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US 2017/0284037 A1Published application
Frame Distortion Control
AssigneeWirtgen GmbH
InventorsMatthias Fritz, Martin Dahm, Martin Lenz
Life of this patent
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Abstract
A slipform paving machine includes a laser source for generating a laser reference plane. At least two laser receivers are mounted on the machine and intersect the laser reference plane. Inputs from the laser receivers are utilized to control distortion of the frame of the slipform paver machine.
Claims38
A construction machine apparatus, comprising:
- a machine frame:
- at least two self-propelling ground engaging units;
- a plurality of height adjustable supports, at least three of the height adjustable supports being arranged to support the machine frame from the ground engaging units;
- a laser plane source mounted on the machine frame at a first location and arranged to generate a laser plane;
- first and second laser sensors mounted on the construction machine at at least two other locations and arranged to intersect the laser plane to detect a height of the at least two other locations relative to the laser plane;
- and
- a controller configured to receive input signals from the first and second laser sensors and to control height adjustment of at least one of the at least two other locations.
4 more elements
A slipform paving machine apparatus, comprising:
- a machine frame including:
- a reference side frame member;
- a control side frame member;
- and
- at least one transverse frame member connected to the side frame members, the at least one transverse frame member being adjustable to adjust a frame width between the side frame members;
- a mold supported from the machine frame for forming concrete into a molded concrete structure as the apparatus moves forward;
- a laser plane source mounted on the frame and arranged to generate a laser plane;
- first and second laser sensors mounted on the frame and arranged to intersect the laser plane to detect a height of the frame relative to the laser plane at a location of each laser sensor, at least one of the laser plane source, the first laser sensor and the second laser sensor being mounted on each of the side frame members;
- at least one reference side ground engaging unit and at least one control side ground engaging unit;
- front and rear reference side height adjustable supports supporting the reference side frame member from the at least one reference side ground engaging unit;
- front and rear control side height adjustable supports supporting the control side frame member from the at least one control side ground engaging unit;
- a cross-slope sensor mounted on the machine frame and arranged to detect a cross-slope angle of the machine frame;
- and
- a controller configured to receive input signals from the first and second laser sensors and from the cross-slope sensor, the controller also configured to control height adjustment of at least the front and rear control side height adjustable supports.
11 more elements
A method of operating a construction machine, the method comprising:
- (a) generating a laser reference plane with a laser source supported from a machine frame of the construction machine, such that the laser reference plane is fixed relative to at least one location on the machine frame;
- (b) detecting a height relative to the laser reference plane of at least two other locations on the construction machine by monitoring signals from at least two laser sensors mounted on the construction machine at the at least two other locations, the at least two laser sensors intersecting the laser plane;
- and
- (c) adjusting the height relative to the laser reference plane of at least one of the at least two other locations in response to the heights detected in step (b).
1 more element
Dependencies are inferred from the claim text.