SYSTEM AND METHOD FOR MONITORING A BRAKE SYSTEM OF A MINING MACHINE

• US 20140277964A1
• Filed: 03/14/2014
• Published: 09/18/2014
• Est. Priority Date: 03/14/2013
• Status: Active Grant

• Current Assignee: Joy Global Surface Mining Inc. (Mitsui & Company Limited)
• Original Assignee: Harnischfeger Technologies Inc. (Mitsui & Company Limited)
• Inventors: Rikkola, Michael J., Gudur, Shashikiran, Bhushan, Anubhaw
• Granted Patent: US 9,458,903 B2
• Time in Patent Office: Days
• US Class Current: 701/50
• CPC Class Codes: B60T 13/662 characterised by specified functions of the control system components
• CPC Class Codes: B60T 17/22 Devices for monitoring or checking brake systems; Signal devices
• CPC Class Codes: B60T 8/88 with failure responsive means, i.e. means for detecting and indicating faulty operation of the speed responsive control means
• CPC Class Codes: E02F 3/43 Control of dipper or bucket position; Control of sequence of drive operations
• CPC Class Codes: E02F 9/2083 Control of vehicle braking systems
• CPC Class Codes: E21C 35/04 Safety devices operating in the event of breakage of a haulage cable or chain E21C29/20
• CPC Class Codes: E21C 47/00 Machines for obtaining or the removal of materials in open-pit mines obtaining peat E21C49/00
• CPC Class Codes: F16D 2125/00 Components of actuators
• CPC Class Codes: F16D 66/00 Arrangements for monitoring working conditions, e.g. wear, temperature
• CPC Class Codes: G16Z 99/00 Subject matter not provided for in other main groups of this subclass
• CPC Class Codes: H02P 3/00 Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters stopping of synchronous motors with electronic commutators except reluctance motors, H02P6/24; stopping dynamo-electric motors rotating step by step H02P8/24; vector control H02P21/00

Abstract

A mining machine including a brake operable to halt motion of a component of the mining machine; a first sensor operable to sense a characteristic of the brake to generate brake data; a second sensor operable to sense motion of the component of the mining machine to generate motion data; and a controller. The controller is operable to receive the brake data and the motion data, analyze the brake data and the motion data according to a brake set model and a brake release model, and output an alert in response to an issue with the analyzed brake data or the analyzed motion data.

Claims

1. A mining machine comprising:

a brake operable to halt motion of a component of the mining machine;

a first sensor operable to sense a characteristic of the brake to generate brake data;

a second sensor operable to sense motion of the component of the mining machine to generate motion data; and

a controller operable to

receive the brake data and the motion data,

analyze the brake data and the motion data according to a brake set model and a brake release model, and

output an alert in response to an issue with the analyzed brake data or the analyzed motion data.

2. The mining machine of claim 1, wherein the controller further analyzes the brake data according to a brake pressure model.

3. The mining machine of claim 1, wherein the brake pressure model is based on comparing a sensed brake pressure to an average brake pressure.

4. The mining machine of claim 1, wherein the brake set model is based on comparing a time period between the brake being activated and the component not moving to an average brake set model time period.

5. The mining machine of claim 1, wherein the brake release model is based on comparing a time period between the brake being deactivated and a brake release indicator activating to an average brake release model time period.

6. The mining machine of claim 1, wherein the brake release indicator indicates that a brake solenoid has been activated.

7. The mining machine of claim 1, wherein the alert is output to a network.

8. The mining machine of claim 1, wherein the alert is output to a user.

9. The mining machine of claim 1, wherein the alert shuts down the mining machine.

10. A method of monitoring health of a brake of a mining machine, the mining machine including a movable component, the method comprising sensing a characteristic of the brake to generate brake data;

sensing motion of the movable component to generate motion data;

analyzing the brake data and the motion data according to a brake set model and a brake release model; and

outputting an alert in response to an issue with the analyzed brake data or the analyzed motion data.

11. The method of claim 10, further comprising analyzing the brake data according to a brake pressure model.

12. The method of claim 10, wherein the brake pressure model is based on comparing a sensed brake pressure to an average brake pressure.

13. The method of claim 10, wherein the brake set model is based on comparing a time period between the brake being activated and the component not moving to an average brake set model time period.

14. The method of claim 10, wherein the brake release model is based on comparing a time period between the brake being deactivated and a brake release indicator activating to an average brake release model time period.

15. The method of claim 10, wherein the brake release indicator indicates that a brake solenoid has been activated.

16. The method of claim 10, wherein the alert is output to a network.

17. The method of claim 10, wherein the alert is output to a user.

18. The method of claim 10, wherein the alert shuts down the mining machine.

19. The method of claim 10, wherein the analyzing is performed locally by a controller of the mining machine.

20. The method of claim 10, further comprising outputting the brake data and the motion data to a remote server, wherein the remote server performs the analyzing of the brake data and the motion data.