# US 10,503,131 B2 · Precision shaft alignment system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,503,131 B2 - Document ID: US10503131B2 - Status: Granted - Kind: B2 - Application number: 15/851,720 - Filed: 2017-12-21 - Published: 2018-06-28 - Granted: 2019-12-10 - Earliest claimed: 2014-08-06 - Applicants: Danny Harris - Inventors: Danny Harris - Web page: https://patentgrep.com/patent/US10503131B2 ## CPC - G05B 19/0405: {Program-control specially adapted for machine tool control and not otherwise provided for} - B66F 3/247: {pneumatically actuated (B66F3/35 takes precedence)} - B66F 3/35: Inflatable flexible elements, e.g. bellows (inflatable load-engaging elements B66F3/40; connection of valves to inflatable elastic bodies B60C29/00) - B66F 3/44: with self-contained electric driving motors - B66F 3/46: Combinations of several jacks with means for interrelating lifting or lowering movements - G05B 15/02: electric - G05B 19/0426: {Programming the control sequence} - G05B 19/402: characterised by control arrangements for positioning, e.g. centring a tool relative to a hole in the workpiece, additional detection means to correct position (G05B19/19 takes precedence) - B66F 11/04: for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations ({Working platforms on fork-lift trucks B66F9/127; } vehicle aspects of service vehicles B60P3/14; platforms for cleaning windows A47L3/02; devices for rescuing persons from buildings A62B1/02; liftable or lowerable platforms for use on ladders E06C7/16; maintenance travellers for bridges E01D19/10; scaffolds on an extensible sub-structure E04G1/22) - G01B 11/272: {using photoelectric detection means} - G05B 2219/37275: Laser, interferometer - G05B 2219/41091: Alignment, zeroing, nulling, set parallel to axis - G05B: CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS (systems for controlling or regulating non-electric variables G05D; systems for regulating electric or magnetic variables G05F; control devices or systems insofar as characterised by mechanical features only G05G) - B66F: HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD ({invalid lifting devices A61G7/10; } mounting artificial islands on piles or like supports E02B17/00; scaffolding combined with lifting devices E04G1/22; lifting devices for sliding forms E04G11/24; lifting of buildings E04G23/06; shores or struts E04G25/00; lifts or other hoisting devices on ladders E06C7/12; props for mining E21D15/00) - G01B: MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS ## Abstract A precision shaft alignment system for establishing precise concentric axial alignment of a first shaft rotatably mounted and extending from a fixed unit and a second shaft extending from a variable position unit towards the first shaft includes a control and computing interface module, a pair of measuring means for precisely measuring at least one position of the first shaft and the second shaft and a jacking system for precisely aligning the shafts. The pair of measuring means is in communication with the control and computing interface module for transferring the at least one position of the first shaft and the second shaft for establishing precise concentric axial alignment of the first shaft and the second shaft. The jacking system is controlled by the control and computing interface module for precisely aligning the shaft. ## Claims ### Claim 1 A precision shaft alignment system comprising: a. a first shaft extending from a fixed unit; b. a second shaft extending towards the first shaft from a variable-position unit, the first shaft and the second shaft being rotatably mounted to precisely couple with one another; c. a control and computing interface module; d. two lasers, one being mounted to the first shaft and the other being mounted to the second shaft, in communication with the control and computing interface module, wherein the lasers precisely measure at least one position of the first shaft and the second shaft relative to one another and communicate the at least one position to the control and computing interface module; and e. a jacking system coupled to the second shaft, the jacking system being in communication with, and controlled by, the control and computing interface module, wherein the jacking system comprises a floating engagement device including: i. an electro-magnetic coil in electrical communication with the control and computing interface module; ii. a housing; iii. a horizontal sliding shaft extending through a first side of the housing, wherein a first end of the horizontal sliding shaft is coupled to a jack assembly; iv. a vertical sliding shaft extending through the coil, wherein the vertical sliding shaft is configured to releasably engage a second end of the horizontal sliding shaft; v. a linear bearing atop a mounting bracket, wherein the housing movably engages the linear bearing; and vi. an adjustment shaft configured to move the housing along the linear bearing, wherein the coil is energized based on at least one signal from the control and computing interface module, wherein the at least one signal is calculated based on the at least one position of the first shaft and the second shaft, wherein, when the coil is energized, the vertical sliding shaft engages the horizontal sliding shaft, whereby the floating engagement device applies pressure to at least one jack of the jacking system, and wherein, when the coil is de-energized, the vertical sliding shaft disengages the horizontal sliding shaft, whereby the floating engagement device releases the pressure and allows freedom of axis movement to allow measurement of compensation for static movement caused by applied pressure difference against a system motor when the motor is moving to correct misalignment of the first shaft and the second shaft, wherein the jacking system repositions the second shaft horizontally, based on the at least