes: an intermediate section being annularly shaped and having terminating ends spaced from each other in an uncompressed state of the device; and first and second sets of counterweights extending longitudinally from opposing sides of the intermediate section.

Abstract: An eddy-current actuated balancer includes a barrel having a locating wall at one end thereof; two balancing wheels mounted around the barrel and carrying a respective counterweight at the border, a washer set between the balancing wheels, an elastic ring and a lock ring and a pulsed magnetic field generator mounted on each balancing wheel. The balancing wheels, the washer and the elastic ring are clamped between the locating wall of the barrel and the lock ring. Each pulsed magnetic field generator is controlled to generate a pulsed magnetic field acting upon the associating balancing wheel during its rotation for inducing an eddy current that causes the associating balancing wheel to make an angular displacement relative to the barrel for balance adjustment.

Abstract: The present invention relates to an improved rotor balancing system which allows for fine tune onsite adjustment for turbomachinery. The rotor balancing system comprises a rotor element having a row of locating slots and a device for reducing windage effects caused by the locating slots and protruding anti-rotation pins. In a preferred embodiment, the device for reducing windage effects comprises at least one balancing ring which partially or fully covers the locating slots and internal slots for engaging and disengaging that does not protrude outbound of the ring. Each balancing ring is preferably provided with two integrally formed anti-rotation members for engaging the locating slots. Each balancing ring is also preferably provided with a slot in a weighted portion of the ring for receiving a tool for positioning the balancing ring in a desired position. A method for positioning the balancing ring on a rotor element using the slot and the tool is also described herein.

Abstract: Disclosed is a method for correcting an unbalance on a vehicle wheel including a rim and a tire, which includes measuring the unbalance of the vehicle wheel in an unbalance measuring station, rotating the vehicle wheel in the unbalance measuring station into a defined angular position and transmitting the defined angular position and the correction data to a control device for controlling an applicator head of a balancing station, transferring the vehicle wheel from the unbalance measuring station to the balancing station by means of a gripper arranged on a handling device and centrally locating and holding it in the balancing station, loading a corrective element which has one side coated with an adhesive and exhibits the weight amount determined in the unbalance measuring station into the applicator head of the balancing station, and rotating the vehicle wheel and/or the applicator head in dependence upon the control device in such a way that the corrective element in the cavity of the wheel rim reaches the

Abstract: A balance ring for a component (1) rotating about a rotation axis (3), for example a tool holder for a rotating tool or else a machine spindle or the like, is proposed. The balance ring has an annular body (11) which is rotationally symmetrical with respect to an axis of rotational symmetry, a guide arrangement (13) guiding the annular body (11) in a radially movable but axially fixed manner on the component (1) with an axis of rotational symmetry essentially parallel to the rotation axis (3) of the component (1), and a plurality of adjusting elements (21) arranged in the circumferential direction of the annular body (11), preferably at equal angular distances from one another, radially supported between the annular body (11) and the component (1) and having a variable radial supporting length. The guide arrangement may be designed as an axially extending spring link arrangement or else as spring webs extending in the circumferential direction.

Abstract: An apparatus for dispensing a predetermined amount of adhesive weighted tape includes a controller adapted to receive a request for a desired amount of adhesive weighted tape and an elongated track member adapted to receive a supply of the adhesive weighted tape. A sensor is mounted adjacent a second end of the track member. The sensor in communication with the controller is operable to transmit a signal to the controller corresponding to a measured amount of weighted tape passing thereby. A motive apparatus in communication with the controller is adapted to move the weighted tape from a first end to the second end of the track member in response to the signal from the sensor. A cutting member disposed adjacent the second end of the track member is in communication with the controller and is adapted to cut the weighted tape in response to the signal from the sensor.

Abstract: The invention relates to a method and an apparatus for the unbalance compensation of vehicle wheels in which adhesive weight elements (8) are positioned on at least one determined compensation surface (17) within a disk wheel (7) and are there pressed-on, with a balancing head (1) and a program-controlled handling device (9). The invention is characterized in that the adhesive weight elements (8) in the form of an endless weight strand (5) are fed by a feed device (2) arranged on the balancing head (1) to a following roll-on roller (3). In that regard, the balancing head (1) is arranged stationarily or is connected by a frictional force transmitting connection with an execution arm (10) of the handling device (9), whereby a roll-on roller (3) of the balancing head (1) presses the beginning of the endless weight strand (5) onto the beginning of the compensation surface (17) and thereafter rolls along thereon.

