System and method for vibration monitoring of a mining machine

• US 9,903,090 B2
• Filed: 01/17/2013
• Issued: 02/27/2018
• Est. Priority Date: 01/18/2012
• Status: Active Grant

• Current Assignee: Joy Global Surface Mining Inc. (Mitsui & Company Limited)
• Original Assignee: Harnischfeger Technologies Inc. (Mitsui & Company Limited)
• Inventors: Daniel, Kenneth J., Torres, Jose, Emerson, Mark
• Primary Examiner(s): Edwards, Jerrah
• Assistant Examiner(s): ALSOMIRI, MAJDI A
• Application Number:
  US13/743,894
• Publication Number:
  US 20130184927A1
• Time in Patent Office: 1,867 Days
• Field of Search: 701 291, 299 105, 299 11- 15, 299 18, 299 10, 299 31, 299 73
• CPC Class Codes: E02F 3/146 guides for chains or buckets, e.g. for buckets movable relative to chains chains or chain guides E21C25/28
• CPC Class Codes: E02F 3/36 Component parts
• CPC Class Codes: E02F 3/46 with reciprocating digging or scraping elements moved by cables or hoisting ropes ; Drives or control devices therefor E02F3/205, E02F3/905 take precedence
• CPC Class Codes: E02F 9/267 Diagnosing or detecting failure of vehicles
• CPC Class Codes: G01M 7/00 Vibration-testing of structures; Shock-testing of structures G01M9/00 takes precedence
• CPC Class Codes: G06F 11/30 Monitoring

Abstract

A mining machine having a control system for operating the mining machine, the control system having a vibration monitor. The mining machine comprising a mining machine, a sensor sensing vibration of a component of the mining machine, and a vibration module. The vibration module determining when the mining machine is moving in a predetermined cycle, obtaining vibration sensor data from the sensor based on determining that the mining machine is moving in a predetermined cycle, processing the vibration sensor data to generate processed vibration data, and outputting the processed vibration data.

Claims

1. A mining machine having a control system for operating the mining machine, the control system having a vibration monitor, the mining machine comprising:

a sensor sensing vibration of a component of the mining machine; and

a vibration control system

determining when the mining machine is moving in a proper cycle,

triggering the acquisition of vibration sensor data from the sensor in response to determining that the mining machine is moving in the proper cycle, wherein the proper cycle includes at least one selected from the group consisting of a digging action, a swinging action, and a tucking action,

processing the vibration sensor data to generate processed vibration data, and

outputting the processed vibration data.

2. The mining machine of claim 1, wherein the sensor is an accelerometer.

3. The mining machine of claim 1, further comprising a tachometer that monitors speed of the mining machine while operating in the proper cycle.

4. The mining machine of claim 3, wherein the tachometer is a simulated tachometer including a voltage monitor.

5. The mining machine of claim 1, further comprising a user-interface that indicates at least one of an amount of the vibration sensor data collected and the processed vibration data.

6. The mining machine of claim 1, further including a network for communicating the processed vibration data.

7. The mining machine of claim 6, wherein the processed vibration data is displayed at a remote location.

8. The mining machine of claim 1, wherein the vibration control system further monitors the speed of the component of the mining machine and obtains the vibration sensor data further based on determining that the component is moving at a constant speed within a predefined speed range.

9. The mining machine of claim 1, wherein the vibration control system further monitors torque of the component of the mining machine and obtains the vibration sensor data further based on determining that the component has a constant torque within a predefined range.

10. The mining machine of claim 1, wherein the proper cycle is at least one of a digging operation, a swinging operation, and a tucking operation.

11. The mining machine of claim 1, wherein the vibration control system further obtains vibration sensor data from the sensor upon determining a speed of the component of the mining machine is within a predefined speed range.

12. The mining machine of claim 1, wherein the vibration control system further obtains vibration sensor data from the sensor upon determining a torque of the component of the mining machine is within a predefined torque range.