one signal and the compensation for static movement, to establish precise concentric axial alignment with the first shaft, wherein all measurements and calculations, and horizontal adjustments of the second shaft are fully automated and are performed by the system. ### Claim 2 (depends on 1) The precision shaft alignment system of claim 1, wherein the control and computing interface module processes calculations of a plurality of measurements received from the lasers to enable automatic controlling of a position of the second shaft to establish precise concentric axial alignment of the first shaft with the second shaft. ### Claim 3 (depends on 1) The precision shaft alignment system of claim 1, wherein the control and computing interface module processes calculations of a plurality of measurements received from the lasers to enable manual control of a position of the second shaft to establish precise concentric axial alignment of the first shaft with the second shaft. ### Claim 4 (depends on 1) The precision shaft alignment system of claim 1, wherein the jacking system includes jack bolts and/or hydraulic jacking tools allowing for a manual horizontal jacking process by processing calculations for a plurality of measurements received from the lasers, wherein the jacking system includes an automated horizontal jacking assembly comprising at least two electric gear head motors and/or a pair of air gear motor driven screw jacks capable of being operated automatically based on at least one signal from the control and computing interface module. ### Claim 5 (depends on 1) The precision shaft alignment system of claim 1, wherein the floating engagement device provides freedom of movement for at least one jack of the jacking system by allowing a movement of the at least one jack when a second jack is moving, wherein the floating engagement device provides the ability to compensate for static movement of the at least one jack by making a comparison after force is applied and then released, and wherein a plurality of information related to the movement of the at least one jack is sent to the control and computing interface module to determine a dynamic positioning value. ### Claim 6 (depends on 1) The precision shaft alignment system of claim 1, wherein the lasers measure misalignment of the first shaft and the second shaft and communicate the measured misalignment to the control and computing interface module to perform dynamic, direct-response calculations to correct the measured misalignment by horizontal movement of at least one jack of the jacking system. ### Claim 7 (depends on 1) The precision shaft alignment system of claim 1, further comprising a program having built-in soft foot detection, wherein the software is capable of determining vertical alignment correction information, wherein the vertical alignment correction information is displayed on a display to allow a user to correct a soft foot, wherein the display displays an amount of front and/or rear shims required to correct a vertical alignment process of the first shaft and the second shaft. ### Claim 8 (depends on 1) The precision shaft alignment system of claim 1, wherein a vertical alignment process includes measuring and inputting a distance between the lasers and a distance from the laser mounted to the second shaft to a front motor foot and a rear motor foot, wherein a vertical alignment of the first shaft and the second shaft is obtained by adding or subtracting the amount of front and/or rear shims required to correct the vertical alignment process, and wherein the vertical alignment of the first shaft and the second shaft is obtained as indicated by at least one directional flashing light under at least one of a front mounting and a rear mounting of the system. ### Claim 9 (depends on 1) The precision shaft alignment system of claim 1, wherein vertical positioning of the first shaft and the second shaft is automated, wherein the system further comprises: a. a coil-energized valve; b. a pump that powers the valve and is responsive to the control and computing interface module; and c. one or more support means activated by the pump, wherein the one or more support means lift, hold and/or lower a front and/or a rear of the variable-position unit, wherein a displayed number of front shims and rear shims are added or removed, as calculated by the control and computing interface module. ### Claim 10 (depends on 9) The precision shaft alignment system of claim 9, wherein the one or more support means is selected from the group consisting of cylinders and air bags. ### Claim 11 A precision shaft alignment system comprising: a. a first shaft extending from a fixed unit; b. a second shaft extending towards the first shaft from a variable-position unit, the first shaft and the second shaft being rotatably mounted to precisely couple with one another; c. a control and computing interface module; d. two digital sensors, one being mounted to the first shaft and the other being mounted to the second shaft, in communication with the control and computing interface module, wherein the digital sensors precisely measure at least one position of the first shaft and the second shaft relative to one another and communicate the at least one position to the control and computing interface module; and e. a jacking system coupled to the second shaft, the jacking system being in communication with, and controlled by, the control and computing interface module, wherein the jacking system comprises a floating engagement device including: i. an electro-magnetic coil in electrical communication with the control and computing interface module; ii. a housing; iii. a horizontal sliding shaft extending through a first side of the housing, wherein a first end of the horizontal sliding shaft is coupled to a jack assembly; iv. a vertical sliding shaft extending through the coil, wherein the vertical sliding shaft is configured to releasably engage a second end of the horizontal sliding shaft; v. a linear bearing atop a mounting bracket, wherein the housing movably engages the linear bearing; and vi. an adjustment shaft configured to move the housing along the linear bearing, wherein the coil is energized based on at least one signal from the control and computing interface module, wherein the at least one signal is calculated based on the at least one position of the first shaft and the second shaft, wherein, when the coil is energized, the vertical sliding shaft engages the horizontal sliding shaft, whereby the floating engagement device applies pressure to at least one jack of the jacking system, and wherein, when the coil is de-energized, the vertical sliding shaft disengages the horizontal sliding shaft, whereby the floating engagement device releases the pressure and allows freedom of axis movement to allow measurement of compensation for static movement caused by applied pressure difference against a system motor when the motor is moving to correct misalignment of the first shaft and the second shaft, wherein the jacking system repositions the second shaft horizontally, based on the at least one signal and the compensation for static movement, to establish precise concentric axial alignment with the first shaft, wherein all measurements and calculations, and horizontal adjustments of the second shaft are fully automated and are performed by the system. ### Claim 12 (depends on 11) The precision shaft alignment system of claim 11, wherein the control and computing interface module processes calculations of a plurality of measurements received from the digital sensors to enable automatic controlling of a position of the second shaft to establish precise concentric axial alignment of the first shaft with the second shaft. ### Claim 13 (depends on 11) The precision shaft alignment system of claim 11, wherein the control and computing interface module processes calculations of a plurality of measurements received from the digital sensors to enable manual control of a position of the second shaft to establish precise concentric axial alignment of the first shaft with the second shaft. ### Claim 14 (depends on 11) The precision shaft alignment system of claim 11, wherein the jacking system includes jack bolts and/or hydraulic jacking tools allowing for a manual horizontal jacking process by processing calculations for a plurality of measurements received from the digital sensors, wherein the jacking system includes an automated horizontal jacking assembly comprising at least two electric gear head motors and/or a pair of air gear motor driven screw jacks capable of being operated automatically based on at least one signal from the control and computing interface module. ### Claim 15 (depends on 11) The precision shaft alignment system of claim 11, wherein the floating engagement device provides freedom of movement for at least one jack of the jacking system by allowing a movement of the at least one jack when a second jack is moving, wherein the floating engagement device provides the ability to compensate for static movement of the at least one jack by making a comparison after force is applied and then released, and wherein a plurality of information related to the movement of the at least one jack is communicated to the control and computing interface module to determine a dynamic positioning value. ### Claim 16 (depends on 11) The precision shaft alignment system of claim 11, wherein the digital sensors measure misalignment of the first shaft and the second shaft and communicate the measured misalignment to the control and computing interface module to perform dynamic, direct-response calculations to correct the measured misalignment by horizontal movement of at least one jack of the jacking system. ### Claim 17 (depends on 11) The precision shaft alignment system of claim 11, further comprising a program having built-in soft foot detection, wherein the software is capable of determining vertical alignment correction information, wherein the vertical alignment correction information is displayed on a display to allow a user to correct a soft foot, wherein the display displays an amount of front and/or rear shims required to correct a vertical alignment process of the first shaft and the second shaft. ### Claim 18 (depends on 11) The precision shaft alignment system of claim 11, wherein a vertical alignment process includes measuring and inputting a distance between the digital sensors and a distance from the digital sensor mounted to the second shaft to a front motor foot and a rear motor foot, wherein a vertical alignment of the first shaft and the second shaft is obtained by adding or subtracting the amount of front and/or rear shims required to correct the vertical alignment process, and wherein the vertical alignment of the first shaft and the second shaft is obtained as indicated by at least one directional flashing light under at least one of a front mounting and a rear mounting of the system. ### Claim 19 (depends on 11) The precision shaft alignment system of claim 11, wherein vertical positioning of the first shaft and the second shaft is automated, wherein the system further comprises: a. a coil-energized valve; b. a pump that powers the valve and is responsive to the control and computing interface module; and c. one or more support means activated by the pump, wherein the one or more support means lift, hold and/or lower a front and/or a rear of the variable-position unit, wherein a displayed number of front shims and rear shims are added or removed, as calculated by the control and computing interface module. ### Claim 20 (depends on 19) The precision shaft alignment system of claim 19, wherein the one or more support means is selected from the group consisting of cylinders and air bags.