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1. WO2022005525 - APPARATUS AND METHOD FOR COAXIALLY ALIGNING TWO ROTATABLE SHAFTS

Publication Number WO/2022/005525
Publication Date 06.01.2022
International Application No. PCT/US2021/012177
International Filing Date 05.01.2021
IPC
G01B 11/27 2006.1
GPHYSICS
01MEASURING; TESTING
BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
11Measuring arrangements characterised by the use of optical means
26for measuring angles or tapers; for testing the alignment of axes
27for testing the alignment of axes
G01B 11/00 2006.1
GPHYSICS
01MEASURING; TESTING
BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
11Measuring arrangements characterised by the use of optical means
G01B 11/28 2006.1
GPHYSICS
01MEASURING; TESTING
BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
11Measuring arrangements characterised by the use of optical means
28for measuring areas
G01C 3/00 2006.1
GPHYSICS
01MEASURING; TESTING
CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
3Measuring distances in line of sight; Optical rangefinders
G01S 17/00 2020.1
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
17Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
Applicants
  • REDALIGN LLC [US]/[US]
Inventors
  • STRUNK, Fred L.
  • WOYCIK, Thomas Edward
  • CUMMINGS, Marshall Bruce
Agents
  • NEMAZI, John E.
  • BRODBINE, Michael S.
Priority Data
16/915,72829.06.2020US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) APPARATUS AND METHOD FOR COAXIALLY ALIGNING TWO ROTATABLE SHAFTS
(FR) APPAREIL ET PROCÉDÉ D'ALIGNEMENT COAXIAL DE DEUX ARBRES ROTATIFS
Abstract
(EN) An apparatus and method for aligning two coaxially coupled rotatable shafts. A servo operated positioning device is movable along a longitudinal axis parallel to the axis of the shafts, and movable vertically to position a laser range (LRF) adjacent to the two shafts, which measures the distance between the LRF and a spot on the shafts. A controller having a processor and memory communicates with the positioning device and the LRF to collect data at two axial positions on each shaft. At each position the LRF measures the distance to the shaft and stores the measurement and location data. The LRF is vertically repositioned and the measurement and storing steps are repeated over a scan distance sufficient to provide enough data to determine the location of the shaft center. The processor then calculates and compares the shafts centerlines and determines the necessary adjustments needed to move the shafts into coaxial alignment.
(FR) Appareil et procédé d'alignement de deux arbres rotatifs accouplés de manière coaxiale. Un dispositif de positionnement asservi est mobile le long d'un axe longitudinal parallèle à l'axe des arbres, et mobile verticalement afin de positionner un télémètre laser (LRF) adjacent aux deux arbres, qui mesure la distance entre le LRF et un point sur les arbres. Un dispositif de commande muni d'un processeur et d'une mémoire communique avec le dispositif de positionnement et le LRF afin de collecter des données au niveau de deux positions axiales sur chaque arbre. À chaque position, le LRF mesure la distance par rapport à l'arbre et stocke les données de mesure et de localisation. Le LRF est repositionné verticalement et les étapes de mesure et de stockage sont répétées sur une distance de balayage suffisante pour fournir assez de données pour déterminer la localisation du centre d'arbre. Le processeur calcule et compare ensuite les axes longitudinaux des arbres et détermine les réglages nécessaires nécessités pour déplacer les arbres en alignement coaxial.
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