Abstract: A method and a machine for balancing vehicle wheels with weights (18), the method comprising stages of: using a video camera (5, 6, 206) to frame a portion of a surface of a hub (101) of a wheel on which a weight (18) is to be applied, locating, in images of the hub (101) taken by the camera (5, 6, 206), at least a balancing plane (E1, E2) which is perpendicular to a rotation axis (A) of the wheel, piloting at least a pick-up device (8, 9, 209) such as to direct the at least a pick-up device (8, 9, 209) onto a point (P1, P2) of the hub (101) belonging to the balancing plane (E1, E2), detecting, by means of the pick-up device (8, 9, 209) characteristic geometric parameters of the hub (101) at the balancing plane (E1, E2), measuring an imbalance of the wheel, calculating, by means of an electronic calculator (4, 204) an entity of at least a weight (18) to be applied to the hub (101) at the balancing plane (E1, E2), and also calculating an angular position (T1, T2) of the weight (18) in the balancing plane (E1,

Abstract: Disclosed herein is a rotor to stator alignment method. The alignment method includes, positioning a plurality of eccentric rings between the rotor and a stator, and rotating at least one of the plurality of eccentric rings relative to the stator thereby reducing eccentricity of the rotor with the stator.

Abstract: Provided herein is an apparatus for detecting vibrations in a machine tool having a rotor portion (2) which is provided with tool members (5) and defines an axis of rotation (2a), the apparatus comprising a sensor assembly (3) which is able to rotate together with the rotor portion (2) and is designed to issue signals correlated to the vibrations, and a supporting and amplification device (6) for supporting the sensor assembly (3) and for amplifying the vibrations, which is set between the sensor assembly (3) and the rotor portion (2) and has a rotational asymmetry about the axis of rotation (2a) for any angle smaller than a full circle.

Abstract: A method for balancing a spindle assembly for compensating for dynamic imbalance of the spindle assembly. The method uses a plurality of adjustable eccentric rings for dynamically balancing the spindle assembly. The plurality of eccentric rings are preassembled with the spindle assembly and the method includes the steps of measuring an imbalance of a combination of the spindle assembly and the eccentric rings preassembled with the spindle assembly and balancing the spindle assembly by adjusting the eccentric rings based upon a measured imbalance of the combination of the spindle assembly and the eccentric rings.

Abstract: An image recording apparatus for recording an image on a sensitive material mounted on a drum by emitting light beams to the sensitive material. The apparatus includes a cylindrical drum for supporting the sensitive material mounted peripherally thereof, a drive mechanism for rotating the drum with a rotary shaft disposed on an axis of the drum, guide members formed in opposite end surfaces of the drum and extending circumferentially about the rotary shaft, a pair of counterweights movable along each of the guide members, a moving mechanism for engaging each of the counterweights and moving relative to the drum, thereby to move the counterweight along the guide member, and a fixing mechanism for fixing the counterweight to the guide member in time of image recording.

Abstract: A computed tomography apparatus has a gantry that is rotatable around a rotational axis and a detector permanently disposed relative to the gantry, for determining an unbalanced mass of the gantry and a calculating unit for calculating the location or locations at the gantry at which a weight or at which weights should be arranged for compensating the unbalanced mass.

Abstract: The present invention relates to an improved rotor balancing system which allows for fine tune onsite adjustment for turbomachinery. The rotor balancing system comprises a rotor element having a row of locating slots and a device for reducing windage effects caused by the locating slots and protruding anti-rotation pins. In a preferred embodiment, the device for reducing windage effects comprises at least one balancing ring which partially or fully covers the locating slots and internal slots for engaging and.disengaging that does not protrude outbound of the ring. Each balancing ring is preferably provided with two integrally formed anti-rotation members for engaging the locating slots. Each balancing ring is also preferably provided with a slot in a weighted portion of the ring for receiving a tool for positioning the balancing ring in a desired position. A method for positioning the balancing ring on a rotor element using the slot and the tool is also described herein.

