Systems and methods of preventing run-away state in industrial machine

A technology of industrial machinery and computer, applied in mechanically driven excavators/dredgers, earth movers/shovels, construction, etc., can solve problems such as machine out of control, industrial machinery or other equipment damage, loss of motion control, etc.

Inactive Publication Date: 2018-05-22
JOY GLOBAL SURFACE MINING INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, the industrial machinery has the potential to lose control of one or more kinematic pairs, causing the machine to go into a runaway state
Industrial machinery that is out of control may cause damage to industrial machinery or other equipment

Method used

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  • Systems and methods of preventing run-away state in industrial machine
  • Systems and methods of preventing run-away state in industrial machine
  • Systems and methods of preventing run-away state in industrial machine

Examples

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Embodiment Construction

[0020] Although the invention described herein can be applied to, performed by, or used in conjunction with various industrial machines (e.g., rope shovels, draglines, AC machines, DC machines, etc.), Embodiments of the invention are described herein with respect to electric rope or power shovels, such as figure 1 The power shovel 10 is shown. The power shovel 10 includes tracks 15 for propelling the shovel 10 forward and rearward and turning the rope shovel 10 (ie, by changing the speed and / or direction of the left and right tracks relative to each other). Tracks 15 support a base 25 containing a cab 30 . The rope shovel 10 also includes a pivotable dipper handle 45 and an attachment 50 . In this embodiment, the attachment 50 is shown as a bucket. The attachment 50 includes a door 55 for pouring the contents of the attachment 50 . Movement of the crawler belt 15 is not necessary for the pivoting movement. The base 25 is able to swing or swivel relative to the track 15 ab...

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PUM

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Abstract

A system and method for preventing a run-away state of an industrial machine. Joints of the industrial machine are monitored in order to determine if the industrial machine is in danger of entering arun-away state. If a joint parameter exceeds a threshold value, which is indicative of the potential to enter a run-away state, then a force or torque limit is increased so that the industrial machinehas additional force or torque to slow down the industrial machine when decelerating. The additional torque prevents the industrial machine from entering the run-away state.

Description

[0001] This application claims priority to US Provisional Application No. 62 / 419,582, filed November 9, 2016, the entire contents of which are hereby incorporated by reference into this application. technical field [0002] This application relates to the control of industrial machinery. Background technique [0003] Due to operational variability, maintenance practices, and other unknowns, industrial machinery, such as excavating machinery, may experience loads that exceed or approach the design limits of the industrial machinery. In this situation, it is possible for an industrial machine to lose control of one or more kinematic joints, causing the machine to go into a runaway state. Industrial machinery that is out of control may cause damage to industrial machinery or other equipment. Contents of the invention [0004] Embodiments of the present invention provide systems and methods for preventing runaway conditions of industrial machinery. A kinematic joint of an in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02F9/24
CPCE02F9/24E02F3/46E02F9/265E02F9/268E02F3/308E02F9/226E02F9/2025
Inventor W·P·泰勒P·S·瑞安B·J·戴尔佛斯
Owner JOY GLOBAL SURFACE MINING INC
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