Balancing and monitoring apparatus
First Claim
1. Apparatus for balancing and monitoring unbalanced vibrations of a rotating member comprising vibration pick-up means located on a mounting of the rotating member for producing an electrical signal which corresponds to a component of a unbalanced force of the rotating member and extending in an axial direction of the vibration pick-up means, an abrasion tool, an electromechanical actuator means responsive to the electrical signal and having a part for supporting the abrasion tool, the electromechanical actuator means in response to the electrical signal controlling the abrasion tool to effect working vibration of the abrasion tool at a frequency corresponding to the speed of the rotating member to remove material from the rotating member in-phase with the working vibration in the same angular region of the rotating member for effecting a balancing of the rotating member, and means for enabling adjustment of a phase relationship of the vibration of the abrasion tool with respect to a phase relationship of the unbalanced electrical signal so as to effect shifting by any number of steps of 360°
- /n, n being a whole number>
3, irrespective of the speed of the rotating member, the means for enabling adjustment including a phase-locked loop circuit for producing a phase-locked oscillation at n-times an unbalanced frequency, the phase-locked loop circuit being connected to an n-factor frequency reducer, a signal from the frequency reducer being compared in the phase-locked loop circuit with the electrical signal from the vibration pick-up means, and the difference influencing the frequency of the phase-locked loop circuit such that the signal supplied to the frequency reducer corresponds to the electrical signal as regards frequency and phase.
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Accused Products
Abstract
A device for balancing rotating bodies including a sensing arrangement for sensing the out of balance of the rotating body and for abrasion tool at a frequency corresponding to the speed of the rotating member so as to remove material from the rotating member in phase with the working vibration in the same region of the rotating member for effecting a balancing of the rotating member. The apparatus also includes an adjusting arrangement enabling adjustment of the phase relationship of the vibration of the abrasion tool with respect to the phase relationship of the out-of-balance signal so as to effect shifting by any number of steps of 360°/n, n being a whole number>3, irrespective of the speed of the rotating member.
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Citations
21 Claims
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1. Apparatus for balancing and monitoring unbalanced vibrations of a rotating member comprising vibration pick-up means located on a mounting of the rotating member for producing an electrical signal which corresponds to a component of a unbalanced force of the rotating member and extending in an axial direction of the vibration pick-up means, an abrasion tool, an electromechanical actuator means responsive to the electrical signal and having a part for supporting the abrasion tool, the electromechanical actuator means in response to the electrical signal controlling the abrasion tool to effect working vibration of the abrasion tool at a frequency corresponding to the speed of the rotating member to remove material from the rotating member in-phase with the working vibration in the same angular region of the rotating member for effecting a balancing of the rotating member, and means for enabling adjustment of a phase relationship of the vibration of the abrasion tool with respect to a phase relationship of the unbalanced electrical signal so as to effect shifting by any number of steps of 360°
- /n, n being a whole number>
3, irrespective of the speed of the rotating member, the means for enabling adjustment including a phase-locked loop circuit for producing a phase-locked oscillation at n-times an unbalanced frequency, the phase-locked loop circuit being connected to an n-factor frequency reducer, a signal from the frequency reducer being compared in the phase-locked loop circuit with the electrical signal from the vibration pick-up means, and the difference influencing the frequency of the phase-locked loop circuit such that the signal supplied to the frequency reducer corresponds to the electrical signal as regards frequency and phase. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
- /n, n being a whole number>
Specification