Abstract: A wheel balancing device mounts to a wheel containing a flange having generally opposing sides. The device comprises a pair of weighted bodies and a spring element connected to and interposed between the pair of weighted bodies. The device is mounted to the wheel by positioning the flange thereof between the weighted bodies. The spring element is biased to apply an interference spring force to the weighted bodies, where the force on the weighted bodies causes such bodies to grip the flange positioned therebetween.

Abstract: A method and apparatus is disclosed for balancing a cylinder, roll, or equivalent part, with a thin mantle, by which deviations in the circumferential deflection line of the mantle can be compensated in order to correct for dynamic runout. Errors in the circumferential deflection line are measured and dynamic runout is determined. Locations and magnitudes of any counterweights necessary for balancing are determined based on deformations and dynamic runout arising from deviations in the deflection line of the mantle. Counterweights are fixed to the inner face of the mantle of the cylinder, roll or equivalent part at positions determined from measurements.

Abstract: A balancing mechanism for the spindle of a computer hard disk drive uses two, substantially flat wire clips at each end of the disk pack. The clips are designed so that one clip in each pair nests concentrically inside the other clip in the pair. Each clip is provided with a substantially identical imbalance in the installed position. If the imbalance vectors of each clip at one end of the disk pack are oriented 180 degrees apart, the resulting imbalance at that end of the pack is zero. Conversely, if the imbalance vectors are oriented at the same angle, the imbalance is maximized. Thus, the resolution of the imbalance provided by the clips is theoretically infinite between these limits, up to the precision of the clips. The orientation of the imbalance vector is controlled by the angle of the pair of clips relative to an index mark on the disk pack. The magnitude of the desired counterbalance is controlled by rotating the clips in each pair relative to each other.

Abstract: A moving-weight, dynamic balancing apparatus for a rotary machine, in particular an industrial fan, having a rotary shaft, and at least one rotor carried by the rotary shaft and provided with main rotor bearings to allow rotary movement thereof. The balancing apparatus includes at least one moving-weight balancing unit is carried by the rotary shaft, and at least one monitoring and correcting system having a drive assembly. The at least one monitoring and correcting system monitors and corrects the unbalanced state of the rotor, and acts continuously on the at least one moving-weight balancing unit when the rotor is rotating to monitor and correct for rotor unbalance. The at least one moving-weight balancing unit has at least two balancing masses mounted to be movable under drive from the drive assembly controlled by the monitoring and correction system.

Abstract: An apparatus for dynamically balancing a rotating drum mounted in a fixed frame. The apparatus has at least one balancing set, each balancing set includes two weights, each of the two weights is movable along a circular track attached to the drum and substantially concentric with the axis of rotation of the drum, and a mechanism for holding each of the two weights at any fixed position along the track during rotation of the drum.

Abstract: A driveline assembly and method for balancing the driveline. The driveline includes a drive shaft assembled to a rear axle having a flange therebetween. The driveline is measured to determine an imbalance and a weight is added to the flange to balance the driveline.

Abstract: An apparatus for balancing a rotary member such as a grinding wheel has at least one balancing weight which is guided movably for varying its position with respect to the axis of rotation of the rotary member. The balancing position of the balancing weight is adjusted by means of at least one displacement device including an electric motor. The motor is arranged with its axis of rotary oriented radially with respect to the axis of rotation of the rotary member. The rotor of the motor can be supported by way of a thrust bearing against a main body portion.

Abstract: A method and device for balancing an unbalance on a motor vehicle wheel, including a tire mounting portion that is provided with a stylized design. Such a wheel can include a supporting disk with openings therein defining radially extending, spaced apart support members, such as struts or spokes, in the main area of the wheel. In particular such a tire supporting disk can comprise light metal. The angular positions of the radially extending support members are determined and are stored in storage 2 and the measurement values determined in the measurement procedure are divided into balancing corresponding to the angular positions of the radially extending support members. Weights for balancing the wheel are determined and are attached to the supporting disk at angular positions corresponding to the locations of the support members.