13. The mining machine of claim 1, wherein the vibration control system further comprises generating an alarm when the processed vibration data indicates a mechanical issue with the component of the mining machine.

14. A method for monitoring mining equipment, the method comprising:

monitoring operation of a mining machine;

determining that a component of the mining machine is moving in a proper cycle;

determining that the component of the mining machine is moving at a constant speed;

triggering, by a processor, the acquisition of vibration data of the mining machine in response to determining that the component of the mining machine is moving in the proper cycle and at the constant speed, wherein the proper cycle includes at least one selected from the group consisting of a digging action, a swinging action, and a tucking action;

processing, using the processor, the vibration data to generate processed vibration data; and

outputting the processed vibration data.

15. The method of claim 14, further including determining that the component of the mining machine is moving with a constant torque.

16. The method of claim 15, wherein the component of the mining machine is moving with a constant torque within a predefined range.

17. The method of claim 14, wherein the component of the mining machine is moving at a constant speed within a predefined range.

18. The method of claim 14, further comprising obtaining, by the processor, vibration sensor data from the sensor upon determining a torque of the component of the mining machine is within a predefined torque range.

19. A mining machine having a control system for operating the mining machine, the control system having a vibration monitor, the mining machine comprising:

a user-interface providing instructions to operate a component of the mining machine in a predetermined pattern, wherein the predetermined pattern includes at least one selected from the group consisting of a hoisting action, a crowding action, and a swinging action;

the component of the mining machine moving in the predetermined pattern;

a sensor sensing vibration of the component of the mining machine while operating in the predetermined pattern, the sensor outputting vibration sensor data; and

a processor

receiving the vibration sensor data from the sensor,

processing the vibration sensor data, and

outputting the processed vibration data.

20. The mining machine of claim 19, wherein the predetermined pattern includes at least one selected from the group consisting of a hoisting action, a crowding action, and a swinging action.

21. The mining machine of claim 19, wherein the component is at least one selected from the group consisting of a dipper shaft, a handle, and a dipper.

22. A mining machine having a control system for operating the mining machine, the mining machine comprising:

a user-interface providing instructions to operate the mining machine in a predetermined pattern, wherein the predetermined pattern includes at least one selected from the group consisting of a hoisting action, a crowding action, and a swinging action;

the mining machine operating in the predetermined pattern;

a sensor sensing a parameter of the mining machine while operating in the predetermined pattern, the sensor outputting sensor data representing the sensed parameter; and

a processor

receiving the sensor data from the sensor,

processing the sensor data, and

outputting the processed sensor data.

23. The mining machine of claim 22, wherein the parameter sensed is vibration, torque, or speed.

24. The mining machine of claim 22, wherein the sensor is an accelerometer that senses vibration.

25. The mining machine of claim 22, further comprising a tachometer that monitors speed of the mining machine while operating in the predetermined pattern.

26. The mining machine of claim 25, wherein the tachometer is a simulated tachometer including a voltage monitor.

27. The mining machine of claim 22, wherein the predetermined pattern is at least one of moving a hoist up and down, moving a crowd in and out, and swinging a handle side to side.

28. The mining machine of claim 22, wherein the parameter is vibration and wherein processing the sensor data includes performing a Fourier transform on the sensor data.

29. The mining machine of claim 22, wherein the user-interface further indicates at least one of an amount of the sensor data collected and the processed sensor data outputted by the processor.

30. The mining machine of claim 22, wherein the mining machine is moved in the predetermined pattern until an amount of collected sensor data exceeds a threshold.

31. The mining machine of claim 22, further including a network for communicating the processed sensor data outputted by the processor.

32. The mining machine of claim 31, wherein the processed sensor data is displayed at a remote location.

33. The mining machine of claim 22, wherein the predetermined pattern includes at least one selected from the group consisting of a hoisting action, a crowding action, and a swinging action.