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Method and system for monitoring operation of a cable shovel

A monitoring system and cable technology, applied in mechanically driven excavators/dredgers, slitting machines, earth-moving drilling, etc., can solve problems such as directness and simplicity

Active Publication Date: 2015-07-29
CATERPILLAR TRIMBLE CONTROL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The Fournier system and others are not as straightforward and simple as one might expect

Method used

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  • Method and system for monitoring operation of a cable shovel
  • Method and system for monitoring operation of a cable shovel
  • Method and system for monitoring operation of a cable shovel

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0014] figure 1 and figure 2 Side and rear views, respectively, of an electric cable shovel 10 including an embodiment of a monitoring system. The shovel 10 includes a shovel body 12 mounted for rotation on a base 14 . The base 14 includes a pair of crawlers 16 that are energized by a motor (not shown) to enable the shovel 10 to be driven around the mine site. The electric motor may be a diesel engine, multiple electric motors or one electric motor receiving power from a motor generator set carried on the shovel. Shovel 10 is controlled by an operator in cab 18 . Boom 20 (for simplification purpose in figure 2 (omitted in ) extends upward from the shovel main body 12 and is connected to the main body 12 at its lower end. In the shovel configuration shown, the boom 20 is maintained in a fixed position relative to the main body 12, but an angle sensor could also be provided to further improve the positional accuracy of the calculated bucket position. However, some shovel...

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PUM

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Abstract

A monitor system for an electric cable shovel determines when the shovel has completed a digging operation, and a subsequent dumping operation. The system includes an inclinometer, a current sensor, and a monitor circuit. The inclinometer is mounted on the dipper arm for providing an output indicative of the inclination of the dipper arm. The current sensor senses the level of the electrical current supplied to the electric motor. The monitor circuit determines when the current sensor provides an indication of a current level in excess of a digging current threshold level for a period of time in excess of a predetermined period, and during such period of time the inclinometer indicates that the inclination of the dipper arm is below a digging threshold inclination. In such a case, the monitor circuit provides an output indicating that the shovel has completed a digging operation. A subsequent dumping operation is monitored in a similar manner, with the rotation of the monitor and the actuation of the trip lever being sensed. GPS receivers on the electric cable shovel body provide an indication of the location at which the shovel is digging, and a worksite model is referenced to determine the material being mined.

Description

technical field [0001] The present invention relates to a monitoring system for an electric cable shovel, and a method of operating a monitoring system for an electric cable shovel. Background technique [0002] Electric cable shovels are large excavating machines widely used in material removal operations, for example in the mining industry. The process of removing material from a mine site is typically carried out by using a digital model of the site's topography, which includes information defining the location of ore deposits within the site, and defining the different densities or grades of ore and topology of the site. The site model may include property boundaries, not only of the mine itself, but also any internal boundaries marking portions of the mine that may be independently owned. Using this information, a mine plan can be developed that defines the manner in which overburden and ore will be removed from the worksite. In the past, surveying and staking personn...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21C27/30E21C35/24
CPCE02F9/2095E02F9/264E02F3/304E02F9/261E02F3/46
Inventor C·W·基福尔
Owner CATERPILLAR TRIMBLE CONTROL TECH