Anti-toppling device for construction machine
First Claim
1. An anti-toppling device for a construction machine which moves by means of a mobile platform and performs tasks by means of a plurality of operating tools, comprising:
- first detection means for detecting the relative angle of rotation of the plurality of operating tools;
a plurality of second detection means for detecting values of moment components contributing to toppling for each of the plurality operating tools; and
control means for judging toppling of the construction machine on the basis of the detection signals from the first and second detection means and controlling the construction machine such as to be prevented from toppling over on the basis of results of the judgement.
1 Assignment
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Accused Products
Abstract
To prevent toppling of a construction machine where a plurality of operating tools are provided on a single mobile platform, a control section detects the cylinder axial forces, joint angles and relative angle of rotation for a plurality of operating tools provided rotatably on a single mobile platform, and a moment calculator calculates a composite moment for the plurality of operating tools on the basis of these detection results and further calculates a stability value relating to toppling, from this composite moment and a reference moment. If the calculated stability value is less than a reference value, an anti-toppling controller issues an alarm from the alarm via an output controller and halts the operation of the plurality of operating tools, or alternatively, if the operation of the operating lever input via the lever gain calculator will cause the stability to fall below a set value, it controls a hydraulic control section such that the action of the operating tool corresponding to this operation is prohibited. By allowing the operating tool located on the base where the control section and hydraulic control section are installed to be detected by electrical signals, but using pressure signals only for the other operating tools, the need for electrical swivels between the plurality of devices is removed.
22 Citations
18 Claims
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1. An anti-toppling device for a construction machine which moves by means of a mobile platform and performs tasks by means of a plurality of operating tools, comprising:
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first detection means for detecting the relative angle of rotation of the plurality of operating tools; a plurality of second detection means for detecting values of moment components contributing to toppling for each of the plurality operating tools; and control means for judging toppling of the construction machine on the basis of the detection signals from the first and second detection means and controlling the construction machine such as to be prevented from toppling over on the basis of results of the judgement. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification