Granted Patent B2

US 12,331,491 · App. 18/316,106 · Granted Jun 17, 2025

Inventor: Brian N. White (Brookfield, WI)

Assignee: JOY GLOBAL SURFACE MINING INC

E02F9/267E02F9/26E21C35/00E02F3/30

Abstract

Claims (42)

1. A vibration monitoring system for an industrial machine, the industrial machine including a plurality of movable components and one or more motor operatively coupled to the plurality of movable components, the system comprising:

a plurality of sensors, each of the plurality of sensors positioned at one of a plurality of measurement points on at least one of the movable component of the industrial machine; and

an electronic processor coupled to the plurality of sensors and configured to

receive a signal including a parameter related to a motion of the at least one moveable component,

identify a steady state of the industrial machine based, at least in part, on the parameter meeting a predetermined criteria,

receive, from the plurality of sensors, a plurality of vibration data sets, and

select a vibration data subset from the plurality of vibration data sets corresponding to the steady state of the industrial machine.

2. The vibration monitoring system of claim 1 , wherein the parameter includes at least one selected from the group consisting of a motor speed, a motor acceleration, and a motor torque.

3. The vibration monitoring system of claim 1 , wherein each of the vibration data sets is a waveform between five and ten seconds in length, and wherein the vibration data subset is a waveform of approximately one second long.

4. The vibration monitoring system of claim 1 , wherein the electronic processor further selects the vibration data subset based on a window of time with at least one selected from the group consisting of a low peak motor acceleration, a low total fluctuation in motor speed, a low rate of change in motor torque, and a low total fluctuation in motor torque.

5. The vibration monitoring system of claim 1 , wherein the electronic processor receives the plurality of vibration data sets during an active operation of the industrial machine.

6. The vibration monitoring system of claim 1 , wherein at least one of the components is one selected from a group consisting of a hoist motor and a pinion shaft, a hoist intermediate shaft, a hoist drum, a swing motor and a pinion shaft, a swing intermediate shaft, a swing output shaft, a crowd motor, a crowd input shaft, and a crowd intermediate shaft.

7. The vibration monitoring system of claim 1 , wherein the electronic processor is a first electronic processor; and

further comprising a second electronic processor coupled to the first electronic processor, the second electronic processor configured to control at least one of the components,

wherein the first electronic processor receives the signal including the parameter from the second processor.

8. The control vibration monitoring of claim 1 , wherein the plurality of sensors includes a plurality of accelerometers.

9. The control vibration monitoring of claim 1 , further comprising

at least one tachometer positioned to monitor at least one of the components,

wherein the electronic processor is coupled to the tachometer and is further configured to receive the signal including the parameter from the tachometer.

10. The vibration monitoring system of claim 1 , wherein the electronic processor is further configured to determine whether each of the plurality of vibration data sets is valid, and wherein the electronic processor is further configured to writing the plurality of vibration data sets to a memory when each of the plurality of vibration data sets is valid.

11. A method of analyzing vibration data for an industrial machine, the method comprising:

receiving, by an electronic processor, a signal including a parameter related to a motion of at least one component of the industrial machine;

identifying, by the electronic processor, a steady state of the industrial machine;

receiving, by the electronic processor, a plurality of vibration data sets from a plurality of sensors, each of the plurality of sensors positioned at one of a plurality of measurement points on at least one of the components of the industrial machine; and

selecting, by the electronic processor, a vibration data subset from the plurality of vibration data sets corresponding to the steady state of the industrial machine.

12. The method of claim 11 , wherein the parameter includes at least one selected from the group consisting of a motor speed and a motor torque.

13. The method of claim 11 , wherein each of the vibration data sets is a waveform between five and ten seconds in length, and wherein the vibration data subset is a waveform of approximately one second long.

14. The method of claim 11 , wherein selecting the vibration data subset further includes selecting the vibration subset based on a window of time with at least one selected from the group consisting of a low peak motor acceleration, a low total fluctuation in motor speed, a low rate of change in motor torque, and a low total fluctuation in motor torque.

15. The method of claim 11 , wherein receiving the plurality of vibration data sets includes receiving the plurality of vibration sets during an active operation of the industrial machine.

16. The method of claim 11 , wherein at least one of the components is one selected from a group consisting of a hoist motor and a pinion shaft, a hoist intermediate shaft, a hoist drum, a swing motor and a pinion shaft, a swing intermediate shaft, a swing output shaft, a crowd motor, a crowd input shaft, and a crowd intermediate shaft.

17. The method of claim 11 , wherein the electronic processor is a first electronic processor; and wherein the first electronic processor receives the signal including the parameter from a second processor, the second electronic processor configured to control at least one of the components of the industrial machine.

18. The method of claim 11 , wherein the plurality of sensors includes a plurality of accelerometers.

19. The method of claim 11 , wherein the electronic processor is coupled to a tachometer, the tachometer positioned to monitor at least one of the components, and wherein receiving the signal including the parameter includes receiving a signal from the tachometer.

20. The method of claim 11 , further comprising determining whether each of the plurality of vibration data sets is valid, and writing the plurality of vibration data sets to a memory when each of the plurality of vibration data sets is valid.

21. A mining machine vibration monitoring system comprising:

a plurality of sensors, each of the plurality of sensors positioned at one of a plurality of measurement points on at least one component of the mining machine, the at least one component configured to be controlled to move in response to motion commands;

a processing system operatively coupled to the at least one component and the plurality of sensors, the processing system configured to:

receive, from the plurality of sensors, a plurality of vibration data sets; and

determine whether each of the plurality of vibration data sets is valid or invalid, wherein the determination of whether each of the plurality of vibration data sets is valid or invalid is based on a frequency level of energy of each of the plurality of vibration data sets.

22. The mining machine vibration monitoring system of claim 21 , wherein in response to the plurality of vibration data sets being valid, writing the plurality of vibration data sets to a memory.

23. The mining machine vibration monitoring system of claim 22 , wherein in response to at least one of the plurality of vibration data sets being invalid, determine whether a failure threshold has been exceeded.

24. The mining machine vibration monitoring system of claim 23 , wherein in response to the failure threshold being exceeded, generate an alert.

Assignments (2)

Continuity (3)

References Cited (30)