SYSTEM FOR MANAGING MINING MACHINERY, METHOD FOR MANAGING MINING MACHINERY, AND DUMP TRUCK

• US 20160155277A1
• Filed: 11/27/2014
• Published: 06/02/2016
• Est. Priority Date: 11/27/2014
• Status: Active Grant

• Current Assignee: Komatsu Ltd.
• Original Assignee: Komatsu Ltd.
• Inventors: Asada, Hisashi, Doishita, Kenji, Tsubone, Dai, Akiyama, Tetsuya, Kurokawa, Ryomei
• Granted Patent: US 9,704,304 B2
• Time in Patent Office: Days
• CPC Class Codes: B60C 11/246 Tread wear monitoring systems
• CPC Class Codes: B60C 19/00 Tyre parts or constructions not otherwise provided for
• CPC Class Codes: B60C 2019/004 Tyre sensors other than for detecting tyre pressure
• CPC Class Codes: B60C 23/06 Signalling devices actuated by deformation of the tyre , e.g. tyre mounted deformation sensors or indirect determination of tyre deformation based on wheel speed, wheel-centre to ground distance or inclination of wheel axle
• CPC Class Codes: B60G 17/04 fluid spring characteristics
• CPC Class Codes: B60G 2300/09 Construction vehicles, e.g. graders, excavators
• CPC Class Codes: B60G 2400/5182 Fluid damper
• CPC Class Codes: B60G 2400/61 Load distribution
• CPC Class Codes: B60G 2800/802 Diagnostics
• CPC Class Codes: G01L 5/0061 Force sensors associated with industrial machines or actuators for the specific machine or actuator involved see relevant class, e.g. F01, F04, F16, B66, E21
• CPC Class Codes: G01P 15/00 Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
• CPC Class Codes: G06Q 50/02 Agriculture; Fishing; Forestry; Mining
• CPC Class Codes: G07C 5/08 Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time

Abstract

A management system for a mining machine on which tires are mounted and which travels in a mine by operation performed by a driver includes: a determination unit configured to determine whether or not a damaging operation damaging the tires has been carried out; a data acquisition unit configured to acquire damaging operation data indicating carrying out of the damaging operation, and one or both of driver identification data indicating a driver who has carried out the damaging operation and position data indicating a position of the mining machine on which the damaging operation has been carried out; and a data output unit configured to output association data containing the damaging operation data associated with one or both of the driver identification data and the position data.

Claims

1. A management system for a mining machine on which tires are mounted and which travels in a mine by operation performed by a driver, the management system comprising:

a determination unit configured to determine whether or not a damaging operation damaging the tires has been carried out;

a data acquisition unit configured to acquire damaging operation data indicating carrying out of the damaging operation, and one or both of driver identification data indicating the driver who has carried out the damaging operation and position data indicating a position of the mining machine on which the damaging operation has been carried out; and

a data output unit configured to output association data containing the damaging operation data associated with one or both of the driver identification data and the position data.

2. The management system for a mining machine according to claim 1, further comprising a position detection device configured to detect a position of the mining machine, wherein

the data acquisition unit acquires the position data from the position detection device.

3. The management system for a mining machine according to claim 1, wherein, the damaging operation includes at least one of a rapid deceleration operation of decelerating the mining machine at a first speed or higher per unit time, a stationary steering operation of changing a direction of the tires of the mining machine at a second speed or lower, and an aggressive cornering operation of making the mining machine travel along a curve having a radius of curvature of a predetermined value or smaller at a third speed or higher.

4. The management system for a mining machine according to claim 1, further comprising a speed detection device configured to detect a traveling speed and a deceleration of the mining machine, wherein

the determination unit determines whether or not the damaging operation has been carried out on the basis of a detection signal from the speed detection device.

5. The management system for a mining machine according to claim 4, further comprising a load detection device configured to detect a load acting on the tire, wherein

the damaging operation includes a rapid deceleration operation of decelerating the mining machine at a first speed or higher per unit time, and

the determination unit determines whether or not the rapid deceleration operation has been carried out on the basis of deceleration data indicating the deceleration of the mining machine and load data indicating the load acting on the tires.

6. The management system for a mining machine according to claim 5, further comprising a first estimation unit configured to estimate an amount of damage to the tires caused by the rapid deceleration operation, wherein

when the deceleration of the mining machine is represented by A and the load acting on the tires is represented by LD, the first estimation unit estimates the amount of damage on the basis of a result of calculation of (LD×

A), and

rapid deceleration operation data indicating carrying out of the rapid deceleration operation contains the amount of damage estimated by the first estimation unit.