Abstract: A self-balancing apparatus for a centrifuge is disclosed which employs two arcuately movable counterweights. The centrifuge has a plurality of receptacles for receiving one or more assay cartridges. Control apparatus in the centrifuge determines the location and number of received cartridges. Desired counterweight positions are then calculated which will substantially balance the centrifuge. The counterweights are moved into these positions prior to the centrifuge being operated at high speeds.

Abstract: A self-balancing apparatus for a centrifuge is disclosed which employs two arcuately movable counterweights. The centrifuge has a plurality of receptacles for receiving one or more assay cartridges. Control apparatus in the centrifuge determines the location and number of received cartridges. Desired counterweight positions are then calculated which will substantially balance the centrifuge. The counterweights are moved into these positions prior to the centrifuge being operated at high speeds.

Abstract: Rotating machinery construction employing one or more split balance rings within a rotating element the circumferential position of a ring being adjustable through associated casing structure without disassembly of the machinery to permit rebalancing or trim balancing of the rotor element.

Abstract: A dynamic ring balancer for a machine shaft, including an annular case fixedly attachable to the shaft with a central aperture sized to receive the shaft therethrough. The case has an annular chamber extending about the case aperture and containing a pair of eccentrically weighted balancing rings rotatably mounted within the annular chamber. The rings are rotatable relative to each other and the case. A pair of turbine wheels are mounted at an outer wall of the case and are each selectively rotatable in both rotational directions in response to engagement by pressurized air flows. The air flows for each wheel are selectively applied by a stationary manifold as the wheels pass by the manifold while revolving with the case. A pair of reduction gear assemblies are mounted within the case and each drivably interconnects one of the wheels and the corresponding ring to convert rotation of the wheel into rotation of the ring.

Abstract: A dynamic ring balancer for a machine shaft, including an annular case fixedly attachable to the shaft with a central aperture sized to receive the shaft therethrough. The case has an annular chamber extending about the case aperture and containing a pair of eccentrically weighted balancing rings rotatably mounted within the annular chamber. The rings are rotatable relative to each other and the case. A pair of turbine wheels are mounted at an outer wall of the case and are each selectively rotatable in both rotational directions in response to engagement by pressurized air flows. The air flows for each wheel are selectively applied by a stationary manifold as the wheels pass by the manifold while revolving with the case. A pair of reduction gear assemblies are mounted within the case and each drivably interconnects one of the wheels and the corresponding ring to convert rotation of the wheel into rotation of the ring.

Abstract: In a method for the insertion of balancing weights in pockets of an insulating end disc of an electrical machine rotor, only balancing weights of the same weight value are utilized. The balancing weights are distributed over the weight-receiving pockets on both sides of a plane extending through a determined balancing position and the axis of rotation of the rotor. The inserted balancing weights are secured in their respective pockets by means of respective detent closures.

Abstract: An adhesively secured balance weight for counter-balancing vehicle wheels possessing a rim flange and a protruding lip to receive the weight composed of a body having a mass of heavy metal and a length greater than the width and thickness. The body includes top and rear surfaces in which the rear surface is substantially planar for receiving an adhesive layer to adhere the weight to the rim flange. The top surface of the body is provided with an abutment surface for contact with the protruding lip and a chamfer is formed between the top and rear surface by a removal at the arris of about 0.05-0.3 inches on each surface to form a chamfer at least 0.05 times the thickness of the weight. A layer of adhesive is positioned on the rear surface of the weight to secure the weight to the rim flange.

Abstract: An apparatus for balancing of blade sets for a cutter with the blade sets including at least one cutter blade provided with a carrier bore having a hexagonal profile. The cutter blades are provided with at least one clamping set having at least one compensating ring which is held to be rotatable about an axis of rotation of the carrier bore of the cutter blades and which has a mass distribution which is asymmetrical with respect to the axis of rotation of the carrier bore. A holding fixture is provided for the cutter blades and the clamping set with a support, fastened to a fixed support structure, having the holding fixture mounted thereon. The holding fixture is adjustable to accommodate carrier bores having differing hexagonal profiles and a marking stop is attached to the support, which marking stop is adjustable in a radial direction with respect to a rotary axle connected to the holding fixture.