7. The management system for a mining machine according to claim 4, further comprising a steering force detection device configured to detect a steering force that changes a direction of the tires, wherein

the damaging operation includes a stationary steering operation of changing the direction of the tires at a second speed or lower, and

the determination unit determines whether or not the stationary steering operation has been carried out on the basis of traveling speed data indicating the traveling speed of the mining machine and steering force data indicating the steering force.

8. The management system for a mining machine according to claim 7, further comprising a second estimation unit configured to estimate an amount of damage to the tires caused by the stationary steering operation, wherein

when a load acting on the tires is represented by LD, the second estimation unit estimates the amount of damage on the basis of LD, and

stationary steering operation data indicating carrying out of the stationary steering operation contains the amount of damage estimated by the second estimation unit.

9. The management system for a mining machine according to claim 4, further comprising a load detection device configured to detect a load acting on the tires, wherein

the damaging operation includes an aggressive cornering operation of making the mining machine travel along a curve having a radius of curvature of a predetermined value or smaller at a third speed or higher, and

the determination unit determines whether or not the aggressive cornering operation has been carried out on the basis of traveling speed data indicating the traveling speed of the mining machine, load data indicating the load acting on the tires, and the radius of curvature of the curve.

10. The management system for a mining machine according to claim 9, further comprising a third estimation unit configured to estimate an amount of damage to the tires caused by the aggressive cornering operation, wherein

when the traveling speed of the mining machine is represented by V, the load acting on the tires is represented by LD, and the radius of curvature of the corner is represented by R, the third estimation unit estimates the amount of damage on the basis of a result of calculation of (LD×

V²)/R, and

aggressive cornering operation data indicating carrying out of the aggressive cornering operation contains the amount of damage estimated by the third estimation unit.

11. The management system for a mining machine according to claim 5, wherein

the mining machine includes a dump truck having a vehicle body and a vessel supported by the vehicle body, and

the load acting on the tires varies according to a load placed on the vessel.

12. The management system for a mining machine according to claim 1, wherein

the data acquisition unit acquires mining machine identification data indicating the mining machine on which the damaging operation has been carried out, and

the association data contains the damaging operation data associated with the mining machine identification data.

13. The management system for a mining machine according to claim 1, wherein

the data acquisition unit acquires time point data indicating a time point at which the damaging operation has been carried out, and

the association data contains the damaging operation data associated with the time point data.

14. The management system for a mining machine according to claim 1, further comprising a travel path computation unit configured to generate a reference travel path in the mine on the basis of position data of an actual travel path along which multiple mining machines have traveled in the mine, wherein

the data acquisition unit acquires the damaging operation data when the mining machine is present on the reference travel path.

15. The management system for a mining machine according to claim 1, wherein the data output unit includes a report creation unit configured to create a report of the association data.

18. The management system for a mining machine according to claim 7, wherein

the mining machine includes a dump truck having a vehicle body and a vessel supported by the vehicle body, and

the load acting on the tires varies according to a load placed on the vessel.

19. The management system for a mining machine according to claim 9, wherein

the mining machine includes a dump truck having a vehicle body and a vessel supported by the vehicle body, and

the load acting on the tires varies according to a load placed on the vessel.

16. A management method for a mining machine on which tires are mounted and which travels in a mine by operation performed by a driver, the management method comprising:

determining whether or not a damaging operation damaging the tires has been carried out;

acquiring damaging operation data indicating carrying out of the damaging operation, and one or both of driver identification data indicating a driver who has carried out the damaging operation and position data indicating a position of the mining machine on which the damaging operation has been carried out; and

outputting association data containing the damaging operation data associated with one or both of the driver identification data and the position data.

17. A dump truck on which tires are mounted and which travels in a mine by operation performed by a driver, the dump truck comprising:

a determination unit configured to determine whether or not a damaging operation damaging the tires has been carried out;

a data acquisition unit configured to acquire damaging operation data indicating carrying out of the damaging operation, and one or both of driver identification data indicating a driver who has carried out the damaging operation and position data indicating a position on which the damaging operation has been carried out; and

a data output unit configured to output association data containing the damaging operation data associated with one or both of the driver identification data and the position data.